Optimize a model with 51 rows, 1275 columns and 2550 nonzeros Presolve time: 0.00s Presolved: 51 rows, 1275 columns, 2550 nonzeros Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 853.0000000 Root relaxation: objective 5.275000e+02, 62 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 527.50000 0 6 853.00000 527.50000 38.2% - 0s H 0 0 543.0000000 527.50000 2.85% - 0s 0 0 528.00000 0 6 543.00000 528.00000 2.76% - 0s 0 0 528.00000 0 6 543.00000 528.00000 2.76% - 0s 0 0 529.00000 0 6 543.00000 529.00000 2.58% - 0s 0 0 530.50000 0 10 543.00000 530.50000 2.30% - 0s 0 0 530.66667 0 15 543.00000 530.66667 2.27% - 0s 0 0 530.66667 0 23 543.00000 530.66667 2.27% - 0s 0 0 530.66667 0 17 543.00000 530.66667 2.27% - 0s H 0 0 531.0000000 530.66667 0.06% - 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 3 Explored 0 nodes (169 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.310000000000e+02, best bound 5.310000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 30), (6, 39), (8, 24), (8, 44), (9, 27), (9, 49), (10, 50), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 51), (20, 41), (20, 42), (22, 30), (22, 35), (23, 29), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (39, 50), (41, 43), (43, 45)] adding cut for [(36, 37), (4, 37), (4, 21), (21, 36)] Optimize a model with 53 rows, 1275 columns and 3151 nonzeros Presolve time: 0.00s Presolved: 53 rows, 1275 columns, 3151 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.305000e+02, 75 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 530.50000 0 6 1672.00000 530.50000 68.3% - 0s Another try with MIP start H 0 0 562.0000000 530.50000 5.60% - 0s 0 0 531.00000 0 6 562.00000 531.00000 5.52% - 0s 0 0 531.00000 0 6 562.00000 531.00000 5.52% - 0s H 0 0 539.0000000 531.00000 1.48% - 0s 0 0 531.00000 0 6 539.00000 531.00000 1.48% - 0s 0 2 532.50000 0 6 539.00000 532.50000 1.21% - 0s H 3 3 535.0000000 532.50000 0.47% 1.3 0s Explored 11 nodes (268 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.340000000000e+02, best bound 5.340000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (4, 29), (4, 37), (9, 27), (9, 49), (10, 50), (10, 51), (11, 40), (11, 50), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 40), (36, 37)] adding cut for [(5, 18), (5, 19), (38, 45), (41, 42), (43, 45), (14, 42), (14, 26), (15, 19), (15, 26), (18, 38), (20, 41), (20, 43)] adding cut for [(8, 24), (8, 44), (24, 25), (25, 44)] adding cut for [(16, 34), (16, 46), (34, 46)] Optimize a model with 57 rows, 1275 columns and 3457 nonzeros Presolve time: 0.00s Presolved: 57 rows, 1275 columns, 3457 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.352500e+02, 85 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 535.25000 0 20 1672.00000 535.25000 68.0% - 0s Another try with MIP start H 0 0 574.0000000 535.25000 6.75% - 0s 0 0 535.75000 0 24 574.00000 535.75000 6.66% - 0s 0 0 535.75000 0 23 574.00000 535.75000 6.66% - 0s 0 0 536.50000 0 22 574.00000 536.50000 6.53% - 0s H 0 0 538.0000000 536.50000 0.28% - 0s * 0 0 0 537.0000000 537.00000 0.0% - 0s Cutting planes: Cover: 1 Clique: 1 MIR: 5 Zero half: 4 Explored 0 nodes (106 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.370000000000e+02, best bound 5.370000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 58 rows, 1275 columns and 3953 nonzeros Presolve time: 0.00s Presolved: 58 rows, 1275 columns, 3953 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.362500e+02, 86 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 536.25000 0 20 1672.00000 536.25000 67.9% - 0s Another try with MIP start H 0 0 551.0000000 536.25000 2.68% - 0s 0 0 536.25000 0 27 551.00000 536.25000 2.68% - 0s 0 0 536.25000 0 20 551.00000 536.25000 2.68% - 0s 0 0 537.25000 0 38 551.00000 537.25000 2.50% - 0s 0 0 537.50000 0 12 551.00000 537.50000 2.45% - 0s 0 0 537.75000 0 44 551.00000 537.75000 2.40% - 0s H 0 0 540.0000000 537.75000 0.42% - 0s 0 0 538.08333 0 40 540.00000 538.08333 0.35% - 0s H 0 0 539.0000000 538.08333 0.17% - 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 5 Explored 0 nodes (222 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.390000000000e+02, best bound 5.390000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 43), (43, 45)] Optimize a model with 59 rows, 1275 columns and 4514 nonzeros Presolve time: 0.01s Presolved: 59 rows, 1275 columns, 4514 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.375000e+02, 84 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 537.50000 0 18 1672.00000 537.50000 67.9% - 0s Another try with MIP start H 0 0 551.0000000 537.50000 2.45% - 0s 0 0 538.00000 0 13 551.00000 538.00000 2.36% - 0s 0 0 538.00000 0 8 551.00000 538.00000 2.36% - 0s 0 0 539.00000 0 26 551.00000 539.00000 2.18% - 0s 0 0 539.00000 0 39 551.00000 539.00000 2.18% - 0s 0 0 539.00000 0 29 551.00000 539.00000 2.18% - 0s H 0 0 546.0000000 539.00000 1.28% - 0s 0 2 539.00000 0 24 546.00000 539.00000 1.28% - 0s * 6 5 4 540.0000000 539.90000 0.02% 5.3 0s Cutting planes: Gomory: 2 Zero half: 5 Explored 7 nodes (265 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.400000000000e+02, best bound 5.400000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 44), (9, 23), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (17, 22), (17, 51), (18, 38), (18, 45), (20, 41), (20, 43), (21, 36), (22, 30), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 60 rows, 1275 columns and 5255 nonzeros Presolve time: 0.01s Presolved: 60 rows, 1275 columns, 5255 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.410000e+02, 79 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 541.00000 0 12 1672.00000 541.00000 67.6% - 0s Another try with MIP start H 0 0 545.0000000 541.00000 0.73% - 0s H 0 0 544.0000000 541.00000 0.55% - 0s 0 0 541.33333 0 21 544.00000 541.33333 0.49% - 0s 0 0 541.33333 0 7 544.00000 541.33333 0.49% - 0s 0 0 541.33333 0 19 544.00000 541.33333 0.49% - 0s 0 0 542.00000 0 7 544.00000 542.00000 0.37% - 0s 0 0 542.00000 0 25 544.00000 542.00000 0.37% - 0s 0 0 542.00000 0 7 544.00000 542.00000 0.37% - 0s H 0 0 543.0000000 542.00000 0.18% - 0s 0 0 543.00000 0 7 543.00000 543.00000 0.0% - 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 4 Explored 1 nodes (210 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.430000000000e+02, best bound 5.430000000000e+02, gap 0.0% adding cut for [(3, 23), (3, 30), (4, 23), (4, 29), (5, 14), (5, 18), (6, 38), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (19, 26), (20, 41), (20, 42), (22, 30), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (41, 43), (43, 45)] adding cut for [(10, 50), (10, 39), (39, 50)] adding cut for [(36, 37), (21, 36), (21, 37)] Optimize a model with 63 rows, 1275 columns and 5891 nonzeros Presolve time: 0.01s Presolved: 63 rows, 1275 columns, 5891 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.410000e+02, 95 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 541.00000 0 6 1672.00000 541.00000 67.6% - 0s Another try with MIP start H 0 0 548.0000000 541.00000 1.28% - 0s 0 0 541.33333 0 23 548.00000 541.33333 1.22% - 0s 0 0 541.33333 0 16 548.00000 541.33333 1.22% - 0s 0 0 541.42857 0 23 548.00000 541.42857 1.20% - 0s 0 0 542.50000 0 16 548.00000 542.50000 1.00% - 0s 0 0 542.50000 0 20 548.00000 542.50000 1.00% - 0s 0 0 542.57500 0 47 548.00000 542.57500 0.99% - 0s 0 0 542.65385 0 50 548.00000 542.65385 0.98% - 0s H 0 0 545.0000000 542.65385 0.43% - 0s H 0 0 543.0000000 542.65385 0.06% - 0s Cutting planes: Gomory: 3 Zero half: 8 Explored 0 nodes (224 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.430000000000e+02, best bound 5.430000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (4, 29), (4, 37), (5, 14), (5, 18), (6, 38), (6, 39), (8, 24), (8, 27), (9, 27), (9, 32), (10, 50), (10, 51), (11, 31), (11, 40), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 51), (18, 38), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (39, 50), (41, 43), (43, 45)] Optimize a model with 64 rows, 1275 columns and 6752 nonzeros Presolve time: 0.01s Presolved: 64 rows, 1275 columns, 6752 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.445000e+02, 87 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 544.50000 0 19 1672.00000 544.50000 67.4% - 0s Another try with MIP start H 0 0 545.0000000 544.50000 0.09% - 0s Explored 0 nodes (88 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.450000000000e+02, best bound 5.450000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 39), (11, 40), (11, 50), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (39, 50), (41, 43), (43, 45)] Optimize a model with 65 rows, 1275 columns and 7493 nonzeros Presolve time: 0.01s Presolved: 65 rows, 1275 columns, 7493 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.455000e+02, 87 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 545.50000 0 8 1672.00000 545.50000 67.4% - 0s Another try with MIP start H 0 0 550.0000000 545.50000 0.82% - 0s H 0 0 547.0000000 545.50000 0.27% - 0s 0 0 545.57143 0 30 547.00000 545.57143 0.26% - 0s Cutting planes: Zero half: 2 Explored 0 nodes (96 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.470000000000e+02, best bound 5.470000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (5, 14), (5, 18), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (18, 38), (19, 26), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (23, 29), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 66 rows, 1275 columns and 8123 nonzeros Presolve time: 0.01s Presolved: 66 rows, 1275 columns, 8123 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.467500e+02, 86 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 546.75000 0 28 1672.00000 546.75000 67.3% - 0s Another try with MIP start H 0 0 556.0000000 546.75000 1.66% - 0s H 0 0 549.0000000 546.75000 0.41% - 0s 0 0 547.00000 0 6 549.00000 547.00000 0.36% - 0s 0 0 547.00000 0 10 549.00000 547.00000 0.36% - 0s 0 0 547.00000 0 16 549.00000 547.00000 0.36% - 0s 0 0 547.33333 0 13 549.00000 547.33333 0.30% - 0s 0 0 547.33333 0 20 549.00000 547.33333 0.30% - 0s 0 0 547.33333 0 19 549.00000 547.33333 0.30% - 0s 0 0 547.33333 0 20 549.00000 547.33333 0.30% - 0s 0 0 548.00000 0 15 549.00000 548.00000 0.18% - 0s * 0 0 0 548.0000000 548.00000 0.0% - 0s Cutting planes: Clique: 1 Explored 0 nodes (192 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.480000000000e+02, best bound 5.480000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 21), (4, 23), (4, 37), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 39), (12, 39), (15, 25), (15, 26), (17, 30), (19, 26), (21, 36), (22, 30), (22, 51), (23, 29), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 18), (41, 42), (43, 45), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (6, 50)] Optimize a model with 68 rows, 1275 columns and 8594 nonzeros Presolve time: 0.01s Presolved: 68 rows, 1275 columns, 8594 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.467500e+02, 86 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 546.75000 0 31 1672.00000 546.75000 67.3% - 0s Another try with MIP start H 0 0 554.0000000 546.75000 1.31% - 0s H 0 0 551.0000000 546.75000 0.77% - 0s 0 0 546.75000 0 34 551.00000 546.75000 0.77% - 0s 0 0 546.75000 0 29 551.00000 546.75000 0.77% - 0s 0 0 547.08333 0 37 551.00000 547.08333 0.71% - 0s 0 0 547.33333 0 35 551.00000 547.33333 0.67% - 0s 0 0 547.33333 0 41 551.00000 547.33333 0.67% - 0s 0 0 547.33333 0 23 551.00000 547.33333 0.67% - 0s 0 0 547.33333 0 30 551.00000 547.33333 0.67% - 0s 0 0 547.33333 0 30 551.00000 547.33333 0.67% - 0s H 0 0 550.0000000 547.33333 0.48% - 0s 0 2 547.50000 0 30 550.00000 547.50000 0.45% - 0s H 9 2 549.0000000 547.75000 0.23% 4.6 0s Cutting planes: Gomory: 1 Clique: 1 MIR: 2 Flow cover: 1 Explored 12 nodes (267 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.490000000000e+02, best bound 5.490000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 21), (4, 23), (4, 37), (7, 24), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 30), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (23, 29), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 69 rows, 1275 columns and 9189 nonzeros Presolve time: 0.01s Presolved: 69 rows, 1275 columns, 9189 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.473333e+02, 87 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.33333 0 39 1672.00000 547.33333 67.3% - 0s Another try with MIP start 0 0 547.83333 0 44 1672.00000 547.83333 67.2% - 0s 0 0 548.38889 0 36 1672.00000 548.38889 67.2% - 0s 0 0 548.40909 0 43 1672.00000 548.40909 67.2% - 0s 0 0 548.52381 0 46 1672.00000 548.52381 67.2% - 0s 0 0 548.52381 0 50 1672.00000 548.52381 67.2% - 0s 0 0 548.54783 0 52 1672.00000 548.54783 67.2% - 0s 0 0 548.54783 0 54 1672.00000 548.54783 67.2% - 0s 0 0 548.64000 0 47 1672.00000 548.64000 67.2% - 0s H 0 0 553.0000000 548.64000 0.79% - 0s 0 0 548.64000 0 53 553.00000 548.64000 0.79% - 0s 0 0 548.64000 0 37 553.00000 548.64000 0.79% - 0s 0 0 548.64000 0 32 553.00000 548.64000 0.79% - 0s 0 0 548.64000 0 27 553.00000 548.64000 0.79% - 0s 0 0 548.64000 0 39 553.00000 548.64000 0.79% - 0s 0 0 548.65889 0 54 553.00000 548.65889 0.79% - 0s 0 0 548.67413 0 51 553.00000 548.67413 0.78% - 0s 0 0 548.67413 0 53 553.00000 548.67413 0.78% - 0s H 0 0 552.0000000 548.67413 0.60% - 0s 0 2 548.71084 0 53 552.00000 548.71084 0.60% - 0s * 22 2 7 550.0000000 550.00000 0.0% 5.0 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 4 Explored 23 nodes (391 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.500000000000e+02, best bound 5.500000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 23), (3, 30), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (25, 44), (21, 36), (21, 30), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 42), (11, 40), (11, 50), (15, 26), (16, 45), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26)] adding cut for [(10, 39), (10, 31), (12, 39), (12, 17), (17, 51), (22, 35), (22, 51), (31, 35)] Optimize a model with 72 rows, 1275 columns and 9458 nonzeros Presolve time: 0.01s Presolved: 72 rows, 1275 columns, 9458 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.473333e+02, 90 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.33333 0 39 1672.00000 547.33333 67.3% - 0s Another try with MIP start H 0 0 552.0000000 547.33333 0.85% - 0s 0 0 547.83333 0 43 552.00000 547.83333 0.75% - 0s 0 0 547.83333 0 37 552.00000 547.83333 0.75% - 0s 0 0 548.00000 0 27 552.00000 548.00000 0.72% - 0s 0 0 548.28571 0 38 552.00000 548.28571 0.67% - 0s 0 0 548.50000 0 29 552.00000 548.50000 0.63% - 0s 0 0 548.54545 0 45 552.00000 548.54545 0.63% - 0s 0 0 548.64516 0 49 552.00000 548.64516 0.61% - 0s 0 0 548.64516 0 51 552.00000 548.64516 0.61% - 0s 0 0 548.64516 0 49 552.00000 548.64516 0.61% - 0s 0 2 548.70000 0 49 552.00000 548.70000 0.60% - 0s * 23 3 6 551.0000000 550.00000 0.18% 5.7 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 5 Explored 31 nodes (402 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.510000000000e+02, best bound 5.510000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 12), (3, 17), (4, 29), (4, 37), (7, 24), (8, 24), (8, 44), (9, 23), (9, 27), (10, 31), (10, 51), (11, 40), (11, 50), (12, 39), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 51), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (39, 50), (41, 43), (43, 45)] Optimize a model with 73 rows, 1275 columns and 10199 nonzeros Presolve time: 0.01s Presolved: 73 rows, 1275 columns, 10199 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.473333e+02, 96 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.33333 0 39 1672.00000 547.33333 67.3% - 0s Another try with MIP start H 0 0 560.0000000 547.33333 2.26% - 0s 0 0 548.11538 0 46 560.00000 548.11538 2.12% - 0s 0 0 548.11538 0 39 560.00000 548.11538 2.12% - 0s 0 0 548.12500 0 47 560.00000 548.12500 2.12% - 0s 0 0 548.77778 0 48 560.00000 548.77778 2.00% - 0s H 0 0 552.0000000 548.77778 0.58% - 0s 0 0 548.91262 0 50 552.00000 548.91262 0.56% - 0s 0 1 548.92308 0 50 552.00000 548.92308 0.56% - 0s H 10 6 551.0000000 549.63788 0.25% 0.3 0s Cutting planes: Gomory: 8 Zero half: 3 Explored 14 nodes (424 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.510000000000e+02, best bound 5.510000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 18), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (18, 38), (35, 51), (20, 41), (20, 42), (6, 50), (10, 51), (10, 50), (31, 35)] adding cut for [(2, 23), (3, 12), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (12, 39), (17, 22), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(8, 44), (8, 24), (15, 25), (15, 26), (19, 26), (24, 49), (25, 44)] Optimize a model with 76 rows, 1275 columns and 10537 nonzeros Presolve time: 0.01s Presolved: 76 rows, 1275 columns, 10537 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.473333e+02, 94 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.33333 0 39 1672.00000 547.33333 67.3% - 0s Another try with MIP start H 0 0 552.0000000 547.33333 0.85% - 0s 0 0 548.12500 0 47 552.00000 548.12500 0.70% - 0s 0 0 548.12500 0 40 552.00000 548.12500 0.70% - 0s 0 0 548.12500 0 45 552.00000 548.12500 0.70% - 0s 0 0 548.80000 0 51 552.00000 548.80000 0.58% - 0s 0 0 549.04651 0 57 552.00000 549.04651 0.54% - 0s 0 0 549.28947 0 56 552.00000 549.28947 0.49% - 0s 0 0 549.28947 0 58 552.00000 549.28947 0.49% - 0s 0 0 549.34694 0 55 552.00000 549.34694 0.48% - 0s 0 0 549.34694 0 55 552.00000 549.34694 0.48% - 0s 0 2 549.41379 0 55 552.00000 549.41379 0.47% - 0s * 11 0 8 551.0000000 551.00000 0.0% 5.3 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 6 Explored 12 nodes (307 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.510000000000e+02, best bound 5.510000000000e+02, gap 0.0% adding cut for [(5, 14), (5, 18), (6, 50), (10, 39), (10, 50), (11, 31), (11, 40), (12, 17), (12, 39), (14, 26), (15, 26), (16, 45), (16, 46), (17, 30), (18, 38), (22, 30), (22, 51), (31, 35), (34, 40), (34, 46), (35, 51), (38, 45)] adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (25, 44), (21, 36), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] adding cut for [(41, 42), (41, 43), (20, 42), (20, 43)] Optimize a model with 79 rows, 1275 columns and 10916 nonzeros Presolve time: 0.01s Presolved: 79 rows, 1275 columns, 10916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.473333e+02, 85 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.33333 0 39 1672.00000 547.33333 67.3% - 0s Another try with MIP start H 0 0 552.0000000 547.33333 0.85% - 0s 0 0 548.77778 0 48 552.00000 548.77778 0.58% - 0s 0 0 548.77778 0 37 552.00000 548.77778 0.58% - 0s 0 0 548.81818 0 48 552.00000 548.81818 0.58% - 0s 0 0 548.94783 0 53 552.00000 548.94783 0.55% - 0s 0 0 549.18699 0 48 552.00000 549.18699 0.51% - 0s 0 0 549.23333 0 44 552.00000 549.23333 0.50% - 0s 0 0 549.28230 0 51 552.00000 549.28230 0.49% - 0s 0 0 549.30137 0 53 552.00000 549.30137 0.49% - 0s 0 0 549.30137 0 57 552.00000 549.30137 0.49% - 0s 0 0 549.30711 0 51 552.00000 549.30711 0.49% - 0s 0 2 549.34392 0 51 552.00000 549.34392 0.48% - 0s Cutting planes: Gomory: 2 Clique: 1 MIR: 2 Zero half: 10 Explored 32 nodes (375 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (8, 27), (8, 44), (9, 27), (9, 32), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 80 rows, 1275 columns and 11412 nonzeros Presolve time: 0.01s Presolved: 80 rows, 1275 columns, 11412 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.474651e+02, 91 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 547.46512 0 41 1672.00000 547.46512 67.3% - 0s Another try with MIP start H 0 0 572.0000000 547.46512 4.29% - 0s 0 0 548.77778 0 48 572.00000 548.77778 4.06% - 0s 0 0 548.77778 0 41 572.00000 548.77778 4.06% - 0s 0 0 548.77778 0 48 572.00000 548.77778 4.06% - 0s 0 0 548.94931 0 57 572.00000 548.94931 4.03% - 0s 0 0 549.14602 0 58 572.00000 549.14602 4.00% - 0s 0 0 549.15055 0 56 572.00000 549.15055 3.99% - 0s 0 0 549.15055 0 60 572.00000 549.15055 3.99% - 0s H 0 0 568.0000000 549.15055 3.32% - 0s H 0 0 557.0000000 549.15055 1.41% - 0s 0 2 549.19129 0 60 557.00000 549.19129 1.40% - 0s * 32 17 21 556.0000000 549.66667 1.14% 5.5 0s * 54 27 21 554.0000000 550.21429 0.68% 5.1 0s * 64 19 4 553.0000000 550.41667 0.47% 5.3 0s * 78 8 12 552.0000000 550.66667 0.24% 5.4 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 5 Explored 90 nodes (703 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 12), (3, 21), (4, 29), (4, 37), (5, 18), (5, 43), (8, 24), (8, 44), (9, 23), (9, 27), (11, 31), (11, 40), (12, 17), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 30), (18, 38), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (24, 49), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42)] Optimize a model with 81 rows, 1275 columns and 12153 nonzeros Presolve time: 0.01s Presolved: 81 rows, 1275 columns, 12153 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.480000e+02, 99 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.00000 0 47 1672.00000 548.00000 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.00000 1.97% - 0s 0 0 548.87500 0 49 559.00000 548.87500 1.81% - 0s 0 0 548.87500 0 47 559.00000 548.87500 1.81% - 0s 0 0 549.05000 0 51 559.00000 549.05000 1.78% - 0s 0 0 549.26111 0 56 559.00000 549.26111 1.74% - 0s 0 0 549.33509 0 59 559.00000 549.33509 1.73% - 0s 0 0 549.34403 0 60 559.00000 549.34403 1.73% - 0s H 0 0 555.0000000 549.34403 1.02% - 0s H 0 0 552.0000000 549.34403 0.48% - 0s 0 2 549.35704 0 57 552.00000 549.35704 0.48% - 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 5 Explored 11 nodes (360 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 43), (11, 40), (11, 50), (15, 25), (15, 26), (16, 38), (16, 46), (8, 44), (8, 24), (20, 41), (20, 42), (14, 42), (14, 26), (24, 49), (25, 44)] adding cut for [(35, 51), (3, 21), (3, 30), (36, 37), (9, 23), (9, 27), (10, 39), (10, 31), (12, 39), (17, 51), (17, 22), (21, 36), (22, 30), (23, 33), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 83 rows, 1275 columns and 12553 nonzeros Presolve time: 0.01s Presolved: 83 rows, 1275 columns, 12553 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.480000e+02, 93 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.00000 0 44 1672.00000 548.00000 67.2% - 0s Another try with MIP start H 0 0 582.0000000 548.00000 5.84% - 0s 0 0 548.90000 0 51 582.00000 548.90000 5.69% - 0s 0 0 548.90000 0 44 582.00000 548.90000 5.69% - 0s 0 0 548.90000 0 51 582.00000 548.90000 5.69% - 0s 0 0 549.11429 0 50 582.00000 549.11429 5.65% - 0s 0 0 549.12571 0 56 582.00000 549.12571 5.65% - 0s 0 0 549.20438 0 51 582.00000 549.20438 5.63% - 0s 0 0 549.20438 0 55 582.00000 549.20438 5.63% - 0s 0 0 549.21525 0 57 582.00000 549.21525 5.63% - 0s 0 0 549.21525 0 61 582.00000 549.21525 5.63% - 0s 0 0 549.29298 0 55 582.00000 549.29298 5.62% - 0s 0 0 549.29923 0 61 582.00000 549.29923 5.62% - 0s 0 0 549.36488 0 60 582.00000 549.36488 5.61% - 0s 0 0 549.36488 0 64 582.00000 549.36488 5.61% - 0s 0 0 549.39024 0 55 582.00000 549.39024 5.60% - 0s 0 0 549.39024 0 59 582.00000 549.39024 5.60% - 0s 0 0 549.39243 0 61 582.00000 549.39243 5.60% - 0s H 0 0 569.0000000 549.39243 3.45% - 0s H 0 0 553.0000000 549.39243 0.65% - 0s 0 2 549.41054 0 61 553.00000 549.41054 0.65% - 0s * 8 5 7 552.0000000 550.27273 0.31% 6.9 0s Cutting planes: MIR: 4 Zero half: 6 Explored 19 nodes (382 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (12, 39), (17, 51), (17, 39), (3, 21), (3, 30), (21, 36), (22, 35), (22, 30), (25, 44), (24, 25), (24, 49), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 42), (10, 50), (10, 31), (11, 40), (11, 31), (15, 26), (16, 45), (16, 46), (20, 43), (20, 41), (14, 26), (14, 42)] Optimize a model with 85 rows, 1275 columns and 12899 nonzeros Presolve time: 0.01s Presolved: 85 rows, 1275 columns, 12899 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.480214e+02, 94 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.02143 0 49 1672.00000 548.02143 67.2% - 0s Another try with MIP start H 0 0 590.0000000 548.02143 7.12% - 0s 0 0 549.06061 0 52 590.00000 549.06061 6.94% - 0s 0 0 549.15789 0 51 590.00000 549.15789 6.92% - 0s 0 0 549.15789 0 55 590.00000 549.15789 6.92% - 0s 0 0 549.17316 0 55 590.00000 549.17316 6.92% - 0s 0 0 549.17316 0 59 590.00000 549.17316 6.92% - 0s 0 0 549.23684 0 53 590.00000 549.23684 6.91% - 0s 0 0 549.24891 0 60 590.00000 549.24891 6.91% - 0s 0 0 549.32268 0 65 590.00000 549.32268 6.89% - 0s 0 0 549.44708 0 63 590.00000 549.44708 6.87% - 0s 0 0 549.44708 0 64 590.00000 549.44708 6.87% - 0s 0 0 549.47537 0 67 590.00000 549.47537 6.87% - 0s 0 0 549.48223 0 68 590.00000 549.48223 6.87% - 0s 0 0 549.50051 0 66 590.00000 549.50051 6.86% - 0s 0 0 549.50096 0 64 590.00000 549.50096 6.86% - 0s 0 0 549.50150 0 68 590.00000 549.50150 6.86% - 0s H 0 0 569.0000000 549.50150 3.43% - 0s H 0 0 558.0000000 549.50150 1.52% - 0s H 0 0 555.0000000 549.50150 0.99% - 0s 0 0 549.50150 0 49 555.00000 549.50150 0.99% - 0s 0 0 549.50150 0 57 555.00000 549.50150 0.99% - 0s 0 0 549.53471 0 64 555.00000 549.53471 0.98% - 0s 0 0 549.66196 0 58 555.00000 549.66196 0.96% - 0s 0 0 549.66196 0 62 555.00000 549.66196 0.96% - 0s H 0 0 553.0000000 549.66196 0.60% - 0s 0 2 549.66724 0 60 553.00000 549.66724 0.60% - 0s * 8 5 7 552.0000000 550.29193 0.31% 7.5 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 6 Explored 22 nodes (462 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 17), (4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 51), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 39), (39, 50), (41, 42), (11, 40), (11, 50), (15, 26), (16, 45), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 87 rows, 1275 columns and 13272 nonzeros Presolve time: 0.01s Presolved: 87 rows, 1275 columns, 13272 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.481887e+02, 96 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.18868 0 48 1672.00000 548.18868 67.2% - 0s Another try with MIP start H 0 0 556.0000000 548.18868 1.40% - 0s 0 0 549.46170 0 54 556.00000 549.46170 1.18% - 0s 0 0 549.46170 0 48 556.00000 549.46170 1.18% - 0s 0 0 549.46170 0 54 556.00000 549.46170 1.18% - 0s H 0 0 555.0000000 549.46170 1.00% - 0s 0 0 549.62910 0 54 555.00000 549.62910 0.97% - 0s 0 0 549.76948 0 58 555.00000 549.76948 0.94% - 0s 0 2 550.11516 0 58 555.00000 550.11516 0.88% - 0s H 11 8 554.0000000 550.43196 0.64% 0.0 0s * 60 11 25 553.0000000 550.85331 0.39% 9.5 0s * 72 1 21 552.0000000 551.58333 0.08% 8.7 0s Cutting planes: Gomory: 13 Clique: 1 MIR: 3 Zero half: 12 Explored 73 nodes (897 simplex iterations) in 0.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.520000000000e+02, best bound 5.520000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (7, 24), (41, 42), (11, 40), (11, 50), (15, 25), (15, 26), (16, 45), (16, 46), (8, 44), (8, 24), (19, 26), (20, 43), (20, 41), (14, 42), (14, 19), (25, 44)] adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (10, 51), (10, 31), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 89 rows, 1275 columns and 13653 nonzeros Presolve time: 0.01s Presolved: 89 rows, 1275 columns, 13653 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.481887e+02, 96 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.18868 0 48 1672.00000 548.18868 67.2% - 0s Another try with MIP start H 0 0 569.0000000 548.18868 3.66% - 0s 0 0 549.46170 0 54 569.00000 549.46170 3.43% - 0s 0 0 549.46170 0 48 569.00000 549.46170 3.43% - 0s 0 0 549.46170 0 54 569.00000 549.46170 3.43% - 0s 0 0 549.69861 0 56 569.00000 549.69861 3.39% - 0s 0 0 549.78007 0 55 569.00000 549.78007 3.38% - 0s 0 0 549.78007 0 59 569.00000 549.78007 3.38% - 0s 0 0 549.83264 0 64 569.00000 549.83264 3.37% - 0s 0 0 549.84175 0 63 569.00000 549.84175 3.37% - 0s 0 0 549.85035 0 68 569.00000 549.85035 3.37% - 0s H 0 0 561.0000000 549.85035 1.99% - 0s 0 2 549.92868 0 68 561.00000 549.92868 1.97% - 0s * 21 18 14 556.0000000 550.64976 0.96% 7.9 0s * 24 12 14 555.0000000 550.64976 0.78% 7.2 0s * 35 11 10 553.0000000 550.66055 0.42% 7.2 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 7 Explored 61 nodes (670 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.530000000000e+02, best bound 5.530000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (5, 18), (5, 43), (7, 24), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (23, 29), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42)] Optimize a model with 90 rows, 1275 columns and 14394 nonzeros Presolve time: 0.02s Presolved: 90 rows, 1275 columns, 14394 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482628e+02, 97 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.26280 0 49 1672.00000 548.26280 67.2% - 0s Another try with MIP start H 0 0 560.0000000 548.26280 2.10% - 0s 0 0 549.46170 0 54 560.00000 549.46170 1.88% - 0s 0 0 549.46170 0 49 560.00000 549.46170 1.88% - 0s 0 0 549.50802 0 58 560.00000 549.50802 1.87% - 0s 0 0 549.60267 0 58 560.00000 549.60267 1.86% - 0s 0 0 549.60267 0 62 560.00000 549.60267 1.86% - 0s 0 0 549.63046 0 58 560.00000 549.63046 1.85% - 0s 0 0 549.63530 0 65 560.00000 549.63530 1.85% - 0s H 0 0 559.0000000 549.63530 1.68% - 0s 0 2 549.63550 0 65 559.00000 549.63550 1.68% - 0s * 20 19 14 557.0000000 550.42708 1.18% 11.0 0s * 32 18 8 555.0000000 550.43137 0.82% 9.6 0s * 61 25 10 554.0000000 550.64000 0.61% 8.2 0s * 114 11 8 553.0000000 551.10811 0.34% 7.3 0s Cutting planes: Gomory: 4 MIR: 1 Zero half: 8 Explored 129 nodes (1214 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.530000000000e+02, best bound 5.530000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (14, 19), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] adding cut for [(3, 12), (3, 17), (6, 39), (6, 50), (10, 50), (10, 51), (12, 39), (17, 51)] Optimize a model with 92 rows, 1275 columns and 14747 nonzeros Presolve time: 0.02s Presolved: 92 rows, 1275 columns, 14747 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482628e+02, 97 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.26280 0 49 1672.00000 548.26280 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.26280 1.75% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 49 558.00000 549.46170 1.53% - 0s 0 0 549.50802 0 58 558.00000 549.50802 1.52% - 0s 0 0 549.62608 0 59 558.00000 549.62608 1.50% - 0s 0 0 549.62608 0 63 558.00000 549.62608 1.50% - 0s 0 0 549.67938 0 56 558.00000 549.67938 1.49% - 0s H 0 0 557.0000000 549.67938 1.31% - 0s 0 0 549.74143 0 61 557.00000 549.74143 1.30% - 0s 0 0 549.74365 0 60 557.00000 549.74365 1.30% - 0s 0 0 549.74365 0 64 557.00000 549.74365 1.30% - 0s 0 0 549.75759 0 58 557.00000 549.75759 1.30% - 0s 0 0 549.76142 0 63 557.00000 549.76142 1.30% - 0s H 0 0 553.0000000 549.76142 0.59% - 0s 0 2 549.82384 0 62 553.00000 549.82384 0.57% - 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 14 Explored 36 nodes (505 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.530000000000e+02, best bound 5.530000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 39), (39, 50), (41, 43), (10, 50), (10, 51), (11, 40), (11, 31), (15, 26), (16, 45), (16, 46), (43, 45), (20, 41), (20, 42), (14, 26), (14, 42), (31, 35)] adding cut for [(3, 21), (3, 30), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (12, 17), (17, 22), (21, 36), (22, 30), (25, 44), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] Optimize a model with 94 rows, 1275 columns and 15090 nonzeros Presolve time: 0.02s Presolved: 94 rows, 1275 columns, 15090 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482628e+02, 97 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.26280 0 49 1672.00000 548.26280 67.2% - 0s Another try with MIP start H 0 0 560.0000000 548.26280 2.10% - 0s 0 0 549.46170 0 58 560.00000 549.46170 1.88% - 0s 0 0 549.46170 0 49 560.00000 549.46170 1.88% - 0s 0 0 549.50802 0 58 560.00000 549.50802 1.87% - 0s 0 0 549.60288 0 58 560.00000 549.60288 1.86% - 0s 0 0 549.60288 0 62 560.00000 549.60288 1.86% - 0s 0 0 549.62369 0 58 560.00000 549.62369 1.85% - 0s 0 0 549.62822 0 65 560.00000 549.62822 1.85% - 0s 0 0 549.72035 0 57 560.00000 549.72035 1.84% - 0s 0 0 549.82205 0 63 560.00000 549.82205 1.82% - 0s 0 0 549.82702 0 64 560.00000 549.82702 1.82% - 0s H 0 0 559.0000000 549.82702 1.64% - 0s 0 2 549.83630 0 64 559.00000 549.83630 1.64% - 0s * 18 14 13 556.0000000 550.47202 0.99% 6.4 0s * 56 22 15 554.0000000 551.14286 0.52% 6.9 0s * 103 7 8 553.0000000 551.32222 0.30% 6.4 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 116 nodes (1018 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.530000000000e+02, best bound 5.530000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 18), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (20, 41), (20, 42), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] adding cut for [(7, 24), (8, 44), (8, 24), (15, 25), (15, 26), (19, 26), (25, 44)] Optimize a model with 96 rows, 1275 columns and 15614 nonzeros Presolve time: 0.02s Presolved: 96 rows, 1275 columns, 15614 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482628e+02, 97 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.26280 0 49 1672.00000 548.26280 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.26280 1.75% - 0s 0 0 549.46170 0 58 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 49 558.00000 549.46170 1.53% - 0s 0 0 549.50802 0 58 558.00000 549.50802 1.52% - 0s 0 0 549.62950 0 59 558.00000 549.62950 1.50% - 0s 0 0 549.62950 0 63 558.00000 549.62950 1.50% - 0s 0 0 549.67938 0 56 558.00000 549.67938 1.49% - 0s 0 0 549.74992 0 56 558.00000 549.74992 1.48% - 0s 0 0 549.75233 0 57 558.00000 549.75233 1.48% - 0s 0 0 549.75277 0 65 558.00000 549.75277 1.48% - 0s H 0 0 557.0000000 549.75277 1.30% - 0s 0 2 549.77160 0 65 557.00000 549.77160 1.30% - 0s * 27 21 19 556.0000000 551.03846 0.89% 9.0 0s * 36 19 8 554.0000000 551.35185 0.48% 8.5 0s * 45 5 6 553.0000000 551.36006 0.30% 7.8 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 60 nodes (705 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.530000000000e+02, best bound 5.530000000000e+02, gap 0.0% adding cut for [(6, 50), (7, 24), (8, 24), (8, 44), (11, 40), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 43), (25, 44), (34, 40), (34, 46), (41, 42), (43, 45)] adding cut for [(3, 12), (3, 17), (36, 37), (9, 49), (9, 27), (10, 39), (10, 31), (17, 39), (35, 51), (21, 36), (21, 30), (22, 51), (22, 30), (23, 29), (4, 37), (4, 23), (27, 32), (29, 32), (31, 35)] Optimize a model with 98 rows, 1275 columns and 16035 nonzeros Presolve time: 0.02s Presolved: 98 rows, 1275 columns, 16035 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482766e+02, 105 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27660 0 49 1672.00000 548.27660 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.27660 1.74% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 49 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.54161 0 54 558.00000 549.54161 1.52% - 0s 0 0 549.62907 0 65 558.00000 549.62907 1.50% - 0s 0 0 549.70998 0 64 558.00000 549.70998 1.49% - 0s 0 0 549.76643 0 69 558.00000 549.76643 1.48% - 0s 0 0 549.82369 0 64 558.00000 549.82369 1.47% - 0s 0 0 549.84678 0 69 558.00000 549.84678 1.46% - 0s 0 0 549.84678 0 73 558.00000 549.84678 1.46% - 0s 0 2 549.85242 0 73 558.00000 549.85242 1.46% - 0s * 27 20 19 557.0000000 550.16146 1.23% 8.6 0s * 48 20 17 555.0000000 550.44940 0.82% 7.7 0s * 62 15 10 554.0000000 550.73352 0.59% 7.6 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 141 nodes (1264 simplex iterations) in 0.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 99 rows, 1275 columns and 16470 nonzeros Presolve time: 0.02s Presolved: 99 rows, 1275 columns, 16470 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482766e+02, 105 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27660 0 49 1672.00000 548.27660 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.27660 1.74% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 49 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s H 0 0 557.0000000 549.46170 1.35% - 0s 0 0 549.54161 0 54 557.00000 549.54161 1.34% - 0s 0 0 549.62907 0 65 557.00000 549.62907 1.32% - 0s 0 0 549.70998 0 64 557.00000 549.70998 1.31% - 0s 0 0 549.76643 0 69 557.00000 549.76643 1.30% - 0s 0 0 549.82369 0 64 557.00000 549.82369 1.29% - 0s 0 0 549.84678 0 69 557.00000 549.84678 1.28% - 0s 0 0 549.84678 0 73 557.00000 549.84678 1.28% - 0s 0 2 549.85242 0 73 557.00000 549.85242 1.28% - 0s * 23 10 15 555.0000000 550.16146 0.87% 10.2 0s * 38 12 13 554.0000000 550.44940 0.64% 8.9 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 11 Explored 118 nodes (1177 simplex iterations) in 0.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (35, 51), (9, 23), (9, 27), (10, 39), (10, 31), (12, 39), (17, 51), (17, 22), (21, 36), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 42), (11, 40), (11, 50), (16, 45), (16, 46), (20, 43), (20, 41), (14, 42), (14, 19)] Optimize a model with 101 rows, 1275 columns and 16771 nonzeros Presolve time: 0.02s Presolved: 101 rows, 1275 columns, 16771 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482766e+02, 118 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27660 0 49 1672.00000 548.27660 67.2% - 0s Another try with MIP start H 0 0 557.0000000 548.27660 1.57% - 0s 0 0 549.46170 0 54 557.00000 549.46170 1.35% - 0s 0 0 549.46170 0 49 557.00000 549.46170 1.35% - 0s 0 0 549.46170 0 54 557.00000 549.46170 1.35% - 0s 0 0 549.54161 0 54 557.00000 549.54161 1.34% - 0s 0 0 549.62907 0 65 557.00000 549.62907 1.32% - 0s 0 0 549.70759 0 65 557.00000 549.70759 1.31% - 0s 0 0 549.76637 0 66 557.00000 549.76637 1.30% - 0s 0 0 549.82369 0 64 557.00000 549.82369 1.29% - 0s 0 0 549.85513 0 67 557.00000 549.85513 1.28% - 0s 0 0 549.85513 0 71 557.00000 549.85513 1.28% - 0s H 0 0 556.0000000 549.85513 1.11% - 0s 0 2 549.89502 0 71 556.00000 549.89502 1.10% - 0s * 133 45 11 555.0000000 551.57143 0.62% 7.3 0s H 137 22 554.0000000 551.57143 0.44% 7.1 0s Cutting planes: Gomory: 3 MIR: 3 Zero half: 12 Explored 198 nodes (1664 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 18), (9, 23), (9, 27), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 102 rows, 1275 columns and 17236 nonzeros Presolve time: 0.02s Presolved: 102 rows, 1275 columns, 17236 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482766e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27660 0 49 1672.00000 548.27660 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.27660 1.74% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 49 558.00000 549.46170 1.53% - 0s 0 0 549.46170 0 54 558.00000 549.46170 1.53% - 0s 0 0 549.54161 0 54 558.00000 549.54161 1.52% - 0s 0 0 549.62907 0 65 558.00000 549.62907 1.50% - 0s 0 0 549.70611 0 58 558.00000 549.70611 1.49% - 0s 0 0 549.70705 0 64 558.00000 549.70705 1.49% - 0s H 0 0 556.0000000 549.70705 1.13% - 0s 0 2 549.71487 0 64 556.00000 549.71487 1.13% - 0s * 9 8 6 554.0000000 550.27278 0.67% 13.7 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 123 nodes (1109 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 19), (14, 42), (15, 26), (16, 38), (16, 46), (17, 22), (17, 51), (20, 41), (20, 43), (21, 36), (22, 30), (24, 49), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] adding cut for [(10, 50), (10, 39), (6, 50), (6, 39)] Optimize a model with 104 rows, 1275 columns and 17837 nonzeros Presolve time: 0.02s Presolved: 104 rows, 1275 columns, 17837 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482778e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27778 0 50 1672.00000 548.27778 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.27778 2.61% - 0s 0 0 549.49037 0 59 563.00000 549.49037 2.40% - 0s 0 0 549.49037 0 50 563.00000 549.49037 2.40% - 0s 0 0 549.49221 0 59 563.00000 549.49221 2.40% - 0s 0 0 549.56863 0 63 563.00000 549.56863 2.39% - 0s 0 0 549.61905 0 58 563.00000 549.61905 2.38% - 0s 0 0 549.72662 0 58 563.00000 549.72662 2.36% - 0s 0 0 549.77258 0 61 563.00000 549.77258 2.35% - 0s 0 0 549.77258 0 65 563.00000 549.77258 2.35% - 0s 0 0 549.78078 0 64 563.00000 549.78078 2.35% - 0s 0 0 549.78975 0 69 563.00000 549.78975 2.35% - 0s 0 0 549.81069 0 59 563.00000 549.81069 2.34% - 0s 0 0 549.83649 0 60 563.00000 549.83649 2.34% - 0s 0 0 549.83649 0 64 563.00000 549.83649 2.34% - 0s 0 0 549.84138 0 71 563.00000 549.84138 2.34% - 0s H 0 0 556.0000000 549.84138 1.11% - 0s 0 2 549.84856 0 71 556.00000 549.84856 1.11% - 0s * 48 28 12 555.0000000 551.00000 0.72% 8.8 0s * 111 27 10 554.0000000 551.57143 0.44% 8.5 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 20 Explored 162 nodes (1576 simplex iterations) in 0.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 30), (6, 39), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (15, 26), (16, 45), (16, 46), (17, 39), (19, 26), (20, 41), (20, 43), (22, 30), (22, 51), (31, 35), (34, 40), (34, 46), (35, 51), (41, 42), (43, 45)] adding cut for [(2, 23), (4, 37), (4, 29), (7, 25), (8, 44), (8, 24), (9, 49), (9, 27), (25, 44), (21, 23), (21, 36), (24, 49), (36, 37), (27, 32), (29, 32)] Optimize a model with 106 rows, 1275 columns and 18257 nonzeros Presolve time: 0.02s Presolved: 106 rows, 1275 columns, 18257 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482778e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27778 0 50 1672.00000 548.27778 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.27778 2.61% - 0s 0 0 549.49037 0 59 563.00000 549.49037 2.40% - 0s 0 0 549.49037 0 50 563.00000 549.49037 2.40% - 0s 0 0 549.49221 0 59 563.00000 549.49221 2.40% - 0s 0 0 549.56863 0 63 563.00000 549.56863 2.39% - 0s 0 0 549.61905 0 58 563.00000 549.61905 2.38% - 0s 0 0 549.72662 0 58 563.00000 549.72662 2.36% - 0s 0 0 549.77258 0 61 563.00000 549.77258 2.35% - 0s 0 0 549.77258 0 65 563.00000 549.77258 2.35% - 0s 0 0 549.78078 0 64 563.00000 549.78078 2.35% - 0s 0 0 549.78975 0 69 563.00000 549.78975 2.35% - 0s 0 0 549.81069 0 59 563.00000 549.81069 2.34% - 0s 0 0 549.83649 0 60 563.00000 549.83649 2.34% - 0s 0 0 549.83649 0 64 563.00000 549.83649 2.34% - 0s 0 0 549.84138 0 71 563.00000 549.84138 2.34% - 0s H 0 0 560.0000000 549.84138 1.81% - 0s H 0 0 559.0000000 549.84138 1.64% - 0s H 0 0 556.0000000 549.84138 1.11% - 0s 0 2 549.84856 0 71 556.00000 549.84856 1.11% - 0s * 17 12 12 555.0000000 550.98326 0.72% 10.6 0s * 104 24 11 554.0000000 551.39524 0.47% 8.8 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 15 Explored 156 nodes (1567 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (11, 40), (11, 50), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 107 rows, 1275 columns and 18753 nonzeros Presolve time: 0.02s Presolved: 107 rows, 1275 columns, 18753 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482778e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.27778 0 50 1672.00000 548.27778 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.27778 2.61% - 0s 0 0 549.49037 0 59 563.00000 549.49037 2.40% - 0s 0 0 549.49037 0 50 563.00000 549.49037 2.40% - 0s 0 0 549.49221 0 59 563.00000 549.49221 2.40% - 0s 0 0 549.56863 0 63 563.00000 549.56863 2.39% - 0s 0 0 549.63079 0 65 563.00000 549.63079 2.37% - 0s 0 0 549.68526 0 60 563.00000 549.68526 2.36% - 0s 0 0 549.68526 0 64 563.00000 549.68526 2.36% - 0s 0 0 549.69089 0 64 563.00000 549.69089 2.36% - 0s H 0 0 555.0000000 549.69089 0.96% - 0s 0 2 549.69852 0 64 555.00000 549.69852 0.96% - 0s * 27 12 11 554.0000000 550.99091 0.54% 9.9 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 14 Explored 137 nodes (1391 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 108 rows, 1275 columns and 19314 nonzeros Presolve time: 0.02s Presolved: 108 rows, 1275 columns, 19314 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.482936e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.29362 0 51 1672.00000 548.29362 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.29362 2.44% - 0s 0 0 549.49037 0 59 562.00000 549.49037 2.23% - 0s 0 0 549.49037 0 51 562.00000 549.49037 2.23% - 0s 0 0 549.49037 0 59 562.00000 549.49037 2.23% - 0s 0 0 549.60312 0 53 562.00000 549.60312 2.21% - 0s 0 0 549.60312 0 57 562.00000 549.60312 2.21% - 0s 0 0 549.60984 0 61 562.00000 549.60984 2.20% - 0s 0 0 549.60984 0 65 562.00000 549.60984 2.20% - 0s 0 0 549.63155 0 58 562.00000 549.63155 2.20% - 0s 0 0 549.63155 0 62 562.00000 549.63155 2.20% - 0s 0 0 549.64307 0 68 562.00000 549.64307 2.20% - 0s 0 0 549.69000 0 71 562.00000 549.69000 2.19% - 0s 0 0 549.71330 0 68 562.00000 549.71330 2.19% - 0s 0 0 549.73321 0 64 562.00000 549.73321 2.18% - 0s 0 0 549.73791 0 67 562.00000 549.73791 2.18% - 0s 0 0 549.76005 0 67 562.00000 549.76005 2.18% - 0s 0 0 549.82344 0 72 562.00000 549.82344 2.17% - 0s 0 0 549.83560 0 74 562.00000 549.83560 2.16% - 0s 0 0 549.86457 0 67 562.00000 549.86457 2.16% - 0s 0 0 549.86457 0 71 562.00000 549.86457 2.16% - 0s 0 0 549.87893 0 68 562.00000 549.87893 2.16% - 0s 0 0 549.88016 0 72 562.00000 549.88016 2.16% - 0s H 0 0 555.0000000 549.88016 0.92% - 0s 0 2 549.90808 0 68 555.00000 549.90808 0.92% - 0s * 27 13 10 554.0000000 551.11111 0.52% 10.5 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 22 Mod-K: 1 Explored 82 nodes (1040 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 17), (10, 35), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (17, 51), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 109 rows, 1275 columns and 19875 nonzeros Presolve time: 0.02s Presolved: 109 rows, 1275 columns, 19875 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483750e+02, 106 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.37500 0 49 1672.00000 548.37500 67.2% - 0s Another try with MIP start H 0 0 592.0000000 548.37500 7.37% - 0s 0 0 549.86283 0 58 592.00000 549.86283 7.12% - 0s 0 0 549.89247 0 61 592.00000 549.89247 7.11% - 0s 0 0 549.93972 0 60 592.00000 549.93972 7.10% - 0s 0 0 549.93972 0 64 592.00000 549.93972 7.10% - 0s 0 0 549.96343 0 64 592.00000 549.96343 7.10% - 0s 0 0 549.96892 0 69 592.00000 549.96892 7.10% - 0s 0 0 550.01330 0 71 592.00000 550.01330 7.09% - 0s 0 0 550.01330 0 72 592.00000 550.01330 7.09% - 0s 0 0 550.05155 0 63 592.00000 550.05155 7.09% - 0s 0 0 550.05155 0 67 592.00000 550.05155 7.09% - 0s 0 0 550.10753 0 64 592.00000 550.10753 7.08% - 0s 0 0 550.10753 0 68 592.00000 550.10753 7.08% - 0s 0 0 550.11162 0 64 592.00000 550.11162 7.08% - 0s H 0 0 574.0000000 550.11162 4.16% - 0s H 0 0 559.0000000 550.11162 1.59% - 0s 0 0 550.11523 0 75 559.00000 550.11523 1.59% - 0s 0 0 550.11523 0 49 559.00000 550.11523 1.59% - 0s 0 0 550.11523 0 63 559.00000 550.11523 1.59% - 0s 0 0 550.15359 0 68 559.00000 550.15359 1.58% - 0s 0 0 550.17929 0 68 559.00000 550.17929 1.58% - 0s 0 0 550.17929 0 72 559.00000 550.17929 1.58% - 0s 0 0 550.17929 0 71 559.00000 550.17929 1.58% - 0s 0 2 550.21505 0 70 559.00000 550.21505 1.57% - 0s * 18 14 13 555.0000000 550.96369 0.73% 9.3 0s * 97 9 12 554.0000000 552.33333 0.30% 7.9 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 8 Explored 111 nodes (1185 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.540000000000e+02, best bound 5.540000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (10, 31), (10, 39), (11, 40), (11, 50), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 22), (17, 51), (20, 41), (20, 43), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (39, 50), (41, 42), (43, 45)] Optimize a model with 110 rows, 1275 columns and 20470 nonzeros Presolve time: 0.02s Presolved: 110 rows, 1275 columns, 20470 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483750e+02, 128 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.37500 0 49 1672.00000 548.37500 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.37500 2.42% - 0s 0 0 549.86283 0 56 562.00000 549.86283 2.16% - 0s 0 0 549.86283 0 49 562.00000 549.86283 2.16% - 0s 0 0 549.87956 0 60 562.00000 549.87956 2.16% - 0s 0 0 549.99569 0 62 562.00000 549.99569 2.14% - 0s 0 0 549.99569 0 60 562.00000 549.99569 2.14% - 0s 0 0 549.99569 0 64 562.00000 549.99569 2.14% - 0s 0 0 550.07761 0 62 562.00000 550.07761 2.12% - 0s 0 0 550.07761 0 64 562.00000 550.07761 2.12% - 0s 0 0 550.07761 0 67 562.00000 550.07761 2.12% - 0s 0 0 550.07761 0 66 562.00000 550.07761 2.12% - 0s H 0 0 557.0000000 550.07761 1.24% - 0s 0 2 550.11330 0 66 557.00000 550.11330 1.24% - 0s * 39 26 10 556.0000000 551.38462 0.83% 8.5 0s * 139 34 11 555.0000000 551.83025 0.57% 8.1 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 6 Explored 237 nodes (2056 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(10, 31), (10, 50), (11, 40), (11, 50), (12, 39), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (17, 30), (17, 39), (20, 41), (20, 43), (22, 30), (22, 51), (31, 35), (34, 40), (34, 46), (35, 51), (41, 42), (43, 45)] adding cut for [(3, 33), (3, 21), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (25, 44), (21, 36), (23, 29), (24, 49), (24, 25), (4, 37), (4, 23), (29, 32)] Optimize a model with 112 rows, 1275 columns and 20843 nonzeros Presolve time: 0.02s Presolved: 112 rows, 1275 columns, 20843 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483750e+02, 126 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.37500 0 49 1672.00000 548.37500 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.37500 1.90% - 0s 0 0 549.86283 0 56 559.00000 549.86283 1.63% - 0s 0 0 549.86283 0 49 559.00000 549.86283 1.63% - 0s 0 0 549.87956 0 58 559.00000 549.87956 1.63% - 0s 0 0 550.00846 0 61 559.00000 550.00846 1.61% - 0s 0 0 550.00846 0 63 559.00000 550.00846 1.61% - 0s 0 0 550.01519 0 64 559.00000 550.01519 1.61% - 0s H 0 0 556.0000000 550.01519 1.08% - 0s 0 2 550.08389 0 64 556.00000 550.08389 1.06% - 0s H 27 15 555.0000000 551.10526 0.70% 7.8 0s Cutting planes: Gomory: 3 MIR: 3 Zero half: 7 Explored 177 nodes (1629 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(35, 51), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (10, 39), (10, 31), (12, 39), (17, 51), (17, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 43), (11, 40), (11, 50), (15, 26), (16, 38), (16, 46), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 114 rows, 1275 columns and 21116 nonzeros Presolve time: 0.02s Presolved: 114 rows, 1275 columns, 21116 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483846e+02, 120 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.38462 0 49 1672.00000 548.38462 67.2% - 0s Another try with MIP start H 0 0 571.0000000 548.38462 3.96% - 0s 0 0 549.86283 0 55 571.00000 549.86283 3.70% - 0s 0 0 549.86283 0 49 571.00000 549.86283 3.70% - 0s 0 0 549.86283 0 55 571.00000 549.86283 3.70% - 0s 0 0 549.92167 0 59 571.00000 549.92167 3.69% - 0s 0 0 549.92186 0 63 571.00000 549.92186 3.69% - 0s 0 0 550.02204 0 69 571.00000 550.02204 3.67% - 0s 0 0 550.04775 0 67 571.00000 550.04775 3.67% - 0s 0 0 550.05124 0 72 571.00000 550.05124 3.67% - 0s 0 0 550.05124 0 73 571.00000 550.05124 3.67% - 0s H 0 0 563.0000000 550.05124 2.30% - 0s H 0 0 559.0000000 550.05124 1.60% - 0s 0 2 550.05426 0 73 559.00000 550.05426 1.60% - 0s * 13 13 9 556.0000000 551.12500 0.88% 11.9 0s * 89 30 10 555.0000000 552.00000 0.54% 9.0 0s Cutting planes: Gomory: 1 MIR: 4 Zero half: 10 Explored 223 nodes (1843 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(35, 51), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 31), (12, 39), (17, 51), (17, 22), (21, 36), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 43), (5, 19), (41, 42), (14, 42), (14, 26), (15, 26), (20, 41), (20, 43)] Optimize a model with 116 rows, 1275 columns and 21342 nonzeros Presolve time: 0.02s Presolved: 116 rows, 1275 columns, 21342 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483846e+02, 118 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.38462 0 49 1672.00000 548.38462 67.2% - 0s Another try with MIP start H 0 0 608.0000000 548.38462 9.81% - 0s 0 0 550.02734 0 62 608.00000 550.02734 9.53% - 0s 0 0 550.09091 0 60 608.00000 550.09091 9.52% - 0s 0 0 550.22624 0 61 608.00000 550.22624 9.50% - 0s 0 0 550.23091 0 63 608.00000 550.23091 9.50% - 0s 0 0 550.23091 0 67 608.00000 550.23091 9.50% - 0s 0 0 550.28477 0 69 608.00000 550.28477 9.49% - 0s 0 0 550.28477 0 73 608.00000 550.28477 9.49% - 0s 0 0 550.29001 0 70 608.00000 550.29001 9.49% - 0s 0 0 550.29001 0 74 608.00000 550.29001 9.49% - 0s H 0 0 602.0000000 550.29001 8.59% - 0s H 0 0 590.0000000 550.29001 6.73% - 0s H 0 0 577.0000000 550.29001 4.63% - 0s H 0 0 556.0000000 550.29001 1.03% - 0s 0 0 550.29001 0 49 556.00000 550.29001 1.03% - 0s 0 0 550.29001 0 67 556.00000 550.29001 1.03% - 0s 0 0 550.29066 0 72 556.00000 550.29066 1.03% - 0s 0 0 550.35262 0 64 556.00000 550.35262 1.02% - 0s 0 0 550.38605 0 67 556.00000 550.38605 1.01% - 0s 0 0 550.39049 0 69 556.00000 550.39049 1.01% - 0s 0 0 550.39187 0 65 556.00000 550.39187 1.01% - 0s 0 0 550.39674 0 69 556.00000 550.39674 1.01% - 0s 0 2 550.42433 0 69 556.00000 550.42433 1.00% - 0s * 45 22 9 555.0000000 551.84211 0.57% 8.8 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 14 Mod-K: 1 Explored 143 nodes (1438 simplex iterations) in 0.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 19), (9, 23), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 117 rows, 1275 columns and 21903 nonzeros Presolve time: 0.02s Presolved: 117 rows, 1275 columns, 21903 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483846e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.38462 0 49 1672.00000 548.38462 67.2% - 0s Another try with MIP start H 0 0 565.0000000 548.38462 2.94% - 0s 0 0 550.02734 0 62 565.00000 550.02734 2.65% - 0s 0 0 550.02734 0 49 565.00000 550.02734 2.65% - 0s 0 0 550.02818 0 64 565.00000 550.02818 2.65% - 0s 0 0 550.12113 0 66 565.00000 550.12113 2.63% - 0s 0 0 550.12398 0 69 565.00000 550.12398 2.63% - 0s 0 0 550.15028 0 70 565.00000 550.15028 2.63% - 0s 0 0 550.15122 0 71 565.00000 550.15122 2.63% - 0s 0 0 550.19036 0 71 565.00000 550.19036 2.62% - 0s 0 0 550.19661 0 76 565.00000 550.19661 2.62% - 0s 0 0 550.22453 0 73 565.00000 550.22453 2.62% - 0s 0 0 550.23582 0 71 565.00000 550.23582 2.61% - 0s 0 0 550.23848 0 76 565.00000 550.23848 2.61% - 0s 0 0 550.23848 0 76 565.00000 550.23848 2.61% - 0s H 0 0 563.0000000 550.23848 2.27% - 0s H 0 0 561.0000000 550.23848 1.92% - 0s 0 2 550.25934 0 76 561.00000 550.25934 1.91% - 0s * 15 15 12 556.0000000 550.75657 0.94% 13.7 0s * 102 24 10 555.0000000 552.14118 0.52% 8.7 0s Cutting planes: Gomory: 3 MIR: 4 Zero half: 15 Explored 186 nodes (1779 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (38, 45), (39, 50), (10, 50), (10, 31), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (6, 39)] adding cut for [(41, 43), (20, 42), (20, 43), (14, 41), (14, 42)] Optimize a model with 120 rows, 1275 columns and 22140 nonzeros Presolve time: 0.02s Presolved: 120 rows, 1275 columns, 22140 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483846e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.38462 0 49 1672.00000 548.38462 67.2% - 0s Another try with MIP start H 0 0 608.0000000 548.38462 9.81% - 0s 0 0 550.02734 0 62 608.00000 550.02734 9.53% - 0s 0 0 550.09091 0 60 608.00000 550.09091 9.52% - 0s 0 0 550.22624 0 61 608.00000 550.22624 9.50% - 0s 0 0 550.23091 0 63 608.00000 550.23091 9.50% - 0s 0 0 550.23091 0 65 608.00000 550.23091 9.50% - 0s 0 0 550.23174 0 66 608.00000 550.23174 9.50% - 0s H 0 0 589.0000000 550.23174 6.58% - 0s H 0 0 580.0000000 550.23174 5.13% - 0s 0 0 550.23174 0 49 580.00000 550.23174 5.13% - 0s 0 0 550.23174 0 58 580.00000 550.23174 5.13% - 0s 0 0 550.23174 0 66 580.00000 550.23174 5.13% - 0s 0 0 550.24571 0 73 580.00000 550.24571 5.13% - 0s 0 0 550.32282 0 64 580.00000 550.32282 5.12% - 0s 0 0 550.32282 0 68 580.00000 550.32282 5.12% - 0s 0 0 550.35592 0 69 580.00000 550.35592 5.11% - 0s 0 0 550.35592 0 73 580.00000 550.35592 5.11% - 0s 0 0 550.38139 0 65 580.00000 550.38139 5.11% - 0s 0 0 550.38258 0 75 580.00000 550.38258 5.11% - 0s 0 0 550.38258 0 74 580.00000 550.38258 5.11% - 0s H 0 0 571.0000000 550.38258 3.61% - 0s H 0 0 560.0000000 550.38258 1.72% - 0s H 0 0 556.0000000 550.38258 1.01% - 0s 0 2 550.41442 0 74 556.00000 550.41442 1.00% - 0s * 298 0 9 555.0000000 555.00000 0.0% 7.8 0s Cutting planes: MIR: 3 Zero half: 12 Explored 299 nodes (2705 simplex iterations) in 0.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.550000000000e+02, best bound 5.550000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 18), (41, 43), (43, 45), (12, 39), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (10, 39), (10, 50)] adding cut for [(2, 33), (2, 23), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (25, 44), (21, 36), (21, 23), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] adding cut for [(3, 17), (3, 30), (17, 51), (22, 35), (22, 30), (31, 51), (31, 35)] Optimize a model with 123 rows, 1275 columns and 22434 nonzeros Presolve time: 0.02s Presolved: 123 rows, 1275 columns, 22434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483846e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.38462 0 49 1672.00000 548.38462 67.2% - 0s Another try with MIP start H 0 0 565.0000000 548.38462 2.94% - 0s 0 0 550.02734 0 62 565.00000 550.02734 2.65% - 0s 0 0 550.02734 0 49 565.00000 550.02734 2.65% - 0s 0 0 550.02818 0 64 565.00000 550.02818 2.65% - 0s 0 0 550.12113 0 66 565.00000 550.12113 2.63% - 0s 0 0 550.12398 0 69 565.00000 550.12398 2.63% - 0s 0 0 550.15028 0 70 565.00000 550.15028 2.63% - 0s 0 0 550.15028 0 72 565.00000 550.15028 2.63% - 0s 0 0 550.19036 0 71 565.00000 550.19036 2.62% - 0s 0 0 550.19261 0 77 565.00000 550.19261 2.62% - 0s 0 0 550.19996 0 72 565.00000 550.19996 2.62% - 0s 0 0 550.22368 0 75 565.00000 550.22368 2.62% - 0s H 0 0 563.0000000 550.22368 2.27% - 0s 0 0 550.24529 0 74 563.00000 550.24529 2.27% - 0s 0 0 550.24682 0 74 563.00000 550.24682 2.27% - 0s 0 0 550.25592 0 72 563.00000 550.25592 2.26% - 0s 0 0 550.25592 0 76 563.00000 550.25592 2.26% - 0s 0 0 550.25592 0 76 563.00000 550.25592 2.26% - 0s H 0 0 561.0000000 550.25592 1.92% - 0s 0 2 550.25835 0 76 561.00000 550.25835 1.91% - 0s * 25 20 18 557.0000000 550.70588 1.13% 9.4 0s H 112 37 556.0000000 552.14286 0.69% 8.6 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 399 nodes (3231 simplex iterations) in 0.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(6, 50), (10, 39), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 30), (17, 51), (18, 38), (18, 45), (20, 41), (20, 43), (22, 30), (22, 35), (31, 35), (34, 40), (34, 46), (39, 50), (41, 42), (43, 45)] adding cut for [(2, 23), (3, 12), (3, 21), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (36, 37), (27, 32), (29, 32)] Optimize a model with 125 rows, 1275 columns and 22800 nonzeros Presolve time: 0.02s Presolved: 125 rows, 1275 columns, 22800 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.39234 2.25% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 50 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.09433 0 61 561.00000 550.09433 1.94% - 0s 0 0 550.22624 0 61 561.00000 550.22624 1.92% - 0s 0 0 550.23091 0 63 561.00000 550.23091 1.92% - 0s 0 0 550.23091 0 67 561.00000 550.23091 1.92% - 0s 0 0 550.29491 0 66 561.00000 550.29491 1.91% - 0s 0 0 550.29802 0 72 561.00000 550.29802 1.91% - 0s 0 0 550.30889 0 69 561.00000 550.30889 1.91% - 0s H 0 0 556.0000000 550.30889 1.02% - 0s 0 0 550.31682 0 68 556.00000 550.31682 1.02% - 0s 0 2 550.62918 0 68 556.00000 550.62918 0.97% - 0s Cutting planes: Gomory: 9 MIR: 8 Zero half: 18 Explored 322 nodes (2871 simplex iterations) in 0.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (9, 23), (9, 27), (11, 31), (11, 40), (14, 42), (16, 38), (16, 46), (17, 22), (17, 51), (18, 38), (18, 45), (20, 41), (20, 43), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 126 rows, 1275 columns and 23265 nonzeros Presolve time: 0.02s Presolved: 126 rows, 1275 columns, 23265 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.39234 2.25% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 50 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.10673 0 62 561.00000 550.10673 1.94% - 0s 0 0 550.13209 0 64 561.00000 550.13209 1.94% - 0s 0 0 550.22755 0 60 561.00000 550.22755 1.92% - 0s 0 0 550.23091 0 65 561.00000 550.23091 1.92% - 0s 0 0 550.24464 0 67 561.00000 550.24464 1.92% - 0s 0 0 550.24866 0 74 561.00000 550.24866 1.92% - 0s 0 0 550.32136 0 62 561.00000 550.32136 1.90% - 0s 0 0 550.32136 0 66 561.00000 550.32136 1.90% - 0s 0 0 550.33737 0 65 561.00000 550.33737 1.90% - 0s 0 0 550.33996 0 71 561.00000 550.33996 1.90% - 0s 0 0 550.34440 0 75 561.00000 550.34440 1.90% - 0s 0 2 550.34733 0 75 561.00000 550.34733 1.90% - 0s * 28 24 18 559.0000000 551.52941 1.34% 8.9 0s * 32 21 19 558.0000000 551.52941 1.16% 8.2 0s * 104 43 12 556.0000000 551.78947 0.76% 10.1 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 14 Explored 376 nodes (3263 simplex iterations) in 0.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (7, 15), (8, 44), (8, 24), (9, 49), (9, 27), (15, 26), (25, 44), (25, 26), (21, 23), (21, 36), (24, 49), (36, 37), (27, 32), (29, 32)] adding cut for [(35, 51), (3, 17), (3, 30), (10, 39), (10, 31), (17, 39), (22, 51), (22, 30), (31, 35)] Optimize a model with 128 rows, 1275 columns and 23454 nonzeros Presolve time: 0.02s Presolved: 128 rows, 1275 columns, 23454 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.39234 1.90% - 0s 0 0 550.02734 0 62 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 50 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 62 559.00000 550.02734 1.61% - 0s 0 0 550.11637 0 65 559.00000 550.11637 1.59% - 0s 0 0 550.14295 0 64 559.00000 550.14295 1.58% - 0s 0 0 550.22624 0 62 559.00000 550.22624 1.57% - 0s 0 0 550.29327 0 65 559.00000 550.29327 1.56% - 0s 0 0 550.29802 0 72 559.00000 550.29802 1.56% - 0s 0 0 550.33087 0 71 559.00000 550.33087 1.55% - 0s 0 0 550.33474 0 70 559.00000 550.33474 1.55% - 0s 0 0 550.33834 0 72 559.00000 550.33834 1.55% - 0s 0 0 550.34149 0 80 559.00000 550.34149 1.55% - 0s 0 2 550.36861 0 80 559.00000 550.36861 1.54% - 0s * 41 29 13 557.0000000 551.50000 0.99% 9.8 0s * 69 32 7 556.0000000 551.94872 0.73% 10.0 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Explored 316 nodes (2739 simplex iterations) in 0.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (5, 18), (5, 19), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (16, 38), (16, 46), (17, 22), (17, 51), (20, 41), (20, 42), (21, 36), (22, 30), (23, 29), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 43), (43, 45)] Optimize a model with 129 rows, 1275 columns and 24015 nonzeros Presolve time: 0.02s Presolved: 129 rows, 1275 columns, 24015 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 138 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 565.0000000 548.39234 2.94% - 0s 0 0 550.02734 0 62 565.00000 550.02734 2.65% - 0s 0 0 550.02734 0 50 565.00000 550.02734 2.65% - 0s 0 0 550.02734 0 62 565.00000 550.02734 2.65% - 0s 0 0 550.16667 0 58 565.00000 550.16667 2.63% - 0s 0 0 550.24669 0 59 565.00000 550.24669 2.61% - 0s 0 0 550.24719 0 64 565.00000 550.24719 2.61% - 0s 0 0 550.24719 0 61 565.00000 550.24719 2.61% - 0s 0 0 550.24719 0 65 565.00000 550.24719 2.61% - 0s 0 0 550.24792 0 64 565.00000 550.24792 2.61% - 0s 0 0 550.25122 0 69 565.00000 550.25122 2.61% - 0s H 0 0 559.0000000 550.25122 1.57% - 0s 0 2 550.25246 0 69 559.00000 550.25246 1.56% - 0s * 14 10 11 556.0000000 551.54502 0.80% 11.6 0s Cutting planes: MIR: 5 Zero half: 7 Explored 179 nodes (1813 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 43), (9, 23), (9, 27), (11, 40), (11, 50), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42)] Optimize a model with 130 rows, 1275 columns and 24511 nonzeros Presolve time: 0.02s Presolved: 130 rows, 1275 columns, 24511 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 130 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 557.0000000 548.39234 1.55% - 0s 0 0 550.02734 0 58 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 50 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 62 557.00000 550.02734 1.25% - 0s 0 0 550.17077 0 61 557.00000 550.17077 1.23% - 0s 0 0 550.25446 0 63 557.00000 550.25446 1.21% - 0s 0 0 550.25703 0 67 557.00000 550.25703 1.21% - 0s 0 0 550.27393 0 69 557.00000 550.27393 1.21% - 0s 0 0 550.27462 0 71 557.00000 550.27462 1.21% - 0s 0 0 550.31599 0 68 557.00000 550.31599 1.20% - 0s 0 0 550.31981 0 72 557.00000 550.31981 1.20% - 0s 0 0 550.32898 0 65 557.00000 550.32898 1.20% - 0s 0 0 550.36589 0 70 557.00000 550.36589 1.19% - 0s 0 0 550.37230 0 72 557.00000 550.37230 1.19% - 0s 0 0 550.37404 0 77 557.00000 550.37404 1.19% - 0s 0 0 550.37404 0 77 557.00000 550.37404 1.19% - 0s 0 2 550.39955 0 77 557.00000 550.39955 1.18% - 0s * 39 12 8 556.0000000 551.82592 0.75% 9.3 0s Cutting planes: MIR: 5 Zero half: 10 Explored 222 nodes (2050 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (9, 27), (9, 49), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] adding cut for [(6, 39), (6, 50), (10, 50), (10, 51), (17, 39), (17, 51)] Optimize a model with 132 rows, 1275 columns and 24877 nonzeros Presolve time: 0.02s Presolved: 132 rows, 1275 columns, 24877 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 134 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.39234 2.25% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 50 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.16667 0 56 561.00000 550.16667 1.93% - 0s 0 0 550.24669 0 59 561.00000 550.24669 1.92% - 0s 0 0 550.24719 0 62 561.00000 550.24719 1.92% - 0s 0 0 550.24719 0 67 561.00000 550.24719 1.92% - 0s 0 0 550.24719 0 67 561.00000 550.24719 1.92% - 0s 0 2 550.26829 0 67 561.00000 550.26829 1.91% - 0s * 31 20 13 557.0000000 551.50255 0.99% 9.3 0s * 32 16 12 556.0000000 551.50255 0.81% 9.2 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 228 nodes (2101 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 43), (8, 27), (8, 44), (9, 27), (9, 32), (11, 40), (11, 50), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 36), (22, 30), (22, 35), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37), (38, 45), (41, 43)] Optimize a model with 133 rows, 1275 columns and 25472 nonzeros Presolve time: 0.02s Presolved: 133 rows, 1275 columns, 25472 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.39234 2.25% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 50 561.00000 550.02734 1.96% - 0s 0 0 550.02734 0 62 561.00000 550.02734 1.96% - 0s 0 0 550.16667 0 56 561.00000 550.16667 1.93% - 0s 0 0 550.16667 0 61 561.00000 550.16667 1.93% - 0s 0 0 550.24669 0 59 561.00000 550.24669 1.92% - 0s 0 0 550.24719 0 64 561.00000 550.24719 1.92% - 0s 0 0 550.24719 0 61 561.00000 550.24719 1.92% - 0s 0 0 550.24719 0 65 561.00000 550.24719 1.92% - 0s 0 0 550.24792 0 64 561.00000 550.24792 1.92% - 0s 0 0 550.25122 0 69 561.00000 550.25122 1.92% - 0s 0 0 550.25122 0 69 561.00000 550.25122 1.92% - 0s H 0 0 560.0000000 550.25122 1.74% - 0s 0 2 550.25246 0 69 560.00000 550.25246 1.74% - 0s * 35 19 13 556.0000000 551.54502 0.80% 10.9 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 15 Explored 215 nodes (2207 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (38, 45), (6, 50), (41, 42), (10, 50), (10, 51), (11, 40), (11, 31), (15, 26), (16, 38), (16, 46), (43, 45), (20, 41), (20, 43), (14, 26), (14, 42), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (12, 39), (17, 39), (17, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 135 rows, 1275 columns and 25753 nonzeros Presolve time: 0.02s Presolved: 135 rows, 1275 columns, 25753 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 557.0000000 548.39234 1.55% - 0s 0 0 550.02734 0 62 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 50 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 58 557.00000 550.02734 1.25% - 0s 0 0 550.16667 0 60 557.00000 550.16667 1.23% - 0s 0 0 550.24669 0 66 557.00000 550.24669 1.21% - 0s 0 0 550.28351 0 61 557.00000 550.28351 1.21% - 0s 0 0 550.28351 0 66 557.00000 550.28351 1.21% - 0s 0 0 550.29462 0 68 557.00000 550.29462 1.20% - 0s 0 0 550.34341 0 63 557.00000 550.34341 1.20% - 0s 0 0 550.34345 0 67 557.00000 550.34345 1.20% - 0s 0 0 550.34809 0 71 557.00000 550.34809 1.19% - 0s 0 2 550.39970 0 71 557.00000 550.39970 1.18% - 0s * 14 12 12 556.0000000 551.38028 0.83% 10.4 0s Cutting planes: MIR: 5 Zero half: 10 Explored 167 nodes (1805 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 18), (5, 19), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (18, 45), (20, 41), (20, 42)] Optimize a model with 137 rows, 1275 columns and 25998 nonzeros Presolve time: 0.02s Presolved: 137 rows, 1275 columns, 25998 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.39234 2.42% - 0s 0 0 550.02734 0 62 562.00000 550.02734 2.13% - 0s 0 0 550.02734 0 50 562.00000 550.02734 2.13% - 0s 0 0 550.02734 0 62 562.00000 550.02734 2.13% - 0s 0 0 550.16667 0 56 562.00000 550.16667 2.11% - 0s 0 0 550.24669 0 59 562.00000 550.24669 2.09% - 0s 0 0 550.24719 0 64 562.00000 550.24719 2.09% - 0s 0 0 550.24719 0 61 562.00000 550.24719 2.09% - 0s 0 0 550.24719 0 65 562.00000 550.24719 2.09% - 0s 0 0 550.24792 0 64 562.00000 550.24792 2.09% - 0s 0 0 550.25122 0 69 562.00000 550.25122 2.09% - 0s 0 0 550.25122 0 69 562.00000 550.25122 2.09% - 0s 0 2 550.25246 0 69 562.00000 550.25246 2.09% - 0s * 36 21 30 560.0000000 551.35714 1.54% 8.2 0s * 54 31 17 559.0000000 551.54502 1.33% 8.9 0s * 85 36 17 558.0000000 551.74150 1.12% 8.2 0s * 141 41 8 556.0000000 552.28571 0.67% 8.5 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 298 nodes (2588 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (5, 18), (5, 43), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (23, 29), (24, 44), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42)] Optimize a model with 138 rows, 1275 columns and 26664 nonzeros Presolve time: 0.02s Presolved: 138 rows, 1275 columns, 26664 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.39234 2.59% - 0s 0 0 550.02734 0 62 563.00000 550.02734 2.30% - 0s 0 0 550.02734 0 50 563.00000 550.02734 2.30% - 0s 0 0 550.02734 0 62 563.00000 550.02734 2.30% - 0s 0 0 550.16667 0 56 563.00000 550.16667 2.28% - 0s 0 0 550.24669 0 59 563.00000 550.24669 2.27% - 0s 0 0 550.24719 0 64 563.00000 550.24719 2.27% - 0s 0 0 550.24719 0 61 563.00000 550.24719 2.27% - 0s 0 0 550.24719 0 64 563.00000 550.24719 2.27% - 0s H 0 0 562.0000000 550.24719 2.09% - 0s 0 0 550.24719 0 65 562.00000 550.24719 2.09% - 0s 0 0 550.24719 0 65 562.00000 550.24719 2.09% - 0s H 0 0 561.0000000 550.24719 1.92% - 0s 0 2 550.26829 0 64 561.00000 550.26829 1.91% - 0s * 18 17 14 559.0000000 551.34764 1.37% 10.7 0s H 27 16 558.0000000 551.50255 1.16% 10.0 0s H 110 40 557.0000000 552.00000 0.90% 9.0 0s * 221 37 10 556.0000000 553.00000 0.54% 8.7 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 19 Explored 319 nodes (2866 simplex iterations) in 0.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.560000000000e+02, best bound 5.560000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 19), (9, 27), (11, 31), (11, 40), (14, 19), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 139 rows, 1275 columns and 27042 nonzeros Presolve time: 0.02s Presolved: 139 rows, 1275 columns, 27042 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start 0 0 550.02734 0 62 1672.00000 550.02734 67.1% - 0s 0 0 550.16667 0 56 1672.00000 550.16667 67.1% - 0s 0 0 550.24669 0 59 1672.00000 550.24669 67.1% - 0s 0 0 550.24669 0 63 1672.00000 550.24669 67.1% - 0s 0 0 550.24669 0 60 1672.00000 550.24669 67.1% - 0s H 0 0 665.0000000 550.24669 17.3% - 0s H 0 0 581.0000000 550.24669 5.29% - 0s 0 0 550.24669 0 66 581.00000 550.24669 5.29% - 0s 0 0 550.24669 0 50 581.00000 550.24669 5.29% - 0s 0 0 550.24669 0 61 581.00000 550.24669 5.29% - 0s 0 0 550.24669 0 63 581.00000 550.24669 5.29% - 0s 0 0 550.24792 0 64 581.00000 550.24792 5.29% - 0s 0 0 550.25122 0 69 581.00000 550.25122 5.29% - 0s 0 0 550.30684 0 64 581.00000 550.30684 5.28% - 0s 0 0 550.30684 0 71 581.00000 550.30684 5.28% - 0s 0 0 550.30894 0 69 581.00000 550.30894 5.28% - 0s 0 0 550.31025 0 72 581.00000 550.31025 5.28% - 0s H 0 0 579.0000000 550.31025 4.96% - 0s H 0 0 568.0000000 550.31025 3.11% - 0s 0 2 550.35382 0 72 568.00000 550.35382 3.11% - 0s * 29 27 25 561.0000000 550.76190 1.82% 9.4 0s * 52 36 14 560.0000000 551.67500 1.49% 9.8 0s * 97 35 16 557.0000000 552.22222 0.86% 8.8 0s Cutting planes: MIR: 5 Zero half: 17 Explored 557 nodes (4421 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(36, 37), (6, 50), (9, 27), (11, 40), (11, 50), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 40)] adding cut for [(34, 46), (5, 18), (5, 19), (41, 43), (43, 45), (45, 46), (15, 26), (16, 34), (16, 38), (18, 38), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 141 rows, 1275 columns and 27267 nonzeros Presolve time: 0.02s Presolved: 141 rows, 1275 columns, 27267 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start 0 0 550.02734 0 62 1672.00000 550.02734 67.1% - 0s 0 0 550.16667 0 56 1672.00000 550.16667 67.1% - 0s 0 0 550.24669 0 59 1672.00000 550.24669 67.1% - 0s 0 0 550.24669 0 63 1672.00000 550.24669 67.1% - 0s 0 0 550.24823 0 66 1672.00000 550.24823 67.1% - 0s H 0 0 661.0000000 550.24823 16.8% - 0s H 0 0 591.0000000 550.24823 6.90% - 0s 0 0 550.25672 0 69 591.00000 550.25672 6.89% - 0s 0 0 550.30758 0 67 591.00000 550.30758 6.89% - 0s 0 0 550.30758 0 71 591.00000 550.30758 6.89% - 0s 0 0 550.31982 0 64 591.00000 550.31982 6.88% - 0s 0 0 550.31982 0 68 591.00000 550.31982 6.88% - 0s 0 0 550.32295 0 68 591.00000 550.32295 6.88% - 0s H 0 0 579.0000000 550.32295 4.95% - 0s H 0 0 566.0000000 550.32295 2.77% - 0s H 0 0 562.0000000 550.32295 2.08% - 0s 0 0 550.32295 0 50 562.00000 550.32295 2.08% - 0s 0 0 550.32295 0 65 562.00000 550.32295 2.08% - 0s 0 0 550.33088 0 63 562.00000 550.33088 2.08% - 0s 0 0 550.33405 0 66 562.00000 550.33405 2.08% - 0s 0 0 550.34008 0 73 562.00000 550.34008 2.07% - 0s 0 2 550.36344 0 73 562.00000 550.36344 2.07% - 0s * 25 23 20 560.0000000 551.48126 1.52% 8.4 0s * 48 32 16 558.0000000 551.53555 1.16% 7.8 0s * 63 31 10 557.0000000 551.76471 0.94% 8.7 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Explored 508 nodes (4353 simplex iterations) in 1.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (12, 17), (17, 51), (21, 36), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 51), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 39), (41, 43), (10, 39), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (20, 41), (20, 42), (14, 19), (14, 42)] Optimize a model with 143 rows, 1275 columns and 27540 nonzeros Presolve time: 0.02s Presolved: 143 rows, 1275 columns, 27540 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 557.0000000 548.39234 1.55% - 0s 0 0 550.02734 0 62 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 50 557.00000 550.02734 1.25% - 0s 0 0 550.02734 0 62 557.00000 550.02734 1.25% - 0s 0 0 550.16667 0 62 557.00000 550.16667 1.23% - 0s 0 0 550.16684 0 63 557.00000 550.16684 1.23% - 0s 0 0 550.17291 0 69 557.00000 550.17291 1.23% - 0s 0 0 550.28550 0 63 557.00000 550.28550 1.21% - 0s 0 0 550.32651 0 69 557.00000 550.32651 1.20% - 0s 0 0 550.34393 0 69 557.00000 550.34393 1.19% - 0s 0 0 550.34819 0 71 557.00000 550.34819 1.19% - 0s 0 0 550.38935 0 67 557.00000 550.38935 1.19% - 0s 0 0 550.38935 0 71 557.00000 550.38935 1.19% - 0s 0 0 550.40296 0 68 557.00000 550.40296 1.18% - 0s 0 0 550.40296 0 72 557.00000 550.40296 1.18% - 0s 0 0 550.40553 0 66 557.00000 550.40553 1.18% - 0s 0 0 550.40709 0 67 557.00000 550.40709 1.18% - 0s 0 2 550.43584 0 66 557.00000 550.43584 1.18% - 0s Cutting planes: MIR: 4 Zero half: 13 Explored 371 nodes (3096 simplex iterations) in 0.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (14, 19), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 144 rows, 1275 columns and 27918 nonzeros Presolve time: 0.02s Presolved: 144 rows, 1275 columns, 27918 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 130 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start 0 0 550.02734 0 62 1672.00000 550.02734 67.1% - 0s 0 0 550.16667 0 56 1672.00000 550.16667 67.1% - 0s 0 0 550.24669 0 59 1672.00000 550.24669 67.1% - 0s 0 0 550.24669 0 63 1672.00000 550.24669 67.1% - 0s 0 0 550.24823 0 66 1672.00000 550.24823 67.1% - 0s H 0 0 746.0000000 550.24823 26.2% - 0s H 0 0 591.0000000 550.24823 6.90% - 0s 0 0 550.25672 0 69 591.00000 550.25672 6.89% - 0s 0 0 550.30758 0 67 591.00000 550.30758 6.89% - 0s 0 0 550.30758 0 71 591.00000 550.30758 6.89% - 0s 0 0 550.31982 0 63 591.00000 550.31982 6.88% - 0s 0 0 550.31982 0 67 591.00000 550.31982 6.88% - 0s 0 0 550.33200 0 66 591.00000 550.33200 6.88% - 0s 0 0 550.33330 0 72 591.00000 550.33330 6.88% - 0s 0 0 550.33494 0 70 591.00000 550.33494 6.88% - 0s 0 0 550.33494 0 74 591.00000 550.33494 6.88% - 0s H 0 0 567.0000000 550.33494 2.94% - 0s H 0 0 562.0000000 550.33494 2.08% - 0s 0 0 550.33494 0 50 562.00000 550.33494 2.08% - 0s 0 0 550.33494 0 60 562.00000 550.33494 2.08% - 0s 0 0 550.33494 0 68 562.00000 550.33494 2.08% - 0s 0 0 550.38780 0 68 562.00000 550.38780 2.07% - 0s 0 0 550.38780 0 72 562.00000 550.38780 2.07% - 0s 0 0 550.39405 0 73 562.00000 550.39405 2.07% - 0s 0 2 550.39523 0 73 562.00000 550.39523 2.06% - 0s * 14 14 10 561.0000000 551.38017 1.71% 14.0 0s * 52 30 19 559.0000000 551.49395 1.34% 10.9 1s * 132 59 12 558.0000000 552.15789 1.05% 9.6 1s * 174 45 16 557.0000000 552.67647 0.78% 9.0 1s Cutting planes: Gomory: 2 MIR: 1 Zero half: 14 Explored 507 nodes (4377 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (38, 45), (6, 50), (41, 42), (10, 35), (10, 50), (11, 40), (11, 31), (15, 26), (16, 38), (16, 46), (43, 45), (20, 41), (20, 43), (14, 26), (14, 42), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (12, 39), (17, 39), (17, 51), (21, 36), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 146 rows, 1275 columns and 28194 nonzeros Presolve time: 0.02s Presolved: 146 rows, 1275 columns, 28194 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 130 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.39234 1.90% - 0s 0 0 550.02734 0 62 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 50 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 62 559.00000 550.02734 1.61% - 0s 0 0 550.16667 0 62 559.00000 550.16667 1.58% - 0s 0 0 550.16816 0 60 559.00000 550.16816 1.58% - 0s 0 0 550.17875 0 69 559.00000 550.17875 1.58% - 0s 0 0 550.28568 0 65 559.00000 550.28568 1.56% - 0s 0 0 550.32651 0 69 559.00000 550.32651 1.55% - 0s 0 0 550.34393 0 69 559.00000 550.34393 1.55% - 0s 0 0 550.35095 0 71 559.00000 550.35095 1.55% - 0s 0 0 550.36168 0 70 559.00000 550.36168 1.55% - 0s 0 0 550.36285 0 74 559.00000 550.36285 1.55% - 0s 0 0 550.36719 0 74 559.00000 550.36719 1.54% - 0s 0 0 550.36719 0 74 559.00000 550.36719 1.54% - 0s 0 2 550.37845 0 74 559.00000 550.37845 1.54% - 0s H 82 32 557.0000000 552.24277 0.85% 9.2 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 17 Explored 484 nodes (4053 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (41, 43), (43, 45)] Optimize a model with 147 rows, 1275 columns and 28519 nonzeros Presolve time: 0.02s Presolved: 147 rows, 1275 columns, 28519 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.483923e+02, 130 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.39234 0 50 1672.00000 548.39234 67.2% - 0s Another try with MIP start H 0 0 572.0000000 548.39234 4.13% - 0s 0 0 550.02734 0 62 572.00000 550.02734 3.84% - 0s 0 0 550.02734 0 50 572.00000 550.02734 3.84% - 0s 0 0 550.02734 0 62 572.00000 550.02734 3.84% - 0s 0 0 550.16667 0 56 572.00000 550.16667 3.82% - 0s 0 0 550.24669 0 59 572.00000 550.24669 3.80% - 0s 0 0 550.24719 0 67 572.00000 550.24719 3.80% - 0s 0 0 550.28351 0 60 572.00000 550.28351 3.80% - 0s 0 0 550.28351 0 64 572.00000 550.28351 3.80% - 0s 0 0 550.28351 0 63 572.00000 550.28351 3.80% - 0s 0 0 550.28351 0 67 572.00000 550.28351 3.80% - 0s 0 0 550.28351 0 67 572.00000 550.28351 3.80% - 0s H 0 0 561.0000000 550.28351 1.91% - 0s 0 2 550.42553 0 67 561.00000 550.42553 1.88% - 0s * 59 31 22 558.0000000 551.54114 1.16% 9.2 0s * 186 46 10 557.0000000 552.48980 0.81% 9.6 0s Cutting planes: Gomory: 2 MIR: 5 Zero half: 12 Explored 574 nodes (4972 simplex iterations) in 0.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (19, 26), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (23, 32), (24, 44), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 148 rows, 1275 columns and 29185 nonzeros Presolve time: 0.02s Presolved: 148 rows, 1275 columns, 29185 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.484091e+02, 132 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.40913 0 50 1672.00000 548.40913 67.2% - 0s Another try with MIP start H 0 0 566.0000000 548.40913 3.11% - 0s 0 0 550.02734 0 62 566.00000 550.02734 2.82% - 0s 0 0 550.02734 0 50 566.00000 550.02734 2.82% - 0s 0 0 550.02734 0 62 566.00000 550.02734 2.82% - 0s 0 0 550.17540 0 62 566.00000 550.17540 2.80% - 0s 0 0 550.17540 0 66 566.00000 550.17540 2.80% - 0s 0 0 550.17558 0 65 566.00000 550.17558 2.80% - 0s 0 0 550.17558 0 69 566.00000 550.17558 2.80% - 0s 0 0 550.26731 0 64 566.00000 550.26731 2.78% - 0s 0 0 550.32171 0 67 566.00000 550.32171 2.77% - 0s 0 0 550.33257 0 67 566.00000 550.33257 2.77% - 0s 0 0 550.33257 0 71 566.00000 550.33257 2.77% - 0s 0 0 550.37389 0 69 566.00000 550.37389 2.76% - 0s 0 0 550.37389 0 73 566.00000 550.37389 2.76% - 0s 0 0 550.38797 0 66 566.00000 550.38797 2.76% - 0s 0 0 550.39071 0 75 566.00000 550.39071 2.76% - 0s 0 0 550.39759 0 71 566.00000 550.39759 2.76% - 0s H 0 0 561.0000000 550.39759 1.89% - 0s 0 0 550.39759 0 75 561.00000 550.39759 1.89% - 0s 0 2 550.81489 0 75 561.00000 550.81489 1.82% - 0s H 43 24 560.0000000 551.46377 1.52% 15.7 1s H 70 34 559.0000000 551.50000 1.34% 14.0 1s * 84 28 32 558.0000000 551.50000 1.16% 13.1 1s H 124 40 557.0000000 552.57143 0.80% 12.1 1s Cutting planes: Gomory: 5 MIR: 14 Zero half: 9 Explored 441 nodes (4281 simplex iterations) in 1.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 14), (5, 18), (9, 23), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 149 rows, 1275 columns and 29650 nonzeros Presolve time: 0.02s Presolved: 149 rows, 1275 columns, 29650 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.484091e+02, 129 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.40913 0 50 1672.00000 548.40913 67.2% - 0s Another try with MIP start 0 0 550.02734 0 62 1672.00000 550.02734 67.1% - 0s 0 0 550.16693 0 65 1672.00000 550.16693 67.1% - 0s 0 0 550.16693 0 69 1672.00000 550.16693 67.1% - 0s 0 0 550.19974 0 62 1672.00000 550.19974 67.1% - 0s H 0 0 675.0000000 550.19974 18.5% - 0s H 0 0 582.0000000 550.19974 5.46% - 0s 0 0 550.29533 0 68 582.00000 550.29533 5.45% - 0s 0 0 550.29533 0 50 582.00000 550.29533 5.45% - 0s 0 0 550.29533 0 64 582.00000 550.29533 5.45% - 0s 0 0 550.32651 0 67 582.00000 550.32651 5.44% - 0s 0 0 550.32651 0 71 582.00000 550.32651 5.44% - 0s 0 0 550.33237 0 61 582.00000 550.33237 5.44% - 0s 0 0 550.33237 0 65 582.00000 550.33237 5.44% - 0s 0 0 550.34059 0 65 582.00000 550.34059 5.44% - 0s 0 0 550.34059 0 69 582.00000 550.34059 5.44% - 0s 0 0 550.34535 0 72 582.00000 550.34535 5.44% - 0s 0 0 550.34713 0 75 582.00000 550.34713 5.44% - 0s H 0 0 570.0000000 550.34713 3.45% - 0s H 0 0 558.0000000 550.34713 1.37% - 0s 0 2 550.34899 0 75 558.00000 550.34899 1.37% - 0s * 18 11 14 557.0000000 551.46423 0.99% 11.4 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 8 Explored 421 nodes (3706 simplex iterations) in 1.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(6, 50), (7, 24), (8, 24), (8, 44), (11, 31), (11, 50), (14, 26), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (20, 41), (20, 42), (25, 44), (31, 40), (34, 40), (34, 46), (38, 45), (41, 43), (43, 45)] Optimize a model with 150 rows, 1275 columns and 29881 nonzeros Presolve time: 0.02s Presolved: 150 rows, 1275 columns, 29881 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.484091e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.40913 0 50 1672.00000 548.40913 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.40913 1.89% - 0s 0 0 550.02734 0 58 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 50 559.00000 550.02734 1.61% - 0s 0 0 550.02734 0 58 559.00000 550.02734 1.61% - 0s 0 0 550.17540 0 62 559.00000 550.17540 1.58% - 0s 0 0 550.17540 0 66 559.00000 550.17540 1.58% - 0s 0 0 550.18195 0 63 559.00000 550.18195 1.58% - 0s 0 0 550.30128 0 65 559.00000 550.30128 1.56% - 0s 0 0 550.32787 0 67 559.00000 550.32787 1.55% - 0s 0 0 550.32787 0 71 559.00000 550.32787 1.55% - 0s 0 0 550.35874 0 67 559.00000 550.35874 1.55% - 0s 0 0 550.36172 0 70 559.00000 550.36172 1.55% - 0s 0 0 550.36483 0 68 559.00000 550.36483 1.54% - 0s 0 0 550.36597 0 73 559.00000 550.36597 1.54% - 0s H 0 0 558.0000000 550.36597 1.37% - 0s 0 2 550.40444 0 73 558.00000 550.40444 1.36% - 0s H 245 53 557.0000000 553.06122 0.71% 8.4 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 16 Explored 526 nodes (4367 simplex iterations) in 0.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 18), (38, 45), (41, 43), (43, 45), (12, 39), (14, 42), (16, 38), (16, 46), (35, 51), (20, 41), (20, 42), (10, 51), (10, 39), (31, 50), (31, 35)] adding cut for [(2, 23), (4, 37), (4, 29), (8, 44), (8, 27), (9, 32), (9, 27), (25, 44), (21, 23), (21, 36), (24, 49), (24, 25), (36, 37), (29, 32)] adding cut for [(17, 22), (3, 17), (3, 30), (22, 30)] Optimize a model with 153 rows, 1275 columns and 30202 nonzeros Presolve time: 0.02s Presolved: 153 rows, 1275 columns, 30202 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.484299e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.42994 0 53 1672.00000 548.42994 67.2% - 0s Another try with MIP start H 0 0 558.0000000 548.42994 1.72% - 0s 0 0 549.55753 0 62 558.00000 549.55753 1.51% - 0s 0 0 549.55753 0 53 558.00000 549.55753 1.51% - 0s 0 0 550.02741 0 63 558.00000 550.02741 1.43% - 0s 0 0 550.16683 0 62 558.00000 550.16683 1.40% - 0s 0 0 550.16683 0 66 558.00000 550.16683 1.40% - 0s 0 0 550.20170 0 66 558.00000 550.20170 1.40% - 0s 0 0 550.28146 0 62 558.00000 550.28146 1.38% - 0s 0 0 550.33468 0 67 558.00000 550.33468 1.37% - 0s 0 0 550.33713 0 71 558.00000 550.33713 1.37% - 0s 0 0 550.35417 0 69 558.00000 550.35417 1.37% - 0s 0 0 550.36757 0 72 558.00000 550.36757 1.37% - 0s 0 0 550.37103 0 74 558.00000 550.37103 1.37% - 0s 0 0 550.37313 0 74 558.00000 550.37313 1.37% - 0s 0 2 550.39059 0 74 558.00000 550.39059 1.36% - 0s * 79 35 13 557.0000000 551.83146 0.93% 9.3 0s Cutting planes: MIR: 4 Zero half: 15 Explored 488 nodes (4189 simplex iterations) in 0.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (31, 51), (36, 37)] adding cut for [(16, 45), (16, 46), (34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 48), (41, 42), (43, 45), (12, 39), (14, 42), (20, 41), (20, 43), (10, 39), (10, 50)] Optimize a model with 155 rows, 1275 columns and 30569 nonzeros Presolve time: 0.02s Presolved: 155 rows, 1275 columns, 30569 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 564.0000000 548.82675 2.69% - 0s 0 0 550.21909 0 64 564.00000 550.21909 2.44% - 0s 0 0 550.21909 0 51 564.00000 550.21909 2.44% - 0s 0 0 550.21909 0 64 564.00000 550.21909 2.44% - 0s 0 0 550.31129 0 61 564.00000 550.31129 2.43% - 0s 0 0 550.31822 0 63 564.00000 550.31822 2.43% - 0s 0 0 550.34197 0 64 564.00000 550.34197 2.42% - 0s 0 0 550.39725 0 68 564.00000 550.39725 2.41% - 0s 0 0 550.45730 0 68 564.00000 550.45730 2.40% - 0s 0 0 550.48759 0 75 564.00000 550.48759 2.40% - 0s 0 0 550.49439 0 68 564.00000 550.49439 2.39% - 0s 0 0 550.50076 0 70 564.00000 550.50076 2.39% - 0s 0 0 550.51373 0 72 564.00000 550.51373 2.39% - 0s 0 0 550.52638 0 70 564.00000 550.52638 2.39% - 0s 0 0 550.52861 0 71 564.00000 550.52861 2.39% - 0s 0 0 550.54049 0 69 564.00000 550.54049 2.39% - 0s 0 0 550.54299 0 73 564.00000 550.54299 2.39% - 0s 0 0 550.55700 0 69 564.00000 550.55700 2.38% - 0s 0 0 550.57494 0 76 564.00000 550.57494 2.38% - 0s 0 0 550.60067 0 71 564.00000 550.60067 2.38% - 0s 0 0 550.60101 0 75 564.00000 550.60101 2.38% - 0s 0 0 550.62424 0 75 564.00000 550.62424 2.37% - 0s 0 0 550.62424 0 79 564.00000 550.62424 2.37% - 0s 0 0 550.62424 0 79 564.00000 550.62424 2.37% - 0s H 0 0 563.0000000 550.62424 2.20% - 0s 0 2 550.62459 0 79 563.00000 550.62459 2.20% - 0s * 38 19 28 561.0000000 551.44134 1.70% 9.7 0s * 54 29 15 560.0000000 551.48535 1.52% 9.9 0s * 55 26 14 558.0000000 551.48535 1.17% 9.7 0s * 247 67 8 557.0000000 553.38843 0.65% 9.0 0s Cutting planes: Gomory: 4 MIR: 2 Zero half: 22 Explored 478 nodes (4321 simplex iterations) in 0.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 39), (39, 50), (41, 43), (10, 50), (10, 31), (11, 40), (11, 31), (15, 26), (16, 38), (16, 46), (20, 41), (20, 42), (14, 26), (14, 42)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (12, 17), (17, 51), (35, 51), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 157 rows, 1275 columns and 30845 nonzeros Presolve time: 0.02s Presolved: 157 rows, 1275 columns, 30845 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.82675 2.52% - 0s 0 0 550.21909 0 64 563.00000 550.21909 2.27% - 0s 0 0 550.21909 0 51 563.00000 550.21909 2.27% - 0s 0 0 550.24946 0 63 563.00000 550.24946 2.26% - 0s 0 0 550.37188 0 63 563.00000 550.37188 2.24% - 0s 0 0 550.44938 0 66 563.00000 550.44938 2.23% - 0s 0 0 550.48234 0 64 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 68 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 65 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 64 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 65 563.00000 550.48234 2.22% - 0s 0 2 550.50617 0 64 563.00000 550.50617 2.22% - 0s * 26 16 18 561.0000000 551.39241 1.71% 12.5 0s * 48 27 18 558.0000000 552.05291 1.07% 11.2 0s * 171 44 10 557.0000000 552.95607 0.73% 10.0 0s Cutting planes: Gomory: 5 MIR: 1 Zero half: 22 Explored 381 nodes (3625 simplex iterations) in 0.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.570000000000e+02, best bound 5.570000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (38, 45), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 18), (5, 19), (41, 43), (14, 42), (14, 26), (15, 26), (18, 43), (20, 41), (20, 42)] Optimize a model with 159 rows, 1275 columns and 31100 nonzeros Presolve time: 0.02s Presolved: 159 rows, 1275 columns, 31100 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.82675 2.52% - 0s 0 0 550.21909 0 64 563.00000 550.21909 2.27% - 0s 0 0 550.21909 0 51 563.00000 550.21909 2.27% - 0s 0 0 550.24946 0 63 563.00000 550.24946 2.26% - 0s 0 0 550.37188 0 63 563.00000 550.37188 2.24% - 0s 0 0 550.44938 0 66 563.00000 550.44938 2.23% - 0s 0 0 550.48234 0 64 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 68 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 65 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 64 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 65 563.00000 550.48234 2.22% - 0s 0 0 550.48234 0 64 563.00000 550.48234 2.22% - 0s 0 2 550.50617 0 64 563.00000 550.50617 2.22% - 0s * 25 17 18 562.0000000 551.39241 1.89% 10.9 0s H 29 17 561.0000000 551.77234 1.64% 10.4 0s * 55 35 22 560.0000000 552.05291 1.42% 10.1 0s * 146 64 10 559.0000000 552.61062 1.14% 10.4 0s * 230 75 13 558.0000000 552.95607 0.90% 10.0 0s Cutting planes: Gomory: 6 MIR: 1 Zero half: 15 Explored 775 nodes (6431 simplex iterations) in 0.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 19), (38, 45), (41, 43), (43, 45), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (6, 50), (10, 35), (10, 50), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (12, 39), (17, 39), (17, 51), (21, 36), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 161 rows, 1275 columns and 31407 nonzeros Presolve time: 0.02s Presolved: 161 rows, 1275 columns, 31407 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.82675 1.82% - 0s 0 0 549.96366 0 58 559.00000 549.96366 1.62% - 0s 0 0 549.96366 0 51 559.00000 549.96366 1.62% - 0s 0 0 550.24946 0 63 559.00000 550.24946 1.57% - 0s 0 0 550.37311 0 62 559.00000 550.37311 1.54% - 0s 0 0 550.44119 0 65 559.00000 550.44119 1.53% - 0s 0 0 550.48011 0 68 559.00000 550.48011 1.52% - 0s 0 0 550.48291 0 71 559.00000 550.48291 1.52% - 0s 0 0 550.49572 0 64 559.00000 550.49572 1.52% - 0s 0 0 550.50322 0 71 559.00000 550.50322 1.52% - 0s 0 0 550.54352 0 66 559.00000 550.54352 1.51% - 0s 0 0 550.54981 0 71 559.00000 550.54981 1.51% - 0s 0 0 550.57061 0 68 559.00000 550.57061 1.51% - 0s 0 0 550.58943 0 71 559.00000 550.58943 1.50% - 0s 0 0 550.59037 0 73 559.00000 550.59037 1.50% - 0s 0 2 550.63063 0 72 559.00000 550.63063 1.50% - 0s * 44 29 14 558.0000000 551.68645 1.13% 9.4 0s Cutting planes: Gomory: 7 MIR: 1 Zero half: 19 Explored 746 nodes (6272 simplex iterations) in 0.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (17, 22), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 46), (5, 18), (41, 43), (43, 45), (45, 46), (16, 34), (16, 38), (18, 38), (19, 26), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 163 rows, 1275 columns and 31603 nonzeros Presolve time: 0.02s Presolved: 163 rows, 1275 columns, 31603 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start 0 0 550.21909 0 64 1672.00000 550.21909 67.1% - 0s 0 0 550.30460 0 61 1672.00000 550.30460 67.1% - 0s 0 0 550.30460 0 65 1672.00000 550.30460 67.1% - 0s 0 0 550.39680 0 60 1672.00000 550.39680 67.1% - 0s H 0 0 775.0000000 550.39680 29.0% - 0s H 0 0 590.0000000 550.39680 6.71% - 0s H 0 0 567.0000000 550.39680 2.93% - 0s 0 0 550.42891 0 63 567.00000 550.42891 2.92% - 0s 0 0 550.42891 0 51 567.00000 550.42891 2.92% - 0s 0 0 550.42891 0 61 567.00000 550.42891 2.92% - 0s 0 0 550.42952 0 64 567.00000 550.42952 2.92% - 0s 0 0 550.46927 0 64 567.00000 550.46927 2.92% - 0s 0 0 550.48595 0 67 567.00000 550.48595 2.91% - 0s 0 0 550.51057 0 70 567.00000 550.51057 2.91% - 0s 0 0 550.51188 0 70 567.00000 550.51188 2.91% - 0s 0 0 550.51574 0 73 567.00000 550.51574 2.91% - 0s H 0 0 565.0000000 550.51574 2.56% - 0s 0 2 550.52863 0 73 565.00000 550.52863 2.56% - 0s * 22 18 18 558.0000000 551.46857 1.17% 12.0 0s Cutting planes: Gomory: 6 MIR: 3 Zero half: 13 Explored 783 nodes (6737 simplex iterations) in 1.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (16, 45), (16, 46), (17, 22), (17, 51), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 164 rows, 1275 columns and 32038 nonzeros Presolve time: 0.02s Presolved: 164 rows, 1275 columns, 32038 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.82675 2.17% - 0s 0 0 550.22467 0 64 561.00000 550.22467 1.92% - 0s 0 0 550.22467 0 51 561.00000 550.22467 1.92% - 0s 0 0 550.22467 0 64 561.00000 550.22467 1.92% - 0s 0 0 550.36411 0 61 561.00000 550.36411 1.90% - 0s 0 0 550.44938 0 66 561.00000 550.44938 1.88% - 0s 0 0 550.48034 0 62 561.00000 550.48034 1.88% - 0s 0 0 550.48034 0 66 561.00000 550.48034 1.88% - 0s 0 0 550.48034 0 63 561.00000 550.48034 1.88% - 0s 0 0 550.48034 0 66 561.00000 550.48034 1.88% - 0s 0 0 550.48034 0 66 561.00000 550.48034 1.88% - 0s 0 2 550.56446 0 66 561.00000 550.56446 1.86% - 0s * 100 47 13 558.0000000 552.08276 1.06% 8.0 0s Cutting planes: Gomory: 6 MIR: 1 Zero half: 11 Explored 657 nodes (5501 simplex iterations) in 0.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (6, 39), (6, 50), (9, 27), (9, 49), (10, 31), (10, 50), (11, 31), (11, 40), (14, 19), (14, 42), (16, 45), (16, 46), (17, 39), (17, 51), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 165 rows, 1275 columns and 32503 nonzeros Presolve time: 0.02s Presolved: 165 rows, 1275 columns, 32503 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.82675 2.34% - 0s 0 0 550.22467 0 64 562.00000 550.22467 2.10% - 0s 0 0 550.22467 0 51 562.00000 550.22467 2.10% - 0s 0 0 550.22467 0 64 562.00000 550.22467 2.10% - 0s 0 0 550.37131 0 63 562.00000 550.37131 2.07% - 0s 0 0 550.42364 0 66 562.00000 550.42364 2.06% - 0s 0 0 550.48034 0 68 562.00000 550.48034 2.05% - 0s 0 0 550.52060 0 66 562.00000 550.52060 2.04% - 0s 0 0 550.52060 0 70 562.00000 550.52060 2.04% - 0s 0 0 550.52060 0 68 562.00000 550.52060 2.04% - 0s 0 0 550.52060 0 71 562.00000 550.52060 2.04% - 0s 0 0 550.52060 0 70 562.00000 550.52060 2.04% - 0s 0 2 550.53655 0 70 562.00000 550.53655 2.04% - 0s * 15 13 11 559.0000000 551.49262 1.34% 14.9 0s * 137 62 13 558.0000000 552.42671 1.00% 10.4 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 18 Explored 726 nodes (5867 simplex iterations) in 0.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 21), (4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 39), (10, 51), (12, 39), (17, 30), (21, 36), (22, 30), (22, 35), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 42), (11, 40), (11, 31), (15, 26), (16, 38), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26), (31, 50)] Optimize a model with 167 rows, 1275 columns and 32892 nonzeros Presolve time: 0.02s Presolved: 167 rows, 1275 columns, 32892 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 132 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.82675 2.34% - 0s 0 0 550.26020 0 64 562.00000 550.26020 2.09% - 0s 0 0 550.26020 0 51 562.00000 550.26020 2.09% - 0s 0 0 550.32003 0 64 562.00000 550.32003 2.08% - 0s 0 0 550.53392 0 64 562.00000 550.53392 2.04% - 0s 0 0 550.54829 0 66 562.00000 550.54829 2.04% - 0s 0 0 550.56989 0 68 562.00000 550.56989 2.03% - 0s 0 0 550.58123 0 65 562.00000 550.58123 2.03% - 0s 0 0 550.58671 0 71 562.00000 550.58671 2.03% - 0s 0 0 550.61116 0 68 562.00000 550.61116 2.03% - 0s 0 0 550.61247 0 71 562.00000 550.61247 2.03% - 0s 0 0 550.61412 0 73 562.00000 550.61412 2.03% - 0s 0 2 550.61555 0 73 562.00000 550.61555 2.03% - 0s * 65 48 26 561.0000000 551.51698 1.69% 8.9 0s H 81 39 558.0000000 551.98184 1.08% 9.0 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 16 Explored 1186 nodes (9388 simplex iterations) in 1.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(6, 39), (6, 50), (10, 50), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 22), (17, 51), (20, 41), (20, 43), (22, 35), (31, 35), (34, 40), (34, 46), (38, 45), (41, 42), (43, 45)] adding cut for [(2, 23), (3, 12), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 169 rows, 1275 columns and 33223 nonzeros Presolve time: 0.02s Presolved: 169 rows, 1275 columns, 33223 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 123 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.82675 2.52% - 0s 0 0 550.26020 0 64 563.00000 550.26020 2.26% - 0s 0 0 550.26020 0 51 563.00000 550.26020 2.26% - 0s 0 0 550.31417 0 64 563.00000 550.31417 2.25% - 0s 0 0 550.54443 0 62 563.00000 550.54443 2.21% - 0s 0 0 550.55981 0 68 563.00000 550.55981 2.21% - 0s 0 0 550.59847 0 66 563.00000 550.59847 2.20% - 0s 0 0 550.59847 0 70 563.00000 550.59847 2.20% - 0s 0 0 550.62172 0 67 563.00000 550.62172 2.20% - 0s 0 0 550.62745 0 70 563.00000 550.62745 2.20% - 0s H 0 0 559.0000000 550.62745 1.50% - 0s 0 2 550.67156 0 70 559.00000 550.67156 1.49% - 0s * 88 51 12 558.0000000 552.21528 1.04% 9.4 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 10 Explored 730 nodes (6017 simplex iterations) in 0.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 19), (38, 45), (39, 50), (41, 43), (43, 45), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (6, 39), (10, 50), (10, 51), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (12, 17), (17, 22), (21, 36), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 171 rows, 1275 columns and 33538 nonzeros Presolve time: 0.02s Presolved: 171 rows, 1275 columns, 33538 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 142 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.82675 2.34% - 0s 0 0 550.26020 0 64 562.00000 550.26020 2.09% - 0s 0 0 550.26020 0 51 562.00000 550.26020 2.09% - 0s 0 0 550.31821 0 64 562.00000 550.31821 2.08% - 0s 0 0 550.54462 0 62 562.00000 550.54462 2.04% - 0s 0 0 550.58008 0 65 562.00000 550.58008 2.03% - 0s 0 0 550.58548 0 68 562.00000 550.58548 2.03% - 0s 0 0 550.62506 0 62 562.00000 550.62506 2.02% - 0s 0 0 550.62688 0 69 562.00000 550.62688 2.02% - 0s 0 0 550.63334 0 65 562.00000 550.63334 2.02% - 0s 0 0 550.63457 0 69 562.00000 550.63457 2.02% - 0s 0 2 550.66247 0 69 562.00000 550.66247 2.02% - 0s * 123 65 20 559.0000000 552.28023 1.20% 9.9 0s * 1410 35 11 558.0000000 556.74074 0.23% 8.1 1s Cutting planes: Gomory: 4 MIR: 2 Zero half: 11 Explored 1451 nodes (11856 simplex iterations) in 1.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (9, 23), (9, 27), (11, 31), (11, 40), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 172 rows, 1275 columns and 33769 nonzeros Presolve time: 0.02s Presolved: 172 rows, 1275 columns, 33769 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 142 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 560.0000000 548.82675 2.00% - 0s 0 0 550.26020 0 64 560.00000 550.26020 1.74% - 0s 0 0 550.26020 0 51 560.00000 550.26020 1.74% - 0s 0 0 550.31821 0 64 560.00000 550.31821 1.73% - 0s 0 0 550.55838 0 61 560.00000 550.55838 1.69% - 0s 0 0 550.66210 0 67 560.00000 550.66210 1.67% - 0s 0 0 550.71832 0 63 560.00000 550.71832 1.66% - 0s 0 0 550.71832 0 67 560.00000 550.71832 1.66% - 0s 0 0 550.72699 0 69 560.00000 550.72699 1.66% - 0s 0 0 550.72963 0 70 560.00000 550.72963 1.66% - 0s 0 0 550.75427 0 72 560.00000 550.75427 1.65% - 0s 0 0 550.75943 0 75 560.00000 550.75943 1.65% - 0s 0 0 550.77037 0 72 560.00000 550.77037 1.65% - 0s 0 0 550.77798 0 74 560.00000 550.77798 1.65% - 0s 0 0 550.79550 0 77 560.00000 550.79550 1.64% - 0s 0 0 550.83485 0 77 560.00000 550.83485 1.64% - 0s 0 0 550.84988 0 77 560.00000 550.84988 1.63% - 0s 0 0 550.86679 0 76 560.00000 550.86679 1.63% - 0s 0 0 550.87512 0 75 560.00000 550.87512 1.63% - 0s 0 0 550.87917 0 81 560.00000 550.87917 1.63% - 0s 0 2 550.88788 0 81 560.00000 550.88788 1.63% - 0s * 78 48 18 559.0000000 552.23129 1.21% 10.8 0s * 1333 109 22 558.0000000 555.57143 0.44% 9.1 2s Cutting planes: Gomory: 7 MIR: 2 Zero half: 8 Explored 1553 nodes (13694 simplex iterations) in 2.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.580000000000e+02, best bound 5.580000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 18), (38, 45), (39, 50), (41, 43), (43, 45), (12, 39), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42)] adding cut for [(2, 23), (4, 37), (4, 29), (8, 44), (8, 27), (9, 32), (9, 27), (15, 25), (15, 26), (19, 26), (25, 44), (21, 23), (21, 36), (36, 37), (29, 32)] adding cut for [(3, 17), (3, 30), (10, 51), (10, 31), (17, 51), (22, 35), (22, 30), (31, 35)] Optimize a model with 175 rows, 1275 columns and 34053 nonzeros Presolve time: 0.02s Presolved: 175 rows, 1275 columns, 34053 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 564.0000000 548.82675 2.69% - 0s 0 0 550.26020 0 64 564.00000 550.26020 2.44% - 0s 0 0 550.26020 0 51 564.00000 550.26020 2.44% - 0s 0 0 550.31596 0 64 564.00000 550.31596 2.43% - 0s 0 0 550.52278 0 64 564.00000 550.52278 2.39% - 0s 0 0 550.52597 0 68 564.00000 550.52597 2.39% - 0s 0 0 550.56770 0 65 564.00000 550.56770 2.38% - 0s 0 0 550.56886 0 69 564.00000 550.56886 2.38% - 0s 0 0 550.57867 0 62 564.00000 550.57867 2.38% - 0s 0 0 550.58433 0 68 564.00000 550.58433 2.38% - 0s 0 0 550.59197 0 66 564.00000 550.59197 2.38% - 0s 0 0 550.59197 0 70 564.00000 550.59197 2.38% - 0s 0 0 550.59803 0 66 564.00000 550.59803 2.38% - 0s 0 0 550.60686 0 71 564.00000 550.60686 2.37% - 0s H 0 0 560.0000000 550.60686 1.68% - 0s 0 2 550.61489 0 71 560.00000 550.61489 1.68% - 0s * 78 53 16 559.0000000 552.33182 1.19% 10.3 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 1634 nodes (13847 simplex iterations) in 1.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 16), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(3, 12), (3, 17), (39, 50), (10, 50), (10, 51), (12, 39), (17, 51)] Optimize a model with 177 rows, 1275 columns and 34264 nonzeros Presolve time: 0.02s Presolved: 177 rows, 1275 columns, 34264 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488267e+02, 120 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.82675 0 51 1672.00000 548.82675 67.2% - 0s Another try with MIP start H 0 0 566.0000000 548.82675 3.03% - 0s 0 0 550.32003 0 64 566.00000 550.32003 2.77% - 0s 0 0 550.32003 0 51 566.00000 550.32003 2.77% - 0s 0 0 550.32003 0 64 566.00000 550.32003 2.77% - 0s 0 0 550.53392 0 64 566.00000 550.53392 2.73% - 0s 0 0 550.54829 0 66 566.00000 550.54829 2.73% - 0s 0 0 550.56989 0 68 566.00000 550.56989 2.73% - 0s 0 0 550.57143 0 64 566.00000 550.57143 2.73% - 0s 0 0 550.57143 0 68 566.00000 550.57143 2.73% - 0s 0 0 550.60187 0 67 566.00000 550.60187 2.72% - 0s 0 0 550.60445 0 76 566.00000 550.60445 2.72% - 0s 0 0 550.61140 0 74 566.00000 550.61140 2.72% - 0s 0 0 550.61733 0 73 566.00000 550.61733 2.72% - 0s 0 0 550.63884 0 71 566.00000 550.63884 2.71% - 0s 0 0 550.64886 0 75 566.00000 550.64886 2.71% - 0s 0 0 550.65366 0 73 566.00000 550.65366 2.71% - 0s 0 0 550.65944 0 74 566.00000 550.65944 2.71% - 0s 0 0 550.66652 0 74 566.00000 550.66652 2.71% - 0s 0 0 550.66652 0 73 566.00000 550.66652 2.71% - 0s H 0 0 560.0000000 550.66652 1.67% - 0s 0 2 550.66701 0 73 560.00000 550.66701 1.67% - 0s H 208 84 559.0000000 552.89476 1.09% 10.0 0s Explored 1742 nodes (15013 simplex iterations) in 1.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 23), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 31), (17, 39), (35, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 42), (11, 40), (11, 50), (16, 45), (16, 46), (19, 26), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 179 rows, 1275 columns and 34522 nonzeros Presolve time: 0.02s Presolved: 179 rows, 1275 columns, 34522 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 128 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.85156 2.34% - 0s 0 0 550.33500 0 63 562.00000 550.33500 2.08% - 0s 0 0 550.33500 0 51 562.00000 550.33500 2.08% - 0s 0 0 550.43188 0 65 562.00000 550.43188 2.06% - 0s 0 0 550.62481 0 66 562.00000 550.62481 2.02% - 0s 0 0 550.62481 0 70 562.00000 550.62481 2.02% - 0s 0 0 550.64272 0 69 562.00000 550.64272 2.02% - 0s 0 0 550.64272 0 73 562.00000 550.64272 2.02% - 0s 0 0 550.68475 0 66 562.00000 550.68475 2.01% - 0s 0 0 550.68475 0 70 562.00000 550.68475 2.01% - 0s 0 0 550.68790 0 66 562.00000 550.68790 2.01% - 0s 0 0 550.69084 0 71 562.00000 550.69084 2.01% - 0s H 0 0 561.0000000 550.69084 1.84% - 0s 0 2 550.69385 0 71 561.00000 550.69385 1.84% - 0s * 59 36 19 559.0000000 552.02016 1.25% 9.3 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 5 Explored 1819 nodes (14802 simplex iterations) in 1.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 19), (9, 23), (9, 27), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 180 rows, 1275 columns and 34957 nonzeros Presolve time: 0.02s Presolved: 180 rows, 1275 columns, 34957 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 128 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.85156 2.34% - 0s 0 0 550.33500 0 63 562.00000 550.33500 2.08% - 0s 0 0 550.33500 0 51 562.00000 550.33500 2.08% - 0s 0 0 550.43188 0 65 562.00000 550.43188 2.06% - 0s 0 0 550.62481 0 66 562.00000 550.62481 2.02% - 0s 0 0 550.62481 0 70 562.00000 550.62481 2.02% - 0s 0 0 550.64272 0 69 562.00000 550.64272 2.02% - 0s 0 0 550.64272 0 73 562.00000 550.64272 2.02% - 0s 0 0 550.68475 0 66 562.00000 550.68475 2.01% - 0s 0 0 550.68475 0 70 562.00000 550.68475 2.01% - 0s 0 0 550.68790 0 66 562.00000 550.68790 2.01% - 0s 0 0 550.69084 0 71 562.00000 550.69084 2.01% - 0s H 0 0 561.0000000 550.69084 1.84% - 0s 0 2 550.69385 0 71 561.00000 550.69385 1.84% - 0s * 66 42 23 560.0000000 552.02016 1.42% 9.4 0s * 133 58 9 559.0000000 552.79568 1.11% 9.4 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 8 Explored 1675 nodes (14031 simplex iterations) in 1.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 33), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (17, 22), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 46), (5, 18), (41, 43), (43, 45), (45, 46), (16, 34), (16, 38), (18, 38), (20, 41), (20, 42), (14, 42), (14, 19)] Optimize a model with 182 rows, 1275 columns and 35140 nonzeros Presolve time: 0.02s Presolved: 182 rows, 1275 columns, 35140 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start 0 0 550.33500 0 63 1672.00000 550.33500 67.1% - 0s 0 0 550.54881 0 61 1672.00000 550.54881 67.1% - 0s 0 0 550.64248 0 66 1672.00000 550.64248 67.1% - 0s 0 0 550.65704 0 68 1672.00000 550.65704 67.1% - 0s 0 0 550.67485 0 64 1672.00000 550.67485 67.1% - 0s 0 0 550.67485 0 68 1672.00000 550.67485 67.1% - 0s 0 0 550.73218 0 64 1672.00000 550.73218 67.1% - 0s H 0 0 673.0000000 550.73218 18.2% - 0s H 0 0 577.0000000 550.73218 4.55% - 0s 0 0 550.73218 0 67 577.00000 550.73218 4.55% - 0s 0 0 550.73218 0 51 577.00000 550.73218 4.55% - 0s 0 0 550.73218 0 63 577.00000 550.73218 4.55% - 0s 0 0 550.73218 0 67 577.00000 550.73218 4.55% - 0s 0 0 550.73218 0 64 577.00000 550.73218 4.55% - 0s 0 0 550.73218 0 67 577.00000 550.73218 4.55% - 0s H 0 0 575.0000000 550.73218 4.22% - 0s H 0 0 572.0000000 550.73218 3.72% - 0s H 0 0 562.0000000 550.73218 2.00% - 0s 0 2 550.79815 0 67 562.00000 550.79815 1.99% - 0s * 109 66 26 560.0000000 552.86814 1.27% 10.2 0s * 232 91 14 559.0000000 553.44872 0.99% 9.9 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 5 Explored 1515 nodes (12934 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (10, 50), (10, 51), (11, 31), (11, 40), (16, 45), (16, 46), (17, 22), (17, 39), (18, 38), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (39, 50)] Optimize a model with 183 rows, 1275 columns and 35518 nonzeros Presolve time: 0.02s Presolved: 183 rows, 1275 columns, 35518 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 131 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 561.0000000 548.85156 2.17% - 0s 0 0 550.43188 0 65 561.00000 550.43188 1.88% - 0s 0 0 550.43188 0 51 561.00000 550.43188 1.88% - 0s 0 0 550.43188 0 65 561.00000 550.43188 1.88% - 0s 0 0 550.65203 0 65 561.00000 550.65203 1.84% - 0s 0 0 550.65203 0 69 561.00000 550.65203 1.84% - 0s 0 0 550.68033 0 67 561.00000 550.68033 1.84% - 0s 0 0 550.68033 0 71 561.00000 550.68033 1.84% - 0s 0 0 550.72737 0 69 561.00000 550.72737 1.83% - 0s 0 0 550.72737 0 73 561.00000 550.72737 1.83% - 0s 0 0 550.74150 0 68 561.00000 550.74150 1.83% - 0s 0 0 550.74150 0 72 561.00000 550.74150 1.83% - 0s 0 0 550.74505 0 71 561.00000 550.74505 1.83% - 0s 0 2 550.75137 0 71 561.00000 550.75137 1.83% - 0s H 81 55 560.0000000 552.07864 1.41% 9.1 0s * 291 118 19 559.0000000 553.81538 0.93% 9.5 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 1477 nodes (12861 simplex iterations) in 1.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (9, 23), (9, 27), (10, 31), (10, 39), (11, 40), (11, 50), (14, 19), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (39, 50), (41, 43), (43, 45)] Optimize a model with 184 rows, 1275 columns and 35953 nonzeros Presolve time: 0.02s Presolved: 184 rows, 1275 columns, 35953 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 564.0000000 548.85156 2.69% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 51 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.62481 0 66 564.00000 550.62481 2.37% - 0s 0 0 550.62481 0 70 564.00000 550.62481 2.37% - 0s 0 0 550.64930 0 65 564.00000 550.64930 2.37% - 0s 0 0 550.64930 0 69 564.00000 550.64930 2.37% - 0s 0 0 550.66309 0 67 564.00000 550.66309 2.36% - 0s 0 0 550.66922 0 71 564.00000 550.66922 2.36% - 0s 0 0 550.68595 0 66 564.00000 550.68595 2.36% - 0s 0 0 550.68595 0 70 564.00000 550.68595 2.36% - 0s 0 0 550.69489 0 69 564.00000 550.69489 2.36% - 0s 0 0 550.70142 0 74 564.00000 550.70142 2.36% - 0s 0 0 550.72905 0 72 564.00000 550.72905 2.35% - 0s 0 0 550.74207 0 69 564.00000 550.74207 2.35% - 0s 0 0 550.74207 0 73 564.00000 550.74207 2.35% - 0s 0 0 550.74727 0 69 564.00000 550.74727 2.35% - 0s 0 0 550.74727 0 73 564.00000 550.74727 2.35% - 0s H 0 0 562.0000000 550.74727 2.00% - 0s 0 2 550.77547 0 73 562.00000 550.77547 2.00% - 0s * 32 22 24 561.0000000 551.98556 1.61% 9.2 0s H 166 87 559.0000000 552.77108 1.11% 10.2 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 1457 nodes (12517 simplex iterations) in 1.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(16, 45), (16, 46), (34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 48), (41, 42), (43, 45), (12, 39), (14, 42), (20, 41), (20, 43), (10, 39), (10, 50), (31, 50)] adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (17, 51), (35, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 186 rows, 1275 columns and 36242 nonzeros Presolve time: 0.02s Presolved: 186 rows, 1275 columns, 36242 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 559.0000000 548.85156 1.82% - 0s 0 0 550.17623 0 62 559.00000 550.17623 1.58% - 0s 0 0 550.17623 0 51 559.00000 550.17623 1.58% - 0s 0 0 550.17623 0 62 559.00000 550.17623 1.58% - 0s 0 0 550.59680 0 64 559.00000 550.59680 1.50% - 0s 0 0 550.66550 0 68 559.00000 550.66550 1.49% - 0s 0 0 550.70880 0 66 559.00000 550.70880 1.48% - 0s 0 0 550.70880 0 70 559.00000 550.70880 1.48% - 0s 0 0 550.72319 0 62 559.00000 550.72319 1.48% - 0s 0 0 550.72319 0 66 559.00000 550.72319 1.48% - 0s 0 0 550.72504 0 71 559.00000 550.72504 1.48% - 0s 0 2 550.78320 0 71 559.00000 550.78320 1.47% - 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 9 Explored 1201 nodes (9554 simplex iterations) in 0.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (9, 27), (9, 49), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 187 rows, 1275 columns and 36567 nonzeros Presolve time: 0.02s Presolved: 187 rows, 1275 columns, 36567 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 121 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 564.0000000 548.85156 2.69% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 51 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.62481 0 66 564.00000 550.62481 2.37% - 0s 0 0 550.62481 0 70 564.00000 550.62481 2.37% - 0s 0 0 550.64930 0 65 564.00000 550.64930 2.37% - 0s 0 0 550.64930 0 69 564.00000 550.64930 2.37% - 0s 0 0 550.66309 0 67 564.00000 550.66309 2.36% - 0s 0 0 550.66922 0 71 564.00000 550.66922 2.36% - 0s 0 0 550.68595 0 66 564.00000 550.68595 2.36% - 0s 0 0 550.68595 0 70 564.00000 550.68595 2.36% - 0s 0 0 550.69489 0 69 564.00000 550.69489 2.36% - 0s 0 0 550.70142 0 74 564.00000 550.70142 2.36% - 0s 0 0 550.72905 0 68 564.00000 550.72905 2.35% - 0s 0 0 550.72905 0 72 564.00000 550.72905 2.35% - 0s 0 0 550.74207 0 69 564.00000 550.74207 2.35% - 0s 0 0 550.74207 0 73 564.00000 550.74207 2.35% - 0s 0 0 550.74727 0 69 564.00000 550.74727 2.35% - 0s 0 0 550.74727 0 73 564.00000 550.74727 2.35% - 0s H 0 0 559.0000000 550.74727 1.48% - 0s 0 2 550.77547 0 73 559.00000 550.77547 1.47% - 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 887 nodes (7347 simplex iterations) in 1.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 51), (11, 31), (11, 40), (14, 19), (14, 42), (15, 25), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (25, 44), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 188 rows, 1275 columns and 37162 nonzeros Presolve time: 0.02s Presolved: 188 rows, 1275 columns, 37162 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 562.0000000 548.85156 2.34% - 0s 0 0 550.43188 0 65 562.00000 550.43188 2.06% - 0s 0 0 550.43188 0 51 562.00000 550.43188 2.06% - 0s 0 0 550.43188 0 65 562.00000 550.43188 2.06% - 0s 0 0 550.66456 0 65 562.00000 550.66456 2.02% - 0s 0 0 550.66456 0 69 562.00000 550.66456 2.02% - 0s 0 0 550.69645 0 65 562.00000 550.69645 2.01% - 0s 0 0 550.69645 0 69 562.00000 550.69645 2.01% - 0s 0 0 550.70106 0 65 562.00000 550.70106 2.01% - 0s 0 0 550.70106 0 69 562.00000 550.70106 2.01% - 0s 0 0 550.70106 0 69 562.00000 550.70106 2.01% - 0s 0 2 550.75574 0 69 562.00000 550.75574 2.00% - 0s * 96 64 23 561.0000000 552.51549 1.51% 8.3 0s H 244 103 560.0000000 553.00785 1.25% 9.3 0s * 349 122 12 559.0000000 553.29032 1.02% 9.2 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 6 Explored 1337 nodes (11317 simplex iterations) in 1.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 18), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 189 rows, 1275 columns and 37540 nonzeros Presolve time: 0.02s Presolved: 189 rows, 1275 columns, 37540 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start 0 0 550.43188 0 65 1672.00000 550.43188 67.1% - 0s 0 0 550.62078 0 66 1672.00000 550.62078 67.1% - 0s 0 0 550.62078 0 70 1672.00000 550.62078 67.1% - 0s 0 0 550.63293 0 66 1672.00000 550.63293 67.1% - 0s H 0 0 705.0000000 550.63293 21.9% - 0s H 0 0 587.0000000 550.63293 6.20% - 0s H 0 0 561.0000000 550.63293 1.85% - 0s 0 0 550.63293 0 70 561.00000 550.63293 1.85% - 0s 0 0 550.63293 0 51 561.00000 550.63293 1.85% - 0s 0 0 550.63293 0 64 561.00000 550.63293 1.85% - 0s 0 0 550.63293 0 68 561.00000 550.63293 1.85% - 0s 0 0 550.65107 0 69 561.00000 550.65107 1.84% - 0s 0 0 550.65107 0 73 561.00000 550.65107 1.84% - 0s 0 0 550.66389 0 70 561.00000 550.66389 1.84% - 0s 0 0 550.66389 0 74 561.00000 550.66389 1.84% - 0s 0 0 550.68478 0 67 561.00000 550.68478 1.84% - 0s 0 0 550.69281 0 70 561.00000 550.69281 1.84% - 0s 0 0 550.71035 0 70 561.00000 550.71035 1.83% - 0s 0 0 550.72057 0 71 561.00000 550.72057 1.83% - 0s 0 2 550.75709 0 71 561.00000 550.75709 1.83% - 0s H 22 19 560.0000000 551.50821 1.52% 13.9 0s * 164 66 12 559.0000000 553.24390 1.03% 10.6 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 807 nodes (7112 simplex iterations) in 1.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 30), (4, 29), (4, 37), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 51), (18, 38), (18, 45), (20, 41), (20, 42), (21, 30), (21, 36), (22, 35), (22, 51), (24, 25), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 190 rows, 1275 columns and 38135 nonzeros Presolve time: 0.02s Presolved: 190 rows, 1275 columns, 38135 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 563.0000000 548.85156 2.51% - 0s 0 0 550.43188 0 65 563.00000 550.43188 2.23% - 0s 0 0 550.43188 0 51 563.00000 550.43188 2.23% - 0s 0 0 550.43188 0 65 563.00000 550.43188 2.23% - 0s 0 0 550.62481 0 66 563.00000 550.62481 2.20% - 0s 0 0 550.62481 0 70 563.00000 550.62481 2.20% - 0s 0 0 550.64930 0 65 563.00000 550.64930 2.19% - 0s 0 0 550.64930 0 69 563.00000 550.64930 2.19% - 0s 0 0 550.66309 0 67 563.00000 550.66309 2.19% - 0s 0 0 550.66922 0 71 563.00000 550.66922 2.19% - 0s 0 0 550.68595 0 66 563.00000 550.68595 2.19% - 0s 0 0 550.68595 0 70 563.00000 550.68595 2.19% - 0s 0 0 550.69032 0 69 563.00000 550.69032 2.19% - 0s 0 0 550.69081 0 74 563.00000 550.69081 2.19% - 0s 0 2 550.75307 0 74 563.00000 550.75307 2.18% - 0s * 22 15 15 561.0000000 551.63553 1.67% 12.9 0s * 55 36 28 560.0000000 552.01162 1.43% 10.4 0s * 82 42 17 559.0000000 552.10000 1.23% 9.8 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 9 Explored 974 nodes (8459 simplex iterations) in 1.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (36, 37), (35, 51), (9, 27), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (43, 45), (41, 43), (10, 39), (10, 50), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (20, 41), (20, 42), (14, 19), (14, 42), (31, 50)] Optimize a model with 192 rows, 1275 columns and 38407 nonzeros Presolve time: 0.02s Presolved: 192 rows, 1275 columns, 38407 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 564.0000000 548.85156 2.69% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 51 564.00000 550.43188 2.41% - 0s 0 0 550.43188 0 65 564.00000 550.43188 2.41% - 0s 0 0 550.66456 0 65 564.00000 550.66456 2.36% - 0s 0 0 550.66456 0 69 564.00000 550.66456 2.36% - 0s 0 0 550.68957 0 68 564.00000 550.68957 2.36% - 0s 0 0 550.68957 0 72 564.00000 550.68957 2.36% - 0s 0 0 550.75319 0 73 564.00000 550.75319 2.35% - 0s 0 0 550.75319 0 77 564.00000 550.75319 2.35% - 0s 0 0 550.77597 0 70 564.00000 550.77597 2.34% - 0s 0 0 550.77597 0 74 564.00000 550.77597 2.34% - 0s 0 0 550.78424 0 73 564.00000 550.78424 2.34% - 0s 0 0 550.78436 0 78 564.00000 550.78436 2.34% - 0s H 0 0 562.0000000 550.78436 2.00% - 0s 0 2 550.79331 0 78 562.00000 550.79331 1.99% - 0s * 73 47 22 561.0000000 552.12276 1.58% 8.6 0s * 80 43 27 560.0000000 552.12276 1.41% 8.2 0s * 183 87 7 559.0000000 552.89344 1.09% 9.5 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 11 Explored 1029 nodes (8891 simplex iterations) in 1.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(19, 26), (34, 40), (34, 46), (35, 51), (39, 50), (41, 42), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (15, 26), (16, 45), (16, 46), (43, 45), (20, 41), (20, 43), (14, 19), (14, 42), (31, 35)] adding cut for [(3, 33), (3, 17), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (17, 22), (25, 44), (21, 36), (21, 30), (22, 30), (23, 29), (24, 49), (24, 25), (4, 37), (4, 23), (29, 32)] Optimize a model with 194 rows, 1275 columns and 38788 nonzeros Presolve time: 0.02s Presolved: 194 rows, 1275 columns, 38788 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.488516e+02, 126 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 548.85156 0 51 1672.00000 548.85156 67.2% - 0s Another try with MIP start H 0 0 567.0000000 548.85156 3.20% - 0s 0 0 550.43188 0 65 567.00000 550.43188 2.92% - 0s 0 0 550.43188 0 51 567.00000 550.43188 2.92% - 0s 0 0 550.43188 0 65 567.00000 550.43188 2.92% - 0s 0 0 550.66086 0 65 567.00000 550.66086 2.88% - 0s 0 0 550.66086 0 69 567.00000 550.66086 2.88% - 0s 0 0 550.68492 0 64 567.00000 550.68492 2.88% - 0s 0 0 550.68492 0 68 567.00000 550.68492 2.88% - 0s 0 0 550.70079 0 65 567.00000 550.70079 2.87% - 0s 0 0 550.70079 0 69 567.00000 550.70079 2.87% - 0s 0 0 550.70080 0 67 567.00000 550.70080 2.87% - 0s 0 0 550.70080 0 71 567.00000 550.70080 2.87% - 0s H 0 0 562.0000000 550.70080 2.01% - 0s H 0 0 561.0000000 550.70080 1.84% - 0s 0 2 550.72972 0 71 561.00000 550.72972 1.83% - 0s * 43 27 17 560.0000000 552.06038 1.42% 11.4 0s * 502 154 14 559.0000000 554.82791 0.75% 9.0 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 4 Mod-K: 1 Explored 1070 nodes (9238 simplex iterations) in 1.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 30), (5, 14), (5, 18), (10, 31), (10, 39), (11, 40), (11, 50), (12, 17), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (22, 30), (22, 51), (31, 35), (34, 40), (34, 46), (35, 51), (39, 50), (41, 42), (43, 45)] adding cut for [(2, 23), (4, 37), (4, 29), (7, 49), (9, 49), (9, 27), (21, 23), (21, 36), (36, 37), (27, 32), (29, 32)] Optimize a model with 196 rows, 1275 columns and 39154 nonzeros Presolve time: 0.02s Presolved: 196 rows, 1275 columns, 39154 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 129 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 572.0000000 549.43728 3.94% - 0s 0 0 550.73269 0 63 572.00000 550.73269 3.72% - 0s 0 0 550.73269 0 56 572.00000 550.73269 3.72% - 0s 0 0 550.74421 0 63 572.00000 550.74421 3.72% - 0s 0 0 550.79894 0 66 572.00000 550.79894 3.71% - 0s 0 0 550.89918 0 68 572.00000 550.89918 3.69% - 0s 0 0 550.90732 0 69 572.00000 550.90732 3.69% - 0s H 0 0 562.0000000 550.90732 1.97% - 0s 0 2 550.92923 0 69 562.00000 550.92923 1.97% - 0s H 27 24 560.0000000 551.75451 1.47% 11.0 0s * 403 113 11 559.0000000 554.63636 0.78% 9.7 0s Cutting planes: Gomory: 3 MIR: 3 Zero half: 12 Explored 914 nodes (8243 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (11, 40), (11, 50), (14, 19), (14, 42), (16, 38), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 197 rows, 1275 columns and 39589 nonzeros Presolve time: 0.02s Presolved: 197 rows, 1275 columns, 39589 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 138 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 63 563.00000 550.75010 2.18% - 0s 0 0 550.78516 0 62 563.00000 550.78516 2.17% - 0s 0 0 550.81509 0 65 563.00000 550.81509 2.16% - 0s 0 0 550.88632 0 67 563.00000 550.88632 2.15% - 0s 0 0 550.94677 0 71 563.00000 550.94677 2.14% - 0s 0 0 550.97877 0 71 563.00000 550.97877 2.14% - 0s 0 0 550.99345 0 66 563.00000 550.99345 2.13% - 0s 0 0 550.99345 0 70 563.00000 550.99345 2.13% - 0s 0 0 551.01045 0 64 563.00000 551.01045 2.13% - 0s 0 0 551.01045 0 68 563.00000 551.01045 2.13% - 0s 0 0 551.01598 0 68 563.00000 551.01598 2.13% - 0s 0 2 551.01775 0 68 563.00000 551.01775 2.13% - 0s H 82 51 561.0000000 552.26697 1.56% 9.4 0s * 234 116 19 560.0000000 553.17595 1.22% 9.7 0s * 237 94 18 559.0000000 553.17595 1.04% 9.6 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 21 Explored 1139 nodes (10590 simplex iterations) in 1.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (16, 45), (16, 46), (18, 38), (18, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (43, 45)] adding cut for [(41, 42), (20, 41), (20, 42)] Optimize a model with 199 rows, 1275 columns and 39845 nonzeros Presolve time: 0.02s Presolved: 199 rows, 1275 columns, 39845 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 561.0000000 549.43728 2.06% - 0s 0 0 550.44134 0 63 561.00000 550.44134 1.88% - 0s 0 0 550.44134 0 56 561.00000 550.44134 1.88% - 0s 0 0 550.75010 0 63 561.00000 550.75010 1.83% - 0s 0 0 550.78928 0 62 561.00000 550.78928 1.82% - 0s 0 0 550.80525 0 66 561.00000 550.80525 1.82% - 0s 0 0 550.90362 0 67 561.00000 550.90362 1.80% - 0s 0 0 550.90362 0 71 561.00000 550.90362 1.80% - 0s 0 0 550.91408 0 70 561.00000 550.91408 1.80% - 0s 0 0 550.92713 0 67 561.00000 550.92713 1.80% - 0s 0 0 550.95732 0 67 561.00000 550.95732 1.79% - 0s 0 0 550.95839 0 70 561.00000 550.95839 1.79% - 0s 0 0 550.96009 0 71 561.00000 550.96009 1.79% - 0s 0 2 550.96308 0 71 561.00000 550.96308 1.79% - 0s * 166 66 9 560.0000000 553.19598 1.22% 9.9 0s * 1639 117 23 559.0000000 556.58065 0.43% 8.8 1s Cutting planes: Gomory: 3 MIR: 2 Zero half: 6 Mod-K: 1 Explored 1836 nodes (15953 simplex iterations) in 1.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (9, 27), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 200 rows, 1275 columns and 40223 nonzeros Presolve time: 0.03s Presolved: 200 rows, 1275 columns, 40223 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.83120 0 66 563.00000 550.83120 2.16% - 0s 0 0 551.00189 0 65 563.00000 551.00189 2.13% - 0s 0 0 551.01357 0 65 563.00000 551.01357 2.13% - 0s 0 0 551.02121 0 66 563.00000 551.02121 2.13% - 0s 0 0 551.02121 0 70 563.00000 551.02121 2.13% - 0s 0 0 551.02330 0 65 563.00000 551.02330 2.13% - 0s 0 0 551.02330 0 69 563.00000 551.02330 2.13% - 0s 0 2 551.02409 0 69 563.00000 551.02409 2.13% - 0s * 30 23 25 562.0000000 551.80060 1.81% 10.1 0s H 70 35 561.0000000 552.04050 1.60% 11.2 0s * 155 79 18 560.0000000 553.00000 1.25% 10.7 0s * 1286 151 26 559.0000000 555.61111 0.61% 9.2 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 1639 nodes (14539 simplex iterations) in 1.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.590000000000e+02, best bound 5.590000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (5, 18), (29, 32), (31, 35)] adding cut for [(38, 45), (41, 42), (43, 45), (14, 42), (14, 26), (15, 19), (15, 26), (20, 41), (20, 43)] Optimize a model with 202 rows, 1275 columns and 40478 nonzeros Presolve time: 0.03s Presolved: 202 rows, 1275 columns, 40478 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43728 2.58% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 56 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s H 0 0 562.0000000 550.75010 2.00% - 0s 0 0 550.83120 0 66 562.00000 550.83120 1.99% - 0s 0 0 551.00189 0 65 562.00000 551.00189 1.96% - 0s 0 2 551.68212 0 65 562.00000 551.68212 1.84% - 0s H 1 2 560.0000000 551.68212 1.49% 0.0 0s Cutting planes: Gomory: 8 MIR: 8 Zero half: 16 Explored 1564 nodes (13781 simplex iterations) in 1.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (15, 26), (16, 38), (16, 46), (17, 22), (17, 51), (18, 38), (18, 45), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (24, 25), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 203 rows, 1275 columns and 41144 nonzeros Presolve time: 0.03s Presolved: 203 rows, 1275 columns, 41144 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 570.0000000 549.43728 3.61% - 0s 0 0 550.75010 0 62 570.00000 550.75010 3.38% - 0s 0 0 550.75010 0 56 570.00000 550.75010 3.38% - 0s 0 0 550.75010 0 62 570.00000 550.75010 3.38% - 0s 0 0 550.83095 0 63 570.00000 550.83095 3.36% - 0s 0 0 550.95962 0 64 570.00000 550.95962 3.34% - 0s 0 0 550.96805 0 66 570.00000 550.96805 3.34% - 0s 0 0 551.02048 0 60 570.00000 551.02048 3.33% - 0s 0 0 551.02332 0 65 570.00000 551.02332 3.33% - 0s 0 0 551.04168 0 67 570.00000 551.04168 3.33% - 0s 0 0 551.04319 0 70 570.00000 551.04319 3.33% - 0s 0 0 551.05818 0 65 570.00000 551.05818 3.32% - 0s 0 0 551.05818 0 69 570.00000 551.05818 3.32% - 0s 0 0 551.05956 0 71 570.00000 551.05956 3.32% - 0s H 0 0 563.0000000 551.05956 2.12% - 0s 0 2 551.06067 0 71 563.00000 551.06067 2.12% - 0s * 94 52 27 560.0000000 552.04050 1.42% 10.4 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 8 Explored 2303 nodes (20465 simplex iterations) in 2.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (4, 29), (4, 37), (7, 24), (7, 49), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 51), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (29, 32), (31, 35), (36, 37)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (6, 50), (11, 40), (11, 50), (12, 39), (16, 45), (16, 46), (18, 38)] Optimize a model with 205 rows, 1275 columns and 41486 nonzeros Presolve time: 0.03s Presolved: 205 rows, 1275 columns, 41486 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 136 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.43728 3.10% - 0s 0 0 550.75010 0 62 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 56 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 62 567.00000 550.75010 2.87% - 0s 0 0 550.82846 0 66 567.00000 550.82846 2.85% - 0s 0 0 551.00189 0 65 567.00000 551.00189 2.82% - 0s 0 0 551.01131 0 65 567.00000 551.01131 2.82% - 0s 0 0 551.01743 0 67 567.00000 551.01743 2.82% - 0s 0 0 551.01876 0 70 567.00000 551.01876 2.82% - 0s 0 0 551.02135 0 73 567.00000 551.02135 2.82% - 0s H 0 0 562.0000000 551.02135 1.95% - 0s 0 2 551.07509 0 73 562.00000 551.07509 1.94% - 0s * 25 18 20 561.0000000 551.87824 1.63% 13.5 0s * 344 131 13 560.0000000 554.00000 1.07% 10.3 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 1979 nodes (17915 simplex iterations) in 2.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (6, 50), (10, 35), (10, 50), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (18, 38), (31, 35)] Optimize a model with 207 rows, 1275 columns and 41711 nonzeros Presolve time: 0.03s Presolved: 207 rows, 1275 columns, 41711 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 58 562.00000 550.75010 2.00% - 0s 0 0 550.81979 0 64 562.00000 550.81979 1.99% - 0s 0 0 550.95975 0 61 562.00000 550.95975 1.96% - 0s 0 0 550.95975 0 65 562.00000 550.95975 1.96% - 0s 0 0 551.00011 0 65 562.00000 551.00011 1.96% - 0s 0 0 551.00011 0 69 562.00000 551.00011 1.96% - 0s 0 0 551.04137 0 67 562.00000 551.04137 1.95% - 0s 0 0 551.04137 0 71 562.00000 551.04137 1.95% - 0s 0 0 551.04727 0 67 562.00000 551.04727 1.95% - 0s 0 0 551.04727 0 71 562.00000 551.04727 1.95% - 0s 0 0 551.05071 0 68 562.00000 551.05071 1.95% - 0s 0 0 551.05071 0 72 562.00000 551.05071 1.95% - 0s H 0 0 561.0000000 551.05071 1.77% - 0s 0 2 551.08801 0 72 561.00000 551.08801 1.77% - 0s * 651 184 25 560.0000000 555.18537 0.86% 9.6 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 1918 nodes (16980 simplex iterations) in 2.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (16, 45), (16, 46), (18, 38), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] adding cut for [(6, 39), (6, 50), (10, 17), (10, 50), (12, 39), (12, 17)] Optimize a model with 209 rows, 1275 columns and 42002 nonzeros Presolve time: 0.03s Presolved: 209 rows, 1275 columns, 42002 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 131 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 58 562.00000 550.75010 2.00% - 0s 0 0 550.81979 0 64 562.00000 550.81979 1.99% - 0s 0 0 550.95975 0 61 562.00000 550.95975 1.96% - 0s 0 0 550.95975 0 65 562.00000 550.95975 1.96% - 0s 0 0 551.00011 0 65 562.00000 551.00011 1.96% - 0s 0 0 551.00011 0 69 562.00000 551.00011 1.96% - 0s 0 0 551.04137 0 67 562.00000 551.04137 1.95% - 0s 0 0 551.04137 0 71 562.00000 551.04137 1.95% - 0s 0 0 551.04727 0 67 562.00000 551.04727 1.95% - 0s 0 0 551.04727 0 71 562.00000 551.04727 1.95% - 0s 0 0 551.05071 0 68 562.00000 551.05071 1.95% - 0s 0 0 551.05071 0 72 562.00000 551.05071 1.95% - 0s 0 2 551.08801 0 72 562.00000 551.08801 1.94% - 0s * 19 13 16 561.0000000 551.97814 1.61% 13.2 0s H 238 97 560.0000000 553.52381 1.16% 10.8 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 2097 nodes (17904 simplex iterations) in 2.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (17, 51), (17, 30), (22, 35), (22, 30), (18, 38), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (9, 49), (9, 27), (21, 36), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 211 rows, 1275 columns and 42239 nonzeros Presolve time: 0.03s Presolved: 211 rows, 1275 columns, 42239 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 58 562.00000 550.75010 2.00% - 0s 0 0 550.81979 0 64 562.00000 550.81979 1.99% - 0s 0 0 550.95975 0 61 562.00000 550.95975 1.96% - 0s 0 0 550.95975 0 65 562.00000 550.95975 1.96% - 0s 0 0 551.00011 0 65 562.00000 551.00011 1.96% - 0s 0 0 551.02374 0 68 562.00000 551.02374 1.95% - 0s 0 0 551.03005 0 69 562.00000 551.03005 1.95% - 0s 0 0 551.03143 0 71 562.00000 551.03143 1.95% - 0s 0 0 551.05844 0 66 562.00000 551.05844 1.95% - 0s 0 0 551.05844 0 70 562.00000 551.05844 1.95% - 0s 0 0 551.06709 0 68 562.00000 551.06709 1.95% - 0s 0 0 551.06732 0 72 562.00000 551.06732 1.95% - 0s 0 0 551.08845 0 73 562.00000 551.08845 1.94% - 0s 0 2 551.12932 0 73 562.00000 551.12932 1.93% - 0s * 46 32 19 561.0000000 552.02498 1.60% 11.3 0s H 183 74 560.0000000 553.22603 1.21% 9.9 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Mod-K: 1 Explored 1460 nodes (13523 simplex iterations) in 1.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (11, 31), (11, 40), (14, 26), (14, 42), (16, 45), (16, 46), (19, 26), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] adding cut for [(2, 23), (3, 17), (3, 23), (6, 38), (6, 50), (10, 39), (10, 50), (12, 39), (12, 17), (18, 38), (5, 18)] Optimize a model with 213 rows, 1275 columns and 42630 nonzeros Presolve time: 0.03s Presolved: 213 rows, 1275 columns, 42630 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 134 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 561.0000000 549.43728 2.06% - 0s 0 0 550.47594 0 64 561.00000 550.47594 1.88% - 0s 0 0 550.47594 0 56 561.00000 550.47594 1.88% - 0s 0 0 550.75010 0 62 561.00000 550.75010 1.83% - 0s 0 0 550.83574 0 69 561.00000 550.83574 1.81% - 0s 0 0 551.00771 0 64 561.00000 551.00771 1.78% - 0s 0 0 551.04798 0 69 561.00000 551.04798 1.77% - 0s 0 0 551.07329 0 62 561.00000 551.07329 1.77% - 0s 0 0 551.08117 0 69 561.00000 551.08117 1.77% - 0s 0 0 551.08154 0 72 561.00000 551.08154 1.77% - 0s 0 0 551.08287 0 73 561.00000 551.08287 1.77% - 0s 0 2 551.11359 0 73 561.00000 551.11359 1.76% - 0s * 108 55 14 560.0000000 552.93413 1.26% 11.0 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Mod-K: 1 Explored 2158 nodes (19606 simplex iterations) in 2.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(38, 45), (7, 24), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (25, 44)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 50), (10, 50), (10, 31), (11, 40), (11, 31), (16, 46), (16, 18)] Optimize a model with 215 rows, 1275 columns and 42787 nonzeros Presolve time: 0.03s Presolved: 215 rows, 1275 columns, 42787 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 139 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.83624 0 61 563.00000 550.83624 2.16% - 0s 0 0 550.83686 0 66 563.00000 550.83686 2.16% - 0s 0 0 550.95979 0 60 563.00000 550.95979 2.14% - 0s 0 0 550.95979 0 64 563.00000 550.95979 2.14% - 0s 0 0 550.97149 0 63 563.00000 550.97149 2.14% - 0s 0 0 550.97190 0 68 563.00000 550.97190 2.14% - 0s 0 0 550.97298 0 68 563.00000 550.97298 2.14% - 0s 0 2 550.99327 0 68 563.00000 550.99327 2.13% - 0s H 101 61 562.0000000 552.84352 1.63% 9.5 0s * 144 81 21 561.0000000 552.84352 1.45% 9.7 0s * 223 89 16 560.0000000 553.75543 1.12% 9.7 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2014 nodes (18793 simplex iterations) in 2.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 19), (38, 45), (41, 42), (43, 45), (12, 39), (14, 42), (16, 38), (16, 46), (17, 39), (17, 51), (20, 41), (20, 43), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 50), (9, 23), (9, 27), (10, 50), (10, 22), (21, 36), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 217 rows, 1275 columns and 43097 nonzeros Presolve time: 0.03s Presolved: 217 rows, 1275 columns, 43097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43728 2.58% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 56 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.83624 0 61 564.00000 550.83624 2.33% - 0s 0 0 550.83686 0 66 564.00000 550.83686 2.33% - 0s 0 0 550.95979 0 60 564.00000 550.95979 2.31% - 0s 0 0 550.95979 0 64 564.00000 550.95979 2.31% - 0s 0 0 550.97149 0 63 564.00000 550.97149 2.31% - 0s 0 0 550.97190 0 68 564.00000 550.97190 2.31% - 0s 0 0 550.97298 0 68 564.00000 550.97298 2.31% - 0s H 0 0 562.0000000 550.97298 1.96% - 0s 0 2 550.99327 0 68 562.00000 550.99327 1.96% - 0s * 80 49 21 561.0000000 552.85208 1.45% 9.3 0s * 245 96 16 560.0000000 553.75543 1.12% 9.1 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2452 nodes (21935 simplex iterations) in 2.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 19), (41, 42), (43, 45), (14, 42), (16, 45), (16, 46), (17, 51), (17, 39), (20, 41), (20, 43), (6, 39), (10, 50), (10, 31), (31, 35)] adding cut for [(2, 23), (3, 12), (3, 22), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 219 rows, 1275 columns and 43398 nonzeros Presolve time: 0.03s Presolved: 219 rows, 1275 columns, 43398 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.43728 2.75% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 56 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s H 0 0 561.0000000 550.75010 1.83% - 0s 0 0 550.83624 0 61 561.00000 550.83624 1.81% - 0s 0 2 551.41905 0 61 561.00000 551.41905 1.71% - 0s * 194 85 22 560.0000000 553.82602 1.10% 12.5 1s Cutting planes: Gomory: 9 MIR: 10 Zero half: 13 Explored 1699 nodes (14693 simplex iterations) in 2.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (10, 31), (10, 51), (11, 40), (11, 50), (14, 19), (14, 42), (16, 38), (16, 46), (17, 39), (17, 51), (20, 41), (20, 42), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (39, 50), (41, 43), (43, 45)] adding cut for [(7, 15), (8, 24), (8, 27), (9, 49), (9, 27), (15, 26), (24, 44), (25, 44), (25, 26)] Optimize a model with 221 rows, 1275 columns and 43908 nonzeros Presolve time: 0.03s Presolved: 221 rows, 1275 columns, 43908 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 135 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43728 2.58% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 56 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.83120 0 66 564.00000 550.83120 2.33% - 0s 0 0 551.00189 0 65 564.00000 551.00189 2.30% - 0s 0 0 551.01357 0 65 564.00000 551.01357 2.30% - 0s 0 0 551.02121 0 66 564.00000 551.02121 2.30% - 0s 0 0 551.02121 0 70 564.00000 551.02121 2.30% - 0s 0 0 551.02330 0 65 564.00000 551.02330 2.30% - 0s 0 0 551.02330 0 69 564.00000 551.02330 2.30% - 0s 0 2 551.02349 0 69 564.00000 551.02349 2.30% - 0s * 59 36 30 562.0000000 552.00879 1.78% 10.7 0s * 87 50 27 561.0000000 552.89606 1.44% 10.2 0s * 138 65 10 560.0000000 553.00000 1.25% 11.1 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 1291 nodes (11422 simplex iterations) in 1.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 19), (38, 45), (41, 42), (43, 45), (14, 42), (16, 38), (16, 46), (20, 41), (20, 43), (22, 35), (22, 51), (6, 50), (10, 50), (10, 51), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (12, 39), (17, 39), (17, 30), (21, 36), (36, 37), (27, 32), (29, 32)] Optimize a model with 223 rows, 1275 columns and 44223 nonzeros Presolve time: 0.03s Presolved: 223 rows, 1275 columns, 44223 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 135 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 561.0000000 549.43728 2.06% - 0s 0 0 550.45914 0 62 561.00000 550.45914 1.88% - 0s 0 0 550.45914 0 56 561.00000 550.45914 1.88% - 0s 0 0 550.75010 0 62 561.00000 550.75010 1.83% - 0s 0 0 550.82611 0 65 561.00000 550.82611 1.81% - 0s 0 0 550.88449 0 67 561.00000 550.88449 1.80% - 0s 0 0 550.97599 0 66 561.00000 550.97599 1.79% - 0s 0 0 551.04549 0 61 561.00000 551.04549 1.77% - 0s 0 0 551.04835 0 69 561.00000 551.04835 1.77% - 0s 0 0 551.05126 0 67 561.00000 551.05126 1.77% - 0s 0 0 551.06127 0 65 561.00000 551.06127 1.77% - 0s 0 0 551.06127 0 69 561.00000 551.06127 1.77% - 0s 0 0 551.06283 0 68 561.00000 551.06283 1.77% - 0s 0 0 551.06283 0 72 561.00000 551.06283 1.77% - 0s 0 2 551.06284 0 72 561.00000 551.06284 1.77% - 0s H 940 200 560.0000000 555.39070 0.82% 9.8 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2233 nodes (19613 simplex iterations) in 2.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 48), (8, 24), (8, 27), (9, 27), (9, 32), (11, 31), (11, 40), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (17, 22), (17, 51), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (24, 44), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 224 rows, 1275 columns and 44784 nonzeros Presolve time: 0.03s Presolved: 224 rows, 1275 columns, 44784 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 130 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.43728 2.75% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 56 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.83624 0 61 565.00000 550.83624 2.51% - 0s 0 0 550.83624 0 65 565.00000 550.83624 2.51% - 0s 0 0 550.88494 0 63 565.00000 550.88494 2.50% - 0s 0 0 550.97511 0 66 565.00000 550.97511 2.48% - 0s 0 0 551.03270 0 62 565.00000 551.03270 2.47% - 0s 0 0 551.03270 0 66 565.00000 551.03270 2.47% - 0s 0 0 551.04455 0 62 565.00000 551.04455 2.47% - 0s 0 0 551.04566 0 68 565.00000 551.04566 2.47% - 0s 0 0 551.04712 0 69 565.00000 551.04712 2.47% - 0s H 0 0 563.0000000 551.04712 2.12% - 0s 0 2 551.06069 0 69 563.00000 551.06069 2.12% - 0s H 88 54 562.0000000 552.80851 1.64% 10.0 0s * 167 98 10 561.0000000 552.99057 1.43% 10.6 0s * 171 78 12 560.0000000 552.99057 1.25% 10.5 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 7 Mod-K: 1 Explored 1893 nodes (17450 simplex iterations) in 2.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (38, 45), (6, 39), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (18, 38), (31, 35)] adding cut for [(3, 17), (3, 23), (36, 37), (9, 23), (9, 27), (17, 22), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(5, 43), (5, 48), (41, 42), (14, 42), (14, 26), (19, 26), (20, 41), (20, 43)] Optimize a model with 227 rows, 1275 columns and 45018 nonzeros Presolve time: 0.03s Presolved: 227 rows, 1275 columns, 45018 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 58 562.00000 550.75010 2.00% - 0s 0 0 550.81979 0 64 562.00000 550.81979 1.99% - 0s 0 0 550.85801 0 61 562.00000 550.85801 1.98% - 0s 0 0 550.95975 0 65 562.00000 550.95975 1.96% - 0s 0 0 551.00849 0 73 562.00000 551.00849 1.96% - 0s 0 0 551.08583 0 66 562.00000 551.08583 1.94% - 0s 0 0 551.08583 0 70 562.00000 551.08583 1.94% - 0s 0 0 551.11068 0 68 562.00000 551.11068 1.94% - 0s 0 0 551.11068 0 72 562.00000 551.11068 1.94% - 0s 0 0 551.11528 0 70 562.00000 551.11528 1.94% - 0s 0 0 551.11528 0 74 562.00000 551.11528 1.94% - 0s 0 2 551.11779 0 74 562.00000 551.11779 1.94% - 0s H 183 96 561.0000000 552.89216 1.45% 10.1 0s H 312 125 560.0000000 553.70833 1.12% 9.9 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 1509 nodes (15058 simplex iterations) in 2.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 45), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 228 rows, 1275 columns and 45208 nonzeros Presolve time: 0.03s Presolved: 228 rows, 1275 columns, 45208 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 128 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.43728 3.27% - 0s 0 0 550.75010 0 62 568.00000 550.75010 3.04% - 0s 0 0 550.75010 0 56 568.00000 550.75010 3.04% - 0s 0 0 550.75010 0 62 568.00000 550.75010 3.04% - 0s H 0 0 562.0000000 550.75010 2.00% - 0s 0 0 550.82719 0 65 562.00000 550.82719 1.99% - 0s 0 2 551.41905 0 65 562.00000 551.41905 1.88% - 0s * 54 31 33 561.0000000 552.58155 1.50% 16.4 1s H 97 52 560.0000000 553.09172 1.23% 15.5 1s Cutting planes: Gomory: 8 MIR: 4 Zero half: 12 Explored 1499 nodes (13390 simplex iterations) in 2.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (8, 27), (8, 44), (9, 27), (9, 32), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 229 rows, 1275 columns and 45614 nonzeros Presolve time: 0.03s Presolved: 229 rows, 1275 columns, 45614 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.83624 0 61 562.00000 550.83624 1.99% - 0s 0 0 550.94245 0 65 562.00000 550.94245 1.97% - 0s 0 0 551.03143 0 68 562.00000 551.03143 1.95% - 0s 0 0 551.05458 0 62 562.00000 551.05458 1.95% - 0s 0 0 551.05458 0 66 562.00000 551.05458 1.95% - 0s 0 0 551.06287 0 66 562.00000 551.06287 1.95% - 0s 0 0 551.06287 0 70 562.00000 551.06287 1.95% - 0s 0 0 551.08066 0 71 562.00000 551.08066 1.94% - 0s 0 0 551.08417 0 74 562.00000 551.08417 1.94% - 0s 0 0 551.11434 0 71 562.00000 551.11434 1.94% - 0s 0 0 551.11434 0 75 562.00000 551.11434 1.94% - 0s 0 0 551.16067 0 66 562.00000 551.16067 1.93% - 0s 0 0 551.16067 0 70 562.00000 551.16067 1.93% - 0s 0 0 551.16572 0 68 562.00000 551.16572 1.93% - 0s 0 0 551.16982 0 74 562.00000 551.16982 1.93% - 0s 0 2 551.17564 0 74 562.00000 551.17564 1.93% - 0s * 237 102 12 561.0000000 553.36236 1.36% 9.5 0s * 415 150 17 560.0000000 554.19178 1.04% 9.4 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2050 nodes (18653 simplex iterations) in 2.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 12), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 39), (39, 50), (10, 35), (10, 50), (11, 40), (11, 31), (16, 46), (16, 18), (31, 35)] Optimize a model with 231 rows, 1275 columns and 45825 nonzeros Presolve time: 0.03s Presolved: 231 rows, 1275 columns, 45825 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.73269 0 63 563.00000 550.73269 2.18% - 0s 0 0 550.73269 0 56 563.00000 550.73269 2.18% - 0s 0 0 550.73269 0 63 563.00000 550.73269 2.18% - 0s 0 0 550.79539 0 66 563.00000 550.79539 2.17% - 0s 0 0 550.90368 0 68 563.00000 550.90368 2.15% - 0s 0 0 550.92789 0 68 563.00000 550.92789 2.14% - 0s 0 0 550.93572 0 66 563.00000 550.93572 2.14% - 0s 0 0 550.94606 0 73 563.00000 550.94606 2.14% - 0s 0 0 550.94749 0 73 563.00000 550.94749 2.14% - 0s 0 0 550.95608 0 73 563.00000 550.95608 2.14% - 0s 0 0 550.97314 0 67 563.00000 550.97314 2.14% - 0s 0 0 550.97377 0 72 563.00000 550.97377 2.14% - 0s 0 0 550.97775 0 68 563.00000 550.97775 2.14% - 0s 0 0 550.97775 0 72 563.00000 550.97775 2.14% - 0s 0 2 550.98554 0 72 563.00000 550.98554 2.13% - 0s H 27 22 562.0000000 551.64953 1.84% 9.0 0s H 81 50 561.0000000 552.41722 1.53% 10.2 0s * 1139 203 33 560.0000000 555.05622 0.88% 10.1 2s Cutting planes: Gomory: 2 MIR: 1 Zero half: 12 Explored 2060 nodes (19594 simplex iterations) in 2.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 232 rows, 1275 columns and 46203 nonzeros Presolve time: 0.03s Presolved: 232 rows, 1275 columns, 46203 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43728 2.93% - 0s 0 0 550.73269 0 63 566.00000 550.73269 2.70% - 0s 0 0 550.73269 0 56 566.00000 550.73269 2.70% - 0s 0 0 550.75010 0 63 566.00000 550.75010 2.69% - 0s 0 0 550.78102 0 62 566.00000 550.78102 2.69% - 0s 0 0 550.80257 0 66 566.00000 550.80257 2.69% - 0s 0 0 550.87509 0 67 566.00000 550.87509 2.67% - 0s 0 0 550.89921 0 68 566.00000 550.89921 2.67% - 0s 0 0 550.91309 0 65 566.00000 550.91309 2.67% - 0s 0 0 550.91309 0 69 566.00000 550.91309 2.67% - 0s 0 0 550.92423 0 67 566.00000 550.92423 2.66% - 0s 0 0 550.92423 0 72 566.00000 550.92423 2.66% - 0s 0 0 551.00010 0 63 566.00000 551.00010 2.65% - 0s 0 0 551.00308 0 66 566.00000 551.00308 2.65% - 0s 0 0 551.00653 0 72 566.00000 551.00653 2.65% - 0s 0 2 551.01862 0 72 566.00000 551.01862 2.65% - 0s * 35 23 29 562.0000000 551.83624 1.81% 12.7 0s * 285 130 13 561.0000000 553.72581 1.30% 10.0 0s * 1236 187 21 560.0000000 555.90000 0.73% 10.0 2s Cutting planes: Gomory: 2 MIR: 3 Zero half: 7 Explored 1899 nodes (18055 simplex iterations) in 2.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (41, 43), (43, 45)] Optimize a model with 233 rows, 1275 columns and 46638 nonzeros Presolve time: 0.03s Presolved: 233 rows, 1275 columns, 46638 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.43728 3.27% - 0s 0 0 550.73269 0 63 568.00000 550.73269 3.04% - 0s 0 0 550.73269 0 56 568.00000 550.73269 3.04% - 0s 0 0 550.75010 0 62 568.00000 550.75010 3.04% - 0s 0 0 550.82846 0 66 568.00000 550.82846 3.02% - 0s 0 0 551.00107 0 64 568.00000 551.00107 2.99% - 0s 0 0 551.00993 0 68 568.00000 551.00993 2.99% - 0s 0 0 551.00993 0 72 568.00000 551.00993 2.99% - 0s 0 0 551.02639 0 65 568.00000 551.02639 2.99% - 0s 0 0 551.02639 0 69 568.00000 551.02639 2.99% - 0s 0 0 551.04301 0 67 568.00000 551.04301 2.99% - 0s 0 0 551.04425 0 75 568.00000 551.04425 2.99% - 0s 0 0 551.09019 0 72 568.00000 551.09019 2.98% - 0s 0 0 551.09364 0 71 568.00000 551.09364 2.98% - 0s 0 0 551.10946 0 77 568.00000 551.10946 2.97% - 0s 0 0 551.10957 0 77 568.00000 551.10957 2.97% - 0s 0 0 551.11566 0 74 568.00000 551.11566 2.97% - 0s 0 0 551.12306 0 78 568.00000 551.12306 2.97% - 0s H 0 0 566.0000000 551.12306 2.63% - 0s H 0 0 565.0000000 551.12306 2.46% - 0s H 0 0 563.0000000 551.12306 2.11% - 0s 0 2 551.12802 0 78 563.00000 551.12802 2.11% - 0s * 138 91 24 562.0000000 552.47200 1.70% 9.4 1s * 247 119 19 561.0000000 553.08841 1.41% 8.9 1s H 880 249 560.0000000 554.80769 0.93% 10.2 2s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 2076 nodes (18630 simplex iterations) in 2.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (5, 43), (5, 48), (8, 24), (8, 27), (10, 31), (10, 39), (12, 17), (14, 26), (14, 42), (15, 25), (15, 26), (17, 39), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (24, 44), (25, 44), (27, 32), (29, 32), (31, 35), (35, 51), (36, 37), (41, 42)] Optimize a model with 234 rows, 1275 columns and 47073 nonzeros Presolve time: 0.03s Presolved: 234 rows, 1275 columns, 47073 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 141 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 570.0000000 549.43728 3.61% - 0s 0 0 550.75010 0 62 570.00000 550.75010 3.38% - 0s 0 0 550.75010 0 56 570.00000 550.75010 3.38% - 0s 0 0 550.75010 0 62 570.00000 550.75010 3.38% - 0s 0 0 550.82846 0 66 570.00000 550.82846 3.36% - 0s 0 0 551.00112 0 65 570.00000 551.00112 3.33% - 0s 0 0 551.01673 0 65 570.00000 551.01673 3.33% - 0s 0 0 551.01673 0 69 570.00000 551.01673 3.33% - 0s 0 0 551.02261 0 67 570.00000 551.02261 3.33% - 0s 0 0 551.02349 0 73 570.00000 551.02349 3.33% - 0s 0 0 551.04902 0 67 570.00000 551.04902 3.32% - 0s 0 0 551.11550 0 70 570.00000 551.11550 3.31% - 0s 0 0 551.11707 0 75 570.00000 551.11707 3.31% - 0s 0 0 551.14510 0 70 570.00000 551.14510 3.31% - 0s 0 0 551.14510 0 74 570.00000 551.14510 3.31% - 0s 0 0 551.16043 0 71 570.00000 551.16043 3.31% - 0s 0 0 551.16043 0 75 570.00000 551.16043 3.31% - 0s 0 0 551.16183 0 71 570.00000 551.16183 3.30% - 0s 0 0 551.17254 0 76 570.00000 551.17254 3.30% - 0s 0 0 551.18235 0 80 570.00000 551.18235 3.30% - 0s 0 0 551.23447 0 70 570.00000 551.23447 3.29% - 0s 0 0 551.26316 0 75 570.00000 551.26316 3.29% - 0s 0 0 551.27180 0 75 570.00000 551.27180 3.29% - 0s 0 0 551.27748 0 79 570.00000 551.27748 3.28% - 0s 0 0 551.29005 0 75 570.00000 551.29005 3.28% - 0s 0 0 551.29074 0 74 570.00000 551.29074 3.28% - 0s H 0 0 562.0000000 551.29074 1.91% - 1s 0 2 551.31498 0 74 562.00000 551.31498 1.90% - 1s * 219 118 23 561.0000000 553.57377 1.32% 11.1 1s * 1350 228 32 560.0000000 555.68000 0.77% 10.2 2s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Explored 2369 nodes (22474 simplex iterations) in 3.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 44), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (16, 45), (16, 46), (17, 22), (17, 51), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (24, 49), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 12), (3, 23), (6, 38), (6, 39), (12, 39), (18, 38), (5, 18), (5, 19)] Optimize a model with 236 rows, 1275 columns and 47646 nonzeros Presolve time: 0.03s Presolved: 236 rows, 1275 columns, 47646 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 138 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 561.0000000 549.43728 2.06% - 0s 0 0 550.45914 0 62 561.00000 550.45914 1.88% - 0s 0 0 550.45914 0 56 561.00000 550.45914 1.88% - 0s 0 0 550.75010 0 62 561.00000 550.75010 1.83% - 0s 0 0 550.82611 0 65 561.00000 550.82611 1.81% - 0s 0 0 550.94882 0 65 561.00000 550.94882 1.79% - 0s 0 0 551.05059 0 66 561.00000 551.05059 1.77% - 0s 0 0 551.09854 0 66 561.00000 551.09854 1.76% - 0s 0 0 551.09929 0 70 561.00000 551.09929 1.76% - 0s 0 0 551.11769 0 74 561.00000 551.11769 1.76% - 0s 0 0 551.17969 0 74 561.00000 551.17969 1.75% - 0s 0 0 551.17980 0 80 561.00000 551.17980 1.75% - 0s 0 0 551.20653 0 67 561.00000 551.20653 1.75% - 0s 0 0 551.20822 0 73 561.00000 551.20822 1.75% - 0s 0 2 551.22002 0 73 561.00000 551.22002 1.74% - 0s * 2199 229 24 560.0000000 557.30769 0.48% 9.5 2s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 2627 nodes (24150 simplex iterations) in 2.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.600000000000e+02, best bound 5.600000000000e+02, gap 0.0% adding cut for [(5, 45), (5, 19), (7, 24), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (25, 44)] Optimize a model with 237 rows, 1275 columns and 47751 nonzeros Presolve time: 0.03s Presolved: 237 rows, 1275 columns, 47751 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 138 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.83624 0 61 563.00000 550.83624 2.16% - 0s 0 0 550.94245 0 65 563.00000 550.94245 2.14% - 0s 0 0 551.03143 0 68 563.00000 551.03143 2.13% - 0s 0 0 551.05458 0 62 563.00000 551.05458 2.12% - 0s 0 0 551.05458 0 66 563.00000 551.05458 2.12% - 0s 0 0 551.06315 0 67 563.00000 551.06315 2.12% - 0s 0 0 551.06315 0 71 563.00000 551.06315 2.12% - 0s 0 0 551.07939 0 65 563.00000 551.07939 2.12% - 0s 0 0 551.08297 0 71 563.00000 551.08297 2.12% - 0s 0 0 551.11309 0 68 563.00000 551.11309 2.11% - 0s 0 0 551.12550 0 71 563.00000 551.12550 2.11% - 0s 0 0 551.14398 0 72 563.00000 551.14398 2.11% - 0s 0 0 551.14431 0 77 563.00000 551.14431 2.11% - 0s 0 0 551.17744 0 70 563.00000 551.17744 2.10% - 0s 0 0 551.17744 0 74 563.00000 551.17744 2.10% - 0s 0 0 551.19256 0 72 563.00000 551.19256 2.10% - 0s 0 0 551.19363 0 76 563.00000 551.19363 2.10% - 0s 0 0 551.20702 0 70 563.00000 551.20702 2.09% - 0s 0 0 551.22119 0 75 563.00000 551.22119 2.09% - 0s 0 0 551.22591 0 77 563.00000 551.22591 2.09% - 0s 0 0 551.23402 0 80 563.00000 551.23402 2.09% - 0s 0 0 551.27070 0 72 563.00000 551.27070 2.08% - 0s 0 0 551.27398 0 76 563.00000 551.27398 2.08% - 0s 0 0 551.27398 0 76 563.00000 551.27398 2.08% - 0s 0 2 551.27496 0 76 563.00000 551.27496 2.08% - 1s H 82 46 561.0000000 553.00000 1.43% 11.2 1s Cutting planes: Gomory: 1 MIR: 1 Zero half: 14 Explored 3576 nodes (33558 simplex iterations) in 3.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (35, 51), (11, 40), (11, 31), (16, 38), (16, 46), (17, 51), (17, 22), (18, 38), (22, 30), (31, 35)] adding cut for [(5, 45), (5, 19), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (24, 49), (25, 44)] Optimize a model with 239 rows, 1275 columns and 47961 nonzeros Presolve time: 0.03s Presolved: 239 rows, 1275 columns, 47961 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 129 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 58 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 58 563.00000 550.75010 2.18% - 0s 0 0 550.81979 0 64 563.00000 550.81979 2.16% - 0s 0 0 550.85801 0 61 563.00000 550.85801 2.16% - 0s 0 0 550.95975 0 65 563.00000 550.95975 2.14% - 0s 0 0 551.00849 0 73 563.00000 551.00849 2.13% - 0s 0 0 551.08583 0 66 563.00000 551.08583 2.12% - 0s 0 0 551.08583 0 70 563.00000 551.08583 2.12% - 0s 0 0 551.11068 0 68 563.00000 551.11068 2.11% - 0s 0 0 551.11068 0 72 563.00000 551.11068 2.11% - 0s 0 0 551.11847 0 71 563.00000 551.11847 2.11% - 0s 0 0 551.11847 0 75 563.00000 551.11847 2.11% - 0s 0 0 551.12369 0 71 563.00000 551.12369 2.11% - 0s 0 0 551.12369 0 75 563.00000 551.12369 2.11% - 0s 0 2 551.13972 0 75 563.00000 551.13972 2.11% - 0s * 30 18 22 561.0000000 552.00000 1.60% 12.3 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 11 Explored 2773 nodes (25957 simplex iterations) in 3.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (6, 50), (9, 27), (11, 46), (11, 50), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 40)] adding cut for [(5, 18), (5, 19), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (16, 38), (16, 45), (18, 38), (20, 41), (20, 42)] Optimize a model with 241 rows, 1275 columns and 48192 nonzeros Presolve time: 0.03s Presolved: 241 rows, 1275 columns, 48192 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 573.0000000 549.43728 4.11% - 0s 0 0 550.73269 0 63 573.00000 550.73269 3.89% - 0s 0 0 550.73269 0 56 573.00000 550.73269 3.89% - 0s 0 0 550.73269 0 63 573.00000 550.73269 3.89% - 0s 0 0 550.79539 0 66 573.00000 550.79539 3.88% - 0s 0 0 550.89958 0 69 573.00000 550.89958 3.86% - 0s 0 0 550.92351 0 68 573.00000 550.92351 3.85% - 0s 0 0 550.93420 0 71 573.00000 550.93420 3.85% - 0s 0 0 550.93546 0 70 573.00000 550.93546 3.85% - 0s 0 0 550.93598 0 72 573.00000 550.93598 3.85% - 0s 0 0 550.93864 0 73 573.00000 550.93864 3.85% - 0s H 0 0 565.0000000 550.93864 2.49% - 0s H 0 0 564.0000000 550.93864 2.32% - 0s 0 2 550.93894 0 73 564.00000 550.93894 2.32% - 0s * 69 41 22 561.0000000 552.28555 1.55% 9.8 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 3032 nodes (28054 simplex iterations) in 3.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (6, 16), (9, 49), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 19), (38, 45), (41, 42), (43, 45), (14, 42), (14, 26), (18, 38), (19, 26), (20, 41), (20, 43)] Optimize a model with 243 rows, 1275 columns and 48418 nonzeros Presolve time: 0.03s Presolved: 243 rows, 1275 columns, 48418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 156 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.43728 3.27% - 0s 0 0 550.75010 0 62 568.00000 550.75010 3.04% - 0s 0 0 550.75010 0 56 568.00000 550.75010 3.04% - 0s 0 0 550.75010 0 63 568.00000 550.75010 3.04% - 0s 0 0 550.78234 0 66 568.00000 550.78234 3.03% - 0s 0 0 550.91442 0 70 568.00000 550.91442 3.01% - 0s 0 0 550.92651 0 70 568.00000 550.92651 3.01% - 0s 0 0 550.96121 0 70 568.00000 550.96121 3.00% - 0s 0 0 550.96284 0 69 568.00000 550.96284 3.00% - 0s 0 0 551.00902 0 68 568.00000 551.00902 2.99% - 0s 0 0 551.01983 0 75 568.00000 551.01983 2.99% - 0s 0 0 551.02012 0 75 568.00000 551.02012 2.99% - 0s 0 0 551.02567 0 76 568.00000 551.02567 2.99% - 0s H 0 0 561.0000000 551.02567 1.78% - 0s 0 2 551.02605 0 76 561.00000 551.02605 1.78% - 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 7 Explored 3408 nodes (29835 simplex iterations) in 3.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(35, 51), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 10), (9, 23), (9, 27), (10, 31), (21, 36), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 48), (5, 18), (8, 44), (8, 24), (41, 42), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (18, 45), (20, 41), (20, 43), (24, 49), (25, 44)] Optimize a model with 245 rows, 1275 columns and 48691 nonzeros Presolve time: 0.03s Presolved: 245 rows, 1275 columns, 48691 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 156 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.43728 3.10% - 0s 0 0 550.75010 0 62 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 56 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 62 567.00000 550.75010 2.87% - 0s 0 0 550.82846 0 66 567.00000 550.82846 2.85% - 0s 0 0 551.00189 0 65 567.00000 551.00189 2.82% - 0s 0 0 551.01684 0 65 567.00000 551.01684 2.82% - 0s 0 0 551.01775 0 68 567.00000 551.01775 2.82% - 0s 0 0 551.02140 0 72 567.00000 551.02140 2.82% - 0s 0 0 551.02483 0 69 567.00000 551.02483 2.82% - 0s 0 0 551.02483 0 73 567.00000 551.02483 2.82% - 0s H 0 0 564.0000000 551.02483 2.30% - 0s 0 2 551.02648 0 73 564.00000 551.02648 2.30% - 0s * 29 22 25 562.0000000 551.96099 1.79% 12.4 0s H 600 239 561.0000000 555.13333 1.05% 9.4 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 3277 nodes (29517 simplex iterations) in 3.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 39), (6, 50), (10, 39), (10, 31), (11, 40), (11, 50), (12, 17), (16, 45), (16, 46), (17, 51), (22, 35), (22, 51), (18, 38), (18, 45), (31, 35)] adding cut for [(2, 23), (3, 33), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(5, 43), (8, 44), (8, 24), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (24, 49), (25, 44)] Optimize a model with 248 rows, 1275 columns and 49000 nonzeros Presolve time: 0.03s Presolved: 248 rows, 1275 columns, 49000 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 134 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 569.0000000 549.43728 3.44% - 0s 0 0 550.73269 0 63 569.00000 550.73269 3.21% - 0s 0 0 550.73269 0 56 569.00000 550.73269 3.21% - 0s 0 0 550.73269 0 63 569.00000 550.73269 3.21% - 0s 0 0 550.79539 0 66 569.00000 550.79539 3.20% - 0s 0 0 550.90482 0 66 569.00000 550.90482 3.18% - 0s 0 0 550.90838 0 71 569.00000 550.90838 3.18% - 0s 0 0 550.93088 0 68 569.00000 550.93088 3.18% - 0s 0 0 550.93177 0 72 569.00000 550.93177 3.18% - 0s 0 0 550.93913 0 71 569.00000 550.93913 3.17% - 0s H 0 0 562.0000000 550.93913 1.97% - 0s 0 2 550.95323 0 71 562.00000 550.95323 1.97% - 0s * 253 112 15 561.0000000 553.42857 1.35% 11.0 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 7 Explored 2740 nodes (25487 simplex iterations) in 3.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (10, 51), (10, 31), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] Optimize a model with 249 rows, 1275 columns and 49171 nonzeros Presolve time: 0.03s Presolved: 249 rows, 1275 columns, 49171 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 134 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.73269 0 59 562.00000 550.73269 2.00% - 0s 0 0 550.73269 0 56 562.00000 550.73269 2.00% - 0s 0 0 550.75010 0 63 562.00000 550.75010 2.00% - 0s 0 0 550.78516 0 62 562.00000 550.78516 2.00% - 0s 0 0 550.78516 0 66 562.00000 550.78516 2.00% - 0s 0 0 550.89166 0 64 562.00000 550.89166 1.98% - 0s 0 0 550.90399 0 67 562.00000 550.90399 1.97% - 0s 0 0 550.91416 0 70 562.00000 550.91416 1.97% - 0s 0 0 550.93822 0 66 562.00000 550.93822 1.97% - 0s 0 0 550.94363 0 69 562.00000 550.94363 1.97% - 0s 0 0 550.97259 0 68 562.00000 550.97259 1.96% - 0s 0 0 550.97859 0 77 562.00000 550.97859 1.96% - 0s 0 0 550.98483 0 72 562.00000 550.98483 1.96% - 0s 0 0 550.99568 0 71 562.00000 550.99568 1.96% - 0s 0 0 551.00149 0 73 562.00000 551.00149 1.96% - 0s 0 0 551.00790 0 75 562.00000 551.00790 1.96% - 0s 0 2 551.04156 0 75 562.00000 551.04156 1.95% - 0s * 72 43 17 561.0000000 552.36972 1.54% 14.8 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 2841 nodes (26756 simplex iterations) in 3.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 42), (5, 18), (41, 42), (43, 45), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (6, 50)] adding cut for [(8, 44), (8, 24), (14, 19), (14, 26), (15, 25), (15, 26), (24, 49), (25, 44)] Optimize a model with 252 rows, 1275 columns and 49448 nonzeros Presolve time: 0.03s Presolved: 252 rows, 1275 columns, 49448 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 572.0000000 549.43728 3.94% - 0s 0 0 550.73269 0 59 572.00000 550.73269 3.72% - 0s 0 0 550.73269 0 56 572.00000 550.73269 3.72% - 0s 0 0 550.75010 0 63 572.00000 550.75010 3.72% - 0s 0 0 550.78102 0 62 572.00000 550.78102 3.71% - 0s 0 0 550.80257 0 66 572.00000 550.80257 3.71% - 0s 0 0 550.87843 0 67 572.00000 550.87843 3.69% - 0s 0 0 550.90405 0 68 572.00000 550.90405 3.69% - 0s 0 0 550.92526 0 65 572.00000 550.92526 3.68% - 0s 0 0 550.92526 0 69 572.00000 550.92526 3.68% - 0s 0 0 550.95298 0 69 572.00000 550.95298 3.68% - 0s 0 0 550.95340 0 75 572.00000 550.95340 3.68% - 0s 0 0 550.98856 0 75 572.00000 550.98856 3.67% - 0s 0 0 550.99174 0 75 572.00000 550.99174 3.67% - 0s 0 0 550.99800 0 75 572.00000 550.99800 3.67% - 0s H 0 0 570.0000000 550.99800 3.33% - 0s H 0 0 563.0000000 550.99800 2.13% - 0s 0 2 551.00422 0 75 563.00000 551.00422 2.13% - 0s * 26 15 20 562.0000000 551.73616 1.83% 12.8 0s * 225 106 12 561.0000000 553.36667 1.36% 10.6 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 2606 nodes (24836 simplex iterations) in 3.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (9, 23), (9, 27), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 253 rows, 1275 columns and 49799 nonzeros Presolve time: 0.03s Presolved: 253 rows, 1275 columns, 49799 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.73269 0 63 562.00000 550.73269 2.00% - 0s 0 0 550.73269 0 56 562.00000 550.73269 2.00% - 0s 0 0 550.73269 0 59 562.00000 550.73269 2.00% - 0s 0 0 550.76284 0 62 562.00000 550.76284 2.00% - 0s 0 0 550.79232 0 62 562.00000 550.79232 1.99% - 0s 0 0 550.79232 0 66 562.00000 550.79232 1.99% - 0s 0 0 550.85534 0 66 562.00000 550.85534 1.98% - 0s 0 0 550.85534 0 70 562.00000 550.85534 1.98% - 0s 0 0 550.87537 0 68 562.00000 550.87537 1.98% - 0s 0 0 550.87748 0 73 562.00000 550.87748 1.98% - 0s 0 0 550.91489 0 65 562.00000 550.91489 1.97% - 0s 0 0 550.92777 0 71 562.00000 550.92777 1.97% - 0s 0 0 550.93592 0 69 562.00000 550.93592 1.97% - 0s 0 0 550.94904 0 71 562.00000 550.94904 1.97% - 0s 0 0 550.96996 0 74 562.00000 550.96996 1.96% - 0s 0 0 550.97979 0 72 562.00000 550.97979 1.96% - 0s 0 0 550.98203 0 74 562.00000 550.98203 1.96% - 0s 0 0 550.98975 0 67 562.00000 550.98975 1.96% - 0s 0 0 550.98989 0 68 562.00000 550.98989 1.96% - 0s 0 0 550.99999 0 76 562.00000 550.99999 1.96% - 0s 0 0 551.00307 0 72 562.00000 551.00307 1.96% - 0s 0 0 551.01103 0 72 562.00000 551.01103 1.96% - 0s 0 0 551.06688 0 72 562.00000 551.06688 1.95% - 0s 0 0 551.08438 0 75 562.00000 551.08438 1.94% - 0s 0 2 551.13615 0 75 562.00000 551.13615 1.93% - 0s * 182 95 14 561.0000000 553.09383 1.41% 11.2 1s Cutting planes: Gomory: 1 MIR: 1 Zero half: 13 Explored 3134 nodes (29299 simplex iterations) in 3.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (7, 15), (8, 24), (8, 27), (10, 31), (10, 51), (12, 39), (15, 26), (17, 39), (17, 51), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 42), (11, 40), (11, 50), (16, 38), (16, 46), (20, 43), (20, 41), (14, 42), (14, 19)] Optimize a model with 255 rows, 1275 columns and 50180 nonzeros Presolve time: 0.03s Presolved: 255 rows, 1275 columns, 50180 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 119 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 569.0000000 549.43728 3.44% - 0s 0 0 550.75010 0 62 569.00000 550.75010 3.21% - 0s 0 0 550.75010 0 56 569.00000 550.75010 3.21% - 0s 0 0 550.75010 0 63 569.00000 550.75010 3.21% - 0s 0 0 550.78102 0 62 569.00000 550.78102 3.20% - 0s 0 0 550.78471 0 65 569.00000 550.78471 3.20% - 0s 0 0 550.87396 0 70 569.00000 550.87396 3.19% - 0s 0 0 550.89293 0 71 569.00000 550.89293 3.18% - 0s 0 0 550.93822 0 68 569.00000 550.93822 3.17% - 0s 0 0 550.93822 0 72 569.00000 550.93822 3.17% - 0s 0 0 550.94859 0 76 569.00000 550.94859 3.17% - 0s 0 0 550.95132 0 73 569.00000 550.95132 3.17% - 0s 0 0 550.95398 0 72 569.00000 550.95398 3.17% - 0s 0 0 550.96612 0 75 569.00000 550.96612 3.17% - 0s 0 0 550.99466 0 70 569.00000 550.99466 3.16% - 0s 0 0 550.99466 0 74 569.00000 550.99466 3.16% - 0s 0 0 551.00046 0 76 569.00000 551.00046 3.16% - 0s H 0 0 562.0000000 551.00046 1.96% - 0s 0 2 551.00688 0 76 562.00000 551.00688 1.96% - 0s * 469 189 25 561.0000000 554.37255 1.18% 10.4 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 2674 nodes (25652 simplex iterations) in 3.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (39, 50), (9, 49), (9, 27), (10, 39), (10, 51), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] adding cut for [(5, 48), (5, 18), (7, 24), (8, 44), (8, 24), (41, 42), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (18, 45), (20, 41), (20, 43), (25, 44)] Optimize a model with 257 rows, 1275 columns and 50510 nonzeros Presolve time: 0.03s Presolved: 257 rows, 1275 columns, 50510 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 119 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.43728 2.75% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 56 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 63 565.00000 550.75010 2.52% - 0s 0 0 550.78516 0 62 565.00000 550.78516 2.52% - 0s 0 0 550.78516 0 66 565.00000 550.78516 2.52% - 0s 0 0 550.89166 0 64 565.00000 550.89166 2.50% - 0s 0 0 550.89166 0 68 565.00000 550.89166 2.50% - 0s 0 0 550.89431 0 66 565.00000 550.89431 2.50% - 0s 0 0 550.90636 0 70 565.00000 550.90636 2.49% - 0s 0 0 550.95242 0 68 565.00000 550.95242 2.49% - 0s 0 0 550.95242 0 72 565.00000 550.95242 2.49% - 0s 0 0 550.97230 0 66 565.00000 550.97230 2.48% - 0s 0 0 550.97291 0 69 565.00000 550.97291 2.48% - 0s 0 0 550.97625 0 72 565.00000 550.97625 2.48% - 0s H 0 0 564.0000000 550.97625 2.31% - 0s H 0 0 562.0000000 550.97625 1.96% - 0s 0 2 550.99478 0 72 562.00000 550.99478 1.96% - 0s * 81 45 19 561.0000000 552.31252 1.55% 9.9 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 8 Explored 2317 nodes (22528 simplex iterations) in 2.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (38, 45), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (22, 35), (22, 30), (31, 35)] adding cut for [(5, 43), (7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] Optimize a model with 259 rows, 1275 columns and 50679 nonzeros Presolve time: 0.03s Presolved: 259 rows, 1275 columns, 50679 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 132 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43728 2.93% - 0s 0 0 550.75010 0 62 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 56 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 63 566.00000 550.75010 2.69% - 0s 0 0 550.78193 0 62 566.00000 550.78193 2.69% - 0s 0 0 550.78193 0 66 566.00000 550.78193 2.69% - 0s 0 0 550.85421 0 63 566.00000 550.85421 2.68% - 0s 0 0 550.86145 0 67 566.00000 550.86145 2.67% - 0s 0 0 550.87957 0 64 566.00000 550.87957 2.67% - 0s 0 0 550.88317 0 67 566.00000 550.88317 2.67% - 0s 0 0 550.89779 0 72 566.00000 550.89779 2.67% - 0s 0 0 550.90650 0 71 566.00000 550.90650 2.67% - 0s H 0 0 563.0000000 550.90650 2.15% - 0s 0 2 550.90909 0 71 563.00000 550.90909 2.15% - 0s * 204 112 14 562.0000000 553.03774 1.59% 10.4 1s * 390 174 13 561.0000000 554.70476 1.12% 10.1 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 2632 nodes (24624 simplex iterations) in 3.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 49), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35), (31, 50)] adding cut for [(5, 18), (41, 42), (43, 45), (14, 42), (14, 26), (18, 45), (19, 26), (20, 41), (20, 43)] Optimize a model with 261 rows, 1275 columns and 50934 nonzeros Presolve time: 0.03s Presolved: 261 rows, 1275 columns, 50934 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 561.0000000 549.43728 2.06% - 0s 0 0 550.45914 0 62 561.00000 550.45914 1.88% - 0s 0 0 550.45914 0 56 561.00000 550.45914 1.88% - 0s 0 0 550.75010 0 63 561.00000 550.75010 1.83% - 0s 0 0 550.78969 0 62 561.00000 550.78969 1.82% - 0s 0 0 550.80541 0 66 561.00000 550.80541 1.82% - 0s 0 0 550.89317 0 69 561.00000 550.89317 1.80% - 0s 0 0 550.97177 0 65 561.00000 550.97177 1.79% - 0s 0 0 550.97177 0 69 561.00000 550.97177 1.79% - 0s 0 0 550.97673 0 64 561.00000 550.97673 1.79% - 0s 0 0 550.97763 0 70 561.00000 550.97763 1.79% - 0s 0 0 550.99236 0 70 561.00000 550.99236 1.78% - 0s 0 0 551.00071 0 71 561.00000 551.00071 1.78% - 0s 0 0 551.00840 0 68 561.00000 551.00840 1.78% - 0s 0 0 551.05611 0 70 561.00000 551.05611 1.77% - 0s 0 0 551.06028 0 72 561.00000 551.06028 1.77% - 0s 0 0 551.07776 0 70 561.00000 551.07776 1.77% - 0s 0 0 551.08731 0 71 561.00000 551.08731 1.77% - 0s 0 0 551.09336 0 75 561.00000 551.09336 1.77% - 0s 0 0 551.10302 0 69 561.00000 551.10302 1.76% - 0s 0 0 551.11709 0 75 561.00000 551.11709 1.76% - 0s 0 0 551.12516 0 73 561.00000 551.12516 1.76% - 0s 0 0 551.12910 0 79 561.00000 551.12910 1.76% - 0s 0 0 551.13105 0 72 561.00000 551.13105 1.76% - 0s 0 0 551.13384 0 76 561.00000 551.13384 1.76% - 0s 0 2 551.14124 0 76 561.00000 551.14124 1.76% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 18 Mod-K: 1 Explored 2513 nodes (24646 simplex iterations) in 3.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (14, 26), (14, 42), (16, 45), (16, 46), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (23, 29), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 262 rows, 1275 columns and 51369 nonzeros Presolve time: 0.03s Presolved: 262 rows, 1275 columns, 51369 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start 0 0 550.67938 0 61 1672.00000 550.67938 67.1% - 0s 0 0 550.79475 0 62 1672.00000 550.79475 67.1% - 0s 0 0 550.85589 0 65 1672.00000 550.85589 67.1% - 0s 0 0 550.87135 0 68 1672.00000 550.87135 67.1% - 0s 0 0 550.94139 0 69 1672.00000 550.94139 67.0% - 0s 0 0 550.95453 0 70 1672.00000 550.95453 67.0% - 0s 0 0 550.99592 0 67 1672.00000 550.99592 67.0% - 0s H 0 0 672.0000000 550.99592 18.0% - 0s 0 0 550.99592 0 71 672.00000 550.99592 18.0% - 0s 0 0 551.04128 0 75 672.00000 551.04128 18.0% - 0s 0 0 551.04128 0 79 672.00000 551.04128 18.0% - 0s 0 0 551.05783 0 71 672.00000 551.05783 18.0% - 0s H 0 0 575.0000000 551.05783 4.16% - 0s 0 0 551.05783 0 75 575.00000 551.05783 4.16% - 0s 0 0 551.05783 0 56 575.00000 551.05783 4.16% - 0s 0 0 551.05783 0 67 575.00000 551.05783 4.16% - 0s 0 0 551.10563 0 68 575.00000 551.10563 4.16% - 0s 0 0 551.10563 0 72 575.00000 551.10563 4.16% - 0s 0 0 551.11999 0 73 575.00000 551.11999 4.15% - 0s 0 0 551.13597 0 72 575.00000 551.13597 4.15% - 0s 0 0 551.15547 0 77 575.00000 551.15547 4.15% - 0s 0 0 551.18606 0 79 575.00000 551.18606 4.14% - 0s H 0 0 573.0000000 551.18606 3.81% - 1s H 0 0 568.0000000 551.18606 2.96% - 1s H 0 0 562.0000000 551.18606 1.92% - 1s 0 2 551.19035 0 79 562.00000 551.19035 1.92% - 1s * 315 147 13 561.0000000 553.88749 1.27% 10.9 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 3057 nodes (28269 simplex iterations) in 4.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 27), (17, 51), (35, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (6, 50), (10, 50), (10, 31), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (18, 38)] Optimize a model with 264 rows, 1275 columns and 51580 nonzeros Presolve time: 0.03s Presolved: 264 rows, 1275 columns, 51580 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.43728 3.10% - 0s 0 0 550.75010 0 62 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 56 567.00000 550.75010 2.87% - 0s 0 0 550.75010 0 63 567.00000 550.75010 2.87% - 0s 0 0 550.78102 0 62 567.00000 550.78102 2.86% - 0s 0 0 550.78471 0 65 567.00000 550.78471 2.86% - 0s 0 0 550.87396 0 70 567.00000 550.87396 2.84% - 0s 0 0 550.89293 0 71 567.00000 550.89293 2.84% - 0s 0 0 550.93822 0 68 567.00000 550.93822 2.83% - 0s 0 0 550.93822 0 72 567.00000 550.93822 2.83% - 0s 0 0 550.94943 0 73 567.00000 550.94943 2.83% - 0s 0 0 550.98215 0 66 567.00000 550.98215 2.83% - 0s 0 0 550.98531 0 70 567.00000 550.98531 2.82% - 0s 0 0 551.03412 0 67 567.00000 551.03412 2.82% - 0s 0 0 551.04715 0 70 567.00000 551.04715 2.81% - 0s 0 0 551.06548 0 73 567.00000 551.06548 2.81% - 0s 0 0 551.07654 0 74 567.00000 551.07654 2.81% - 0s 0 0 551.07880 0 74 567.00000 551.07880 2.81% - 0s 0 0 551.08446 0 76 567.00000 551.08446 2.81% - 0s H 0 0 564.0000000 551.08446 2.29% - 0s 0 2 551.12811 0 76 564.00000 551.12811 2.28% - 0s H 223 138 563.0000000 553.83065 1.63% 10.6 1s * 385 204 18 562.0000000 554.30000 1.37% 10.6 1s * 550 216 12 561.0000000 555.00000 1.07% 10.3 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 2539 nodes (24102 simplex iterations) in 3.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 18), (5, 19), (29, 32), (31, 35)] Optimize a model with 265 rows, 1275 columns and 51770 nonzeros Presolve time: 0.03s Presolved: 265 rows, 1275 columns, 51770 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.43728 2.75% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 56 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 63 565.00000 550.75010 2.52% - 0s H 0 0 564.0000000 550.75010 2.35% - 0s 0 0 550.78324 0 62 564.00000 550.78324 2.34% - 0s 0 0 550.78324 0 66 564.00000 550.78324 2.34% - 0s 0 0 550.84926 0 64 564.00000 550.84926 2.33% - 0s 0 0 550.85131 0 68 564.00000 550.85131 2.33% - 0s 0 0 550.87401 0 67 564.00000 550.87401 2.33% - 0s 0 0 550.87531 0 73 564.00000 550.87531 2.33% - 0s 0 0 550.90383 0 70 564.00000 550.90383 2.32% - 0s 0 0 550.93369 0 73 564.00000 550.93369 2.32% - 0s 0 0 550.97219 0 66 564.00000 550.97219 2.31% - 0s 0 0 550.97219 0 70 564.00000 550.97219 2.31% - 0s 0 0 550.97257 0 73 564.00000 550.97257 2.31% - 0s 0 0 550.97257 0 73 564.00000 550.97257 2.31% - 0s 0 2 550.97764 0 73 564.00000 550.97764 2.31% - 0s H 27 14 562.0000000 552.20603 1.74% 13.1 0s * 419 175 18 561.0000000 554.74286 1.12% 10.1 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 2180 nodes (21889 simplex iterations) in 3.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 266 rows, 1275 columns and 51960 nonzeros Presolve time: 0.03s Presolved: 266 rows, 1275 columns, 51960 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43728 2.41% - 0s 0 0 550.75010 0 62 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 56 563.00000 550.75010 2.18% - 0s 0 0 550.75010 0 63 563.00000 550.75010 2.18% - 0s 0 0 550.78516 0 62 563.00000 550.78516 2.17% - 0s 0 0 550.78516 0 66 563.00000 550.78516 2.17% - 0s 0 0 550.89166 0 64 563.00000 550.89166 2.15% - 0s 0 0 550.89166 0 68 563.00000 550.89166 2.15% - 0s 0 0 550.89440 0 70 563.00000 550.89440 2.15% - 0s 0 0 550.93949 0 68 563.00000 550.93949 2.14% - 0s 0 0 550.95851 0 69 563.00000 550.95851 2.14% - 0s 0 0 550.96309 0 76 563.00000 550.96309 2.14% - 0s 0 0 550.99309 0 74 563.00000 550.99309 2.13% - 0s 0 0 551.00098 0 76 563.00000 551.00098 2.13% - 0s 0 0 551.00503 0 75 563.00000 551.00503 2.13% - 0s 0 0 551.00712 0 78 563.00000 551.00712 2.13% - 0s 0 0 551.01460 0 78 563.00000 551.01460 2.13% - 0s 0 2 551.01881 0 78 563.00000 551.01881 2.13% - 0s * 30 22 24 561.0000000 551.94563 1.61% 10.8 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 15 Explored 2477 nodes (24513 simplex iterations) in 3.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 45), (5, 19), (41, 42), (43, 45), (14, 42), (14, 26), (15, 26), (20, 41), (20, 43)] Optimize a model with 268 rows, 1275 columns and 52176 nonzeros Presolve time: 0.03s Presolved: 268 rows, 1275 columns, 52176 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 571.0000000 549.43728 3.78% - 0s 0 0 550.75010 0 62 571.00000 550.75010 3.55% - 0s 0 0 550.75010 0 56 571.00000 550.75010 3.55% - 0s 0 0 550.75010 0 63 571.00000 550.75010 3.55% - 0s 0 0 550.78040 0 62 571.00000 550.78040 3.54% - 0s 0 0 550.78040 0 66 571.00000 550.78040 3.54% - 0s 0 0 550.84714 0 65 571.00000 550.84714 3.53% - 0s 0 0 550.84714 0 69 571.00000 550.84714 3.53% - 0s 0 0 550.89093 0 66 571.00000 550.89093 3.52% - 0s 0 0 550.89093 0 70 571.00000 550.89093 3.52% - 0s 0 0 550.90291 0 67 571.00000 550.90291 3.52% - 0s 0 0 550.90291 0 71 571.00000 550.90291 3.52% - 0s 0 0 550.91340 0 64 571.00000 550.91340 3.52% - 0s 0 0 550.91402 0 69 571.00000 550.91402 3.52% - 0s 0 0 550.92042 0 73 571.00000 550.92042 3.52% - 0s H 0 0 569.0000000 550.92042 3.18% - 0s H 0 0 563.0000000 550.92042 2.15% - 1s 0 2 550.93071 0 73 563.00000 550.93071 2.14% - 1s * 304 132 14 561.0000000 554.14815 1.22% 11.1 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 2637 nodes (24922 simplex iterations) in 3.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 17), (3, 30), (38, 45), (6, 39), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (17, 51), (22, 35), (22, 30), (18, 38), (31, 35)] Optimize a model with 269 rows, 1275 columns and 52366 nonzeros Presolve time: 0.03s Presolved: 269 rows, 1275 columns, 52366 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 59 562.00000 550.75010 2.00% - 0s 0 0 550.77491 0 64 562.00000 550.77491 2.00% - 0s 0 0 550.79839 0 62 562.00000 550.79839 1.99% - 0s 0 0 550.81199 0 65 562.00000 550.81199 1.99% - 0s 0 0 550.87995 0 66 562.00000 550.87995 1.98% - 0s 0 0 550.92931 0 69 562.00000 550.92931 1.97% - 0s 0 0 550.94196 0 69 562.00000 550.94196 1.97% - 0s 0 0 550.94196 0 69 562.00000 550.94196 1.97% - 0s 0 0 550.94196 0 68 562.00000 550.94196 1.97% - 0s 0 2 550.95473 0 68 562.00000 550.95473 1.97% - 0s * 285 111 15 561.0000000 554.20779 1.21% 11.6 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 9 Explored 2675 nodes (26213 simplex iterations) in 3.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (9, 23), (9, 27), (11, 31), (11, 40), (16, 45), (16, 46), (18, 45), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 270 rows, 1275 columns and 52619 nonzeros Presolve time: 0.03s Presolved: 270 rows, 1275 columns, 52619 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43728 2.24% - 0s 0 0 550.75010 0 62 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 56 562.00000 550.75010 2.00% - 0s 0 0 550.75010 0 58 562.00000 550.75010 2.00% - 0s 0 0 550.81979 0 64 562.00000 550.81979 1.99% - 0s 0 0 550.85801 0 61 562.00000 550.85801 1.98% - 0s 0 0 550.95975 0 65 562.00000 550.95975 1.96% - 0s 0 0 551.00849 0 73 562.00000 551.00849 1.96% - 0s 0 0 551.08583 0 66 562.00000 551.08583 1.94% - 0s 0 0 551.08583 0 70 562.00000 551.08583 1.94% - 0s 0 0 551.11068 0 68 562.00000 551.11068 1.94% - 0s 0 0 551.11068 0 72 562.00000 551.11068 1.94% - 0s 0 0 551.11847 0 71 562.00000 551.11847 1.94% - 0s 0 0 551.11847 0 75 562.00000 551.11847 1.94% - 0s 0 0 551.12369 0 71 562.00000 551.12369 1.94% - 0s 0 0 551.12369 0 75 562.00000 551.12369 1.94% - 0s 0 2 551.13972 0 75 562.00000 551.13972 1.93% - 0s * 864 306 28 561.0000000 555.21429 1.03% 11.0 2s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 2826 nodes (27408 simplex iterations) in 3.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 23), (4, 29), (4, 37), (5, 43), (5, 48), (8, 24), (8, 27), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (20, 41), (20, 43), (21, 36), (24, 44), (25, 44), (29, 32), (36, 37), (41, 42)] Optimize a model with 271 rows, 1275 columns and 52919 nonzeros Presolve time: 0.03s Presolved: 271 rows, 1275 columns, 52919 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43728 2.58% - 0s 0 0 550.75010 0 62 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 56 564.00000 550.75010 2.35% - 0s 0 0 550.75010 0 63 564.00000 550.75010 2.35% - 0s 0 0 550.78516 0 62 564.00000 550.78516 2.34% - 0s 0 0 550.78516 0 66 564.00000 550.78516 2.34% - 0s 0 0 550.89166 0 63 564.00000 550.89166 2.32% - 0s 0 0 550.89166 0 67 564.00000 550.89166 2.32% - 0s 0 0 550.89193 0 69 564.00000 550.89193 2.32% - 0s 0 0 550.92383 0 70 564.00000 550.92383 2.32% - 0s 0 0 550.93620 0 70 564.00000 550.93620 2.32% - 0s 0 0 550.95189 0 70 564.00000 550.95189 2.31% - 0s 0 0 550.96792 0 68 564.00000 550.96792 2.31% - 0s 0 0 550.96792 0 72 564.00000 550.96792 2.31% - 0s 0 0 551.00158 0 70 564.00000 551.00158 2.30% - 0s 0 0 551.00170 0 75 564.00000 551.00170 2.30% - 0s 0 0 551.00649 0 75 564.00000 551.00649 2.30% - 0s 0 2 551.01767 0 75 564.00000 551.01767 2.30% - 0s * 63 46 33 563.0000000 552.51729 1.86% 10.0 1s * 118 68 17 562.0000000 553.02661 1.60% 10.3 1s * 805 283 36 561.0000000 554.94118 1.08% 10.9 2s Cutting planes: Gomory: 2 MIR: 2 Zero half: 13 Explored 2684 nodes (24764 simplex iterations) in 3.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 23), (3, 30), (4, 29), (4, 37), (5, 43), (5, 48), (8, 24), (8, 27), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (20, 41), (20, 43), (21, 30), (21, 36), (24, 44), (25, 44), (29, 32), (36, 37), (41, 42)] Optimize a model with 272 rows, 1275 columns and 53219 nonzeros Presolve time: 0.03s Presolved: 272 rows, 1275 columns, 53219 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 571.0000000 549.43728 3.78% - 0s 0 0 550.75010 0 62 571.00000 550.75010 3.55% - 0s 0 0 550.75010 0 56 571.00000 550.75010 3.55% - 0s 0 0 550.75010 0 63 571.00000 550.75010 3.55% - 0s 0 0 550.78102 0 62 571.00000 550.78102 3.54% - 0s 0 0 550.78471 0 65 571.00000 550.78471 3.54% - 0s 0 0 550.87396 0 70 571.00000 550.87396 3.52% - 0s 0 0 550.89293 0 71 571.00000 550.89293 3.52% - 0s 0 0 550.93822 0 68 571.00000 550.93822 3.51% - 0s 0 0 550.93822 0 72 571.00000 550.93822 3.51% - 0s 0 0 550.94859 0 76 571.00000 550.94859 3.51% - 0s 0 0 550.95319 0 76 571.00000 550.95319 3.51% - 0s 0 0 550.95677 0 74 571.00000 550.95677 3.51% - 0s 0 0 550.95677 0 75 571.00000 550.95677 3.51% - 0s H 0 0 568.0000000 550.95677 3.00% - 0s H 0 0 564.0000000 550.95677 2.31% - 0s 0 2 550.96796 0 74 564.00000 550.96796 2.31% - 0s * 76 49 20 563.0000000 552.38496 1.89% 11.5 1s * 386 172 20 562.0000000 554.31765 1.37% 10.2 1s * 546 196 13 561.0000000 554.77958 1.11% 10.0 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 10 Explored 2349 nodes (23221 simplex iterations) in 3.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (11, 31), (11, 40), (15, 26), (16, 38), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] adding cut for [(5, 48), (5, 18), (41, 43), (43, 45), (14, 42), (14, 19), (18, 45), (20, 41), (20, 42)] Optimize a model with 274 rows, 1275 columns and 53540 nonzeros Presolve time: 0.03s Presolved: 274 rows, 1275 columns, 53540 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43728 2.93% - 0s 0 0 550.75010 0 62 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 56 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 63 566.00000 550.75010 2.69% - 0s 0 0 550.77902 0 62 566.00000 550.77902 2.69% - 0s 0 0 550.77902 0 66 566.00000 550.77902 2.69% - 0s 0 0 550.87399 0 63 566.00000 550.87399 2.67% - 0s 0 0 550.87824 0 66 566.00000 550.87824 2.67% - 0s 0 0 550.89354 0 69 566.00000 550.89354 2.67% - 0s 0 0 550.92045 0 70 566.00000 550.92045 2.66% - 0s 0 0 550.95134 0 71 566.00000 550.95134 2.66% - 0s 0 0 551.06197 0 67 566.00000 551.06197 2.64% - 0s 0 0 551.06992 0 73 566.00000 551.06992 2.64% - 0s 0 0 551.09873 0 72 566.00000 551.09873 2.63% - 0s 0 0 551.14255 0 71 566.00000 551.14255 2.62% - 0s 0 0 551.14310 0 76 566.00000 551.14310 2.62% - 0s 0 0 551.17247 0 67 566.00000 551.17247 2.62% - 0s 0 0 551.17851 0 74 566.00000 551.17851 2.62% - 0s 0 0 551.19701 0 75 566.00000 551.19701 2.62% - 0s 0 0 551.19928 0 77 566.00000 551.19928 2.61% - 0s 0 0 551.21749 0 77 566.00000 551.21749 2.61% - 0s 0 0 551.23435 0 74 566.00000 551.23435 2.61% - 0s 0 0 551.23699 0 81 566.00000 551.23699 2.61% - 0s 0 0 551.23895 0 82 566.00000 551.23895 2.61% - 0s 0 2 551.24866 0 82 566.00000 551.24866 2.61% - 0s H 27 27 564.0000000 551.87500 2.15% 13.7 1s * 37 31 31 563.0000000 551.87500 1.98% 12.1 1s * 94 58 21 562.0000000 553.00000 1.60% 10.1 1s * 178 98 13 561.0000000 553.20769 1.39% 10.2 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 3221 nodes (29765 simplex iterations) in 4.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (12, 17), (21, 36), (21, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (6, 39), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 38), (16, 46), (22, 35), (22, 51), (31, 35)] Optimize a model with 276 rows, 1275 columns and 53722 nonzeros Presolve time: 0.03s Presolved: 276 rows, 1275 columns, 53722 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.43728 2.75% - 0s 0 0 550.75010 0 62 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 56 565.00000 550.75010 2.52% - 0s 0 0 550.75010 0 59 565.00000 550.75010 2.52% - 0s 0 0 550.76979 0 63 565.00000 550.76979 2.52% - 0s 0 0 550.77665 0 64 565.00000 550.77665 2.52% - 0s 0 0 550.85292 0 66 565.00000 550.85292 2.50% - 0s 0 0 550.86884 0 66 565.00000 550.86884 2.50% - 0s 0 0 550.88173 0 68 565.00000 550.88173 2.50% - 0s 0 0 550.89726 0 68 565.00000 550.89726 2.50% - 0s 0 0 550.89772 0 70 565.00000 550.89772 2.50% - 0s 0 0 550.91927 0 67 565.00000 550.91927 2.49% - 0s 0 0 550.92624 0 64 565.00000 550.92624 2.49% - 0s 0 0 550.92992 0 72 565.00000 550.92992 2.49% - 0s 0 0 550.95945 0 72 565.00000 550.95945 2.49% - 0s 0 0 550.98116 0 74 565.00000 550.98116 2.48% - 0s 0 0 551.01898 0 72 565.00000 551.01898 2.47% - 0s 0 0 551.02826 0 69 565.00000 551.02826 2.47% - 0s 0 0 551.04033 0 72 565.00000 551.04033 2.47% - 0s 0 0 551.04114 0 76 565.00000 551.04114 2.47% - 0s 0 0 551.05968 0 72 565.00000 551.05968 2.47% - 0s 0 0 551.06180 0 72 565.00000 551.06180 2.47% - 0s 0 0 551.06627 0 74 565.00000 551.06627 2.47% - 0s 0 2 551.06927 0 74 565.00000 551.06927 2.47% - 0s H 27 25 564.0000000 551.41984 2.23% 14.0 1s H 73 45 562.0000000 552.51368 1.69% 12.9 1s * 489 209 10 561.0000000 554.82450 1.10% 10.9 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Explored 2582 nodes (25417 simplex iterations) in 3.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 18), (39, 50), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (6, 39), (10, 50), (10, 31)] adding cut for [(3, 33), (3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 278 rows, 1275 columns and 53998 nonzeros Presolve time: 0.03s Presolved: 278 rows, 1275 columns, 53998 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43728 2.93% - 0s 0 0 550.75010 0 62 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 56 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 63 566.00000 550.75010 2.69% - 0s 0 0 550.77902 0 62 566.00000 550.77902 2.69% - 0s 0 0 550.77902 0 66 566.00000 550.77902 2.69% - 0s 0 0 550.87399 0 63 566.00000 550.87399 2.67% - 0s 0 0 550.87824 0 66 566.00000 550.87824 2.67% - 0s 0 0 550.89354 0 69 566.00000 550.89354 2.67% - 0s 0 0 550.92045 0 70 566.00000 550.92045 2.66% - 0s 0 0 550.95134 0 71 566.00000 550.95134 2.66% - 0s 0 0 551.06176 0 67 566.00000 551.06176 2.64% - 0s 0 0 551.06992 0 73 566.00000 551.06992 2.64% - 0s 0 0 551.09754 0 63 566.00000 551.09754 2.63% - 0s 0 0 551.09851 0 73 566.00000 551.09851 2.63% - 0s 0 0 551.14255 0 71 566.00000 551.14255 2.62% - 0s 0 0 551.14310 0 76 566.00000 551.14310 2.62% - 0s 0 0 551.16019 0 69 566.00000 551.16019 2.62% - 0s 0 0 551.16710 0 76 566.00000 551.16710 2.62% - 0s H 0 0 565.0000000 551.16710 2.45% - 0s H 0 0 564.0000000 551.16710 2.28% - 0s H 0 0 563.0000000 551.16710 2.10% - 0s 0 2 551.16765 0 76 563.00000 551.16765 2.10% - 0s H 136 82 562.0000000 552.75000 1.65% 12.7 1s * 277 136 17 561.0000000 553.78125 1.29% 11.8 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 11 Explored 2980 nodes (28775 simplex iterations) in 3.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 19), (9, 23), (9, 27), (11, 40), (11, 50), (14, 26), (14, 42), (16, 38), (16, 46), (19, 26), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 279 rows, 1275 columns and 54463 nonzeros Presolve time: 0.03s Presolved: 279 rows, 1275 columns, 54463 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494373e+02, 108 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43728 0 56 1672.00000 549.43728 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43728 2.93% - 0s 0 0 550.75010 0 62 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 56 566.00000 550.75010 2.69% - 0s 0 0 550.75010 0 62 566.00000 550.75010 2.69% - 0s H 0 0 564.0000000 550.75010 2.35% - 0s 0 0 550.81384 0 70 564.00000 550.81384 2.34% - 0s 0 0 550.92053 0 69 564.00000 550.92053 2.32% - 0s 0 0 550.98847 0 66 564.00000 550.98847 2.31% - 0s 0 0 550.98847 0 70 564.00000 550.98847 2.31% - 0s 0 0 551.02735 0 66 564.00000 551.02735 2.30% - 0s 0 0 551.03003 0 71 564.00000 551.03003 2.30% - 0s 0 2 551.03659 0 71 564.00000 551.03659 2.30% - 0s H 40 28 562.0000000 552.87303 1.62% 11.8 0s * 880 221 32 561.0000000 555.15152 1.04% 11.1 2s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 2583 nodes (25632 simplex iterations) in 3.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(5, 18), (5, 43), (6, 50), (10, 35), (10, 39), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (31, 35), (34, 40), (34, 46), (38, 45), (39, 50), (41, 43)] adding cut for [(2, 23), (3, 33), (3, 17), (4, 37), (4, 29), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 281 rows, 1275 columns and 54785 nonzeros Presolve time: 0.03s Presolved: 281 rows, 1275 columns, 54785 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.43831 3.10% - 0s 0 0 550.81579 0 64 567.00000 550.81579 2.85% - 0s 0 0 550.81579 0 56 567.00000 550.81579 2.85% - 0s 0 0 550.81579 0 64 567.00000 550.81579 2.85% - 0s 0 0 550.88321 0 67 567.00000 550.88321 2.84% - 0s 0 0 550.94768 0 64 567.00000 550.94768 2.83% - 0s 0 0 550.94768 0 68 567.00000 550.94768 2.83% - 0s 0 0 550.96967 0 67 567.00000 550.96967 2.83% - 0s 0 0 550.96978 0 71 567.00000 550.96978 2.83% - 0s 0 0 551.03234 0 68 567.00000 551.03234 2.82% - 0s 0 0 551.04227 0 72 567.00000 551.04227 2.81% - 0s 0 0 551.06531 0 70 567.00000 551.06531 2.81% - 0s 0 0 551.06983 0 72 567.00000 551.06983 2.81% - 0s 0 0 551.07410 0 73 567.00000 551.07410 2.81% - 0s 0 0 551.07987 0 70 567.00000 551.07987 2.81% - 0s 0 0 551.08258 0 75 567.00000 551.08258 2.81% - 0s 0 0 551.11510 0 65 567.00000 551.11510 2.80% - 0s 0 0 551.11510 0 69 567.00000 551.11510 2.80% - 0s 0 0 551.11772 0 68 567.00000 551.11772 2.80% - 0s H 0 0 563.0000000 551.11772 2.11% - 0s 0 0 551.11967 0 72 563.00000 551.11967 2.11% - 0s 0 2 551.68215 0 72 563.00000 551.68215 2.01% - 0s H 17 12 561.0000000 551.68215 1.66% 0.0 1s Cutting planes: Gomory: 9 MIR: 10 Zero half: 15 Mod-K: 1 Explored 2277 nodes (22713 simplex iterations) in 4.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 39), (12, 39), (14, 26), (14, 42), (15, 25), (15, 26), (17, 22), (17, 51), (18, 45), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (24, 44), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 282 rows, 1275 columns and 55220 nonzeros Presolve time: 0.03s Presolved: 282 rows, 1275 columns, 55220 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 571.0000000 549.43831 3.78% - 0s 0 0 550.81579 0 64 571.00000 550.81579 3.53% - 0s 0 0 550.81579 0 56 571.00000 550.81579 3.53% - 0s 0 0 550.81579 0 64 571.00000 550.81579 3.53% - 0s 0 0 550.88321 0 67 571.00000 550.88321 3.52% - 0s 0 0 550.94768 0 64 571.00000 550.94768 3.51% - 0s 0 0 550.94768 0 68 571.00000 550.94768 3.51% - 0s 0 0 550.96967 0 67 571.00000 550.96967 3.51% - 0s 0 0 550.96978 0 71 571.00000 550.96978 3.51% - 0s 0 0 551.03234 0 68 571.00000 551.03234 3.50% - 0s 0 0 551.04227 0 72 571.00000 551.04227 3.50% - 0s 0 0 551.05838 0 71 571.00000 551.05838 3.49% - 0s 0 0 551.07639 0 74 571.00000 551.07639 3.49% - 0s 0 0 551.08192 0 71 571.00000 551.08192 3.49% - 0s 0 0 551.08722 0 70 571.00000 551.08722 3.49% - 0s 0 0 551.08828 0 76 571.00000 551.08828 3.49% - 0s 0 0 551.09024 0 77 571.00000 551.09024 3.49% - 0s 0 2 551.09350 0 77 571.00000 551.09350 3.49% - 1s * 45 38 38 569.0000000 551.98286 2.99% 11.1 1s * 76 56 24 565.0000000 552.52744 2.21% 11.9 1s * 100 58 19 562.0000000 552.88057 1.62% 11.3 1s * 221 108 13 561.0000000 553.95556 1.26% 12.0 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 2059 nodes (21298 simplex iterations) in 3.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (9, 23), (9, 27), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45), (45, 46)] Optimize a model with 283 rows, 1275 columns and 55545 nonzeros Presolve time: 0.03s Presolved: 283 rows, 1275 columns, 55545 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43831 2.58% - 0s 0 0 550.81579 0 64 564.00000 550.81579 2.34% - 0s 0 0 550.81579 0 56 564.00000 550.81579 2.34% - 0s 0 0 550.81579 0 64 564.00000 550.81579 2.34% - 0s 0 0 550.88337 0 67 564.00000 550.88337 2.33% - 0s 0 0 550.94768 0 64 564.00000 550.94768 2.31% - 0s 0 0 550.94768 0 68 564.00000 550.94768 2.31% - 0s 0 0 550.98028 0 68 564.00000 550.98028 2.31% - 0s 0 0 550.98028 0 72 564.00000 550.98028 2.31% - 0s 0 0 550.99680 0 67 564.00000 550.99680 2.31% - 0s H 0 0 562.0000000 550.99680 1.96% - 0s 0 0 550.99680 0 71 562.00000 550.99680 1.96% - 0s 0 2 551.38755 0 71 562.00000 551.38755 1.89% - 0s * 46 24 27 561.0000000 552.07089 1.59% 19.0 1s Cutting planes: Gomory: 9 MIR: 12 Zero half: 19 Explored 1739 nodes (18677 simplex iterations) in 3.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (10, 31), (10, 51), (11, 31), (11, 40), (14, 19), (14, 42), (16, 38), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 284 rows, 1275 columns and 55980 nonzeros Presolve time: 0.03s Presolved: 284 rows, 1275 columns, 55980 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43831 2.58% - 0s 0 0 550.81579 0 64 564.00000 550.81579 2.34% - 0s 0 0 550.81579 0 56 564.00000 550.81579 2.34% - 0s 0 0 550.81579 0 64 564.00000 550.81579 2.34% - 0s 0 0 550.88337 0 67 564.00000 550.88337 2.33% - 0s 0 0 550.94768 0 64 564.00000 550.94768 2.31% - 0s 0 0 550.94768 0 68 564.00000 550.94768 2.31% - 0s 0 0 550.98028 0 68 564.00000 550.98028 2.31% - 0s 0 0 550.98028 0 72 564.00000 550.98028 2.31% - 0s 0 0 550.99680 0 67 564.00000 550.99680 2.31% - 0s 0 0 550.99680 0 71 564.00000 550.99680 2.31% - 0s 0 0 551.00378 0 70 564.00000 551.00378 2.30% - 0s 0 0 551.00628 0 72 564.00000 551.00628 2.30% - 0s 0 0 551.01134 0 75 564.00000 551.01134 2.30% - 0s H 0 0 563.0000000 551.01134 2.13% - 0s 0 2 551.01324 0 75 563.00000 551.01324 2.13% - 0s * 47 37 20 562.0000000 552.42951 1.70% 13.0 0s H 276 99 561.0000000 554.26316 1.20% 12.5 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 1908 nodes (20321 simplex iterations) in 3.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (6, 16), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 285 rows, 1275 columns and 56133 nonzeros Presolve time: 0.03s Presolved: 285 rows, 1275 columns, 56133 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43831 2.24% - 0s 0 0 550.81579 0 64 562.00000 550.81579 1.99% - 0s 0 0 550.81579 0 56 562.00000 550.81579 1.99% - 0s 0 0 550.81579 0 64 562.00000 550.81579 1.99% - 0s 0 0 550.88337 0 67 562.00000 550.88337 1.98% - 0s 0 0 550.94768 0 64 562.00000 550.94768 1.97% - 0s 0 0 550.94768 0 68 562.00000 550.94768 1.97% - 0s 0 0 550.98518 0 68 562.00000 550.98518 1.96% - 0s 0 0 550.98518 0 72 562.00000 550.98518 1.96% - 0s 0 0 551.00553 0 67 562.00000 551.00553 1.96% - 0s 0 0 551.00553 0 71 562.00000 551.00553 1.96% - 0s 0 0 551.07186 0 65 562.00000 551.07186 1.94% - 0s 0 0 551.07186 0 69 562.00000 551.07186 1.94% - 0s 0 0 551.10519 0 65 562.00000 551.10519 1.94% - 0s 0 0 551.10731 0 69 562.00000 551.10731 1.94% - 0s 0 0 551.10939 0 69 562.00000 551.10939 1.94% - 0s 0 2 551.11544 0 69 562.00000 551.11544 1.94% - 0s * 338 156 16 561.0000000 554.49885 1.16% 10.9 1s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 2031 nodes (21262 simplex iterations) in 3.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (5, 19), (5, 18), (35, 51), (11, 40), (11, 31), (16, 46), (16, 18), (17, 51), (17, 22), (22, 30), (31, 35)] adding cut for [(38, 45), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (25, 44)] Optimize a model with 287 rows, 1275 columns and 56331 nonzeros Presolve time: 0.03s Presolved: 287 rows, 1275 columns, 56331 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.43831 2.41% - 0s 0 0 550.81579 0 64 563.00000 550.81579 2.16% - 0s 0 0 550.81579 0 56 563.00000 550.81579 2.16% - 0s 0 0 550.81579 0 64 563.00000 550.81579 2.16% - 0s 0 0 550.88396 0 67 563.00000 550.88396 2.15% - 0s 0 0 551.02098 0 68 563.00000 551.02098 2.13% - 0s 0 0 551.03697 0 62 563.00000 551.03697 2.12% - 0s 0 0 551.03697 0 66 563.00000 551.03697 2.12% - 0s 0 0 551.05731 0 64 563.00000 551.05731 2.12% - 0s 0 0 551.05740 0 69 563.00000 551.05740 2.12% - 0s 0 0 551.06164 0 70 563.00000 551.06164 2.12% - 0s 0 0 551.07473 0 73 563.00000 551.07473 2.12% - 0s 0 0 551.11472 0 68 563.00000 551.11472 2.11% - 0s 0 0 551.12468 0 64 563.00000 551.12468 2.11% - 0s 0 0 551.12468 0 68 563.00000 551.12468 2.11% - 0s 0 0 551.13502 0 63 563.00000 551.13502 2.11% - 0s 0 0 551.13537 0 70 563.00000 551.13537 2.11% - 0s 0 0 551.14206 0 69 563.00000 551.14206 2.11% - 0s 0 0 551.14222 0 74 563.00000 551.14222 2.11% - 0s 0 0 551.15194 0 71 563.00000 551.15194 2.10% - 0s 0 0 551.15194 0 75 563.00000 551.15194 2.10% - 0s 0 0 551.17529 0 66 563.00000 551.17529 2.10% - 0s 0 0 551.17529 0 70 563.00000 551.17529 2.10% - 0s 0 0 551.18128 0 70 563.00000 551.18128 2.10% - 0s H 0 0 562.0000000 551.18128 1.93% - 1s 0 2 551.18201 0 70 562.00000 551.18201 1.92% - 1s * 312 118 13 561.0000000 554.33201 1.19% 11.9 1s Cutting planes: Gomory: 1 MIR: 1 Zero half: 13 Explored 1843 nodes (19085 simplex iterations) in 3.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (17, 51), (35, 51), (25, 44), (21, 36), (21, 30), (22, 35), (22, 30), (23, 29), (24, 25), (24, 49), (4, 37), (4, 23), (29, 32)] adding cut for [(34, 40), (34, 46), (43, 45), (5, 18), (6, 50), (6, 38), (15, 26), (41, 42), (10, 50), (10, 31), (11, 40), (11, 31), (18, 38), (16, 46), (16, 45), (19, 26), (20, 43), (20, 41), (14, 19), (14, 42)] Optimize a model with 289 rows, 1275 columns and 56751 nonzeros Presolve time: 0.03s Presolved: 289 rows, 1275 columns, 56751 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 122 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start 0 0 550.81579 0 64 1672.00000 550.81579 67.1% - 0s 0 0 550.88357 0 67 1672.00000 550.88357 67.1% - 0s 0 0 551.01903 0 72 1672.00000 551.01903 67.0% - 0s 0 0 551.05134 0 64 1672.00000 551.05134 67.0% - 0s 0 0 551.07298 0 71 1672.00000 551.07298 67.0% - 0s 0 0 551.08195 0 65 1672.00000 551.08195 67.0% - 0s 0 0 551.08195 0 69 1672.00000 551.08195 67.0% - 0s 0 0 551.08724 0 68 1672.00000 551.08724 67.0% - 0s H 0 0 819.0000000 551.08724 32.7% - 0s H 0 0 588.0000000 551.08724 6.28% - 0s H 0 0 572.0000000 551.08724 3.66% - 0s 0 0 551.08724 0 72 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 56 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 62 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 68 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 72 572.00000 551.08724 3.66% - 0s 0 0 551.08939 0 74 572.00000 551.08939 3.66% - 0s H 0 0 569.0000000 551.08939 3.15% - 1s 0 2 551.09633 0 74 569.00000 551.09633 3.15% - 1s * 48 36 46 566.0000000 552.01685 2.47% 7.5 1s * 50 33 47 565.0000000 552.01685 2.30% 7.5 1s H 52 23 562.0000000 552.61932 1.67% 7.5 1s * 1029 195 25 561.0000000 555.60811 0.96% 10.8 2s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2115 nodes (20868 simplex iterations) in 3.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 50), (10, 39), (10, 50), (11, 40), (11, 31), (12, 39), (12, 17), (43, 45), (16, 45), (16, 46), (17, 22), (22, 51), (18, 38), (18, 43), (31, 35)] adding cut for [(2, 23), (3, 23), (3, 30), (36, 37), (9, 49), (9, 27), (21, 36), (21, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(20, 41), (20, 42), (14, 41), (14, 42)] Optimize a model with 292 rows, 1275 columns and 57006 nonzeros Presolve time: 0.03s Presolved: 292 rows, 1275 columns, 57006 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 571.0000000 549.43831 3.78% - 0s 0 0 550.81579 0 64 571.00000 550.81579 3.53% - 0s 0 0 550.81579 0 56 571.00000 550.81579 3.53% - 0s 0 0 550.85235 0 64 571.00000 550.85235 3.53% - 0s 0 0 551.04719 0 64 571.00000 551.04719 3.49% - 0s 0 0 551.08263 0 67 571.00000 551.08263 3.49% - 0s 0 0 551.08779 0 69 571.00000 551.08779 3.49% - 0s 0 0 551.08936 0 71 571.00000 551.08936 3.49% - 0s 0 0 551.09066 0 73 571.00000 551.09066 3.49% - 0s 0 0 551.10707 0 63 571.00000 551.10707 3.48% - 0s 0 0 551.11516 0 69 571.00000 551.11516 3.48% - 0s 0 0 551.14753 0 70 571.00000 551.14753 3.48% - 0s 0 0 551.14753 0 74 571.00000 551.14753 3.48% - 0s 0 0 551.15203 0 70 571.00000 551.15203 3.48% - 0s 0 0 551.15211 0 75 571.00000 551.15211 3.48% - 0s 0 0 551.18977 0 63 571.00000 551.18977 3.47% - 0s 0 0 551.19270 0 66 571.00000 551.19270 3.47% - 0s 0 0 551.19550 0 69 571.00000 551.19550 3.47% - 0s 0 0 551.20202 0 60 571.00000 551.20202 3.47% - 0s 0 0 551.20377 0 68 571.00000 551.20377 3.47% - 0s 0 0 551.20549 0 69 571.00000 551.20549 3.47% - 0s H 0 0 567.0000000 551.20549 2.79% - 1s H 0 0 562.0000000 551.20549 1.92% - 1s 0 2 551.20825 0 69 562.00000 551.20825 1.92% - 1s * 325 132 18 561.0000000 554.30233 1.19% 11.3 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 1776 nodes (18483 simplex iterations) in 3.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(36, 37), (6, 50), (9, 27), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] adding cut for [(5, 18), (5, 19), (41, 43), (43, 45), (45, 46), (15, 26), (16, 38), (16, 46), (18, 38), (20, 41), (20, 42), (14, 42), (14, 26)] adding cut for [(34, 40), (11, 40), (11, 34)] Optimize a model with 295 rows, 1275 columns and 57191 nonzeros Presolve time: 0.03s Presolved: 295 rows, 1275 columns, 57191 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 122 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start 0 0 550.81579 0 64 1672.00000 550.81579 67.1% - 0s 0 0 550.88357 0 67 1672.00000 550.88357 67.1% - 0s 0 0 551.01903 0 72 1672.00000 551.01903 67.0% - 0s 0 0 551.05134 0 64 1672.00000 551.05134 67.0% - 0s 0 0 551.07298 0 71 1672.00000 551.07298 67.0% - 0s 0 0 551.08195 0 65 1672.00000 551.08195 67.0% - 0s 0 0 551.08195 0 69 1672.00000 551.08195 67.0% - 0s 0 0 551.08724 0 68 1672.00000 551.08724 67.0% - 0s H 0 0 810.0000000 551.08724 32.0% - 0s H 0 0 588.0000000 551.08724 6.28% - 0s H 0 0 572.0000000 551.08724 3.66% - 0s 0 0 551.08724 0 72 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 56 572.00000 551.08724 3.66% - 0s 0 0 551.08724 0 62 572.00000 551.08724 3.66% - 0s 0 0 551.14301 0 63 572.00000 551.14301 3.65% - 0s 0 0 551.14301 0 67 572.00000 551.14301 3.65% - 0s 0 0 551.14805 0 68 572.00000 551.14805 3.65% - 0s 0 0 551.14805 0 72 572.00000 551.14805 3.65% - 0s 0 0 551.15220 0 69 572.00000 551.15220 3.64% - 0s 0 0 551.18411 0 72 572.00000 551.18411 3.64% - 0s 0 0 551.18987 0 66 572.00000 551.18987 3.64% - 0s 0 0 551.18987 0 70 572.00000 551.18987 3.64% - 0s 0 0 551.21312 0 67 572.00000 551.21312 3.63% - 0s 0 0 551.21633 0 72 572.00000 551.21633 3.63% - 0s 0 0 551.24101 0 69 572.00000 551.24101 3.63% - 0s 0 0 551.24101 0 73 572.00000 551.24101 3.63% - 1s 0 0 551.27730 0 66 572.00000 551.27730 3.62% - 1s 0 0 551.27979 0 69 572.00000 551.27979 3.62% - 1s 0 0 551.28123 0 73 572.00000 551.28123 3.62% - 1s 0 0 551.28586 0 73 572.00000 551.28586 3.62% - 1s H 0 0 565.0000000 551.28586 2.43% - 1s H 0 0 563.0000000 551.28586 2.08% - 1s 0 2 551.29207 0 73 563.00000 551.29207 2.08% - 1s * 27 19 21 562.0000000 551.93826 1.79% 11.8 1s * 1211 200 24 561.0000000 555.57143 0.97% 10.4 3s Cutting planes: Gomory: 1 MIR: 3 Zero half: 10 Explored 2612 nodes (25469 simplex iterations) in 4.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (5, 19), (10, 51), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (6, 50), (31, 35)] adding cut for [(7, 24), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (25, 44)] Optimize a model with 297 rows, 1275 columns and 57374 nonzeros Presolve time: 0.03s Presolved: 297 rows, 1275 columns, 57374 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 122 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43831 2.58% - 0s 0 0 550.84385 0 63 564.00000 550.84385 2.33% - 0s 0 0 550.84385 0 56 564.00000 550.84385 2.33% - 0s 0 0 550.84385 0 63 564.00000 550.84385 2.33% - 0s 0 0 550.99813 0 62 564.00000 550.99813 2.31% - 0s 0 0 550.99813 0 66 564.00000 550.99813 2.31% - 0s 0 0 551.03643 0 67 564.00000 551.03643 2.30% - 0s 0 0 551.04798 0 69 564.00000 551.04798 2.30% - 0s 0 0 551.13877 0 71 564.00000 551.13877 2.28% - 0s 0 0 551.16841 0 67 564.00000 551.16841 2.28% - 0s 0 0 551.16841 0 71 564.00000 551.16841 2.28% - 0s 0 0 551.18915 0 70 564.00000 551.18915 2.27% - 0s 0 0 551.19112 0 74 564.00000 551.19112 2.27% - 0s 0 0 551.23193 0 70 564.00000 551.23193 2.26% - 0s 0 0 551.23193 0 74 564.00000 551.23193 2.26% - 0s 0 0 551.23534 0 71 564.00000 551.23534 2.26% - 0s 0 0 551.23534 0 75 564.00000 551.23534 2.26% - 0s 0 0 551.25039 0 67 564.00000 551.25039 2.26% - 0s 0 0 551.30724 0 70 564.00000 551.30724 2.25% - 0s 0 0 551.31864 0 69 564.00000 551.31864 2.25% - 0s 0 0 551.32144 0 71 564.00000 551.32144 2.25% - 0s 0 0 551.32223 0 71 564.00000 551.32223 2.25% - 0s H 0 0 563.0000000 551.32223 2.07% - 1s 0 2 551.34463 0 71 563.00000 551.34463 2.07% - 1s * 565 227 12 561.0000000 554.85943 1.09% 10.9 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 2356 nodes (23519 simplex iterations) in 3.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (3, 12), (3, 21), (38, 45), (6, 39), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 39), (17, 22), (21, 30), (22, 30), (18, 38), (31, 35)] adding cut for [(2, 23), (8, 44), (8, 24), (9, 49), (9, 27), (15, 25), (23, 29), (24, 49), (25, 44), (27, 32), (29, 32)] adding cut for [(36, 37), (4, 36), (4, 37)] Optimize a model with 300 rows, 1275 columns and 57653 nonzeros Presolve time: 0.03s Presolved: 300 rows, 1275 columns, 57653 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 562.0000000 549.43831 2.24% - 0s 0 0 550.84385 0 63 562.00000 550.84385 1.99% - 0s 0 0 550.84385 0 56 562.00000 550.84385 1.99% - 0s 0 0 550.84385 0 63 562.00000 550.84385 1.99% - 0s 0 0 551.05898 0 62 562.00000 551.05898 1.95% - 0s 0 0 551.05898 0 66 562.00000 551.05898 1.95% - 0s 0 0 551.08522 0 66 562.00000 551.08522 1.94% - 0s 0 0 551.17545 0 68 562.00000 551.17545 1.93% - 0s 0 0 551.21299 0 71 562.00000 551.21299 1.92% - 0s 0 0 551.23108 0 67 562.00000 551.23108 1.92% - 0s 0 0 551.23108 0 71 562.00000 551.23108 1.92% - 0s 0 0 551.23492 0 70 562.00000 551.23492 1.92% - 0s 0 0 551.23936 0 73 562.00000 551.23936 1.91% - 0s 0 0 551.24333 0 75 562.00000 551.24333 1.91% - 0s 0 2 551.24512 0 75 562.00000 551.24512 1.91% - 0s * 44 29 15 561.0000000 552.73354 1.47% 14.5 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 2464 nodes (25456 simplex iterations) in 3.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (35, 51), (10, 39), (10, 31), (12, 17), (17, 39), (21, 36), (22, 51), (22, 30), (23, 29), (36, 37), (31, 35)] adding cut for [(5, 43), (8, 24), (8, 27), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (9, 32), (9, 49), (24, 44), (25, 44), (27, 32)] Optimize a model with 302 rows, 1275 columns and 57926 nonzeros Presolve time: 0.03s Presolved: 302 rows, 1275 columns, 57926 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start 0 0 550.84385 0 63 1672.00000 550.84385 67.1% - 0s 0 0 550.99813 0 62 1672.00000 550.99813 67.0% - 0s 0 0 550.99813 0 66 1672.00000 550.99813 67.0% - 0s 0 0 551.03643 0 67 1672.00000 551.03643 67.0% - 0s H 0 0 614.0000000 551.03643 10.3% - 0s H 0 0 579.0000000 551.03643 4.83% - 0s H 0 0 578.0000000 551.03643 4.66% - 0s 0 0 551.05274 0 68 578.00000 551.05274 4.66% - 0s 0 0 551.05274 0 56 578.00000 551.05274 4.66% - 0s 0 0 551.05274 0 68 578.00000 551.05274 4.66% - 0s 0 0 551.05906 0 72 578.00000 551.05906 4.66% - 0s 0 0 551.07439 0 69 578.00000 551.07439 4.66% - 0s 0 0 551.16560 0 69 578.00000 551.16560 4.64% - 0s 0 0 551.16560 0 73 578.00000 551.16560 4.64% - 0s 0 0 551.19360 0 68 578.00000 551.19360 4.64% - 0s 0 0 551.19360 0 72 578.00000 551.19360 4.64% - 0s 0 0 551.25045 0 73 578.00000 551.25045 4.63% - 0s 0 0 551.25260 0 70 578.00000 551.25260 4.63% - 0s 0 0 551.25350 0 75 578.00000 551.25350 4.63% - 0s 0 0 551.27307 0 65 578.00000 551.27307 4.62% - 0s 0 0 551.27708 0 75 578.00000 551.27708 4.62% - 0s 0 0 551.27770 0 76 578.00000 551.27770 4.62% - 1s H 0 0 568.0000000 551.27770 2.94% - 1s H 0 0 567.0000000 551.27770 2.77% - 1s 0 2 551.28839 0 76 567.00000 551.28839 2.77% - 1s * 133 85 34 564.0000000 552.59799 2.02% 9.4 1s H 136 62 562.0000000 552.59799 1.67% 9.2 1s * 189 86 15 561.0000000 553.10470 1.41% 9.9 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Mod-K: 1 Explored 2616 nodes (25316 simplex iterations) in 4.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] Optimize a model with 303 rows, 1275 columns and 58116 nonzeros Presolve time: 0.03s Presolved: 303 rows, 1275 columns, 58116 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.43831 2.58% - 0s 0 0 550.84385 0 63 564.00000 550.84385 2.33% - 0s 0 0 550.84385 0 56 564.00000 550.84385 2.33% - 0s 0 0 550.84385 0 63 564.00000 550.84385 2.33% - 0s 0 0 550.99813 0 62 564.00000 550.99813 2.31% - 0s 0 0 550.99813 0 66 564.00000 550.99813 2.31% - 0s 0 0 551.03643 0 67 564.00000 551.03643 2.30% - 0s 0 0 551.04798 0 69 564.00000 551.04798 2.30% - 0s 0 0 551.13877 0 71 564.00000 551.13877 2.28% - 0s 0 0 551.16841 0 67 564.00000 551.16841 2.28% - 0s 0 0 551.16841 0 71 564.00000 551.16841 2.28% - 0s 0 0 551.18915 0 70 564.00000 551.18915 2.27% - 0s 0 0 551.19112 0 74 564.00000 551.19112 2.27% - 0s 0 0 551.23193 0 70 564.00000 551.23193 2.26% - 0s 0 0 551.23193 0 74 564.00000 551.23193 2.26% - 0s 0 0 551.23534 0 71 564.00000 551.23534 2.26% - 0s 0 0 551.23534 0 75 564.00000 551.23534 2.26% - 0s 0 0 551.25039 0 67 564.00000 551.25039 2.26% - 0s 0 0 551.25039 0 71 564.00000 551.25039 2.26% - 0s 0 0 551.32013 0 70 564.00000 551.32013 2.25% - 0s 0 0 551.32341 0 72 564.00000 551.32341 2.25% - 0s 0 0 551.32566 0 70 564.00000 551.32566 2.25% - 0s 0 0 551.32566 0 74 564.00000 551.32566 2.25% - 0s 0 0 551.32865 0 77 564.00000 551.32865 2.25% - 0s 0 2 551.36624 0 77 564.00000 551.36624 2.24% - 1s * 34 22 31 563.0000000 551.71851 2.00% 10.0 1s * 242 125 13 562.0000000 553.80000 1.46% 11.2 1s * 571 234 15 561.0000000 555.00000 1.07% 10.6 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2358 nodes (23078 simplex iterations) in 3.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.610000000000e+02, best bound 5.610000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (6, 50), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (17, 51), (17, 39), (20, 41), (20, 42), (22, 51), (22, 35), (10, 39), (10, 50), (31, 35)] adding cut for [(2, 33), (2, 23), (3, 12), (3, 30), (4, 37), (4, 29), (21, 36), (21, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(8, 24), (8, 27), (9, 49), (9, 27), (15, 25), (15, 26), (19, 26), (24, 44), (25, 44)] Optimize a model with 306 rows, 1275 columns and 58437 nonzeros Presolve time: 0.03s Presolved: 306 rows, 1275 columns, 58437 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.494383e+02, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.43831 0 56 1672.00000 549.43831 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.43831 2.93% - 0s 0 0 550.72853 0 57 566.00000 550.72853 2.70% - 0s 0 0 550.72853 0 56 566.00000 550.72853 2.70% - 0s 0 0 550.72853 0 57 566.00000 550.72853 2.70% - 0s 0 0 550.90736 0 64 566.00000 550.90736 2.67% - 0s 0 0 551.00482 0 62 566.00000 551.00482 2.65% - 0s 0 0 551.00482 0 66 566.00000 551.00482 2.65% - 0s 0 0 551.07424 0 67 566.00000 551.07424 2.64% - 0s 0 0 551.07424 0 71 566.00000 551.07424 2.64% - 0s 0 0 551.13023 0 68 566.00000 551.13023 2.63% - 0s 0 0 551.13023 0 72 566.00000 551.13023 2.63% - 0s 0 0 551.18759 0 66 566.00000 551.18759 2.62% - 0s H 0 0 565.0000000 551.18759 2.44% - 0s 0 0 551.19023 0 73 565.00000 551.19023 2.44% - 0s 0 0 551.24704 0 72 565.00000 551.24704 2.43% - 0s 0 0 551.24704 0 76 565.00000 551.24704 2.43% - 0s 0 0 551.28098 0 73 565.00000 551.28098 2.43% - 0s 0 0 551.28327 0 77 565.00000 551.28327 2.43% - 0s 0 0 551.29317 0 70 565.00000 551.29317 2.43% - 0s 0 0 551.29342 0 74 565.00000 551.29342 2.43% - 0s 0 0 551.29388 0 72 565.00000 551.29388 2.43% - 0s 0 0 551.29388 0 76 565.00000 551.29388 2.43% - 0s 0 0 551.30625 0 72 565.00000 551.30625 2.42% - 0s 0 0 551.30799 0 75 565.00000 551.30799 2.42% - 0s H 0 0 563.0000000 551.30799 2.08% - 1s 0 2 551.33672 0 75 563.00000 551.33672 2.07% - 1s * 190 103 12 562.0000000 553.44598 1.52% 12.0 1s 3589 187 559.14286 24 45 562.00000 559.05882 0.52% 9.4 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 3988 nodes (36988 simplex iterations) in 5.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(5, 14), (5, 18), (6, 39), (10, 50), (10, 51), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (17, 30), (17, 51), (18, 38), (20, 41), (20, 43), (22, 30), (22, 35), (31, 35), (34, 40), (34, 46), (39, 50), (41, 42), (43, 45)] Optimize a model with 307 rows, 1275 columns and 58713 nonzeros Presolve time: 0.03s Presolved: 307 rows, 1275 columns, 58713 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.62535 2.72% - 0s 0 0 550.89540 0 62 565.00000 550.89540 2.50% - 0s 0 0 550.89540 0 56 565.00000 550.89540 2.50% - 0s 0 0 550.96413 0 66 565.00000 550.96413 2.48% - 0s 0 0 551.08118 0 64 565.00000 551.08118 2.46% - 0s 0 0 551.17046 0 63 565.00000 551.17046 2.45% - 0s 0 0 551.17046 0 67 565.00000 551.17046 2.45% - 0s 0 0 551.18622 0 62 565.00000 551.18622 2.44% - 0s 0 0 551.18622 0 68 565.00000 551.18622 2.44% - 0s 0 0 551.19011 0 67 565.00000 551.19011 2.44% - 0s 0 0 551.19011 0 69 565.00000 551.19011 2.44% - 0s 0 0 551.19647 0 64 565.00000 551.19647 2.44% - 0s 0 0 551.19647 0 69 565.00000 551.19647 2.44% - 0s 0 0 551.22017 0 64 565.00000 551.22017 2.44% - 0s 0 0 551.23298 0 70 565.00000 551.23298 2.44% - 0s 0 0 551.24307 0 67 565.00000 551.24307 2.43% - 0s 0 0 551.24356 0 67 565.00000 551.24356 2.43% - 0s 0 0 551.24421 0 71 565.00000 551.24421 2.43% - 0s 0 2 551.25663 0 71 565.00000 551.25663 2.43% - 0s H 27 23 564.0000000 552.20000 2.09% 8.9 1s H 54 31 562.0000000 552.85438 1.63% 9.1 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 3245 nodes (30762 simplex iterations) in 4.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 42), (5, 18), (41, 43), (43, 45), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (6, 50), (31, 50)] adding cut for [(35, 51), (36, 37), (9, 49), (9, 27), (10, 39), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(7, 24), (8, 44), (8, 24), (14, 19), (14, 26), (15, 25), (15, 26), (25, 44)] Optimize a model with 310 rows, 1275 columns and 58974 nonzeros Presolve time: 0.03s Presolved: 310 rows, 1275 columns, 58974 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.62535 3.06% - 0s 0 0 550.89540 0 62 567.00000 550.89540 2.84% - 0s 0 0 550.89540 0 56 567.00000 550.89540 2.84% - 0s 0 0 550.96413 0 66 567.00000 550.96413 2.83% - 0s 0 0 551.08118 0 64 567.00000 551.08118 2.81% - 0s 0 0 551.17046 0 63 567.00000 551.17046 2.79% - 0s 0 0 551.17046 0 67 567.00000 551.17046 2.79% - 0s 0 0 551.18622 0 63 567.00000 551.18622 2.79% - 0s 0 0 551.18622 0 67 567.00000 551.18622 2.79% - 0s 0 0 551.19011 0 68 567.00000 551.19011 2.79% - 0s 0 0 551.19647 0 65 567.00000 551.19647 2.79% - 0s 0 0 551.19647 0 69 567.00000 551.19647 2.79% - 0s 0 0 551.22017 0 64 567.00000 551.22017 2.78% - 0s 0 0 551.23298 0 70 567.00000 551.23298 2.78% - 0s 0 0 551.24307 0 67 567.00000 551.24307 2.78% - 0s 0 0 551.24356 0 67 567.00000 551.24356 2.78% - 0s 0 0 551.24421 0 71 567.00000 551.24421 2.78% - 0s H 0 0 566.0000000 551.24421 2.61% - 0s H 0 0 562.0000000 551.24421 1.91% - 1s 0 2 551.25663 0 71 562.00000 551.25663 1.91% - 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 2757 nodes (26704 simplex iterations) in 3.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 43), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 39), (12, 39), (14, 26), (14, 42), (15, 25), (15, 26), (17, 22), (17, 51), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37), (41, 43)] Optimize a model with 311 rows, 1275 columns and 59352 nonzeros Presolve time: 0.03s Presolved: 311 rows, 1275 columns, 59352 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 570.0000000 549.62535 3.57% - 0s 0 0 550.89540 0 62 570.00000 550.89540 3.35% - 0s 0 0 550.89540 0 56 570.00000 550.89540 3.35% - 0s 0 0 551.00927 0 69 570.00000 551.00927 3.33% - 0s 0 0 551.13670 0 63 570.00000 551.13670 3.31% - 0s 0 0 551.14556 0 66 570.00000 551.14556 3.31% - 0s 0 0 551.15185 0 68 570.00000 551.15185 3.31% - 0s 0 0 551.15185 0 70 570.00000 551.15185 3.31% - 0s 0 0 551.23513 0 65 570.00000 551.23513 3.29% - 0s 0 0 551.23513 0 69 570.00000 551.23513 3.29% - 0s 0 0 551.27405 0 63 570.00000 551.27405 3.29% - 0s 0 0 551.27504 0 70 570.00000 551.27504 3.29% - 0s 0 0 551.29041 0 71 570.00000 551.29041 3.28% - 0s 0 0 551.31789 0 76 570.00000 551.31789 3.28% - 0s 0 0 551.32873 0 77 570.00000 551.32873 3.28% - 0s 0 0 551.33156 0 80 570.00000 551.33156 3.28% - 0s 0 0 551.33302 0 76 570.00000 551.33302 3.27% - 0s 0 0 551.36049 0 68 570.00000 551.36049 3.27% - 0s 0 0 551.36099 0 73 570.00000 551.36099 3.27% - 0s 0 0 551.38222 0 72 570.00000 551.38222 3.27% - 0s H 0 0 565.0000000 551.38222 2.41% - 0s 0 0 551.39240 0 65 565.00000 551.39240 2.41% - 0s 0 2 551.82134 0 64 565.00000 551.82134 2.33% - 1s H 1 2 564.0000000 551.82134 2.16% 2.0 1s H 79 42 562.0000000 552.93878 1.61% 17.9 2s 2413 423 560.33333 24 40 562.00000 557.91304 0.73% 10.3 5s Cutting planes: Gomory: 7 MIR: 9 Zero half: 16 Explored 4111 nodes (40381 simplex iterations) in 6.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(19, 26), (2, 23), (3, 17), (3, 23), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (15, 25), (15, 26), (17, 51), (25, 44), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (29, 32)] adding cut for [(16, 45), (16, 46), (34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (5, 48), (6, 39), (41, 43), (43, 45), (14, 42), (20, 41), (20, 42), (10, 39), (10, 35), (31, 50), (31, 35)] Optimize a model with 313 rows, 1275 columns and 59733 nonzeros Presolve time: 0.03s Presolved: 313 rows, 1275 columns, 59733 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.62535 3.06% - 0s 0 0 550.89540 0 62 567.00000 550.89540 2.84% - 0s 0 0 550.89540 0 56 567.00000 550.89540 2.84% - 0s 0 0 550.96413 0 66 567.00000 550.96413 2.83% - 0s 0 0 551.08118 0 64 567.00000 551.08118 2.81% - 0s 0 0 551.17046 0 63 567.00000 551.17046 2.79% - 0s 0 0 551.17046 0 67 567.00000 551.17046 2.79% - 0s 0 0 551.18622 0 63 567.00000 551.18622 2.79% - 0s 0 0 551.18622 0 67 567.00000 551.18622 2.79% - 0s 0 0 551.19011 0 68 567.00000 551.19011 2.79% - 0s 0 0 551.19647 0 65 567.00000 551.19647 2.79% - 0s 0 0 551.19647 0 69 567.00000 551.19647 2.79% - 0s 0 0 551.22017 0 63 567.00000 551.22017 2.78% - 0s 0 0 551.23298 0 69 567.00000 551.23298 2.78% - 0s H 0 0 564.0000000 551.23298 2.26% - 0s 0 2 551.26449 0 69 564.00000 551.26449 2.26% - 0s * 42 24 35 563.0000000 552.20000 1.92% 9.9 1s * 220 128 21 562.0000000 553.96364 1.43% 10.2 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 6 Explored 3815 nodes (34871 simplex iterations) in 4.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (6, 39), (6, 50), (9, 27), (9, 49), (10, 31), (10, 39), (11, 40), (11, 50), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 314 rows, 1275 columns and 60058 nonzeros Presolve time: 0.03s Presolved: 314 rows, 1275 columns, 60058 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.62535 3.06% - 0s 0 0 550.89540 0 62 567.00000 550.89540 2.84% - 0s 0 0 550.89540 0 56 567.00000 550.89540 2.84% - 0s 0 0 550.96413 0 66 567.00000 550.96413 2.83% - 0s 0 0 551.08118 0 64 567.00000 551.08118 2.81% - 0s 0 0 551.17046 0 63 567.00000 551.17046 2.79% - 0s 0 0 551.17046 0 67 567.00000 551.17046 2.79% - 0s 0 0 551.18622 0 62 567.00000 551.18622 2.79% - 0s 0 0 551.18622 0 68 567.00000 551.18622 2.79% - 0s 0 0 551.19011 0 67 567.00000 551.19011 2.79% - 0s 0 0 551.19011 0 69 567.00000 551.19011 2.79% - 0s 0 0 551.19647 0 64 567.00000 551.19647 2.79% - 0s 0 0 551.19647 0 69 567.00000 551.19647 2.79% - 0s 0 0 551.22017 0 63 567.00000 551.22017 2.78% - 0s 0 0 551.23298 0 69 567.00000 551.23298 2.78% - 0s H 0 0 565.0000000 551.23298 2.44% - 0s 0 2 551.26449 0 69 565.00000 551.26449 2.43% - 1s H 27 24 564.0000000 552.20000 2.09% 11.0 1s * 257 137 11 563.0000000 553.98182 1.60% 9.7 1s * 335 154 8 562.0000000 554.39063 1.35% 10.1 1s 3832 56 560.60989 25 54 562.00000 560.18182 0.32% 9.4 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 6 Explored 3915 nodes (36948 simplex iterations) in 5.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (11, 40), (11, 50), (14, 19), (14, 42), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (19, 26), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 315 rows, 1275 columns and 60688 nonzeros Presolve time: 0.03s Presolved: 315 rows, 1275 columns, 60688 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 575.0000000 549.62535 4.41% - 0s 0 0 550.89540 0 62 575.00000 550.89540 4.19% - 0s 0 0 550.89540 0 56 575.00000 550.89540 4.19% - 0s 0 0 550.96413 0 66 575.00000 550.96413 4.18% - 0s 0 0 551.08118 0 64 575.00000 551.08118 4.16% - 0s 0 0 551.17046 0 63 575.00000 551.17046 4.14% - 0s 0 0 551.17046 0 67 575.00000 551.17046 4.14% - 0s 0 0 551.18622 0 63 575.00000 551.18622 4.14% - 0s 0 0 551.18622 0 67 575.00000 551.18622 4.14% - 0s 0 0 551.19011 0 67 575.00000 551.19011 4.14% - 0s 0 0 551.19011 0 69 575.00000 551.19011 4.14% - 0s 0 0 551.19647 0 64 575.00000 551.19647 4.14% - 0s 0 0 551.19647 0 69 575.00000 551.19647 4.14% - 0s 0 0 551.22017 0 63 575.00000 551.22017 4.14% - 0s 0 0 551.22928 0 73 575.00000 551.22928 4.13% - 0s 0 0 551.24764 0 69 575.00000 551.24764 4.13% - 0s 0 0 551.24874 0 70 575.00000 551.24874 4.13% - 0s 0 0 551.26222 0 72 575.00000 551.26222 4.13% - 0s 0 0 551.27477 0 69 575.00000 551.27477 4.13% - 0s 0 0 551.32289 0 70 575.00000 551.32289 4.12% - 0s 0 0 551.33046 0 77 575.00000 551.33046 4.12% - 0s 0 0 551.33046 0 74 575.00000 551.33046 4.12% - 0s 0 0 551.33046 0 78 575.00000 551.33046 4.12% - 0s 0 0 551.33372 0 75 575.00000 551.33372 4.12% - 0s 0 0 551.33372 0 78 575.00000 551.33372 4.12% - 1s 0 0 551.33372 0 78 575.00000 551.33372 4.12% - 1s H 0 0 566.0000000 551.33372 2.59% - 1s H 0 0 563.0000000 551.33372 2.07% - 1s 0 2 551.34139 0 78 563.00000 551.34139 2.07% - 1s * 435 196 20 562.0000000 554.70909 1.30% 11.6 2s 3242 230 560.96970 28 50 562.00000 558.80000 0.57% 9.9 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 3755 nodes (36193 simplex iterations) in 5.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 45), (9, 49), (9, 27), (16, 45), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 40)] adding cut for [(5, 48), (5, 18), (7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (18, 43), (20, 41), (20, 43), (25, 44)] Optimize a model with 317 rows, 1275 columns and 60964 nonzeros Presolve time: 0.03s Presolved: 317 rows, 1275 columns, 60964 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.62535 2.89% - 0s 0 0 550.89540 0 62 566.00000 550.89540 2.67% - 0s 0 0 550.89540 0 56 566.00000 550.89540 2.67% - 0s 0 0 550.96413 0 66 566.00000 550.96413 2.66% - 0s 0 0 551.13554 0 61 566.00000 551.13554 2.63% - 0s 0 0 551.14629 0 67 566.00000 551.14629 2.62% - 0s 0 0 551.14629 0 65 566.00000 551.14629 2.62% - 0s 0 0 551.14629 0 69 566.00000 551.14629 2.62% - 0s 0 0 551.17196 0 64 566.00000 551.17196 2.62% - 0s 0 0 551.17196 0 68 566.00000 551.17196 2.62% - 0s 0 0 551.17613 0 65 566.00000 551.17613 2.62% - 0s 0 0 551.17613 0 69 566.00000 551.17613 2.62% - 0s H 0 0 563.0000000 551.17613 2.10% - 0s 0 2 551.17743 0 69 563.00000 551.17743 2.10% - 0s * 113 71 22 562.0000000 553.02246 1.60% 11.0 1s Cutting planes: Gomory: 4 MIR: 3 Zero half: 5 Explored 3181 nodes (31100 simplex iterations) in 4.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 27), (10, 51), (10, 31), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 318 rows, 1275 columns and 61117 nonzeros Presolve time: 0.03s Presolved: 318 rows, 1275 columns, 61117 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.62535 2.72% - 0s 0 0 550.89540 0 62 565.00000 550.89540 2.50% - 0s 0 0 550.89540 0 56 565.00000 550.89540 2.50% - 0s 0 0 550.96413 0 66 565.00000 550.96413 2.48% - 0s 0 0 551.13554 0 61 565.00000 551.13554 2.45% - 0s 0 0 551.14556 0 65 565.00000 551.14556 2.45% - 0s 0 0 551.14858 0 64 565.00000 551.14858 2.45% - 0s 0 0 551.14858 0 68 565.00000 551.14858 2.45% - 0s 0 0 551.16598 0 64 565.00000 551.16598 2.45% - 0s 0 0 551.16619 0 69 565.00000 551.16619 2.45% - 0s 0 0 551.18033 0 64 565.00000 551.18033 2.45% - 0s 0 0 551.18404 0 70 565.00000 551.18404 2.45% - 0s 0 0 551.22710 0 65 565.00000 551.22710 2.44% - 0s 0 0 551.22712 0 71 565.00000 551.22712 2.44% - 0s 0 0 551.24069 0 71 565.00000 551.24069 2.44% - 0s 0 0 551.24245 0 70 565.00000 551.24245 2.43% - 0s 0 0 551.25591 0 67 565.00000 551.25591 2.43% - 0s 0 0 551.25591 0 71 565.00000 551.25591 2.43% - 0s 0 0 551.27375 0 67 565.00000 551.27375 2.43% - 0s 0 0 551.28149 0 73 565.00000 551.28149 2.43% - 0s 0 0 551.30445 0 70 565.00000 551.30445 2.42% - 0s 0 0 551.31720 0 73 565.00000 551.31720 2.42% - 0s 0 0 551.31928 0 74 565.00000 551.31928 2.42% - 0s 0 0 551.36511 0 69 565.00000 551.36511 2.41% - 0s 0 0 551.36523 0 71 565.00000 551.36523 2.41% - 0s 0 0 551.37268 0 65 565.00000 551.37268 2.41% - 0s 0 0 551.37268 0 69 565.00000 551.37268 2.41% - 0s 0 0 551.37509 0 72 565.00000 551.37509 2.41% - 0s 0 0 551.37509 0 76 565.00000 551.37509 2.41% - 0s 0 0 551.37509 0 76 565.00000 551.37509 2.41% - 1s 0 2 551.39315 0 76 565.00000 551.39315 2.41% - 1s * 30 22 24 562.0000000 551.81211 1.81% 11.6 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 3262 nodes (31713 simplex iterations) in 4.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 43), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 43)] Optimize a model with 319 rows, 1275 columns and 61712 nonzeros Presolve time: 0.03s Presolved: 319 rows, 1275 columns, 61712 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 578.0000000 549.62535 4.91% - 0s 0 0 550.89540 0 62 578.00000 550.89540 4.69% - 0s 0 0 550.89540 0 56 578.00000 550.89540 4.69% - 0s 0 0 550.96413 0 66 578.00000 550.96413 4.68% - 0s 0 0 551.08118 0 64 578.00000 551.08118 4.66% - 0s 0 0 551.17046 0 63 578.00000 551.17046 4.64% - 0s 0 0 551.17046 0 67 578.00000 551.17046 4.64% - 0s 0 0 551.18622 0 63 578.00000 551.18622 4.64% - 0s 0 0 551.18622 0 67 578.00000 551.18622 4.64% - 0s 0 0 551.19011 0 67 578.00000 551.19011 4.64% - 0s 0 0 551.19011 0 69 578.00000 551.19011 4.64% - 0s 0 0 551.19647 0 64 578.00000 551.19647 4.64% - 0s 0 0 551.19647 0 69 578.00000 551.19647 4.64% - 0s 0 0 551.21566 0 65 578.00000 551.21566 4.63% - 0s 0 0 551.22384 0 71 578.00000 551.22384 4.63% - 0s 0 0 551.23309 0 67 578.00000 551.23309 4.63% - 0s 0 0 551.23309 0 71 578.00000 551.23309 4.63% - 0s 0 0 551.25989 0 68 578.00000 551.25989 4.63% - 0s 0 0 551.26104 0 71 578.00000 551.26104 4.63% - 0s 0 0 551.27013 0 73 578.00000 551.27013 4.62% - 0s 0 0 551.28648 0 73 578.00000 551.28648 4.62% - 0s 0 0 551.29077 0 75 578.00000 551.29077 4.62% - 0s 0 0 551.30013 0 77 578.00000 551.30013 4.62% - 1s 0 0 551.30598 0 70 578.00000 551.30598 4.62% - 1s 0 0 551.30754 0 74 578.00000 551.30754 4.62% - 1s H 0 0 577.0000000 551.30754 4.45% - 1s H 0 0 570.0000000 551.30754 3.28% - 1s H 0 0 564.0000000 551.30754 2.25% - 1s 0 2 551.30854 0 74 564.00000 551.30854 2.25% - 1s * 106 76 23 563.0000000 552.84372 1.80% 10.5 1s * 339 156 10 562.0000000 554.59159 1.32% 11.4 2s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 2556 nodes (25181 simplex iterations) in 4.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(6, 39), (10, 50), (10, 51), (11, 31), (11, 40), (14, 19), (14, 42), (15, 26), (16, 38), (16, 46), (18, 38), (18, 45), (19, 26), (20, 41), (20, 42), (31, 35), (34, 40), (34, 46), (35, 51), (39, 50), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (12, 17), (17, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 321 rows, 1275 columns and 62043 nonzeros Presolve time: 0.03s Presolved: 321 rows, 1275 columns, 62043 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start 0 0 550.89540 0 62 1672.00000 550.89540 67.1% - 0s 0 0 550.98552 0 61 1672.00000 550.98552 67.0% - 0s 0 0 551.06577 0 62 1672.00000 551.06577 67.0% - 0s 0 0 551.09946 0 63 1672.00000 551.09946 67.0% - 0s 0 0 551.09946 0 67 1672.00000 551.09946 67.0% - 0s 0 0 551.09946 0 64 1672.00000 551.09946 67.0% - 0s H 0 0 768.0000000 551.09946 28.2% - 0s H 0 0 582.0000000 551.09946 5.31% - 0s H 0 0 577.0000000 551.09946 4.49% - 0s 0 0 551.09946 0 67 577.00000 551.09946 4.49% - 0s 0 0 551.09946 0 56 577.00000 551.09946 4.49% - 0s 0 0 551.09946 0 69 577.00000 551.09946 4.49% - 0s 0 0 551.13576 0 67 577.00000 551.13576 4.48% - 0s 0 0 551.14269 0 69 577.00000 551.14269 4.48% - 0s 0 0 551.21760 0 68 577.00000 551.21760 4.47% - 0s 0 0 551.21760 0 72 577.00000 551.21760 4.47% - 0s 0 0 551.22079 0 71 577.00000 551.22079 4.47% - 0s 0 0 551.23393 0 67 577.00000 551.23393 4.47% - 0s 0 0 551.24233 0 72 577.00000 551.24233 4.46% - 0s 0 0 551.25549 0 66 577.00000 551.25549 4.46% - 0s 0 0 551.25660 0 72 577.00000 551.25660 4.46% - 0s 0 0 551.26257 0 70 577.00000 551.26257 4.46% - 0s 0 0 551.26331 0 68 577.00000 551.26331 4.46% - 1s 0 0 551.26331 0 72 577.00000 551.26331 4.46% - 1s 0 0 551.27914 0 74 577.00000 551.27914 4.46% - 1s 0 0 551.28878 0 77 577.00000 551.28878 4.46% - 1s 0 0 551.29752 0 72 577.00000 551.29752 4.45% - 1s 0 0 551.31131 0 79 577.00000 551.31131 4.45% - 1s 0 0 551.32519 0 69 577.00000 551.32519 4.45% - 1s 0 0 551.32589 0 74 577.00000 551.32589 4.45% - 1s 0 0 551.33507 0 77 577.00000 551.33507 4.45% - 1s 0 0 551.34429 0 76 577.00000 551.34429 4.45% - 1s 0 0 551.36112 0 80 577.00000 551.36112 4.44% - 1s 0 0 551.36112 0 81 577.00000 551.36112 4.44% - 1s 0 0 551.36683 0 75 577.00000 551.36683 4.44% - 1s 0 0 551.36683 0 79 577.00000 551.36683 4.44% - 1s 0 0 551.36683 0 79 577.00000 551.36683 4.44% - 1s H 0 0 574.0000000 551.36683 3.94% - 1s 0 2 551.41456 0 79 574.00000 551.41456 3.93% - 2s H 30 25 563.0000000 552.17345 1.92% 11.9 2s * 180 112 26 562.0000000 553.08331 1.59% 10.7 2s 2340 173 cutoff 18 562.00000 558.75000 0.58% 10.2 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 11 Explored 2770 nodes (27399 simplex iterations) in 5.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(8, 24), (8, 44), (11, 31), (11, 40), (12, 39), (14, 26), (14, 42), (16, 38), (16, 46), (17, 35), (17, 39), (20, 41), (20, 42), (24, 49), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (38, 45), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 50), (9, 23), (9, 27), (10, 50), (10, 51), (21, 36), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 323 rows, 1275 columns and 62432 nonzeros Presolve time: 0.03s Presolved: 323 rows, 1275 columns, 62432 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.62535 2.55% - 0s 0 0 550.89540 0 62 564.00000 550.89540 2.32% - 0s 0 0 550.89540 0 56 564.00000 550.89540 2.32% - 0s 0 0 550.89540 0 62 564.00000 550.89540 2.32% - 0s 0 0 550.98552 0 61 564.00000 550.98552 2.31% - 0s 0 0 551.06577 0 62 564.00000 551.06577 2.29% - 0s 0 0 551.09946 0 63 564.00000 551.09946 2.29% - 0s 0 0 551.09946 0 69 564.00000 551.09946 2.29% - 0s 0 0 551.10628 0 66 564.00000 551.10628 2.29% - 0s 0 0 551.16948 0 65 564.00000 551.16948 2.27% - 0s 0 0 551.17948 0 64 564.00000 551.17948 2.27% - 0s 0 0 551.17981 0 69 564.00000 551.17981 2.27% - 0s 0 0 551.22922 0 69 564.00000 551.22922 2.26% - 0s 0 0 551.23641 0 68 564.00000 551.23641 2.26% - 0s 0 2 551.25919 0 68 564.00000 551.25919 2.26% - 0s * 27 18 24 563.0000000 552.20321 1.92% 11.3 0s H 600 288 562.0000000 554.96491 1.25% 9.3 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 4224 nodes (38710 simplex iterations) in 4.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (17, 51), (17, 22), (9, 49), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(8, 44), (8, 24), (41, 42), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (18, 45), (20, 41), (20, 43), (25, 44)] Optimize a model with 325 rows, 1275 columns and 62720 nonzeros Presolve time: 0.04s Presolved: 325 rows, 1275 columns, 62720 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.62535 2.55% - 0s 0 0 550.89540 0 62 564.00000 550.89540 2.32% - 0s 0 0 550.89540 0 56 564.00000 550.89540 2.32% - 0s 0 0 550.89540 0 62 564.00000 550.89540 2.32% - 0s 0 0 550.98552 0 61 564.00000 550.98552 2.31% - 0s 0 0 551.06577 0 62 564.00000 551.06577 2.29% - 0s 0 0 551.09946 0 63 564.00000 551.09946 2.29% - 0s 0 0 551.09946 0 69 564.00000 551.09946 2.29% - 0s 0 0 551.10628 0 66 564.00000 551.10628 2.29% - 0s 0 0 551.16948 0 65 564.00000 551.16948 2.27% - 0s 0 0 551.17948 0 64 564.00000 551.17948 2.27% - 0s 0 0 551.17981 0 68 564.00000 551.17981 2.27% - 0s 0 0 551.18533 0 66 564.00000 551.18533 2.27% - 0s 0 0 551.18578 0 71 564.00000 551.18578 2.27% - 0s 0 0 551.26440 0 66 564.00000 551.26440 2.26% - 0s 0 0 551.26440 0 70 564.00000 551.26440 2.26% - 0s 0 0 551.27082 0 65 564.00000 551.27082 2.26% - 0s 0 0 551.27082 0 69 564.00000 551.27082 2.26% - 0s 0 0 551.27191 0 67 564.00000 551.27191 2.26% - 0s 0 0 551.27191 0 71 564.00000 551.27191 2.26% - 0s 0 0 551.27514 0 67 564.00000 551.27514 2.26% - 0s 0 0 551.27514 0 71 564.00000 551.27514 2.26% - 0s 0 2 551.27603 0 71 564.00000 551.27603 2.26% - 1s H 153 89 563.0000000 553.16924 1.75% 11.5 1s * 597 230 14 562.0000000 555.20690 1.21% 10.4 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 2684 nodes (26901 simplex iterations) in 4.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(6, 50), (10, 39), (10, 50), (11, 31), (11, 40), (14, 26), (14, 42), (16, 45), (16, 46), (17, 39), (17, 51), (19, 26), (20, 41), (20, 43), (22, 35), (22, 51), (31, 35), (34, 40), (34, 46), (41, 42), (43, 45)] adding cut for [(2, 23), (3, 12), (3, 30), (4, 37), (4, 29), (21, 36), (21, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 327 rows, 1275 columns and 63006 nonzeros Presolve time: 0.03s Presolved: 327 rows, 1275 columns, 63006 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 117 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.62535 2.89% - 0s 0 0 550.89540 0 62 566.00000 550.89540 2.67% - 0s 0 0 550.89540 0 56 566.00000 550.89540 2.67% - 0s 0 0 550.96413 0 66 566.00000 550.96413 2.66% - 0s 0 0 551.08118 0 64 566.00000 551.08118 2.64% - 0s 0 0 551.17046 0 63 566.00000 551.17046 2.62% - 0s 0 0 551.17046 0 67 566.00000 551.17046 2.62% - 0s 0 0 551.18622 0 63 566.00000 551.18622 2.62% - 0s H 0 0 564.0000000 551.18622 2.27% - 0s 0 0 551.18622 0 67 564.00000 551.18622 2.27% - 0s 0 0 551.19011 0 67 564.00000 551.19011 2.27% - 0s 0 0 551.19011 0 69 564.00000 551.19011 2.27% - 0s 0 0 551.19647 0 64 564.00000 551.19647 2.27% - 0s 0 0 551.19647 0 69 564.00000 551.19647 2.27% - 0s 0 0 551.22017 0 63 564.00000 551.22017 2.27% - 0s 0 0 551.23362 0 69 564.00000 551.23362 2.26% - 0s 0 0 551.23366 0 72 564.00000 551.23366 2.26% - 0s 0 2 551.23811 0 72 564.00000 551.23811 2.26% - 1s H 40 24 563.0000000 552.74212 1.82% 10.3 1s * 514 228 13 562.0000000 555.22500 1.21% 10.7 1s 3700 63 560.66667 19 41 562.00000 560.10000 0.34% 9.8 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 7 Explored 3799 nodes (37108 simplex iterations) in 5.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (7, 15), (8, 24), (8, 27), (11, 31), (11, 40), (15, 26), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 328 rows, 1275 columns and 63331 nonzeros Presolve time: 0.04s Presolved: 328 rows, 1275 columns, 63331 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496253e+02, 117 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.62535 0 56 1672.00000 549.62535 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.62535 3.23% - 0s 0 0 550.89540 0 62 568.00000 550.89540 3.01% - 0s 0 0 550.89540 0 56 568.00000 550.89540 3.01% - 0s 0 0 550.96413 0 66 568.00000 550.96413 3.00% - 0s 0 0 551.13554 0 61 568.00000 551.13554 2.97% - 0s 0 0 551.14629 0 67 568.00000 551.14629 2.97% - 0s 0 0 551.14629 0 65 568.00000 551.14629 2.97% - 0s 0 0 551.14629 0 69 568.00000 551.14629 2.97% - 0s 0 0 551.17196 0 64 568.00000 551.17196 2.96% - 0s 0 0 551.17196 0 68 568.00000 551.17196 2.96% - 0s 0 0 551.17613 0 65 568.00000 551.17613 2.96% - 0s 0 0 551.17613 0 69 568.00000 551.17613 2.96% - 0s 0 0 551.22690 0 67 568.00000 551.22690 2.95% - 0s 0 0 551.22690 0 71 568.00000 551.22690 2.95% - 0s 0 0 551.25658 0 67 568.00000 551.25658 2.95% - 0s 0 0 551.25658 0 72 568.00000 551.25658 2.95% - 0s 0 0 551.28604 0 65 568.00000 551.28604 2.94% - 0s 0 0 551.28604 0 67 568.00000 551.28604 2.94% - 0s 0 0 551.28604 0 69 568.00000 551.28604 2.94% - 0s 0 0 551.28604 0 70 568.00000 551.28604 2.94% - 0s 0 0 551.28604 0 69 568.00000 551.28604 2.94% - 1s H 0 0 563.0000000 551.28604 2.08% - 1s 0 2 551.31672 0 69 563.00000 551.31672 2.08% - 1s * 207 99 13 562.0000000 553.71930 1.47% 11.5 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 6 Explored 2981 nodes (29395 simplex iterations) in 4.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (6, 39), (6, 50), (9, 23), (9, 27), (10, 39), (10, 51), (11, 40), (11, 50), (12, 17), (17, 51), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 40), (36, 37)] adding cut for [(34, 46), (41, 43), (43, 45), (45, 46), (14, 42), (14, 19), (16, 34), (16, 38), (18, 38), (20, 41), (20, 42)] Optimize a model with 330 rows, 1275 columns and 63673 nonzeros Presolve time: 0.04s Presolved: 330 rows, 1275 columns, 63673 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 571.0000000 549.64815 3.74% - 0s 0 0 551.27860 0 68 571.00000 551.27860 3.45% - 0s 0 0 551.27860 0 57 571.00000 551.27860 3.45% - 0s 0 0 551.27860 0 68 571.00000 551.27860 3.45% - 0s 0 0 551.37605 0 73 571.00000 551.37605 3.44% - 0s 0 0 551.42352 0 69 571.00000 551.42352 3.43% - 0s 0 0 551.43217 0 75 571.00000 551.43217 3.43% - 0s 0 0 551.46553 0 72 571.00000 551.46553 3.42% - 0s 0 0 551.48699 0 72 571.00000 551.48699 3.42% - 0s 0 0 551.48731 0 73 571.00000 551.48731 3.42% - 0s 0 0 551.49299 0 74 571.00000 551.49299 3.42% - 0s H 0 0 568.0000000 551.49299 2.91% - 0s H 0 0 565.0000000 551.49299 2.39% - 0s H 0 0 564.0000000 551.49299 2.22% - 0s 0 2 551.52904 0 73 564.00000 551.52904 2.21% - 0s * 381 188 22 563.0000000 555.22360 1.38% 10.6 1s * 436 179 13 562.0000000 555.46921 1.16% 10.5 1s Cutting planes: Gomory: 4 MIR: 3 Zero half: 6 Explored 2547 nodes (25542 simplex iterations) in 4.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 33), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (6, 39), (39, 50), (10, 35), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (31, 35)] Optimize a model with 332 rows, 1275 columns and 63859 nonzeros Presolve time: 0.04s Presolved: 332 rows, 1275 columns, 63859 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.64815 3.23% - 0s 0 0 551.27860 0 68 568.00000 551.27860 2.94% - 0s 0 0 551.27860 0 57 568.00000 551.27860 2.94% - 0s 0 0 551.27860 0 67 568.00000 551.27860 2.94% - 0s 0 0 551.30768 0 67 568.00000 551.30768 2.94% - 0s 0 0 551.42082 0 74 568.00000 551.42082 2.92% - 0s 0 0 551.44934 0 70 568.00000 551.44934 2.91% - 0s 0 0 551.46186 0 70 568.00000 551.46186 2.91% - 0s 0 2 551.46876 0 70 568.00000 551.46876 2.91% - 0s H 62 30 566.0000000 553.15497 2.27% 8.6 1s * 164 72 20 562.0000000 553.75342 1.47% 9.0 1s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 2611 nodes (25191 simplex iterations) in 3.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (9, 49), (11, 31), (11, 40), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (18, 48), (21, 30), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] adding cut for [(5, 43), (8, 44), (8, 24), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (25, 44)] Optimize a model with 334 rows, 1275 columns and 64201 nonzeros Presolve time: 0.04s Presolved: 334 rows, 1275 columns, 64201 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start 0 0 551.27860 0 68 1672.00000 551.27860 67.0% - 0s 0 0 551.38007 0 74 1672.00000 551.38007 67.0% - 0s 0 0 551.41195 0 74 1672.00000 551.41195 67.0% - 0s 0 0 551.45293 0 71 1672.00000 551.45293 67.0% - 0s 0 0 551.45770 0 72 1672.00000 551.45770 67.0% - 0s 0 0 551.45770 0 70 1672.00000 551.45770 67.0% - 0s H 0 0 604.0000000 551.45770 8.70% - 0s H 0 0 582.0000000 551.45770 5.25% - 0s H 0 0 573.0000000 551.45770 3.76% - 0s 0 0 551.45770 0 57 573.00000 551.45770 3.76% - 1s 0 0 551.45770 0 68 573.00000 551.45770 3.76% - 1s 0 0 551.45770 0 70 573.00000 551.45770 3.76% - 1s 0 0 551.45770 0 75 573.00000 551.45770 3.76% - 1s 0 0 551.47952 0 74 573.00000 551.47952 3.76% - 1s 0 0 551.48065 0 77 573.00000 551.48065 3.76% - 1s 0 0 551.48635 0 77 573.00000 551.48635 3.75% - 1s 0 0 551.51961 0 75 573.00000 551.51961 3.75% - 1s 0 0 551.52126 0 76 573.00000 551.52126 3.75% - 1s 0 2 551.56263 0 76 573.00000 551.56263 3.74% - 2s * 54 44 45 571.0000000 552.84615 3.18% 9.2 2s * 103 74 41 567.0000000 553.19876 2.43% 9.2 2s * 195 122 21 565.0000000 553.51557 2.03% 10.9 2s * 206 111 24 564.0000000 553.51557 1.86% 10.7 2s * 248 112 16 563.0000000 554.02981 1.59% 10.9 2s * 330 128 19 562.0000000 554.33333 1.36% 10.5 2s Cutting planes: Gomory: 4 MIR: 3 Zero half: 8 Explored 1809 nodes (18045 simplex iterations) in 4.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (6, 38), (9, 27), (9, 49), (11, 40), (11, 50), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 335 rows, 1275 columns and 64432 nonzeros Presolve time: 0.04s Presolved: 335 rows, 1275 columns, 64432 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.64815 2.54% - 0s 0 0 551.27860 0 67 564.00000 551.27860 2.26% - 0s 0 0 551.27860 0 57 564.00000 551.27860 2.26% - 0s 0 0 551.27860 0 68 564.00000 551.27860 2.26% - 0s 0 0 551.38484 0 68 564.00000 551.38484 2.24% - 0s 0 0 551.40235 0 73 564.00000 551.40235 2.23% - 0s 0 0 551.48375 0 76 564.00000 551.48375 2.22% - 0s 0 0 551.51307 0 74 564.00000 551.51307 2.21% - 0s 0 0 551.51737 0 72 564.00000 551.51737 2.21% - 0s 0 0 551.52200 0 77 564.00000 551.52200 2.21% - 0s 0 0 551.53643 0 74 564.00000 551.53643 2.21% - 0s 0 0 551.55077 0 77 564.00000 551.55077 2.21% - 0s 0 0 551.55278 0 77 564.00000 551.55278 2.21% - 0s 0 0 551.55332 0 82 564.00000 551.55332 2.21% - 0s 0 0 551.55332 0 82 564.00000 551.55332 2.21% - 0s 0 2 551.58056 0 82 564.00000 551.58056 2.20% - 1s * 115 77 15 563.0000000 553.53957 1.68% 12.0 1s H 600 249 562.0000000 556.02857 1.06% 10.2 1s Cutting planes: Gomory: 4 MIR: 1 Zero half: 10 Explored 2289 nodes (22819 simplex iterations) in 4.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 39), (15, 25), (15, 26), (19, 26), (21, 30), (21, 36), (22, 30), (22, 51), (24, 44), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (6, 50), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42)] Optimize a model with 337 rows, 1275 columns and 64754 nonzeros Presolve time: 0.04s Presolved: 337 rows, 1275 columns, 64754 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 116 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.64815 3.06% - 0s 0 0 551.27860 0 67 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 57 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 68 567.00000 551.27860 2.77% - 0s H 0 0 566.0000000 551.27860 2.60% - 0s 0 0 551.42707 0 72 566.00000 551.42707 2.57% - 0s 0 0 551.44304 0 70 566.00000 551.44304 2.57% - 0s 0 0 551.45219 0 72 566.00000 551.45219 2.57% - 0s 0 0 551.48107 0 72 566.00000 551.48107 2.57% - 0s 0 0 551.48927 0 77 566.00000 551.48927 2.56% - 0s 0 0 551.50797 0 79 566.00000 551.50797 2.56% - 0s 0 0 551.51452 0 77 566.00000 551.51452 2.56% - 0s 0 0 551.53298 0 76 566.00000 551.53298 2.56% - 0s 0 0 551.54008 0 77 566.00000 551.54008 2.55% - 0s 0 0 551.55730 0 80 566.00000 551.55730 2.55% - 0s 0 0 551.56606 0 80 566.00000 551.56606 2.55% - 0s 0 0 551.57220 0 80 566.00000 551.57220 2.55% - 0s 0 0 551.57400 0 78 566.00000 551.57400 2.55% - 0s 0 2 551.57511 0 78 566.00000 551.57511 2.55% - 1s H 27 21 564.0000000 553.10587 1.93% 12.8 1s * 175 111 19 563.0000000 553.68660 1.65% 11.0 1s * 1135 288 22 562.0000000 556.46296 0.99% 11.0 3s Cutting planes: Gomory: 3 MIR: 3 Zero half: 6 Mod-K: 1 Explored 2324 nodes (24213 simplex iterations) in 4.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 19), (7, 24), (8, 27), (8, 44), (11, 31), (11, 40), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 338 rows, 1275 columns and 65030 nonzeros Presolve time: 0.04s Presolved: 338 rows, 1275 columns, 65030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 124 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.64815 2.72% - 0s 0 0 551.27860 0 67 565.00000 551.27860 2.43% - 0s 0 0 551.27860 0 57 565.00000 551.27860 2.43% - 0s 0 0 551.27860 0 68 565.00000 551.27860 2.43% - 0s 0 0 551.42707 0 72 565.00000 551.42707 2.40% - 0s 0 0 551.44304 0 70 565.00000 551.44304 2.40% - 0s 0 0 551.45219 0 72 565.00000 551.45219 2.40% - 0s 0 0 551.48107 0 72 565.00000 551.48107 2.39% - 0s 0 0 551.48940 0 75 565.00000 551.48940 2.39% - 0s 0 0 551.50728 0 74 565.00000 551.50728 2.39% - 0s 0 0 551.50979 0 77 565.00000 551.50979 2.39% - 0s 0 0 551.51433 0 78 565.00000 551.51433 2.39% - 0s 0 0 551.51531 0 79 565.00000 551.51531 2.39% - 0s H 0 0 564.0000000 551.51531 2.21% - 0s H 0 0 562.0000000 551.51531 1.87% - 1s 0 2 551.53827 0 79 562.00000 551.53827 1.86% - 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 1820 nodes (18799 simplex iterations) in 3.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 23), (3, 30), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (20, 41), (20, 43), (21, 30), (21, 36), (25, 44), (29, 32), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 339 rows, 1275 columns and 65306 nonzeros Presolve time: 0.04s Presolved: 339 rows, 1275 columns, 65306 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 124 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 573.0000000 549.64815 4.08% - 0s 0 0 551.27860 0 67 573.00000 551.27860 3.79% - 0s 0 0 551.27860 0 57 573.00000 551.27860 3.79% - 0s 0 0 551.27860 0 67 573.00000 551.27860 3.79% - 0s 0 0 551.35407 0 69 573.00000 551.35407 3.78% - 0s 0 0 551.41135 0 70 573.00000 551.41135 3.77% - 0s 0 0 551.43799 0 70 573.00000 551.43799 3.76% - 0s 0 0 551.43799 0 72 573.00000 551.43799 3.76% - 0s 0 0 551.44521 0 75 573.00000 551.44521 3.76% - 0s 0 0 551.44594 0 74 573.00000 551.44594 3.76% - 0s 0 0 551.45889 0 71 573.00000 551.45889 3.76% - 0s 0 0 551.46132 0 73 573.00000 551.46132 3.76% - 0s 0 0 551.46486 0 71 573.00000 551.46486 3.76% - 0s 0 0 551.46830 0 78 573.00000 551.46830 3.76% - 0s H 0 0 568.0000000 551.46830 2.91% - 1s 0 2 551.48070 0 78 568.00000 551.48070 2.91% - 1s * 30 23 27 566.0000000 552.84615 2.32% 10.6 1s * 297 172 28 565.0000000 554.24460 1.90% 9.9 1s * 320 174 21 564.0000000 554.29975 1.72% 10.2 1s H 423 181 563.0000000 555.44733 1.34% 10.2 1s * 961 280 34 562.0000000 555.95122 1.08% 10.6 3s Cutting planes: Gomory: 4 MIR: 3 Zero half: 4 Mod-K: 2 Explored 2592 nodes (25311 simplex iterations) in 4.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 21), (4, 29), (4, 37), (7, 24), (8, 27), (8, 44), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 30), (20, 41), (20, 42), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (41, 43), (43, 45)] Optimize a model with 340 rows, 1275 columns and 65802 nonzeros Presolve time: 0.04s Presolved: 340 rows, 1275 columns, 65802 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 124 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.64815 3.06% - 0s 0 0 551.27860 0 67 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 57 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 64 567.00000 551.27860 2.77% - 0s 0 0 551.30768 0 66 567.00000 551.30768 2.77% - 0s 0 0 551.37894 0 69 567.00000 551.37894 2.76% - 0s 0 0 551.41278 0 69 567.00000 551.41278 2.75% - 0s 0 0 551.43779 0 74 567.00000 551.43779 2.74% - 0s 0 0 551.44194 0 78 567.00000 551.44194 2.74% - 0s 0 0 551.45778 0 73 567.00000 551.45778 2.74% - 0s 0 0 551.48193 0 72 567.00000 551.48193 2.74% - 0s 0 0 551.48500 0 73 567.00000 551.48500 2.74% - 0s 0 0 551.49413 0 67 567.00000 551.49413 2.73% - 0s 0 0 551.49513 0 71 567.00000 551.49513 2.73% - 0s 0 0 551.49513 0 75 567.00000 551.49513 2.73% - 0s 0 0 551.49513 0 74 567.00000 551.49513 2.73% - 0s 0 2 551.52813 0 74 567.00000 551.52813 2.73% - 1s * 57 38 46 566.0000000 552.84615 2.32% 9.4 1s * 89 58 31 564.0000000 553.14736 1.92% 9.4 1s * 140 84 19 563.0000000 553.79545 1.63% 10.3 1s * 2537 287 33 562.0000000 558.71429 0.58% 10.2 4s Cutting planes: Gomory: 4 MIR: 3 Zero half: 6 Explored 3238 nodes (31733 simplex iterations) in 4.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(6, 50), (10, 17), (10, 50), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 30), (20, 41), (20, 43), (22, 30), (22, 51), (31, 35), (34, 40), (34, 46), (35, 51), (38, 45), (41, 42), (43, 45)] adding cut for [(2, 23), (3, 39), (3, 21), (4, 37), (4, 29), (12, 39), (21, 36), (23, 32), (36, 37), (29, 32)] Optimize a model with 342 rows, 1275 columns and 66110 nonzeros Presolve time: 0.04s Presolved: 342 rows, 1275 columns, 66110 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 124 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.64815 3.23% - 0s 0 0 551.27860 0 67 568.00000 551.27860 2.94% - 0s 0 0 551.27860 0 57 568.00000 551.27860 2.94% - 0s 0 0 551.27860 0 67 568.00000 551.27860 2.94% - 0s 0 0 551.30768 0 67 568.00000 551.30768 2.94% - 0s 0 0 551.42082 0 74 568.00000 551.42082 2.92% - 0s 0 0 551.44201 0 68 568.00000 551.44201 2.92% - 0s 0 0 551.44870 0 70 568.00000 551.44870 2.91% - 0s 0 0 551.45097 0 72 568.00000 551.45097 2.91% - 0s 0 0 551.46052 0 74 568.00000 551.46052 2.91% - 0s 0 0 551.47525 0 73 568.00000 551.47525 2.91% - 0s 0 0 551.48416 0 76 568.00000 551.48416 2.91% - 0s 0 0 551.51491 0 71 568.00000 551.51491 2.90% - 0s 0 0 551.51518 0 70 568.00000 551.51518 2.90% - 0s 0 0 551.51518 0 72 568.00000 551.51518 2.90% - 0s 0 0 551.51587 0 73 568.00000 551.51587 2.90% - 0s 0 0 551.51587 0 73 568.00000 551.51587 2.90% - 0s H 0 0 567.0000000 551.51587 2.73% - 1s 0 2 551.52551 0 73 567.00000 551.52551 2.73% - 1s H 59 36 564.0000000 553.20490 1.91% 11.0 1s * 136 76 23 562.0000000 553.50000 1.51% 11.1 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 7 Explored 1847 nodes (19579 simplex iterations) in 3.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (38, 45), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (6, 50), (31, 35)] adding cut for [(7, 24), (8, 44), (8, 24), (14, 42), (14, 26), (15, 25), (15, 26), (19, 42), (25, 44)] adding cut for [(41, 43), (20, 41), (20, 43)] Optimize a model with 345 rows, 1275 columns and 66263 nonzeros Presolve time: 0.04s Presolved: 345 rows, 1275 columns, 66263 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 119 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start 0 0 551.21969 0 64 1672.00000 551.21969 67.0% - 0s 0 0 551.34193 0 65 1672.00000 551.34193 67.0% - 0s 0 0 551.36248 0 69 1672.00000 551.36248 67.0% - 0s 0 0 551.40165 0 70 1672.00000 551.40165 67.0% - 0s 0 0 551.42270 0 72 1672.00000 551.42270 67.0% - 0s 0 0 551.42439 0 69 1672.00000 551.42439 67.0% - 0s 0 0 551.44160 0 75 1672.00000 551.44160 67.0% - 0s 0 0 551.46152 0 73 1672.00000 551.46152 67.0% - 0s 0 0 551.47112 0 70 1672.00000 551.47112 67.0% - 0s 0 0 551.47344 0 71 1672.00000 551.47344 67.0% - 0s 0 0 551.47855 0 77 1672.00000 551.47855 67.0% - 0s H 0 0 589.0000000 551.47855 6.37% - 0s H 0 0 574.0000000 551.47855 3.92% - 0s H 0 0 565.0000000 551.47855 2.39% - 1s 0 0 551.47855 0 57 565.00000 551.47855 2.39% - 1s 0 0 551.47855 0 69 565.00000 551.47855 2.39% - 1s 0 0 551.47855 0 69 565.00000 551.47855 2.39% - 1s 0 0 551.47855 0 72 565.00000 551.47855 2.39% - 1s 0 0 551.50224 0 75 565.00000 551.50224 2.39% - 1s 0 0 551.53847 0 79 565.00000 551.53847 2.38% - 1s 0 0 551.55119 0 77 565.00000 551.55119 2.38% - 1s 0 0 551.55927 0 75 565.00000 551.55927 2.38% - 1s 0 0 551.58097 0 74 565.00000 551.58097 2.38% - 1s 0 0 551.58266 0 78 565.00000 551.58266 2.37% - 1s 0 0 551.60180 0 71 565.00000 551.60180 2.37% - 1s 0 0 551.60180 0 75 565.00000 551.60180 2.37% - 1s 0 0 551.62012 0 68 565.00000 551.62012 2.37% - 1s 0 0 551.62895 0 77 565.00000 551.62895 2.37% - 1s 0 0 551.63455 0 80 565.00000 551.63455 2.37% - 1s 0 0 551.64725 0 77 565.00000 551.64725 2.36% - 1s 0 2 551.64813 0 77 565.00000 551.64813 2.36% - 2s * 260 136 10 563.0000000 554.42857 1.52% 11.2 2s 2025 341 561.33333 21 43 563.00000 558.00000 0.89% 10.7 5s * 2841 261 21 562.0000000 559.22222 0.49% 10.4 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 11 Explored 3264 nodes (32997 simplex iterations) in 6.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 45), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35)] Optimize a model with 346 rows, 1275 columns and 66453 nonzeros Presolve time: 0.04s Presolved: 346 rows, 1275 columns, 66453 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 117 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.64815 2.89% - 0s 0 0 551.27860 0 63 566.00000 551.27860 2.60% - 0s 0 0 551.27860 0 57 566.00000 551.27860 2.60% - 0s 0 0 551.27860 0 67 566.00000 551.27860 2.60% - 0s 0 0 551.35407 0 69 566.00000 551.35407 2.59% - 0s 0 0 551.41135 0 70 566.00000 551.41135 2.58% - 0s 0 0 551.43799 0 70 566.00000 551.43799 2.57% - 0s 0 0 551.43799 0 72 566.00000 551.43799 2.57% - 0s 0 0 551.44987 0 74 566.00000 551.44987 2.57% - 0s 0 0 551.44987 0 76 566.00000 551.44987 2.57% - 0s 0 0 551.47818 0 69 566.00000 551.47818 2.57% - 0s 0 0 551.48182 0 72 566.00000 551.48182 2.57% - 0s 0 0 551.48520 0 74 566.00000 551.48520 2.56% - 0s 0 0 551.48520 0 74 566.00000 551.48520 2.56% - 0s H 0 0 564.0000000 551.48520 2.22% - 0s 0 2 551.48774 0 74 564.00000 551.48774 2.22% - 1s * 273 112 14 563.0000000 554.31380 1.54% 11.5 1s 3132 422 cutoff 21 563.00000 558.57143 0.79% 10.3 5s * 4301 226 28 562.0000000 559.75000 0.40% 10.0 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 5 Explored 4616 nodes (44942 simplex iterations) in 6.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.620000000000e+02, best bound 5.620000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 50), (10, 51), (10, 50), (11, 40), (11, 31), (16, 46), (16, 18), (22, 51), (22, 35), (31, 35)] adding cut for [(2, 23), (3, 17), (3, 30), (4, 37), (4, 29), (12, 39), (17, 39), (21, 36), (21, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 348 rows, 1275 columns and 66636 nonzeros Presolve time: 0.04s Presolved: 348 rows, 1275 columns, 66636 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 119 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.64815 2.37% - 0s 0 0 551.27860 0 68 563.00000 551.27860 2.08% - 0s 0 0 551.27860 0 57 563.00000 551.27860 2.08% - 0s 0 0 551.27860 0 67 563.00000 551.27860 2.08% - 0s 0 0 551.30417 0 68 563.00000 551.30417 2.08% - 0s 0 0 551.35443 0 68 563.00000 551.35443 2.07% - 0s 0 0 551.38709 0 68 563.00000 551.38709 2.06% - 0s 0 0 551.42017 0 74 563.00000 551.42017 2.06% - 0s 0 0 551.51795 0 71 563.00000 551.51795 2.04% - 0s 0 0 551.52464 0 70 563.00000 551.52464 2.04% - 0s 0 0 551.54359 0 71 563.00000 551.54359 2.03% - 0s 0 0 551.54619 0 75 563.00000 551.54619 2.03% - 0s 0 0 551.54919 0 73 563.00000 551.54919 2.03% - 0s 0 0 551.55512 0 75 563.00000 551.55512 2.03% - 0s 0 0 551.57088 0 76 563.00000 551.57088 2.03% - 0s 0 0 551.57204 0 78 563.00000 551.57204 2.03% - 0s 0 0 551.58078 0 78 563.00000 551.58078 2.03% - 0s 0 0 551.58295 0 80 563.00000 551.58295 2.03% - 0s 0 0 551.60295 0 78 563.00000 551.60295 2.02% - 0s 0 0 551.61141 0 82 563.00000 551.61141 2.02% - 0s 0 0 551.61636 0 82 563.00000 551.61636 2.02% - 0s 0 0 551.62536 0 78 563.00000 551.62536 2.02% - 0s 0 0 551.63407 0 77 563.00000 551.63407 2.02% - 0s 0 2 551.64688 0 77 563.00000 551.64688 2.02% - 1s 2991 286 561.54545 30 42 563.00000 559.41243 0.64% 10.0 5s Cutting planes: Gomory: 3 MIR: 1 Zero half: 12 Explored 3786 nodes (36452 simplex iterations) in 5.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 39), (39, 50), (10, 51), (10, 50), (11, 40), (11, 31), (16, 46), (16, 18), (22, 51), (22, 35), (31, 35)] adding cut for [(2, 23), (3, 17), (3, 30), (4, 37), (4, 29), (12, 17), (21, 36), (21, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 350 rows, 1275 columns and 66822 nonzeros Presolve time: 0.04s Presolved: 350 rows, 1275 columns, 66822 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 117 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.64815 2.89% - 0s 0 0 551.27860 0 63 566.00000 551.27860 2.60% - 0s 0 0 551.27860 0 57 566.00000 551.27860 2.60% - 0s 0 0 551.27860 0 67 566.00000 551.27860 2.60% - 0s 0 0 551.35407 0 69 566.00000 551.35407 2.59% - 0s 0 0 551.40452 0 72 566.00000 551.40452 2.58% - 0s 0 0 551.43761 0 70 566.00000 551.43761 2.57% - 0s 0 0 551.43761 0 72 566.00000 551.43761 2.57% - 0s 0 0 551.43761 0 71 566.00000 551.43761 2.57% - 0s 0 2 551.47174 0 70 566.00000 551.47174 2.57% - 0s H 147 98 565.0000000 553.70833 2.00% 10.2 1s H 381 196 564.0000000 554.96154 1.60% 10.5 1s H 637 281 563.0000000 555.93275 1.26% 11.2 2s 3478 47 561.30303 21 52 563.00000 561.00000 0.36% 9.6 5s Cutting planes: Gomory: 4 MIR: 3 Zero half: 2 Explored 3537 nodes (33905 simplex iterations) in 5.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35), (31, 50)] Optimize a model with 351 rows, 1275 columns and 67012 nonzeros Presolve time: 0.04s Presolved: 351 rows, 1275 columns, 67012 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496481e+02, 119 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.64815 0 57 1672.00000 549.64815 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.64815 3.06% - 0s 0 0 551.27860 0 64 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 57 567.00000 551.27860 2.77% - 0s 0 0 551.27860 0 67 567.00000 551.27860 2.77% - 0s 0 0 551.31379 0 67 567.00000 551.31379 2.77% - 0s 0 0 551.37976 0 68 567.00000 551.37976 2.75% - 0s 0 0 551.42877 0 73 567.00000 551.42877 2.75% - 0s 0 0 551.46691 0 69 567.00000 551.46691 2.74% - 0s 0 0 551.48042 0 69 567.00000 551.48042 2.74% - 0s 0 0 551.48243 0 72 567.00000 551.48243 2.74% - 0s 0 0 551.48387 0 73 567.00000 551.48387 2.74% - 0s 0 0 551.48662 0 74 567.00000 551.48662 2.74% - 0s 0 2 551.48903 0 74 567.00000 551.48903 2.74% - 0s H 54 38 564.0000000 553.15103 1.92% 11.7 1s * 179 113 16 563.0000000 553.78431 1.64% 12.1 1s Cutting planes: Gomory: 4 MIR: 3 Zero half: 3 Explored 2864 nodes (28875 simplex iterations) in 4.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (17, 51), (25, 44), (21, 36), (21, 30), (22, 51), (22, 30), (23, 29), (24, 49), (24, 25), (4, 37), (4, 23), (29, 32)] adding cut for [(34, 40), (34, 46), (39, 50), (41, 43), (10, 35), (10, 50), (11, 40), (11, 31), (15, 26), (16, 45), (16, 46), (43, 45), (19, 26), (20, 41), (20, 42), (14, 19), (14, 42), (31, 35)] Optimize a model with 353 rows, 1275 columns and 67373 nonzeros Presolve time: 0.04s Presolved: 353 rows, 1275 columns, 67373 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 120 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 574.0000000 549.65556 4.24% - 0s 0 0 551.04617 0 60 574.00000 551.04617 4.00% - 0s 0 0 551.04617 0 55 574.00000 551.04617 4.00% - 0s 0 0 551.31159 0 59 574.00000 551.31159 3.95% - 0s 0 0 551.54848 0 59 574.00000 551.54848 3.91% - 0s 0 0 551.55173 0 64 574.00000 551.55173 3.91% - 0s 0 0 551.58780 0 70 574.00000 551.58780 3.90% - 0s 0 0 551.61783 0 70 574.00000 551.61783 3.90% - 0s 0 0 551.61783 0 74 574.00000 551.61783 3.90% - 0s 0 0 551.67979 0 66 574.00000 551.67979 3.89% - 0s 0 0 551.67979 0 70 574.00000 551.67979 3.89% - 0s 0 0 551.68302 0 73 574.00000 551.68302 3.89% - 0s 0 0 551.68302 0 77 574.00000 551.68302 3.89% - 0s H 0 0 567.0000000 551.68302 2.70% - 1s 0 2 551.70043 0 77 567.00000 551.70043 2.70% - 1s * 100 63 21 564.0000000 553.32468 1.89% 12.0 1s * 217 113 16 563.0000000 554.03060 1.59% 12.2 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 7 Explored 2595 nodes (25625 simplex iterations) in 4.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (7, 24), (41, 43), (11, 40), (11, 50), (16, 38), (16, 46), (8, 44), (8, 24), (20, 41), (20, 42), (14, 42), (14, 26), (25, 44), (25, 26)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 51), (10, 31), (12, 39), (17, 51), (17, 39), (3, 21), (3, 30), (21, 36), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 355 rows, 1275 columns and 67734 nonzeros Presolve time: 0.04s Presolved: 355 rows, 1275 columns, 67734 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 120 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 563.0000000 549.65556 2.37% - 0s 0 0 551.04617 0 60 563.00000 551.04617 2.12% - 0s 0 0 551.04617 0 55 563.00000 551.04617 2.12% - 0s 0 0 551.04617 0 60 563.00000 551.04617 2.12% - 0s 0 0 551.18775 0 63 563.00000 551.18775 2.10% - 0s 0 0 551.22404 0 62 563.00000 551.22404 2.09% - 0s 0 0 551.28550 0 67 563.00000 551.28550 2.08% - 0s 0 0 551.28613 0 65 563.00000 551.28613 2.08% - 0s 0 0 551.29188 0 69 563.00000 551.29188 2.08% - 0s 0 0 551.29824 0 73 563.00000 551.29824 2.08% - 0s 0 0 551.31527 0 66 563.00000 551.31527 2.08% - 0s 0 0 551.41996 0 65 563.00000 551.41996 2.06% - 0s 0 0 551.41996 0 69 563.00000 551.41996 2.06% - 0s 0 0 551.42471 0 64 563.00000 551.42471 2.06% - 0s 0 0 551.42471 0 68 563.00000 551.42471 2.06% - 0s 0 0 551.45047 0 66 563.00000 551.45047 2.05% - 0s 0 0 551.45047 0 70 563.00000 551.45047 2.05% - 0s 0 0 551.46056 0 67 563.00000 551.46056 2.05% - 0s 0 2 551.53944 0 67 563.00000 551.53944 2.04% - 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 6 Explored 3378 nodes (33745 simplex iterations) in 4.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (7, 24), (8, 24), (8, 44), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 356 rows, 1275 columns and 68230 nonzeros Presolve time: 0.04s Presolved: 356 rows, 1275 columns, 68230 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 120 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 573.0000000 549.65556 4.07% - 0s 0 0 551.04617 0 60 573.00000 551.04617 3.83% - 0s 0 0 551.04617 0 55 573.00000 551.04617 3.83% - 0s 0 0 551.31159 0 59 573.00000 551.31159 3.79% - 0s 0 0 551.55173 0 60 573.00000 551.55173 3.74% - 0s 0 0 551.58780 0 66 573.00000 551.58780 3.74% - 0s 0 0 551.61384 0 70 573.00000 551.61384 3.73% - 0s 0 0 551.62422 0 70 573.00000 551.62422 3.73% - 0s 0 0 551.62422 0 74 573.00000 551.62422 3.73% - 0s 0 0 551.67979 0 66 573.00000 551.67979 3.72% - 0s 0 0 551.67979 0 70 573.00000 551.67979 3.72% - 0s 0 0 551.68302 0 73 573.00000 551.68302 3.72% - 0s 0 0 551.68302 0 77 573.00000 551.68302 3.72% - 0s 0 2 551.70043 0 77 573.00000 551.70043 3.72% - 1s H 37 33 565.0000000 553.05208 2.11% 14.1 1s * 70 51 30 564.0000000 553.26633 1.90% 11.5 1s * 333 135 12 563.0000000 555.33333 1.36% 10.6 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 7 Explored 2437 nodes (24079 simplex iterations) in 4.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (10, 31), (10, 51), (12, 39), (15, 25), (17, 39), (17, 51), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (27, 32), (29, 32), (31, 35), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 43), (11, 40), (11, 50), (16, 38), (16, 46), (19, 26), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 358 rows, 1275 columns and 68581 nonzeros Presolve time: 0.04s Presolved: 358 rows, 1275 columns, 68581 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 120 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.65556 3.06% - 0s 0 0 551.04617 0 60 567.00000 551.04617 2.81% - 0s 0 0 551.04617 0 55 567.00000 551.04617 2.81% - 0s 0 0 551.31159 0 59 567.00000 551.31159 2.77% - 0s 0 0 551.54848 0 59 567.00000 551.54848 2.73% - 0s 0 0 551.55173 0 64 567.00000 551.55173 2.72% - 0s 0 0 551.58780 0 70 567.00000 551.58780 2.72% - 0s 0 0 551.61952 0 66 567.00000 551.61952 2.71% - 0s 0 0 551.61952 0 70 567.00000 551.61952 2.71% - 0s 0 0 551.64059 0 71 567.00000 551.64059 2.71% - 0s 0 0 551.64059 0 75 567.00000 551.64059 2.71% - 0s 0 0 551.65427 0 69 567.00000 551.65427 2.71% - 0s 0 0 551.65427 0 73 567.00000 551.65427 2.71% - 0s 0 0 551.66049 0 72 567.00000 551.66049 2.71% - 0s 0 0 551.68099 0 77 567.00000 551.68099 2.70% - 0s 0 0 551.71329 0 73 567.00000 551.71329 2.70% - 0s 0 0 551.71350 0 77 567.00000 551.71350 2.70% - 0s 0 0 551.72301 0 75 567.00000 551.72301 2.69% - 0s 0 0 551.72301 0 79 567.00000 551.72301 2.69% - 0s 0 0 551.79149 0 68 567.00000 551.79149 2.68% - 0s 0 0 551.79544 0 72 567.00000 551.79544 2.68% - 0s 0 0 551.80813 0 71 567.00000 551.80813 2.68% - 0s 0 0 551.81082 0 75 567.00000 551.81082 2.68% - 0s 0 0 551.81776 0 72 567.00000 551.81776 2.68% - 1s 0 0 551.81776 0 76 567.00000 551.81776 2.68% - 1s 0 0 551.82197 0 72 567.00000 551.82197 2.68% - 1s 0 0 551.82197 0 76 567.00000 551.82197 2.68% - 1s 0 0 551.85156 0 76 567.00000 551.85156 2.67% - 1s 0 0 551.85540 0 81 567.00000 551.85540 2.67% - 1s 0 0 551.86307 0 78 567.00000 551.86307 2.67% - 1s 0 0 551.86446 0 85 567.00000 551.86446 2.67% - 1s 0 0 551.88044 0 77 567.00000 551.88044 2.67% - 1s H 0 0 566.0000000 551.88044 2.49% - 1s 0 0 551.88342 0 68 566.00000 551.88342 2.49% - 1s 0 2 551.88388 0 68 566.00000 551.88388 2.49% - 1s H 50 32 563.0000000 553.29298 1.72% 9.7 1s 1582 208 561.57143 20 49 563.00000 558.05000 0.88% 10.8 5s Cutting planes: Gomory: 10 MIR: 1 Zero half: 6 Explored 2618 nodes (26559 simplex iterations) in 5.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (18, 38), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] adding cut for [(5, 43), (5, 48), (41, 43), (14, 42), (14, 26), (15, 26), (20, 41), (20, 42)] Optimize a model with 360 rows, 1275 columns and 68827 nonzeros Presolve time: 0.04s Presolved: 360 rows, 1275 columns, 68827 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 120 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start 0 0 551.04617 0 60 1672.00000 551.04617 67.0% - 0s 0 0 551.17695 0 62 1672.00000 551.17695 67.0% - 0s 0 0 551.22230 0 68 1672.00000 551.22230 67.0% - 0s 0 0 551.27667 0 62 1672.00000 551.27667 67.0% - 0s 0 0 551.29682 0 69 1672.00000 551.29682 67.0% - 0s 0 0 551.35438 0 62 1672.00000 551.35438 67.0% - 0s 0 0 551.41534 0 66 1672.00000 551.41534 67.0% - 0s 0 0 551.42155 0 65 1672.00000 551.42155 67.0% - 0s H 0 0 670.0000000 551.42155 17.7% - 0s H 0 0 592.0000000 551.42155 6.85% - 0s H 0 0 571.0000000 551.42155 3.43% - 0s 0 0 551.42155 0 69 571.00000 551.42155 3.43% - 0s 0 0 551.42155 0 55 571.00000 551.42155 3.43% - 0s 0 0 551.42155 0 63 571.00000 551.42155 3.43% - 0s 0 0 551.42155 0 69 571.00000 551.42155 3.43% - 0s 0 0 551.42155 0 70 571.00000 551.42155 3.43% - 0s 0 0 551.47174 0 72 571.00000 551.47174 3.42% - 0s 0 0 551.47174 0 76 571.00000 551.47174 3.42% - 0s 0 0 551.47174 0 72 571.00000 551.47174 3.42% - 0s 0 0 551.47174 0 76 571.00000 551.47174 3.42% - 1s 0 0 551.48027 0 70 571.00000 551.48027 3.42% - 1s 0 0 551.48027 0 74 571.00000 551.48027 3.42% - 1s 0 0 551.48525 0 71 571.00000 551.48525 3.42% - 1s 0 0 551.48525 0 75 571.00000 551.48525 3.42% - 1s 0 0 551.48842 0 72 571.00000 551.48842 3.42% - 1s 0 0 551.48842 0 76 571.00000 551.48842 3.42% - 1s 0 0 551.49559 0 72 571.00000 551.49559 3.42% - 1s 0 0 551.49559 0 76 571.00000 551.49559 3.42% - 1s 0 0 551.50232 0 71 571.00000 551.50232 3.41% - 1s 0 0 551.50911 0 75 571.00000 551.50911 3.41% - 1s 0 0 551.51214 0 78 571.00000 551.51214 3.41% - 1s 0 0 551.51214 0 79 571.00000 551.51214 3.41% - 1s 0 0 551.53222 0 75 571.00000 551.53222 3.41% - 1s 0 0 551.53222 0 79 571.00000 551.53222 3.41% - 1s 0 0 551.53669 0 76 571.00000 551.53669 3.41% - 1s 0 0 551.53878 0 79 571.00000 551.53878 3.41% - 1s 0 0 551.54713 0 80 571.00000 551.54713 3.41% - 1s 0 0 551.55638 0 75 571.00000 551.55638 3.41% - 1s H 0 0 568.0000000 551.55638 2.90% - 2s 0 2 551.58078 0 75 568.00000 551.58078 2.89% - 2s * 251 171 30 567.0000000 553.64760 2.35% 10.5 2s * 266 163 15 565.0000000 554.02981 1.94% 10.8 2s * 318 162 26 564.0000000 554.33333 1.71% 10.6 2s * 398 173 11 563.0000000 554.62069 1.49% 10.6 2s 1688 310 559.16667 27 47 563.00000 557.37500 1.00% 10.4 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 3680 nodes (35370 simplex iterations) in 6.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 49), (9, 27), (11, 40), (11, 31), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(6, 38), (5, 19), (38, 45), (41, 43), (43, 45), (14, 42), (14, 26), (19, 26), (20, 41), (20, 42)] Optimize a model with 362 rows, 1275 columns and 69053 nonzeros Presolve time: 0.04s Presolved: 362 rows, 1275 columns, 69053 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 565.0000000 549.65556 2.72% - 0s 0 0 551.24085 0 56 565.00000 551.24085 2.44% - 0s 0 0 551.24085 0 55 565.00000 551.24085 2.44% - 0s 0 0 551.24088 0 58 565.00000 551.24088 2.44% - 0s 0 0 551.30382 0 62 565.00000 551.30382 2.42% - 0s 0 0 551.32017 0 65 565.00000 551.32017 2.42% - 0s 0 0 551.37846 0 70 565.00000 551.37846 2.41% - 0s 0 0 551.38896 0 66 565.00000 551.38896 2.41% - 0s 0 0 551.48696 0 64 565.00000 551.48696 2.39% - 0s 0 0 551.49172 0 73 565.00000 551.49172 2.39% - 0s 0 0 551.49754 0 74 565.00000 551.49754 2.39% - 0s 0 0 551.50590 0 75 565.00000 551.50590 2.39% - 0s 0 0 551.53086 0 75 565.00000 551.53086 2.38% - 0s 0 0 551.56171 0 74 565.00000 551.56171 2.38% - 0s 0 0 551.56705 0 78 565.00000 551.56705 2.38% - 0s 0 0 551.57431 0 74 565.00000 551.57431 2.38% - 0s 0 0 551.57589 0 76 565.00000 551.57589 2.38% - 0s 0 0 551.57680 0 77 565.00000 551.57680 2.38% - 0s 0 2 551.60516 0 77 565.00000 551.60516 2.37% - 1s H 56 36 563.0000000 553.31049 1.72% 14.3 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 2925 nodes (30001 simplex iterations) in 4.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (11, 40), (11, 50), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 363 rows, 1275 columns and 69284 nonzeros Presolve time: 0.04s Presolved: 363 rows, 1275 columns, 69284 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 564.0000000 549.65556 2.54% - 0s 0 0 551.24085 0 56 564.00000 551.24085 2.26% - 0s 0 0 551.24085 0 55 564.00000 551.24085 2.26% - 0s 0 0 551.24184 0 55 564.00000 551.24184 2.26% - 0s 0 0 551.30231 0 61 564.00000 551.30231 2.25% - 0s 0 0 551.33547 0 64 564.00000 551.33547 2.25% - 0s 0 0 551.35961 0 66 564.00000 551.35961 2.24% - 0s 0 0 551.39217 0 68 564.00000 551.39217 2.24% - 0s 0 0 551.45196 0 68 564.00000 551.45196 2.22% - 0s 0 0 551.48219 0 72 564.00000 551.48219 2.22% - 0s 0 0 551.48729 0 69 564.00000 551.48729 2.22% - 0s 0 0 551.48729 0 73 564.00000 551.48729 2.22% - 0s 0 0 551.49901 0 70 564.00000 551.49901 2.22% - 0s 0 0 551.49901 0 74 564.00000 551.49901 2.22% - 0s 0 0 551.51746 0 66 564.00000 551.51746 2.21% - 0s 0 0 551.52287 0 76 564.00000 551.52287 2.21% - 0s 0 0 551.52600 0 74 564.00000 551.52600 2.21% - 0s 0 0 551.52647 0 76 564.00000 551.52647 2.21% - 0s 0 2 551.52931 0 76 564.00000 551.52931 2.21% - 1s * 544 244 21 563.0000000 555.70507 1.30% 10.7 1s Cutting planes: Gomory: 3 MIR: 1 Zero half: 13 Explored 2837 nodes (27992 simplex iterations) in 4.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (10, 51), (10, 50), (17, 51), (17, 39), (21, 36), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 50), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 11), (41, 42), (11, 40), (15, 26), (16, 45), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 365 rows, 1275 columns and 69565 nonzeros Presolve time: 0.04s Presolved: 365 rows, 1275 columns, 69565 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 577.0000000 549.65556 4.74% - 0s 0 0 551.24085 0 56 577.00000 551.24085 4.46% - 0s 0 0 551.24085 0 55 577.00000 551.24085 4.46% - 0s 0 0 551.30435 0 62 577.00000 551.30435 4.45% - 0s 0 0 551.54407 0 64 577.00000 551.54407 4.41% - 0s 0 0 551.58780 0 66 577.00000 551.58780 4.40% - 0s 0 0 551.61384 0 70 577.00000 551.61384 4.40% - 0s 0 0 551.62236 0 73 577.00000 551.62236 4.40% - 0s 0 0 551.62236 0 77 577.00000 551.62236 4.40% - 0s 0 0 551.62955 0 68 577.00000 551.62955 4.40% - 0s 0 0 551.62955 0 72 577.00000 551.62955 4.40% - 0s 0 0 551.64642 0 74 577.00000 551.64642 4.39% - 0s 0 0 551.64642 0 78 577.00000 551.64642 4.39% - 0s 0 0 551.64936 0 73 577.00000 551.64936 4.39% - 0s 0 0 551.64936 0 77 577.00000 551.64936 4.39% - 0s 0 0 551.65584 0 73 577.00000 551.65584 4.39% - 0s 0 0 551.65584 0 77 577.00000 551.65584 4.39% - 0s 0 0 551.65940 0 75 577.00000 551.65940 4.39% - 1s 0 0 551.65940 0 79 577.00000 551.65940 4.39% - 1s 0 0 551.66319 0 77 577.00000 551.66319 4.39% - 1s 0 0 551.66379 0 81 577.00000 551.66379 4.39% - 1s H 0 0 564.0000000 551.66379 2.19% - 1s 0 2 551.67847 0 81 564.00000 551.67847 2.18% - 1s * 369 169 20 563.0000000 555.11111 1.40% 11.2 2s 2219 353 cutoff 25 563.00000 558.73214 0.76% 9.9 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 10 Explored 3596 nodes (33911 simplex iterations) in 6.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (9, 23), (9, 27), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 40), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 366 rows, 1275 columns and 69916 nonzeros Presolve time: 0.04s Presolved: 366 rows, 1275 columns, 69916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 577.0000000 549.65556 4.74% - 0s 0 0 551.24085 0 56 577.00000 551.24085 4.46% - 0s 0 0 551.24085 0 55 577.00000 551.24085 4.46% - 0s 0 0 551.30435 0 62 577.00000 551.30435 4.45% - 0s 0 0 551.54407 0 64 577.00000 551.54407 4.41% - 0s 0 0 551.58780 0 66 577.00000 551.58780 4.40% - 0s 0 0 551.61384 0 70 577.00000 551.61384 4.40% - 0s 0 0 551.62236 0 73 577.00000 551.62236 4.40% - 0s 0 0 551.62236 0 77 577.00000 551.62236 4.40% - 0s 0 0 551.62955 0 68 577.00000 551.62955 4.40% - 0s 0 0 551.62955 0 72 577.00000 551.62955 4.40% - 0s 0 0 551.64642 0 74 577.00000 551.64642 4.39% - 0s 0 0 551.64642 0 78 577.00000 551.64642 4.39% - 0s 0 0 551.64936 0 73 577.00000 551.64936 4.39% - 0s 0 0 551.64936 0 77 577.00000 551.64936 4.39% - 0s 0 0 551.65584 0 73 577.00000 551.65584 4.39% - 0s 0 0 551.65584 0 77 577.00000 551.65584 4.39% - 0s 0 0 551.65940 0 75 577.00000 551.65940 4.39% - 1s 0 0 551.65940 0 79 577.00000 551.65940 4.39% - 1s 0 0 551.66319 0 77 577.00000 551.66319 4.39% - 1s 0 0 551.66379 0 81 577.00000 551.66379 4.39% - 1s H 0 0 564.0000000 551.66379 2.19% - 1s 0 2 551.67847 0 81 564.00000 551.67847 2.18% - 1s * 757 298 34 563.0000000 555.72308 1.29% 11.4 3s 1940 293 560.73913 25 56 563.00000 558.21437 0.85% 10.6 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 10 Explored 3248 nodes (32212 simplex iterations) in 6.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (5, 14), (41, 43), (10, 50), (10, 51), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (20, 41), (20, 42), (14, 42), (43, 45)] adding cut for [(36, 37), (9, 49), (9, 27), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 39)] Optimize a model with 368 rows, 1275 columns and 70211 nonzeros Presolve time: 0.04s Presolved: 368 rows, 1275 columns, 70211 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.65556 2.89% - 0s 0 0 551.24085 0 56 566.00000 551.24085 2.61% - 0s 0 0 551.24085 0 55 566.00000 551.24085 2.61% - 0s 0 0 551.30435 0 62 566.00000 551.30435 2.60% - 0s 0 0 551.54407 0 64 566.00000 551.54407 2.55% - 0s 0 0 551.58780 0 66 566.00000 551.58780 2.55% - 0s 0 0 551.61184 0 73 566.00000 551.61184 2.54% - 0s 0 0 551.63277 0 66 566.00000 551.63277 2.54% - 0s 0 0 551.64221 0 73 566.00000 551.64221 2.54% - 0s 0 0 551.64221 0 77 566.00000 551.64221 2.54% - 0s 0 0 551.67607 0 70 566.00000 551.67607 2.53% - 0s 0 0 551.67607 0 74 566.00000 551.67607 2.53% - 0s 0 0 551.70351 0 76 566.00000 551.70351 2.53% - 0s 0 0 551.70351 0 80 566.00000 551.70351 2.53% - 0s 0 0 551.72036 0 71 566.00000 551.72036 2.52% - 0s 0 0 551.72036 0 75 566.00000 551.72036 2.52% - 0s 0 0 551.72507 0 76 566.00000 551.72507 2.52% - 0s 0 0 551.72507 0 80 566.00000 551.72507 2.52% - 0s 0 2 551.72547 0 80 566.00000 551.72547 2.52% - 1s H 74 54 564.0000000 553.34363 1.89% 13.2 1s * 264 119 12 563.0000000 555.09900 1.40% 12.2 1s 2767 148 560.33333 23 41 563.00000 560.00000 0.53% 10.6 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 3070 nodes (32003 simplex iterations) in 5.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 23), (4, 29), (4, 37), (5, 18), (8, 24), (8, 27), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (18, 43), (20, 41), (20, 43), (21, 36), (24, 44), (25, 44), (29, 32), (36, 37), (41, 42)] Optimize a model with 369 rows, 1275 columns and 70511 nonzeros Presolve time: 0.04s Presolved: 369 rows, 1275 columns, 70511 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 569.0000000 549.65556 3.40% - 0s 0 0 551.24085 0 56 569.00000 551.24085 3.12% - 0s 0 0 551.24085 0 55 569.00000 551.24085 3.12% - 0s 0 0 551.30734 0 62 569.00000 551.30734 3.11% - 0s 0 0 551.54130 0 64 569.00000 551.54130 3.07% - 0s 0 0 551.54961 0 69 569.00000 551.54961 3.07% - 0s 0 0 551.58162 0 69 569.00000 551.58162 3.06% - 0s 0 0 551.58551 0 71 569.00000 551.58551 3.06% - 0s 0 0 551.58869 0 74 569.00000 551.58869 3.06% - 0s 0 0 551.62166 0 74 569.00000 551.62166 3.05% - 0s 0 0 551.64792 0 78 569.00000 551.64792 3.05% - 0s 0 0 551.66239 0 81 569.00000 551.66239 3.05% - 0s 0 0 551.66239 0 81 569.00000 551.66239 3.05% - 0s H 0 0 566.0000000 551.66239 2.53% - 0s 0 2 551.67106 0 81 566.00000 551.67106 2.53% - 1s * 181 105 18 564.0000000 553.73333 1.82% 11.1 1s * 206 107 16 563.0000000 553.81522 1.63% 11.4 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 7 Explored 2544 nodes (26235 simplex iterations) in 4.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (5, 14), (41, 43), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (50, 51), (20, 41), (20, 42), (14, 42), (43, 45)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 39), (10, 31), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 371 rows, 1275 columns and 70802 nonzeros Presolve time: 0.04s Presolved: 371 rows, 1275 columns, 70802 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.65556 2.89% - 0s 0 0 551.24085 0 56 566.00000 551.24085 2.61% - 0s 0 0 551.24085 0 55 566.00000 551.24085 2.61% - 0s 0 0 551.30435 0 62 566.00000 551.30435 2.60% - 0s 0 0 551.54407 0 64 566.00000 551.54407 2.55% - 0s 0 0 551.58780 0 66 566.00000 551.58780 2.55% - 0s 0 0 551.61184 0 73 566.00000 551.61184 2.54% - 0s 0 0 551.63277 0 66 566.00000 551.63277 2.54% - 0s 0 0 551.64221 0 73 566.00000 551.64221 2.54% - 0s 0 0 551.64221 0 77 566.00000 551.64221 2.54% - 0s 0 0 551.67607 0 70 566.00000 551.67607 2.53% - 0s 0 0 551.67607 0 74 566.00000 551.67607 2.53% - 0s 0 0 551.70351 0 76 566.00000 551.70351 2.53% - 0s 0 0 551.70351 0 80 566.00000 551.70351 2.53% - 0s 0 0 551.72036 0 71 566.00000 551.72036 2.52% - 0s 0 0 551.72036 0 75 566.00000 551.72036 2.52% - 0s 0 0 551.72507 0 76 566.00000 551.72507 2.52% - 0s 0 0 551.72507 0 80 566.00000 551.72507 2.52% - 0s 0 2 551.72547 0 80 566.00000 551.72547 2.52% - 1s * 72 48 25 564.0000000 553.34363 1.89% 12.4 1s * 378 173 19 563.0000000 555.57143 1.32% 11.7 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 2735 nodes (27930 simplex iterations) in 4.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (5, 14), (35, 51), (41, 43), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (20, 41), (20, 42), (14, 42), (43, 45), (31, 35), (31, 50)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 39), (10, 22), (12, 39), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 373 rows, 1275 columns and 71103 nonzeros Presolve time: 0.04s Presolved: 373 rows, 1275 columns, 71103 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.65556 2.89% - 0s 0 0 551.24085 0 56 566.00000 551.24085 2.61% - 0s 0 0 551.24085 0 55 566.00000 551.24085 2.61% - 0s 0 0 551.30435 0 62 566.00000 551.30435 2.60% - 0s 0 0 551.54407 0 64 566.00000 551.54407 2.55% - 0s 0 0 551.58780 0 66 566.00000 551.58780 2.55% - 0s 0 0 551.61184 0 73 566.00000 551.61184 2.54% - 0s 0 0 551.63277 0 66 566.00000 551.63277 2.54% - 0s 0 0 551.64221 0 73 566.00000 551.64221 2.54% - 0s 0 0 551.64221 0 77 566.00000 551.64221 2.54% - 0s 0 0 551.67607 0 70 566.00000 551.67607 2.53% - 0s 0 0 551.67607 0 74 566.00000 551.67607 2.53% - 0s 0 0 551.70351 0 76 566.00000 551.70351 2.53% - 0s 0 0 551.70351 0 80 566.00000 551.70351 2.53% - 0s 0 0 551.72036 0 71 566.00000 551.72036 2.52% - 0s 0 0 551.72036 0 75 566.00000 551.72036 2.52% - 0s 0 0 551.72507 0 76 566.00000 551.72507 2.52% - 0s 0 0 551.72507 0 80 566.00000 551.72507 2.52% - 0s 0 2 551.72547 0 80 566.00000 551.72547 2.52% - 1s H 118 81 564.0000000 553.45918 1.87% 13.3 1s * 359 159 24 563.0000000 555.43210 1.34% 11.9 1s 2925 136 561.22727 22 44 563.00000 560.50000 0.44% 9.8 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 3158 nodes (30558 simplex iterations) in 5.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 38), (5, 19), (38, 45), (10, 51), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (6, 50), (31, 35)] adding cut for [(7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (18, 43), (20, 41), (20, 43), (25, 44)] Optimize a model with 375 rows, 1275 columns and 71286 nonzeros Presolve time: 0.04s Presolved: 375 rows, 1275 columns, 71286 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 566.0000000 549.65556 2.89% - 0s 0 0 551.24085 0 56 566.00000 551.24085 2.61% - 0s 0 0 551.24085 0 55 566.00000 551.24085 2.61% - 0s 0 0 551.30435 0 62 566.00000 551.30435 2.60% - 0s H 0 0 565.0000000 551.30435 2.42% - 0s 0 0 551.54032 0 64 565.00000 551.54032 2.38% - 0s 0 0 551.54243 0 69 565.00000 551.54243 2.38% - 0s 0 0 551.55670 0 70 565.00000 551.55670 2.38% - 0s 0 0 551.60185 0 76 565.00000 551.60185 2.37% - 0s 0 0 551.65541 0 64 565.00000 551.65541 2.36% - 0s 0 0 551.65928 0 78 565.00000 551.65928 2.36% - 0s 0 0 551.67765 0 72 565.00000 551.67765 2.36% - 0s 0 0 551.67765 0 76 565.00000 551.67765 2.36% - 0s 0 0 551.71413 0 71 565.00000 551.71413 2.35% - 0s 0 0 551.71490 0 76 565.00000 551.71490 2.35% - 0s 0 0 551.76209 0 75 565.00000 551.76209 2.34% - 0s 0 0 551.76209 0 79 565.00000 551.76209 2.34% - 0s 0 0 551.80579 0 72 565.00000 551.80579 2.34% - 0s 0 0 551.80809 0 79 565.00000 551.80809 2.33% - 0s 0 0 551.81420 0 74 565.00000 551.81420 2.33% - 0s 0 0 551.81509 0 80 565.00000 551.81509 2.33% - 0s 0 0 551.82562 0 75 565.00000 551.82562 2.33% - 0s 0 0 551.82613 0 78 565.00000 551.82613 2.33% - 0s 0 0 551.83183 0 81 565.00000 551.83183 2.33% - 0s 0 2 551.85895 0 81 565.00000 551.85895 2.33% - 1s H 191 129 564.0000000 553.67568 1.83% 12.5 1s 1586 399 558.50000 25 46 564.00000 556.37500 1.35% 11.0 5s * 1653 382 28 563.0000000 556.64815 1.13% 11.0 5s Cutting planes: Gomory: 7 MIR: 3 Zero half: 5 Explored 4121 nodes (41992 simplex iterations) in 7.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 30), (10, 17), (10, 39), (11, 40), (11, 50), (14, 26), (14, 42), (16, 45), (16, 46), (19, 26), (20, 41), (20, 43), (22, 30), (22, 51), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (41, 42), (43, 45)] adding cut for [(2, 33), (2, 23), (36, 37), (9, 49), (9, 27), (21, 36), (21, 23), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 377 rows, 1275 columns and 71605 nonzeros Presolve time: 0.04s Presolved: 377 rows, 1275 columns, 71605 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 568.0000000 549.65556 3.23% - 0s 0 0 551.24085 0 56 568.00000 551.24085 2.95% - 0s 0 0 551.24085 0 55 568.00000 551.24085 2.95% - 0s 0 0 551.30435 0 62 568.00000 551.30435 2.94% - 0s 0 0 551.53791 0 64 568.00000 551.53791 2.90% - 0s 0 0 551.54132 0 69 568.00000 551.54132 2.90% - 0s 0 0 551.57255 0 65 568.00000 551.57255 2.89% - 0s 0 0 551.57821 0 71 568.00000 551.57821 2.89% - 0s 0 0 551.58359 0 74 568.00000 551.58359 2.89% - 0s 0 0 551.58616 0 74 568.00000 551.58616 2.89% - 0s 0 0 551.59494 0 72 568.00000 551.59494 2.89% - 0s 0 0 551.59701 0 74 568.00000 551.59701 2.89% - 0s 0 0 551.59764 0 75 568.00000 551.59764 2.89% - 0s 0 0 551.61590 0 72 568.00000 551.61590 2.88% - 0s 0 0 551.61590 0 73 568.00000 551.61590 2.88% - 0s 0 0 551.61860 0 81 568.00000 551.61860 2.88% - 0s 0 0 551.64058 0 72 568.00000 551.64058 2.88% - 0s 0 0 551.64789 0 77 568.00000 551.64789 2.88% - 0s 0 0 551.66008 0 81 568.00000 551.66008 2.88% - 0s 0 0 551.68989 0 82 568.00000 551.68989 2.87% - 0s 0 0 551.69043 0 81 568.00000 551.69043 2.87% - 0s 0 0 551.69043 0 81 568.00000 551.69043 2.87% - 1s H 0 0 567.0000000 551.69043 2.70% - 1s H 0 0 565.0000000 551.69043 2.36% - 1s 0 2 551.70989 0 81 565.00000 551.70989 2.35% - 1s * 212 136 24 564.0000000 553.56046 1.85% 11.9 2s * 870 266 30 563.0000000 555.84390 1.27% 11.2 3s 2482 141 562.00000 21 46 563.00000 560.28571 0.48% 9.8 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 10 Explored 2729 nodes (26411 simplex iterations) in 5.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 18), (29, 32), (31, 35)] adding cut for [(6, 38), (38, 45), (41, 42), (43, 45), (14, 42), (14, 19), (20, 41), (20, 43)] Optimize a model with 379 rows, 1275 columns and 71812 nonzeros Presolve time: 0.04s Presolved: 379 rows, 1275 columns, 71812 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.496556e+02, 123 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 549.65556 0 55 1672.00000 549.65556 67.1% - 0s Another try with MIP start H 0 0 567.0000000 549.65556 3.06% - 0s 0 0 551.24085 0 56 567.00000 551.24085 2.78% - 0s 0 0 551.24085 0 55 567.00000 551.24085 2.78% - 0s 0 0 551.30435 0 62 567.00000 551.30435 2.77% - 0s 0 0 551.54407 0 64 567.00000 551.54407 2.73% - 0s 0 0 551.58780 0 66 567.00000 551.58780 2.72% - 0s 0 0 551.61184 0 73 567.00000 551.61184 2.71% - 0s 0 0 551.63277 0 66 567.00000 551.63277 2.71% - 0s 0 0 551.64221 0 73 567.00000 551.64221 2.71% - 0s 0 0 551.64221 0 77 567.00000 551.64221 2.71% - 0s 0 0 551.67607 0 70 567.00000 551.67607 2.70% - 0s 0 0 551.67607 0 74 567.00000 551.67607 2.70% - 0s 0 0 551.70351 0 76 567.00000 551.70351 2.70% - 0s 0 0 551.70351 0 80 567.00000 551.70351 2.70% - 0s 0 0 551.72036 0 71 567.00000 551.72036 2.69% - 0s 0 0 551.72036 0 75 567.00000 551.72036 2.69% - 0s 0 0 551.72507 0 76 567.00000 551.72507 2.69% - 0s 0 0 551.72507 0 80 567.00000 551.72507 2.69% - 0s H 0 0 564.0000000 551.72507 2.18% - 1s 0 2 551.72547 0 80 564.00000 551.72547 2.18% - 1s * 535 245 14 563.0000000 556.13333 1.22% 10.8 2s 2793 157 cutoff 23 563.00000 559.83333 0.56% 10.5 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 3145 nodes (32660 simplex iterations) in 5.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(8, 44), (8, 24), (41, 42), (43, 45), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] adding cut for [(3, 33), (3, 30), (35, 51), (10, 39), (10, 31), (12, 39), (17, 51), (17, 22), (22, 30), (31, 35)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (11, 40), (11, 50), (16, 38), (16, 46), (18, 38), (6, 50)] Optimize a model with 382 rows, 1275 columns and 71988 nonzeros Presolve time: 0.04s Presolved: 382 rows, 1275 columns, 71988 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.46399 0 62 568.00000 551.46399 2.91% - 0s 0 0 551.46399 0 56 568.00000 551.46399 2.91% - 0s 0 0 551.65938 0 62 568.00000 551.65938 2.88% - 0s 0 0 551.65938 0 66 568.00000 551.65938 2.88% - 0s 0 0 551.66273 0 63 568.00000 551.66273 2.88% - 0s 0 0 551.66273 0 67 568.00000 551.66273 2.88% - 0s 0 0 551.68181 0 64 568.00000 551.68181 2.87% - 0s 0 0 551.68181 0 68 568.00000 551.68181 2.87% - 0s 0 0 551.70891 0 66 568.00000 551.70891 2.87% - 0s 0 0 551.73470 0 70 568.00000 551.73470 2.86% - 0s 0 0 551.75595 0 70 568.00000 551.75595 2.86% - 0s 0 0 551.75595 0 74 568.00000 551.75595 2.86% - 0s 0 0 551.80009 0 71 568.00000 551.80009 2.85% - 0s 0 0 551.80009 0 72 568.00000 551.80009 2.85% - 0s 0 0 551.81504 0 76 568.00000 551.81504 2.85% - 0s 0 0 551.82112 0 73 568.00000 551.82112 2.85% - 0s 0 0 551.82706 0 76 568.00000 551.82706 2.85% - 0s 0 0 551.83451 0 82 568.00000 551.83451 2.85% - 0s 0 0 551.83980 0 79 568.00000 551.83980 2.85% - 0s 0 0 551.84542 0 83 568.00000 551.84542 2.84% - 1s 0 0 551.84602 0 82 568.00000 551.84602 2.84% - 1s 0 0 551.85390 0 81 568.00000 551.85390 2.84% - 1s 0 0 551.85811 0 79 568.00000 551.85811 2.84% - 1s 0 0 551.86042 0 79 568.00000 551.86042 2.84% - 1s 0 0 551.86336 0 80 568.00000 551.86336 2.84% - 1s 0 2 551.89588 0 80 568.00000 551.89588 2.84% - 1s H 27 26 566.0000000 553.00000 2.30% 16.0 1s * 685 369 32 565.0000000 555.50000 1.68% 11.3 3s * 941 366 36 563.0000000 555.50000 1.33% 11.1 3s 2154 263 561.62500 22 41 563.00000 559.10241 0.69% 10.5 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 10 Explored 2960 nodes (29958 simplex iterations) in 5.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (6, 16), (9, 27), (11, 40), (11, 50), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] Optimize a model with 383 rows, 1275 columns and 72159 nonzeros Presolve time: 0.04s Presolved: 383 rows, 1275 columns, 72159 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 56 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 66 565.00000 551.46399 2.40% - 0s 0 0 551.49132 0 65 565.00000 551.49132 2.39% - 0s 0 0 551.49132 0 69 565.00000 551.49132 2.39% - 0s 0 0 551.58593 0 65 565.00000 551.58593 2.37% - 0s 0 0 551.59179 0 67 565.00000 551.59179 2.37% - 0s 0 0 551.64083 0 66 565.00000 551.64083 2.36% - 0s 0 0 551.64083 0 70 565.00000 551.64083 2.36% - 0s 0 0 551.66896 0 72 565.00000 551.66896 2.36% - 0s 0 0 551.69359 0 68 565.00000 551.69359 2.36% - 0s 0 0 551.71211 0 73 565.00000 551.71211 2.35% - 0s 0 0 551.73855 0 69 565.00000 551.73855 2.35% - 0s 0 0 551.74599 0 73 565.00000 551.74599 2.35% - 0s 0 0 551.76160 0 66 565.00000 551.76160 2.34% - 0s 0 0 551.76899 0 72 565.00000 551.76899 2.34% - 0s 0 0 551.82818 0 73 565.00000 551.82818 2.33% - 0s 0 0 551.83884 0 73 565.00000 551.83884 2.33% - 0s 0 0 551.85988 0 77 565.00000 551.85988 2.33% - 0s 0 0 551.87738 0 76 565.00000 551.87738 2.32% - 0s 0 0 551.89530 0 83 565.00000 551.89530 2.32% - 0s 0 0 551.90954 0 78 565.00000 551.90954 2.32% - 0s 0 0 551.91618 0 75 565.00000 551.91618 2.32% - 0s 0 0 551.91697 0 81 565.00000 551.91697 2.32% - 0s 0 0 551.91955 0 82 565.00000 551.91955 2.32% - 1s 0 2 551.92112 0 82 565.00000 551.92112 2.31% - 1s H 57 34 564.0000000 553.43616 1.87% 14.7 1s * 105 61 19 563.0000000 553.62666 1.66% 14.1 1s 2229 74 561.11029 22 46 563.00000 560.75000 0.40% 11.0 5s Cutting planes: Gomory: 3 MIR: 1 Zero half: 14 Explored 2345 nodes (25825 simplex iterations) in 5.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (10, 39), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (25, 44), (24, 25), (4, 37), (4, 29), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 42), (11, 40), (11, 50), (18, 38), (18, 45), (16, 38), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26), (15, 26)] Optimize a model with 385 rows, 1275 columns and 72466 nonzeros Presolve time: 0.04s Presolved: 385 rows, 1275 columns, 72466 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.44048 3.94% - 0s 0 0 551.48318 0 63 573.00000 551.48318 3.76% - 0s 0 0 551.48318 0 56 573.00000 551.48318 3.76% - 0s 0 0 551.65938 0 62 573.00000 551.65938 3.72% - 0s 0 0 551.65938 0 66 573.00000 551.65938 3.72% - 0s 0 0 551.66273 0 63 573.00000 551.66273 3.72% - 0s 0 0 551.66273 0 67 573.00000 551.66273 3.72% - 0s 0 0 551.68181 0 64 573.00000 551.68181 3.72% - 0s 0 0 551.68181 0 68 573.00000 551.68181 3.72% - 0s 0 0 551.78647 0 70 573.00000 551.78647 3.70% - 0s 0 0 551.78647 0 74 573.00000 551.78647 3.70% - 0s 0 0 551.78910 0 74 573.00000 551.78910 3.70% - 0s 0 0 551.78910 0 75 573.00000 551.78910 3.70% - 0s 0 0 551.78910 0 76 573.00000 551.78910 3.70% - 0s 0 0 551.80981 0 74 573.00000 551.80981 3.70% - 0s 0 0 551.81106 0 72 573.00000 551.81106 3.70% - 0s 0 0 551.83179 0 75 573.00000 551.83179 3.69% - 0s 0 0 551.83968 0 74 573.00000 551.83968 3.69% - 0s 0 0 551.84879 0 77 573.00000 551.84879 3.69% - 0s 0 0 551.85535 0 78 573.00000 551.85535 3.69% - 0s 0 0 551.85778 0 78 573.00000 551.85778 3.69% - 1s 0 0 551.86356 0 76 573.00000 551.86356 3.69% - 1s 0 0 551.88104 0 74 573.00000 551.88104 3.69% - 1s 0 0 551.88283 0 78 573.00000 551.88283 3.69% - 1s 0 0 551.91895 0 76 573.00000 551.91895 3.68% - 1s 0 0 551.93389 0 77 573.00000 551.93389 3.68% - 1s 0 0 551.97615 0 79 573.00000 551.97615 3.67% - 1s 0 0 551.97615 0 80 573.00000 551.97615 3.67% - 1s 0 0 552.01811 0 81 573.00000 552.01811 3.66% - 1s 0 0 552.02280 0 84 573.00000 552.02280 3.66% - 1s 0 0 552.02682 0 82 573.00000 552.02682 3.66% - 1s 0 0 552.02682 0 83 573.00000 552.02682 3.66% - 1s 0 0 552.02913 0 82 573.00000 552.02913 3.66% - 1s 0 0 552.02966 0 83 573.00000 552.02966 3.66% - 1s H 0 0 572.0000000 552.02966 3.49% - 2s H 0 0 567.0000000 552.02966 2.64% - 2s 0 2 552.06643 0 83 567.00000 552.06643 2.63% - 2s * 43 30 35 566.0000000 553.74753 2.16% 13.4 2s * 83 54 31 565.0000000 553.85278 1.97% 11.5 2s * 284 129 15 564.0000000 554.61078 1.66% 11.4 2s * 501 205 17 563.0000000 555.33640 1.36% 10.3 3s 1688 273 562.00000 26 38 563.00000 558.20690 0.85% 10.6 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Mod-K: 1 Explored 2929 nodes (29953 simplex iterations) in 6.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(6, 50), (8, 24), (8, 44), (10, 35), (10, 50), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (24, 49), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (38, 45), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (17, 39), (17, 51), (21, 36), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 387 rows, 1275 columns and 72839 nonzeros Presolve time: 0.04s Presolved: 387 rows, 1275 columns, 72839 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 56 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 66 565.00000 551.46399 2.40% - 0s 0 0 551.49132 0 65 565.00000 551.49132 2.39% - 0s 0 0 551.49132 0 69 565.00000 551.49132 2.39% - 0s 0 0 551.58593 0 65 565.00000 551.58593 2.37% - 0s 0 0 551.59179 0 67 565.00000 551.59179 2.37% - 0s 0 0 551.64083 0 66 565.00000 551.64083 2.36% - 0s 0 0 551.64083 0 70 565.00000 551.64083 2.36% - 0s 0 0 551.67977 0 68 565.00000 551.67977 2.36% - 0s 0 0 551.68683 0 68 565.00000 551.68683 2.36% - 0s 0 0 551.69195 0 73 565.00000 551.69195 2.36% - 0s 0 0 551.69737 0 71 565.00000 551.69737 2.35% - 0s 0 0 551.69887 0 74 565.00000 551.69887 2.35% - 0s 0 0 551.70180 0 74 565.00000 551.70180 2.35% - 0s 0 0 551.70593 0 72 565.00000 551.70593 2.35% - 0s 0 0 551.70700 0 75 565.00000 551.70700 2.35% - 0s 0 0 551.70851 0 73 565.00000 551.70851 2.35% - 0s 0 0 551.78909 0 84 565.00000 551.78909 2.34% - 0s 0 0 551.87930 0 71 565.00000 551.87930 2.32% - 0s 0 0 551.87930 0 75 565.00000 551.87930 2.32% - 1s 0 0 551.88946 0 69 565.00000 551.88946 2.32% - 1s 0 0 551.89303 0 69 565.00000 551.89303 2.32% - 1s H 0 0 564.0000000 551.89303 2.15% - 1s 0 2 551.95010 0 69 564.00000 551.95010 2.14% - 1s * 337 150 19 563.0000000 555.32353 1.36% 11.0 2s Cutting planes: Gomory: 2 MIR: 1 Zero half: 9 Explored 2470 nodes (24652 simplex iterations) in 4.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 39), (14, 26), (14, 42), (15, 25), (15, 26), (17, 22), (17, 51), (18, 43), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (24, 44), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37), (41, 42)] Optimize a model with 388 rows, 1275 columns and 73217 nonzeros Presolve time: 0.04s Presolved: 388 rows, 1275 columns, 73217 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.44048 3.60% - 0s 0 0 551.48318 0 63 571.00000 551.48318 3.42% - 0s 0 0 551.48318 0 56 571.00000 551.48318 3.42% - 0s 0 0 551.65938 0 62 571.00000 551.65938 3.39% - 0s 0 0 551.65938 0 66 571.00000 551.65938 3.39% - 0s 0 0 551.66273 0 63 571.00000 551.66273 3.39% - 0s 0 0 551.66273 0 67 571.00000 551.66273 3.39% - 0s 0 0 551.68181 0 64 571.00000 551.68181 3.38% - 0s 0 0 551.68181 0 68 571.00000 551.68181 3.38% - 0s 0 0 551.70891 0 67 571.00000 551.70891 3.38% - 0s 0 0 551.73470 0 71 571.00000 551.73470 3.37% - 0s 0 0 551.79019 0 74 571.00000 551.79019 3.36% - 0s 0 0 551.79019 0 78 571.00000 551.79019 3.36% - 0s 0 0 551.80533 0 73 571.00000 551.80533 3.36% - 0s 0 0 551.81144 0 79 571.00000 551.81144 3.36% - 0s 0 0 551.81144 0 78 571.00000 551.81144 3.36% - 0s 0 0 551.81144 0 80 571.00000 551.81144 3.36% - 0s 0 0 551.81860 0 79 571.00000 551.81860 3.36% - 0s 0 0 551.83190 0 73 571.00000 551.83190 3.36% - 0s 0 0 551.84851 0 75 571.00000 551.84851 3.35% - 0s 0 0 551.95456 0 69 571.00000 551.95456 3.34% - 1s 0 0 551.99363 0 76 571.00000 551.99363 3.33% - 1s 0 0 551.99363 0 77 571.00000 551.99363 3.33% - 1s 0 0 551.99363 0 77 571.00000 551.99363 3.33% - 1s 0 0 552.00828 0 76 571.00000 552.00828 3.33% - 1s 0 0 552.00887 0 79 571.00000 552.00887 3.33% - 1s 0 0 552.01970 0 79 571.00000 552.01970 3.32% - 1s 0 0 552.02598 0 75 571.00000 552.02598 3.32% - 1s 0 0 552.02612 0 75 571.00000 552.02612 3.32% - 1s 0 0 552.02978 0 83 571.00000 552.02978 3.32% - 1s 0 0 552.04621 0 79 571.00000 552.04621 3.32% - 1s 0 0 552.04843 0 81 571.00000 552.04843 3.32% - 1s 0 0 552.06373 0 79 571.00000 552.06373 3.32% - 1s 0 0 552.06601 0 82 571.00000 552.06601 3.32% - 1s 0 0 552.08341 0 83 571.00000 552.08341 3.31% - 1s 0 0 552.08341 0 84 571.00000 552.08341 3.31% - 1s 0 0 552.08971 0 79 571.00000 552.08971 3.31% - 1s 0 0 552.08971 0 80 571.00000 552.08971 3.31% - 1s 0 0 552.10298 0 77 571.00000 552.10298 3.31% - 1s 0 0 552.10298 0 81 571.00000 552.10298 3.31% - 1s 0 0 552.10935 0 82 571.00000 552.10935 3.31% - 1s 0 0 552.10935 0 83 571.00000 552.10935 3.31% - 1s 0 0 552.16708 0 82 571.00000 552.16708 3.30% - 2s 0 0 552.17081 0 84 571.00000 552.17081 3.30% - 2s 0 0 552.18866 0 84 571.00000 552.18866 3.29% - 2s 0 0 552.19703 0 85 571.00000 552.19703 3.29% - 2s 0 0 552.19703 0 86 571.00000 552.19703 3.29% - 2s 0 0 552.20682 0 79 571.00000 552.20682 3.29% - 2s H 0 0 564.0000000 552.20682 2.09% - 2s 0 2 552.21352 0 79 564.00000 552.21352 2.09% - 2s * 1079 337 25 563.0000000 556.10256 1.23% 11.5 4s 1094 336 558.22051 21 57 563.00000 556.12534 1.22% 11.5 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 11 Explored 3547 nodes (36386 simplex iterations) in 7.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (11, 31), (11, 40), (15, 25), (15, 26), (16, 45), (16, 46), (19, 26), (21, 30), (21, 36), (22, 30), (22, 51), (24, 44), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 389 rows, 1275 columns and 73568 nonzeros Presolve time: 0.04s Presolved: 389 rows, 1275 columns, 73568 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 56 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 62 565.00000 551.46399 2.40% - 0s 0 0 551.46399 0 66 565.00000 551.46399 2.40% - 0s 0 0 551.49132 0 65 565.00000 551.49132 2.39% - 0s 0 0 551.49132 0 69 565.00000 551.49132 2.39% - 0s 0 0 551.58593 0 65 565.00000 551.58593 2.37% - 0s 0 0 551.59179 0 67 565.00000 551.59179 2.37% - 0s 0 0 551.64083 0 66 565.00000 551.64083 2.36% - 0s 0 0 551.64083 0 70 565.00000 551.64083 2.36% - 0s 0 0 551.66896 0 72 565.00000 551.66896 2.36% - 0s 0 0 551.69359 0 68 565.00000 551.69359 2.36% - 0s 0 0 551.71211 0 73 565.00000 551.71211 2.35% - 0s 0 0 551.73855 0 69 565.00000 551.73855 2.35% - 0s 0 0 551.74599 0 73 565.00000 551.74599 2.35% - 0s 0 0 551.76160 0 66 565.00000 551.76160 2.34% - 0s 0 0 551.76899 0 72 565.00000 551.76899 2.34% - 0s 0 0 551.82818 0 73 565.00000 551.82818 2.33% - 0s 0 0 551.83884 0 73 565.00000 551.83884 2.33% - 0s 0 0 551.85988 0 77 565.00000 551.85988 2.33% - 0s 0 0 551.87738 0 76 565.00000 551.87738 2.32% - 0s 0 0 551.89530 0 83 565.00000 551.89530 2.32% - 0s 0 0 551.90954 0 78 565.00000 551.90954 2.32% - 0s 0 0 551.91618 0 75 565.00000 551.91618 2.32% - 0s 0 0 551.91697 0 81 565.00000 551.91697 2.32% - 0s 0 0 551.91955 0 82 565.00000 551.91955 2.32% - 1s 0 2 551.92112 0 82 565.00000 551.92112 2.31% - 1s * 53 35 23 564.0000000 553.07897 1.94% 17.7 1s * 189 94 11 563.0000000 554.20609 1.56% 14.3 2s Cutting planes: Gomory: 3 MIR: 1 Zero half: 14 Explored 2138 nodes (23192 simplex iterations) in 4.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (12, 39), (15, 25), (15, 26), (17, 39), (17, 51), (19, 26), (21, 36), (22, 30), (22, 35), (23, 29), (24, 44), (25, 44), (29, 32), (35, 51), (36, 37)] adding cut for [(16, 45), (16, 46), (34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 48), (6, 50), (41, 42), (43, 45), (14, 42), (20, 41), (20, 43), (10, 50), (10, 31)] Optimize a model with 391 rows, 1275 columns and 73980 nonzeros Presolve time: 0.04s Presolved: 391 rows, 1275 columns, 73980 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 56 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 66 566.00000 551.46399 2.57% - 0s 0 0 551.49132 0 65 566.00000 551.49132 2.56% - 0s 0 0 551.49132 0 69 566.00000 551.49132 2.56% - 0s 0 0 551.58593 0 65 566.00000 551.58593 2.55% - 0s 0 0 551.58990 0 68 566.00000 551.58990 2.55% - 0s 0 0 551.64177 0 65 566.00000 551.64177 2.54% - 0s 0 0 551.64177 0 69 566.00000 551.64177 2.54% - 0s 0 0 551.66504 0 72 566.00000 551.66504 2.53% - 0s 0 0 551.68858 0 72 566.00000 551.68858 2.53% - 0s 0 0 551.69494 0 72 566.00000 551.69494 2.53% - 0s 0 0 551.70117 0 69 566.00000 551.70117 2.53% - 0s 0 0 551.77388 0 73 566.00000 551.77388 2.51% - 0s 0 0 551.80714 0 73 566.00000 551.80714 2.51% - 0s 0 0 551.80714 0 76 566.00000 551.80714 2.51% - 0s 0 0 551.81945 0 75 566.00000 551.81945 2.51% - 0s 0 0 551.82477 0 75 566.00000 551.82477 2.50% - 0s 0 0 551.82477 0 79 566.00000 551.82477 2.50% - 0s 0 0 551.84371 0 71 566.00000 551.84371 2.50% - 0s 0 0 551.84400 0 78 566.00000 551.84400 2.50% - 1s 0 2 551.85289 0 77 566.00000 551.85289 2.50% - 1s H 27 21 564.0000000 552.98517 1.95% 13.1 1s * 640 267 25 563.0000000 556.38562 1.17% 11.4 3s Cutting planes: Gomory: 1 MIR: 1 Zero half: 13 Explored 2293 nodes (23108 simplex iterations) in 4.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 12), (3, 17), (4, 37), (4, 29), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (39, 50), (10, 35), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (31, 35)] Optimize a model with 393 rows, 1275 columns and 74162 nonzeros Presolve time: 0.04s Presolved: 393 rows, 1275 columns, 74162 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 564.0000000 550.44048 2.40% - 0s 0 0 551.46399 0 62 564.00000 551.46399 2.22% - 0s 0 0 551.46399 0 56 564.00000 551.46399 2.22% - 0s 0 0 551.50340 0 59 564.00000 551.50340 2.22% - 0s 0 0 551.65938 0 62 564.00000 551.65938 2.19% - 0s 0 0 551.65938 0 66 564.00000 551.65938 2.19% - 0s 0 0 551.66811 0 64 564.00000 551.66811 2.19% - 0s 0 0 551.66811 0 68 564.00000 551.66811 2.19% - 0s 0 0 551.76345 0 69 564.00000 551.76345 2.17% - 0s 0 0 551.76345 0 73 564.00000 551.76345 2.17% - 0s 0 0 551.76929 0 70 564.00000 551.76929 2.17% - 0s 0 0 551.76929 0 74 564.00000 551.76929 2.17% - 0s 0 0 551.82154 0 72 564.00000 551.82154 2.16% - 0s 0 0 551.83464 0 76 564.00000 551.83464 2.16% - 0s 0 0 551.87671 0 64 564.00000 551.87671 2.15% - 0s 0 0 551.87675 0 70 564.00000 551.87675 2.15% - 0s 0 0 551.90357 0 69 564.00000 551.90357 2.14% - 0s 0 0 551.90357 0 73 564.00000 551.90357 2.14% - 0s 0 0 551.92076 0 71 564.00000 551.92076 2.14% - 0s 0 0 551.92076 0 74 564.00000 551.92076 2.14% - 0s 0 0 551.93133 0 74 564.00000 551.93133 2.14% - 0s 0 0 551.93133 0 77 564.00000 551.93133 2.14% - 0s 0 0 551.96280 0 72 564.00000 551.96280 2.13% - 0s 0 0 551.96280 0 75 564.00000 551.96280 2.13% - 0s 0 0 551.96539 0 74 564.00000 551.96539 2.13% - 1s 0 0 551.96671 0 77 564.00000 551.96671 2.13% - 1s 0 0 551.97084 0 83 564.00000 551.97084 2.13% - 1s 0 2 551.97222 0 83 564.00000 551.97222 2.13% - 1s * 1125 225 27 563.0000000 556.75000 1.11% 12.4 4s 2009 197 560.00000 22 42 563.00000 559.50000 0.62% 11.4 5s Cutting planes: Gomory: 3 MIR: 1 Zero half: 12 Explored 2566 nodes (27837 simplex iterations) in 5.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 16), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 394 rows, 1275 columns and 74315 nonzeros Presolve time: 0.04s Presolved: 394 rows, 1275 columns, 74315 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 564.0000000 550.44048 2.40% - 0s 0 0 551.46399 0 62 564.00000 551.46399 2.22% - 0s 0 0 551.46399 0 56 564.00000 551.46399 2.22% - 0s 0 0 551.50340 0 59 564.00000 551.50340 2.22% - 0s 0 0 551.65938 0 62 564.00000 551.65938 2.19% - 0s 0 0 551.65938 0 66 564.00000 551.65938 2.19% - 0s 0 0 551.66811 0 64 564.00000 551.66811 2.19% - 0s 0 0 551.66811 0 68 564.00000 551.66811 2.19% - 0s 0 0 551.76345 0 69 564.00000 551.76345 2.17% - 0s 0 0 551.76345 0 73 564.00000 551.76345 2.17% - 0s 0 0 551.76929 0 70 564.00000 551.76929 2.17% - 0s 0 0 551.76929 0 74 564.00000 551.76929 2.17% - 0s 0 0 551.82154 0 72 564.00000 551.82154 2.16% - 0s 0 0 551.83464 0 76 564.00000 551.83464 2.16% - 0s 0 0 551.87671 0 64 564.00000 551.87671 2.15% - 0s 0 0 551.87675 0 70 564.00000 551.87675 2.15% - 0s 0 0 551.90357 0 69 564.00000 551.90357 2.14% - 0s 0 0 551.90357 0 73 564.00000 551.90357 2.14% - 0s 0 0 551.92076 0 71 564.00000 551.92076 2.14% - 0s 0 0 551.92076 0 74 564.00000 551.92076 2.14% - 0s 0 0 551.93133 0 74 564.00000 551.93133 2.14% - 0s 0 0 551.93133 0 77 564.00000 551.93133 2.14% - 0s 0 0 551.96280 0 72 564.00000 551.96280 2.13% - 0s 0 0 551.96280 0 75 564.00000 551.96280 2.13% - 0s 0 0 551.96539 0 74 564.00000 551.96539 2.13% - 1s 0 0 551.96671 0 77 564.00000 551.96671 2.13% - 1s 0 0 551.97084 0 83 564.00000 551.97084 2.13% - 1s 0 2 551.97222 0 83 564.00000 551.97222 2.13% - 1s * 295 129 23 563.0000000 554.94047 1.43% 12.2 2s Cutting planes: Gomory: 3 MIR: 1 Zero half: 13 Explored 2152 nodes (23114 simplex iterations) in 4.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (41, 42), (43, 45), (12, 39), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (22, 51), (22, 35), (10, 51), (10, 39), (31, 50), (31, 35)] adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (17, 30), (21, 36), (21, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 396 rows, 1275 columns and 74610 nonzeros Presolve time: 0.04s Presolved: 396 rows, 1275 columns, 74610 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 56 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 66 566.00000 551.46399 2.57% - 0s 0 0 551.49132 0 65 566.00000 551.49132 2.56% - 0s 0 0 551.49132 0 69 566.00000 551.49132 2.56% - 0s 0 0 551.58593 0 65 566.00000 551.58593 2.55% - 0s 0 0 551.58990 0 68 566.00000 551.58990 2.55% - 0s 0 0 551.64177 0 65 566.00000 551.64177 2.54% - 0s 0 0 551.64177 0 69 566.00000 551.64177 2.54% - 0s 0 0 551.66504 0 72 566.00000 551.66504 2.53% - 0s 0 0 551.68858 0 72 566.00000 551.68858 2.53% - 0s 0 0 551.69494 0 72 566.00000 551.69494 2.53% - 0s 0 0 551.70117 0 69 566.00000 551.70117 2.53% - 0s 0 0 551.77388 0 73 566.00000 551.77388 2.51% - 0s 0 0 551.80714 0 73 566.00000 551.80714 2.51% - 0s 0 0 551.80714 0 76 566.00000 551.80714 2.51% - 0s 0 0 551.81945 0 75 566.00000 551.81945 2.51% - 0s 0 0 551.82367 0 75 566.00000 551.82367 2.50% - 0s 0 0 551.82367 0 79 566.00000 551.82367 2.50% - 0s 0 0 551.83882 0 79 566.00000 551.83882 2.50% - 0s 0 0 551.84470 0 76 566.00000 551.84470 2.50% - 0s 0 0 551.84746 0 83 566.00000 551.84746 2.50% - 0s 0 0 551.87539 0 78 566.00000 551.87539 2.50% - 1s 0 2 551.91707 0 78 566.00000 551.91707 2.49% - 1s * 49 35 16 564.0000000 553.93338 1.78% 13.1 1s H 379 156 563.0000000 555.71429 1.29% 10.9 2s 2332 134 561.81818 25 50 563.00000 560.04854 0.52% 10.4 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 14 Explored 2581 nodes (26484 simplex iterations) in 5.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 45), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 397 rows, 1275 columns and 74781 nonzeros Presolve time: 0.04s Presolved: 397 rows, 1275 columns, 74781 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 125 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 56 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 66 566.00000 551.46399 2.57% - 0s 0 0 551.49132 0 65 566.00000 551.49132 2.56% - 0s 0 0 551.49132 0 69 566.00000 551.49132 2.56% - 0s 0 0 551.58593 0 65 566.00000 551.58593 2.55% - 0s 0 0 551.58990 0 68 566.00000 551.58990 2.55% - 0s 0 0 551.64177 0 65 566.00000 551.64177 2.54% - 0s 0 0 551.64177 0 69 566.00000 551.64177 2.54% - 0s 0 0 551.66504 0 72 566.00000 551.66504 2.53% - 0s 0 0 551.68858 0 72 566.00000 551.68858 2.53% - 0s 0 0 551.69494 0 72 566.00000 551.69494 2.53% - 0s 0 0 551.70117 0 69 566.00000 551.70117 2.53% - 0s 0 0 551.77388 0 73 566.00000 551.77388 2.51% - 0s 0 0 551.80714 0 73 566.00000 551.80714 2.51% - 0s 0 0 551.80714 0 76 566.00000 551.80714 2.51% - 0s 0 0 551.81945 0 74 566.00000 551.81945 2.51% - 0s 0 0 551.82477 0 74 566.00000 551.82477 2.50% - 0s 0 0 551.82477 0 79 566.00000 551.82477 2.50% - 0s 0 0 551.84335 0 78 566.00000 551.84335 2.50% - 0s 0 0 551.84348 0 80 566.00000 551.84348 2.50% - 0s 0 0 551.84467 0 76 566.00000 551.84467 2.50% - 1s 0 0 551.86445 0 78 566.00000 551.86445 2.50% - 1s 0 0 551.86831 0 81 566.00000 551.86831 2.50% - 1s 0 0 551.89772 0 77 566.00000 551.89772 2.49% - 1s 0 0 551.98835 0 74 566.00000 551.98835 2.48% - 1s 0 0 552.02419 0 70 566.00000 552.02419 2.47% - 1s 0 0 552.03647 0 75 566.00000 552.03647 2.47% - 1s 0 0 552.04767 0 75 566.00000 552.04767 2.47% - 1s 0 0 552.06060 0 77 566.00000 552.06060 2.46% - 1s 0 0 552.06107 0 79 566.00000 552.06107 2.46% - 1s 0 0 552.06678 0 79 566.00000 552.06678 2.46% - 1s 0 0 552.09720 0 75 566.00000 552.09720 2.46% - 1s 0 0 552.12717 0 80 566.00000 552.12717 2.45% - 1s 0 0 552.14202 0 74 566.00000 552.14202 2.45% - 1s 0 0 552.14215 0 78 566.00000 552.14215 2.45% - 1s 0 0 552.14817 0 82 566.00000 552.14817 2.45% - 1s 0 0 552.14842 0 83 566.00000 552.14842 2.45% - 1s 0 2 552.15191 0 83 566.00000 552.15191 2.45% - 2s * 180 115 31 564.0000000 554.08917 1.76% 11.4 2s 1342 342 561.96000 26 46 564.00000 556.89130 1.26% 11.7 5s * 1940 386 22 563.0000000 557.80000 0.92% 11.3 5s Cutting planes: Gomory: 2 MIR: 1 Zero half: 13 Explored 3662 nodes (37614 simplex iterations) in 7.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (5, 19), (6, 50), (10, 51), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (18, 45), (31, 35)] adding cut for [(38, 43), (7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] Optimize a model with 399 rows, 1275 columns and 74964 nonzeros Presolve time: 0.04s Presolved: 399 rows, 1275 columns, 74964 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 56 566.00000 551.46399 2.57% - 0s 0 0 551.48318 0 63 566.00000 551.48318 2.56% - 0s 0 0 551.62989 0 68 566.00000 551.62989 2.54% - 0s 0 0 551.63471 0 65 566.00000 551.63471 2.54% - 0s 0 0 551.63471 0 69 566.00000 551.63471 2.54% - 0s 0 0 551.72333 0 67 566.00000 551.72333 2.52% - 0s 0 0 551.72333 0 71 566.00000 551.72333 2.52% - 0s 0 0 551.73296 0 69 566.00000 551.73296 2.52% - 0s 0 0 551.73296 0 73 566.00000 551.73296 2.52% - 0s 0 0 551.77461 0 76 566.00000 551.77461 2.51% - 0s 0 0 551.83665 0 78 566.00000 551.83665 2.50% - 0s 0 0 551.88931 0 67 566.00000 551.88931 2.49% - 0s 0 0 551.96493 0 74 566.00000 551.96493 2.48% - 0s 0 0 551.96939 0 78 566.00000 551.96939 2.48% - 0s 0 0 551.97027 0 80 566.00000 551.97027 2.48% - 0s 0 0 551.97854 0 77 566.00000 551.97854 2.48% - 0s 0 0 551.97854 0 80 566.00000 551.97854 2.48% - 0s 0 0 551.99126 0 81 566.00000 551.99126 2.48% - 0s 0 0 551.99769 0 83 566.00000 551.99769 2.47% - 0s 0 0 552.00136 0 84 566.00000 552.00136 2.47% - 1s 0 0 552.01387 0 82 566.00000 552.01387 2.47% - 1s 0 0 552.02877 0 83 566.00000 552.02877 2.47% - 1s 0 0 552.04883 0 82 566.00000 552.04883 2.46% - 1s 0 2 552.12694 0 82 566.00000 552.12694 2.45% - 1s * 45 31 38 564.0000000 553.64762 1.84% 10.8 1s * 91 51 22 563.0000000 553.96569 1.60% 11.0 1s 2024 216 559.70000 19 53 563.00000 558.77778 0.75% 11.6 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 13 Explored 2820 nodes (31019 simplex iterations) in 5.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (36, 37), (6, 50), (9, 27), (11, 34), (11, 50), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 40)] adding cut for [(5, 18), (41, 42), (43, 45), (45, 46), (16, 38), (16, 46), (18, 38), (20, 41), (20, 43), (14, 42), (14, 19)] Optimize a model with 401 rows, 1275 columns and 75166 nonzeros Presolve time: 0.04s Presolved: 401 rows, 1275 columns, 75166 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 585.0000000 550.44048 5.91% - 0s 0 0 551.46399 0 62 585.00000 551.46399 5.73% - 0s 0 0 551.50660 0 68 585.00000 551.50660 5.73% - 0s 0 0 551.52700 0 63 585.00000 551.52700 5.72% - 0s 0 0 551.52700 0 56 585.00000 551.52700 5.72% - 0s 0 0 551.52700 0 62 585.00000 551.52700 5.72% - 0s 0 0 551.52700 0 63 585.00000 551.52700 5.72% - 0s 0 0 551.52700 0 67 585.00000 551.52700 5.72% - 0s 0 0 551.54156 0 64 585.00000 551.54156 5.72% - 0s 0 0 551.54156 0 68 585.00000 551.54156 5.72% - 0s 0 0 551.59872 0 68 585.00000 551.59872 5.71% - 0s 0 0 551.60402 0 72 585.00000 551.60402 5.71% - 0s 0 0 551.65038 0 75 585.00000 551.65038 5.70% - 0s 0 0 551.69935 0 74 585.00000 551.69935 5.69% - 0s 0 0 551.77747 0 69 585.00000 551.77747 5.68% - 0s 0 0 551.77828 0 71 585.00000 551.77828 5.68% - 0s 0 0 551.78247 0 74 585.00000 551.78247 5.68% - 1s 0 0 551.78247 0 75 585.00000 551.78247 5.68% - 1s 0 0 551.79867 0 75 585.00000 551.79867 5.68% - 1s 0 0 551.79967 0 77 585.00000 551.79967 5.68% - 1s 0 0 551.80072 0 77 585.00000 551.80072 5.68% - 1s 0 0 551.81246 0 78 585.00000 551.81246 5.67% - 1s 0 0 551.81998 0 81 585.00000 551.81998 5.67% - 1s 0 0 551.82171 0 80 585.00000 551.82171 5.67% - 1s 0 0 551.82171 0 81 585.00000 551.82171 5.67% - 1s 0 0 551.82667 0 80 585.00000 551.82667 5.67% - 1s 0 0 551.83433 0 81 585.00000 551.83433 5.67% - 1s 0 0 551.83658 0 80 585.00000 551.83658 5.67% - 1s 0 0 551.84157 0 79 585.00000 551.84157 5.67% - 1s 0 0 551.84157 0 80 585.00000 551.84157 5.67% - 1s 0 0 551.84317 0 83 585.00000 551.84317 5.67% - 1s H 0 0 582.0000000 551.84317 5.18% - 2s H 0 0 576.0000000 551.84317 4.19% - 2s H 0 0 567.0000000 551.84317 2.67% - 2s 0 2 551.84803 0 83 567.00000 551.84803 2.67% - 2s * 130 86 39 566.0000000 553.90472 2.14% 9.7 2s * 498 255 13 565.0000000 554.69262 1.82% 10.0 3s * 502 226 14 564.0000000 554.69262 1.65% 10.0 3s 1114 352 562.38462 22 46 564.00000 556.40952 1.35% 11.0 5s * 1514 291 32 563.0000000 557.43246 0.99% 10.9 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 3096 nodes (31557 simplex iterations) in 6.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (5, 19), (6, 50), (10, 51), (10, 50), (11, 40), (11, 31), (16, 46), (16, 18), (31, 35)] adding cut for [(3, 33), (3, 4), (4, 37), (12, 39), (17, 39), (17, 22), (21, 36), (21, 30), (22, 30), (36, 37)] Optimize a model with 403 rows, 1275 columns and 75312 nonzeros Presolve time: 0.04s Presolved: 403 rows, 1275 columns, 75312 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 563.0000000 550.44048 2.23% - 0s 0 0 551.46399 0 62 563.00000 551.46399 2.05% - 0s 0 0 551.46399 0 56 563.00000 551.46399 2.05% - 0s 0 0 551.46399 0 62 563.00000 551.46399 2.05% - 0s 0 0 551.46399 0 66 563.00000 551.46399 2.05% - 0s 0 0 551.50332 0 65 563.00000 551.50332 2.04% - 0s 0 0 551.50332 0 69 563.00000 551.50332 2.04% - 0s 0 0 551.61306 0 64 563.00000 551.61306 2.02% - 0s 0 0 551.61799 0 69 563.00000 551.61799 2.02% - 0s 0 0 551.63677 0 64 563.00000 551.63677 2.02% - 0s 0 0 551.64005 0 69 563.00000 551.64005 2.02% - 0s 0 0 551.65297 0 75 563.00000 551.65297 2.02% - 0s 0 0 551.68309 0 66 563.00000 551.68309 2.01% - 0s 0 0 551.68748 0 72 563.00000 551.68748 2.01% - 0s 0 0 551.69675 0 71 563.00000 551.69675 2.01% - 0s 0 0 551.70432 0 71 563.00000 551.70432 2.01% - 0s 0 0 551.73399 0 67 563.00000 551.73399 2.00% - 0s 0 0 551.73425 0 72 563.00000 551.73425 2.00% - 0s 0 0 551.75334 0 78 563.00000 551.75334 2.00% - 0s 0 0 551.76081 0 67 563.00000 551.76081 2.00% - 0s 0 0 551.76357 0 78 563.00000 551.76357 2.00% - 0s 0 0 551.76439 0 77 563.00000 551.76439 2.00% - 0s 0 0 551.76439 0 79 563.00000 551.76439 2.00% - 0s 0 0 551.76439 0 80 563.00000 551.76439 2.00% - 0s 0 2 551.80095 0 80 563.00000 551.80095 1.99% - 1s 2560 140 cutoff 19 563.00000 559.71875 0.58% 10.9 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 11 Mod-K: 1 Explored 2854 nodes (30441 simplex iterations) in 5.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 4), (4, 37), (10, 51), (10, 31), (12, 39), (17, 51), (17, 39), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (31, 35)] Optimize a model with 404 rows, 1275 columns and 75417 nonzeros Presolve time: 0.04s Presolved: 404 rows, 1275 columns, 75417 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.44048 3.26% - 0s 0 0 551.48318 0 63 569.00000 551.48318 3.08% - 0s 0 0 551.48318 0 56 569.00000 551.48318 3.08% - 0s 0 0 551.62989 0 64 569.00000 551.62989 3.05% - 0s 0 0 551.62989 0 68 569.00000 551.62989 3.05% - 0s 0 0 551.63327 0 65 569.00000 551.63327 3.05% - 0s 0 0 551.63327 0 69 569.00000 551.63327 3.05% - 0s 0 0 551.71807 0 67 569.00000 551.71807 3.04% - 0s 0 0 551.71807 0 71 569.00000 551.71807 3.04% - 0s 0 0 551.74564 0 70 569.00000 551.74564 3.03% - 0s 0 0 551.74564 0 74 569.00000 551.74564 3.03% - 0s 0 0 551.77667 0 70 569.00000 551.77667 3.03% - 0s 0 0 551.77984 0 75 569.00000 551.77984 3.03% - 0s 0 0 551.78323 0 77 569.00000 551.78323 3.03% - 0s 0 0 551.80405 0 77 569.00000 551.80405 3.02% - 0s 0 0 551.81754 0 75 569.00000 551.81754 3.02% - 0s 0 0 551.82587 0 70 569.00000 551.82587 3.02% - 0s 0 0 551.82587 0 74 569.00000 551.82587 3.02% - 0s 0 0 551.83246 0 70 569.00000 551.83246 3.02% - 0s H 0 0 564.0000000 551.83246 2.16% - 0s 0 0 551.83246 0 74 564.00000 551.83246 2.16% - 1s 0 2 552.38800 0 74 564.00000 552.38800 2.06% - 1s * 407 174 30 563.0000000 555.63934 1.31% 12.0 4s 1329 349 559.50000 18 56 563.00000 558.16667 0.86% 10.8 5s Cutting planes: Gomory: 11 MIR: 9 Zero half: 17 Explored 2951 nodes (29580 simplex iterations) in 6.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(5, 14), (5, 48), (10, 17), (10, 39), (11, 40), (11, 50), (12, 39), (14, 42), (16, 38), (16, 46), (17, 30), (20, 41), (20, 42), (22, 30), (22, 51), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (38, 45), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (8, 24), (8, 27), (9, 32), (9, 27), (15, 25), (15, 26), (19, 26), (25, 44), (21, 36), (24, 44), (4, 37), (4, 29), (29, 32)] Optimize a model with 406 rows, 1275 columns and 75846 nonzeros Presolve time: 0.04s Presolved: 406 rows, 1275 columns, 75846 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.44048 3.43% - 0s 0 0 551.48318 0 63 570.00000 551.48318 3.25% - 0s 0 0 551.48318 0 56 570.00000 551.48318 3.25% - 0s 0 0 551.65938 0 62 570.00000 551.65938 3.22% - 0s 0 0 551.65938 0 66 570.00000 551.65938 3.22% - 0s 0 0 551.66273 0 63 570.00000 551.66273 3.22% - 0s 0 0 551.66273 0 67 570.00000 551.66273 3.22% - 0s 0 0 551.68181 0 64 570.00000 551.68181 3.21% - 0s 0 0 551.68181 0 68 570.00000 551.68181 3.21% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 2 551.79237 0 73 570.00000 551.79237 3.19% - 1s H 64 21 563.0000000 553.79977 1.63% 8.7 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 3 Explored 2054 nodes (21029 simplex iterations) in 4.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (17, 22), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 48), (5, 18), (8, 44), (8, 24), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (18, 43), (20, 41), (20, 42), (24, 49), (25, 44)] Optimize a model with 408 rows, 1275 columns and 76161 nonzeros Presolve time: 0.04s Presolved: 408 rows, 1275 columns, 76161 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.44048 3.43% - 0s 0 0 551.48318 0 63 570.00000 551.48318 3.25% - 0s 0 0 551.48318 0 56 570.00000 551.48318 3.25% - 0s 0 0 551.65938 0 62 570.00000 551.65938 3.22% - 0s 0 0 551.65938 0 66 570.00000 551.65938 3.22% - 0s 0 0 551.66273 0 63 570.00000 551.66273 3.22% - 0s 0 0 551.66273 0 67 570.00000 551.66273 3.22% - 0s 0 0 551.68181 0 64 570.00000 551.68181 3.21% - 0s 0 0 551.68181 0 68 570.00000 551.68181 3.21% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 69 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 0 551.78329 0 73 570.00000 551.78329 3.20% - 0s 0 2 551.79237 0 73 570.00000 551.79237 3.19% - 1s H 64 28 565.0000000 553.79977 1.98% 8.7 1s * 191 89 12 564.0000000 554.44030 1.69% 11.1 1s * 2307 317 32 563.0000000 559.08163 0.70% 10.6 4s 2520 283 561.38462 36 39 563.00000 559.66667 0.59% 10.5 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 3 Explored 3144 nodes (31825 simplex iterations) in 5.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (6, 16), (39, 50), (10, 35), (10, 50), (11, 40), (11, 31), (12, 39), (16, 46), (31, 35)] Optimize a model with 410 rows, 1275 columns and 76332 nonzeros Presolve time: 0.04s Presolved: 410 rows, 1275 columns, 76332 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 121 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.46399 0 62 566.00000 551.46399 2.57% - 0s 0 0 551.46399 0 56 566.00000 551.46399 2.57% - 0s 0 0 551.48318 0 63 566.00000 551.48318 2.56% - 0s 0 0 551.62989 0 68 566.00000 551.62989 2.54% - 0s 0 0 551.63471 0 65 566.00000 551.63471 2.54% - 0s 0 0 551.63471 0 69 566.00000 551.63471 2.54% - 0s 0 0 551.72333 0 67 566.00000 551.72333 2.52% - 0s 0 0 551.72333 0 71 566.00000 551.72333 2.52% - 0s 0 0 551.73256 0 69 566.00000 551.73256 2.52% - 0s 0 0 551.73256 0 73 566.00000 551.73256 2.52% - 0s 0 0 551.77656 0 73 566.00000 551.77656 2.51% - 0s 0 0 551.78221 0 76 566.00000 551.78221 2.51% - 0s 0 0 551.83105 0 74 566.00000 551.83105 2.50% - 0s 0 0 551.85467 0 77 566.00000 551.85467 2.50% - 0s 0 0 551.87842 0 81 566.00000 551.87842 2.49% - 0s 0 0 551.90528 0 81 566.00000 551.90528 2.49% - 0s 0 0 551.97934 0 78 566.00000 551.97934 2.48% - 0s 0 0 551.99685 0 82 566.00000 551.99685 2.47% - 0s 0 0 552.00994 0 76 566.00000 552.00994 2.47% - 0s 0 0 552.01091 0 79 566.00000 552.01091 2.47% - 0s 0 0 552.01091 0 79 566.00000 552.01091 2.47% - 1s 0 2 552.02707 0 79 566.00000 552.02707 2.47% - 1s H 51 27 565.0000000 553.70922 2.00% 9.6 1s * 171 108 19 564.0000000 553.90478 1.79% 10.6 1s 2181 386 559.87255 33 55 564.00000 559.00000 0.89% 10.6 5s * 2455 343 31 563.0000000 559.37500 0.64% 10.5 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Mod-K: 1 Explored 3308 nodes (33161 simplex iterations) in 5.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 42), (11, 31), (11, 40), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 411 rows, 1275 columns and 76632 nonzeros Presolve time: 0.04s Presolved: 411 rows, 1275 columns, 76632 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 564.0000000 550.44048 2.40% - 0s 0 0 551.50340 0 59 564.00000 551.50340 2.22% - 0s 0 0 551.50340 0 56 564.00000 551.50340 2.22% - 0s 0 0 551.50340 0 59 564.00000 551.50340 2.22% - 0s 0 0 551.65742 0 62 564.00000 551.65742 2.19% - 0s 0 0 551.65742 0 66 564.00000 551.65742 2.19% - 0s 0 0 551.66781 0 64 564.00000 551.66781 2.19% - 0s 0 0 551.66781 0 68 564.00000 551.66781 2.19% - 0s 0 0 551.75490 0 68 564.00000 551.75490 2.17% - 0s 0 0 551.75490 0 72 564.00000 551.75490 2.17% - 0s 0 0 551.77574 0 71 564.00000 551.77574 2.17% - 0s 0 0 551.77574 0 75 564.00000 551.77574 2.17% - 0s 0 0 551.81202 0 68 564.00000 551.81202 2.16% - 0s 0 0 551.81202 0 72 564.00000 551.81202 2.16% - 0s 0 0 551.83320 0 72 564.00000 551.83320 2.16% - 0s 0 0 551.84103 0 73 564.00000 551.84103 2.16% - 0s 0 2 551.84771 0 73 564.00000 551.84771 2.15% - 1s * 2090 346 27 563.0000000 558.12206 0.87% 10.6 4s 2594 309 cutoff 26 563.00000 559.14286 0.69% 10.5 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 3337 nodes (33684 simplex iterations) in 5.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(6, 39), (7, 24), (8, 24), (8, 44), (11, 40), (11, 50), (14, 26), (14, 42), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 43), (25, 26), (25, 44), (34, 40), (34, 46), (39, 50), (41, 42), (43, 45)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 51), (10, 31), (12, 17), (17, 51), (3, 21), (3, 30), (21, 36), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 413 rows, 1275 columns and 77016 nonzeros Presolve time: 0.04s Presolved: 413 rows, 1275 columns, 77016 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.53674 0 61 566.00000 551.53674 2.56% - 0s 0 0 551.53674 0 56 566.00000 551.53674 2.56% - 0s 0 0 551.53674 0 61 566.00000 551.53674 2.56% - 0s 0 0 551.65938 0 62 566.00000 551.65938 2.53% - 0s 0 0 551.65938 0 66 566.00000 551.65938 2.53% - 0s 0 0 551.66787 0 64 566.00000 551.66787 2.53% - 0s 0 0 551.66787 0 68 566.00000 551.66787 2.53% - 0s 0 0 551.76517 0 66 566.00000 551.76517 2.51% - 0s 0 0 551.76517 0 70 566.00000 551.76517 2.51% - 0s 0 0 551.77388 0 71 566.00000 551.77388 2.51% - 0s 0 0 551.77388 0 75 566.00000 551.77388 2.51% - 0s 0 0 551.81436 0 71 566.00000 551.81436 2.51% - 0s 0 0 551.84374 0 74 566.00000 551.84374 2.50% - 0s 0 0 551.87115 0 67 566.00000 551.87115 2.50% - 0s 0 0 551.87295 0 71 566.00000 551.87295 2.50% - 0s 0 0 551.89914 0 72 566.00000 551.89914 2.49% - 0s 0 0 551.90474 0 76 566.00000 551.90474 2.49% - 0s 0 0 551.92192 0 78 566.00000 551.92192 2.49% - 0s 0 0 551.93927 0 73 566.00000 551.93927 2.48% - 0s 0 0 551.93927 0 76 566.00000 551.93927 2.48% - 0s 0 0 551.97258 0 75 566.00000 551.97258 2.48% - 0s 0 0 551.97292 0 77 566.00000 551.97292 2.48% - 0s 0 2 551.98634 0 77 566.00000 551.98634 2.48% - 1s * 71 39 20 565.0000000 553.90044 1.96% 11.6 1s * 349 171 17 564.0000000 555.67742 1.48% 11.8 2s 2158 279 561.25000 27 44 564.00000 559.88889 0.73% 11.2 5s * 2827 154 32 563.0000000 561.00000 0.36% 10.5 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 3057 nodes (31485 simplex iterations) in 5.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.630000000000e+02, best bound 5.630000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 50), (16, 18), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 18), (5, 19), (29, 32), (31, 35), (31, 50)] adding cut for [(6, 38), (38, 45), (41, 42), (43, 45), (14, 42), (14, 26), (15, 26), (20, 41), (20, 43)] Optimize a model with 415 rows, 1275 columns and 77271 nonzeros Presolve time: 0.04s Presolved: 415 rows, 1275 columns, 77271 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start 0 0 551.50340 0 59 1672.00000 551.50340 67.0% - 0s 0 0 551.65938 0 62 1672.00000 551.65938 67.0% - 0s 0 0 551.65938 0 66 1672.00000 551.65938 67.0% - 0s 0 0 551.66273 0 63 1672.00000 551.66273 67.0% - 0s H 0 0 815.0000000 551.66273 32.3% - 0s H 0 0 583.0000000 551.66273 5.38% - 0s H 0 0 576.0000000 551.66273 4.23% - 0s 0 0 551.66273 0 67 576.00000 551.66273 4.23% - 0s 0 0 551.66273 0 56 576.00000 551.66273 4.23% - 0s 0 0 551.66273 0 62 576.00000 551.66273 4.23% - 0s 0 0 551.66273 0 67 576.00000 551.66273 4.23% - 0s 0 0 551.68181 0 64 576.00000 551.68181 4.22% - 0s 0 0 551.68181 0 68 576.00000 551.68181 4.22% - 0s 0 0 551.78479 0 69 576.00000 551.78479 4.20% - 0s 0 0 551.78479 0 73 576.00000 551.78479 4.20% - 0s 0 0 551.78540 0 68 576.00000 551.78540 4.20% - 0s 0 0 551.78659 0 77 576.00000 551.78659 4.20% - 1s 0 0 551.79113 0 77 576.00000 551.79113 4.20% - 1s 0 0 551.79431 0 72 576.00000 551.79431 4.20% - 1s 0 0 551.79431 0 73 576.00000 551.79431 4.20% - 1s 0 0 551.80981 0 77 576.00000 551.80981 4.20% - 1s 0 0 551.82208 0 75 576.00000 551.82208 4.20% - 1s 0 0 551.85894 0 78 576.00000 551.85894 4.19% - 1s 0 0 551.86112 0 79 576.00000 551.86112 4.19% - 1s 0 0 551.86915 0 76 576.00000 551.86915 4.19% - 1s 0 0 551.86941 0 77 576.00000 551.86941 4.19% - 1s 0 2 551.87159 0 77 576.00000 551.87159 4.19% - 2s H 34 31 567.0000000 553.00000 2.47% 11.6 2s * 252 133 22 564.0000000 554.17241 1.74% 11.5 2s 1336 240 558.25000 25 51 564.00000 557.41379 1.17% 11.0 5s Cutting planes: Gomory: 2 MIR: 1 Zero half: 10 Explored 3937 nodes (38527 simplex iterations) in 7.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (20, 41), (20, 42), (21, 36), (22, 30), (22, 51), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (31, 40), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 416 rows, 1275 columns and 77767 nonzeros Presolve time: 0.04s Presolved: 416 rows, 1275 columns, 77767 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 575.0000000 550.44048 4.27% - 0s 0 0 551.51935 0 61 575.00000 551.51935 4.08% - 0s 0 0 551.51935 0 56 575.00000 551.51935 4.08% - 0s 0 0 551.69739 0 64 575.00000 551.69739 4.05% - 0s 0 0 551.69739 0 68 575.00000 551.69739 4.05% - 0s 0 0 551.74298 0 66 575.00000 551.74298 4.04% - 0s 0 0 551.74298 0 70 575.00000 551.74298 4.04% - 0s 0 0 551.74803 0 66 575.00000 551.74803 4.04% - 0s 0 0 551.74803 0 70 575.00000 551.74803 4.04% - 0s 0 0 551.76023 0 68 575.00000 551.76023 4.04% - 0s 0 0 551.76023 0 72 575.00000 551.76023 4.04% - 0s 0 0 551.76916 0 66 575.00000 551.76916 4.04% - 0s 0 0 551.76916 0 70 575.00000 551.76916 4.04% - 0s 0 0 551.78742 0 69 575.00000 551.78742 4.04% - 0s H 0 0 571.0000000 551.78742 3.36% - 1s H 0 0 564.0000000 551.78742 2.17% - 1s 0 2 551.94721 0 69 564.00000 551.94721 2.14% - 1s 2436 409 559.83871 30 52 564.00000 559.11111 0.87% 10.1 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 6 Explored 4147 nodes (40046 simplex iterations) in 6.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(10, 31), (10, 39), (11, 40), (11, 50), (12, 17), (14, 26), (14, 42), (15, 26), (16, 38), (16, 46), (17, 51), (18, 38), (18, 45), (20, 41), (20, 43), (22, 35), (22, 51), (31, 35), (34, 40), (34, 46), (39, 50), (41, 42), (43, 45)] Optimize a model with 417 rows, 1275 columns and 78043 nonzeros Presolve time: 0.04s Presolved: 417 rows, 1275 columns, 78043 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start 0 0 551.51935 0 61 1672.00000 551.51935 67.0% - 0s 0 0 551.51935 0 65 1672.00000 551.51935 67.0% - 0s 0 0 551.57495 0 65 1672.00000 551.57495 67.0% - 0s H 0 0 823.0000000 551.57495 33.0% - 0s H 0 0 598.0000000 551.57495 7.76% - 0s H 0 0 586.0000000 551.57495 5.87% - 0s 0 0 551.57495 0 69 586.00000 551.57495 5.87% - 0s 0 0 551.59104 0 63 586.00000 551.59104 5.87% - 0s 0 0 551.72863 0 71 586.00000 551.72863 5.85% - 0s 0 0 551.74332 0 70 586.00000 551.74332 5.85% - 0s 0 0 551.79924 0 65 586.00000 551.79924 5.84% - 0s 0 0 551.79924 0 69 586.00000 551.79924 5.84% - 0s 0 0 551.82926 0 72 586.00000 551.82926 5.83% - 0s 0 0 551.82926 0 73 586.00000 551.82926 5.83% - 0s 0 0 551.87025 0 73 586.00000 551.87025 5.82% - 0s 0 0 551.87124 0 75 586.00000 551.87124 5.82% - 0s 0 0 551.88910 0 74 586.00000 551.88910 5.82% - 1s 0 0 551.88910 0 75 586.00000 551.88910 5.82% - 1s 0 0 551.90730 0 71 586.00000 551.90730 5.82% - 1s 0 0 551.92552 0 74 586.00000 551.92552 5.81% - 1s 0 0 552.01851 0 73 586.00000 552.01851 5.80% - 1s 0 0 552.01851 0 74 586.00000 552.01851 5.80% - 1s 0 0 552.04566 0 75 586.00000 552.04566 5.79% - 1s 0 0 552.04566 0 76 586.00000 552.04566 5.79% - 1s 0 0 552.06657 0 76 586.00000 552.06657 5.79% - 1s 0 0 552.06657 0 77 586.00000 552.06657 5.79% - 1s 0 0 552.09098 0 73 586.00000 552.09098 5.79% - 1s 0 0 552.09277 0 79 586.00000 552.09277 5.79% - 1s 0 0 552.09721 0 77 586.00000 552.09721 5.79% - 1s 0 0 552.10007 0 83 586.00000 552.10007 5.78% - 1s H 0 0 584.0000000 552.10007 5.46% - 2s H 0 0 568.0000000 552.10007 2.80% - 2s H 0 0 567.0000000 552.10007 2.63% - 2s 0 0 552.10007 0 56 567.00000 552.10007 2.63% - 2s 0 0 552.10007 0 67 567.00000 552.10007 2.63% - 2s 0 0 552.10007 0 79 567.00000 552.10007 2.63% - 2s 0 0 552.10007 0 82 567.00000 552.10007 2.63% - 2s 0 0 552.10007 0 81 567.00000 552.10007 2.63% - 2s 0 0 552.12793 0 80 567.00000 552.12793 2.62% - 2s 0 0 552.13915 0 79 567.00000 552.13915 2.62% - 2s 0 0 552.14363 0 79 567.00000 552.14363 2.62% - 2s 0 0 552.19542 0 79 567.00000 552.19542 2.61% - 2s 0 0 552.20244 0 81 567.00000 552.20244 2.61% - 2s 0 0 552.22636 0 79 567.00000 552.22636 2.61% - 3s 0 0 552.23022 0 85 567.00000 552.23022 2.60% - 3s 0 0 552.24946 0 80 567.00000 552.24946 2.60% - 3s H 0 0 566.0000000 552.24946 2.43% - 3s 0 2 552.31647 0 80 566.00000 552.31647 2.42% - 3s * 32 24 27 565.0000000 553.40053 2.05% 14.2 3s * 150 87 12 564.0000000 554.59019 1.67% 12.3 4s 601 286 560.33333 12 83 564.00000 556.40000 1.35% 11.3 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Mod-K: 1 Explored 4644 nodes (47252 simplex iterations) in 9.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (19, 26), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (23, 29), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 418 rows, 1275 columns and 78421 nonzeros Presolve time: 0.04s Presolved: 418 rows, 1275 columns, 78421 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.51935 0 61 568.00000 551.51935 2.90% - 0s 0 0 551.51935 0 56 568.00000 551.51935 2.90% - 0s 0 0 551.69739 0 64 568.00000 551.69739 2.87% - 0s 0 0 551.69739 0 68 568.00000 551.69739 2.87% - 0s 0 0 551.74226 0 66 568.00000 551.74226 2.86% - 0s 0 0 551.74226 0 70 568.00000 551.74226 2.86% - 0s 0 0 551.78523 0 63 568.00000 551.78523 2.85% - 0s 0 0 551.79505 0 67 568.00000 551.79505 2.85% - 0s 0 0 551.81823 0 72 568.00000 551.81823 2.85% - 0s 0 0 551.85830 0 63 568.00000 551.85830 2.84% - 0s 0 0 551.86006 0 71 568.00000 551.86006 2.84% - 0s 0 0 551.87023 0 69 568.00000 551.87023 2.84% - 0s 0 0 551.87023 0 73 568.00000 551.87023 2.84% - 0s 0 0 551.89992 0 74 568.00000 551.89992 2.83% - 0s 0 0 551.90819 0 76 568.00000 551.90819 2.83% - 0s 0 0 551.91729 0 76 568.00000 551.91729 2.83% - 0s 0 0 551.91931 0 78 568.00000 551.91931 2.83% - 0s 0 0 551.92492 0 78 568.00000 551.92492 2.83% - 0s H 0 0 567.0000000 551.92492 2.66% - 1s 0 2 551.92919 0 78 567.00000 551.92919 2.66% - 1s H 40 28 566.0000000 553.86840 2.14% 12.8 1s H 111 70 564.0000000 554.05556 1.76% 11.8 1s 2208 344 562.12500 26 39 564.00000 559.35106 0.82% 11.1 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 3838 nodes (38745 simplex iterations) in 6.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 48), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 39), (14, 26), (14, 42), (15, 25), (15, 26), (17, 22), (17, 51), (18, 45), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 419 rows, 1275 columns and 78856 nonzeros Presolve time: 0.04s Presolved: 419 rows, 1275 columns, 78856 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.44048 3.60% - 0s 0 0 551.51935 0 61 571.00000 551.51935 3.41% - 0s 0 0 551.51935 0 56 571.00000 551.51935 3.41% - 0s 0 0 551.69739 0 64 571.00000 551.69739 3.38% - 0s 0 0 551.69739 0 68 571.00000 551.69739 3.38% - 0s 0 0 551.74226 0 66 571.00000 551.74226 3.37% - 0s 0 0 551.74226 0 70 571.00000 551.74226 3.37% - 0s 0 0 551.78523 0 63 571.00000 551.78523 3.37% - 0s 0 0 551.79505 0 67 571.00000 551.79505 3.36% - 0s 0 0 551.81823 0 72 571.00000 551.81823 3.36% - 0s 0 0 551.85830 0 63 571.00000 551.85830 3.35% - 0s 0 0 551.86006 0 71 571.00000 551.86006 3.35% - 0s 0 0 551.87023 0 69 571.00000 551.87023 3.35% - 0s 0 0 551.87023 0 73 571.00000 551.87023 3.35% - 0s 0 0 551.89992 0 74 571.00000 551.89992 3.35% - 0s 0 0 551.90819 0 76 571.00000 551.90819 3.34% - 0s 0 0 551.91729 0 76 571.00000 551.91729 3.34% - 0s 0 0 551.91931 0 78 571.00000 551.91931 3.34% - 0s 0 0 551.92492 0 78 571.00000 551.92492 3.34% - 0s H 0 0 567.0000000 551.92492 2.66% - 1s 0 2 551.92919 0 78 567.00000 551.92919 2.66% - 1s * 59 43 19 564.0000000 553.86840 1.80% 13.3 1s 2198 299 cutoff 33 564.00000 559.43750 0.81% 10.6 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 3706 nodes (36515 simplex iterations) in 6.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (9, 27), (10, 39), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(8, 44), (8, 24), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (18, 38), (18, 43), (20, 41), (20, 42), (24, 49), (25, 44)] adding cut for [(34, 40), (34, 46), (5, 45), (5, 19), (6, 50), (11, 40), (11, 50), (16, 45), (16, 46)] Optimize a model with 422 rows, 1275 columns and 79097 nonzeros Presolve time: 0.04s Presolved: 422 rows, 1275 columns, 79097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.51935 0 61 568.00000 551.51935 2.90% - 0s 0 0 551.51935 0 56 568.00000 551.51935 2.90% - 0s 0 0 551.69739 0 64 568.00000 551.69739 2.87% - 0s 0 0 551.69739 0 68 568.00000 551.69739 2.87% - 0s 0 0 551.74226 0 66 568.00000 551.74226 2.86% - 0s 0 0 551.74226 0 70 568.00000 551.74226 2.86% - 0s 0 0 551.78523 0 63 568.00000 551.78523 2.85% - 0s 0 0 551.79505 0 67 568.00000 551.79505 2.85% - 0s 0 0 551.81823 0 72 568.00000 551.81823 2.85% - 0s 0 0 551.85830 0 63 568.00000 551.85830 2.84% - 0s 0 0 551.86006 0 71 568.00000 551.86006 2.84% - 0s 0 0 551.87023 0 69 568.00000 551.87023 2.84% - 0s 0 0 551.87023 0 73 568.00000 551.87023 2.84% - 0s 0 0 551.89992 0 74 568.00000 551.89992 2.83% - 0s 0 0 551.90819 0 76 568.00000 551.90819 2.83% - 0s 0 0 551.91729 0 76 568.00000 551.91729 2.83% - 0s 0 0 551.91931 0 78 568.00000 551.91931 2.83% - 0s 0 0 551.92492 0 78 568.00000 551.92492 2.83% - 0s H 0 0 566.0000000 551.92492 2.49% - 1s 0 2 551.92919 0 78 566.00000 551.92919 2.49% - 1s H 54 38 565.0000000 553.86840 1.97% 12.6 1s H 566 244 564.0000000 556.25000 1.37% 11.3 2s 1995 311 561.09524 29 48 564.00000 559.28571 0.84% 11.5 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 3724 nodes (37839 simplex iterations) in 6.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 42), (10, 31), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 423 rows, 1275 columns and 79475 nonzeros Presolve time: 0.04s Presolved: 423 rows, 1275 columns, 79475 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.44048 3.43% - 0s 0 0 551.51935 0 61 570.00000 551.51935 3.24% - 0s 0 0 551.51935 0 56 570.00000 551.51935 3.24% - 0s 0 0 551.69739 0 64 570.00000 551.69739 3.21% - 0s 0 0 551.69739 0 68 570.00000 551.69739 3.21% - 0s 0 0 551.75050 0 65 570.00000 551.75050 3.20% - 0s 0 0 551.75050 0 69 570.00000 551.75050 3.20% - 0s 0 0 551.76730 0 65 570.00000 551.76730 3.20% - 0s 0 0 551.76730 0 69 570.00000 551.76730 3.20% - 0s 0 0 551.78361 0 67 570.00000 551.78361 3.20% - 0s 0 0 551.79055 0 70 570.00000 551.79055 3.19% - 0s 0 0 551.80816 0 64 570.00000 551.80816 3.19% - 0s 0 0 551.81527 0 68 570.00000 551.81527 3.19% - 0s 0 0 551.85555 0 66 570.00000 551.85555 3.18% - 0s 0 0 551.85816 0 72 570.00000 551.85816 3.18% - 0s 0 0 551.86543 0 73 570.00000 551.86543 3.18% - 0s 0 0 551.87012 0 73 570.00000 551.87012 3.18% - 0s H 0 0 568.0000000 551.87012 2.84% - 1s H 0 0 566.0000000 551.87012 2.50% - 1s 0 2 551.90404 0 73 566.00000 551.90404 2.49% - 1s H 27 23 564.0000000 553.79977 1.81% 13.5 1s 2335 358 561.77169 24 51 564.00000 559.66667 0.77% 10.7 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 3775 nodes (37734 simplex iterations) in 6.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(35, 51), (3, 12), (3, 17), (36, 37), (7, 24), (8, 44), (8, 27), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 25), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (39, 50), (10, 50), (10, 31), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (6, 39)] Optimize a model with 425 rows, 1275 columns and 79737 nonzeros Presolve time: 0.04s Presolved: 425 rows, 1275 columns, 79737 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.56675 0 62 568.00000 551.56675 2.89% - 0s 0 0 551.56675 0 56 568.00000 551.56675 2.89% - 0s 0 0 551.72300 0 63 568.00000 551.72300 2.87% - 0s 0 0 551.72300 0 67 568.00000 551.72300 2.87% - 0s 0 0 551.76871 0 67 568.00000 551.76871 2.86% - 0s 0 0 551.76871 0 71 568.00000 551.76871 2.86% - 0s 0 0 551.81868 0 62 568.00000 551.81868 2.85% - 0s 0 0 551.81868 0 66 568.00000 551.81868 2.85% - 0s 0 0 551.81957 0 66 568.00000 551.81957 2.85% - 0s 0 0 551.81957 0 70 568.00000 551.81957 2.85% - 0s 0 2 551.83318 0 70 568.00000 551.83318 2.85% - 1s * 39 30 29 565.0000000 552.98554 2.13% 11.5 1s H 54 39 564.0000000 553.58818 1.85% 11.8 1s 2680 311 560.33333 18 45 564.00000 559.63889 0.77% 10.7 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 4 Mod-K: 1 Explored 3822 nodes (38814 simplex iterations) in 5.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 19), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37)] adding cut for [(6, 45), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (20, 41), (20, 42)] Optimize a model with 427 rows, 1275 columns and 80004 nonzeros Presolve time: 0.04s Presolved: 427 rows, 1275 columns, 80004 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.44048 3.77% - 0s 0 0 551.56675 0 62 572.00000 551.56675 3.57% - 0s 0 0 551.56675 0 56 572.00000 551.56675 3.57% - 0s 0 0 551.72300 0 63 572.00000 551.72300 3.54% - 0s 0 0 551.72300 0 67 572.00000 551.72300 3.54% - 0s 0 0 551.76871 0 67 572.00000 551.76871 3.54% - 0s 0 0 551.76871 0 71 572.00000 551.76871 3.54% - 0s 0 0 551.81868 0 62 572.00000 551.81868 3.53% - 0s 0 0 551.81868 0 66 572.00000 551.81868 3.53% - 0s 0 0 551.81957 0 66 572.00000 551.81957 3.53% - 0s 0 0 551.81957 0 70 572.00000 551.81957 3.53% - 0s 0 2 551.83318 0 70 572.00000 551.83318 3.53% - 1s * 230 168 32 570.0000000 554.08143 2.79% 10.0 1s * 362 243 23 569.0000000 554.50867 2.55% 10.6 2s * 364 224 22 568.0000000 554.50867 2.38% 10.5 2s * 429 225 26 566.0000000 555.00000 1.94% 10.5 2s * 451 186 20 564.0000000 555.06283 1.58% 10.5 2s 2414 378 561.00000 20 31 564.00000 559.50000 0.80% 10.3 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 6 Mod-K: 1 Explored 3960 nodes (38557 simplex iterations) in 6.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (10, 31), (10, 50), (11, 40), (11, 50), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 428 rows, 1275 columns and 80235 nonzeros Presolve time: 0.04s Presolved: 428 rows, 1275 columns, 80235 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 56 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 66 565.00000 551.56675 2.38% - 0s 0 0 551.67126 0 62 565.00000 551.67126 2.36% - 0s 0 0 551.67126 0 66 565.00000 551.67126 2.36% - 0s 0 0 551.69426 0 63 565.00000 551.69426 2.35% - 0s 0 0 551.69426 0 67 565.00000 551.69426 2.35% - 0s 0 0 551.71095 0 64 565.00000 551.71095 2.35% - 0s 0 0 551.71095 0 68 565.00000 551.71095 2.35% - 0s 0 0 551.71308 0 66 565.00000 551.71308 2.35% - 0s 0 0 551.80989 0 74 565.00000 551.80989 2.33% - 0s 0 0 551.82712 0 73 565.00000 551.82712 2.33% - 0s 0 0 551.85886 0 71 565.00000 551.85886 2.33% - 0s 0 2 551.94246 0 71 565.00000 551.94246 2.31% - 1s H 42 21 564.0000000 553.47262 1.87% 9.5 1s 2640 315 562.83333 27 43 564.00000 559.83333 0.74% 11.0 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 6 Mod-K: 1 Explored 3869 nodes (39203 simplex iterations) in 6.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 39), (12, 39), (17, 22), (17, 51), (21, 30), (21, 36), (22, 30), (24, 25), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37)] Optimize a model with 429 rows, 1275 columns and 80466 nonzeros Presolve time: 0.04s Presolved: 429 rows, 1275 columns, 80466 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 575.0000000 550.44048 4.27% - 0s 0 0 551.56675 0 62 575.00000 551.56675 4.08% - 0s 0 0 551.56675 0 56 575.00000 551.56675 4.08% - 0s 0 0 551.72300 0 63 575.00000 551.72300 4.05% - 0s 0 0 551.72300 0 67 575.00000 551.72300 4.05% - 0s 0 0 551.76871 0 67 575.00000 551.76871 4.04% - 0s 0 0 551.76871 0 71 575.00000 551.76871 4.04% - 0s 0 0 551.80070 0 65 575.00000 551.80070 4.03% - 0s 0 0 551.80070 0 69 575.00000 551.80070 4.03% - 0s 0 0 551.83446 0 62 575.00000 551.83446 4.03% - 0s 0 0 551.83987 0 69 575.00000 551.83987 4.03% - 0s 0 0 551.84450 0 73 575.00000 551.84450 4.03% - 0s 0 0 551.87540 0 70 575.00000 551.87540 4.02% - 0s 0 0 551.87871 0 72 575.00000 551.87871 4.02% - 0s 0 0 551.91142 0 74 575.00000 551.91142 4.02% - 0s 0 0 551.92182 0 74 575.00000 551.92182 4.01% - 0s 0 0 551.93355 0 74 575.00000 551.93355 4.01% - 0s 0 0 551.94759 0 71 575.00000 551.94759 4.01% - 0s 0 0 551.94759 0 72 575.00000 551.94759 4.01% - 1s 0 0 551.94890 0 73 575.00000 551.94890 4.01% - 1s 0 0 551.94890 0 74 575.00000 551.94890 4.01% - 1s H 0 0 565.0000000 551.94890 2.31% - 1s 0 2 551.95086 0 74 565.00000 551.95086 2.31% - 1s H 57 35 564.0000000 553.87804 1.79% 11.4 1s 2125 332 559.93966 25 55 564.00000 559.43662 0.81% 10.5 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 7 Explored 3723 nodes (35501 simplex iterations) in 6.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 22), (3, 23), (36, 37), (9, 49), (9, 27), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(5, 18), (41, 43), (43, 45), (14, 42), (14, 26), (16, 38), (16, 45), (18, 38), (19, 26), (20, 41), (20, 42)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 46)] Optimize a model with 432 rows, 1275 columns and 80629 nonzeros Presolve time: 0.04s Presolved: 432 rows, 1275 columns, 80629 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start 0 0 551.56675 0 62 1672.00000 551.56675 67.0% - 0s 0 0 551.56675 0 66 1672.00000 551.56675 67.0% - 0s 0 0 551.66767 0 63 1672.00000 551.66767 67.0% - 0s H 0 0 739.0000000 551.66767 25.3% - 0s H 0 0 587.0000000 551.66767 6.02% - 0s H 0 0 571.0000000 551.66767 3.39% - 0s 0 0 551.67122 0 66 571.00000 551.67122 3.39% - 0s 0 0 551.67122 0 56 571.00000 551.67122 3.39% - 0s 0 0 551.72300 0 63 571.00000 551.72300 3.38% - 0s 0 0 551.76756 0 64 571.00000 551.76756 3.37% - 0s 0 0 551.80124 0 66 571.00000 551.80124 3.36% - 0s 0 0 551.81492 0 69 571.00000 551.81492 3.36% - 0s H 0 0 567.0000000 551.81492 2.68% - 1s H 0 0 566.0000000 551.81492 2.51% - 1s 0 2 551.83076 0 69 566.00000 551.83076 2.50% - 1s * 35 25 29 565.0000000 552.98554 2.13% 11.5 1s * 352 156 15 564.0000000 555.18333 1.56% 11.3 1s 2731 163 562.53061 28 53 564.00000 560.83333 0.56% 10.7 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 4 Explored 3220 nodes (33182 simplex iterations) in 5.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (6, 38), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (35, 51), (31, 35)] adding cut for [(36, 37), (39, 50), (9, 49), (9, 27), (10, 50), (10, 22), (12, 39), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 434 rows, 1275 columns and 80839 nonzeros Presolve time: 0.04s Presolved: 434 rows, 1275 columns, 80839 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.44048 3.60% - 0s 0 0 551.56675 0 62 571.00000 551.56675 3.40% - 0s 0 0 551.56675 0 56 571.00000 551.56675 3.40% - 0s 0 0 551.72300 0 63 571.00000 551.72300 3.38% - 0s 0 0 551.72300 0 67 571.00000 551.72300 3.38% - 0s 0 0 551.76871 0 67 571.00000 551.76871 3.37% - 0s 0 0 551.76871 0 71 571.00000 551.76871 3.37% - 0s 0 0 551.81868 0 62 571.00000 551.81868 3.36% - 0s 0 0 551.81868 0 66 571.00000 551.81868 3.36% - 0s 0 0 551.81981 0 65 571.00000 551.81981 3.36% - 0s 0 2 551.83403 0 65 571.00000 551.83403 3.36% - 1s * 40 31 33 565.0000000 552.98554 2.13% 12.3 1s * 204 122 17 564.0000000 554.15381 1.75% 11.4 1s 2240 248 cutoff 31 564.00000 559.88204 0.73% 10.9 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 4 Mod-K: 1 Explored 3174 nodes (32716 simplex iterations) in 5.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(6, 50), (7, 24), (8, 24), (8, 44), (10, 31), (10, 39), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (25, 26), (25, 44), (34, 40), (34, 46), (38, 45), (39, 50), (41, 43), (43, 45)] adding cut for [(35, 51), (3, 12), (3, 17), (36, 37), (9, 49), (9, 27), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 29), (4, 37), (4, 23), (27, 32), (29, 32)] Optimize a model with 436 rows, 1275 columns and 81228 nonzeros Presolve time: 0.04s Presolved: 436 rows, 1275 columns, 81228 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.44048 3.43% - 0s 0 0 551.56675 0 62 570.00000 551.56675 3.23% - 0s 0 0 551.56675 0 56 570.00000 551.56675 3.23% - 0s 0 0 551.72300 0 63 570.00000 551.72300 3.21% - 0s 0 0 551.72300 0 67 570.00000 551.72300 3.21% - 0s 0 0 551.76871 0 67 570.00000 551.76871 3.20% - 0s 0 0 551.76871 0 71 570.00000 551.76871 3.20% - 0s 0 0 551.80376 0 68 570.00000 551.80376 3.19% - 0s 0 0 551.80376 0 72 570.00000 551.80376 3.19% - 0s 0 0 551.83984 0 64 570.00000 551.83984 3.19% - 0s 0 0 551.83984 0 68 570.00000 551.83984 3.19% - 0s 0 0 551.84479 0 66 570.00000 551.84479 3.19% - 0s 0 0 551.84479 0 70 570.00000 551.84479 3.19% - 0s 0 0 551.87313 0 69 570.00000 551.87313 3.18% - 0s 0 0 551.87313 0 70 570.00000 551.87313 3.18% - 0s 0 0 551.89478 0 72 570.00000 551.89478 3.18% - 0s 0 0 551.89478 0 73 570.00000 551.89478 3.18% - 0s 0 0 551.92623 0 70 570.00000 551.92623 3.17% - 1s 0 0 551.92623 0 71 570.00000 551.92623 3.17% - 1s 0 0 551.93345 0 74 570.00000 551.93345 3.17% - 1s 0 0 551.93345 0 75 570.00000 551.93345 3.17% - 1s 0 0 551.96406 0 75 570.00000 551.96406 3.16% - 1s 0 0 551.97823 0 75 570.00000 551.97823 3.16% - 1s H 0 0 567.0000000 551.97823 2.65% - 1s 0 2 552.00529 0 75 567.00000 552.00529 2.64% - 1s * 65 41 31 565.0000000 553.73502 1.99% 13.4 2s * 193 109 20 564.0000000 554.41667 1.70% 13.5 2s 1693 268 561.33333 26 40 564.00000 558.58333 0.96% 11.5 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 8 Explored 3545 nodes (35783 simplex iterations) in 6.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 50), (41, 43), (10, 50), (10, 51), (11, 40), (11, 31), (15, 26), (16, 45), (16, 46), (43, 45), (20, 41), (20, 42), (14, 26), (14, 42), (22, 35), (22, 51), (31, 35)] adding cut for [(3, 17), (3, 30), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (12, 39), (17, 39), (25, 44), (21, 36), (21, 30), (23, 29), (24, 25), (4, 37), (4, 23), (29, 32)] Optimize a model with 438 rows, 1275 columns and 81571 nonzeros Presolve time: 0.04s Presolved: 438 rows, 1275 columns, 81571 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 139 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start 0 0 551.56675 0 62 1672.00000 551.56675 67.0% - 0s 0 0 551.56675 0 66 1672.00000 551.56675 67.0% - 0s 0 0 551.66767 0 63 1672.00000 551.66767 67.0% - 0s H 0 0 777.0000000 551.66767 29.0% - 0s H 0 0 587.0000000 551.66767 6.02% - 0s H 0 0 571.0000000 551.66767 3.39% - 0s 0 0 551.67122 0 66 571.00000 551.67122 3.39% - 0s 0 0 551.67122 0 56 571.00000 551.67122 3.39% - 0s 0 0 551.72300 0 63 571.00000 551.72300 3.38% - 0s 0 0 551.76756 0 64 571.00000 551.76756 3.37% - 0s 0 0 551.80124 0 66 571.00000 551.80124 3.36% - 0s 0 0 551.81492 0 69 571.00000 551.81492 3.36% - 0s 0 2 551.83076 0 69 571.00000 551.83076 3.36% - 1s * 38 27 32 566.0000000 552.98554 2.30% 11.7 1s H 68 47 565.0000000 553.79977 1.98% 10.3 1s * 223 105 13 564.0000000 554.46250 1.69% 12.3 1s 2590 191 563.00000 28 40 564.00000 560.60000 0.60% 10.7 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 4 Explored 3166 nodes (31922 simplex iterations) in 5.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(35, 51), (3, 12), (3, 17), (36, 37), (7, 15), (8, 24), (8, 27), (15, 25), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 44), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 39), (39, 50), (10, 50), (10, 31), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38)] Optimize a model with 440 rows, 1275 columns and 81839 nonzeros Presolve time: 0.04s Presolved: 440 rows, 1275 columns, 81839 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 139 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 56 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 66 565.00000 551.56675 2.38% - 0s 0 0 551.66767 0 63 565.00000 551.66767 2.36% - 0s 0 0 551.67122 0 66 565.00000 551.67122 2.36% - 0s 0 0 551.68731 0 68 565.00000 551.68731 2.36% - 0s 0 0 551.69668 0 70 565.00000 551.69668 2.35% - 0s 0 0 551.71525 0 71 565.00000 551.71525 2.35% - 0s 0 0 551.77633 0 65 565.00000 551.77633 2.34% - 0s 0 0 551.85982 0 66 565.00000 551.85982 2.33% - 0s 0 0 551.85982 0 70 565.00000 551.85982 2.33% - 0s 0 0 551.87622 0 70 565.00000 551.87622 2.32% - 0s 0 0 551.87942 0 74 565.00000 551.87942 2.32% - 0s 0 0 551.90617 0 74 565.00000 551.90617 2.32% - 0s 0 0 551.95064 0 71 565.00000 551.95064 2.31% - 0s 0 0 551.95064 0 74 565.00000 551.95064 2.31% - 0s 0 0 551.97946 0 72 565.00000 551.97946 2.30% - 0s 0 0 551.97946 0 75 565.00000 551.97946 2.30% - 0s 0 0 551.98388 0 74 565.00000 551.98388 2.30% - 0s 0 0 551.98873 0 72 565.00000 551.98873 2.30% - 0s 0 0 551.98873 0 75 565.00000 551.98873 2.30% - 0s 0 0 551.99239 0 75 565.00000 551.99239 2.30% - 0s 0 0 551.99297 0 79 565.00000 551.99297 2.30% - 0s 0 0 552.00877 0 70 565.00000 552.00877 2.30% - 0s 0 0 552.01168 0 75 565.00000 552.01168 2.30% - 0s 0 0 552.01911 0 72 565.00000 552.01911 2.30% - 1s 0 0 552.01922 0 76 565.00000 552.01922 2.30% - 1s 0 0 552.03185 0 75 565.00000 552.03185 2.30% - 1s 0 0 552.03673 0 76 565.00000 552.03673 2.29% - 1s 0 0 552.05552 0 74 565.00000 552.05552 2.29% - 1s 0 0 552.06110 0 74 565.00000 552.06110 2.29% - 1s 0 0 552.06110 0 77 565.00000 552.06110 2.29% - 1s 0 0 552.06887 0 76 565.00000 552.06887 2.29% - 1s 0 0 552.06887 0 79 565.00000 552.06887 2.29% - 1s 0 0 552.07037 0 75 565.00000 552.07037 2.29% - 1s 0 0 552.07288 0 80 565.00000 552.07288 2.29% - 1s 0 2 552.08620 0 80 565.00000 552.08620 2.29% - 1s * 651 363 38 564.0000000 556.00000 1.42% 10.7 3s 1448 421 561.16797 30 56 564.00000 556.84091 1.27% 10.8 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 6059 nodes (60371 simplex iterations) in 9.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 19), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (19, 26), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45), (45, 46)] Optimize a model with 441 rows, 1275 columns and 82164 nonzeros Presolve time: 0.05s Presolved: 441 rows, 1275 columns, 82164 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 139 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.66767 0 63 566.00000 551.66767 2.53% - 0s 0 0 551.67122 0 66 566.00000 551.67122 2.53% - 0s 0 0 551.68731 0 68 566.00000 551.68731 2.53% - 0s 0 0 551.69668 0 70 566.00000 551.69668 2.53% - 0s 0 0 551.71525 0 71 566.00000 551.71525 2.52% - 0s 0 0 551.77633 0 65 566.00000 551.77633 2.51% - 0s 0 0 551.85982 0 66 566.00000 551.85982 2.50% - 0s 0 0 551.85982 0 70 566.00000 551.85982 2.50% - 0s 0 0 551.87622 0 70 566.00000 551.87622 2.50% - 0s 0 0 551.87942 0 74 566.00000 551.87942 2.49% - 0s 0 0 551.90617 0 74 566.00000 551.90617 2.49% - 0s 0 0 551.95064 0 71 566.00000 551.95064 2.48% - 0s 0 0 551.95064 0 74 566.00000 551.95064 2.48% - 0s 0 0 551.97946 0 72 566.00000 551.97946 2.48% - 0s 0 0 551.97946 0 75 566.00000 551.97946 2.48% - 0s 0 0 551.98388 0 71 566.00000 551.98388 2.48% - 0s 0 0 551.98388 0 74 566.00000 551.98388 2.48% - 0s 0 0 551.98873 0 72 566.00000 551.98873 2.48% - 0s 0 0 551.98873 0 75 566.00000 551.98873 2.48% - 0s 0 0 551.99239 0 75 566.00000 551.99239 2.47% - 0s 0 0 551.99297 0 79 566.00000 551.99297 2.47% - 1s 0 0 552.00875 0 70 566.00000 552.00875 2.47% - 1s 0 0 552.01168 0 75 566.00000 552.01168 2.47% - 1s 0 0 552.01911 0 72 566.00000 552.01911 2.47% - 1s 0 0 552.01911 0 75 566.00000 552.01911 2.47% - 1s 0 0 552.03192 0 72 566.00000 552.03192 2.47% - 1s 0 0 552.03192 0 75 566.00000 552.03192 2.47% - 1s 0 0 552.03922 0 75 566.00000 552.03922 2.47% - 1s 0 0 552.04170 0 75 566.00000 552.04170 2.47% - 1s 0 0 552.06973 0 75 566.00000 552.06973 2.46% - 1s 0 2 552.11749 0 75 566.00000 552.11749 2.45% - 1s * 40 26 34 565.0000000 553.79977 1.98% 14.0 2s * 220 138 30 564.0000000 554.54563 1.68% 11.8 2s 1717 385 562.13043 22 52 564.00000 558.00000 1.06% 11.1 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 5242 nodes (48826 simplex iterations) in 8.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 48), (9, 27), (9, 49), (11, 40), (11, 50), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37)] adding cut for [(38, 45), (41, 42), (43, 45), (14, 42), (14, 26), (19, 26), (20, 41), (20, 43)] Optimize a model with 443 rows, 1275 columns and 82431 nonzeros Presolve time: 0.05s Presolved: 443 rows, 1275 columns, 82431 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 139 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.44048 3.94% - 0s 0 0 551.56675 0 62 573.00000 551.56675 3.74% - 0s 0 0 551.56675 0 56 573.00000 551.56675 3.74% - 0s 0 0 551.72300 0 63 573.00000 551.72300 3.71% - 0s 0 0 551.72300 0 67 573.00000 551.72300 3.71% - 0s 0 0 551.76871 0 67 573.00000 551.76871 3.71% - 0s 0 0 551.76871 0 71 573.00000 551.76871 3.71% - 0s 0 0 551.80376 0 68 573.00000 551.80376 3.70% - 0s 0 0 551.80376 0 72 573.00000 551.80376 3.70% - 0s 0 0 551.83984 0 64 573.00000 551.83984 3.69% - 0s 0 0 551.83984 0 68 573.00000 551.83984 3.69% - 0s 0 0 551.84479 0 66 573.00000 551.84479 3.69% - 0s 0 0 551.84479 0 70 573.00000 551.84479 3.69% - 0s 0 0 551.87313 0 67 573.00000 551.87313 3.69% - 0s 0 0 551.88443 0 71 573.00000 551.88443 3.69% - 0s 0 0 551.90886 0 71 573.00000 551.90886 3.68% - 0s 0 0 551.90886 0 74 573.00000 551.90886 3.68% - 1s 0 0 551.92711 0 69 573.00000 551.92711 3.68% - 1s 0 0 551.93169 0 72 573.00000 551.93169 3.68% - 1s 0 0 552.11099 0 72 573.00000 552.11099 3.65% - 1s 0 0 552.11421 0 75 573.00000 552.11421 3.64% - 1s 0 0 552.11965 0 79 573.00000 552.11965 3.64% - 1s 0 0 552.12315 0 77 573.00000 552.12315 3.64% - 1s 0 0 552.12891 0 79 573.00000 552.12891 3.64% - 1s 0 0 552.14289 0 78 573.00000 552.14289 3.64% - 1s 0 0 552.14328 0 78 573.00000 552.14328 3.64% - 1s H 0 0 572.0000000 552.14328 3.47% - 1s 0 0 552.15650 0 77 572.00000 552.15650 3.47% - 1s 0 0 552.16811 0 83 572.00000 552.16811 3.47% - 1s 0 0 552.16856 0 79 572.00000 552.16856 3.47% - 1s H 0 0 571.0000000 552.16856 3.30% - 2s 0 2 552.17505 0 79 571.00000 552.17505 3.30% - 2s * 77 50 31 565.0000000 553.79781 1.98% 12.9 2s * 763 327 39 564.0000000 556.10000 1.40% 12.5 4s 1036 352 562.25000 29 18 564.00000 556.12384 1.40% 12.2 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Mod-K: 1 Explored 4372 nodes (48166 simplex iterations) in 8.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 17), (3, 23), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 39), (10, 51), (15, 25), (15, 26), (17, 39), (19, 26), (21, 30), (21, 36), (22, 30), (22, 35), (25, 44), (29, 32), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (6, 50), (41, 42), (43, 45), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (31, 50)] Optimize a model with 445 rows, 1275 columns and 82836 nonzeros Presolve time: 0.05s Presolved: 445 rows, 1275 columns, 82836 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 139 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.66767 0 63 566.00000 551.66767 2.53% - 0s 0 0 551.67122 0 66 566.00000 551.67122 2.53% - 0s 0 0 551.68731 0 68 566.00000 551.68731 2.53% - 0s 0 0 551.69668 0 70 566.00000 551.69668 2.53% - 0s 0 0 551.71525 0 71 566.00000 551.71525 2.52% - 0s 0 0 551.77633 0 65 566.00000 551.77633 2.51% - 0s 0 0 551.85982 0 66 566.00000 551.85982 2.50% - 0s 0 0 551.85982 0 70 566.00000 551.85982 2.50% - 0s 0 0 551.87622 0 70 566.00000 551.87622 2.50% - 0s 0 0 551.87942 0 74 566.00000 551.87942 2.49% - 0s 0 0 551.90617 0 74 566.00000 551.90617 2.49% - 0s 0 0 551.95064 0 71 566.00000 551.95064 2.48% - 0s 0 0 551.95064 0 74 566.00000 551.95064 2.48% - 0s 0 0 551.97946 0 72 566.00000 551.97946 2.48% - 0s 0 0 551.97946 0 75 566.00000 551.97946 2.48% - 0s 0 0 551.98437 0 72 566.00000 551.98437 2.48% - 0s 0 0 551.98437 0 75 566.00000 551.98437 2.48% - 0s 0 0 551.99053 0 74 566.00000 551.99053 2.48% - 0s 0 0 551.99214 0 75 566.00000 551.99214 2.47% - 0s 0 0 551.99315 0 73 566.00000 551.99315 2.47% - 1s 0 0 551.99376 0 75 566.00000 551.99376 2.47% - 1s 0 0 552.02464 0 75 566.00000 552.02464 2.47% - 1s 0 0 552.04426 0 78 566.00000 552.04426 2.47% - 1s 0 0 552.04754 0 77 566.00000 552.04754 2.47% - 1s 0 2 552.05175 0 77 566.00000 552.05175 2.46% - 1s * 80 52 33 565.0000000 553.70057 2.00% 11.7 1s * 573 284 17 564.0000000 555.56338 1.50% 11.1 2s 1661 392 560.17647 16 46 564.00000 557.15789 1.21% 11.4 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Mod-K: 1 Explored 5176 nodes (52696 simplex iterations) in 8.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 38), (10, 50), (10, 31), (11, 40), (11, 50), (12, 39), (16, 38), (16, 46), (17, 39), (17, 51), (22, 35), (22, 51), (31, 35)] adding cut for [(2, 23), (3, 30), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 447 rows, 1275 columns and 83022 nonzeros Presolve time: 0.05s Presolved: 447 rows, 1275 columns, 83022 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.56675 0 62 568.00000 551.56675 2.89% - 0s 0 0 551.56675 0 56 568.00000 551.56675 2.89% - 0s 0 0 551.72301 0 64 568.00000 551.72301 2.87% - 0s 0 0 551.72301 0 68 568.00000 551.72301 2.87% - 0s 0 0 551.77330 0 64 568.00000 551.77330 2.86% - 0s 0 0 551.77330 0 68 568.00000 551.77330 2.86% - 0s 0 0 551.78309 0 66 568.00000 551.78309 2.86% - 0s 0 0 551.78309 0 70 568.00000 551.78309 2.86% - 0s 0 0 551.84484 0 69 568.00000 551.84484 2.84% - 0s 0 0 551.84484 0 73 568.00000 551.84484 2.84% - 0s 0 0 551.85366 0 71 568.00000 551.85366 2.84% - 0s 0 0 551.85366 0 75 568.00000 551.85366 2.84% - 0s 0 0 551.86078 0 66 568.00000 551.86078 2.84% - 0s 0 0 551.86078 0 70 568.00000 551.86078 2.84% - 0s 0 0 551.87094 0 73 568.00000 551.87094 2.84% - 0s 0 0 551.87094 0 74 568.00000 551.87094 2.84% - 0s 0 0 551.87671 0 74 568.00000 551.87671 2.84% - 1s 0 0 551.87671 0 75 568.00000 551.87671 2.84% - 1s 0 0 551.89453 0 72 568.00000 551.89453 2.84% - 1s 0 0 551.89915 0 73 568.00000 551.89915 2.83% - 1s 0 0 552.05196 0 71 568.00000 552.05196 2.81% - 1s 0 0 552.05969 0 72 568.00000 552.05969 2.81% - 1s 0 0 552.14465 0 72 568.00000 552.14465 2.79% - 1s 0 0 552.14465 0 73 568.00000 552.14465 2.79% - 1s 0 0 552.17230 0 75 568.00000 552.17230 2.79% - 1s H 0 0 565.0000000 552.17230 2.27% - 1s 0 0 552.17879 0 79 565.00000 552.17879 2.27% - 1s 0 2 552.75828 0 79 565.00000 552.75828 2.17% - 1s 863 384 561.86957 19 54 565.00000 556.97468 1.42% 11.3 5s * 886 364 23 564.0000000 557.00000 1.24% 11.2 5s Cutting planes: Gomory: 8 MIR: 13 Zero half: 21 Explored 5027 nodes (50956 simplex iterations) in 9.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (38, 45), (35, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (17, 22), (22, 30), (5, 19), (5, 38), (31, 35)] adding cut for [(8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (18, 43), (20, 41), (20, 43), (25, 44)] Optimize a model with 449 rows, 1275 columns and 83224 nonzeros Presolve time: 0.05s Presolved: 449 rows, 1275 columns, 83224 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.63788 0 65 566.00000 551.63788 2.54% - 0s 0 0 551.63788 0 69 566.00000 551.63788 2.54% - 0s 0 0 551.70774 0 64 566.00000 551.70774 2.53% - 0s 0 0 551.70868 0 71 566.00000 551.70868 2.52% - 0s 0 0 551.73397 0 63 566.00000 551.73397 2.52% - 0s 0 0 551.74986 0 70 566.00000 551.74986 2.52% - 0s 0 0 551.81615 0 65 566.00000 551.81615 2.51% - 0s 0 0 551.83388 0 70 566.00000 551.83388 2.50% - 0s 0 0 551.87468 0 72 566.00000 551.87468 2.50% - 0s 0 0 551.95227 0 70 566.00000 551.95227 2.48% - 0s 0 0 551.98492 0 73 566.00000 551.98492 2.48% - 0s 0 2 552.03349 0 73 566.00000 552.03349 2.47% - 1s H 27 26 565.0000000 553.50633 2.03% 14.6 1s * 216 122 18 564.0000000 554.35226 1.71% 12.2 1s 2328 272 563.00000 26 46 564.00000 559.77500 0.75% 10.8 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 3372 nodes (34002 simplex iterations) in 5.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 14), (5, 19), (38, 45), (41, 42), (43, 45), (14, 42), (20, 41), (20, 43), (6, 38)] Optimize a model with 451 rows, 1275 columns and 83422 nonzeros Presolve time: 0.05s Presolved: 451 rows, 1275 columns, 83422 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 56 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 62 565.00000 551.56675 2.38% - 0s 0 0 551.56675 0 66 565.00000 551.56675 2.38% - 0s 0 0 551.63788 0 65 565.00000 551.63788 2.36% - 0s 0 0 551.63788 0 69 565.00000 551.63788 2.36% - 0s 0 0 551.71053 0 65 565.00000 551.71053 2.35% - 0s 0 0 551.71053 0 69 565.00000 551.71053 2.35% - 0s 0 0 551.74966 0 64 565.00000 551.74966 2.35% - 0s 0 0 551.74966 0 68 565.00000 551.74966 2.35% - 0s 0 0 551.75806 0 66 565.00000 551.75806 2.34% - 0s 0 0 551.75958 0 71 565.00000 551.75958 2.34% - 0s 0 0 551.76736 0 73 565.00000 551.76736 2.34% - 0s 0 0 551.77457 0 72 565.00000 551.77457 2.34% - 0s 0 0 551.77993 0 71 565.00000 551.77993 2.34% - 0s 0 0 551.80677 0 70 565.00000 551.80677 2.34% - 0s 0 0 551.81828 0 76 565.00000 551.81828 2.33% - 0s 0 0 551.82365 0 76 565.00000 551.82365 2.33% - 0s 0 0 551.83573 0 81 565.00000 551.83573 2.33% - 0s 0 0 551.85615 0 73 565.00000 551.85615 2.33% - 0s 0 0 551.94029 0 75 565.00000 551.94029 2.31% - 0s 0 0 551.94029 0 78 565.00000 551.94029 2.31% - 0s 0 0 551.95308 0 76 565.00000 551.95308 2.31% - 0s 0 0 551.96504 0 77 565.00000 551.96504 2.31% - 0s 0 0 551.97428 0 80 565.00000 551.97428 2.31% - 0s 0 0 551.98820 0 77 565.00000 551.98820 2.30% - 0s 0 0 551.99801 0 79 565.00000 551.99801 2.30% - 1s 0 0 551.99801 0 79 565.00000 551.99801 2.30% - 1s 0 2 552.00408 0 79 565.00000 552.00408 2.30% - 1s H 225 100 564.0000000 554.44684 1.69% 13.0 2s 1822 227 562.49074 25 41 564.00000 559.69231 0.76% 11.3 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 11 Explored 2885 nodes (29682 simplex iterations) in 5.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 43), (11, 40), (11, 50), (18, 38), (18, 45), (16, 38), (16, 46), (8, 44), (8, 24), (20, 41), (20, 42), (14, 42), (14, 26), (24, 49), (25, 44), (25, 26)] adding cut for [(2, 23), (3, 33), (3, 21), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (36, 37), (27, 32), (29, 32)] Optimize a model with 453 rows, 1275 columns and 83698 nonzeros Presolve time: 0.05s Presolved: 453 rows, 1275 columns, 83698 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.63788 0 65 566.00000 551.63788 2.54% - 0s 0 0 551.63788 0 69 566.00000 551.63788 2.54% - 0s 0 0 551.70774 0 64 566.00000 551.70774 2.53% - 0s 0 0 551.70868 0 71 566.00000 551.70868 2.52% - 0s 0 0 551.73397 0 63 566.00000 551.73397 2.52% - 0s 0 0 551.74986 0 70 566.00000 551.74986 2.52% - 0s 0 0 551.81615 0 65 566.00000 551.81615 2.51% - 0s 0 0 551.83388 0 70 566.00000 551.83388 2.50% - 0s 0 0 551.87468 0 72 566.00000 551.87468 2.50% - 0s 0 0 551.95227 0 70 566.00000 551.95227 2.48% - 0s 0 0 551.98492 0 73 566.00000 551.98492 2.48% - 0s 0 2 552.03349 0 73 566.00000 552.03349 2.47% - 1s H 54 41 565.0000000 553.68358 2.00% 14.3 1s * 878 316 39 564.0000000 556.46446 1.34% 12.1 3s 2255 438 562.42308 37 47 564.00000 559.00000 0.89% 11.0 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 4412 nodes (44730 simplex iterations) in 7.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 39), (39, 50), (10, 50), (10, 31), (11, 40), (11, 31), (16, 46), (16, 18)] adding cut for [(3, 33), (3, 4), (4, 37), (12, 17), (17, 51), (35, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37)] Optimize a model with 455 rows, 1275 columns and 83842 nonzeros Presolve time: 0.05s Presolved: 455 rows, 1275 columns, 83842 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.44048 3.09% - 0s 0 0 551.56675 0 62 568.00000 551.56675 2.89% - 0s 0 0 551.56675 0 56 568.00000 551.56675 2.89% - 0s 0 0 551.72301 0 64 568.00000 551.72301 2.87% - 0s 0 0 551.72301 0 68 568.00000 551.72301 2.87% - 0s 0 0 551.77330 0 64 568.00000 551.77330 2.86% - 0s 0 0 551.77330 0 68 568.00000 551.77330 2.86% - 0s 0 0 551.78309 0 66 568.00000 551.78309 2.86% - 0s 0 0 551.78309 0 70 568.00000 551.78309 2.86% - 0s 0 0 551.84484 0 69 568.00000 551.84484 2.84% - 0s 0 0 551.84484 0 73 568.00000 551.84484 2.84% - 0s 0 0 551.85366 0 71 568.00000 551.85366 2.84% - 0s 0 0 551.85366 0 75 568.00000 551.85366 2.84% - 0s 0 0 551.86078 0 66 568.00000 551.86078 2.84% - 0s 0 0 551.86078 0 70 568.00000 551.86078 2.84% - 0s 0 0 551.87368 0 73 568.00000 551.87368 2.84% - 0s 0 0 551.87368 0 74 568.00000 551.87368 2.84% - 1s 0 0 551.87733 0 76 568.00000 551.87733 2.84% - 1s 0 0 551.87733 0 77 568.00000 551.87733 2.84% - 1s 0 0 551.88341 0 71 568.00000 551.88341 2.84% - 1s 0 0 551.88341 0 75 568.00000 551.88341 2.84% - 1s 0 0 551.88875 0 73 568.00000 551.88875 2.84% - 1s 0 0 551.88875 0 74 568.00000 551.88875 2.84% - 1s 0 0 551.90485 0 73 568.00000 551.90485 2.83% - 1s 0 0 551.90668 0 74 568.00000 551.90668 2.83% - 1s 0 0 551.91640 0 80 568.00000 551.91640 2.83% - 1s 0 0 551.93788 0 75 568.00000 551.93788 2.83% - 1s 0 0 552.01603 0 75 568.00000 552.01603 2.81% - 1s 0 0 552.08321 0 74 568.00000 552.08321 2.80% - 1s 0 0 552.09911 0 79 568.00000 552.09911 2.80% - 1s 0 0 552.12213 0 78 568.00000 552.12213 2.80% - 1s 0 0 552.13065 0 81 568.00000 552.13065 2.79% - 1s 0 0 552.13640 0 79 568.00000 552.13640 2.79% - 1s 0 0 552.18876 0 85 568.00000 552.18876 2.78% - 1s 0 0 552.19944 0 85 568.00000 552.19944 2.78% - 1s H 0 0 567.0000000 552.19944 2.61% - 2s 0 2 552.19966 0 85 567.00000 552.19966 2.61% - 2s * 109 76 22 565.0000000 554.07574 1.93% 13.0 2s * 110 69 22 564.0000000 554.07574 1.76% 12.9 2s 1042 324 562.58721 26 63 564.00000 556.28669 1.37% 12.5 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Explored 4606 nodes (48253 simplex iterations) in 8.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(8, 24), (8, 27), (9, 27), (9, 49), (11, 31), (11, 40), (12, 39), (14, 26), (14, 42), (16, 38), (16, 46), (17, 39), (17, 51), (20, 41), (20, 42), (24, 44), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (35, 51), (38, 45), (41, 43), (43, 45)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 50), (10, 50), (10, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 457 rows, 1275 columns and 84258 nonzeros Presolve time: 0.05s Presolved: 457 rows, 1275 columns, 84258 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.63788 0 65 566.00000 551.63788 2.54% - 0s 0 0 551.63788 0 69 566.00000 551.63788 2.54% - 0s 0 0 551.70774 0 64 566.00000 551.70774 2.53% - 0s 0 0 551.70868 0 71 566.00000 551.70868 2.52% - 0s 0 0 551.73397 0 63 566.00000 551.73397 2.52% - 0s 0 0 551.74986 0 70 566.00000 551.74986 2.52% - 0s 0 0 551.81615 0 65 566.00000 551.81615 2.51% - 0s 0 0 551.83388 0 70 566.00000 551.83388 2.50% - 0s 0 0 551.87468 0 72 566.00000 551.87468 2.50% - 0s 0 0 551.95227 0 70 566.00000 551.95227 2.48% - 0s 0 0 551.98492 0 73 566.00000 551.98492 2.48% - 0s 0 2 552.03349 0 73 566.00000 552.03349 2.47% - 1s H 64 51 565.0000000 553.68358 2.00% 14.4 1s * 254 123 13 564.0000000 554.85106 1.62% 12.8 1s 2176 453 562.49495 29 53 564.00000 558.30000 1.01% 11.0 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 4717 nodes (48191 simplex iterations) in 7.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 4), (4, 37), (38, 45), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (31, 35)] Optimize a model with 458 rows, 1275 columns and 84411 nonzeros Presolve time: 0.05s Presolved: 458 rows, 1275 columns, 84411 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 580.0000000 550.44048 5.10% - 0s 0 0 551.56675 0 62 580.00000 551.56675 4.90% - 0s 0 0 551.56675 0 56 580.00000 551.56675 4.90% - 0s 0 0 551.56675 0 62 580.00000 551.56675 4.90% - 0s 0 0 551.56675 0 66 580.00000 551.56675 4.90% - 0s 0 0 551.63788 0 65 580.00000 551.63788 4.89% - 0s 0 0 551.63788 0 69 580.00000 551.63788 4.89% - 0s 0 0 551.71053 0 65 580.00000 551.71053 4.88% - 0s 0 0 551.71053 0 69 580.00000 551.71053 4.88% - 0s 0 0 551.73655 0 66 580.00000 551.73655 4.87% - 0s 0 0 551.73655 0 70 580.00000 551.73655 4.87% - 0s 0 0 551.77263 0 67 580.00000 551.77263 4.87% - 0s 0 0 551.77263 0 71 580.00000 551.77263 4.87% - 0s 0 0 551.77508 0 70 580.00000 551.77508 4.87% - 1s 0 0 551.77508 0 74 580.00000 551.77508 4.87% - 1s 0 0 551.78110 0 75 580.00000 551.78110 4.87% - 1s 0 0 551.78110 0 76 580.00000 551.78110 4.87% - 1s 0 0 551.78462 0 70 580.00000 551.78462 4.86% - 1s 0 0 551.78581 0 76 580.00000 551.78581 4.86% - 1s 0 0 551.85055 0 71 580.00000 551.85055 4.85% - 1s 0 0 551.85107 0 78 580.00000 551.85107 4.85% - 1s 0 0 551.86243 0 76 580.00000 551.86243 4.85% - 1s 0 0 551.88170 0 75 580.00000 551.88170 4.85% - 1s 0 0 551.89914 0 78 580.00000 551.89914 4.84% - 1s 0 0 551.90132 0 79 580.00000 551.90132 4.84% - 1s H 0 0 572.0000000 551.90132 3.51% - 2s 0 2 551.94457 0 79 572.00000 551.94457 3.51% - 2s * 54 35 47 566.0000000 553.34624 2.24% 9.9 2s * 77 47 17 565.0000000 553.91052 1.96% 11.4 2s * 132 71 11 564.0000000 554.35361 1.71% 12.4 2s 959 251 cutoff 36 564.00000 556.98240 1.24% 12.4 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 2991 nodes (31587 simplex iterations) in 6.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (38, 45), (35, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (17, 22), (18, 38), (22, 30), (5, 19), (5, 18), (31, 35)] adding cut for [(8, 44), (8, 24), (41, 43), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 42), (24, 49), (25, 44)] Optimize a model with 460 rows, 1275 columns and 84630 nonzeros Presolve time: 0.05s Presolved: 460 rows, 1275 columns, 84630 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 56 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 62 566.00000 551.56675 2.55% - 0s 0 0 551.56675 0 66 566.00000 551.56675 2.55% - 0s 0 0 551.61940 0 65 566.00000 551.61940 2.54% - 0s 0 0 551.61940 0 69 566.00000 551.61940 2.54% - 0s 0 0 551.71344 0 66 566.00000 551.71344 2.52% - 0s 0 0 551.71344 0 70 566.00000 551.71344 2.52% - 0s 0 0 551.76351 0 65 566.00000 551.76351 2.52% - 0s 0 0 551.76656 0 69 566.00000 551.76656 2.51% - 0s 0 0 551.78536 0 68 566.00000 551.78536 2.51% - 0s 0 0 551.78536 0 71 566.00000 551.78536 2.51% - 0s 0 0 551.84594 0 67 566.00000 551.84594 2.50% - 0s 0 0 551.84594 0 70 566.00000 551.84594 2.50% - 0s 0 0 551.87188 0 65 566.00000 551.87188 2.50% - 0s 0 0 551.87188 0 69 566.00000 551.87188 2.50% - 0s 0 0 551.89932 0 76 566.00000 551.89932 2.49% - 0s 0 0 551.91326 0 73 566.00000 551.91326 2.49% - 0s 0 0 551.95172 0 75 566.00000 551.95172 2.48% - 0s 0 0 551.98836 0 76 566.00000 551.98836 2.48% - 0s 0 0 552.00702 0 77 566.00000 552.00702 2.47% - 0s 0 0 552.04265 0 78 566.00000 552.04265 2.47% - 1s 0 0 552.13854 0 74 566.00000 552.13854 2.45% - 1s 0 0 552.15298 0 78 566.00000 552.15298 2.45% - 1s 0 0 552.16131 0 79 566.00000 552.16131 2.44% - 1s 0 0 552.16674 0 80 566.00000 552.16674 2.44% - 1s 0 0 552.17519 0 81 566.00000 552.17519 2.44% - 1s 0 0 552.17996 0 79 566.00000 552.17996 2.44% - 1s 0 0 552.18023 0 79 566.00000 552.18023 2.44% - 1s 0 0 552.18624 0 80 566.00000 552.18624 2.44% - 1s 0 0 552.18660 0 81 566.00000 552.18660 2.44% - 1s 0 0 552.18739 0 81 566.00000 552.18739 2.44% - 1s 0 2 552.21674 0 81 566.00000 552.21674 2.44% - 1s * 110 75 29 565.0000000 553.78889 1.98% 11.9 2s * 495 237 21 564.0000000 556.16883 1.39% 12.4 2s 1433 224 cutoff 23 564.00000 557.99245 1.07% 12.0 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 15 Mod-K: 1 Explored 3157 nodes (33827 simplex iterations) in 6.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (38, 45), (10, 35), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (6, 50), (31, 35)] adding cut for [(7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] Optimize a model with 462 rows, 1275 columns and 84801 nonzeros Presolve time: 0.05s Presolved: 462 rows, 1275 columns, 84801 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.60436 0 61 566.00000 551.60436 2.54% - 0s 0 0 551.60436 0 56 566.00000 551.60436 2.54% - 0s 0 0 551.60436 0 61 566.00000 551.60436 2.54% - 0s 0 0 551.73202 0 67 566.00000 551.73202 2.52% - 0s 0 0 551.76689 0 67 566.00000 551.76689 2.51% - 0s 0 0 552.00524 0 64 566.00000 552.00524 2.47% - 0s 0 0 552.00685 0 68 566.00000 552.00685 2.47% - 0s 0 0 552.04233 0 73 566.00000 552.04233 2.47% - 0s 0 0 552.14489 0 66 566.00000 552.14489 2.45% - 0s 0 0 552.14489 0 70 566.00000 552.14489 2.45% - 0s 0 0 552.18797 0 67 566.00000 552.18797 2.44% - 0s 0 0 552.18797 0 71 566.00000 552.18797 2.44% - 0s 0 0 552.26218 0 69 566.00000 552.26218 2.43% - 0s 0 0 552.26218 0 72 566.00000 552.26218 2.43% - 0s 0 0 552.29931 0 70 566.00000 552.29931 2.42% - 0s 0 0 552.31158 0 78 566.00000 552.31158 2.42% - 0s 0 0 552.34061 0 73 566.00000 552.34061 2.41% - 0s 0 0 552.34061 0 77 566.00000 552.34061 2.41% - 0s 0 0 552.34074 0 75 566.00000 552.34074 2.41% - 0s 0 0 552.34074 0 79 566.00000 552.34074 2.41% - 0s 0 0 552.34214 0 75 566.00000 552.34214 2.41% - 0s 0 2 552.34249 0 75 566.00000 552.34249 2.41% - 1s * 321 173 27 565.0000000 555.25000 1.73% 12.3 2s H 773 326 564.0000000 556.33333 1.36% 12.0 3s 1838 422 561.03571 27 44 564.00000 557.80192 1.10% 10.9 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 5463 nodes (55295 simplex iterations) in 9.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 463 rows, 1275 columns and 84991 nonzeros Presolve time: 0.05s Presolved: 463 rows, 1275 columns, 84991 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 128 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.44048 4.10% - 0s 0 0 551.60436 0 61 574.00000 551.60436 3.90% - 0s 0 0 551.60436 0 56 574.00000 551.60436 3.90% - 0s 0 0 551.73202 0 63 574.00000 551.73202 3.88% - 0s 0 0 551.73202 0 67 574.00000 551.73202 3.88% - 0s 0 0 551.77840 0 61 574.00000 551.77840 3.87% - 0s 0 0 551.78004 0 65 574.00000 551.78004 3.87% - 0s 0 0 551.88659 0 72 574.00000 551.88659 3.85% - 0s 0 0 551.90493 0 70 574.00000 551.90493 3.85% - 0s 0 0 551.91769 0 72 574.00000 551.91769 3.85% - 0s 0 2 551.94102 0 72 574.00000 551.94102 3.84% - 1s * 35 31 30 566.0000000 553.51282 2.21% 12.0 1s * 150 99 19 564.0000000 554.63830 1.66% 12.8 1s 2158 357 cutoff 26 564.00000 558.90625 0.90% 10.9 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 7 Explored 3741 nodes (38970 simplex iterations) in 6.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] Optimize a model with 464 rows, 1275 columns and 85162 nonzeros Presolve time: 0.05s Presolved: 464 rows, 1275 columns, 85162 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 128 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.44048 3.77% - 0s 0 0 551.53984 0 61 572.00000 551.53984 3.58% - 0s 0 0 551.53984 0 56 572.00000 551.53984 3.58% - 0s 0 0 551.73202 0 63 572.00000 551.73202 3.54% - 0s 0 0 551.73202 0 67 572.00000 551.73202 3.54% - 0s 0 0 551.76689 0 63 572.00000 551.76689 3.54% - 0s 0 0 551.76689 0 67 572.00000 551.76689 3.54% - 0s 0 0 552.00525 0 64 572.00000 552.00525 3.50% - 0s 0 0 552.00525 0 68 572.00000 552.00525 3.50% - 0s 0 0 552.02809 0 71 572.00000 552.02809 3.49% - 0s 0 0 552.02809 0 72 572.00000 552.02809 3.49% - 0s 0 0 552.04457 0 68 572.00000 552.04457 3.49% - 0s 0 0 552.04457 0 72 572.00000 552.04457 3.49% - 0s 0 0 552.08379 0 70 572.00000 552.08379 3.48% - 0s 0 0 552.08379 0 71 572.00000 552.08379 3.48% - 0s 0 0 552.10075 0 76 572.00000 552.10075 3.48% - 1s 0 0 552.10075 0 77 572.00000 552.10075 3.48% - 1s 0 0 552.26350 0 72 572.00000 552.26350 3.45% - 1s 0 0 552.26396 0 73 572.00000 552.26396 3.45% - 1s 0 0 552.31936 0 69 572.00000 552.31936 3.44% - 1s 0 0 552.31936 0 73 572.00000 552.31936 3.44% - 1s 0 0 552.32374 0 68 572.00000 552.32374 3.44% - 1s 0 0 552.32374 0 72 572.00000 552.32374 3.44% - 1s 0 0 552.32709 0 74 572.00000 552.32709 3.44% - 1s 0 0 552.32709 0 78 572.00000 552.32709 3.44% - 1s H 0 0 565.0000000 552.32709 2.24% - 2s 0 2 552.34410 0 78 565.00000 552.34410 2.24% - 2s * 213 102 14 564.0000000 554.87500 1.62% 10.9 2s 1430 261 561.20000 24 46 564.00000 557.50000 1.15% 11.3 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 3962 nodes (41098 simplex iterations) in 7.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (7, 24), (8, 24), (8, 44), (9, 27), (9, 49), (10, 31), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (23, 29), (25, 26), (25, 44), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 465 rows, 1275 columns and 85690 nonzeros Presolve time: 0.05s Presolved: 465 rows, 1275 columns, 85690 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 128 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start 0 0 551.60436 0 61 1672.00000 551.60436 67.0% - 0s 0 0 551.73202 0 67 1672.00000 551.73202 67.0% - 0s 0 0 551.77840 0 65 1672.00000 551.77840 67.0% - 0s 0 0 551.95690 0 71 1672.00000 551.95690 67.0% - 0s 0 0 551.98361 0 69 1672.00000 551.98361 67.0% - 0s 0 0 552.01904 0 72 1672.00000 552.01904 67.0% - 0s 0 0 552.03834 0 73 1672.00000 552.03834 67.0% - 0s 0 0 552.07555 0 74 1672.00000 552.07555 67.0% - 0s 0 0 552.08428 0 75 1672.00000 552.08428 67.0% - 0s 0 0 552.11434 0 75 1672.00000 552.11434 67.0% - 0s 0 0 552.11526 0 78 1672.00000 552.11526 67.0% - 0s 0 0 552.13961 0 78 1672.00000 552.13961 67.0% - 0s H 0 0 698.0000000 552.13961 20.9% - 0s H 0 0 587.0000000 552.13961 5.94% - 0s H 0 0 574.0000000 552.13961 3.81% - 0s 0 0 552.13961 0 79 574.00000 552.13961 3.81% - 0s 0 0 552.13961 0 56 574.00000 552.13961 3.81% - 1s 0 0 552.13961 0 66 574.00000 552.13961 3.81% - 1s 0 0 552.13961 0 79 574.00000 552.13961 3.81% - 1s 0 0 552.14627 0 77 574.00000 552.14627 3.81% - 1s H 0 0 570.0000000 552.14627 3.13% - 1s H 0 0 568.0000000 552.14627 2.79% - 1s 0 2 552.15096 0 77 568.00000 552.15096 2.79% - 1s H 49 29 566.0000000 553.92167 2.13% 13.9 2s * 160 102 16 565.0000000 554.79402 1.81% 13.5 2s * 225 111 13 564.0000000 555.16667 1.57% 13.5 2s 1388 240 563.00000 27 40 564.00000 558.00000 1.06% 12.1 5s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Mod-K: 1 Explored 3177 nodes (34466 simplex iterations) in 6.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 38), (38, 45), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (22, 35), (22, 51), (31, 35)] adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (17, 30), (21, 36), (21, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 467 rows, 1275 columns and 85901 nonzeros Presolve time: 0.05s Presolved: 467 rows, 1275 columns, 85901 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.53984 0 61 566.00000 551.53984 2.55% - 0s 0 0 551.53984 0 56 566.00000 551.53984 2.55% - 0s 0 0 551.56308 0 61 566.00000 551.56308 2.55% - 0s 0 0 551.71573 0 67 566.00000 551.71573 2.52% - 0s 0 0 551.96510 0 68 566.00000 551.96510 2.48% - 0s 0 0 551.97433 0 71 566.00000 551.97433 2.48% - 0s 0 0 552.04842 0 71 566.00000 552.04842 2.46% - 0s 0 0 552.08100 0 72 566.00000 552.08100 2.46% - 0s 0 0 552.10450 0 74 566.00000 552.10450 2.46% - 0s 0 0 552.12275 0 76 566.00000 552.12275 2.45% - 0s 0 0 552.14285 0 75 566.00000 552.14285 2.45% - 0s 0 0 552.14787 0 76 566.00000 552.14787 2.45% - 0s 0 0 552.14787 0 79 566.00000 552.14787 2.45% - 0s 0 0 552.15281 0 78 566.00000 552.15281 2.45% - 0s 0 0 552.15281 0 81 566.00000 552.15281 2.45% - 0s 0 0 552.16967 0 73 566.00000 552.16967 2.44% - 0s 0 0 552.18254 0 76 566.00000 552.18254 2.44% - 0s 0 0 552.18814 0 76 566.00000 552.18814 2.44% - 0s 0 0 552.18941 0 79 566.00000 552.18941 2.44% - 0s 0 2 552.20252 0 79 566.00000 552.20252 2.44% - 1s * 478 221 19 564.0000000 556.15232 1.39% 11.6 2s 1794 330 cutoff 28 564.00000 558.33333 1.00% 11.4 5s Cutting planes: Gomory: 2 MIR: 1 Zero half: 13 Explored 4083 nodes (43364 simplex iterations) in 7.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (11, 40), (11, 50), (15, 26), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 468 rows, 1275 columns and 86226 nonzeros Presolve time: 0.05s Presolved: 468 rows, 1275 columns, 86226 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.44048 2.92% - 0s 0 0 551.53984 0 61 567.00000 551.53984 2.73% - 0s 0 0 551.53984 0 56 567.00000 551.53984 2.73% - 0s 0 0 551.71573 0 63 567.00000 551.71573 2.70% - 0s 0 0 551.71573 0 67 567.00000 551.71573 2.70% - 0s 0 0 551.96510 0 68 567.00000 551.96510 2.65% - 0s 0 0 551.97433 0 71 567.00000 551.97433 2.65% - 0s 0 0 552.03309 0 72 567.00000 552.03309 2.64% - 0s 0 0 552.06867 0 75 567.00000 552.06867 2.63% - 0s 0 0 552.10401 0 76 567.00000 552.10401 2.63% - 0s 0 0 552.11078 0 77 567.00000 552.11078 2.63% - 0s 0 0 552.11886 0 74 567.00000 552.11886 2.62% - 0s 0 0 552.15145 0 77 567.00000 552.15145 2.62% - 0s 0 0 552.15145 0 80 567.00000 552.15145 2.62% - 0s 0 0 552.19205 0 73 567.00000 552.19205 2.61% - 0s 0 0 552.19827 0 79 567.00000 552.19827 2.61% - 0s 0 2 552.20739 0 79 567.00000 552.20739 2.61% - 1s * 364 193 20 566.0000000 555.51010 1.85% 11.7 1s * 530 263 15 565.0000000 556.25806 1.55% 11.3 2s * 599 248 11 564.0000000 556.30920 1.36% 11.3 2s 1979 354 cutoff 19 564.00000 558.50000 0.98% 11.2 5s Cutting planes: Gomory: 1 MIR: 3 Zero half: 11 Explored 4175 nodes (43291 simplex iterations) in 7.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (5, 42), (5, 18), (35, 51), (41, 42), (11, 40), (11, 31), (43, 45), (16, 45), (16, 46), (17, 51), (17, 22), (18, 38), (20, 41), (20, 43), (22, 30), (31, 35)] adding cut for [(8, 44), (8, 24), (14, 19), (14, 26), (15, 25), (15, 26), (25, 44)] Optimize a model with 470 rows, 1275 columns and 86464 nonzeros Presolve time: 0.05s Presolved: 470 rows, 1275 columns, 86464 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.44048 3.43% - 0s 0 0 551.52779 0 67 570.00000 551.52779 3.24% - 0s 0 0 551.52779 0 56 570.00000 551.52779 3.24% - 0s 0 0 551.73202 0 67 570.00000 551.73202 3.20% - 0s 0 0 551.77545 0 69 570.00000 551.77545 3.20% - 0s 0 0 552.12544 0 63 570.00000 552.12544 3.14% - 0s 0 0 552.12544 0 67 570.00000 552.12544 3.14% - 0s 0 0 552.17561 0 72 570.00000 552.17561 3.13% - 0s 0 0 552.17561 0 73 570.00000 552.17561 3.13% - 0s 0 0 552.23871 0 74 570.00000 552.23871 3.12% - 0s 0 0 552.23871 0 75 570.00000 552.23871 3.12% - 0s 0 0 552.24439 0 70 570.00000 552.24439 3.12% - 0s 0 0 552.24687 0 76 570.00000 552.24687 3.11% - 0s 0 0 552.30611 0 73 570.00000 552.30611 3.10% - 0s 0 0 552.30611 0 74 570.00000 552.30611 3.10% - 0s 0 0 552.30869 0 78 570.00000 552.30869 3.10% - 1s 0 0 552.30984 0 78 570.00000 552.30984 3.10% - 1s H 0 0 569.0000000 552.30984 2.93% - 1s 0 2 552.32833 0 78 569.00000 552.32833 2.93% - 1s * 62 42 18 566.0000000 554.04841 2.11% 15.5 1s * 63 40 18 565.0000000 554.04841 1.94% 15.3 1s * 223 108 17 564.0000000 555.00000 1.60% 12.9 2s 1757 263 562.66667 25 24 564.00000 558.64706 0.95% 11.5 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 3251 nodes (34265 simplex iterations) in 6.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] Optimize a model with 471 rows, 1275 columns and 86635 nonzeros Presolve time: 0.05s Presolved: 471 rows, 1275 columns, 86635 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.44048 2.75% - 0s 0 0 551.52779 0 67 566.00000 551.52779 2.56% - 0s 0 0 551.52779 0 56 566.00000 551.52779 2.56% - 0s 0 0 551.60436 0 65 566.00000 551.60436 2.54% - 0s 0 0 551.99397 0 68 566.00000 551.99397 2.47% - 0s 0 0 551.99397 0 72 566.00000 551.99397 2.47% - 0s 0 0 552.02226 0 69 566.00000 552.02226 2.47% - 0s 0 0 552.02226 0 72 566.00000 552.02226 2.47% - 0s 0 0 552.10320 0 71 566.00000 552.10320 2.46% - 0s 0 0 552.10320 0 74 566.00000 552.10320 2.46% - 0s 0 0 552.24747 0 71 566.00000 552.24747 2.43% - 0s 0 0 552.24747 0 75 566.00000 552.24747 2.43% - 0s 0 0 552.33940 0 69 566.00000 552.33940 2.41% - 0s 0 0 552.33940 0 73 566.00000 552.33940 2.41% - 0s 0 0 552.34697 0 78 566.00000 552.34697 2.41% - 0s 0 0 552.35608 0 71 566.00000 552.35608 2.41% - 0s 0 0 552.35608 0 75 566.00000 552.35608 2.41% - 0s 0 0 552.36447 0 80 566.00000 552.36447 2.41% - 0s 0 0 552.42266 0 79 566.00000 552.42266 2.40% - 0s 0 0 552.42266 0 82 566.00000 552.42266 2.40% - 0s 0 0 552.43328 0 72 566.00000 552.43328 2.40% - 0s 0 0 552.43594 0 77 566.00000 552.43594 2.40% - 0s 0 0 552.44607 0 81 566.00000 552.44607 2.39% - 1s 0 0 552.45154 0 74 566.00000 552.45154 2.39% - 1s 0 0 552.45406 0 79 566.00000 552.45406 2.39% - 1s 0 0 552.46358 0 76 566.00000 552.46358 2.39% - 1s 0 0 552.46358 0 80 566.00000 552.46358 2.39% - 1s 0 0 552.46389 0 83 566.00000 552.46389 2.39% - 1s 0 0 552.46389 0 84 566.00000 552.46389 2.39% - 1s H 0 0 564.0000000 552.46389 2.05% - 1s 0 2 552.51491 0 84 564.00000 552.51491 2.04% - 1s 1463 302 560.86450 21 52 564.00000 557.51562 1.15% 11.7 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Mod-K: 1 Explored 4519 nodes (47711 simplex iterations) in 8.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 23), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (18, 45), (20, 41), (20, 42), (21, 36), (25, 44), (29, 32), (36, 37), (41, 43), (43, 45)] Optimize a model with 472 rows, 1275 columns and 86888 nonzeros Presolve time: 0.05s Presolved: 472 rows, 1275 columns, 86888 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.44048 3.94% - 0s 0 0 551.52779 0 67 573.00000 551.52779 3.75% - 0s 0 0 551.52779 0 56 573.00000 551.52779 3.75% - 0s 0 0 551.68278 0 67 573.00000 551.68278 3.72% - 0s 0 0 551.82984 0 69 573.00000 551.82984 3.69% - 0s 0 0 551.87553 0 70 573.00000 551.87553 3.69% - 0s 0 0 551.95807 0 69 573.00000 551.95807 3.67% - 0s 0 0 551.97204 0 74 573.00000 551.97204 3.67% - 0s 0 0 552.01235 0 73 573.00000 552.01235 3.66% - 0s 0 0 552.01235 0 77 573.00000 552.01235 3.66% - 0s 0 0 552.01909 0 80 573.00000 552.01909 3.66% - 0s 0 0 552.02058 0 79 573.00000 552.02058 3.66% - 0s 0 0 552.05950 0 72 573.00000 552.05950 3.65% - 0s 0 0 552.05974 0 76 573.00000 552.05974 3.65% - 0s 0 0 552.06631 0 81 573.00000 552.06631 3.65% - 0s 0 0 552.06697 0 79 573.00000 552.06697 3.65% - 0s 0 0 552.07628 0 79 573.00000 552.07628 3.65% - 1s 0 0 552.08829 0 80 573.00000 552.08829 3.65% - 1s 0 0 552.09560 0 76 573.00000 552.09560 3.65% - 1s 0 0 552.09560 0 80 573.00000 552.09560 3.65% - 1s 0 0 552.10117 0 79 573.00000 552.10117 3.65% - 1s 0 0 552.10117 0 80 573.00000 552.10117 3.65% - 1s 0 0 552.10621 0 80 573.00000 552.10621 3.65% - 1s 0 0 552.10634 0 81 573.00000 552.10634 3.65% - 1s 0 0 552.22883 0 79 573.00000 552.22883 3.62% - 1s 0 0 552.23046 0 80 573.00000 552.23046 3.62% - 1s 0 0 552.36444 0 80 573.00000 552.36444 3.60% - 1s 0 0 552.36547 0 81 573.00000 552.36547 3.60% - 1s 0 0 552.38742 0 81 573.00000 552.38742 3.60% - 1s H 0 0 566.0000000 552.38742 2.41% - 1s 0 0 552.39486 0 84 566.00000 552.39486 2.40% - 1s 0 2 553.25019 0 84 566.00000 553.25019 2.25% - 2s * 63 27 38 565.0000000 554.48296 1.86% 18.7 4s * 644 247 30 564.0000000 556.65609 1.30% 12.7 4s 750 268 558.25000 20 41 564.00000 557.06667 1.23% 12.4 5s Cutting planes: Gomory: 13 MIR: 9 Zero half: 17 Mod-K: 1 Explored 4049 nodes (43699 simplex iterations) in 9.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (9, 49), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35)] Optimize a model with 473 rows, 1275 columns and 87098 nonzeros Presolve time: 0.05s Presolved: 473 rows, 1275 columns, 87098 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 127 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.44048 2.58% - 0s 0 0 551.52779 0 67 565.00000 551.52779 2.38% - 0s 0 0 551.52779 0 56 565.00000 551.52779 2.38% - 0s 0 0 551.60436 0 65 565.00000 551.60436 2.37% - 0s 0 0 551.99304 0 70 565.00000 551.99304 2.30% - 0s 0 0 551.99304 0 73 565.00000 551.99304 2.30% - 0s 0 0 552.09389 0 68 565.00000 552.09389 2.28% - 0s 0 0 552.09389 0 72 565.00000 552.09389 2.28% - 0s 0 0 552.11962 0 71 565.00000 552.11962 2.28% - 0s 0 0 552.11962 0 74 565.00000 552.11962 2.28% - 0s 0 0 552.15699 0 75 565.00000 552.15699 2.27% - 0s 0 0 552.15699 0 78 565.00000 552.15699 2.27% - 0s 0 0 552.16883 0 77 565.00000 552.16883 2.27% - 0s 0 0 552.16883 0 80 565.00000 552.16883 2.27% - 0s 0 0 552.34041 0 68 565.00000 552.34041 2.24% - 0s 0 0 552.34041 0 72 565.00000 552.34041 2.24% - 0s 0 2 552.35892 0 72 565.00000 552.35892 2.24% - 1s * 499 209 19 564.0000000 556.12903 1.40% 11.8 2s 2091 302 561.73077 29 50 564.00000 559.45902 0.81% 11.5 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 7 Mod-K: 1 Explored 3259 nodes (34540 simplex iterations) in 6.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (9, 49), (11, 31), (11, 40), (14, 26), (14, 42), (15, 19), (15, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45), (45, 46)] Optimize a model with 474 rows, 1275 columns and 87449 nonzeros Presolve time: 0.05s Presolved: 474 rows, 1275 columns, 87449 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.504405e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.44048 0 56 1672.00000 550.44048 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.44048 3.77% - 0s 0 0 551.52779 0 67 572.00000 551.52779 3.58% - 0s 0 0 551.52779 0 56 572.00000 551.52779 3.58% - 0s 0 0 551.71779 0 68 572.00000 551.71779 3.55% - 0s 0 0 552.03126 0 74 572.00000 552.03126 3.49% - 0s 0 0 552.06206 0 74 572.00000 552.06206 3.49% - 0s 0 0 552.07495 0 76 572.00000 552.07495 3.48% - 0s 0 0 552.09957 0 74 572.00000 552.09957 3.48% - 0s 0 0 552.21103 0 69 572.00000 552.21103 3.46% - 0s 0 0 552.21103 0 73 572.00000 552.21103 3.46% - 0s 0 0 552.23752 0 68 572.00000 552.23752 3.45% - 0s 0 0 552.23752 0 72 572.00000 552.23752 3.45% - 0s 0 0 552.25268 0 75 572.00000 552.25268 3.45% - 0s 0 0 552.27191 0 78 572.00000 552.27191 3.45% - 0s H 0 0 571.0000000 552.27191 3.28% - 1s H 0 0 566.0000000 552.27191 2.43% - 1s 0 2 552.29750 0 78 566.00000 552.29750 2.42% - 1s * 158 100 23 565.0000000 554.93333 1.78% 13.2 1s * 280 131 18 564.0000000 555.43182 1.52% 11.9 2s 1935 257 560.26923 18 48 564.00000 559.30405 0.83% 11.3 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Mod-K: 1 Explored 3121 nodes (33068 simplex iterations) in 6.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 48), (10, 31), (10, 50), (11, 31), (11, 40), (16, 38), (16, 46), (17, 39), (17, 51), (18, 38), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (39, 50)] adding cut for [(41, 42), (43, 45), (14, 42), (14, 26), (15, 19), (15, 26), (20, 41), (20, 43)] Optimize a model with 476 rows, 1275 columns and 87836 nonzeros Presolve time: 0.05s Presolved: 476 rows, 1275 columns, 87836 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.72500 2.87% - 0s 0 0 551.31512 0 65 567.00000 551.31512 2.77% - 0s 0 0 551.31512 0 59 567.00000 551.31512 2.77% - 0s 0 0 551.74368 0 67 567.00000 551.74368 2.69% - 0s 0 0 551.84698 0 68 567.00000 551.84698 2.67% - 0s 0 0 551.87217 0 72 567.00000 551.87217 2.67% - 0s 0 0 552.02683 0 77 567.00000 552.02683 2.64% - 0s 0 0 552.15913 0 71 567.00000 552.15913 2.62% - 0s 0 0 552.17000 0 72 567.00000 552.17000 2.62% - 0s 0 0 552.18759 0 74 567.00000 552.18759 2.61% - 0s 0 0 552.26193 0 74 567.00000 552.26193 2.60% - 0s 0 0 552.31625 0 78 567.00000 552.31625 2.59% - 0s 0 0 552.33294 0 78 567.00000 552.33294 2.59% - 0s 0 0 552.34390 0 80 567.00000 552.34390 2.58% - 0s 0 0 552.35181 0 79 567.00000 552.35181 2.58% - 0s 0 0 552.36108 0 79 567.00000 552.36108 2.58% - 0s 0 0 552.37579 0 80 567.00000 552.37579 2.58% - 0s 0 0 552.38416 0 78 567.00000 552.38416 2.58% - 0s 0 2 552.39073 0 78 567.00000 552.39073 2.58% - 1s H 119 70 565.0000000 554.32830 1.89% 11.5 1s H 319 143 564.0000000 555.14750 1.57% 12.3 2s 1653 305 562.45000 28 46 564.00000 558.13953 1.04% 11.4 5s Cutting planes: Gomory: 4 MIR: 3 Zero half: 9 Explored 3698 nodes (37971 simplex iterations) in 6.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] adding cut for [(5, 48), (5, 18), (41, 42), (43, 45), (14, 42), (14, 26), (15, 26), (18, 45), (20, 41), (20, 43)] Optimize a model with 478 rows, 1275 columns and 88062 nonzeros Presolve time: 0.05s Presolved: 478 rows, 1275 columns, 88062 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.72500 3.55% - 0s 0 0 551.31512 0 65 571.00000 551.31512 3.45% - 0s 0 0 551.31512 0 59 571.00000 551.31512 3.45% - 0s 0 0 551.74001 0 66 571.00000 551.74001 3.37% - 0s 0 0 551.95788 0 66 571.00000 551.95788 3.33% - 0s 0 0 551.97796 0 71 571.00000 551.97796 3.33% - 0s 0 0 552.06459 0 75 571.00000 552.06459 3.32% - 0s 0 0 552.10477 0 76 571.00000 552.10477 3.31% - 0s 0 0 552.12541 0 76 571.00000 552.12541 3.31% - 0s 0 0 552.13001 0 78 571.00000 552.13001 3.30% - 0s 0 0 552.15132 0 82 571.00000 552.15132 3.30% - 0s 0 0 552.16040 0 84 571.00000 552.16040 3.30% - 0s 0 0 552.17585 0 81 571.00000 552.17585 3.30% - 0s 0 0 552.17641 0 84 571.00000 552.17641 3.30% - 0s 0 0 552.18502 0 77 571.00000 552.18502 3.30% - 0s 0 0 552.18911 0 83 571.00000 552.18911 3.29% - 1s 0 2 552.19503 0 83 571.00000 552.19503 3.29% - 1s H 90 67 566.0000000 554.33826 2.06% 12.5 2s * 327 180 9 565.0000000 555.08333 1.76% 12.1 2s * 359 177 17 564.0000000 555.14286 1.57% 11.9 2s 1299 321 559.44444 26 49 564.00000 556.80303 1.28% 12.3 5s Cutting planes: Gomory: 4 MIR: 3 Zero half: 9 Explored 4013 nodes (44403 simplex iterations) in 8.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(6, 50), (8, 24), (8, 27), (9, 27), (9, 49), (11, 40), (11, 50), (14, 26), (14, 42), (16, 38), (16, 46), (20, 41), (20, 43), (24, 44), (25, 26), (25, 44), (34, 40), (34, 46), (38, 45), (41, 42), (43, 45)] adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (10, 51), (10, 31), (17, 51), (17, 39), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 480 rows, 1275 columns and 88446 nonzeros Presolve time: 0.05s Presolved: 480 rows, 1275 columns, 88446 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.72500 2.70% - 0s 0 0 551.31512 0 65 566.00000 551.31512 2.59% - 0s 0 0 551.31512 0 59 566.00000 551.31512 2.59% - 0s 0 0 551.69727 0 65 566.00000 551.69727 2.53% - 0s 0 0 551.96979 0 72 566.00000 551.96979 2.48% - 0s 0 0 552.06995 0 71 566.00000 552.06995 2.46% - 0s 0 0 552.08186 0 73 566.00000 552.08186 2.46% - 0s 0 0 552.09617 0 75 566.00000 552.09617 2.46% - 0s 0 0 552.24518 0 69 566.00000 552.24518 2.43% - 0s 0 0 552.24518 0 73 566.00000 552.24518 2.43% - 0s 0 0 552.27098 0 75 566.00000 552.27098 2.43% - 0s 0 0 552.27098 0 78 566.00000 552.27098 2.43% - 0s 0 0 552.28131 0 77 566.00000 552.28131 2.42% - 0s 0 0 552.29359 0 79 566.00000 552.29359 2.42% - 0s 0 0 552.31058 0 82 566.00000 552.31058 2.42% - 0s 0 0 552.32912 0 78 566.00000 552.32912 2.42% - 0s 0 0 552.33096 0 82 566.00000 552.33096 2.42% - 0s 0 0 552.36564 0 79 566.00000 552.36564 2.41% - 0s 0 0 552.38414 0 80 566.00000 552.38414 2.41% - 0s 0 0 552.41342 0 79 566.00000 552.41342 2.40% - 0s 0 0 552.41625 0 77 566.00000 552.41625 2.40% - 0s 0 0 552.41984 0 78 566.00000 552.41984 2.40% - 0s 0 0 552.42476 0 81 566.00000 552.42476 2.40% - 0s 0 0 552.42498 0 82 566.00000 552.42498 2.40% - 1s 0 0 552.47663 0 80 566.00000 552.47663 2.39% - 1s 0 0 552.47925 0 79 566.00000 552.47925 2.39% - 1s 0 0 552.47947 0 82 566.00000 552.47947 2.39% - 1s 0 0 552.48105 0 84 566.00000 552.48105 2.39% - 1s 0 0 552.48815 0 83 566.00000 552.48815 2.39% - 1s 0 0 552.49264 0 82 566.00000 552.49264 2.39% - 1s 0 0 552.50140 0 83 566.00000 552.50140 2.38% - 1s 0 0 552.50145 0 83 566.00000 552.50145 2.38% - 1s 0 0 552.50249 0 80 566.00000 552.50249 2.38% - 1s 0 0 552.51032 0 82 566.00000 552.51032 2.38% - 1s 0 0 552.51512 0 80 566.00000 552.51512 2.38% - 1s 0 0 552.51549 0 76 566.00000 552.51549 2.38% - 1s 0 0 552.51550 0 82 566.00000 552.51550 2.38% - 1s 0 2 552.51706 0 82 566.00000 552.51706 2.38% - 2s H 665 336 564.0000000 556.12500 1.40% 13.0 4s 1001 354 561.84615 25 57 564.00000 556.61538 1.31% 13.0 5s Cutting planes: Gomory: 4 MIR: 2 Zero half: 11 Mod-K: 1 Explored 3273 nodes (37948 simplex iterations) in 7.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (7, 15), (8, 24), (8, 27), (9, 27), (9, 32), (11, 31), (11, 40), (14, 19), (14, 42), (15, 26), (16, 38), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 51), (23, 29), (24, 44), (25, 26), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 481 rows, 1275 columns and 89041 nonzeros Presolve time: 0.05s Presolved: 481 rows, 1275 columns, 89041 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.72500 2.87% - 0s 0 0 551.31512 0 65 567.00000 551.31512 2.77% - 0s 0 0 551.31512 0 59 567.00000 551.31512 2.77% - 0s 0 0 551.74368 0 67 567.00000 551.74368 2.69% - 0s 0 0 551.84698 0 68 567.00000 551.84698 2.67% - 0s 0 0 551.88187 0 72 567.00000 551.88187 2.67% - 0s 0 0 551.89687 0 74 567.00000 551.89687 2.66% - 0s 0 0 551.94061 0 73 567.00000 551.94061 2.66% - 0s 0 0 551.96793 0 72 567.00000 551.96793 2.65% - 0s 0 0 552.02784 0 74 567.00000 552.02784 2.64% - 0s 0 0 552.05094 0 75 567.00000 552.05094 2.64% - 0s 0 0 552.13296 0 72 567.00000 552.13296 2.62% - 0s 0 0 552.28240 0 75 567.00000 552.28240 2.60% - 0s 0 0 552.28335 0 76 567.00000 552.28335 2.60% - 0s 0 0 552.35440 0 70 567.00000 552.35440 2.58% - 0s 0 0 552.35440 0 74 567.00000 552.35440 2.58% - 0s 0 0 552.45988 0 75 567.00000 552.45988 2.56% - 0s 0 0 552.46203 0 76 567.00000 552.46203 2.56% - 0s 0 0 552.46597 0 77 567.00000 552.46597 2.56% - 0s 0 0 552.48497 0 75 567.00000 552.48497 2.56% - 0s 0 0 552.49833 0 69 567.00000 552.49833 2.56% - 0s 0 0 552.50031 0 75 567.00000 552.50031 2.56% - 0s 0 0 552.53261 0 79 567.00000 552.53261 2.55% - 0s 0 0 552.53300 0 80 567.00000 552.53300 2.55% - 0s H 0 0 565.0000000 552.53300 2.21% - 1s 0 2 552.54417 0 80 565.00000 552.54417 2.20% - 1s * 1132 327 31 564.0000000 556.63043 1.31% 12.2 4s 1539 314 cutoff 22 564.00000 558.00000 1.06% 11.9 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 9 Explored 3577 nodes (40104 simplex iterations) in 7.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 39), (39, 50), (10, 50), (10, 22), (21, 36), (21, 30), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(35, 51), (34, 40), (34, 46), (3, 12), (3, 17), (5, 19), (5, 18), (11, 40), (11, 31), (16, 46), (16, 18), (17, 51), (31, 35)] Optimize a model with 483 rows, 1275 columns and 89223 nonzeros Presolve time: 0.05s Presolved: 483 rows, 1275 columns, 89223 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.72500 2.53% - 0s 0 0 551.31512 0 65 565.00000 551.31512 2.42% - 0s 0 0 551.31512 0 59 565.00000 551.31512 2.42% - 0s 0 0 551.69727 0 65 565.00000 551.69727 2.35% - 0s 0 0 551.98624 0 68 565.00000 551.98624 2.30% - 0s 0 0 552.04895 0 71 565.00000 552.04895 2.29% - 0s 0 0 552.04895 0 72 565.00000 552.04895 2.29% - 0s 0 0 552.06034 0 73 565.00000 552.06034 2.29% - 0s 0 0 552.06034 0 74 565.00000 552.06034 2.29% - 0s 0 0 552.07634 0 72 565.00000 552.07634 2.29% - 0s 0 0 552.09225 0 71 565.00000 552.09225 2.28% - 0s 0 0 552.10711 0 76 565.00000 552.10711 2.28% - 0s 0 0 552.12146 0 76 565.00000 552.12146 2.28% - 0s 0 2 552.15949 0 76 565.00000 552.15949 2.27% - 1s * 566 249 13 564.0000000 556.28571 1.37% 11.9 2s 2141 355 560.39130 18 59 564.00000 558.75000 0.93% 10.9 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 3935 nodes (39758 simplex iterations) in 6.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 484 rows, 1275 columns and 89413 nonzeros Presolve time: 0.05s Presolved: 484 rows, 1275 columns, 89413 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.72500 2.53% - 0s 0 0 551.31512 0 65 565.00000 551.31512 2.42% - 0s 0 0 551.31512 0 59 565.00000 551.31512 2.42% - 0s 0 0 551.69727 0 65 565.00000 551.69727 2.35% - 0s 0 0 551.98624 0 68 565.00000 551.98624 2.30% - 0s 0 0 552.04895 0 71 565.00000 552.04895 2.29% - 0s 0 0 552.04895 0 72 565.00000 552.04895 2.29% - 0s 0 0 552.06034 0 73 565.00000 552.06034 2.29% - 0s 0 0 552.06034 0 74 565.00000 552.06034 2.29% - 0s 0 0 552.07634 0 72 565.00000 552.07634 2.29% - 0s 0 0 552.09225 0 71 565.00000 552.09225 2.28% - 0s 0 0 552.10711 0 76 565.00000 552.10711 2.28% - 0s 0 0 552.12146 0 76 565.00000 552.12146 2.28% - 0s 0 2 552.15949 0 76 565.00000 552.15949 2.27% - 1s H 448 204 564.0000000 556.08633 1.40% 12.4 2s 1860 337 cutoff 29 564.00000 558.55491 0.97% 11.9 5s Cutting planes: Gomory: 4 MIR: 2 Zero half: 6 Explored 3802 nodes (40955 simplex iterations) in 7.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (5, 14), (41, 42), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 35), (20, 41), (20, 43), (14, 42), (43, 45), (31, 50), (31, 35)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 39), (10, 51), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 486 rows, 1275 columns and 89708 nonzeros Presolve time: 0.05s Presolved: 486 rows, 1275 columns, 89708 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.72500 2.70% - 0s 0 0 551.31512 0 65 566.00000 551.31512 2.59% - 0s 0 0 551.31512 0 59 566.00000 551.31512 2.59% - 0s 0 0 551.68484 0 66 566.00000 551.68484 2.53% - 0s 0 0 551.95323 0 72 566.00000 551.95323 2.48% - 0s 0 0 552.03682 0 68 566.00000 552.03682 2.47% - 0s 0 0 552.04494 0 74 566.00000 552.04494 2.47% - 0s 0 0 552.25573 0 71 566.00000 552.25573 2.43% - 0s 0 0 552.25573 0 75 566.00000 552.25573 2.43% - 0s 0 0 552.25798 0 76 566.00000 552.25798 2.43% - 0s 0 0 552.27687 0 79 566.00000 552.27687 2.42% - 0s 0 0 552.28606 0 76 566.00000 552.28606 2.42% - 0s 0 0 552.28886 0 79 566.00000 552.28886 2.42% - 0s H 0 0 565.0000000 552.28886 2.25% - 1s 0 2 552.29739 0 79 565.00000 552.29739 2.25% - 1s * 680 285 39 564.0000000 556.59211 1.31% 12.6 3s 2007 283 562.33333 30 36 564.00000 559.33333 0.83% 11.5 5s Cutting planes: Gomory: 4 MIR: 2 Zero half: 10 Explored 3239 nodes (34763 simplex iterations) in 6.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (11, 40), (11, 50), (16, 38), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 487 rows, 1275 columns and 89961 nonzeros Presolve time: 0.05s Presolved: 487 rows, 1275 columns, 89961 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.72500 2.53% - 0s 0 0 551.31512 0 65 565.00000 551.31512 2.42% - 0s 0 0 551.31512 0 59 565.00000 551.31512 2.42% - 0s 0 0 551.69727 0 65 565.00000 551.69727 2.35% - 0s 0 0 551.98624 0 68 565.00000 551.98624 2.30% - 0s 0 0 552.04895 0 71 565.00000 552.04895 2.29% - 0s 0 0 552.04895 0 72 565.00000 552.04895 2.29% - 0s 0 0 552.06034 0 73 565.00000 552.06034 2.29% - 0s 0 0 552.06034 0 74 565.00000 552.06034 2.29% - 0s 0 0 552.07634 0 72 565.00000 552.07634 2.29% - 0s 0 0 552.09225 0 71 565.00000 552.09225 2.28% - 0s 0 0 552.10711 0 76 565.00000 552.10711 2.28% - 0s 0 0 552.12146 0 76 565.00000 552.12146 2.28% - 0s 0 2 552.15949 0 76 565.00000 552.15949 2.27% - 1s * 442 186 12 564.0000000 556.00000 1.42% 12.5 1s 1822 337 562.28571 27 53 564.00000 558.22656 1.02% 11.4 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 3988 nodes (40418 simplex iterations) in 7.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (11, 31), (11, 40), (15, 25), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 488 rows, 1275 columns and 90237 nonzeros Presolve time: 0.05s Presolved: 488 rows, 1275 columns, 90237 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.72500 3.38% - 0s 0 0 551.31512 0 65 570.00000 551.31512 3.28% - 0s 0 0 551.31512 0 59 570.00000 551.31512 3.28% - 0s 0 0 551.74001 0 66 570.00000 551.74001 3.20% - 0s 0 0 551.95788 0 66 570.00000 551.95788 3.17% - 0s 0 0 551.97796 0 71 570.00000 551.97796 3.16% - 0s 0 0 552.06459 0 75 570.00000 552.06459 3.15% - 0s 0 0 552.10477 0 76 570.00000 552.10477 3.14% - 0s 0 0 552.12541 0 76 570.00000 552.12541 3.14% - 0s 0 0 552.13001 0 78 570.00000 552.13001 3.14% - 0s 0 0 552.15132 0 82 570.00000 552.15132 3.13% - 0s 0 0 552.16040 0 84 570.00000 552.16040 3.13% - 0s 0 0 552.17585 0 81 570.00000 552.17585 3.13% - 0s 0 0 552.17641 0 84 570.00000 552.17641 3.13% - 0s 0 0 552.18502 0 77 570.00000 552.18502 3.13% - 0s 0 0 552.18911 0 83 570.00000 552.18911 3.12% - 0s H 0 0 569.0000000 552.18911 2.95% - 1s 0 2 552.19503 0 83 569.00000 552.19503 2.95% - 1s * 83 63 36 566.0000000 554.04762 2.11% 11.1 2s * 445 213 22 565.0000000 555.77778 1.63% 11.8 2s 1332 372 558.20000 20 41 565.00000 556.89977 1.43% 11.8 5s * 1959 375 26 564.0000000 558.30000 1.01% 11.8 5s Cutting planes: Gomory: 4 MIR: 3 Zero half: 9 Explored 3886 nodes (43029 simplex iterations) in 8.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 48), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (24, 25), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 489 rows, 1275 columns and 90765 nonzeros Presolve time: 0.05s Presolved: 489 rows, 1275 columns, 90765 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 146 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.72500 2.87% - 0s 0 0 551.31512 0 65 567.00000 551.31512 2.77% - 0s 0 0 551.31512 0 59 567.00000 551.31512 2.77% - 0s 0 0 551.74368 0 67 567.00000 551.74368 2.69% - 0s 0 0 551.84698 0 68 567.00000 551.84698 2.67% - 0s 0 0 551.88187 0 72 567.00000 551.88187 2.67% - 0s 0 0 551.89687 0 74 567.00000 551.89687 2.66% - 0s 0 0 551.94061 0 73 567.00000 551.94061 2.66% - 0s 0 0 551.96793 0 72 567.00000 551.96793 2.65% - 0s 0 0 552.02784 0 74 567.00000 552.02784 2.64% - 0s 0 0 552.05094 0 75 567.00000 552.05094 2.64% - 0s 0 0 552.13296 0 72 567.00000 552.13296 2.62% - 0s 0 0 552.28240 0 75 567.00000 552.28240 2.60% - 0s 0 0 552.28335 0 76 567.00000 552.28335 2.60% - 0s 0 0 552.35440 0 70 567.00000 552.35440 2.58% - 0s 0 0 552.35440 0 74 567.00000 552.35440 2.58% - 0s 0 0 552.45988 0 75 567.00000 552.45988 2.56% - 0s 0 0 552.46203 0 76 567.00000 552.46203 2.56% - 0s 0 0 552.46597 0 77 567.00000 552.46597 2.56% - 0s 0 0 552.48497 0 75 567.00000 552.48497 2.56% - 0s 0 0 552.49833 0 69 567.00000 552.49833 2.56% - 0s 0 0 552.50031 0 75 567.00000 552.50031 2.56% - 0s 0 0 552.53261 0 79 567.00000 552.53261 2.55% - 0s 0 0 552.53300 0 80 567.00000 552.53300 2.55% - 0s 0 2 552.54417 0 80 567.00000 552.54417 2.55% - 1s * 251 130 16 565.0000000 554.96520 1.78% 11.5 2s * 734 308 32 564.0000000 556.86842 1.26% 12.1 4s 1363 299 562.38462 34 34 564.00000 557.26389 1.19% 11.4 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 9 Explored 3714 nodes (39408 simplex iterations) in 7.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (12, 17), (15, 26), (17, 51), (21, 36), (22, 30), (22, 35), (23, 29), (24, 44), (25, 26), (25, 44), (29, 32), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 39), (39, 50), (41, 42), (10, 50), (10, 31), (11, 40), (11, 31), (16, 45), (16, 46), (20, 43), (20, 41), (14, 19), (14, 42)] Optimize a model with 491 rows, 1275 columns and 91132 nonzeros Presolve time: 0.05s Presolved: 491 rows, 1275 columns, 91132 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.72500 3.04% - 0s 0 0 551.31512 0 65 568.00000 551.31512 2.94% - 0s 0 0 551.31512 0 59 568.00000 551.31512 2.94% - 0s 0 0 551.74368 0 67 568.00000 551.74368 2.86% - 0s 0 0 551.83068 0 69 568.00000 551.83068 2.85% - 0s 0 0 551.96840 0 65 568.00000 551.96840 2.82% - 0s 0 0 551.97560 0 72 568.00000 551.97560 2.82% - 0s 0 0 552.07206 0 77 568.00000 552.07206 2.80% - 0s 0 0 552.08491 0 80 568.00000 552.08491 2.80% - 0s 0 0 552.17943 0 80 568.00000 552.17943 2.79% - 0s 0 0 552.19753 0 84 568.00000 552.19753 2.78% - 0s 0 0 552.21802 0 78 568.00000 552.21802 2.78% - 0s 0 0 552.23448 0 79 568.00000 552.23448 2.78% - 0s 0 0 552.24849 0 79 568.00000 552.24849 2.77% - 0s 0 0 552.25082 0 80 568.00000 552.25082 2.77% - 0s 0 0 552.26461 0 84 568.00000 552.26461 2.77% - 0s 0 0 552.26695 0 80 568.00000 552.26695 2.77% - 0s 0 0 552.27127 0 82 568.00000 552.27127 2.77% - 0s 0 0 552.35051 0 86 568.00000 552.35051 2.76% - 0s 0 0 552.38552 0 86 568.00000 552.38552 2.75% - 0s H 0 0 566.0000000 552.38552 2.41% - 1s 0 2 552.40405 0 86 566.00000 552.40405 2.40% - 1s * 461 206 16 564.0000000 556.50000 1.33% 13.3 2s 1539 260 560.13456 16 56 564.00000 558.00000 1.06% 12.2 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 13 Explored 3360 nodes (38259 simplex iterations) in 7.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 19), (11, 40), (11, 50), (16, 18), (16, 46), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 492 rows, 1275 columns and 91385 nonzeros Presolve time: 0.05s Presolved: 492 rows, 1275 columns, 91385 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.72500 3.04% - 0s 0 0 551.31512 0 65 568.00000 551.31512 2.94% - 0s 0 0 551.31512 0 59 568.00000 551.31512 2.94% - 0s 0 0 551.74368 0 67 568.00000 551.74368 2.86% - 0s 0 0 551.83068 0 69 568.00000 551.83068 2.85% - 0s 0 0 551.96840 0 65 568.00000 551.96840 2.82% - 0s 0 0 551.97560 0 72 568.00000 551.97560 2.82% - 0s 0 0 552.07206 0 77 568.00000 552.07206 2.80% - 0s 0 0 552.08491 0 80 568.00000 552.08491 2.80% - 0s 0 0 552.17943 0 80 568.00000 552.17943 2.79% - 0s 0 0 552.19753 0 84 568.00000 552.19753 2.78% - 0s 0 0 552.21802 0 78 568.00000 552.21802 2.78% - 0s 0 0 552.23448 0 79 568.00000 552.23448 2.78% - 0s 0 0 552.24849 0 79 568.00000 552.24849 2.77% - 0s 0 0 552.25082 0 80 568.00000 552.25082 2.77% - 0s 0 0 552.26461 0 84 568.00000 552.26461 2.77% - 0s 0 0 552.26695 0 80 568.00000 552.26695 2.77% - 0s 0 0 552.27127 0 82 568.00000 552.27127 2.77% - 0s 0 0 552.35051 0 86 568.00000 552.35051 2.76% - 0s 0 0 552.38552 0 86 568.00000 552.38552 2.75% - 0s H 0 0 565.0000000 552.38552 2.23% - 1s 0 2 552.46007 0 86 565.00000 552.46007 2.22% - 1s * 524 232 21 564.0000000 556.40274 1.35% 11.8 2s 1450 261 cutoff 33 564.00000 557.75758 1.11% 11.8 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 13 Explored 3748 nodes (38241 simplex iterations) in 7.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (11, 31), (11, 40), (14, 19), (14, 42), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45), (45, 46)] Optimize a model with 493 rows, 1275 columns and 91638 nonzeros Presolve time: 0.05s Presolved: 493 rows, 1275 columns, 91638 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 134 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.72500 3.21% - 0s 0 0 551.31512 0 65 569.00000 551.31512 3.11% - 0s 0 0 551.31512 0 59 569.00000 551.31512 3.11% - 0s 0 0 551.74368 0 67 569.00000 551.74368 3.03% - 0s 0 0 551.83384 0 65 569.00000 551.83384 3.02% - 0s 0 0 551.84802 0 73 569.00000 551.84802 3.01% - 0s 0 0 552.08877 0 76 569.00000 552.08877 2.97% - 0s 0 0 552.17716 0 74 569.00000 552.17716 2.96% - 0s 0 0 552.17716 0 77 569.00000 552.17716 2.96% - 0s 0 0 552.33127 0 74 569.00000 552.33127 2.93% - 0s 0 0 552.33687 0 76 569.00000 552.33687 2.93% - 0s 0 0 552.36224 0 77 569.00000 552.36224 2.92% - 0s 0 0 552.37353 0 81 569.00000 552.37353 2.92% - 0s 0 0 552.38321 0 80 569.00000 552.38321 2.92% - 0s 0 0 552.40016 0 79 569.00000 552.40016 2.92% - 0s 0 0 552.48534 0 78 569.00000 552.48534 2.90% - 0s 0 0 552.49009 0 77 569.00000 552.49009 2.90% - 0s 0 0 552.49592 0 79 569.00000 552.49592 2.90% - 0s 0 0 552.50333 0 79 569.00000 552.50333 2.90% - 0s 0 0 552.52080 0 82 569.00000 552.52080 2.90% - 0s 0 0 552.53311 0 79 569.00000 552.53311 2.89% - 0s H 0 0 568.0000000 552.53311 2.72% - 1s H 0 0 566.0000000 552.53311 2.38% - 1s 0 2 552.58239 0 79 566.00000 552.58239 2.37% - 1s H 600 323 565.0000000 556.27907 1.54% 11.4 2s * 972 376 20 564.0000000 556.27907 1.37% 12.3 4s 1398 330 560.38462 24 44 564.00000 557.29975 1.19% 12.1 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 10 Mod-K: 1 Explored 3795 nodes (43838 simplex iterations) in 8.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (12, 39), (15, 26), (17, 39), (17, 51), (21, 36), (22, 30), (22, 51), (23, 29), (24, 44), (25, 26), (25, 44), (29, 32), (36, 37)] adding cut for [(34, 40), (34, 46), (6, 50), (41, 42), (10, 35), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (43, 45), (20, 41), (20, 43), (14, 19), (14, 42), (31, 35)] Optimize a model with 495 rows, 1275 columns and 92005 nonzeros Presolve time: 0.05s Presolved: 495 rows, 1275 columns, 92005 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.72500 3.04% - 0s 0 0 551.31512 0 65 568.00000 551.31512 2.94% - 0s 0 0 551.31512 0 59 568.00000 551.31512 2.94% - 0s 0 0 551.74368 0 67 568.00000 551.74368 2.86% - 0s 0 0 551.84698 0 68 568.00000 551.84698 2.84% - 0s 0 0 551.88187 0 72 568.00000 551.88187 2.84% - 0s 0 0 551.89687 0 74 568.00000 551.89687 2.84% - 0s 0 0 551.94061 0 73 568.00000 551.94061 2.83% - 0s 0 0 551.96823 0 73 568.00000 551.96823 2.82% - 0s 0 0 551.98124 0 77 568.00000 551.98124 2.82% - 0s 0 0 552.21684 0 76 568.00000 552.21684 2.78% - 0s 0 0 552.23964 0 78 568.00000 552.23964 2.77% - 0s 0 0 552.27048 0 76 568.00000 552.27048 2.77% - 0s 0 0 552.40067 0 68 568.00000 552.40067 2.75% - 0s 0 0 552.42516 0 75 568.00000 552.42516 2.74% - 0s 0 0 552.43951 0 77 568.00000 552.43951 2.74% - 0s 0 0 552.44037 0 76 568.00000 552.44037 2.74% - 0s 0 0 552.44325 0 77 568.00000 552.44325 2.74% - 0s 0 0 552.44570 0 80 568.00000 552.44570 2.74% - 0s 0 0 552.44731 0 81 568.00000 552.44731 2.74% - 0s 0 2 552.45064 0 81 568.00000 552.45064 2.74% - 1s H 37 21 565.0000000 553.98509 1.95% 13.5 1s * 523 245 17 564.0000000 556.43750 1.34% 11.6 2s 1498 333 558.03509 20 51 564.00000 557.80000 1.10% 11.7 5s Cutting planes: Gomory: 5 MIR: 3 Zero half: 9 Explored 4227 nodes (43841 simplex iterations) in 7.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (6, 16), (9, 49), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 496 rows, 1275 columns and 92195 nonzeros Presolve time: 0.05s Presolved: 496 rows, 1275 columns, 92195 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.72500 3.04% - 0s 0 0 551.31512 0 65 568.00000 551.31512 2.94% - 0s 0 0 551.31512 0 59 568.00000 551.31512 2.94% - 0s 0 0 551.74368 0 67 568.00000 551.74368 2.86% - 0s 0 0 551.84698 0 68 568.00000 551.84698 2.84% - 0s 0 0 551.88187 0 72 568.00000 551.88187 2.84% - 0s 0 0 551.89687 0 74 568.00000 551.89687 2.84% - 0s 0 0 551.94061 0 73 568.00000 551.94061 2.83% - 0s 0 0 551.96823 0 73 568.00000 551.96823 2.82% - 0s 0 0 551.98124 0 77 568.00000 551.98124 2.82% - 0s 0 0 552.21684 0 76 568.00000 552.21684 2.78% - 0s 0 0 552.23964 0 78 568.00000 552.23964 2.77% - 0s 0 0 552.27048 0 76 568.00000 552.27048 2.77% - 0s 0 0 552.40067 0 68 568.00000 552.40067 2.75% - 0s 0 0 552.42516 0 75 568.00000 552.42516 2.74% - 0s 0 0 552.43951 0 77 568.00000 552.43951 2.74% - 0s 0 0 552.44037 0 76 568.00000 552.44037 2.74% - 0s 0 0 552.44325 0 77 568.00000 552.44325 2.74% - 0s 0 0 552.44570 0 80 568.00000 552.44570 2.74% - 0s 0 0 552.44731 0 81 568.00000 552.44731 2.74% - 0s 0 2 552.45064 0 81 568.00000 552.45064 2.74% - 1s * 340 168 22 565.0000000 554.85065 1.80% 11.2 2s * 559 236 17 564.0000000 556.00000 1.42% 10.9 2s 1540 234 560.77778 17 53 564.00000 557.75599 1.11% 11.8 5s Cutting planes: Gomory: 5 MIR: 3 Zero half: 9 Explored 3387 nodes (37028 simplex iterations) in 7.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 19), (10, 50), (10, 51), (11, 31), (11, 40), (16, 18), (16, 46), (17, 22), (17, 39), (21, 36), (22, 30), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (39, 50)] adding cut for [(38, 45), (41, 42), (43, 45), (13, 38), (14, 42), (14, 26), (20, 41), (20, 43), (15, 26)] Optimize a model with 498 rows, 1275 columns and 92565 nonzeros Presolve time: 0.05s Presolved: 498 rows, 1275 columns, 92565 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.72500 3.21% - 0s 0 0 551.31512 0 65 569.00000 551.31512 3.11% - 0s 0 0 551.31512 0 59 569.00000 551.31512 3.11% - 0s 0 0 551.74368 0 67 569.00000 551.74368 3.03% - 0s 0 0 551.82673 0 70 569.00000 551.82673 3.02% - 0s 0 0 551.97106 0 68 569.00000 551.97106 2.99% - 0s 0 0 551.97461 0 73 569.00000 551.97461 2.99% - 0s 0 0 551.99319 0 74 569.00000 551.99319 2.99% - 0s 0 0 552.10150 0 75 569.00000 552.10150 2.97% - 0s 0 0 552.12975 0 75 569.00000 552.12975 2.96% - 0s 0 0 552.16693 0 77 569.00000 552.16693 2.96% - 0s 0 0 552.20177 0 84 569.00000 552.20177 2.95% - 0s 0 0 552.23645 0 78 569.00000 552.23645 2.95% - 0s 0 0 552.24499 0 83 569.00000 552.24499 2.94% - 0s 0 0 552.30167 0 77 569.00000 552.30167 2.93% - 0s 0 0 552.34101 0 81 569.00000 552.34101 2.93% - 0s 0 0 552.34441 0 84 569.00000 552.34441 2.93% - 0s 0 0 552.46630 0 75 569.00000 552.46630 2.91% - 0s 0 0 552.57596 0 70 569.00000 552.57596 2.89% - 0s 0 0 552.57881 0 77 569.00000 552.57881 2.89% - 0s 0 0 552.61364 0 80 569.00000 552.61364 2.88% - 0s 0 0 552.62383 0 75 569.00000 552.62383 2.88% - 1s 0 0 552.62520 0 80 569.00000 552.62520 2.88% - 1s 0 0 552.62761 0 81 569.00000 552.62761 2.88% - 1s 0 0 552.62761 0 84 569.00000 552.62761 2.88% - 1s H 0 0 566.0000000 552.62761 2.36% - 1s 0 2 552.66237 0 84 566.00000 552.66237 2.36% - 1s H 273 143 565.0000000 555.15873 1.74% 13.7 2s H 600 264 564.0000000 556.43659 1.34% 13.0 3s 1217 277 cutoff 24 564.00000 557.33333 1.18% 12.8 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 8 Explored 3268 nodes (36963 simplex iterations) in 7.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 38), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 38), (16, 46), (31, 35)] adding cut for [(2, 23), (3, 33), (3, 17), (4, 37), (4, 29), (17, 22), (21, 36), (21, 30), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 500 rows, 1275 columns and 92734 nonzeros Presolve time: 0.05s Presolved: 500 rows, 1275 columns, 92734 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 136 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 564.0000000 550.72500 2.35% - 0s 0 0 551.31512 0 65 564.00000 551.31512 2.25% - 0s 0 0 551.31512 0 59 564.00000 551.31512 2.25% - 0s 0 0 551.68484 0 66 564.00000 551.68484 2.18% - 0s 0 0 551.95323 0 72 564.00000 551.95323 2.14% - 0s 0 0 552.03629 0 69 564.00000 552.03629 2.12% - 0s 0 0 552.05961 0 72 564.00000 552.05961 2.12% - 0s 0 0 552.09321 0 72 564.00000 552.09321 2.11% - 0s 0 0 552.09528 0 75 564.00000 552.09528 2.11% - 0s 0 0 552.10302 0 75 564.00000 552.10302 2.11% - 0s 0 0 552.10895 0 77 564.00000 552.10895 2.11% - 0s 0 0 552.18924 0 71 564.00000 552.18924 2.09% - 0s 0 0 552.18924 0 74 564.00000 552.18924 2.09% - 0s 0 0 552.21220 0 72 564.00000 552.21220 2.09% - 0s 0 0 552.21220 0 75 564.00000 552.21220 2.09% - 0s 0 0 552.23363 0 70 564.00000 552.23363 2.09% - 0s 0 0 552.23749 0 76 564.00000 552.23749 2.09% - 0s 0 0 552.25547 0 76 564.00000 552.25547 2.08% - 0s 0 0 552.26594 0 79 564.00000 552.26594 2.08% - 0s 0 0 552.26594 0 82 564.00000 552.26594 2.08% - 0s 0 0 552.27305 0 80 564.00000 552.27305 2.08% - 0s 0 0 552.28244 0 84 564.00000 552.28244 2.08% - 0s 0 0 552.28800 0 84 564.00000 552.28800 2.08% - 0s 0 0 552.30334 0 81 564.00000 552.30334 2.07% - 0s 0 0 552.31684 0 81 564.00000 552.31684 2.07% - 0s 0 0 552.32464 0 84 564.00000 552.32464 2.07% - 0s 0 0 552.37809 0 74 564.00000 552.37809 2.06% - 0s 0 0 552.46092 0 73 564.00000 552.46092 2.05% - 0s 0 0 552.46499 0 73 564.00000 552.46499 2.05% - 1s 0 0 552.46499 0 73 564.00000 552.46499 2.05% - 1s 0 2 552.48818 0 73 564.00000 552.48818 2.04% - 1s 1771 338 cutoff 24 564.00000 557.83333 1.09% 12.2 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 3893 nodes (43445 simplex iterations) in 7.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (2, 23), (4, 37), (4, 29), (10, 51), (10, 31), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 501 rows, 1275 columns and 92870 nonzeros Presolve time: 0.05s Presolved: 501 rows, 1275 columns, 92870 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507250e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.72500 0 59 1672.00000 550.72500 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.72500 3.04% - 0s 0 0 551.31512 0 65 568.00000 551.31512 2.94% - 0s 0 0 551.31512 0 59 568.00000 551.31512 2.94% - 0s 0 0 551.74368 0 67 568.00000 551.74368 2.86% - 0s 0 0 551.84698 0 68 568.00000 551.84698 2.84% - 0s 0 0 551.88187 0 72 568.00000 551.88187 2.84% - 0s 0 0 551.89687 0 74 568.00000 551.89687 2.84% - 0s 0 0 551.94061 0 73 568.00000 551.94061 2.83% - 0s 0 0 551.96793 0 72 568.00000 551.96793 2.82% - 0s 0 0 552.02874 0 74 568.00000 552.02874 2.81% - 0s 0 0 552.05283 0 77 568.00000 552.05283 2.81% - 0s 0 0 552.12215 0 74 568.00000 552.12215 2.80% - 0s 0 0 552.24784 0 73 568.00000 552.24784 2.77% - 0s 0 0 552.26989 0 75 568.00000 552.26989 2.77% - 0s 0 0 552.34840 0 75 568.00000 552.34840 2.76% - 0s 0 0 552.38793 0 79 568.00000 552.38793 2.75% - 0s 0 0 552.40636 0 74 568.00000 552.40636 2.75% - 0s 0 0 552.42762 0 79 568.00000 552.42762 2.74% - 0s 0 0 552.43071 0 80 568.00000 552.43071 2.74% - 0s 0 0 552.43702 0 78 568.00000 552.43702 2.74% - 0s 0 0 552.43906 0 86 568.00000 552.43906 2.74% - 0s 0 0 552.47483 0 78 568.00000 552.47483 2.73% - 0s 0 0 552.47865 0 82 568.00000 552.47865 2.73% - 1s 0 0 552.48253 0 84 568.00000 552.48253 2.73% - 1s 0 0 552.48672 0 82 568.00000 552.48672 2.73% - 1s 0 0 552.48852 0 84 568.00000 552.48852 2.73% - 1s 0 2 552.49312 0 84 568.00000 552.49312 2.73% - 2s * 73 56 28 566.0000000 553.86577 2.14% 13.0 2s * 442 212 20 565.0000000 555.76852 1.63% 13.4 2s 979 311 556.62500 18 49 565.00000 556.46494 1.51% 13.5 5s * 1218 274 31 564.0000000 557.20000 1.21% 13.2 5s Cutting planes: Gomory: 3 MIR: 3 Zero half: 13 Mod-K: 1 Explored 2911 nodes (33589 simplex iterations) in 7.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 4), (36, 37), (10, 51), (10, 31), (12, 39), (17, 51), (17, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (31, 35)] adding cut for [(38, 45), (7, 15), (41, 42), (43, 45), (14, 42), (14, 26), (15, 26), (20, 41), (20, 43)] Optimize a model with 503 rows, 1275 columns and 93006 nonzeros Presolve time: 0.05s Presolved: 503 rows, 1275 columns, 93006 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 142 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67512 0 64 566.00000 551.67512 2.53% - 0s 0 0 551.67512 0 57 566.00000 551.67512 2.53% - 0s 0 0 551.67512 0 65 566.00000 551.67512 2.53% - 0s 0 0 551.84659 0 67 566.00000 551.84659 2.50% - 0s 0 0 552.13686 0 71 566.00000 552.13686 2.45% - 0s 0 0 552.13710 0 75 566.00000 552.13710 2.45% - 0s 0 0 552.18108 0 74 566.00000 552.18108 2.44% - 0s 0 0 552.27777 0 75 566.00000 552.27777 2.42% - 0s 0 0 552.27777 0 78 566.00000 552.27777 2.42% - 0s 0 0 552.28219 0 78 566.00000 552.28219 2.42% - 0s H 0 0 565.0000000 552.28219 2.25% - 0s 0 0 552.39288 0 66 565.00000 552.39288 2.23% - 0s 0 0 552.39288 0 70 565.00000 552.39288 2.23% - 0s 0 0 552.43491 0 68 565.00000 552.43491 2.22% - 0s 0 0 552.43571 0 76 565.00000 552.43571 2.22% - 0s 0 0 552.45191 0 70 565.00000 552.45191 2.22% - 0s 0 0 552.45191 0 73 565.00000 552.45191 2.22% - 0s 0 0 552.48430 0 73 565.00000 552.48430 2.22% - 0s 0 0 552.48430 0 76 565.00000 552.48430 2.22% - 0s 0 0 552.49378 0 74 565.00000 552.49378 2.21% - 0s 0 0 552.52631 0 72 565.00000 552.52631 2.21% - 0s 0 0 552.53414 0 75 565.00000 552.53414 2.21% - 0s 0 0 552.55201 0 80 565.00000 552.55201 2.20% - 1s 0 0 552.57223 0 73 565.00000 552.57223 2.20% - 1s 0 0 552.57223 0 76 565.00000 552.57223 2.20% - 1s 0 0 552.57928 0 70 565.00000 552.57928 2.20% - 1s 0 0 552.57928 0 73 565.00000 552.57928 2.20% - 1s 0 0 552.58225 0 69 565.00000 552.58225 2.20% - 1s 0 0 552.58225 0 73 565.00000 552.58225 2.20% - 1s 0 0 552.62254 0 68 565.00000 552.62254 2.19% - 1s 0 0 552.62254 0 71 565.00000 552.62254 2.19% - 1s 0 0 552.69524 0 68 565.00000 552.69524 2.18% - 1s 0 0 552.70049 0 76 565.00000 552.70049 2.18% - 1s 0 0 552.71548 0 70 565.00000 552.71548 2.17% - 1s 0 0 552.71637 0 75 565.00000 552.71637 2.17% - 1s 0 0 552.71748 0 76 565.00000 552.71748 2.17% - 1s 0 0 552.71815 0 77 565.00000 552.71815 2.17% - 1s 0 2 552.72940 0 77 565.00000 552.72940 2.17% - 2s * 1136 336 31 564.0000000 556.69231 1.30% 12.2 4s 1350 315 561.64286 28 52 564.00000 557.24390 1.20% 12.0 5s Cutting planes: MIR: 1 Zero half: 13 Explored 4657 nodes (50130 simplex iterations) in 9.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (8, 24), (8, 27), (9, 32), (9, 27), (15, 26), (25, 44), (25, 26), (21, 36), (24, 44), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 45), (16, 46), (17, 51), (17, 30), (22, 35), (22, 30), (31, 35)] Optimize a model with 505 rows, 1275 columns and 93278 nonzeros Presolve time: 0.05s Presolved: 505 rows, 1275 columns, 93278 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.66596 0 64 568.00000 551.66596 2.88% - 0s 0 0 551.66596 0 57 568.00000 551.66596 2.88% - 0s 0 0 551.79000 0 64 568.00000 551.79000 2.85% - 0s 0 0 551.92147 0 65 568.00000 551.92147 2.83% - 0s 0 0 551.93348 0 69 568.00000 551.93348 2.83% - 0s 0 0 552.04538 0 71 568.00000 552.04538 2.81% - 0s 0 0 552.12146 0 75 568.00000 552.12146 2.80% - 0s 0 0 552.13542 0 77 568.00000 552.13542 2.79% - 0s 0 0 552.14937 0 73 568.00000 552.14937 2.79% - 0s 0 0 552.24114 0 75 568.00000 552.24114 2.77% - 0s 0 0 552.24114 0 78 568.00000 552.24114 2.77% - 0s 0 0 552.28814 0 79 568.00000 552.28814 2.77% - 0s 0 0 552.44068 0 68 568.00000 552.44068 2.74% - 0s 0 0 552.48319 0 71 568.00000 552.48319 2.73% - 0s 0 0 552.51974 0 70 568.00000 552.51974 2.73% - 0s 0 0 552.52158 0 74 568.00000 552.52158 2.73% - 0s 0 0 552.52927 0 73 568.00000 552.52927 2.72% - 0s 0 0 552.53162 0 77 568.00000 552.53162 2.72% - 0s 0 0 552.54718 0 70 568.00000 552.54718 2.72% - 0s 0 0 552.55725 0 73 568.00000 552.55725 2.72% - 0s 0 0 552.55858 0 76 568.00000 552.55858 2.72% - 0s 0 0 552.56072 0 80 568.00000 552.56072 2.72% - 1s 0 0 552.59193 0 75 568.00000 552.59193 2.71% - 1s 0 0 552.59735 0 83 568.00000 552.59735 2.71% - 1s 0 0 552.59772 0 82 568.00000 552.59772 2.71% - 1s 0 0 552.59772 0 85 568.00000 552.59772 2.71% - 1s 0 0 552.62141 0 80 568.00000 552.62141 2.71% - 1s 0 0 552.62180 0 84 568.00000 552.62180 2.71% - 1s 0 0 552.63129 0 82 568.00000 552.63129 2.71% - 1s 0 0 552.63186 0 85 568.00000 552.63186 2.71% - 1s 0 0 552.63875 0 78 568.00000 552.63875 2.70% - 1s 0 0 552.64351 0 81 568.00000 552.64351 2.70% - 1s 0 0 552.65056 0 73 568.00000 552.65056 2.70% - 1s 0 0 552.65082 0 80 568.00000 552.65082 2.70% - 1s 0 0 552.65749 0 75 568.00000 552.65749 2.70% - 1s 0 0 552.65749 0 78 568.00000 552.65749 2.70% - 1s 0 0 552.65749 0 78 568.00000 552.65749 2.70% - 1s H 0 0 566.0000000 552.65749 2.36% - 2s 0 2 552.65887 0 78 566.00000 552.65887 2.36% - 2s * 78 43 30 565.0000000 554.52381 1.85% 12.9 2s 830 270 556.88532 16 59 565.00000 556.88532 1.44% 13.6 5s * 1320 245 24 564.0000000 557.45455 1.16% 13.0 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Mod-K: 2 Explored 3147 nodes (36949 simplex iterations) in 7.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (11, 40), (11, 50), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 506 rows, 1275 columns and 93509 nonzeros Presolve time: 0.05s Presolved: 506 rows, 1275 columns, 93509 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.66596 0 64 568.00000 551.66596 2.88% - 0s 0 0 551.66596 0 57 568.00000 551.66596 2.88% - 0s 0 0 551.79000 0 64 568.00000 551.79000 2.85% - 0s 0 0 551.92147 0 65 568.00000 551.92147 2.83% - 0s 0 0 551.93348 0 69 568.00000 551.93348 2.83% - 0s 0 0 552.04538 0 71 568.00000 552.04538 2.81% - 0s 0 0 552.12146 0 75 568.00000 552.12146 2.80% - 0s 0 0 552.13542 0 77 568.00000 552.13542 2.79% - 0s 0 0 552.14937 0 73 568.00000 552.14937 2.79% - 0s 0 0 552.24114 0 75 568.00000 552.24114 2.77% - 0s 0 0 552.24114 0 78 568.00000 552.24114 2.77% - 0s 0 0 552.28814 0 79 568.00000 552.28814 2.77% - 0s 0 0 552.44068 0 68 568.00000 552.44068 2.74% - 0s 0 0 552.48319 0 71 568.00000 552.48319 2.73% - 0s 0 0 552.51974 0 70 568.00000 552.51974 2.73% - 0s 0 0 552.52158 0 74 568.00000 552.52158 2.73% - 0s 0 0 552.52927 0 73 568.00000 552.52927 2.72% - 0s 0 0 552.53162 0 77 568.00000 552.53162 2.72% - 0s 0 0 552.54718 0 70 568.00000 552.54718 2.72% - 0s 0 0 552.55725 0 73 568.00000 552.55725 2.72% - 0s 0 0 552.55858 0 76 568.00000 552.55858 2.72% - 0s 0 0 552.56072 0 80 568.00000 552.56072 2.72% - 0s 0 0 552.59193 0 76 568.00000 552.59193 2.71% - 1s 0 0 552.60021 0 80 568.00000 552.60021 2.71% - 1s 0 0 552.60140 0 81 568.00000 552.60140 2.71% - 1s 0 0 552.60475 0 83 568.00000 552.60475 2.71% - 1s 0 0 552.62571 0 76 568.00000 552.62571 2.71% - 1s 0 0 552.63015 0 81 568.00000 552.63015 2.71% - 1s 0 0 552.65452 0 77 568.00000 552.65452 2.70% - 1s 0 0 552.65858 0 81 568.00000 552.65858 2.70% - 1s 0 0 552.68736 0 80 568.00000 552.68736 2.70% - 1s 0 0 552.71832 0 74 568.00000 552.71832 2.69% - 1s 0 0 552.72384 0 80 568.00000 552.72384 2.69% - 1s 0 0 552.72433 0 81 568.00000 552.72433 2.69% - 1s 0 0 552.72433 0 80 568.00000 552.72433 2.69% - 1s H 0 0 566.0000000 552.72433 2.35% - 1s 0 2 552.72799 0 80 566.00000 552.72799 2.34% - 2s H 462 227 565.0000000 556.53030 1.50% 13.2 2s 962 320 564.00000 24 28 565.00000 556.94444 1.43% 13.7 5s * 1322 248 24 564.0000000 558.15888 1.04% 13.2 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Mod-K: 1 Explored 2976 nodes (34073 simplex iterations) in 7.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (36, 37), (8, 44), (8, 27), (7, 24), (12, 39), (17, 39), (17, 51), (21, 36), (22, 51), (22, 30), (25, 44), (24, 25), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (6, 50), (10, 35), (10, 50), (11, 40), (11, 31), (16, 46), (16, 18), (31, 35)] Optimize a model with 508 rows, 1275 columns and 93758 nonzeros Presolve time: 0.05s Presolved: 508 rows, 1275 columns, 93758 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.66596 0 64 567.00000 551.66596 2.70% - 0s 0 0 551.66596 0 57 567.00000 551.66596 2.70% - 0s 0 0 551.79000 0 64 567.00000 551.79000 2.68% - 0s 0 0 551.92308 0 62 567.00000 551.92308 2.66% - 0s 0 0 551.92703 0 69 567.00000 551.92703 2.66% - 0s 0 0 552.02420 0 68 567.00000 552.02420 2.64% - 0s 0 0 552.05265 0 73 567.00000 552.05265 2.64% - 0s 0 0 552.07294 0 75 567.00000 552.07294 2.63% - 0s 0 0 552.08541 0 76 567.00000 552.08541 2.63% - 0s 0 0 552.08543 0 77 567.00000 552.08543 2.63% - 0s 0 0 552.08543 0 76 567.00000 552.08543 2.63% - 0s 0 2 552.08582 0 76 567.00000 552.08582 2.63% - 1s * 242 149 14 566.0000000 554.62871 2.01% 12.8 1s * 460 238 19 565.0000000 555.78335 1.63% 12.4 2s * 947 338 26 564.0000000 556.26829 1.37% 12.5 4s 1627 295 cutoff 33 564.00000 558.00000 1.06% 12.0 5s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Explored 3536 nodes (38544 simplex iterations) in 7.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (15, 26), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (21, 36), (22, 30), (24, 44), (25, 26), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 509 rows, 1275 columns and 94223 nonzeros Presolve time: 0.05s Presolved: 509 rows, 1275 columns, 94223 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 57 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.88326 0 70 566.00000 551.88326 2.49% - 0s 0 0 551.96597 0 66 566.00000 551.96597 2.48% - 0s 0 0 551.97797 0 71 566.00000 551.97797 2.48% - 0s 0 0 552.14099 0 68 566.00000 552.14099 2.45% - 0s 0 0 552.14099 0 73 566.00000 552.14099 2.45% - 0s 0 0 552.21571 0 73 566.00000 552.21571 2.44% - 0s 0 0 552.21571 0 74 566.00000 552.21571 2.44% - 0s 0 0 552.25603 0 75 566.00000 552.25603 2.43% - 0s 0 0 552.26173 0 76 566.00000 552.26173 2.43% - 0s 0 0 552.29458 0 79 566.00000 552.29458 2.42% - 0s 0 0 552.34427 0 76 566.00000 552.34427 2.41% - 0s 0 0 552.35999 0 75 566.00000 552.35999 2.41% - 0s 0 0 552.42654 0 73 566.00000 552.42654 2.40% - 0s 0 0 552.43038 0 76 566.00000 552.43038 2.40% - 0s 0 0 552.48145 0 72 566.00000 552.48145 2.39% - 0s 0 0 552.48920 0 75 566.00000 552.48920 2.39% - 0s 0 0 552.49185 0 77 566.00000 552.49185 2.39% - 0s 0 0 552.49185 0 76 566.00000 552.49185 2.39% - 1s 0 2 552.50163 0 76 566.00000 552.50163 2.38% - 1s * 98 64 24 565.0000000 554.07238 1.93% 12.7 1s H 147 95 564.0000000 555.03254 1.59% 13.5 1s 1605 261 561.49231 20 46 564.00000 558.85789 0.91% 12.1 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 3101 nodes (33741 simplex iterations) in 6.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (39, 50), (9, 23), (9, 27), (10, 50), (10, 22), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(35, 51), (34, 40), (34, 46), (3, 12), (3, 17), (6, 16), (11, 40), (11, 31), (16, 46), (17, 51), (31, 35)] Optimize a model with 511 rows, 1275 columns and 94394 nonzeros Presolve time: 0.05s Presolved: 511 rows, 1275 columns, 94394 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 57 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.88326 0 70 566.00000 551.88326 2.49% - 0s 0 0 551.96597 0 66 566.00000 551.96597 2.48% - 0s 0 0 551.97797 0 71 566.00000 551.97797 2.48% - 0s 0 0 552.14099 0 68 566.00000 552.14099 2.45% - 0s 0 0 552.14099 0 73 566.00000 552.14099 2.45% - 0s 0 0 552.21571 0 73 566.00000 552.21571 2.44% - 0s 0 0 552.21571 0 74 566.00000 552.21571 2.44% - 0s 0 0 552.25603 0 75 566.00000 552.25603 2.43% - 0s 0 0 552.26173 0 76 566.00000 552.26173 2.43% - 0s 0 0 552.29458 0 79 566.00000 552.29458 2.42% - 0s 0 0 552.34427 0 76 566.00000 552.34427 2.41% - 0s 0 0 552.35999 0 75 566.00000 552.35999 2.41% - 0s 0 0 552.42654 0 73 566.00000 552.42654 2.40% - 0s 0 0 552.43038 0 76 566.00000 552.43038 2.40% - 0s 0 0 552.48145 0 72 566.00000 552.48145 2.39% - 0s 0 0 552.48920 0 75 566.00000 552.48920 2.39% - 0s 0 0 552.49185 0 77 566.00000 552.49185 2.39% - 0s 0 0 552.49185 0 76 566.00000 552.49185 2.39% - 1s 0 2 552.50163 0 76 566.00000 552.50163 2.38% - 1s * 364 182 18 565.0000000 555.61111 1.66% 13.1 2s 1479 324 562.21429 26 46 565.00000 557.71831 1.29% 12.7 5s * 2722 496 26 564.0000000 559.12500 0.86% 11.4 6s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 4488 nodes (48132 simplex iterations) in 8.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (5, 19), (5, 18), (35, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (17, 22), (18, 45), (22, 30), (31, 35)] adding cut for [(38, 43), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] Optimize a model with 513 rows, 1275 columns and 94596 nonzeros Presolve time: 0.05s Presolved: 513 rows, 1275 columns, 94596 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 57 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.88326 0 70 566.00000 551.88326 2.49% - 0s 0 0 551.96597 0 66 566.00000 551.96597 2.48% - 0s 0 0 551.97797 0 71 566.00000 551.97797 2.48% - 0s 0 0 552.14099 0 68 566.00000 552.14099 2.45% - 0s 0 0 552.14099 0 73 566.00000 552.14099 2.45% - 0s 0 0 552.21571 0 73 566.00000 552.21571 2.44% - 0s 0 0 552.21571 0 74 566.00000 552.21571 2.44% - 0s 0 0 552.25603 0 75 566.00000 552.25603 2.43% - 0s 0 0 552.26173 0 76 566.00000 552.26173 2.43% - 0s 0 0 552.29458 0 79 566.00000 552.29458 2.42% - 0s 0 0 552.34427 0 76 566.00000 552.34427 2.41% - 0s 0 0 552.35999 0 75 566.00000 552.35999 2.41% - 0s 0 0 552.42654 0 73 566.00000 552.42654 2.40% - 0s 0 0 552.43038 0 76 566.00000 552.43038 2.40% - 0s 0 0 552.48145 0 72 566.00000 552.48145 2.39% - 0s 0 0 552.48920 0 75 566.00000 552.48920 2.39% - 0s 0 0 552.49185 0 77 566.00000 552.49185 2.39% - 0s 0 0 552.49185 0 76 566.00000 552.49185 2.39% - 1s 0 2 552.50163 0 76 566.00000 552.50163 2.38% - 1s * 105 72 24 565.0000000 554.04914 1.94% 13.2 1s * 213 128 13 564.0000000 554.93280 1.61% 13.8 2s 1425 365 559.54460 29 65 564.00000 557.46856 1.16% 12.9 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 4272 nodes (48674 simplex iterations) in 8.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (36, 37), (8, 24), (8, 27), (12, 39), (15, 26), (17, 39), (17, 22), (21, 36), (22, 30), (25, 44), (25, 26), (24, 44), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (35, 51), (38, 45), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (18, 38), (31, 35)] Optimize a model with 515 rows, 1275 columns and 94858 nonzeros Presolve time: 0.05s Presolved: 515 rows, 1275 columns, 94858 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.66596 0 64 568.00000 551.66596 2.88% - 0s 0 0 551.66596 0 57 568.00000 551.66596 2.88% - 0s 0 0 551.79000 0 64 568.00000 551.79000 2.85% - 0s 0 0 551.92308 0 62 568.00000 551.92308 2.83% - 0s 0 0 551.92703 0 69 568.00000 551.92703 2.83% - 0s 0 0 552.02420 0 68 568.00000 552.02420 2.81% - 0s 0 0 552.05265 0 73 568.00000 552.05265 2.81% - 0s 0 0 552.07294 0 75 568.00000 552.07294 2.80% - 0s 0 0 552.08541 0 76 568.00000 552.08541 2.80% - 0s 0 0 552.08543 0 77 568.00000 552.08543 2.80% - 0s 0 0 552.08543 0 76 568.00000 552.08543 2.80% - 1s 0 2 552.08582 0 76 568.00000 552.08582 2.80% - 1s * 56 43 23 566.0000000 553.43315 2.22% 13.8 1s * 328 177 15 565.0000000 555.15612 1.74% 13.3 2s 1439 319 558.93103 21 50 565.00000 557.86957 1.26% 12.8 5s * 2598 386 26 564.0000000 559.93333 0.72% 12.0 6s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 3788 nodes (41746 simplex iterations) in 7.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (14, 26), (14, 42), (15, 25), (15, 26), (20, 41), (20, 43), (21, 23), (21, 36), (25, 44), (29, 32), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 516 rows, 1275 columns and 95089 nonzeros Presolve time: 0.05s Presolved: 516 rows, 1275 columns, 95089 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 580.0000000 550.78715 5.04% - 0s 0 0 551.66596 0 64 580.00000 551.66596 4.89% - 0s 0 0 551.66596 0 57 580.00000 551.66596 4.89% - 0s 0 0 551.67512 0 65 580.00000 551.67512 4.88% - 0s 0 0 551.79248 0 67 580.00000 551.79248 4.86% - 0s 0 0 552.10534 0 68 580.00000 552.10534 4.81% - 0s 0 0 552.13924 0 71 580.00000 552.13924 4.80% - 0s 0 0 552.21738 0 72 580.00000 552.21738 4.79% - 0s 0 0 552.34303 0 71 580.00000 552.34303 4.77% - 0s 0 0 552.34474 0 74 580.00000 552.34474 4.77% - 0s 0 0 552.35732 0 77 580.00000 552.35732 4.77% - 0s 0 0 552.35732 0 80 580.00000 552.35732 4.77% - 1s 0 0 552.36120 0 74 580.00000 552.36120 4.77% - 1s 0 0 552.36120 0 78 580.00000 552.36120 4.77% - 1s 0 0 552.38454 0 74 580.00000 552.38454 4.76% - 1s 0 0 552.39002 0 75 580.00000 552.39002 4.76% - 1s 0 0 552.50589 0 71 580.00000 552.50589 4.74% - 1s 0 0 552.50691 0 75 580.00000 552.50691 4.74% - 1s 0 0 552.55417 0 72 580.00000 552.55417 4.73% - 1s 0 0 552.55435 0 76 580.00000 552.55435 4.73% - 1s 0 0 552.59846 0 73 580.00000 552.59846 4.72% - 1s 0 0 552.60030 0 71 580.00000 552.60030 4.72% - 1s 0 0 552.61034 0 77 580.00000 552.61034 4.72% - 1s 0 0 552.61999 0 73 580.00000 552.61999 4.72% - 1s 0 0 552.61999 0 77 580.00000 552.61999 4.72% - 1s 0 0 552.63587 0 74 580.00000 552.63587 4.72% - 1s 0 0 552.64032 0 84 580.00000 552.64032 4.72% - 1s 0 0 552.64950 0 70 580.00000 552.64950 4.72% - 1s 0 0 552.65001 0 75 580.00000 552.65001 4.72% - 2s 0 0 552.65408 0 77 580.00000 552.65408 4.71% - 2s 0 0 552.65584 0 83 580.00000 552.65584 4.71% - 2s 0 0 552.65592 0 84 580.00000 552.65592 4.71% - 2s 0 0 552.65731 0 80 580.00000 552.65731 4.71% - 2s H 0 0 574.0000000 552.65731 3.72% - 3s 0 2 552.66568 0 80 574.00000 552.66568 3.72% - 3s * 59 50 50 570.0000000 553.71280 2.86% 13.3 3s * 254 168 39 568.0000000 554.74528 2.33% 11.9 4s * 284 167 21 567.0000000 554.79227 2.15% 12.1 4s H 600 313 566.0000000 556.00000 1.77% 11.6 4s 601 314 560.37500 15 64 566.00000 556.00000 1.77% 11.6 5s * 660 319 32 565.0000000 556.00000 1.59% 12.3 7s 2592 602 559.61111 21 53 565.00000 558.97500 1.07% 11.6 10s * 3350 585 23 564.0000000 559.64286 0.77% 11.5 11s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Mod-K: 1 Explored 5067 nodes (54301 simplex iterations) in 13.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (36, 37), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (23, 29), (4, 37), (4, 29), (5, 18), (5, 19), (31, 35)] Optimize a model with 517 rows, 1275 columns and 95279 nonzeros Presolve time: 0.05s Presolved: 517 rows, 1275 columns, 95279 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.66596 0 64 567.00000 551.66596 2.70% - 0s 0 0 551.66596 0 57 567.00000 551.66596 2.70% - 0s 0 0 551.79000 0 64 567.00000 551.79000 2.68% - 0s 0 0 551.92147 0 65 567.00000 551.92147 2.66% - 0s 0 0 551.93348 0 69 567.00000 551.93348 2.66% - 0s 0 0 552.04538 0 71 567.00000 552.04538 2.64% - 0s 0 0 552.12146 0 75 567.00000 552.12146 2.62% - 0s 0 0 552.13542 0 77 567.00000 552.13542 2.62% - 0s 0 0 552.15527 0 75 567.00000 552.15527 2.62% - 0s 0 0 552.18073 0 83 567.00000 552.18073 2.61% - 0s 0 0 552.19505 0 76 567.00000 552.19505 2.61% - 0s 0 0 552.22603 0 75 567.00000 552.22603 2.61% - 0s 0 0 552.22954 0 78 567.00000 552.22954 2.61% - 0s 0 0 552.23457 0 80 567.00000 552.23457 2.60% - 0s 0 0 552.30122 0 81 567.00000 552.30122 2.59% - 0s 0 0 552.33271 0 79 567.00000 552.33271 2.59% - 0s 0 0 552.40385 0 78 567.00000 552.40385 2.57% - 0s 0 0 552.52203 0 67 567.00000 552.52203 2.55% - 0s 0 0 552.52203 0 71 567.00000 552.52203 2.55% - 0s 0 0 552.53275 0 77 567.00000 552.53275 2.55% - 0s 0 0 552.56152 0 79 567.00000 552.56152 2.55% - 0s 0 0 552.56917 0 78 567.00000 552.56917 2.55% - 0s 0 0 552.56991 0 75 567.00000 552.56991 2.54% - 1s 0 0 552.57012 0 78 567.00000 552.57012 2.54% - 1s 0 0 552.57012 0 78 567.00000 552.57012 2.54% - 1s 0 2 552.57364 0 78 567.00000 552.57364 2.54% - 1s * 50 28 45 565.0000000 553.57862 2.02% 9.2 1s 1308 357 560.55556 20 45 565.00000 557.00000 1.42% 12.3 5s 5096 525 561.50000 22 12 565.00000 561.25000 0.66% 11.3 10s * 5112 448 31 564.0000000 561.25000 0.49% 11.3 10s Cutting planes: MIR: 2 Zero half: 14 Mod-K: 1 Explored 5817 nodes (63554 simplex iterations) in 10.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 33), (3, 17), (4, 37), (4, 29), (9, 23), (9, 27), (17, 30), (21, 36), (21, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (6, 16), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 46), (22, 35), (22, 51), (31, 35)] Optimize a model with 519 rows, 1275 columns and 95461 nonzeros Presolve time: 0.05s Presolved: 519 rows, 1275 columns, 95461 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.66596 0 64 566.00000 551.66596 2.53% - 0s 0 0 551.66596 0 57 566.00000 551.66596 2.53% - 0s 0 0 551.67512 0 65 566.00000 551.67512 2.53% - 0s 0 0 551.84659 0 67 566.00000 551.84659 2.50% - 0s 0 0 552.13686 0 71 566.00000 552.13686 2.45% - 0s 0 0 552.15874 0 79 566.00000 552.15874 2.45% - 0s 0 0 552.19134 0 72 566.00000 552.19134 2.44% - 0s 0 0 552.33937 0 66 566.00000 552.33937 2.41% - 0s 0 0 552.35393 0 72 566.00000 552.35393 2.41% - 0s 0 0 552.40008 0 71 566.00000 552.40008 2.40% - 0s 0 0 552.41200 0 72 566.00000 552.41200 2.40% - 0s 0 0 552.41864 0 73 566.00000 552.41864 2.40% - 0s 0 0 552.44965 0 73 566.00000 552.44965 2.39% - 0s 0 0 552.52336 0 72 566.00000 552.52336 2.38% - 0s 0 0 552.52336 0 75 566.00000 552.52336 2.38% - 0s 0 0 552.53245 0 73 566.00000 552.53245 2.38% - 0s 0 0 552.53245 0 76 566.00000 552.53245 2.38% - 0s 0 0 552.53872 0 72 566.00000 552.53872 2.38% - 0s 0 0 552.54062 0 79 566.00000 552.54062 2.38% - 0s 0 0 552.54474 0 76 566.00000 552.54474 2.38% - 0s 0 0 552.54474 0 79 566.00000 552.54474 2.38% - 0s 0 0 552.55294 0 75 566.00000 552.55294 2.38% - 0s 0 0 552.55294 0 75 566.00000 552.55294 2.38% - 1s 0 2 552.57107 0 75 566.00000 552.57107 2.37% - 1s H 596 276 565.0000000 556.37500 1.53% 11.0 2s 1548 357 563.22222 23 36 565.00000 558.15385 1.21% 11.4 5s * 3118 481 24 564.0000000 560.33333 0.65% 10.7 6s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 4290 nodes (42779 simplex iterations) in 8.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.640000000000e+02, best bound 5.640000000000e+02, gap 0.0% adding cut for [(2, 23), (36, 37), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (23, 29), (4, 37), (4, 29), (31, 35)] adding cut for [(8, 24), (8, 27), (9, 32), (9, 49), (15, 26), (24, 44), (25, 44), (25, 26), (27, 32)] Optimize a model with 521 rows, 1275 columns and 95677 nonzeros Presolve time: 0.05s Presolved: 521 rows, 1275 columns, 95677 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67188 0 63 568.00000 551.67188 2.87% - 0s 0 0 551.67188 0 57 568.00000 551.67188 2.87% - 0s 0 0 551.79000 0 64 568.00000 551.79000 2.85% - 0s 0 0 551.91561 0 68 568.00000 551.91561 2.83% - 0s 0 0 552.22229 0 75 568.00000 552.22229 2.78% - 0s 0 0 552.26631 0 78 568.00000 552.26631 2.77% - 0s 0 0 552.34156 0 79 568.00000 552.34156 2.76% - 0s 0 0 552.49559 0 70 568.00000 552.49559 2.73% - 0s 0 0 552.51634 0 78 568.00000 552.51634 2.73% - 0s 0 0 552.71366 0 66 568.00000 552.71366 2.69% - 0s 0 0 552.71366 0 70 568.00000 552.71366 2.69% - 0s 0 0 552.75281 0 71 568.00000 552.75281 2.68% - 0s 0 0 552.75425 0 74 568.00000 552.75425 2.68% - 0s 0 0 552.75832 0 76 568.00000 552.75832 2.68% - 0s 0 0 552.79643 0 74 568.00000 552.79643 2.68% - 0s 0 0 552.81898 0 76 568.00000 552.81898 2.67% - 0s 0 0 552.83673 0 79 568.00000 552.83673 2.67% - 0s 0 0 552.84415 0 77 568.00000 552.84415 2.67% - 0s 0 0 552.84574 0 75 568.00000 552.84574 2.67% - 0s 0 0 552.84646 0 80 568.00000 552.84646 2.67% - 0s 0 0 552.84697 0 80 568.00000 552.84697 2.67% - 1s 0 0 552.84697 0 80 568.00000 552.84697 2.67% - 1s 0 2 552.85123 0 80 568.00000 552.85123 2.67% - 1s H 27 27 567.0000000 553.50000 2.38% 12.7 1s * 82 56 32 565.0000000 553.83333 1.98% 11.3 2s 697 370 556.28125 16 62 565.00000 556.28125 1.54% 13.0 5s 4144 704 cutoff 29 565.00000 560.16667 0.86% 11.5 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 8 Mod-K: 1 Explored 6911 nodes (75585 simplex iterations) in 13.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (10, 31), (10, 50), (11, 40), (11, 50), (16, 38), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 522 rows, 1275 columns and 95930 nonzeros Presolve time: 0.05s Presolved: 522 rows, 1275 columns, 95930 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67188 0 63 566.00000 551.67188 2.53% - 0s 0 0 551.67188 0 57 566.00000 551.67188 2.53% - 0s 0 0 551.67188 0 64 566.00000 551.67188 2.53% - 0s 0 0 551.88582 0 69 566.00000 551.88582 2.49% - 0s 0 0 552.00235 0 73 566.00000 552.00235 2.47% - 0s 0 0 552.19000 0 72 566.00000 552.19000 2.44% - 0s 0 0 552.25597 0 75 566.00000 552.25597 2.43% - 0s 0 0 552.32219 0 72 566.00000 552.32219 2.42% - 0s 0 0 552.42865 0 81 566.00000 552.42865 2.40% - 0s 0 0 552.56502 0 76 566.00000 552.56502 2.37% - 0s 0 0 552.56502 0 77 566.00000 552.56502 2.37% - 0s 0 0 552.63866 0 75 566.00000 552.63866 2.36% - 0s 0 0 552.63866 0 76 566.00000 552.63866 2.36% - 0s 0 0 552.73770 0 70 566.00000 552.73770 2.34% - 0s 0 0 552.73770 0 74 566.00000 552.73770 2.34% - 0s 0 0 552.74086 0 74 566.00000 552.74086 2.34% - 0s 0 0 552.74086 0 78 566.00000 552.74086 2.34% - 0s 0 0 552.75215 0 75 566.00000 552.75215 2.34% - 0s 0 0 552.75963 0 76 566.00000 552.75963 2.34% - 0s 0 0 552.75963 0 80 566.00000 552.75963 2.34% - 0s 0 0 552.76676 0 77 566.00000 552.76676 2.34% - 1s 0 0 552.76717 0 81 566.00000 552.76717 2.34% - 1s 0 0 552.80131 0 71 566.00000 552.80131 2.33% - 1s 0 0 552.80409 0 77 566.00000 552.80409 2.33% - 1s 0 0 552.80591 0 78 566.00000 552.80591 2.33% - 1s 0 0 552.81081 0 79 566.00000 552.81081 2.33% - 1s 0 0 552.82353 0 72 566.00000 552.82353 2.33% - 1s 0 0 552.82353 0 76 566.00000 552.82353 2.33% - 1s 0 0 552.83944 0 77 566.00000 552.83944 2.33% - 1s 0 0 552.83944 0 81 566.00000 552.83944 2.33% - 1s 0 0 552.84390 0 78 566.00000 552.84390 2.32% - 1s 0 0 552.84390 0 82 566.00000 552.84390 2.32% - 1s 0 0 552.84943 0 78 566.00000 552.84943 2.32% - 1s 0 0 552.85166 0 83 566.00000 552.85166 2.32% - 1s 0 0 552.85756 0 77 566.00000 552.85756 2.32% - 1s 0 0 552.85850 0 75 566.00000 552.85850 2.32% - 1s 0 0 552.85859 0 82 566.00000 552.85859 2.32% - 1s 0 0 552.86070 0 81 566.00000 552.86070 2.32% - 1s 0 0 552.86125 0 83 566.00000 552.86125 2.32% - 1s 0 0 552.86125 0 84 566.00000 552.86125 2.32% - 1s 0 0 552.86125 0 84 566.00000 552.86125 2.32% - 2s 0 2 552.86951 0 84 566.00000 552.86951 2.32% - 2s 618 313 556.76667 11 86 566.00000 555.86260 1.79% 11.1 5s * 1213 402 30 565.0000000 557.00000 1.42% 11.7 6s 4169 602 560.36000 26 60 565.00000 560.36000 0.82% 10.8 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 11 Explored 6540 nodes (66905 simplex iterations) in 12.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (10, 31), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 523 rows, 1275 columns and 96161 nonzeros Presolve time: 0.05s Presolved: 523 rows, 1275 columns, 96161 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67188 0 63 566.00000 551.67188 2.53% - 0s 0 0 551.67188 0 57 566.00000 551.67188 2.53% - 0s 0 0 551.67512 0 65 566.00000 551.67512 2.53% - 0s 0 0 551.82945 0 69 566.00000 551.82945 2.50% - 0s 0 0 552.14942 0 73 566.00000 552.14942 2.45% - 0s 0 0 552.21738 0 70 566.00000 552.21738 2.44% - 0s 0 0 552.24229 0 72 566.00000 552.24229 2.43% - 0s 0 0 552.30589 0 71 566.00000 552.30589 2.42% - 0s 0 0 552.34765 0 83 566.00000 552.34765 2.41% - 0s 0 0 552.49069 0 76 566.00000 552.49069 2.39% - 0s 0 0 552.49069 0 77 566.00000 552.49069 2.39% - 0s 0 0 552.49474 0 75 566.00000 552.49474 2.39% - 0s 0 0 552.49474 0 76 566.00000 552.49474 2.39% - 0s 0 0 552.49586 0 78 566.00000 552.49586 2.39% - 0s 0 0 552.49586 0 78 566.00000 552.49586 2.39% - 0s 0 0 552.49586 0 78 566.00000 552.49586 2.39% - 1s 0 2 552.50457 0 78 566.00000 552.50457 2.38% - 1s * 218 122 19 565.0000000 555.56250 1.67% 13.0 1s 1471 292 563.00000 21 13 565.00000 558.66667 1.12% 12.2 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 4350 nodes (45902 simplex iterations) in 8.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(6, 50), (7, 24), (8, 24), (8, 44), (10, 50), (10, 51), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (20, 41), (20, 42), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (35, 51), (38, 45), (41, 43), (43, 45)] Optimize a model with 524 rows, 1275 columns and 96437 nonzeros Presolve time: 0.05s Presolved: 524 rows, 1275 columns, 96437 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67188 0 63 566.00000 551.67188 2.53% - 0s 0 0 551.67188 0 57 566.00000 551.67188 2.53% - 0s 0 0 551.67512 0 65 566.00000 551.67512 2.53% - 0s 0 0 551.82945 0 69 566.00000 551.82945 2.50% - 0s 0 0 552.14942 0 73 566.00000 552.14942 2.45% - 0s 0 0 552.21738 0 70 566.00000 552.21738 2.44% - 0s 0 0 552.24229 0 72 566.00000 552.24229 2.43% - 0s 0 0 552.30589 0 71 566.00000 552.30589 2.42% - 0s 0 0 552.34765 0 83 566.00000 552.34765 2.41% - 0s 0 0 552.49069 0 76 566.00000 552.49069 2.39% - 0s 0 0 552.49069 0 77 566.00000 552.49069 2.39% - 0s 0 0 552.49474 0 75 566.00000 552.49474 2.39% - 0s 0 0 552.49474 0 76 566.00000 552.49474 2.39% - 0s 0 0 552.49586 0 78 566.00000 552.49586 2.39% - 0s 0 0 552.49586 0 79 566.00000 552.49586 2.39% - 0s 0 2 552.50457 0 78 566.00000 552.50457 2.38% - 1s * 191 104 24 565.0000000 555.31429 1.71% 13.2 1s 1631 284 561.33333 26 48 565.00000 558.63937 1.13% 12.6 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 4457 nodes (46524 simplex iterations) in 8.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (5, 14), (41, 43), (10, 50), (10, 31), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (35, 51), (20, 41), (20, 42), (14, 42), (43, 45), (31, 35)] adding cut for [(36, 37), (9, 49), (9, 27), (7, 49), (12, 39), (21, 36), (21, 30), (22, 39), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 526 rows, 1275 columns and 96738 nonzeros Presolve time: 0.05s Presolved: 526 rows, 1275 columns, 96738 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 147 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67188 0 63 568.00000 551.67188 2.87% - 0s 0 0 551.67188 0 57 568.00000 551.67188 2.87% - 0s 0 0 551.79000 0 64 568.00000 551.79000 2.85% - 0s 0 0 551.91561 0 68 568.00000 551.91561 2.83% - 0s 0 0 552.22229 0 75 568.00000 552.22229 2.78% - 0s 0 0 552.26631 0 78 568.00000 552.26631 2.77% - 0s 0 0 552.34156 0 79 568.00000 552.34156 2.76% - 0s 0 0 552.49559 0 70 568.00000 552.49559 2.73% - 0s 0 0 552.51634 0 78 568.00000 552.51634 2.73% - 0s 0 0 552.71366 0 66 568.00000 552.71366 2.69% - 0s 0 0 552.71366 0 70 568.00000 552.71366 2.69% - 0s 0 0 552.75503 0 68 568.00000 552.75503 2.68% - 0s 0 0 552.75781 0 76 568.00000 552.75781 2.68% - 0s 0 0 552.76577 0 75 568.00000 552.76577 2.68% - 0s 0 0 552.78307 0 78 568.00000 552.78307 2.68% - 0s 0 0 552.78434 0 78 568.00000 552.78434 2.68% - 0s 0 0 552.79034 0 77 568.00000 552.79034 2.68% - 0s 0 0 552.82492 0 76 568.00000 552.82492 2.67% - 0s 0 0 552.82528 0 79 568.00000 552.82528 2.67% - 0s 0 0 552.86443 0 70 568.00000 552.86443 2.66% - 0s H 0 0 566.0000000 552.86443 2.32% - 1s 0 0 552.87441 0 79 566.00000 552.87441 2.32% - 1s 0 0 552.87884 0 75 566.00000 552.87884 2.32% - 1s 0 0 552.87935 0 79 566.00000 552.87935 2.32% - 1s 0 0 552.88078 0 76 566.00000 552.88078 2.32% - 1s 0 0 552.88093 0 80 566.00000 552.88093 2.32% - 1s 0 0 552.88668 0 77 566.00000 552.88668 2.32% - 1s 0 0 552.88810 0 80 566.00000 552.88810 2.32% - 1s 0 0 552.89147 0 82 566.00000 552.89147 2.32% - 1s 0 0 552.89166 0 85 566.00000 552.89166 2.32% - 1s 0 0 552.89166 0 85 566.00000 552.89166 2.32% - 1s 0 2 552.91267 0 85 566.00000 552.91267 2.31% - 2s * 200 125 10 565.0000000 554.62500 1.84% 13.2 2s 637 327 560.02381 27 54 565.00000 556.54870 1.50% 13.5 5s 4706 285 cutoff 31 565.00000 562.18750 0.50% 10.5 10s Cutting planes: Gomory: 5 MIR: 2 Zero half: 8 Explored 5307 nodes (54229 simplex iterations) in 10.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 23), (4, 37), (6, 50), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 50), (11, 31), (11, 40), (12, 39), (14, 26), (14, 42), (16, 45), (16, 46), (17, 39), (17, 51), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (23, 29), (24, 44), (25, 26), (25, 44), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 527 rows, 1275 columns and 97404 nonzeros Presolve time: 0.05s Presolved: 527 rows, 1275 columns, 97404 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 150 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67597 0 64 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 57 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 65 566.00000 551.67597 2.53% - 0s 0 0 551.88181 0 69 566.00000 551.88181 2.49% - 0s 0 0 552.03299 0 74 566.00000 552.03299 2.47% - 0s 0 0 552.21568 0 71 566.00000 552.21568 2.44% - 0s 0 0 552.23870 0 75 566.00000 552.23870 2.43% - 0s 0 0 552.30212 0 74 566.00000 552.30212 2.42% - 0s 0 0 552.31792 0 78 566.00000 552.31792 2.42% - 0s 0 0 552.44502 0 70 566.00000 552.44502 2.39% - 0s 0 0 552.44502 0 74 566.00000 552.44502 2.39% - 0s 0 0 552.57551 0 74 566.00000 552.57551 2.37% - 0s 0 0 552.57551 0 78 566.00000 552.57551 2.37% - 0s 0 0 552.60987 0 72 566.00000 552.60987 2.37% - 0s 0 0 552.61284 0 76 566.00000 552.61284 2.37% - 0s 0 0 552.65499 0 72 566.00000 552.65499 2.36% - 0s 0 0 552.67469 0 84 566.00000 552.67469 2.35% - 0s 0 0 552.69145 0 77 566.00000 552.69145 2.35% - 0s 0 0 552.70130 0 73 566.00000 552.70130 2.35% - 0s 0 0 552.71819 0 80 566.00000 552.71819 2.35% - 0s 0 0 552.73963 0 81 566.00000 552.73963 2.34% - 0s 0 0 552.77505 0 76 566.00000 552.77505 2.34% - 0s 0 0 552.79134 0 81 566.00000 552.79134 2.33% - 0s 0 0 552.79302 0 83 566.00000 552.79302 2.33% - 0s 0 0 552.80240 0 78 566.00000 552.80240 2.33% - 1s 0 0 552.82072 0 82 566.00000 552.82072 2.33% - 1s 0 0 552.83402 0 84 566.00000 552.83402 2.33% - 1s 0 0 552.88606 0 73 566.00000 552.88606 2.32% - 1s 0 0 552.89089 0 78 566.00000 552.89089 2.32% - 1s 0 0 552.89116 0 76 566.00000 552.89116 2.32% - 1s 0 0 552.89116 0 80 566.00000 552.89116 2.32% - 1s 0 0 552.89389 0 79 566.00000 552.89389 2.32% - 1s 0 0 552.89428 0 81 566.00000 552.89428 2.32% - 1s 0 0 552.90869 0 72 566.00000 552.90869 2.31% - 1s 0 0 552.90912 0 74 566.00000 552.90912 2.31% - 1s 0 0 552.90912 0 75 566.00000 552.90912 2.31% - 1s 0 0 552.90912 0 76 566.00000 552.90912 2.31% - 1s 0 0 552.90912 0 75 566.00000 552.90912 2.31% - 1s 0 2 552.99467 0 75 566.00000 552.99467 2.30% - 1s 618 301 557.00000 16 66 566.00000 557.00000 1.59% 13.0 5s H 644 296 565.0000000 557.00000 1.42% 13.3 5s 3971 572 561.66667 27 51 565.00000 560.72727 0.76% 11.2 10s Cutting planes: Gomory: 9 MIR: 2 Zero half: 11 Explored 6338 nodes (65534 simplex iterations) in 12.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 46), (9, 27), (11, 40), (11, 31), (18, 38), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 18), (5, 19), (29, 32), (31, 35)] adding cut for [(6, 16), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (16, 45), (20, 41), (20, 42)] Optimize a model with 529 rows, 1275 columns and 97639 nonzeros Presolve time: 0.05s Presolved: 529 rows, 1275 columns, 97639 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 150 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start 0 0 551.67597 0 65 1672.00000 551.67597 67.0% - 0s 0 0 551.89255 0 70 1672.00000 551.89255 67.0% - 0s 0 0 552.03097 0 74 1672.00000 552.03097 67.0% - 0s 0 0 552.16195 0 79 1672.00000 552.16195 67.0% - 0s 0 0 552.16195 0 80 1672.00000 552.16195 67.0% - 0s 0 0 552.35114 0 75 1672.00000 552.35114 67.0% - 0s H 0 0 729.0000000 552.35114 24.2% - 0s H 0 0 584.0000000 552.35114 5.42% - 0s H 0 0 580.0000000 552.35114 4.77% - 0s 0 0 552.36578 0 78 580.00000 552.36578 4.76% - 0s 0 0 552.36578 0 57 580.00000 552.36578 4.76% - 1s 0 0 552.42428 0 76 580.00000 552.42428 4.75% - 1s 0 0 552.47885 0 72 580.00000 552.47885 4.75% - 1s 0 0 552.47885 0 75 580.00000 552.47885 4.75% - 1s 0 0 552.55781 0 79 580.00000 552.55781 4.73% - 1s 0 0 552.70946 0 77 580.00000 552.70946 4.71% - 1s 0 0 552.79452 0 71 580.00000 552.79452 4.69% - 1s 0 0 552.79631 0 73 580.00000 552.79631 4.69% - 1s 0 0 552.81592 0 78 580.00000 552.81592 4.69% - 1s 0 0 552.84375 0 73 580.00000 552.84375 4.68% - 1s 0 0 552.84375 0 76 580.00000 552.84375 4.68% - 1s 0 0 552.85636 0 75 580.00000 552.85636 4.68% - 1s 0 0 552.85787 0 82 580.00000 552.85787 4.68% - 1s 0 0 552.86349 0 80 580.00000 552.86349 4.68% - 1s 0 0 552.86349 0 83 580.00000 552.86349 4.68% - 1s 0 0 552.87800 0 79 580.00000 552.87800 4.68% - 2s 0 0 552.87811 0 82 580.00000 552.87811 4.68% - 2s 0 0 552.89486 0 82 580.00000 552.89486 4.67% - 2s 0 0 552.89486 0 85 580.00000 552.89486 4.67% - 2s 0 0 552.90116 0 83 580.00000 552.90116 4.67% - 2s 0 0 552.90610 0 86 580.00000 552.90610 4.67% - 2s 0 0 552.93561 0 82 580.00000 552.93561 4.67% - 2s 0 0 552.93629 0 86 580.00000 552.93629 4.67% - 2s 0 0 552.94204 0 87 580.00000 552.94204 4.67% - 2s 0 0 552.95128 0 85 580.00000 552.95128 4.66% - 2s 0 0 552.95913 0 89 580.00000 552.95913 4.66% - 2s 0 0 552.95913 0 89 580.00000 552.95913 4.66% - 3s H 0 0 567.0000000 552.95913 2.48% - 3s 0 2 552.96399 0 89 567.00000 552.96399 2.48% - 3s H 220 125 566.0000000 554.79167 1.98% 11.0 4s * 360 173 14 565.0000000 555.40000 1.70% 11.2 4s 601 275 558.00000 8 78 565.00000 556.84000 1.44% 11.9 5s 2651 433 561.45000 21 51 565.00000 559.68750 0.94% 11.7 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 10 Explored 4929 nodes (52765 simplex iterations) in 12.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 23), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (23, 29), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 530 rows, 1275 columns and 98135 nonzeros Presolve time: 0.05s Presolved: 530 rows, 1275 columns, 98135 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.78715 3.37% - 0s 0 0 551.67597 0 64 570.00000 551.67597 3.21% - 0s 0 0 551.67597 0 57 570.00000 551.67597 3.21% - 0s 0 0 551.80390 0 66 570.00000 551.80390 3.19% - 0s 0 0 551.92502 0 64 570.00000 551.92502 3.17% - 0s 0 0 551.94517 0 70 570.00000 551.94517 3.17% - 0s 0 0 552.07601 0 74 570.00000 552.07601 3.14% - 0s 0 0 552.12273 0 74 570.00000 552.12273 3.14% - 0s 0 0 552.18978 0 79 570.00000 552.18978 3.12% - 0s 0 0 552.36436 0 76 570.00000 552.36436 3.09% - 0s 0 0 552.45153 0 77 570.00000 552.45153 3.08% - 0s 0 0 552.49436 0 73 570.00000 552.49436 3.07% - 0s 0 0 552.61239 0 78 570.00000 552.61239 3.05% - 0s 0 0 552.76886 0 69 570.00000 552.76886 3.02% - 0s 0 0 552.77203 0 82 570.00000 552.77203 3.02% - 0s 0 0 552.83099 0 69 570.00000 552.83099 3.01% - 0s 0 0 552.83119 0 74 570.00000 552.83119 3.01% - 0s 0 0 552.84110 0 77 570.00000 552.84110 3.01% - 0s 0 0 552.84622 0 79 570.00000 552.84622 3.01% - 0s 0 0 552.85484 0 74 570.00000 552.85484 3.01% - 0s 0 0 552.85484 0 78 570.00000 552.85484 3.01% - 0s 0 0 552.85726 0 80 570.00000 552.85726 3.01% - 1s 0 0 552.85726 0 83 570.00000 552.85726 3.01% - 1s H 0 0 569.0000000 552.85726 2.84% - 1s 0 2 552.85781 0 83 569.00000 552.85781 2.84% - 1s * 203 116 30 565.0000000 554.67485 1.83% 12.8 2s 622 301 558.96296 14 85 565.00000 556.27778 1.54% 11.7 5s 3606 662 562.53333 18 63 565.00000 559.30769 1.01% 12.0 10s Cutting planes: Gomory: 3 MIR: 4 Zero half: 11 Explored 7512 nodes (83300 simplex iterations) in 14.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 48), (9, 27), (9, 49), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 40), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 531 rows, 1275 columns and 98435 nonzeros Presolve time: 0.05s Presolved: 531 rows, 1275 columns, 98435 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 153 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.78715 3.20% - 0s 0 0 551.67597 0 64 569.00000 551.67597 3.04% - 0s 0 0 551.67597 0 57 569.00000 551.67597 3.04% - 0s 0 0 551.80390 0 66 569.00000 551.80390 3.02% - 0s 0 0 551.92502 0 65 569.00000 551.92502 3.00% - 0s 0 0 551.94517 0 70 569.00000 551.94517 3.00% - 0s 0 0 552.09638 0 76 569.00000 552.09638 2.97% - 0s 0 0 552.23126 0 82 569.00000 552.23126 2.95% - 0s 0 0 552.30503 0 79 569.00000 552.30503 2.93% - 0s 0 0 552.34258 0 81 569.00000 552.34258 2.93% - 0s 0 0 552.46059 0 73 569.00000 552.46059 2.91% - 0s 0 0 552.65751 0 85 569.00000 552.65751 2.87% - 0s 0 0 552.81302 0 68 569.00000 552.81302 2.84% - 0s 0 0 552.81547 0 70 569.00000 552.81547 2.84% - 0s 0 0 552.81671 0 78 569.00000 552.81671 2.84% - 0s 0 0 552.86224 0 71 569.00000 552.86224 2.84% - 0s 0 0 552.86505 0 75 569.00000 552.86505 2.84% - 0s 0 0 552.86841 0 73 569.00000 552.86841 2.84% - 0s 0 0 552.86841 0 76 569.00000 552.86841 2.84% - 0s 0 0 552.87057 0 75 569.00000 552.87057 2.83% - 1s H 0 0 566.0000000 552.87057 2.32% - 1s 0 0 552.87057 0 79 566.00000 552.87057 2.32% - 1s 0 2 553.04631 0 79 566.00000 553.04631 2.29% - 1s * 478 249 31 565.0000000 556.00000 1.59% 13.0 4s 1010 440 558.10730 18 63 565.00000 557.44444 1.34% 11.9 5s 4568 774 563.38636 27 51 565.00000 560.40000 0.81% 11.4 10s Cutting planes: Gomory: 10 MIR: 7 Zero half: 19 Explored 7506 nodes (79861 simplex iterations) in 13.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(36, 37), (6, 39), (39, 50), (9, 49), (9, 27), (10, 50), (10, 22), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(2, 23), (3, 17), (3, 23), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (35, 51), (31, 35)] adding cut for [(5, 48), (5, 18), (41, 43), (14, 42), (14, 26), (18, 43), (19, 26), (20, 41), (20, 42)] Optimize a model with 534 rows, 1275 columns and 98676 nonzeros Presolve time: 0.05s Presolved: 534 rows, 1275 columns, 98676 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 153 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.78715 3.20% - 0s 0 0 551.67597 0 64 569.00000 551.67597 3.04% - 0s 0 0 551.67597 0 57 569.00000 551.67597 3.04% - 0s 0 0 551.80390 0 66 569.00000 551.80390 3.02% - 0s 0 0 551.92502 0 65 569.00000 551.92502 3.00% - 0s 0 0 551.94517 0 70 569.00000 551.94517 3.00% - 0s 0 0 552.09638 0 76 569.00000 552.09638 2.97% - 0s 0 0 552.23126 0 82 569.00000 552.23126 2.95% - 0s 0 0 552.30503 0 79 569.00000 552.30503 2.93% - 0s 0 0 552.34258 0 81 569.00000 552.34258 2.93% - 0s 0 0 552.46059 0 73 569.00000 552.46059 2.91% - 0s 0 0 552.65751 0 85 569.00000 552.65751 2.87% - 0s 0 0 552.81302 0 68 569.00000 552.81302 2.84% - 0s 0 0 552.81547 0 70 569.00000 552.81547 2.84% - 0s 0 0 552.81671 0 78 569.00000 552.81671 2.84% - 0s 0 0 552.86224 0 71 569.00000 552.86224 2.84% - 0s 0 0 552.86505 0 75 569.00000 552.86505 2.84% - 0s 0 0 552.86841 0 73 569.00000 552.86841 2.84% - 0s 0 0 552.86841 0 76 569.00000 552.86841 2.84% - 0s 0 0 552.87057 0 75 569.00000 552.87057 2.83% - 1s 0 0 552.87057 0 79 569.00000 552.87057 2.83% - 1s H 0 0 567.0000000 552.87057 2.49% - 1s 0 2 552.88040 0 79 567.00000 552.88040 2.49% - 1s H 116 79 566.0000000 554.45217 2.04% 11.2 2s * 526 262 21 565.0000000 555.80966 1.63% 11.8 2s 786 371 558.79545 30 56 565.00000 556.17752 1.56% 12.2 5s 4541 465 562.13333 38 42 565.00000 561.33333 0.65% 10.5 10s Cutting planes: Gomory: 4 MIR: 3 Zero half: 10 Explored 5739 nodes (57785 simplex iterations) in 11.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (43, 45), (18, 38), (18, 43), (31, 35)] adding cut for [(5, 19), (5, 20), (7, 24), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (25, 44)] Optimize a model with 536 rows, 1275 columns and 98859 nonzeros Presolve time: 0.05s Presolved: 536 rows, 1275 columns, 98859 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 153 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67597 0 64 568.00000 551.67597 2.87% - 0s 0 0 551.67597 0 57 568.00000 551.67597 2.87% - 0s 0 0 551.80390 0 66 568.00000 551.80390 2.85% - 0s 0 0 551.92502 0 64 568.00000 551.92502 2.83% - 0s 0 0 551.94517 0 70 568.00000 551.94517 2.83% - 0s 0 0 552.09800 0 75 568.00000 552.09800 2.80% - 0s 0 0 552.21336 0 76 568.00000 552.21336 2.78% - 0s 0 0 552.30165 0 84 568.00000 552.30165 2.76% - 0s 0 0 552.42213 0 78 568.00000 552.42213 2.74% - 0s 0 0 552.48242 0 76 568.00000 552.48242 2.73% - 0s 0 0 552.56514 0 79 568.00000 552.56514 2.72% - 0s 0 0 552.74354 0 77 568.00000 552.74354 2.69% - 0s 0 0 552.74609 0 83 568.00000 552.74609 2.69% - 0s 0 0 552.80077 0 61 568.00000 552.80077 2.68% - 0s 0 0 552.81818 0 68 568.00000 552.81818 2.67% - 0s 0 0 552.82371 0 79 568.00000 552.82371 2.67% - 0s 0 0 552.87012 0 72 568.00000 552.87012 2.66% - 0s 0 0 552.87192 0 81 568.00000 552.87192 2.66% - 0s 0 0 552.87312 0 85 568.00000 552.87312 2.66% - 0s 0 0 552.89574 0 76 568.00000 552.89574 2.66% - 0s 0 0 552.89713 0 77 568.00000 552.89713 2.66% - 1s 0 0 552.90585 0 76 568.00000 552.90585 2.66% - 1s 0 0 552.91463 0 81 568.00000 552.91463 2.66% - 1s 0 0 552.91773 0 83 568.00000 552.91773 2.66% - 1s 0 0 552.92285 0 83 568.00000 552.92285 2.65% - 1s 0 0 552.92831 0 81 568.00000 552.92831 2.65% - 1s 0 0 552.92975 0 86 568.00000 552.92975 2.65% - 1s 0 0 552.93007 0 87 568.00000 552.93007 2.65% - 1s 0 0 552.93285 0 80 568.00000 552.93285 2.65% - 1s 0 0 552.93338 0 86 568.00000 552.93338 2.65% - 1s 0 0 552.93338 0 86 568.00000 552.93338 2.65% - 1s 0 2 552.93933 0 86 568.00000 552.93933 2.65% - 2s * 40 33 34 567.0000000 554.09196 2.28% 14.9 2s * 402 207 11 565.0000000 556.00000 1.59% 12.8 2s 618 280 556.90984 11 82 565.00000 556.90984 1.43% 13.3 5s 4126 355 cutoff 22 565.00000 561.73810 0.58% 11.2 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 11 Mod-K: 1 Explored 4983 nodes (53301 simplex iterations) in 10.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 17), (36, 37), (8, 24), (8, 27), (15, 25), (15, 26), (17, 22), (19, 26), (21, 36), (21, 30), (22, 30), (25, 44), (24, 44), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (35, 51), (6, 39), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 38), (16, 46), (31, 35)] Optimize a model with 538 rows, 1275 columns and 99108 nonzeros Presolve time: 0.05s Presolved: 538 rows, 1275 columns, 99108 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67597 0 64 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 57 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 65 566.00000 551.67597 2.53% - 0s 0 0 551.89255 0 70 566.00000 551.89255 2.49% - 0s 0 0 552.06961 0 74 566.00000 552.06961 2.46% - 0s 0 0 552.20044 0 69 566.00000 552.20044 2.44% - 0s 0 0 552.20451 0 73 566.00000 552.20451 2.44% - 0s 0 0 552.33089 0 74 566.00000 552.33089 2.42% - 0s 0 0 552.33089 0 75 566.00000 552.33089 2.42% - 0s 0 0 552.40097 0 76 566.00000 552.40097 2.40% - 0s 0 0 552.40355 0 78 566.00000 552.40355 2.40% - 0s 0 0 552.44179 0 68 566.00000 552.44179 2.40% - 0s 0 0 552.44179 0 72 566.00000 552.44179 2.40% - 0s 0 0 552.44704 0 79 566.00000 552.44704 2.39% - 0s 0 0 552.59867 0 77 566.00000 552.59867 2.37% - 0s 0 0 552.62757 0 80 566.00000 552.62757 2.36% - 0s 0 0 552.65385 0 81 566.00000 552.65385 2.36% - 0s 0 0 552.67578 0 79 566.00000 552.67578 2.35% - 0s 0 0 552.68208 0 84 566.00000 552.68208 2.35% - 0s 0 0 552.69900 0 82 566.00000 552.69900 2.35% - 0s 0 0 552.72699 0 73 566.00000 552.72699 2.35% - 0s 0 0 552.72818 0 81 566.00000 552.72818 2.34% - 0s 0 0 552.72818 0 81 566.00000 552.72818 2.34% - 1s 0 2 552.73775 0 81 566.00000 552.73775 2.34% - 1s H 70 39 565.0000000 554.52666 1.85% 15.5 1s 725 351 561.57143 26 30 565.00000 556.39535 1.52% 13.2 5s 4590 322 563.16667 23 25 565.00000 562.00000 0.53% 11.0 10s Cutting planes: Gomory: 8 MIR: 2 Zero half: 8 Explored 5252 nodes (55748 simplex iterations) in 10.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (6, 50), (41, 42), (43, 45), (14, 42), (16, 45), (16, 46), (35, 51), (20, 41), (20, 43), (10, 51), (10, 50), (31, 35)] adding cut for [(2, 23), (4, 37), (4, 29), (8, 24), (8, 27), (9, 32), (9, 27), (15, 25), (15, 26), (19, 26), (25, 44), (21, 23), (21, 36), (24, 44), (36, 37), (29, 32)] Optimize a model with 540 rows, 1275 columns and 99397 nonzeros Presolve time: 0.05s Presolved: 540 rows, 1275 columns, 99397 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 576.0000000 550.78715 4.38% - 0s 0 0 551.67597 0 64 576.00000 551.67597 4.22% - 0s 0 0 551.67597 0 57 576.00000 551.67597 4.22% - 0s 0 0 551.80390 0 66 576.00000 551.80390 4.20% - 0s 0 0 551.92502 0 65 576.00000 551.92502 4.18% - 0s 0 0 551.94517 0 70 576.00000 551.94517 4.18% - 0s 0 0 552.08895 0 76 576.00000 552.08895 4.15% - 0s 0 0 552.21391 0 82 576.00000 552.21391 4.13% - 0s 0 0 552.26488 0 81 576.00000 552.26488 4.12% - 0s 0 0 552.36756 0 83 576.00000 552.36756 4.10% - 0s 0 0 552.55085 0 77 576.00000 552.55085 4.07% - 0s 0 0 552.55656 0 81 576.00000 552.55656 4.07% - 0s 0 0 552.62095 0 76 576.00000 552.62095 4.06% - 1s 0 0 552.62095 0 80 576.00000 552.62095 4.06% - 1s 0 0 552.67195 0 78 576.00000 552.67195 4.05% - 1s 0 0 552.67691 0 83 576.00000 552.67691 4.05% - 1s 0 0 552.81564 0 68 576.00000 552.81564 4.03% - 1s 0 0 552.81564 0 72 576.00000 552.81564 4.03% - 1s 0 0 552.82242 0 74 576.00000 552.82242 4.02% - 1s 0 0 552.82390 0 76 576.00000 552.82390 4.02% - 1s 0 0 552.83970 0 73 576.00000 552.83970 4.02% - 1s 0 0 552.84576 0 78 576.00000 552.84576 4.02% - 1s 0 0 552.85927 0 81 576.00000 552.85927 4.02% - 1s 0 0 552.86482 0 83 576.00000 552.86482 4.02% - 1s 0 0 552.87416 0 85 576.00000 552.87416 4.01% - 1s 0 0 552.87745 0 87 576.00000 552.87745 4.01% - 1s 0 0 552.88760 0 86 576.00000 552.88760 4.01% - 1s 0 0 552.89454 0 87 576.00000 552.89454 4.01% - 1s 0 0 552.90192 0 85 576.00000 552.90192 4.01% - 2s 0 0 552.90843 0 86 576.00000 552.90843 4.01% - 2s 0 0 552.91800 0 82 576.00000 552.91800 4.01% - 2s 0 0 552.92574 0 82 576.00000 552.92574 4.01% - 2s 0 0 552.92582 0 83 576.00000 552.92582 4.01% - 2s 0 0 552.92582 0 83 576.00000 552.92582 4.01% - 2s 0 2 552.93577 0 83 576.00000 552.93577 4.00% - 3s * 177 130 48 571.0000000 554.13258 2.95% 10.5 3s * 224 145 29 569.0000000 554.15171 2.61% 11.3 3s * 266 166 26 568.0000000 554.17857 2.43% 11.4 4s * 426 238 18 567.0000000 555.19549 2.08% 11.6 4s * 427 214 19 566.0000000 555.19549 1.91% 11.6 4s * 475 208 14 565.0000000 555.40000 1.70% 11.7 4s 601 276 560.33971 12 64 565.00000 555.83333 1.62% 11.9 5s 3170 447 561.75342 25 58 565.00000 561.03704 0.70% 11.5 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 8 Explored 4481 nodes (48227 simplex iterations) in 11.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (39, 50), (9, 23), (9, 27), (10, 50), (10, 51), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (6, 16), (11, 40), (11, 31), (16, 46), (17, 35), (31, 35)] Optimize a model with 542 rows, 1275 columns and 99588 nonzeros Presolve time: 0.05s Presolved: 542 rows, 1275 columns, 99588 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 148 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 64 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09800 0 75 567.00000 552.09800 2.63% - 0s 0 0 552.21336 0 76 567.00000 552.21336 2.61% - 0s 0 0 552.30057 0 80 567.00000 552.30057 2.59% - 0s 0 0 552.33136 0 78 567.00000 552.33136 2.59% - 0s 0 0 552.42120 0 81 567.00000 552.42120 2.57% - 0s 0 0 552.47468 0 80 567.00000 552.47468 2.56% - 0s 0 0 552.58278 0 77 567.00000 552.58278 2.54% - 0s 0 0 552.58643 0 82 567.00000 552.58643 2.54% - 0s 0 0 552.80645 0 70 567.00000 552.80645 2.50% - 0s 0 0 552.81735 0 81 567.00000 552.81735 2.50% - 0s 0 0 552.83639 0 66 567.00000 552.83639 2.50% - 0s 0 0 552.84172 0 71 567.00000 552.84172 2.50% - 0s 0 0 552.85384 0 78 567.00000 552.85384 2.49% - 0s 0 0 552.85384 0 82 567.00000 552.85384 2.49% - 0s 0 0 552.85847 0 78 567.00000 552.85847 2.49% - 0s 0 0 552.85847 0 82 567.00000 552.85847 2.49% - 0s 0 0 552.86198 0 83 567.00000 552.86198 2.49% - 0s 0 0 552.86505 0 85 567.00000 552.86505 2.49% - 1s 0 2 552.87229 0 84 567.00000 552.87229 2.49% - 1s H 195 128 566.0000000 554.68421 2.00% 12.4 2s * 234 141 17 565.0000000 554.84654 1.80% 12.9 2s 642 312 558.88889 26 50 565.00000 556.44444 1.51% 13.4 5s 3947 438 cutoff 23 565.00000 560.80952 0.74% 11.8 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 11 Mod-K: 1 Explored 5746 nodes (62197 simplex iterations) in 12.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 17), (3, 30), (38, 45), (6, 39), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (22, 35), (22, 30), (18, 48), (18, 38), (31, 35)] Optimize a model with 543 rows, 1275 columns and 99778 nonzeros Presolve time: 0.05s Presolved: 543 rows, 1275 columns, 99778 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 65 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09638 0 76 567.00000 552.09638 2.63% - 0s 0 0 552.23757 0 80 567.00000 552.23757 2.60% - 0s 0 0 552.30897 0 82 567.00000 552.30897 2.59% - 0s 0 0 552.34449 0 81 567.00000 552.34449 2.58% - 0s 0 0 552.43842 0 78 567.00000 552.43842 2.57% - 0s 0 0 552.57576 0 81 567.00000 552.57576 2.54% - 0s 0 0 552.60514 0 86 567.00000 552.60514 2.54% - 0s 0 0 552.77291 0 73 567.00000 552.77291 2.51% - 0s 0 0 552.79751 0 81 567.00000 552.79751 2.50% - 0s 0 0 552.82944 0 83 567.00000 552.82944 2.50% - 0s 0 0 552.83612 0 85 567.00000 552.83612 2.50% - 0s 0 0 552.87296 0 87 567.00000 552.87296 2.49% - 0s 0 0 552.88802 0 86 567.00000 552.88802 2.49% - 0s 0 0 552.95062 0 67 567.00000 552.95062 2.48% - 0s 0 0 552.95293 0 73 567.00000 552.95293 2.48% - 0s 0 0 552.95309 0 71 567.00000 552.95309 2.48% - 0s 0 0 552.96483 0 76 567.00000 552.96483 2.48% - 0s 0 0 552.96483 0 76 567.00000 552.96483 2.48% - 1s 0 2 552.96806 0 76 567.00000 552.96806 2.47% - 1s * 37 24 28 566.0000000 554.45455 2.04% 15.0 1s 726 356 558.18519 23 57 566.00000 556.58537 1.66% 13.1 5s * 830 347 40 565.0000000 556.58537 1.49% 13.2 5s 4082 352 563.81699 24 51 565.00000 561.21731 0.67% 11.6 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 10 Explored 5212 nodes (57012 simplex iterations) in 11.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 17), (3, 23), (4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 50), (10, 51), (15, 25), (15, 26), (17, 51), (19, 26), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (29, 32), (31, 35), (31, 50), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 40), (5, 14), (6, 11), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42)] Optimize a model with 545 rows, 1275 columns and 100207 nonzeros Presolve time: 0.05s Presolved: 545 rows, 1275 columns, 100207 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.78715 3.88% - 0s 0 0 551.67597 0 64 573.00000 551.67597 3.72% - 0s 0 0 551.67597 0 57 573.00000 551.67597 3.72% - 0s 0 0 551.80390 0 66 573.00000 551.80390 3.70% - 0s 0 0 551.92502 0 64 573.00000 551.92502 3.68% - 0s 0 0 551.94517 0 70 573.00000 551.94517 3.67% - 0s 0 0 552.09090 0 75 573.00000 552.09090 3.65% - 0s 0 0 552.22345 0 82 573.00000 552.22345 3.63% - 0s 0 0 552.37179 0 78 573.00000 552.37179 3.60% - 0s 0 0 552.44723 0 79 573.00000 552.44723 3.59% - 0s 0 0 552.56698 0 76 573.00000 552.56698 3.57% - 0s 0 0 552.58030 0 77 573.00000 552.58030 3.56% - 0s 0 0 552.62886 0 74 573.00000 552.62886 3.56% - 0s 0 0 552.63204 0 81 573.00000 552.63204 3.55% - 0s 0 0 552.79772 0 73 573.00000 552.79772 3.53% - 0s 0 0 552.80045 0 77 573.00000 552.80045 3.53% - 0s 0 0 552.80404 0 81 573.00000 552.80404 3.52% - 0s 0 0 552.83530 0 75 573.00000 552.83530 3.52% - 0s 0 0 552.84979 0 81 573.00000 552.84979 3.52% - 0s 0 0 552.87109 0 78 573.00000 552.87109 3.51% - 1s 0 0 552.87110 0 83 573.00000 552.87110 3.51% - 1s 0 0 552.90460 0 78 573.00000 552.90460 3.51% - 1s 0 0 552.91679 0 80 573.00000 552.91679 3.50% - 1s 0 0 552.91774 0 83 573.00000 552.91774 3.50% - 1s 0 0 552.92199 0 87 573.00000 552.92199 3.50% - 1s 0 0 552.93742 0 78 573.00000 552.93742 3.50% - 1s 0 0 552.93924 0 74 573.00000 552.93924 3.50% - 1s 0 0 552.94197 0 85 573.00000 552.94197 3.50% - 1s 0 0 552.94360 0 84 573.00000 552.94360 3.50% - 1s 0 0 552.94547 0 85 573.00000 552.94547 3.50% - 1s 0 0 552.94547 0 87 573.00000 552.94547 3.50% - 1s 0 0 552.94547 0 87 573.00000 552.94547 3.50% - 1s H 0 0 568.0000000 552.94547 2.65% - 2s H 0 0 567.0000000 552.94547 2.48% - 2s 0 2 552.95938 0 87 567.00000 552.95938 2.48% - 2s * 320 188 15 566.0000000 555.52390 1.85% 11.6 3s * 323 167 15 565.0000000 555.52390 1.68% 11.6 3s 615 298 562.00000 12 80 565.00000 556.71429 1.47% 11.3 5s 3578 557 561.37500 20 43 565.00000 560.80000 0.74% 10.9 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 7 Explored 5425 nodes (55528 simplex iterations) in 12.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 19), (8, 24), (8, 27), (10, 31), (10, 50), (11, 31), (11, 40), (14, 42), (15, 26), (16, 38), (16, 46), (17, 39), (17, 51), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (39, 50), (41, 42), (43, 45)] Optimize a model with 546 rows, 1275 columns and 100873 nonzeros Presolve time: 0.05s Presolved: 546 rows, 1275 columns, 100873 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67597 0 64 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 57 566.00000 551.67597 2.53% - 0s 0 0 551.67926 0 65 566.00000 551.67926 2.53% - 0s 0 0 551.83225 0 66 566.00000 551.83225 2.50% - 0s 0 0 551.92332 0 70 566.00000 551.92332 2.49% - 0s 0 0 552.05087 0 70 566.00000 552.05087 2.46% - 0s 0 0 552.17238 0 72 566.00000 552.17238 2.44% - 0s 0 0 552.22813 0 77 566.00000 552.22813 2.43% - 0s 0 0 552.27081 0 74 566.00000 552.27081 2.43% - 0s 0 0 552.27970 0 81 566.00000 552.27970 2.42% - 0s 0 0 552.47188 0 74 566.00000 552.47188 2.39% - 0s 0 0 552.49829 0 76 566.00000 552.49829 2.39% - 0s 0 0 552.51933 0 78 566.00000 552.51933 2.38% - 0s 0 0 552.55089 0 81 566.00000 552.55089 2.38% - 0s 0 0 552.56811 0 81 566.00000 552.56811 2.37% - 0s 0 0 552.70725 0 77 566.00000 552.70725 2.35% - 0s 0 0 552.71452 0 80 566.00000 552.71452 2.35% - 0s 0 0 552.72282 0 82 566.00000 552.72282 2.35% - 0s 0 0 552.76417 0 82 566.00000 552.76417 2.34% - 0s 0 0 552.76417 0 83 566.00000 552.76417 2.34% - 0s 0 0 552.79334 0 74 566.00000 552.79334 2.33% - 0s 0 0 552.79360 0 87 566.00000 552.79360 2.33% - 0s 0 0 552.81173 0 86 566.00000 552.81173 2.33% - 1s 0 0 552.81822 0 86 566.00000 552.81822 2.33% - 1s 0 0 552.81985 0 86 566.00000 552.81985 2.33% - 1s 0 0 552.81985 0 86 566.00000 552.81985 2.33% - 1s 0 2 552.83541 0 86 566.00000 552.83541 2.33% - 1s * 772 303 35 565.0000000 557.00000 1.42% 13.3 4s 1197 320 563.70000 28 47 565.00000 557.70833 1.29% 12.6 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 4354 nodes (45992 simplex iterations) in 8.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (14, 42), (14, 26), (15, 25), (15, 26), (41, 42), (25, 44), (21, 36), (4, 37), (4, 29), (29, 32), (20, 43), (20, 41)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (38, 45), (11, 50), (11, 40), (16, 45), (16, 46), (18, 38), (6, 50)] Optimize a model with 548 rows, 1275 columns and 101149 nonzeros Presolve time: 0.05s Presolved: 548 rows, 1275 columns, 101149 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.78715 4.04% - 0s 0 0 551.67597 0 64 574.00000 551.67597 3.89% - 0s 0 0 551.67597 0 57 574.00000 551.67597 3.89% - 0s 0 0 551.80390 0 66 574.00000 551.80390 3.87% - 0s 0 0 551.92502 0 65 574.00000 551.92502 3.85% - 0s 0 0 551.94517 0 70 574.00000 551.94517 3.84% - 0s 0 0 552.08895 0 76 574.00000 552.08895 3.82% - 0s 0 0 552.21391 0 82 574.00000 552.21391 3.80% - 0s 0 0 552.25457 0 80 574.00000 552.25457 3.79% - 0s 0 0 552.29365 0 79 574.00000 552.29365 3.78% - 0s 0 0 552.35515 0 80 574.00000 552.35515 3.77% - 0s 0 0 552.47977 0 83 574.00000 552.47977 3.75% - 0s 0 0 552.49977 0 77 574.00000 552.49977 3.75% - 0s 0 0 552.59996 0 77 574.00000 552.59996 3.73% - 0s 0 0 552.78287 0 73 574.00000 552.78287 3.70% - 0s 0 0 552.78491 0 78 574.00000 552.78491 3.70% - 0s 0 0 552.81037 0 75 574.00000 552.81037 3.69% - 0s 0 0 552.81041 0 80 574.00000 552.81041 3.69% - 1s 0 0 552.82264 0 76 574.00000 552.82264 3.69% - 1s 0 0 552.82668 0 80 574.00000 552.82668 3.69% - 1s 0 0 552.83192 0 81 574.00000 552.83192 3.69% - 1s 0 0 552.86023 0 81 574.00000 552.86023 3.68% - 1s 0 0 552.88341 0 79 574.00000 552.88341 3.68% - 1s 0 0 552.88341 0 78 574.00000 552.88341 3.68% - 1s 0 2 552.88650 0 78 574.00000 552.88650 3.68% - 2s H 41 36 567.0000000 553.39024 2.40% 12.9 2s * 370 198 29 565.0000000 555.00000 1.77% 12.2 3s 616 298 563.00000 20 78 565.00000 556.56250 1.49% 12.1 5s 3624 652 cutoff 29 565.00000 560.40000 0.81% 11.0 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 8 Explored 6116 nodes (62581 simplex iterations) in 12.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (41, 42), (10, 50), (10, 51), (11, 40), (11, 50), (15, 26), (16, 45), (16, 46), (17, 39), (17, 51), (20, 43), (20, 41), (14, 26), (14, 42)] adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 31), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 550 rows, 1275 columns and 101407 nonzeros Presolve time: 0.06s Presolved: 550 rows, 1275 columns, 101407 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.78715 3.54% - 0s 0 0 551.67597 0 64 571.00000 551.67597 3.38% - 0s 0 0 551.67597 0 57 571.00000 551.67597 3.38% - 0s 0 0 551.80390 0 66 571.00000 551.80390 3.36% - 0s 0 0 551.92502 0 65 571.00000 551.92502 3.34% - 0s 0 0 551.94517 0 70 571.00000 551.94517 3.34% - 0s 0 0 552.09638 0 76 571.00000 552.09638 3.31% - 0s 0 0 552.23126 0 82 571.00000 552.23126 3.29% - 0s 0 0 552.30503 0 79 571.00000 552.30503 3.27% - 0s 0 0 552.34258 0 81 571.00000 552.34258 3.27% - 0s 0 0 552.46059 0 73 571.00000 552.46059 3.25% - 0s 0 0 552.65751 0 85 571.00000 552.65751 3.21% - 0s 0 0 552.81302 0 68 571.00000 552.81302 3.19% - 0s 0 0 552.81547 0 70 571.00000 552.81547 3.18% - 0s 0 0 552.81671 0 78 571.00000 552.81671 3.18% - 0s 0 0 552.86224 0 71 571.00000 552.86224 3.18% - 0s 0 0 552.86505 0 75 571.00000 552.86505 3.18% - 0s 0 0 552.86841 0 72 571.00000 552.86841 3.18% - 1s 0 0 552.86841 0 76 571.00000 552.86841 3.18% - 1s 0 0 552.87057 0 75 571.00000 552.87057 3.18% - 1s 0 0 552.87057 0 79 571.00000 552.87057 3.18% - 1s 0 0 552.87057 0 79 571.00000 552.87057 3.18% - 1s H 0 0 568.0000000 552.87057 2.66% - 1s 0 2 552.88040 0 79 568.00000 552.88040 2.66% - 1s H 87 56 567.0000000 554.58774 2.19% 12.6 2s * 510 270 29 566.0000000 555.57424 1.84% 12.1 2s H 600 304 565.0000000 556.00000 1.59% 12.2 3s 632 328 559.33333 19 40 565.00000 556.00000 1.59% 12.8 5s 3940 726 562.82500 29 48 565.00000 560.31354 0.83% 11.2 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 12 Explored 6875 nodes (70012 simplex iterations) in 13.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 43), (10, 50), (10, 31), (11, 40), (11, 31), (18, 38), (18, 45), (16, 38), (16, 46), (19, 26), (20, 41), (20, 42), (14, 26), (14, 42)] adding cut for [(35, 51), (36, 37), (9, 49), (9, 27), (12, 39), (17, 51), (17, 39), (3, 21), (3, 30), (21, 36), (22, 35), (22, 30), (23, 29), (4, 37), (4, 23), (27, 32), (29, 32)] Optimize a model with 552 rows, 1275 columns and 101731 nonzeros Presolve time: 0.06s Presolved: 552 rows, 1275 columns, 101731 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 64 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09800 0 75 567.00000 552.09800 2.63% - 0s 0 0 552.21336 0 76 567.00000 552.21336 2.61% - 0s 0 0 552.30057 0 80 567.00000 552.30057 2.59% - 0s 0 0 552.33745 0 78 567.00000 552.33745 2.59% - 0s 0 0 552.44681 0 79 567.00000 552.44681 2.57% - 0s 0 0 552.56387 0 82 567.00000 552.56387 2.55% - 0s 0 0 552.68954 0 76 567.00000 552.68954 2.52% - 0s 0 0 552.68954 0 79 567.00000 552.68954 2.52% - 0s 0 0 552.76678 0 75 567.00000 552.76678 2.51% - 0s 0 0 552.77384 0 78 567.00000 552.77384 2.51% - 0s 0 0 552.78116 0 83 567.00000 552.78116 2.51% - 0s 0 0 552.78926 0 86 567.00000 552.78926 2.51% - 0s 0 0 552.81073 0 81 567.00000 552.81073 2.50% - 0s 0 0 552.81517 0 82 567.00000 552.81517 2.50% - 0s 0 0 552.84305 0 79 567.00000 552.84305 2.50% - 0s 0 0 552.85750 0 84 567.00000 552.85750 2.49% - 0s 0 0 552.86615 0 87 567.00000 552.86615 2.49% - 0s 0 0 552.87495 0 86 567.00000 552.87495 2.49% - 0s 0 0 552.88524 0 84 567.00000 552.88524 2.49% - 1s 0 0 552.89179 0 87 567.00000 552.89179 2.49% - 1s 0 0 552.89331 0 87 567.00000 552.89331 2.49% - 1s 0 0 552.92149 0 73 567.00000 552.92149 2.48% - 1s 0 0 552.93145 0 84 567.00000 552.93145 2.48% - 1s H 0 0 566.0000000 552.93145 2.31% - 1s 0 0 552.93145 0 84 566.00000 552.93145 2.31% - 1s 0 2 552.93681 0 84 566.00000 552.93681 2.31% - 1s H 263 137 565.0000000 555.32308 1.71% 13.5 2s 641 309 560.37500 25 56 565.00000 556.74286 1.46% 13.2 5s 4055 429 563.88000 31 53 565.00000 561.00000 0.71% 11.5 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 6 Explored 5408 nodes (58973 simplex iterations) in 11.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (7, 49), (12, 17), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] Optimize a model with 553 rows, 1275 columns and 101921 nonzeros Presolve time: 0.06s Presolved: 553 rows, 1275 columns, 101921 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 587.0000000 550.78715 6.17% - 0s 0 0 551.67597 0 65 587.00000 551.67597 6.02% - 0s 0 0 551.89255 0 69 587.00000 551.89255 5.98% - 0s 0 0 552.03097 0 73 587.00000 552.03097 5.96% - 0s 0 0 552.18859 0 71 587.00000 552.18859 5.93% - 0s 0 0 552.18859 0 75 587.00000 552.18859 5.93% - 0s 0 0 552.34626 0 71 587.00000 552.34626 5.90% - 0s 0 0 552.35887 0 70 587.00000 552.35887 5.90% - 0s 0 0 552.35933 0 71 587.00000 552.35933 5.90% - 0s 0 0 552.37014 0 74 587.00000 552.37014 5.90% - 0s 0 0 552.37014 0 76 587.00000 552.37014 5.90% - 0s 0 0 552.40971 0 76 587.00000 552.40971 5.89% - 1s 0 0 552.44634 0 79 587.00000 552.44634 5.89% - 1s 0 0 552.46684 0 79 587.00000 552.46684 5.88% - 1s 0 0 552.50007 0 78 587.00000 552.50007 5.88% - 1s 0 0 552.54818 0 79 587.00000 552.54818 5.87% - 1s 0 0 552.63067 0 84 587.00000 552.63067 5.86% - 1s 0 0 552.65152 0 82 587.00000 552.65152 5.85% - 1s 0 0 552.65337 0 85 587.00000 552.65337 5.85% - 1s 0 0 552.66255 0 82 587.00000 552.66255 5.85% - 1s 0 0 552.70535 0 85 587.00000 552.70535 5.84% - 1s 0 0 552.70611 0 86 587.00000 552.70611 5.84% - 1s 0 0 552.71447 0 84 587.00000 552.71447 5.84% - 1s 0 0 552.72548 0 85 587.00000 552.72548 5.84% - 1s 0 0 552.72654 0 86 587.00000 552.72654 5.84% - 2s 0 0 552.72744 0 88 587.00000 552.72744 5.84% - 2s H 0 0 582.0000000 552.72744 5.03% - 2s 0 0 552.72850 0 89 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 57 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 81 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 81 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 86 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 85 582.00000 552.72850 5.03% - 2s 0 0 552.72850 0 84 582.00000 552.72850 5.03% - 3s H 0 0 574.0000000 552.72850 3.71% - 3s 0 2 552.72850 0 84 574.00000 552.72850 3.71% - 4s * 71 54 67 570.0000000 553.85839 2.83% 9.5 4s * 295 177 48 566.0000000 554.58131 2.02% 9.8 4s 459 258 561.51064 10 55 566.00000 555.53933 1.85% 10.6 5s * 658 336 32 565.0000000 556.00000 1.59% 11.7 7s 2282 514 562.09770 17 55 565.00000 558.50000 1.15% 11.6 10s 6081 29 563.90909 20 37 565.00000 563.90909 0.19% 10.8 15s Cutting planes: Gomory: 5 MIR: 2 Zero half: 14 Explored 6113 nodes (66631 simplex iterations) in 15.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (39, 50), (9, 23), (9, 27), (10, 50), (10, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (6, 16), (11, 40), (11, 31), (16, 46), (17, 35), (31, 35)] Optimize a model with 555 rows, 1275 columns and 102096 nonzeros Presolve time: 0.06s Presolved: 555 rows, 1275 columns, 102096 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 149 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 64 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09800 0 75 567.00000 552.09800 2.63% - 0s 0 0 552.21336 0 76 567.00000 552.21336 2.61% - 0s 0 0 552.30057 0 80 567.00000 552.30057 2.59% - 0s 0 0 552.33745 0 78 567.00000 552.33745 2.59% - 0s 0 0 552.44681 0 79 567.00000 552.44681 2.57% - 0s 0 0 552.56387 0 82 567.00000 552.56387 2.55% - 0s 0 0 552.68954 0 76 567.00000 552.68954 2.52% - 0s 0 0 552.68954 0 79 567.00000 552.68954 2.52% - 0s 0 0 552.76678 0 75 567.00000 552.76678 2.51% - 0s 0 0 552.77392 0 78 567.00000 552.77392 2.51% - 0s 0 0 552.78960 0 79 567.00000 552.78960 2.51% - 0s 0 0 552.79522 0 83 567.00000 552.79522 2.51% - 0s 0 0 552.80368 0 85 567.00000 552.80368 2.50% - 0s 0 0 552.81458 0 84 567.00000 552.81458 2.50% - 0s 0 0 552.82450 0 85 567.00000 552.82450 2.50% - 0s 0 0 552.88148 0 72 567.00000 552.88148 2.49% - 0s 0 0 552.91440 0 75 567.00000 552.91440 2.48% - 0s 0 0 552.92782 0 83 567.00000 552.92782 2.48% - 0s 0 0 552.94912 0 82 567.00000 552.94912 2.48% - 0s 0 0 552.95099 0 83 567.00000 552.95099 2.48% - 1s 0 0 552.95132 0 88 567.00000 552.95132 2.48% - 1s 0 2 552.97769 0 88 567.00000 552.97769 2.47% - 1s * 201 112 32 565.0000000 555.25000 1.73% 13.4 2s 618 283 556.84444 14 62 565.00000 556.84444 1.44% 13.3 5s 4126 570 561.75439 22 42 565.00000 560.82609 0.74% 11.1 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 11 Explored 6281 nodes (63726 simplex iterations) in 12.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 49), (9, 27), (10, 50), (10, 51), (7, 49), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] adding cut for [(34, 40), (34, 46), (11, 39), (11, 40), (5, 14), (41, 42), (43, 45), (12, 39), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43)] Optimize a model with 557 rows, 1275 columns and 102397 nonzeros Presolve time: 0.06s Presolved: 557 rows, 1275 columns, 102397 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 579.0000000 550.78715 4.87% - 0s 0 0 551.67597 0 64 579.00000 551.67597 4.72% - 0s 0 0 551.67597 0 57 579.00000 551.67597 4.72% - 0s 0 0 551.80390 0 66 579.00000 551.80390 4.70% - 0s 0 0 551.94517 0 66 579.00000 551.94517 4.67% - 0s 0 0 551.96344 0 70 579.00000 551.96344 4.67% - 0s 0 0 552.08895 0 72 579.00000 552.08895 4.65% - 0s 0 0 552.11124 0 73 579.00000 552.11124 4.64% - 0s 0 0 552.17004 0 78 579.00000 552.17004 4.63% - 0s 0 0 552.34507 0 72 579.00000 552.34507 4.60% - 0s 0 0 552.34507 0 76 579.00000 552.34507 4.60% - 0s 0 0 552.41810 0 76 579.00000 552.41810 4.59% - 1s 0 0 552.44572 0 82 579.00000 552.44572 4.59% - 1s 0 0 552.52160 0 75 579.00000 552.52160 4.57% - 1s 0 0 552.52320 0 79 579.00000 552.52320 4.57% - 1s 0 0 552.58593 0 76 579.00000 552.58593 4.56% - 1s 0 0 552.61660 0 81 579.00000 552.61660 4.56% - 1s 0 0 552.64748 0 82 579.00000 552.64748 4.55% - 1s 0 0 552.66229 0 82 579.00000 552.66229 4.55% - 1s 0 0 552.67358 0 85 579.00000 552.67358 4.55% - 1s 0 0 552.68158 0 79 579.00000 552.68158 4.55% - 1s 0 0 552.69011 0 78 579.00000 552.69011 4.54% - 1s 0 0 552.72523 0 79 579.00000 552.72523 4.54% - 1s 0 0 552.73058 0 85 579.00000 552.73058 4.54% - 1s 0 0 552.74770 0 82 579.00000 552.74770 4.53% - 1s 0 0 552.74990 0 85 579.00000 552.74990 4.53% - 1s 0 0 552.75949 0 87 579.00000 552.75949 4.53% - 2s 0 0 552.77235 0 79 579.00000 552.77235 4.53% - 2s 0 0 552.77235 0 83 579.00000 552.77235 4.53% - 2s 0 0 552.77311 0 84 579.00000 552.77311 4.53% - 2s 0 0 552.77968 0 88 579.00000 552.77968 4.53% - 2s 0 0 552.79089 0 89 579.00000 552.79089 4.53% - 2s 0 0 552.79400 0 88 579.00000 552.79400 4.53% - 2s 0 0 552.79400 0 88 579.00000 552.79400 4.53% - 3s H 0 0 573.0000000 552.79400 3.53% - 3s H 0 0 567.0000000 552.79400 2.51% - 3s 0 2 552.79488 0 88 567.00000 552.79488 2.51% - 3s * 146 85 31 566.0000000 554.20833 2.08% 12.2 4s * 306 143 19 565.0000000 555.46111 1.69% 13.8 4s 601 278 562.84444 12 64 565.00000 556.50000 1.50% 12.8 5s 2146 362 560.31507 23 46 565.00000 559.25000 1.02% 12.9 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 13 Explored 4605 nodes (52512 simplex iterations) in 13.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 33), (3, 22), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (35, 51), (6, 39), (39, 50), (10, 17), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (17, 51), (31, 35)] Optimize a model with 559 rows, 1275 columns and 102579 nonzeros Presolve time: 0.06s Presolved: 559 rows, 1275 columns, 102579 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.78715 3.20% - 0s 0 0 551.67597 0 64 569.00000 551.67597 3.04% - 0s 0 0 551.67597 0 57 569.00000 551.67597 3.04% - 0s 0 0 551.80390 0 66 569.00000 551.80390 3.02% - 0s 0 0 551.92502 0 64 569.00000 551.92502 3.00% - 0s 0 0 551.94517 0 70 569.00000 551.94517 3.00% - 0s 0 0 552.10492 0 73 569.00000 552.10492 2.97% - 0s 0 0 552.16283 0 75 569.00000 552.16283 2.96% - 0s 0 0 552.24071 0 77 569.00000 552.24071 2.95% - 0s 0 0 552.33379 0 79 569.00000 552.33379 2.93% - 0s 0 0 552.48508 0 77 569.00000 552.48508 2.90% - 0s 0 0 552.53810 0 81 569.00000 552.53810 2.89% - 0s 0 0 552.66167 0 78 569.00000 552.66167 2.87% - 0s 0 0 552.66167 0 82 569.00000 552.66167 2.87% - 0s 0 0 552.68234 0 83 569.00000 552.68234 2.87% - 0s 0 0 552.68234 0 84 569.00000 552.68234 2.87% - 0s 0 0 552.71075 0 85 569.00000 552.71075 2.86% - 0s 0 0 552.71109 0 86 569.00000 552.71109 2.86% - 0s 0 0 552.76963 0 67 569.00000 552.76963 2.85% - 1s 0 0 552.76963 0 71 569.00000 552.76963 2.85% - 1s 0 0 552.79569 0 71 569.00000 552.79569 2.85% - 1s H 0 0 567.0000000 552.79569 2.51% - 1s 0 0 552.80431 0 79 567.00000 552.80431 2.50% - 1s 0 0 552.81104 0 81 567.00000 552.81104 2.50% - 1s 0 2 552.82168 0 81 567.00000 552.82168 2.50% - 1s H 94 62 566.0000000 554.43119 2.04% 13.8 2s H 617 322 565.0000000 556.56923 1.49% 12.5 4s 620 326 556.56923 15 62 565.00000 556.56923 1.49% 13.2 5s 3773 207 563.44444 23 45 565.00000 562.00000 0.53% 11.4 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 10 Mod-K: 1 Explored 4227 nodes (47120 simplex iterations) in 10.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 4), (3, 33), (4, 37), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 560 rows, 1275 columns and 102832 nonzeros Presolve time: 0.06s Presolved: 560 rows, 1275 columns, 102832 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start 0 0 551.67597 0 65 1672.00000 551.67597 67.0% - 0s 0 0 551.89255 0 70 1672.00000 551.89255 67.0% - 0s 0 0 552.03097 0 74 1672.00000 552.03097 67.0% - 0s 0 0 552.16195 0 79 1672.00000 552.16195 67.0% - 0s 0 0 552.16195 0 80 1672.00000 552.16195 67.0% - 0s 0 0 552.35114 0 75 1672.00000 552.35114 67.0% - 0s H 0 0 758.0000000 552.35114 27.1% - 0s H 0 0 584.0000000 552.35114 5.42% - 0s H 0 0 580.0000000 552.35114 4.77% - 0s 0 0 552.36578 0 78 580.00000 552.36578 4.76% - 0s 0 0 552.36578 0 57 580.00000 552.36578 4.76% - 1s 0 0 552.42913 0 75 580.00000 552.42913 4.75% - 1s 0 0 552.47885 0 72 580.00000 552.47885 4.75% - 1s 0 0 552.47885 0 75 580.00000 552.47885 4.75% - 1s 0 0 552.55940 0 80 580.00000 552.55940 4.73% - 1s 0 0 552.70303 0 77 580.00000 552.70303 4.71% - 1s 0 0 552.71809 0 78 580.00000 552.71809 4.70% - 1s 0 0 552.79895 0 71 580.00000 552.79895 4.69% - 1s 0 0 552.80170 0 76 580.00000 552.80170 4.69% - 1s 0 0 552.81429 0 80 580.00000 552.81429 4.69% - 1s 0 0 552.81429 0 84 580.00000 552.81429 4.69% - 1s 0 0 552.82091 0 81 580.00000 552.82091 4.69% - 1s 0 0 552.82091 0 84 580.00000 552.82091 4.69% - 1s 0 0 552.86424 0 83 580.00000 552.86424 4.68% - 1s 0 0 552.86444 0 87 580.00000 552.86444 4.68% - 2s 0 0 552.87978 0 81 580.00000 552.87978 4.68% - 2s 0 0 552.88014 0 87 580.00000 552.88014 4.68% - 2s 0 0 552.88014 0 87 580.00000 552.88014 4.68% - 2s 0 2 552.89942 0 87 580.00000 552.89942 4.67% - 3s H 27 27 566.0000000 553.08879 2.28% 14.8 4s 390 214 cutoff 14 566.00000 555.69597 1.82% 12.6 5s H 644 319 565.0000000 556.43226 1.52% 13.2 7s 2083 485 563.66667 29 20 565.00000 558.87500 1.08% 12.3 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 8 Explored 5570 nodes (61050 simplex iterations) in 14.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 45), (5, 19), (29, 32), (31, 35)] adding cut for [(6, 38), (41, 43), (14, 42), (14, 26), (15, 26), (18, 38), (18, 43), (20, 41), (20, 42)] Optimize a model with 562 rows, 1275 columns and 103067 nonzeros Presolve time: 0.06s Presolved: 562 rows, 1275 columns, 103067 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.78715 3.54% - 0s 0 0 551.67597 0 64 571.00000 551.67597 3.38% - 0s 0 0 551.67597 0 57 571.00000 551.67597 3.38% - 0s 0 0 551.80390 0 66 571.00000 551.80390 3.36% - 0s 0 0 551.92502 0 65 571.00000 551.92502 3.34% - 0s 0 0 551.94517 0 70 571.00000 551.94517 3.34% - 0s 0 0 552.09638 0 76 571.00000 552.09638 3.31% - 0s 0 0 552.23126 0 82 571.00000 552.23126 3.29% - 0s 0 0 552.30503 0 79 571.00000 552.30503 3.27% - 0s 0 0 552.34258 0 81 571.00000 552.34258 3.27% - 0s 0 0 552.46059 0 73 571.00000 552.46059 3.25% - 0s 0 0 552.65751 0 85 571.00000 552.65751 3.21% - 0s 0 0 552.81302 0 68 571.00000 552.81302 3.19% - 0s 0 0 552.81547 0 70 571.00000 552.81547 3.18% - 0s 0 0 552.81671 0 78 571.00000 552.81671 3.18% - 0s 0 0 552.86224 0 71 571.00000 552.86224 3.18% - 0s 0 0 552.86505 0 75 571.00000 552.86505 3.18% - 0s 0 0 552.86841 0 73 571.00000 552.86841 3.18% - 1s 0 0 552.86841 0 77 571.00000 552.86841 3.18% - 1s 0 0 552.87057 0 75 571.00000 552.87057 3.18% - 1s 0 0 552.87057 0 79 571.00000 552.87057 3.18% - 1s 0 0 552.87057 0 79 571.00000 552.87057 3.18% - 1s H 0 0 566.0000000 552.87057 2.32% - 1s 0 2 552.88040 0 79 566.00000 552.88040 2.32% - 1s H 192 130 565.0000000 554.96552 1.78% 11.9 2s 617 355 556.36905 11 76 565.00000 556.36905 1.53% 11.8 5s 3875 654 561.25000 24 34 565.00000 560.60000 0.78% 11.0 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 10 Explored 6625 nodes (64772 simplex iterations) in 13.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (6, 38), (29, 32), (31, 35)] Optimize a model with 563 rows, 1275 columns and 103257 nonzeros Presolve time: 0.06s Presolved: 563 rows, 1275 columns, 103257 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67597 0 64 568.00000 551.67597 2.87% - 0s 0 0 551.67597 0 57 568.00000 551.67597 2.87% - 0s 0 0 551.80390 0 66 568.00000 551.80390 2.85% - 0s 0 0 551.92502 0 65 568.00000 551.92502 2.83% - 0s 0 0 551.94517 0 70 568.00000 551.94517 2.83% - 0s 0 0 552.10492 0 73 568.00000 552.10492 2.80% - 0s 0 0 552.16335 0 73 568.00000 552.16335 2.79% - 0s 0 0 552.39601 0 81 568.00000 552.39601 2.75% - 0s 0 0 552.47340 0 77 568.00000 552.47340 2.73% - 0s 0 0 552.79524 0 71 568.00000 552.79524 2.68% - 0s 0 0 552.79524 0 74 568.00000 552.79524 2.68% - 0s 0 0 552.81551 0 66 568.00000 552.81551 2.67% - 0s 0 0 552.81805 0 76 568.00000 552.81805 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 77 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 76 568.00000 552.82447 2.67% - 1s 0 0 552.82541 0 78 568.00000 552.82541 2.67% - 1s 0 0 552.84296 0 72 568.00000 552.84296 2.67% - 1s 0 0 552.84340 0 77 568.00000 552.84340 2.67% - 1s 0 0 552.86799 0 73 568.00000 552.86799 2.66% - 1s 0 0 552.86975 0 81 568.00000 552.86975 2.66% - 1s 0 0 552.87334 0 80 568.00000 552.87334 2.66% - 1s 0 0 552.87401 0 84 568.00000 552.87401 2.66% - 1s 0 0 552.88248 0 85 568.00000 552.88248 2.66% - 1s 0 0 552.88620 0 82 568.00000 552.88620 2.66% - 1s 0 0 552.89004 0 80 568.00000 552.89004 2.66% - 1s 0 0 552.89163 0 86 568.00000 552.89163 2.66% - 1s 0 0 552.89611 0 83 568.00000 552.89611 2.66% - 1s 0 0 552.89611 0 86 568.00000 552.89611 2.66% - 1s 0 0 552.89770 0 80 568.00000 552.89770 2.66% - 1s 0 0 552.89840 0 84 568.00000 552.89840 2.66% - 1s 0 0 552.90154 0 87 568.00000 552.90154 2.66% - 1s 0 0 552.90154 0 87 568.00000 552.90154 2.66% - 2s H 0 0 567.0000000 552.90154 2.49% - 2s 0 2 552.91156 0 87 567.00000 552.91156 2.48% - 2s * 292 172 22 566.0000000 555.02564 1.94% 12.2 3s 615 333 562.07246 21 80 566.00000 556.50000 1.68% 11.5 5s H 671 334 565.0000000 556.50000 1.50% 12.7 5s 3447 499 560.20513 25 53 565.00000 560.20513 0.85% 11.7 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 7 Explored 5660 nodes (61746 simplex iterations) in 12.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (11, 31), (11, 40), (15, 26), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45)] Optimize a model with 564 rows, 1275 columns and 103533 nonzeros Presolve time: 0.06s Presolved: 564 rows, 1275 columns, 103533 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67597 0 64 568.00000 551.67597 2.87% - 0s 0 0 551.67597 0 57 568.00000 551.67597 2.87% - 0s 0 0 551.80390 0 66 568.00000 551.80390 2.85% - 0s 0 0 551.92502 0 65 568.00000 551.92502 2.83% - 0s 0 0 551.94517 0 70 568.00000 551.94517 2.83% - 0s 0 0 552.10492 0 73 568.00000 552.10492 2.80% - 0s 0 0 552.16335 0 73 568.00000 552.16335 2.79% - 0s 0 0 552.39601 0 81 568.00000 552.39601 2.75% - 0s 0 0 552.47340 0 77 568.00000 552.47340 2.73% - 0s 0 0 552.79524 0 71 568.00000 552.79524 2.68% - 0s 0 0 552.79524 0 74 568.00000 552.79524 2.68% - 0s 0 0 552.81551 0 66 568.00000 552.81551 2.67% - 0s 0 0 552.81805 0 76 568.00000 552.81805 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 77 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 76 568.00000 552.82447 2.67% - 1s 0 0 552.82541 0 78 568.00000 552.82541 2.67% - 1s 0 0 552.84296 0 72 568.00000 552.84296 2.67% - 1s 0 0 552.84340 0 77 568.00000 552.84340 2.67% - 1s 0 0 552.86799 0 73 568.00000 552.86799 2.66% - 1s 0 0 552.86975 0 81 568.00000 552.86975 2.66% - 1s 0 0 552.87334 0 80 568.00000 552.87334 2.66% - 1s H 0 0 567.0000000 552.87334 2.49% - 1s 0 0 552.87401 0 84 567.00000 552.87401 2.49% - 1s 0 0 552.88248 0 85 567.00000 552.88248 2.49% - 1s 0 0 552.88620 0 82 567.00000 552.88620 2.49% - 1s 0 0 552.89003 0 83 567.00000 552.89003 2.49% - 1s 0 0 552.89137 0 83 567.00000 552.89137 2.49% - 1s 0 0 552.89137 0 83 567.00000 552.89137 2.49% - 1s 0 0 552.89137 0 83 567.00000 552.89137 2.49% - 1s 0 2 552.90278 0 83 567.00000 552.90278 2.49% - 2s H 116 74 566.0000000 554.71918 1.99% 12.4 2s * 343 190 14 565.0000000 556.05803 1.58% 12.4 3s 613 298 563.50000 8 80 565.00000 556.78715 1.45% 11.9 5s 3455 718 560.57143 20 45 565.00000 560.00000 0.88% 11.1 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 6 Explored 6732 nodes (67502 simplex iterations) in 13.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 565 rows, 1275 columns and 103704 nonzeros Presolve time: 0.06s Presolved: 565 rows, 1275 columns, 103704 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 64 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09800 0 75 567.00000 552.09800 2.63% - 0s 0 0 552.21336 0 76 567.00000 552.21336 2.61% - 0s 0 0 552.30057 0 80 567.00000 552.30057 2.59% - 0s 0 0 552.33745 0 78 567.00000 552.33745 2.59% - 0s 0 0 552.44681 0 79 567.00000 552.44681 2.57% - 0s 0 0 552.56387 0 82 567.00000 552.56387 2.55% - 0s 0 0 552.68954 0 76 567.00000 552.68954 2.52% - 0s 0 0 552.68954 0 79 567.00000 552.68954 2.52% - 0s 0 0 552.76678 0 74 567.00000 552.76678 2.51% - 0s 0 0 552.77384 0 77 567.00000 552.77384 2.51% - 0s 0 0 552.78116 0 82 567.00000 552.78116 2.51% - 0s 0 0 552.78926 0 85 567.00000 552.78926 2.51% - 0s 0 0 552.81073 0 80 567.00000 552.81073 2.50% - 0s 0 0 552.81515 0 81 567.00000 552.81515 2.50% - 0s 0 0 552.84305 0 78 567.00000 552.84305 2.50% - 0s 0 0 552.85750 0 83 567.00000 552.85750 2.49% - 0s 0 0 552.86615 0 86 567.00000 552.86615 2.49% - 1s 0 0 552.88390 0 85 567.00000 552.88390 2.49% - 1s 0 0 552.88470 0 84 567.00000 552.88470 2.49% - 1s 0 0 552.88546 0 85 567.00000 552.88546 2.49% - 1s 0 0 552.89173 0 87 567.00000 552.89173 2.49% - 1s 0 0 552.89330 0 87 567.00000 552.89330 2.49% - 1s 0 0 552.89714 0 86 567.00000 552.89714 2.49% - 1s 0 0 552.92322 0 81 567.00000 552.92322 2.48% - 1s 0 0 552.94208 0 84 567.00000 552.94208 2.48% - 1s 0 0 552.94310 0 88 567.00000 552.94310 2.48% - 1s 0 0 552.94310 0 87 567.00000 552.94310 2.48% - 1s 0 2 552.95733 0 87 567.00000 552.95733 2.48% - 2s * 438 263 20 566.0000000 555.52644 1.85% 11.8 3s 615 362 561.76596 10 83 566.00000 556.04348 1.76% 11.3 5s H 697 364 565.0000000 556.04348 1.59% 12.5 5s 4011 671 563.80000 33 42 565.00000 560.63636 0.77% 10.7 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 8 Explored 6651 nodes (64892 simplex iterations) in 13.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (5, 38), (5, 19), (10, 51), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (6, 50), (31, 35)] adding cut for [(7, 15), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (18, 45), (20, 41), (20, 42)] Optimize a model with 567 rows, 1275 columns and 103840 nonzeros Presolve time: 0.06s Presolved: 567 rows, 1275 columns, 103840 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.78715 3.03% - 0s 0 0 551.67597 0 64 568.00000 551.67597 2.87% - 0s 0 0 551.67597 0 57 568.00000 551.67597 2.87% - 0s 0 0 551.80390 0 66 568.00000 551.80390 2.85% - 0s 0 0 551.92502 0 65 568.00000 551.92502 2.83% - 0s 0 0 551.94517 0 70 568.00000 551.94517 2.83% - 0s 0 0 552.10492 0 73 568.00000 552.10492 2.80% - 0s 0 0 552.16335 0 73 568.00000 552.16335 2.79% - 0s 0 0 552.39601 0 81 568.00000 552.39601 2.75% - 0s 0 0 552.47340 0 77 568.00000 552.47340 2.73% - 0s 0 0 552.79524 0 71 568.00000 552.79524 2.68% - 0s 0 0 552.79524 0 74 568.00000 552.79524 2.68% - 0s 0 0 552.81551 0 66 568.00000 552.81551 2.67% - 0s 0 0 552.81805 0 76 568.00000 552.81805 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 77 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 74 568.00000 552.82447 2.67% - 0s 0 0 552.82447 0 76 568.00000 552.82447 2.67% - 0s 0 0 552.82541 0 78 568.00000 552.82541 2.67% - 1s 0 0 552.84296 0 72 568.00000 552.84296 2.67% - 1s 0 0 552.84340 0 77 568.00000 552.84340 2.67% - 1s 0 0 552.86799 0 73 568.00000 552.86799 2.66% - 1s 0 0 552.86975 0 81 568.00000 552.86975 2.66% - 1s 0 0 552.87334 0 80 568.00000 552.87334 2.66% - 1s 0 0 552.87401 0 84 568.00000 552.87401 2.66% - 1s 0 0 552.88248 0 85 568.00000 552.88248 2.66% - 1s 0 0 552.88620 0 82 568.00000 552.88620 2.66% - 1s 0 0 552.89003 0 83 568.00000 552.89003 2.66% - 1s 0 0 552.89137 0 83 568.00000 552.89137 2.66% - 1s 0 0 552.89137 0 83 568.00000 552.89137 2.66% - 1s 0 2 552.90278 0 83 568.00000 552.90278 2.66% - 2s * 106 64 22 566.0000000 554.71918 1.99% 11.7 2s 614 322 563.22222 22 79 566.00000 556.69683 1.64% 10.9 5s * 704 326 28 565.0000000 556.69683 1.47% 12.2 6s 3602 559 563.85714 22 30 565.00000 560.66667 0.77% 10.6 10s Cutting planes: Gomory: 5 MIR: 2 Zero half: 10 Explored 5613 nodes (55461 simplex iterations) in 12.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 30), (3, 33), (8, 24), (8, 44), (11, 31), (11, 40), (14, 26), (14, 42), (15, 25), (15, 26), (16, 43), (16, 46), (17, 22), (17, 51), (20, 41), (20, 43), (22, 30), (25, 44), (31, 35), (34, 40), (34, 46), (35, 51), (41, 42)] Optimize a model with 568 rows, 1275 columns and 104116 nonzeros Presolve time: 0.06s Presolved: 568 rows, 1275 columns, 104116 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.78715 3.71% - 0s 0 0 551.67597 0 64 572.00000 551.67597 3.55% - 0s 0 0 551.67597 0 57 572.00000 551.67597 3.55% - 0s 0 0 551.80390 0 66 572.00000 551.80390 3.53% - 0s 0 0 551.92502 0 65 572.00000 551.92502 3.51% - 0s 0 0 551.94517 0 70 572.00000 551.94517 3.51% - 0s 0 0 552.08895 0 76 572.00000 552.08895 3.48% - 0s 0 0 552.21391 0 82 572.00000 552.21391 3.46% - 0s 0 0 552.26488 0 81 572.00000 552.26488 3.45% - 0s 0 0 552.36756 0 83 572.00000 552.36756 3.43% - 0s 0 0 552.54968 0 77 572.00000 552.54968 3.40% - 0s 0 0 552.55656 0 81 572.00000 552.55656 3.40% - 0s 0 0 552.62041 0 81 572.00000 552.62041 3.39% - 0s 0 0 552.66045 0 78 572.00000 552.66045 3.38% - 0s 0 0 552.66895 0 82 572.00000 552.66895 3.38% - 0s 0 0 552.81564 0 68 572.00000 552.81564 3.35% - 0s 0 0 552.81564 0 72 572.00000 552.81564 3.35% - 0s 0 0 552.84803 0 70 572.00000 552.84803 3.35% - 1s 0 0 552.85449 0 76 572.00000 552.85449 3.35% - 1s 0 0 552.85801 0 83 572.00000 552.85801 3.35% - 1s 0 0 552.88236 0 83 572.00000 552.88236 3.34% - 1s 0 0 552.88999 0 81 572.00000 552.88999 3.34% - 1s 0 0 552.89745 0 86 572.00000 552.89745 3.34% - 1s 0 0 552.90815 0 85 572.00000 552.90815 3.34% - 1s 0 0 552.90815 0 84 572.00000 552.90815 3.34% - 1s H 0 0 568.0000000 552.90815 2.66% - 1s H 0 0 566.0000000 552.90815 2.31% - 2s 0 2 552.92084 0 84 566.00000 552.92084 2.31% - 2s H 27 24 565.0000000 553.50000 2.04% 15.1 2s 615 273 562.25000 13 86 565.00000 556.50000 1.50% 12.0 5s 3786 356 cutoff 24 565.00000 561.61538 0.60% 10.8 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 7 Explored 4636 nodes (47834 simplex iterations) in 10.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 49), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35)] Optimize a model with 569 rows, 1275 columns and 104306 nonzeros Presolve time: 0.06s Presolved: 569 rows, 1275 columns, 104306 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 145 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.78715 2.86% - 0s 0 0 551.67597 0 64 567.00000 551.67597 2.70% - 0s 0 0 551.67597 0 57 567.00000 551.67597 2.70% - 0s 0 0 551.80390 0 66 567.00000 551.80390 2.68% - 0s 0 0 551.92502 0 64 567.00000 551.92502 2.66% - 0s 0 0 551.94517 0 70 567.00000 551.94517 2.66% - 0s 0 0 552.09800 0 75 567.00000 552.09800 2.63% - 0s 0 0 552.21336 0 76 567.00000 552.21336 2.61% - 0s 0 0 552.30057 0 80 567.00000 552.30057 2.59% - 0s 0 0 552.33745 0 78 567.00000 552.33745 2.59% - 0s 0 0 552.44681 0 79 567.00000 552.44681 2.57% - 0s 0 0 552.56387 0 82 567.00000 552.56387 2.55% - 0s 0 0 552.68954 0 76 567.00000 552.68954 2.52% - 0s 0 0 552.68954 0 79 567.00000 552.68954 2.52% - 0s 0 0 552.76678 0 75 567.00000 552.76678 2.51% - 0s 0 0 552.77384 0 78 567.00000 552.77384 2.51% - 0s 0 0 552.78116 0 83 567.00000 552.78116 2.51% - 0s 0 0 552.78926 0 86 567.00000 552.78926 2.51% - 0s 0 0 552.81073 0 81 567.00000 552.81073 2.50% - 0s 0 0 552.81517 0 82 567.00000 552.81517 2.50% - 0s 0 0 552.84305 0 79 567.00000 552.84305 2.50% - 0s 0 0 552.85750 0 84 567.00000 552.85750 2.49% - 0s 0 0 552.86615 0 87 567.00000 552.86615 2.49% - 0s 0 0 552.87495 0 86 567.00000 552.87495 2.49% - 0s 0 0 552.88524 0 84 567.00000 552.88524 2.49% - 1s 0 0 552.89179 0 87 567.00000 552.89179 2.49% - 1s 0 0 552.89331 0 87 567.00000 552.89331 2.49% - 1s 0 0 552.92149 0 73 567.00000 552.92149 2.48% - 1s 0 0 552.93145 0 84 567.00000 552.93145 2.48% - 1s 0 0 552.93145 0 84 567.00000 552.93145 2.48% - 1s 0 2 552.93808 0 84 567.00000 552.93808 2.48% - 1s H 159 103 566.0000000 554.48571 2.03% 13.8 2s 617 351 562.50000 13 81 566.00000 556.35714 1.70% 12.0 5s * 1212 402 32 565.0000000 556.68750 1.47% 12.4 6s 3603 683 561.55556 24 55 565.00000 559.76744 0.93% 11.5 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 10 Explored 6701 nodes (69824 simplex iterations) in 13.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (3, 17), (3, 30), (38, 45), (6, 50), (10, 39), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (17, 39), (22, 51), (22, 30), (31, 35)] Optimize a model with 570 rows, 1275 columns and 104459 nonzeros Presolve time: 0.06s Presolved: 570 rows, 1275 columns, 104459 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67597 0 64 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 57 566.00000 551.67597 2.53% - 0s 0 0 551.67926 0 65 566.00000 551.67926 2.53% - 0s 0 0 551.83225 0 66 566.00000 551.83225 2.50% - 0s 0 0 551.92332 0 70 566.00000 551.92332 2.49% - 0s 0 0 552.05087 0 70 566.00000 552.05087 2.46% - 0s 0 0 552.15516 0 72 566.00000 552.15516 2.45% - 0s 0 0 552.23979 0 77 566.00000 552.23979 2.43% - 0s 0 0 552.24710 0 79 566.00000 552.24710 2.43% - 0s 0 0 552.37903 0 69 566.00000 552.37903 2.41% - 0s 0 0 552.37903 0 73 566.00000 552.37903 2.41% - 0s 0 0 552.40585 0 67 566.00000 552.40585 2.40% - 0s 0 0 552.40585 0 71 566.00000 552.40585 2.40% - 0s 0 0 552.44493 0 67 566.00000 552.44493 2.39% - 0s 0 0 552.44493 0 71 566.00000 552.44493 2.39% - 0s 0 0 552.47374 0 73 566.00000 552.47374 2.39% - 0s 0 0 552.47627 0 80 566.00000 552.47627 2.39% - 0s 0 0 552.52157 0 74 566.00000 552.52157 2.38% - 0s 0 0 552.52157 0 78 566.00000 552.52157 2.38% - 1s 0 0 552.52969 0 81 566.00000 552.52969 2.38% - 1s 0 0 552.52969 0 82 566.00000 552.52969 2.38% - 1s 0 0 552.55116 0 81 566.00000 552.55116 2.38% - 1s 0 0 552.55116 0 82 566.00000 552.55116 2.38% - 1s 0 0 552.56304 0 81 566.00000 552.56304 2.37% - 1s 0 0 552.57232 0 82 566.00000 552.57232 2.37% - 1s 0 0 552.58088 0 83 566.00000 552.58088 2.37% - 1s 0 0 552.58342 0 83 566.00000 552.58342 2.37% - 1s 0 0 552.58495 0 83 566.00000 552.58495 2.37% - 1s 0 0 552.69404 0 80 566.00000 552.69404 2.35% - 1s 0 0 552.85558 0 71 566.00000 552.85558 2.32% - 1s 0 0 552.86518 0 72 566.00000 552.86518 2.32% - 1s 0 0 552.88551 0 73 566.00000 552.88551 2.32% - 1s 0 0 552.89155 0 71 566.00000 552.89155 2.32% - 1s 0 0 552.89708 0 74 566.00000 552.89708 2.32% - 1s 0 0 552.90470 0 73 566.00000 552.90470 2.31% - 1s 0 0 552.90797 0 74 566.00000 552.90797 2.31% - 1s 0 0 552.90816 0 77 566.00000 552.90816 2.31% - 1s 0 0 552.90997 0 76 566.00000 552.90997 2.31% - 1s 0 0 552.91894 0 77 566.00000 552.91894 2.31% - 1s 0 0 552.92292 0 79 566.00000 552.92292 2.31% - 1s 0 0 552.92292 0 79 566.00000 552.92292 2.31% - 2s 0 2 552.92461 0 79 566.00000 552.92461 2.31% - 2s * 34 29 26 565.0000000 553.30000 2.07% 13.6 2s 615 261 559.69643 16 80 565.00000 556.71429 1.47% 12.3 5s 3349 668 560.50000 24 43 565.00000 559.50000 0.97% 11.7 10s Cutting planes: Gomory: 6 MIR: 2 Zero half: 9 Explored 6796 nodes (72504 simplex iterations) in 14.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (36, 37), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (23, 29), (4, 37), (4, 29), (5, 38), (5, 19), (31, 35)] Optimize a model with 571 rows, 1275 columns and 104630 nonzeros Presolve time: 0.06s Presolved: 571 rows, 1275 columns, 104630 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.78715 2.69% - 0s 0 0 551.67597 0 64 566.00000 551.67597 2.53% - 0s 0 0 551.67597 0 57 566.00000 551.67597 2.53% - 0s 0 0 551.67926 0 65 566.00000 551.67926 2.53% - 0s 0 0 551.83225 0 66 566.00000 551.83225 2.50% - 0s 0 0 551.92332 0 70 566.00000 551.92332 2.49% - 0s 0 0 552.05087 0 70 566.00000 552.05087 2.46% - 0s 0 0 552.15516 0 72 566.00000 552.15516 2.45% - 0s 0 0 552.23979 0 77 566.00000 552.23979 2.43% - 0s 0 0 552.24710 0 79 566.00000 552.24710 2.43% - 0s 0 0 552.37903 0 69 566.00000 552.37903 2.41% - 0s 0 0 552.37903 0 73 566.00000 552.37903 2.41% - 0s 0 0 552.40585 0 67 566.00000 552.40585 2.40% - 0s 0 0 552.40585 0 71 566.00000 552.40585 2.40% - 0s 0 0 552.44493 0 67 566.00000 552.44493 2.39% - 0s 0 0 552.44493 0 71 566.00000 552.44493 2.39% - 0s 0 0 552.47374 0 73 566.00000 552.47374 2.39% - 0s 0 0 552.47627 0 80 566.00000 552.47627 2.39% - 0s 0 0 552.52234 0 80 566.00000 552.52234 2.38% - 0s 0 0 552.52234 0 81 566.00000 552.52234 2.38% - 0s 0 0 552.54249 0 80 566.00000 552.54249 2.38% - 1s 0 0 552.54418 0 83 566.00000 552.54418 2.38% - 1s 0 0 552.54909 0 83 566.00000 552.54909 2.38% - 1s 0 0 552.55629 0 81 566.00000 552.55629 2.38% - 1s 0 0 552.59057 0 77 566.00000 552.59057 2.37% - 1s 0 0 552.59397 0 81 566.00000 552.59397 2.37% - 1s 0 0 552.70635 0 80 566.00000 552.70635 2.35% - 1s 0 0 552.71619 0 83 566.00000 552.71619 2.35% - 1s 0 0 552.74602 0 74 566.00000 552.74602 2.34% - 1s 0 0 552.74610 0 79 566.00000 552.74610 2.34% - 1s 0 0 552.79980 0 83 566.00000 552.79980 2.33% - 1s 0 0 552.79980 0 84 566.00000 552.79980 2.33% - 1s 0 0 552.80992 0 81 566.00000 552.80992 2.33% - 1s 0 0 552.81636 0 83 566.00000 552.81636 2.33% - 1s 0 0 552.81677 0 83 566.00000 552.81677 2.33% - 1s 0 0 552.81677 0 83 566.00000 552.81677 2.33% - 1s 0 2 552.81928 0 83 566.00000 552.81928 2.33% - 2s * 416 201 31 565.0000000 555.50000 1.68% 13.0 3s 616 279 559.12500 9 85 565.00000 556.64286 1.48% 12.3 5s 3664 632 562.66667 28 39 565.00000 560.48000 0.80% 11.3 10s Cutting planes: Gomory: 5 MIR: 2 Zero half: 13 Explored 6168 nodes (63828 simplex iterations) in 13.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (11, 31), (11, 40), (14, 26), (14, 42), (15, 26), (16, 43), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43)] Optimize a model with 572 rows, 1275 columns and 104906 nonzeros Presolve time: 0.06s Presolved: 572 rows, 1275 columns, 104906 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.78715 4.04% - 0s 0 0 551.67597 0 64 574.00000 551.67597 3.89% - 0s 0 0 551.67597 0 57 574.00000 551.67597 3.89% - 0s 0 0 551.80390 0 66 574.00000 551.80390 3.87% - 0s 0 0 551.92502 0 64 574.00000 551.92502 3.85% - 0s 0 0 551.94517 0 70 574.00000 551.94517 3.84% - 0s 0 0 552.09090 0 75 574.00000 552.09090 3.82% - 0s 0 0 552.21978 0 85 574.00000 552.21978 3.79% - 0s 0 0 552.36123 0 77 574.00000 552.36123 3.77% - 0s 0 0 552.41730 0 79 574.00000 552.41730 3.76% - 0s 0 0 552.48467 0 81 574.00000 552.48467 3.75% - 0s 0 0 552.64658 0 79 574.00000 552.64658 3.72% - 0s 0 0 552.64658 0 83 574.00000 552.64658 3.72% - 0s 0 0 552.72452 0 79 574.00000 552.72452 3.71% - 0s 0 0 552.75634 0 86 574.00000 552.75634 3.70% - 0s 0 0 552.77524 0 81 574.00000 552.77524 3.70% - 0s 0 0 552.77524 0 85 574.00000 552.77524 3.70% - 1s 0 0 552.81448 0 61 574.00000 552.81448 3.69% - 1s 0 0 552.81818 0 77 574.00000 552.81818 3.69% - 1s 0 0 552.84996 0 71 574.00000 552.84996 3.68% - 1s 0 0 552.85972 0 77 574.00000 552.85972 3.68% - 1s 0 0 552.86151 0 78 574.00000 552.86151 3.68% - 1s 0 0 552.87304 0 81 574.00000 552.87304 3.68% - 1s 0 0 552.87359 0 86 574.00000 552.87359 3.68% - 1s 0 0 552.88304 0 78 574.00000 552.88304 3.68% - 1s 0 0 552.88311 0 86 574.00000 552.88311 3.68% - 1s 0 0 552.89219 0 83 574.00000 552.89219 3.68% - 1s 0 0 552.90872 0 82 574.00000 552.90872 3.67% - 1s 0 0 552.90872 0 85 574.00000 552.90872 3.67% - 1s 0 0 552.91824 0 81 574.00000 552.91824 3.67% - 1s 0 0 552.92125 0 85 574.00000 552.92125 3.67% - 1s H 0 0 567.0000000 552.92125 2.48% - 1s 0 0 552.94054 0 84 567.00000 552.94054 2.48% - 1s 0 2 553.08710 0 84 567.00000 553.08710 2.45% - 2s 188 119 564.00000 35 31 567.00000 554.61224 2.18% 17.4 5s * 235 115 41 565.0000000 554.61765 1.84% 15.8 5s 3271 930 561.86047 32 47 565.00000 559.50802 0.97% 11.9 10s 6472 748 cutoff 27 565.00000 561.28571 0.66% 11.6 15s Cutting planes: Gomory: 12 MIR: 5 Zero half: 18 Mod-K: 1 Explored 8461 nodes (92950 simplex iterations) in 17.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 46), (9, 23), (9, 27), (11, 40), (11, 31), (34, 40), (34, 46), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 14), (5, 19), (41, 43), (43, 45), (14, 42), (16, 38), (16, 45), (18, 38), (20, 41), (20, 42)] Optimize a model with 574 rows, 1275 columns and 105132 nonzeros Presolve time: 0.06s Presolved: 574 rows, 1275 columns, 105132 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 576.0000000 550.78715 4.38% - 0s 0 0 551.67597 0 64 576.00000 551.67597 4.22% - 0s 0 0 551.67597 0 57 576.00000 551.67597 4.22% - 0s 0 0 551.80390 0 66 576.00000 551.80390 4.20% - 0s 0 0 551.92502 0 64 576.00000 551.92502 4.18% - 0s 0 0 551.94517 0 70 576.00000 551.94517 4.18% - 0s 0 0 552.09090 0 75 576.00000 552.09090 4.15% - 0s 0 0 552.21549 0 83 576.00000 552.21549 4.13% - 0s 0 0 552.32988 0 80 576.00000 552.32988 4.11% - 0s 0 0 552.48008 0 75 576.00000 552.48008 4.08% - 0s 0 0 552.48008 0 79 576.00000 552.48008 4.08% - 0s 0 0 552.56583 0 79 576.00000 552.56583 4.07% - 0s 0 0 552.57278 0 83 576.00000 552.57278 4.07% - 0s 0 0 552.81564 0 67 576.00000 552.81564 4.03% - 0s 0 0 552.81564 0 71 576.00000 552.81564 4.03% - 1s 0 0 552.83233 0 70 576.00000 552.83233 4.02% - 1s 0 0 552.83265 0 79 576.00000 552.83265 4.02% - 1s 0 0 552.83649 0 77 576.00000 552.83649 4.02% - 1s 0 0 552.83986 0 73 576.00000 552.83986 4.02% - 1s 0 0 552.84144 0 79 576.00000 552.84144 4.02% - 1s 0 0 552.86501 0 78 576.00000 552.86501 4.02% - 1s 0 0 552.88564 0 80 576.00000 552.88564 4.01% - 1s 0 0 552.89312 0 77 576.00000 552.89312 4.01% - 1s 0 0 552.89312 0 80 576.00000 552.89312 4.01% - 1s 0 0 552.90008 0 73 576.00000 552.90008 4.01% - 1s 0 0 552.90176 0 82 576.00000 552.90176 4.01% - 1s 0 0 552.90598 0 81 576.00000 552.90598 4.01% - 1s 0 0 552.91199 0 78 576.00000 552.91199 4.01% - 1s 0 0 552.91552 0 77 576.00000 552.91552 4.01% - 1s 0 0 552.92102 0 80 576.00000 552.92102 4.01% - 1s 0 0 552.92232 0 79 576.00000 552.92232 4.01% - 1s 0 0 552.92246 0 82 576.00000 552.92246 4.01% - 1s 0 0 552.92303 0 82 576.00000 552.92303 4.01% - 1s 0 0 552.92368 0 81 576.00000 552.92368 4.01% - 2s 0 0 552.92461 0 78 576.00000 552.92461 4.01% - 2s 0 0 552.92461 0 82 576.00000 552.92461 4.01% - 2s 0 0 552.92461 0 82 576.00000 552.92461 4.01% - 2s 0 2 552.93265 0 82 576.00000 552.93265 4.00% - 3s H 80 48 567.0000000 553.57353 2.37% 12.3 4s * 328 210 30 566.0000000 555.32432 1.89% 12.3 4s 561 314 563.14062 23 57 566.00000 556.30352 1.71% 12.2 5s H 781 373 565.0000000 556.37731 1.53% 13.7 7s 2207 448 561.65000 22 45 565.00000 559.29799 1.01% 12.3 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 11 Explored 5282 nodes (56370 simplex iterations) in 14.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 19), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (14, 19), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 575 rows, 1275 columns and 105483 nonzeros Presolve time: 0.06s Presolved: 575 rows, 1275 columns, 105483 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.78715 3.54% - 0s 0 0 551.67597 0 64 571.00000 551.67597 3.38% - 0s 0 0 551.67597 0 57 571.00000 551.67597 3.38% - 0s 0 0 551.80390 0 66 571.00000 551.80390 3.36% - 0s 0 0 551.92502 0 64 571.00000 551.92502 3.34% - 0s 0 0 551.94517 0 70 571.00000 551.94517 3.34% - 0s 0 0 552.09800 0 75 571.00000 552.09800 3.31% - 0s 0 0 552.17957 0 80 571.00000 552.17957 3.30% - 0s 0 0 552.25322 0 79 571.00000 552.25322 3.28% - 0s 0 0 552.30617 0 80 571.00000 552.30617 3.27% - 0s 0 0 552.40458 0 76 571.00000 552.40458 3.26% - 0s 0 0 552.57368 0 77 571.00000 552.57368 3.23% - 0s 0 0 552.57368 0 81 571.00000 552.57368 3.23% - 0s 0 0 552.75209 0 74 571.00000 552.75209 3.20% - 0s 0 0 552.75209 0 77 571.00000 552.75209 3.20% - 0s 0 0 552.76563 0 78 571.00000 552.76563 3.19% - 0s 0 0 552.76846 0 84 571.00000 552.76846 3.19% - 0s 0 0 552.80701 0 79 571.00000 552.80701 3.19% - 1s 0 0 552.80701 0 82 571.00000 552.80701 3.19% - 1s 0 0 552.81015 0 77 571.00000 552.81015 3.19% - 1s 0 0 552.81015 0 80 571.00000 552.81015 3.19% - 1s 0 0 552.81931 0 73 571.00000 552.81931 3.18% - 1s 0 0 552.82861 0 81 571.00000 552.82861 3.18% - 1s 0 0 552.83897 0 78 571.00000 552.83897 3.18% - 1s 0 0 552.84311 0 83 571.00000 552.84311 3.18% - 1s 0 0 552.85152 0 83 571.00000 552.85152 3.18% - 1s 0 0 552.85659 0 84 571.00000 552.85659 3.18% - 1s 0 0 552.86185 0 85 571.00000 552.86185 3.18% - 1s 0 0 552.87034 0 85 571.00000 552.87034 3.18% - 1s 0 0 552.88545 0 83 571.00000 552.88545 3.17% - 1s 0 0 552.88547 0 83 571.00000 552.88547 3.17% - 1s 0 0 552.88547 0 83 571.00000 552.88547 3.17% - 1s H 0 0 570.0000000 552.88547 3.00% - 2s H 0 0 567.0000000 552.88547 2.49% - 2s 0 2 552.88586 0 83 567.00000 552.88586 2.49% - 2s * 257 175 24 566.0000000 554.87399 1.97% 13.1 3s 618 346 564.50000 25 78 566.00000 556.50000 1.68% 12.1 5s H 701 338 565.0000000 556.50000 1.50% 13.3 6s 3117 626 562.93548 18 65 565.00000 559.23529 1.02% 11.9 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 12 Explored 6359 nodes (70184 simplex iterations) in 14.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 576 rows, 1275 columns and 105693 nonzeros Presolve time: 0.06s Presolved: 576 rows, 1275 columns, 105693 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.78715 3.88% - 0s 0 0 551.67597 0 64 573.00000 551.67597 3.72% - 0s 0 0 551.67597 0 57 573.00000 551.67597 3.72% - 0s 0 0 551.80390 0 66 573.00000 551.80390 3.70% - 0s 0 0 551.92502 0 64 573.00000 551.92502 3.68% - 0s 0 0 551.94517 0 70 573.00000 551.94517 3.67% - 0s 0 0 552.09090 0 75 573.00000 552.09090 3.65% - 0s 0 0 552.20503 0 84 573.00000 552.20503 3.63% - 0s 0 0 552.30166 0 73 573.00000 552.30166 3.61% - 0s 0 0 552.30812 0 74 573.00000 552.30812 3.61% - 0s 0 0 552.47753 0 82 573.00000 552.47753 3.58% - 0s 0 0 552.57356 0 82 573.00000 552.57356 3.56% - 0s 0 0 552.76778 0 71 573.00000 552.76778 3.53% - 0s 0 0 552.77059 0 81 573.00000 552.77059 3.53% - 0s 0 0 552.79511 0 81 573.00000 552.79511 3.53% - 0s 0 0 552.80505 0 84 573.00000 552.80505 3.52% - 0s 0 0 552.80988 0 79 573.00000 552.80988 3.52% - 0s 0 0 552.81054 0 80 573.00000 552.81054 3.52% - 0s 0 0 552.83486 0 80 573.00000 552.83486 3.52% - 1s 0 0 552.84615 0 71 573.00000 552.84615 3.52% - 1s 0 0 552.84615 0 75 573.00000 552.84615 3.52% - 1s 0 0 552.84759 0 75 573.00000 552.84759 3.52% - 1s 0 0 552.84915 0 78 573.00000 552.84915 3.52% - 1s 0 2 552.85033 0 78 573.00000 552.85033 3.52% - 2s * 110 80 32 572.0000000 554.02502 3.14% 10.6 2s * 176 114 58 569.0000000 554.39726 2.57% 9.9 2s * 369 236 22 568.0000000 555.11591 2.27% 11.9 2s H 446 251 567.0000000 555.44330 2.04% 12.1 3s 615 334 564.66102 24 84 567.00000 556.22727 1.90% 11.7 5s * 689 342 54 566.0000000 556.22727 1.73% 12.7 5s * 719 322 34 565.0000000 556.22727 1.55% 12.7 5s 3459 522 562.53333 28 46 565.00000 560.00000 0.88% 11.8 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 8 Explored 5859 nodes (64158 simplex iterations) in 13.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(36, 37), (39, 50), (9, 49), (9, 27), (10, 50), (10, 51), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(2, 23), (3, 17), (3, 23), (6, 38), (38, 45), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (17, 35), (31, 35)] Optimize a model with 578 rows, 1275 columns and 105904 nonzeros Presolve time: 0.06s Presolved: 578 rows, 1275 columns, 105904 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.507871e+02, 135 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.78715 0 57 1672.00000 550.78715 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.78715 3.54% - 0s 0 0 551.67597 0 64 571.00000 551.67597 3.38% - 0s 0 0 551.67597 0 57 571.00000 551.67597 3.38% - 0s 0 0 551.80390 0 66 571.00000 551.80390 3.36% - 0s 0 0 551.92502 0 64 571.00000 551.92502 3.34% - 0s 0 0 551.94517 0 70 571.00000 551.94517 3.34% - 0s 0 0 552.09800 0 75 571.00000 552.09800 3.31% - 0s 0 0 552.17957 0 80 571.00000 552.17957 3.30% - 0s 0 0 552.25322 0 79 571.00000 552.25322 3.28% - 0s 0 0 552.30617 0 80 571.00000 552.30617 3.27% - 0s 0 0 552.40458 0 76 571.00000 552.40458 3.26% - 0s 0 0 552.57368 0 77 571.00000 552.57368 3.23% - 0s 0 0 552.57368 0 81 571.00000 552.57368 3.23% - 0s 0 0 552.75209 0 74 571.00000 552.75209 3.20% - 0s 0 0 552.75209 0 77 571.00000 552.75209 3.20% - 0s 0 0 552.76563 0 78 571.00000 552.76563 3.19% - 0s 0 0 552.76846 0 84 571.00000 552.76846 3.19% - 0s 0 0 552.80701 0 79 571.00000 552.80701 3.19% - 1s 0 0 552.80701 0 82 571.00000 552.80701 3.19% - 1s 0 0 552.81015 0 77 571.00000 552.81015 3.19% - 1s 0 0 552.81015 0 80 571.00000 552.81015 3.19% - 1s 0 0 552.81931 0 73 571.00000 552.81931 3.18% - 1s 0 0 552.82861 0 81 571.00000 552.82861 3.18% - 1s 0 0 552.83897 0 78 571.00000 552.83897 3.18% - 1s 0 0 552.84311 0 83 571.00000 552.84311 3.18% - 1s 0 0 552.85152 0 83 571.00000 552.85152 3.18% - 1s 0 0 552.85659 0 84 571.00000 552.85659 3.18% - 1s 0 0 552.86185 0 85 571.00000 552.86185 3.18% - 1s 0 0 552.87034 0 85 571.00000 552.87034 3.18% - 1s 0 0 552.88545 0 83 571.00000 552.88545 3.17% - 1s 0 0 552.88547 0 83 571.00000 552.88547 3.17% - 1s 0 0 552.88547 0 83 571.00000 552.88547 3.17% - 1s H 0 0 569.0000000 552.88547 2.83% - 2s 0 2 552.88586 0 83 569.00000 552.88586 2.83% - 2s * 106 76 30 567.0000000 554.10857 2.27% 10.6 2s * 278 159 20 565.0000000 554.83730 1.80% 11.4 2s 614 293 559.14286 22 83 565.00000 556.11450 1.57% 11.5 5s 3530 498 562.10959 25 46 565.00000 560.61667 0.78% 11.1 10s Cutting planes: Gomory: 5 MIR: 2 Zero half: 9 Explored 5388 nodes (56378 simplex iterations) in 12.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 4), (3, 17), (4, 37), (6, 38), (10, 50), (10, 51), (11, 31), (11, 40), (12, 39), (16, 45), (16, 46), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (31, 35), (34, 40), (34, 46), (36, 37), (38, 45), (39, 50)] Optimize a model with 579 rows, 1275 columns and 106157 nonzeros Presolve time: 0.06s Presolved: 579 rows, 1275 columns, 106157 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.80952 3.54% - 0s 0 0 551.41379 0 65 571.00000 551.41379 3.43% - 0s 0 0 551.41379 0 58 571.00000 551.41379 3.43% - 0s 0 0 551.92276 0 64 571.00000 551.92276 3.34% - 0s 0 0 552.03565 0 65 571.00000 552.03565 3.32% - 0s 0 0 552.03565 0 69 571.00000 552.03565 3.32% - 0s 0 0 552.25519 0 68 571.00000 552.25519 3.28% - 0s 0 0 552.25519 0 72 571.00000 552.25519 3.28% - 0s 0 0 552.38567 0 71 571.00000 552.38567 3.26% - 0s 0 0 552.38567 0 75 571.00000 552.38567 3.26% - 0s 0 0 552.42572 0 70 571.00000 552.42572 3.25% - 0s 0 0 552.44109 0 77 571.00000 552.44109 3.25% - 0s 0 0 552.44552 0 78 571.00000 552.44552 3.25% - 0s 0 0 552.44601 0 85 571.00000 552.44601 3.25% - 0s 0 0 552.44882 0 78 571.00000 552.44882 3.25% - 1s 0 0 552.44882 0 81 571.00000 552.44882 3.25% - 1s 0 0 552.45395 0 79 571.00000 552.45395 3.25% - 1s 0 0 552.45395 0 82 571.00000 552.45395 3.25% - 1s 0 0 552.47102 0 73 571.00000 552.47102 3.25% - 1s H 0 0 570.0000000 552.47102 3.08% - 1s 0 0 552.47102 0 77 570.00000 552.47102 3.08% - 1s 0 0 552.47798 0 81 570.00000 552.47798 3.07% - 1s 0 0 552.53581 0 80 570.00000 552.53581 3.06% - 1s 0 0 552.53581 0 83 570.00000 552.53581 3.06% - 1s 0 0 552.62110 0 72 570.00000 552.62110 3.05% - 1s 0 0 552.62110 0 75 570.00000 552.62110 3.05% - 1s 0 0 552.62520 0 74 570.00000 552.62520 3.05% - 1s 0 0 552.62520 0 77 570.00000 552.62520 3.05% - 1s 0 0 552.63586 0 75 570.00000 552.63586 3.05% - 1s 0 0 552.63627 0 81 570.00000 552.63627 3.05% - 1s 0 0 552.70630 0 65 570.00000 552.70630 3.03% - 1s 0 0 552.70630 0 69 570.00000 552.70630 3.03% - 1s 0 0 552.70933 0 78 570.00000 552.70933 3.03% - 1s 0 0 552.72261 0 84 570.00000 552.72261 3.03% - 1s 0 0 552.75778 0 71 570.00000 552.75778 3.02% - 1s 0 0 552.78651 0 79 570.00000 552.78651 3.02% - 2s 0 0 552.79497 0 81 570.00000 552.79497 3.02% - 2s 0 0 552.79497 0 80 570.00000 552.79497 3.02% - 2s 0 2 552.79523 0 80 570.00000 552.79523 3.02% - 2s H 27 27 569.0000000 554.05582 2.63% 18.1 2s H 122 76 568.0000000 554.37209 2.40% 13.0 3s * 227 139 29 567.0000000 554.79032 2.15% 12.2 3s H 396 187 566.0000000 555.49495 1.86% 11.8 3s H 600 270 565.0000000 556.20000 1.56% 12.3 4s 607 274 557.00000 7 73 565.00000 556.20000 1.56% 12.1 5s 2475 474 562.85000 21 49 565.00000 559.11111 1.04% 12.1 10s Cutting planes: Gomory: 9 MIR: 2 Zero half: 11 Explored 4984 nodes (56846 simplex iterations) in 13.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 30), (4, 29), (4, 37), (7, 49), (8, 27), (8, 44), (9, 27), (9, 32), (10, 39), (10, 51), (17, 22), (21, 30), (21, 36), (22, 35), (24, 25), (24, 49), (25, 44), (29, 32), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 50), (11, 31), (5, 14), (41, 43), (43, 45), (14, 42), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 42), (6, 50), (31, 40)] Optimize a model with 581 rows, 1275 columns and 106524 nonzeros Presolve time: 0.06s Presolved: 581 rows, 1275 columns, 106524 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.80952 4.04% - 0s 0 0 551.41379 0 65 574.00000 551.41379 3.93% - 0s 0 0 551.41379 0 58 574.00000 551.41379 3.93% - 0s 0 0 551.92276 0 64 574.00000 551.92276 3.85% - 0s 0 0 552.03565 0 65 574.00000 552.03565 3.83% - 0s 0 0 552.03565 0 69 574.00000 552.03565 3.83% - 0s 0 0 552.15828 0 72 574.00000 552.15828 3.81% - 0s 0 0 552.15828 0 76 574.00000 552.15828 3.81% - 0s 0 0 552.18743 0 69 574.00000 552.18743 3.80% - 0s 0 0 552.18743 0 73 574.00000 552.18743 3.80% - 0s 0 0 552.31638 0 78 574.00000 552.31638 3.78% - 0s 0 0 552.31638 0 82 574.00000 552.31638 3.78% - 1s 0 0 552.50896 0 71 574.00000 552.50896 3.74% - 1s 0 0 552.51527 0 81 574.00000 552.51527 3.74% - 1s 0 0 552.51893 0 78 574.00000 552.51893 3.74% - 1s 0 0 552.51893 0 81 574.00000 552.51893 3.74% - 1s 0 0 552.52306 0 81 574.00000 552.52306 3.74% - 1s 0 0 552.52306 0 84 574.00000 552.52306 3.74% - 1s 0 0 552.52771 0 79 574.00000 552.52771 3.74% - 1s 0 0 552.52795 0 86 574.00000 552.52795 3.74% - 1s 0 0 552.52982 0 81 574.00000 552.52982 3.74% - 1s 0 0 552.53889 0 85 574.00000 552.53889 3.74% - 1s H 0 0 573.0000000 552.53889 3.57% - 2s 0 2 552.56061 0 85 573.00000 552.56061 3.57% - 2s * 42 39 32 569.0000000 554.50000 2.55% 18.4 2s * 81 50 34 566.0000000 554.55263 2.02% 14.1 2s * 197 101 12 565.0000000 554.82406 1.80% 14.9 3s 663 253 562.83333 46 25 565.00000 557.00000 1.42% 13.2 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 10 Explored 3456 nodes (40573 simplex iterations) in 9.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 17), (3, 30), (6, 39), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 38), (16, 46), (17, 51), (22, 35), (22, 30), (31, 35)] adding cut for [(5, 48), (5, 18), (7, 24), (8, 44), (8, 24), (41, 43), (43, 45), (14, 42), (14, 26), (18, 45), (20, 41), (20, 42), (25, 44), (25, 26)] Optimize a model with 583 rows, 1275 columns and 106765 nonzeros Presolve time: 0.06s Presolved: 583 rows, 1275 columns, 106765 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.41379 0 65 566.00000 551.41379 2.58% - 0s 0 0 551.41379 0 58 566.00000 551.41379 2.58% - 0s 0 0 551.91037 0 63 566.00000 551.91037 2.49% - 0s 0 0 552.05316 0 64 566.00000 552.05316 2.46% - 0s 0 0 552.05949 0 67 566.00000 552.05949 2.46% - 0s 0 0 552.17348 0 75 566.00000 552.17348 2.44% - 0s 0 0 552.31940 0 73 566.00000 552.31940 2.42% - 0s 0 0 552.37693 0 69 566.00000 552.37693 2.41% - 0s 0 0 552.37693 0 73 566.00000 552.37693 2.41% - 0s 0 0 552.38288 0 66 566.00000 552.38288 2.41% - 0s 0 0 552.38519 0 73 566.00000 552.38519 2.41% - 0s 0 0 552.41093 0 73 566.00000 552.41093 2.40% - 0s 0 0 552.41220 0 74 566.00000 552.41220 2.40% - 0s 0 0 552.49239 0 73 566.00000 552.49239 2.39% - 0s 0 0 552.50018 0 76 566.00000 552.50018 2.39% - 0s 0 0 552.54573 0 75 566.00000 552.54573 2.38% - 0s 0 0 552.54786 0 79 566.00000 552.54786 2.38% - 0s 0 0 552.61562 0 78 566.00000 552.61562 2.36% - 1s 0 0 552.64914 0 77 566.00000 552.64914 2.36% - 1s 0 0 552.65403 0 82 566.00000 552.65403 2.36% - 1s 0 0 552.66969 0 84 566.00000 552.66969 2.36% - 1s 0 0 552.71096 0 80 566.00000 552.71096 2.35% - 1s 0 0 552.73320 0 79 566.00000 552.73320 2.34% - 1s 0 0 552.74664 0 83 566.00000 552.74664 2.34% - 1s 0 0 552.75027 0 83 566.00000 552.75027 2.34% - 1s 0 0 552.75630 0 83 566.00000 552.75630 2.34% - 1s 0 0 552.75637 0 83 566.00000 552.75637 2.34% - 1s 0 0 552.76036 0 86 566.00000 552.76036 2.34% - 1s 0 0 552.76081 0 88 566.00000 552.76081 2.34% - 1s 0 2 552.76936 0 88 566.00000 552.76936 2.34% - 2s 619 321 561.33333 15 71 566.00000 556.50000 1.68% 11.8 5s * 847 357 34 565.0000000 556.50000 1.50% 13.2 6s 2996 576 563.65000 24 41 565.00000 559.73973 0.93% 12.0 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 9 Explored 5737 nodes (61660 simplex iterations) in 13.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (9, 23), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 584 rows, 1275 columns and 106996 nonzeros Presolve time: 0.06s Presolved: 584 rows, 1275 columns, 106996 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.41379 0 64 566.00000 551.41379 2.58% - 0s 0 0 551.41379 0 58 566.00000 551.41379 2.58% - 0s 0 0 551.91037 0 63 566.00000 551.91037 2.49% - 0s 0 0 552.05316 0 64 566.00000 552.05316 2.46% - 0s 0 0 552.05949 0 67 566.00000 552.05949 2.46% - 0s 0 0 552.17348 0 75 566.00000 552.17348 2.44% - 0s 0 0 552.31940 0 73 566.00000 552.31940 2.42% - 0s 0 0 552.37693 0 69 566.00000 552.37693 2.41% - 0s 0 0 552.37693 0 73 566.00000 552.37693 2.41% - 0s 0 0 552.38288 0 66 566.00000 552.38288 2.41% - 0s 0 0 552.38519 0 73 566.00000 552.38519 2.41% - 0s 0 0 552.41093 0 73 566.00000 552.41093 2.40% - 0s 0 0 552.41220 0 74 566.00000 552.41220 2.40% - 0s 0 0 552.49239 0 73 566.00000 552.49239 2.39% - 0s 0 0 552.50018 0 76 566.00000 552.50018 2.39% - 0s 0 0 552.54573 0 75 566.00000 552.54573 2.38% - 0s 0 0 552.54786 0 79 566.00000 552.54786 2.38% - 0s 0 0 552.61562 0 78 566.00000 552.61562 2.36% - 0s 0 0 552.64914 0 77 566.00000 552.64914 2.36% - 1s 0 0 552.65403 0 82 566.00000 552.65403 2.36% - 1s 0 0 552.66969 0 84 566.00000 552.66969 2.36% - 1s 0 0 552.71096 0 80 566.00000 552.71096 2.35% - 1s 0 0 552.73320 0 79 566.00000 552.73320 2.34% - 1s 0 0 552.74664 0 83 566.00000 552.74664 2.34% - 1s 0 0 552.75027 0 83 566.00000 552.75027 2.34% - 1s 0 0 552.75648 0 83 566.00000 552.75648 2.34% - 1s 0 0 552.76019 0 85 566.00000 552.76019 2.34% - 1s 0 0 552.76300 0 88 566.00000 552.76300 2.34% - 1s 0 0 552.77042 0 86 566.00000 552.77042 2.34% - 1s 0 0 552.77087 0 88 566.00000 552.77087 2.34% - 1s 0 2 552.77170 0 88 566.00000 552.77170 2.34% - 2s 612 336 564.07692 11 72 566.00000 556.38745 1.70% 12.2 5s * 762 361 40 565.0000000 556.38745 1.52% 13.3 5s 3605 343 562.68551 22 52 565.00000 561.53846 0.61% 11.1 10s Cutting planes: Gomory: 4 MIR: 2 Zero half: 8 Explored 4423 nodes (46986 simplex iterations) in 10.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 17), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 585 rows, 1275 columns and 107149 nonzeros Presolve time: 0.06s Presolved: 585 rows, 1275 columns, 107149 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.80952 2.51% - 0s 0 0 551.41379 0 64 565.00000 551.41379 2.40% - 0s 0 0 551.41379 0 58 565.00000 551.41379 2.40% - 0s 0 0 551.91037 0 63 565.00000 551.91037 2.32% - 0s 0 0 552.01552 0 63 565.00000 552.01552 2.30% - 0s 0 0 552.02147 0 67 565.00000 552.02147 2.30% - 0s 0 0 552.10081 0 76 565.00000 552.10081 2.28% - 0s 0 0 552.13082 0 75 565.00000 552.13082 2.28% - 0s 0 0 552.21370 0 70 565.00000 552.21370 2.26% - 0s 0 0 552.23220 0 78 565.00000 552.23220 2.26% - 0s 0 0 552.27085 0 81 565.00000 552.27085 2.25% - 0s 0 0 552.43548 0 71 565.00000 552.43548 2.22% - 0s 0 0 552.45664 0 70 565.00000 552.45664 2.22% - 0s 0 0 552.47872 0 78 565.00000 552.47872 2.22% - 0s 0 0 552.49916 0 81 565.00000 552.49916 2.21% - 0s 0 0 552.58677 0 74 565.00000 552.58677 2.20% - 0s 0 0 552.59024 0 75 565.00000 552.59024 2.20% - 0s 0 0 552.63955 0 73 565.00000 552.63955 2.19% - 0s 0 0 552.66595 0 78 565.00000 552.66595 2.18% - 0s 0 0 552.66766 0 80 565.00000 552.66766 2.18% - 0s 0 0 552.66852 0 81 565.00000 552.66852 2.18% - 0s 0 0 552.68417 0 77 565.00000 552.68417 2.18% - 0s 0 0 552.68970 0 80 565.00000 552.68970 2.18% - 1s 0 0 552.69266 0 80 565.00000 552.69266 2.18% - 1s 0 0 552.69371 0 79 565.00000 552.69371 2.18% - 1s 0 0 552.69969 0 79 565.00000 552.69969 2.18% - 1s 0 0 552.70104 0 82 565.00000 552.70104 2.18% - 1s 0 0 552.70218 0 84 565.00000 552.70218 2.18% - 1s 0 0 552.70218 0 85 565.00000 552.70218 2.18% - 1s 0 2 552.70585 0 85 565.00000 552.70585 2.18% - 2s 991 357 560.20000 23 57 565.00000 556.57143 1.49% 13.2 5s 4367 57 563.15152 28 47 565.00000 563.00000 0.35% 11.7 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 13 Explored 4436 nodes (52091 simplex iterations) in 10.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 17), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 586 rows, 1275 columns and 107302 nonzeros Presolve time: 0.06s Presolved: 586 rows, 1275 columns, 107302 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 137 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.80952 2.51% - 0s 0 0 551.41379 0 65 565.00000 551.41379 2.40% - 0s 0 0 551.41379 0 58 565.00000 551.41379 2.40% - 0s 0 0 551.91037 0 63 565.00000 551.91037 2.32% - 0s 0 0 552.01552 0 63 565.00000 552.01552 2.30% - 0s 0 0 552.02147 0 67 565.00000 552.02147 2.30% - 0s 0 0 552.10081 0 76 565.00000 552.10081 2.28% - 0s 0 0 552.13082 0 75 565.00000 552.13082 2.28% - 0s 0 0 552.21370 0 70 565.00000 552.21370 2.26% - 0s 0 0 552.23220 0 78 565.00000 552.23220 2.26% - 0s 0 0 552.27085 0 81 565.00000 552.27085 2.25% - 0s 0 0 552.43548 0 71 565.00000 552.43548 2.22% - 0s 0 0 552.45664 0 70 565.00000 552.45664 2.22% - 0s 0 0 552.47872 0 78 565.00000 552.47872 2.22% - 0s 0 0 552.49916 0 81 565.00000 552.49916 2.21% - 0s 0 0 552.58677 0 74 565.00000 552.58677 2.20% - 0s 0 0 552.59024 0 75 565.00000 552.59024 2.20% - 0s 0 0 552.63955 0 73 565.00000 552.63955 2.19% - 0s 0 0 552.66595 0 78 565.00000 552.66595 2.18% - 0s 0 0 552.66766 0 80 565.00000 552.66766 2.18% - 0s 0 0 552.66852 0 82 565.00000 552.66852 2.18% - 0s 0 0 552.68417 0 77 565.00000 552.68417 2.18% - 0s 0 0 552.68970 0 80 565.00000 552.68970 2.18% - 0s 0 0 552.69266 0 80 565.00000 552.69266 2.18% - 1s 0 0 552.69371 0 79 565.00000 552.69371 2.18% - 1s 0 0 552.69969 0 79 565.00000 552.69969 2.18% - 1s 0 0 552.70104 0 82 565.00000 552.70104 2.18% - 1s 0 0 552.70218 0 84 565.00000 552.70218 2.18% - 1s 0 0 552.70218 0 85 565.00000 552.70218 2.18% - 1s 0 2 552.70926 0 85 565.00000 552.70926 2.18% - 2s 953 329 556.80495 18 58 565.00000 556.80495 1.45% 13.3 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 13 Explored 4642 nodes (49614 simplex iterations) in 9.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (6, 16), (9, 23), (9, 27), (11, 40), (11, 50), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 587 rows, 1275 columns and 107533 nonzeros Presolve time: 0.06s Presolved: 587 rows, 1275 columns, 107533 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.80952 2.86% - 0s 0 0 551.34949 0 64 567.00000 551.34949 2.76% - 0s 0 0 551.34949 0 58 567.00000 551.34949 2.76% - 0s 0 0 551.92276 0 64 567.00000 551.92276 2.66% - 0s 0 0 552.06269 0 65 567.00000 552.06269 2.63% - 0s 0 0 552.07035 0 70 567.00000 552.07035 2.63% - 0s 0 0 552.24190 0 71 567.00000 552.24190 2.60% - 0s 0 0 552.25007 0 76 567.00000 552.25007 2.60% - 0s 0 0 552.28493 0 74 567.00000 552.28493 2.60% - 0s 0 0 552.33361 0 80 567.00000 552.33361 2.59% - 0s 0 0 552.34070 0 76 567.00000 552.34070 2.59% - 0s 0 0 552.45761 0 74 567.00000 552.45761 2.56% - 0s 0 0 552.45761 0 77 567.00000 552.45761 2.56% - 0s 0 0 552.52186 0 72 567.00000 552.52186 2.55% - 0s 0 0 552.53532 0 81 567.00000 552.53532 2.55% - 0s 0 0 552.58978 0 74 567.00000 552.58978 2.54% - 0s 0 0 552.60352 0 82 567.00000 552.60352 2.54% - 0s 0 0 552.61891 0 75 567.00000 552.61891 2.54% - 0s 0 0 552.61973 0 86 567.00000 552.61973 2.54% - 0s 0 0 552.63544 0 81 567.00000 552.63544 2.53% - 0s 0 0 552.65740 0 83 567.00000 552.65740 2.53% - 1s 0 0 552.65984 0 87 567.00000 552.65984 2.53% - 1s 0 0 552.65984 0 87 567.00000 552.65984 2.53% - 1s H 0 0 566.0000000 552.65984 2.36% - 1s 0 2 552.69426 0 87 566.00000 552.69426 2.35% - 1s * 301 146 24 565.0000000 555.50301 1.68% 12.8 2s 840 289 559.42105 18 52 565.00000 556.96667 1.42% 13.7 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 12 Explored 3929 nodes (44255 simplex iterations) in 9.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (41, 42), (10, 50), (10, 51), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (20, 41), (20, 43), (14, 19), (14, 42), (43, 45)] adding cut for [(36, 37), (9, 27), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 39)] Optimize a model with 589 rows, 1275 columns and 107795 nonzeros Presolve time: 0.06s Presolved: 589 rows, 1275 columns, 107795 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.80952 3.54% - 0s 0 0 551.34949 0 64 571.00000 551.34949 3.44% - 0s 0 0 551.34949 0 58 571.00000 551.34949 3.44% - 0s 0 0 551.79610 0 66 571.00000 551.79610 3.36% - 0s 0 0 552.00578 0 69 571.00000 552.00578 3.33% - 0s 0 0 552.33571 0 67 571.00000 552.33571 3.27% - 0s 0 0 552.33571 0 71 571.00000 552.33571 3.27% - 0s 0 0 552.35457 0 70 571.00000 552.35457 3.27% - 0s 0 0 552.35457 0 74 571.00000 552.35457 3.27% - 0s 0 0 552.44242 0 67 571.00000 552.44242 3.25% - 0s 0 0 552.44589 0 71 571.00000 552.44589 3.25% - 0s 0 0 552.45001 0 77 571.00000 552.45001 3.25% - 0s 0 0 552.49689 0 77 571.00000 552.49689 3.24% - 0s 0 0 552.49759 0 80 571.00000 552.49759 3.24% - 0s 0 0 552.52324 0 78 571.00000 552.52324 3.24% - 0s 0 0 552.52324 0 81 571.00000 552.52324 3.24% - 1s 0 0 552.53014 0 73 571.00000 552.53014 3.23% - 1s 0 0 552.53014 0 76 571.00000 552.53014 3.23% - 1s 0 0 552.60159 0 81 571.00000 552.60159 3.22% - 1s 0 0 552.77396 0 65 571.00000 552.77396 3.19% - 1s 0 0 552.79487 0 72 571.00000 552.79487 3.19% - 1s 0 0 552.80572 0 73 571.00000 552.80572 3.19% - 1s 0 0 552.83006 0 75 571.00000 552.83006 3.18% - 1s 0 0 552.86702 0 74 571.00000 552.86702 3.18% - 1s 0 0 552.87170 0 75 571.00000 552.87170 3.17% - 1s 0 0 552.87539 0 75 571.00000 552.87539 3.17% - 1s 0 0 552.88428 0 79 571.00000 552.88428 3.17% - 1s 0 0 552.89114 0 80 571.00000 552.89114 3.17% - 1s 0 0 552.90129 0 85 571.00000 552.90129 3.17% - 1s 0 0 552.92618 0 81 571.00000 552.92618 3.17% - 1s 0 0 552.92729 0 80 571.00000 552.92729 3.17% - 1s 0 0 552.92758 0 80 571.00000 552.92758 3.17% - 1s 0 0 552.92794 0 81 571.00000 552.92794 3.16% - 1s 0 0 552.92826 0 83 571.00000 552.92826 3.16% - 1s 0 0 552.92826 0 83 571.00000 552.92826 3.16% - 2s 0 2 552.94080 0 83 571.00000 552.94080 3.16% - 2s H 76 54 568.0000000 554.27225 2.42% 11.3 2s * 163 116 29 567.0000000 554.74702 2.16% 13.0 3s H 301 181 566.0000000 555.37500 1.88% 12.6 3s 611 338 558.02586 7 74 566.00000 556.60000 1.66% 11.6 5s * 1278 414 40 565.0000000 556.60000 1.49% 12.9 7s 2749 545 cutoff 24 565.00000 559.17073 1.03% 12.5 10s Cutting planes: Gomory: 8 MIR: 2 Zero half: 8 Explored 5022 nodes (57380 simplex iterations) in 13.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (5, 48), (5, 14), (41, 42), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (20, 41), (20, 43), (14, 42), (43, 45), (31, 50), (31, 51)] adding cut for [(36, 37), (9, 49), (9, 27), (10, 35), (10, 39), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 591 rows, 1275 columns and 108090 nonzeros Presolve time: 0.06s Presolved: 591 rows, 1275 columns, 108090 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.34949 0 64 566.00000 551.34949 2.59% - 0s 0 0 551.34949 0 58 566.00000 551.34949 2.59% - 0s 0 0 551.75912 0 66 566.00000 551.75912 2.52% - 0s 0 0 552.01630 0 68 566.00000 552.01630 2.47% - 0s 0 0 552.15566 0 67 566.00000 552.15566 2.45% - 0s 0 0 552.15566 0 71 566.00000 552.15566 2.45% - 0s 0 0 552.27872 0 69 566.00000 552.27872 2.42% - 0s 0 0 552.29326 0 76 566.00000 552.29326 2.42% - 0s 0 0 552.35446 0 75 566.00000 552.35446 2.41% - 0s 0 0 552.35446 0 76 566.00000 552.35446 2.41% - 0s 0 0 552.39408 0 79 566.00000 552.39408 2.40% - 0s 0 0 552.43739 0 73 566.00000 552.43739 2.40% - 0s 0 0 552.43739 0 77 566.00000 552.43739 2.40% - 0s 0 0 552.45676 0 82 566.00000 552.45676 2.39% - 0s 0 0 552.47409 0 81 566.00000 552.47409 2.39% - 0s 0 0 552.48090 0 81 566.00000 552.48090 2.39% - 0s 0 0 552.49635 0 83 566.00000 552.49635 2.39% - 0s 0 0 552.50206 0 86 566.00000 552.50206 2.38% - 0s 0 0 552.51040 0 83 566.00000 552.51040 2.38% - 0s 0 0 552.52181 0 86 566.00000 552.52181 2.38% - 0s 0 0 552.52893 0 86 566.00000 552.52893 2.38% - 1s 0 0 552.53441 0 87 566.00000 552.53441 2.38% - 1s 0 0 552.54741 0 78 566.00000 552.54741 2.38% - 1s 0 0 552.55937 0 81 566.00000 552.55937 2.37% - 1s 0 0 552.57556 0 83 566.00000 552.57556 2.37% - 1s 0 0 552.59301 0 86 566.00000 552.59301 2.37% - 1s 0 0 552.66388 0 83 566.00000 552.66388 2.36% - 1s 0 0 552.67165 0 88 566.00000 552.67165 2.35% - 1s 0 0 552.74299 0 80 566.00000 552.74299 2.34% - 1s 0 0 552.82140 0 84 566.00000 552.82140 2.33% - 1s 0 0 552.90864 0 77 566.00000 552.90864 2.31% - 1s 0 0 552.90986 0 79 566.00000 552.90986 2.31% - 1s 0 0 552.92650 0 81 566.00000 552.92650 2.31% - 1s 0 0 552.92846 0 82 566.00000 552.92846 2.31% - 1s 0 0 552.92846 0 81 566.00000 552.92846 2.31% - 1s 0 2 552.93580 0 81 566.00000 552.93580 2.31% - 2s * 328 171 9 565.0000000 555.92857 1.61% 13.3 3s 615 262 558.25957 4 77 565.00000 556.94650 1.43% 12.3 5s 3578 181 564.00000 31 34 565.00000 562.28645 0.48% 11.3 10s Cutting planes: Gomory: 8 MIR: 2 Zero half: 9 Explored 3915 nodes (43308 simplex iterations) in 10.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 39), (6, 50), (9, 23), (9, 27), (10, 50), (10, 22), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (38, 45), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (18, 38), (35, 51), (31, 35)] Optimize a model with 593 rows, 1275 columns and 108301 nonzeros Presolve time: 0.06s Presolved: 593 rows, 1275 columns, 108301 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 64 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.92276 0 64 569.00000 551.92276 3.00% - 0s 0 0 552.06269 0 65 569.00000 552.06269 2.98% - 0s 0 0 552.07035 0 70 569.00000 552.07035 2.98% - 0s 0 0 552.17446 0 69 569.00000 552.17446 2.96% - 0s 0 0 552.18030 0 75 569.00000 552.18030 2.96% - 0s 0 0 552.33418 0 70 569.00000 552.33418 2.93% - 0s 0 0 552.33986 0 75 569.00000 552.33986 2.93% - 0s 0 0 552.40932 0 75 569.00000 552.40932 2.92% - 0s 0 0 552.40932 0 78 569.00000 552.40932 2.92% - 0s 0 0 552.45447 0 81 569.00000 552.45447 2.91% - 0s 0 0 552.45447 0 84 569.00000 552.45447 2.91% - 0s 0 0 552.56187 0 71 569.00000 552.56187 2.89% - 0s 0 0 552.56187 0 75 569.00000 552.56187 2.89% - 0s 0 0 552.56765 0 74 569.00000 552.56765 2.89% - 0s 0 0 552.56765 0 78 569.00000 552.56765 2.89% - 0s 0 0 552.57960 0 73 569.00000 552.57960 2.89% - 1s 0 0 552.58401 0 79 569.00000 552.58401 2.89% - 1s 0 0 552.59839 0 71 569.00000 552.59839 2.88% - 1s 0 0 552.59839 0 75 569.00000 552.59839 2.88% - 1s 0 0 552.64065 0 82 569.00000 552.64065 2.88% - 1s 0 0 552.64258 0 84 569.00000 552.64258 2.87% - 1s 0 0 552.69890 0 79 569.00000 552.69890 2.86% - 1s 0 0 552.69890 0 82 569.00000 552.69890 2.86% - 1s 0 0 552.71290 0 84 569.00000 552.71290 2.86% - 1s 0 0 552.71529 0 87 569.00000 552.71529 2.86% - 1s 0 0 552.75337 0 79 569.00000 552.75337 2.86% - 1s 0 0 552.76237 0 83 569.00000 552.76237 2.85% - 1s 0 0 552.76563 0 84 569.00000 552.76563 2.85% - 1s 0 0 552.76895 0 84 569.00000 552.76895 2.85% - 1s 0 0 552.77029 0 84 569.00000 552.77029 2.85% - 1s 0 0 552.77029 0 84 569.00000 552.77029 2.85% - 2s 0 2 552.77411 0 84 569.00000 552.77411 2.85% - 2s H 27 27 567.0000000 554.16108 2.26% 15.4 2s * 173 115 18 566.0000000 554.41905 2.05% 12.5 3s 612 287 560.23810 14 89 566.00000 556.87500 1.61% 11.8 5s * 1156 326 19 565.0000000 557.69636 1.29% 12.6 6s Cutting planes: Gomory: 2 MIR: 3 Zero half: 15 Explored 3806 nodes (41381 simplex iterations) in 9.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(16, 34), (16, 38), (34, 46), (5, 48), (5, 18), (7, 24), (8, 44), (8, 24), (41, 42), (43, 45), (45, 46), (18, 38), (20, 41), (20, 43), (14, 42), (14, 26), (25, 44), (25, 26)] adding cut for [(3, 17), (3, 30), (6, 50), (10, 39), (10, 51), (11, 40), (11, 50), (17, 51), (22, 35), (22, 30), (31, 35), (31, 40)] Optimize a model with 595 rows, 1275 columns and 108550 nonzeros Presolve time: 0.06s Presolved: 595 rows, 1275 columns, 108550 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.80952 3.03% - 0s 0 0 551.34949 0 65 568.00000 551.34949 2.93% - 0s 0 0 551.34949 0 58 568.00000 551.34949 2.93% - 0s 0 0 551.92276 0 64 568.00000 551.92276 2.83% - 0s 0 0 552.06269 0 65 568.00000 552.06269 2.81% - 0s 0 0 552.07035 0 70 568.00000 552.07035 2.80% - 0s 0 0 552.24190 0 72 568.00000 552.24190 2.77% - 0s 0 0 552.25007 0 76 568.00000 552.25007 2.77% - 0s 0 0 552.28493 0 74 568.00000 552.28493 2.77% - 0s 0 0 552.33361 0 81 568.00000 552.33361 2.76% - 0s 0 0 552.38755 0 74 568.00000 552.38755 2.75% - 0s 0 0 552.46644 0 71 568.00000 552.46644 2.73% - 0s 0 0 552.49266 0 74 568.00000 552.49266 2.73% - 0s 0 0 552.49720 0 75 568.00000 552.49720 2.73% - 0s 0 0 552.49720 0 78 568.00000 552.49720 2.73% - 0s 0 0 552.55322 0 70 568.00000 552.55322 2.72% - 0s 0 0 552.55677 0 75 568.00000 552.55677 2.72% - 0s 0 0 552.57346 0 76 568.00000 552.57346 2.72% - 0s 0 0 552.57346 0 80 568.00000 552.57346 2.72% - 0s 0 0 552.64108 0 72 568.00000 552.64108 2.70% - 1s 0 0 552.64108 0 75 568.00000 552.64108 2.70% - 1s 0 0 552.65332 0 77 568.00000 552.65332 2.70% - 1s 0 0 552.65710 0 76 568.00000 552.65710 2.70% - 1s 0 0 552.66902 0 80 568.00000 552.66902 2.70% - 1s 0 0 552.68485 0 79 568.00000 552.68485 2.70% - 1s 0 0 552.70073 0 82 568.00000 552.70073 2.69% - 1s 0 0 552.85693 0 69 568.00000 552.85693 2.67% - 1s 0 0 552.85693 0 73 568.00000 552.85693 2.67% - 1s 0 0 552.87018 0 74 568.00000 552.87018 2.66% - 1s 0 0 552.87182 0 78 568.00000 552.87182 2.66% - 1s 0 0 552.89643 0 79 568.00000 552.89643 2.66% - 1s 0 0 552.89945 0 79 568.00000 552.89945 2.66% - 1s 0 0 552.90597 0 75 568.00000 552.90597 2.66% - 1s 0 0 552.91062 0 79 568.00000 552.91062 2.66% - 1s 0 0 552.92986 0 82 568.00000 552.92986 2.65% - 1s 0 0 552.93337 0 74 568.00000 552.93337 2.65% - 1s 0 0 552.93574 0 80 568.00000 552.93574 2.65% - 1s 0 0 552.93810 0 84 568.00000 552.93810 2.65% - 1s 0 0 552.95219 0 83 568.00000 552.95219 2.65% - 1s H 0 0 567.0000000 552.95219 2.48% - 2s 0 2 552.95335 0 82 567.00000 552.95335 2.48% - 2s * 105 71 26 566.0000000 554.56924 2.02% 12.2 2s 612 310 560.08824 9 74 566.00000 556.77778 1.63% 11.8 5s * 1435 390 26 565.0000000 557.13478 1.39% 12.4 7s 3365 745 563.00000 25 18 565.00000 559.72727 0.93% 11.4 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 7 Explored 6781 nodes (70889 simplex iterations) in 14.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(5, 14), (5, 18), (6, 39), (6, 50), (10, 50), (10, 51), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 43), (22, 35), (22, 51), (31, 35), (34, 40), (34, 46), (41, 42), (43, 45)] adding cut for [(3, 17), (3, 30), (36, 37), (7, 24), (8, 44), (8, 27), (12, 17), (21, 36), (21, 30), (25, 44), (24, 25), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 597 rows, 1275 columns and 108901 nonzeros Presolve time: 0.06s Presolved: 597 rows, 1275 columns, 108901 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.80952 2.86% - 0s 0 0 551.34949 0 66 567.00000 551.34949 2.76% - 0s 0 0 551.34949 0 58 567.00000 551.34949 2.76% - 0s 0 0 551.92276 0 64 567.00000 551.92276 2.66% - 0s 0 0 552.06269 0 65 567.00000 552.06269 2.63% - 0s 0 0 552.07035 0 70 567.00000 552.07035 2.63% - 0s 0 0 552.24190 0 71 567.00000 552.24190 2.60% - 0s 0 0 552.25007 0 76 567.00000 552.25007 2.60% - 0s 0 0 552.28493 0 74 567.00000 552.28493 2.60% - 0s 0 0 552.33361 0 81 567.00000 552.33361 2.59% - 0s 0 0 552.38755 0 74 567.00000 552.38755 2.58% - 0s 0 0 552.46644 0 71 567.00000 552.46644 2.56% - 0s 0 0 552.49266 0 76 567.00000 552.49266 2.56% - 0s 0 0 552.53225 0 79 567.00000 552.53225 2.55% - 0s 0 0 552.61479 0 77 567.00000 552.61479 2.54% - 0s 0 0 552.66783 0 80 567.00000 552.66783 2.53% - 0s 0 0 552.66973 0 82 567.00000 552.66973 2.53% - 0s 0 0 552.69180 0 83 567.00000 552.69180 2.52% - 0s 0 0 552.69666 0 81 567.00000 552.69666 2.52% - 0s 0 0 552.69972 0 84 567.00000 552.69972 2.52% - 0s 0 0 552.73083 0 79 567.00000 552.73083 2.52% - 0s 0 0 552.73397 0 79 567.00000 552.73397 2.52% - 0s 0 0 552.80723 0 79 567.00000 552.80723 2.50% - 1s 0 0 552.80823 0 82 567.00000 552.80823 2.50% - 1s 0 0 552.87473 0 76 567.00000 552.87473 2.49% - 1s 0 0 552.87544 0 81 567.00000 552.87544 2.49% - 1s 0 0 552.89867 0 84 567.00000 552.89867 2.49% - 1s 0 0 552.90385 0 83 567.00000 552.90385 2.49% - 1s 0 0 552.90385 0 83 567.00000 552.90385 2.49% - 1s 0 2 552.92276 0 83 567.00000 552.92276 2.48% - 1s * 42 30 30 566.0000000 554.25684 2.07% 13.5 2s 620 325 559.22581 16 79 566.00000 556.74074 1.64% 12.1 5s * 760 341 30 565.0000000 556.74074 1.46% 13.3 6s 2975 613 cutoff 32 565.00000 559.33333 1.00% 11.8 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 9 Explored 6130 nodes (68595 simplex iterations) in 14.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (35, 51), (41, 43), (11, 40), (11, 31), (43, 45), (16, 45), (16, 46), (17, 51), (17, 22), (20, 41), (20, 42), (14, 19), (14, 42), (22, 30), (31, 35)] Optimize a model with 598 rows, 1275 columns and 109091 nonzeros Presolve time: 0.06s Presolved: 598 rows, 1275 columns, 109091 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 66 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.17677 0 69 569.00000 552.17677 2.96% - 0s 0 0 552.17677 0 73 569.00000 552.17677 2.96% - 0s 0 0 552.21336 0 72 569.00000 552.21336 2.95% - 0s 0 0 552.23901 0 73 569.00000 552.23901 2.95% - 0s 0 0 552.28565 0 76 569.00000 552.28565 2.94% - 0s 0 0 552.28720 0 77 569.00000 552.28720 2.94% - 0s 0 0 552.28720 0 78 569.00000 552.28720 2.94% - 0s 0 0 552.36055 0 74 569.00000 552.36055 2.92% - 0s 0 0 552.50518 0 76 569.00000 552.50518 2.90% - 0s 0 0 552.51215 0 80 569.00000 552.51215 2.90% - 0s 0 0 552.54328 0 76 569.00000 552.54328 2.89% - 0s 0 0 552.54482 0 80 569.00000 552.54482 2.89% - 1s 0 0 552.55421 0 82 569.00000 552.55421 2.89% - 1s 0 0 552.55531 0 82 569.00000 552.55531 2.89% - 1s 0 0 552.61591 0 76 569.00000 552.61591 2.88% - 1s 0 0 552.61591 0 79 569.00000 552.61591 2.88% - 1s 0 0 552.62322 0 78 569.00000 552.62322 2.88% - 1s 0 0 552.62322 0 81 569.00000 552.62322 2.88% - 1s 0 0 552.74824 0 69 569.00000 552.74824 2.86% - 1s 0 0 552.75324 0 76 569.00000 552.75324 2.86% - 1s 0 0 552.76380 0 74 569.00000 552.76380 2.85% - 1s 0 0 552.76573 0 76 569.00000 552.76573 2.85% - 1s 0 0 552.80903 0 78 569.00000 552.80903 2.85% - 1s 0 0 552.82720 0 78 569.00000 552.82720 2.84% - 1s 0 0 552.85238 0 76 569.00000 552.85238 2.84% - 1s 0 0 552.85438 0 82 569.00000 552.85438 2.84% - 1s 0 0 552.86545 0 81 569.00000 552.86545 2.84% - 1s 0 0 552.88044 0 81 569.00000 552.88044 2.83% - 1s 0 0 552.88315 0 82 569.00000 552.88315 2.83% - 1s 0 0 552.88644 0 84 569.00000 552.88644 2.83% - 1s 0 0 552.89689 0 83 569.00000 552.89689 2.83% - 1s 0 0 552.89704 0 82 569.00000 552.89704 2.83% - 1s 0 0 552.91202 0 81 569.00000 552.91202 2.83% - 1s 0 0 552.91380 0 83 569.00000 552.91380 2.83% - 1s 0 0 552.91380 0 83 569.00000 552.91380 2.83% - 2s 0 2 552.93708 0 83 569.00000 552.93708 2.82% - 2s H 112 57 566.0000000 554.84053 1.97% 10.4 3s * 168 85 21 565.0000000 554.91340 1.79% 11.5 3s 606 288 559.90769 17 84 565.00000 556.87037 1.44% 12.0 5s 2701 570 cutoff 25 565.00000 559.20690 1.03% 12.1 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 8 Explored 5894 nodes (66466 simplex iterations) in 14.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (4, 29), (4, 37), (8, 27), (8, 44), (9, 27), (9, 32), (10, 17), (10, 51), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (24, 49), (25, 44), (29, 32), (35, 51), (36, 37)] Optimize a model with 599 rows, 1275 columns and 109322 nonzeros Presolve time: 0.06s Presolved: 599 rows, 1275 columns, 109322 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.34949 0 65 566.00000 551.34949 2.59% - 0s 0 0 551.34949 0 59 566.00000 551.34949 2.59% - 0s 0 0 551.82619 0 65 566.00000 551.82619 2.50% - 0s 0 0 551.99526 0 68 566.00000 551.99526 2.47% - 0s 0 0 552.21179 0 75 566.00000 552.21179 2.44% - 0s 0 0 552.35637 0 74 566.00000 552.35637 2.41% - 0s 0 0 552.39013 0 74 566.00000 552.39013 2.40% - 0s 0 0 552.43941 0 73 566.00000 552.43941 2.40% - 0s 0 0 552.46145 0 79 566.00000 552.46145 2.39% - 0s 0 0 552.48191 0 72 566.00000 552.48191 2.39% - 0s 0 0 552.48191 0 76 566.00000 552.48191 2.39% - 0s 0 0 552.48191 0 75 566.00000 552.48191 2.39% - 1s 0 2 552.48415 0 75 566.00000 552.48415 2.39% - 1s * 381 168 17 565.0000000 555.60045 1.66% 13.3 2s 1021 290 563.08000 35 48 565.00000 556.87037 1.44% 13.4 5s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Explored 4143 nodes (47513 simplex iterations) in 9.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (5, 19), (5, 14), (39, 50), (41, 43), (11, 40), (11, 50), (16, 45), (16, 46), (17, 39), (20, 41), (20, 42), (14, 42), (43, 45)] adding cut for [(2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 12), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] Optimize a model with 601 rows, 1275 columns and 109611 nonzeros Presolve time: 0.06s Presolved: 601 rows, 1275 columns, 109611 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 66 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.17677 0 69 569.00000 552.17677 2.96% - 0s 0 0 552.17677 0 73 569.00000 552.17677 2.96% - 0s 0 0 552.21336 0 72 569.00000 552.21336 2.95% - 0s 0 0 552.23901 0 73 569.00000 552.23901 2.95% - 0s 0 0 552.28565 0 76 569.00000 552.28565 2.94% - 0s 0 0 552.28720 0 77 569.00000 552.28720 2.94% - 0s 0 0 552.28720 0 78 569.00000 552.28720 2.94% - 0s 0 0 552.36055 0 74 569.00000 552.36055 2.92% - 0s 0 0 552.50518 0 76 569.00000 552.50518 2.90% - 0s 0 0 552.51215 0 80 569.00000 552.51215 2.90% - 0s 0 0 552.54328 0 76 569.00000 552.54328 2.89% - 0s 0 0 552.54482 0 80 569.00000 552.54482 2.89% - 1s 0 0 552.55421 0 82 569.00000 552.55421 2.89% - 1s H 0 0 567.0000000 552.55421 2.55% - 1s 0 0 552.55531 0 82 567.00000 552.55531 2.55% - 1s 0 0 552.61591 0 76 567.00000 552.61591 2.54% - 1s 0 0 552.61591 0 79 567.00000 552.61591 2.54% - 1s 0 0 552.62322 0 78 567.00000 552.62322 2.54% - 1s 0 0 552.62322 0 81 567.00000 552.62322 2.54% - 1s 0 0 552.74824 0 69 567.00000 552.74824 2.51% - 1s 0 0 552.75227 0 76 567.00000 552.75227 2.51% - 1s 0 0 552.76380 0 74 567.00000 552.76380 2.51% - 1s 0 0 552.76573 0 76 567.00000 552.76573 2.51% - 1s 0 0 552.80903 0 78 567.00000 552.80903 2.50% - 1s 0 0 552.82720 0 78 567.00000 552.82720 2.50% - 1s 0 0 552.85238 0 76 567.00000 552.85238 2.50% - 1s 0 0 552.85438 0 82 567.00000 552.85438 2.49% - 1s 0 0 552.86545 0 81 567.00000 552.86545 2.49% - 1s 0 0 552.88044 0 81 567.00000 552.88044 2.49% - 1s 0 0 552.88315 0 82 567.00000 552.88315 2.49% - 1s 0 0 552.88644 0 84 567.00000 552.88644 2.49% - 1s 0 0 552.89689 0 83 567.00000 552.89689 2.49% - 1s 0 0 552.89704 0 82 567.00000 552.89704 2.49% - 1s 0 0 552.91202 0 81 567.00000 552.91202 2.48% - 1s 0 0 552.91380 0 83 567.00000 552.91380 2.48% - 1s 0 0 552.91380 0 83 567.00000 552.91380 2.48% - 2s 0 2 552.93960 0 83 567.00000 552.93960 2.48% - 2s H 89 67 566.0000000 554.77886 1.98% 14.2 3s 614 336 560.00000 11 77 566.00000 556.91180 1.61% 13.0 5s * 1957 542 27 565.0000000 558.33333 1.18% 12.7 8s 2775 653 562.00000 22 51 565.00000 559.40000 0.99% 12.2 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 7 Mod-K: 1 Explored 6033 nodes (65028 simplex iterations) in 14.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 33), (3, 21), (3, 30), (4, 29), (4, 37), (5, 14), (5, 19), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 602 rows, 1275 columns and 110017 nonzeros Presolve time: 0.06s Presolved: 602 rows, 1275 columns, 110017 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 66 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.17677 0 69 569.00000 552.17677 2.96% - 0s 0 0 552.17677 0 73 569.00000 552.17677 2.96% - 0s 0 0 552.21336 0 72 569.00000 552.21336 2.95% - 0s 0 0 552.23901 0 73 569.00000 552.23901 2.95% - 0s 0 0 552.28565 0 76 569.00000 552.28565 2.94% - 0s 0 0 552.28720 0 77 569.00000 552.28720 2.94% - 0s 0 0 552.28720 0 78 569.00000 552.28720 2.94% - 0s 0 0 552.36055 0 74 569.00000 552.36055 2.92% - 0s 0 0 552.50518 0 76 569.00000 552.50518 2.90% - 0s 0 0 552.51215 0 80 569.00000 552.51215 2.90% - 0s 0 0 552.54328 0 76 569.00000 552.54328 2.89% - 1s 0 0 552.54482 0 80 569.00000 552.54482 2.89% - 1s 0 0 552.55421 0 82 569.00000 552.55421 2.89% - 1s H 0 0 567.0000000 552.55421 2.55% - 1s 0 0 552.55531 0 82 567.00000 552.55531 2.55% - 1s 0 0 552.61591 0 76 567.00000 552.61591 2.54% - 1s 0 0 552.61591 0 79 567.00000 552.61591 2.54% - 1s 0 0 552.62322 0 78 567.00000 552.62322 2.54% - 1s 0 0 552.62322 0 81 567.00000 552.62322 2.54% - 1s 0 0 552.74824 0 69 567.00000 552.74824 2.51% - 1s 0 0 552.75227 0 76 567.00000 552.75227 2.51% - 1s 0 0 552.76380 0 74 567.00000 552.76380 2.51% - 1s 0 0 552.76573 0 76 567.00000 552.76573 2.51% - 1s 0 0 552.80903 0 78 567.00000 552.80903 2.50% - 1s 0 0 552.82720 0 78 567.00000 552.82720 2.50% - 1s 0 0 552.85238 0 76 567.00000 552.85238 2.50% - 1s 0 0 552.85438 0 82 567.00000 552.85438 2.49% - 1s 0 0 552.86545 0 81 567.00000 552.86545 2.49% - 1s 0 0 552.88044 0 81 567.00000 552.88044 2.49% - 1s 0 0 552.88315 0 82 567.00000 552.88315 2.49% - 1s 0 0 552.88644 0 84 567.00000 552.88644 2.49% - 1s 0 0 552.89689 0 83 567.00000 552.89689 2.49% - 1s 0 0 552.89704 0 82 567.00000 552.89704 2.49% - 1s 0 0 552.91202 0 81 567.00000 552.91202 2.48% - 1s 0 0 552.91380 0 83 567.00000 552.91380 2.48% - 1s 0 0 552.91380 0 83 567.00000 552.91380 2.48% - 2s 0 2 552.93960 0 83 567.00000 552.93960 2.48% - 2s H 89 67 566.0000000 554.77886 1.98% 14.2 3s 611 334 561.81250 18 75 566.00000 556.91180 1.61% 13.1 5s * 2120 601 35 565.0000000 558.42500 1.16% 12.8 8s 2905 686 563.29167 25 43 565.00000 559.42857 0.99% 12.5 10s 6385 72 563.69231 27 40 565.00000 563.50000 0.27% 11.3 15s Cutting planes: Gomory: 6 MIR: 3 Zero half: 9 Explored 6477 nodes (73311 simplex iterations) in 15.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (10, 35), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (6, 50), (31, 35)] adding cut for [(3, 4), (3, 12), (4, 37), (17, 39), (17, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37)] Optimize a model with 604 rows, 1275 columns and 110163 nonzeros Presolve time: 0.06s Presolved: 604 rows, 1275 columns, 110163 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.80952 3.37% - 0s 0 0 551.34949 0 66 570.00000 551.34949 3.27% - 0s 0 0 551.34949 0 58 570.00000 551.34949 3.27% - 0s 0 0 551.79610 0 66 570.00000 551.79610 3.19% - 0s 0 0 552.00578 0 65 570.00000 552.00578 3.16% - 0s 0 0 552.06007 0 67 570.00000 552.06007 3.15% - 0s 0 0 552.07088 0 69 570.00000 552.07088 3.15% - 0s 0 0 552.22698 0 77 570.00000 552.22698 3.12% - 0s 0 0 552.35308 0 76 570.00000 552.35308 3.10% - 0s 0 0 552.50173 0 75 570.00000 552.50173 3.07% - 0s 0 0 552.50173 0 78 570.00000 552.50173 3.07% - 0s 0 0 552.51102 0 77 570.00000 552.51102 3.07% - 0s 0 0 552.51102 0 80 570.00000 552.51102 3.07% - 0s 0 0 552.55878 0 74 570.00000 552.55878 3.06% - 0s 0 0 552.55878 0 77 570.00000 552.55878 3.06% - 1s 0 0 552.57475 0 74 570.00000 552.57475 3.06% - 1s 0 0 552.57475 0 77 570.00000 552.57475 3.06% - 1s 0 0 552.64676 0 70 570.00000 552.64676 3.04% - 1s 0 0 552.64869 0 73 570.00000 552.64869 3.04% - 1s 0 0 552.66983 0 75 570.00000 552.66983 3.04% - 1s H 0 0 566.0000000 552.66983 2.36% - 1s 0 0 552.66983 0 78 566.00000 552.66983 2.36% - 1s 0 2 552.96643 0 78 566.00000 552.96643 2.30% - 1s 674 302 558.57778 19 53 566.00000 557.18750 1.56% 13.0 5s * 974 380 38 565.0000000 557.60000 1.31% 12.6 5s 3915 274 563.40000 25 47 565.00000 562.06667 0.52% 11.2 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 7 Explored 4478 nodes (48358 simplex iterations) in 10.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (41, 43), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 51), (35, 51), (20, 41), (20, 42), (14, 19), (14, 42), (43, 45), (31, 50), (31, 35)] adding cut for [(36, 37), (9, 27), (10, 39), (10, 22), (12, 39), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 606 rows, 1275 columns and 110431 nonzeros Presolve time: 0.06s Presolved: 606 rows, 1275 columns, 110431 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.80952 3.54% - 0s 0 0 551.34949 0 66 571.00000 551.34949 3.44% - 0s 0 0 551.34949 0 58 571.00000 551.34949 3.44% - 0s 0 0 551.79610 0 66 571.00000 551.79610 3.36% - 0s 0 0 552.00578 0 65 571.00000 552.00578 3.33% - 0s 0 0 552.03115 0 70 571.00000 552.03115 3.32% - 0s 0 0 552.16117 0 70 571.00000 552.16117 3.30% - 0s 0 0 552.16135 0 71 571.00000 552.16135 3.30% - 0s 0 0 552.38017 0 72 571.00000 552.38017 3.26% - 0s 0 0 552.38017 0 76 571.00000 552.38017 3.26% - 0s 0 0 552.40548 0 74 571.00000 552.40548 3.26% - 0s 0 0 552.40548 0 77 571.00000 552.40548 3.26% - 0s 0 0 552.50156 0 73 571.00000 552.50156 3.24% - 0s 0 0 552.50156 0 77 571.00000 552.50156 3.24% - 0s 0 0 552.50315 0 74 571.00000 552.50315 3.24% - 1s 0 0 552.50361 0 82 571.00000 552.50361 3.24% - 1s 0 0 552.54218 0 77 571.00000 552.54218 3.23% - 1s 0 0 552.57142 0 77 571.00000 552.57142 3.23% - 1s 0 0 552.57388 0 79 571.00000 552.57388 3.23% - 1s 0 0 552.59594 0 79 571.00000 552.59594 3.22% - 1s 0 0 552.59594 0 82 571.00000 552.59594 3.22% - 1s 0 0 552.67372 0 79 571.00000 552.67372 3.21% - 1s 0 0 552.68073 0 83 571.00000 552.68073 3.21% - 1s 0 0 552.79984 0 80 571.00000 552.79984 3.19% - 1s 0 0 552.80668 0 84 571.00000 552.80668 3.19% - 1s 0 0 552.81682 0 85 571.00000 552.81682 3.18% - 1s 0 0 552.83261 0 82 571.00000 552.83261 3.18% - 1s 0 0 552.83657 0 82 571.00000 552.83657 3.18% - 1s 0 0 552.83978 0 85 571.00000 552.83978 3.18% - 1s 0 0 552.84220 0 87 571.00000 552.84220 3.18% - 1s 0 0 552.87621 0 71 571.00000 552.87621 3.17% - 1s 0 0 552.88098 0 80 571.00000 552.88098 3.17% - 1s 0 0 552.88613 0 79 571.00000 552.88613 3.17% - 1s 0 0 552.88852 0 80 571.00000 552.88852 3.17% - 1s 0 0 552.88852 0 80 571.00000 552.88852 3.17% - 2s H 0 0 569.0000000 552.88852 2.83% - 2s 0 2 552.89101 0 80 569.00000 552.89101 2.83% - 2s * 65 46 17 567.0000000 553.97490 2.30% 15.4 2s * 147 88 26 566.0000000 554.73164 1.99% 12.7 3s 611 307 564.03030 15 79 566.00000 556.82143 1.62% 11.8 5s * 878 349 28 565.0000000 556.82143 1.45% 12.7 7s 2801 422 cutoff 29 565.00000 560.45946 0.80% 11.6 10s Cutting planes: Gomory: 10 MIR: 3 Zero half: 7 Explored 4486 nodes (48111 simplex iterations) in 11.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (5, 19), (5, 14), (41, 42), (10, 17), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (20, 41), (20, 43), (14, 42), (43, 45)] adding cut for [(2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35), (31, 39)] Optimize a model with 608 rows, 1275 columns and 110720 nonzeros Presolve time: 0.06s Presolved: 608 rows, 1275 columns, 110720 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 66 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.18381 0 70 569.00000 552.18381 2.96% - 0s 0 0 552.18381 0 74 569.00000 552.18381 2.96% - 0s 0 0 552.25702 0 72 569.00000 552.25702 2.94% - 0s 0 0 552.26055 0 76 569.00000 552.26055 2.94% - 0s 0 0 552.29655 0 78 569.00000 552.29655 2.94% - 0s 0 0 552.30771 0 77 569.00000 552.30771 2.93% - 0s 0 0 552.30877 0 81 569.00000 552.30877 2.93% - 0s 0 0 552.41743 0 77 569.00000 552.41743 2.91% - 0s 0 0 552.55908 0 70 569.00000 552.55908 2.89% - 0s 0 0 552.55908 0 73 569.00000 552.55908 2.89% - 0s 0 0 552.56119 0 73 569.00000 552.56119 2.89% - 1s 0 0 552.56119 0 76 569.00000 552.56119 2.89% - 1s 0 0 552.56119 0 76 569.00000 552.56119 2.89% - 1s H 0 0 567.0000000 552.56119 2.55% - 1s 0 2 552.58352 0 76 567.00000 552.58352 2.54% - 1s * 32 23 23 566.0000000 554.40000 2.05% 17.1 1s 799 348 562.05882 22 46 566.00000 556.80769 1.62% 14.0 5s * 1767 412 25 565.0000000 557.63333 1.30% 12.9 6s 4135 447 564.00000 22 18 565.00000 561.00000 0.71% 12.3 10s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 5472 nodes (63834 simplex iterations) in 11.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (35, 51), (4, 37), (4, 29), (11, 40), (11, 50), (34, 40), (34, 46), (16, 38), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35), (31, 50)] Optimize a model with 609 rows, 1275 columns and 110930 nonzeros Presolve time: 0.06s Presolved: 609 rows, 1275 columns, 110930 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 565.0000000 550.80952 2.51% - 0s 0 0 551.34949 0 66 565.00000 551.34949 2.42% - 0s 0 0 551.34949 0 58 565.00000 551.34949 2.42% - 0s 0 0 551.91037 0 63 565.00000 551.91037 2.32% - 0s 0 0 552.01552 0 63 565.00000 552.01552 2.30% - 0s 0 0 552.02147 0 67 565.00000 552.02147 2.30% - 0s 0 0 552.10081 0 76 565.00000 552.10081 2.28% - 0s 0 0 552.13082 0 75 565.00000 552.13082 2.28% - 0s 0 0 552.21370 0 70 565.00000 552.21370 2.26% - 0s 0 0 552.23220 0 78 565.00000 552.23220 2.26% - 0s 0 0 552.27085 0 81 565.00000 552.27085 2.25% - 0s 0 0 552.43548 0 71 565.00000 552.43548 2.22% - 0s 0 0 552.45664 0 70 565.00000 552.45664 2.22% - 0s 0 0 552.47872 0 78 565.00000 552.47872 2.22% - 0s 0 0 552.49916 0 81 565.00000 552.49916 2.21% - 0s 0 0 552.58677 0 74 565.00000 552.58677 2.20% - 0s 0 0 552.59024 0 75 565.00000 552.59024 2.20% - 0s 0 0 552.63955 0 74 565.00000 552.63955 2.19% - 0s 0 0 552.66595 0 80 565.00000 552.66595 2.18% - 0s 0 0 552.66766 0 80 565.00000 552.66766 2.18% - 0s 0 0 552.66852 0 82 565.00000 552.66852 2.18% - 1s 0 0 552.68280 0 82 565.00000 552.68280 2.18% - 1s 0 0 552.68713 0 78 565.00000 552.68713 2.18% - 1s 0 0 552.68922 0 82 565.00000 552.68922 2.18% - 1s 0 2 552.73085 0 82 565.00000 552.73085 2.17% - 1s 928 301 cutoff 28 565.00000 556.63636 1.48% 13.4 5s 4557 482 cutoff 27 565.00000 560.92857 0.72% 11.6 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 11 Explored 6123 nodes (66684 simplex iterations) in 11.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (35, 51), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 38), (21, 36), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 610 rows, 1275 columns and 111140 nonzeros Presolve time: 0.06s Presolved: 610 rows, 1275 columns, 111140 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 65 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.18381 0 70 569.00000 552.18381 2.96% - 0s 0 0 552.18381 0 74 569.00000 552.18381 2.96% - 0s 0 0 552.25702 0 72 569.00000 552.25702 2.94% - 0s 0 0 552.26055 0 76 569.00000 552.26055 2.94% - 0s 0 0 552.29655 0 78 569.00000 552.29655 2.94% - 0s 0 0 552.30771 0 77 569.00000 552.30771 2.93% - 0s 0 0 552.30877 0 81 569.00000 552.30877 2.93% - 0s 0 0 552.41743 0 77 569.00000 552.41743 2.91% - 0s 0 0 552.55908 0 70 569.00000 552.55908 2.89% - 0s 0 0 552.55908 0 73 569.00000 552.55908 2.89% - 0s 0 0 552.56119 0 73 569.00000 552.56119 2.89% - 0s 0 0 552.56119 0 76 569.00000 552.56119 2.89% - 1s 0 0 552.56119 0 76 569.00000 552.56119 2.89% - 1s 0 2 552.57375 0 76 569.00000 552.57375 2.89% - 1s H 105 64 568.0000000 554.50000 2.38% 13.2 2s * 183 95 24 566.0000000 554.87640 1.97% 12.4 2s * 460 206 24 565.0000000 556.35052 1.53% 12.8 2s 914 283 562.06468 23 49 565.00000 556.88235 1.44% 13.6 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 3626 nodes (41505 simplex iterations) in 8.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(36, 37), (39, 50), (9, 27), (10, 50), (10, 22), (12, 39), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(2, 23), (3, 17), (3, 23), (6, 16), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (17, 51), (35, 51), (31, 35)] Optimize a model with 612 rows, 1275 columns and 111309 nonzeros Presolve time: 0.06s Presolved: 612 rows, 1275 columns, 111309 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 66 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79658 0 65 569.00000 551.79658 3.02% - 0s 0 0 552.03371 0 65 569.00000 552.03371 2.98% - 0s 0 0 552.06733 0 68 569.00000 552.06733 2.98% - 0s 0 0 552.18381 0 70 569.00000 552.18381 2.96% - 0s 0 0 552.18381 0 74 569.00000 552.18381 2.96% - 0s 0 0 552.25702 0 72 569.00000 552.25702 2.94% - 0s 0 0 552.26055 0 76 569.00000 552.26055 2.94% - 0s 0 0 552.29655 0 78 569.00000 552.29655 2.94% - 0s 0 0 552.30771 0 77 569.00000 552.30771 2.93% - 0s 0 0 552.30877 0 81 569.00000 552.30877 2.93% - 0s 0 0 552.41743 0 77 569.00000 552.41743 2.91% - 0s 0 0 552.55908 0 70 569.00000 552.55908 2.89% - 0s 0 0 552.55908 0 74 569.00000 552.55908 2.89% - 0s 0 0 552.58264 0 75 569.00000 552.58264 2.89% - 0s 0 0 552.58339 0 79 569.00000 552.58339 2.89% - 1s 0 0 552.59442 0 78 569.00000 552.59442 2.88% - 1s 0 0 552.59442 0 81 569.00000 552.59442 2.88% - 1s 0 0 552.59674 0 80 569.00000 552.59674 2.88% - 1s 0 0 552.59726 0 84 569.00000 552.59726 2.88% - 1s 0 0 552.60191 0 76 569.00000 552.60191 2.88% - 1s 0 0 552.61790 0 77 569.00000 552.61790 2.88% - 1s 0 0 552.71856 0 71 569.00000 552.71856 2.86% - 1s 0 0 552.74273 0 78 569.00000 552.74273 2.86% - 1s 0 0 552.81027 0 74 569.00000 552.81027 2.85% - 1s 0 0 552.81027 0 77 569.00000 552.81027 2.85% - 1s 0 0 552.82059 0 77 569.00000 552.82059 2.84% - 1s H 0 0 568.0000000 552.82059 2.67% - 1s 0 0 552.82311 0 80 568.00000 552.82311 2.67% - 1s 0 0 552.84500 0 82 568.00000 552.84500 2.67% - 1s 0 0 552.85628 0 82 568.00000 552.85628 2.67% - 1s 0 0 552.86660 0 82 568.00000 552.86660 2.66% - 1s 0 0 552.86850 0 84 568.00000 552.86850 2.66% - 1s 0 0 552.87783 0 84 568.00000 552.87783 2.66% - 1s 0 0 552.87792 0 85 568.00000 552.87792 2.66% - 1s 0 0 552.91107 0 78 568.00000 552.91107 2.66% - 1s 0 0 552.91111 0 79 568.00000 552.91111 2.66% - 1s 0 0 552.91684 0 83 568.00000 552.91684 2.66% - 1s 0 0 552.92221 0 84 568.00000 552.92221 2.65% - 2s 0 0 552.92272 0 83 568.00000 552.92272 2.65% - 2s 0 0 552.92451 0 85 568.00000 552.92451 2.65% - 2s 0 0 552.92797 0 87 568.00000 552.92797 2.65% - 2s 0 0 552.92797 0 86 568.00000 552.92797 2.65% - 2s 0 2 552.93230 0 86 568.00000 552.93230 2.65% - 3s * 356 220 34 567.0000000 555.53333 2.02% 11.9 3s H 598 343 566.0000000 556.40000 1.70% 12.0 4s 701 394 561.73810 9 66 566.00000 556.66667 1.65% 11.9 5s * 1720 454 25 565.0000000 557.20408 1.38% 12.6 8s 2486 557 561.44444 24 51 565.00000 558.62500 1.13% 12.2 10s Cutting planes: Gomory: 10 MIR: 3 Zero half: 7 Explored 5540 nodes (62550 simplex iterations) in 14.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 613 rows, 1275 columns and 111480 nonzeros Presolve time: 0.06s Presolved: 613 rows, 1275 columns, 111480 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.34949 0 66 566.00000 551.34949 2.59% - 0s 0 0 551.34949 0 58 566.00000 551.34949 2.59% - 0s 0 0 551.91037 0 63 566.00000 551.91037 2.49% - 0s 0 0 552.05316 0 64 566.00000 552.05316 2.46% - 0s 0 0 552.05949 0 67 566.00000 552.05949 2.46% - 0s 0 0 552.17348 0 75 566.00000 552.17348 2.44% - 0s 0 0 552.31940 0 73 566.00000 552.31940 2.42% - 0s 0 0 552.37693 0 69 566.00000 552.37693 2.41% - 0s 0 0 552.37693 0 73 566.00000 552.37693 2.41% - 0s 0 0 552.38288 0 66 566.00000 552.38288 2.41% - 0s 0 0 552.38519 0 73 566.00000 552.38519 2.41% - 0s 0 0 552.41093 0 74 566.00000 552.41093 2.40% - 0s 0 0 552.41220 0 75 566.00000 552.41220 2.40% - 0s 0 0 552.50000 0 73 566.00000 552.50000 2.39% - 0s 0 0 552.50601 0 79 566.00000 552.50601 2.38% - 0s 0 0 552.51814 0 81 566.00000 552.51814 2.38% - 0s 0 0 552.55031 0 79 566.00000 552.55031 2.38% - 0s 0 0 552.58225 0 80 566.00000 552.58225 2.37% - 1s 0 0 552.60599 0 80 566.00000 552.60599 2.37% - 1s 0 0 552.62998 0 85 566.00000 552.62998 2.36% - 1s 0 0 552.63595 0 81 566.00000 552.63595 2.36% - 1s 0 0 552.65839 0 84 566.00000 552.65839 2.36% - 1s 0 2 552.66848 0 84 566.00000 552.66848 2.36% - 1s 631 323 559.00000 18 52 566.00000 556.29070 1.72% 13.4 5s * 1998 497 24 565.0000000 558.05556 1.23% 12.3 7s 3487 626 563.40000 33 26 565.00000 560.30435 0.83% 11.8 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 9 Explored 5791 nodes (62849 simplex iterations) in 12.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (11, 31), (11, 40), (15, 26), (16, 38), (16, 46), (21, 36), (22, 30), (22, 51), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 614 rows, 1275 columns and 111780 nonzeros Presolve time: 0.06s Presolved: 614 rows, 1275 columns, 111780 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.80952 3.03% - 0s 0 0 551.34949 0 66 568.00000 551.34949 2.93% - 0s 0 0 551.34949 0 58 568.00000 551.34949 2.93% - 0s 0 0 551.92276 0 64 568.00000 551.92276 2.83% - 0s 0 0 552.06269 0 65 568.00000 552.06269 2.81% - 0s 0 0 552.07035 0 70 568.00000 552.07035 2.80% - 0s 0 0 552.24190 0 72 568.00000 552.24190 2.77% - 0s 0 0 552.25007 0 76 568.00000 552.25007 2.77% - 0s 0 0 552.28493 0 74 568.00000 552.28493 2.77% - 0s 0 0 552.33361 0 81 568.00000 552.33361 2.76% - 0s 0 0 552.38755 0 74 568.00000 552.38755 2.75% - 0s 0 0 552.46644 0 71 568.00000 552.46644 2.73% - 0s 0 0 552.49266 0 76 568.00000 552.49266 2.73% - 0s 0 0 552.53225 0 75 568.00000 552.53225 2.72% - 0s 0 0 552.55277 0 80 568.00000 552.55277 2.72% - 0s 0 0 552.61479 0 74 568.00000 552.61479 2.71% - 0s 0 0 552.61479 0 77 568.00000 552.61479 2.71% - 0s 0 0 552.66783 0 76 568.00000 552.66783 2.70% - 0s 0 0 552.66783 0 79 568.00000 552.66783 2.70% - 0s 0 0 552.66973 0 78 568.00000 552.66973 2.70% - 1s 0 0 552.66973 0 81 568.00000 552.66973 2.70% - 1s 0 0 552.69180 0 82 568.00000 552.69180 2.70% - 1s 0 0 552.69666 0 80 568.00000 552.69666 2.69% - 1s 0 0 552.69972 0 83 568.00000 552.69972 2.69% - 1s 0 0 552.71904 0 82 568.00000 552.71904 2.69% - 1s 0 0 552.86570 0 78 568.00000 552.86570 2.66% - 1s 0 0 552.90558 0 74 568.00000 552.90558 2.66% - 1s 0 0 552.90596 0 77 568.00000 552.90596 2.66% - 1s 0 0 552.91880 0 78 568.00000 552.91880 2.66% - 1s 0 0 552.92235 0 83 568.00000 552.92235 2.65% - 1s H 0 0 566.0000000 552.92235 2.31% - 1s 0 2 552.92569 0 83 566.00000 552.92569 2.31% - 2s 619 318 559.78431 9 88 566.00000 556.81579 1.62% 11.9 5s * 1268 334 27 565.0000000 556.93810 1.43% 13.0 6s 3131 331 562.72222 20 48 565.00000 561.00000 0.71% 12.2 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 11 Explored 4050 nodes (47104 simplex iterations) in 11.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (9, 49), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 615 rows, 1275 columns and 111970 nonzeros Presolve time: 0.06s Presolved: 615 rows, 1275 columns, 111970 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.80952 2.68% - 0s 0 0 551.34949 0 66 566.00000 551.34949 2.59% - 0s 0 0 551.34949 0 59 566.00000 551.34949 2.59% - 0s 0 0 551.82619 0 65 566.00000 551.82619 2.50% - 0s 0 0 551.99526 0 64 566.00000 551.99526 2.47% - 0s 0 0 552.00429 0 68 566.00000 552.00429 2.47% - 0s 0 0 552.31573 0 72 566.00000 552.31573 2.42% - 0s 0 0 552.33114 0 75 566.00000 552.33114 2.41% - 0s 0 0 552.35235 0 75 566.00000 552.35235 2.41% - 0s 0 0 552.39532 0 74 566.00000 552.39532 2.40% - 0s 0 0 552.39781 0 75 566.00000 552.39781 2.40% - 0s 0 0 552.43889 0 73 566.00000 552.43889 2.40% - 0s 0 0 552.43889 0 77 566.00000 552.43889 2.40% - 0s 0 0 552.44606 0 77 566.00000 552.44606 2.39% - 0s 0 0 552.44606 0 80 566.00000 552.44606 2.39% - 0s 0 0 552.48258 0 77 566.00000 552.48258 2.39% - 0s 0 0 552.48624 0 77 566.00000 552.48624 2.39% - 0s 0 0 552.50144 0 82 566.00000 552.50144 2.38% - 0s 0 0 552.56528 0 80 566.00000 552.56528 2.37% - 0s 0 0 552.60070 0 80 566.00000 552.60070 2.37% - 0s 0 0 552.60327 0 82 566.00000 552.60327 2.37% - 0s 0 0 552.60844 0 80 566.00000 552.60844 2.37% - 1s 0 2 552.60941 0 79 566.00000 552.60941 2.37% - 1s 738 334 564.14103 31 51 566.00000 556.42857 1.69% 13.8 5s * 2852 577 38 565.0000000 559.80000 0.92% 12.1 8s 3957 524 563.09524 28 51 565.00000 561.00000 0.71% 11.8 10s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Explored 5332 nodes (60186 simplex iterations) in 11.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (41, 42), (10, 39), (10, 51), (11, 40), (11, 50), (12, 39), (16, 45), (16, 46), (43, 45), (20, 41), (20, 43), (14, 19), (14, 42), (22, 35), (22, 51), (31, 35), (31, 50)] adding cut for [(2, 23), (3, 17), (3, 23), (36, 37), (9, 27), (17, 30), (21, 36), (21, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 617 rows, 1275 columns and 112238 nonzeros Presolve time: 0.06s Presolved: 617 rows, 1275 columns, 112238 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.80952 3.54% - 0s 0 0 551.34949 0 65 571.00000 551.34949 3.44% - 0s 0 0 551.34949 0 58 571.00000 551.34949 3.44% - 0s 0 0 551.79610 0 66 571.00000 551.79610 3.36% - 0s 0 0 552.00578 0 65 571.00000 552.00578 3.33% - 0s 0 0 552.03115 0 70 571.00000 552.03115 3.32% - 0s 0 0 552.16117 0 70 571.00000 552.16117 3.30% - 0s 0 0 552.16135 0 71 571.00000 552.16135 3.30% - 0s 0 0 552.38017 0 72 571.00000 552.38017 3.26% - 0s 0 0 552.38017 0 76 571.00000 552.38017 3.26% - 0s 0 0 552.40548 0 74 571.00000 552.40548 3.26% - 0s 0 0 552.40548 0 77 571.00000 552.40548 3.26% - 0s 0 0 552.50156 0 73 571.00000 552.50156 3.24% - 0s 0 0 552.50156 0 77 571.00000 552.50156 3.24% - 1s 0 0 552.50315 0 74 571.00000 552.50315 3.24% - 1s 0 0 552.50361 0 82 571.00000 552.50361 3.24% - 1s 0 0 552.54218 0 77 571.00000 552.54218 3.23% - 1s H 0 0 566.0000000 552.54218 2.38% - 1s 0 0 552.57142 0 77 566.00000 552.57142 2.37% - 1s 0 2 552.97084 0 77 566.00000 552.97084 2.30% - 1s 51 38 557.11566 22 55 566.00000 554.62500 2.01% 20.4 5s * 2366 526 28 565.0000000 560.25000 0.84% 12.8 9s 2750 479 563.66667 20 51 565.00000 560.93333 0.72% 12.6 10s Cutting planes: Gomory: 6 MIR: 9 Zero half: 26 Explored 4107 nodes (47816 simplex iterations) in 11.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(5, 14), (5, 19), (10, 31), (10, 39), (11, 40), (11, 50), (12, 17), (14, 42), (16, 45), (16, 46), (17, 51), (20, 41), (20, 42), (22, 35), (22, 51), (31, 35), (34, 40), (34, 46), (39, 50), (41, 43), (43, 45)] Optimize a model with 618 rows, 1275 columns and 112469 nonzeros Presolve time: 0.06s Presolved: 618 rows, 1275 columns, 112469 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.80952 3.20% - 0s 0 0 551.34949 0 65 569.00000 551.34949 3.10% - 0s 0 0 551.34949 0 58 569.00000 551.34949 3.10% - 0s 0 0 551.79610 0 66 569.00000 551.79610 3.02% - 0s 0 0 552.00578 0 65 569.00000 552.00578 2.99% - 0s 0 0 552.06007 0 67 569.00000 552.06007 2.98% - 0s 0 0 552.07088 0 69 569.00000 552.07088 2.98% - 0s 0 0 552.22432 0 75 569.00000 552.22432 2.95% - 0s 0 0 552.29625 0 69 569.00000 552.29625 2.94% - 0s 0 0 552.29984 0 74 569.00000 552.29984 2.94% - 0s 0 0 552.30029 0 76 569.00000 552.30029 2.93% - 0s 0 0 552.34127 0 76 569.00000 552.34127 2.93% - 0s 0 0 552.35578 0 78 569.00000 552.35578 2.93% - 0s 0 0 552.40913 0 82 569.00000 552.40913 2.92% - 0s 0 0 552.42068 0 80 569.00000 552.42068 2.91% - 0s 0 0 552.43920 0 80 569.00000 552.43920 2.91% - 0s 0 0 552.63206 0 82 569.00000 552.63206 2.88% - 0s 0 0 552.77727 0 71 569.00000 552.77727 2.85% - 0s 0 0 552.79625 0 77 569.00000 552.79625 2.85% - 1s 0 0 552.81349 0 76 569.00000 552.81349 2.84% - 1s 0 0 552.81349 0 80 569.00000 552.81349 2.84% - 1s 0 0 552.83975 0 74 569.00000 552.83975 2.84% - 1s 0 0 552.84349 0 78 569.00000 552.84349 2.84% - 1s 0 0 552.86037 0 81 569.00000 552.86037 2.84% - 1s 0 0 552.86085 0 84 569.00000 552.86085 2.84% - 1s 0 0 552.86148 0 83 569.00000 552.86148 2.84% - 1s 0 0 552.86214 0 86 569.00000 552.86214 2.84% - 1s H 0 0 567.0000000 552.86214 2.49% - 1s 0 0 552.86626 0 83 567.00000 552.86626 2.49% - 1s 0 0 552.88819 0 86 567.00000 552.88819 2.49% - 1s 0 0 552.89528 0 81 567.00000 552.89528 2.49% - 1s 0 0 552.89528 0 84 567.00000 552.89528 2.49% - 1s 0 0 552.90104 0 79 567.00000 552.90104 2.49% - 1s 0 0 552.90104 0 82 567.00000 552.90104 2.49% - 1s 0 0 552.90287 0 83 567.00000 552.90287 2.49% - 1s 0 0 552.90376 0 85 567.00000 552.90376 2.49% - 1s 0 2 552.91028 0 85 567.00000 552.91028 2.48% - 2s * 155 89 24 566.0000000 554.50000 2.03% 12.6 2s H 600 298 565.0000000 556.66515 1.48% 12.5 3s 613 306 558.16931 9 75 565.00000 556.66515 1.48% 12.2 5s 3213 391 561.00000 23 39 565.00000 561.00000 0.71% 11.6 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 5 Explored 4232 nodes (46682 simplex iterations) in 11.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 18), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (22, 51), (22, 35), (6, 50), (10, 51), (10, 50), (31, 35)] adding cut for [(3, 17), (3, 30), (36, 37), (8, 44), (8, 27), (7, 24), (17, 39), (21, 36), (21, 30), (25, 44), (24, 25), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 620 rows, 1275 columns and 112799 nonzeros Presolve time: 0.06s Presolved: 620 rows, 1275 columns, 112799 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.80952 3.54% - 0s 0 0 551.34949 0 66 571.00000 551.34949 3.44% - 0s 0 0 551.34949 0 58 571.00000 551.34949 3.44% - 0s 0 0 551.79610 0 66 571.00000 551.79610 3.36% - 0s 0 0 552.00578 0 65 571.00000 552.00578 3.33% - 0s 0 0 552.03115 0 70 571.00000 552.03115 3.32% - 0s 0 0 552.16117 0 70 571.00000 552.16117 3.30% - 0s 0 0 552.16135 0 71 571.00000 552.16135 3.30% - 0s 0 0 552.38017 0 72 571.00000 552.38017 3.26% - 0s 0 0 552.38017 0 76 571.00000 552.38017 3.26% - 0s 0 0 552.40548 0 74 571.00000 552.40548 3.26% - 0s 0 0 552.40548 0 77 571.00000 552.40548 3.26% - 0s 0 0 552.50156 0 73 571.00000 552.50156 3.24% - 1s 0 0 552.50156 0 77 571.00000 552.50156 3.24% - 1s 0 0 552.50315 0 74 571.00000 552.50315 3.24% - 1s 0 0 552.50361 0 82 571.00000 552.50361 3.24% - 1s 0 0 552.54485 0 78 571.00000 552.54485 3.23% - 1s 0 0 552.59992 0 75 571.00000 552.59992 3.22% - 1s 0 0 552.59992 0 78 571.00000 552.59992 3.22% - 1s 0 0 552.62095 0 78 571.00000 552.62095 3.22% - 1s H 0 0 569.0000000 552.62095 2.88% - 1s 0 0 552.62455 0 84 569.00000 552.62455 2.88% - 1s 0 0 552.66323 0 83 569.00000 552.66323 2.87% - 1s 0 0 552.68441 0 82 569.00000 552.68441 2.87% - 1s 0 0 552.68732 0 83 569.00000 552.68732 2.87% - 1s 0 0 552.69193 0 83 569.00000 552.69193 2.87% - 1s 0 0 552.69955 0 88 569.00000 552.69955 2.86% - 1s 0 0 552.70593 0 83 569.00000 552.70593 2.86% - 1s 0 0 552.70593 0 83 569.00000 552.70593 2.86% - 1s 0 2 552.70854 0 83 569.00000 552.70854 2.86% - 2s * 104 78 25 568.0000000 554.50000 2.38% 15.5 2s * 182 116 16 566.0000000 554.69136 2.00% 14.4 3s 608 285 564.50000 16 84 566.00000 556.60714 1.66% 13.4 5s * 1416 274 37 565.0000000 558.18519 1.21% 13.2 6s 3677 177 563.75000 26 36 565.00000 562.27273 0.48% 11.4 10s Cutting planes: Gomory: 2 MIR: 3 Zero half: 13 Mod-K: 1 Explored 3986 nodes (44813 simplex iterations) in 10.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(6, 50), (7, 24), (8, 24), (8, 44), (10, 35), (10, 50), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (18, 38), (18, 45), (20, 41), (20, 43), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (41, 42), (43, 45)] Optimize a model with 621 rows, 1275 columns and 113075 nonzeros Presolve time: 0.06s Presolved: 621 rows, 1275 columns, 113075 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508095e+02, 132 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.80952 0 58 1672.00000 550.80952 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.80952 2.86% - 0s 0 0 551.34949 0 65 567.00000 551.34949 2.76% - 0s 0 0 551.34949 0 58 567.00000 551.34949 2.76% - 0s 0 0 551.75912 0 66 567.00000 551.75912 2.69% - 0s 0 0 551.99870 0 65 567.00000 551.99870 2.65% - 0s 0 0 552.06149 0 68 567.00000 552.06149 2.63% - 0s 0 0 552.20277 0 75 567.00000 552.20277 2.61% - 0s 0 0 552.31532 0 70 567.00000 552.31532 2.59% - 0s 0 0 552.38464 0 74 567.00000 552.38464 2.58% - 0s 0 0 552.46282 0 74 567.00000 552.46282 2.56% - 0s 0 0 552.46282 0 77 567.00000 552.46282 2.56% - 0s 0 0 552.47630 0 75 567.00000 552.47630 2.56% - 0s 0 0 552.47744 0 80 567.00000 552.47744 2.56% - 0s 0 0 552.47767 0 82 567.00000 552.47767 2.56% - 0s 0 0 552.48929 0 79 567.00000 552.48929 2.56% - 0s 0 0 552.52322 0 80 567.00000 552.52322 2.55% - 1s 0 0 552.52916 0 82 567.00000 552.52916 2.55% - 1s 0 0 552.53984 0 83 567.00000 552.53984 2.55% - 1s 0 0 552.56436 0 79 567.00000 552.56436 2.55% - 1s 0 0 552.58138 0 80 567.00000 552.58138 2.54% - 1s 0 0 552.60010 0 81 567.00000 552.60010 2.54% - 1s 0 0 552.63859 0 78 567.00000 552.63859 2.53% - 1s 0 0 552.64204 0 85 567.00000 552.64204 2.53% - 1s 0 0 552.90088 0 68 567.00000 552.90088 2.49% - 1s 0 0 552.90377 0 76 567.00000 552.90377 2.49% - 1s 0 0 552.91292 0 77 567.00000 552.91292 2.48% - 1s 0 0 552.92502 0 77 567.00000 552.92502 2.48% - 1s 0 0 552.93119 0 83 567.00000 552.93119 2.48% - 1s 0 0 552.94622 0 79 567.00000 552.94622 2.48% - 1s 0 0 552.94787 0 76 567.00000 552.94787 2.48% - 1s 0 0 552.94923 0 78 567.00000 552.94923 2.48% - 1s 0 0 552.95199 0 85 567.00000 552.95199 2.48% - 1s 0 2 552.96565 0 85 567.00000 552.96565 2.48% - 2s H 252 142 566.0000000 555.36842 1.88% 13.7 3s 613 322 561.33333 19 78 566.00000 556.82870 1.62% 12.7 5s 3091 719 564.36364 29 35 566.00000 560.08000 1.05% 11.7 10s * 4314 672 34 565.0000000 561.06897 0.70% 11.4 11s Cutting planes: Gomory: 5 MIR: 2 Zero half: 9 Explored 5756 nodes (61881 simplex iterations) in 13.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 4), (3, 17), (4, 37), (5, 14), (5, 18), (10, 17), (10, 50), (11, 31), (11, 50), (14, 42), (16, 45), (16, 46), (18, 38), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (31, 40), (34, 40), (34, 46), (35, 51), (36, 37), (39, 51), (41, 43), (43, 45)] Optimize a model with 622 rows, 1275 columns and 113453 nonzeros Presolve time: 0.06s Presolved: 622 rows, 1275 columns, 113453 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 577.0000000 550.84524 4.53% - 0s 0 0 551.50986 0 62 577.00000 551.50986 4.42% - 0s 0 0 551.50986 0 56 577.00000 551.50986 4.42% - 0s 0 0 551.92761 0 64 577.00000 551.92761 4.35% - 0s 0 0 552.21707 0 70 577.00000 552.21707 4.30% - 0s 0 0 552.23127 0 70 577.00000 552.23127 4.29% - 0s 0 0 552.24084 0 71 577.00000 552.24084 4.29% - 0s 0 0 552.26379 0 73 577.00000 552.26379 4.29% - 0s 0 0 552.31443 0 77 577.00000 552.31443 4.28% - 0s 0 0 552.36832 0 80 577.00000 552.36832 4.27% - 0s 0 0 552.41166 0 82 577.00000 552.41166 4.26% - 0s 0 0 552.43091 0 83 577.00000 552.43091 4.26% - 0s 0 0 552.45917 0 74 577.00000 552.45917 4.25% - 0s 0 0 552.51580 0 74 577.00000 552.51580 4.24% - 1s 0 0 552.53836 0 80 577.00000 552.53836 4.24% - 1s 0 0 552.56045 0 73 577.00000 552.56045 4.24% - 1s 0 0 552.56333 0 79 577.00000 552.56333 4.24% - 1s 0 0 552.56377 0 79 577.00000 552.56377 4.24% - 1s H 0 0 576.0000000 552.56377 4.07% - 1s H 0 0 570.0000000 552.56377 3.06% - 2s 0 2 552.56442 0 79 570.00000 552.56442 3.06% - 2s * 51 35 41 569.0000000 553.79821 2.67% 12.7 2s * 89 64 34 568.0000000 554.47518 2.38% 11.5 2s H 185 106 566.0000000 554.78022 1.98% 11.2 2s 713 352 556.96330 23 53 566.00000 556.57143 1.67% 12.5 5s * 2528 576 31 565.0000000 559.12500 1.04% 11.6 7s 4115 492 563.74286 29 45 565.00000 561.11111 0.69% 11.4 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 5212 nodes (57334 simplex iterations) in 11.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (12, 17), (15, 25), (15, 26), (17, 51), (19, 26), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (29, 32), (31, 35), (31, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 50), (5, 14), (6, 39), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (10, 39), (10, 50)] Optimize a model with 624 rows, 1275 columns and 113826 nonzeros Presolve time: 0.06s Presolved: 624 rows, 1275 columns, 113826 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 134 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.80458 0 63 567.00000 551.80458 2.68% - 0s 0 0 551.93783 0 68 567.00000 551.93783 2.66% - 0s 0 0 552.16921 0 69 567.00000 552.16921 2.62% - 0s 0 0 552.19401 0 72 567.00000 552.19401 2.61% - 0s 0 0 552.27356 0 66 567.00000 552.27356 2.60% - 0s 0 0 552.28179 0 70 567.00000 552.28179 2.60% - 0s 0 0 552.33333 0 62 567.00000 552.33333 2.59% - 0s 0 0 552.33333 0 66 567.00000 552.33333 2.59% - 0s 0 0 552.35625 0 69 567.00000 552.35625 2.58% - 0s 0 0 552.35887 0 70 567.00000 552.35887 2.58% - 0s 0 0 552.37273 0 72 567.00000 552.37273 2.58% - 0s 0 0 552.37822 0 68 567.00000 552.37822 2.58% - 0s 0 0 552.38308 0 76 567.00000 552.38308 2.58% - 0s 0 0 552.43153 0 69 567.00000 552.43153 2.57% - 0s 0 0 552.43443 0 73 567.00000 552.43443 2.57% - 0s 0 0 552.44082 0 74 567.00000 552.44082 2.57% - 0s 0 0 552.44708 0 73 567.00000 552.44708 2.57% - 0s 0 0 552.45896 0 78 567.00000 552.45896 2.56% - 0s 0 0 552.51505 0 75 567.00000 552.51505 2.55% - 0s 0 0 552.52005 0 77 567.00000 552.52005 2.55% - 0s 0 0 552.52290 0 76 567.00000 552.52290 2.55% - 1s 0 0 552.52899 0 81 567.00000 552.52899 2.55% - 1s 0 2 552.54233 0 81 567.00000 552.54233 2.55% - 1s H 281 156 566.0000000 555.31008 1.89% 12.1 2s 819 375 561.60976 21 51 566.00000 556.38043 1.70% 13.2 5s * 3352 576 25 565.0000000 560.42105 0.81% 12.2 8s 4222 364 562.30000 23 44 565.00000 562.00000 0.53% 12.0 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Explored 4906 nodes (56265 simplex iterations) in 10.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 38), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 38), (16, 46), (17, 51), (17, 30), (22, 35), (22, 30), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 23), (36, 37), (9, 27), (21, 36), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 626 rows, 1275 columns and 114017 nonzeros Presolve time: 0.06s Presolved: 626 rows, 1275 columns, 114017 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 141 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.92761 0 64 569.00000 551.92761 3.00% - 0s 0 0 552.20300 0 70 569.00000 552.20300 2.95% - 0s 0 0 552.22675 0 69 569.00000 552.22675 2.95% - 0s 0 0 552.25962 0 72 569.00000 552.25962 2.94% - 0s 0 0 552.32361 0 77 569.00000 552.32361 2.93% - 0s 0 0 552.37716 0 75 569.00000 552.37716 2.92% - 0s 0 0 552.40312 0 77 569.00000 552.40312 2.92% - 0s 0 0 552.50938 0 73 569.00000 552.50938 2.90% - 0s 0 0 552.50938 0 77 569.00000 552.50938 2.90% - 0s 0 0 552.51702 0 72 569.00000 552.51702 2.90% - 0s 0 0 552.53731 0 77 569.00000 552.53731 2.89% - 0s 0 0 552.55786 0 72 569.00000 552.55786 2.89% - 0s 0 0 552.56017 0 74 569.00000 552.56017 2.89% - 0s 0 0 552.56827 0 83 569.00000 552.56827 2.89% - 0s 0 0 552.58679 0 75 569.00000 552.58679 2.88% - 0s 0 0 552.59380 0 79 569.00000 552.59380 2.88% - 1s 0 0 552.59700 0 78 569.00000 552.59700 2.88% - 1s 0 0 552.60266 0 78 569.00000 552.60266 2.88% - 1s 0 0 552.62347 0 79 569.00000 552.62347 2.88% - 1s 0 0 552.62471 0 81 569.00000 552.62471 2.88% - 1s 0 0 552.62829 0 76 569.00000 552.62829 2.88% - 1s 0 0 552.62915 0 82 569.00000 552.62915 2.88% - 1s 0 0 552.62933 0 83 569.00000 552.62933 2.88% - 1s 0 0 552.65470 0 74 569.00000 552.65470 2.87% - 1s 0 0 552.65470 0 78 569.00000 552.65470 2.87% - 1s 0 0 552.67108 0 80 569.00000 552.67108 2.87% - 1s 0 0 552.69326 0 77 569.00000 552.69326 2.87% - 1s 0 0 552.69326 0 80 569.00000 552.69326 2.87% - 1s 0 0 552.76152 0 73 569.00000 552.76152 2.85% - 1s 0 0 552.76152 0 77 569.00000 552.76152 2.85% - 1s 0 0 552.77316 0 80 569.00000 552.77316 2.85% - 1s 0 0 552.77539 0 80 569.00000 552.77539 2.85% - 1s 0 0 552.77774 0 82 569.00000 552.77774 2.85% - 1s 0 0 552.77821 0 83 569.00000 552.77821 2.85% - 1s H 0 0 567.0000000 552.77821 2.51% - 2s 0 2 552.78506 0 83 567.00000 552.78506 2.51% - 2s H 160 109 566.0000000 554.60428 2.01% 12.0 3s 607 318 559.34615 5 83 566.00000 556.65217 1.65% 12.2 5s * 1385 349 29 565.0000000 557.24901 1.37% 12.9 6s 3508 455 563.20000 24 43 565.00000 560.20000 0.85% 12.3 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 12 Mod-K: 1 Explored 5132 nodes (59805 simplex iterations) in 12.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 50), (41, 42), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (43, 45), (20, 41), (20, 43), (14, 26), (14, 42), (31, 35)] Optimize a model with 627 rows, 1275 columns and 114170 nonzeros Presolve time: 0.06s Presolved: 627 rows, 1275 columns, 114170 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 141 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.01230 0 67 568.00000 552.01230 2.81% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.44161 0 77 568.00000 552.44161 2.74% - 0s 0 0 552.47380 0 76 568.00000 552.47380 2.73% - 0s 0 0 552.56306 0 74 568.00000 552.56306 2.72% - 0s 0 0 552.56306 0 77 568.00000 552.56306 2.72% - 0s 0 0 552.57759 0 76 568.00000 552.57759 2.72% - 0s 0 0 552.57759 0 79 568.00000 552.57759 2.72% - 0s 0 0 552.58266 0 74 568.00000 552.58266 2.71% - 1s 0 0 552.58965 0 75 568.00000 552.58965 2.71% - 1s 0 0 552.60189 0 78 568.00000 552.60189 2.71% - 1s 0 0 552.60602 0 79 568.00000 552.60602 2.71% - 1s 0 0 552.62724 0 73 568.00000 552.62724 2.71% - 1s 0 0 552.66473 0 80 568.00000 552.66473 2.70% - 1s 0 0 552.66843 0 79 568.00000 552.66843 2.70% - 1s 0 0 552.69208 0 83 568.00000 552.69208 2.70% - 1s 0 0 552.70085 0 76 568.00000 552.70085 2.69% - 1s 0 0 552.70085 0 79 568.00000 552.70085 2.69% - 1s 0 2 552.70472 0 79 568.00000 552.70472 2.69% - 2s 685 383 560.05405 27 50 568.00000 556.63636 2.00% 13.5 5s * 752 375 41 566.0000000 556.63636 1.65% 14.0 5s H 3495 697 565.0000000 560.13043 0.86% 12.6 9s 3576 704 cutoff 27 565.00000 560.18919 0.85% 12.5 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 6119 nodes (69775 simplex iterations) in 13.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 23), (4, 29), (4, 37), (6, 39), (10, 17), (10, 39), (11, 40), (11, 50), (16, 45), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 628 rows, 1275 columns and 114495 nonzeros Presolve time: 0.06s Presolved: 628 rows, 1275 columns, 114495 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 141 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.92761 0 64 569.00000 551.92761 3.00% - 0s 0 0 552.21707 0 70 569.00000 552.21707 2.95% - 0s 0 0 552.23127 0 70 569.00000 552.23127 2.95% - 0s 0 0 552.25964 0 72 569.00000 552.25964 2.94% - 0s 0 0 552.31662 0 76 569.00000 552.31662 2.93% - 0s 0 0 552.38280 0 76 569.00000 552.38280 2.92% - 0s 0 0 552.41264 0 76 569.00000 552.41264 2.92% - 0s 0 0 552.44712 0 82 569.00000 552.44712 2.91% - 0s 0 0 552.48517 0 75 569.00000 552.48517 2.90% - 0s 0 0 552.51282 0 73 569.00000 552.51282 2.90% - 0s 0 0 552.52853 0 74 569.00000 552.52853 2.89% - 0s 0 0 552.63135 0 78 569.00000 552.63135 2.88% - 0s 0 0 552.64985 0 77 569.00000 552.64985 2.87% - 0s 0 0 552.64985 0 78 569.00000 552.64985 2.87% - 0s 0 0 552.65989 0 77 569.00000 552.65989 2.87% - 0s 0 0 552.66976 0 79 569.00000 552.66976 2.87% - 0s 0 0 552.68653 0 81 569.00000 552.68653 2.87% - 1s 0 0 552.69739 0 83 569.00000 552.69739 2.87% - 1s 0 0 552.70152 0 83 569.00000 552.70152 2.86% - 1s 0 0 552.85547 0 79 569.00000 552.85547 2.84% - 1s 0 0 552.87519 0 80 569.00000 552.87519 2.83% - 1s 0 0 552.88104 0 83 569.00000 552.88104 2.83% - 1s 0 0 552.89348 0 78 569.00000 552.89348 2.83% - 1s 0 0 552.89838 0 81 569.00000 552.89838 2.83% - 1s 0 0 552.89974 0 84 569.00000 552.89974 2.83% - 1s 0 0 552.90328 0 85 569.00000 552.90328 2.83% - 1s 0 0 552.90455 0 86 569.00000 552.90455 2.83% - 1s 0 0 552.90455 0 86 569.00000 552.90455 2.83% - 1s H 0 0 567.0000000 552.90455 2.49% - 1s 0 2 552.90617 0 86 567.00000 552.90617 2.49% - 2s H 158 101 566.0000000 555.02004 1.94% 12.6 2s 614 311 560.09783 7 73 566.00000 556.59757 1.66% 12.1 5s * 1280 346 29 565.0000000 557.57143 1.31% 13.1 7s 3020 445 560.59821 27 50 565.00000 560.59821 0.78% 12.0 10s Cutting planes: Gomory: 9 MIR: 3 Zero half: 8 Explored 4541 nodes (51906 simplex iterations) in 12.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 19), (7, 24), (8, 27), (8, 44), (11, 40), (11, 50), (16, 18), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (24, 25), (25, 44), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 629 rows, 1275 columns and 114820 nonzeros Presolve time: 0.06s Presolved: 629 rows, 1275 columns, 114820 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 141 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.25152 0 73 1672.00000 552.25152 67.0% - 0s 0 0 552.26270 0 76 1672.00000 552.26270 67.0% - 0s 0 0 552.35624 0 64 1672.00000 552.35624 67.0% - 0s 0 0 552.36040 0 77 1672.00000 552.36040 67.0% - 0s 0 0 552.37395 0 75 1672.00000 552.37395 67.0% - 0s 0 0 552.38062 0 74 1672.00000 552.38062 67.0% - 1s H 0 0 672.0000000 552.38062 17.8% - 1s H 0 0 585.0000000 552.38062 5.58% - 1s H 0 0 573.0000000 552.38062 3.60% - 1s 0 0 552.40634 0 77 573.00000 552.40634 3.59% - 1s 0 0 552.40634 0 56 573.00000 552.40634 3.59% - 1s 0 0 552.40683 0 74 573.00000 552.40683 3.59% - 1s 0 0 552.43700 0 74 573.00000 552.43700 3.59% - 1s 0 0 552.43700 0 77 573.00000 552.43700 3.59% - 1s 0 0 552.48805 0 67 573.00000 552.48805 3.58% - 1s 0 0 552.48805 0 71 573.00000 552.48805 3.58% - 1s 0 0 552.49091 0 71 573.00000 552.49091 3.58% - 1s 0 0 552.50448 0 78 573.00000 552.50448 3.58% - 1s 0 0 552.51614 0 82 573.00000 552.51614 3.57% - 1s 0 0 552.53779 0 73 573.00000 552.53779 3.57% - 1s 0 0 552.53779 0 77 573.00000 552.53779 3.57% - 1s 0 0 552.56104 0 75 573.00000 552.56104 3.57% - 1s 0 0 552.56239 0 79 573.00000 552.56239 3.57% - 1s 0 0 552.58293 0 77 573.00000 552.58293 3.56% - 2s 0 0 552.58762 0 79 573.00000 552.58762 3.56% - 2s 0 0 552.59574 0 83 573.00000 552.59574 3.56% - 2s H 0 0 572.0000000 552.59574 3.39% - 2s H 0 0 566.0000000 552.59574 2.37% - 2s 0 2 552.65378 0 83 566.00000 552.65378 2.36% - 2s 601 272 560.25000 15 77 566.00000 556.89055 1.61% 13.3 5s 3177 546 563.09091 24 54 566.00000 560.41875 0.99% 12.6 10s * 5211 193 29 565.0000000 563.00000 0.35% 11.8 13s Cutting planes: Gomory: 2 MIR: 3 Zero half: 11 Explored 5467 nodes (63282 simplex iterations) in 13.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.650000000000e+02, best bound 5.650000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 19), (5, 38), (11, 40), (11, 50), (16, 38), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 630 rows, 1275 columns and 115051 nonzeros Presolve time: 0.06s Presolved: 630 rows, 1275 columns, 115051 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.84524 2.68% - 0s 0 0 551.50986 0 62 566.00000 551.50986 2.56% - 0s 0 0 551.50986 0 56 566.00000 551.50986 2.56% - 0s 0 0 551.80458 0 63 566.00000 551.80458 2.51% - 0s 0 0 551.96170 0 67 566.00000 551.96170 2.48% - 0s 0 0 552.15996 0 71 566.00000 552.15996 2.45% - 0s 0 0 552.17831 0 71 566.00000 552.17831 2.44% - 0s 0 0 552.30344 0 61 566.00000 552.30344 2.42% - 0s 0 0 552.30344 0 65 566.00000 552.30344 2.42% - 0s 0 0 552.33902 0 70 566.00000 552.33902 2.41% - 0s 0 0 552.34685 0 68 566.00000 552.34685 2.41% - 0s 0 0 552.40304 0 76 566.00000 552.40304 2.40% - 0s 0 0 552.45474 0 72 566.00000 552.45474 2.39% - 0s 0 0 552.46782 0 73 566.00000 552.46782 2.39% - 0s 0 0 552.47020 0 72 566.00000 552.47020 2.39% - 0s 0 0 552.47664 0 77 566.00000 552.47664 2.39% - 0s 0 0 552.49566 0 73 566.00000 552.49566 2.39% - 0s 0 0 552.49756 0 73 566.00000 552.49756 2.39% - 0s 0 0 552.49804 0 72 566.00000 552.49804 2.39% - 0s 0 0 552.50022 0 77 566.00000 552.50022 2.39% - 1s 0 0 552.50838 0 75 566.00000 552.50838 2.38% - 1s 0 0 552.51255 0 81 566.00000 552.51255 2.38% - 1s 0 0 552.55534 0 78 566.00000 552.55534 2.38% - 1s 0 0 552.57103 0 80 566.00000 552.57103 2.37% - 1s 0 0 552.57161 0 78 566.00000 552.57161 2.37% - 1s 0 0 552.57406 0 80 566.00000 552.57406 2.37% - 1s 0 0 552.57434 0 82 566.00000 552.57434 2.37% - 1s 0 2 552.59944 0 82 566.00000 552.59944 2.37% - 1s 712 329 562.58491 23 48 566.00000 556.62901 1.66% 13.3 5s 3748 738 562.73770 19 57 566.00000 560.38235 0.99% 12.3 10s 7386 73 564.73810 23 47 566.00000 564.25000 0.31% 11.3 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 7478 nodes (84374 simplex iterations) in 15.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 19), (5, 38), (11, 40), (11, 50), (16, 38), (16, 46), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 631 rows, 1275 columns and 115304 nonzeros Presolve time: 0.06s Presolved: 631 rows, 1275 columns, 115304 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.92761 0 64 570.00000 551.92761 3.17% - 0s 0 0 552.24658 0 66 570.00000 552.24658 3.11% - 0s 0 0 552.24658 0 69 570.00000 552.24658 3.11% - 0s 0 0 552.35281 0 73 570.00000 552.35281 3.10% - 0s 0 0 552.37792 0 75 570.00000 552.37792 3.09% - 0s 0 0 552.38678 0 75 570.00000 552.38678 3.09% - 0s 0 0 552.39517 0 75 570.00000 552.39517 3.09% - 0s 0 0 552.39967 0 76 570.00000 552.39967 3.09% - 0s 0 0 552.40907 0 81 570.00000 552.40907 3.09% - 0s 0 0 552.41013 0 79 570.00000 552.41013 3.09% - 0s 0 0 552.41363 0 79 570.00000 552.41363 3.09% - 0s 0 0 552.41444 0 82 570.00000 552.41444 3.09% - 0s 0 0 552.45307 0 77 570.00000 552.45307 3.08% - 0s 0 0 552.47738 0 79 570.00000 552.47738 3.07% - 0s 0 0 552.48868 0 83 570.00000 552.48868 3.07% - 1s 0 0 552.49466 0 80 570.00000 552.49466 3.07% - 1s 0 0 552.49678 0 81 570.00000 552.49678 3.07% - 1s 0 0 552.50633 0 80 570.00000 552.50633 3.07% - 1s 0 0 552.51217 0 84 570.00000 552.51217 3.07% - 1s 0 0 552.52733 0 79 570.00000 552.52733 3.07% - 1s 0 0 552.52862 0 80 570.00000 552.52862 3.07% - 1s 0 0 552.53348 0 77 570.00000 552.53348 3.06% - 1s 0 0 552.53362 0 78 570.00000 552.53362 3.06% - 1s 0 2 552.54075 0 78 570.00000 552.54075 3.06% - 2s H 54 34 567.0000000 554.32540 2.24% 15.9 2s * 135 73 26 566.0000000 554.45495 2.04% 14.3 2s 623 290 557.56311 20 55 566.00000 556.73747 1.64% 13.7 5s 3760 438 cutoff 22 566.00000 562.33333 0.65% 11.4 10s Cutting planes: Gomory: 2 MIR: 3 Zero half: 12 Explored 4858 nodes (52641 simplex iterations) in 11.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(19, 26), (35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (12, 39), (15, 25), (15, 26), (17, 39), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (6, 50), (41, 42), (43, 45), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (10, 50), (10, 31)] Optimize a model with 633 rows, 1275 columns and 115634 nonzeros Presolve time: 0.06s Presolved: 633 rows, 1275 columns, 115634 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.25152 0 73 1672.00000 552.25152 67.0% - 0s 0 0 552.26270 0 76 1672.00000 552.26270 67.0% - 0s 0 0 552.35624 0 64 1672.00000 552.35624 67.0% - 0s 0 0 552.36040 0 77 1672.00000 552.36040 67.0% - 0s 0 0 552.37395 0 75 1672.00000 552.37395 67.0% - 0s 0 0 552.38062 0 74 1672.00000 552.38062 67.0% - 0s H 0 0 854.0000000 552.38062 35.3% - 0s H 0 0 585.0000000 552.38062 5.58% - 0s H 0 0 573.0000000 552.38062 3.60% - 1s 0 0 552.40634 0 77 573.00000 552.40634 3.59% - 1s 0 0 552.40634 0 56 573.00000 552.40634 3.59% - 1s 0 0 552.40683 0 73 573.00000 552.40683 3.59% - 1s 0 0 552.43700 0 73 573.00000 552.43700 3.59% - 1s 0 0 552.43700 0 76 573.00000 552.43700 3.59% - 1s 0 0 552.48750 0 68 573.00000 552.48750 3.58% - 1s 0 0 552.48750 0 72 573.00000 552.48750 3.58% - 1s 0 0 552.52706 0 73 573.00000 552.52706 3.57% - 1s 0 0 552.55177 0 80 573.00000 552.55177 3.57% - 1s 0 0 552.57170 0 78 573.00000 552.57170 3.57% - 1s 0 0 552.57766 0 82 573.00000 552.57766 3.56% - 1s 0 0 552.61402 0 79 573.00000 552.61402 3.56% - 1s 0 0 552.62238 0 84 573.00000 552.62238 3.56% - 1s 0 0 552.62254 0 87 573.00000 552.62254 3.56% - 1s 0 0 552.64033 0 82 573.00000 552.64033 3.55% - 2s 0 0 552.64953 0 76 573.00000 552.64953 3.55% - 2s 0 0 552.65133 0 81 573.00000 552.65133 3.55% - 2s 0 0 552.65133 0 81 573.00000 552.65133 3.55% - 2s H 0 0 570.0000000 552.65133 3.04% - 2s H 0 0 567.0000000 552.65133 2.53% - 2s 0 2 552.67305 0 81 567.00000 552.67305 2.53% - 2s * 87 46 32 566.0000000 554.42045 2.05% 11.5 3s 607 310 562.66667 11 82 566.00000 556.29167 1.72% 12.2 5s 3346 769 564.90000 25 48 566.00000 560.06349 1.05% 11.9 10s 6704 386 cutoff 25 566.00000 563.00000 0.53% 11.2 15s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Explored 7449 nodes (81695 simplex iterations) in 15.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (12, 17), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (38, 45), (6, 50), (39, 50), (10, 39), (10, 31), (11, 40), (11, 31), (16, 45), (16, 46)] adding cut for [(5, 48), (5, 18), (41, 42), (14, 42), (14, 26), (15, 26), (18, 43), (20, 41), (20, 43)] Optimize a model with 636 rows, 1275 columns and 115916 nonzeros Presolve time: 0.06s Presolved: 636 rows, 1275 columns, 115916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.25152 0 73 1672.00000 552.25152 67.0% - 0s 0 0 552.26270 0 76 1672.00000 552.26270 67.0% - 0s 0 0 552.35624 0 64 1672.00000 552.35624 67.0% - 0s 0 0 552.36040 0 77 1672.00000 552.36040 67.0% - 0s 0 0 552.37395 0 75 1672.00000 552.37395 67.0% - 0s H 0 0 720.0000000 552.37395 23.3% - 0s H 0 0 581.0000000 552.37395 4.93% - 0s H 0 0 573.0000000 552.37395 3.60% - 0s 0 0 552.38062 0 73 573.00000 552.38062 3.60% - 1s 0 0 552.38062 0 56 573.00000 552.38062 3.60% - 1s 0 0 552.39437 0 67 573.00000 552.39437 3.60% - 1s 0 0 552.43191 0 75 573.00000 552.43191 3.59% - 1s 0 0 552.45167 0 70 573.00000 552.45167 3.59% - 1s 0 0 552.45781 0 78 573.00000 552.45781 3.59% - 1s 0 0 552.48052 0 73 573.00000 552.48052 3.58% - 1s 0 0 552.49921 0 72 573.00000 552.49921 3.58% - 1s 0 0 552.56174 0 79 573.00000 552.56174 3.57% - 1s 0 0 552.56699 0 78 573.00000 552.56699 3.57% - 1s 0 0 552.57220 0 80 573.00000 552.57220 3.57% - 1s 0 0 552.57572 0 83 573.00000 552.57572 3.56% - 1s 0 2 552.58066 0 82 573.00000 552.58066 3.56% - 2s * 44 35 38 570.0000000 554.35294 2.75% 12.2 2s * 83 63 39 569.0000000 554.40725 2.56% 11.2 3s * 292 177 16 568.0000000 554.97199 2.29% 12.0 3s * 492 244 25 566.0000000 556.20000 1.73% 12.2 3s 610 300 557.00000 13 67 566.00000 557.00000 1.59% 12.3 5s 3183 607 564.50000 28 12 566.00000 560.10000 1.04% 12.3 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 10 Explored 6143 nodes (69644 simplex iterations) in 14.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (14, 19), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 40), (34, 40), (34, 46), (36, 37), (41, 42), (43, 45)] Optimize a model with 637 rows, 1275 columns and 116169 nonzeros Presolve time: 0.07s Presolved: 637 rows, 1275 columns, 116169 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 575.0000000 550.84524 4.20% - 0s 0 0 551.50986 0 62 575.00000 551.50986 4.09% - 0s 0 0 551.50986 0 56 575.00000 551.50986 4.09% - 0s 0 0 551.92761 0 64 575.00000 551.92761 4.01% - 0s 0 0 552.20793 0 66 575.00000 552.20793 3.96% - 0s 0 0 552.20793 0 70 575.00000 552.20793 3.96% - 0s 0 0 552.22904 0 65 575.00000 552.22904 3.96% - 0s 0 0 552.22904 0 69 575.00000 552.22904 3.96% - 0s 0 0 552.25024 0 67 575.00000 552.25024 3.96% - 0s 0 0 552.25024 0 71 575.00000 552.25024 3.96% - 0s 0 0 552.33308 0 71 575.00000 552.33308 3.94% - 0s 0 0 552.33308 0 75 575.00000 552.33308 3.94% - 1s 0 0 552.40345 0 67 575.00000 552.40345 3.93% - 1s 0 0 552.41862 0 75 575.00000 552.41862 3.93% - 1s 0 0 552.52273 0 64 575.00000 552.52273 3.91% - 1s 0 0 552.52273 0 68 575.00000 552.52273 3.91% - 1s 0 0 552.54164 0 73 575.00000 552.54164 3.91% - 1s 0 0 552.54596 0 74 575.00000 552.54596 3.91% - 1s 0 0 552.55479 0 75 575.00000 552.55479 3.90% - 1s 0 0 552.55915 0 80 575.00000 552.55915 3.90% - 1s 0 0 552.57963 0 76 575.00000 552.57963 3.90% - 1s 0 0 552.59474 0 70 575.00000 552.59474 3.90% - 1s 0 0 552.66422 0 73 575.00000 552.66422 3.88% - 1s 0 0 552.67873 0 73 575.00000 552.67873 3.88% - 1s 0 0 552.69756 0 78 575.00000 552.69756 3.88% - 1s 0 0 552.72115 0 78 575.00000 552.72115 3.87% - 1s 0 0 552.73444 0 82 575.00000 552.73444 3.87% - 1s 0 0 552.73561 0 85 575.00000 552.73561 3.87% - 1s 0 0 552.74978 0 78 575.00000 552.74978 3.87% - 1s 0 0 552.75028 0 78 575.00000 552.75028 3.87% - 1s 0 0 552.75028 0 78 575.00000 552.75028 3.87% - 2s H 0 0 569.0000000 552.75028 2.86% - 2s H 0 0 567.0000000 552.75028 2.51% - 2s 0 2 552.75364 0 78 567.00000 552.75364 2.51% - 2s * 243 123 21 566.0000000 554.80526 1.98% 12.1 3s 607 295 560.97571 10 75 566.00000 556.76623 1.63% 12.1 5s 3202 575 563.00000 26 49 566.00000 560.00000 1.06% 12.4 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 11 Mod-K: 1 Explored 6426 nodes (73407 simplex iterations) in 14.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 45), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37)] adding cut for [(6, 38), (41, 43), (14, 42), (14, 26), (18, 38), (18, 43), (19, 26), (20, 41), (20, 42)] Optimize a model with 639 rows, 1275 columns and 116467 nonzeros Presolve time: 0.07s Presolved: 639 rows, 1275 columns, 116467 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 575.0000000 550.84524 4.20% - 0s 0 0 551.50986 0 62 575.00000 551.50986 4.09% - 0s 0 0 551.50986 0 56 575.00000 551.50986 4.09% - 0s 0 0 551.92761 0 64 575.00000 551.92761 4.01% - 0s 0 0 552.20793 0 66 575.00000 552.20793 3.96% - 0s 0 0 552.20793 0 70 575.00000 552.20793 3.96% - 0s 0 0 552.22904 0 64 575.00000 552.22904 3.96% - 0s 0 0 552.22904 0 68 575.00000 552.22904 3.96% - 0s 0 0 552.25024 0 66 575.00000 552.25024 3.96% - 0s 0 0 552.25024 0 70 575.00000 552.25024 3.96% - 0s 0 0 552.30016 0 69 575.00000 552.30016 3.95% - 0s 0 0 552.30050 0 75 575.00000 552.30050 3.95% - 1s 0 0 552.34328 0 68 575.00000 552.34328 3.94% - 1s 0 0 552.34416 0 73 575.00000 552.34416 3.94% - 1s 0 0 552.36180 0 73 575.00000 552.36180 3.94% - 1s 0 0 552.36180 0 77 575.00000 552.36180 3.94% - 1s 0 0 552.37951 0 73 575.00000 552.37951 3.93% - 1s 0 0 552.37951 0 77 575.00000 552.37951 3.93% - 1s 0 0 552.39105 0 79 575.00000 552.39105 3.93% - 1s 0 0 552.41761 0 76 575.00000 552.41761 3.93% - 1s 0 0 552.43397 0 80 575.00000 552.43397 3.92% - 1s 0 0 552.44695 0 79 575.00000 552.44695 3.92% - 1s 0 0 552.45723 0 80 575.00000 552.45723 3.92% - 1s 0 0 552.50893 0 82 575.00000 552.50893 3.91% - 1s 0 0 552.63415 0 73 575.00000 552.63415 3.89% - 1s 0 0 552.65672 0 73 575.00000 552.65672 3.89% - 1s 0 0 552.66923 0 78 575.00000 552.66923 3.88% - 1s 0 0 552.68662 0 79 575.00000 552.68662 3.88% - 1s 0 0 552.69775 0 78 575.00000 552.69775 3.88% - 1s 0 0 552.70994 0 81 575.00000 552.70994 3.88% - 1s 0 0 552.70994 0 82 575.00000 552.70994 3.88% - 1s 0 0 552.72569 0 81 575.00000 552.72569 3.87% - 1s 0 0 552.72569 0 82 575.00000 552.72569 3.87% - 1s 0 0 552.73010 0 81 575.00000 552.73010 3.87% - 2s 0 0 552.73203 0 83 575.00000 552.73203 3.87% - 2s 0 0 552.73530 0 86 575.00000 552.73530 3.87% - 2s 0 0 552.81658 0 80 575.00000 552.81658 3.86% - 2s 0 0 552.83529 0 77 575.00000 552.83529 3.85% - 2s 0 0 552.86888 0 81 575.00000 552.86888 3.85% - 2s 0 0 552.91417 0 80 575.00000 552.91417 3.84% - 2s 0 0 552.92511 0 75 575.00000 552.92511 3.84% - 2s 0 0 552.92811 0 77 575.00000 552.92811 3.84% - 2s 0 0 552.92847 0 82 575.00000 552.92847 3.84% - 2s 0 0 552.95257 0 79 575.00000 552.95257 3.83% - 2s 0 0 552.96326 0 83 575.00000 552.96326 3.83% - 2s 0 0 552.97668 0 88 575.00000 552.97668 3.83% - 2s 0 0 552.97942 0 86 575.00000 552.97942 3.83% - 2s 0 0 552.98061 0 82 575.00000 552.98061 3.83% - 2s 0 0 552.98100 0 89 575.00000 552.98100 3.83% - 2s 0 0 552.98122 0 88 575.00000 552.98122 3.83% - 3s 0 2 552.98452 0 88 575.00000 552.98452 3.83% - 4s * 61 46 57 569.0000000 554.12195 2.61% 11.1 4s * 100 71 35 568.0000000 554.51515 2.37% 12.1 4s * 133 89 32 567.0000000 554.87947 2.14% 11.8 4s * 275 140 16 566.0000000 555.19481 1.91% 13.4 4s 305 159 557.18605 6 58 566.00000 555.49455 1.86% 13.2 5s 1429 408 560.75000 23 45 566.00000 557.58824 1.49% 12.8 10s 4540 716 cutoff 22 566.00000 560.74643 0.93% 11.7 15s Cutting planes: Gomory: 5 MIR: 3 Zero half: 10 Mod-K: 1 Explored 7790 nodes (84810 simplex iterations) in 19.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 17), (36, 37), (8, 24), (8, 27), (7, 15), (15, 26), (17, 51), (35, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (25, 26), (24, 44), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 640 rows, 1275 columns and 116677 nonzeros Presolve time: 0.07s Presolved: 640 rows, 1275 columns, 116677 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.84524 2.68% - 0s 0 0 551.50986 0 62 566.00000 551.50986 2.56% - 0s 0 0 551.50986 0 56 566.00000 551.50986 2.56% - 0s 0 0 551.80458 0 63 566.00000 551.80458 2.51% - 0s 0 0 551.96170 0 67 566.00000 551.96170 2.48% - 0s 0 0 552.15996 0 71 566.00000 552.15996 2.45% - 0s 0 0 552.17831 0 71 566.00000 552.17831 2.44% - 0s 0 0 552.30344 0 61 566.00000 552.30344 2.42% - 0s 0 0 552.30344 0 65 566.00000 552.30344 2.42% - 0s 0 0 552.33902 0 70 566.00000 552.33902 2.41% - 0s 0 0 552.34685 0 68 566.00000 552.34685 2.41% - 0s 0 0 552.40304 0 76 566.00000 552.40304 2.40% - 0s 0 0 552.45474 0 72 566.00000 552.45474 2.39% - 0s 0 0 552.46782 0 73 566.00000 552.46782 2.39% - 0s 0 0 552.47020 0 72 566.00000 552.47020 2.39% - 0s 0 0 552.47664 0 77 566.00000 552.47664 2.39% - 0s 0 0 552.49566 0 73 566.00000 552.49566 2.39% - 1s 0 0 552.49666 0 74 566.00000 552.49666 2.39% - 1s 0 0 552.49749 0 73 566.00000 552.49749 2.39% - 1s 0 0 552.49775 0 78 566.00000 552.49775 2.39% - 1s 0 0 552.49775 0 78 566.00000 552.49775 2.39% - 1s 0 2 552.49913 0 78 566.00000 552.49913 2.39% - 1s 960 356 558.25000 22 43 566.00000 556.75000 1.63% 13.0 5s 4146 650 562.87500 24 54 566.00000 560.87097 0.91% 12.5 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 6972 nodes (80344 simplex iterations) in 13.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 33), (4, 29), (4, 37), (8, 24), (8, 27), (10, 31), (10, 51), (15, 26), (17, 51), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 26), (25, 44), (27, 32), (29, 32), (31, 35), (36, 37)] Optimize a model with 641 rows, 1275 columns and 116908 nonzeros Presolve time: 0.07s Presolved: 641 rows, 1275 columns, 116908 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.92761 0 64 572.00000 551.92761 3.51% - 0s 0 0 552.17116 0 72 572.00000 552.17116 3.47% - 0s 0 0 552.23139 0 69 572.00000 552.23139 3.46% - 0s 0 0 552.26053 0 71 572.00000 552.26053 3.45% - 0s 0 0 552.33194 0 77 572.00000 552.33194 3.44% - 0s 0 0 552.34813 0 78 572.00000 552.34813 3.44% - 0s 0 0 552.35713 0 78 572.00000 552.35713 3.43% - 0s 0 0 552.37980 0 81 572.00000 552.37980 3.43% - 0s 0 0 552.43293 0 83 572.00000 552.43293 3.42% - 0s 0 0 552.49324 0 76 572.00000 552.49324 3.41% - 0s 0 0 552.56721 0 79 572.00000 552.56721 3.40% - 0s 0 0 552.56721 0 83 572.00000 552.56721 3.40% - 1s 0 0 552.59679 0 79 572.00000 552.59679 3.39% - 1s 0 0 552.60567 0 86 572.00000 552.60567 3.39% - 1s 0 0 552.62630 0 82 572.00000 552.62630 3.39% - 1s 0 0 552.68032 0 80 572.00000 552.68032 3.38% - 1s 0 0 552.68361 0 84 572.00000 552.68361 3.38% - 1s 0 0 552.68903 0 83 572.00000 552.68903 3.38% - 1s 0 0 552.69821 0 87 572.00000 552.69821 3.37% - 1s 0 0 552.69967 0 87 572.00000 552.69967 3.37% - 1s 0 0 552.70354 0 88 572.00000 552.70354 3.37% - 1s 0 0 552.70576 0 89 572.00000 552.70576 3.37% - 1s 0 0 552.70693 0 91 572.00000 552.70693 3.37% - 1s 0 0 552.75508 0 84 572.00000 552.75508 3.36% - 1s 0 0 552.75508 0 84 572.00000 552.75508 3.36% - 1s 0 0 552.75508 0 84 572.00000 552.75508 3.36% - 2s 0 2 552.76034 0 84 572.00000 552.76034 3.36% - 2s H 27 26 567.0000000 553.93243 2.30% 16.3 2s * 91 60 22 566.0000000 554.47661 2.04% 13.9 2s 607 299 556.86538 7 85 566.00000 556.69836 1.64% 12.2 5s 3156 492 564.88172 32 48 566.00000 561.28571 0.83% 12.5 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 15 Explored 4954 nodes (57374 simplex iterations) in 12.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (18, 45), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (5, 18), (29, 32), (31, 35)] adding cut for [(6, 38), (38, 43), (41, 42), (14, 42), (14, 26), (15, 19), (15, 26), (20, 41), (20, 43)] Optimize a model with 643 rows, 1275 columns and 117163 nonzeros Presolve time: 0.07s Presolved: 643 rows, 1275 columns, 117163 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.84524 4.03% - 0s 0 0 551.50986 0 62 574.00000 551.50986 3.92% - 0s 0 0 551.50986 0 56 574.00000 551.50986 3.92% - 0s 0 0 551.92761 0 64 574.00000 551.92761 3.85% - 0s 0 0 552.17116 0 72 574.00000 552.17116 3.80% - 0s 0 0 552.23037 0 72 574.00000 552.23037 3.79% - 0s 0 0 552.26132 0 70 574.00000 552.26132 3.79% - 0s 0 0 552.27191 0 73 574.00000 552.27191 3.79% - 0s 0 0 552.29203 0 75 574.00000 552.29203 3.78% - 0s 0 0 552.33793 0 77 574.00000 552.33793 3.77% - 0s 0 0 552.35231 0 82 574.00000 552.35231 3.77% - 0s 0 0 552.39492 0 79 574.00000 552.39492 3.76% - 0s 0 0 552.40548 0 80 574.00000 552.40548 3.76% - 0s 0 0 552.43572 0 81 574.00000 552.43572 3.76% - 0s 0 0 552.44578 0 79 574.00000 552.44578 3.76% - 0s 0 0 552.45134 0 81 574.00000 552.45134 3.75% - 0s 0 0 552.45467 0 85 574.00000 552.45467 3.75% - 1s 0 0 552.49279 0 78 574.00000 552.49279 3.75% - 1s 0 0 552.52329 0 85 574.00000 552.52329 3.74% - 1s 0 0 552.62948 0 71 574.00000 552.62948 3.72% - 1s 0 0 552.64833 0 79 574.00000 552.64833 3.72% - 1s 0 0 552.67940 0 76 574.00000 552.67940 3.71% - 1s 0 0 552.68930 0 79 574.00000 552.68930 3.71% - 1s 0 0 552.83622 0 69 574.00000 552.83622 3.69% - 1s 0 0 552.83622 0 73 574.00000 552.83622 3.69% - 1s 0 0 552.85703 0 83 574.00000 552.85703 3.68% - 1s 0 0 552.86853 0 78 574.00000 552.86853 3.68% - 1s 0 0 552.87282 0 85 574.00000 552.87282 3.68% - 1s 0 0 552.90434 0 84 574.00000 552.90434 3.68% - 1s 0 0 552.91703 0 79 574.00000 552.91703 3.67% - 1s 0 0 552.91923 0 86 574.00000 552.91923 3.67% - 1s 0 0 552.93103 0 79 574.00000 552.93103 3.67% - 1s 0 0 552.93142 0 82 574.00000 552.93142 3.67% - 1s 0 0 552.93145 0 83 574.00000 552.93145 3.67% - 1s 0 0 552.93152 0 83 574.00000 552.93152 3.67% - 1s 0 0 552.93152 0 83 574.00000 552.93152 3.67% - 2s 0 2 552.93247 0 83 574.00000 552.93247 3.67% - 3s * 54 37 47 570.0000000 553.74514 2.85% 10.7 3s * 96 56 36 568.0000000 554.01094 2.46% 11.9 3s * 361 210 20 567.0000000 555.63934 2.00% 13.0 4s * 564 285 16 566.0000000 556.23770 1.72% 13.1 4s 701 342 564.16667 18 62 566.00000 556.75221 1.63% 13.1 5s 2335 614 563.05882 24 63 566.00000 559.00000 1.24% 12.1 10s 5494 826 563.10000 25 48 566.00000 561.55556 0.79% 11.1 15s Cutting planes: Gomory: 7 MIR: 3 Zero half: 8 Explored 8515 nodes (87444 simplex iterations) in 18.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 644 rows, 1275 columns and 117439 nonzeros Presolve time: 0.07s Presolved: 644 rows, 1275 columns, 117439 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.92761 0 64 570.00000 551.92761 3.17% - 0s 0 0 552.24658 0 66 570.00000 552.24658 3.11% - 0s 0 0 552.24658 0 69 570.00000 552.24658 3.11% - 0s 0 0 552.35281 0 73 570.00000 552.35281 3.10% - 0s 0 0 552.37792 0 75 570.00000 552.37792 3.09% - 0s 0 0 552.38678 0 75 570.00000 552.38678 3.09% - 0s 0 0 552.39517 0 75 570.00000 552.39517 3.09% - 0s 0 0 552.39967 0 76 570.00000 552.39967 3.09% - 0s 0 0 552.40907 0 81 570.00000 552.40907 3.09% - 0s 0 0 552.41013 0 79 570.00000 552.41013 3.09% - 0s 0 0 552.41363 0 79 570.00000 552.41363 3.09% - 0s 0 0 552.41444 0 82 570.00000 552.41444 3.09% - 0s 0 0 552.45307 0 77 570.00000 552.45307 3.08% - 1s 0 0 552.47738 0 79 570.00000 552.47738 3.07% - 1s 0 0 552.49255 0 78 570.00000 552.49255 3.07% - 1s 0 0 552.49473 0 83 570.00000 552.49473 3.07% - 1s 0 0 552.50318 0 80 570.00000 552.50318 3.07% - 1s 0 0 552.54934 0 80 570.00000 552.54934 3.06% - 1s 0 0 552.65449 0 76 570.00000 552.65449 3.04% - 1s 0 0 552.67732 0 77 570.00000 552.67732 3.04% - 1s 0 0 552.67740 0 81 570.00000 552.67740 3.04% - 1s 0 0 552.68299 0 85 570.00000 552.68299 3.04% - 1s 0 0 552.69020 0 81 570.00000 552.69020 3.04% - 1s 0 0 552.70027 0 83 570.00000 552.70027 3.04% - 1s 0 0 552.71716 0 85 570.00000 552.71716 3.03% - 1s 0 0 552.71862 0 85 570.00000 552.71862 3.03% - 1s 0 0 552.71935 0 89 570.00000 552.71935 3.03% - 1s 0 0 552.76068 0 73 570.00000 552.76068 3.02% - 1s 0 0 552.76068 0 77 570.00000 552.76068 3.02% - 1s 0 0 552.76326 0 81 570.00000 552.76326 3.02% - 1s 0 0 552.76326 0 81 570.00000 552.76326 3.02% - 1s 0 0 552.76326 0 80 570.00000 552.76326 3.02% - 2s H 0 0 566.0000000 552.76326 2.34% - 2s 0 2 552.76593 0 80 566.00000 552.76593 2.34% - 2s 603 311 559.53191 13 56 566.00000 556.47368 1.68% 13.2 5s 2083 641 560.83871 26 57 566.00000 558.44524 1.33% 12.5 10s 5147 1085 cutoff 26 566.00000 560.66667 0.94% 11.9 15s 8154 748 565.00000 27 42 566.00000 562.31111 0.65% 11.7 20s Cutting planes: Gomory: 6 MIR: 2 Zero half: 9 Mod-K: 1 Explored 9905 nodes (111036 simplex iterations) in 22.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 645 rows, 1275 columns and 117817 nonzeros Presolve time: 0.07s Presolved: 645 rows, 1275 columns, 117817 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.92761 0 64 572.00000 551.92761 3.51% - 0s 0 0 552.17116 0 72 572.00000 552.17116 3.47% - 0s 0 0 552.23139 0 69 572.00000 552.23139 3.46% - 0s 0 0 552.26053 0 71 572.00000 552.26053 3.45% - 0s 0 0 552.33194 0 77 572.00000 552.33194 3.44% - 0s 0 0 552.34813 0 78 572.00000 552.34813 3.44% - 0s 0 0 552.35713 0 78 572.00000 552.35713 3.43% - 0s 0 0 552.37980 0 81 572.00000 552.37980 3.43% - 0s 0 0 552.43293 0 83 572.00000 552.43293 3.42% - 0s 0 0 552.49324 0 76 572.00000 552.49324 3.41% - 0s 0 0 552.56721 0 79 572.00000 552.56721 3.40% - 0s 0 0 552.56721 0 83 572.00000 552.56721 3.40% - 0s 0 0 552.59679 0 79 572.00000 552.59679 3.39% - 0s 0 0 552.60567 0 86 572.00000 552.60567 3.39% - 0s 0 0 552.63994 0 73 572.00000 552.63994 3.38% - 1s 0 0 552.63994 0 77 572.00000 552.63994 3.38% - 1s 0 0 552.65294 0 79 572.00000 552.65294 3.38% - 1s 0 0 552.65294 0 83 572.00000 552.65294 3.38% - 1s 0 0 552.66675 0 80 572.00000 552.66675 3.38% - 1s 0 0 552.66931 0 85 572.00000 552.66931 3.38% - 1s 0 0 552.66942 0 84 572.00000 552.66942 3.38% - 1s 0 0 552.68553 0 83 572.00000 552.68553 3.38% - 1s 0 0 552.70370 0 80 572.00000 552.70370 3.37% - 1s 0 0 552.70528 0 85 572.00000 552.70528 3.37% - 1s 0 0 552.70834 0 86 572.00000 552.70834 3.37% - 1s 0 0 552.70986 0 86 572.00000 552.70986 3.37% - 1s 0 0 552.70986 0 86 572.00000 552.70986 3.37% - 2s H 0 0 567.0000000 552.70986 2.52% - 2s 0 2 552.71329 0 86 567.00000 552.71329 2.52% - 2s * 198 127 19 566.0000000 554.82796 1.97% 15.0 3s 609 275 557.19737 15 83 566.00000 557.19737 1.56% 13.1 5s 3327 478 565.00000 22 44 566.00000 561.33333 0.82% 12.2 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 14 Explored 5439 nodes (61082 simplex iterations) in 12.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (10, 51), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (22, 35), (22, 30), (6, 50), (30, 51), (31, 35)] adding cut for [(2, 23), (3, 17), (3, 21), (4, 37), (4, 29), (12, 39), (17, 39), (21, 36), (23, 32), (36, 37), (29, 32)] Optimize a model with 647 rows, 1275 columns and 118019 nonzeros Presolve time: 0.07s Presolved: 647 rows, 1275 columns, 118019 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 551.96668 0 67 569.00000 551.96668 2.99% - 0s 0 0 552.15467 0 69 569.00000 552.15467 2.96% - 0s 0 0 552.18950 0 69 569.00000 552.18950 2.95% - 0s 0 0 552.19808 0 71 569.00000 552.19808 2.95% - 0s 0 0 552.25591 0 77 569.00000 552.25591 2.94% - 0s 0 0 552.36683 0 68 569.00000 552.36683 2.92% - 0s 0 0 552.36765 0 71 569.00000 552.36765 2.92% - 0s 0 0 552.40905 0 74 569.00000 552.40905 2.92% - 0s 0 0 552.41964 0 78 569.00000 552.41964 2.91% - 0s 0 0 552.42766 0 76 569.00000 552.42766 2.91% - 0s 0 0 552.43908 0 79 569.00000 552.43908 2.91% - 0s 0 0 552.45576 0 72 569.00000 552.45576 2.91% - 0s 0 0 552.45576 0 77 569.00000 552.45576 2.91% - 0s 0 0 552.51449 0 71 569.00000 552.51449 2.90% - 1s 0 0 552.52305 0 80 569.00000 552.52305 2.90% - 1s 0 0 552.55257 0 77 569.00000 552.55257 2.89% - 1s 0 0 552.55338 0 82 569.00000 552.55338 2.89% - 1s 0 0 552.58379 0 72 569.00000 552.58379 2.89% - 1s 0 0 552.58379 0 76 569.00000 552.58379 2.89% - 1s 0 0 552.59411 0 79 569.00000 552.59411 2.88% - 1s 0 0 552.61767 0 80 569.00000 552.61767 2.88% - 1s 0 0 552.62092 0 80 569.00000 552.62092 2.88% - 1s 0 0 552.62128 0 83 569.00000 552.62128 2.88% - 1s 0 0 552.62356 0 78 569.00000 552.62356 2.88% - 1s 0 0 552.62366 0 79 569.00000 552.62366 2.88% - 1s 0 0 552.62808 0 80 569.00000 552.62808 2.88% - 1s 0 0 552.63055 0 82 569.00000 552.63055 2.88% - 1s 0 2 552.63563 0 82 569.00000 552.63563 2.88% - 2s * 159 100 27 566.0000000 554.50229 2.03% 13.2 3s 609 322 558.20000 10 82 566.00000 556.33977 1.71% 11.9 5s 3021 541 564.68750 26 49 566.00000 560.30435 1.01% 12.6 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 6214 nodes (71155 simplex iterations) in 14.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 17), (3, 33), (2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 51), (17, 39), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 648 rows, 1275 columns and 118190 nonzeros Presolve time: 0.07s Presolved: 648 rows, 1275 columns, 118190 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.80458 0 63 567.00000 551.80458 2.68% - 0s 0 0 551.93783 0 68 567.00000 551.93783 2.66% - 0s 0 0 552.16921 0 69 567.00000 552.16921 2.62% - 0s 0 0 552.19401 0 72 567.00000 552.19401 2.61% - 0s 0 0 552.27356 0 66 567.00000 552.27356 2.60% - 0s 0 0 552.28179 0 70 567.00000 552.28179 2.60% - 0s 0 0 552.33333 0 62 567.00000 552.33333 2.59% - 0s 0 0 552.33333 0 66 567.00000 552.33333 2.59% - 0s 0 0 552.35615 0 70 567.00000 552.35615 2.58% - 0s 0 0 552.36379 0 71 567.00000 552.36379 2.58% - 0s 0 0 552.37575 0 70 567.00000 552.37575 2.58% - 0s 0 0 552.40610 0 66 567.00000 552.40610 2.57% - 0s 0 0 552.40778 0 70 567.00000 552.40778 2.57% - 0s 0 0 552.41790 0 74 567.00000 552.41790 2.57% - 0s 0 0 552.42106 0 77 567.00000 552.42106 2.57% - 0s 0 0 552.44602 0 68 567.00000 552.44602 2.57% - 0s 0 0 552.45831 0 73 567.00000 552.45831 2.56% - 1s 0 2 552.45862 0 73 567.00000 552.45862 2.56% - 1s H 251 154 566.0000000 555.11392 1.92% 14.1 2s 823 404 562.46000 29 52 566.00000 556.62290 1.66% 13.7 5s 3787 726 565.00000 31 26 566.00000 560.50000 0.97% 12.0 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 6936 nodes (77421 simplex iterations) in 14.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 33), (3, 23), (4, 37), (4, 29), (9, 23), (9, 27), (12, 39), (17, 51), (17, 39), (35, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 649 rows, 1275 columns and 118343 nonzeros Presolve time: 0.07s Presolved: 649 rows, 1275 columns, 118343 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.25152 0 73 1672.00000 552.25152 67.0% - 0s 0 0 552.26270 0 76 1672.00000 552.26270 67.0% - 0s 0 0 552.35624 0 64 1672.00000 552.35624 67.0% - 0s 0 0 552.36040 0 77 1672.00000 552.36040 67.0% - 0s 0 0 552.37395 0 75 1672.00000 552.37395 67.0% - 0s H 0 0 695.0000000 552.37395 20.5% - 0s H 0 0 581.0000000 552.37395 4.93% - 0s H 0 0 573.0000000 552.37395 3.60% - 1s 0 0 552.38062 0 73 573.00000 552.38062 3.60% - 1s 0 0 552.38062 0 56 573.00000 552.38062 3.60% - 1s 0 0 552.39437 0 67 573.00000 552.39437 3.60% - 1s 0 0 552.43191 0 75 573.00000 552.43191 3.59% - 1s 0 0 552.45167 0 70 573.00000 552.45167 3.59% - 1s 0 0 552.45781 0 78 573.00000 552.45781 3.59% - 1s 0 0 552.48052 0 73 573.00000 552.48052 3.58% - 1s 0 0 552.49921 0 72 573.00000 552.49921 3.58% - 1s 0 0 552.56174 0 79 573.00000 552.56174 3.57% - 1s 0 0 552.56699 0 78 573.00000 552.56699 3.57% - 1s 0 0 552.57220 0 80 573.00000 552.57220 3.57% - 1s 0 0 552.57572 0 83 573.00000 552.57572 3.56% - 1s 0 2 552.57895 0 83 573.00000 552.57895 3.56% - 2s * 105 78 32 570.0000000 553.83333 2.84% 12.9 3s * 181 104 23 567.0000000 554.60022 2.19% 13.2 3s 607 335 563.66667 21 83 567.00000 556.42593 1.86% 12.6 5s * 835 367 41 566.0000000 556.42593 1.69% 13.8 6s 3140 739 cutoff 29 566.00000 560.00000 1.06% 12.6 10s 6387 397 cutoff 29 566.00000 563.00000 0.53% 11.7 15s Cutting planes: Gomory: 1 MIR: 3 Zero half: 10 Explored 7127 nodes (81140 simplex iterations) in 16.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (11, 40), (11, 50), (14, 26), (14, 42), (15, 26), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45), (45, 46)] Optimize a model with 650 rows, 1275 columns and 118668 nonzeros Presolve time: 0.07s Presolved: 650 rows, 1275 columns, 118668 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.84524 4.03% - 0s 0 0 551.50986 0 62 574.00000 551.50986 3.92% - 0s 0 0 551.50986 0 56 574.00000 551.50986 3.92% - 0s 0 0 551.92761 0 64 574.00000 551.92761 3.85% - 0s 0 0 552.17116 0 72 574.00000 552.17116 3.80% - 0s 0 0 552.23037 0 72 574.00000 552.23037 3.79% - 0s 0 0 552.26132 0 70 574.00000 552.26132 3.79% - 0s 0 0 552.27191 0 73 574.00000 552.27191 3.79% - 0s 0 0 552.29203 0 75 574.00000 552.29203 3.78% - 0s 0 0 552.33793 0 77 574.00000 552.33793 3.77% - 0s 0 0 552.35231 0 82 574.00000 552.35231 3.77% - 0s 0 0 552.38559 0 78 574.00000 552.38559 3.77% - 0s 0 0 552.40375 0 81 574.00000 552.40375 3.76% - 0s 0 0 552.41648 0 82 574.00000 552.41648 3.76% - 0s 0 0 552.47820 0 83 574.00000 552.47820 3.75% - 1s 0 0 552.49456 0 83 574.00000 552.49456 3.75% - 1s 0 0 552.57830 0 80 574.00000 552.57830 3.73% - 1s 0 0 552.64621 0 73 574.00000 552.64621 3.72% - 1s 0 0 552.64621 0 76 574.00000 552.64621 3.72% - 1s 0 0 552.65783 0 75 574.00000 552.65783 3.72% - 1s 0 0 552.65783 0 78 574.00000 552.65783 3.72% - 1s 0 0 552.68672 0 75 574.00000 552.68672 3.71% - 1s 0 0 552.69832 0 80 574.00000 552.69832 3.71% - 1s H 0 0 570.0000000 552.69832 3.04% - 1s H 0 0 568.0000000 552.69832 2.69% - 2s 0 2 552.82891 0 79 568.00000 552.82891 2.67% - 2s * 104 76 32 567.0000000 554.72152 2.17% 13.4 2s * 325 181 17 566.0000000 555.36842 1.88% 14.4 3s 610 270 557.16129 11 76 566.00000 557.16129 1.56% 13.7 5s 3456 479 563.87500 25 49 566.00000 561.61111 0.78% 12.1 10s Cutting planes: Gomory: 2 MIR: 3 Zero half: 11 Explored 5159 nodes (57312 simplex iterations) in 11.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (6, 50), (41, 42), (11, 40), (11, 50), (16, 38), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 651 rows, 1275 columns and 118773 nonzeros Presolve time: 0.07s Presolved: 651 rows, 1275 columns, 118773 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.45927 0 68 568.00000 552.45927 2.74% - 0s 0 0 552.46196 0 75 568.00000 552.46196 2.74% - 0s 0 0 552.48612 0 72 568.00000 552.48612 2.73% - 0s 0 0 552.49394 0 75 568.00000 552.49394 2.73% - 0s 0 0 552.50906 0 79 568.00000 552.50906 2.73% - 0s 0 0 552.54368 0 77 568.00000 552.54368 2.72% - 0s 0 0 552.61175 0 75 568.00000 552.61175 2.71% - 0s 0 0 552.62233 0 78 568.00000 552.62233 2.71% - 0s 0 0 552.65591 0 77 568.00000 552.65591 2.70% - 0s 0 0 552.65591 0 80 568.00000 552.65591 2.70% - 1s 0 0 552.69682 0 83 568.00000 552.69682 2.69% - 1s 0 0 552.69682 0 86 568.00000 552.69682 2.69% - 1s 0 0 552.70477 0 76 568.00000 552.70477 2.69% - 1s 0 0 552.70477 0 79 568.00000 552.70477 2.69% - 1s 0 0 552.71423 0 78 568.00000 552.71423 2.69% - 1s 0 0 552.71688 0 85 568.00000 552.71688 2.69% - 1s 0 0 552.72144 0 86 568.00000 552.72144 2.69% - 1s 0 0 552.72697 0 84 568.00000 552.72697 2.69% - 1s 0 0 552.72811 0 87 568.00000 552.72811 2.69% - 1s 0 0 552.73432 0 85 568.00000 552.73432 2.69% - 1s 0 0 552.73432 0 85 568.00000 552.73432 2.69% - 1s H 0 0 567.0000000 552.73432 2.52% - 2s 0 2 552.73689 0 85 567.00000 552.73689 2.52% - 2s * 201 128 20 566.0000000 554.74419 1.99% 13.2 2s 612 313 563.80000 12 85 566.00000 556.64899 1.65% 12.6 5s 3160 584 562.05556 25 50 566.00000 560.44348 0.98% 12.7 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 18 Explored 6342 nodes (72892 simplex iterations) in 14.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 50), (41, 42), (10, 35), (10, 50), (11, 40), (11, 31), (16, 45), (16, 46), (43, 45), (20, 41), (20, 43), (14, 26), (14, 42), (31, 35)] Optimize a model with 652 rows, 1275 columns and 118909 nonzeros Presolve time: 0.07s Presolved: 652 rows, 1275 columns, 118909 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.45927 0 69 568.00000 552.45927 2.74% - 0s 0 0 552.46196 0 76 568.00000 552.46196 2.74% - 0s 0 0 552.48612 0 73 568.00000 552.48612 2.73% - 0s 0 0 552.49419 0 73 568.00000 552.49419 2.73% - 0s 0 0 552.49419 0 77 568.00000 552.49419 2.73% - 0s 0 0 552.54172 0 70 568.00000 552.54172 2.72% - 0s 0 0 552.54681 0 73 568.00000 552.54681 2.72% - 0s 0 0 552.56717 0 76 568.00000 552.56717 2.72% - 0s 0 0 552.56717 0 79 568.00000 552.56717 2.72% - 0s 0 0 552.60433 0 74 568.00000 552.60433 2.71% - 1s 0 0 552.60433 0 78 568.00000 552.60433 2.71% - 1s 0 0 552.64510 0 73 568.00000 552.64510 2.70% - 1s 0 0 552.64510 0 76 568.00000 552.64510 2.70% - 1s 0 0 552.70037 0 67 568.00000 552.70037 2.69% - 1s 0 0 552.70037 0 71 568.00000 552.70037 2.69% - 1s 0 0 552.71783 0 75 568.00000 552.71783 2.69% - 1s 0 0 552.71787 0 81 568.00000 552.71787 2.69% - 1s 0 0 552.72971 0 75 568.00000 552.72971 2.69% - 1s 0 0 552.73471 0 80 568.00000 552.73471 2.69% - 1s 0 0 552.76659 0 77 568.00000 552.76659 2.68% - 1s 0 0 552.76754 0 77 568.00000 552.76754 2.68% - 1s 0 0 552.77392 0 78 568.00000 552.77392 2.68% - 1s 0 0 552.77392 0 81 568.00000 552.77392 2.68% - 1s 0 0 552.79416 0 84 568.00000 552.79416 2.68% - 1s 0 0 552.80157 0 80 568.00000 552.80157 2.68% - 1s 0 0 552.80563 0 81 568.00000 552.80563 2.68% - 1s 0 0 552.81064 0 84 568.00000 552.81064 2.67% - 1s 0 0 552.81263 0 84 568.00000 552.81263 2.67% - 1s 0 0 552.81263 0 84 568.00000 552.81263 2.67% - 2s 0 2 552.81853 0 84 568.00000 552.81853 2.67% - 2s * 148 89 26 567.0000000 554.40442 2.22% 14.6 3s 606 318 563.33333 17 84 567.00000 557.04472 1.76% 13.2 5s H 690 328 566.0000000 557.04472 1.58% 14.2 6s 2896 560 563.75000 19 33 566.00000 560.40000 0.99% 12.7 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 5643 nodes (65253 simplex iterations) in 14.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 44), (8, 27), (9, 32), (9, 27), (10, 39), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 25), (4, 37), (4, 29), (29, 32)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 43), (11, 50), (11, 31), (18, 38), (18, 45), (16, 38), (16, 46), (20, 41), (20, 42), (14, 42), (14, 26), (15, 26), (31, 40)] Optimize a model with 654 rows, 1275 columns and 119215 nonzeros Presolve time: 0.07s Presolved: 654 rows, 1275 columns, 119215 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.25152 0 73 1672.00000 552.25152 67.0% - 0s 0 0 552.26270 0 76 1672.00000 552.26270 67.0% - 0s 0 0 552.35624 0 64 1672.00000 552.35624 67.0% - 0s 0 0 552.36040 0 77 1672.00000 552.36040 67.0% - 0s 0 0 552.37395 0 75 1672.00000 552.37395 67.0% - 0s H 0 0 732.0000000 552.37395 24.5% - 0s H 0 0 581.0000000 552.37395 4.93% - 0s H 0 0 573.0000000 552.37395 3.60% - 1s 0 0 552.38062 0 73 573.00000 552.38062 3.60% - 1s 0 0 552.38062 0 56 573.00000 552.38062 3.60% - 1s 0 0 552.39437 0 67 573.00000 552.39437 3.60% - 1s 0 0 552.43191 0 75 573.00000 552.43191 3.59% - 1s 0 0 552.45167 0 70 573.00000 552.45167 3.59% - 1s 0 0 552.45781 0 78 573.00000 552.45781 3.59% - 1s 0 0 552.48279 0 77 573.00000 552.48279 3.58% - 1s 0 0 552.49621 0 74 573.00000 552.49621 3.58% - 1s 0 0 552.52063 0 85 573.00000 552.52063 3.57% - 1s 0 0 552.56855 0 77 573.00000 552.56855 3.57% - 1s 0 0 552.57750 0 80 573.00000 552.57750 3.56% - 1s 0 0 552.58400 0 82 573.00000 552.58400 3.56% - 1s 0 0 552.60392 0 87 573.00000 552.60392 3.56% - 1s 0 0 552.61828 0 84 573.00000 552.61828 3.56% - 1s 0 0 552.62110 0 83 573.00000 552.62110 3.56% - 1s 0 0 552.67079 0 77 573.00000 552.67079 3.55% - 1s 0 0 552.69531 0 81 573.00000 552.69531 3.54% - 1s 0 0 552.70199 0 83 573.00000 552.70199 3.54% - 1s 0 0 552.72217 0 81 573.00000 552.72217 3.54% - 1s 0 0 552.73279 0 86 573.00000 552.73279 3.54% - 1s 0 0 552.75219 0 80 573.00000 552.75219 3.53% - 1s 0 0 552.75219 0 83 573.00000 552.75219 3.53% - 2s 0 0 552.78787 0 70 573.00000 552.78787 3.53% - 2s 0 0 552.81134 0 72 573.00000 552.81134 3.52% - 2s 0 0 552.82282 0 76 573.00000 552.82282 3.52% - 2s 0 0 552.83565 0 85 573.00000 552.83565 3.52% - 2s 0 0 552.85431 0 76 573.00000 552.85431 3.52% - 2s 0 0 552.86062 0 81 573.00000 552.86062 3.51% - 2s 0 0 552.86182 0 80 573.00000 552.86182 3.51% - 2s 0 0 552.86182 0 80 573.00000 552.86182 3.51% - 2s 0 0 552.86182 0 79 573.00000 552.86182 3.51% - 2s 0 2 552.90380 0 79 573.00000 552.90380 3.51% - 3s * 48 39 42 570.0000000 554.10371 2.79% 14.5 3s * 144 95 37 568.0000000 554.57480 2.36% 12.0 3s H 243 129 566.0000000 555.13889 1.92% 13.7 4s 601 279 562.25000 19 73 566.00000 557.00000 1.59% 13.2 5s 2504 635 563.00000 28 37 566.00000 559.00873 1.24% 12.2 10s 5883 799 565.00000 32 24 566.00000 561.71429 0.76% 11.5 15s Cutting planes: Gomory: 1 MIR: 3 Zero half: 14 Explored 8257 nodes (90448 simplex iterations) in 18.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 39), (9, 23), (9, 27), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35), (31, 39)] adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (10, 50), (10, 51), (11, 40), (11, 50), (16, 38), (16, 46), (17, 51)] Optimize a model with 656 rows, 1275 columns and 119401 nonzeros Presolve time: 0.07s Presolved: 656 rows, 1275 columns, 119401 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.92761 0 64 572.00000 551.92761 3.51% - 0s 0 0 552.18690 0 72 572.00000 552.18690 3.46% - 0s 0 0 552.34030 0 74 572.00000 552.34030 3.44% - 0s 0 0 552.36816 0 76 572.00000 552.36816 3.43% - 0s 0 0 552.37424 0 77 572.00000 552.37424 3.43% - 0s 0 0 552.38428 0 79 572.00000 552.38428 3.43% - 0s 0 0 552.39869 0 78 572.00000 552.39869 3.43% - 0s 0 0 552.40714 0 82 572.00000 552.40714 3.43% - 0s 0 0 552.45729 0 77 572.00000 552.45729 3.42% - 0s 0 0 552.46554 0 82 572.00000 552.46554 3.42% - 0s 0 0 552.53300 0 76 572.00000 552.53300 3.40% - 0s 0 0 552.57447 0 67 572.00000 552.57447 3.40% - 0s 0 0 552.57572 0 75 572.00000 552.57572 3.40% - 1s 0 0 552.59460 0 74 572.00000 552.59460 3.39% - 1s 0 0 552.61053 0 84 572.00000 552.61053 3.39% - 1s 0 0 552.62238 0 81 572.00000 552.62238 3.39% - 1s 0 0 552.62700 0 83 572.00000 552.62700 3.39% - 1s 0 0 552.66562 0 74 572.00000 552.66562 3.38% - 1s 0 0 552.68193 0 76 572.00000 552.68193 3.38% - 1s 0 0 552.68655 0 80 572.00000 552.68655 3.38% - 1s 0 0 552.69656 0 80 572.00000 552.69656 3.37% - 1s 0 0 552.72288 0 80 572.00000 552.72288 3.37% - 1s 0 0 552.72733 0 82 572.00000 552.72733 3.37% - 1s 0 0 552.73994 0 80 572.00000 552.73994 3.37% - 1s 0 0 552.74314 0 76 572.00000 552.74314 3.37% - 1s 0 0 552.74350 0 80 572.00000 552.74350 3.37% - 1s 0 0 552.74420 0 80 572.00000 552.74420 3.37% - 1s 0 0 552.74420 0 80 572.00000 552.74420 3.37% - 2s 0 2 552.76834 0 80 572.00000 552.76834 3.36% - 2s H 28 28 568.0000000 553.62074 2.53% 14.8 3s * 78 54 28 566.0000000 553.96504 2.13% 14.2 3s 607 296 558.79452 11 81 566.00000 556.88155 1.61% 13.0 5s 2944 640 563.71875 20 50 566.00000 559.78378 1.10% 12.7 10s 6135 385 564.83333 28 37 566.00000 562.70000 0.58% 11.8 15s Cutting planes: Gomory: 1 MIR: 3 Zero half: 14 Explored 7014 nodes (80234 simplex iterations) in 15.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(16, 34), (16, 38), (34, 46), (5, 48), (5, 18), (41, 43), (43, 45), (45, 46), (15, 26), (18, 38), (20, 41), (20, 42), (14, 42), (14, 26)] adding cut for [(3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 658 rows, 1275 columns and 119597 nonzeros Presolve time: 0.07s Presolved: 658 rows, 1275 columns, 119597 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.92761 0 64 571.00000 551.92761 3.34% - 0s 0 0 552.18591 0 71 571.00000 552.18591 3.29% - 0s 0 0 552.21571 0 72 571.00000 552.21571 3.29% - 0s 0 0 552.25443 0 71 571.00000 552.25443 3.28% - 0s 0 0 552.29566 0 76 571.00000 552.29566 3.28% - 0s 0 0 552.37651 0 74 571.00000 552.37651 3.26% - 0s 0 0 552.40239 0 78 571.00000 552.40239 3.26% - 0s 0 0 552.42592 0 81 571.00000 552.42592 3.25% - 0s 0 0 552.47130 0 83 571.00000 552.47130 3.24% - 0s 0 0 552.61688 0 72 571.00000 552.61688 3.22% - 0s 0 0 552.61688 0 75 571.00000 552.61688 3.22% - 0s 0 0 552.64844 0 72 571.00000 552.64844 3.21% - 0s 0 0 552.64844 0 75 571.00000 552.64844 3.21% - 0s 0 0 552.65152 0 71 571.00000 552.65152 3.21% - 1s 0 0 552.65192 0 78 571.00000 552.65192 3.21% - 1s 0 0 552.66495 0 82 571.00000 552.66495 3.21% - 1s 0 0 552.66495 0 85 571.00000 552.66495 3.21% - 1s 0 0 552.70364 0 75 571.00000 552.70364 3.20% - 1s 0 0 552.72032 0 75 571.00000 552.72032 3.20% - 1s 0 0 552.74273 0 74 571.00000 552.74273 3.20% - 1s 0 0 552.74273 0 77 571.00000 552.74273 3.20% - 1s 0 0 552.77364 0 73 571.00000 552.77364 3.19% - 1s 0 0 552.77364 0 77 571.00000 552.77364 3.19% - 1s 0 0 552.82535 0 82 571.00000 552.82535 3.18% - 1s H 0 0 567.0000000 552.82535 2.50% - 1s 0 0 552.83331 0 85 567.00000 552.83331 2.50% - 1s 0 2 553.10127 0 85 567.00000 553.10127 2.45% - 2s 51 36 559.66667 28 31 567.00000 554.30252 2.24% 24.7 5s * 66 36 36 566.0000000 554.30252 2.07% 24.5 5s 2451 772 559.89691 31 50 566.00000 559.28571 1.19% 13.2 10s 5064 898 564.33333 28 29 566.00000 560.84211 0.91% 12.8 15s 7904 446 564.00000 27 18 566.00000 562.71429 0.58% 12.3 20s Cutting planes: Gomory: 9 MIR: 3 Zero half: 31 Mod-K: 1 Explored 8840 nodes (106248 simplex iterations) in 21.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 18), (5, 19), (9, 27), (11, 40), (11, 50), (16, 45), (16, 46), (18, 45), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (36, 37)] Optimize a model with 659 rows, 1275 columns and 119828 nonzeros Presolve time: 0.07s Presolved: 659 rows, 1275 columns, 119828 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.84524 4.03% - 0s 0 0 551.50986 0 62 574.00000 551.50986 3.92% - 0s 0 0 551.50986 0 56 574.00000 551.50986 3.92% - 0s 0 0 551.92761 0 64 574.00000 551.92761 3.85% - 0s 0 0 552.17116 0 72 574.00000 552.17116 3.80% - 0s 0 0 552.23037 0 72 574.00000 552.23037 3.79% - 0s 0 0 552.26132 0 70 574.00000 552.26132 3.79% - 0s 0 0 552.27191 0 73 574.00000 552.27191 3.79% - 0s 0 0 552.29203 0 75 574.00000 552.29203 3.78% - 0s 0 0 552.33793 0 77 574.00000 552.33793 3.77% - 0s 0 0 552.35231 0 82 574.00000 552.35231 3.77% - 0s 0 0 552.39492 0 79 574.00000 552.39492 3.76% - 0s 0 0 552.40662 0 81 574.00000 552.40662 3.76% - 0s 0 0 552.43714 0 79 574.00000 552.43714 3.76% - 0s 0 0 552.46582 0 77 574.00000 552.46582 3.75% - 1s 0 0 552.50631 0 76 574.00000 552.50631 3.74% - 1s 0 0 552.55685 0 77 574.00000 552.55685 3.74% - 1s 0 0 552.57239 0 78 574.00000 552.57239 3.73% - 1s 0 0 552.57666 0 83 574.00000 552.57666 3.73% - 1s 0 0 552.59481 0 79 574.00000 552.59481 3.73% - 1s 0 0 552.61222 0 83 574.00000 552.61222 3.73% - 1s 0 0 552.61443 0 87 574.00000 552.61443 3.73% - 1s 0 0 552.63416 0 84 574.00000 552.63416 3.72% - 1s 0 0 552.63416 0 84 574.00000 552.63416 3.72% - 1s 0 2 552.65429 0 84 574.00000 552.65429 3.72% - 2s * 111 76 39 572.0000000 553.77226 3.19% 12.9 3s * 149 79 32 568.0000000 554.76718 2.33% 12.7 3s * 214 107 27 566.0000000 554.97015 1.95% 13.3 3s 607 257 561.81818 12 84 566.00000 556.52800 1.67% 13.2 5s 3019 536 563.93750 18 50 566.00000 560.40559 0.99% 12.7 10s Cutting planes: Gomory: 2 MIR: 3 Zero half: 11 Mod-K: 1 Explored 5863 nodes (67994 simplex iterations) in 14.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 50), (10, 17), (10, 50), (17, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (5, 19), (39, 51), (11, 40), (11, 31), (12, 39), (16, 38), (16, 46), (18, 38), (31, 35)] Optimize a model with 661 rows, 1275 columns and 120024 nonzeros Presolve time: 0.07s Presolved: 661 rows, 1275 columns, 120024 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.00462 0 68 569.00000 552.00462 2.99% - 0s 0 0 552.16780 0 67 569.00000 552.16780 2.96% - 0s 0 0 552.18686 0 68 569.00000 552.18686 2.95% - 0s 0 0 552.22584 0 71 569.00000 552.22584 2.95% - 0s 0 0 552.26006 0 76 569.00000 552.26006 2.94% - 0s 0 0 552.32237 0 75 569.00000 552.32237 2.93% - 0s 0 0 552.38309 0 70 569.00000 552.38309 2.92% - 0s 0 0 552.38435 0 73 569.00000 552.38435 2.92% - 0s 0 0 552.41188 0 74 569.00000 552.41188 2.92% - 0s 0 0 552.41202 0 78 569.00000 552.41202 2.92% - 0s 0 0 552.41722 0 82 569.00000 552.41722 2.91% - 0s 0 0 552.45244 0 77 569.00000 552.45244 2.91% - 0s 0 0 552.45529 0 80 569.00000 552.45529 2.91% - 1s 0 0 552.47761 0 74 569.00000 552.47761 2.90% - 1s 0 0 552.47761 0 78 569.00000 552.47761 2.90% - 1s 0 0 552.49212 0 78 569.00000 552.49212 2.90% - 1s 0 0 552.49353 0 74 569.00000 552.49353 2.90% - 1s 0 0 552.49476 0 76 569.00000 552.49476 2.90% - 1s 0 0 552.51235 0 76 569.00000 552.51235 2.90% - 1s 0 0 552.54082 0 76 569.00000 552.54082 2.89% - 1s 0 0 552.54222 0 77 569.00000 552.54222 2.89% - 1s 0 0 552.55789 0 81 569.00000 552.55789 2.89% - 1s 0 0 552.56289 0 79 569.00000 552.56289 2.89% - 1s 0 0 552.56461 0 75 569.00000 552.56461 2.89% - 1s 0 0 552.56488 0 80 569.00000 552.56488 2.89% - 1s 0 0 552.58425 0 85 569.00000 552.58425 2.89% - 1s 0 0 552.58450 0 87 569.00000 552.58450 2.88% - 1s 0 0 552.58989 0 80 569.00000 552.58989 2.88% - 1s 0 0 552.60377 0 80 569.00000 552.60377 2.88% - 1s 0 0 552.70114 0 80 569.00000 552.70114 2.86% - 1s 0 0 552.71627 0 80 569.00000 552.71627 2.86% - 1s 0 0 552.72637 0 76 569.00000 552.72637 2.86% - 1s 0 0 552.73386 0 73 569.00000 552.73386 2.86% - 1s 0 0 552.73544 0 77 569.00000 552.73544 2.86% - 2s 0 0 552.73562 0 78 569.00000 552.73562 2.86% - 2s 0 0 552.73562 0 81 569.00000 552.73562 2.86% - 2s 0 0 552.73562 0 81 569.00000 552.73562 2.86% - 2s H 0 0 568.0000000 552.73562 2.69% - 2s 0 2 552.74625 0 81 568.00000 552.74625 2.69% - 2s * 215 146 30 567.0000000 554.80000 2.15% 13.4 3s 609 343 558.73913 5 82 567.00000 556.60241 1.83% 12.4 5s * 945 396 29 566.0000000 556.60241 1.66% 13.7 6s 2975 701 561.52586 29 56 566.00000 559.71429 1.11% 12.7 10s 5982 574 564.50000 33 27 566.00000 562.41667 0.63% 12.1 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 7256 nodes (84125 simplex iterations) in 16.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (17, 22), (17, 51), (18, 38), (18, 45), (19, 26), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 662 rows, 1275 columns and 120430 nonzeros Presolve time: 0.07s Presolved: 662 rows, 1275 columns, 120430 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 152 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 551.98201 0 66 569.00000 551.98201 2.99% - 0s 0 0 552.02076 0 69 569.00000 552.02076 2.98% - 0s 0 0 552.15501 0 70 569.00000 552.15501 2.96% - 0s 0 0 552.23527 0 74 569.00000 552.23527 2.95% - 0s 0 0 552.24553 0 75 569.00000 552.24553 2.94% - 0s 0 0 552.34540 0 70 569.00000 552.34540 2.93% - 0s 0 0 552.35582 0 72 569.00000 552.35582 2.93% - 0s 0 0 552.40915 0 73 569.00000 552.40915 2.92% - 0s 0 0 552.41314 0 77 569.00000 552.41314 2.92% - 0s 0 0 552.45592 0 74 569.00000 552.45592 2.91% - 0s 0 0 552.45592 0 77 569.00000 552.45592 2.91% - 0s 0 0 552.48962 0 70 569.00000 552.48962 2.90% - 0s 0 0 552.48962 0 73 569.00000 552.48962 2.90% - 0s 0 0 552.49929 0 71 569.00000 552.49929 2.90% - 1s 0 0 552.49929 0 75 569.00000 552.49929 2.90% - 1s 0 0 552.51445 0 76 569.00000 552.51445 2.90% - 1s 0 0 552.51472 0 79 569.00000 552.51472 2.90% - 1s 0 0 552.52234 0 72 569.00000 552.52234 2.90% - 1s 0 0 552.52300 0 75 569.00000 552.52300 2.90% - 1s 0 0 552.54604 0 81 569.00000 552.54604 2.89% - 1s 0 0 552.54883 0 77 569.00000 552.54883 2.89% - 1s 0 0 552.55151 0 79 569.00000 552.55151 2.89% - 1s 0 0 552.56191 0 74 569.00000 552.56191 2.89% - 1s 0 0 552.58052 0 74 569.00000 552.58052 2.89% - 1s 0 0 552.58955 0 77 569.00000 552.58955 2.88% - 1s 0 0 552.59249 0 81 569.00000 552.59249 2.88% - 1s 0 0 552.59372 0 82 569.00000 552.59372 2.88% - 1s 0 0 552.61193 0 81 569.00000 552.61193 2.88% - 1s 0 0 552.62094 0 83 569.00000 552.62094 2.88% - 1s 0 0 552.67506 0 75 569.00000 552.67506 2.87% - 1s 0 0 552.68407 0 80 569.00000 552.68407 2.87% - 1s 0 0 552.71839 0 80 569.00000 552.71839 2.86% - 1s 0 0 552.72037 0 80 569.00000 552.72037 2.86% - 1s 0 0 552.72168 0 82 569.00000 552.72168 2.86% - 1s 0 0 552.72168 0 82 569.00000 552.72168 2.86% - 2s 0 2 552.72922 0 82 569.00000 552.72922 2.86% - 2s H 239 154 568.0000000 554.69967 2.34% 12.9 3s * 281 165 24 567.0000000 554.71528 2.17% 12.3 3s 605 327 562.47059 21 78 567.00000 556.04054 1.93% 12.8 5s * 714 334 38 566.0000000 556.04054 1.76% 13.9 6s 2406 712 562.25000 31 52 566.00000 558.56672 1.31% 12.9 10s 5492 1121 563.90000 22 51 566.00000 560.80478 0.92% 12.0 15s 8814 533 564.87879 30 47 566.00000 563.06250 0.52% 11.4 20s Cutting planes: Gomory: 5 MIR: 2 Zero half: 10 Explored 9717 nodes (107359 simplex iterations) in 21.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 39), (39, 50), (10, 50), (10, 51), (21, 36), (21, 30), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (5, 19), (5, 18), (11, 40), (11, 31), (16, 38), (16, 46), (17, 35), (18, 38), (31, 35)] Optimize a model with 664 rows, 1275 columns and 120626 nonzeros Presolve time: 0.07s Presolved: 664 rows, 1275 columns, 120626 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.84524 2.68% - 0s 0 0 551.50986 0 62 566.00000 551.50986 2.56% - 0s 0 0 551.50986 0 56 566.00000 551.50986 2.56% - 0s 0 0 551.80458 0 63 566.00000 551.80458 2.51% - 0s 0 0 551.96170 0 67 566.00000 551.96170 2.48% - 0s 0 0 552.15996 0 71 566.00000 552.15996 2.45% - 0s 0 0 552.18151 0 72 566.00000 552.18151 2.44% - 0s 0 0 552.32257 0 62 566.00000 552.32257 2.42% - 0s 0 0 552.32257 0 66 566.00000 552.32257 2.42% - 0s 0 0 552.35537 0 65 566.00000 552.35537 2.41% - 0s 0 0 552.35634 0 69 566.00000 552.35634 2.41% - 0s 0 0 552.43159 0 69 566.00000 552.43159 2.40% - 0s 0 0 552.43810 0 74 566.00000 552.43810 2.40% - 0s 0 0 552.45497 0 74 566.00000 552.45497 2.39% - 0s 0 0 552.46432 0 71 566.00000 552.46432 2.39% - 0s 0 0 552.47585 0 74 566.00000 552.47585 2.39% - 0s 0 0 552.48658 0 77 566.00000 552.48658 2.39% - 0s 0 0 552.50173 0 73 566.00000 552.50173 2.38% - 0s 0 0 552.53214 0 72 566.00000 552.53214 2.38% - 1s 0 0 552.53577 0 74 566.00000 552.53577 2.38% - 1s 0 0 552.54407 0 77 566.00000 552.54407 2.38% - 1s 0 0 552.54407 0 80 566.00000 552.54407 2.38% - 1s 0 0 552.54608 0 76 566.00000 552.54608 2.38% - 1s 0 0 552.54608 0 79 566.00000 552.54608 2.38% - 1s 0 0 552.55974 0 80 566.00000 552.55974 2.37% - 1s 0 0 552.56441 0 83 566.00000 552.56441 2.37% - 1s 0 0 552.58995 0 69 566.00000 552.58995 2.37% - 1s 0 0 552.59323 0 77 566.00000 552.59323 2.37% - 1s 0 0 552.60044 0 74 566.00000 552.60044 2.37% - 1s 0 0 552.60044 0 77 566.00000 552.60044 2.37% - 1s 0 0 552.61310 0 70 566.00000 552.61310 2.37% - 1s 0 0 552.61314 0 77 566.00000 552.61314 2.37% - 1s 0 0 552.62029 0 72 566.00000 552.62029 2.36% - 1s 0 0 552.62029 0 76 566.00000 552.62029 2.36% - 1s 0 0 552.62029 0 76 566.00000 552.62029 2.36% - 1s 0 2 552.68440 0 76 566.00000 552.68440 2.35% - 2s 610 322 556.47059 13 66 566.00000 556.47059 1.68% 12.6 5s 3145 703 564.10714 26 53 566.00000 559.60000 1.13% 12.4 10s 6371 525 563.09483 30 57 566.00000 562.44224 0.63% 11.7 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 7566 nodes (85081 simplex iterations) in 16.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (6, 50), (10, 50), (10, 51), (21, 36), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (11, 40), (11, 31), (12, 39), (16, 38), (16, 46), (17, 35), (17, 39), (18, 38), (31, 35)] Optimize a model with 666 rows, 1275 columns and 120822 nonzeros Presolve time: 0.07s Presolved: 666 rows, 1275 columns, 120822 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.00462 0 68 569.00000 552.00462 2.99% - 0s 0 0 552.16780 0 67 569.00000 552.16780 2.96% - 0s 0 0 552.18686 0 68 569.00000 552.18686 2.95% - 0s 0 0 552.22584 0 71 569.00000 552.22584 2.95% - 0s 0 0 552.26006 0 76 569.00000 552.26006 2.94% - 0s 0 0 552.32237 0 75 569.00000 552.32237 2.93% - 0s 0 0 552.38309 0 70 569.00000 552.38309 2.92% - 0s 0 0 552.38435 0 73 569.00000 552.38435 2.92% - 0s 0 0 552.41188 0 74 569.00000 552.41188 2.92% - 0s 0 0 552.41202 0 78 569.00000 552.41202 2.92% - 0s 0 0 552.41722 0 82 569.00000 552.41722 2.91% - 0s 0 0 552.45244 0 77 569.00000 552.45244 2.91% - 0s 0 0 552.45529 0 80 569.00000 552.45529 2.91% - 1s 0 0 552.47761 0 74 569.00000 552.47761 2.90% - 1s 0 0 552.47761 0 78 569.00000 552.47761 2.90% - 1s 0 0 552.49212 0 78 569.00000 552.49212 2.90% - 1s 0 0 552.49353 0 74 569.00000 552.49353 2.90% - 1s 0 0 552.49476 0 76 569.00000 552.49476 2.90% - 1s 0 0 552.51235 0 76 569.00000 552.51235 2.90% - 1s 0 0 552.54082 0 76 569.00000 552.54082 2.89% - 1s 0 0 552.54222 0 77 569.00000 552.54222 2.89% - 1s 0 0 552.55789 0 81 569.00000 552.55789 2.89% - 1s 0 0 552.56289 0 79 569.00000 552.56289 2.89% - 1s 0 0 552.56398 0 77 569.00000 552.56398 2.89% - 1s 0 0 552.56398 0 81 569.00000 552.56398 2.89% - 1s 0 0 552.57947 0 76 569.00000 552.57947 2.89% - 1s 0 0 552.58080 0 82 569.00000 552.58080 2.89% - 1s 0 0 552.60325 0 81 569.00000 552.60325 2.88% - 1s 0 0 552.71507 0 75 569.00000 552.71507 2.86% - 1s 0 0 552.73405 0 79 569.00000 552.73405 2.86% - 1s 0 0 552.90268 0 75 569.00000 552.90268 2.83% - 1s 0 0 552.91270 0 76 569.00000 552.91270 2.83% - 1s 0 0 552.91325 0 79 569.00000 552.91325 2.83% - 1s 0 0 552.92198 0 77 569.00000 552.92198 2.83% - 1s 0 0 552.92328 0 82 569.00000 552.92328 2.83% - 1s 0 0 552.92891 0 81 569.00000 552.92891 2.82% - 1s H 0 0 568.0000000 552.92891 2.65% - 2s 0 2 552.93373 0 81 568.00000 552.93373 2.65% - 2s H 27 25 566.0000000 553.98885 2.12% 14.8 3s 601 303 558.43636 7 62 566.00000 556.45455 1.69% 13.0 5s 2282 483 564.50000 30 28 566.00000 559.03226 1.23% 12.9 10s 5377 370 cutoff 31 566.00000 562.50000 0.62% 12.1 15s Cutting planes: Gomory: 7 MIR: 2 Zero half: 13 Explored 6364 nodes (73008 simplex iterations) in 16.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 19), (10, 31), (10, 50), (11, 40), (11, 50), (16, 38), (16, 46), (18, 38), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 667 rows, 1275 columns and 121098 nonzeros Presolve time: 0.07s Presolved: 667 rows, 1275 columns, 121098 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.00462 0 68 569.00000 552.00462 2.99% - 0s 0 0 552.16780 0 67 569.00000 552.16780 2.96% - 0s 0 0 552.18686 0 68 569.00000 552.18686 2.95% - 0s 0 0 552.22584 0 71 569.00000 552.22584 2.95% - 0s 0 0 552.26006 0 76 569.00000 552.26006 2.94% - 0s 0 0 552.32237 0 75 569.00000 552.32237 2.93% - 0s 0 0 552.38309 0 70 569.00000 552.38309 2.92% - 0s 0 0 552.38435 0 73 569.00000 552.38435 2.92% - 0s 0 0 552.41188 0 74 569.00000 552.41188 2.92% - 0s 0 0 552.41202 0 78 569.00000 552.41202 2.92% - 0s 0 0 552.41722 0 82 569.00000 552.41722 2.91% - 0s 0 0 552.45244 0 77 569.00000 552.45244 2.91% - 0s 0 0 552.45529 0 80 569.00000 552.45529 2.91% - 1s 0 0 552.47761 0 74 569.00000 552.47761 2.90% - 1s 0 0 552.47761 0 78 569.00000 552.47761 2.90% - 1s 0 0 552.49212 0 78 569.00000 552.49212 2.90% - 1s 0 0 552.49353 0 74 569.00000 552.49353 2.90% - 1s 0 0 552.49476 0 76 569.00000 552.49476 2.90% - 1s 0 0 552.51235 0 76 569.00000 552.51235 2.90% - 1s 0 0 552.54082 0 76 569.00000 552.54082 2.89% - 1s 0 0 552.54222 0 77 569.00000 552.54222 2.89% - 1s 0 0 552.55789 0 81 569.00000 552.55789 2.89% - 1s 0 0 552.56289 0 79 569.00000 552.56289 2.89% - 1s 0 0 552.56461 0 75 569.00000 552.56461 2.89% - 1s 0 0 552.56488 0 80 569.00000 552.56488 2.89% - 1s 0 0 552.58425 0 85 569.00000 552.58425 2.89% - 1s 0 0 552.58450 0 87 569.00000 552.58450 2.88% - 1s 0 0 552.58989 0 80 569.00000 552.58989 2.88% - 1s 0 0 552.60377 0 80 569.00000 552.60377 2.88% - 1s 0 0 552.70114 0 80 569.00000 552.70114 2.86% - 1s 0 0 552.71627 0 80 569.00000 552.71627 2.86% - 1s 0 0 552.72637 0 76 569.00000 552.72637 2.86% - 1s 0 0 552.73386 0 73 569.00000 552.73386 2.86% - 1s 0 0 552.73544 0 77 569.00000 552.73544 2.86% - 2s 0 0 552.73562 0 78 569.00000 552.73562 2.86% - 2s 0 0 552.73562 0 81 569.00000 552.73562 2.86% - 2s 0 0 552.73562 0 81 569.00000 552.73562 2.86% - 2s H 0 0 568.0000000 552.73562 2.69% - 3s 0 2 552.74625 0 81 568.00000 552.74625 2.69% - 3s * 214 147 29 567.0000000 554.80000 2.15% 13.4 3s * 494 259 21 566.0000000 556.37500 1.70% 13.0 4s 601 311 560.37500 18 62 566.00000 556.62626 1.66% 12.8 5s 2590 607 564.66667 29 34 566.00000 559.00000 1.24% 13.1 10s 5511 539 cutoff 26 566.00000 561.79245 0.74% 12.8 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 7103 nodes (86592 simplex iterations) in 17.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 50), (7, 15), (41, 42), (10, 50), (10, 51), (11, 40), (11, 31), (45, 46), (15, 26), (43, 45), (20, 41), (20, 43), (14, 26), (14, 42), (31, 35)] Optimize a model with 668 rows, 1275 columns and 121269 nonzeros Presolve time: 0.07s Presolved: 668 rows, 1275 columns, 121269 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 552.01230 0 67 571.00000 552.01230 3.33% - 0s 0 0 552.14668 0 70 571.00000 552.14668 3.30% - 0s 0 0 552.25017 0 74 571.00000 552.25017 3.28% - 0s 0 0 552.42781 0 66 571.00000 552.42781 3.25% - 0s 0 0 552.42781 0 70 571.00000 552.42781 3.25% - 0s 0 0 552.46403 0 70 571.00000 552.46403 3.25% - 0s 0 0 552.46403 0 74 571.00000 552.46403 3.25% - 0s 0 0 552.48435 0 73 571.00000 552.48435 3.24% - 0s 0 0 552.48435 0 76 571.00000 552.48435 3.24% - 0s 0 0 552.49196 0 73 571.00000 552.49196 3.24% - 1s 0 0 552.49542 0 78 571.00000 552.49542 3.24% - 1s 0 0 552.51811 0 75 571.00000 552.51811 3.24% - 1s 0 0 552.51811 0 78 571.00000 552.51811 3.24% - 1s 0 0 552.52552 0 73 571.00000 552.52552 3.24% - 1s 0 0 552.52552 0 77 571.00000 552.52552 3.24% - 1s 0 0 552.57597 0 77 571.00000 552.57597 3.23% - 1s 0 0 552.57597 0 80 571.00000 552.57597 3.23% - 1s 0 0 552.58357 0 79 571.00000 552.58357 3.23% - 1s 0 0 552.58357 0 82 571.00000 552.58357 3.23% - 1s 0 0 552.59121 0 82 571.00000 552.59121 3.22% - 1s 0 0 552.59255 0 83 571.00000 552.59255 3.22% - 1s 0 0 552.59385 0 85 571.00000 552.59385 3.22% - 1s 0 0 552.62808 0 75 571.00000 552.62808 3.22% - 1s 0 0 552.62885 0 84 571.00000 552.62885 3.22% - 1s 0 0 552.77232 0 73 571.00000 552.77232 3.19% - 1s 0 0 552.78012 0 78 571.00000 552.78012 3.19% - 1s 0 0 552.79105 0 78 571.00000 552.79105 3.19% - 1s 0 0 552.91029 0 74 571.00000 552.91029 3.17% - 1s 0 0 552.92885 0 72 571.00000 552.92885 3.16% - 1s 0 0 552.93319 0 74 571.00000 552.93319 3.16% - 2s 0 2 552.95974 0 74 571.00000 552.95974 3.16% - 2s H 27 24 567.0000000 553.59677 2.36% 17.4 3s * 160 103 35 566.0000000 554.36957 2.05% 13.5 3s 605 336 561.80000 18 77 566.00000 556.21739 1.73% 12.8 5s 2337 643 562.34470 19 60 566.00000 558.84615 1.26% 12.5 10s 5478 921 564.98601 24 51 566.00000 561.33333 0.82% 11.6 15s Cutting planes: Gomory: 6 MIR: 2 Zero half: 11 Explored 8905 nodes (95303 simplex iterations) in 19.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 19), (5, 38), (10, 31), (10, 50), (11, 40), (11, 50), (16, 38), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (23, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 669 rows, 1275 columns and 121500 nonzeros Presolve time: 0.07s Presolved: 669 rows, 1275 columns, 121500 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 551.96548 0 67 570.00000 551.96548 3.16% - 0s 0 0 552.03696 0 69 570.00000 552.03696 3.15% - 0s 0 0 552.22090 0 70 570.00000 552.22090 3.12% - 0s 0 0 552.25087 0 72 570.00000 552.25087 3.11% - 0s 0 0 552.27023 0 69 570.00000 552.27023 3.11% - 0s 0 0 552.28321 0 76 570.00000 552.28321 3.11% - 0s 0 0 552.29847 0 72 570.00000 552.29847 3.11% - 0s 0 0 552.40368 0 69 570.00000 552.40368 3.09% - 0s 0 0 552.40903 0 69 570.00000 552.40903 3.09% - 0s 0 0 552.43456 0 76 570.00000 552.43456 3.08% - 0s 0 0 552.43456 0 79 570.00000 552.43456 3.08% - 0s 0 0 552.48219 0 65 570.00000 552.48219 3.07% - 0s 0 0 552.48219 0 69 570.00000 552.48219 3.07% - 1s 0 0 552.53113 0 72 570.00000 552.53113 3.06% - 1s 0 0 552.53113 0 77 570.00000 552.53113 3.06% - 1s 0 0 552.54704 0 74 570.00000 552.54704 3.06% - 1s 0 0 552.54735 0 78 570.00000 552.54735 3.06% - 1s 0 0 552.58824 0 72 570.00000 552.58824 3.05% - 1s 0 0 552.58824 0 73 570.00000 552.58824 3.05% - 1s 0 0 552.59271 0 78 570.00000 552.59271 3.05% - 1s H 0 0 567.0000000 552.59271 2.54% - 1s 0 0 552.63910 0 79 567.00000 552.63910 2.53% - 1s 0 2 553.12507 0 79 567.00000 553.12507 2.45% - 1s * 83 39 49 566.0000000 553.61593 2.19% 16.4 4s 283 148 561.50000 31 35 566.00000 555.92647 1.78% 15.9 5s 3110 526 564.26667 29 44 566.00000 561.00000 0.88% 11.9 10s Cutting planes: Gomory: 11 MIR: 1 Zero half: 19 Explored 5343 nodes (58339 simplex iterations) in 13.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 22), (21, 36), (21, 30), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(35, 51), (34, 40), (34, 46), (3, 12), (3, 17), (6, 38), (11, 40), (11, 50), (16, 38), (16, 46), (17, 51), (31, 35), (31, 50)] Optimize a model with 671 rows, 1275 columns and 121682 nonzeros Presolve time: 0.07s Presolved: 671 rows, 1275 columns, 121682 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 566.0000000 550.84524 2.68% - 0s 0 0 551.50986 0 62 566.00000 551.50986 2.56% - 0s 0 0 551.50986 0 56 566.00000 551.50986 2.56% - 0s 0 0 551.50986 0 63 566.00000 551.50986 2.56% - 0s 0 0 551.91409 0 69 566.00000 551.91409 2.49% - 0s 0 0 551.94310 0 69 566.00000 551.94310 2.48% - 0s 0 0 552.00232 0 68 566.00000 552.00232 2.47% - 0s 0 0 552.03247 0 68 566.00000 552.03247 2.47% - 0s 0 0 552.03693 0 69 566.00000 552.03693 2.47% - 0s 0 0 552.06004 0 72 566.00000 552.06004 2.46% - 0s 0 0 552.07003 0 67 566.00000 552.07003 2.46% - 0s 0 0 552.26402 0 70 566.00000 552.26402 2.43% - 0s 0 0 552.27561 0 72 566.00000 552.27561 2.42% - 0s 0 0 552.38252 0 74 566.00000 552.38252 2.41% - 0s 0 0 552.39489 0 73 566.00000 552.39489 2.40% - 0s 0 0 552.41867 0 74 566.00000 552.41867 2.40% - 0s 0 0 552.42542 0 75 566.00000 552.42542 2.40% - 0s 0 0 552.50444 0 73 566.00000 552.50444 2.38% - 0s 0 0 552.51039 0 76 566.00000 552.51039 2.38% - 0s 0 0 552.53226 0 75 566.00000 552.53226 2.38% - 0s 0 0 552.53446 0 77 566.00000 552.53446 2.38% - 0s 0 0 552.55027 0 74 566.00000 552.55027 2.38% - 0s 0 0 552.55027 0 77 566.00000 552.55027 2.38% - 1s 0 0 552.58759 0 79 566.00000 552.58759 2.37% - 1s 0 0 552.59160 0 83 566.00000 552.59160 2.37% - 1s 0 0 552.61805 0 75 566.00000 552.61805 2.36% - 1s 0 0 552.62503 0 77 566.00000 552.62503 2.36% - 1s 0 0 552.63135 0 81 566.00000 552.63135 2.36% - 1s 0 0 552.63549 0 80 566.00000 552.63549 2.36% - 1s 0 0 552.65060 0 77 566.00000 552.65060 2.36% - 1s 0 0 552.66038 0 81 566.00000 552.66038 2.36% - 1s 0 0 552.66465 0 82 566.00000 552.66465 2.36% - 1s 0 0 552.68082 0 75 566.00000 552.68082 2.35% - 1s 0 0 552.68777 0 85 566.00000 552.68777 2.35% - 1s 0 0 552.68874 0 84 566.00000 552.68874 2.35% - 1s 0 0 552.69647 0 84 566.00000 552.69647 2.35% - 1s 0 0 552.71220 0 84 566.00000 552.71220 2.35% - 1s 0 0 552.71385 0 86 566.00000 552.71385 2.35% - 1s 0 0 552.73316 0 85 566.00000 552.73316 2.34% - 1s 0 0 552.74742 0 86 566.00000 552.74742 2.34% - 1s 0 0 552.76547 0 86 566.00000 552.76547 2.34% - 1s 0 0 552.80428 0 89 566.00000 552.80428 2.33% - 1s 0 0 552.80575 0 87 566.00000 552.80575 2.33% - 1s 0 0 552.80900 0 91 566.00000 552.80900 2.33% - 1s 0 2 552.82149 0 91 566.00000 552.82149 2.33% - 2s 608 288 558.46364 15 90 566.00000 556.80838 1.62% 12.8 5s 3054 555 561.40870 23 64 566.00000 560.34109 1.00% 12.6 10s Cutting planes: Gomory: 1 Zero half: 20 Explored 5745 nodes (66469 simplex iterations) in 14.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 33), (4, 29), (4, 37), (6, 38), (6, 50), (9, 23), (9, 27), (10, 22), (10, 50), (11, 31), (11, 40), (16, 38), (16, 46), (17, 51), (21, 30), (21, 36), (22, 30), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 672 rows, 1275 columns and 122033 nonzeros Presolve time: 0.07s Presolved: 672 rows, 1275 columns, 122033 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.48148 0 67 568.00000 552.48148 2.73% - 0s 0 0 552.48148 0 71 568.00000 552.48148 2.73% - 0s 0 0 552.48663 0 76 568.00000 552.48663 2.73% - 0s 0 0 552.49099 0 73 568.00000 552.49099 2.73% - 0s 0 0 552.49124 0 75 568.00000 552.49124 2.73% - 0s 0 0 552.49671 0 78 568.00000 552.49671 2.73% - 0s 0 0 552.50911 0 78 568.00000 552.50911 2.73% - 0s 0 0 552.57374 0 83 568.00000 552.57374 2.72% - 1s 0 0 552.60818 0 83 568.00000 552.60818 2.71% - 1s 0 0 552.61638 0 78 568.00000 552.61638 2.71% - 1s 0 0 552.62889 0 84 568.00000 552.62889 2.71% - 1s 0 0 552.63337 0 85 568.00000 552.63337 2.71% - 1s 0 0 552.65301 0 79 568.00000 552.65301 2.70% - 1s 0 0 552.66952 0 83 568.00000 552.66952 2.70% - 1s 0 0 552.67914 0 81 568.00000 552.67914 2.70% - 1s 0 0 552.73334 0 84 568.00000 552.73334 2.69% - 1s 0 0 552.73733 0 85 568.00000 552.73733 2.69% - 1s 0 0 552.74657 0 87 568.00000 552.74657 2.69% - 1s 0 0 552.74657 0 86 568.00000 552.74657 2.69% - 1s H 0 0 567.0000000 552.74657 2.51% - 1s 0 2 552.74885 0 86 567.00000 552.74885 2.51% - 2s * 339 199 23 566.0000000 555.88889 1.79% 12.9 3s 613 311 556.69036 11 65 566.00000 556.69036 1.64% 13.6 5s 3230 482 565.00000 23 31 566.00000 561.20000 0.85% 12.5 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Mod-K: 1 Explored 5350 nodes (61172 simplex iterations) in 12.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (41, 42), (11, 40), (11, 31), (15, 26), (16, 45), (16, 46), (43, 45), (3, 12), (3, 30), (20, 41), (20, 43), (14, 42), (14, 26), (22, 35), (22, 30), (31, 35)] Optimize a model with 673 rows, 1275 columns and 122204 nonzeros Presolve time: 0.07s Presolved: 673 rows, 1275 columns, 122204 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.24032 0 73 1672.00000 552.24032 67.0% - 0s 0 0 552.30948 0 76 1672.00000 552.30948 67.0% - 0s 0 0 552.31834 0 77 1672.00000 552.31834 67.0% - 0s 0 0 552.33995 0 75 1672.00000 552.33995 67.0% - 0s 0 0 552.38909 0 81 1672.00000 552.38909 67.0% - 0s 0 0 552.39896 0 79 1672.00000 552.39896 67.0% - 1s H 0 0 691.0000000 552.39896 20.1% - 1s H 0 0 600.0000000 552.39896 7.93% - 1s H 0 0 575.0000000 552.39896 3.93% - 1s 0 0 552.40610 0 80 575.00000 552.40610 3.93% - 1s 0 0 552.40610 0 56 575.00000 552.40610 3.93% - 1s 0 0 552.40610 0 68 575.00000 552.40610 3.93% - 1s 0 0 552.40610 0 75 575.00000 552.40610 3.93% - 1s 0 0 552.40610 0 78 575.00000 552.40610 3.93% - 1s 0 0 552.47340 0 69 575.00000 552.47340 3.92% - 1s 0 0 552.47340 0 72 575.00000 552.47340 3.92% - 1s 0 0 552.52309 0 73 575.00000 552.52309 3.91% - 1s 0 0 552.52309 0 76 575.00000 552.52309 3.91% - 1s 0 0 552.56813 0 73 575.00000 552.56813 3.90% - 1s 0 0 552.56813 0 77 575.00000 552.56813 3.90% - 1s 0 0 552.66819 0 75 575.00000 552.66819 3.88% - 2s 0 0 552.67080 0 79 575.00000 552.67080 3.88% - 2s 0 0 552.67669 0 75 575.00000 552.67669 3.88% - 2s 0 0 552.68740 0 81 575.00000 552.68740 3.88% - 2s 0 0 552.69875 0 75 575.00000 552.69875 3.88% - 2s 0 0 552.69875 0 75 575.00000 552.69875 3.88% - 2s 0 0 552.69875 0 75 575.00000 552.69875 3.88% - 2s H 0 0 573.0000000 552.69875 3.54% - 3s 0 2 552.72324 0 75 573.00000 552.72324 3.54% - 3s * 203 148 52 572.0000000 554.53012 3.05% 10.0 4s * 338 197 18 568.0000000 554.86667 2.31% 11.3 4s 601 321 563.69444 14 80 568.00000 556.42857 2.04% 11.4 5s * 662 322 44 567.0000000 556.42857 1.86% 12.3 6s * 752 303 32 566.0000000 556.42857 1.69% 12.5 7s 2594 669 563.00000 24 33 566.00000 559.00000 1.24% 11.2 10s 5794 661 564.69231 25 45 566.00000 561.74830 0.75% 11.2 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 7824 nodes (84727 simplex iterations) in 18.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (6, 39), (6, 50), (9, 23), (9, 27), (10, 50), (10, 51), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (38, 45), (11, 40), (11, 31), (16, 45), (16, 46), (17, 35), (18, 38), (31, 35)] Optimize a model with 675 rows, 1275 columns and 122418 nonzeros Presolve time: 0.07s Presolved: 675 rows, 1275 columns, 122418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 551.96548 0 67 570.00000 551.96548 3.16% - 0s 0 0 552.03696 0 69 570.00000 552.03696 3.15% - 0s 0 0 552.22090 0 70 570.00000 552.22090 3.12% - 0s 0 0 552.25087 0 72 570.00000 552.25087 3.11% - 0s 0 0 552.27023 0 69 570.00000 552.27023 3.11% - 0s 0 0 552.28321 0 76 570.00000 552.28321 3.11% - 0s 0 0 552.29847 0 72 570.00000 552.29847 3.11% - 0s 0 0 552.40368 0 69 570.00000 552.40368 3.09% - 0s 0 0 552.40903 0 69 570.00000 552.40903 3.09% - 0s 0 0 552.43456 0 76 570.00000 552.43456 3.08% - 0s 0 0 552.43456 0 79 570.00000 552.43456 3.08% - 0s 0 0 552.48219 0 65 570.00000 552.48219 3.07% - 1s 0 0 552.48219 0 69 570.00000 552.48219 3.07% - 1s 0 0 552.53113 0 72 570.00000 552.53113 3.06% - 1s 0 0 552.53113 0 77 570.00000 552.53113 3.06% - 1s 0 0 552.54704 0 73 570.00000 552.54704 3.06% - 1s 0 0 552.54735 0 75 570.00000 552.54735 3.06% - 1s 0 0 552.54735 0 78 570.00000 552.54735 3.06% - 1s 0 0 552.58824 0 72 570.00000 552.58824 3.05% - 1s 0 0 552.58824 0 73 570.00000 552.58824 3.05% - 1s 0 0 552.59827 0 82 570.00000 552.59827 3.05% - 1s 0 0 552.61756 0 76 570.00000 552.61756 3.05% - 1s 0 0 552.63086 0 78 570.00000 552.63086 3.05% - 1s 0 0 552.63293 0 82 570.00000 552.63293 3.05% - 1s 0 0 552.65029 0 74 570.00000 552.65029 3.04% - 1s 0 0 552.65041 0 79 570.00000 552.65041 3.04% - 1s 0 0 552.65145 0 82 570.00000 552.65145 3.04% - 1s 0 0 552.65673 0 75 570.00000 552.65673 3.04% - 1s 0 0 552.65673 0 75 570.00000 552.65673 3.04% - 2s H 0 0 567.0000000 552.65673 2.53% - 2s 0 2 552.67288 0 75 567.00000 552.67288 2.53% - 2s * 149 92 31 566.0000000 554.72727 1.99% 12.6 3s 608 305 563.84211 15 75 566.00000 556.50000 1.68% 13.2 5s 3212 812 563.50000 17 56 566.00000 559.55556 1.14% 11.9 10s 6693 981 564.00000 26 22 566.00000 561.62500 0.77% 11.1 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 10089 nodes (104298 simplex iterations) in 19.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 31), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (3, 33), (3, 17), (6, 16), (11, 40), (11, 50), (16, 46), (17, 51), (50, 51)] Optimize a model with 677 rows, 1275 columns and 122609 nonzeros Presolve time: 0.07s Presolved: 677 rows, 1275 columns, 122609 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.48148 0 67 568.00000 552.48148 2.73% - 0s 0 0 552.48148 0 71 568.00000 552.48148 2.73% - 0s 0 0 552.48663 0 76 568.00000 552.48663 2.73% - 0s 0 0 552.49099 0 73 568.00000 552.49099 2.73% - 0s 0 0 552.49124 0 75 568.00000 552.49124 2.73% - 0s 0 0 552.49671 0 78 568.00000 552.49671 2.73% - 0s 0 0 552.50911 0 78 568.00000 552.50911 2.73% - 0s 0 0 552.57374 0 83 568.00000 552.57374 2.72% - 1s 0 0 552.60818 0 83 568.00000 552.60818 2.71% - 1s 0 0 552.61638 0 78 568.00000 552.61638 2.71% - 1s 0 0 552.62889 0 84 568.00000 552.62889 2.71% - 1s 0 0 552.63337 0 85 568.00000 552.63337 2.71% - 1s 0 0 552.65301 0 79 568.00000 552.65301 2.70% - 1s 0 0 552.66952 0 83 568.00000 552.66952 2.70% - 1s 0 0 552.67914 0 81 568.00000 552.67914 2.70% - 1s 0 0 552.73334 0 84 568.00000 552.73334 2.69% - 1s 0 0 552.73733 0 85 568.00000 552.73733 2.69% - 1s 0 0 552.74657 0 87 568.00000 552.74657 2.69% - 1s 0 2 552.75273 0 86 568.00000 552.75273 2.68% - 2s H 469 257 566.0000000 555.83333 1.80% 12.7 3s 611 313 562.00000 22 72 566.00000 556.30769 1.71% 12.5 5s 2601 471 562.86667 24 58 566.00000 560.55556 0.96% 12.6 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 7 Mod-K: 1 Explored 5146 nodes (57559 simplex iterations) in 13.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (34, 40), (34, 46), (3, 17), (3, 30), (6, 16), (6, 50), (10, 39), (10, 50), (11, 40), (11, 31), (12, 17), (16, 46), (22, 51), (22, 30), (31, 35)] Optimize a model with 678 rows, 1275 columns and 122745 nonzeros Presolve time: 0.07s Presolved: 678 rows, 1275 columns, 122745 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.92761 0 64 572.00000 551.92761 3.51% - 0s 0 0 552.18690 0 72 572.00000 552.18690 3.46% - 0s 0 0 552.34030 0 74 572.00000 552.34030 3.44% - 0s 0 0 552.36816 0 76 572.00000 552.36816 3.43% - 0s 0 0 552.37424 0 77 572.00000 552.37424 3.43% - 0s 0 0 552.38428 0 79 572.00000 552.38428 3.43% - 0s 0 0 552.39594 0 80 572.00000 552.39594 3.43% - 0s 0 0 552.40952 0 77 572.00000 552.40952 3.42% - 0s 0 0 552.47099 0 75 572.00000 552.47099 3.41% - 0s 0 0 552.47384 0 73 572.00000 552.47384 3.41% - 0s 0 0 552.54963 0 76 572.00000 552.54963 3.40% - 0s 0 0 552.57995 0 79 572.00000 552.57995 3.40% - 0s 0 0 552.58723 0 81 572.00000 552.58723 3.39% - 0s 0 0 552.61553 0 73 572.00000 552.61553 3.39% - 0s 0 0 552.61646 0 79 572.00000 552.61646 3.39% - 1s 0 0 552.63676 0 81 572.00000 552.63676 3.39% - 1s 0 0 552.68279 0 70 572.00000 552.68279 3.38% - 1s 0 0 552.68594 0 76 572.00000 552.68594 3.38% - 1s 0 0 552.69892 0 80 572.00000 552.69892 3.37% - 1s 0 0 552.72710 0 83 572.00000 552.72710 3.37% - 1s 0 0 552.73027 0 82 572.00000 552.73027 3.37% - 1s 0 0 552.74354 0 75 572.00000 552.74354 3.37% - 1s 0 0 552.74354 0 74 572.00000 552.74354 3.37% - 1s H 0 0 569.0000000 552.74354 2.86% - 2s 0 2 552.74852 0 74 569.00000 552.74852 2.86% - 2s * 88 57 32 568.0000000 554.73243 2.34% 12.6 2s * 538 299 34 567.0000000 556.27214 1.89% 13.1 3s 709 363 559.12102 10 70 567.00000 556.95000 1.77% 13.3 5s * 1175 398 34 566.0000000 556.95000 1.60% 13.5 6s 3183 616 cutoff 24 566.00000 560.52008 0.97% 12.1 10s Cutting planes: Gomory: 1 MIR: 3 Zero half: 9 Explored 6430 nodes (69989 simplex iterations) in 14.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (10, 51), (10, 50), (11, 40), (11, 50), (17, 51), (17, 39), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 40), (31, 35)] adding cut for [(34, 46), (6, 34), (41, 43), (43, 45), (15, 26), (16, 45), (16, 46), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 680 rows, 1275 columns and 123021 nonzeros Presolve time: 0.07s Presolved: 680 rows, 1275 columns, 123021 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 581.0000000 550.84524 5.19% - 0s 0 0 551.50986 0 62 581.00000 551.50986 5.08% - 0s 0 0 551.50986 0 56 581.00000 551.50986 5.08% - 0s 0 0 551.80458 0 63 581.00000 551.80458 5.03% - 0s 0 0 551.97037 0 66 581.00000 551.97037 5.00% - 0s 0 0 552.14105 0 67 581.00000 552.14105 4.97% - 0s 0 0 552.23395 0 73 581.00000 552.23395 4.95% - 0s 0 0 552.25346 0 72 581.00000 552.25346 4.95% - 0s 0 0 552.32382 0 71 581.00000 552.32382 4.94% - 0s 0 0 552.34187 0 71 581.00000 552.34187 4.93% - 0s 0 0 552.37060 0 74 581.00000 552.37060 4.93% - 0s 0 0 552.39307 0 77 581.00000 552.39307 4.92% - 0s 0 0 552.44679 0 66 581.00000 552.44679 4.91% - 1s 0 0 552.44679 0 70 581.00000 552.44679 4.91% - 1s 0 0 552.52356 0 73 581.00000 552.52356 4.90% - 1s 0 0 552.52356 0 76 581.00000 552.52356 4.90% - 1s 0 0 552.54491 0 70 581.00000 552.54491 4.90% - 1s 0 0 552.54491 0 73 581.00000 552.54491 4.90% - 1s 0 0 552.56941 0 73 581.00000 552.56941 4.89% - 1s 0 0 552.56941 0 77 581.00000 552.56941 4.89% - 1s 0 0 552.58382 0 76 581.00000 552.58382 4.89% - 1s 0 0 552.58382 0 79 581.00000 552.58382 4.89% - 1s 0 0 552.59041 0 81 581.00000 552.59041 4.89% - 1s 0 0 552.61523 0 81 581.00000 552.61523 4.89% - 1s 0 0 552.63892 0 76 581.00000 552.63892 4.88% - 1s 0 0 552.64093 0 77 581.00000 552.64093 4.88% - 1s 0 0 552.65050 0 81 581.00000 552.65050 4.88% - 1s 0 0 552.66376 0 78 581.00000 552.66376 4.88% - 2s 0 0 552.71984 0 73 581.00000 552.71984 4.87% - 2s 0 0 552.73064 0 81 581.00000 552.73064 4.87% - 2s 0 0 552.74328 0 86 581.00000 552.74328 4.86% - 2s 0 0 552.75493 0 84 581.00000 552.75493 4.86% - 2s 0 0 552.76617 0 83 581.00000 552.76617 4.86% - 2s 0 0 552.76743 0 86 581.00000 552.76743 4.86% - 2s 0 0 552.77220 0 85 581.00000 552.77220 4.86% - 2s 0 0 552.77951 0 80 581.00000 552.77951 4.86% - 2s 0 0 552.77951 0 83 581.00000 552.77951 4.86% - 2s 0 0 552.77951 0 83 581.00000 552.77951 4.86% - 3s H 0 0 576.0000000 552.77951 4.03% - 3s H 0 0 572.0000000 552.77951 3.36% - 3s H 0 0 568.0000000 552.77951 2.68% - 3s 0 2 552.78138 0 83 568.00000 552.78138 2.68% - 3s H 42 30 566.0000000 554.00709 2.12% 12.3 3s 592 297 559.66667 6 44 566.00000 556.38462 1.70% 12.8 5s 1573 359 561.43750 24 47 566.00000 557.89474 1.43% 13.0 10s 4432 666 564.71875 29 49 566.00000 561.26761 0.84% 12.0 15s Cutting planes: Gomory: 12 MIR: 3 Zero half: 7 Explored 7050 nodes (78611 simplex iterations) in 18.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (10, 17), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (39, 50), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (6, 39), (31, 50)] Optimize a model with 682 rows, 1275 columns and 123219 nonzeros Presolve time: 0.07s Presolved: 682 rows, 1275 columns, 123219 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.80458 0 63 567.00000 551.80458 2.68% - 0s 0 0 551.83569 0 70 567.00000 551.83569 2.67% - 0s 0 0 551.95750 0 74 567.00000 551.95750 2.65% - 0s 0 0 552.07349 0 71 567.00000 552.07349 2.63% - 0s 0 0 552.16570 0 74 567.00000 552.16570 2.62% - 0s 0 0 552.18497 0 73 567.00000 552.18497 2.61% - 0s 0 0 552.19293 0 75 567.00000 552.19293 2.61% - 0s 0 0 552.20689 0 77 567.00000 552.20689 2.61% - 0s 0 0 552.22035 0 76 567.00000 552.22035 2.61% - 0s 0 0 552.23397 0 82 567.00000 552.23397 2.60% - 0s 0 0 552.26896 0 71 567.00000 552.26896 2.60% - 0s 0 0 552.37902 0 75 567.00000 552.37902 2.58% - 0s 0 0 552.40412 0 78 567.00000 552.40412 2.57% - 0s 0 0 552.42049 0 79 567.00000 552.42049 2.57% - 0s 0 0 552.43053 0 85 567.00000 552.43053 2.57% - 0s 0 0 552.45391 0 77 567.00000 552.45391 2.57% - 0s 0 0 552.46701 0 78 567.00000 552.46701 2.56% - 0s 0 0 552.57198 0 81 567.00000 552.57198 2.54% - 1s 0 0 552.59122 0 86 567.00000 552.59122 2.54% - 1s 0 0 552.59142 0 84 567.00000 552.59142 2.54% - 1s 0 0 552.60715 0 85 567.00000 552.60715 2.54% - 1s 0 0 552.70297 0 80 567.00000 552.70297 2.52% - 1s 0 0 552.70599 0 86 567.00000 552.70599 2.52% - 1s 0 0 552.72615 0 85 567.00000 552.72615 2.52% - 1s 0 0 552.73733 0 83 567.00000 552.73733 2.52% - 1s 0 0 552.74447 0 87 567.00000 552.74447 2.51% - 1s 0 0 552.74507 0 86 567.00000 552.74507 2.51% - 1s 0 0 552.74750 0 85 567.00000 552.74750 2.51% - 1s 0 0 552.75628 0 82 567.00000 552.75628 2.51% - 1s 0 0 552.80741 0 81 567.00000 552.80741 2.50% - 1s 0 0 552.80807 0 84 567.00000 552.80807 2.50% - 1s 0 0 552.82101 0 75 567.00000 552.82101 2.50% - 1s 0 0 552.82520 0 87 567.00000 552.82520 2.50% - 1s 0 0 552.86290 0 76 567.00000 552.86290 2.49% - 1s 0 0 552.87113 0 78 567.00000 552.87113 2.49% - 1s 0 0 552.87114 0 80 567.00000 552.87114 2.49% - 1s 0 2 552.87175 0 79 567.00000 552.87175 2.49% - 2s 607 317 558.64815 11 74 567.00000 556.61789 1.83% 13.3 5s * 880 357 39 566.0000000 556.61789 1.66% 13.8 7s 1973 517 cutoff 29 566.00000 558.35714 1.35% 13.0 10s 4948 849 cutoff 28 566.00000 561.00000 0.88% 12.0 15s 8094 335 564.00000 26 31 566.00000 563.30000 0.48% 11.2 20s Cutting planes: Gomory: 11 MIR: 1 Zero half: 9 Explored 8747 nodes (95963 simplex iterations) in 20.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (36, 37), (6, 50), (7, 24), (8, 44), (8, 27), (10, 50), (10, 22), (21, 36), (22, 30), (25, 44), (24, 25), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (35, 51), (5, 18), (5, 19), (11, 40), (11, 31), (12, 39), (16, 46), (16, 18), (17, 51), (17, 39), (31, 35)] Optimize a model with 684 rows, 1275 columns and 123463 nonzeros Presolve time: 0.07s Presolved: 684 rows, 1275 columns, 123463 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.00462 0 68 569.00000 552.00462 2.99% - 0s 0 0 552.16780 0 67 569.00000 552.16780 2.96% - 0s 0 0 552.18686 0 68 569.00000 552.18686 2.95% - 0s 0 0 552.22584 0 71 569.00000 552.22584 2.95% - 0s 0 0 552.26006 0 76 569.00000 552.26006 2.94% - 0s 0 0 552.32237 0 75 569.00000 552.32237 2.93% - 0s 0 0 552.38309 0 70 569.00000 552.38309 2.92% - 0s 0 0 552.38435 0 73 569.00000 552.38435 2.92% - 0s 0 0 552.41188 0 74 569.00000 552.41188 2.92% - 0s 0 0 552.41202 0 78 569.00000 552.41202 2.92% - 0s 0 0 552.41722 0 82 569.00000 552.41722 2.91% - 0s 0 0 552.45244 0 77 569.00000 552.45244 2.91% - 0s 0 0 552.45529 0 80 569.00000 552.45529 2.91% - 1s 0 0 552.47761 0 74 569.00000 552.47761 2.90% - 1s 0 0 552.47761 0 78 569.00000 552.47761 2.90% - 1s 0 0 552.49212 0 78 569.00000 552.49212 2.90% - 1s 0 0 552.49353 0 74 569.00000 552.49353 2.90% - 1s 0 0 552.49476 0 76 569.00000 552.49476 2.90% - 1s 0 0 552.51235 0 76 569.00000 552.51235 2.90% - 1s 0 0 552.54082 0 76 569.00000 552.54082 2.89% - 1s 0 0 552.54222 0 77 569.00000 552.54222 2.89% - 1s 0 0 552.55789 0 81 569.00000 552.55789 2.89% - 1s 0 0 552.56289 0 79 569.00000 552.56289 2.89% - 1s 0 0 552.56398 0 77 569.00000 552.56398 2.89% - 1s 0 0 552.56398 0 81 569.00000 552.56398 2.89% - 1s 0 0 552.57947 0 76 569.00000 552.57947 2.89% - 1s 0 0 552.58080 0 82 569.00000 552.58080 2.89% - 1s 0 0 552.60325 0 81 569.00000 552.60325 2.88% - 1s 0 0 552.71507 0 75 569.00000 552.71507 2.86% - 1s 0 0 552.73405 0 79 569.00000 552.73405 2.86% - 1s 0 0 552.90268 0 75 569.00000 552.90268 2.83% - 1s 0 0 552.91270 0 76 569.00000 552.91270 2.83% - 1s 0 0 552.91325 0 79 569.00000 552.91325 2.83% - 1s 0 0 552.92198 0 77 569.00000 552.92198 2.83% - 1s 0 0 552.92328 0 82 569.00000 552.92328 2.83% - 1s 0 0 552.92891 0 81 569.00000 552.92891 2.82% - 1s H 0 0 567.0000000 552.92891 2.48% - 2s 0 2 552.93373 0 81 567.00000 552.93373 2.48% - 2s * 278 147 30 566.0000000 555.34118 1.88% 13.6 3s 601 304 561.00000 11 62 566.00000 556.66821 1.65% 12.8 5s 2194 521 563.25000 21 27 566.00000 559.50000 1.15% 13.3 10s 5437 585 562.65000 30 42 566.00000 562.37209 0.64% 11.9 15s Cutting planes: Gomory: 4 MIR: 2 Zero half: 14 Explored 7003 nodes (78565 simplex iterations) in 17.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (10, 39), (10, 31), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (6, 16), (11, 40), (11, 50), (16, 46), (17, 51), (50, 51)] Optimize a model with 686 rows, 1275 columns and 123638 nonzeros Presolve time: 0.07s Presolved: 686 rows, 1275 columns, 123638 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.48148 0 66 568.00000 552.48148 2.73% - 0s 0 0 552.48148 0 70 568.00000 552.48148 2.73% - 0s 0 0 552.48666 0 71 568.00000 552.48666 2.73% - 0s 0 0 552.48666 0 75 568.00000 552.48666 2.73% - 0s 0 0 552.49089 0 71 568.00000 552.49089 2.73% - 0s 0 0 552.49249 0 76 568.00000 552.49249 2.73% - 0s 0 0 552.50294 0 78 568.00000 552.50294 2.73% - 1s 0 0 552.51663 0 79 568.00000 552.51663 2.73% - 1s 0 0 552.53209 0 80 568.00000 552.53209 2.72% - 1s 0 0 552.60304 0 73 568.00000 552.60304 2.71% - 1s 0 0 552.62811 0 78 568.00000 552.62811 2.71% - 1s 0 0 552.65836 0 82 568.00000 552.65836 2.70% - 1s 0 0 552.68310 0 81 568.00000 552.68310 2.70% - 1s 0 0 552.82855 0 73 568.00000 552.82855 2.67% - 1s 0 0 552.86989 0 74 568.00000 552.86989 2.66% - 1s 0 0 552.89179 0 71 568.00000 552.89179 2.66% - 1s 0 0 552.90302 0 74 568.00000 552.90302 2.66% - 1s 0 0 552.90558 0 75 568.00000 552.90558 2.66% - 1s 0 0 552.90634 0 79 568.00000 552.90634 2.66% - 1s 0 0 552.91266 0 80 568.00000 552.91266 2.66% - 1s 0 0 552.91946 0 81 568.00000 552.91946 2.66% - 1s 0 0 552.91946 0 81 568.00000 552.91946 2.66% - 1s 0 0 552.91946 0 81 568.00000 552.91946 2.66% - 1s 0 2 552.92085 0 81 568.00000 552.92085 2.65% - 2s H 27 23 567.0000000 553.60976 2.36% 14.0 2s H 528 298 566.0000000 556.08333 1.75% 12.0 3s 708 395 561.13806 6 76 566.00000 556.40426 1.70% 11.9 5s 2627 625 cutoff 26 566.00000 559.01339 1.23% 12.2 10s 5918 591 cutoff 28 566.00000 562.16667 0.68% 11.4 15s Cutting planes: Gomory: 8 MIR: 2 Zero half: 12 Explored 7547 nodes (82078 simplex iterations) in 17.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (6, 16), (9, 27), (9, 49), (10, 31), (10, 50), (11, 40), (11, 50), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 687 rows, 1275 columns and 123869 nonzeros Presolve time: 0.07s Presolved: 687 rows, 1275 columns, 123869 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 573.0000000 550.84524 3.87% - 0s 0 0 551.50986 0 62 573.00000 551.50986 3.75% - 0s 0 0 551.50986 0 56 573.00000 551.50986 3.75% - 0s 0 0 551.92761 0 64 573.00000 551.92761 3.68% - 0s 0 0 552.20936 0 70 573.00000 552.20936 3.63% - 0s 0 0 552.23265 0 69 573.00000 552.23265 3.62% - 0s 0 0 552.26070 0 75 573.00000 552.26070 3.62% - 0s 0 0 552.28485 0 76 573.00000 552.28485 3.62% - 0s 0 0 552.35324 0 76 573.00000 552.35324 3.60% - 0s 0 0 552.39336 0 81 573.00000 552.39336 3.60% - 0s 0 0 552.40401 0 80 573.00000 552.40401 3.59% - 0s 0 0 552.41408 0 83 573.00000 552.41408 3.59% - 0s 0 0 552.42959 0 83 573.00000 552.42959 3.59% - 0s 0 0 552.49745 0 72 573.00000 552.49745 3.58% - 0s 0 0 552.49867 0 75 573.00000 552.49867 3.58% - 0s 0 0 552.51443 0 79 573.00000 552.51443 3.58% - 1s 0 0 552.52122 0 81 573.00000 552.52122 3.57% - 1s 0 0 552.54359 0 79 573.00000 552.54359 3.57% - 1s 0 0 552.58386 0 79 573.00000 552.58386 3.56% - 1s 0 0 552.58386 0 82 573.00000 552.58386 3.56% - 1s 0 0 552.66696 0 75 573.00000 552.66696 3.55% - 1s 0 0 552.69973 0 80 573.00000 552.69973 3.54% - 1s 0 0 552.72086 0 78 573.00000 552.72086 3.54% - 1s 0 0 552.72086 0 81 573.00000 552.72086 3.54% - 1s 0 0 552.74092 0 75 573.00000 552.74092 3.54% - 1s 0 0 552.74092 0 79 573.00000 552.74092 3.54% - 1s 0 0 552.75254 0 75 573.00000 552.75254 3.53% - 1s 0 0 552.75623 0 82 573.00000 552.75623 3.53% - 1s 0 0 552.75827 0 84 573.00000 552.75827 3.53% - 1s 0 0 552.77708 0 79 573.00000 552.77708 3.53% - 1s 0 0 552.80711 0 77 573.00000 552.80711 3.52% - 1s 0 0 552.81056 0 76 573.00000 552.81056 3.52% - 1s 0 0 552.81441 0 81 573.00000 552.81441 3.52% - 1s 0 0 552.81554 0 77 573.00000 552.81554 3.52% - 1s 0 0 552.81572 0 80 573.00000 552.81572 3.52% - 1s 0 0 552.81597 0 82 573.00000 552.81597 3.52% - 1s 0 0 552.81615 0 81 573.00000 552.81615 3.52% - 2s 0 0 552.81667 0 81 573.00000 552.81667 3.52% - 2s H 0 0 567.0000000 552.81667 2.50% - 3s 0 2 552.82590 0 81 567.00000 552.82590 2.50% - 3s * 115 71 35 566.0000000 554.33463 2.06% 12.6 3s 601 314 560.30909 15 62 566.00000 556.93458 1.60% 13.4 5s 2470 482 563.61905 19 55 566.00000 559.93750 1.07% 13.0 10s 5786 17 cutoff 24 566.00000 564.90361 0.19% 11.6 15s Cutting planes: Gomory: 1 MIR: 3 Zero half: 13 Mod-K: 1 Explored 5806 nodes (67556 simplex iterations) in 15.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (5, 14), (41, 42), (10, 17), (10, 31), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (20, 41), (20, 43), (14, 42), (43, 45), (31, 50)] adding cut for [(35, 51), (36, 37), (7, 49), (9, 49), (9, 27), (39, 51), (12, 39), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 689 rows, 1275 columns and 124160 nonzeros Presolve time: 0.07s Presolved: 689 rows, 1275 columns, 124160 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.00989 0 67 568.00000 552.00989 2.82% - 0s 0 0 552.14668 0 70 568.00000 552.14668 2.79% - 0s 0 0 552.25010 0 76 568.00000 552.25010 2.77% - 0s 0 0 552.42659 0 69 568.00000 552.42659 2.74% - 0s 0 0 552.42659 0 72 568.00000 552.42659 2.74% - 0s 0 0 552.48148 0 67 568.00000 552.48148 2.73% - 0s 0 0 552.48148 0 71 568.00000 552.48148 2.73% - 0s 0 0 552.48663 0 76 568.00000 552.48663 2.73% - 0s 0 0 552.49099 0 73 568.00000 552.49099 2.73% - 0s 0 0 552.49124 0 75 568.00000 552.49124 2.73% - 0s 0 0 552.49671 0 78 568.00000 552.49671 2.73% - 0s 0 0 552.50911 0 78 568.00000 552.50911 2.73% - 1s 0 0 552.57374 0 83 568.00000 552.57374 2.72% - 1s 0 0 552.60818 0 83 568.00000 552.60818 2.71% - 1s 0 0 552.61638 0 78 568.00000 552.61638 2.71% - 1s 0 0 552.62889 0 84 568.00000 552.62889 2.71% - 1s 0 0 552.63337 0 85 568.00000 552.63337 2.71% - 1s 0 0 552.68620 0 79 568.00000 552.68620 2.70% - 1s 0 0 552.69375 0 81 568.00000 552.69375 2.69% - 1s 0 0 552.70485 0 86 568.00000 552.70485 2.69% - 1s 0 0 552.71436 0 84 568.00000 552.71436 2.69% - 1s 0 0 552.71501 0 85 568.00000 552.71501 2.69% - 1s 0 0 552.71501 0 84 568.00000 552.71501 2.69% - 1s 0 0 552.71501 0 84 568.00000 552.71501 2.69% - 1s H 0 0 567.0000000 552.71501 2.52% - 2s 0 2 552.71629 0 84 567.00000 552.71629 2.52% - 2s * 367 210 19 566.0000000 555.36290 1.88% 12.0 3s 625 330 558.70833 23 47 566.00000 556.59459 1.66% 12.8 5s 3178 667 561.48507 27 52 566.00000 560.00000 1.06% 12.1 10s 6314 530 cutoff 32 566.00000 562.32143 0.65% 11.5 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Mod-K: 1 Explored 7458 nodes (82893 simplex iterations) in 16.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (17, 51), (17, 22), (8, 49), (8, 27), (9, 32), (9, 27), (10, 39), (10, 31), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (29, 32), (31, 35)] adding cut for [(5, 43), (7, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (24, 44), (25, 44)] Optimize a model with 691 rows, 1275 columns and 124379 nonzeros Presolve time: 0.07s Presolved: 691 rows, 1275 columns, 124379 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.24032 0 73 1672.00000 552.24032 67.0% - 0s 0 0 552.30948 0 76 1672.00000 552.30948 67.0% - 0s 0 0 552.31834 0 77 1672.00000 552.31834 67.0% - 0s 0 0 552.33995 0 75 1672.00000 552.33995 67.0% - 0s 0 0 552.37062 0 81 1672.00000 552.37062 67.0% - 0s 0 0 552.41957 0 71 1672.00000 552.41957 67.0% - 1s H 0 0 620.0000000 552.41957 10.9% - 1s H 0 0 581.0000000 552.41957 4.92% - 1s H 0 0 575.0000000 552.41957 3.93% - 1s 0 0 552.42125 0 75 575.00000 552.42125 3.93% - 1s 0 0 552.42125 0 56 575.00000 552.42125 3.93% - 1s 0 0 552.42125 0 71 575.00000 552.42125 3.93% - 1s 0 0 552.44980 0 72 575.00000 552.44980 3.92% - 1s 0 0 552.44980 0 75 575.00000 552.44980 3.92% - 1s 0 0 552.46908 0 76 575.00000 552.46908 3.92% - 1s 0 0 552.46963 0 77 575.00000 552.46963 3.92% - 2s 0 0 552.47829 0 75 575.00000 552.47829 3.92% - 2s 0 0 552.47829 0 79 575.00000 552.47829 3.92% - 2s 0 0 552.52714 0 75 575.00000 552.52714 3.91% - 2s 0 0 552.54561 0 74 575.00000 552.54561 3.91% - 2s 0 0 552.56124 0 81 575.00000 552.56124 3.90% - 2s 0 0 552.61415 0 77 575.00000 552.61415 3.89% - 2s 0 0 552.62898 0 80 575.00000 552.62898 3.89% - 2s 0 0 552.66057 0 81 575.00000 552.66057 3.89% - 2s 0 0 552.67231 0 84 575.00000 552.67231 3.88% - 2s 0 0 552.68065 0 84 575.00000 552.68065 3.88% - 2s 0 0 552.68065 0 84 575.00000 552.68065 3.88% - 2s 0 0 552.68489 0 81 575.00000 552.68489 3.88% - 2s 0 0 552.69684 0 78 575.00000 552.69684 3.88% - 2s 0 0 552.69695 0 75 575.00000 552.69695 3.88% - 2s 0 0 552.69695 0 75 575.00000 552.69695 3.88% - 3s H 0 0 573.0000000 552.69695 3.54% - 3s H 0 0 568.0000000 552.69695 2.69% - 3s 0 2 552.69696 0 75 568.00000 552.69696 2.69% - 3s * 398 225 17 567.0000000 555.57895 2.01% 13.0 4s 565 311 560.14286 10 47 567.00000 556.27419 1.89% 12.2 5s H 600 322 566.0000000 556.28169 1.72% 12.3 5s 1960 554 562.42308 23 48 566.00000 558.83594 1.27% 12.5 10s 5036 652 564.50000 24 20 566.00000 561.97143 0.71% 11.8 15s Cutting planes: Gomory: 6 MIR: 1 Zero half: 8 Explored 6859 nodes (75641 simplex iterations) in 17.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (9, 27), (9, 49), (11, 40), (11, 50), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45)] Optimize a model with 692 rows, 1275 columns and 124610 nonzeros Presolve time: 0.07s Presolved: 692 rows, 1275 columns, 124610 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.80458 0 63 567.00000 551.80458 2.68% - 0s 0 0 551.83569 0 70 567.00000 551.83569 2.67% - 0s 0 0 551.95750 0 74 567.00000 551.95750 2.65% - 0s 0 0 552.07349 0 71 567.00000 552.07349 2.63% - 0s 0 0 552.16570 0 74 567.00000 552.16570 2.62% - 0s 0 0 552.18497 0 73 567.00000 552.18497 2.61% - 0s 0 0 552.19293 0 75 567.00000 552.19293 2.61% - 0s 0 0 552.20689 0 75 567.00000 552.20689 2.61% - 0s 0 0 552.21234 0 78 567.00000 552.21234 2.61% - 0s 0 0 552.23222 0 75 567.00000 552.23222 2.60% - 0s 0 0 552.33410 0 71 567.00000 552.33410 2.59% - 0s 0 0 552.37985 0 78 567.00000 552.37985 2.58% - 0s 0 0 552.39485 0 78 567.00000 552.39485 2.58% - 0s 0 0 552.42089 0 78 567.00000 552.42089 2.57% - 0s 0 0 552.43046 0 79 567.00000 552.43046 2.57% - 0s 0 0 552.43102 0 83 567.00000 552.43102 2.57% - 0s 0 0 552.43247 0 80 567.00000 552.43247 2.57% - 1s 0 0 552.47138 0 73 567.00000 552.47138 2.56% - 1s 0 0 552.47317 0 77 567.00000 552.47317 2.56% - 1s 0 0 552.54385 0 67 567.00000 552.54385 2.55% - 1s 0 0 552.55119 0 76 567.00000 552.55119 2.55% - 1s 0 0 552.58193 0 78 567.00000 552.58193 2.54% - 1s 0 0 552.59826 0 80 567.00000 552.59826 2.54% - 1s 0 0 552.60803 0 82 567.00000 552.60803 2.54% - 1s 0 0 552.61368 0 84 567.00000 552.61368 2.54% - 1s 0 0 552.64218 0 80 567.00000 552.64218 2.53% - 1s 0 0 552.68570 0 79 567.00000 552.68570 2.52% - 1s 0 0 552.68778 0 85 567.00000 552.68778 2.52% - 1s 0 0 552.70769 0 83 567.00000 552.70769 2.52% - 1s 0 0 552.71020 0 86 567.00000 552.71020 2.52% - 1s 0 0 552.71708 0 85 567.00000 552.71708 2.52% - 1s 0 0 552.72914 0 80 567.00000 552.72914 2.52% - 1s 0 0 552.73103 0 78 567.00000 552.73103 2.52% - 1s 0 0 552.73103 0 77 567.00000 552.73103 2.52% - 1s 0 2 552.76177 0 77 567.00000 552.76177 2.51% - 2s H 532 280 566.0000000 556.44186 1.69% 12.8 3s 708 357 559.60000 7 77 566.00000 556.76389 1.63% 12.7 5s 3185 655 562.52941 23 51 566.00000 560.25000 1.02% 12.0 10s 6844 187 cutoff 33 566.00000 563.66667 0.41% 10.9 15s Cutting planes: Gomory: 1 MIR: 1 Zero half: 13 Mod-K: 1 Explored 7116 nodes (76500 simplex iterations) in 15.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (38, 45), (9, 27), (11, 40), (11, 50), (16, 45), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35), (31, 50)] Optimize a model with 693 rows, 1275 columns and 124800 nonzeros Presolve time: 0.07s Presolved: 693 rows, 1275 columns, 124800 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 551.96548 0 67 570.00000 551.96548 3.16% - 0s 0 0 552.03696 0 69 570.00000 552.03696 3.15% - 0s 0 0 552.22090 0 70 570.00000 552.22090 3.12% - 0s 0 0 552.25087 0 72 570.00000 552.25087 3.11% - 0s 0 0 552.27023 0 69 570.00000 552.27023 3.11% - 0s 0 0 552.28321 0 76 570.00000 552.28321 3.11% - 0s 0 0 552.29847 0 72 570.00000 552.29847 3.11% - 0s 0 0 552.40368 0 69 570.00000 552.40368 3.09% - 0s 0 0 552.40903 0 69 570.00000 552.40903 3.09% - 0s 0 0 552.43456 0 76 570.00000 552.43456 3.08% - 0s 0 0 552.43456 0 79 570.00000 552.43456 3.08% - 0s 0 0 552.48219 0 65 570.00000 552.48219 3.07% - 0s 0 0 552.48219 0 69 570.00000 552.48219 3.07% - 1s 0 0 552.53113 0 72 570.00000 552.53113 3.06% - 1s 0 0 552.53113 0 77 570.00000 552.53113 3.06% - 1s 0 0 552.54704 0 73 570.00000 552.54704 3.06% - 1s 0 0 552.54735 0 77 570.00000 552.54735 3.06% - 1s 0 0 552.58824 0 68 570.00000 552.58824 3.05% - 1s 0 0 552.58824 0 72 570.00000 552.58824 3.05% - 1s 0 0 552.59271 0 75 570.00000 552.59271 3.05% - 1s 0 0 552.59960 0 81 570.00000 552.59960 3.05% - 1s 0 0 552.62973 0 76 570.00000 552.62973 3.05% - 1s 0 0 552.63554 0 81 570.00000 552.63554 3.05% - 1s 0 0 552.65073 0 77 570.00000 552.65073 3.04% - 1s 0 0 552.65073 0 81 570.00000 552.65073 3.04% - 1s 0 0 552.65676 0 79 570.00000 552.65676 3.04% - 1s 0 0 552.66125 0 83 570.00000 552.66125 3.04% - 1s 0 0 552.67817 0 74 570.00000 552.67817 3.04% - 1s 0 0 552.67856 0 82 570.00000 552.67856 3.04% - 1s 0 0 552.71362 0 78 570.00000 552.71362 3.03% - 1s 0 0 552.71512 0 81 570.00000 552.71512 3.03% - 1s 0 0 552.71822 0 85 570.00000 552.71822 3.03% - 1s 0 0 552.72177 0 88 570.00000 552.72177 3.03% - 1s 0 0 552.72177 0 88 570.00000 552.72177 3.03% - 2s H 0 0 569.0000000 552.72177 2.86% - 2s 0 2 552.75485 0 88 569.00000 552.75485 2.86% - 2s H 105 83 568.0000000 554.06430 2.45% 13.6 3s H 160 103 567.0000000 554.22794 2.25% 12.5 3s * 258 161 19 566.0000000 554.93685 1.95% 13.9 3s 601 350 563.86207 18 62 566.00000 556.27273 1.72% 13.2 5s 2133 628 562.12245 32 52 566.00000 558.20652 1.38% 12.8 10s 4973 984 564.00000 29 22 566.00000 560.60000 0.95% 11.8 15s 8230 668 562.50000 30 12 566.00000 562.50000 0.62% 11.2 20s Cutting planes: Gomory: 8 MIR: 2 Zero half: 12 Explored 9920 nodes (106383 simplex iterations) in 22.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 23), (3, 33), (4, 29), (4, 37), (5, 14), (5, 19), (9, 23), (9, 27), (10, 17), (10, 31), (11, 31), (11, 40), (14, 42), (16, 38), (16, 46), (17, 51), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (41, 42), (43, 45)] Optimize a model with 694 rows, 1275 columns and 125296 nonzeros Presolve time: 0.07s Presolved: 694 rows, 1275 columns, 125296 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.99708 0 68 1672.00000 551.99708 67.0% - 0s 0 0 552.18315 0 69 1672.00000 552.18315 67.0% - 0s 0 0 552.20679 0 70 1672.00000 552.20679 67.0% - 0s 0 0 552.24032 0 73 1672.00000 552.24032 67.0% - 0s 0 0 552.30948 0 76 1672.00000 552.30948 67.0% - 0s 0 0 552.31834 0 77 1672.00000 552.31834 67.0% - 0s 0 0 552.33995 0 75 1672.00000 552.33995 67.0% - 0s 0 0 552.37062 0 81 1672.00000 552.37062 67.0% - 0s 0 0 552.41957 0 71 1672.00000 552.41957 67.0% - 1s H 0 0 743.0000000 552.41957 25.7% - 1s H 0 0 581.0000000 552.41957 4.92% - 1s H 0 0 575.0000000 552.41957 3.93% - 1s 0 0 552.42234 0 76 575.00000 552.42234 3.93% - 1s 0 0 552.42234 0 56 575.00000 552.42234 3.93% - 1s 0 0 552.42234 0 71 575.00000 552.42234 3.93% - 1s 0 0 552.45458 0 75 575.00000 552.45458 3.92% - 1s 0 0 552.48923 0 74 575.00000 552.48923 3.91% - 1s 0 0 552.48923 0 75 575.00000 552.48923 3.91% - 1s 0 0 552.50125 0 73 575.00000 552.50125 3.91% - 2s 0 0 552.50146 0 75 575.00000 552.50146 3.91% - 2s 0 0 552.51618 0 80 575.00000 552.51618 3.91% - 2s 0 0 552.52209 0 82 575.00000 552.52209 3.91% - 2s 0 0 552.53579 0 79 575.00000 552.53579 3.91% - 2s 0 0 552.58179 0 78 575.00000 552.58179 3.90% - 2s 0 0 552.58687 0 79 575.00000 552.58687 3.90% - 2s 0 0 552.58991 0 81 575.00000 552.58991 3.90% - 2s 0 0 552.59197 0 81 575.00000 552.59197 3.90% - 2s 0 0 552.59395 0 84 575.00000 552.59395 3.90% - 2s 0 0 552.59570 0 79 575.00000 552.59570 3.90% - 2s 0 0 552.59582 0 83 575.00000 552.59582 3.90% - 2s 0 0 552.59582 0 82 575.00000 552.59582 3.90% - 3s H 0 0 571.0000000 552.59582 3.22% - 3s H 0 0 567.0000000 552.59582 2.54% - 3s 0 2 552.59872 0 82 567.00000 552.59872 2.54% - 3s * 206 131 31 566.0000000 554.72178 1.99% 12.2 4s 527 265 cutoff 13 566.00000 556.79487 1.63% 12.8 5s 2180 561 cutoff 28 566.00000 558.57500 1.31% 12.6 10s 5151 550 563.36486 36 53 566.00000 561.66667 0.77% 12.2 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 6716 nodes (78646 simplex iterations) in 17.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35), (31, 39)] adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (6, 38), (10, 50), (10, 51), (11, 40), (11, 50), (16, 38), (16, 46), (17, 51)] Optimize a model with 696 rows, 1275 columns and 125479 nonzeros Presolve time: 0.07s Presolved: 696 rows, 1275 columns, 125479 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21565 0 74 567.00000 552.21565 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44238 0 75 567.00000 552.44238 2.57% - 0s 0 0 552.45011 0 75 567.00000 552.45011 2.57% - 0s 0 0 552.48386 0 78 567.00000 552.48386 2.56% - 0s 0 0 552.50077 0 77 567.00000 552.50077 2.56% - 0s 0 0 552.51276 0 77 567.00000 552.51276 2.56% - 0s 0 0 552.52114 0 72 567.00000 552.52114 2.55% - 0s 0 0 552.52676 0 78 567.00000 552.52676 2.55% - 0s 0 0 552.53350 0 81 567.00000 552.53350 2.55% - 1s 0 0 552.54142 0 80 567.00000 552.54142 2.55% - 1s 0 0 552.54377 0 79 567.00000 552.54377 2.55% - 1s 0 0 552.54395 0 76 567.00000 552.54395 2.55% - 1s 0 0 552.54598 0 83 567.00000 552.54598 2.55% - 1s 0 0 552.54598 0 83 567.00000 552.54598 2.55% - 1s 0 2 552.55242 0 83 567.00000 552.55242 2.55% - 1s H 54 33 566.0000000 554.03333 2.11% 12.7 2s 685 333 561.00000 30 44 566.00000 557.50820 1.50% 13.1 5s 3377 636 cutoff 31 566.00000 560.50000 0.97% 11.8 10s Cutting planes: Gomory: 1 Zero half: 15 Explored 6258 nodes (69690 simplex iterations) in 14.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (6, 16), (9, 23), (9, 27), (10, 31), (10, 50), (11, 40), (11, 50), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 697 rows, 1275 columns and 125732 nonzeros Presolve time: 0.07s Presolved: 697 rows, 1275 columns, 125732 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s H 0 0 567.0000000 551.80458 2.68% - 0s 0 0 552.01038 0 67 567.00000 552.01038 2.64% - 0s 0 0 552.15198 0 72 567.00000 552.15198 2.62% - 0s 0 0 552.24124 0 69 567.00000 552.24124 2.60% - 0s 0 0 552.35718 0 68 567.00000 552.35718 2.58% - 0s 0 0 552.35718 0 72 567.00000 552.35718 2.58% - 0s 0 0 552.39837 0 72 567.00000 552.39837 2.58% - 0s 0 0 552.41225 0 73 567.00000 552.41225 2.57% - 0s 0 0 552.43022 0 73 567.00000 552.43022 2.57% - 0s 0 0 552.43796 0 67 567.00000 552.43796 2.57% - 0s 0 0 552.44322 0 73 567.00000 552.44322 2.57% - 0s 0 0 552.47609 0 77 567.00000 552.47609 2.56% - 0s 0 0 552.48645 0 80 567.00000 552.48645 2.56% - 0s 0 0 552.51461 0 75 567.00000 552.51461 2.55% - 0s 0 0 552.54661 0 76 567.00000 552.54661 2.55% - 0s 0 0 552.57948 0 77 567.00000 552.57948 2.54% - 1s 0 0 552.58944 0 79 567.00000 552.58944 2.54% - 1s 0 0 552.61155 0 76 567.00000 552.61155 2.54% - 1s 0 0 552.61469 0 82 567.00000 552.61469 2.54% - 1s 0 0 552.62443 0 81 567.00000 552.62443 2.54% - 1s 0 0 552.63353 0 78 567.00000 552.63353 2.53% - 1s 0 0 552.63795 0 84 567.00000 552.63795 2.53% - 1s 0 2 552.65073 0 84 567.00000 552.65073 2.53% - 1s H 635 324 566.0000000 556.64024 1.65% 12.0 4s 693 339 561.25641 37 53 566.00000 556.64024 1.65% 12.6 5s 3373 601 564.42857 34 43 566.00000 561.00000 0.88% 12.0 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Explored 5720 nodes (63864 simplex iterations) in 13.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (6, 16), (9, 27), (10, 50), (10, 31), (11, 40), (11, 50), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 698 rows, 1275 columns and 125942 nonzeros Presolve time: 0.07s Presolved: 698 rows, 1275 columns, 125942 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 551.96718 0 63 571.00000 551.96718 3.33% - 0s 0 0 552.14069 0 68 571.00000 552.14069 3.30% - 0s 0 0 552.16110 0 68 571.00000 552.16110 3.30% - 0s 0 0 552.18331 0 72 571.00000 552.18331 3.30% - 0s 0 0 552.26575 0 72 571.00000 552.26575 3.28% - 0s 0 0 552.36199 0 69 571.00000 552.36199 3.26% - 0s 0 0 552.41091 0 72 571.00000 552.41091 3.26% - 0s 0 0 552.42508 0 73 571.00000 552.42508 3.25% - 0s 0 0 552.42645 0 73 571.00000 552.42645 3.25% - 0s 0 0 552.42751 0 77 571.00000 552.42751 3.25% - 0s 0 0 552.42789 0 74 571.00000 552.42789 3.25% - 1s 0 0 552.42798 0 77 571.00000 552.42798 3.25% - 1s H 0 0 569.0000000 552.42798 2.91% - 1s 0 2 552.42833 0 77 569.00000 552.42833 2.91% - 1s * 362 198 29 567.0000000 555.30865 2.06% 12.2 2s 699 329 565.50000 34 28 567.00000 556.33040 1.88% 13.3 5s * 933 326 24 566.0000000 556.33040 1.71% 13.0 5s 3262 509 563.66667 20 19 566.00000 560.61111 0.95% 12.2 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Mod-K: 1 Explored 5714 nodes (64062 simplex iterations) in 13.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 18), (8, 24), (8, 27), (14, 42), (15, 25), (15, 26), (16, 45), (16, 46), (18, 38), (19, 26), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (27, 32), (29, 32), (31, 35), (31, 40), (34, 40), (34, 46), (36, 37), (41, 43), (43, 45)] Optimize a model with 699 rows, 1275 columns and 126407 nonzeros Presolve time: 0.07s Presolved: 699 rows, 1275 columns, 126407 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 575.0000000 550.84524 4.20% - 0s 0 0 551.50986 0 62 575.00000 551.50986 4.09% - 0s 0 0 551.50986 0 56 575.00000 551.50986 4.09% - 0s 0 0 551.92761 0 64 575.00000 551.92761 4.01% - 0s 0 0 552.20793 0 70 575.00000 552.20793 3.96% - 0s 0 0 552.22892 0 72 575.00000 552.22892 3.96% - 0s 0 0 552.25881 0 72 575.00000 552.25881 3.95% - 0s 0 0 552.26622 0 71 575.00000 552.26622 3.95% - 0s 0 0 552.29441 0 77 575.00000 552.29441 3.95% - 0s 0 0 552.31128 0 77 575.00000 552.31128 3.95% - 0s 0 0 552.33252 0 74 575.00000 552.33252 3.94% - 0s 0 0 552.35228 0 79 575.00000 552.35228 3.94% - 0s 0 0 552.40501 0 77 575.00000 552.40501 3.93% - 0s 0 0 552.44378 0 81 575.00000 552.44378 3.92% - 0s 0 0 552.46815 0 73 575.00000 552.46815 3.92% - 1s 0 0 552.49968 0 81 575.00000 552.49968 3.91% - 1s 0 0 552.51585 0 76 575.00000 552.51585 3.91% - 1s 0 0 552.56472 0 85 575.00000 552.56472 3.90% - 1s 0 0 552.60099 0 82 575.00000 552.60099 3.90% - 1s 0 0 552.61622 0 80 575.00000 552.61622 3.89% - 1s 0 0 552.62563 0 83 575.00000 552.62563 3.89% - 1s 0 0 552.64599 0 79 575.00000 552.64599 3.89% - 1s 0 0 552.65268 0 82 575.00000 552.65268 3.89% - 1s 0 0 552.68906 0 84 575.00000 552.68906 3.88% - 1s 0 0 552.68906 0 87 575.00000 552.68906 3.88% - 1s 0 0 552.72583 0 82 575.00000 552.72583 3.87% - 1s 0 0 552.72611 0 86 575.00000 552.72611 3.87% - 1s 0 0 552.76027 0 83 575.00000 552.76027 3.87% - 1s 0 0 552.76941 0 85 575.00000 552.76941 3.87% - 1s 0 0 552.77881 0 85 575.00000 552.77881 3.86% - 1s 0 0 552.78011 0 88 575.00000 552.78011 3.86% - 1s 0 0 552.82158 0 83 575.00000 552.82158 3.86% - 1s 0 0 552.82186 0 86 575.00000 552.82186 3.86% - 1s 0 0 552.82668 0 86 575.00000 552.82668 3.86% - 1s 0 0 552.83275 0 85 575.00000 552.83275 3.86% - 2s H 0 0 574.0000000 552.83275 3.69% - 3s 0 2 552.83927 0 85 574.00000 552.83927 3.69% - 3s * 43 41 33 571.0000000 554.44662 2.90% 15.0 3s * 139 98 33 568.0000000 554.62262 2.36% 11.6 4s * 262 161 30 567.0000000 554.94921 2.13% 11.6 4s 601 317 560.08955 7 62 567.00000 556.66667 1.82% 12.1 5s * 934 362 31 566.0000000 556.66667 1.65% 13.1 8s 1514 356 562.40000 23 46 566.00000 558.12500 1.39% 12.9 10s 4084 411 562.50000 25 46 566.00000 562.00000 0.71% 12.0 15s Cutting planes: Gomory: 9 MIR: 3 Zero half: 9 Explored 5462 nodes (61527 simplex iterations) in 16.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (6, 50), (41, 43), (11, 40), (11, 31), (16, 45), (16, 46), (20, 41), (20, 42), (14, 42), (14, 19), (31, 50)] Optimize a model with 700 rows, 1275 columns and 126512 nonzeros Presolve time: 0.07s Presolved: 700 rows, 1275 columns, 126512 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.01055 0 68 569.00000 552.01055 2.99% - 0s 0 0 552.14186 0 70 569.00000 552.14186 2.96% - 0s 0 0 552.17278 0 72 569.00000 552.17278 2.96% - 0s 0 0 552.22236 0 73 569.00000 552.22236 2.95% - 0s 0 0 552.35037 0 67 569.00000 552.35037 2.93% - 0s 0 0 552.35037 0 71 569.00000 552.35037 2.93% - 0s 0 0 552.38231 0 69 569.00000 552.38231 2.92% - 0s 0 0 552.38231 0 73 569.00000 552.38231 2.92% - 0s 0 0 552.41584 0 77 569.00000 552.41584 2.91% - 0s 0 0 552.42484 0 71 569.00000 552.42484 2.91% - 0s 0 0 552.42484 0 75 569.00000 552.42484 2.91% - 0s 0 0 552.42652 0 78 569.00000 552.42652 2.91% - 0s 0 0 552.46960 0 69 569.00000 552.46960 2.91% - 1s 0 0 552.46960 0 72 569.00000 552.46960 2.91% - 1s 0 0 552.47975 0 72 569.00000 552.47975 2.90% - 1s 0 0 552.47975 0 76 569.00000 552.47975 2.90% - 1s 0 0 552.48714 0 76 569.00000 552.48714 2.90% - 1s 0 0 552.48714 0 79 569.00000 552.48714 2.90% - 1s 0 0 552.49725 0 77 569.00000 552.49725 2.90% - 1s 0 0 552.49795 0 81 569.00000 552.49795 2.90% - 1s 0 0 552.55730 0 75 569.00000 552.55730 2.89% - 1s 0 0 552.56826 0 76 569.00000 552.56826 2.89% - 1s 0 0 552.59051 0 76 569.00000 552.59051 2.88% - 1s 0 0 552.59051 0 79 569.00000 552.59051 2.88% - 1s 0 0 552.62537 0 80 569.00000 552.62537 2.88% - 1s 0 0 552.62537 0 83 569.00000 552.62537 2.88% - 1s 0 0 552.64913 0 74 569.00000 552.64913 2.87% - 1s 0 0 552.65303 0 75 569.00000 552.65303 2.87% - 1s 0 0 552.67328 0 79 569.00000 552.67328 2.87% - 1s 0 0 552.67977 0 84 569.00000 552.67977 2.87% - 1s 0 0 552.70244 0 83 569.00000 552.70244 2.86% - 1s 0 0 552.71152 0 79 569.00000 552.71152 2.86% - 1s 0 0 552.71152 0 82 569.00000 552.71152 2.86% - 1s 0 0 552.72133 0 78 569.00000 552.72133 2.86% - 1s 0 0 552.72133 0 81 569.00000 552.72133 2.86% - 1s 0 0 552.72502 0 79 569.00000 552.72502 2.86% - 2s 0 0 552.72502 0 82 569.00000 552.72502 2.86% - 2s 0 0 552.73029 0 80 569.00000 552.73029 2.86% - 2s 0 0 552.73490 0 84 569.00000 552.73490 2.86% - 2s 0 0 552.73770 0 86 569.00000 552.73770 2.86% - 2s 0 0 552.73909 0 88 569.00000 552.73909 2.86% - 2s H 0 0 568.0000000 552.73909 2.69% - 3s 0 2 552.74479 0 88 568.00000 552.74479 2.69% - 3s 601 310 559.04762 8 62 568.00000 556.28146 2.06% 13.0 5s * 741 342 34 566.0000000 556.28146 1.72% 14.5 8s 1525 345 561.70732 20 57 566.00000 558.12281 1.39% 13.7 10s 4346 518 565.00000 23 26 566.00000 561.80000 0.74% 12.5 15s Cutting planes: Gomory: 8 MIR: 2 Zero half: 10 Explored 5957 nodes (69585 simplex iterations) in 17.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 30), (3, 33), (5, 14), (5, 48), (10, 31), (10, 50), (11, 40), (11, 50), (14, 42), (16, 45), (16, 46), (17, 22), (17, 51), (20, 41), (20, 42), (22, 30), (31, 35), (34, 40), (34, 46), (35, 51), (41, 43), (43, 45)] Optimize a model with 701 rows, 1275 columns and 126765 nonzeros Presolve time: 0.07s Presolved: 701 rows, 1275 columns, 126765 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21565 0 74 567.00000 552.21565 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44238 0 75 567.00000 552.44238 2.57% - 0s 0 0 552.45011 0 75 567.00000 552.45011 2.57% - 0s 0 0 552.48386 0 78 567.00000 552.48386 2.56% - 0s 0 0 552.50077 0 77 567.00000 552.50077 2.56% - 0s 0 0 552.51276 0 77 567.00000 552.51276 2.56% - 0s 0 0 552.52114 0 72 567.00000 552.52114 2.55% - 0s 0 0 552.52676 0 78 567.00000 552.52676 2.55% - 0s 0 0 552.53350 0 81 567.00000 552.53350 2.55% - 0s 0 0 552.54142 0 80 567.00000 552.54142 2.55% - 0s 0 0 552.54377 0 79 567.00000 552.54377 2.55% - 1s 0 0 552.54395 0 76 567.00000 552.54395 2.55% - 1s 0 0 552.54598 0 83 567.00000 552.54598 2.55% - 1s 0 0 552.54598 0 83 567.00000 552.54598 2.55% - 1s 0 2 552.55531 0 82 567.00000 552.55531 2.55% - 2s 610 332 556.69737 15 68 567.00000 556.69737 1.82% 13.0 5s * 862 382 38 566.0000000 556.69737 1.64% 13.6 6s 3191 516 563.36364 31 32 566.00000 561.38462 0.82% 11.9 10s Cutting planes: Gomory: 1 Zero half: 14 Explored 5204 nodes (56725 simplex iterations) in 12.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (6, 10), (9, 49), (9, 27), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (39, 50), (41, 42), (11, 40), (11, 50), (16, 45), (16, 46), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 703 rows, 1275 columns and 126976 nonzeros Presolve time: 0.07s Presolved: 703 rows, 1275 columns, 126976 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.97037 0 66 572.00000 551.97037 3.50% - 0s 0 0 552.13943 0 68 572.00000 552.13943 3.47% - 0s 0 0 552.16110 0 68 572.00000 552.16110 3.47% - 0s 0 0 552.18331 0 72 572.00000 552.18331 3.46% - 0s 0 0 552.26575 0 72 572.00000 552.26575 3.45% - 0s 0 0 552.36199 0 69 572.00000 552.36199 3.43% - 0s 0 0 552.41091 0 72 572.00000 552.41091 3.42% - 0s 0 0 552.42508 0 73 572.00000 552.42508 3.42% - 0s 0 0 552.42665 0 74 572.00000 552.42665 3.42% - 0s 0 0 552.42745 0 74 572.00000 552.42745 3.42% - 0s 0 0 552.42908 0 72 572.00000 552.42908 3.42% - 1s 0 0 552.47379 0 75 572.00000 552.47379 3.41% - 1s 0 0 552.51190 0 72 572.00000 552.51190 3.41% - 1s 0 0 552.51616 0 77 572.00000 552.51616 3.41% - 1s 0 0 552.54563 0 73 572.00000 552.54563 3.40% - 1s 0 0 552.55542 0 80 572.00000 552.55542 3.40% - 1s 0 0 552.57029 0 79 572.00000 552.57029 3.40% - 1s 0 0 552.57952 0 78 572.00000 552.57952 3.40% - 1s 0 0 552.59653 0 73 572.00000 552.59653 3.39% - 1s 0 0 552.63848 0 74 572.00000 552.63848 3.38% - 1s 0 0 552.64608 0 80 572.00000 552.64608 3.38% - 1s 0 0 552.67785 0 66 572.00000 552.67785 3.38% - 1s 0 0 552.68157 0 78 572.00000 552.68157 3.38% - 1s 0 0 552.68360 0 78 572.00000 552.68360 3.38% - 1s 0 0 552.68929 0 83 572.00000 552.68929 3.38% - 1s 0 0 552.69370 0 84 572.00000 552.69370 3.38% - 1s 0 0 552.70539 0 78 572.00000 552.70539 3.37% - 1s 0 0 552.70708 0 80 572.00000 552.70708 3.37% - 1s 0 0 552.70708 0 80 572.00000 552.70708 3.37% - 2s H 0 0 571.0000000 552.70708 3.20% - 2s 0 2 552.71006 0 80 571.00000 552.71006 3.20% - 2s * 111 75 43 569.0000000 554.45709 2.56% 10.1 2s H 319 166 567.0000000 555.04773 2.11% 12.0 3s * 409 199 23 566.0000000 555.26190 1.90% 12.2 3s 603 274 560.39538 7 56 566.00000 556.34066 1.71% 12.5 5s 1785 422 564.50000 22 38 566.00000 558.89286 1.26% 13.1 10s 4858 307 564.14286 20 46 566.00000 562.94872 0.54% 12.0 15s Cutting planes: Gomory: 10 MIR: 2 Zero half: 6 Mod-K: 1 Explored 5590 nodes (64711 simplex iterations) in 16.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (39, 50), (9, 23), (9, 27), (10, 35), (10, 50), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (6, 16), (11, 40), (11, 31), (16, 46), (17, 51), (31, 51)] Optimize a model with 705 rows, 1275 columns and 127151 nonzeros Presolve time: 0.07s Presolved: 705 rows, 1275 columns, 127151 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 552.01038 0 67 568.00000 552.01038 2.82% - 0s 0 0 552.15198 0 72 568.00000 552.15198 2.79% - 0s 0 0 552.24124 0 69 568.00000 552.24124 2.77% - 0s 0 0 552.35718 0 68 568.00000 552.35718 2.75% - 0s 0 0 552.35718 0 72 568.00000 552.35718 2.75% - 0s 0 0 552.39837 0 72 568.00000 552.39837 2.75% - 0s 0 0 552.41225 0 73 568.00000 552.41225 2.74% - 0s 0 0 552.43022 0 73 568.00000 552.43022 2.74% - 0s 0 0 552.43796 0 67 568.00000 552.43796 2.74% - 0s 0 0 552.44302 0 72 568.00000 552.44302 2.74% - 0s 0 0 552.44804 0 73 568.00000 552.44804 2.74% - 0s 0 0 552.45133 0 72 568.00000 552.45133 2.74% - 0s 0 0 552.48036 0 77 568.00000 552.48036 2.73% - 0s 0 0 552.48067 0 81 568.00000 552.48067 2.73% - 1s 0 0 552.48625 0 81 568.00000 552.48625 2.73% - 1s 0 0 552.52064 0 75 568.00000 552.52064 2.73% - 1s 0 0 552.53737 0 80 568.00000 552.53737 2.72% - 1s 0 0 552.54420 0 80 568.00000 552.54420 2.72% - 1s 0 0 552.56579 0 83 568.00000 552.56579 2.72% - 1s 0 0 552.57966 0 82 568.00000 552.57966 2.71% - 1s 0 0 552.58692 0 83 568.00000 552.58692 2.71% - 1s 0 0 552.58812 0 87 568.00000 552.58812 2.71% - 1s 0 0 552.58815 0 84 568.00000 552.58815 2.71% - 1s 0 0 552.59457 0 83 568.00000 552.59457 2.71% - 1s 0 0 552.59489 0 84 568.00000 552.59489 2.71% - 1s 0 0 552.59489 0 84 568.00000 552.59489 2.71% - 2s 0 2 552.60062 0 84 568.00000 552.60062 2.71% - 2s * 217 144 26 567.0000000 554.88488 2.14% 14.6 3s * 225 132 25 566.0000000 554.88488 1.96% 14.4 3s 607 308 560.00000 9 85 566.00000 557.08081 1.58% 12.8 5s 2926 555 562.85417 21 48 566.00000 560.70588 0.94% 12.3 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 5965 nodes (67557 simplex iterations) in 14.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (38, 45), (41, 42), (11, 40), (11, 31), (12, 17), (15, 26), (16, 38), (16, 46), (17, 51), (20, 41), (20, 43), (14, 42), (14, 26), (43, 45), (31, 35)] adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (39, 50), (10, 50), (10, 22), (21, 36), (22, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 707 rows, 1275 columns and 127413 nonzeros Presolve time: 0.07s Presolved: 707 rows, 1275 columns, 127413 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.80458 0 63 568.00000 551.80458 2.85% - 0s 0 0 551.86870 0 73 568.00000 551.86870 2.84% - 0s 0 0 552.05103 0 67 568.00000 552.05103 2.81% - 0s 0 0 552.10628 0 67 568.00000 552.10628 2.80% - 0s 0 0 552.10628 0 71 568.00000 552.10628 2.80% - 0s 0 0 552.11445 0 69 568.00000 552.11445 2.80% - 0s 0 0 552.11445 0 72 568.00000 552.11445 2.80% - 0s 0 0 552.16667 0 62 568.00000 552.16667 2.79% - 0s 0 0 552.16667 0 66 568.00000 552.16667 2.79% - 0s 0 0 552.17169 0 70 568.00000 552.17169 2.79% - 0s 0 0 552.19530 0 71 568.00000 552.19530 2.78% - 0s 0 0 552.20783 0 69 568.00000 552.20783 2.78% - 1s 0 0 552.23275 0 72 568.00000 552.23275 2.78% - 1s 0 0 552.25742 0 67 568.00000 552.25742 2.77% - 1s 0 0 552.26063 0 70 568.00000 552.26063 2.77% - 1s 0 0 552.43780 0 69 568.00000 552.43780 2.74% - 1s 0 0 552.43780 0 72 568.00000 552.43780 2.74% - 1s 0 0 552.47371 0 67 568.00000 552.47371 2.73% - 1s 0 0 552.47655 0 77 568.00000 552.47655 2.73% - 1s 0 0 552.54141 0 75 568.00000 552.54141 2.72% - 1s 0 0 552.54269 0 79 568.00000 552.54269 2.72% - 1s 0 0 552.56335 0 79 568.00000 552.56335 2.72% - 1s 0 0 552.59920 0 74 568.00000 552.59920 2.71% - 1s 0 0 552.61680 0 79 568.00000 552.61680 2.71% - 1s 0 0 552.62294 0 83 568.00000 552.62294 2.71% - 1s 0 0 552.62546 0 75 568.00000 552.62546 2.71% - 1s 0 0 552.63076 0 82 568.00000 552.63076 2.71% - 1s 0 0 552.64222 0 79 568.00000 552.64222 2.70% - 1s 0 0 552.65403 0 81 568.00000 552.65403 2.70% - 1s 0 0 552.65408 0 84 568.00000 552.65408 2.70% - 1s 0 0 552.65418 0 85 568.00000 552.65418 2.70% - 1s 0 0 552.65970 0 82 568.00000 552.65970 2.70% - 1s 0 0 552.66714 0 86 568.00000 552.66714 2.70% - 1s 0 0 552.70394 0 80 568.00000 552.70394 2.69% - 1s 0 0 552.78223 0 77 568.00000 552.78223 2.68% - 1s 0 0 552.80665 0 84 568.00000 552.80665 2.67% - 1s 0 0 552.81422 0 87 568.00000 552.81422 2.67% - 1s 0 0 552.84939 0 78 568.00000 552.84939 2.67% - 1s 0 0 552.86679 0 83 568.00000 552.86679 2.66% - 1s 0 0 552.86980 0 84 568.00000 552.86980 2.66% - 1s 0 0 552.87067 0 86 568.00000 552.87067 2.66% - 2s 0 0 552.87430 0 81 568.00000 552.87430 2.66% - 2s 0 0 552.87430 0 81 568.00000 552.87430 2.66% - 2s 0 2 552.89142 0 81 568.00000 552.89142 2.66% - 2s H 66 45 567.0000000 554.40000 2.22% 14.6 3s * 519 272 21 566.0000000 556.31343 1.71% 12.5 4s 610 320 564.11382 22 62 566.00000 556.66667 1.65% 12.2 5s 1849 424 cutoff 29 566.00000 558.81395 1.27% 12.3 10s 4816 556 563.71429 24 41 566.00000 561.70701 0.76% 11.9 15s Cutting planes: Gomory: 6 MIR: 1 Zero half: 13 Explored 6620 nodes (73581 simplex iterations) in 17.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 17), (2, 23), (4, 37), (4, 29), (10, 51), (10, 31), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] adding cut for [(5, 48), (5, 18), (38, 45), (41, 42), (43, 45), (14, 42), (14, 19), (18, 38), (20, 41), (20, 43)] Optimize a model with 709 rows, 1275 columns and 127588 nonzeros Presolve time: 0.07s Presolved: 709 rows, 1275 columns, 127588 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21735 0 74 567.00000 552.21735 2.61% - 0s 0 0 552.23990 0 76 567.00000 552.23990 2.60% - 0s 0 0 552.26562 0 74 567.00000 552.26562 2.60% - 0s 0 0 552.36461 0 70 567.00000 552.36461 2.58% - 0s 0 0 552.36719 0 76 567.00000 552.36719 2.58% - 0s 0 0 552.42950 0 69 567.00000 552.42950 2.57% - 0s 0 0 552.42950 0 73 567.00000 552.42950 2.57% - 0s 0 0 552.43872 0 78 567.00000 552.43872 2.57% - 0s 0 0 552.45055 0 80 567.00000 552.45055 2.57% - 0s 0 0 552.46023 0 82 567.00000 552.46023 2.56% - 0s 0 0 552.47625 0 78 567.00000 552.47625 2.56% - 0s 0 0 552.48353 0 78 567.00000 552.48353 2.56% - 1s 0 0 552.54295 0 77 567.00000 552.54295 2.55% - 1s 0 0 552.55452 0 84 567.00000 552.55452 2.55% - 1s 0 0 552.55879 0 83 567.00000 552.55879 2.55% - 1s 0 0 552.56051 0 84 567.00000 552.56051 2.55% - 1s 0 0 552.56740 0 80 567.00000 552.56740 2.55% - 1s 0 0 552.59361 0 77 567.00000 552.59361 2.54% - 1s 0 0 552.63532 0 75 567.00000 552.63532 2.53% - 1s 0 0 552.66439 0 79 567.00000 552.66439 2.53% - 1s 0 0 552.67303 0 77 567.00000 552.67303 2.53% - 1s 0 2 552.69298 0 77 567.00000 552.69298 2.52% - 2s H 27 22 566.0000000 554.18001 2.09% 16.5 2s 609 288 556.75898 10 75 566.00000 556.75898 1.63% 13.4 5s 3186 732 562.06667 25 55 566.00000 560.00000 1.06% 12.3 10s 6505 522 563.00000 27 31 566.00000 562.62500 0.60% 11.5 15s Cutting planes: Gomory: 1 Zero half: 14 Explored 7670 nodes (84482 simplex iterations) in 16.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (35, 51), (4, 37), (4, 29), (6, 16), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35), (31, 50)] Optimize a model with 710 rows, 1275 columns and 127778 nonzeros Presolve time: 0.07s Presolved: 710 rows, 1275 columns, 127778 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 134 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16636 0 69 567.00000 552.16636 2.62% - 0s 0 0 552.22086 0 76 567.00000 552.22086 2.61% - 0s 0 0 552.33346 0 67 567.00000 552.33346 2.59% - 0s 0 0 552.33410 0 70 567.00000 552.33410 2.59% - 0s 0 0 552.37432 0 72 567.00000 552.37432 2.58% - 0s 0 0 552.37432 0 75 567.00000 552.37432 2.58% - 0s 0 0 552.40836 0 64 567.00000 552.40836 2.57% - 0s 0 0 552.41414 0 68 567.00000 552.41414 2.57% - 0s 0 0 552.43029 0 73 567.00000 552.43029 2.57% - 0s 0 0 552.47449 0 77 567.00000 552.47449 2.56% - 0s 0 0 552.48961 0 77 567.00000 552.48961 2.56% - 1s 0 0 552.53380 0 74 567.00000 552.53380 2.55% - 1s 0 0 552.53946 0 77 567.00000 552.53946 2.55% - 1s 0 0 552.56161 0 79 567.00000 552.56161 2.55% - 1s 0 0 552.58172 0 77 567.00000 552.58172 2.54% - 1s 0 0 552.59294 0 80 567.00000 552.59294 2.54% - 1s 0 0 552.66341 0 80 567.00000 552.66341 2.53% - 1s 0 0 552.66916 0 78 567.00000 552.66916 2.53% - 1s 0 0 552.68535 0 82 567.00000 552.68535 2.52% - 1s 0 2 552.69656 0 82 567.00000 552.69656 2.52% - 2s * 212 132 20 566.0000000 554.86885 1.97% 12.6 2s 629 309 559.80000 25 45 566.00000 557.02857 1.59% 13.0 5s 3294 488 cutoff 29 566.00000 561.39286 0.81% 11.9 10s Cutting planes: Gomory: 1 Zero half: 15 Explored 5443 nodes (60984 simplex iterations) in 13.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 16), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (12, 39), (16, 46), (17, 51), (17, 22), (22, 35), (31, 35)] Optimize a model with 711 rows, 1275 columns and 127883 nonzeros Presolve time: 0.07s Presolved: 711 rows, 1275 columns, 127883 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 134 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21564 0 74 567.00000 552.21564 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44941 0 73 567.00000 552.44941 2.57% - 0s 0 0 552.44941 0 76 567.00000 552.44941 2.57% - 0s 0 0 552.47802 0 71 567.00000 552.47802 2.56% - 0s 0 0 552.48414 0 76 567.00000 552.48414 2.56% - 0s 0 0 552.49549 0 76 567.00000 552.49549 2.56% - 0s 0 0 552.49809 0 80 567.00000 552.49809 2.56% - 0s 0 0 552.52223 0 69 567.00000 552.52223 2.55% - 0s 0 0 552.52712 0 79 567.00000 552.52712 2.55% - 1s 0 0 552.56398 0 72 567.00000 552.56398 2.55% - 1s 0 0 552.56541 0 78 567.00000 552.56541 2.55% - 1s 0 0 552.56814 0 79 567.00000 552.56814 2.55% - 1s 0 0 552.57688 0 76 567.00000 552.57688 2.54% - 1s 0 0 552.64422 0 74 567.00000 552.64422 2.53% - 1s 0 0 552.66119 0 81 567.00000 552.66119 2.53% - 1s 0 0 552.67656 0 81 567.00000 552.67656 2.53% - 1s 0 0 552.68181 0 79 567.00000 552.68181 2.53% - 1s 0 0 552.68363 0 80 567.00000 552.68363 2.52% - 1s 0 0 552.68702 0 86 567.00000 552.68702 2.52% - 1s 0 0 552.69016 0 76 567.00000 552.69016 2.52% - 1s 0 0 552.69164 0 83 567.00000 552.69164 2.52% - 1s 0 0 552.69484 0 86 567.00000 552.69484 2.52% - 1s 0 0 552.70001 0 76 567.00000 552.70001 2.52% - 1s 0 0 552.70064 0 86 567.00000 552.70064 2.52% - 1s 0 0 552.70064 0 86 567.00000 552.70064 2.52% - 2s 0 2 552.70249 0 86 567.00000 552.70249 2.52% - 2s 612 355 558.49020 9 77 567.00000 556.40000 1.87% 11.2 5s * 1056 430 26 566.0000000 556.71277 1.64% 12.5 7s 2520 619 563.16667 27 49 566.00000 559.58242 1.13% 12.0 10s 5562 481 563.50000 25 42 566.00000 562.55882 0.61% 11.2 15s Cutting planes: Gomory: 8 Zero half: 8 Explored 6672 nodes (71920 simplex iterations) in 16.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 14), (5, 19), (9, 27), (11, 31), (11, 40), (14, 42), (16, 45), (16, 46), (18, 43), (18, 45), (20, 41), (20, 42), (21, 30), (21, 36), (22, 30), (22, 35), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37), (41, 43)] Optimize a model with 712 rows, 1275 columns and 128208 nonzeros Presolve time: 0.07s Presolved: 712 rows, 1275 columns, 128208 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21564 0 74 567.00000 552.21564 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44947 0 70 567.00000 552.44947 2.57% - 0s 0 0 552.44947 0 73 567.00000 552.44947 2.57% - 0s 0 0 552.46802 0 70 567.00000 552.46802 2.56% - 0s 0 0 552.47409 0 77 567.00000 552.47409 2.56% - 0s 0 0 552.48205 0 82 567.00000 552.48205 2.56% - 0s 0 0 552.55264 0 76 567.00000 552.55264 2.55% - 0s 0 0 552.55264 0 79 567.00000 552.55264 2.55% - 0s 0 0 552.58513 0 69 567.00000 552.58513 2.54% - 1s 0 0 552.59241 0 77 567.00000 552.59241 2.54% - 1s 0 0 552.60363 0 78 567.00000 552.60363 2.54% - 1s 0 0 552.61428 0 78 567.00000 552.61428 2.54% - 1s 0 0 552.61428 0 78 567.00000 552.61428 2.54% - 1s 0 2 552.61526 0 78 567.00000 552.61526 2.54% - 2s * 39 30 32 566.0000000 553.83529 2.15% 11.3 2s 638 320 562.28571 27 41 566.00000 556.55833 1.67% 13.3 5s 3234 600 563.00000 24 35 566.00000 560.27907 1.01% 11.9 10s Cutting planes: Gomory: 2 Zero half: 14 Mod-K: 1 Explored 6406 nodes (69760 simplex iterations) in 14.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (9, 27), (11, 40), (11, 50), (16, 38), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (6, 38), (27, 32), (29, 32), (31, 35), (31, 50)] Optimize a model with 713 rows, 1275 columns and 128418 nonzeros Presolve time: 0.07s Presolved: 713 rows, 1275 columns, 128418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 552.01055 0 68 569.00000 552.01055 2.99% - 0s 0 0 552.14186 0 70 569.00000 552.14186 2.96% - 0s 0 0 552.17278 0 72 569.00000 552.17278 2.96% - 0s 0 0 552.22236 0 73 569.00000 552.22236 2.95% - 0s 0 0 552.35037 0 67 569.00000 552.35037 2.93% - 0s 0 0 552.35037 0 71 569.00000 552.35037 2.93% - 0s 0 0 552.38231 0 69 569.00000 552.38231 2.92% - 0s 0 0 552.38231 0 73 569.00000 552.38231 2.92% - 0s 0 0 552.41584 0 76 569.00000 552.41584 2.91% - 0s 0 0 552.42484 0 72 569.00000 552.42484 2.91% - 0s 0 0 552.42484 0 76 569.00000 552.42484 2.91% - 0s 0 0 552.42652 0 79 569.00000 552.42652 2.91% - 1s 0 0 552.46960 0 69 569.00000 552.46960 2.91% - 1s 0 0 552.46960 0 72 569.00000 552.46960 2.91% - 1s 0 0 552.47975 0 72 569.00000 552.47975 2.90% - 1s 0 0 552.47975 0 76 569.00000 552.47975 2.90% - 1s 0 0 552.48714 0 76 569.00000 552.48714 2.90% - 1s 0 0 552.48714 0 79 569.00000 552.48714 2.90% - 1s 0 0 552.49725 0 77 569.00000 552.49725 2.90% - 1s 0 0 552.49789 0 81 569.00000 552.49789 2.90% - 1s 0 0 552.50820 0 76 569.00000 552.50820 2.90% - 1s 0 0 552.53187 0 76 569.00000 552.53187 2.89% - 1s 0 0 552.53281 0 81 569.00000 552.53281 2.89% - 1s 0 0 552.55058 0 74 569.00000 552.55058 2.89% - 1s 0 0 552.55058 0 78 569.00000 552.55058 2.89% - 1s 0 0 552.57598 0 79 569.00000 552.57598 2.89% - 1s 0 0 552.57598 0 82 569.00000 552.57598 2.89% - 1s 0 0 552.59632 0 79 569.00000 552.59632 2.88% - 1s 0 0 552.59663 0 86 569.00000 552.59663 2.88% - 1s 0 0 552.62862 0 72 569.00000 552.62862 2.88% - 1s 0 0 552.64298 0 80 569.00000 552.64298 2.87% - 1s 0 0 552.64420 0 79 569.00000 552.64420 2.87% - 1s 0 0 552.64453 0 76 569.00000 552.64453 2.87% - 2s 0 0 552.64453 0 76 569.00000 552.64453 2.87% - 2s H 0 0 568.0000000 552.64453 2.70% - 2s 0 2 552.65199 0 76 568.00000 552.65199 2.70% - 2s * 234 148 30 567.0000000 555.06088 2.11% 13.7 3s 601 341 558.49412 13 62 567.00000 556.30435 1.89% 13.4 5s * 1478 402 24 566.0000000 557.50000 1.50% 13.6 8s 2404 643 560.25000 21 31 566.00000 558.80233 1.27% 12.8 10s 5215 739 cutoff 19 566.00000 561.44444 0.80% 12.2 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 7539 nodes (87268 simplex iterations) in 18.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 17), (3, 30), (38, 45), (6, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (22, 35), (22, 30), (18, 38), (31, 35)] adding cut for [(2, 33), (2, 23), (36, 37), (8, 24), (8, 27), (9, 32), (9, 27), (15, 25), (25, 44), (21, 36), (21, 23), (24, 44), (4, 37), (4, 29), (29, 32)] Optimize a model with 715 rows, 1275 columns and 128691 nonzeros Presolve time: 0.07s Presolved: 715 rows, 1275 columns, 128691 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 69 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 73 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 69 572.00000 552.28142 3.45% - 0s 0 0 552.28861 0 77 572.00000 552.28861 3.45% - 0s 0 0 552.30453 0 82 572.00000 552.30453 3.44% - 1s 0 0 552.39999 0 68 572.00000 552.39999 3.43% - 1s 0 0 552.40049 0 71 572.00000 552.40049 3.43% - 1s 0 0 552.40740 0 75 572.00000 552.40740 3.43% - 1s 0 0 552.42923 0 80 572.00000 552.42923 3.42% - 1s 0 0 552.46566 0 78 572.00000 552.46566 3.42% - 1s 0 0 552.47078 0 80 572.00000 552.47078 3.41% - 1s 0 0 552.50321 0 75 572.00000 552.50321 3.41% - 1s 0 0 552.51816 0 79 572.00000 552.51816 3.41% - 1s 0 0 552.52086 0 82 572.00000 552.52086 3.41% - 1s 0 0 552.52409 0 78 572.00000 552.52409 3.40% - 1s 0 0 552.52864 0 83 572.00000 552.52864 3.40% - 1s 0 0 552.55066 0 81 572.00000 552.55066 3.40% - 1s 0 0 552.64793 0 76 572.00000 552.64793 3.38% - 1s 0 0 552.68774 0 81 572.00000 552.68774 3.38% - 1s 0 0 552.72475 0 76 572.00000 552.72475 3.37% - 1s 0 0 552.73492 0 80 572.00000 552.73492 3.37% - 1s 0 0 552.74739 0 79 572.00000 552.74739 3.37% - 1s 0 0 552.75173 0 87 572.00000 552.75173 3.37% - 1s 0 0 552.75823 0 80 572.00000 552.75823 3.36% - 1s 0 0 552.76362 0 84 572.00000 552.76362 3.36% - 1s 0 0 552.77233 0 86 572.00000 552.77233 3.36% - 1s 0 0 552.77517 0 84 572.00000 552.77517 3.36% - 1s 0 0 552.77573 0 86 572.00000 552.77573 3.36% - 1s 0 0 552.77573 0 86 572.00000 552.77573 3.36% - 1s 0 0 552.77573 0 86 572.00000 552.77573 3.36% - 2s H 0 0 570.0000000 552.77573 3.02% - 3s 0 2 552.79030 0 86 570.00000 552.79030 3.02% - 3s * 115 77 33 568.0000000 554.20312 2.43% 13.4 3s * 160 104 34 567.0000000 554.39244 2.22% 13.0 3s * 366 205 19 566.0000000 555.25714 1.90% 13.3 4s 601 301 560.33333 8 62 566.00000 556.15798 1.74% 12.9 5s 2051 450 cutoff 31 566.00000 559.20000 1.20% 12.6 10s 5059 510 564.40000 33 46 566.00000 562.00000 0.71% 11.7 15s Cutting planes: Gomory: 6 MIR: 2 Zero half: 9 Explored 6602 nodes (73067 simplex iterations) in 17.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (6, 39), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 39), (21, 36), (22, 30), (22, 51), (24, 25), (24, 49), (25, 44), (29, 32), (31, 35), (35, 51), (36, 37)] adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (11, 40), (11, 50), (12, 17), (16, 46), (16, 18), (17, 50)] Optimize a model with 717 rows, 1275 columns and 128977 nonzeros Presolve time: 0.07s Presolved: 717 rows, 1275 columns, 128977 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21564 0 74 567.00000 552.21564 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44947 0 70 567.00000 552.44947 2.57% - 0s 0 0 552.44947 0 73 567.00000 552.44947 2.57% - 0s 0 0 552.46802 0 70 567.00000 552.46802 2.56% - 0s 0 0 552.47409 0 77 567.00000 552.47409 2.56% - 0s 0 0 552.48205 0 82 567.00000 552.48205 2.56% - 0s 0 0 552.55264 0 76 567.00000 552.55264 2.55% - 0s 0 0 552.55264 0 79 567.00000 552.55264 2.55% - 0s 0 0 552.58513 0 69 567.00000 552.58513 2.54% - 1s 0 0 552.59241 0 77 567.00000 552.59241 2.54% - 1s 0 0 552.60363 0 78 567.00000 552.60363 2.54% - 1s 0 0 552.61428 0 78 567.00000 552.61428 2.54% - 1s 0 2 552.61526 0 78 567.00000 552.61526 2.54% - 1s H 79 46 566.0000000 554.08459 2.11% 12.7 2s 625 291 564.09524 17 49 566.00000 556.50000 1.68% 13.7 5s 3320 403 562.66667 25 32 566.00000 561.33333 0.82% 12.2 10s Cutting planes: Gomory: 2 Zero half: 14 Mod-K: 1 Explored 4847 nodes (55579 simplex iterations) in 12.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (5, 48), (5, 18), (29, 32), (31, 35)] Optimize a model with 718 rows, 1275 columns and 129187 nonzeros Presolve time: 0.07s Presolved: 718 rows, 1275 columns, 129187 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.00682 0 67 570.00000 552.00682 3.16% - 0s 0 0 552.14955 0 68 570.00000 552.14955 3.13% - 0s 0 0 552.18188 0 69 570.00000 552.18188 3.13% - 0s 0 0 552.30686 0 63 570.00000 552.30686 3.10% - 0s 0 0 552.31579 0 69 570.00000 552.31579 3.10% - 0s 0 0 552.36799 0 68 570.00000 552.36799 3.09% - 0s 0 0 552.37217 0 67 570.00000 552.37217 3.09% - 0s 0 0 552.42215 0 67 570.00000 552.42215 3.08% - 0s 0 0 552.42215 0 71 570.00000 552.42215 3.08% - 0s 0 0 552.43326 0 74 570.00000 552.43326 3.08% - 0s 0 0 552.44417 0 76 570.00000 552.44417 3.08% - 0s 0 0 552.44828 0 77 570.00000 552.44828 3.08% - 0s 0 0 552.45550 0 78 570.00000 552.45550 3.08% - 1s 0 0 552.46804 0 78 570.00000 552.46804 3.08% - 1s 0 0 552.46939 0 83 570.00000 552.46939 3.08% - 1s 0 0 552.50577 0 71 570.00000 552.50577 3.07% - 1s 0 0 552.52806 0 73 570.00000 552.52806 3.07% - 1s 0 0 552.57126 0 76 570.00000 552.57126 3.06% - 1s 0 0 552.57302 0 82 570.00000 552.57302 3.06% - 1s 0 0 552.58991 0 76 570.00000 552.58991 3.05% - 1s 0 0 552.59623 0 75 570.00000 552.59623 3.05% - 1s 0 0 552.59966 0 81 570.00000 552.59966 3.05% - 1s 0 0 552.61091 0 80 570.00000 552.61091 3.05% - 1s 0 0 552.63323 0 77 570.00000 552.63323 3.05% - 1s 0 0 552.64008 0 80 570.00000 552.64008 3.05% - 1s 0 0 552.65659 0 77 570.00000 552.65659 3.04% - 1s 0 0 552.66678 0 80 570.00000 552.66678 3.04% - 1s 0 0 552.66963 0 82 570.00000 552.66963 3.04% - 1s 0 0 552.67041 0 81 570.00000 552.67041 3.04% - 1s 0 0 552.67196 0 85 570.00000 552.67196 3.04% - 1s 0 0 552.68215 0 78 570.00000 552.68215 3.04% - 1s 0 2 552.69711 0 78 570.00000 552.69711 3.04% - 2s H 27 27 567.0000000 553.85315 2.32% 13.6 2s * 420 240 19 566.0000000 555.83333 1.80% 13.3 3s 517 281 560.38462 10 73 566.00000 556.44444 1.69% 12.9 5s 2897 656 561.85656 16 53 566.00000 559.98396 1.06% 12.5 10s 5833 395 cutoff 18 566.00000 562.90909 0.55% 11.8 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Mod-K: 1 Explored 6640 nodes (75967 simplex iterations) in 16.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 12), (3, 17), (5, 19), (5, 14), (41, 42), (10, 17), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (20, 41), (20, 43), (14, 42), (43, 45)] adding cut for [(2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (21, 36), (21, 30), (22, 51), (22, 30), (36, 37), (27, 32), (29, 32), (31, 35), (31, 39)] Optimize a model with 720 rows, 1275 columns and 129460 nonzeros Presolve time: 0.07s Presolved: 720 rows, 1275 columns, 129460 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s H 0 0 567.0000000 551.80458 2.68% - 0s 0 0 552.01055 0 68 567.00000 552.01055 2.64% - 0s 0 0 552.14186 0 70 567.00000 552.14186 2.62% - 0s 0 0 552.17278 0 72 567.00000 552.17278 2.62% - 0s 0 0 552.22236 0 73 567.00000 552.22236 2.61% - 0s 0 0 552.35037 0 67 567.00000 552.35037 2.58% - 0s 0 0 552.35037 0 71 567.00000 552.35037 2.58% - 0s 0 0 552.38231 0 68 567.00000 552.38231 2.58% - 0s 0 0 552.38231 0 72 567.00000 552.38231 2.58% - 0s 0 0 552.41946 0 74 567.00000 552.41946 2.57% - 0s 0 0 552.41946 0 79 567.00000 552.41946 2.57% - 0s 0 0 552.43394 0 76 567.00000 552.43394 2.57% - 0s 0 0 552.43394 0 79 567.00000 552.43394 2.57% - 1s 0 0 552.44819 0 71 567.00000 552.44819 2.57% - 1s 0 0 552.44819 0 75 567.00000 552.44819 2.57% - 1s 0 0 552.47163 0 80 567.00000 552.47163 2.56% - 1s 0 0 552.47195 0 84 567.00000 552.47195 2.56% - 1s 0 0 552.51013 0 74 567.00000 552.51013 2.56% - 1s 0 0 552.55581 0 76 567.00000 552.55581 2.55% - 1s 0 0 552.56262 0 78 567.00000 552.56262 2.55% - 1s 0 0 552.56930 0 74 567.00000 552.56930 2.55% - 1s 0 0 552.57546 0 79 567.00000 552.57546 2.54% - 1s 0 0 552.58012 0 81 567.00000 552.58012 2.54% - 1s 0 0 552.58988 0 79 567.00000 552.58988 2.54% - 1s 0 0 552.61768 0 77 567.00000 552.61768 2.54% - 1s 0 0 552.62662 0 85 567.00000 552.62662 2.53% - 1s 0 0 552.64456 0 80 567.00000 552.64456 2.53% - 1s 0 0 552.64616 0 78 567.00000 552.64616 2.53% - 1s 0 0 552.70640 0 78 567.00000 552.70640 2.52% - 1s 0 0 552.72714 0 87 567.00000 552.72714 2.52% - 1s 0 2 552.74471 0 87 567.00000 552.74471 2.51% - 2s 615 321 560.46231 7 74 567.00000 556.05769 1.93% 12.5 5s * 980 369 28 566.0000000 557.27600 1.54% 14.2 7s 2367 555 cutoff 23 566.00000 560.00840 1.06% 12.7 10s 5400 360 564.18421 33 47 566.00000 563.07143 0.52% 11.4 15s Cutting planes: Gomory: 9 MIR: 2 Zero half: 8 Explored 6115 nodes (67677 simplex iterations) in 15.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (8, 24), (8, 27), (9, 32), (9, 27), (12, 39), (15, 26), (17, 39), (17, 51), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (25, 26), (24, 44), (4, 37), (4, 29), (29, 32)] Optimize a model with 721 rows, 1275 columns and 129670 nonzeros Presolve time: 0.07s Presolved: 721 rows, 1275 columns, 129670 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.84814 0 70 1672.00000 551.84814 67.0% - 0s 0 0 551.91579 0 71 1672.00000 551.91579 67.0% - 0s 0 0 551.94770 0 66 1672.00000 551.94770 67.0% - 0s 0 0 551.96759 0 73 1672.00000 551.96759 67.0% - 0s 0 0 552.02215 0 74 1672.00000 552.02215 67.0% - 0s 0 0 552.07389 0 77 1672.00000 552.07389 67.0% - 0s 0 0 552.09302 0 75 1672.00000 552.09302 67.0% - 0s 0 0 552.10155 0 75 1672.00000 552.10155 67.0% - 0s 0 0 552.10663 0 79 1672.00000 552.10663 67.0% - 0s 0 0 552.11449 0 80 1672.00000 552.11449 67.0% - 0s H 0 0 713.0000000 552.11449 22.6% - 0s H 0 0 601.0000000 552.11449 8.13% - 1s H 0 0 581.0000000 552.11449 4.97% - 1s 0 0 552.11471 0 78 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 56 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 72 581.00000 552.11471 4.97% - 1s 0 0 552.26359 0 74 581.00000 552.26359 4.95% - 1s 0 0 552.30521 0 78 581.00000 552.30521 4.94% - 1s 0 0 552.42566 0 71 581.00000 552.42566 4.92% - 1s 0 0 552.42579 0 74 581.00000 552.42579 4.92% - 1s 0 0 552.46992 0 68 581.00000 552.46992 4.91% - 1s 0 0 552.47268 0 74 581.00000 552.47268 4.91% - 1s 0 0 552.48328 0 79 581.00000 552.48328 4.91% - 1s 0 0 552.49974 0 74 581.00000 552.49974 4.91% - 1s 0 0 552.50592 0 78 581.00000 552.50592 4.90% - 2s 0 0 552.51242 0 79 581.00000 552.51242 4.90% - 2s 0 0 552.51792 0 83 581.00000 552.51792 4.90% - 2s 0 0 552.54831 0 76 581.00000 552.54831 4.90% - 2s 0 0 552.58716 0 73 581.00000 552.58716 4.89% - 2s 0 0 552.59063 0 76 581.00000 552.59063 4.89% - 2s 0 0 552.59996 0 74 581.00000 552.59996 4.89% - 2s 0 0 552.60398 0 73 581.00000 552.60398 4.89% - 2s 0 0 552.61302 0 77 581.00000 552.61302 4.89% - 2s 0 0 552.66575 0 78 581.00000 552.66575 4.88% - 2s 0 0 552.67501 0 81 581.00000 552.67501 4.88% - 2s 0 0 552.67987 0 77 581.00000 552.67987 4.87% - 2s 0 0 552.68092 0 76 581.00000 552.68092 4.87% - 2s 0 0 552.68406 0 76 581.00000 552.68406 4.87% - 2s 0 0 552.68444 0 79 581.00000 552.68444 4.87% - 2s 0 0 552.68448 0 80 581.00000 552.68448 4.87% - 2s H 0 0 578.0000000 552.68448 4.38% - 3s 0 2 552.68883 0 80 578.00000 552.68883 4.38% - 4s * 61 53 49 572.0000000 553.78394 3.18% 12.0 4s 199 151 559.05950 7 66 572.00000 554.82817 3.00% 11.3 5s * 233 160 32 569.0000000 554.82817 2.49% 12.2 5s * 302 155 18 566.0000000 555.21622 1.91% 12.4 5s 1719 469 561.01852 18 53 566.00000 558.00000 1.41% 12.6 10s 4751 880 564.38393 23 52 566.00000 560.88889 0.90% 11.9 15s 7856 197 564.07692 24 38 566.00000 563.75000 0.40% 11.4 20s Cutting planes: Gomory: 1 MIR: 3 Zero half: 15 Explored 8118 nodes (91710 simplex iterations) in 20.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 722 rows, 1275 columns and 129823 nonzeros Presolve time: 0.07s Presolved: 722 rows, 1275 columns, 129823 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16870 0 70 567.00000 552.16870 2.62% - 0s 0 0 552.21564 0 74 567.00000 552.21564 2.61% - 0s 0 0 552.34532 0 69 567.00000 552.34532 2.58% - 0s 0 0 552.34532 0 73 567.00000 552.34532 2.58% - 0s 0 0 552.44947 0 70 567.00000 552.44947 2.57% - 0s 0 0 552.44947 0 73 567.00000 552.44947 2.57% - 0s 0 0 552.46802 0 70 567.00000 552.46802 2.56% - 0s 0 0 552.47409 0 77 567.00000 552.47409 2.56% - 0s 0 0 552.48205 0 82 567.00000 552.48205 2.56% - 0s 0 0 552.55264 0 76 567.00000 552.55264 2.55% - 0s 0 0 552.55264 0 79 567.00000 552.55264 2.55% - 1s 0 0 552.58513 0 69 567.00000 552.58513 2.54% - 1s 0 0 552.59241 0 77 567.00000 552.59241 2.54% - 1s 0 0 552.60363 0 78 567.00000 552.60363 2.54% - 1s 0 0 552.61427 0 77 567.00000 552.61427 2.54% - 1s 0 2 552.61526 0 77 567.00000 552.61526 2.54% - 2s 647 346 565.88889 34 39 567.00000 556.32000 1.88% 13.4 5s * 1828 492 40 566.0000000 557.50806 1.50% 12.8 7s 3245 838 562.37500 35 34 566.00000 559.40000 1.17% 12.3 10s 6295 898 561.76190 25 48 566.00000 561.50000 0.80% 11.9 15s Cutting planes: Gomory: 2 Zero half: 13 Mod-K: 1 Explored 9028 nodes (101767 simplex iterations) in 19.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (35, 51), (11, 40), (11, 31), (43, 45), (16, 45), (16, 46), (17, 51), (17, 22), (18, 38), (18, 43), (22, 30), (31, 35)] adding cut for [(5, 19), (5, 20), (8, 44), (8, 24), (41, 42), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (25, 44)] Optimize a model with 724 rows, 1275 columns and 130025 nonzeros Presolve time: 0.07s Presolved: 724 rows, 1275 columns, 130025 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 63 568.00000 551.50986 2.90% - 0s 0 0 551.84814 0 70 568.00000 551.84814 2.84% - 0s 0 0 551.94407 0 65 568.00000 551.94407 2.83% - 0s 0 0 552.16870 0 70 568.00000 552.16870 2.79% - 0s 0 0 552.21178 0 75 568.00000 552.21178 2.78% - 0s 0 0 552.28831 0 79 568.00000 552.28831 2.77% - 0s 0 0 552.31762 0 76 568.00000 552.31762 2.76% - 0s 0 0 552.34680 0 79 568.00000 552.34680 2.76% - 0s 0 0 552.34680 0 78 568.00000 552.34680 2.76% - 1s 0 2 552.37633 0 78 568.00000 552.37633 2.75% - 1s H 663 298 567.0000000 556.44915 1.86% 13.3 4s 703 302 556.44915 18 57 567.00000 556.44915 1.86% 13.8 5s H 842 308 566.0000000 556.44915 1.69% 13.8 5s 3626 498 cutoff 28 566.00000 561.50000 0.80% 12.0 10s Cutting planes: Gomory: 3 Zero half: 10 Explored 5626 nodes (62895 simplex iterations) in 13.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 46), (34, 40), (35, 51), (36, 37), (6, 16), (8, 49), (8, 27), (9, 32), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (29, 32), (31, 35)] Optimize a model with 725 rows, 1275 columns and 130235 nonzeros Presolve time: 0.07s Presolved: 725 rows, 1275 columns, 130235 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 68 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 72 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 68 572.00000 552.28142 3.45% - 0s 0 0 552.28861 0 76 572.00000 552.28861 3.45% - 0s 0 0 552.30453 0 82 572.00000 552.30453 3.44% - 1s 0 0 552.39999 0 68 572.00000 552.39999 3.43% - 1s 0 0 552.40049 0 71 572.00000 552.40049 3.43% - 1s 0 0 552.43763 0 83 572.00000 552.43763 3.42% - 1s 0 0 552.46792 0 78 572.00000 552.46792 3.41% - 1s 0 0 552.48383 0 77 572.00000 552.48383 3.41% - 1s 0 0 552.48569 0 81 572.00000 552.48569 3.41% - 1s 0 0 552.49255 0 79 572.00000 552.49255 3.41% - 1s 0 0 552.54337 0 75 572.00000 552.54337 3.40% - 1s 0 0 552.59829 0 72 572.00000 552.59829 3.39% - 1s 0 0 552.60205 0 78 572.00000 552.60205 3.39% - 1s H 0 0 570.0000000 552.60205 3.05% - 1s 0 2 552.64395 0 78 570.00000 552.64395 3.04% - 2s H 54 37 567.0000000 554.33227 2.23% 13.4 2s * 335 155 27 566.0000000 555.34091 1.88% 12.7 3s 609 272 563.50000 28 77 566.00000 556.50000 1.68% 12.6 5s 2975 556 563.50000 32 38 566.00000 560.76923 0.92% 12.2 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 5348 nodes (60117 simplex iterations) in 14.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 17), (2, 23), (35, 51), (4, 37), (4, 29), (9, 23), (9, 27), (10, 17), (10, 51), (21, 36), (21, 30), (22, 35), (22, 30), (36, 37), (27, 32), (29, 32)] Optimize a model with 726 rows, 1275 columns and 130371 nonzeros Presolve time: 0.07s Presolved: 726 rows, 1275 columns, 130371 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 551.97037 0 66 569.00000 551.97037 2.99% - 0s 0 0 552.14105 0 67 569.00000 552.14105 2.96% - 0s 0 0 552.18750 0 70 569.00000 552.18750 2.95% - 0s 0 0 552.21674 0 71 569.00000 552.21674 2.95% - 0s 0 0 552.25679 0 74 569.00000 552.25679 2.94% - 0s 0 0 552.28292 0 74 569.00000 552.28292 2.94% - 0s 0 0 552.36590 0 67 569.00000 552.36590 2.92% - 0s 0 0 552.36590 0 71 569.00000 552.36590 2.92% - 0s 0 0 552.40035 0 69 569.00000 552.40035 2.92% - 0s 0 0 552.40035 0 73 569.00000 552.40035 2.92% - 0s 0 0 552.42569 0 76 569.00000 552.42569 2.91% - 0s 0 0 552.44227 0 75 569.00000 552.44227 2.91% - 1s 0 0 552.44669 0 80 569.00000 552.44669 2.91% - 1s 0 0 552.45169 0 78 569.00000 552.45169 2.91% - 1s 0 0 552.45945 0 75 569.00000 552.45945 2.91% - 1s 0 0 552.46649 0 81 569.00000 552.46649 2.91% - 1s 0 0 552.49027 0 77 569.00000 552.49027 2.90% - 1s 0 0 552.49761 0 78 569.00000 552.49761 2.90% - 1s 0 0 552.49892 0 82 569.00000 552.49892 2.90% - 1s 0 0 552.54291 0 82 569.00000 552.54291 2.89% - 1s 0 0 552.57901 0 80 569.00000 552.57901 2.89% - 1s 0 2 552.59465 0 80 569.00000 552.59465 2.88% - 2s * 215 142 36 568.0000000 554.77070 2.33% 12.7 2s * 473 263 23 567.0000000 555.90000 1.96% 12.6 3s 609 337 564.00000 23 80 567.00000 556.72727 1.81% 12.2 5s * 928 363 28 566.0000000 556.72727 1.64% 13.2 6s 2973 473 564.66667 19 36 566.00000 561.00000 0.88% 12.2 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 5486 nodes (59754 simplex iterations) in 13.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (38, 45), (39, 50), (41, 42), (10, 50), (10, 31), (11, 40), (11, 31), (15, 26), (16, 38), (16, 46), (20, 43), (20, 41), (14, 26), (14, 42)] adding cut for [(2, 23), (3, 21), (3, 30), (36, 37), (12, 17), (17, 51), (35, 51), (21, 36), (22, 35), (22, 30), (23, 29), (4, 37), (4, 29)] Optimize a model with 728 rows, 1275 columns and 130615 nonzeros Presolve time: 0.07s Presolved: 728 rows, 1275 columns, 130615 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 69 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 73 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 69 572.00000 552.28142 3.45% - 1s 0 0 552.28861 0 77 572.00000 552.28861 3.45% - 1s 0 0 552.30453 0 82 572.00000 552.30453 3.44% - 1s 0 0 552.39999 0 68 572.00000 552.39999 3.43% - 1s 0 0 552.40049 0 71 572.00000 552.40049 3.43% - 1s 0 0 552.40740 0 75 572.00000 552.40740 3.43% - 1s 0 0 552.42923 0 80 572.00000 552.42923 3.42% - 1s 0 0 552.46566 0 78 572.00000 552.46566 3.42% - 1s 0 0 552.47078 0 80 572.00000 552.47078 3.41% - 1s 0 0 552.50321 0 75 572.00000 552.50321 3.41% - 1s 0 0 552.51816 0 79 572.00000 552.51816 3.41% - 1s 0 0 552.52086 0 82 572.00000 552.52086 3.41% - 1s 0 0 552.52409 0 78 572.00000 552.52409 3.40% - 1s 0 0 552.52864 0 83 572.00000 552.52864 3.40% - 1s 0 0 552.55066 0 81 572.00000 552.55066 3.40% - 1s 0 0 552.64649 0 75 572.00000 552.64649 3.38% - 1s 0 0 552.66834 0 77 572.00000 552.66834 3.38% - 1s 0 0 552.69256 0 84 572.00000 552.69256 3.38% - 1s 0 0 552.72388 0 82 572.00000 552.72388 3.37% - 1s 0 0 552.72865 0 81 572.00000 552.72865 3.37% - 1s 0 0 552.73252 0 88 572.00000 552.73252 3.37% - 1s 0 0 552.75898 0 80 572.00000 552.75898 3.36% - 1s 0 0 552.79719 0 80 572.00000 552.79719 3.36% - 1s 0 0 552.81994 0 78 572.00000 552.81994 3.35% - 1s 0 0 552.83049 0 81 572.00000 552.83049 3.35% - 1s 0 0 552.83502 0 79 572.00000 552.83502 3.35% - 1s 0 0 552.84014 0 81 572.00000 552.84014 3.35% - 1s 0 0 552.85209 0 86 572.00000 552.85209 3.35% - 1s 0 0 552.85742 0 88 572.00000 552.85742 3.35% - 1s 0 0 552.89949 0 85 572.00000 552.89949 3.34% - 2s 0 0 552.91343 0 79 572.00000 552.91343 3.34% - 2s 0 0 552.92154 0 82 572.00000 552.92154 3.34% - 2s 0 0 552.92352 0 88 572.00000 552.92352 3.34% - 2s 0 0 552.92821 0 83 572.00000 552.92821 3.33% - 2s 0 0 552.92838 0 86 572.00000 552.92838 3.33% - 2s 0 0 552.93003 0 89 572.00000 552.93003 3.33% - 2s 0 0 552.93939 0 82 572.00000 552.93939 3.33% - 2s 0 0 552.93939 0 85 572.00000 552.93939 3.33% - 2s 0 0 552.94120 0 82 572.00000 552.94120 3.33% - 2s 0 0 552.94186 0 82 572.00000 552.94186 3.33% - 2s 0 0 552.94186 0 85 572.00000 552.94186 3.33% - 2s 0 2 552.98355 0 85 572.00000 552.98355 3.32% - 3s * 111 84 42 571.0000000 554.42857 2.90% 13.2 4s * 156 97 43 567.0000000 554.74098 2.16% 11.8 4s 414 239 563.78205 18 48 567.00000 555.66228 2.00% 13.3 5s 1446 504 565.19231 29 50 567.00000 557.29032 1.71% 13.6 10s * 2734 888 34 566.0000000 558.65079 1.30% 12.5 12s 4253 1225 565.00000 28 28 566.00000 559.75904 1.10% 12.1 15s 7367 1364 562.58333 29 43 566.00000 561.33333 0.82% 11.6 20s 10905 861 cutoff 33 566.00000 563.00000 0.53% 11.0 25s Cutting planes: Gomory: 7 MIR: 2 Zero half: 9 Explored 12596 nodes (132692 simplex iterations) in 26.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 33), (3, 30), (38, 45), (41, 43), (11, 40), (11, 31), (16, 38), (16, 46), (43, 45), (20, 41), (20, 42), (14, 19), (14, 42), (22, 35), (22, 30), (31, 35)] Optimize a model with 729 rows, 1275 columns and 130786 nonzeros Presolve time: 0.07s Presolved: 729 rows, 1275 columns, 130786 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.84814 0 70 1672.00000 551.84814 67.0% - 0s 0 0 551.91579 0 71 1672.00000 551.91579 67.0% - 0s 0 0 551.94770 0 66 1672.00000 551.94770 67.0% - 0s 0 0 551.96759 0 73 1672.00000 551.96759 67.0% - 0s 0 0 552.02215 0 74 1672.00000 552.02215 67.0% - 0s 0 0 552.07389 0 77 1672.00000 552.07389 67.0% - 0s 0 0 552.09302 0 75 1672.00000 552.09302 67.0% - 0s 0 0 552.10155 0 75 1672.00000 552.10155 67.0% - 0s 0 0 552.10663 0 79 1672.00000 552.10663 67.0% - 0s 0 0 552.11449 0 80 1672.00000 552.11449 67.0% - 0s H 0 0 769.0000000 552.11449 28.2% - 0s H 0 0 601.0000000 552.11449 8.13% - 0s H 0 0 581.0000000 552.11449 4.97% - 1s 0 0 552.11471 0 78 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 56 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 72 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 75 581.00000 552.11471 4.97% - 1s 0 0 552.26007 0 74 581.00000 552.26007 4.95% - 1s 0 0 552.36955 0 71 581.00000 552.36955 4.93% - 1s 0 0 552.36955 0 75 581.00000 552.36955 4.93% - 1s 0 0 552.40473 0 73 581.00000 552.40473 4.92% - 1s 0 0 552.40639 0 75 581.00000 552.40639 4.92% - 1s 0 0 552.42069 0 76 581.00000 552.42069 4.92% - 1s 0 0 552.42672 0 79 581.00000 552.42672 4.92% - 2s 0 0 552.46087 0 75 581.00000 552.46087 4.91% - 2s 0 0 552.52982 0 77 581.00000 552.52982 4.90% - 2s 0 0 552.61142 0 75 581.00000 552.61142 4.89% - 2s 0 0 552.62995 0 73 581.00000 552.62995 4.88% - 2s 0 0 552.62995 0 77 581.00000 552.62995 4.88% - 2s 0 0 552.64480 0 80 581.00000 552.64480 4.88% - 2s 0 0 552.66190 0 84 581.00000 552.66190 4.88% - 2s 0 0 552.70102 0 80 581.00000 552.70102 4.87% - 2s 0 0 552.70453 0 81 581.00000 552.70453 4.87% - 2s 0 0 552.72498 0 77 581.00000 552.72498 4.87% - 2s 0 0 552.72498 0 80 581.00000 552.72498 4.87% - 2s 0 0 552.73097 0 78 581.00000 552.73097 4.87% - 2s 0 0 552.73166 0 83 581.00000 552.73166 4.87% - 2s 0 0 552.74188 0 79 581.00000 552.74188 4.86% - 2s 0 0 552.74233 0 83 581.00000 552.74233 4.86% - 2s 0 0 552.75235 0 82 581.00000 552.75235 4.86% - 2s 0 0 552.75301 0 86 581.00000 552.75301 4.86% - 2s 0 0 552.75942 0 82 581.00000 552.75942 4.86% - 3s 0 0 552.75942 0 85 581.00000 552.75942 4.86% - 3s 0 0 552.77220 0 84 581.00000 552.77220 4.86% - 3s 0 0 552.77431 0 88 581.00000 552.77431 4.86% - 3s 0 0 552.77460 0 84 581.00000 552.77460 4.86% - 3s 0 0 552.77460 0 87 581.00000 552.77460 4.86% - 3s H 0 0 572.0000000 552.77460 3.36% - 4s 0 2 552.77740 0 87 572.00000 552.77740 3.36% - 4s 40 37 568.20000 32 29 572.00000 553.68268 3.20% 14.5 5s * 45 36 33 571.0000000 553.68268 3.03% 14.0 5s * 97 73 46 570.0000000 554.00358 2.81% 11.3 5s * 99 71 47 569.0000000 554.00358 2.64% 11.2 5s * 137 91 29 568.0000000 554.47525 2.38% 11.7 5s * 254 158 23 567.0000000 555.01844 2.11% 12.5 5s * 403 179 21 566.0000000 555.76254 1.81% 12.4 5s 964 320 563.94118 30 49 566.00000 556.92793 1.60% 13.8 10s 4207 503 563.90909 29 35 566.00000 562.22222 0.67% 11.8 15s Cutting planes: Gomory: 7 MIR: 3 Zero half: 8 Explored 5679 nodes (62718 simplex iterations) in 17.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (3, 30), (5, 19), (5, 18), (38, 45), (11, 40), (11, 31), (16, 45), (16, 46), (17, 51), (17, 22), (18, 38), (35, 51), (22, 30), (31, 35)] adding cut for [(8, 44), (8, 24), (41, 42), (43, 48), (14, 42), (14, 26), (15, 25), (15, 26), (20, 41), (20, 43), (25, 44)] Optimize a model with 731 rows, 1275 columns and 130988 nonzeros Presolve time: 0.07s Presolved: 731 rows, 1275 columns, 130988 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 69 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 73 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 68 572.00000 552.28142 3.45% - 0s 0 0 552.28861 0 76 572.00000 552.28861 3.45% - 0s 0 0 552.30320 0 80 572.00000 552.30320 3.44% - 1s 0 0 552.40002 0 68 572.00000 552.40002 3.43% - 1s 0 0 552.40053 0 71 572.00000 552.40053 3.43% - 1s 0 0 552.43321 0 77 572.00000 552.43321 3.42% - 1s 0 0 552.44945 0 74 572.00000 552.44945 3.42% - 1s 0 0 552.45469 0 80 572.00000 552.45469 3.42% - 1s 0 0 552.47886 0 81 572.00000 552.47886 3.41% - 1s 0 0 552.48723 0 75 572.00000 552.48723 3.41% - 1s 0 0 552.48862 0 80 572.00000 552.48862 3.41% - 1s 0 0 552.49507 0 77 572.00000 552.49507 3.41% - 1s 0 0 552.49773 0 78 572.00000 552.49773 3.41% - 1s 0 0 552.49876 0 80 572.00000 552.49876 3.41% - 1s 0 0 552.54983 0 76 572.00000 552.54983 3.40% - 1s 0 0 552.54983 0 76 572.00000 552.54983 3.40% - 1s 0 2 552.57398 0 76 572.00000 552.57398 3.40% - 2s H 27 27 571.0000000 553.98619 2.98% 15.7 2s H 94 59 567.0000000 554.30212 2.24% 13.2 2s H 530 249 566.0000000 556.60920 1.66% 12.8 3s 706 322 563.26190 22 76 566.00000 557.00000 1.59% 13.0 5s 2823 628 563.62963 22 49 566.00000 559.84615 1.09% 12.2 10s 6023 338 cutoff 31 566.00000 563.00000 0.53% 11.3 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 6752 nodes (74006 simplex iterations) in 15.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (5, 18), (5, 42), (7, 24), (8, 27), (8, 44), (9, 27), (9, 32), (10, 31), (10, 50), (11, 40), (11, 50), (16, 45), (16, 46), (17, 22), (17, 51), (18, 38), (20, 41), (20, 42), (21, 36), (22, 30), (24, 25), (25, 44), (29, 32), (31, 35), (34, 40), (34, 46), (35, 51), (36, 37), (41, 43), (43, 45)] Optimize a model with 732 rows, 1275 columns and 131583 nonzeros Presolve time: 0.07s Presolved: 732 rows, 1275 columns, 131583 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.84814 0 70 1672.00000 551.84814 67.0% - 0s 0 0 551.91579 0 71 1672.00000 551.91579 67.0% - 0s 0 0 551.94770 0 66 1672.00000 551.94770 67.0% - 0s 0 0 551.96759 0 73 1672.00000 551.96759 67.0% - 0s 0 0 552.02215 0 74 1672.00000 552.02215 67.0% - 0s 0 0 552.07389 0 77 1672.00000 552.07389 67.0% - 0s 0 0 552.09302 0 75 1672.00000 552.09302 67.0% - 0s 0 0 552.10155 0 75 1672.00000 552.10155 67.0% - 0s 0 0 552.10663 0 79 1672.00000 552.10663 67.0% - 0s 0 0 552.11449 0 80 1672.00000 552.11449 67.0% - 0s H 0 0 773.0000000 552.11449 28.6% - 0s H 0 0 601.0000000 552.11449 8.13% - 1s H 0 0 581.0000000 552.11449 4.97% - 1s 0 0 552.11471 0 78 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 56 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 72 581.00000 552.11471 4.97% - 1s 0 0 552.11471 0 75 581.00000 552.11471 4.97% - 1s 0 0 552.26007 0 74 581.00000 552.26007 4.95% - 1s 0 0 552.36955 0 71 581.00000 552.36955 4.93% - 1s 0 0 552.36955 0 75 581.00000 552.36955 4.93% - 1s 0 0 552.40473 0 73 581.00000 552.40473 4.92% - 1s 0 0 552.40639 0 75 581.00000 552.40639 4.92% - 1s 0 0 552.42069 0 76 581.00000 552.42069 4.92% - 1s 0 0 552.42672 0 79 581.00000 552.42672 4.92% - 2s 0 0 552.46087 0 75 581.00000 552.46087 4.91% - 2s 0 0 552.52982 0 77 581.00000 552.52982 4.90% - 2s 0 0 552.61142 0 75 581.00000 552.61142 4.89% - 2s 0 0 552.62995 0 73 581.00000 552.62995 4.88% - 2s 0 0 552.62995 0 77 581.00000 552.62995 4.88% - 2s 0 0 552.64480 0 80 581.00000 552.64480 4.88% - 2s 0 0 552.66190 0 84 581.00000 552.66190 4.88% - 2s 0 0 552.70102 0 80 581.00000 552.70102 4.87% - 2s 0 0 552.70453 0 81 581.00000 552.70453 4.87% - 2s 0 0 552.72498 0 77 581.00000 552.72498 4.87% - 2s 0 0 552.72498 0 80 581.00000 552.72498 4.87% - 2s 0 0 552.73097 0 78 581.00000 552.73097 4.87% - 2s 0 0 552.73166 0 83 581.00000 552.73166 4.87% - 2s 0 0 552.74188 0 79 581.00000 552.74188 4.86% - 2s 0 0 552.74233 0 83 581.00000 552.74233 4.86% - 2s 0 0 552.75235 0 82 581.00000 552.75235 4.86% - 2s 0 0 552.75301 0 86 581.00000 552.75301 4.86% - 2s 0 0 552.75942 0 82 581.00000 552.75942 4.86% - 3s 0 0 552.75942 0 85 581.00000 552.75942 4.86% - 3s 0 0 552.77684 0 83 581.00000 552.77684 4.86% - 3s 0 0 552.77957 0 85 581.00000 552.77957 4.86% - 3s 0 0 552.77961 0 89 581.00000 552.77961 4.86% - 3s H 0 0 576.0000000 552.77961 4.03% - 4s H 0 0 573.0000000 552.77961 3.53% - 4s 0 2 552.78652 0 89 573.00000 552.78652 3.53% - 4s 1 3 553.21723 1 71 573.00000 553.21723 3.45% 33.0 5s * 67 43 57 572.0000000 553.95082 3.16% 11.3 5s * 117 72 43 568.0000000 554.00229 2.46% 11.9 5s 673 359 563.51786 42 55 568.00000 556.45455 2.03% 13.9 10s H 754 346 567.0000000 556.45455 1.86% 14.2 10s * 1126 347 33 566.0000000 557.05357 1.58% 13.8 11s 3265 572 cutoff 24 566.00000 560.87898 0.90% 12.8 15s Cutting planes: Gomory: 8 MIR: 2 Zero half: 9 Explored 5665 nodes (64959 simplex iterations) in 18.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(35, 51), (36, 37), (39, 50), (9, 49), (9, 27), (10, 50), (10, 31), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 11), (41, 43), (11, 40), (16, 45), (16, 46), (20, 41), (20, 42), (14, 42), (14, 26)] Optimize a model with 734 rows, 1275 columns and 131797 nonzeros Presolve time: 0.07s Presolved: 734 rows, 1275 columns, 131797 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 69 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 73 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 69 572.00000 552.28142 3.45% - 0s 0 0 552.28861 0 77 572.00000 552.28861 3.45% - 0s 0 0 552.30453 0 82 572.00000 552.30453 3.44% - 1s 0 0 552.39999 0 68 572.00000 552.39999 3.43% - 1s 0 0 552.40049 0 71 572.00000 552.40049 3.43% - 1s 0 0 552.43216 0 79 572.00000 552.43216 3.42% - 1s 0 0 552.43769 0 81 572.00000 552.43769 3.42% - 1s 0 0 552.44286 0 79 572.00000 552.44286 3.42% - 1s 0 0 552.44389 0 81 572.00000 552.44389 3.42% - 1s 0 0 552.44833 0 81 572.00000 552.44833 3.42% - 1s 0 0 552.47019 0 69 572.00000 552.47019 3.41% - 1s 0 0 552.47199 0 76 572.00000 552.47199 3.41% - 1s 0 0 552.47837 0 77 572.00000 552.47837 3.41% - 1s 0 0 552.48713 0 75 572.00000 552.48713 3.41% - 1s 0 0 552.49255 0 78 572.00000 552.49255 3.41% - 1s 0 0 552.49810 0 79 572.00000 552.49810 3.41% - 1s 0 0 552.49973 0 80 572.00000 552.49973 3.41% - 1s 0 0 552.51059 0 76 572.00000 552.51059 3.41% - 1s H 0 0 570.0000000 552.51059 3.07% - 1s 0 0 552.51743 0 81 570.00000 552.51743 3.07% - 1s 0 0 552.54238 0 79 570.00000 552.54238 3.06% - 1s 0 0 552.54463 0 85 570.00000 552.54463 3.06% - 1s 0 0 552.54590 0 84 570.00000 552.54590 3.06% - 2s 0 0 552.54752 0 85 570.00000 552.54752 3.06% - 2s 0 0 552.55453 0 81 570.00000 552.55453 3.06% - 2s 0 0 552.66478 0 82 570.00000 552.66478 3.04% - 2s 0 0 552.71461 0 81 570.00000 552.71461 3.03% - 2s 0 0 552.71770 0 81 570.00000 552.71770 3.03% - 2s 0 0 552.73453 0 81 570.00000 552.73453 3.03% - 2s 0 0 552.74074 0 85 570.00000 552.74074 3.03% - 2s 0 0 552.75194 0 82 570.00000 552.75194 3.03% - 2s 0 0 552.75214 0 85 570.00000 552.75214 3.03% - 2s 0 0 552.76947 0 86 570.00000 552.76947 3.02% - 2s 0 0 552.78172 0 85 570.00000 552.78172 3.02% - 2s 0 0 552.80215 0 82 570.00000 552.80215 3.02% - 2s 0 0 552.80827 0 89 570.00000 552.80827 3.02% - 2s 0 0 552.81959 0 87 570.00000 552.81959 3.01% - 2s 0 0 552.82001 0 88 570.00000 552.82001 3.01% - 2s 0 0 552.82001 0 88 570.00000 552.82001 3.01% - 3s H 0 0 569.0000000 552.82001 2.84% - 3s 0 2 552.82782 0 88 569.00000 552.82782 2.84% - 3s * 95 70 33 567.0000000 554.03894 2.29% 12.5 4s 522 289 560.00000 12 48 567.00000 555.61905 2.01% 12.2 5s 1382 476 563.50000 27 49 567.00000 557.36842 1.70% 12.9 10s * 1783 517 26 566.0000000 558.03757 1.41% 12.9 10s 3868 832 565.00000 26 14 566.00000 560.47753 0.98% 12.4 15s 6675 525 562.70000 36 53 566.00000 562.70000 0.58% 11.9 20s Cutting planes: Gomory: 8 MIR: 2 Zero half: 7 Mod-K: 1 Explored 7792 nodes (89019 simplex iterations) in 21.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (43, 45), (6, 39), (41, 43), (10, 39), (10, 31), (11, 40), (11, 50), (16, 45), (16, 46), (20, 41), (20, 42), (14, 26), (14, 42), (31, 50)] adding cut for [(35, 51), (36, 37), (9, 49), (9, 27), (12, 17), (17, 51), (3, 21), (3, 30), (21, 36), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 736 rows, 1275 columns and 132053 nonzeros Presolve time: 0.07s Presolved: 736 rows, 1275 columns, 132053 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 63 568.00000 551.50986 2.90% - 0s 0 0 551.84814 0 70 568.00000 551.84814 2.84% - 0s 0 0 551.94407 0 65 568.00000 551.94407 2.83% - 0s 0 0 552.16870 0 70 568.00000 552.16870 2.79% - 0s 0 0 552.21178 0 75 568.00000 552.21178 2.78% - 0s 0 0 552.28831 0 79 568.00000 552.28831 2.77% - 0s 0 0 552.31878 0 75 568.00000 552.31878 2.76% - 0s 0 0 552.34351 0 75 568.00000 552.34351 2.76% - 0s 0 0 552.38640 0 82 568.00000 552.38640 2.75% - 0s 0 0 552.47897 0 72 568.00000 552.47897 2.73% - 0s 0 0 552.47897 0 76 568.00000 552.47897 2.73% - 0s 0 0 552.51688 0 71 568.00000 552.51688 2.73% - 0s 0 0 552.52066 0 78 568.00000 552.52066 2.73% - 0s 0 0 552.57194 0 76 568.00000 552.57194 2.72% - 1s 0 0 552.57768 0 78 568.00000 552.57768 2.72% - 1s 0 0 552.58906 0 82 568.00000 552.58906 2.71% - 1s 0 2 552.60717 0 82 568.00000 552.60717 2.71% - 1s * 78 55 34 567.0000000 554.35625 2.23% 11.2 2s H 600 302 566.0000000 556.85714 1.62% 12.4 3s 634 324 561.66667 28 33 566.00000 556.85714 1.62% 13.1 5s 3098 613 cutoff 30 566.00000 560.63636 0.95% 12.4 10s 6064 194 563.60000 32 42 566.00000 563.60000 0.42% 11.4 15s Cutting planes: Gomory: 1 Zero half: 13 Explored 6364 nodes (71730 simplex iterations) in 15.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (5, 18), (5, 19), (10, 51), (10, 50), (11, 40), (11, 31), (16, 38), (16, 46), (18, 38), (22, 51), (22, 35), (6, 50), (31, 35)] adding cut for [(2, 33), (2, 23), (3, 17), (3, 30), (4, 37), (4, 29), (17, 39), (21, 36), (21, 30), (23, 32), (36, 37), (29, 32)] Optimize a model with 738 rows, 1275 columns and 132251 nonzeros Presolve time: 0.07s Presolved: 738 rows, 1275 columns, 132251 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 58 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.80458 0 63 569.00000 551.80458 3.02% - 0s 0 0 551.83555 0 71 569.00000 551.83555 3.02% - 0s 0 0 551.93573 0 71 569.00000 551.93573 3.00% - 0s 0 0 552.00802 0 74 569.00000 552.00802 2.99% - 0s 0 0 552.23559 0 71 569.00000 552.23559 2.95% - 0s 0 0 552.31031 0 66 569.00000 552.31031 2.93% - 0s 0 0 552.32144 0 71 569.00000 552.32144 2.93% - 0s 0 0 552.37234 0 76 569.00000 552.37234 2.92% - 0s 0 0 552.39597 0 73 569.00000 552.39597 2.92% - 0s 0 0 552.39597 0 76 569.00000 552.39597 2.92% - 0s 0 0 552.40524 0 72 569.00000 552.40524 2.92% - 0s 0 0 552.41281 0 75 569.00000 552.41281 2.92% - 0s 0 0 552.42504 0 83 569.00000 552.42504 2.91% - 1s 0 0 552.43482 0 75 569.00000 552.43482 2.91% - 1s 0 0 552.45760 0 72 569.00000 552.45760 2.91% - 1s 0 0 552.47133 0 77 569.00000 552.47133 2.90% - 1s 0 0 552.50803 0 77 569.00000 552.50803 2.90% - 1s 0 0 552.53798 0 76 569.00000 552.53798 2.89% - 1s 0 0 552.54606 0 79 569.00000 552.54606 2.89% - 1s 0 0 552.55014 0 79 569.00000 552.55014 2.89% - 1s 0 0 552.55014 0 78 569.00000 552.55014 2.89% - 1s 0 2 552.55976 0 78 569.00000 552.55976 2.89% - 2s H 95 65 568.0000000 554.26316 2.42% 12.7 2s * 160 106 30 566.0000000 554.31590 2.06% 12.7 2s 637 351 564.40000 24 31 566.00000 556.68852 1.65% 13.0 5s 3251 657 563.50000 31 22 566.00000 560.54545 0.96% 12.1 10s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 6338 nodes (70718 simplex iterations) in 14.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 50), (16, 18), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (5, 48), (5, 18), (29, 32), (31, 35), (31, 50)] Optimize a model with 739 rows, 1275 columns and 132461 nonzeros Presolve time: 0.07s Presolved: 739 rows, 1275 columns, 132461 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 551.97037 0 66 571.00000 551.97037 3.33% - 0s 0 0 552.13943 0 68 571.00000 552.13943 3.30% - 0s 0 0 552.16110 0 68 571.00000 552.16110 3.30% - 0s 0 0 552.18259 0 73 571.00000 552.18259 3.30% - 0s 0 0 552.24399 0 76 571.00000 552.24399 3.28% - 0s 0 0 552.36986 0 68 571.00000 552.36986 3.26% - 0s 0 0 552.39906 0 69 571.00000 552.39906 3.26% - 0s 0 0 552.41224 0 74 571.00000 552.41224 3.26% - 0s 0 0 552.41474 0 75 571.00000 552.41474 3.25% - 0s 0 0 552.42748 0 68 571.00000 552.42748 3.25% - 0s 0 0 552.43691 0 71 571.00000 552.43691 3.25% - 0s 0 0 552.44782 0 75 571.00000 552.44782 3.25% - 0s 0 0 552.45416 0 77 571.00000 552.45416 3.25% - 1s 0 0 552.46398 0 76 571.00000 552.46398 3.25% - 1s 0 0 552.47382 0 81 571.00000 552.47382 3.24% - 1s 0 0 552.47661 0 80 571.00000 552.47661 3.24% - 1s 0 0 552.48624 0 81 571.00000 552.48624 3.24% - 1s 0 0 552.49072 0 81 571.00000 552.49072 3.24% - 1s 0 0 552.51093 0 77 571.00000 552.51093 3.24% - 1s 0 0 552.51418 0 78 571.00000 552.51418 3.24% - 1s 0 0 552.59614 0 78 571.00000 552.59614 3.22% - 1s 0 0 552.61121 0 79 571.00000 552.61121 3.22% - 1s 0 0 552.62749 0 82 571.00000 552.62749 3.22% - 1s 0 0 552.63673 0 82 571.00000 552.63673 3.22% - 1s 0 0 552.64538 0 85 571.00000 552.64538 3.21% - 1s 0 0 552.64812 0 83 571.00000 552.64812 3.21% - 1s 0 0 552.66170 0 86 571.00000 552.66170 3.21% - 1s 0 0 552.66641 0 84 571.00000 552.66641 3.21% - 1s 0 0 552.67416 0 89 571.00000 552.67416 3.21% - 1s H 0 0 569.0000000 552.67416 2.87% - 2s 0 2 552.68217 0 89 569.00000 552.68217 2.87% - 2s * 114 78 29 568.0000000 554.45860 2.38% 13.9 3s H 487 268 567.0000000 556.10221 1.92% 13.0 3s 608 341 561.66534 11 87 567.00000 556.48148 1.86% 13.0 5s * 1521 400 37 566.0000000 557.40000 1.52% 13.7 7s 2622 604 cutoff 26 566.00000 559.27208 1.19% 13.3 10s 5516 669 564.62500 26 45 566.00000 561.75000 0.75% 12.5 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 7368 nodes (87493 simplex iterations) in 17.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 17), (3, 23), (5, 14), (41, 43), (10, 39), (10, 31), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 45), (17, 39), (20, 41), (20, 42), (14, 42), (43, 45)] adding cut for [(35, 50), (35, 51), (36, 37), (6, 50), (8, 44), (8, 27), (9, 32), (9, 27), (21, 36), (21, 30), (22, 51), (22, 30), (25, 44), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] Optimize a model with 741 rows, 1275 columns and 132822 nonzeros Presolve time: 0.07s Presolved: 741 rows, 1275 columns, 132822 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.96668 0 67 572.00000 551.96668 3.50% - 0s 0 0 552.15470 0 71 572.00000 552.15470 3.47% - 0s 0 0 552.17556 0 74 572.00000 552.17556 3.47% - 0s 0 0 552.23564 0 66 572.00000 552.23564 3.46% - 0s 0 0 552.23564 0 70 572.00000 552.23564 3.46% - 0s 0 0 552.24407 0 68 572.00000 552.24407 3.45% - 0s 0 0 552.24407 0 72 572.00000 552.24407 3.45% - 0s 0 0 552.28142 0 68 572.00000 552.28142 3.45% - 0s 0 0 552.28861 0 76 572.00000 552.28861 3.45% - 1s 0 0 552.30453 0 82 572.00000 552.30453 3.44% - 1s 0 0 552.39999 0 68 572.00000 552.39999 3.43% - 1s 0 0 552.40049 0 71 572.00000 552.40049 3.43% - 1s 0 0 552.43216 0 78 572.00000 552.43216 3.42% - 1s 0 0 552.43889 0 80 572.00000 552.43889 3.42% - 1s 0 0 552.46635 0 67 572.00000 552.46635 3.41% - 1s 0 0 552.47668 0 73 572.00000 552.47668 3.41% - 1s 0 0 552.47957 0 79 572.00000 552.47957 3.41% - 1s 0 0 552.47957 0 79 572.00000 552.47957 3.41% - 1s 0 2 552.48325 0 79 572.00000 552.48325 3.41% - 2s * 51 37 46 571.0000000 553.55775 3.05% 12.2 2s * 84 56 26 567.0000000 553.98115 2.30% 12.6 2s 609 317 561.38462 14 79 567.00000 556.39583 1.87% 12.3 5s * 1169 362 32 566.0000000 556.75000 1.63% 13.1 6s 2870 596 560.89286 27 51 566.00000 559.55172 1.14% 12.6 10s 5954 589 562.80000 26 37 566.00000 562.15447 0.68% 11.6 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 7584 nodes (83058 simplex iterations) in 17.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (6, 16), (39, 50), (10, 17), (10, 50), (11, 40), (11, 31), (12, 39), (16, 46), (17, 51), (31, 35)] adding cut for [(2, 23), (3, 22), (3, 23), (36, 37), (9, 27), (21, 36), (21, 30), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 743 rows, 1275 columns and 132991 nonzeros Presolve time: 0.07s Presolved: 743 rows, 1275 columns, 132991 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 551.95571 0 68 571.00000 551.95571 3.34% - 0s 0 0 552.15659 0 68 571.00000 552.15659 3.30% - 0s 0 0 552.19517 0 69 571.00000 552.19517 3.29% - 0s 0 0 552.23598 0 71 571.00000 552.23598 3.29% - 0s 0 0 552.32833 0 66 571.00000 552.32833 3.27% - 0s 0 0 552.33835 0 71 571.00000 552.33835 3.27% - 0s 0 0 552.40779 0 68 571.00000 552.40779 3.26% - 0s 0 0 552.42883 0 69 571.00000 552.42883 3.25% - 0s 0 0 552.45588 0 76 571.00000 552.45588 3.25% - 0s 0 0 552.48850 0 76 571.00000 552.48850 3.24% - 0s 0 0 552.50437 0 75 571.00000 552.50437 3.24% - 0s 0 0 552.50900 0 78 571.00000 552.50900 3.24% - 1s 0 0 552.51886 0 79 571.00000 552.51886 3.24% - 1s 0 0 552.52411 0 77 571.00000 552.52411 3.24% - 1s 0 0 552.54013 0 79 571.00000 552.54013 3.23% - 1s 0 0 552.54349 0 77 571.00000 552.54349 3.23% - 1s 0 0 552.55205 0 80 571.00000 552.55205 3.23% - 1s 0 0 552.56469 0 83 571.00000 552.56469 3.23% - 1s 0 0 552.57507 0 84 571.00000 552.57507 3.23% - 1s 0 0 552.58764 0 83 571.00000 552.58764 3.22% - 1s 0 0 552.59441 0 80 571.00000 552.59441 3.22% - 1s 0 0 552.59514 0 81 571.00000 552.59514 3.22% - 1s 0 0 552.59514 0 80 571.00000 552.59514 3.22% - 1s 0 2 552.61083 0 80 571.00000 552.61083 3.22% - 2s * 83 55 29 568.0000000 553.75035 2.51% 13.0 2s 603 341 558.60000 5 56 568.00000 556.24324 2.07% 12.6 5s H 663 357 567.0000000 556.24324 1.90% 13.5 6s * 1753 466 24 566.0000000 558.97436 1.24% 12.2 8s 2694 558 cutoff 20 566.00000 560.50000 0.97% 12.1 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Mod-K: 1 Explored 5436 nodes (60768 simplex iterations) in 14.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (38, 45), (9, 49), (9, 27), (11, 40), (11, 31), (16, 45), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 744 rows, 1275 columns and 133201 nonzeros Presolve time: 0.08s Presolved: 744 rows, 1275 columns, 133201 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.01038 0 67 570.00000 552.01038 3.16% - 0s 0 0 552.15098 0 70 570.00000 552.15098 3.13% - 0s 0 0 552.18616 0 68 570.00000 552.18616 3.13% - 0s 0 0 552.22414 0 72 570.00000 552.22414 3.12% - 0s 0 0 552.35345 0 69 570.00000 552.35345 3.10% - 0s 0 0 552.39168 0 70 570.00000 552.39168 3.09% - 0s 0 0 552.43573 0 72 570.00000 552.43573 3.08% - 0s 0 0 552.47131 0 74 570.00000 552.47131 3.08% - 0s 0 0 552.47725 0 79 570.00000 552.47725 3.07% - 0s 0 0 552.48712 0 79 570.00000 552.48712 3.07% - 0s 0 0 552.49008 0 79 570.00000 552.49008 3.07% - 0s 0 0 552.49757 0 73 570.00000 552.49757 3.07% - 0s 0 0 552.50115 0 78 570.00000 552.50115 3.07% - 0s 0 0 552.50766 0 77 570.00000 552.50766 3.07% - 1s 0 0 552.50922 0 79 570.00000 552.50922 3.07% - 1s 0 0 552.53696 0 83 570.00000 552.53696 3.06% - 1s 0 0 552.56031 0 77 570.00000 552.56031 3.06% - 1s 0 0 552.57763 0 73 570.00000 552.57763 3.06% - 1s 0 0 552.58112 0 76 570.00000 552.58112 3.06% - 1s 0 0 552.58247 0 78 570.00000 552.58247 3.06% - 1s 0 0 552.59299 0 81 570.00000 552.59299 3.05% - 1s 0 0 552.60931 0 76 570.00000 552.60931 3.05% - 1s 0 0 552.64596 0 74 570.00000 552.64596 3.04% - 1s 0 0 552.64726 0 80 570.00000 552.64726 3.04% - 1s 0 0 552.66316 0 74 570.00000 552.66316 3.04% - 1s H 0 0 568.0000000 552.66316 2.70% - 1s 0 0 552.67319 0 79 568.00000 552.67319 2.70% - 1s 0 0 552.68943 0 76 568.00000 552.68943 2.70% - 1s 0 0 552.68984 0 82 568.00000 552.68984 2.70% - 1s 0 0 552.73618 0 79 568.00000 552.73618 2.69% - 1s 0 0 552.74308 0 80 568.00000 552.74308 2.69% - 1s 0 0 552.74308 0 82 568.00000 552.74308 2.69% - 1s 0 0 552.76641 0 77 568.00000 552.76641 2.68% - 1s 0 0 552.76690 0 81 568.00000 552.76690 2.68% - 1s 0 0 552.76889 0 85 568.00000 552.76889 2.68% - 1s 0 0 552.77343 0 78 568.00000 552.77343 2.68% - 1s 0 0 552.77781 0 82 568.00000 552.77781 2.68% - 2s 0 0 552.77781 0 82 568.00000 552.77781 2.68% - 2s H 0 0 566.0000000 552.77781 2.34% - 2s 0 2 552.78308 0 82 566.00000 552.78308 2.34% - 2s 601 299 562.42391 12 62 566.00000 557.16364 1.56% 13.9 5s 2552 548 564.62500 27 38 566.00000 559.65000 1.12% 13.4 10s 5170 457 563.92308 22 37 566.00000 562.59091 0.60% 12.3 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 6252 nodes (73262 simplex iterations) in 16.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 49), (9, 27), (11, 40), (11, 31), (16, 38), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 745 rows, 1275 columns and 133372 nonzeros Presolve time: 0.07s Presolved: 745 rows, 1275 columns, 133372 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 140 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 63 568.00000 551.50986 2.90% - 0s 0 0 551.84814 0 70 568.00000 551.84814 2.84% - 0s 0 0 551.91754 0 69 568.00000 551.91754 2.83% - 0s 0 0 551.94770 0 66 568.00000 551.94770 2.83% - 0s 0 0 551.99421 0 72 568.00000 551.99421 2.82% - 0s 0 0 552.01955 0 72 568.00000 552.01955 2.81% - 0s 0 0 552.07787 0 68 568.00000 552.07787 2.80% - 0s 0 0 552.09856 0 71 568.00000 552.09856 2.80% - 0s 0 0 552.17449 0 66 568.00000 552.17449 2.79% - 0s 0 0 552.22869 0 75 568.00000 552.22869 2.78% - 0s 0 0 552.24233 0 73 568.00000 552.24233 2.77% - 0s 0 0 552.24703 0 74 568.00000 552.24703 2.77% - 0s 0 0 552.27762 0 79 568.00000 552.27762 2.77% - 0s 0 0 552.27762 0 82 568.00000 552.27762 2.77% - 0s 0 0 552.32732 0 74 568.00000 552.32732 2.76% - 1s 0 0 552.32732 0 77 568.00000 552.32732 2.76% - 1s 0 0 552.34858 0 75 568.00000 552.34858 2.76% - 1s 0 0 552.36064 0 82 568.00000 552.36064 2.75% - 1s 0 0 552.37063 0 77 568.00000 552.37063 2.75% - 1s 0 0 552.37564 0 81 568.00000 552.37564 2.75% - 1s 0 0 552.37580 0 82 568.00000 552.37580 2.75% - 1s 0 0 552.49612 0 74 568.00000 552.49612 2.73% - 1s 0 0 552.51302 0 80 568.00000 552.51302 2.73% - 1s 0 0 552.56052 0 76 568.00000 552.56052 2.72% - 1s 0 0 552.57990 0 80 568.00000 552.57990 2.71% - 1s 0 0 552.58786 0 78 568.00000 552.58786 2.71% - 1s 0 0 552.58989 0 81 568.00000 552.58989 2.71% - 1s 0 0 552.59112 0 79 568.00000 552.59112 2.71% - 1s 0 0 552.59304 0 83 568.00000 552.59304 2.71% - 1s 0 0 552.59304 0 83 568.00000 552.59304 2.71% - 2s 0 2 552.59527 0 83 568.00000 552.59527 2.71% - 2s 607 348 564.75000 25 77 568.00000 556.03425 2.11% 12.0 5s H 648 354 567.0000000 556.03425 1.93% 13.0 7s * 1343 408 26 566.0000000 557.54692 1.49% 11.9 8s 2087 524 564.12500 21 41 566.00000 559.16216 1.21% 11.7 10s 5070 388 cutoff 19 566.00000 562.71429 0.58% 10.9 15s Cutting planes: Gomory: 12 Zero half: 7 Explored 5932 nodes (62120 simplex iterations) in 16.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 21), (3, 30), (4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (10, 31), (10, 51), (12, 17), (15, 25), (17, 51), (21, 36), (22, 30), (22, 35), (24, 44), (25, 44), (29, 32), (31, 35), (36, 37)] adding cut for [(34, 40), (34, 46), (43, 45), (6, 39), (39, 50), (41, 42), (11, 40), (11, 50), (18, 38), (18, 45), (16, 38), (16, 46), (19, 26), (20, 43), (20, 41), (14, 42), (14, 26)] Optimize a model with 747 rows, 1275 columns and 133756 nonzeros Presolve time: 0.08s Presolved: 747 rows, 1275 columns, 133756 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.01038 0 67 570.00000 552.01038 3.16% - 0s 0 0 552.15098 0 70 570.00000 552.15098 3.13% - 0s 0 0 552.18616 0 68 570.00000 552.18616 3.13% - 0s 0 0 552.22414 0 72 570.00000 552.22414 3.12% - 0s 0 0 552.35345 0 69 570.00000 552.35345 3.10% - 0s 0 0 552.39168 0 70 570.00000 552.39168 3.09% - 0s 0 0 552.43573 0 72 570.00000 552.43573 3.08% - 0s 0 0 552.47131 0 74 570.00000 552.47131 3.08% - 0s 0 0 552.47725 0 79 570.00000 552.47725 3.07% - 0s 0 0 552.48712 0 79 570.00000 552.48712 3.07% - 0s 0 0 552.49008 0 79 570.00000 552.49008 3.07% - 0s 0 0 552.49757 0 73 570.00000 552.49757 3.07% - 0s 0 0 552.50115 0 78 570.00000 552.50115 3.07% - 1s 0 0 552.50766 0 77 570.00000 552.50766 3.07% - 1s 0 0 552.50922 0 79 570.00000 552.50922 3.07% - 1s 0 0 552.53696 0 82 570.00000 552.53696 3.06% - 1s 0 0 552.55157 0 76 570.00000 552.55157 3.06% - 1s 0 0 552.56683 0 78 570.00000 552.56683 3.06% - 1s 0 0 552.57794 0 75 570.00000 552.57794 3.06% - 1s 0 0 552.58253 0 79 570.00000 552.58253 3.06% - 1s 0 0 552.58906 0 76 570.00000 552.58906 3.05% - 1s 0 0 552.61837 0 71 570.00000 552.61837 3.05% - 1s 0 0 552.62168 0 75 570.00000 552.62168 3.05% - 1s 0 0 552.63082 0 78 570.00000 552.63082 3.05% - 1s 0 0 552.64760 0 80 570.00000 552.64760 3.04% - 1s 0 0 552.64760 0 83 570.00000 552.64760 3.04% - 1s 0 0 552.66186 0 80 570.00000 552.66186 3.04% - 1s 0 0 552.66631 0 85 570.00000 552.66631 3.04% - 1s 0 0 552.67036 0 78 570.00000 552.67036 3.04% - 1s 0 0 552.67396 0 81 570.00000 552.67396 3.04% - 1s 0 0 552.68075 0 84 570.00000 552.68075 3.04% - 1s 0 0 552.68745 0 85 570.00000 552.68745 3.04% - 1s 0 0 552.69285 0 80 570.00000 552.69285 3.04% - 1s 0 0 552.70097 0 88 570.00000 552.70097 3.03% - 1s 0 0 552.70902 0 85 570.00000 552.70902 3.03% - 1s 0 0 552.71003 0 85 570.00000 552.71003 3.03% - 1s 0 0 552.71088 0 86 570.00000 552.71088 3.03% - 1s 0 0 552.71088 0 86 570.00000 552.71088 3.03% - 2s 0 2 552.71831 0 86 570.00000 552.71831 3.03% - 3s H 105 76 569.0000000 554.45271 2.56% 15.7 3s * 116 78 27 568.0000000 554.45271 2.39% 15.3 3s 601 319 561.37500 13 62 568.00000 556.51316 2.02% 13.3 5s * 1576 466 36 567.0000000 557.27778 1.71% 13.5 9s 2007 603 565.30000 26 53 567.00000 558.00000 1.59% 13.3 10s * 3518 828 29 566.0000000 559.72727 1.11% 12.8 12s 4588 831 564.58772 27 61 566.00000 560.81250 0.92% 12.6 15s 7285 483 cutoff 29 566.00000 563.00000 0.53% 12.0 20s Cutting planes: Gomory: 1 MIR: 2 Zero half: 18 Explored 8244 nodes (95399 simplex iterations) in 21.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (11, 40), (11, 50), (16, 45), (16, 46), (18, 45), (21, 30), (21, 36), (22, 30), (22, 51), (23, 32), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 748 rows, 1275 columns and 134009 nonzeros Presolve time: 0.08s Presolved: 748 rows, 1275 columns, 134009 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.01038 0 67 570.00000 552.01038 3.16% - 0s 0 0 552.15098 0 70 570.00000 552.15098 3.13% - 0s 0 0 552.18616 0 68 570.00000 552.18616 3.13% - 0s 0 0 552.22414 0 72 570.00000 552.22414 3.12% - 0s 0 0 552.35345 0 69 570.00000 552.35345 3.10% - 0s 0 0 552.39168 0 70 570.00000 552.39168 3.09% - 0s 0 0 552.43573 0 72 570.00000 552.43573 3.08% - 0s 0 0 552.47131 0 74 570.00000 552.47131 3.08% - 0s 0 0 552.47725 0 79 570.00000 552.47725 3.07% - 0s 0 0 552.48712 0 79 570.00000 552.48712 3.07% - 0s 0 0 552.49008 0 79 570.00000 552.49008 3.07% - 0s 0 0 552.49757 0 73 570.00000 552.49757 3.07% - 0s 0 0 552.50115 0 78 570.00000 552.50115 3.07% - 1s 0 0 552.50766 0 77 570.00000 552.50766 3.07% - 1s 0 0 552.50922 0 79 570.00000 552.50922 3.07% - 1s 0 0 552.53696 0 82 570.00000 552.53696 3.06% - 1s 0 0 552.55157 0 76 570.00000 552.55157 3.06% - 1s 0 0 552.56683 0 78 570.00000 552.56683 3.06% - 1s 0 0 552.57794 0 75 570.00000 552.57794 3.06% - 1s 0 0 552.58253 0 79 570.00000 552.58253 3.06% - 1s 0 0 552.58906 0 76 570.00000 552.58906 3.05% - 1s 0 0 552.61837 0 71 570.00000 552.61837 3.05% - 1s 0 0 552.62168 0 75 570.00000 552.62168 3.05% - 1s 0 0 552.63082 0 78 570.00000 552.63082 3.05% - 1s 0 0 552.64760 0 80 570.00000 552.64760 3.04% - 1s 0 0 552.64760 0 83 570.00000 552.64760 3.04% - 1s 0 0 552.66186 0 80 570.00000 552.66186 3.04% - 1s 0 0 552.66577 0 80 570.00000 552.66577 3.04% - 1s 0 0 552.66716 0 79 570.00000 552.66716 3.04% - 1s 0 0 552.66877 0 84 570.00000 552.66877 3.04% - 1s 0 0 552.67502 0 82 570.00000 552.67502 3.04% - 1s 0 0 552.68007 0 81 570.00000 552.68007 3.04% - 1s 0 0 552.68036 0 83 570.00000 552.68036 3.04% - 1s 0 0 552.68243 0 83 570.00000 552.68243 3.04% - 1s 0 0 552.68825 0 83 570.00000 552.68825 3.04% - 1s 0 0 552.69164 0 85 570.00000 552.69164 3.04% - 1s 0 0 552.69495 0 88 570.00000 552.69495 3.04% - 2s 0 0 552.69495 0 88 570.00000 552.69495 3.04% - 2s 0 2 552.69791 0 88 570.00000 552.69791 3.04% - 2s H 27 26 568.0000000 553.87984 2.49% 17.6 3s H 68 47 567.0000000 554.35770 2.23% 15.2 3s 601 322 562.33333 13 62 567.00000 556.36842 1.88% 13.4 5s 1534 478 558.82123 23 59 567.00000 556.97778 1.77% 13.4 10s * 2211 649 30 566.0000000 558.15625 1.39% 13.3 11s 4035 874 564.27778 26 52 566.00000 560.03125 1.05% 13.1 15s 6619 704 cutoff 29 566.00000 561.89362 0.73% 12.7 20s Cutting planes: Gomory: 8 MIR: 2 Zero half: 10 Explored 8748 nodes (104830 simplex iterations) in 23.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 42), (5, 48), (8, 27), (8, 44), (9, 27), (9, 32), (11, 40), (11, 50), (14, 19), (14, 26), (15, 25), (15, 26), (16, 45), (16, 46), (20, 41), (20, 43), (21, 30), (21, 36), (22, 30), (22, 51), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37), (41, 42), (43, 45)] Optimize a model with 749 rows, 1275 columns and 134537 nonzeros Presolve time: 0.08s Presolved: 749 rows, 1275 columns, 134537 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.01038 0 67 570.00000 552.01038 3.16% - 0s 0 0 552.15098 0 70 570.00000 552.15098 3.13% - 0s 0 0 552.18616 0 68 570.00000 552.18616 3.13% - 0s 0 0 552.22414 0 72 570.00000 552.22414 3.12% - 0s 0 0 552.35345 0 69 570.00000 552.35345 3.10% - 0s 0 0 552.39168 0 70 570.00000 552.39168 3.09% - 0s 0 0 552.43573 0 72 570.00000 552.43573 3.08% - 0s 0 0 552.47131 0 74 570.00000 552.47131 3.08% - 0s 0 0 552.47725 0 79 570.00000 552.47725 3.07% - 0s 0 0 552.48712 0 79 570.00000 552.48712 3.07% - 0s 0 0 552.49008 0 79 570.00000 552.49008 3.07% - 0s 0 0 552.49757 0 73 570.00000 552.49757 3.07% - 0s 0 0 552.50115 0 78 570.00000 552.50115 3.07% - 0s 0 0 552.50766 0 77 570.00000 552.50766 3.07% - 1s 0 0 552.50922 0 79 570.00000 552.50922 3.07% - 1s 0 0 552.53696 0 82 570.00000 552.53696 3.06% - 1s 0 0 552.55157 0 76 570.00000 552.55157 3.06% - 1s 0 0 552.56683 0 78 570.00000 552.56683 3.06% - 1s 0 0 552.57794 0 75 570.00000 552.57794 3.06% - 1s 0 0 552.58253 0 79 570.00000 552.58253 3.06% - 1s 0 0 552.58906 0 76 570.00000 552.58906 3.05% - 1s 0 0 552.61837 0 71 570.00000 552.61837 3.05% - 1s 0 0 552.62168 0 75 570.00000 552.62168 3.05% - 1s 0 0 552.63082 0 78 570.00000 552.63082 3.05% - 1s 0 0 552.64587 0 80 570.00000 552.64587 3.04% - 1s 0 0 552.64839 0 83 570.00000 552.64839 3.04% - 1s 0 0 552.66937 0 75 570.00000 552.66937 3.04% - 1s 0 0 552.67030 0 80 570.00000 552.67030 3.04% - 1s 0 0 552.67572 0 81 570.00000 552.67572 3.04% - 1s 0 0 552.68016 0 85 570.00000 552.68016 3.04% - 1s 0 0 552.68616 0 71 570.00000 552.68616 3.04% - 1s 0 0 552.68778 0 85 570.00000 552.68778 3.04% - 1s 0 0 552.69296 0 82 570.00000 552.69296 3.04% - 1s H 0 0 567.0000000 552.69296 2.52% - 1s 0 0 552.69296 0 82 567.00000 552.69296 2.52% - 1s 0 2 552.98576 0 82 567.00000 552.98576 2.47% - 2s 23 19 553.39001 14 68 567.00000 553.39001 2.40% 19.3 5s * 462 230 30 566.0000000 556.10778 1.75% 15.2 6s 2334 823 564.00000 29 30 566.00000 559.00000 1.24% 12.6 10s 5142 1189 562.21739 22 65 566.00000 560.68293 0.94% 11.7 15s 8051 1070 563.25000 30 18 566.00000 562.00000 0.71% 11.3 20s Cutting planes: Gomory: 7 MIR: 2 Zero half: 19 Mod-K: 1 Explored 10987 nodes (118068 simplex iterations) in 24.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (6, 39), (39, 50), (10, 50), (10, 51), (11, 40), (11, 31), (16, 38), (16, 46), (17, 51), (17, 30), (22, 35), (22, 30), (31, 35)] adding cut for [(2, 33), (2, 23), (3, 12), (3, 21), (4, 37), (4, 29), (21, 36), (23, 32), (36, 37), (29, 32)] Optimize a model with 751 rows, 1275 columns and 134712 nonzeros Presolve time: 0.08s Presolved: 751 rows, 1275 columns, 134712 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 63 568.00000 551.50986 2.90% - 0s 0 0 551.84814 0 70 568.00000 551.84814 2.84% - 0s 0 0 551.94407 0 65 568.00000 551.94407 2.83% - 0s 0 0 552.16870 0 70 568.00000 552.16870 2.79% - 0s 0 0 552.21589 0 77 568.00000 552.21589 2.78% - 0s 0 0 552.30673 0 77 568.00000 552.30673 2.76% - 0s 0 0 552.42303 0 75 568.00000 552.42303 2.74% - 0s 0 0 552.43322 0 79 568.00000 552.43322 2.74% - 0s 0 0 552.43392 0 79 568.00000 552.43392 2.74% - 0s 0 0 552.43671 0 81 568.00000 552.43671 2.74% - 0s 0 0 552.44403 0 85 568.00000 552.44403 2.74% - 1s 0 0 552.49195 0 74 568.00000 552.49195 2.73% - 1s 0 0 552.49810 0 78 568.00000 552.49810 2.73% - 1s 0 0 552.50946 0 78 568.00000 552.50946 2.73% - 1s 0 0 552.51784 0 75 568.00000 552.51784 2.73% - 1s 0 0 552.52358 0 83 568.00000 552.52358 2.72% - 1s 0 0 552.55039 0 73 568.00000 552.55039 2.72% - 1s 0 0 552.55943 0 81 568.00000 552.55943 2.72% - 1s 0 0 552.56424 0 81 568.00000 552.56424 2.72% - 1s 0 0 552.56461 0 83 568.00000 552.56461 2.72% - 1s 0 0 552.57552 0 78 568.00000 552.57552 2.72% - 1s 0 0 552.57552 0 81 568.00000 552.57552 2.72% - 1s 0 0 552.57922 0 83 568.00000 552.57922 2.71% - 1s 0 0 552.58251 0 85 568.00000 552.58251 2.71% - 1s 0 2 552.58603 0 85 568.00000 552.58603 2.71% - 2s * 38 27 32 567.0000000 553.75000 2.34% 12.1 2s 609 304 563.39024 23 83 567.00000 557.00563 1.76% 11.8 5s * 1149 377 38 566.0000000 557.00563 1.59% 12.8 7s 2515 550 561.91837 21 49 566.00000 560.06250 1.05% 12.2 10s Cutting planes: Gomory: 2 Zero half: 17 Explored 5235 nodes (59424 simplex iterations) in 14.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (5, 48), (5, 14), (38, 45), (41, 43), (10, 17), (10, 31), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (20, 41), (20, 42), (14, 42), (43, 45)] adding cut for [(35, 51), (36, 37), (6, 50), (39, 50), (39, 51), (8, 44), (8, 27), (9, 32), (9, 27), (21, 36), (21, 30), (22, 35), (22, 30), (25, 44), (24, 49), (24, 25), (4, 37), (4, 29), (29, 32)] Optimize a model with 753 rows, 1275 columns and 135092 nonzeros Presolve time: 0.08s Presolved: 753 rows, 1275 columns, 135092 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 572.0000000 550.84524 3.70% - 0s 0 0 551.50986 0 62 572.00000 551.50986 3.58% - 0s 0 0 551.50986 0 56 572.00000 551.50986 3.58% - 0s 0 0 551.80458 0 63 572.00000 551.80458 3.53% - 0s 0 0 551.97037 0 66 572.00000 551.97037 3.50% - 0s 0 0 552.13943 0 68 572.00000 552.13943 3.47% - 0s 0 0 552.16090 0 69 572.00000 552.16090 3.47% - 0s 0 0 552.18251 0 72 572.00000 552.18251 3.46% - 0s 0 0 552.20283 0 71 572.00000 552.20283 3.46% - 0s 0 0 552.29519 0 71 572.00000 552.29519 3.44% - 0s 0 0 552.31967 0 72 572.00000 552.31967 3.44% - 0s 0 0 552.38623 0 66 572.00000 552.38623 3.43% - 0s 0 0 552.40211 0 72 572.00000 552.40211 3.43% - 0s 0 0 552.46456 0 72 572.00000 552.46456 3.42% - 0s 0 0 552.47419 0 75 572.00000 552.47419 3.41% - 1s 0 0 552.47767 0 75 572.00000 552.47767 3.41% - 1s 0 0 552.48346 0 77 572.00000 552.48346 3.41% - 1s 0 0 552.49088 0 81 572.00000 552.49088 3.41% - 1s 0 0 552.49437 0 82 572.00000 552.49437 3.41% - 1s 0 0 552.49773 0 86 572.00000 552.49773 3.41% - 1s 0 0 552.55125 0 76 572.00000 552.55125 3.40% - 1s 0 0 552.56436 0 79 572.00000 552.56436 3.40% - 1s 0 0 552.57998 0 80 572.00000 552.57998 3.40% - 1s 0 0 552.63789 0 78 572.00000 552.63789 3.38% - 1s 0 0 552.71973 0 83 572.00000 552.71973 3.37% - 1s 0 0 552.73961 0 83 572.00000 552.73961 3.37% - 1s 0 0 552.74751 0 85 572.00000 552.74751 3.37% - 1s 0 0 552.80045 0 79 572.00000 552.80045 3.36% - 1s 0 0 552.81539 0 80 572.00000 552.81539 3.35% - 1s 0 0 552.82776 0 79 572.00000 552.82776 3.35% - 1s 0 0 552.83644 0 81 572.00000 552.83644 3.35% - 1s 0 0 552.83717 0 83 572.00000 552.83717 3.35% - 1s 0 0 552.83734 0 83 572.00000 552.83734 3.35% - 1s 0 0 552.83734 0 83 572.00000 552.83734 3.35% - 2s H 0 0 569.0000000 552.83734 2.84% - 2s 0 2 552.84798 0 83 569.00000 552.84798 2.84% - 2s * 87 54 24 568.0000000 554.46475 2.38% 10.6 3s * 217 127 26 567.0000000 554.72932 2.16% 12.0 3s 603 302 561.29730 21 56 567.00000 557.04110 1.76% 12.1 5s * 1383 341 24 566.0000000 557.92361 1.43% 13.6 7s 2494 468 563.22424 22 54 566.00000 559.60938 1.13% 12.9 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Mod-K: 1 Explored 5458 nodes (63415 simplex iterations) in 14.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 33), (2, 23), (3, 21), (3, 30), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (22, 35), (22, 30), (23, 32), (36, 37), (5, 18), (29, 32), (31, 35)] Optimize a model with 754 rows, 1275 columns and 135302 nonzeros Presolve time: 0.08s Presolved: 754 rows, 1275 columns, 135302 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 552.01038 0 67 570.00000 552.01038 3.16% - 0s 0 0 552.15098 0 70 570.00000 552.15098 3.13% - 0s 0 0 552.18616 0 68 570.00000 552.18616 3.13% - 0s 0 0 552.22414 0 72 570.00000 552.22414 3.12% - 0s 0 0 552.35345 0 69 570.00000 552.35345 3.10% - 0s 0 0 552.39168 0 70 570.00000 552.39168 3.09% - 0s 0 0 552.43573 0 72 570.00000 552.43573 3.08% - 0s 0 0 552.47131 0 74 570.00000 552.47131 3.08% - 0s 0 0 552.47725 0 79 570.00000 552.47725 3.07% - 0s 0 0 552.48712 0 79 570.00000 552.48712 3.07% - 0s 0 0 552.49008 0 79 570.00000 552.49008 3.07% - 0s 0 0 552.49757 0 73 570.00000 552.49757 3.07% - 0s 0 0 552.50115 0 78 570.00000 552.50115 3.07% - 0s 0 0 552.50766 0 77 570.00000 552.50766 3.07% - 1s 0 0 552.50922 0 79 570.00000 552.50922 3.07% - 1s 0 0 552.53696 0 82 570.00000 552.53696 3.06% - 1s 0 0 552.55157 0 76 570.00000 552.55157 3.06% - 1s 0 0 552.56683 0 78 570.00000 552.56683 3.06% - 1s 0 0 552.57794 0 75 570.00000 552.57794 3.06% - 1s 0 0 552.58253 0 79 570.00000 552.58253 3.06% - 1s 0 0 552.58906 0 76 570.00000 552.58906 3.05% - 1s 0 0 552.61837 0 71 570.00000 552.61837 3.05% - 1s 0 0 552.62168 0 75 570.00000 552.62168 3.05% - 1s 0 0 552.63427 0 80 570.00000 552.63427 3.05% - 1s 0 0 552.64897 0 79 570.00000 552.64897 3.04% - 1s 0 0 552.65573 0 85 570.00000 552.65573 3.04% - 1s 0 0 552.68301 0 80 570.00000 552.68301 3.04% - 1s 0 0 552.70037 0 82 570.00000 552.70037 3.04% - 1s 0 0 552.70239 0 86 570.00000 552.70239 3.03% - 1s 0 0 552.70594 0 83 570.00000 552.70594 3.03% - 1s 0 0 552.70594 0 83 570.00000 552.70594 3.03% - 2s 0 2 552.70638 0 83 570.00000 552.70638 3.03% - 2s H 27 27 568.0000000 553.82498 2.50% 16.5 2s 601 345 559.75000 9 62 568.00000 556.67059 1.99% 13.2 5s * 732 368 33 567.0000000 556.67059 1.82% 14.4 6s * 1477 401 33 566.0000000 557.65385 1.47% 13.3 8s 2411 561 cutoff 25 566.00000 559.23529 1.20% 12.7 10s 4959 679 562.11806 24 56 566.00000 561.37838 0.82% 11.9 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 7372 nodes (82197 simplex iterations) in 18.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (36, 37), (6, 16), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] adding cut for [(5, 48), (5, 18), (38, 45), (41, 43), (43, 45), (14, 42), (14, 26), (15, 26), (18, 38), (20, 41), (20, 42)] Optimize a model with 756 rows, 1275 columns and 135539 nonzeros Presolve time: 0.08s Presolved: 756 rows, 1275 columns, 135539 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.84814 0 70 1672.00000 551.84814 67.0% - 0s 0 0 551.91579 0 71 1672.00000 551.91579 67.0% - 0s 0 0 551.94770 0 66 1672.00000 551.94770 67.0% - 0s 0 0 551.96759 0 73 1672.00000 551.96759 67.0% - 0s 0 0 552.02215 0 74 1672.00000 552.02215 67.0% - 0s 0 0 552.07562 0 74 1672.00000 552.07562 67.0% - 0s 0 0 552.08225 0 75 1672.00000 552.08225 67.0% - 0s 0 0 552.10607 0 77 1672.00000 552.10607 67.0% - 0s 0 0 552.11360 0 79 1672.00000 552.11360 67.0% - 0s 0 0 552.14116 0 79 1672.00000 552.14116 67.0% - 1s H 0 0 700.0000000 552.14116 21.1% - 1s H 0 0 586.0000000 552.14116 5.78% - 1s H 0 0 581.0000000 552.14116 4.97% - 1s 0 0 552.15130 0 79 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 56 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 72 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 73 581.00000 552.15130 4.97% - 1s 0 0 552.30263 0 81 581.00000 552.30263 4.94% - 1s 0 0 552.43139 0 72 581.00000 552.43139 4.92% - 1s 0 0 552.44966 0 74 581.00000 552.44966 4.91% - 1s 0 0 552.46847 0 79 581.00000 552.46847 4.91% - 1s 0 0 552.48258 0 75 581.00000 552.48258 4.91% - 1s 0 0 552.48926 0 78 581.00000 552.48926 4.91% - 1s 0 0 552.49464 0 82 581.00000 552.49464 4.91% - 1s 0 0 552.49883 0 85 581.00000 552.49883 4.91% - 1s 0 0 552.50704 0 82 581.00000 552.50704 4.90% - 2s 0 0 552.51029 0 84 581.00000 552.51029 4.90% - 2s 0 0 552.51447 0 84 581.00000 552.51447 4.90% - 2s 0 0 552.52035 0 78 581.00000 552.52035 4.90% - 2s H 0 0 573.0000000 552.52035 3.57% - 2s H 0 0 572.0000000 552.52035 3.41% - 2s H 0 0 570.0000000 552.52035 3.07% - 3s 0 2 552.52819 0 78 570.00000 552.52819 3.07% - 3s * 116 78 30 568.0000000 554.22813 2.42% 14.5 3s 601 322 561.76000 17 79 568.00000 556.15455 2.09% 13.5 5s * 645 331 34 567.0000000 556.15455 1.91% 14.2 7s * 1119 355 35 566.0000000 556.69458 1.64% 13.8 8s 1921 432 561.28571 26 44 566.00000 559.04142 1.23% 12.8 10s 4585 472 564.14617 23 67 566.00000 562.02439 0.70% 11.7 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 5863 nodes (65723 simplex iterations) in 16.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (5, 19), (5, 45), (7, 24), (8, 27), (8, 44), (11, 31), (11, 40), (16, 45), (16, 46), (21, 30), (21, 36), (22, 30), (22, 35), (24, 25), (25, 44), (27, 32), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 757 rows, 1275 columns and 135815 nonzeros Presolve time: 0.08s Presolved: 757 rows, 1275 columns, 135815 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 551.97037 0 66 571.00000 551.97037 3.33% - 0s 0 0 552.14105 0 67 571.00000 552.14105 3.30% - 0s 0 0 552.18750 0 70 571.00000 552.18750 3.29% - 0s 0 0 552.21674 0 72 571.00000 552.21674 3.29% - 0s 0 0 552.26031 0 72 571.00000 552.26031 3.28% - 0s 0 0 552.29309 0 71 571.00000 552.29309 3.28% - 0s 0 0 552.30010 0 76 571.00000 552.30010 3.27% - 0s 0 0 552.31557 0 75 571.00000 552.31557 3.27% - 0s 0 0 552.38704 0 67 571.00000 552.38704 3.26% - 0s 0 0 552.39662 0 72 571.00000 552.39662 3.26% - 0s 0 0 552.42024 0 62 571.00000 552.42024 3.25% - 0s 0 0 552.42024 0 66 571.00000 552.42024 3.25% - 1s 0 0 552.42626 0 76 571.00000 552.42626 3.25% - 1s 0 0 552.45007 0 70 571.00000 552.45007 3.25% - 1s 0 0 552.46633 0 75 571.00000 552.46633 3.25% - 1s 0 0 552.46892 0 74 571.00000 552.46892 3.25% - 1s 0 0 552.47002 0 81 571.00000 552.47002 3.25% - 1s 0 0 552.47134 0 83 571.00000 552.47134 3.24% - 1s 0 0 552.48083 0 73 571.00000 552.48083 3.24% - 1s 0 0 552.49003 0 74 571.00000 552.49003 3.24% - 1s 0 0 552.49863 0 81 571.00000 552.49863 3.24% - 1s 0 0 552.50404 0 81 571.00000 552.50404 3.24% - 1s 0 0 552.50404 0 81 571.00000 552.50404 3.24% - 1s H 0 0 569.0000000 552.50404 2.90% - 2s 0 2 552.53255 0 81 569.00000 552.53255 2.89% - 2s * 94 61 30 568.0000000 554.05767 2.45% 12.2 2s * 263 154 21 567.0000000 555.02509 2.11% 13.4 3s 603 328 560.00000 8 56 567.00000 556.55556 1.84% 12.9 5s * 1102 387 35 566.0000000 557.00505 1.59% 13.1 7s 2612 491 563.75000 23 56 566.00000 559.83333 1.09% 12.5 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 5387 nodes (61846 simplex iterations) in 14.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (11, 40), (11, 31), (5, 14), (5, 18), (41, 43), (43, 45), (14, 42), (16, 45), (16, 46), (17, 22), (18, 38), (35, 51), (20, 41), (20, 42), (22, 51), (31, 35)] adding cut for [(3, 33), (3, 30), (36, 37), (8, 24), (8, 27), (15, 25), (15, 26), (19, 26), (21, 36), (21, 30), (25, 44), (24, 44), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 759 rows, 1275 columns and 136122 nonzeros Presolve time: 0.08s Presolved: 759 rows, 1275 columns, 136122 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start 0 0 551.50986 0 63 1672.00000 551.50986 67.0% - 0s 0 0 551.84814 0 70 1672.00000 551.84814 67.0% - 0s 0 0 551.91579 0 71 1672.00000 551.91579 67.0% - 0s 0 0 551.94770 0 66 1672.00000 551.94770 67.0% - 0s 0 0 551.96759 0 73 1672.00000 551.96759 67.0% - 0s 0 0 552.02215 0 74 1672.00000 552.02215 67.0% - 0s 0 0 552.07562 0 74 1672.00000 552.07562 67.0% - 0s 0 0 552.08225 0 75 1672.00000 552.08225 67.0% - 0s 0 0 552.10607 0 77 1672.00000 552.10607 67.0% - 0s 0 0 552.11360 0 79 1672.00000 552.11360 67.0% - 0s 0 0 552.14116 0 79 1672.00000 552.14116 67.0% - 1s H 0 0 674.0000000 552.14116 18.1% - 1s H 0 0 586.0000000 552.14116 5.78% - 1s H 0 0 581.0000000 552.14116 4.97% - 1s 0 0 552.15130 0 79 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 56 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 72 581.00000 552.15130 4.97% - 1s 0 0 552.15130 0 73 581.00000 552.15130 4.97% - 1s 0 0 552.31888 0 77 581.00000 552.31888 4.94% - 1s 0 0 552.43280 0 72 581.00000 552.43280 4.92% - 1s 0 0 552.50191 0 82 581.00000 552.50191 4.91% - 1s 0 0 552.55553 0 76 581.00000 552.55553 4.90% - 1s 0 0 552.55553 0 76 581.00000 552.55553 4.90% - 1s H 0 0 574.0000000 552.55553 3.74% - 2s 0 2 552.62948 0 76 574.00000 552.62948 3.72% - 2s * 103 72 33 571.0000000 554.38325 2.91% 13.4 3s H 106 53 567.0000000 554.38325 2.23% 13.0 3s 601 332 565.00000 28 79 567.00000 556.30000 1.89% 12.5 5s * 1695 484 30 566.0000000 558.25926 1.37% 12.7 8s 2305 630 564.68750 28 37 566.00000 559.05263 1.23% 12.5 10s 5181 723 562.73684 27 50 566.00000 561.79474 0.74% 11.6 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 7271 nodes (80052 simplex iterations) in 18.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(3, 12), (3, 30), (8, 24), (8, 44), (11, 31), (11, 40), (14, 26), (14, 42), (16, 38), (16, 46), (17, 22), (17, 51), (18, 38), (18, 45), (20, 41), (20, 43), (22, 30), (25, 26), (25, 44), (31, 35), (34, 40), (34, 46), (35, 51), (41, 42), (43, 45)] Optimize a model with 760 rows, 1275 columns and 136447 nonzeros Presolve time: 0.08s Presolved: 760 rows, 1275 columns, 136447 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16636 0 69 567.00000 552.16636 2.62% - 0s 0 0 552.22428 0 77 567.00000 552.22428 2.61% - 0s 0 0 552.35410 0 65 567.00000 552.35410 2.58% - 0s 0 0 552.35422 0 70 567.00000 552.35422 2.58% - 0s 0 0 552.39747 0 66 567.00000 552.39747 2.58% - 0s 0 0 552.39747 0 70 567.00000 552.39747 2.58% - 0s 0 0 552.42300 0 71 567.00000 552.42300 2.57% - 1s 0 0 552.42706 0 74 567.00000 552.42706 2.57% - 1s 0 0 552.46063 0 73 567.00000 552.46063 2.56% - 1s 0 0 552.46777 0 78 567.00000 552.46777 2.56% - 1s 0 0 552.47346 0 79 567.00000 552.47346 2.56% - 1s 0 0 552.48289 0 75 567.00000 552.48289 2.56% - 1s 0 0 552.48396 0 78 567.00000 552.48396 2.56% - 1s 0 0 552.48444 0 80 567.00000 552.48444 2.56% - 1s 0 2 552.49715 0 80 567.00000 552.49715 2.56% - 2s 628 349 557.36735 20 58 567.00000 556.50000 1.85% 13.0 5s * 1409 469 23 566.0000000 556.91667 1.60% 12.5 6s 2930 789 cutoff 23 566.00000 559.31250 1.18% 12.3 10s 5579 817 562.80000 21 42 566.00000 561.50000 0.80% 12.0 15s Cutting planes: Gomory: 1 Zero half: 12 Explored 7970 nodes (90140 simplex iterations) in 19.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 37), (4, 29), (11, 40), (11, 31), (34, 40), (34, 46), (16, 46), (16, 18), (21, 36), (21, 30), (22, 35), (22, 30), (23, 32), (36, 37), (29, 32), (31, 35)] Optimize a model with 761 rows, 1275 columns and 136600 nonzeros Presolve time: 0.08s Presolved: 761 rows, 1275 columns, 136600 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 567.0000000 550.84524 2.85% - 0s 0 0 551.50986 0 62 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 56 567.00000 551.50986 2.73% - 0s 0 0 551.50986 0 63 567.00000 551.50986 2.73% - 0s 0 0 551.84814 0 70 567.00000 551.84814 2.67% - 0s 0 0 551.94407 0 65 567.00000 551.94407 2.66% - 0s 0 0 552.16636 0 69 567.00000 552.16636 2.62% - 0s 0 0 552.22428 0 77 567.00000 552.22428 2.61% - 0s 0 0 552.35410 0 65 567.00000 552.35410 2.58% - 0s 0 0 552.35422 0 70 567.00000 552.35422 2.58% - 0s 0 0 552.39747 0 66 567.00000 552.39747 2.58% - 0s 0 0 552.39747 0 70 567.00000 552.39747 2.58% - 0s 0 0 552.42300 0 71 567.00000 552.42300 2.57% - 0s 0 0 552.42706 0 74 567.00000 552.42706 2.57% - 0s 0 0 552.46063 0 73 567.00000 552.46063 2.56% - 1s 0 0 552.46777 0 78 567.00000 552.46777 2.56% - 1s 0 0 552.47346 0 79 567.00000 552.47346 2.56% - 1s 0 0 552.48289 0 75 567.00000 552.48289 2.56% - 1s 0 0 552.48396 0 78 567.00000 552.48396 2.56% - 1s 0 0 552.48444 0 80 567.00000 552.48444 2.56% - 1s 0 2 552.49715 0 80 567.00000 552.49715 2.56% - 2s 635 355 558.64211 25 51 567.00000 556.45455 1.86% 12.6 5s * 3055 799 27 566.0000000 559.58824 1.13% 12.1 9s 3138 817 cutoff 28 566.00000 559.64198 1.12% 12.0 10s 6289 810 564.50000 28 30 566.00000 562.07692 0.69% 11.3 15s Cutting planes: Gomory: 1 Zero half: 12 Explored 8343 nodes (88767 simplex iterations) in 18.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(4, 29), (4, 37), (8, 24), (8, 27), (9, 27), (9, 32), (11, 40), (11, 50), (15, 26), (16, 38), (16, 46), (21, 30), (21, 36), (22, 30), (22, 51), (24, 44), (25, 26), (25, 44), (29, 32), (31, 35), (31, 50), (34, 40), (34, 46), (35, 51), (36, 37)] Optimize a model with 762 rows, 1275 columns and 136925 nonzeros Presolve time: 0.08s Presolved: 762 rows, 1275 columns, 136925 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 574.0000000 550.84524 4.03% - 0s 0 0 551.50986 0 62 574.00000 551.50986 3.92% - 0s 0 0 551.50986 0 56 574.00000 551.50986 3.92% - 0s 0 0 551.80458 0 63 574.00000 551.80458 3.87% - 0s 0 0 551.97037 0 66 574.00000 551.97037 3.84% - 0s 0 0 552.13943 0 68 574.00000 552.13943 3.81% - 0s 0 0 552.16090 0 69 574.00000 552.16090 3.80% - 0s 0 0 552.17958 0 74 574.00000 552.17958 3.80% - 0s 0 0 552.20287 0 72 574.00000 552.20287 3.80% - 0s 0 0 552.32209 0 69 574.00000 552.32209 3.78% - 0s 0 0 552.38507 0 74 574.00000 552.38507 3.77% - 0s 0 0 552.41248 0 72 574.00000 552.41248 3.76% - 0s 0 0 552.44599 0 70 574.00000 552.44599 3.76% - 1s 0 0 552.44841 0 76 574.00000 552.44841 3.75% - 1s 0 0 552.45122 0 77 574.00000 552.45122 3.75% - 1s 0 0 552.46394 0 78 574.00000 552.46394 3.75% - 1s 0 0 552.47535 0 82 574.00000 552.47535 3.75% - 1s 0 0 552.47848 0 80 574.00000 552.47848 3.75% - 1s 0 0 552.48193 0 81 574.00000 552.48193 3.75% - 1s 0 0 552.51874 0 78 574.00000 552.51874 3.74% - 1s 0 0 552.52729 0 80 574.00000 552.52729 3.74% - 1s 0 0 552.53603 0 83 574.00000 552.53603 3.74% - 1s 0 0 552.54394 0 84 574.00000 552.54394 3.74% - 1s 0 0 552.54949 0 81 574.00000 552.54949 3.74% - 1s 0 0 552.55668 0 84 574.00000 552.55668 3.74% - 1s 0 0 552.55668 0 83 574.00000 552.55668 3.74% - 2s 0 2 552.55704 0 83 574.00000 552.55704 3.74% - 2s * 107 71 35 567.0000000 553.81672 2.33% 11.9 3s 601 334 559.16667 8 62 567.00000 556.25078 1.90% 11.9 5s * 2265 686 32 566.0000000 558.40000 1.34% 12.6 9s 2305 692 561.35484 25 50 566.00000 558.44444 1.33% 12.6 10s 4784 878 564.33333 36 37 566.00000 560.50000 0.97% 12.5 15s 7498 551 563.28571 28 49 566.00000 562.37500 0.64% 12.2 20s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Mod-K: 1 Explored 8779 nodes (103435 simplex iterations) in 22.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(36, 37), (39, 50), (9, 27), (10, 50), (10, 51), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] adding cut for [(2, 23), (3, 17), (3, 23), (6, 38), (11, 40), (11, 31), (34, 40), (34, 46), (16, 38), (16, 46), (17, 35), (31, 35)] Optimize a model with 764 rows, 1275 columns and 137108 nonzeros Presolve time: 0.08s Presolved: 764 rows, 1275 columns, 137108 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 568.0000000 550.84524 3.02% - 0s 0 0 551.50986 0 62 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 56 568.00000 551.50986 2.90% - 0s 0 0 551.50986 0 63 568.00000 551.50986 2.90% - 0s 0 0 551.84814 0 70 568.00000 551.84814 2.84% - 0s 0 0 551.94407 0 65 568.00000 551.94407 2.83% - 0s 0 0 552.16870 0 70 568.00000 552.16870 2.79% - 0s 0 0 552.21589 0 77 568.00000 552.21589 2.78% - 0s 0 0 552.30673 0 77 568.00000 552.30673 2.76% - 0s 0 0 552.42303 0 75 568.00000 552.42303 2.74% - 0s 0 0 552.43322 0 79 568.00000 552.43322 2.74% - 0s 0 0 552.43557 0 76 568.00000 552.43557 2.74% - 0s 0 0 552.45120 0 84 568.00000 552.45120 2.74% - 0s 0 0 552.51983 0 76 568.00000 552.51983 2.73% - 0s 0 0 552.53395 0 73 568.00000 552.53395 2.72% - 0s 0 0 552.54976 0 79 568.00000 552.54976 2.72% - 0s 0 0 552.57520 0 71 568.00000 552.57520 2.72% - 1s 0 0 552.58040 0 79 568.00000 552.58040 2.71% - 1s 0 0 552.62489 0 83 568.00000 552.62489 2.71% - 1s 0 0 552.62489 0 86 568.00000 552.62489 2.71% - 1s 0 0 552.64074 0 73 568.00000 552.64074 2.70% - 1s 0 0 552.64074 0 77 568.00000 552.64074 2.70% - 1s 0 0 552.65950 0 84 568.00000 552.65950 2.70% - 1s 0 0 552.68143 0 77 568.00000 552.68143 2.70% - 1s 0 0 552.72954 0 80 568.00000 552.72954 2.69% - 1s 0 0 552.78238 0 76 568.00000 552.78238 2.68% - 1s 0 0 552.78238 0 79 568.00000 552.78238 2.68% - 1s 0 0 552.78497 0 79 568.00000 552.78497 2.68% - 1s 0 0 552.78552 0 81 568.00000 552.78552 2.68% - 1s 0 0 552.78552 0 81 568.00000 552.78552 2.68% - 1s 0 2 552.78967 0 81 568.00000 552.78967 2.68% - 2s * 128 87 21 567.0000000 554.65132 2.18% 16.5 2s 604 351 562.29412 11 82 567.00000 556.66667 1.82% 13.9 5s * 762 378 49 566.0000000 556.66667 1.65% 14.8 6s 2521 510 563.79191 30 45 566.00000 559.60000 1.13% 13.6 10s 5418 276 cutoff 31 566.00000 562.81818 0.56% 12.5 15s Cutting planes: Gomory: 1 Zero half: 15 Explored 6008 nodes (73195 simplex iterations) in 15.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (3, 17), (3, 23), (5, 48), (5, 14), (41, 43), (10, 50), (10, 31), (11, 40), (11, 50), (34, 40), (34, 46), (16, 46), (16, 45), (17, 35), (20, 41), (20, 42), (14, 42), (43, 45), (31, 35)] adding cut for [(36, 37), (39, 51), (9, 49), (9, 27), (12, 39), (21, 36), (21, 30), (22, 51), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32)] Optimize a model with 766 rows, 1275 columns and 137409 nonzeros Presolve time: 0.08s Presolved: 766 rows, 1275 columns, 137409 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 63 569.00000 551.50986 3.07% - 0s H 0 0 567.0000000 551.50986 2.73% - 0s 0 0 551.84764 0 70 567.00000 551.84764 2.67% - 0s 0 0 551.91754 0 69 567.00000 551.91754 2.66% - 0s 0 0 551.94033 0 70 567.00000 551.94033 2.66% - 0s 0 0 551.99370 0 76 567.00000 551.99370 2.65% - 0s 0 0 552.01337 0 71 567.00000 552.01337 2.64% - 0s 0 0 552.02233 0 76 567.00000 552.02233 2.64% - 0s 0 0 552.04287 0 76 567.00000 552.04287 2.64% - 0s 0 0 552.05516 0 73 567.00000 552.05516 2.64% - 0s 0 0 552.09142 0 80 567.00000 552.09142 2.63% - 0s 0 0 552.17436 0 75 567.00000 552.17436 2.61% - 0s 0 0 552.20932 0 80 567.00000 552.20932 2.61% - 0s 0 0 552.23537 0 71 567.00000 552.23537 2.60% - 0s 0 0 552.23935 0 79 567.00000 552.23935 2.60% - 0s 0 0 552.24338 0 79 567.00000 552.24338 2.60% - 1s 0 0 552.35696 0 82 567.00000 552.35696 2.58% - 1s 0 0 552.38814 0 81 567.00000 552.38814 2.58% - 1s 0 0 552.44372 0 86 567.00000 552.44372 2.57% - 1s 0 0 552.47045 0 84 567.00000 552.47045 2.56% - 1s 0 0 552.48651 0 82 567.00000 552.48651 2.56% - 1s 0 0 552.48958 0 80 567.00000 552.48958 2.56% - 1s 0 0 552.53255 0 82 567.00000 552.53255 2.55% - 1s 0 0 552.59495 0 79 567.00000 552.59495 2.54% - 1s 0 0 552.67213 0 79 567.00000 552.67213 2.53% - 1s 0 0 552.76886 0 84 567.00000 552.76886 2.51% - 1s 0 0 552.77338 0 87 567.00000 552.77338 2.51% - 1s 0 0 552.78717 0 85 567.00000 552.78717 2.51% - 1s 0 0 552.79007 0 85 567.00000 552.79007 2.51% - 1s 0 0 552.80569 0 84 567.00000 552.80569 2.50% - 1s 0 0 552.81403 0 81 567.00000 552.81403 2.50% - 1s 0 0 552.82518 0 87 567.00000 552.82518 2.50% - 1s 0 0 552.85098 0 89 567.00000 552.85098 2.50% - 1s 0 0 552.89560 0 84 567.00000 552.89560 2.49% - 1s 0 0 552.89703 0 86 567.00000 552.89703 2.49% - 1s 0 0 552.90678 0 84 567.00000 552.90678 2.49% - 1s 0 0 552.91235 0 84 567.00000 552.91235 2.48% - 1s 0 0 552.91801 0 89 567.00000 552.91801 2.48% - 1s 0 0 552.93053 0 89 567.00000 552.93053 2.48% - 1s 0 0 552.93116 0 89 567.00000 552.93116 2.48% - 1s 0 0 552.93116 0 89 567.00000 552.93116 2.48% - 2s 0 2 552.95864 0 89 567.00000 552.95864 2.48% - 2s 603 323 560.97436 10 56 567.00000 556.40000 1.87% 13.6 5s * 1440 420 28 566.0000000 558.55342 1.32% 13.4 9s 1795 455 564.77778 24 37 566.00000 559.37742 1.17% 13.3 10s 4700 360 565.00000 25 42 566.00000 562.91304 0.55% 11.9 15s Cutting planes: Gomory: 6 Zero half: 13 Explored 5387 nodes (62292 simplex iterations) in 15.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (35, 51), (38, 45), (6, 50), (41, 43), (10, 50), (10, 51), (11, 40), (11, 31), (16, 38), (16, 46), (43, 45), (20, 41), (20, 42), (14, 19), (14, 42), (31, 35)] Optimize a model with 767 rows, 1275 columns and 137580 nonzeros Presolve time: 0.08s Presolved: 767 rows, 1275 columns, 137580 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 570.0000000 550.84524 3.36% - 0s 0 0 551.50986 0 62 570.00000 551.50986 3.24% - 0s 0 0 551.50986 0 56 570.00000 551.50986 3.24% - 0s 0 0 551.80458 0 63 570.00000 551.80458 3.19% - 0s 0 0 551.97037 0 66 570.00000 551.97037 3.16% - 0s 0 0 552.14105 0 67 570.00000 552.14105 3.13% - 0s 0 0 552.19617 0 69 570.00000 552.19617 3.12% - 0s 0 0 552.22679 0 70 570.00000 552.22679 3.12% - 0s 0 0 552.24995 0 74 570.00000 552.24995 3.11% - 0s 0 0 552.26283 0 74 570.00000 552.26283 3.11% - 0s 0 0 552.29942 0 75 570.00000 552.29942 3.11% - 0s 0 0 552.30974 0 78 570.00000 552.30974 3.10% - 0s 0 0 552.32204 0 78 570.00000 552.32204 3.10% - 0s 0 0 552.32537 0 79 570.00000 552.32537 3.10% - 0s 0 0 552.34487 0 76 570.00000 552.34487 3.10% - 1s 0 0 552.39129 0 71 570.00000 552.39129 3.09% - 1s 0 0 552.40350 0 79 570.00000 552.40350 3.09% - 1s 0 0 552.40754 0 80 570.00000 552.40754 3.09% - 1s 0 0 552.41370 0 74 570.00000 552.41370 3.09% - 1s 0 0 552.43029 0 81 570.00000 552.43029 3.08% - 1s 0 0 552.51136 0 72 570.00000 552.51136 3.07% - 1s 0 0 552.51901 0 78 570.00000 552.51901 3.07% - 1s 0 0 552.59483 0 76 570.00000 552.59483 3.05% - 1s 0 0 552.59839 0 83 570.00000 552.59839 3.05% - 1s 0 0 552.61001 0 85 570.00000 552.61001 3.05% - 1s 0 0 552.65101 0 76 570.00000 552.65101 3.04% - 1s 0 0 552.65734 0 80 570.00000 552.65734 3.04% - 1s 0 0 552.66169 0 79 570.00000 552.66169 3.04% - 1s 0 0 552.66893 0 85 570.00000 552.66893 3.04% - 1s 0 0 552.67426 0 85 570.00000 552.67426 3.04% - 1s 0 0 552.67595 0 84 570.00000 552.67595 3.04% - 1s 0 0 552.67923 0 83 570.00000 552.67923 3.04% - 1s 0 0 552.69762 0 86 570.00000 552.69762 3.04% - 1s 0 0 552.71214 0 86 570.00000 552.71214 3.03% - 1s 0 0 552.72148 0 81 570.00000 552.72148 3.03% - 1s 0 0 552.72681 0 84 570.00000 552.72681 3.03% - 1s 0 0 552.72791 0 86 570.00000 552.72791 3.03% - 1s 0 0 552.72807 0 86 570.00000 552.72807 3.03% - 1s 0 0 552.72807 0 85 570.00000 552.72807 3.03% - 2s H 0 0 567.0000000 552.72807 2.52% - 2s 0 2 552.72871 0 85 567.00000 552.72871 2.52% - 2s 601 323 559.25000 7 62 567.00000 556.15000 1.91% 12.4 5s 1497 478 562.00000 27 36 567.00000 557.91892 1.60% 13.7 10s * 3236 869 31 566.0000000 559.89130 1.08% 12.8 13s 4009 886 564.90476 34 35 566.00000 560.50000 0.97% 12.8 15s 6531 639 cutoff 24 566.00000 562.41096 0.63% 12.5 20s Cutting planes: Gomory: 8 MIR: 2 Zero half: 14 Explored 7999 nodes (96027 simplex iterations) in 22.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(34, 40), (34, 46), (36, 37), (9, 27), (11, 40), (11, 31), (16, 46), (21, 36), (21, 30), (22, 35), (22, 30), (4, 37), (4, 29), (27, 32), (29, 32), (31, 35)] Optimize a model with 768 rows, 1275 columns and 137716 nonzeros Presolve time: 0.08s Presolved: 768 rows, 1275 columns, 137716 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 569.0000000 550.84524 3.19% - 0s 0 0 551.50986 0 62 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 56 569.00000 551.50986 3.07% - 0s 0 0 551.50986 0 63 569.00000 551.50986 3.07% - 0s H 0 0 567.0000000 551.50986 2.73% - 0s 0 0 551.84764 0 70 567.00000 551.84764 2.67% - 0s 0 0 551.91754 0 69 567.00000 551.91754 2.66% - 0s 0 0 551.94033 0 70 567.00000 551.94033 2.66% - 0s 0 0 551.99370 0 76 567.00000 551.99370 2.65% - 0s 0 0 552.01337 0 71 567.00000 552.01337 2.64% - 0s 0 0 552.02233 0 76 567.00000 552.02233 2.64% - 0s 0 0 552.04287 0 76 567.00000 552.04287 2.64% - 0s 0 0 552.05516 0 73 567.00000 552.05516 2.64% - 0s 0 0 552.09142 0 80 567.00000 552.09142 2.63% - 0s 0 0 552.17436 0 75 567.00000 552.17436 2.61% - 0s 0 0 552.20932 0 80 567.00000 552.20932 2.61% - 0s 0 0 552.23537 0 71 567.00000 552.23537 2.60% - 0s 0 0 552.23935 0 79 567.00000 552.23935 2.60% - 0s 0 0 552.24338 0 79 567.00000 552.24338 2.60% - 1s 0 0 552.35696 0 82 567.00000 552.35696 2.58% - 1s 0 0 552.38814 0 81 567.00000 552.38814 2.58% - 1s 0 0 552.44372 0 86 567.00000 552.44372 2.57% - 1s 0 0 552.47045 0 84 567.00000 552.47045 2.56% - 1s 0 0 552.48651 0 82 567.00000 552.48651 2.56% - 1s 0 0 552.48958 0 80 567.00000 552.48958 2.56% - 1s 0 0 552.53255 0 82 567.00000 552.53255 2.55% - 1s 0 0 552.59495 0 79 567.00000 552.59495 2.54% - 1s 0 0 552.67213 0 79 567.00000 552.67213 2.53% - 1s 0 0 552.76886 0 84 567.00000 552.76886 2.51% - 1s 0 0 552.77338 0 87 567.00000 552.77338 2.51% - 1s 0 0 552.78717 0 85 567.00000 552.78717 2.51% - 1s 0 0 552.79007 0 85 567.00000 552.79007 2.51% - 1s 0 0 552.80012 0 86 567.00000 552.80012 2.50% - 1s 0 0 552.81434 0 88 567.00000 552.81434 2.50% - 1s 0 0 552.83310 0 88 567.00000 552.83310 2.50% - 1s 0 0 552.84974 0 87 567.00000 552.84974 2.50% - 1s 0 0 552.87352 0 86 567.00000 552.87352 2.49% - 1s 0 0 552.87972 0 90 567.00000 552.87972 2.49% - 1s 0 2 552.88668 0 90 567.00000 552.88668 2.49% - 2s 608 311 559.02632 9 82 567.00000 556.75000 1.81% 12.5 5s 1986 563 562.98485 19 55 567.00000 558.18421 1.55% 12.5 10s * 3561 913 29 566.0000000 559.72727 1.11% 12.2 13s 4581 1016 564.65000 26 51 566.00000 560.66667 0.94% 12.0 15s 7544 526 564.52941 25 45 566.00000 563.21687 0.49% 11.6 20s Cutting planes: Gomory: 6 Zero half: 10 Mod-K: 1 Explored 8386 nodes (94187 simplex iterations) in 21.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.660000000000e+02, best bound 5.660000000000e+02, gap 0.0% adding cut for [(2, 23), (4, 29), (4, 37), (5, 18), (5, 19), (9, 23), (9, 32), (11, 31), (11, 40), (16, 38), (16, 46), (18, 38), (21, 30), (21, 36), (22, 30), (22, 35), (29, 32), (31, 35), (34, 40), (34, 46), (36, 37)] Optimize a model with 769 rows, 1275 columns and 137947 nonzeros Presolve time: 0.08s Presolved: 769 rows, 1275 columns, 137947 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1275 integer (1225 binary) Found heuristic solution: objective 1672.0000000 Root relaxation: objective 5.508452e+02, 138 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 550.84524 0 56 1672.00000 550.84524 67.1% - 0s Another try with MIP start H 0 0 571.0000000 550.84524 3.53% - 0s 0 0 551.50986 0 62 571.00000 551.50986 3.41% - 0s 0 0 551.50986 0 56 571.00000 551.50986 3.41% - 0s 0 0 551.80458 0 63 571.00000 551.80458 3.36% - 0s 0 0 551.97037 0 66 571.00000 551.97037 3.33% - 0s 0 0 552.14105 0 67 571.00000 552.14105 3.30% - 0s 0 0 552.18750 0 70 571.00000 552.18750 3.29% - 0s 0 0 552.21674 0 72 571.00000 552.21674 3.29% - 0s 0 0 552.26031 0 72 571.00000 552.26031 3.28% - 0s 0 0 552.29309 0 71 571.00000 552.29309 3.28% - 0s 0 0 552.30010 0 76 571.00000 552.30010 3.27% - 0s 0 0 552.31557 0 75 571.00000 552.31557 3.27% - 0s 0 0 552.38704 0 67 571.00000 552.38704 3.26% - 0s 0 0 552.39662 0 72 571.00000 552.39662 3.26% - 0s 0 0 552.42024 0 62 571.00000 552.42024 3.25% - 1s 0 0 552.42024 0 66 571.00000 552.42024 3.25% - 1s 0 0 552.42626 0 76 571.00000 552.42626 3.25% - 1s 0 0 552.45007 0 70 571.00000 552.45007 3.25% - 1s 0 0 552.46633 0 75 571.00000 552.46633 3.25% - 1s 0 0 552.46892 0 74 571.00000 552.46892 3.25% - 1s 0 0 552.47002 0 81 571.00000 552.47002 3.25% - 1s 0 0 552.47134 0 83 571.00000 552.47134 3.24% - 1s 0 0 552.48083 0 73 571.00000 552.48083 3.24% - 1s 0 0 552.49003 0 74 571.00000 552.49003 3.24% - 1s 0 0 552.50137 0 80 571.00000 552.50137 3.24% - 1s 0 0 552.51261 0 80 571.00000 552.51261 3.24% - 1s 0 0 552.52696 0 80 571.00000 552.52696 3.24% - 1s 0 0 552.52696 0 80 571.00000 552.52696 3.24% - 2s 0 2 552.54086 0 80 571.00000 552.54086 3.23% - 2s H 57 35 567.0000000 554.30742 2.24% 12.4 3s 607 345 561.75500 20 81 567.00000 555.99435 1.94% 11.7 5s 2683 726 566.00000 26 39 567.00000 559.45455 1.33% 12.3 10s * 3075 773 30 566.0000000 559.80000 1.10% 12.1 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 3758 nodes (45289 simplex iterations) in 12.01 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective 5.660000000000e+02, best bound 5.610000000000e+02, gap 0.8834% Gurobi 5.0.1 (linux64) logging started Fri Dec 7 09:47:16 2012