Optimize a model with 76 rows, 2850 columns and 5700 nonzeros Presolve time: 0.01s Presolved: 76 rows, 2850 columns, 5700 nonzeros Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.395000e+02, 105 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 839.50000 0 6 2906.00000 839.50000 71.1% - 0s H 0 0 848.0000000 839.50000 1.00% - 0s 0 0 839.50000 0 6 848.00000 839.50000 1.00% - 0s 0 0 839.50000 0 6 848.00000 839.50000 1.00% - 0s * 0 0 0 840.0000000 840.00000 0.0% - 0s Cutting planes: Gomory: 2 Cover: 2 MIR: 4 Zero half: 2 Explored 0 nodes (229 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.400000000000e+02, best bound 8.400000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 17), (4, 45), (6, 16), (6, 38), (9, 36), (10, 33), (10, 40), (11, 32), (11, 59), (14, 55), (14, 58), (16, 58), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (30, 49), (32, 56), (33, 45), (34, 64), (34, 74), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (59, 73), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (12, 39), (12, 54), (15, 54), (15, 60), (60, 67)] Optimize a model with 78 rows, 2850 columns and 6946 nonzeros Presolve time: 0.01s Presolved: 78 rows, 2850 columns, 6946 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.525000e+02, 110 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 852.50000 0 8 2906.00000 852.50000 70.7% - 0s Another try with MIP start H 0 0 889.0000000 852.50000 4.11% - 0s 0 0 853.00000 0 6 889.00000 853.00000 4.05% - 0s 0 0 853.00000 0 12 889.00000 853.00000 4.05% - 0s H 0 0 870.0000000 853.00000 1.95% - 0s 0 0 853.00000 0 8 870.00000 853.00000 1.95% - 0s 0 2 853.50000 0 8 870.00000 853.50000 1.90% - 0s H 1 2 857.0000000 853.50000 0.41% 9.0 0s H 3 3 856.0000000 853.50000 0.29% 3.0 0s H 3 3 855.0000000 853.50000 0.18% 3.0 0s * 5 4 14 854.0000000 854.00000 0.0% 1.8 0s Cutting planes: Gomory: 3 MIR: 1 Mod-K: 2 Explored 6 nodes (370 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.540000000000e+02, best bound 8.540000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 59), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (63, 74)] adding cut for [(6, 16), (6, 38), (8, 36), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (29, 62), (29, 75), (30, 46), (30, 49), (36, 54), (37, 48), (37, 70), (49, 75), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (12, 66), (12, 67)] Optimize a model with 81 rows, 2850 columns and 7652 nonzeros Presolve time: 0.01s Presolved: 81 rows, 2850 columns, 7652 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.550000e+02, 129 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 855.00000 0 14 2906.00000 855.00000 70.6% - 0s Another try with MIP start H 0 0 898.0000000 855.00000 4.79% - 0s 0 0 855.00000 0 28 898.00000 855.00000 4.79% - 0s 0 0 855.50000 0 24 898.00000 855.50000 4.73% - 0s H 0 0 861.0000000 855.50000 0.64% - 0s 0 0 855.50000 0 30 861.00000 855.50000 0.64% - 0s 0 0 855.50000 0 26 861.00000 855.50000 0.64% - 0s 0 0 855.50000 0 26 861.00000 855.50000 0.64% - 0s 0 0 855.50000 0 16 861.00000 855.50000 0.64% - 0s 0 0 855.50000 0 26 861.00000 855.50000 0.64% - 0s 0 0 855.60000 0 33 861.00000 855.60000 0.63% - 0s 0 0 855.60000 0 39 861.00000 855.60000 0.63% - 0s 0 0 855.61538 0 38 861.00000 855.61538 0.63% - 0s 0 0 855.63158 0 44 861.00000 855.63158 0.62% - 0s 0 0 855.66667 0 23 861.00000 855.66667 0.62% - 0s 0 0 855.66667 0 27 861.00000 855.66667 0.62% - 0s 0 0 855.66667 0 25 861.00000 855.66667 0.62% - 0s H 0 0 857.0000000 855.66667 0.16% - 0s H 0 0 856.0000000 855.66667 0.04% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 4 Explored 0 nodes (344 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.560000000000e+02, best bound 8.560000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 66), (12, 54), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 63), (3, 75), (34, 64), (34, 74), (17, 64), (29, 75), (29, 63)] Optimize a model with 83 rows, 2850 columns and 8723 nonzeros Presolve time: 0.01s Presolved: 83 rows, 2850 columns, 8723 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.603333e+02, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 860.33333 0 13 2906.00000 860.33333 70.4% - 0s Another try with MIP start H 0 0 863.0000000 860.33333 0.31% - 0s H 0 0 861.0000000 860.33333 0.08% - 0s Explored 0 nodes (134 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.610000000000e+02, best bound 8.610000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (12, 54), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (30, 46), (36, 54), (37, 48), (37, 70), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(34, 64), (34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 62), (29, 63), (17, 50), (3, 75), (25, 50), (25, 57), (22, 75), (22, 62), (23, 65), (23, 63), (24, 64), (24, 57)] adding cut for [(32, 66), (11, 32), (11, 39), (39, 66)] adding cut for [(26, 56), (26, 51), (19, 56), (19, 51)] Optimize a model with 87 rows, 2850 columns and 9178 nonzeros Presolve time: 0.01s Presolved: 87 rows, 2850 columns, 9178 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.620000e+02, 137 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 862.0000000 862.00000 0.0% - 0s Explored 0 nodes (137 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.620000000000e+02, best bound 8.620000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 30), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (17, 64), (19, 25), (19, 51), (20, 55), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (30, 46), (32, 56), (34, 64), (34, 74), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (66, 67)] adding cut for [(37, 38), (37, 70), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72)] adding cut for [(48, 49), (49, 75), (22, 48), (22, 75)] adding cut for [(29, 63), (29, 62), (23, 63), (23, 62)] Optimize a model with 91 rows, 2850 columns and 9772 nonzeros Presolve time: 0.01s Presolved: 91 rows, 2850 columns, 9772 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.638333e+02, 140 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 863.83333 0 30 2906.00000 863.83333 70.3% - 0s Another try with MIP start H 0 0 864.0000000 863.83333 0.02% - 0s Explored 0 nodes (146 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.640000000000e+02, best bound 8.640000000000e+02, gap 0.0% adding cut for [(3, 75), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (34, 64), (37, 48), (37, 70), (39, 66), (50, 57), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (29, 62), (29, 63), (23, 65), (23, 62), (63, 74)] adding cut for [(30, 49), (6, 49), (6, 30)] Optimize a model with 94 rows, 2850 columns and 10415 nonzeros Presolve time: 0.01s Presolved: 94 rows, 2850 columns, 10415 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.650000e+02, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 865.00000 0 24 2906.00000 865.00000 70.2% - 0s Another try with MIP start H 0 0 925.0000000 865.00000 6.49% - 0s 0 0 865.50000 0 24 925.00000 865.50000 6.43% - 0s 0 0 865.64706 0 40 925.00000 865.64706 6.42% - 0s H 0 0 866.0000000 865.64706 0.04% - 0s Cutting planes: Zero half: 2 Explored 0 nodes (172 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.660000000000e+02, best bound 8.660000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 30), (6, 49), (8, 36), (12, 54), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 57), (24, 64), (28, 58), (29, 63), (29, 75), (34, 64), (34, 74), (36, 54), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 56), (33, 45), (4, 45), (19, 51), (19, 25), (39, 66), (39, 59), (40, 73), (10, 33), (10, 40), (11, 32), (11, 66), (17, 50), (25, 50), (26, 51), (26, 56), (59, 73)] Optimize a model with 96 rows, 2850 columns and 11348 nonzeros Presolve time: 0.01s Presolved: 96 rows, 2850 columns, 11348 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.670000e+02, 155 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 867.00000 0 47 2906.00000 867.00000 70.2% - 0s Another try with MIP start H 0 0 921.0000000 867.00000 5.86% - 0s 0 0 867.52381 0 37 921.00000 867.52381 5.81% - 0s H 0 0 869.0000000 867.52381 0.17% - 0s 0 0 867.52381 0 39 869.00000 867.52381 0.17% - 0s 0 0 867.52381 0 15 869.00000 867.52381 0.17% - 0s 0 0 868.00000 0 26 869.00000 868.00000 0.12% - 0s 0 0 868.00000 0 16 869.00000 868.00000 0.12% - 0s 0 0 868.00000 0 32 869.00000 868.00000 0.12% - 0s 0 0 868.00000 0 21 869.00000 868.00000 0.12% - 0s 0 0 868.00000 0 29 869.00000 868.00000 0.12% - 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 0 nodes (315 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.690000000000e+02, best bound 8.690000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (9, 36), (11, 32), (11, 39), (12, 60), (12, 67), (15, 20), (15, 60), (19, 25), (19, 51), (20, 54), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 64), (34, 74), (36, 54), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (66, 67)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (28, 53), (14, 55), (14, 58), (61, 71), (61, 72), (48, 49), (53, 55), (62, 70), (22, 75), (22, 48), (21, 71), (21, 38), (29, 75), (29, 62), (37, 70), (37, 72)] Optimize a model with 98 rows, 2850 columns and 12023 nonzeros Presolve time: 0.01s Presolved: 98 rows, 2850 columns, 12023 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.687500e+02, 157 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 868.75000 0 28 2906.00000 868.75000 70.1% - 0s Another try with MIP start H 0 0 875.0000000 868.75000 0.71% - 0s H 0 0 871.0000000 868.75000 0.26% - 0s 0 0 869.17647 0 42 871.00000 869.17647 0.21% - 0s 0 0 869.17647 0 23 871.00000 869.17647 0.21% - 0s 0 0 869.43452 0 45 871.00000 869.43452 0.18% - 0s 0 0 869.44118 0 49 871.00000 869.44118 0.18% - 0s 0 1 869.45000 0 49 871.00000 869.45000 0.18% - 0s H 1 1 870.0000000 869.45000 0.06% 0.0 0s Cutting planes: Gomory: 3 Zero half: 3 Explored 1 nodes (326 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.700000000000e+02, best bound 8.700000000000e+02, gap 0.0% adding cut for [(3, 63), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 29), (23, 63), (26, 56), (29, 62), (32, 56), (37, 70), (37, 72), (39, 66), (40, 73), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(34, 64), (34, 74), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (2, 74), (2, 44), (17, 64), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (42, 65), (42, 57)] Optimize a model with 100 rows, 2850 columns and 12641 nonzeros Presolve time: 0.01s Presolved: 100 rows, 2850 columns, 12641 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.688824e+02, 196 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 868.88235 0 44 2906.00000 868.88235 70.1% - 0s Another try with MIP start H 0 0 884.0000000 868.88235 1.71% - 0s H 0 0 882.0000000 868.88235 1.49% - 0s 0 0 869.41176 0 51 882.00000 869.41176 1.43% - 0s 0 0 869.41176 0 44 882.00000 869.41176 1.43% - 0s 0 0 869.78131 0 63 882.00000 869.78131 1.39% - 0s 0 0 869.78131 0 65 882.00000 869.78131 1.39% - 0s 0 0 869.81395 0 66 882.00000 869.81395 1.38% - 0s H 0 0 875.0000000 869.81395 0.59% - 0s 0 0 869.81395 0 68 875.00000 869.81395 0.59% - 0s H 0 0 874.0000000 869.81395 0.48% - 0s 0 2 869.86227 0 68 874.00000 869.86227 0.47% - 0s * 23 9 21 871.0000000 871.00000 0.0% 19.3 0s Cutting planes: Gomory: 10 Zero half: 3 Explored 24 nodes (863 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.710000000000e+02, best bound 8.710000000000e+02, gap 0.0% adding cut for [(34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (14, 58), (14, 28), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (23, 65), (23, 62), (28, 53), (62, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (17, 64), (39, 66), (9, 55), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (24, 64), (24, 57), (50, 57), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(3, 63), (6, 49), (6, 30), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63)] Optimize a model with 103 rows, 2850 columns and 13097 nonzeros Presolve time: 0.02s Presolved: 103 rows, 2850 columns, 13097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.692083e+02, 202 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 869.20833 0 59 2906.00000 869.20833 70.1% - 0s Another try with MIP start H 0 0 877.0000000 869.20833 0.89% - 0s H 0 0 872.0000000 869.20833 0.32% - 0s H 0 0 871.0000000 869.20833 0.21% - 0s 0 0 869.92593 0 61 871.00000 869.92593 0.12% - 0s 0 0 870.00000 0 40 871.00000 870.00000 0.11% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (304 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.710000000000e+02, best bound 8.710000000000e+02, gap 0.0% adding cut for [(9, 36), (12, 54), (12, 66), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 29), (23, 62), (29, 63), (34, 74), (36, 54), (37, 70), (37, 72), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(32, 56), (19, 51), (19, 25), (39, 59), (11, 32), (11, 39), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 64), (2, 44), (42, 65), (42, 57), (43, 65), (43, 44), (24, 64), (24, 57)] adding cut for [(3, 75), (6, 49), (6, 30), (48, 49), (22, 75), (22, 48), (30, 46)] Optimize a model with 107 rows, 2850 columns and 13533 nonzeros Presolve time: 0.02s Presolved: 107 rows, 2850 columns, 13533 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.692083e+02, 203 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 869.20833 0 59 2906.00000 869.20833 70.1% - 0s Another try with MIP start H 0 0 877.0000000 869.20833 0.89% - 0s H 0 0 872.0000000 869.20833 0.32% - 0s 0 0 869.69054 0 66 872.00000 869.69054 0.26% - 0s 0 0 869.69054 0 52 872.00000 869.69054 0.26% - 0s 0 0 869.94813 0 60 872.00000 869.94813 0.24% - 0s 0 0 870.23893 0 63 872.00000 870.23893 0.20% - 0s 0 0 870.24846 0 66 872.00000 870.24846 0.20% - 0s 0 0 870.29312 0 57 872.00000 870.29312 0.20% - 0s 0 0 870.29813 0 55 872.00000 870.29813 0.20% - 0s 0 2 870.31384 0 55 872.00000 870.31384 0.19% - 0s Cutting planes: Gomory: 14 Clique: 1 Zero half: 1 Explored 20 nodes (557 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.720000000000e+02, best bound 8.720000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (6, 30), (6, 49), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (30, 46), (32, 56), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(33, 41), (33, 45), (4, 45), (40, 73), (10, 40), (10, 41), (59, 73)] Optimize a model with 109 rows, 2850 columns and 14642 nonzeros Presolve time: 0.02s Presolved: 109 rows, 2850 columns, 14642 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.718696e+02, 222 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 871.86957 0 50 2906.00000 871.86957 70.0% - 0s Another try with MIP start H 0 0 876.0000000 871.86957 0.47% - 0s H 0 0 875.0000000 871.86957 0.36% - 0s 0 0 872.38462 0 53 875.00000 872.38462 0.30% - 0s 0 0 872.38462 0 43 875.00000 872.38462 0.30% - 0s 0 0 872.56959 0 49 875.00000 872.56959 0.28% - 0s 0 0 872.58203 0 53 875.00000 872.58203 0.28% - 0s 0 0 872.58203 0 56 875.00000 872.58203 0.28% - 0s 0 0 872.60606 0 50 875.00000 872.60606 0.27% - 0s 0 0 872.60606 0 50 875.00000 872.60606 0.27% - 0s 0 2 872.64103 0 50 875.00000 872.64103 0.27% - 0s * 12 0 9 874.0000000 874.00000 0.0% 6.2 0s Cutting planes: Gomory: 3 Zero half: 3 Explored 13 nodes (484 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.740000000000e+02, best bound 8.740000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (9, 36), (12, 54), (12, 66), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (28, 58), (36, 54), (37, 48), (37, 70), (48, 49), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(32, 56), (33, 45), (4, 45), (19, 51), (19, 25), (39, 59), (40, 73), (10, 33), (10, 40), (11, 32), (11, 39), (24, 64), (24, 57), (50, 57), (17, 64), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(2, 44), (2, 34), (43, 65), (34, 74), (22, 75), (22, 62), (42, 43), (42, 44), (62, 65), (31, 75)] adding cut for [(29, 63), (23, 63), (23, 29)] Optimize a model with 113 rows, 2850 columns and 15190 nonzeros Presolve time: 0.02s Presolved: 113 rows, 2850 columns, 15190 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.728056e+02, 227 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 872.80556 0 58 2906.00000 872.80556 70.0% - 0s Another try with MIP start H 0 0 880.0000000 872.80556 0.82% - 0s H 0 0 878.0000000 872.80556 0.59% - 0s 0 0 873.64851 0 61 878.00000 873.64851 0.50% - 0s 0 0 873.64851 0 57 878.00000 873.64851 0.50% - 0s 0 0 873.91463 0 62 878.00000 873.91463 0.47% - 0s 0 0 873.93814 0 66 878.00000 873.93814 0.46% - 0s 0 0 873.94477 0 67 878.00000 873.94477 0.46% - 0s 0 0 873.98333 0 73 878.00000 873.98333 0.46% - 0s H 0 0 877.0000000 873.98333 0.34% - 0s 0 0 873.98333 0 75 877.00000 873.98333 0.34% - 0s 0 2 874.25862 0 75 877.00000 874.25862 0.31% - 0s H 19 11 875.0000000 874.50053 0.06% 19.5 0s Cutting planes: Gomory: 7 Zero half: 1 Explored 19 nodes (862 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.750000000000e+02, best bound 8.750000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 45), (10, 33), (10, 40), (17, 64), (19, 25), (19, 51), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (34, 64), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(3, 63), (37, 70), (37, 72), (14, 58), (14, 28), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (29, 62), (29, 63), (62, 70)] adding cut for [(66, 67), (39, 66), (9, 55), (11, 39), (11, 59), (12, 67), (12, 60), (15, 20), (15, 60), (20, 55)] Optimize a model with 116 rows, 2850 columns and 15650 nonzeros Presolve time: 0.02s Presolved: 116 rows, 2850 columns, 15650 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.728922e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 872.89216 0 64 2906.00000 872.89216 70.0% - 0s Another try with MIP start H 0 0 878.0000000 872.89216 0.58% - 0s 0 0 873.98592 0 56 878.00000 873.98592 0.46% - 0s 0 0 873.98592 0 65 878.00000 873.98592 0.46% - 0s 0 0 874.11949 0 71 878.00000 874.11949 0.44% - 0s 0 0 874.13446 0 68 878.00000 874.13446 0.44% - 0s 0 0 874.14374 0 77 878.00000 874.14374 0.44% - 0s H 0 0 876.0000000 874.14374 0.21% - 0s 0 2 874.15538 0 73 876.00000 874.15538 0.21% - 0s * 9 0 6 875.0000000 875.00000 0.0% 10.3 0s Cutting planes: Gomory: 2 Zero half: 7 Explored 10 nodes (605 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.750000000000e+02, best bound 8.750000000000e+02, gap 0.0% adding cut for [(4, 45), (9, 55), (10, 33), (10, 40), (11, 32), (11, 59), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (32, 56), (33, 45), (37, 70), (37, 72), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (12, 67), (12, 39), (39, 66)] adding cut for [(2, 74), (2, 34), (34, 74)] adding cut for [(20, 60), (15, 20), (15, 60)] Optimize a model with 120 rows, 2850 columns and 16365 nonzeros Presolve time: 0.02s Presolved: 120 rows, 2850 columns, 16365 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.732500e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 873.25000 0 60 2906.00000 873.25000 70.0% - 0s Another try with MIP start H 0 0 893.0000000 873.25000 2.21% - 0s H 0 0 887.0000000 873.25000 1.55% - 0s 0 0 873.65172 0 65 887.00000 873.65172 1.50% - 0s 0 0 873.65172 0 60 887.00000 873.65172 1.50% - 0s 0 0 874.07965 0 68 887.00000 874.07965 1.46% - 0s 0 0 874.08247 0 72 887.00000 874.08247 1.46% - 0s 0 0 874.10418 0 78 887.00000 874.10418 1.45% - 0s 0 0 874.12156 0 77 887.00000 874.12156 1.45% - 0s 0 0 874.15000 0 79 887.00000 874.15000 1.45% - 0s 0 0 874.17011 0 84 887.00000 874.17011 1.45% - 0s 0 0 874.17011 0 86 887.00000 874.17011 1.45% - 0s H 0 0 877.0000000 874.17011 0.32% - 0s 0 2 874.19302 0 86 877.00000 874.19302 0.32% - 0s * 19 3 7 876.0000000 874.71739 0.15% 9.4 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 23 nodes (809 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.760000000000e+02, best bound 8.760000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (3, 75), (6, 49), (6, 58), (11, 32), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 63), (32, 56), (37, 70), (37, 72), (39, 59), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70)] Optimize a model with 121 rows, 2850 columns and 17400 nonzeros Presolve time: 0.02s Presolved: 121 rows, 2850 columns, 17400 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.742775e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 874.27751 0 68 2906.00000 874.27751 69.9% - 0s Another try with MIP start H 0 0 883.0000000 874.27751 0.99% - 0s 0 0 874.73589 0 68 883.00000 874.73589 0.94% - 0s 0 0 874.73589 0 68 883.00000 874.73589 0.94% - 0s 0 0 874.77101 0 66 883.00000 874.77101 0.93% - 0s 0 0 874.83361 0 74 883.00000 874.83361 0.92% - 0s 0 0 874.84644 0 78 883.00000 874.84644 0.92% - 0s 0 0 874.88827 0 68 883.00000 874.88827 0.92% - 0s 0 0 874.88885 0 71 883.00000 874.88885 0.92% - 0s 0 0 874.88885 0 71 883.00000 874.88885 0.92% - 0s H 0 0 882.0000000 874.88885 0.81% - 0s 0 2 874.89585 0 71 882.00000 874.89585 0.81% - 0s * 18 14 13 878.0000000 875.50055 0.28% 12.6 0s * 57 9 11 877.0000000 875.60154 0.16% 8.4 0s Cutting planes: Gomory: 3 Zero half: 5 Explored 67 nodes (975 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.770000000000e+02, best bound 8.770000000000e+02, gap 0.0% adding cut for [(32, 66), (66, 67), (36, 54), (33, 51), (33, 41), (39, 59), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (19, 51), (19, 56), (26, 56), (59, 73)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (9, 20), (14, 55), (14, 58), (48, 49), (20, 55), (22, 48), (22, 62), (21, 71), (21, 38), (61, 71), (61, 72), (62, 70), (37, 70), (37, 72)] adding cut for [(34, 64), (34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 75), (29, 63), (17, 50), (25, 50), (25, 57), (23, 65), (23, 63), (24, 64), (24, 57), (31, 75)] Optimize a model with 124 rows, 2850 columns and 17914 nonzeros Presolve time: 0.02s Presolved: 124 rows, 2850 columns, 17914 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.744902e+02, 233 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 874.49020 0 70 2906.00000 874.49020 69.9% - 0s Another try with MIP start H 0 0 881.0000000 874.49020 0.74% - 0s 0 0 875.05081 0 64 881.00000 875.05081 0.68% - 0s 0 0 875.05081 0 67 881.00000 875.05081 0.68% - 0s 0 0 875.27921 0 71 881.00000 875.27921 0.65% - 0s 0 0 875.28527 0 73 881.00000 875.28527 0.65% - 0s 0 0 875.29545 0 78 881.00000 875.29545 0.65% - 0s 0 0 875.31644 0 77 881.00000 875.31644 0.65% - 0s 0 0 875.32762 0 80 881.00000 875.32762 0.64% - 0s 0 0 875.32960 0 83 881.00000 875.32960 0.64% - 0s 0 2 875.33032 0 83 881.00000 875.33032 0.64% - 0s * 13 8 10 878.0000000 875.80078 0.25% 13.7 0s Cutting planes: Gomory: 1 Zero half: 10 Explored 55 nodes (1030 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.780000000000e+02, best bound 8.780000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (26, 56), (28, 58), (29, 62), (29, 75), (31, 49), (32, 73), (33, 45), (33, 51), (37, 70), (37, 72), (39, 66), (40, 73), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 44), (2, 34), (43, 65), (34, 74), (23, 65), (23, 63), (42, 43), (42, 44), (63, 74)] adding cut for [(24, 57), (24, 50), (25, 57), (25, 50)] Optimize a model with 127 rows, 2850 columns and 18697 nonzeros Presolve time: 0.02s Presolved: 127 rows, 2850 columns, 18697 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.747308e+02, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 874.73077 0 73 2906.00000 874.73077 69.9% - 0s Another try with MIP start H 0 0 881.0000000 874.73077 0.71% - 0s 0 0 875.21369 0 76 881.00000 875.21369 0.66% - 0s 0 0 875.21369 0 73 881.00000 875.21369 0.66% - 0s 0 0 875.78409 0 78 881.00000 875.78409 0.59% - 0s 0 0 875.85344 0 89 881.00000 875.85344 0.58% - 0s 0 0 875.94722 0 86 881.00000 875.94722 0.57% - 0s 0 0 875.98758 0 88 881.00000 875.98758 0.57% - 0s 0 0 876.10769 0 84 881.00000 876.10769 0.56% - 0s 0 0 876.13210 0 89 881.00000 876.13210 0.55% - 0s 0 0 876.16160 0 86 881.00000 876.16160 0.55% - 0s 0 0 876.16485 0 90 881.00000 876.16485 0.55% - 0s 0 0 876.16485 0 90 881.00000 876.16485 0.55% - 0s 0 2 876.17293 0 90 881.00000 876.17293 0.55% - 0s * 56 18 25 879.0000000 876.73870 0.26% 10.2 0s * 68 6 11 878.0000000 876.76890 0.14% 9.7 0s Cutting planes: Gomory: 3 MIR: 4 Zero half: 9 Explored 75 nodes (1326 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.780000000000e+02, best bound 8.780000000000e+02, gap 0.0% adding cut for [(4, 45), (16, 38), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (33, 45), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(39, 66), (40, 73), (10, 32), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 53), (14, 55), (15, 20), (15, 60), (20, 55), (59, 73), (60, 67)] Optimize a model with 129 rows, 2850 columns and 19195 nonzeros Presolve time: 0.02s Presolved: 129 rows, 2850 columns, 19195 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.747509e+02, 221 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 874.75085 0 76 2906.00000 874.75085 69.9% - 0s Another try with MIP start H 0 0 885.0000000 874.75085 1.16% - 0s H 0 0 883.0000000 874.75085 0.93% - 0s 0 0 875.45416 0 75 883.00000 875.45416 0.85% - 0s 0 0 875.45416 0 76 883.00000 875.45416 0.85% - 0s 0 0 875.67239 0 80 883.00000 875.67239 0.83% - 0s 0 0 875.83593 0 84 883.00000 875.83593 0.81% - 0s 0 0 875.90493 0 86 883.00000 875.90493 0.80% - 0s 0 0 875.94133 0 90 883.00000 875.94133 0.80% - 0s 0 0 875.97199 0 87 883.00000 875.97199 0.80% - 0s 0 0 876.03017 0 82 883.00000 876.03017 0.79% - 0s 0 0 876.03017 0 85 883.00000 876.03017 0.79% - 0s 0 2 876.07235 0 85 883.00000 876.07235 0.78% - 0s * 21 11 17 879.0000000 876.60744 0.27% 15.4 0s * 34 3 9 878.0000000 876.63158 0.16% 13.3 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 40 nodes (1038 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.780000000000e+02, best bound 8.780000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 45), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (33, 45), (33, 51), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(39, 66), (40, 73), (9, 20), (10, 32), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (59, 73), (60, 67)] adding cut for [(34, 64), (34, 74), (6, 49), (6, 30), (17, 64), (48, 49), (22, 48), (22, 29), (29, 63), (63, 74)] Optimize a model with 132 rows, 2850 columns and 19776 nonzeros Presolve time: 0.02s Presolved: 132 rows, 2850 columns, 19776 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.750000e+02, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 875.00000 0 54 2906.00000 875.00000 69.9% - 0s Another try with MIP start H 0 0 887.0000000 875.00000 1.35% - 0s 0 0 875.47908 0 78 887.00000 875.47908 1.30% - 0s 0 0 875.47908 0 54 887.00000 875.47908 1.30% - 0s 0 0 875.68305 0 73 887.00000 875.68305 1.28% - 0s 0 0 875.85535 0 82 887.00000 875.85535 1.26% - 0s 0 0 875.88918 0 89 887.00000 875.88918 1.25% - 0s 0 0 875.89936 0 89 887.00000 875.89936 1.25% - 0s 0 0 875.89936 0 89 887.00000 875.89936 1.25% - 0s 0 2 875.93288 0 89 887.00000 875.93288 1.25% - 0s * 13 13 10 880.0000000 876.41623 0.41% 19.0 0s * 28 18 10 879.0000000 876.48057 0.29% 14.7 0s Cutting planes: Gomory: 4 MIR: 1 Zero half: 7 Explored 112 nodes (1736 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.790000000000e+02, best bound 8.790000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 45), (6, 30), (6, 38), (10, 33), (10, 40), (11, 32), (11, 39), (14, 28), (14, 58), (16, 30), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (33, 45), (34, 64), (34, 74), (37, 70), (37, 72), (39, 59), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(66, 67), (8, 54), (9, 55), (12, 66), (12, 54), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 134 rows, 2850 columns and 20724 nonzeros Presolve time: 0.02s Presolved: 134 rows, 2850 columns, 20724 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.755027e+02, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 875.50271 0 75 2906.00000 875.50271 69.9% - 0s Another try with MIP start H 0 0 883.0000000 875.50271 0.85% - 0s H 0 0 881.0000000 875.50271 0.62% - 0s 0 0 876.05888 0 80 881.00000 876.05888 0.56% - 0s 0 0 876.05888 0 75 881.00000 876.05888 0.56% - 0s 0 0 876.44177 0 84 881.00000 876.44177 0.52% - 0s 0 0 876.59155 0 88 881.00000 876.59155 0.50% - 0s 0 0 876.68532 0 88 881.00000 876.68532 0.49% - 0s 0 0 876.70648 0 91 881.00000 876.70648 0.49% - 0s 0 0 876.70967 0 92 881.00000 876.70967 0.49% - 0s 0 0 876.70967 0 92 881.00000 876.70967 0.49% - 0s H 0 0 880.0000000 876.70967 0.37% - 0s 0 2 876.73355 0 92 880.00000 876.73355 0.37% - 0s * 11 6 10 879.0000000 876.90085 0.24% 18.6 0s Cutting planes: Gomory: 7 MIR: 4 Zero half: 11 Explored 56 nodes (1148 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.790000000000e+02, best bound 8.790000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (8, 36), (8, 54), (9, 36), (12, 54), (12, 66), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 70), (37, 70), (37, 72), (48, 49), (60, 67), (61, 71), (61, 72), (66, 67)] adding cut for [(2, 44), (2, 74), (10, 33), (10, 40), (11, 32), (11, 39), (17, 64), (19, 25), (19, 56), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 73), (33, 51), (34, 64), (34, 74), (39, 59), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65)] Optimize a model with 136 rows, 2850 columns and 21349 nonzeros Presolve time: 0.02s Presolved: 136 rows, 2850 columns, 21349 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.765795e+02, 282 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.57950 0 78 2906.00000 876.57950 69.8% - 0s Another try with MIP start H 0 0 890.0000000 876.57950 1.51% - 0s H 0 0 884.0000000 876.57950 0.84% - 0s 0 0 877.10995 0 79 884.00000 877.10995 0.78% - 0s 0 0 877.10995 0 78 884.00000 877.10995 0.78% - 0s 0 0 877.70043 0 76 884.00000 877.70043 0.71% - 0s 0 0 877.78418 0 82 884.00000 877.78418 0.70% - 0s 0 0 877.83357 0 81 884.00000 877.83357 0.70% - 0s 0 0 877.84642 0 81 884.00000 877.84642 0.70% - 0s 0 0 877.87307 0 83 884.00000 877.87307 0.69% - 0s 0 0 877.87490 0 90 884.00000 877.87490 0.69% - 0s 0 0 877.87490 0 88 884.00000 877.87490 0.69% - 0s 0 2 877.88425 0 88 884.00000 877.88425 0.69% - 0s * 8 3 7 879.0000000 878.77189 0.03% 24.5 0s Cutting planes: Gomory: 5 Zero half: 5 Explored 9 nodes (859 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.790000000000e+02, best bound 8.790000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 64), (4, 45), (19, 25), (19, 51), (22, 62), (22, 75), (23, 65), (24, 50), (24, 57), (25, 50), (29, 62), (29, 63), (31, 75), (33, 45), (33, 51), (34, 64), (34, 74), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (9, 55), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 20), (15, 60), (20, 55), (26, 56), (59, 73)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 53), (14, 58), (48, 49), (21, 71), (21, 38), (28, 53), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 139 rows, 2850 columns and 21881 nonzeros Presolve time: 0.02s Presolved: 139 rows, 2850 columns, 21881 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.767125e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.71249 0 77 2906.00000 876.71249 69.8% - 0s Another try with MIP start H 0 0 885.0000000 876.71249 0.94% - 0s 0 0 877.23214 0 85 885.00000 877.23214 0.88% - 0s 0 0 877.23214 0 77 885.00000 877.23214 0.88% - 0s 0 0 877.71856 0 85 885.00000 877.71856 0.82% - 0s 0 0 877.83726 0 89 885.00000 877.83726 0.81% - 0s 0 0 877.91098 0 86 885.00000 877.91098 0.80% - 0s 0 0 877.94915 0 96 885.00000 877.94915 0.80% - 0s 0 0 877.97801 0 91 885.00000 877.97801 0.79% - 0s 0 0 877.98250 0 98 885.00000 877.98250 0.79% - 0s 0 0 877.98250 0 98 885.00000 877.98250 0.79% - 0s H 0 0 883.0000000 877.98250 0.57% - 0s 0 2 877.99946 0 98 883.00000 877.99946 0.57% - 0s H 27 11 881.0000000 878.37567 0.30% 11.1 0s Cutting planes: Gomory: 5 Zero half: 8 Explored 70 nodes (1400 simplex iterations) in 0.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.810000000000e+02, best bound 8.810000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 23), (4, 41), (4, 45), (33, 51), (33, 45), (42, 44), (42, 57), (43, 65), (43, 44), (34, 64), (17, 64), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57)] adding cut for [(3, 75), (6, 38), (6, 49), (29, 63), (29, 62), (48, 49), (21, 38), (21, 71), (22, 75), (22, 48), (63, 74), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 56), (39, 66), (8, 54), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (40, 73), (20, 54), (26, 56), (59, 73), (60, 67)] Optimize a model with 142 rows, 2850 columns and 22324 nonzeros Presolve time: 0.03s Presolved: 142 rows, 2850 columns, 22324 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.767349e+02, 261 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.73494 0 84 2906.00000 876.73494 69.8% - 0s Another try with MIP start H 0 0 887.0000000 876.73494 1.16% - 0s H 0 0 886.0000000 876.73494 1.05% - 0s 0 0 877.29556 0 87 886.00000 877.29556 0.98% - 0s 0 0 877.29556 0 84 886.00000 877.29556 0.98% - 0s 0 0 877.74585 0 81 886.00000 877.74585 0.93% - 0s 0 0 878.07345 0 88 886.00000 878.07345 0.89% - 0s 0 0 878.09836 0 91 886.00000 878.09836 0.89% - 0s 0 0 878.16582 0 85 886.00000 878.16582 0.88% - 0s 0 0 878.19949 0 91 886.00000 878.19949 0.88% - 0s 0 0 878.23128 0 92 886.00000 878.23128 0.88% - 0s 0 0 878.23290 0 88 886.00000 878.23290 0.88% - 0s 0 0 878.23461 0 95 886.00000 878.23461 0.88% - 0s 0 0 878.23461 0 95 886.00000 878.23461 0.88% - 0s 0 2 878.23522 0 95 886.00000 878.23522 0.88% - 0s * 56 30 19 883.0000000 878.77757 0.48% 15.3 0s * 277 43 12 882.0000000 879.91966 0.24% 13.3 0s Cutting planes: Gomory: 4 MIR: 2 Zero half: 14 Explored 348 nodes (4936 simplex iterations) in 0.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.820000000000e+02, best bound 8.820000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 63), (3, 75), (4, 45), (6, 38), (6, 49), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 65), (24, 50), (24, 57), (25, 50), (29, 62), (29, 63), (33, 45), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (39, 66), (8, 36), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (40, 73), (26, 56), (59, 73), (60, 67)] Optimize a model with 144 rows, 2850 columns and 22909 nonzeros Presolve time: 0.03s Presolved: 144 rows, 2850 columns, 22909 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.767349e+02, 278 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.73494 0 84 2906.00000 876.73494 69.8% - 0s Another try with MIP start H 0 0 883.0000000 876.73494 0.71% - 0s 0 0 877.23726 0 84 883.00000 877.23726 0.65% - 0s 0 0 877.23726 0 84 883.00000 877.23726 0.65% - 0s 0 0 877.99091 0 79 883.00000 877.99091 0.57% - 0s 0 0 878.04188 0 86 883.00000 878.04188 0.56% - 0s 0 0 878.12599 0 82 883.00000 878.12599 0.55% - 0s 0 0 878.14290 0 92 883.00000 878.14290 0.55% - 0s 0 0 878.14647 0 88 883.00000 878.14647 0.55% - 0s 0 0 878.16221 0 100 883.00000 878.16221 0.55% - 0s 0 2 878.17435 0 100 883.00000 878.17435 0.55% - 0s Cutting planes: Gomory: 11 Zero half: 11 Explored 514 nodes (6633 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 34), (11, 32), (11, 59), (12, 66), (12, 67), (15, 36), (15, 60), (17, 64), (19, 25), (19, 51), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (34, 64), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67)] adding cut for [(6, 38), (6, 49), (29, 63), (29, 62), (48, 49), (37, 72), (37, 70), (21, 38), (21, 71), (22, 75), (22, 48), (63, 74), (61, 71), (61, 72), (62, 70), (31, 75)] Optimize a model with 146 rows, 2850 columns and 23396 nonzeros Presolve time: 0.03s Presolved: 146 rows, 2850 columns, 23396 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.767349e+02, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.73494 0 84 2906.00000 876.73494 69.8% - 0s Another try with MIP start H 0 0 885.0000000 876.73494 0.93% - 0s 0 0 877.23726 0 84 885.00000 877.23726 0.88% - 0s 0 0 877.23726 0 84 885.00000 877.23726 0.88% - 0s 0 0 877.99091 0 77 885.00000 877.99091 0.79% - 0s 0 0 878.04188 0 84 885.00000 878.04188 0.79% - 0s 0 0 878.12599 0 82 885.00000 878.12599 0.78% - 0s 0 0 878.13894 0 82 885.00000 878.13894 0.78% - 0s 0 0 878.15377 0 97 885.00000 878.15377 0.77% - 0s 0 0 878.17449 0 89 885.00000 878.17449 0.77% - 0s 0 0 878.17625 0 101 885.00000 878.17625 0.77% - 0s 0 0 878.17625 0 100 885.00000 878.17625 0.77% - 0s H 0 0 884.0000000 878.17625 0.66% - 0s 0 2 878.18674 0 100 884.00000 878.18674 0.66% - 0s * 164 71 11 883.0000000 879.17187 0.43% 12.9 0s Cutting planes: Gomory: 10 Zero half: 10 Explored 768 nodes (9595 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (17, 50), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 58), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (53, 55), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (33, 51), (33, 45), (66, 67), (4, 45), (39, 66), (9, 36), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 20), (15, 60), (19, 51), (19, 56), (20, 54), (36, 54), (26, 56)] adding cut for [(48, 49), (22, 48), (22, 49)] Optimize a model with 149 rows, 2850 columns and 23960 nonzeros Presolve time: 0.03s Presolved: 149 rows, 2850 columns, 23960 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.769403e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 876.94029 0 85 2906.00000 876.94029 69.8% - 0s Another try with MIP start H 0 0 900.0000000 876.94029 2.56% - 0s H 0 0 885.0000000 876.94029 0.91% - 0s 0 0 877.45640 0 87 885.00000 877.45640 0.85% - 0s 0 0 877.45640 0 85 885.00000 877.45640 0.85% - 0s 0 0 878.02504 0 85 885.00000 878.02504 0.79% - 0s 0 0 878.33908 0 91 885.00000 878.33908 0.75% - 0s 0 0 878.42894 0 87 885.00000 878.42894 0.74% - 0s 0 0 878.45289 0 89 885.00000 878.45289 0.74% - 0s 0 0 878.46413 0 94 885.00000 878.46413 0.74% - 0s 0 2 878.48653 0 94 885.00000 878.48653 0.74% - 0s * 68 43 28 884.0000000 879.15578 0.55% 10.6 0s * 328 95 19 883.0000000 880.39394 0.30% 11.6 0s Cutting planes: Gomory: 9 MIR: 2 Zero half: 5 Explored 591 nodes (6646 simplex iterations) in 0.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (4, 45), (10, 33), (10, 40), (19, 25), (19, 51), (23, 29), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (32, 56), (32, 73), (33, 45), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (63, 74)] adding cut for [(48, 49), (6, 38), (6, 30), (9, 55), (62, 70), (14, 55), (14, 28), (16, 58), (16, 30), (21, 38), (21, 71), (22, 48), (22, 62), (31, 49), (28, 58), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(36, 54), (39, 66), (11, 66), (11, 59), (12, 67), (12, 39), (15, 20), (15, 60), (20, 54), (60, 67)] Optimize a model with 152 rows, 2850 columns and 24530 nonzeros Presolve time: 0.03s Presolved: 152 rows, 2850 columns, 24530 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.771714e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.17140 0 82 2906.00000 877.17140 69.8% - 0s Another try with MIP start H 0 0 886.0000000 877.17140 1.00% - 0s H 0 0 885.0000000 877.17140 0.88% - 0s 0 0 877.70501 0 80 885.00000 877.70501 0.82% - 0s 0 0 877.70501 0 82 885.00000 877.70501 0.82% - 0s 0 0 878.31154 0 81 885.00000 878.31154 0.76% - 0s 0 0 878.32672 0 84 885.00000 878.32672 0.75% - 0s 0 0 878.46482 0 89 885.00000 878.46482 0.74% - 0s 0 0 878.47481 0 92 885.00000 878.47481 0.74% - 0s 0 0 878.49254 0 96 885.00000 878.49254 0.74% - 0s 0 0 878.49802 0 95 885.00000 878.49802 0.73% - 0s 0 0 878.52017 0 95 885.00000 878.52017 0.73% - 0s 0 0 878.52642 0 94 885.00000 878.52642 0.73% - 0s 0 0 878.53080 0 97 885.00000 878.53080 0.73% - 0s 0 2 878.54450 0 97 885.00000 878.54450 0.73% - 0s * 170 86 22 884.0000000 879.73202 0.48% 12.9 0s * 677 73 10 883.0000000 881.19355 0.20% 11.4 0s Cutting planes: Gomory: 9 MIR: 4 Zero half: 12 Explored 785 nodes (8896 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 64), (4, 17), (4, 45), (10, 40), (10, 51), (17, 64), (19, 25), (19, 56), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (33, 41), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (63, 74)] adding cut for [(6, 16), (6, 38), (8, 54), (11, 32), (11, 39), (12, 39), (12, 54), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 49), (22, 75), (28, 58), (32, 66), (37, 48), (37, 70), (48, 49), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 154 rows, 2850 columns and 25314 nonzeros Presolve time: 0.03s Presolved: 154 rows, 2850 columns, 25314 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.771714e+02, 263 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.17140 0 82 2906.00000 877.17140 69.8% - 0s Another try with MIP start H 0 0 887.0000000 877.17140 1.11% - 0s H 0 0 885.0000000 877.17140 0.88% - 0s 0 0 877.70501 0 80 885.00000 877.70501 0.82% - 0s 0 0 877.70501 0 82 885.00000 877.70501 0.82% - 0s 0 0 878.30981 0 83 885.00000 878.30981 0.76% - 0s 0 0 878.33500 0 85 885.00000 878.33500 0.75% - 0s 0 0 878.43315 0 92 885.00000 878.43315 0.74% - 0s 0 0 878.52604 0 92 885.00000 878.52604 0.73% - 0s 0 0 878.54529 0 90 885.00000 878.54529 0.73% - 0s 0 0 878.56073 0 96 885.00000 878.56073 0.73% - 0s 0 0 878.56623 0 97 885.00000 878.56623 0.73% - 0s 0 0 878.56623 0 97 885.00000 878.56623 0.73% - 0s 0 2 878.56660 0 97 885.00000 878.56660 0.73% - 0s * 104 56 12 884.0000000 879.57644 0.50% 13.8 0s * 332 66 14 883.0000000 880.65107 0.27% 11.6 0s Cutting planes: Gomory: 6 MIR: 4 Zero half: 8 Explored 464 nodes (5818 simplex iterations) in 0.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (33, 45), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(8, 54), (9, 36), (9, 55), (12, 67), (12, 54), (15, 20), (15, 60), (20, 55), (60, 67)] adding cut for [(32, 73), (39, 66), (39, 59), (40, 73), (10, 40), (10, 41), (11, 32), (11, 66)] Optimize a model with 157 rows, 2850 columns and 25860 nonzeros Presolve time: 0.03s Presolved: 157 rows, 2850 columns, 25860 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.771714e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.17140 0 82 2906.00000 877.17140 69.8% - 0s Another try with MIP start H 0 0 888.0000000 877.17140 1.22% - 0s H 0 0 885.0000000 877.17140 0.88% - 0s 0 0 877.70501 0 80 885.00000 877.70501 0.82% - 0s 0 0 877.70501 0 82 885.00000 877.70501 0.82% - 0s 0 0 878.31482 0 83 885.00000 878.31482 0.76% - 0s 0 0 878.41765 0 82 885.00000 878.41765 0.74% - 0s 0 0 878.51243 0 89 885.00000 878.51243 0.73% - 0s 0 0 878.52277 0 93 885.00000 878.52277 0.73% - 0s 0 2 878.53911 0 93 885.00000 878.53911 0.73% - 0s * 28 15 21 884.0000000 879.22240 0.54% 14.0 0s * 830 3 11 883.0000000 882.52500 0.05% 11.3 0s Cutting planes: Gomory: 10 Zero half: 4 Explored 831 nodes (9917 simplex iterations) in 0.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.830000000000e+02, best bound 8.830000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 25), (4, 45), (8, 54), (14, 55), (14, 58), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (23, 29), (24, 50), (24, 57), (25, 50), (29, 62), (33, 45), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(19, 51), (19, 56), (39, 66), (40, 73), (10, 40), (10, 51), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (26, 32), (26, 56), (59, 73), (60, 67)] Optimize a model with 159 rows, 2850 columns and 26402 nonzeros Presolve time: 0.03s Presolved: 159 rows, 2850 columns, 26402 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.771714e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.17140 0 82 2906.00000 877.17140 69.8% - 0s Another try with MIP start H 0 0 891.0000000 877.17140 1.55% - 0s H 0 0 885.0000000 877.17140 0.88% - 0s 0 0 877.70501 0 80 885.00000 877.70501 0.82% - 0s 0 0 877.70501 0 82 885.00000 877.70501 0.82% - 0s 0 0 878.33289 0 83 885.00000 878.33289 0.75% - 0s 0 0 878.35769 0 90 885.00000 878.35769 0.75% - 0s 0 0 878.40007 0 95 885.00000 878.40007 0.75% - 0s 0 0 878.40348 0 92 885.00000 878.40348 0.75% - 0s 0 0 878.40698 0 92 885.00000 878.40698 0.74% - 0s 0 0 878.42779 0 97 885.00000 878.42779 0.74% - 0s 0 0 878.43055 0 98 885.00000 878.43055 0.74% - 0s 0 0 878.43789 0 97 885.00000 878.43789 0.74% - 0s 0 0 878.44366 0 98 885.00000 878.44366 0.74% - 0s 0 2 878.46060 0 98 885.00000 878.46060 0.74% - 0s * 425 133 18 884.0000000 880.81958 0.36% 13.5 0s Cutting planes: Gomory: 4 MIR: 4 Zero half: 13 Explored 964 nodes (12009 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.840000000000e+02, best bound 8.840000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (10, 26), (10, 40), (11, 32), (11, 66), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (31, 75), (32, 73), (37, 70), (37, 72), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (51, 56), (61, 71), (61, 72), (62, 70)] adding cut for [(12, 67), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (16, 30), (20, 55), (60, 67)] Optimize a model with 161 rows, 2850 columns and 27087 nonzeros Presolve time: 0.03s Presolved: 161 rows, 2850 columns, 27087 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.772055e+02, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.20549 0 84 2906.00000 877.20549 69.8% - 0s Another try with MIP start H 0 0 887.0000000 877.20549 1.10% - 0s H 0 0 886.0000000 877.20549 0.99% - 0s 0 0 877.72161 0 85 886.00000 877.72161 0.93% - 0s 0 0 877.72161 0 84 886.00000 877.72161 0.93% - 0s 0 0 878.23641 0 90 886.00000 878.23641 0.88% - 0s 0 0 878.27279 0 89 886.00000 878.27279 0.87% - 0s 0 0 878.38074 0 89 886.00000 878.38074 0.86% - 0s 0 0 878.41807 0 91 886.00000 878.41807 0.86% - 0s 0 0 878.42424 0 94 886.00000 878.42424 0.86% - 0s 0 0 878.43046 0 94 886.00000 878.43046 0.85% - 0s 0 0 878.43046 0 94 886.00000 878.43046 0.85% - 0s 0 2 878.46925 0 94 886.00000 878.46925 0.85% - 0s H 54 31 885.0000000 879.42762 0.63% 12.2 0s * 200 71 14 884.0000000 879.96889 0.46% 13.6 0s Explored 1383 nodes (17313 simplex iterations) in 1.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.840000000000e+02, best bound 8.840000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (6, 16), (6, 38), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (29, 62), (29, 63), (34, 74), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (32, 73), (19, 51), (19, 25), (10, 40), (10, 26), (17, 50), (51, 56), (25, 50), (26, 56)] Optimize a model with 163 rows, 2850 columns and 27737 nonzeros Presolve time: 0.03s Presolved: 163 rows, 2850 columns, 27737 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.775489e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 877.54889 0 83 2906.00000 877.54889 69.8% - 0s Another try with MIP start H 0 0 886.0000000 877.54889 0.95% - 0s 0 0 878.03127 0 87 886.00000 878.03127 0.90% - 0s 0 0 878.03127 0 83 886.00000 878.03127 0.90% - 0s 0 0 878.46530 0 88 886.00000 878.46530 0.85% - 0s 0 0 878.74199 0 94 886.00000 878.74199 0.82% - 0s 0 0 878.78836 0 96 886.00000 878.78836 0.81% - 0s 0 0 878.80890 0 94 886.00000 878.80890 0.81% - 0s 0 0 878.81464 0 96 886.00000 878.81464 0.81% - 0s 0 0 878.81464 0 96 886.00000 878.81464 0.81% - 0s 0 2 878.87277 0 96 886.00000 878.87277 0.80% - 0s H 27 21 885.0000000 879.35614 0.64% 15.1 0s * 370 94 12 884.0000000 881.18452 0.32% 13.9 0s Cutting planes: Gomory: 8 Zero half: 5 Explored 639 nodes (8369 simplex iterations) in 1.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.840000000000e+02, best bound 8.840000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 45), (10, 33), (10, 40), (11, 32), (11, 73), (19, 25), (19, 51), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (33, 45), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (63, 74)] adding cut for [(6, 30), (6, 49), (12, 66), (12, 67), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (37, 70), (37, 72), (39, 59), (39, 66), (48, 49), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70)] Optimize a model with 165 rows, 2850 columns and 28364 nonzeros Presolve time: 0.03s Presolved: 165 rows, 2850 columns, 28364 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.783005e+02, 268 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 878.30054 0 90 2906.00000 878.30054 69.8% - 0s Another try with MIP start H 0 0 887.0000000 878.30054 0.98% - 0s 0 0 878.83707 0 91 887.00000 878.83707 0.92% - 0s 0 0 878.83707 0 90 887.00000 878.83707 0.92% - 0s 0 0 878.95616 0 84 887.00000 878.95616 0.91% - 0s 0 0 879.33906 0 92 887.00000 879.33906 0.86% - 0s 0 0 879.38732 0 91 887.00000 879.38732 0.86% - 0s 0 0 879.48457 0 95 887.00000 879.48457 0.85% - 0s 0 0 879.50907 0 96 887.00000 879.50907 0.84% - 0s 0 0 879.51125 0 98 887.00000 879.51125 0.84% - 0s 0 0 879.51125 0 98 887.00000 879.51125 0.84% - 0s 0 2 879.51790 0 98 887.00000 879.51790 0.84% - 0s * 252 85 13 885.0000000 880.71586 0.48% 12.7 0s * 644 70 12 884.0000000 882.08146 0.22% 12.8 1s Cutting planes: Gomory: 9 Zero half: 5 Explored 756 nodes (9673 simplex iterations) in 1.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.840000000000e+02, best bound 8.840000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (4, 17), (4, 45), (10, 33), (10, 40), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (34, 64), (42, 57), (42, 65), (43, 44), (43, 65)] adding cut for [(3, 74), (6, 30), (6, 49), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (29, 62), (29, 75), (30, 58), (31, 49), (37, 48), (37, 70), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(66, 67), (11, 39), (11, 59), (12, 66), (12, 39), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55), (59, 73), (60, 67)] Optimize a model with 168 rows, 2850 columns and 28904 nonzeros Presolve time: 0.03s Presolved: 168 rows, 2850 columns, 28904 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.783005e+02, 246 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 878.30054 0 90 2906.00000 878.30054 69.8% - 0s Another try with MIP start H 0 0 886.0000000 878.30054 0.87% - 0s 0 0 878.83707 0 91 886.00000 878.83707 0.81% - 0s 0 0 878.83707 0 90 886.00000 878.83707 0.81% - 0s 0 0 878.90150 0 87 886.00000 878.90150 0.80% - 0s 0 0 878.94355 0 96 886.00000 878.94355 0.80% - 0s 0 0 878.95242 0 98 886.00000 878.95242 0.80% - 0s 0 0 879.06759 0 92 886.00000 879.06759 0.78% - 0s 0 0 879.08882 0 90 886.00000 879.08882 0.78% - 0s 0 0 879.10209 0 94 886.00000 879.10209 0.78% - 0s 0 0 879.14679 0 92 886.00000 879.14679 0.77% - 0s 0 0 879.15866 0 97 886.00000 879.15866 0.77% - 0s 0 0 879.16736 0 100 886.00000 879.16736 0.77% - 0s 0 0 879.16736 0 100 886.00000 879.16736 0.77% - 0s 0 2 879.17145 0 100 886.00000 879.17145 0.77% - 0s H 81 45 885.0000000 880.39680 0.52% 16.8 0s Cutting planes: Gomory: 5 Zero half: 9 Explored 781 nodes (10637 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.850000000000e+02, best bound 8.850000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (14, 28), (14, 58), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 57), (24, 64), (29, 62), (29, 75), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 66), (32, 56), (33, 45), (66, 67), (4, 45), (4, 50), (9, 55), (40, 73), (10, 33), (10, 40), (15, 20), (15, 60), (19, 51), (19, 25), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(36, 54), (8, 36), (11, 39), (11, 59), (12, 39), (12, 54)] Optimize a model with 171 rows, 2850 columns and 29440 nonzeros Presolve time: 0.03s Presolved: 171 rows, 2850 columns, 29440 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.783005e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 878.30054 0 90 2906.00000 878.30054 69.8% - 0s Another try with MIP start H 0 0 888.0000000 878.30054 1.09% - 0s 0 0 878.83707 0 91 888.00000 878.83707 1.03% - 0s 0 0 878.83707 0 90 888.00000 878.83707 1.03% - 0s 0 0 878.95616 0 84 888.00000 878.95616 1.02% - 0s 0 0 879.36101 0 95 888.00000 879.36101 0.97% - 0s 0 0 879.40286 0 92 888.00000 879.40286 0.97% - 0s 0 0 879.46614 0 98 888.00000 879.46614 0.96% - 0s 0 0 879.49366 0 95 888.00000 879.49366 0.96% - 0s 0 0 879.50247 0 97 888.00000 879.50247 0.96% - 0s 0 2 879.51095 0 97 888.00000 879.51095 0.96% - 0s * 25 21 19 886.0000000 879.87186 0.69% 16.1 0s * 349 119 16 885.0000000 881.51480 0.39% 14.3 1s Cutting planes: Gomory: 7 Zero half: 3 Explored 1016 nodes (13494 simplex iterations) in 1.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.850000000000e+02, best bound 8.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (3, 75), (10, 40), (10, 51), (11, 39), (11, 59), (12, 39), (12, 67), (19, 25), (19, 56), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 66), (32, 73), (34, 64), (34, 74), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (14, 58), (14, 28), (48, 49), (21, 71), (21, 38), (22, 70), (22, 48), (61, 71), (61, 72), (30, 46), (37, 70), (37, 72)] Optimize a model with 173 rows, 2850 columns and 30072 nonzeros Presolve time: 0.03s Presolved: 173 rows, 2850 columns, 30072 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.787705e+02, 238 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 878.77051 0 87 2906.00000 878.77051 69.8% - 0s Another try with MIP start H 0 0 890.0000000 878.77051 1.26% - 0s H 0 0 888.0000000 878.77051 1.04% - 0s 0 0 879.30757 0 86 888.00000 879.30757 0.98% - 0s 0 0 879.30757 0 87 888.00000 879.30757 0.98% - 0s 0 0 879.40763 0 90 888.00000 879.40763 0.97% - 0s 0 0 879.47472 0 91 888.00000 879.47472 0.96% - 0s 0 0 879.58802 0 93 888.00000 879.58802 0.95% - 0s 0 0 879.62549 0 94 888.00000 879.62549 0.94% - 0s 0 0 879.63810 0 98 888.00000 879.63810 0.94% - 0s 0 0 879.66059 0 95 888.00000 879.66059 0.94% - 0s 0 0 879.67096 0 99 888.00000 879.67096 0.94% - 0s 0 0 879.67936 0 95 888.00000 879.67936 0.94% - 0s 0 0 879.69199 0 98 888.00000 879.69199 0.94% - 0s 0 0 879.71007 0 98 888.00000 879.71007 0.93% - 0s 0 0 879.71032 0 99 888.00000 879.71032 0.93% - 0s 0 2 879.74100 0 99 888.00000 879.74100 0.93% - 0s * 130 66 16 886.0000000 881.23046 0.54% 16.2 0s * 362 71 15 885.0000000 882.35927 0.30% 14.1 1s Cutting planes: Gomory: 7 Zero half: 13 Explored 538 nodes (7557 simplex iterations) in 1.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.850000000000e+02, best bound 8.850000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 23), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (34, 64), (34, 74), (17, 64), (19, 56), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 56), (26, 51), (42, 44), (42, 57)] adding cut for [(16, 58), (16, 38), (3, 63), (37, 70), (37, 48), (70, 72), (14, 58), (14, 28), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (29, 62), (29, 63)] adding cut for [(32, 40), (39, 66), (9, 55), (10, 40), (10, 41), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 176 rows, 2850 columns and 30509 nonzeros Presolve time: 0.03s Presolved: 176 rows, 2850 columns, 30509 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.791508e+02, 267 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.15077 0 81 2906.00000 879.15077 69.7% - 0s Another try with MIP start H 0 0 887.0000000 879.15077 0.88% - 0s 0 0 879.67319 0 82 887.00000 879.67319 0.83% - 0s 0 0 879.67319 0 81 887.00000 879.67319 0.83% - 0s 0 0 880.21701 0 90 887.00000 880.21701 0.76% - 0s 0 0 880.28184 0 96 887.00000 880.28184 0.76% - 0s 0 0 880.41531 0 90 887.00000 880.41531 0.74% - 0s 0 0 880.42155 0 94 887.00000 880.42155 0.74% - 0s 0 0 880.47894 0 94 887.00000 880.47894 0.74% - 0s 0 0 880.48028 0 95 887.00000 880.48028 0.74% - 0s 0 0 880.49682 0 92 887.00000 880.49682 0.73% - 0s 0 0 880.51781 0 96 887.00000 880.51781 0.73% - 0s 0 0 880.52333 0 96 887.00000 880.52333 0.73% - 0s 0 0 880.54400 0 93 887.00000 880.54400 0.73% - 0s 0 0 880.54514 0 93 887.00000 880.54514 0.73% - 0s 0 0 880.55116 0 96 887.00000 880.55116 0.73% - 0s 0 0 880.55116 0 95 887.00000 880.55116 0.73% - 0s 0 2 880.55304 0 95 887.00000 880.55304 0.73% - 0s * 70 37 15 886.0000000 881.19591 0.54% 16.8 0s * 387 73 13 885.0000000 882.70757 0.26% 14.4 0s Cutting planes: Gomory: 1 Zero half: 13 Explored 544 nodes (7867 simplex iterations) in 0.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.850000000000e+02, best bound 8.850000000000e+02, gap 0.0% adding cut for [(9, 20), (11, 39), (11, 59), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (32, 56), (32, 66), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(8, 54), (12, 67), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 178 rows, 2850 columns and 31196 nonzeros Presolve time: 0.03s Presolved: 178 rows, 2850 columns, 31196 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.791508e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.15077 0 81 2906.00000 879.15077 69.7% - 0s Another try with MIP start H 0 0 889.0000000 879.15077 1.11% - 0s H 0 0 887.0000000 879.15077 0.88% - 0s 0 0 879.67319 0 82 887.00000 879.67319 0.83% - 0s 0 0 879.67319 0 81 887.00000 879.67319 0.83% - 0s 0 0 880.21701 0 90 887.00000 880.21701 0.76% - 0s 0 0 880.27927 0 96 887.00000 880.27927 0.76% - 0s 0 0 880.28964 0 96 887.00000 880.28964 0.76% - 0s 0 0 880.29171 0 99 887.00000 880.29171 0.76% - 0s 0 0 880.29927 0 98 887.00000 880.29927 0.76% - 0s 0 0 880.29960 0 99 887.00000 880.29960 0.76% - 0s 0 0 880.29960 0 99 887.00000 880.29960 0.76% - 0s 0 2 880.30781 0 99 887.00000 880.30781 0.75% - 0s * 905 236 31 886.0000000 882.80631 0.36% 14.6 1s * 1177 88 24 885.0000000 883.20890 0.20% 14.2 1s Cutting planes: Gomory: 4 Zero half: 7 Explored 1281 nodes (18235 simplex iterations) in 2.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.850000000000e+02, best bound 8.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (11, 32), (11, 59), (12, 39), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (32, 66), (37, 70), (37, 72), (39, 59), (42, 43), (42, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(33, 51), (33, 45), (4, 45), (40, 73), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(6, 49), (6, 30), (48, 49), (22, 48), (22, 29), (29, 75), (31, 75)] Optimize a model with 181 rows, 2850 columns and 31765 nonzeros Presolve time: 0.03s Presolved: 181 rows, 2850 columns, 31765 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.792520e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.25199 0 86 2906.00000 879.25199 69.7% - 0s Another try with MIP start H 0 0 894.0000000 879.25199 1.65% - 0s H 0 0 889.0000000 879.25199 1.10% - 0s 0 0 879.77631 0 83 889.00000 879.77631 1.04% - 0s 0 0 879.77631 0 86 889.00000 879.77631 1.04% - 0s 0 0 880.42747 0 90 889.00000 880.42747 0.96% - 0s 0 0 880.44293 0 92 889.00000 880.44293 0.96% - 0s 0 0 880.46072 0 94 889.00000 880.46072 0.96% - 0s 0 0 880.46162 0 94 889.00000 880.46162 0.96% - 0s 0 0 880.46495 0 94 889.00000 880.46495 0.96% - 0s 0 0 880.46495 0 94 889.00000 880.46495 0.96% - 0s 0 2 880.52519 0 94 889.00000 880.52519 0.95% - 0s * 40 29 34 888.0000000 881.11940 0.77% 13.4 0s * 87 47 16 887.0000000 881.28070 0.64% 14.4 0s * 202 75 18 886.0000000 881.98507 0.45% 14.1 0s Cutting planes: Gomory: 6 Zero half: 3 Explored 887 nodes (11450 simplex iterations) in 1.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.860000000000e+02, best bound 8.860000000000e+02, gap 0.0% adding cut for [(14, 28), (14, 55), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (32, 56), (33, 45), (4, 45), (4, 50), (40, 41), (10, 33), (10, 40), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(39, 66), (9, 20), (11, 39), (11, 59), (12, 66), (12, 67), (15, 20), (15, 60), (60, 67)] Optimize a model with 184 rows, 2850 columns and 32226 nonzeros Presolve time: 0.03s Presolved: 184 rows, 2850 columns, 32226 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.792520e+02, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.25199 0 86 2906.00000 879.25199 69.7% - 0s Another try with MIP start H 0 0 889.0000000 879.25199 1.10% - 0s 0 0 879.77631 0 83 889.00000 879.77631 1.04% - 0s 0 0 879.77631 0 86 889.00000 879.77631 1.04% - 0s 0 0 880.42844 0 92 889.00000 880.42844 0.96% - 0s 0 0 880.46545 0 94 889.00000 880.46545 0.96% - 0s 0 0 880.52352 0 94 889.00000 880.52352 0.95% - 0s 0 0 880.52792 0 95 889.00000 880.52792 0.95% - 0s 0 0 880.54378 0 95 889.00000 880.54378 0.95% - 0s 0 0 880.55720 0 95 889.00000 880.55720 0.95% - 0s 0 0 880.63018 0 96 889.00000 880.63018 0.94% - 0s 0 0 880.63629 0 97 889.00000 880.63629 0.94% - 0s 0 0 880.64207 0 98 889.00000 880.64207 0.94% - 0s 0 0 880.64207 0 98 889.00000 880.64207 0.94% - 0s 0 2 880.65546 0 98 889.00000 880.65546 0.94% - 0s * 142 75 20 887.0000000 881.43191 0.63% 14.9 0s * 640 190 25 886.0000000 883.02717 0.34% 15.0 2s Cutting planes: Gomory: 6 Zero half: 4 Explored 1358 nodes (18733 simplex iterations) in 2.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.860000000000e+02, best bound 8.860000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (10, 33), (10, 40), (11, 32), (11, 39), (12, 39), (12, 66), (15, 20), (15, 60), (19, 25), (19, 51), (20, 55), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (40, 73), (53, 55), (59, 73), (60, 67), (66, 67)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 58), (14, 28), (48, 49), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(43, 65), (43, 44), (42, 44), (42, 57), (22, 75), (22, 29), (23, 65), (23, 62), (24, 64), (24, 57), (29, 62)] adding cut for [(8, 36), (8, 54), (36, 54)] Optimize a model with 188 rows, 2850 columns and 32676 nonzeros Presolve time: 0.03s Presolved: 188 rows, 2850 columns, 32676 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794016e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40156 0 83 2906.00000 879.40156 69.7% - 0s Another try with MIP start H 0 0 889.0000000 879.40156 1.08% - 0s 0 0 879.91999 0 88 889.00000 879.91999 1.02% - 0s 0 0 879.91999 0 83 889.00000 879.91999 1.02% - 0s 0 0 880.67265 0 92 889.00000 880.67265 0.94% - 0s 0 0 880.81802 0 94 889.00000 880.81802 0.92% - 0s 0 0 880.95677 0 96 889.00000 880.95677 0.90% - 0s 0 0 880.97710 0 97 889.00000 880.97710 0.90% - 0s 0 0 880.98514 0 98 889.00000 880.98514 0.90% - 0s 0 0 880.98635 0 100 889.00000 880.98635 0.90% - 0s 0 0 880.98635 0 100 889.00000 880.98635 0.90% - 0s 0 2 880.98820 0 100 889.00000 880.98820 0.90% - 0s * 350 149 22 887.0000000 882.43309 0.51% 14.0 1s * 1685 139 26 886.0000000 884.11876 0.21% 13.6 3s Cutting planes: Gomory: 11 Zero half: 14 Explored 1887 nodes (25006 simplex iterations) in 3.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.860000000000e+02, best bound 8.860000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (8, 54), (11, 32), (11, 39), (12, 54), (12, 67), (17, 50), (17, 64), (19, 25), (19, 51), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(6, 16), (6, 38), (9, 36), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (31, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] Optimize a model with 190 rows, 2850 columns and 33307 nonzeros Presolve time: 0.03s Presolved: 190 rows, 2850 columns, 33307 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794016e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40156 0 83 2906.00000 879.40156 69.7% - 0s Another try with MIP start H 0 0 904.0000000 879.40156 2.72% - 0s H 0 0 896.0000000 879.40156 1.85% - 0s 0 0 879.91999 0 88 896.00000 879.91999 1.79% - 0s 0 0 879.91999 0 83 896.00000 879.91999 1.79% - 0s 0 0 880.67265 0 92 896.00000 880.67265 1.71% - 0s 0 0 880.75330 0 94 896.00000 880.75330 1.70% - 0s 0 0 880.87807 0 92 896.00000 880.87807 1.69% - 0s 0 0 880.89433 0 95 896.00000 880.89433 1.69% - 0s 0 0 880.90535 0 94 896.00000 880.90535 1.68% - 0s 0 0 880.90764 0 96 896.00000 880.90764 1.68% - 0s 0 0 880.92580 0 92 896.00000 880.92580 1.68% - 0s 0 0 880.92691 0 95 896.00000 880.92691 1.68% - 0s 0 0 880.92963 0 96 896.00000 880.92963 1.68% - 0s 0 0 880.92963 0 96 896.00000 880.92963 1.68% - 0s H 0 0 889.0000000 880.92963 0.91% - 0s 0 2 880.96740 0 96 889.00000 880.96740 0.90% - 0s * 139 87 17 888.0000000 882.00943 0.67% 14.5 1s H 600 225 887.0000000 883.04598 0.45% 13.4 1s * 2227 0 21 886.0000000 886.00000 0.0% 13.0 3s Cutting planes: Gomory: 12 MIR: 2 Zero half: 14 Explored 2228 nodes (29587 simplex iterations) in 3.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.860000000000e+02, best bound 8.860000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (15, 36), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (31, 75), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 20), (14, 55), (14, 28), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 70), (28, 58), (61, 71), (61, 72), (30, 49), (37, 72), (37, 70)] Optimize a model with 192 rows, 2850 columns and 33829 nonzeros Presolve time: 0.03s Presolved: 192 rows, 2850 columns, 33829 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794016e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40156 0 83 2906.00000 879.40156 69.7% - 0s Another try with MIP start H 0 0 892.0000000 879.40156 1.41% - 0s 0 0 879.91999 0 88 892.00000 879.91999 1.35% - 0s 0 0 879.91999 0 84 892.00000 879.91999 1.35% - 0s 0 0 880.61968 0 90 892.00000 880.61968 1.28% - 0s 0 0 880.79535 0 94 892.00000 880.79535 1.26% - 0s 0 0 880.83064 0 94 892.00000 880.83064 1.25% - 0s 0 0 880.86219 0 97 892.00000 880.86219 1.25% - 0s 0 0 880.87809 0 98 892.00000 880.87809 1.25% - 0s 0 0 880.89885 0 99 892.00000 880.89885 1.24% - 0s 0 0 880.90490 0 101 892.00000 880.90490 1.24% - 0s 0 0 880.90490 0 101 892.00000 880.90490 1.24% - 0s 0 2 880.90682 0 101 892.00000 880.90682 1.24% - 0s H 27 27 889.0000000 881.37290 0.86% 16.4 0s * 33 27 27 887.0000000 881.37290 0.63% 16.5 0s Cutting planes: Gomory: 10 Zero half: 2 Explored 2339 nodes (30618 simplex iterations) in 3.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 30), (6, 49), (10, 33), (10, 40), (11, 39), (11, 59), (12, 39), (12, 54), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (30, 46), (33, 45), (37, 70), (37, 72), (40, 73), (48, 49), (59, 73), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (9, 15), (34, 64), (15, 60), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (29, 75), (29, 63), (23, 65), (23, 63), (31, 75)] Optimize a model with 195 rows, 2850 columns and 34469 nonzeros Presolve time: 0.03s Presolved: 195 rows, 2850 columns, 34469 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794016e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40156 0 83 2906.00000 879.40156 69.7% - 0s Another try with MIP start H 0 0 894.0000000 879.40156 1.63% - 0s 0 0 879.91999 0 88 894.00000 879.91999 1.57% - 0s 0 0 879.91999 0 83 894.00000 879.91999 1.57% - 0s 0 0 880.64274 0 97 894.00000 880.64274 1.49% - 0s 0 0 880.74771 0 95 894.00000 880.74771 1.48% - 0s 0 0 880.85763 0 94 894.00000 880.85763 1.47% - 0s 0 0 880.87756 0 99 894.00000 880.87756 1.47% - 0s 0 0 880.94563 0 97 894.00000 880.94563 1.46% - 0s 0 0 880.94873 0 101 894.00000 880.94873 1.46% - 0s 0 0 880.94873 0 101 894.00000 880.94873 1.46% - 0s H 0 0 893.0000000 880.94873 1.35% - 0s 0 2 880.96604 0 101 893.00000 880.96604 1.35% - 0s * 47 37 37 889.0000000 881.32803 0.86% 14.1 0s * 457 238 20 888.0000000 882.95960 0.57% 14.3 1s * 815 303 29 887.0000000 883.29012 0.42% 15.0 2s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Explored 2154 nodes (29243 simplex iterations) in 3.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (9, 20), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (32, 66), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (50, 57), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(34, 74), (48, 49), (22, 75), (22, 48), (31, 49), (29, 75), (29, 63), (63, 74)] adding cut for [(8, 54), (11, 39), (11, 59), (12, 39), (12, 54)] Optimize a model with 198 rows, 2850 columns and 35186 nonzeros Presolve time: 0.03s Presolved: 198 rows, 2850 columns, 35186 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794094e+02, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40937 0 85 2906.00000 879.40937 69.7% - 0s Another try with MIP start H 0 0 891.0000000 879.40937 1.30% - 0s 0 0 879.91999 0 88 891.00000 879.91999 1.24% - 0s 0 0 879.91999 0 85 891.00000 879.91999 1.24% - 0s 0 0 880.63464 0 94 891.00000 880.63464 1.16% - 0s 0 0 880.77940 0 96 891.00000 880.77940 1.15% - 0s 0 0 880.90218 0 96 891.00000 880.90218 1.13% - 0s 0 0 880.92468 0 96 891.00000 880.92468 1.13% - 0s 0 0 880.95540 0 94 891.00000 880.95540 1.13% - 0s 0 0 880.96070 0 95 891.00000 880.96070 1.13% - 0s 0 0 880.96257 0 97 891.00000 880.96257 1.13% - 0s 0 0 880.96257 0 96 891.00000 880.96257 1.13% - 0s H 0 0 887.0000000 880.96257 0.68% - 0s 0 2 880.96529 0 96 887.00000 880.96529 0.68% - 0s Cutting planes: Gomory: 10 Zero half: 1 Explored 2101 nodes (27640 simplex iterations) in 3.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (14, 28), (14, 58), (21, 71), (21, 38), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (31, 75), (31, 49)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (9, 55), (11, 32), (11, 66), (15, 20), (15, 60), (17, 50), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 64), (2, 74), (3, 63), (43, 65), (43, 44), (34, 74), (29, 62), (29, 63), (23, 65), (23, 62), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 201 rows, 2850 columns and 35564 nonzeros Presolve time: 0.03s Presolved: 201 rows, 2850 columns, 35564 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794094e+02, 261 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.40937 0 85 2906.00000 879.40937 69.7% - 0s Another try with MIP start H 0 0 890.0000000 879.40937 1.19% - 0s 0 0 879.91999 0 88 890.00000 879.91999 1.13% - 0s 0 0 879.91999 0 85 890.00000 879.91999 1.13% - 0s 0 0 880.51530 0 93 890.00000 880.51530 1.07% - 0s 0 0 880.66704 0 90 890.00000 880.66704 1.05% - 0s 0 0 880.66704 0 92 890.00000 880.66704 1.05% - 0s 0 0 880.69378 0 92 890.00000 880.69378 1.05% - 0s 0 0 880.69830 0 98 890.00000 880.69830 1.05% - 0s 0 0 880.78883 0 92 890.00000 880.78883 1.03% - 0s 0 0 880.79243 0 96 890.00000 880.79243 1.03% - 0s 0 0 880.79248 0 97 890.00000 880.79248 1.03% - 0s 0 2 880.79300 0 96 890.00000 880.79300 1.03% - 0s * 191 79 20 887.0000000 882.00000 0.56% 14.0 1s Cutting planes: Gomory: 8 Zero half: 3 Explored 2259 nodes (29230 simplex iterations) in 3.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 64), (10, 33), (10, 40), (11, 39), (11, 59), (17, 64), (19, 25), (19, 56), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 66), (32, 73), (33, 51), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(34, 74), (37, 72), (37, 70), (14, 55), (14, 58), (29, 63), (29, 62), (16, 38), (16, 58), (53, 55), (63, 74), (61, 71), (61, 72), (62, 70), (21, 38), (21, 71)] adding cut for [(12, 67), (12, 54), (15, 20), (15, 60), (20, 54), (60, 67)] Optimize a model with 204 rows, 2850 columns and 36015 nonzeros Presolve time: 0.03s Presolved: 204 rows, 2850 columns, 36015 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794444e+02, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.44441 0 86 2906.00000 879.44441 69.7% - 0s Another try with MIP start H 0 0 891.0000000 879.44441 1.30% - 0s 0 0 879.95900 0 90 891.00000 879.95900 1.24% - 0s 0 0 879.95900 0 86 891.00000 879.95900 1.24% - 0s 0 0 880.75875 0 91 891.00000 880.75875 1.15% - 0s 0 0 880.78279 0 96 891.00000 880.78279 1.15% - 0s 0 0 880.80808 0 95 891.00000 880.80808 1.14% - 0s 0 0 880.81801 0 97 891.00000 880.81801 1.14% - 0s 0 0 880.90719 0 95 891.00000 880.90719 1.13% - 0s 0 0 880.92006 0 96 891.00000 880.92006 1.13% - 0s 0 0 880.92647 0 101 891.00000 880.92647 1.13% - 0s 0 0 880.93317 0 96 891.00000 880.93317 1.13% - 0s 0 0 880.94235 0 100 891.00000 880.94235 1.13% - 0s 0 0 880.95029 0 100 891.00000 880.95029 1.13% - 0s 0 0 880.96552 0 102 891.00000 880.96552 1.13% - 0s 0 2 880.97947 0 102 891.00000 880.97947 1.12% - 0s H 234 152 889.0000000 881.88023 0.80% 15.4 0s * 326 175 17 888.0000000 882.01396 0.67% 15.0 0s * 736 329 33 887.0000000 882.52657 0.50% 15.5 1s 3667 307 885.26600 28 74 887.00000 884.70690 0.26% 14.4 5s Cutting planes: Gomory: 9 MIR: 6 Zero half: 12 Explored 4423 nodes (61366 simplex iterations) in 5.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(34, 74), (6, 38), (6, 16), (70, 72), (29, 75), (29, 62), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 62), (63, 74), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(2, 64), (2, 44), (4, 45), (33, 51), (33, 45), (42, 65), (42, 57), (43, 65), (43, 44), (17, 64), (19, 56), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56)] adding cut for [(32, 73), (39, 66), (40, 73), (9, 36), (10, 40), (10, 41), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (60, 67)] Optimize a model with 207 rows, 2850 columns and 36449 nonzeros Presolve time: 0.03s Presolved: 207 rows, 2850 columns, 36449 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794444e+02, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.44441 0 87 2906.00000 879.44441 69.7% - 0s Another try with MIP start H 0 0 897.0000000 879.44441 1.96% - 0s H 0 0 895.0000000 879.44441 1.74% - 0s 0 0 880.08642 0 90 895.00000 880.08642 1.67% - 0s 0 0 880.08642 0 86 895.00000 880.08642 1.67% - 0s 0 0 880.75875 0 91 895.00000 880.75875 1.59% - 0s 0 0 880.91911 0 93 895.00000 880.91911 1.57% - 0s 0 0 880.94042 0 97 895.00000 880.94042 1.57% - 0s 0 0 880.95122 0 95 895.00000 880.95122 1.57% - 0s 0 0 880.98415 0 97 895.00000 880.98415 1.57% - 0s 0 0 880.98803 0 99 895.00000 880.98803 1.57% - 0s 0 0 880.98895 0 101 895.00000 880.98895 1.57% - 0s 0 2 880.98960 0 101 895.00000 880.98960 1.57% - 1s * 128 77 36 890.0000000 881.44848 0.96% 14.4 1s * 237 134 26 889.0000000 881.96011 0.79% 14.6 1s * 898 349 25 888.0000000 882.94180 0.57% 14.8 2s * 1511 255 22 887.0000000 883.77489 0.36% 14.2 3s Cutting planes: Gomory: 9 Zero half: 3 Explored 2473 nodes (32407 simplex iterations) in 4.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 51), (19, 56), (20, 36), (21, 38), (21, 71), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 62), (32, 73), (33, 51), (36, 54), (37, 70), (37, 72), (39, 66), (40, 73), (41, 45), (42, 44), (42, 57), (43, 44), (43, 65), (55, 60), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 208 rows, 2850 columns and 37484 nonzeros Presolve time: 0.03s Presolved: 208 rows, 2850 columns, 37484 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794444e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.44441 0 87 2906.00000 879.44441 69.7% - 0s Another try with MIP start H 0 0 892.0000000 879.44441 1.41% - 0s 0 0 880.08642 0 89 892.00000 880.08642 1.34% - 0s 0 0 880.08642 0 86 892.00000 880.08642 1.34% - 0s 0 0 880.77406 0 88 892.00000 880.77406 1.26% - 0s 0 0 880.79850 0 94 892.00000 880.79850 1.26% - 0s 0 0 880.84492 0 98 892.00000 880.84492 1.25% - 0s 0 0 880.86349 0 95 892.00000 880.86349 1.25% - 0s 0 0 880.86747 0 98 892.00000 880.86747 1.25% - 0s 0 0 880.89429 0 97 892.00000 880.89429 1.25% - 0s 0 0 880.89732 0 100 892.00000 880.89732 1.24% - 0s 0 0 880.92018 0 100 892.00000 880.92018 1.24% - 0s 0 0 880.93166 0 101 892.00000 880.93166 1.24% - 0s 0 0 880.93840 0 101 892.00000 880.93840 1.24% - 0s 0 0 880.93856 0 101 892.00000 880.93856 1.24% - 0s 0 2 880.94086 0 101 892.00000 880.94086 1.24% - 0s * 69 54 42 891.0000000 881.28533 1.09% 19.6 0s * 112 81 33 890.0000000 881.53284 0.95% 17.3 0s * 541 172 25 887.0000000 882.76275 0.48% 15.2 1s Cutting planes: Gomory: 7 Zero half: 5 Explored 1862 nodes (27015 simplex iterations) in 3.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 49), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (22, 62), (22, 75), (23, 29), (23, 65), (29, 75), (32, 73), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (48, 49), (59, 73), (60, 67), (62, 70), (63, 74)] adding cut for [(33, 51), (33, 45), (41, 45), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(61, 72), (61, 71), (21, 38), (21, 71), (38, 72)] Optimize a model with 211 rows, 2850 columns and 38058 nonzeros Presolve time: 0.03s Presolved: 211 rows, 2850 columns, 38058 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794444e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.44441 0 87 2906.00000 879.44441 69.7% - 0s Another try with MIP start H 0 0 902.0000000 879.44441 2.50% - 0s H 0 0 897.0000000 879.44441 1.96% - 0s 0 0 880.08642 0 90 897.00000 880.08642 1.89% - 0s 0 0 880.08642 0 86 897.00000 880.08642 1.89% - 0s 0 0 880.77406 0 88 897.00000 880.77406 1.81% - 0s 0 0 880.90253 0 94 897.00000 880.90253 1.79% - 0s 0 0 880.95453 0 96 897.00000 880.95453 1.79% - 0s 0 0 880.97571 0 98 897.00000 880.97571 1.79% - 0s 0 0 881.02257 0 92 897.00000 881.02257 1.78% - 0s 0 0 881.05233 0 87 897.00000 881.05233 1.78% - 0s 0 0 881.05233 0 89 897.00000 881.05233 1.78% - 0s 0 0 881.05998 0 96 897.00000 881.05998 1.78% - 0s 0 0 881.05998 0 96 897.00000 881.05998 1.78% - 0s 0 2 881.07836 0 96 897.00000 881.07836 1.77% - 0s * 70 60 50 894.0000000 881.55204 1.39% 14.7 1s * 110 80 32 893.0000000 881.61253 1.28% 14.1 1s * 213 104 25 889.0000000 881.92967 0.80% 14.8 1s * 341 131 13 888.0000000 882.27694 0.64% 15.5 1s * 1392 199 34 887.0000000 884.01233 0.34% 15.4 3s Cutting planes: Gomory: 9 Zero half: 5 Explored 2056 nodes (29344 simplex iterations) in 3.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(9, 55), (11, 32), (11, 39), (14, 28), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 65), (66, 67), (70, 72)] adding cut for [(33, 45), (34, 64), (34, 74), (4, 45), (4, 17), (40, 73), (2, 23), (17, 64), (23, 63), (10, 33), (10, 40), (63, 74)] Optimize a model with 213 rows, 2850 columns and 38839 nonzeros Presolve time: 0.03s Presolved: 213 rows, 2850 columns, 38839 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.794444e+02, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.44441 0 86 2906.00000 879.44441 69.7% - 0s Another try with MIP start H 0 0 897.0000000 879.44441 1.96% - 0s 0 0 879.95900 0 90 897.00000 879.95900 1.90% - 0s 0 0 879.95900 0 87 897.00000 879.95900 1.90% - 0s 0 0 880.77408 0 85 897.00000 880.77408 1.81% - 0s 0 0 880.78577 0 93 897.00000 880.78577 1.81% - 0s 0 0 880.86987 0 93 897.00000 880.86987 1.80% - 0s 0 0 880.95319 0 99 897.00000 880.95319 1.79% - 0s 0 0 880.95658 0 99 897.00000 880.95658 1.79% - 0s 0 0 880.96210 0 99 897.00000 880.96210 1.79% - 0s 0 0 880.96210 0 99 897.00000 880.96210 1.79% - 0s H 0 0 893.0000000 880.96210 1.35% - 0s 0 2 880.96568 0 99 893.00000 880.96568 1.35% - 1s * 74 57 25 892.0000000 881.79062 1.14% 16.1 1s * 295 187 31 890.0000000 882.35831 0.86% 14.4 1s * 349 183 28 889.0000000 882.50210 0.73% 14.3 1s H 615 293 888.0000000 883.00152 0.56% 13.8 2s H 2177 236 887.0000000 884.74884 0.25% 14.8 4s Cutting planes: Gomory: 7 Zero half: 4 Explored 2679 nodes (37605 simplex iterations) in 4.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (11, 39), (11, 59), (12, 39), (12, 67), (14, 28), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 29), (22, 48), (23, 62), (23, 65), (24, 44), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (32, 66), (34, 64), (34, 74), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] adding cut for [(36, 54), (8, 36), (9, 20), (15, 54), (15, 60), (20, 55), (55, 60)] Optimize a model with 215 rows, 2850 columns and 39687 nonzeros Presolve time: 0.03s Presolved: 215 rows, 2850 columns, 39687 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.796198e+02, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.61977 0 87 2906.00000 879.61977 69.7% - 0s Another try with MIP start H 0 0 894.0000000 879.61977 1.61% - 0s 0 0 880.22401 0 90 894.00000 880.22401 1.54% - 0s 0 0 880.22401 0 87 894.00000 880.22401 1.54% - 0s 0 0 880.56510 0 90 894.00000 880.56510 1.50% - 0s 0 0 880.83566 0 91 894.00000 880.83566 1.47% - 0s 0 0 881.06308 0 99 894.00000 881.06308 1.45% - 0s 0 0 881.06582 0 101 894.00000 881.06582 1.45% - 0s 0 0 881.09255 0 101 894.00000 881.09255 1.44% - 0s 0 0 881.10169 0 101 894.00000 881.10169 1.44% - 0s 0 0 881.11815 0 103 894.00000 881.11815 1.44% - 0s 0 0 881.14309 0 100 894.00000 881.14309 1.44% - 0s 0 0 881.14648 0 104 894.00000 881.14648 1.44% - 0s 0 0 881.15439 0 103 894.00000 881.15439 1.44% - 0s 0 0 881.15742 0 102 894.00000 881.15742 1.44% - 0s 0 0 881.16075 0 105 894.00000 881.16075 1.44% - 0s 0 0 881.16075 0 105 894.00000 881.16075 1.44% - 0s 0 2 881.16233 0 105 894.00000 881.16233 1.44% - 0s H 220 175 892.0000000 881.68757 1.16% 17.4 1s * 385 279 46 891.0000000 881.74421 1.04% 17.5 1s H 613 393 890.0000000 882.29749 0.87% 16.8 2s * 1112 468 44 889.0000000 883.18858 0.65% 17.1 3s * 1205 389 21 888.0000000 883.43830 0.51% 17.0 3s 1438 423 884.36139 30 78 888.00000 883.60417 0.50% 17.1 5s * 2491 209 32 887.0000000 884.62352 0.27% 15.6 6s Cutting planes: Gomory: 9 Zero half: 2 Explored 2969 nodes (44591 simplex iterations) in 6.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (31, 75), (32, 40), (33, 51), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 216 rows, 2850 columns and 40722 nonzeros Presolve time: 0.03s Presolved: 216 rows, 2850 columns, 40722 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.796446e+02, 257 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.64459 0 91 2906.00000 879.64459 69.7% - 0s Another try with MIP start H 0 0 895.0000000 879.64459 1.72% - 0s H 0 0 892.0000000 879.64459 1.39% - 0s 0 0 880.21100 0 94 892.00000 880.21100 1.32% - 0s 0 0 880.21100 0 91 892.00000 880.21100 1.32% - 0s 0 0 880.69369 0 94 892.00000 880.69369 1.27% - 0s 0 0 880.88035 0 96 892.00000 880.88035 1.25% - 0s 0 0 880.99148 0 98 892.00000 880.99148 1.23% - 0s 0 0 881.01336 0 102 892.00000 881.01336 1.23% - 0s 0 0 881.02614 0 104 892.00000 881.02614 1.23% - 0s 0 0 881.03304 0 102 892.00000 881.03304 1.23% - 0s 0 0 881.04232 0 103 892.00000 881.04232 1.23% - 0s 0 0 881.04675 0 103 892.00000 881.04675 1.23% - 0s 0 0 881.07606 0 104 892.00000 881.07606 1.22% - 0s 0 0 881.08523 0 106 892.00000 881.08523 1.22% - 0s 0 0 881.10215 0 105 892.00000 881.10215 1.22% - 0s 0 0 881.10615 0 107 892.00000 881.10615 1.22% - 0s 0 2 881.10924 0 106 892.00000 881.10924 1.22% - 0s * 153 116 43 891.0000000 881.94734 1.02% 14.8 0s * 894 490 45 890.0000000 882.63746 0.83% 16.1 2s * 2312 284 24 887.0000000 884.26851 0.31% 15.8 4s 3068 85 885.99405 21 75 887.00000 885.50351 0.17% 15.3 5s Cutting planes: Gomory: 8 Zero half: 2 Explored 3170 nodes (48415 simplex iterations) in 5.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.870000000000e+02, best bound 8.870000000000e+02, gap 0.0% adding cut for [(9, 20), (11, 32), (11, 39), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (37, 70), (37, 72), (39, 59), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (59, 73), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 74), (2, 34), (6, 49), (6, 30), (34, 64), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (63, 74)] adding cut for [(66, 67), (8, 54), (12, 66), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 219 rows, 2850 columns and 41293 nonzeros Presolve time: 0.03s Presolved: 219 rows, 2850 columns, 41293 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.796446e+02, 296 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.64459 0 91 2906.00000 879.64459 69.7% - 0s Another try with MIP start H 0 0 891.0000000 879.64459 1.27% - 0s 0 0 880.21100 0 94 891.00000 880.21100 1.21% - 0s 0 0 880.21100 0 91 891.00000 880.21100 1.21% - 0s 0 0 880.69369 0 94 891.00000 880.69369 1.16% - 0s 0 0 880.88035 0 96 891.00000 880.88035 1.14% - 0s 0 0 880.99148 0 98 891.00000 880.99148 1.12% - 0s 0 0 881.01336 0 102 891.00000 881.01336 1.12% - 0s 0 0 881.02614 0 104 891.00000 881.02614 1.12% - 0s 0 0 881.03304 0 102 891.00000 881.03304 1.12% - 0s 0 0 881.04232 0 103 891.00000 881.04232 1.12% - 0s 0 0 881.04675 0 103 891.00000 881.04675 1.12% - 0s 0 0 881.08021 0 103 891.00000 881.08021 1.11% - 0s 0 0 881.08769 0 104 891.00000 881.08769 1.11% - 0s 0 0 881.08788 0 106 891.00000 881.08788 1.11% - 0s 0 2 881.08857 0 106 891.00000 881.08857 1.11% - 0s H 54 54 890.0000000 881.22682 0.99% 20.2 0s * 362 225 16 889.0000000 882.06202 0.78% 17.7 1s 3079 950 cutoff 31 889.00000 885.03750 0.45% 16.2 5s * 4374 888 27 888.0000000 885.46512 0.29% 15.8 6s Cutting planes: Gomory: 14 MIR: 4 Zero half: 18 Explored 6395 nodes (94082 simplex iterations) in 8.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.880000000000e+02, best bound 8.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (21, 38), (21, 71), (23, 62), (23, 65), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 73), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (59, 73)] adding cut for [(33, 51), (33, 45), (4, 45), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(48, 49), (22, 48), (22, 29), (29, 75), (30, 46), (30, 49), (31, 75)] Optimize a model with 223 rows, 2850 columns and 41633 nonzeros Presolve time: 0.04s Presolved: 223 rows, 2850 columns, 41633 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.796806e+02, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.68064 0 88 2906.00000 879.68064 69.7% - 0s Another try with MIP start H 0 0 892.0000000 879.68064 1.38% - 0s 0 0 880.16880 0 88 892.00000 880.16880 1.33% - 0s 0 0 880.16880 0 88 892.00000 880.16880 1.33% - 0s 0 0 881.08361 0 92 892.00000 881.08361 1.22% - 0s 0 0 881.17063 0 98 892.00000 881.17063 1.21% - 0s 0 0 881.26165 0 95 892.00000 881.26165 1.20% - 0s 0 0 881.28359 0 97 892.00000 881.28359 1.20% - 0s 0 0 881.29033 0 97 892.00000 881.29033 1.20% - 0s 0 0 881.30257 0 97 892.00000 881.30257 1.20% - 0s 0 0 881.31178 0 100 892.00000 881.31178 1.20% - 0s 0 0 881.32177 0 99 892.00000 881.32177 1.20% - 0s 0 0 881.33229 0 100 892.00000 881.33229 1.20% - 0s 0 0 881.35388 0 101 892.00000 881.35388 1.19% - 0s 0 0 881.35637 0 103 892.00000 881.35637 1.19% - 0s 0 0 881.35737 0 103 892.00000 881.35737 1.19% - 0s 0 2 881.35800 0 103 892.00000 881.35800 1.19% - 0s H 54 54 891.0000000 881.40478 1.08% 20.1 0s * 134 108 26 889.0000000 881.74433 0.82% 16.3 0s H 600 333 888.0000000 882.93421 0.57% 14.5 1s 3392 269 886.53488 19 63 888.00000 885.86792 0.24% 14.6 5s Cutting planes: Gomory: 15 MIR: 11 Zero half: 7 Explored 3874 nodes (55238 simplex iterations) in 5.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.880000000000e+02, best bound 8.880000000000e+02, gap 0.0% adding cut for [(43, 65), (43, 44), (6, 58), (6, 30), (42, 44), (42, 57), (62, 70), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (23, 65), (23, 62), (24, 64), (24, 57), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(33, 41), (33, 45), (4, 45), (4, 50), (51, 56), (40, 73), (10, 40), (10, 26), (19, 51), (19, 25), (25, 50), (26, 56)] adding cut for [(32, 66), (39, 59), (8, 54), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] adding cut for [(2, 74), (2, 34), (48, 49), (22, 75), (22, 48), (31, 49), (29, 75), (29, 63), (63, 74)] Optimize a model with 227 rows, 2850 columns and 42021 nonzeros Presolve time: 0.03s Presolved: 227 rows, 2850 columns, 42021 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.796806e+02, 264 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.68064 0 88 2906.00000 879.68064 69.7% - 0s Another try with MIP start H 0 0 892.0000000 879.68064 1.38% - 0s 0 0 880.16880 0 88 892.00000 880.16880 1.33% - 0s 0 0 880.16880 0 88 892.00000 880.16880 1.33% - 0s 0 0 881.08361 0 91 892.00000 881.08361 1.22% - 0s 0 0 881.17668 0 94 892.00000 881.17668 1.21% - 0s 0 0 881.26328 0 96 892.00000 881.26328 1.20% - 0s 0 0 881.28820 0 93 892.00000 881.28820 1.20% - 0s 0 0 881.29845 0 100 892.00000 881.29845 1.20% - 0s 0 0 881.34790 0 102 892.00000 881.34790 1.19% - 0s 0 0 881.35503 0 101 892.00000 881.35503 1.19% - 0s 0 0 881.35660 0 104 892.00000 881.35660 1.19% - 0s 0 0 881.36085 0 101 892.00000 881.36085 1.19% - 0s 0 0 881.36139 0 101 892.00000 881.36139 1.19% - 0s 0 2 881.36405 0 101 892.00000 881.36405 1.19% - 0s * 994 463 40 889.0000000 882.54928 0.73% 17.8 2s 2103 590 886.00000 34 75 889.00000 884.34500 0.52% 17.7 5s * 4002 600 45 888.0000000 885.43294 0.29% 16.6 7s Cutting planes: Gomory: 9 MIR: 11 Zero half: 10 Explored 5274 nodes (82012 simplex iterations) in 8.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.880000000000e+02, best bound 8.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (9, 36), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 62), (22, 75), (23, 63), (23, 65), (29, 63), (29, 75), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (34, 64), (40, 73), (10, 40), (10, 41), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 67), (12, 54)] Optimize a model with 230 rows, 2850 columns and 42532 nonzeros Presolve time: 0.03s Presolved: 230 rows, 2850 columns, 42532 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797148e+02, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.71480 0 89 2906.00000 879.71480 69.7% - 0s Another try with MIP start H 0 0 909.0000000 879.71480 3.22% - 0s H 0 0 891.0000000 879.71480 1.27% - 0s 0 0 880.50152 0 96 891.00000 880.50152 1.18% - 0s 0 0 880.50152 0 89 891.00000 880.50152 1.18% - 0s 0 0 880.68318 0 95 891.00000 880.68318 1.16% - 0s 0 0 880.76934 0 100 891.00000 880.76934 1.15% - 0s 0 0 880.77100 0 101 891.00000 880.77100 1.15% - 0s 0 0 880.77913 0 101 891.00000 880.77913 1.15% - 0s 0 0 880.79126 0 102 891.00000 880.79126 1.15% - 0s 0 0 880.79572 0 104 891.00000 880.79572 1.15% - 0s 0 0 880.82140 0 103 891.00000 880.82140 1.14% - 0s 0 0 880.82625 0 105 891.00000 880.82625 1.14% - 0s 0 0 880.83233 0 104 891.00000 880.83233 1.14% - 0s 0 0 880.84608 0 100 891.00000 880.84608 1.14% - 0s 0 0 880.84921 0 104 891.00000 880.84921 1.14% - 0s 0 0 880.87036 0 104 891.00000 880.87036 1.14% - 0s 0 0 880.87045 0 106 891.00000 880.87045 1.14% - 0s 0 0 880.87104 0 105 891.00000 880.87104 1.14% - 0s 0 0 880.87145 0 106 891.00000 880.87145 1.14% - 0s 0 0 880.87145 0 104 891.00000 880.87145 1.14% - 0s 0 2 880.87602 0 104 891.00000 880.87602 1.14% - 0s * 1178 562 43 890.0000000 883.25600 0.76% 17.6 3s 2574 1096 887.41407 26 83 890.00000 884.29734 0.64% 16.3 5s H 3038 1191 889.0000000 884.55139 0.50% 16.0 5s 5406 1262 887.58182 43 71 889.00000 884.98312 0.45% 15.5 10s 11012 758 cutoff 34 889.00000 886.53968 0.28% 14.4 15s Cutting planes: Gomory: 13 Explored 12969 nodes (180706 simplex iterations) in 16.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (8, 54), (12, 54), (12, 66), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (33, 41), (33, 45), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 74), (2, 34), (6, 49), (6, 30), (34, 64), (48, 49), (17, 64), (22, 75), (22, 48), (29, 75), (29, 63), (63, 74)] adding cut for [(19, 51), (19, 56), (32, 39), (40, 73), (10, 40), (10, 51), (11, 39), (11, 59), (26, 32), (26, 56)] Optimize a model with 233 rows, 2850 columns and 43161 nonzeros Presolve time: 0.03s Presolved: 233 rows, 2850 columns, 43161 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797148e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.71480 0 89 2906.00000 879.71480 69.7% - 0s Another try with MIP start H 0 0 900.0000000 879.71480 2.25% - 0s H 0 0 891.0000000 879.71480 1.27% - 0s 0 0 880.33488 0 91 891.00000 880.33488 1.20% - 0s 0 0 880.33488 0 89 891.00000 880.33488 1.20% - 0s 0 0 880.68318 0 95 891.00000 880.68318 1.16% - 0s 0 0 880.76934 0 100 891.00000 880.76934 1.15% - 0s 0 0 880.77100 0 101 891.00000 880.77100 1.15% - 0s 0 0 880.77913 0 101 891.00000 880.77913 1.15% - 0s 0 0 880.79126 0 102 891.00000 880.79126 1.15% - 0s 0 0 880.79572 0 104 891.00000 880.79572 1.15% - 0s 0 0 880.82140 0 103 891.00000 880.82140 1.14% - 0s 0 0 880.82625 0 105 891.00000 880.82625 1.14% - 0s 0 0 880.83233 0 104 891.00000 880.83233 1.14% - 0s 0 0 880.84608 0 100 891.00000 880.84608 1.14% - 0s 0 0 880.84921 0 104 891.00000 880.84921 1.14% - 0s 0 0 880.87036 0 104 891.00000 880.87036 1.14% - 0s 0 0 880.87045 0 106 891.00000 880.87045 1.14% - 0s 0 0 880.87104 0 105 891.00000 880.87104 1.14% - 0s 0 0 880.87145 0 104 891.00000 880.87145 1.14% - 0s 0 0 880.87223 0 106 891.00000 880.87223 1.14% - 0s 0 0 880.87223 0 105 891.00000 880.87223 1.14% - 0s 0 2 880.87421 0 105 891.00000 880.87421 1.14% - 0s * 827 439 37 889.0000000 882.23910 0.76% 18.5 2s 1782 547 887.79362 41 69 889.00000 884.33135 0.53% 18.3 5s Cutting planes: Gomory: 10 Zero half: 4 Explored 6948 nodes (100554 simplex iterations) in 9.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(3, 63), (37, 70), (37, 72), (14, 58), (14, 28), (61, 71), (61, 72), (16, 58), (21, 71), (21, 38), (6, 16), (6, 38), (28, 53), (29, 62), (29, 63), (62, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (8, 15), (11, 32), (11, 39), (12, 66), (12, 39), (15, 60), (17, 50), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 74), (2, 23), (43, 65), (43, 44), (34, 64), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 236 rows, 2850 columns and 43472 nonzeros Presolve time: 0.04s Presolved: 236 rows, 2850 columns, 43472 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 287 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 899.0000000 879.72165 2.14% - 0s 0 0 880.20805 0 89 899.00000 880.20805 2.09% - 0s 0 0 880.20805 0 87 899.00000 880.20805 2.09% - 0s 0 0 880.74593 0 95 899.00000 880.74593 2.03% - 0s 0 0 880.94796 0 100 899.00000 880.94796 2.01% - 0s 0 0 881.11496 0 99 899.00000 881.11496 1.99% - 0s 0 0 881.14431 0 98 899.00000 881.14431 1.99% - 0s 0 0 881.14578 0 102 899.00000 881.14578 1.99% - 0s 0 2 881.14666 0 102 899.00000 881.14666 1.99% - 1s * 139 86 41 894.0000000 882.12255 1.33% 13.0 1s * 283 178 34 893.0000000 882.48055 1.18% 14.9 1s * 322 154 24 891.0000000 882.50070 0.95% 15.9 1s * 524 211 13 890.0000000 882.95372 0.79% 16.7 1s * 1696 345 28 889.0000000 884.65144 0.49% 17.0 4s 2154 406 885.62384 17 87 889.00000 884.88899 0.46% 16.8 5s Cutting planes: Gomory: 10 Zero half: 3 Explored 5454 nodes (82734 simplex iterations) in 8.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (11, 32), (11, 39), (34, 64), (14, 28), (14, 55), (15, 20), (15, 60), (24, 64), (24, 57), (50, 57), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(48, 49), (6, 58), (6, 30), (16, 38), (16, 58), (21, 38), (21, 71), (31, 49), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (29, 75), (3, 75), (22, 29), (22, 62), (23, 65), (23, 62), (63, 74)] Optimize a model with 239 rows, 2850 columns and 43851 nonzeros Presolve time: 0.03s Presolved: 239 rows, 2850 columns, 43851 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 264 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 895.0000000 879.72165 1.71% - 0s 0 0 880.20805 0 89 895.00000 880.20805 1.65% - 0s 0 0 880.20805 0 88 895.00000 880.20805 1.65% - 0s 0 0 880.84476 0 94 895.00000 880.84476 1.58% - 0s 0 0 881.02936 0 97 895.00000 881.02936 1.56% - 0s 0 0 881.11211 0 101 895.00000 881.11211 1.55% - 0s 0 0 881.19856 0 98 895.00000 881.19856 1.54% - 0s 0 0 881.23276 0 102 895.00000 881.23276 1.54% - 0s 0 0 881.23788 0 104 895.00000 881.23788 1.54% - 0s 0 2 881.24566 0 104 895.00000 881.24566 1.54% - 0s * 192 120 39 891.0000000 881.74044 1.04% 20.2 1s * 538 226 21 889.0000000 882.52850 0.73% 19.2 1s 2543 364 cutoff 24 889.00000 885.35484 0.41% 16.4 5s Cutting planes: Gomory: 11 MIR: 1 Zero half: 1 Explored 4977 nodes (74272 simplex iterations) in 7.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 30), (62, 70), (48, 49), (21, 38), (21, 71), (22, 62), (22, 48), (31, 49), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(33, 51), (33, 45), (4, 45), (40, 73), (10, 40), (11, 32), (11, 59), (19, 51), (19, 56), (26, 32), (26, 56), (59, 73)] adding cut for [(66, 67), (39, 66), (28, 53), (12, 67), (12, 60), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (20, 55)] adding cut for [(2, 44), (2, 74), (3, 63), (42, 43), (42, 44), (43, 65), (29, 75), (23, 65), (23, 29), (63, 74)] Optimize a model with 243 rows, 2850 columns and 44153 nonzeros Presolve time: 0.03s Presolved: 243 rows, 2850 columns, 44153 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 286 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 895.0000000 879.72165 1.71% - 0s 0 0 880.20805 0 89 895.00000 880.20805 1.65% - 0s 0 0 880.20805 0 87 895.00000 880.20805 1.65% - 0s 0 0 880.42951 0 98 895.00000 880.42951 1.63% - 0s 0 0 880.85829 0 96 895.00000 880.85829 1.58% - 0s 0 0 880.91912 0 98 895.00000 880.91912 1.57% - 0s 0 0 880.96186 0 99 895.00000 880.96186 1.57% - 0s 0 0 880.99492 0 99 895.00000 880.99492 1.56% - 0s 0 0 880.99518 0 101 895.00000 880.99518 1.56% - 0s 0 0 880.99930 0 99 895.00000 880.99930 1.56% - 0s 0 0 881.00011 0 99 895.00000 881.00011 1.56% - 0s 0 2 881.00488 0 99 895.00000 881.00488 1.56% - 1s * 43 33 32 892.0000000 882.14364 1.10% 17.5 1s * 233 127 23 890.0000000 882.80883 0.81% 16.6 1s * 1746 506 26 889.0000000 884.20979 0.54% 17.9 4s 2579 748 886.66187 32 82 889.00000 884.95588 0.45% 17.1 5s 7477 799 887.10669 28 76 889.00000 886.60415 0.27% 15.2 10s Cutting planes: Gomory: 5 MIR: 1 Zero half: 4 Explored 9265 nodes (134568 simplex iterations) in 11.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 49), (10, 26), (10, 40), (11, 32), (11, 59), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (28, 53), (29, 62), (29, 63), (31, 75), (32, 66), (37, 70), (37, 72), (38, 58), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (51, 56), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 244 rows, 2850 columns and 45281 nonzeros Presolve time: 0.03s Presolved: 244 rows, 2850 columns, 45281 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 269 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 898.0000000 879.72165 2.04% - 0s 0 0 880.20805 0 89 898.00000 880.20805 1.98% - 0s 0 0 880.20805 0 87 898.00000 880.20805 1.98% - 0s 0 0 880.41758 0 93 898.00000 880.41758 1.96% - 0s 0 0 880.60698 0 97 898.00000 880.60698 1.94% - 0s 0 0 880.68189 0 101 898.00000 880.68189 1.93% - 0s 0 0 880.71531 0 102 898.00000 880.71531 1.92% - 0s 0 0 880.73539 0 100 898.00000 880.73539 1.92% - 0s 0 0 880.77146 0 103 898.00000 880.77146 1.92% - 0s 0 0 881.02929 0 106 898.00000 881.02929 1.89% - 0s 0 0 881.06153 0 104 898.00000 881.06153 1.89% - 0s 0 0 881.07250 0 104 898.00000 881.07250 1.89% - 0s 0 2 881.07454 0 104 898.00000 881.07454 1.88% - 0s * 100 89 64 896.0000000 881.21633 1.65% 18.9 1s * 103 79 67 895.0000000 881.21633 1.54% 18.4 1s * 275 128 38 890.0000000 881.69794 0.93% 17.4 1s * 992 365 36 889.0000000 882.77036 0.70% 18.9 3s 2459 754 885.05541 19 92 889.00000 884.59545 0.50% 17.3 5s 6859 1158 887.46414 31 75 889.00000 885.94415 0.34% 15.8 10s Cutting planes: Gomory: 10 MIR: 5 Zero half: 5 Explored 10438 nodes (155000 simplex iterations) in 13.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(9, 20), (14, 55), (14, 58), (16, 38), (16, 58), (17, 64), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (29, 62), (29, 63), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (33, 45), (66, 67), (4, 45), (4, 50), (10, 33), (10, 40), (11, 32), (11, 66), (15, 60), (15, 36), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 74), (2, 34), (3, 74), (3, 75), (6, 49), (6, 30), (48, 49), (22, 75), (22, 48)] Optimize a model with 247 rows, 2850 columns and 45779 nonzeros Presolve time: 0.03s Presolved: 247 rows, 2850 columns, 45779 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 277 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 905.0000000 879.72165 2.79% - 0s H 0 0 904.0000000 879.72165 2.69% - 0s 0 0 880.20805 0 89 904.00000 880.20805 2.63% - 0s 0 0 880.20805 0 87 904.00000 880.20805 2.63% - 0s 0 0 880.43900 0 97 904.00000 880.43900 2.61% - 0s 0 0 880.83984 0 95 904.00000 880.83984 2.56% - 0s 0 0 880.88530 0 95 904.00000 880.88530 2.56% - 0s 0 0 880.93959 0 98 904.00000 880.93959 2.55% - 0s 0 0 880.98607 0 99 904.00000 880.98607 2.55% - 0s 0 0 881.00184 0 99 904.00000 881.00184 2.54% - 0s 0 0 881.01571 0 100 904.00000 881.01571 2.54% - 0s 0 0 881.02321 0 103 904.00000 881.02321 2.54% - 0s 0 0 881.05991 0 102 904.00000 881.05991 2.54% - 0s 0 0 881.07332 0 104 904.00000 881.07332 2.54% - 0s 0 0 881.15805 0 99 904.00000 881.15805 2.53% - 0s 0 0 881.16929 0 103 904.00000 881.16929 2.53% - 1s 0 0 881.18009 0 105 904.00000 881.18009 2.52% - 1s 0 0 881.18009 0 104 904.00000 881.18009 2.52% - 1s 0 2 881.18308 0 104 904.00000 881.18308 2.52% - 1s * 111 111 75 898.0000000 881.45066 1.84% 17.8 1s * 207 177 63 897.0000000 881.60369 1.72% 16.0 1s * 467 344 42 895.0000000 882.20185 1.43% 16.6 1s * 469 278 44 893.0000000 882.20185 1.21% 16.5 1s * 572 247 24 891.0000000 882.29357 0.98% 16.6 1s H 700 275 890.0000000 882.59836 0.83% 17.1 2s * 787 290 33 889.0000000 882.59836 0.72% 18.0 3s 1492 275 885.63376 23 86 889.00000 884.72396 0.48% 17.8 5s Cutting planes: Gomory: 11 MIR: 8 Zero half: 12 Explored 4729 nodes (72935 simplex iterations) in 8.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (23, 29), (23, 65), (24, 44), (24, 57), (29, 62), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (9, 20), (34, 64), (15, 20), (15, 60), (17, 64), (17, 50), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(33, 45), (4, 45), (40, 73), (10, 33), (10, 40), (11, 73), (11, 59)] Optimize a model with 250 rows, 2850 columns and 46252 nonzeros Presolve time: 0.04s Presolved: 250 rows, 2850 columns, 46252 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 905.0000000 879.72165 2.79% - 0s H 0 0 904.0000000 879.72165 2.69% - 0s 0 0 880.20805 0 89 904.00000 880.20805 2.63% - 0s 0 0 880.20805 0 87 904.00000 880.20805 2.63% - 0s 0 0 880.42951 0 98 904.00000 880.42951 2.61% - 0s 0 0 880.85829 0 97 904.00000 880.85829 2.56% - 0s 0 0 880.91912 0 98 904.00000 880.91912 2.55% - 0s 0 0 880.96186 0 100 904.00000 880.96186 2.55% - 0s 0 0 880.99498 0 101 904.00000 880.99498 2.54% - 0s 0 0 880.99518 0 101 904.00000 880.99518 2.54% - 0s 0 0 880.99930 0 100 904.00000 880.99930 2.54% - 0s 0 0 881.05061 0 104 904.00000 881.05061 2.54% - 0s 0 0 881.08284 0 107 904.00000 881.08284 2.54% - 0s 0 0 881.09177 0 105 904.00000 881.09177 2.53% - 0s 0 0 881.09515 0 106 904.00000 881.09515 2.53% - 0s 0 0 881.12046 0 105 904.00000 881.12046 2.53% - 0s 0 0 881.12907 0 106 904.00000 881.12907 2.53% - 0s 0 0 881.12907 0 106 904.00000 881.12907 2.53% - 1s 0 2 881.12971 0 106 904.00000 881.12971 2.53% - 1s H 55 55 901.0000000 881.13920 2.20% 21.9 1s * 371 275 54 897.0000000 882.04045 1.67% 18.2 2s * 523 356 30 895.0000000 882.16325 1.43% 17.4 2s H 700 407 894.0000000 882.57004 1.28% 17.4 2s * 780 429 48 892.0000000 882.57004 1.06% 18.5 3s H 993 442 890.0000000 882.57004 0.83% 19.0 4s 1106 470 886.87790 32 103 890.00000 882.58414 0.83% 18.9 5s * 2006 582 37 889.0000000 884.50354 0.51% 18.9 6s 4961 837 887.50000 33 76 889.00000 886.10794 0.33% 16.2 10s Cutting planes: Gomory: 9 MIR: 7 Zero half: 7 Explored 7992 nodes (118046 simplex iterations) in 13.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (61, 71), (61, 72), (16, 58), (21, 71), (21, 38), (23, 65), (23, 62), (6, 16), (6, 38), (28, 58), (28, 53), (62, 70)] adding cut for [(32, 73), (33, 51), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (15, 20), (15, 60), (19, 51), (19, 56), (20, 55), (39, 66), (26, 56), (60, 67)] adding cut for [(4, 45), (4, 25), (41, 45), (17, 64), (50, 57), (24, 64), (24, 57), (25, 50)] adding cut for [(3, 63), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49)] Optimize a model with 254 rows, 2850 columns and 46697 nonzeros Presolve time: 0.04s Presolved: 254 rows, 2850 columns, 46697 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 273 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 903.0000000 879.72165 2.58% - 0s 0 0 880.20805 0 89 903.00000 880.20805 2.52% - 0s 0 0 880.20805 0 87 903.00000 880.20805 2.52% - 0s 0 0 880.73813 0 95 903.00000 880.73813 2.47% - 0s 0 0 881.04798 0 94 903.00000 881.04798 2.43% - 0s 0 0 881.11953 0 96 903.00000 881.11953 2.42% - 0s 0 0 881.12076 0 99 903.00000 881.12076 2.42% - 0s 0 0 881.14448 0 100 903.00000 881.14448 2.42% - 0s 0 0 881.14953 0 101 903.00000 881.14953 2.42% - 0s 0 0 881.14953 0 101 903.00000 881.14953 2.42% - 0s 0 2 881.18436 0 101 903.00000 881.18436 2.42% - 1s * 84 79 49 896.0000000 881.25054 1.65% 21.2 1s * 360 158 18 890.0000000 882.05631 0.89% 19.4 1s * 579 214 24 889.0000000 882.65459 0.71% 18.9 1s 2669 710 886.87784 22 83 889.00000 885.26652 0.42% 17.1 5s 7340 680 887.50000 28 67 889.00000 886.82353 0.24% 14.9 10s Cutting planes: Gomory: 9 Zero half: 3 Explored 8650 nodes (123975 simplex iterations) in 11.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (24, 57), (24, 64), (28, 53), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65), (70, 72)] adding cut for [(32, 56), (33, 45), (4, 45), (4, 50), (39, 66), (40, 73), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (15, 36), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (60, 67)] Optimize a model with 256 rows, 2850 columns and 47232 nonzeros Presolve time: 0.04s Presolved: 256 rows, 2850 columns, 47232 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 88 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 910.0000000 879.72165 3.33% - 0s H 0 0 902.0000000 879.72165 2.47% - 0s 0 0 880.20805 0 88 902.00000 880.20805 2.42% - 0s 0 0 880.20805 0 87 902.00000 880.20805 2.42% - 0s 0 0 880.84476 0 94 902.00000 880.84476 2.35% - 0s 0 0 880.98939 0 99 902.00000 880.98939 2.33% - 0s 0 0 881.10702 0 97 902.00000 881.10702 2.32% - 0s 0 0 881.16230 0 102 902.00000 881.16230 2.31% - 0s 0 0 881.23567 0 100 902.00000 881.23567 2.30% - 0s 0 0 881.23567 0 101 902.00000 881.23567 2.30% - 0s 0 0 881.23817 0 100 902.00000 881.23817 2.30% - 0s 0 0 881.24405 0 100 902.00000 881.24405 2.30% - 0s 0 2 881.24453 0 100 902.00000 881.24453 2.30% - 1s H 253 225 901.0000000 881.71437 2.14% 17.6 1s * 599 256 30 892.0000000 882.02339 1.12% 17.4 1s H 700 241 890.0000000 882.24030 0.87% 17.3 2s 2305 820 885.66529 23 71 890.00000 884.53008 0.61% 17.6 5s 6147 2087 888.46429 24 75 890.00000 885.73770 0.48% 16.2 10s * 7459 1953 25 889.0000000 885.97213 0.34% 15.9 11s 10323 1687 887.63636 25 66 889.00000 886.62712 0.27% 15.5 15s Cutting planes: Gomory: 11 MIR: 2 Zero half: 9 Explored 13677 nodes (197409 simplex iterations) in 17.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (11, 32), (11, 39), (12, 39), (12, 54), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (32, 66), (37, 70), (37, 72), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(3, 75), (4, 25), (4, 45), (10, 26), (10, 40), (19, 51), (19, 56), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 63), (29, 75), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (59, 73)] Optimize a model with 258 rows, 2850 columns and 47863 nonzeros Presolve time: 0.04s Presolved: 258 rows, 2850 columns, 47863 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 246 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 88 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 896.0000000 879.72165 1.82% - 0s 0 0 880.20805 0 88 896.00000 880.20805 1.76% - 0s 0 0 880.20805 0 87 896.00000 880.20805 1.76% - 0s 0 0 880.43730 0 93 896.00000 880.43730 1.74% - 0s 0 0 880.64272 0 100 896.00000 880.64272 1.71% - 0s 0 0 880.70445 0 102 896.00000 880.70445 1.71% - 0s 0 0 880.73324 0 101 896.00000 880.73324 1.70% - 0s 0 0 880.73324 0 102 896.00000 880.73324 1.70% - 0s 0 0 880.74068 0 103 896.00000 880.74068 1.70% - 0s 0 0 880.80923 0 101 896.00000 880.80923 1.70% - 0s 0 0 880.84455 0 103 896.00000 880.84455 1.69% - 0s 0 0 880.85135 0 101 896.00000 880.85135 1.69% - 0s 0 0 880.86004 0 104 896.00000 880.86004 1.69% - 0s 0 0 880.86004 0 105 896.00000 880.86004 1.69% - 0s 0 0 880.86013 0 104 896.00000 880.86013 1.69% - 0s 0 0 880.86082 0 105 896.00000 880.86082 1.69% - 0s 0 2 880.87397 0 105 896.00000 880.87397 1.69% - 1s H 94 92 895.0000000 881.13449 1.55% 19.3 1s * 170 143 51 894.0000000 881.18486 1.43% 17.7 1s * 360 227 29 891.0000000 881.74130 1.04% 18.0 1s H 993 466 890.0000000 882.82205 0.81% 20.7 4s 1679 562 886.66042 27 72 890.00000 884.56490 0.61% 19.9 5s H 1741 492 889.0000000 884.62681 0.49% 19.7 5s 4921 801 887.85671 41 74 889.00000 885.62006 0.38% 18.0 10s Cutting planes: Gomory: 4 MIR: 2 Zero half: 12 Explored 8903 nodes (144400 simplex iterations) in 13.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (61, 71), (61, 72), (21, 71), (21, 38), (23, 65), (23, 62), (6, 30), (6, 38), (62, 70)] adding cut for [(32, 73), (32, 56), (17, 64), (50, 57), (19, 51), (19, 25), (24, 64), (24, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (9, 36), (11, 39), (11, 59), (12, 67), (12, 60), (15, 36), (15, 60)] adding cut for [(3, 63), (48, 49), (22, 75), (22, 48), (31, 49), (29, 75), (29, 63)] Optimize a model with 262 rows, 2850 columns and 48155 nonzeros Presolve time: 0.04s Presolved: 262 rows, 2850 columns, 48155 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 909.0000000 879.72165 3.22% - 0s 0 0 880.20805 0 89 909.00000 880.20805 3.17% - 0s 0 0 880.20805 0 87 909.00000 880.20805 3.17% - 0s 0 0 880.73813 0 95 909.00000 880.73813 3.11% - 0s 0 0 881.04798 0 94 909.00000 881.04798 3.08% - 0s 0 0 881.12043 0 96 909.00000 881.12043 3.07% - 0s 0 0 881.12879 0 100 909.00000 881.12879 3.07% - 0s 0 0 881.12879 0 100 909.00000 881.12879 3.07% - 1s 0 2 881.14036 0 100 909.00000 881.14036 3.06% - 1s * 72 60 59 896.0000000 881.99370 1.56% 18.1 1s H 88 52 893.0000000 882.25181 1.20% 18.9 1s * 249 159 28 892.0000000 882.57747 1.06% 17.8 2s H 600 303 891.0000000 883.35370 0.86% 17.1 2s * 1278 414 39 890.0000000 883.81703 0.69% 18.6 4s 1467 430 886.15603 25 77 890.00000 884.05662 0.67% 18.5 5s * 3432 903 41 889.0000000 885.46023 0.40% 17.5 7s 5500 831 887.00000 32 77 889.00000 886.39533 0.29% 16.7 10s Cutting planes: Gomory: 8 MIR: 1 Zero half: 2 Explored 7460 nodes (116866 simplex iterations) in 12.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 54), (12, 66), (12, 67), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (32, 66), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 74), (2, 34), (34, 64), (48, 49), (17, 64), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49), (63, 74)] Optimize a model with 264 rows, 2850 columns and 48749 nonzeros Presolve time: 0.04s Presolved: 264 rows, 2850 columns, 48749 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.797217e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 879.72165 0 87 2906.00000 879.72165 69.7% - 0s Another try with MIP start H 0 0 895.0000000 879.72165 1.71% - 0s 0 0 880.20805 0 89 895.00000 880.20805 1.65% - 0s 0 0 880.20805 0 87 895.00000 880.20805 1.65% - 0s 0 0 880.74593 0 95 895.00000 880.74593 1.59% - 0s 0 0 880.94796 0 100 895.00000 880.94796 1.57% - 0s 0 0 881.06482 0 95 895.00000 881.06482 1.56% - 0s 0 0 881.13862 0 103 895.00000 881.13862 1.55% - 0s 0 0 881.20321 0 98 895.00000 881.20321 1.54% - 0s 0 0 881.20321 0 100 895.00000 881.20321 1.54% - 0s 0 0 881.21153 0 101 895.00000 881.21153 1.54% - 0s 0 2 881.21173 0 101 895.00000 881.21173 1.54% - 0s * 338 234 64 892.0000000 881.86038 1.14% 15.8 1s * 940 432 47 890.0000000 882.84505 0.80% 17.9 3s 2212 691 887.52632 21 73 890.00000 884.90048 0.57% 17.3 5s * 6004 1286 36 889.0000000 886.26250 0.31% 16.0 9s 6196 1265 887.01624 24 79 889.00000 886.31388 0.30% 16.0 10s Cutting planes: Gomory: 11 MIR: 7 Zero half: 8 Explored 9431 nodes (138373 simplex iterations) in 13.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 57), (24, 64), (29, 62), (29, 75), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (33, 45), (4, 45), (4, 50), (39, 59), (40, 73), (10, 33), (10, 40), (11, 32), (11, 39), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (8, 54), (9, 20), (12, 66), (12, 54), (15, 20), (15, 60), (60, 67)] Optimize a model with 267 rows, 2850 columns and 49256 nonzeros Presolve time: 0.04s Presolved: 267 rows, 2850 columns, 49256 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.810477e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.04765 0 95 2906.00000 881.04765 69.7% - 0s Another try with MIP start H 0 0 893.0000000 881.04765 1.34% - 0s 0 0 881.78960 0 97 893.00000 881.78960 1.26% - 0s 0 0 881.78960 0 95 893.00000 881.78960 1.26% - 0s 0 0 881.91016 0 98 893.00000 881.91016 1.24% - 0s 0 0 882.07403 0 98 893.00000 882.07403 1.22% - 0s 0 0 882.09851 0 100 893.00000 882.09851 1.22% - 0s 0 0 882.14324 0 102 893.00000 882.14324 1.22% - 0s 0 0 882.14710 0 103 893.00000 882.14710 1.22% - 0s 0 0 882.16281 0 102 893.00000 882.16281 1.21% - 0s 0 0 882.18884 0 104 893.00000 882.18884 1.21% - 0s 0 0 882.23446 0 101 893.00000 882.23446 1.21% - 0s 0 0 882.24251 0 104 893.00000 882.24251 1.20% - 0s 0 0 882.24382 0 106 893.00000 882.24382 1.20% - 0s 0 0 882.25007 0 104 893.00000 882.25007 1.20% - 0s 0 0 882.25089 0 106 893.00000 882.25089 1.20% - 0s 0 0 882.26156 0 104 893.00000 882.26156 1.20% - 0s 0 0 882.26189 0 105 893.00000 882.26189 1.20% - 0s 0 0 882.26595 0 106 893.00000 882.26595 1.20% - 0s 0 2 882.27912 0 105 893.00000 882.27912 1.20% - 0s * 422 221 30 891.0000000 883.17246 0.88% 18.2 1s 2217 829 887.95288 29 71 891.00000 885.85341 0.58% 17.8 5s * 5478 715 31 889.0000000 886.78472 0.25% 16.2 8s Cutting planes: Gomory: 9 MIR: 1 Zero half: 7 Explored 6686 nodes (102637 simplex iterations) in 9.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.890000000000e+02, best bound 8.890000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 45), (6, 49), (6, 58), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 45), (25, 50), (29, 63), (29, 75), (34, 64), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 66), (66, 67), (39, 59), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60)] Optimize a model with 269 rows, 2850 columns and 49829 nonzeros Presolve time: 0.04s Presolved: 269 rows, 2850 columns, 49829 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.813101e+02, 218 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.31013 0 95 2906.00000 881.31013 69.7% - 0s Another try with MIP start H 0 0 894.0000000 881.31013 1.42% - 0s 0 0 882.05603 0 97 894.00000 882.05603 1.34% - 0s 0 0 882.05603 0 95 894.00000 882.05603 1.34% - 0s 0 0 882.05872 0 98 894.00000 882.05872 1.34% - 0s 0 0 882.10288 0 99 894.00000 882.10288 1.33% - 0s 0 0 882.16349 0 102 894.00000 882.16349 1.32% - 0s 0 0 882.23595 0 104 894.00000 882.23595 1.32% - 0s 0 0 882.25544 0 105 894.00000 882.25544 1.31% - 0s 0 0 882.26140 0 106 894.00000 882.26140 1.31% - 0s 0 0 882.26590 0 108 894.00000 882.26590 1.31% - 0s 0 0 882.26590 0 108 894.00000 882.26590 1.31% - 0s 0 2 882.26595 0 107 894.00000 882.26595 1.31% - 0s * 237 181 23 892.0000000 882.95046 1.01% 15.9 1s * 465 273 18 891.0000000 883.37467 0.86% 17.3 1s * 915 373 25 890.0000000 884.95551 0.57% 18.6 3s 2311 442 cutoff 29 890.00000 886.66421 0.37% 17.0 5s Cutting planes: Gomory: 7 MIR: 1 Zero half: 5 Explored 5081 nodes (77413 simplex iterations) in 8.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(16, 58), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 28), (61, 71), (61, 72), (48, 49), (21, 71), (21, 38), (22, 49), (22, 62), (55, 58), (6, 16), (6, 38), (29, 75), (29, 62)] adding cut for [(32, 73), (66, 67), (39, 66), (40, 73), (9, 36), (10, 40), (10, 41), (11, 32), (11, 39), (15, 20), (15, 60), (20, 36), (60, 67)] adding cut for [(2, 74), (2, 63), (43, 65), (43, 44), (34, 64), (23, 65), (23, 63), (24, 64), (24, 57), (42, 44), (42, 57)] adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (4, 45), (17, 50), (25, 50), (26, 51), (26, 56)] Optimize a model with 273 rows, 2850 columns and 50221 nonzeros Presolve time: 0.04s Presolved: 273 rows, 2850 columns, 50221 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.814457e+02, 262 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.44573 0 91 2906.00000 881.44573 69.7% - 0s Another try with MIP start H 0 0 895.0000000 881.44573 1.51% - 0s 0 0 882.03433 0 94 895.00000 882.03433 1.45% - 0s 0 0 882.03433 0 91 895.00000 882.03433 1.45% - 0s 0 0 882.10424 0 98 895.00000 882.10424 1.44% - 0s 0 0 882.21799 0 101 895.00000 882.21799 1.43% - 0s 0 0 882.23211 0 103 895.00000 882.23211 1.43% - 0s 0 0 882.23211 0 104 895.00000 882.23211 1.43% - 0s 0 0 882.27038 0 101 895.00000 882.27038 1.42% - 0s 0 0 882.29096 0 103 895.00000 882.29096 1.42% - 0s 0 0 882.30731 0 104 895.00000 882.30731 1.42% - 0s 0 0 882.33620 0 106 895.00000 882.33620 1.41% - 0s 0 0 882.35134 0 108 895.00000 882.35134 1.41% - 0s 0 0 882.35790 0 110 895.00000 882.35790 1.41% - 0s 0 0 882.36960 0 111 895.00000 882.36960 1.41% - 0s 0 0 882.37006 0 110 895.00000 882.37006 1.41% - 0s 0 0 882.37006 0 110 895.00000 882.37006 1.41% - 0s 0 2 882.37166 0 109 895.00000 882.37166 1.41% - 0s * 382 242 25 892.0000000 883.17423 0.99% 17.6 1s H 791 368 891.0000000 884.32021 0.75% 18.7 3s * 1429 360 35 890.0000000 885.74904 0.48% 18.5 4s 1900 414 887.97429 26 74 890.00000 886.25143 0.42% 18.0 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 11 Explored 5367 nodes (84827 simplex iterations) in 9.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (11, 39), (11, 73), (34, 64), (14, 53), (14, 55), (15, 20), (15, 60), (17, 64), (17, 50), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 74), (2, 44), (3, 63), (43, 65), (29, 75), (29, 62), (23, 65), (23, 62), (24, 44), (24, 57), (31, 75), (42, 43), (42, 57), (63, 74)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (28, 58), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72)] Optimize a model with 276 rows, 2850 columns and 50641 nonzeros Presolve time: 0.04s Presolved: 276 rows, 2850 columns, 50641 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.814457e+02, 262 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.44573 0 92 2906.00000 881.44573 69.7% - 0s Another try with MIP start H 0 0 895.0000000 881.44573 1.51% - 0s 0 0 882.03433 0 95 895.00000 882.03433 1.45% - 0s 0 0 882.03433 0 91 895.00000 882.03433 1.45% - 0s 0 0 882.10424 0 98 895.00000 882.10424 1.44% - 0s 0 0 882.21799 0 101 895.00000 882.21799 1.43% - 0s 0 0 882.23211 0 103 895.00000 882.23211 1.43% - 0s 0 0 882.23211 0 104 895.00000 882.23211 1.43% - 0s 0 0 882.27038 0 101 895.00000 882.27038 1.42% - 0s 0 0 882.29096 0 103 895.00000 882.29096 1.42% - 0s 0 0 882.30719 0 104 895.00000 882.30719 1.42% - 0s 0 0 882.33546 0 104 895.00000 882.33546 1.42% - 0s 0 0 882.34184 0 106 895.00000 882.34184 1.41% - 0s 0 0 882.34515 0 108 895.00000 882.34515 1.41% - 0s 0 0 882.34584 0 109 895.00000 882.34584 1.41% - 0s 0 0 882.34584 0 109 895.00000 882.34584 1.41% - 0s 0 2 882.34641 0 109 895.00000 882.34641 1.41% - 0s * 208 158 27 893.0000000 883.50939 1.06% 16.3 1s H 240 140 891.0000000 883.71187 0.82% 16.5 1s H 825 351 890.0000000 884.75957 0.59% 17.8 2s 2937 187 888.00463 25 76 890.00000 887.58135 0.27% 15.8 5s Explored 3422 nodes (52777 simplex iterations) in 5.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (21, 71), (21, 38), (23, 65), (23, 62), (6, 30), (6, 38), (62, 70), (63, 74)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 39), (8, 54), (9, 36), (12, 67), (12, 60), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (20, 55)] adding cut for [(32, 56), (19, 51), (19, 25), (34, 64), (11, 32), (11, 59), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(3, 75), (48, 49), (22, 48), (22, 29), (29, 75), (31, 49)] Optimize a model with 280 rows, 2850 columns and 51013 nonzeros Presolve time: 0.04s Presolved: 280 rows, 2850 columns, 51013 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.814923e+02, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.49229 0 92 2906.00000 881.49229 69.7% - 0s Another try with MIP start H 0 0 896.0000000 881.49229 1.62% - 0s 0 0 881.94630 0 100 896.00000 881.94630 1.57% - 0s 0 0 881.94630 0 92 896.00000 881.94630 1.57% - 0s 0 0 882.22772 0 97 896.00000 882.22772 1.54% - 0s 0 0 882.33873 0 99 896.00000 882.33873 1.52% - 0s 0 0 882.38315 0 102 896.00000 882.38315 1.52% - 0s 0 0 882.43785 0 102 896.00000 882.43785 1.51% - 0s 0 0 882.45327 0 103 896.00000 882.45327 1.51% - 0s 0 0 882.45428 0 104 896.00000 882.45428 1.51% - 0s 0 2 882.45449 0 104 896.00000 882.45449 1.51% - 0s * 695 510 51 895.0000000 884.24908 1.20% 17.4 3s * 884 536 50 894.0000000 884.24908 1.09% 18.3 3s H 965 479 891.0000000 884.24908 0.76% 18.8 3s 1159 540 889.21970 45 78 891.00000 884.24908 0.76% 19.4 5s H 1496 564 890.0000000 885.15440 0.54% 19.5 5s 4947 217 888.39549 36 74 890.00000 888.17730 0.20% 16.1 10s Cutting planes: Gomory: 13 MIR: 3 Zero half: 10 Explored 5295 nodes (83003 simplex iterations) in 10.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 30), (10, 26), (10, 40), (11, 32), (11, 59), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 56), (32, 73), (37, 70), (37, 72), (38, 58), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (51, 56), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(66, 67), (39, 66), (28, 53), (12, 67), (12, 60), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55)] Optimize a model with 282 rows, 2850 columns and 51629 nonzeros Presolve time: 0.04s Presolved: 282 rows, 2850 columns, 51629 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.814923e+02, 280 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.49229 0 93 2906.00000 881.49229 69.7% - 0s Another try with MIP start H 0 0 896.0000000 881.49229 1.62% - 0s 0 0 882.12235 0 96 896.00000 882.12235 1.55% - 0s 0 0 882.12235 0 92 896.00000 882.12235 1.55% - 0s 0 0 882.22772 0 98 896.00000 882.22772 1.54% - 0s 0 0 882.35890 0 100 896.00000 882.35890 1.52% - 0s 0 0 882.40366 0 99 896.00000 882.40366 1.52% - 0s 0 0 882.42573 0 101 896.00000 882.42573 1.51% - 0s 0 0 882.50713 0 101 896.00000 882.50713 1.51% - 0s 0 0 882.52182 0 102 896.00000 882.52182 1.50% - 0s 0 0 882.53616 0 106 896.00000 882.53616 1.50% - 0s 0 0 882.53747 0 107 896.00000 882.53747 1.50% - 0s 0 0 882.54614 0 106 896.00000 882.54614 1.50% - 0s 0 0 882.55816 0 107 896.00000 882.55816 1.50% - 0s 0 0 882.56011 0 106 896.00000 882.56011 1.50% - 0s 0 0 882.56841 0 107 896.00000 882.56841 1.50% - 0s 0 0 882.57301 0 108 896.00000 882.57301 1.50% - 0s 0 0 882.57979 0 107 896.00000 882.57979 1.50% - 0s 0 0 882.58033 0 107 896.00000 882.58033 1.50% - 1s 0 2 882.59001 0 107 896.00000 882.59001 1.50% - 1s * 383 296 54 895.0000000 884.19444 1.21% 17.7 1s * 423 245 24 893.0000000 884.29310 0.98% 18.3 1s * 510 229 16 892.0000000 884.81298 0.81% 17.8 1s 2282 915 887.52525 26 83 892.00000 886.33276 0.64% 17.8 5s * 2737 992 36 891.0000000 886.58743 0.50% 17.4 5s * 4648 946 33 890.0000000 887.37500 0.29% 16.7 8s 6248 628 888.93062 32 76 890.00000 888.08226 0.22% 16.1 10s Cutting planes: Gomory: 4 MIR: 1 Zero half: 9 Explored 7246 nodes (111251 simplex iterations) in 10.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (19, 25), (19, 51), (22, 29), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (32, 73), (34, 64), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (63, 74)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 55), (14, 28), (48, 49), (21, 71), (21, 38), (55, 58), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(66, 67), (8, 36), (8, 54), (9, 20), (11, 66), (11, 39), (12, 39), (12, 54), (15, 20), (15, 60), (60, 67)] adding cut for [(33, 45), (4, 45), (4, 17), (40, 41), (10, 33), (10, 40)] Optimize a model with 286 rows, 2850 columns and 52112 nonzeros Presolve time: 0.04s Presolved: 286 rows, 2850 columns, 52112 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.814923e+02, 319 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.49229 0 92 2906.00000 881.49229 69.7% - 0s Another try with MIP start H 0 0 895.0000000 881.49229 1.51% - 0s 0 0 882.22772 0 98 895.00000 882.22772 1.43% - 0s 0 0 882.22772 0 92 895.00000 882.22772 1.43% - 0s 0 0 882.22772 0 98 895.00000 882.22772 1.43% - 0s 0 0 882.35890 0 100 895.00000 882.35890 1.41% - 0s 0 0 882.40366 0 99 895.00000 882.40366 1.41% - 0s 0 0 882.42573 0 101 895.00000 882.42573 1.40% - 0s 0 0 882.50713 0 101 895.00000 882.50713 1.40% - 0s 0 0 882.52182 0 103 895.00000 882.52182 1.39% - 0s 0 0 882.52801 0 104 895.00000 882.52801 1.39% - 0s 0 0 882.53456 0 106 895.00000 882.53456 1.39% - 0s 0 0 882.54177 0 106 895.00000 882.54177 1.39% - 0s 0 0 882.54624 0 110 895.00000 882.54624 1.39% - 0s 0 0 882.56979 0 107 895.00000 882.56979 1.39% - 0s 0 2 882.57030 0 107 895.00000 882.57030 1.39% - 1s * 195 149 41 894.0000000 883.10615 1.22% 19.3 1s * 1059 541 36 893.0000000 884.72768 0.93% 19.3 4s H 1240 512 892.0000000 885.24151 0.76% 18.9 4s * 1404 457 26 891.0000000 885.73967 0.59% 18.7 4s 1501 473 889.61185 28 98 891.00000 885.81631 0.58% 18.7 5s * 1898 499 40 890.0000000 885.81631 0.47% 19.0 6s Cutting planes: Gomory: 7 MIR: 2 Zero half: 6 Explored 4106 nodes (69100 simplex iterations) in 8.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (6, 38), (6, 49), (21, 38), (21, 71), (22, 29), (22, 48), (23, 62), (23, 65), (29, 75), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(66, 67), (36, 54), (8, 36), (9, 55), (11, 66), (11, 39), (12, 39), (12, 54), (15, 20), (15, 60), (20, 55), (60, 67)] adding cut for [(32, 73), (32, 56), (34, 64), (24, 64), (24, 57), (50, 57), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (59, 73)] Optimize a model with 289 rows, 2850 columns and 52521 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 288 rows, 2850 columns, 52455 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 93 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 898.0000000 881.58532 1.83% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 93 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 101 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 104 895.00000 882.97383 1.34% - 0s 0 0 882.97604 0 107 895.00000 882.97604 1.34% - 0s 0 0 883.01985 0 104 895.00000 883.01985 1.34% - 0s 0 0 883.11857 0 105 895.00000 883.11857 1.33% - 0s 0 0 883.14866 0 107 895.00000 883.14866 1.32% - 0s 0 0 883.15545 0 106 895.00000 883.15545 1.32% - 0s 0 0 883.22487 0 106 895.00000 883.22487 1.32% - 0s 0 0 883.22906 0 108 895.00000 883.22906 1.32% - 0s 0 0 883.23521 0 111 895.00000 883.23521 1.31% - 0s 0 2 883.23743 0 111 895.00000 883.23743 1.31% - 0s * 191 134 38 894.0000000 883.79470 1.14% 18.3 1s * 251 149 41 893.0000000 883.93322 1.02% 17.6 1s H 523 279 892.0000000 884.64173 0.82% 17.9 1s H 1002 437 891.0000000 885.27513 0.64% 18.8 3s 1951 515 888.14794 26 89 891.00000 886.44303 0.51% 17.7 5s * 4685 820 29 890.0000000 887.58248 0.27% 16.2 8s 5974 295 888.90284 23 93 890.00000 888.53107 0.17% 15.5 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 4 Explored 6305 nodes (95099 simplex iterations) in 10.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (6, 30), (6, 49), (10, 26), (10, 40), (15, 20), (15, 60), (16, 38), (16, 58), (17, 64), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (26, 56), (29, 75), (30, 46), (32, 66), (32, 73), (34, 64), (34, 74), (37, 70), (37, 72), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (48, 49), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(36, 54), (9, 36), (11, 39), (11, 59), (12, 39), (12, 54)] adding cut for [(33, 51), (33, 45), (45, 51)] Optimize a model with 292 rows, 2850 columns and 53580 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 291 rows, 2850 columns, 53514 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 93 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 898.0000000 881.58532 1.83% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 94 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 100 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 105 895.00000 882.97383 1.34% - 0s 0 0 883.03081 0 104 895.00000 883.03081 1.34% - 0s 0 0 883.14227 0 106 895.00000 883.14227 1.32% - 0s 0 0 883.25570 0 106 895.00000 883.25570 1.31% - 0s 0 0 883.29212 0 109 895.00000 883.29212 1.31% - 0s 0 0 883.37571 0 107 895.00000 883.37571 1.30% - 0s 0 0 883.38898 0 108 895.00000 883.38898 1.30% - 0s 0 0 883.39708 0 108 895.00000 883.39708 1.30% - 0s 0 0 883.41454 0 109 895.00000 883.41454 1.29% - 0s 0 0 883.41871 0 113 895.00000 883.41871 1.29% - 0s 0 2 883.42453 0 113 895.00000 883.42453 1.29% - 0s * 368 218 23 893.0000000 884.02975 1.00% 17.4 1s * 1056 454 31 892.0000000 885.11028 0.77% 18.9 4s * 1293 380 32 891.0000000 885.55799 0.61% 18.7 4s 1608 395 889.00494 16 86 891.00000 886.06563 0.55% 18.6 5s 5089 989 cutoff 26 891.00000 887.81415 0.36% 16.9 10s * 8482 1 29 890.0000000 890.00000 0.0% 16.0 14s Cutting planes: Gomory: 10 MIR: 2 Zero half: 13 Explored 8483 nodes (136620 simplex iterations) in 14.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.900000000000e+02, best bound 8.900000000000e+02, gap 0.0% adding cut for [(3, 75), (8, 36), (15, 36), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (32, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (9, 20), (14, 55), (14, 58), (48, 49), (20, 55), (21, 71), (21, 38), (70, 72), (61, 71), (61, 72), (30, 46)] Optimize a model with 294 rows, 2850 columns and 54033 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 293 rows, 2850 columns, 53967 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 272 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 94 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 896.0000000 881.58532 1.61% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 100 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 94 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 101 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 104 895.00000 882.97383 1.34% - 0s 0 0 882.97604 0 107 895.00000 882.97604 1.34% - 0s 0 0 883.01985 0 104 895.00000 883.01985 1.34% - 0s 0 0 883.11857 0 105 895.00000 883.11857 1.33% - 0s 0 0 883.18280 0 107 895.00000 883.18280 1.32% - 0s 0 0 883.19991 0 106 895.00000 883.19991 1.32% - 0s 0 0 883.20481 0 107 895.00000 883.20481 1.32% - 0s 0 0 883.22211 0 110 895.00000 883.22211 1.32% - 0s 0 0 883.23258 0 111 895.00000 883.23258 1.31% - 0s 0 0 883.23413 0 114 895.00000 883.23413 1.31% - 0s 0 0 883.23413 0 114 895.00000 883.23413 1.31% - 0s 0 2 883.23613 0 114 895.00000 883.23613 1.31% - 1s * 580 391 30 894.0000000 884.98195 1.01% 16.9 1s H 673 318 892.0000000 885.08941 0.77% 17.3 2s 1870 618 887.43831 24 80 892.00000 886.26702 0.64% 17.8 5s * 3505 1099 37 891.0000000 887.21248 0.43% 16.8 7s 5688 1334 889.63793 22 78 891.00000 887.84787 0.35% 16.3 10s 9687 944 889.26984 21 70 891.00000 888.75080 0.25% 15.6 15s Cutting planes: Gomory: 6 MIR: 2 Zero half: 5 Explored 11494 nodes (171824 simplex iterations) in 16.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 59), (14, 28), (14, 55), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (32, 56), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (55, 58), (59, 73), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 54), (12, 67), (12, 60), (15, 20), (15, 60), (20, 36)] Optimize a model with 296 rows, 2850 columns and 54781 nonzeros Presolve time: 0.04s Presolved: 296 rows, 2850 columns, 54781 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 238 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 93 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 917.0000000 881.58532 3.86% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 94 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 101 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 104 895.00000 882.97383 1.34% - 0s 0 0 882.97604 0 107 895.00000 882.97604 1.34% - 0s 0 0 883.01985 0 104 895.00000 883.01985 1.34% - 0s 0 0 883.11857 0 105 895.00000 883.11857 1.33% - 0s 0 0 883.19141 0 105 895.00000 883.19141 1.32% - 0s 0 0 883.20242 0 105 895.00000 883.20242 1.32% - 0s 0 0 883.20851 0 108 895.00000 883.20851 1.32% - 0s 0 0 883.21058 0 107 895.00000 883.21058 1.32% - 0s 0 0 883.21600 0 110 895.00000 883.21600 1.32% - 0s 0 0 883.22306 0 107 895.00000 883.22306 1.32% - 0s 0 0 883.22579 0 107 895.00000 883.22579 1.32% - 0s 0 0 883.23727 0 112 895.00000 883.23727 1.31% - 0s 0 0 883.24031 0 115 895.00000 883.24031 1.31% - 1s 0 0 883.28953 0 106 895.00000 883.28953 1.31% - 1s 0 0 883.29007 0 108 895.00000 883.29007 1.31% - 1s 0 0 883.30354 0 107 895.00000 883.30354 1.31% - 1s 0 0 883.32858 0 111 895.00000 883.32858 1.30% - 1s 0 0 883.34630 0 117 895.00000 883.34630 1.30% - 1s 0 0 883.35013 0 113 895.00000 883.35013 1.30% - 1s 0 0 883.35296 0 117 895.00000 883.35296 1.30% - 1s 0 0 883.36189 0 116 895.00000 883.36189 1.30% - 1s 0 0 883.36605 0 115 895.00000 883.36605 1.30% - 1s 0 0 883.36776 0 115 895.00000 883.36776 1.30% - 1s 0 0 883.36776 0 115 895.00000 883.36776 1.30% - 1s 0 2 883.36834 0 115 895.00000 883.36834 1.30% - 1s * 541 372 35 894.0000000 885.20062 0.98% 17.9 2s * 762 486 38 893.0000000 885.38396 0.85% 17.9 4s * 836 470 37 891.0000000 885.38396 0.63% 17.9 4s 1001 504 885.79697 23 99 891.00000 885.66419 0.60% 18.5 5s 4283 653 889.08044 35 82 891.00000 888.06452 0.33% 16.2 10s Cutting planes: Gomory: 9 MIR: 2 Zero half: 7 Explored 6978 nodes (105133 simplex iterations) in 12.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (11, 66), (11, 73), (14, 53), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (32, 56), (32, 73), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 297 rows, 2850 columns and 55561 nonzeros Presolve time: 0.04s Presolved: 297 rows, 2850 columns, 55561 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 93 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 894.0000000 881.58532 1.39% - 0s 0 0 882.85316 0 99 894.00000 882.85316 1.25% - 0s 0 0 882.85316 0 94 894.00000 882.85316 1.25% - 0s 0 0 882.85316 0 100 894.00000 882.85316 1.25% - 0s 0 0 882.97383 0 105 894.00000 882.97383 1.23% - 0s 0 0 883.03081 0 104 894.00000 883.03081 1.23% - 0s 0 0 883.14227 0 106 894.00000 883.14227 1.21% - 0s 0 0 883.22206 0 105 894.00000 883.22206 1.21% - 0s 0 0 883.24198 0 107 894.00000 883.24198 1.20% - 0s 0 0 883.28665 0 106 894.00000 883.28665 1.20% - 0s 0 0 883.32148 0 108 894.00000 883.32148 1.19% - 0s 0 0 883.34340 0 108 894.00000 883.34340 1.19% - 0s 0 0 883.35703 0 111 894.00000 883.35703 1.19% - 0s 0 0 883.39850 0 109 894.00000 883.39850 1.19% - 0s 0 0 883.40738 0 109 894.00000 883.40738 1.18% - 0s 0 0 883.40782 0 111 894.00000 883.40782 1.18% - 0s 0 0 883.41160 0 110 894.00000 883.41160 1.18% - 0s 0 0 883.41387 0 110 894.00000 883.41387 1.18% - 0s 0 0 883.41387 0 110 894.00000 883.41387 1.18% - 0s 0 2 883.43129 0 110 894.00000 883.43129 1.18% - 1s 1517 742 889.31596 29 82 894.00000 885.89269 0.91% 18.6 5s * 1576 568 29 892.0000000 885.90171 0.68% 18.6 5s * 2534 738 21 891.0000000 886.66667 0.49% 18.0 6s 4380 755 cutoff 33 891.00000 887.18182 0.43% 18.0 10s Cutting planes: Gomory: 5 MIR: 1 Zero half: 10 Explored 8211 nodes (136318 simplex iterations) in 14.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (14, 53), (14, 55), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (32, 56), (32, 66), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(33, 45), (4, 45), (40, 73), (10, 33), (10, 40), (11, 39), (11, 73), (12, 39), (12, 59)] Optimize a model with 299 rows, 2850 columns and 56347 nonzeros Presolve time: 0.04s Presolved: 299 rows, 2850 columns, 56347 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 282 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 93 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 901.0000000 881.58532 2.15% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 93 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 101 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 104 895.00000 882.97383 1.34% - 0s 0 0 882.97604 0 107 895.00000 882.97604 1.34% - 0s 0 0 883.01985 0 104 895.00000 883.01985 1.34% - 0s 0 0 883.11857 0 105 895.00000 883.11857 1.33% - 0s 0 0 883.19141 0 105 895.00000 883.19141 1.32% - 0s 0 0 883.20242 0 105 895.00000 883.20242 1.32% - 0s 0 0 883.20851 0 108 895.00000 883.20851 1.32% - 0s 0 0 883.21058 0 107 895.00000 883.21058 1.32% - 0s 0 0 883.21600 0 110 895.00000 883.21600 1.32% - 0s 0 0 883.22306 0 107 895.00000 883.22306 1.32% - 0s 0 0 883.23153 0 112 895.00000 883.23153 1.31% - 0s 0 0 883.23694 0 112 895.00000 883.23694 1.31% - 0s 0 0 883.24001 0 112 895.00000 883.24001 1.31% - 0s 0 0 883.24001 0 112 895.00000 883.24001 1.31% - 1s 0 2 883.24031 0 112 895.00000 883.24031 1.31% - 1s H 993 570 893.0000000 884.76092 0.92% 17.6 4s * 1074 516 31 892.0000000 884.86000 0.80% 17.6 4s 1209 555 886.95315 28 110 892.00000 885.13223 0.77% 17.6 5s H 2825 824 891.0000000 886.07348 0.55% 17.0 7s 4612 1377 888.36264 35 85 891.00000 886.86763 0.46% 16.0 10s 8595 1847 cutoff 41 891.00000 887.91481 0.35% 15.1 15s 13412 454 889.64171 44 92 891.00000 889.29120 0.19% 14.2 20s Cutting planes: Gomory: 8 MIR: 2 Zero half: 3 Explored 13946 nodes (194879 simplex iterations) in 20.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (37, 48), (37, 70)] adding cut for [(32, 66), (32, 56), (33, 45), (4, 45), (19, 51), (19, 25), (39, 66), (40, 73), (10, 33), (10, 40), (11, 39), (11, 73), (25, 50), (26, 51), (26, 56)] adding cut for [(34, 74), (43, 65), (43, 44), (2, 74), (2, 44), (17, 64), (24, 64), (24, 57), (42, 65), (42, 57)] adding cut for [(3, 63), (22, 75), (22, 62), (23, 29), (23, 63), (31, 75), (29, 62)] adding cut for [(8, 54), (12, 67), (12, 59), (15, 54), (15, 60), (60, 67)] Optimize a model with 304 rows, 2850 columns and 56724 nonzeros Presolve time: 0.04s Presolved: 304 rows, 2850 columns, 56724 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.815853e+02, 255 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.58532 0 95 2906.00000 881.58532 69.7% - 0s Another try with MIP start H 0 0 897.0000000 881.58532 1.72% - 0s H 0 0 895.0000000 881.58532 1.50% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 93 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 99 895.00000 882.85316 1.36% - 0s 0 0 882.85316 0 101 895.00000 882.85316 1.36% - 0s 0 0 882.97383 0 104 895.00000 882.97383 1.34% - 0s 0 0 882.97604 0 106 895.00000 882.97604 1.34% - 0s 0 0 883.01985 0 104 895.00000 883.01985 1.34% - 0s 0 0 883.11857 0 105 895.00000 883.11857 1.33% - 0s 0 0 883.16721 0 106 895.00000 883.16721 1.32% - 0s 0 0 883.18004 0 106 895.00000 883.18004 1.32% - 0s 0 0 883.18969 0 107 895.00000 883.18969 1.32% - 0s 0 0 883.21869 0 108 895.00000 883.21869 1.32% - 0s 0 0 883.27294 0 105 895.00000 883.27294 1.31% - 0s 0 0 883.28874 0 106 895.00000 883.28874 1.31% - 1s 0 0 883.29910 0 111 895.00000 883.29910 1.31% - 1s 0 0 883.30983 0 112 895.00000 883.30983 1.31% - 1s 0 0 883.31238 0 113 895.00000 883.31238 1.31% - 1s 0 0 883.31493 0 111 895.00000 883.31493 1.31% - 1s 0 0 883.31493 0 111 895.00000 883.31493 1.31% - 1s 0 2 883.36255 0 111 895.00000 883.36255 1.30% - 1s * 363 275 42 894.0000000 884.49483 1.06% 18.5 1s * 365 245 43 893.0000000 884.49483 0.95% 18.5 1s 1382 641 891.71362 26 80 893.00000 885.83907 0.80% 19.3 5s H 1524 594 892.0000000 886.07820 0.66% 19.0 5s * 3243 1073 26 891.0000000 887.06542 0.44% 17.6 7s 4955 1341 888.59456 27 83 891.00000 887.76213 0.36% 16.8 10s 8808 1136 889.94334 22 82 891.00000 888.69231 0.26% 15.8 15s Cutting planes: Gomory: 6 MIR: 1 Zero half: 9 Explored 11091 nodes (165009 simplex iterations) in 17.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 30), (6, 38), (8, 15), (11, 39), (11, 59), (12, 39), (12, 54), (14, 55), (14, 58), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (23, 29), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (32, 66), (36, 54), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 305 rows, 2850 columns and 57585 nonzeros Presolve time: 0.04s Presolved: 305 rows, 2850 columns, 57585 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817511e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.75112 0 93 2906.00000 881.75112 69.7% - 0s Another try with MIP start H 0 0 902.0000000 881.75112 2.24% - 0s H 0 0 895.0000000 881.75112 1.48% - 0s 0 0 882.85322 0 100 895.00000 882.85322 1.36% - 0s 0 0 882.85322 0 93 895.00000 882.85322 1.36% - 0s 0 0 882.85322 0 100 895.00000 882.85322 1.36% - 0s 0 0 882.87342 0 101 895.00000 882.87342 1.35% - 0s 0 0 882.98342 0 103 895.00000 882.98342 1.34% - 0s 0 0 883.03366 0 106 895.00000 883.03366 1.34% - 0s 0 0 883.05162 0 105 895.00000 883.05162 1.34% - 0s 0 0 883.05633 0 104 895.00000 883.05633 1.33% - 0s 0 0 883.07524 0 105 895.00000 883.07524 1.33% - 0s 0 0 883.13019 0 108 895.00000 883.13019 1.33% - 0s 0 0 883.15748 0 105 895.00000 883.15748 1.32% - 0s 0 0 883.16170 0 107 895.00000 883.16170 1.32% - 0s 0 0 883.24467 0 106 895.00000 883.24467 1.31% - 0s 0 0 883.27131 0 103 895.00000 883.27131 1.31% - 0s 0 0 883.27673 0 108 895.00000 883.27673 1.31% - 0s 0 0 883.30721 0 103 895.00000 883.30721 1.31% - 1s 0 0 883.30782 0 106 895.00000 883.30782 1.31% - 1s 0 0 883.33043 0 110 895.00000 883.33043 1.30% - 1s 0 0 883.34110 0 109 895.00000 883.34110 1.30% - 1s 0 0 883.35271 0 111 895.00000 883.35271 1.30% - 1s 0 0 883.35289 0 112 895.00000 883.35289 1.30% - 1s 0 2 883.35563 0 112 895.00000 883.35563 1.30% - 1s H 342 262 894.0000000 883.85087 1.14% 16.4 2s * 531 340 24 893.0000000 884.44559 0.96% 16.9 2s 1361 667 886.10382 15 95 893.00000 885.85169 0.80% 19.0 5s * 4354 1145 26 891.0000000 887.46498 0.40% 17.4 9s 4893 1197 cutoff 22 891.00000 887.66279 0.37% 17.2 10s 8488 994 889.92722 21 69 891.00000 888.69987 0.26% 16.4 15s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Explored 10400 nodes (162105 simplex iterations) in 17.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (11, 39), (11, 73), (12, 59), (12, 67), (14, 28), (14, 55), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (37, 70), (37, 72), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(48, 49), (22, 48), (22, 29), (29, 75), (30, 49), (31, 75)] Optimize a model with 307 rows, 2850 columns and 58309 nonzeros Presolve time: 0.04s Presolved: 307 rows, 2850 columns, 58309 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817511e+02, 253 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.75112 0 93 2906.00000 881.75112 69.7% - 0s Another try with MIP start H 0 0 897.0000000 881.75112 1.70% - 0s H 0 0 895.0000000 881.75112 1.48% - 0s 0 0 882.85322 0 100 895.00000 882.85322 1.36% - 0s 0 0 882.85322 0 93 895.00000 882.85322 1.36% - 0s 0 0 882.85322 0 100 895.00000 882.85322 1.36% - 0s 0 0 882.87342 0 101 895.00000 882.87342 1.35% - 0s 0 0 882.98342 0 103 895.00000 882.98342 1.34% - 0s 0 0 883.03366 0 106 895.00000 883.03366 1.34% - 0s 0 0 883.05162 0 105 895.00000 883.05162 1.34% - 0s 0 0 883.05633 0 104 895.00000 883.05633 1.33% - 0s 0 0 883.07524 0 105 895.00000 883.07524 1.33% - 0s 0 0 883.13019 0 108 895.00000 883.13019 1.33% - 0s 0 0 883.15748 0 105 895.00000 883.15748 1.32% - 0s 0 0 883.16170 0 107 895.00000 883.16170 1.32% - 0s 0 0 883.24467 0 106 895.00000 883.24467 1.31% - 0s 0 0 883.27056 0 103 895.00000 883.27056 1.31% - 0s 0 0 883.27603 0 108 895.00000 883.27603 1.31% - 0s 0 0 883.29619 0 106 895.00000 883.29619 1.31% - 0s 0 0 883.30833 0 106 895.00000 883.30833 1.31% - 0s 0 0 883.31160 0 107 895.00000 883.31160 1.31% - 0s 0 0 883.34197 0 107 895.00000 883.34197 1.30% - 0s 0 0 883.34543 0 112 895.00000 883.34543 1.30% - 0s 0 0 883.35616 0 111 895.00000 883.35616 1.30% - 1s 0 0 883.38326 0 108 895.00000 883.38326 1.30% - 1s 0 0 883.39662 0 112 895.00000 883.39662 1.30% - 1s 0 0 883.41219 0 111 895.00000 883.41219 1.29% - 1s 0 0 883.41592 0 114 895.00000 883.41592 1.29% - 1s 0 0 883.41669 0 115 895.00000 883.41669 1.29% - 1s 0 2 883.42440 0 115 895.00000 883.42440 1.29% - 1s * 885 499 35 893.0000000 884.72045 0.93% 20.3 4s 1179 573 888.66667 23 76 893.00000 885.23394 0.87% 20.1 5s * 2818 761 23 891.0000000 886.94241 0.46% 18.3 7s 3862 863 887.58741 35 92 891.00000 886.98765 0.45% 18.5 10s 7519 569 889.12417 37 85 891.00000 888.45623 0.29% 17.0 15s Cutting planes: Gomory: 10 MIR: 1 Zero half: 6 Explored 9192 nodes (150147 simplex iterations) in 17.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(4, 25), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (17, 50), (17, 64), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (29, 62), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (33, 51), (33, 45), (39, 66), (8, 54), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (40, 73), (19, 51), (19, 56), (26, 56)] Optimize a model with 309 rows, 2850 columns and 58851 nonzeros Presolve time: 0.04s Presolved: 309 rows, 2850 columns, 58851 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817734e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.77337 0 93 2906.00000 881.77337 69.7% - 0s Another try with MIP start H 0 0 896.0000000 881.77337 1.59% - 0s H 0 0 895.0000000 881.77337 1.48% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 94 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 883.14329 0 101 895.00000 883.14329 1.32% - 0s 0 0 883.21278 0 103 895.00000 883.21278 1.32% - 0s 0 0 883.23379 0 108 895.00000 883.23379 1.31% - 0s 0 0 883.24308 0 107 895.00000 883.24308 1.31% - 0s 0 0 883.27115 0 107 895.00000 883.27115 1.31% - 0s 0 0 883.30258 0 106 895.00000 883.30258 1.31% - 0s 0 0 883.32080 0 106 895.00000 883.32080 1.30% - 0s 0 0 883.33748 0 106 895.00000 883.33748 1.30% - 0s 0 0 883.33982 0 109 895.00000 883.33982 1.30% - 0s 0 0 883.34235 0 110 895.00000 883.34235 1.30% - 0s 0 0 883.34235 0 110 895.00000 883.34235 1.30% - 0s 0 2 883.34270 0 110 895.00000 883.34270 1.30% - 1s * 665 442 36 891.0000000 884.99813 0.67% 19.4 3s 1004 545 888.73604 28 79 891.00000 884.99813 0.67% 21.4 5s 4541 406 889.87013 31 79 891.00000 888.45477 0.29% 17.7 10s Cutting planes: Gomory: 7 MIR: 1 Zero half: 7 Explored 5548 nodes (94064 simplex iterations) in 11.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (4, 45), (10, 33), (10, 40), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (32, 73), (33, 45), (37, 48), (37, 70), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(39, 66), (9, 20), (12, 66), (12, 67), (15, 20), (15, 60), (60, 67)] Optimize a model with 311 rows, 2850 columns and 59620 nonzeros Presolve time: 0.04s Presolved: 311 rows, 2850 columns, 59620 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817734e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.77337 0 93 2906.00000 881.77337 69.7% - 0s Another try with MIP start H 0 0 897.0000000 881.77337 1.70% - 0s H 0 0 895.0000000 881.77337 1.48% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 95 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 100 895.00000 882.95612 1.35% - 0s 0 0 883.15134 0 101 895.00000 883.15134 1.32% - 0s 0 0 883.20345 0 104 895.00000 883.20345 1.32% - 0s 0 0 883.24050 0 105 895.00000 883.24050 1.31% - 0s 0 0 883.25225 0 105 895.00000 883.25225 1.31% - 0s 0 0 883.28865 0 107 895.00000 883.28865 1.31% - 0s 0 0 883.32337 0 104 895.00000 883.32337 1.30% - 0s 0 0 883.33768 0 105 895.00000 883.33768 1.30% - 0s 0 0 883.34615 0 107 895.00000 883.34615 1.30% - 0s 0 0 883.34685 0 107 895.00000 883.34685 1.30% - 1s 0 0 883.34685 0 107 895.00000 883.34685 1.30% - 1s 0 2 883.36011 0 107 895.00000 883.36011 1.30% - 1s * 260 206 21 894.0000000 884.35917 1.08% 20.6 1s 1441 630 889.64770 30 77 894.00000 885.93371 0.90% 19.9 5s * 1796 647 42 893.0000000 886.43750 0.73% 19.3 5s H 2058 645 892.0000000 886.79983 0.58% 19.1 5s * 3594 835 28 891.0000000 887.61321 0.38% 18.3 8s 3911 848 887.87701 20 110 891.00000 887.80552 0.36% 18.1 10s 7024 398 888.94604 36 84 891.00000 888.54438 0.28% 17.5 15s Cutting planes: Gomory: 7 MIR: 1 Zero half: 8 Explored 7958 nodes (135062 simplex iterations) in 16.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 59), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 70), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (30, 58), (31, 49), (31, 75), (32, 56), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 65)] adding cut for [(66, 67), (36, 54), (39, 66), (28, 53), (12, 67), (12, 60), (14, 28), (14, 55), (15, 36), (15, 60), (20, 54), (20, 55)] Optimize a model with 313 rows, 2850 columns and 60293 nonzeros Presolve time: 0.04s Presolved: 313 rows, 2850 columns, 60293 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817734e+02, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.77337 0 93 2906.00000 881.77337 69.7% - 0s Another try with MIP start H 0 0 902.0000000 881.77337 2.24% - 0s H 0 0 895.0000000 881.77337 1.48% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 94 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 883.14329 0 101 895.00000 883.14329 1.32% - 0s 0 0 883.21278 0 103 895.00000 883.21278 1.32% - 0s 0 0 883.23379 0 108 895.00000 883.23379 1.31% - 0s 0 0 883.24308 0 107 895.00000 883.24308 1.31% - 0s 0 0 883.27115 0 107 895.00000 883.27115 1.31% - 0s 0 0 883.30258 0 106 895.00000 883.30258 1.31% - 0s 0 0 883.32080 0 106 895.00000 883.32080 1.30% - 0s 0 0 883.33748 0 106 895.00000 883.33748 1.30% - 0s 0 0 883.33982 0 109 895.00000 883.33982 1.30% - 0s 0 0 883.34235 0 110 895.00000 883.34235 1.30% - 0s 0 0 883.34235 0 110 895.00000 883.34235 1.30% - 1s 0 2 883.34270 0 110 895.00000 883.34270 1.30% - 1s * 1226 653 50 894.0000000 885.25726 0.98% 18.5 4s 1280 675 892.78049 33 66 894.00000 885.36463 0.97% 18.5 5s * 2316 861 45 892.0000000 886.29758 0.64% 17.7 6s * 2658 924 53 891.0000000 886.35163 0.52% 18.3 8s 3492 988 888.47873 37 88 891.00000 886.38976 0.52% 18.1 10s 7014 932 889.83908 39 80 891.00000 888.00000 0.34% 17.0 15s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Explored 10578 nodes (169374 simplex iterations) in 19.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(3, 75), (8, 36), (11, 32), (11, 39), (15, 36), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (60, 67), (66, 67)] adding cut for [(16, 58), (16, 38), (59, 73), (6, 49), (6, 30), (70, 72), (12, 59), (12, 54), (14, 55), (14, 58), (48, 49), (20, 54), (20, 55), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 315 rows, 2850 columns and 60889 nonzeros Presolve time: 0.04s Presolved: 315 rows, 2850 columns, 60889 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.817734e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 881.77337 0 93 2906.00000 881.77337 69.7% - 0s Another try with MIP start H 0 0 895.0000000 881.77337 1.48% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 93 895.00000 882.95612 1.35% - 0s 0 0 882.95612 0 99 895.00000 882.95612 1.35% - 0s 0 0 883.16028 0 103 895.00000 883.16028 1.32% - 0s 0 0 883.19360 0 102 895.00000 883.19360 1.32% - 0s 0 0 883.19360 0 104 895.00000 883.19360 1.32% - 0s 0 0 883.25697 0 105 895.00000 883.25697 1.31% - 0s 0 0 883.28593 0 108 895.00000 883.28593 1.31% - 0s 0 0 883.30234 0 111 895.00000 883.30234 1.31% - 0s 0 0 883.34421 0 109 895.00000 883.34421 1.30% - 0s 0 0 883.37408 0 108 895.00000 883.37408 1.30% - 0s 0 0 883.38040 0 114 895.00000 883.38040 1.30% - 1s 0 0 883.39178 0 109 895.00000 883.39178 1.30% - 1s 0 0 883.39461 0 110 895.00000 883.39461 1.30% - 1s 0 0 883.39933 0 107 895.00000 883.39933 1.30% - 1s 0 0 883.40062 0 109 895.00000 883.40062 1.30% - 1s 0 0 883.40062 0 109 895.00000 883.40062 1.30% - 1s 0 2 883.40091 0 109 895.00000 883.40091 1.30% - 1s * 562 383 28 894.0000000 885.07498 1.00% 16.4 2s 1034 623 890.33462 30 60 894.00000 885.41955 0.96% 18.5 5s H 2086 802 893.0000000 886.44545 0.73% 17.5 6s * 3414 1190 26 892.0000000 887.29897 0.53% 17.1 8s 4341 1408 890.34375 28 73 892.00000 887.75152 0.48% 16.9 10s * 7238 1259 28 891.0000000 888.55864 0.27% 16.4 14s 7909 1102 889.94617 19 85 891.00000 888.86967 0.24% 16.2 15s Cutting planes: Gomory: 7 MIR: 1 Zero half: 6 Explored 9741 nodes (147940 simplex iterations) in 16.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 25), (9, 36), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (24, 50), (24, 57), (25, 50), (29, 62), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (12, 67), (12, 54), (59, 73)] adding cut for [(33, 51), (33, 45), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] Optimize a model with 318 rows, 2850 columns and 61418 nonzeros Presolve time: 0.04s Presolved: 318 rows, 2850 columns, 61418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 257 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 894.0000000 882.14298 1.33% - 0s 0 0 883.14554 0 95 894.00000 883.14554 1.21% - 0s 0 0 883.14554 0 94 894.00000 883.14554 1.21% - 0s 0 0 883.14554 0 95 894.00000 883.14554 1.21% - 0s 0 0 883.21370 0 98 894.00000 883.21370 1.21% - 0s 0 0 883.24112 0 100 894.00000 883.24112 1.20% - 0s 0 0 883.31502 0 104 894.00000 883.31502 1.20% - 0s 0 0 883.31623 0 103 894.00000 883.31623 1.20% - 0s 0 0 883.39338 0 101 894.00000 883.39338 1.19% - 0s 0 0 883.41034 0 104 894.00000 883.41034 1.18% - 0s 0 0 883.42808 0 107 894.00000 883.42808 1.18% - 0s 0 0 883.43909 0 107 894.00000 883.43909 1.18% - 0s 0 0 883.47064 0 107 894.00000 883.47064 1.18% - 0s 0 0 883.48068 0 107 894.00000 883.48068 1.18% - 0s 0 0 883.49565 0 111 894.00000 883.49565 1.17% - 0s 0 0 883.49942 0 110 894.00000 883.49942 1.17% - 0s 0 0 883.51351 0 112 894.00000 883.51351 1.17% - 0s 0 0 883.51857 0 112 894.00000 883.51857 1.17% - 1s 0 0 883.51985 0 116 894.00000 883.51985 1.17% - 1s 0 2 883.52730 0 116 894.00000 883.52730 1.17% - 1s * 260 158 29 892.0000000 884.33935 0.86% 17.2 1s 1395 542 887.90428 27 83 892.00000 886.54196 0.61% 17.6 5s 4892 1538 890.84211 26 76 892.00000 888.13803 0.43% 15.9 10s 8760 1916 890.74187 27 81 892.00000 888.87417 0.35% 15.6 15s *10600 1209 35 891.0000000 889.13889 0.21% 15.4 17s Cutting planes: Gomory: 6 MIR: 1 Zero half: 9 Explored 12167 nodes (177178 simplex iterations) in 18.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(32, 73), (32, 56), (42, 44), (42, 57), (43, 65), (43, 44), (19, 51), (19, 25), (22, 75), (22, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (23, 65), (23, 63)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (55, 58), (31, 49), (28, 53), (61, 71), (61, 72)] adding cut for [(39, 66), (11, 39), (11, 59), (12, 66), (12, 67), (15, 36), (15, 60), (60, 67)] Optimize a model with 321 rows, 2850 columns and 61780 nonzeros Presolve time: 0.04s Presolved: 321 rows, 2850 columns, 61780 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 257 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 895.0000000 882.14298 1.44% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 93 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.21370 0 98 895.00000 883.21370 1.32% - 0s 0 0 883.24112 0 100 895.00000 883.24112 1.31% - 0s 0 0 883.31502 0 105 895.00000 883.31502 1.31% - 0s 0 0 883.35108 0 103 895.00000 883.35108 1.30% - 0s 0 0 883.42526 0 104 895.00000 883.42526 1.29% - 0s 0 0 883.44403 0 108 895.00000 883.44403 1.29% - 0s 0 0 883.46579 0 108 895.00000 883.46579 1.29% - 0s 0 0 883.46900 0 109 895.00000 883.46900 1.29% - 0s 0 0 883.48663 0 107 895.00000 883.48663 1.29% - 0s 0 0 883.48869 0 110 895.00000 883.48869 1.29% - 0s 0 0 883.50744 0 109 895.00000 883.50744 1.28% - 0s 0 0 883.54860 0 108 895.00000 883.54860 1.28% - 0s 0 0 883.56418 0 109 895.00000 883.56418 1.28% - 0s 0 2 883.61098 0 109 895.00000 883.61098 1.27% - 1s * 671 439 44 894.0000000 885.36578 0.97% 20.4 3s * 886 494 39 893.0000000 885.36578 0.85% 21.4 4s 1343 589 889.78750 23 86 893.00000 886.18913 0.76% 21.2 5s * 3618 1161 35 892.0000000 887.64654 0.49% 19.3 8s 3712 1188 889.00000 27 103 892.00000 887.70548 0.48% 19.2 10s 6641 1233 cutoff 46 892.00000 887.80015 0.47% 18.6 15s H 9312 972 891.0000000 888.54940 0.28% 18.0 18s 10448 590 889.53333 39 80 891.00000 889.15789 0.21% 17.6 20s Cutting planes: Gomory: 6 Zero half: 7 Explored 11205 nodes (191575 simplex iterations) in 20.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.910000000000e+02, best bound 8.910000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (6, 38), (6, 49), (17, 50), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (31, 49), (34, 64), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (33, 51), (33, 45), (4, 45), (40, 73), (10, 40), (10, 41), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(66, 67), (39, 66), (9, 36), (11, 39), (11, 59), (12, 67), (12, 60), (15, 20), (15, 60), (20, 36)] Optimize a model with 324 rows, 2850 columns and 62226 nonzeros Presolve time: 0.04s Presolved: 324 rows, 2850 columns, 62226 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 257 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 895.0000000 882.14298 1.44% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 94 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.21370 0 98 895.00000 883.21370 1.32% - 0s 0 0 883.24112 0 100 895.00000 883.24112 1.31% - 0s 0 0 883.31502 0 105 895.00000 883.31502 1.31% - 0s 0 0 883.35108 0 103 895.00000 883.35108 1.30% - 0s 0 0 883.42526 0 104 895.00000 883.42526 1.29% - 0s 0 0 883.44403 0 108 895.00000 883.44403 1.29% - 0s 0 0 883.46579 0 108 895.00000 883.46579 1.29% - 0s 0 0 883.46900 0 109 895.00000 883.46900 1.29% - 0s 0 0 883.48663 0 107 895.00000 883.48663 1.29% - 0s 0 0 883.49491 0 109 895.00000 883.49491 1.29% - 0s 0 0 883.50318 0 111 895.00000 883.50318 1.28% - 0s 0 0 883.51080 0 111 895.00000 883.51080 1.28% - 0s 0 0 883.52067 0 114 895.00000 883.52067 1.28% - 0s 0 0 883.52571 0 114 895.00000 883.52571 1.28% - 0s 0 2 883.52939 0 114 895.00000 883.52939 1.28% - 1s * 188 142 37 894.0000000 885.01759 1.00% 18.9 1s 1485 675 891.04348 33 61 894.00000 886.12398 0.88% 18.3 5s * 2358 983 39 893.0000000 886.72414 0.70% 17.6 6s H 2670 908 892.0000000 886.88358 0.57% 17.6 7s 4522 1374 890.01105 25 75 892.00000 887.86390 0.46% 17.2 10s 8052 1772 889.77451 33 78 892.00000 888.65942 0.37% 16.5 15s 12068 1591 cutoff 25 892.00000 889.36644 0.30% 16.0 20s Cutting planes: Gomory: 6 MIR: 1 Zero half: 6 Explored 16155 nodes (243594 simplex iterations) in 24.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(3, 75), (8, 54), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (32, 66), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (31, 49), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 326 rows, 2850 columns and 62757 nonzeros Presolve time: 0.04s Presolved: 326 rows, 2850 columns, 62757 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 274 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 93 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 903.0000000 882.14298 2.31% - 0s H 0 0 898.0000000 882.14298 1.77% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 92 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.22113 0 99 898.00000 883.22113 1.65% - 0s 0 0 883.24935 0 101 898.00000 883.24935 1.64% - 0s 0 0 883.32875 0 104 898.00000 883.32875 1.63% - 1s 0 0 883.39840 0 102 898.00000 883.39840 1.63% - 1s 0 0 883.41270 0 106 898.00000 883.41270 1.62% - 1s 0 0 883.44518 0 106 898.00000 883.44518 1.62% - 1s 0 0 883.44949 0 107 898.00000 883.44949 1.62% - 1s 0 0 883.46007 0 109 898.00000 883.46007 1.62% - 1s 0 0 883.46072 0 110 898.00000 883.46072 1.62% - 1s 0 0 883.46072 0 110 898.00000 883.46072 1.62% - 1s 0 2 883.46107 0 110 898.00000 883.46107 1.62% - 1s * 893 578 49 896.0000000 884.68660 1.26% 19.1 4s H 993 534 894.0000000 885.10097 1.00% 19.5 4s 1101 584 892.30253 38 95 894.00000 885.13354 0.99% 19.7 5s 2996 1091 888.10192 35 85 894.00000 886.83326 0.80% 19.9 10s * 3381 1155 48 893.0000000 887.06038 0.67% 19.7 10s * 3800 1053 39 892.0000000 887.22869 0.53% 19.5 11s 6176 1569 889.79916 42 82 892.00000 888.06435 0.44% 18.6 15s 9843 1760 890.20796 33 83 892.00000 888.92360 0.34% 17.6 20s 14280 947 890.60000 38 85 892.00000 889.92500 0.23% 16.7 25s Cutting planes: Gomory: 5 MIR: 1 Zero half: 8 Explored 15860 nodes (255364 simplex iterations) in 26.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(48, 49), (6, 58), (6, 30), (62, 70), (29, 75), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (31, 49), (61, 71), (61, 72), (30, 46), (37, 72), (37, 70)] adding cut for [(2, 74), (2, 23), (3, 63), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (42, 44), (42, 57), (63, 74)] adding cut for [(32, 56), (40, 41), (10, 40), (10, 26), (11, 32), (11, 73), (26, 56)] adding cut for [(66, 67), (36, 54), (39, 66), (39, 59), (12, 67), (12, 54)] Optimize a model with 330 rows, 2850 columns and 63130 nonzeros Presolve time: 0.04s Presolved: 330 rows, 2850 columns, 63130 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 274 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 93 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 897.0000000 882.14298 1.66% - 0s 0 0 883.14554 0 95 897.00000 883.14554 1.54% - 0s 0 0 883.14554 0 92 897.00000 883.14554 1.54% - 0s 0 0 883.14554 0 95 897.00000 883.14554 1.54% - 0s 0 0 883.22113 0 99 897.00000 883.22113 1.54% - 0s 0 0 883.24935 0 101 897.00000 883.24935 1.53% - 0s 0 0 883.32807 0 105 897.00000 883.32807 1.52% - 0s 0 0 883.40749 0 103 897.00000 883.40749 1.52% - 0s 0 0 883.44351 0 108 897.00000 883.44351 1.51% - 0s 0 0 883.45500 0 111 897.00000 883.45500 1.51% - 0s 0 0 883.47913 0 107 897.00000 883.47913 1.51% - 0s 0 0 883.53201 0 109 897.00000 883.53201 1.50% - 0s 0 0 883.55513 0 111 897.00000 883.55513 1.50% - 0s 0 0 883.57141 0 110 897.00000 883.57141 1.50% - 0s 0 0 883.57501 0 112 897.00000 883.57501 1.50% - 0s 0 0 883.59486 0 109 897.00000 883.59486 1.49% - 0s 0 0 883.59487 0 110 897.00000 883.59487 1.49% - 1s 0 0 883.59727 0 109 897.00000 883.59727 1.49% - 1s 0 2 883.59856 0 109 897.00000 883.59856 1.49% - 1s * 964 597 50 896.0000000 885.04823 1.22% 20.3 4s * 971 546 55 895.0000000 885.04823 1.11% 20.2 4s 993 556 888.60718 26 73 895.00000 885.27749 1.09% 20.3 5s * 1136 567 37 894.0000000 885.55930 0.94% 20.3 5s 2807 1061 887.73659 35 83 894.00000 886.71166 0.82% 20.3 10s * 4140 1513 47 893.0000000 887.25664 0.64% 19.5 12s * 5055 1484 43 892.0000000 887.57863 0.50% 19.2 14s 5693 1601 890.60732 40 76 892.00000 887.79808 0.47% 19.0 15s 8833 1913 890.91667 39 67 892.00000 888.56254 0.39% 18.3 20s 12662 1773 890.95146 46 84 892.00000 889.25481 0.31% 17.6 25s 17446 77 cutoff 39 892.00000 890.89286 0.12% 16.5 30s Cutting planes: Gomory: 11 MIR: 1 Zero half: 7 Explored 17524 nodes (288237 simplex iterations) in 30.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(3, 63), (11, 32), (11, 66), (14, 28), (14, 55), (15, 20), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 55), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (30, 46), (32, 56), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (60, 67), (66, 67)] adding cut for [(6, 38), (6, 49), (37, 48), (37, 70), (21, 38), (21, 71), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (31, 49)] Optimize a model with 332 rows, 2850 columns and 63704 nonzeros Presolve time: 0.04s Presolved: 332 rows, 2850 columns, 63704 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 899.0000000 882.14298 1.88% - 0s H 0 0 898.0000000 882.14298 1.77% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 93 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.22113 0 98 898.00000 883.22113 1.65% - 0s 0 0 883.25510 0 100 898.00000 883.25510 1.64% - 0s 0 0 883.29698 0 105 898.00000 883.29698 1.64% - 0s 0 0 883.32920 0 102 898.00000 883.32920 1.63% - 0s 0 0 883.35821 0 103 898.00000 883.35821 1.63% - 0s 0 0 883.42091 0 105 898.00000 883.42091 1.62% - 0s 0 0 883.42532 0 103 898.00000 883.42532 1.62% - 0s 0 0 883.43890 0 109 898.00000 883.43890 1.62% - 1s 0 0 883.44090 0 110 898.00000 883.44090 1.62% - 1s 0 0 883.45164 0 109 898.00000 883.45164 1.62% - 1s 0 0 883.45554 0 109 898.00000 883.45554 1.62% - 1s 0 0 883.45580 0 109 898.00000 883.45580 1.62% - 1s 0 2 883.46059 0 109 898.00000 883.46059 1.62% - 1s * 67 67 40 897.0000000 884.77594 1.36% 24.3 1s H 589 387 896.0000000 885.29005 1.20% 17.4 2s * 645 277 20 893.0000000 885.35355 0.86% 17.6 2s 1158 461 886.95116 19 80 893.00000 885.95016 0.79% 19.3 5s 4262 1764 891.53571 28 76 893.00000 887.61986 0.60% 16.8 10s * 5397 1920 27 892.0000000 887.92308 0.46% 16.7 11s 7604 2238 890.99135 26 82 892.00000 888.47059 0.40% 16.4 15s 11444 2141 cutoff 24 892.00000 889.16364 0.32% 15.8 20s 16367 274 cutoff 34 892.00000 890.64103 0.15% 15.0 25s Cutting planes: Gomory: 9 Zero half: 5 Explored 16663 nodes (247040 simplex iterations) in 25.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(9, 15), (10, 33), (10, 40), (15, 60), (19, 25), (19, 56), (22, 62), (22, 75), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 66), (32, 73), (33, 51), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(6, 30), (6, 49), (11, 39), (11, 59), (12, 39), (12, 54), (14, 55), (14, 58), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (30, 46), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] Optimize a model with 334 rows, 2850 columns and 64286 nonzeros Presolve time: 0.04s Presolved: 334 rows, 2850 columns, 64286 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 274 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 895.0000000 882.14298 1.44% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 93 895.00000 883.14554 1.32% - 0s 0 0 883.14554 0 95 895.00000 883.14554 1.32% - 0s 0 0 883.22113 0 99 895.00000 883.22113 1.32% - 0s 0 0 883.24935 0 101 895.00000 883.24935 1.31% - 0s 0 0 883.32439 0 105 895.00000 883.32439 1.30% - 0s 0 0 883.39625 0 103 895.00000 883.39625 1.30% - 0s 0 0 883.40558 0 102 895.00000 883.40558 1.30% - 1s 0 0 883.41653 0 103 895.00000 883.41653 1.29% - 1s 0 0 883.42461 0 106 895.00000 883.42461 1.29% - 1s 0 0 883.42676 0 109 895.00000 883.42676 1.29% - 1s 0 0 883.43981 0 106 895.00000 883.43981 1.29% - 1s 0 0 883.44767 0 110 895.00000 883.44767 1.29% - 1s 0 0 883.45218 0 108 895.00000 883.45218 1.29% - 1s 0 0 883.45534 0 111 895.00000 883.45534 1.29% - 1s 0 0 883.46520 0 110 895.00000 883.46520 1.29% - 1s 0 0 883.47546 0 112 895.00000 883.47546 1.29% - 1s 0 0 883.49486 0 109 895.00000 883.49486 1.29% - 1s 0 0 883.52453 0 107 895.00000 883.52453 1.28% - 1s 0 0 883.53951 0 106 895.00000 883.53951 1.28% - 1s 0 0 883.54288 0 111 895.00000 883.54288 1.28% - 1s 0 0 883.57968 0 111 895.00000 883.57968 1.28% - 1s 0 0 883.58277 0 111 895.00000 883.58277 1.28% - 1s 0 0 883.59375 0 109 895.00000 883.59375 1.27% - 1s 0 0 883.59763 0 112 895.00000 883.59763 1.27% - 1s 0 0 883.60393 0 115 895.00000 883.60393 1.27% - 1s 0 2 883.62009 0 115 895.00000 883.62009 1.27% - 1s * 559 371 41 894.0000000 885.11535 0.99% 16.4 2s 1021 592 886.26604 17 84 894.00000 885.55153 0.95% 18.1 5s * 3903 1788 33 893.0000000 887.02374 0.67% 16.9 9s 4067 1841 890.75216 23 71 893.00000 887.07491 0.66% 16.8 10s 7087 3018 888.89882 23 85 893.00000 887.81007 0.58% 16.7 15s 10364 4062 891.70909 25 72 893.00000 888.28378 0.53% 16.5 20s *11115 3396 24 892.0000000 888.37380 0.41% 16.5 20s 14501 3501 890.06184 23 78 892.00000 888.89130 0.35% 16.2 25s 19219 3132 890.33404 21 75 892.00000 889.47427 0.28% 15.6 30s 24606 1627 890.83384 25 86 892.00000 890.19861 0.20% 14.8 35s Cutting planes: Gomory: 6 MIR: 1 Zero half: 7 Explored 26918 nodes (382767 simplex iterations) in 36.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (3, 63), (6, 16), (6, 38), (9, 20), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (29, 62), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (55, 60), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 51), (33, 45), (66, 67), (4, 45), (39, 66), (11, 32), (11, 39), (12, 67), (12, 54), (19, 51), (19, 56), (26, 32), (26, 56)] Optimize a model with 336 rows, 2850 columns and 64755 nonzeros Presolve time: 0.04s Presolved: 336 rows, 2850 columns, 64755 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 274 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 94 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 919.0000000 882.14298 4.01% - 0s H 0 0 898.0000000 882.14298 1.77% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 93 898.00000 883.14554 1.65% - 0s 0 0 883.14554 0 95 898.00000 883.14554 1.65% - 0s 0 0 883.22113 0 99 898.00000 883.22113 1.65% - 0s 0 0 883.25510 0 100 898.00000 883.25510 1.64% - 0s 0 0 883.29441 0 104 898.00000 883.29441 1.64% - 0s 0 0 883.31700 0 104 898.00000 883.31700 1.64% - 0s 0 0 883.33389 0 103 898.00000 883.33389 1.63% - 0s 0 0 883.35730 0 105 898.00000 883.35730 1.63% - 0s 0 0 883.44107 0 103 898.00000 883.44107 1.62% - 0s 0 0 883.45551 0 104 898.00000 883.45551 1.62% - 1s 0 0 883.46186 0 107 898.00000 883.46186 1.62% - 1s 0 0 883.50010 0 106 898.00000 883.50010 1.61% - 1s 0 0 883.51521 0 105 898.00000 883.51521 1.61% - 1s 0 0 883.56031 0 105 898.00000 883.56031 1.61% - 1s 0 0 883.56600 0 106 898.00000 883.56600 1.61% - 1s 0 0 883.57186 0 111 898.00000 883.57186 1.61% - 1s 0 0 883.60164 0 109 898.00000 883.60164 1.60% - 1s 0 0 883.61525 0 107 898.00000 883.61525 1.60% - 1s 0 0 883.61609 0 109 898.00000 883.61609 1.60% - 1s 0 0 883.61945 0 109 898.00000 883.61945 1.60% - 1s 0 2 883.62095 0 109 898.00000 883.62095 1.60% - 1s H 94 90 897.0000000 884.14297 1.43% 19.4 1s H 95 88 896.0000000 884.14297 1.32% 19.2 1s 947 639 892.45173 31 70 896.00000 885.51293 1.17% 20.1 5s * 1273 641 30 894.0000000 885.94276 0.90% 19.9 5s H 1485 614 893.0000000 886.27484 0.75% 19.4 5s 2951 895 891.79394 38 69 893.00000 887.31186 0.64% 18.9 10s 6327 1729 891.16346 35 82 893.00000 888.49877 0.50% 17.6 15s * 8470 1946 41 892.0000000 888.89234 0.35% 17.0 18s 9742 1932 cutoff 35 892.00000 889.12188 0.32% 16.8 20s 14003 1279 cutoff 37 892.00000 889.89151 0.24% 16.0 25s Cutting planes: Gomory: 9 MIR: 1 Zero half: 7 Explored 16262 nodes (248273 simplex iterations) in 27.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 38), (6, 49), (19, 25), (19, 56), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (32, 73), (33, 41), (66, 67), (40, 73), (10, 33), (10, 40), (11, 39), (11, 59), (12, 67), (12, 39)] Optimize a model with 338 rows, 2850 columns and 65256 nonzeros Presolve time: 0.04s Presolved: 338 rows, 2850 columns, 65256 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 92 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 897.0000000 882.14298 1.66% - 0s 0 0 883.14554 0 95 897.00000 883.14554 1.54% - 0s 0 0 883.14554 0 92 897.00000 883.14554 1.54% - 0s 0 0 883.14554 0 95 897.00000 883.14554 1.54% - 0s 0 0 883.22113 0 99 897.00000 883.22113 1.54% - 0s 0 0 883.25510 0 100 897.00000 883.25510 1.53% - 0s 0 0 883.29699 0 105 897.00000 883.29699 1.53% - 0s 0 0 883.32865 0 103 897.00000 883.32865 1.52% - 1s 0 0 883.35177 0 102 897.00000 883.35177 1.52% - 1s 0 0 883.41207 0 100 897.00000 883.41207 1.51% - 1s 0 0 883.41697 0 104 897.00000 883.41697 1.51% - 1s 0 0 883.43087 0 108 897.00000 883.43087 1.51% - 1s 0 0 883.44237 0 109 897.00000 883.44237 1.51% - 1s 0 0 883.47203 0 107 897.00000 883.47203 1.51% - 1s 0 0 883.49676 0 107 897.00000 883.49676 1.51% - 1s 0 0 883.52786 0 109 897.00000 883.52786 1.50% - 1s 0 0 883.53252 0 112 897.00000 883.53252 1.50% - 1s 0 0 883.53252 0 112 897.00000 883.53252 1.50% - 1s 0 2 883.55022 0 112 897.00000 883.55022 1.50% - 1s H 302 233 896.0000000 884.64819 1.27% 20.9 2s H 472 301 895.0000000 884.94180 1.12% 20.4 2s * 801 419 45 893.0000000 885.20777 0.87% 22.0 4s 994 463 887.71898 18 93 893.00000 885.20777 0.87% 22.0 5s 4032 1598 889.23341 19 84 893.00000 887.86850 0.57% 19.0 10s 7187 2536 889.60651 21 91 893.00000 888.52224 0.50% 18.2 15s H 8745 2379 892.0000000 888.76923 0.36% 17.9 17s 9602 2395 890.33640 27 95 892.00000 888.94651 0.34% 17.8 20s 12286 2410 890.33575 33 79 892.00000 888.94651 0.34% 18.0 25s 15944 1607 890.14544 36 84 892.00000 888.94651 0.34% 17.6 30s 20109 1029 890.90099 35 72 892.00000 889.56062 0.27% 17.1 35s Cutting planes: Gomory: 6 Zero half: 9 Explored 22606 nodes (376697 simplex iterations) in 37.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 17), (4, 45), (19, 25), (19, 56), (22, 29), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (50, 64), (63, 74)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (9, 20), (14, 55), (14, 58), (48, 49), (20, 55), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(32, 66), (66, 67), (8, 54), (11, 32), (11, 39), (12, 39), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 341 rows, 2850 columns and 65723 nonzeros Presolve time: 0.04s Presolved: 341 rows, 2850 columns, 65723 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821430e+02, 263 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14298 0 93 2906.00000 882.14298 69.6% - 0s Another try with MIP start H 0 0 899.0000000 882.14298 1.88% - 0s H 0 0 898.0000000 882.14298 1.77% - 0s 0 0 883.16070 0 99 898.00000 883.16070 1.65% - 0s 0 0 883.16070 0 93 898.00000 883.16070 1.65% - 0s 0 0 883.16070 0 99 898.00000 883.16070 1.65% - 0s 0 0 883.23145 0 100 898.00000 883.23145 1.64% - 0s 0 0 883.29483 0 100 898.00000 883.29483 1.64% - 0s 0 0 883.31775 0 105 898.00000 883.31775 1.63% - 1s 0 0 883.34219 0 106 898.00000 883.34219 1.63% - 1s 0 0 883.36601 0 105 898.00000 883.36601 1.63% - 1s 0 0 883.39919 0 104 898.00000 883.39919 1.63% - 1s 0 0 883.45028 0 108 898.00000 883.45028 1.62% - 1s 0 0 883.47858 0 109 898.00000 883.47858 1.62% - 1s 0 0 883.49360 0 110 898.00000 883.49360 1.62% - 1s 0 0 883.50207 0 111 898.00000 883.50207 1.61% - 1s 0 0 883.50267 0 112 898.00000 883.50267 1.61% - 1s 0 0 883.50818 0 111 898.00000 883.50818 1.61% - 1s 0 0 883.54720 0 109 898.00000 883.54720 1.61% - 1s 0 0 883.55294 0 112 898.00000 883.55294 1.61% - 1s 0 0 883.55643 0 110 898.00000 883.55643 1.61% - 1s 0 0 883.55750 0 113 898.00000 883.55750 1.61% - 1s 0 0 883.55750 0 113 898.00000 883.55750 1.61% - 1s 0 2 883.55921 0 113 898.00000 883.55921 1.61% - 1s * 549 340 34 895.0000000 883.92144 1.24% 16.1 2s * 550 276 34 894.0000000 883.92144 1.13% 16.1 2s H 796 391 893.0000000 884.22457 0.98% 17.3 4s 1188 503 887.22076 22 92 893.00000 885.14438 0.88% 18.7 5s 4272 1886 890.65104 27 83 893.00000 887.25841 0.64% 17.1 10s 7562 3092 891.96000 30 70 893.00000 887.91111 0.57% 16.7 15s 10792 3817 891.42857 29 59 893.00000 888.40615 0.51% 16.8 20s 14816 4336 cutoff 27 893.00000 888.88161 0.46% 16.7 25s 19283 4466 890.79299 24 90 893.00000 889.30580 0.41% 16.6 30s 24010 4237 891.57088 27 78 893.00000 889.70532 0.37% 16.3 35s *25654 2990 29 892.0000000 889.82609 0.24% 16.2 36s 27431 1962 cutoff 32 892.00000 890.26557 0.19% 15.9 40s Cutting planes: Gomory: 5 MIR: 1 Zero half: 15 Mod-K: 1 Explored 29730 nodes (452449 simplex iterations) in 41.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.920000000000e+02, best bound 8.920000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (10, 40), (10, 51), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 56), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 73), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(6, 16), (6, 38), (9, 36), (14, 55), (14, 58), (15, 36), (15, 60), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 29), (22, 48), (29, 62), (30, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(17, 64), (17, 34), (34, 64)] Optimize a model with 344 rows, 2850 columns and 66304 nonzeros Presolve time: 0.04s Presolved: 344 rows, 2850 columns, 66304 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 92 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 895.0000000 882.14472 1.44% - 0s 0 0 883.14719 0 98 895.00000 883.14719 1.32% - 0s 0 0 883.14719 0 93 895.00000 883.14719 1.32% - 0s 0 0 883.14748 0 98 895.00000 883.14748 1.32% - 0s 0 0 883.15964 0 102 895.00000 883.15964 1.32% - 0s 0 0 883.27121 0 104 895.00000 883.27121 1.31% - 0s 0 0 883.33540 0 109 895.00000 883.33540 1.30% - 0s 0 0 883.36401 0 107 895.00000 883.36401 1.30% - 0s 0 0 883.43929 0 107 895.00000 883.43929 1.29% - 0s 0 0 883.51048 0 108 895.00000 883.51048 1.28% - 0s 0 0 883.52849 0 109 895.00000 883.52849 1.28% - 0s 0 0 883.57306 0 108 895.00000 883.57306 1.28% - 0s 0 0 883.58400 0 112 895.00000 883.58400 1.28% - 0s 0 0 883.58917 0 111 895.00000 883.58917 1.27% - 0s 0 0 883.58947 0 110 895.00000 883.58947 1.27% - 0s 0 0 883.58947 0 110 895.00000 883.58947 1.27% - 1s 0 2 883.59014 0 110 895.00000 883.59014 1.27% - 1s 1313 688 892.10747 35 74 895.00000 885.58823 1.05% 20.1 5s * 2400 895 48 893.0000000 886.56108 0.72% 18.8 6s 4255 1667 891.60209 37 77 893.00000 887.64800 0.60% 18.3 10s 7469 2652 891.86538 40 77 893.00000 888.36683 0.52% 17.6 15s 10873 3379 889.80008 30 84 893.00000 888.82371 0.47% 17.2 20s 14769 3965 889.72185 32 83 893.00000 889.20969 0.42% 16.8 25s 18980 4306 891.23801 33 91 893.00000 889.56397 0.38% 16.5 30s 24616 4429 cutoff 25 893.00000 889.91600 0.35% 15.9 35s 30643 4137 891.95238 33 73 893.00000 890.24578 0.31% 15.4 40s 35959 3275 890.97809 33 85 893.00000 890.58308 0.27% 15.0 45s 41815 1325 cutoff 31 893.00000 891.18051 0.20% 14.6 50s Cutting planes: Gomory: 6 MIR: 1 Zero half: 4 Explored 43708 nodes (626590 simplex iterations) in 51.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(3, 75), (11, 32), (11, 59), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (59, 73)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 20), (70, 72), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (21, 38), (21, 71), (55, 60), (31, 49), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 36), (12, 67), (12, 54)] Optimize a model with 347 rows, 2850 columns and 66772 nonzeros Presolve time: 0.04s Presolved: 347 rows, 2850 columns, 66772 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 310 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 94 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 898.0000000 882.14472 1.77% - 0s 0 0 883.14719 0 98 898.00000 883.14719 1.65% - 0s 0 0 883.14719 0 93 898.00000 883.14719 1.65% - 0s 0 0 883.14748 0 98 898.00000 883.14748 1.65% - 0s 0 0 883.15964 0 102 898.00000 883.15964 1.65% - 1s 0 0 883.27218 0 105 898.00000 883.27218 1.64% - 1s 0 0 883.28863 0 105 898.00000 883.28863 1.64% - 1s 0 0 883.33771 0 109 898.00000 883.33771 1.63% - 1s 0 0 883.41593 0 103 898.00000 883.41593 1.62% - 1s 0 0 883.45255 0 105 898.00000 883.45255 1.62% - 1s 0 0 883.46589 0 108 898.00000 883.46589 1.62% - 1s 0 0 883.46895 0 108 898.00000 883.46895 1.62% - 1s 0 0 883.50077 0 108 898.00000 883.50077 1.61% - 1s 0 0 883.52139 0 108 898.00000 883.52139 1.61% - 1s 0 0 883.52158 0 111 898.00000 883.52158 1.61% - 1s 0 0 883.53077 0 108 898.00000 883.53077 1.61% - 1s 0 0 883.53406 0 110 898.00000 883.53406 1.61% - 1s 0 0 883.53406 0 110 898.00000 883.53406 1.61% - 1s 0 0 883.53406 0 110 898.00000 883.53406 1.61% - 1s 0 2 883.55085 0 110 898.00000 883.55085 1.61% - 1s 781 558 886.99148 15 88 898.00000 885.38020 1.41% 20.5 5s H 994 588 896.0000000 885.58543 1.16% 21.2 5s H 1293 630 895.0000000 885.88842 1.02% 20.9 6s * 1746 636 29 894.0000000 886.55245 0.83% 20.5 7s 2365 846 887.18039 29 86 894.00000 886.67520 0.82% 21.1 10s * 2742 867 37 893.0000000 886.67520 0.71% 20.9 10s 5169 1464 890.25789 38 78 893.00000 887.69231 0.59% 19.8 15s 8036 2257 890.90333 43 78 893.00000 888.48966 0.51% 18.9 20s 11506 2973 891.34385 37 87 893.00000 888.98571 0.45% 18.2 25s 15108 3320 891.56731 36 77 893.00000 889.41139 0.40% 17.9 30s 19197 3418 891.51128 39 79 893.00000 889.80702 0.36% 17.5 35s 24395 3060 890.63611 37 74 893.00000 890.24793 0.31% 16.9 40s 29739 1866 891.80769 35 83 893.00000 890.78785 0.25% 16.3 45s Cutting planes: Gomory: 10 MIR: 1 Zero half: 3 Explored 33276 nodes (523653 simplex iterations) in 47.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 34), (4, 45), (51, 56), (33, 45), (42, 65), (42, 57), (43, 65), (43, 44), (34, 64), (17, 64), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (26, 56), (10, 33), (10, 26)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (16, 58), (21, 38), (21, 71), (28, 58), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(32, 66), (39, 66), (8, 15), (11, 32), (11, 59), (12, 67), (12, 39), (15, 60), (40, 73), (59, 73), (60, 67)] Optimize a model with 350 rows, 2850 columns and 67133 nonzeros Presolve time: 0.04s Presolved: 350 rows, 2850 columns, 67133 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 269 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 894.0000000 882.14472 1.33% - 0s 0 0 883.15176 0 100 894.00000 883.15176 1.21% - 0s 0 0 883.15176 0 94 894.00000 883.15176 1.21% - 0s 0 0 883.15176 0 101 894.00000 883.15176 1.21% - 0s 0 0 883.24852 0 104 894.00000 883.24852 1.20% - 0s 0 0 883.29516 0 100 894.00000 883.29516 1.20% - 0s 0 0 883.33705 0 104 894.00000 883.33705 1.19% - 0s 0 0 883.41851 0 101 894.00000 883.41851 1.18% - 0s 0 0 883.45551 0 105 894.00000 883.45551 1.18% - 0s 0 0 883.47054 0 109 894.00000 883.47054 1.18% - 0s 0 0 883.47793 0 110 894.00000 883.47793 1.18% - 0s 0 0 883.50572 0 106 894.00000 883.50572 1.17% - 0s 0 0 883.51486 0 109 894.00000 883.51486 1.17% - 0s 0 0 883.52760 0 111 894.00000 883.52760 1.17% - 1s 0 0 883.52899 0 113 894.00000 883.52899 1.17% - 1s 0 0 883.54788 0 115 894.00000 883.54788 1.17% - 1s 0 0 883.55180 0 117 894.00000 883.55180 1.17% - 1s 0 0 883.55752 0 116 894.00000 883.55752 1.17% - 1s 0 0 883.55966 0 115 894.00000 883.55966 1.17% - 1s 0 0 883.56315 0 114 894.00000 883.56315 1.17% - 1s 0 0 883.56486 0 115 894.00000 883.56486 1.17% - 1s 0 0 883.56486 0 115 894.00000 883.56486 1.17% - 1s 0 2 883.56675 0 115 894.00000 883.56675 1.17% - 1s * 870 518 47 893.0000000 885.44686 0.85% 20.2 4s 994 558 891.84884 28 76 893.00000 885.44686 0.85% 20.4 5s 3880 1495 889.54249 26 82 893.00000 887.73684 0.59% 18.3 10s 7168 2410 891.41667 33 69 893.00000 888.49918 0.50% 17.6 15s 10266 3070 891.35345 27 79 893.00000 888.91527 0.46% 17.2 20s 14263 3490 891.43069 24 80 893.00000 889.40598 0.40% 16.9 25s 19109 3639 891.04286 31 70 893.00000 889.84978 0.35% 16.3 30s 24397 3163 891.79724 24 86 893.00000 890.33077 0.30% 15.8 35s 30357 1372 891.25871 29 72 893.00000 891.04688 0.22% 15.1 40s Cutting planes: Gomory: 6 MIR: 1 Zero half: 6 Explored 32414 nodes (476828 simplex iterations) in 41.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(3, 63), (6, 16), (6, 38), (9, 20), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (29, 62), (29, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (11, 32), (11, 39), (15, 36), (15, 60), (17, 50), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(34, 74), (43, 65), (43, 44), (2, 74), (2, 44), (24, 64), (24, 57), (42, 65), (42, 57)] Optimize a model with 353 rows, 2850 columns and 67514 nonzeros Presolve time: 0.04s Presolved: 353 rows, 2850 columns, 67514 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 263 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 900.0000000 882.14472 1.98% - 0s 0 0 883.15051 0 99 900.00000 883.15051 1.87% - 0s 0 0 883.15051 0 92 900.00000 883.15051 1.87% - 0s 0 0 883.15176 0 100 900.00000 883.15176 1.87% - 0s 0 0 883.15176 0 102 900.00000 883.15176 1.87% - 0s 0 0 883.24466 0 102 900.00000 883.24466 1.86% - 0s 0 0 883.29069 0 103 900.00000 883.29069 1.86% - 1s 0 0 883.31986 0 102 900.00000 883.31986 1.85% - 1s 0 0 883.36461 0 106 900.00000 883.36461 1.85% - 1s 0 0 883.39130 0 103 900.00000 883.39130 1.85% - 1s 0 0 883.48061 0 110 900.00000 883.48061 1.84% - 1s 0 0 883.50829 0 109 900.00000 883.50829 1.83% - 1s 0 0 883.53258 0 109 900.00000 883.53258 1.83% - 1s 0 0 883.53732 0 115 900.00000 883.53732 1.83% - 1s 0 0 883.55667 0 111 900.00000 883.55667 1.83% - 1s 0 0 883.56465 0 110 900.00000 883.56465 1.83% - 1s 0 0 883.57937 0 112 900.00000 883.57937 1.82% - 1s 0 0 883.59865 0 113 900.00000 883.59865 1.82% - 1s 0 0 883.61077 0 114 900.00000 883.61077 1.82% - 1s 0 0 883.62645 0 110 900.00000 883.62645 1.82% - 1s 0 0 883.62735 0 114 900.00000 883.62735 1.82% - 1s 0 0 883.63130 0 112 900.00000 883.63130 1.82% - 1s 0 0 883.64938 0 111 900.00000 883.64938 1.82% - 1s 0 0 883.65568 0 114 900.00000 883.65568 1.82% - 1s 0 0 883.67104 0 110 900.00000 883.67104 1.81% - 1s 0 0 883.67395 0 114 900.00000 883.67395 1.81% - 1s 0 0 883.67601 0 115 900.00000 883.67601 1.81% - 1s 0 0 883.67601 0 115 900.00000 883.67601 1.81% - 1s 0 2 883.67842 0 115 900.00000 883.67842 1.81% - 1s * 520 342 60 897.0000000 884.54118 1.39% 19.3 2s 842 487 889.06007 19 80 897.00000 885.04519 1.33% 21.9 5s * 1186 572 28 896.0000000 885.14883 1.21% 22.3 5s * 2101 899 43 895.0000000 886.45743 0.95% 21.5 7s * 2435 971 36 894.0000000 886.67864 0.82% 21.2 8s 2667 1100 892.70782 50 87 894.00000 886.83922 0.80% 21.4 10s 5314 1729 888.32683 31 79 894.00000 887.64400 0.71% 20.3 15s H 7826 2442 893.0000000 888.29125 0.53% 19.6 19s 8337 2600 891.08969 34 75 893.00000 888.40125 0.51% 19.5 20s 11788 3268 889.37562 30 90 893.00000 889.03120 0.44% 18.8 25s 15625 3677 890.78788 37 75 893.00000 889.47607 0.39% 18.3 30s 19930 3787 890.88095 33 84 893.00000 889.90695 0.35% 17.8 35s 24907 3281 891.71429 45 43 893.00000 890.36121 0.30% 17.3 40s 30361 1914 891.57337 37 89 893.00000 890.92886 0.23% 16.6 45s Cutting planes: Gomory: 4 MIR: 2 Zero half: 8 Explored 33455 nodes (534782 simplex iterations) in 47.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(34, 74), (70, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (61, 71), (61, 72), (48, 49), (21, 38), (21, 71), (23, 65), (23, 62), (31, 49), (62, 70), (37, 38), (37, 48)] adding cut for [(32, 73), (19, 51), (19, 25), (17, 64), (40, 73), (10, 40), (10, 26), (11, 32), (11, 59), (24, 64), (24, 57), (50, 57), (51, 56), (25, 50), (26, 56)] adding cut for [(66, 67), (6, 16), (6, 30), (39, 66), (12, 67), (12, 60), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55)] Optimize a model with 356 rows, 2850 columns and 67883 nonzeros Presolve time: 0.04s Presolved: 356 rows, 2850 columns, 67883 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 277 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 92 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 102 902.00000 883.15176 2.09% - 0s 0 0 883.24466 0 102 902.00000 883.24466 2.08% - 1s 0 0 883.29069 0 103 902.00000 883.29069 2.07% - 1s 0 0 883.31986 0 102 902.00000 883.31986 2.07% - 1s 0 0 883.36235 0 107 902.00000 883.36235 2.07% - 1s 0 0 883.40929 0 109 902.00000 883.40929 2.06% - 1s 0 0 883.42249 0 109 902.00000 883.42249 2.06% - 1s 0 0 883.47078 0 109 902.00000 883.47078 2.05% - 1s 0 0 883.49838 0 111 902.00000 883.49838 2.05% - 1s 0 0 883.51114 0 109 902.00000 883.51114 2.05% - 1s 0 0 883.51721 0 110 902.00000 883.51721 2.05% - 1s 0 0 883.52954 0 112 902.00000 883.52954 2.05% - 1s 0 0 883.54984 0 113 902.00000 883.54984 2.05% - 1s 0 0 883.56770 0 114 902.00000 883.56770 2.04% - 1s 0 0 883.58165 0 113 902.00000 883.58165 2.04% - 1s 0 0 883.58607 0 112 902.00000 883.58607 2.04% - 1s 0 0 883.59442 0 111 902.00000 883.59442 2.04% - 1s 0 0 883.59938 0 112 902.00000 883.59938 2.04% - 1s 0 0 883.60099 0 113 902.00000 883.60099 2.04% - 1s 0 0 883.60099 0 113 902.00000 883.60099 2.04% - 1s 0 2 883.60099 0 113 902.00000 883.60099 2.04% - 1s * 560 446 56 901.0000000 884.34945 1.85% 20.3 2s * 652 463 19 900.0000000 884.75115 1.69% 20.0 2s H 752 471 898.0000000 885.06430 1.44% 19.2 3s 909 587 886.25141 8 111 898.00000 885.12192 1.43% 18.3 5s * 1067 595 45 895.0000000 885.12192 1.10% 20.0 6s H 1294 627 894.0000000 885.12192 0.99% 20.8 6s 2161 906 891.58665 36 89 894.00000 886.17641 0.88% 20.9 10s H 3590 1091 893.0000000 887.06815 0.66% 19.8 12s 4992 1601 891.13646 35 81 893.00000 887.68580 0.60% 19.4 15s 8142 2419 888.90361 32 76 893.00000 888.32095 0.52% 18.6 20s 11701 3114 889.69042 31 90 893.00000 888.80263 0.47% 18.0 25s 15856 3708 891.91176 35 77 893.00000 889.23404 0.42% 17.5 30s 20104 4041 891.05500 37 79 893.00000 889.55479 0.39% 16.9 35s 25727 4065 cutoff 35 893.00000 889.93667 0.34% 16.3 40s 31258 3554 891.88060 35 64 893.00000 890.30548 0.30% 15.8 45s 36829 2282 cutoff 34 893.00000 890.76405 0.25% 15.5 50s Cutting planes: Gomory: 4 MIR: 1 Zero half: 8 Explored 40854 nodes (612051 simplex iterations) in 52.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (8, 54), (14, 55), (14, 58), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 44), (24, 57), (29, 62), (29, 63), (34, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 73), (17, 64), (17, 50), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(66, 67), (39, 66), (9, 36), (12, 67), (12, 60), (15, 36), (15, 60)] Optimize a model with 359 rows, 2850 columns and 68355 nonzeros Presolve time: 0.04s Presolved: 359 rows, 2850 columns, 68355 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 247 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 94 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 901.0000000 882.14472 2.09% - 0s 0 0 883.14019 0 100 901.00000 883.14019 1.98% - 0s 0 0 883.14019 0 93 901.00000 883.14019 1.98% - 0s 0 0 883.15176 0 100 901.00000 883.15176 1.98% - 0s 0 0 883.15176 0 102 901.00000 883.15176 1.98% - 0s 0 0 883.24639 0 102 901.00000 883.24639 1.97% - 1s 0 0 883.29014 0 103 901.00000 883.29014 1.97% - 1s 0 0 883.30122 0 105 901.00000 883.30122 1.96% - 1s 0 0 883.32911 0 105 901.00000 883.32911 1.96% - 1s 0 0 883.34024 0 106 901.00000 883.34024 1.96% - 1s 0 0 883.36849 0 106 901.00000 883.36849 1.96% - 1s 0 0 883.45874 0 105 901.00000 883.45874 1.95% - 1s 0 0 883.48708 0 109 901.00000 883.48708 1.94% - 1s 0 0 883.50805 0 107 901.00000 883.50805 1.94% - 1s 0 0 883.52439 0 110 901.00000 883.52439 1.94% - 1s 0 0 883.53074 0 113 901.00000 883.53074 1.94% - 1s 0 0 883.54648 0 109 901.00000 883.54648 1.94% - 1s 0 0 883.55223 0 115 901.00000 883.55223 1.94% - 1s 0 0 883.59352 0 109 901.00000 883.59352 1.93% - 1s 0 0 883.61796 0 110 901.00000 883.61796 1.93% - 1s 0 0 883.63886 0 111 901.00000 883.63886 1.93% - 1s 0 0 883.64825 0 111 901.00000 883.64825 1.93% - 1s 0 0 883.65248 0 115 901.00000 883.65248 1.93% - 1s 0 0 883.65874 0 119 901.00000 883.65874 1.92% - 1s 0 0 883.65874 0 119 901.00000 883.65874 1.92% - 1s 0 2 883.66122 0 119 901.00000 883.66122 1.92% - 1s H 330 262 900.0000000 884.70624 1.70% 21.2 2s * 444 253 47 895.0000000 884.71396 1.15% 20.8 2s 784 429 889.44651 26 86 895.00000 885.24859 1.09% 22.3 5s * 940 417 34 893.0000000 885.24859 0.87% 22.9 5s 3620 1436 890.52252 20 77 893.00000 887.65609 0.60% 19.1 10s 6549 2432 889.90469 22 85 893.00000 888.43694 0.51% 18.2 15s 9800 3154 890.85367 17 76 893.00000 888.92862 0.46% 17.7 20s 13525 3669 890.21591 21 74 893.00000 889.35857 0.41% 17.3 25s 17762 3920 cutoff 26 893.00000 889.75877 0.36% 17.0 30s 22735 3659 891.27326 30 75 893.00000 890.17154 0.32% 16.4 35s 28363 2523 cutoff 29 893.00000 890.69776 0.26% 15.9 40s Cutting planes: Gomory: 6 MIR: 2 Zero half: 7 Explored 33192 nodes (504526 simplex iterations) in 44.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 66), (14, 53), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 360 rows, 2850 columns and 68950 nonzeros Presolve time: 0.05s Presolved: 360 rows, 2850 columns, 68950 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 94 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 1s 0 0 883.15176 0 102 902.00000 883.15176 2.09% - 1s 0 0 883.24639 0 102 902.00000 883.24639 2.08% - 1s 0 0 883.28899 0 103 902.00000 883.28899 2.07% - 1s 0 0 883.41165 0 100 902.00000 883.41165 2.06% - 1s 0 0 883.44531 0 105 902.00000 883.44531 2.06% - 1s 0 0 883.45448 0 104 902.00000 883.45448 2.06% - 1s 0 0 883.45934 0 108 902.00000 883.45934 2.06% - 1s 0 0 883.46940 0 107 902.00000 883.46940 2.05% - 1s 0 0 883.49891 0 105 902.00000 883.49891 2.05% - 1s 0 0 883.51713 0 109 902.00000 883.51713 2.05% - 1s 0 0 883.52162 0 111 902.00000 883.52162 2.05% - 1s 0 0 883.52708 0 112 902.00000 883.52708 2.05% - 1s 0 0 883.52708 0 112 902.00000 883.52708 2.05% - 1s 0 2 883.53042 0 112 902.00000 883.53042 2.05% - 1s * 267 230 46 901.0000000 884.33982 1.85% 18.8 2s * 359 277 54 899.0000000 884.49104 1.61% 19.3 2s 622 459 888.17382 13 92 899.00000 885.12072 1.54% 20.8 5s * 771 497 43 897.0000000 885.12072 1.32% 22.0 5s * 811 461 30 893.0000000 885.12072 0.88% 22.2 5s 2357 774 887.40024 26 87 893.00000 887.06089 0.67% 21.4 10s 5356 1824 889.99488 34 91 893.00000 888.16497 0.54% 19.4 15s 8232 2476 890.88709 35 72 893.00000 888.73333 0.48% 18.8 20s 11839 2915 890.18252 33 86 893.00000 889.22908 0.42% 18.2 25s 15308 3076 cutoff 32 893.00000 889.59167 0.38% 17.9 30s 19841 2924 890.96165 33 83 893.00000 890.03645 0.33% 17.4 35s 25414 2008 cutoff 34 893.00000 890.57870 0.27% 16.7 40s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Mod-K: 1 Explored 29473 nodes (473432 simplex iterations) in 43.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(3, 75), (4, 17), (4, 50), (9, 20), (11, 32), (11, 66), (15, 20), (15, 60), (17, 64), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (14, 55), (14, 58), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (53, 55)] Optimize a model with 362 rows, 2850 columns and 69505 nonzeros Presolve time: 0.05s Presolved: 362 rows, 2850 columns, 69505 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 282 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 94 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 901.0000000 882.14472 2.09% - 0s 0 0 883.15176 0 100 901.00000 883.15176 1.98% - 0s 0 0 883.15176 0 92 901.00000 883.15176 1.98% - 0s 0 0 883.15176 0 100 901.00000 883.15176 1.98% - 1s 0 0 883.15176 0 102 901.00000 883.15176 1.98% - 1s 0 0 883.24639 0 102 901.00000 883.24639 1.97% - 1s 0 0 883.28899 0 103 901.00000 883.28899 1.97% - 1s 0 0 883.41165 0 100 901.00000 883.41165 1.95% - 1s 0 0 883.44531 0 105 901.00000 883.44531 1.95% - 1s 0 0 883.45448 0 104 901.00000 883.45448 1.95% - 1s 0 0 883.45934 0 108 901.00000 883.45934 1.95% - 1s 0 0 883.46940 0 107 901.00000 883.46940 1.95% - 1s 0 0 883.49143 0 106 901.00000 883.49143 1.94% - 1s 0 0 883.50489 0 110 901.00000 883.50489 1.94% - 1s 0 0 883.52305 0 111 901.00000 883.52305 1.94% - 1s 0 0 883.53515 0 110 901.00000 883.53515 1.94% - 1s 0 0 883.54911 0 108 901.00000 883.54911 1.94% - 1s 0 0 883.55690 0 111 901.00000 883.55690 1.94% - 1s 0 0 883.55876 0 113 901.00000 883.55876 1.94% - 1s 0 0 883.56501 0 111 901.00000 883.56501 1.94% - 1s 0 0 883.57483 0 111 901.00000 883.57483 1.93% - 1s 0 0 883.58435 0 113 901.00000 883.58435 1.93% - 1s 0 0 883.58742 0 114 901.00000 883.58742 1.93% - 1s 0 0 883.59136 0 115 901.00000 883.59136 1.93% - 1s 0 0 883.59136 0 115 901.00000 883.59136 1.93% - 1s 0 2 883.59166 0 115 901.00000 883.59166 1.93% - 1s * 63 51 38 894.0000000 883.63665 1.16% 25.2 2s 663 406 890.15286 36 83 894.00000 884.74407 1.04% 20.8 5s 3153 1452 892.57955 26 73 894.00000 887.44663 0.73% 19.8 10s 6136 2807 891.88525 27 76 894.00000 888.08694 0.66% 18.8 15s * 7678 3109 27 893.0000000 888.32653 0.52% 18.5 17s 9319 3511 891.39323 28 76 893.00000 888.59035 0.49% 18.4 20s 12707 4079 889.68356 22 77 893.00000 889.01136 0.45% 18.1 25s 16536 4498 891.59804 26 62 893.00000 889.35714 0.41% 17.7 30s 21087 4681 891.99675 31 76 893.00000 889.67771 0.37% 17.3 35s 26081 4630 891.15134 28 79 893.00000 889.95063 0.34% 16.8 40s 31586 4235 890.96634 24 88 893.00000 890.25923 0.31% 16.4 45s 36953 3392 891.23864 22 83 893.00000 890.58447 0.27% 16.0 50s 41667 2006 891.61063 27 78 893.00000 891.01400 0.22% 15.7 55s Cutting planes: Gomory: 4 MIR: 2 Zero half: 6 Explored 44921 nodes (683176 simplex iterations) in 57.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (33, 45), (33, 51), (37, 70), (37, 72), (41, 45), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (9, 20), (10, 40), (10, 26), (11, 32), (11, 39), (15, 20), (15, 60), (26, 56), (59, 73), (60, 67)] adding cut for [(2, 64), (2, 74), (6, 49), (6, 30), (34, 64), (48, 49), (22, 48), (22, 29), (29, 63), (30, 46), (63, 74)] Optimize a model with 365 rows, 2850 columns and 70027 nonzeros Presolve time: 0.05s Presolved: 365 rows, 2850 columns, 70027 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 263 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 893.0000000 882.14472 1.22% - 0s 0 0 883.15176 0 100 893.00000 883.15176 1.10% - 0s 0 0 883.15176 0 92 893.00000 883.15176 1.10% - 0s 0 0 883.15176 0 100 893.00000 883.15176 1.10% - 0s 0 0 883.15176 0 102 893.00000 883.15176 1.10% - 0s 0 0 883.24466 0 102 893.00000 883.24466 1.09% - 0s 0 0 883.29126 0 105 893.00000 883.29126 1.09% - 0s 0 0 883.33149 0 105 893.00000 883.33149 1.08% - 0s 0 0 883.41848 0 108 893.00000 883.41848 1.07% - 0s 0 0 883.44525 0 107 893.00000 883.44525 1.07% - 0s 0 0 883.46730 0 108 893.00000 883.46730 1.07% - 0s 0 0 883.48391 0 110 893.00000 883.48391 1.07% - 0s 0 0 883.49651 0 111 893.00000 883.49651 1.06% - 0s 0 0 883.51077 0 112 893.00000 883.51077 1.06% - 0s 0 0 883.51159 0 114 893.00000 883.51159 1.06% - 1s 0 0 883.51329 0 113 893.00000 883.51329 1.06% - 1s 0 0 883.52851 0 113 893.00000 883.52851 1.06% - 1s 0 0 883.55022 0 113 893.00000 883.55022 1.06% - 1s 0 0 883.55107 0 113 893.00000 883.55107 1.06% - 1s 0 0 883.55681 0 118 893.00000 883.55681 1.06% - 1s 0 0 883.55681 0 118 893.00000 883.55681 1.06% - 1s 0 2 883.56435 0 118 893.00000 883.56435 1.06% - 1s 852 481 888.28052 27 89 893.00000 885.56392 0.83% 21.0 5s 3695 1507 888.27941 23 89 893.00000 887.53679 0.61% 18.9 10s 6732 2372 890.33846 27 78 893.00000 888.34199 0.52% 18.4 15s 9598 2958 889.19211 28 88 893.00000 888.89470 0.46% 18.0 20s 13444 3407 891.61811 29 70 893.00000 889.33774 0.41% 17.6 25s 17557 3546 890.72000 30 70 893.00000 889.75398 0.36% 17.3 30s 22359 3350 891.80114 33 77 893.00000 890.14953 0.32% 16.7 35s 27949 2380 cutoff 30 893.00000 890.66667 0.26% 16.1 40s Cutting planes: Gomory: 6 Zero half: 8 Explored 32558 nodes (500439 simplex iterations) in 43.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (3, 75), (10, 26), (10, 40), (11, 32), (11, 39), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (26, 56), (28, 58), (29, 62), (29, 63), (32, 56), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(33, 51), (33, 45), (4, 45), (17, 50), (19, 51), (19, 25), (25, 50)] Optimize a model with 367 rows, 2850 columns and 70916 nonzeros Presolve time: 0.05s Presolved: 367 rows, 2850 columns, 70916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 277 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 92 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 908.0000000 882.14472 2.85% - 0s H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15051 0 99 902.00000 883.15051 2.09% - 0s 0 0 883.15051 0 92 902.00000 883.15051 2.09% - 0s 0 0 883.15051 0 99 902.00000 883.15051 2.09% - 0s 0 0 883.15296 0 99 902.00000 883.15296 2.09% - 0s 0 0 883.27636 0 109 902.00000 883.27636 2.08% - 1s 0 0 883.33448 0 106 902.00000 883.33448 2.07% - 1s 0 0 883.37024 0 106 902.00000 883.37024 2.07% - 1s 0 0 883.43762 0 104 902.00000 883.43762 2.06% - 1s 0 0 883.44662 0 105 902.00000 883.44662 2.06% - 1s 0 0 883.59518 0 107 902.00000 883.59518 2.04% - 1s 0 0 883.62158 0 109 902.00000 883.62158 2.04% - 1s 0 0 883.62426 0 110 902.00000 883.62426 2.04% - 1s 0 0 883.64181 0 110 902.00000 883.64181 2.04% - 1s 0 0 883.64684 0 110 902.00000 883.64684 2.03% - 1s 0 0 883.65155 0 111 902.00000 883.65155 2.03% - 1s 0 0 883.65155 0 111 902.00000 883.65155 2.03% - 1s 0 2 883.65276 0 111 902.00000 883.65276 2.03% - 1s * 197 167 58 901.0000000 884.23456 1.86% 20.6 2s * 446 316 43 898.0000000 884.58695 1.49% 19.6 2s 851 517 887.23681 19 94 898.00000 885.53707 1.39% 21.5 5s * 899 470 37 895.0000000 885.53707 1.06% 21.8 5s H 1908 664 894.0000000 886.60096 0.83% 21.3 7s 2638 874 893.00000 58 42 894.00000 886.72636 0.81% 21.7 10s 5464 1623 892.56471 47 75 894.00000 888.35245 0.63% 20.3 15s * 5814 1539 44 893.0000000 888.43577 0.51% 20.1 15s 8265 1916 890.14083 40 73 893.00000 889.18852 0.43% 19.4 20s 11515 2091 890.27212 42 90 893.00000 889.73396 0.37% 18.6 25s 15473 1788 891.21495 42 83 893.00000 890.37193 0.29% 17.9 30s Cutting planes: Gomory: 6 MIR: 2 Zero half: 7 Explored 19854 nodes (333938 simplex iterations) in 34.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (11, 32), (11, 66), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (26, 33), (26, 56), (32, 56), (37, 48), (37, 70), (48, 49), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(4, 45), (4, 17), (42, 44), (42, 57), (43, 65), (43, 44), (45, 51), (19, 51), (19, 25), (22, 75), (22, 62), (24, 50), (24, 57), (25, 50), (29, 62), (23, 65), (23, 29)] adding cut for [(39, 59), (40, 73), (10, 40), (10, 41), (12, 39), (12, 54), (59, 73)] Optimize a model with 370 rows, 2850 columns and 71397 nonzeros Presolve time: 0.05s Presolved: 370 rows, 2850 columns, 71397 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 262 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 94 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 905.0000000 882.14472 2.53% - 0s H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.14019 0 100 902.00000 883.14019 2.09% - 0s 0 0 883.14019 0 93 902.00000 883.14019 2.09% - 0s 0 0 883.15176 0 101 902.00000 883.15176 2.09% - 1s 0 0 883.25453 0 102 902.00000 883.25453 2.08% - 1s 0 0 883.31089 0 104 902.00000 883.31089 2.07% - 1s 0 0 883.34182 0 106 902.00000 883.34182 2.07% - 1s 0 0 883.36184 0 105 902.00000 883.36184 2.07% - 1s 0 0 883.37524 0 110 902.00000 883.37524 2.06% - 1s 0 0 883.39532 0 108 902.00000 883.39532 2.06% - 1s 0 0 883.42007 0 112 902.00000 883.42007 2.06% - 1s 0 0 883.43743 0 110 902.00000 883.43743 2.06% - 1s 0 0 883.51141 0 108 902.00000 883.51141 2.05% - 1s 0 0 883.54019 0 111 902.00000 883.54019 2.05% - 1s 0 0 883.56017 0 110 902.00000 883.56017 2.04% - 1s 0 0 883.56216 0 112 902.00000 883.56216 2.04% - 1s 0 0 883.56271 0 112 902.00000 883.56271 2.04% - 1s 0 0 883.56271 0 112 902.00000 883.56271 2.04% - 1s 0 2 883.56271 0 112 902.00000 883.56271 2.04% - 1s * 567 239 29 894.0000000 884.16651 1.10% 19.6 2s 934 399 884.89355 13 92 894.00000 884.89355 1.02% 21.5 5s * 3112 1274 27 893.0000000 887.28553 0.64% 20.2 9s 3531 1439 889.16079 23 92 893.00000 887.45455 0.62% 20.0 10s 6594 2406 891.01912 25 92 893.00000 888.23200 0.53% 19.1 15s 9500 2992 891.12268 26 79 893.00000 888.65960 0.49% 18.8 20s 12990 3503 cutoff 23 893.00000 889.09433 0.44% 18.4 25s 16717 3814 891.56667 25 81 893.00000 889.44545 0.40% 18.0 30s 20798 3859 890.42494 24 75 893.00000 889.77067 0.36% 17.6 35s 26096 3425 891.22846 24 88 893.00000 890.17730 0.32% 17.0 40s 31663 2294 cutoff 26 893.00000 890.66974 0.26% 16.5 45s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 36230 nodes (574056 simplex iterations) in 49.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(10, 26), (10, 41), (14, 28), (14, 55), (16, 38), (16, 58), (19, 51), (19, 56), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 50), (24, 57), (25, 45), (25, 50), (26, 56), (29, 62), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (39, 66), (40, 73), (9, 36), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (20, 36), (59, 73), (60, 67)] Optimize a model with 372 rows, 2850 columns and 72016 nonzeros Presolve time: 0.05s Presolved: 372 rows, 2850 columns, 72016 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 320 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 94 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 903.0000000 882.14472 2.31% - 0s H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.14019 0 100 902.00000 883.14019 2.09% - 0s 0 0 883.14019 0 92 902.00000 883.14019 2.09% - 1s 0 0 883.15176 0 101 902.00000 883.15176 2.09% - 1s 0 0 883.26214 0 101 902.00000 883.26214 2.08% - 1s 0 0 883.29791 0 104 902.00000 883.29791 2.07% - 1s 0 0 883.34275 0 108 902.00000 883.34275 2.07% - 1s 0 0 883.39974 0 107 902.00000 883.39974 2.06% - 1s 0 0 883.42158 0 109 902.00000 883.42158 2.06% - 1s 0 0 883.43177 0 111 902.00000 883.43177 2.06% - 1s 0 0 883.45927 0 111 902.00000 883.45927 2.06% - 1s 0 0 883.49025 0 110 902.00000 883.49025 2.05% - 1s 0 0 883.51577 0 114 902.00000 883.51577 2.05% - 1s 0 0 883.53547 0 112 902.00000 883.53547 2.05% - 1s 0 0 883.53702 0 114 902.00000 883.53702 2.05% - 1s 0 0 883.54163 0 114 902.00000 883.54163 2.05% - 1s 0 2 883.54176 0 114 902.00000 883.54176 2.05% - 1s * 271 221 102 900.0000000 883.87958 1.79% 18.3 2s * 521 164 19 893.0000000 884.26391 0.98% 17.3 2s 913 323 887.62347 21 95 893.00000 884.79845 0.92% 19.9 5s 3840 1578 889.92028 36 73 893.00000 887.82688 0.58% 17.9 10s 7065 2576 891.48013 23 83 893.00000 888.66211 0.49% 17.1 15s 10508 3150 891.49722 26 84 893.00000 889.19463 0.43% 16.6 20s 14735 3336 891.80000 24 74 893.00000 889.71274 0.37% 16.4 25s 19277 2976 cutoff 30 893.00000 890.19190 0.31% 16.2 30s 24830 1698 891.80460 26 71 893.00000 890.83989 0.24% 15.5 35s Cutting planes: Gomory: 1 Zero half: 11 Explored 27796 nodes (415661 simplex iterations) in 37.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 30), (6, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 44), (24, 57), (29, 62), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 40), (19, 51), (19, 25), (34, 64), (10, 40), (10, 26), (11, 32), (11, 73), (17, 64), (17, 50), (51, 56), (25, 50), (26, 56), (59, 73)] adding cut for [(66, 67), (39, 66), (12, 67), (12, 60), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55)] Optimize a model with 375 rows, 2850 columns and 72491 nonzeros Presolve time: 0.05s Presolved: 375 rows, 2850 columns, 72491 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 304 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 93 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 92 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.17196 0 103 902.00000 883.17196 2.09% - 0s 0 0 883.32576 0 102 902.00000 883.32576 2.07% - 1s 0 0 883.34242 0 106 902.00000 883.34242 2.07% - 1s 0 0 883.36012 0 107 902.00000 883.36012 2.07% - 1s 0 0 883.45320 0 105 902.00000 883.45320 2.06% - 1s 0 0 883.47036 0 106 902.00000 883.47036 2.05% - 1s 0 0 883.50097 0 107 902.00000 883.50097 2.05% - 1s 0 0 883.50749 0 108 902.00000 883.50749 2.05% - 1s 0 0 883.52202 0 110 902.00000 883.52202 2.05% - 1s 0 0 883.52703 0 109 902.00000 883.52703 2.05% - 1s 0 0 883.53040 0 110 902.00000 883.53040 2.05% - 1s 0 0 883.53711 0 110 902.00000 883.53711 2.05% - 1s 0 0 883.53711 0 110 902.00000 883.53711 2.05% - 1s 0 2 883.53962 0 110 902.00000 883.53962 2.05% - 1s * 134 110 81 901.0000000 883.87255 1.90% 22.2 1s H 561 433 900.0000000 884.61572 1.71% 18.9 2s 752 570 889.86590 31 85 900.00000 884.85932 1.68% 19.2 5s * 900 598 50 898.0000000 884.85932 1.46% 20.1 5s * 1240 701 52 897.0000000 885.35941 1.30% 20.9 6s * 1620 718 40 896.0000000 886.13127 1.10% 20.5 6s * 2100 825 50 895.0000000 886.19356 0.98% 21.1 9s H 2407 839 894.0000000 886.19356 0.87% 21.2 9s 2594 877 887.59200 28 83 894.00000 886.39587 0.85% 21.1 10s * 3776 945 43 893.0000000 887.38928 0.63% 20.4 12s 4048 1042 888.66099 44 91 893.00000 887.51667 0.61% 20.7 15s 6682 1231 891.79726 51 81 893.00000 887.91749 0.57% 20.0 20s 9805 1883 891.38477 53 86 893.00000 888.73353 0.48% 19.1 25s 13279 2320 890.85633 54 85 893.00000 889.36579 0.41% 18.4 30s 17528 2351 cutoff 52 893.00000 889.91250 0.35% 17.8 35s 21856 1681 cutoff 54 893.00000 890.53778 0.28% 17.3 40s Cutting planes: Gomory: 3 Zero half: 9 Mod-K: 1 Explored 25513 nodes (422803 simplex iterations) in 43.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(34, 74), (37, 70), (37, 48), (70, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (23, 65), (23, 62), (28, 58), (16, 58), (16, 38)] adding cut for [(32, 56), (19, 51), (19, 25), (17, 64), (11, 32), (11, 73), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(66, 67), (39, 66), (12, 67), (12, 60), (14, 53), (14, 55), (15, 20), (15, 60), (20, 55)] Optimize a model with 378 rows, 2850 columns and 72837 nonzeros Presolve time: 0.05s Presolved: 378 rows, 2850 columns, 72837 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 304 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 92 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 906.0000000 882.14472 2.63% - 0s H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 92 902.00000 883.15176 2.09% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 1s 0 0 883.17196 0 103 902.00000 883.17196 2.09% - 1s 0 0 883.32576 0 102 902.00000 883.32576 2.07% - 1s 0 0 883.34242 0 106 902.00000 883.34242 2.07% - 1s 0 0 883.36012 0 107 902.00000 883.36012 2.07% - 1s 0 0 883.46588 0 105 902.00000 883.46588 2.05% - 1s 0 0 883.46852 0 106 902.00000 883.46852 2.05% - 1s 0 0 883.50525 0 105 902.00000 883.50525 2.05% - 1s 0 0 883.52845 0 106 902.00000 883.52845 2.05% - 1s 0 0 883.52865 0 105 902.00000 883.52865 2.05% - 1s 0 0 883.53094 0 109 902.00000 883.53094 2.05% - 1s 0 0 883.54131 0 110 902.00000 883.54131 2.05% - 1s 0 0 883.54426 0 110 902.00000 883.54426 2.05% - 1s 0 2 883.54843 0 110 902.00000 883.54843 2.05% - 1s * 65 59 38 895.0000000 883.87036 1.24% 25.9 2s 910 513 890.40032 30 84 895.00000 885.46194 1.07% 21.8 5s * 1364 562 42 894.0000000 886.31030 0.86% 21.5 5s 3676 1579 892.99549 25 69 894.00000 887.75470 0.70% 19.8 10s * 6118 2255 23 893.0000000 888.40347 0.51% 18.9 14s 6630 2354 890.75133 19 80 893.00000 888.50016 0.50% 18.8 15s 9587 2790 891.46851 25 81 893.00000 889.06672 0.44% 18.5 20s 13079 3037 891.63562 23 81 893.00000 889.59295 0.38% 18.1 25s 16785 2912 891.13636 19 77 893.00000 890.05997 0.33% 17.7 30s 20798 2342 cutoff 22 893.00000 890.55368 0.27% 17.2 35s Cutting planes: Gomory: 4 MIR: 1 Zero half: 4 Explored 25938 nodes (416140 simplex iterations) in 39.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(48, 49), (6, 38), (6, 16), (9, 55), (14, 55), (14, 58), (16, 58), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(19, 56), (19, 25), (33, 51), (34, 64), (34, 74), (40, 73), (10, 33), (10, 40), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(2, 44), (2, 63), (42, 43), (42, 44), (43, 65), (3, 75), (22, 75), (22, 62), (23, 65), (23, 29), (29, 62)] adding cut for [(32, 66), (66, 67), (8, 54), (11, 32), (11, 39), (12, 39), (12, 54), (15, 20), (15, 60), (20, 36), (60, 67)] Optimize a model with 382 rows, 2850 columns and 73225 nonzeros Presolve time: 0.05s Presolved: 382 rows, 2850 columns, 73225 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.821447e+02, 293 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.14472 0 92 2906.00000 882.14472 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.14472 2.20% - 0s 0 0 883.15051 0 99 902.00000 883.15051 2.09% - 0s 0 0 883.15051 0 92 902.00000 883.15051 2.09% - 0s 0 0 883.15176 0 100 902.00000 883.15176 2.09% - 1s 0 0 883.17196 0 103 902.00000 883.17196 2.09% - 1s 0 0 883.32576 0 102 902.00000 883.32576 2.07% - 1s 0 0 883.34242 0 106 902.00000 883.34242 2.07% - 1s 0 0 883.36012 0 107 902.00000 883.36012 2.07% - 1s 0 0 883.45320 0 105 902.00000 883.45320 2.06% - 1s 0 0 883.47036 0 106 902.00000 883.47036 2.05% - 1s 0 0 883.50097 0 107 902.00000 883.50097 2.05% - 1s 0 0 883.50749 0 108 902.00000 883.50749 2.05% - 1s 0 0 883.52202 0 110 902.00000 883.52202 2.05% - 1s 0 0 883.52570 0 109 902.00000 883.52570 2.05% - 1s 0 0 883.52778 0 108 902.00000 883.52778 2.05% - 1s 0 0 883.52905 0 107 902.00000 883.52905 2.05% - 1s 0 0 883.53481 0 113 902.00000 883.53481 2.05% - 1s 0 0 883.53481 0 113 902.00000 883.53481 2.05% - 1s 0 2 883.53600 0 113 902.00000 883.53600 2.05% - 1s * 93 91 59 901.0000000 883.87214 1.90% 23.1 2s 613 496 893.01389 35 107 901.00000 884.58615 1.82% 18.7 5s * 734 530 69 900.0000000 884.58615 1.71% 20.5 5s * 929 569 58 899.0000000 884.58615 1.60% 21.2 6s * 1170 548 36 895.0000000 884.58615 1.16% 21.9 6s 2125 857 887.47243 30 85 895.00000 886.39516 0.96% 22.2 10s 4878 2045 892.61905 37 75 895.00000 887.95320 0.79% 19.8 15s * 6424 2059 38 893.0000000 888.23500 0.53% 19.5 17s 8017 2339 890.01951 30 89 893.00000 888.59639 0.49% 19.3 20s 11167 2730 891.23285 31 81 893.00000 889.13714 0.43% 18.9 25s 14816 2812 890.66667 32 55 893.00000 889.64554 0.38% 18.6 30s 18889 2501 cutoff 36 893.00000 890.15818 0.32% 18.1 35s 23420 1314 cutoff 34 893.00000 890.92868 0.23% 17.5 40s Cutting planes: Gomory: 4 MIR: 1 Zero half: 3 Explored 25467 nodes (429524 simplex iterations) in 41.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 63), (29, 75), (30, 46), (30, 49), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 54), (12, 60), (26, 56), (59, 73), (60, 67)] adding cut for [(34, 64), (34, 74), (33, 51), (33, 45), (41, 45), (50, 57), (19, 51), (19, 25), (24, 64), (24, 57), (25, 50)] Optimize a model with 385 rows, 2850 columns and 73733 nonzeros Presolve time: 0.05s Presolved: 385 rows, 2850 columns, 73733 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 274 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 897.0000000 882.38310 1.63% - 0s 0 0 883.29105 0 101 897.00000 883.29105 1.53% - 0s 0 0 883.29105 0 95 897.00000 883.29105 1.53% - 0s 0 0 883.30251 0 100 897.00000 883.30251 1.53% - 1s 0 0 883.44831 0 105 897.00000 883.44831 1.51% - 1s 0 0 883.47580 0 106 897.00000 883.47580 1.51% - 1s 0 0 883.51776 0 108 897.00000 883.51776 1.50% - 1s 0 0 883.54404 0 109 897.00000 883.54404 1.50% - 1s 0 0 883.58986 0 109 897.00000 883.58986 1.49% - 1s 0 0 883.61265 0 111 897.00000 883.61265 1.49% - 1s 0 0 883.64291 0 111 897.00000 883.64291 1.49% - 1s 0 0 883.68914 0 109 897.00000 883.68914 1.48% - 1s 0 0 883.69245 0 113 897.00000 883.69245 1.48% - 1s 0 0 883.69565 0 114 897.00000 883.69565 1.48% - 1s 0 2 883.69838 0 114 897.00000 883.69838 1.48% - 1s H 40 40 896.0000000 883.89221 1.35% 27.6 1s 696 474 887.91285 15 99 896.00000 885.01554 1.23% 22.0 5s * 955 542 43 895.0000000 885.81664 1.03% 22.8 5s * 1526 620 24 894.0000000 886.95725 0.79% 21.7 7s * 2126 728 26 893.0000000 887.43437 0.62% 20.9 8s 3097 1125 cutoff 27 893.00000 887.93182 0.57% 20.2 10s 5604 1708 889.78315 19 86 893.00000 888.78399 0.47% 19.3 15s 8256 2113 890.52352 19 79 893.00000 889.33333 0.41% 18.6 20s 11437 2272 891.43255 21 82 893.00000 889.85246 0.35% 18.0 25s 15308 1903 891.38462 26 54 893.00000 890.39693 0.29% 17.4 30s Cutting planes: Gomory: 9 MIR: 1 Zero half: 9 Explored 19864 nodes (325532 simplex iterations) in 34.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(10, 33), (10, 40), (11, 32), (11, 59), (14, 28), (14, 58), (16, 38), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 73), (33, 51), (37, 70), (37, 72), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(39, 66), (9, 55), (12, 66), (12, 67), (15, 20), (15, 60), (20, 55), (60, 67)] adding cut for [(6, 49), (6, 30), (48, 49), (22, 48), (22, 29), (29, 75), (30, 46)] Optimize a model with 388 rows, 2850 columns and 74293 nonzeros Presolve time: 0.05s Presolved: 388 rows, 2850 columns, 74293 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 290 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 899.0000000 882.38310 1.85% - 0s 0 0 883.29105 0 101 899.00000 883.29105 1.75% - 1s 0 0 883.29105 0 95 899.00000 883.29105 1.75% - 1s 0 0 883.30251 0 99 899.00000 883.30251 1.75% - 1s 0 0 883.42217 0 103 899.00000 883.42217 1.73% - 1s 0 0 883.44588 0 105 899.00000 883.44588 1.73% - 1s 0 0 883.53631 0 108 899.00000 883.53631 1.72% - 1s 0 0 883.59891 0 109 899.00000 883.59891 1.71% - 1s 0 0 883.66096 0 107 899.00000 883.66096 1.71% - 1s 0 0 883.75480 0 107 899.00000 883.75480 1.70% - 1s 0 0 883.75806 0 109 899.00000 883.75806 1.70% - 1s 0 0 883.78562 0 106 899.00000 883.78562 1.69% - 1s 0 0 883.80430 0 106 899.00000 883.80430 1.69% - 1s 0 0 883.80729 0 107 899.00000 883.80729 1.69% - 1s 0 0 883.81687 0 115 899.00000 883.81687 1.69% - 1s 0 0 883.82028 0 111 899.00000 883.82028 1.69% - 1s 0 0 883.82126 0 114 899.00000 883.82126 1.69% - 1s 0 2 883.82565 0 114 899.00000 883.82565 1.69% - 2s * 547 422 25 898.0000000 884.80175 1.47% 19.0 2s * 551 378 26 897.0000000 884.80175 1.36% 18.9 2s 713 478 888.79192 8 107 897.00000 885.11108 1.33% 18.9 5s H 1259 609 895.0000000 885.55378 1.06% 22.0 6s 2746 1229 893.47619 34 77 895.00000 887.31836 0.86% 20.9 10s * 4383 1937 28 894.0000000 887.95907 0.68% 20.2 13s 4501 1989 890.40284 20 101 894.00000 888.01158 0.67% 20.2 15s 6043 2403 889.66138 34 84 894.00000 888.01158 0.67% 20.8 20s * 8318 2435 42 893.0000000 888.01158 0.56% 20.4 24s 8496 2412 890.38835 29 98 893.00000 888.01158 0.56% 20.4 25s 11130 2412 891.31274 33 88 893.00000 888.66667 0.49% 20.1 30s 14242 2862 890.64723 35 84 893.00000 889.22881 0.42% 19.8 35s 17506 3016 891.90323 35 79 893.00000 889.69072 0.37% 19.4 40s 21026 2944 891.66362 29 83 893.00000 890.09268 0.33% 19.0 45s 24874 2313 cutoff 38 893.00000 890.56890 0.27% 18.6 50s Cutting planes: Gomory: 8 MIR: 2 Zero half: 4 Explored 29970 nodes (526061 simplex iterations) in 54.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 29), (22, 48), (23, 62), (23, 65), (29, 63), (30, 49), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (48, 49), (55, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (17, 34), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 56), (32, 73), (34, 74), (39, 66), (40, 73), (50, 57), (51, 56), (60, 67)] Optimize a model with 390 rows, 2850 columns and 74894 nonzeros Presolve time: 0.05s Presolved: 390 rows, 2850 columns, 74894 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 290 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 896.0000000 882.38310 1.52% - 0s 0 0 883.30251 0 99 896.00000 883.30251 1.42% - 0s 0 0 883.30251 0 95 896.00000 883.30251 1.42% - 0s 0 0 883.30251 0 99 896.00000 883.30251 1.42% - 0s 0 0 883.42217 0 103 896.00000 883.42217 1.40% - 1s 0 0 883.44588 0 105 896.00000 883.44588 1.40% - 1s 0 0 883.53631 0 108 896.00000 883.53631 1.39% - 1s 0 0 883.59891 0 109 896.00000 883.59891 1.38% - 1s 0 0 883.66096 0 107 896.00000 883.66096 1.38% - 1s 0 0 883.75480 0 107 896.00000 883.75480 1.37% - 1s 0 0 883.78562 0 106 896.00000 883.78562 1.36% - 1s 0 0 883.79229 0 109 896.00000 883.79229 1.36% - 1s 0 0 883.79446 0 111 896.00000 883.79446 1.36% - 1s 0 0 883.79625 0 109 896.00000 883.79625 1.36% - 1s 0 0 883.79625 0 110 896.00000 883.79625 1.36% - 1s 0 2 883.80031 0 110 896.00000 883.80031 1.36% - 1s 768 521 890.95349 26 90 896.00000 885.59540 1.16% 21.9 5s * 1017 537 33 894.0000000 886.04302 0.89% 22.1 5s 3212 1356 cutoff 36 894.00000 887.96779 0.67% 19.8 10s 6111 2447 890.48554 30 87 894.00000 888.69650 0.59% 18.9 15s 8946 3351 cutoff 33 894.00000 889.10999 0.55% 18.4 20s 12188 4140 891.08333 27 77 894.00000 889.49412 0.50% 18.1 25s 15195 4692 891.97403 31 78 894.00000 889.75000 0.48% 18.0 30s 18982 5148 cutoff 33 894.00000 890.04274 0.44% 17.8 35s *20126 4309 36 893.0000000 890.12144 0.32% 17.7 36s 23201 3819 cutoff 31 893.00000 890.44767 0.29% 17.4 40s 27844 2369 cutoff 27 893.00000 891.06541 0.22% 16.9 45s Cutting planes: Gomory: 6 MIR: 1 Zero half: 5 Explored 31106 nodes (499568 simplex iterations) in 47.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 54), (12, 60), (60, 67)] Optimize a model with 392 rows, 2850 columns and 75395 nonzeros Presolve time: 0.05s Presolved: 392 rows, 2850 columns, 75395 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 290 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.38310 2.17% - 0s 0 0 883.29105 0 101 902.00000 883.29105 2.07% - 0s 0 0 883.29105 0 95 902.00000 883.29105 2.07% - 1s 0 0 883.30251 0 101 902.00000 883.30251 2.07% - 1s 0 0 883.43408 0 105 902.00000 883.43408 2.06% - 1s 0 0 883.49042 0 107 902.00000 883.49042 2.05% - 1s 0 0 883.56705 0 108 902.00000 883.56705 2.04% - 1s 0 0 883.57491 0 108 902.00000 883.57491 2.04% - 1s 0 0 883.58030 0 114 902.00000 883.58030 2.04% - 1s 0 0 883.58111 0 114 902.00000 883.58111 2.04% - 1s 0 0 883.58577 0 113 902.00000 883.58577 2.04% - 1s 0 0 883.59721 0 112 902.00000 883.59721 2.04% - 1s 0 0 883.62288 0 110 902.00000 883.62288 2.04% - 1s 0 0 883.63569 0 111 902.00000 883.63569 2.04% - 1s 0 0 883.65051 0 109 902.00000 883.65051 2.03% - 1s 0 0 883.67611 0 112 902.00000 883.67611 2.03% - 1s 0 0 883.67714 0 113 902.00000 883.67714 2.03% - 1s 0 0 883.68105 0 115 902.00000 883.68105 2.03% - 2s 0 2 883.68117 0 114 902.00000 883.68117 2.03% - 2s * 513 429 59 901.0000000 884.13157 1.87% 19.2 3s * 567 269 30 895.0000000 884.17981 1.21% 19.5 3s 715 325 884.76628 13 101 895.00000 884.76628 1.14% 19.4 5s * 1864 662 42 894.0000000 886.42637 0.85% 20.6 7s 2943 1157 887.96944 20 81 894.00000 887.11629 0.77% 20.4 10s 5408 2231 891.84211 32 71 894.00000 887.95500 0.68% 20.0 15s * 7878 2776 36 893.0000000 888.42866 0.51% 19.6 19s 7995 2808 cutoff 34 893.00000 888.44587 0.51% 19.5 20s 10878 3325 cutoff 26 893.00000 888.89441 0.46% 19.2 25s 14182 3651 891.74618 26 80 893.00000 889.30882 0.41% 18.7 30s 17782 3833 cutoff 30 893.00000 889.65423 0.37% 18.2 35s 21046 3703 891.17822 26 73 893.00000 889.97312 0.34% 17.9 40s 26031 3096 891.58200 23 92 893.00000 890.39604 0.29% 17.3 45s 31435 1336 891.48118 27 84 893.00000 891.13379 0.21% 16.6 50s Cutting planes: Gomory: 7 MIR: 1 Zero half: 4 Explored 33311 nodes (537291 simplex iterations) in 51.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 44), (24, 57), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (34, 64), (11, 32), (11, 73), (17, 64), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(9, 36), (14, 53), (14, 55), (15, 36), (15, 60), (20, 55), (20, 60)] adding cut for [(66, 67), (39, 66), (39, 59), (8, 54), (12, 67), (12, 54)] Optimize a model with 396 rows, 2850 columns and 75835 nonzeros Presolve time: 0.05s Presolved: 396 rows, 2850 columns, 75835 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 295 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 902.0000000 882.38310 2.17% - 0s 0 0 883.29105 0 103 902.00000 883.29105 2.07% - 0s 0 0 883.29105 0 95 902.00000 883.29105 2.07% - 1s 0 0 883.30251 0 99 902.00000 883.30251 2.07% - 1s 0 0 883.42217 0 102 902.00000 883.42217 2.06% - 1s 0 0 883.44588 0 106 902.00000 883.44588 2.06% - 1s 0 0 883.48948 0 105 902.00000 883.48948 2.05% - 1s 0 0 883.53975 0 106 902.00000 883.53975 2.05% - 1s 0 0 883.59173 0 106 902.00000 883.59173 2.04% - 1s 0 0 883.62167 0 108 902.00000 883.62167 2.04% - 1s 0 0 883.63447 0 109 902.00000 883.63447 2.04% - 1s 0 0 883.65663 0 112 902.00000 883.65663 2.03% - 1s 0 0 883.71574 0 106 902.00000 883.71574 2.03% - 1s 0 0 883.77367 0 107 902.00000 883.77367 2.02% - 1s 0 0 883.77933 0 108 902.00000 883.77933 2.02% - 1s 0 0 883.78195 0 110 902.00000 883.78195 2.02% - 1s 0 0 883.78520 0 110 902.00000 883.78520 2.02% - 1s 0 0 883.78520 0 110 902.00000 883.78520 2.02% - 1s 0 2 883.78537 0 110 902.00000 883.78537 2.02% - 2s * 203 144 42 898.0000000 883.95307 1.56% 19.1 2s * 502 356 38 897.0000000 884.37937 1.41% 19.1 2s 615 396 893.97959 63 106 897.00000 884.88822 1.35% 18.3 5s H 1399 603 896.0000000 886.88795 1.02% 21.1 7s * 1507 558 42 895.0000000 887.04990 0.89% 20.9 7s 2606 1105 892.25143 24 75 895.00000 887.69225 0.82% 20.0 10s * 4492 1825 39 894.0000000 888.28979 0.64% 19.7 13s 4601 1863 891.79809 27 103 894.00000 888.32609 0.63% 19.7 15s 6044 2200 890.55556 33 75 894.00000 888.32609 0.63% 20.0 20s 8832 2327 891.90909 37 72 894.00000 888.82925 0.58% 19.5 25s 11857 2765 cutoff 38 894.00000 889.39651 0.51% 19.0 30s *13572 2635 38 893.0000000 889.62985 0.38% 18.8 32s 15192 2617 890.83216 33 76 893.00000 889.94288 0.34% 18.6 35s 18940 2051 891.61111 35 74 893.00000 890.62500 0.27% 18.1 40s Cutting planes: Gomory: 8 MIR: 1 Zero half: 8 Explored 22569 nodes (389211 simplex iterations) in 44.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (4, 45), (10, 33), (10, 40), (11, 66), (11, 73), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 66), (33, 45), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (55, 58), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(34, 64), (34, 74), (17, 64), (22, 75), (22, 29), (23, 62), (23, 63), (29, 62), (63, 74)] adding cut for [(39, 59), (8, 54), (12, 67), (12, 39), (15, 54), (15, 60), (60, 67)] Optimize a model with 400 rows, 2850 columns and 76292 nonzeros Presolve time: 0.05s Presolved: 400 rows, 2850 columns, 76292 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 283 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 900.0000000 882.38310 1.96% - 0s 0 0 883.29105 0 101 900.00000 883.29105 1.86% - 0s 0 0 883.29105 0 95 900.00000 883.29105 1.86% - 1s 0 0 883.30251 0 100 900.00000 883.30251 1.86% - 1s 0 0 883.44831 0 105 900.00000 883.44831 1.84% - 1s 0 0 883.47580 0 106 900.00000 883.47580 1.84% - 1s 0 0 883.51776 0 108 900.00000 883.51776 1.83% - 1s 0 0 883.54346 0 109 900.00000 883.54346 1.83% - 1s 0 0 883.57017 0 108 900.00000 883.57017 1.83% - 1s 0 0 883.59085 0 108 900.00000 883.59085 1.82% - 1s 0 0 883.61074 0 107 900.00000 883.61074 1.82% - 1s 0 0 883.62846 0 108 900.00000 883.62846 1.82% - 1s 0 0 883.66113 0 111 900.00000 883.66113 1.82% - 1s 0 0 883.67302 0 113 900.00000 883.67302 1.81% - 1s 0 0 883.69351 0 112 900.00000 883.69351 1.81% - 1s 0 0 883.69676 0 112 900.00000 883.69676 1.81% - 1s 0 0 883.69952 0 112 900.00000 883.69952 1.81% - 1s 0 0 883.69952 0 112 900.00000 883.69952 1.81% - 1s 0 2 883.70190 0 112 900.00000 883.70190 1.81% - 2s * 306 229 37 897.0000000 884.34284 1.41% 21.6 2s 651 447 894.36264 34 77 897.00000 884.75589 1.37% 20.8 5s * 1321 658 50 896.0000000 886.03120 1.11% 21.9 6s * 2539 1191 41 895.0000000 886.97380 0.90% 20.8 9s 2813 1351 890.46954 29 83 895.00000 887.10023 0.88% 20.6 10s * 3037 1238 42 894.0000000 887.25358 0.75% 20.5 10s 4358 1651 891.24832 51 74 894.00000 887.34800 0.74% 20.9 15s 7129 2071 889.47475 37 81 894.00000 887.88551 0.68% 20.0 20s 9942 3163 cutoff 40 894.00000 888.57656 0.61% 19.5 25s 13154 4191 cutoff 37 894.00000 889.10938 0.55% 19.0 30s 16662 5190 892.41667 43 57 894.00000 889.50195 0.50% 18.7 35s 20539 6062 892.64441 45 72 894.00000 889.79167 0.47% 18.3 40s 25320 6691 cutoff 41 894.00000 890.11111 0.43% 17.8 45s 29892 7230 891.36667 49 71 894.00000 890.39331 0.40% 17.3 50s 34716 7496 891.80690 41 71 894.00000 890.62069 0.38% 17.0 55s *37323 5540 42 893.0000000 890.74181 0.25% 16.9 58s 38119 5271 cutoff 46 893.00000 890.83333 0.24% 16.8 60s 43066 2706 cutoff 47 893.00000 891.42857 0.18% 16.3 65s Cutting planes: Gomory: 7 MIR: 1 Zero half: 6 Explored 46078 nodes (719441 simplex iterations) in 66.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 38), (8, 36), (15, 36), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (32, 66), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 74), (2, 34), (49, 75), (31, 49), (29, 75), (29, 63), (63, 74)] Optimize a model with 402 rows, 2850 columns and 76950 nonzeros Presolve time: 0.05s Presolved: 402 rows, 2850 columns, 76950 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 283 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 907.0000000 882.38310 2.71% - 0s H 0 0 903.0000000 882.38310 2.28% - 0s 0 0 883.29105 0 102 903.00000 883.29105 2.18% - 0s 0 0 883.29105 0 95 903.00000 883.29105 2.18% - 1s 0 0 883.30251 0 101 903.00000 883.30251 2.18% - 1s 0 0 883.43408 0 105 903.00000 883.43408 2.17% - 1s 0 0 883.49042 0 107 903.00000 883.49042 2.16% - 1s 0 0 883.55656 0 109 903.00000 883.55656 2.15% - 1s 0 0 883.56719 0 107 903.00000 883.56719 2.15% - 1s 0 0 883.62612 0 104 903.00000 883.62612 2.15% - 1s 0 0 883.64470 0 105 903.00000 883.64470 2.14% - 1s 0 0 883.64470 0 107 903.00000 883.64470 2.14% - 1s 0 0 883.65166 0 107 903.00000 883.65166 2.14% - 1s 0 0 883.65524 0 110 903.00000 883.65524 2.14% - 1s 0 0 883.65628 0 113 903.00000 883.65628 2.14% - 1s 0 0 883.65628 0 113 903.00000 883.65628 2.14% - 1s 0 2 883.65857 0 113 903.00000 883.65857 2.14% - 2s * 92 88 61 900.0000000 884.07139 1.77% 23.5 2s * 447 353 65 899.0000000 884.82571 1.58% 18.7 2s 681 518 894.38718 47 82 899.00000 885.09188 1.55% 20.1 5s * 1311 581 45 895.0000000 885.48820 1.06% 21.8 6s * 1683 665 72 894.0000000 885.73906 0.92% 22.4 8s 2164 791 887.98734 35 93 894.00000 886.38994 0.85% 22.2 10s 4580 1589 891.28646 42 78 894.00000 888.18087 0.65% 20.7 15s 7222 2538 892.48837 43 66 894.00000 888.80903 0.58% 19.9 20s H 7493 2280 893.0000000 888.85593 0.46% 19.8 20s 10174 2639 cutoff 44 893.00000 889.36424 0.41% 19.2 25s 13627 2754 cutoff 44 893.00000 889.90283 0.35% 18.6 30s 17061 2413 890.81757 39 86 893.00000 890.38692 0.29% 18.2 35s 21199 1278 891.99714 40 86 893.00000 891.07778 0.22% 17.5 40s Cutting planes: Gomory: 9 MIR: 1 Zero half: 4 Mod-K: 1 Explored 23147 nodes (389508 simplex iterations) in 41.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 16), (42, 44), (42, 57), (43, 65), (43, 44), (29, 62), (16, 58), (21, 38), (21, 71), (23, 65), (23, 29), (24, 64), (24, 57), (28, 58), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 56), (2, 74), (2, 34), (3, 63), (66, 67), (11, 32), (11, 66), (12, 39), (12, 67), (17, 34), (17, 50), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (63, 74)] adding cut for [(36, 54), (8, 36), (14, 53), (14, 55), (15, 54), (15, 60), (20, 55), (20, 60)] Optimize a model with 405 rows, 2850 columns and 77349 nonzeros Presolve time: 0.05s Presolved: 405 rows, 2850 columns, 77349 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 252 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 905.0000000 882.38310 2.50% - 0s H 0 0 903.0000000 882.38310 2.28% - 0s 0 0 883.29105 0 101 903.00000 883.29105 2.18% - 1s 0 0 883.29105 0 95 903.00000 883.29105 2.18% - 1s 0 0 883.30251 0 100 903.00000 883.30251 2.18% - 1s 0 0 883.44831 0 105 903.00000 883.44831 2.17% - 1s 0 0 883.47580 0 106 903.00000 883.47580 2.16% - 1s 0 0 883.51776 0 108 903.00000 883.51776 2.16% - 1s 0 0 883.54346 0 109 903.00000 883.54346 2.15% - 1s 0 0 883.56578 0 105 903.00000 883.56578 2.15% - 1s 0 0 883.59118 0 107 903.00000 883.59118 2.15% - 1s 0 0 883.61659 0 108 903.00000 883.61659 2.15% - 1s 0 0 883.62571 0 109 903.00000 883.62571 2.15% - 1s 0 0 883.63795 0 105 903.00000 883.63795 2.14% - 1s 0 0 883.66206 0 111 903.00000 883.66206 2.14% - 1s 0 0 883.66464 0 113 903.00000 883.66464 2.14% - 2s 0 0 883.66672 0 115 903.00000 883.66672 2.14% - 2s 0 0 883.66672 0 115 903.00000 883.66672 2.14% - 2s 0 2 883.67407 0 114 903.00000 883.67407 2.14% - 2s * 118 110 77 902.0000000 883.69164 2.03% 20.5 2s * 349 225 41 898.0000000 884.17932 1.54% 20.0 2s * 353 204 44 897.0000000 884.17932 1.43% 19.8 2s * 466 257 21 895.0000000 884.27526 1.20% 22.0 3s 665 369 893.22101 40 77 895.00000 884.94695 1.12% 22.8 5s * 1398 508 41 894.0000000 886.32371 0.86% 22.2 6s 3045 1226 892.93333 31 74 894.00000 887.40576 0.74% 20.4 10s 5851 2357 cutoff 28 894.00000 888.35546 0.63% 19.2 15s 8817 3310 889.56327 24 85 894.00000 888.91611 0.57% 18.7 20s 11976 4034 891.61947 28 86 894.00000 889.29439 0.53% 18.4 25s 15332 4739 892.68870 27 82 894.00000 889.59884 0.49% 18.2 30s *16150 4126 29 893.0000000 889.66870 0.37% 18.1 31s 18726 3956 890.86732 27 85 893.00000 889.97584 0.34% 17.9 35s 23074 3340 cutoff 27 893.00000 890.47442 0.28% 17.3 40s 28515 1388 891.71067 27 80 893.00000 891.30647 0.19% 16.6 45s Cutting planes: Gomory: 4 MIR: 1 Zero half: 9 Explored 30247 nodes (484986 simplex iterations) in 46.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 74), (12, 39), (12, 54), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 44), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (32, 73), (34, 64), (37, 70), (37, 72), (39, 59), (42, 43), (42, 57), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (9, 36), (11, 66), (15, 36), (15, 60), (60, 67)] Optimize a model with 407 rows, 2850 columns and 78150 nonzeros Presolve time: 0.05s Presolved: 407 rows, 2850 columns, 78150 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 277 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 900.0000000 882.38310 1.96% - 0s 0 0 883.29105 0 101 900.00000 883.29105 1.86% - 1s 0 0 883.29105 0 95 900.00000 883.29105 1.86% - 1s 0 0 883.30251 0 100 900.00000 883.30251 1.86% - 1s 0 0 883.44831 0 105 900.00000 883.44831 1.84% - 1s 0 0 883.47580 0 106 900.00000 883.47580 1.84% - 1s 0 0 883.51776 0 108 900.00000 883.51776 1.83% - 1s 0 0 883.54346 0 109 900.00000 883.54346 1.83% - 1s 0 0 883.57017 0 108 900.00000 883.57017 1.83% - 1s 0 0 883.59085 0 108 900.00000 883.59085 1.82% - 1s 0 0 883.61074 0 107 900.00000 883.61074 1.82% - 1s 0 0 883.62846 0 108 900.00000 883.62846 1.82% - 1s 0 0 883.66113 0 111 900.00000 883.66113 1.82% - 1s 0 0 883.67302 0 113 900.00000 883.67302 1.81% - 1s 0 0 883.69351 0 112 900.00000 883.69351 1.81% - 1s 0 0 883.69676 0 112 900.00000 883.69676 1.81% - 1s 0 0 883.69952 0 112 900.00000 883.69952 1.81% - 1s 0 0 883.69952 0 112 900.00000 883.69952 1.81% - 2s 0 2 883.70190 0 112 900.00000 883.70190 1.81% - 2s * 414 223 36 895.0000000 884.41888 1.18% 19.5 2s 747 407 890.93675 35 82 895.00000 884.87484 1.13% 21.5 5s * 2202 966 40 894.0000000 886.42377 0.85% 20.1 8s 3220 1531 891.31028 35 70 894.00000 887.06310 0.78% 19.8 10s 5794 2725 889.88633 27 85 894.00000 887.71138 0.70% 19.4 15s 8407 3752 892.14534 38 78 894.00000 888.20285 0.65% 19.3 20s 11412 4810 cutoff 35 894.00000 888.57313 0.61% 19.2 25s 14569 5677 891.18740 32 79 894.00000 888.91667 0.57% 19.1 30s 17665 6532 892.76331 30 77 894.00000 889.17500 0.54% 18.9 35s 21826 7400 890.28611 25 95 894.00000 889.44303 0.51% 18.6 40s 26219 8081 891.96040 27 76 894.00000 889.66387 0.49% 18.2 45s 30264 8626 891.72071 28 81 894.00000 889.85070 0.46% 18.0 50s 34390 8995 892.58998 31 85 894.00000 890.02519 0.44% 17.8 55s 38296 9247 cutoff 31 894.00000 890.16589 0.43% 17.7 60s 40904 9381 892.73674 29 81 894.00000 890.26336 0.42% 17.6 70s 45231 9472 892.50877 38 71 894.00000 890.41373 0.40% 17.4 75s 49163 9419 892.24017 36 77 894.00000 890.54560 0.39% 17.4 80s *51956 7187 33 893.0000000 890.64115 0.26% 17.3 83s 52214 7118 891.35925 28 77 893.00000 890.66387 0.26% 17.3 85s 56612 5425 891.35833 30 77 893.00000 891.00915 0.22% 17.1 90s 62362 1417 cutoff 44 893.00000 891.71656 0.14% 16.5 95s Cutting planes: Gomory: 3 MIR: 1 Zero half: 8 Explored 63828 nodes (1033712 simplex iterations) in 95.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.930000000000e+02, best bound 8.930000000000e+02, gap 0.0% adding cut for [(4, 45), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (22, 70), (22, 75), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (31, 75), (32, 40), (32, 56), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (62, 70)] adding cut for [(48, 49), (6, 38), (6, 16), (14, 58), (14, 28), (16, 58), (37, 48), (37, 72), (21, 38), (21, 71), (28, 53), (61, 71), (61, 72), (30, 49)] adding cut for [(66, 67), (39, 66), (9, 55), (11, 39), (11, 73), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 410 rows, 2850 columns and 78651 nonzeros Presolve time: 0.05s Presolved: 410 rows, 2850 columns, 78651 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 277 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 901.0000000 882.38310 2.07% - 0s 0 0 883.29105 0 101 901.00000 883.29105 1.97% - 1s 0 0 883.29105 0 95 901.00000 883.29105 1.97% - 1s 0 0 883.30251 0 99 901.00000 883.30251 1.96% - 1s 0 0 883.42217 0 103 901.00000 883.42217 1.95% - 1s 0 0 883.44588 0 105 901.00000 883.44588 1.95% - 1s 0 0 883.53631 0 107 901.00000 883.53631 1.94% - 1s 0 0 883.59891 0 109 901.00000 883.59891 1.93% - 1s 0 0 883.66096 0 107 901.00000 883.66096 1.92% - 1s 0 0 883.75480 0 107 901.00000 883.75480 1.91% - 1s 0 0 883.78562 0 106 901.00000 883.78562 1.91% - 1s 0 0 883.79229 0 109 901.00000 883.79229 1.91% - 1s 0 0 883.79446 0 111 901.00000 883.79446 1.91% - 1s 0 0 883.79625 0 109 901.00000 883.79625 1.91% - 1s 0 0 883.79625 0 110 901.00000 883.79625 1.91% - 2s 0 2 883.80031 0 110 901.00000 883.80031 1.91% - 2s 611 491 899.85870 40 111 901.00000 884.59211 1.82% 19.1 5s * 840 510 31 894.0000000 885.49703 0.95% 22.0 6s 1530 738 887.62849 29 93 894.00000 886.29932 0.86% 22.8 10s 4126 1494 889.80576 30 78 894.00000 888.34484 0.63% 20.1 15s 6819 2406 890.85142 32 90 894.00000 888.98991 0.56% 19.3 20s 9615 3203 890.23077 34 88 894.00000 889.36234 0.52% 18.8 25s 13001 4005 cutoff 34 894.00000 889.73333 0.48% 18.4 30s 15930 4534 891.58596 38 85 894.00000 889.99338 0.45% 18.1 35s 19720 5003 892.93162 36 84 894.00000 890.30588 0.41% 17.7 40s 24381 5333 892.43157 39 78 894.00000 890.56794 0.38% 17.2 45s 29267 5351 892.21614 33 82 894.00000 890.84172 0.35% 16.8 50s 33716 5203 891.79477 30 83 894.00000 891.06771 0.33% 16.5 55s 38130 4655 892.86813 33 91 894.00000 891.28882 0.30% 16.2 60s 43194 3597 cutoff 33 894.00000 891.61364 0.27% 15.9 65s 47441 1943 cutoff 36 894.00000 892.01961 0.22% 15.6 70s Cutting planes: Gomory: 9 MIR: 1 Zero half: 7 Explored 50450 nodes (769684 simplex iterations) in 72.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (10, 26), (10, 40), (14, 55), (14, 58), (16, 38), (16, 58), (19, 25), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (36, 54), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (39, 66), (9, 15), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (59, 73), (60, 67)] Optimize a model with 412 rows, 2850 columns and 79234 nonzeros Presolve time: 0.05s Presolved: 412 rows, 2850 columns, 79234 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 897.0000000 882.38310 1.63% - 0s 0 0 883.29105 0 101 897.00000 883.29105 1.53% - 1s 0 0 883.29105 0 95 897.00000 883.29105 1.53% - 1s 0 0 883.30251 0 100 897.00000 883.30251 1.53% - 1s 0 0 883.44831 0 105 897.00000 883.44831 1.51% - 1s 0 0 883.47580 0 106 897.00000 883.47580 1.51% - 1s 0 0 883.51776 0 108 897.00000 883.51776 1.50% - 1s 0 0 883.54404 0 109 897.00000 883.54404 1.50% - 1s 0 0 883.58986 0 109 897.00000 883.58986 1.49% - 1s 0 0 883.61265 0 111 897.00000 883.61265 1.49% - 1s 0 0 883.64291 0 111 897.00000 883.64291 1.49% - 1s 0 0 883.68914 0 109 897.00000 883.68914 1.48% - 1s 0 0 883.69245 0 113 897.00000 883.69245 1.48% - 1s 0 0 883.69565 0 114 897.00000 883.69565 1.48% - 1s 0 0 883.69565 0 114 897.00000 883.69565 1.48% - 1s 0 2 883.69572 0 114 897.00000 883.69572 1.48% - 1s 621 481 885.35322 16 95 897.00000 885.31259 1.30% 20.9 5s 2767 1519 cutoff 45 897.00000 887.35384 1.08% 20.1 10s * 3154 1164 33 894.0000000 887.50021 0.73% 20.0 10s 4467 1499 891.50000 43 78 894.00000 887.55975 0.72% 20.4 15s 7124 1864 891.03049 53 79 894.00000 888.31452 0.64% 19.7 20s 9948 2784 890.35209 37 88 894.00000 888.92877 0.57% 19.2 25s 12960 3534 892.11335 38 86 894.00000 889.35234 0.52% 19.0 30s 16202 4131 890.15884 34 87 894.00000 889.70091 0.48% 18.8 35s 20075 4618 890.77045 44 84 894.00000 890.03390 0.44% 18.5 40s 23936 4853 892.58974 45 65 894.00000 890.32209 0.41% 18.2 45s 28627 4914 891.84188 42 77 894.00000 890.63187 0.38% 17.8 50s 32576 4749 cutoff 42 894.00000 890.87261 0.35% 17.5 55s 37659 4170 891.54645 40 88 894.00000 891.20077 0.31% 17.2 60s 42897 2945 892.41026 43 66 894.00000 891.61011 0.27% 16.8 65s 47545 795 cutoff 50 894.00000 892.33333 0.19% 16.4 70s Cutting planes: Gomory: 5 MIR: 1 Zero half: 7 Explored 48529 nodes (787096 simplex iterations) in 71.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 23), (10, 26), (10, 33), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (19, 25), (19, 51), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (32, 56), (33, 45), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (60, 67)] adding cut for [(34, 64), (34, 74), (4, 17), (37, 70), (37, 72), (61, 71), (61, 72), (16, 58), (17, 64), (21, 71), (21, 38), (6, 16), (6, 38), (28, 58), (29, 62), (29, 63), (62, 70), (63, 74)] Optimize a model with 414 rows, 2850 columns and 79756 nonzeros Presolve time: 0.05s Presolved: 414 rows, 2850 columns, 79756 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 896.0000000 882.38310 1.52% - 0s 0 0 883.30251 0 100 896.00000 883.30251 1.42% - 1s 0 0 883.30251 0 95 896.00000 883.30251 1.42% - 1s 0 0 883.30251 0 99 896.00000 883.30251 1.42% - 1s 0 0 883.42217 0 103 896.00000 883.42217 1.40% - 1s 0 0 883.44588 0 105 896.00000 883.44588 1.40% - 1s 0 0 883.53631 0 108 896.00000 883.53631 1.39% - 1s 0 0 883.59891 0 109 896.00000 883.59891 1.38% - 1s 0 0 883.66096 0 107 896.00000 883.66096 1.38% - 1s 0 0 883.69371 0 108 896.00000 883.69371 1.37% - 1s 0 0 883.72565 0 107 896.00000 883.72565 1.37% - 1s 0 0 883.73827 0 110 896.00000 883.73827 1.37% - 1s 0 0 883.74101 0 113 896.00000 883.74101 1.37% - 1s 0 0 883.76394 0 111 896.00000 883.76394 1.37% - 1s 0 0 883.78084 0 111 896.00000 883.78084 1.36% - 1s 0 0 883.78555 0 112 896.00000 883.78555 1.36% - 1s 0 2 883.78581 0 112 896.00000 883.78581 1.36% - 1s 649 473 888.64535 27 84 896.00000 884.92515 1.24% 19.8 5s * 1795 784 39 895.0000000 886.34459 0.97% 20.0 7s H 2057 815 894.0000000 886.58970 0.83% 19.7 8s 2978 1276 889.64177 22 84 894.00000 887.32256 0.75% 19.3 10s 5513 2390 892.84751 32 80 894.00000 888.25000 0.64% 18.6 15s 8440 3457 892.82593 37 67 894.00000 888.80228 0.58% 18.0 20s 11267 4348 892.87021 31 69 894.00000 889.15032 0.54% 17.7 25s 14608 5197 890.48237 31 90 894.00000 889.49843 0.50% 17.4 30s 18049 5920 892.31787 21 78 894.00000 889.75107 0.48% 17.2 35s 22720 6582 892.17219 33 84 894.00000 890.02058 0.45% 16.7 40s 27354 7177 890.91712 29 77 894.00000 890.25186 0.42% 16.4 45s 31622 7601 891.27149 27 78 894.00000 890.44167 0.40% 16.1 50s 35974 7856 892.96256 30 76 894.00000 890.62476 0.38% 15.9 55s 40905 7901 cutoff 38 894.00000 890.81572 0.36% 15.7 67s 43125 7849 892.63498 30 80 894.00000 890.90845 0.35% 15.6 70s 48008 7555 892.17123 22 77 894.00000 891.08744 0.33% 15.4 75s 52369 7081 892.61039 23 89 894.00000 891.25328 0.31% 15.3 80s 56645 6388 892.18874 23 91 894.00000 891.41399 0.29% 15.1 85s 61723 5322 cutoff 23 894.00000 891.62130 0.27% 15.0 90s 67021 3520 cutoff 27 894.00000 891.93750 0.23% 14.8 95s Cutting planes: Gomory: 5 MIR: 2 Zero half: 7 Explored 72678 nodes (1042315 simplex iterations) in 99.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(19, 56), (19, 25), (33, 51), (10, 33), (10, 40), (43, 65), (43, 44), (29, 62), (24, 50), (24, 57), (22, 75), (22, 62), (25, 50), (26, 51), (26, 56), (42, 44), (42, 57), (23, 65), (23, 29)] adding cut for [(48, 49), (6, 38), (6, 16), (16, 58), (8, 54), (20, 54), (20, 55), (21, 38), (21, 71), (55, 58), (70, 72), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (12, 67), (12, 60), (15, 36), (15, 60), (59, 73)] Optimize a model with 417 rows, 2850 columns and 80154 nonzeros Presolve time: 0.05s Presolved: 417 rows, 2850 columns, 80154 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 897.0000000 882.38310 1.63% - 0s 0 0 883.29105 0 102 897.00000 883.29105 1.53% - 1s 0 0 883.29105 0 95 897.00000 883.29105 1.53% - 1s 0 0 883.30251 0 100 897.00000 883.30251 1.53% - 1s 0 0 883.44831 0 105 897.00000 883.44831 1.51% - 1s 0 0 883.47580 0 106 897.00000 883.47580 1.51% - 1s 0 0 883.51776 0 108 897.00000 883.51776 1.50% - 1s 0 0 883.54404 0 109 897.00000 883.54404 1.50% - 1s 0 0 883.58986 0 109 897.00000 883.58986 1.49% - 1s 0 0 883.61265 0 111 897.00000 883.61265 1.49% - 1s 0 0 883.64291 0 111 897.00000 883.64291 1.49% - 1s 0 0 883.68914 0 109 897.00000 883.68914 1.48% - 1s 0 0 883.69245 0 113 897.00000 883.69245 1.48% - 1s 0 0 883.69565 0 114 897.00000 883.69565 1.48% - 1s 0 0 883.69565 0 114 897.00000 883.69565 1.48% - 1s 0 2 883.69572 0 114 897.00000 883.69572 1.48% - 1s * 408 305 24 896.0000000 884.79005 1.25% 22.0 3s 612 436 893.00368 28 106 896.00000 885.17659 1.21% 20.3 5s H 1054 561 895.0000000 885.51677 1.06% 22.7 6s * 2247 926 35 894.0000000 887.16058 0.77% 21.5 9s 2555 1062 887.71403 16 90 894.00000 887.28920 0.75% 21.3 10s 4929 2079 888.96285 21 88 894.00000 888.24691 0.64% 20.1 15s 7272 2841 889.26946 20 73 894.00000 888.77702 0.58% 19.8 20s 9951 3586 892.15152 26 72 894.00000 889.20370 0.54% 19.4 25s 12853 4138 890.66879 26 83 894.00000 889.54419 0.50% 19.3 30s 16207 4656 891.20608 25 85 894.00000 889.84541 0.46% 18.9 35s 20006 5101 892.59958 31 80 894.00000 890.13899 0.43% 18.5 40s 23898 5266 892.02955 28 79 894.00000 890.41566 0.40% 18.2 45s 28309 5259 cutoff 33 894.00000 890.68643 0.37% 17.8 50s 31500 5077 cutoff 36 894.00000 890.88793 0.35% 17.6 60s 35772 4644 892.07468 27 99 894.00000 891.15455 0.32% 17.4 65s 39923 3895 cutoff 24 894.00000 891.44991 0.29% 17.1 70s 44658 2458 892.52827 26 77 894.00000 891.86219 0.24% 16.7 75s Cutting planes: Gomory: 6 MIR: 1 Zero half: 6 Explored 48848 nodes (791422 simplex iterations) in 79.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 73), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (30, 58), (32, 56), (32, 67), (33, 45), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(8, 54), (12, 59), (12, 60), (15, 54), (15, 60)] Optimize a model with 419 rows, 2850 columns and 81030 nonzeros Presolve time: 0.05s Presolved: 419 rows, 2850 columns, 81030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 907.0000000 882.38310 2.71% - 0s 0 0 883.39303 0 101 907.00000 883.39303 2.60% - 0s 0 0 883.39303 0 95 907.00000 883.39303 2.60% - 1s 0 0 883.39303 0 101 907.00000 883.39303 2.60% - 1s 0 0 883.50104 0 104 907.00000 883.50104 2.59% - 1s 0 0 883.53240 0 104 907.00000 883.53240 2.59% - 1s 0 0 883.56586 0 106 907.00000 883.56586 2.58% - 1s 0 0 883.57696 0 107 907.00000 883.57696 2.58% - 1s 0 0 883.58424 0 105 907.00000 883.58424 2.58% - 1s 0 0 883.58564 0 107 907.00000 883.58564 2.58% - 1s H 0 0 904.0000000 883.58564 2.26% - 1s 0 0 883.58777 0 110 904.00000 883.58777 2.26% - 1s 0 0 883.58777 0 110 904.00000 883.58777 2.26% - 1s 0 2 883.59132 0 110 904.00000 883.59132 2.26% - 2s * 87 83 53 899.0000000 884.09784 1.66% 24.2 2s 613 470 894.20000 48 108 899.00000 885.22258 1.53% 19.8 5s * 2100 1033 37 898.0000000 886.51392 1.28% 21.8 9s 2449 1278 893.76110 33 81 898.00000 886.83007 1.24% 21.7 10s * 3504 1835 37 897.0000000 887.41757 1.07% 21.2 12s H 3860 1274 894.0000000 887.62903 0.71% 21.2 13s 4019 1345 887.65901 24 99 894.00000 887.65901 0.71% 21.3 15s 6402 1856 892.64286 41 76 894.00000 887.65901 0.71% 20.6 20s 9200 2491 891.34752 31 76 894.00000 888.11813 0.66% 19.9 25s 11900 3394 890.04116 30 92 894.00000 888.56474 0.61% 19.6 30s 15205 4324 cutoff 37 894.00000 888.91930 0.57% 19.3 35s 18641 5195 890.54654 33 89 894.00000 889.17254 0.54% 19.0 40s 22282 5925 892.99252 36 87 894.00000 889.45417 0.51% 18.8 45s 26932 6519 890.79487 31 77 894.00000 889.74477 0.48% 18.3 50s 31366 6948 891.63158 35 82 894.00000 889.97264 0.45% 17.9 55s 35425 7258 892.38662 32 91 894.00000 890.16982 0.43% 17.7 60s 40213 7460 892.00000 34 77 894.00000 890.36332 0.41% 17.4 65s 40807 7476 cutoff 34 894.00000 890.38889 0.40% 17.4 73s 42634 7478 cutoff 33 894.00000 890.47034 0.39% 17.3 75s 46264 7457 cutoff 37 894.00000 890.62213 0.38% 17.1 80s 51457 7206 891.69084 36 77 894.00000 890.81633 0.36% 16.9 85s 56523 6829 892.82609 31 77 894.00000 891.00000 0.34% 16.6 90s 61228 6217 cutoff 34 894.00000 891.20000 0.31% 16.4 95s 66116 5228 891.86327 33 84 894.00000 891.42287 0.29% 16.3 100s 71320 3802 cutoff 36 894.00000 891.71622 0.26% 16.0 105s 76061 1617 cutoff 36 894.00000 892.20126 0.20% 15.7 110s Cutting planes: Gomory: 8 MIR: 1 Zero half: 2 Explored 78256 nodes (1214672 simplex iterations) in 111.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 44), (24, 57), (28, 53), (29, 62), (29, 63), (34, 74), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (39, 66), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (59, 73), (60, 67)] adding cut for [(19, 51), (19, 25), (10, 40), (10, 26), (17, 64), (17, 50), (51, 56), (25, 50), (26, 56)] Optimize a model with 422 rows, 2850 columns and 81536 nonzeros Presolve time: 0.05s Presolved: 422 rows, 2850 columns, 81536 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.823831e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.38310 0 95 2906.00000 882.38310 69.6% - 0s Another try with MIP start H 0 0 908.0000000 882.38310 2.82% - 0s H 0 0 907.0000000 882.38310 2.71% - 0s 0 0 883.39303 0 101 907.00000 883.39303 2.60% - 0s 0 0 883.39303 0 95 907.00000 883.39303 2.60% - 1s 0 0 883.39303 0 101 907.00000 883.39303 2.60% - 1s 0 0 883.50104 0 104 907.00000 883.50104 2.59% - 1s 0 0 883.53240 0 104 907.00000 883.53240 2.59% - 1s 0 0 883.56586 0 106 907.00000 883.56586 2.58% - 1s 0 0 883.57696 0 107 907.00000 883.57696 2.58% - 1s 0 0 883.58424 0 105 907.00000 883.58424 2.58% - 1s 0 0 883.58564 0 107 907.00000 883.58564 2.58% - 1s 0 0 883.58777 0 110 907.00000 883.58777 2.58% - 1s 0 2 883.59132 0 110 907.00000 883.59132 2.58% - 2s H 11 11 905.0000000 884.08128 2.31% 33.2 2s * 405 260 48 899.0000000 884.69333 1.59% 18.2 2s 611 373 893.42424 19 106 899.00000 885.07846 1.55% 18.1 5s * 875 480 51 898.0000000 885.07846 1.44% 20.9 6s * 878 445 52 897.0000000 885.07846 1.33% 20.9 6s H 1463 611 896.0000000 886.31346 1.08% 21.4 7s * 2151 864 45 895.0000000 887.01282 0.89% 20.9 9s 2303 935 893.41772 29 95 895.00000 887.13669 0.88% 20.7 10s H 3376 1082 894.0000000 887.13669 0.77% 21.2 13s 4250 1223 890.79372 30 82 894.00000 887.73751 0.70% 20.7 15s 6837 1908 cutoff 37 894.00000 888.51773 0.61% 19.9 20s 9701 2633 891.97992 31 85 894.00000 889.10124 0.55% 19.5 25s 12964 3327 891.82759 33 72 894.00000 889.50568 0.50% 18.9 30s 16542 3890 891.95153 31 79 894.00000 889.90810 0.46% 18.5 35s 20368 4301 892.43175 35 80 894.00000 890.20833 0.42% 18.2 40s 24925 4512 892.65463 38 81 894.00000 890.50868 0.39% 17.7 45s 29317 4487 891.35756 31 84 894.00000 890.78796 0.36% 17.3 50s 33474 4267 891.97390 36 82 894.00000 891.03311 0.33% 16.8 55s 35805 4027 892.70732 35 67 894.00000 891.18663 0.31% 16.7 64s 36481 3930 891.82114 33 71 894.00000 891.23962 0.31% 16.6 65s 41159 3020 892.23315 31 82 894.00000 891.57910 0.27% 16.3 70s 46396 1030 cutoff 36 894.00000 892.21408 0.20% 15.8 75s Cutting planes: Gomory: 7 MIR: 1 Zero half: 4 Explored 47835 nodes (745083 simplex iterations) in 76.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (9, 15), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 33), (26, 56), (32, 56), (33, 45), (34, 64), (34, 74), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (45, 51), (60, 67), (63, 74)] adding cut for [(48, 49), (6, 58), (6, 30), (62, 70), (29, 75), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 29), (31, 49), (61, 71), (61, 72), (37, 72), (37, 70)] Optimize a model with 424 rows, 2850 columns and 82113 nonzeros Presolve time: 0.05s Presolved: 424 rows, 2850 columns, 82113 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 275 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 907.0000000 882.73694 2.68% - 0s H 0 0 902.0000000 882.73694 2.14% - 0s 0 0 883.18040 0 100 902.00000 883.18040 2.09% - 0s 0 0 883.18040 0 95 902.00000 883.18040 2.09% - 0s 0 0 883.44410 0 103 902.00000 883.44410 2.06% - 1s 0 0 883.46059 0 103 902.00000 883.46059 2.06% - 1s 0 0 883.48439 0 106 902.00000 883.48439 2.05% - 1s 0 0 883.52180 0 107 902.00000 883.52180 2.05% - 1s 0 0 883.54206 0 109 902.00000 883.54206 2.05% - 1s 0 0 883.54681 0 111 902.00000 883.54681 2.05% - 1s 0 0 883.55699 0 111 902.00000 883.55699 2.04% - 1s 0 0 883.58476 0 107 902.00000 883.58476 2.04% - 1s 0 0 883.60272 0 103 902.00000 883.60272 2.04% - 1s 0 0 883.61032 0 108 902.00000 883.61032 2.04% - 1s 0 0 883.61397 0 108 902.00000 883.61397 2.04% - 1s 0 2 883.61509 0 108 902.00000 883.61509 2.04% - 1s 615 513 895.17895 40 114 902.00000 884.59573 1.93% 17.6 5s * 765 536 84 898.0000000 884.59573 1.49% 21.1 5s * 990 606 58 897.0000000 884.59573 1.38% 22.1 8s * 1526 751 59 896.0000000 885.79240 1.14% 23.0 9s H 1531 655 895.0000000 885.92175 1.01% 23.0 9s 1617 688 893.28269 53 75 895.00000 886.19368 0.98% 22.8 10s H 3128 1122 894.0000000 887.48884 0.73% 21.5 13s 3310 1211 889.19224 36 112 894.00000 887.58706 0.72% 21.3 15s 5452 1517 892.85714 53 70 894.00000 887.97976 0.67% 21.4 20s 7910 1814 891.24242 43 76 894.00000 888.98777 0.56% 20.7 25s 10562 2425 892.44616 43 86 894.00000 889.49589 0.50% 20.2 30s 13747 2944 891.81060 42 87 894.00000 889.97418 0.45% 19.5 35s 17283 3291 cutoff 46 894.00000 890.33119 0.41% 19.1 40s 21018 3377 cutoff 48 894.00000 890.70878 0.37% 18.6 45s 24891 3233 892.94737 45 67 894.00000 891.05556 0.33% 18.2 50s 29700 2392 892.93548 50 73 894.00000 891.53608 0.28% 17.6 55s Cutting planes: Gomory: 6 MIR: 3 Zero half: 4 Explored 34564 nodes (582639 simplex iterations) in 59.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(10, 26), (10, 40), (11, 32), (11, 59), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 62), (29, 63), (32, 40), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (51, 56), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 425 rows, 2850 columns and 82933 nonzeros Presolve time: 0.05s Presolved: 425 rows, 2850 columns, 82933 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 275 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 904.0000000 882.73694 2.35% - 0s H 0 0 902.0000000 882.73694 2.14% - 0s 0 0 883.18040 0 100 902.00000 883.18040 2.09% - 0s 0 0 883.18040 0 95 902.00000 883.18040 2.09% - 0s 0 0 883.44410 0 103 902.00000 883.44410 2.06% - 0s 0 0 883.46059 0 103 902.00000 883.46059 2.06% - 1s 0 0 883.48439 0 106 902.00000 883.48439 2.05% - 1s 0 0 883.52180 0 107 902.00000 883.52180 2.05% - 1s 0 0 883.54206 0 109 902.00000 883.54206 2.05% - 1s 0 0 883.54681 0 111 902.00000 883.54681 2.05% - 1s 0 0 883.55699 0 111 902.00000 883.55699 2.04% - 1s 0 0 883.58476 0 107 902.00000 883.58476 2.04% - 1s 0 0 883.60272 0 105 902.00000 883.60272 2.04% - 1s 0 0 883.61353 0 108 902.00000 883.61353 2.04% - 1s 0 0 883.62817 0 108 902.00000 883.62817 2.04% - 1s 0 0 883.63327 0 110 902.00000 883.63327 2.04% - 1s 0 0 883.63332 0 112 902.00000 883.63332 2.04% - 1s 0 0 883.64719 0 110 902.00000 883.64719 2.03% - 1s 0 0 883.64814 0 111 902.00000 883.64814 2.03% - 1s 0 0 883.64871 0 110 902.00000 883.64871 2.03% - 1s 0 0 883.65296 0 111 902.00000 883.65296 2.03% - 1s 0 0 883.65912 0 111 902.00000 883.65912 2.03% - 1s 0 2 883.66396 0 111 902.00000 883.66396 2.03% - 2s * 98 80 57 898.0000000 884.13224 1.54% 28.4 2s H 600 412 897.0000000 885.16049 1.32% 22.5 3s 612 420 888.42424 13 106 897.00000 885.16049 1.32% 22.1 5s H 1164 581 896.0000000 886.19909 1.09% 23.3 7s * 2271 952 37 895.0000000 887.48958 0.84% 21.8 9s 2309 968 888.81709 19 87 895.00000 887.51335 0.84% 21.7 10s 4784 2153 892.86212 24 87 895.00000 888.49275 0.73% 20.6 15s * 5818 2322 25 894.0000000 888.71928 0.59% 20.4 16s 7370 2725 892.31846 25 84 894.00000 889.01155 0.56% 20.1 20s 9793 3247 890.78363 21 95 894.00000 889.46131 0.51% 19.8 25s 12427 3629 891.88136 24 82 894.00000 889.83204 0.47% 19.6 30s 15356 3954 891.86237 25 78 894.00000 890.12762 0.43% 19.3 35s 18620 4118 891.72293 20 80 894.00000 890.43204 0.40% 19.0 40s 22107 4166 892.92878 25 86 894.00000 890.70588 0.37% 18.6 45s 26387 3946 cutoff 21 894.00000 891.01064 0.33% 18.1 50s 30719 3408 892.84173 26 82 894.00000 891.34577 0.30% 17.7 55s 35257 2273 892.80342 23 83 894.00000 891.80160 0.25% 17.3 60s Cutting planes: Gomory: 7 MIR: 3 Zero half: 5 Explored 39313 nodes (651957 simplex iterations) in 64.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(4, 45), (9, 15), (9, 20), (10, 26), (10, 33), (12, 54), (12, 67), (14, 55), (14, 58), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (24, 50), (24, 57), (25, 50), (26, 56), (33, 45), (36, 54), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (60, 67), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(2, 74), (2, 23), (3, 63), (34, 64), (34, 74), (17, 64), (23, 29), (29, 63)] Optimize a model with 427 rows, 2850 columns and 83599 nonzeros Presolve time: 0.05s Presolved: 427 rows, 2850 columns, 83599 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 290 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 899.0000000 882.73694 1.81% - 0s 0 0 883.19256 0 97 899.00000 883.19256 1.76% - 0s 0 0 883.19256 0 95 899.00000 883.19256 1.76% - 1s 0 0 883.44410 0 103 899.00000 883.44410 1.73% - 1s 0 0 883.46059 0 103 899.00000 883.46059 1.73% - 1s 0 0 883.48439 0 106 899.00000 883.48439 1.73% - 1s 0 0 883.52180 0 107 899.00000 883.52180 1.72% - 1s 0 0 883.54199 0 109 899.00000 883.54199 1.72% - 1s 0 0 883.54519 0 110 899.00000 883.54519 1.72% - 1s 0 0 883.55060 0 113 899.00000 883.55060 1.72% - 1s 0 0 883.56270 0 109 899.00000 883.56270 1.72% - 1s 0 0 883.56655 0 110 899.00000 883.56655 1.72% - 1s 0 0 883.57385 0 110 899.00000 883.57385 1.72% - 1s 0 0 883.60561 0 109 899.00000 883.60561 1.71% - 1s 0 0 883.61454 0 110 899.00000 883.61454 1.71% - 1s 0 0 883.61645 0 115 899.00000 883.61645 1.71% - 1s 0 2 883.61667 0 115 899.00000 883.61667 1.71% - 1s 691 530 896.24444 55 68 899.00000 884.13083 1.65% 19.9 5s * 967 611 58 898.0000000 885.55421 1.39% 21.0 5s H 1994 920 897.0000000 886.94034 1.12% 20.3 7s * 2797 1287 47 896.0000000 887.39683 0.96% 19.8 9s H 2802 1111 895.0000000 887.41078 0.85% 19.8 9s 2901 1170 889.87829 27 97 895.00000 887.49219 0.84% 19.7 10s 4562 1568 892.10359 46 73 895.00000 887.52307 0.84% 20.2 15s 7250 2112 893.25455 40 78 895.00000 888.64033 0.71% 19.8 20s * 7709 2084 44 894.0000000 888.75144 0.59% 19.7 20s 9956 2593 889.86437 36 86 894.00000 889.31841 0.52% 19.4 25s 13033 3132 892.52788 41 75 894.00000 889.78735 0.47% 19.1 30s 16140 3357 891.07805 33 83 894.00000 890.21581 0.42% 18.9 35s 19746 3442 891.93881 33 93 894.00000 890.64362 0.38% 18.6 40s 23647 3134 cutoff 42 894.00000 891.07282 0.33% 18.2 45s 28338 2253 cutoff 38 894.00000 891.61446 0.27% 17.6 50s Cutting planes: Gomory: 2 MIR: 3 Zero half: 5 Explored 32774 nodes (550276 simplex iterations) in 54.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 66), (12, 54), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (55, 60), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(9, 36), (9, 20), (20, 36)] Optimize a model with 429 rows, 2850 columns and 84305 nonzeros Presolve time: 0.05s Presolved: 429 rows, 2850 columns, 84305 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 275 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 917.0000000 882.73694 3.74% - 0s H 0 0 902.0000000 882.73694 2.14% - 0s 0 0 883.18040 0 100 902.00000 883.18040 2.09% - 0s 0 0 883.18040 0 95 902.00000 883.18040 2.09% - 1s 0 0 883.44410 0 103 902.00000 883.44410 2.06% - 1s 0 0 883.46059 0 103 902.00000 883.46059 2.06% - 1s 0 0 883.48439 0 106 902.00000 883.48439 2.05% - 1s 0 0 883.52180 0 107 902.00000 883.52180 2.05% - 1s 0 0 883.54206 0 109 902.00000 883.54206 2.05% - 1s 0 0 883.54681 0 111 902.00000 883.54681 2.05% - 1s 0 0 883.55699 0 111 902.00000 883.55699 2.04% - 1s 0 0 883.58476 0 107 902.00000 883.58476 2.04% - 1s 0 0 883.60272 0 103 902.00000 883.60272 2.04% - 1s 0 0 883.61032 0 108 902.00000 883.61032 2.04% - 1s 0 0 883.61397 0 108 902.00000 883.61397 2.04% - 1s 0 2 883.61509 0 108 902.00000 883.61509 2.04% - 1s 615 516 887.97521 27 110 902.00000 884.59296 1.93% 18.9 5s * 831 582 70 900.0000000 884.59296 1.71% 21.2 6s * 903 562 49 899.0000000 885.56316 1.49% 21.6 6s * 2214 1057 41 898.0000000 886.97706 1.23% 22.2 9s H 2304 1013 897.0000000 887.04993 1.11% 22.1 10s 3645 1481 890.66238 38 85 897.00000 887.25511 1.09% 22.5 15s H 4102 1497 896.0000000 887.60433 0.94% 22.1 16s * 5458 1663 44 895.0000000 888.25249 0.75% 21.9 18s * 5593 1433 45 894.0000000 888.29679 0.64% 21.8 19s 5925 1527 891.24878 35 90 894.00000 888.52787 0.61% 21.7 20s 8531 2205 891.66504 33 88 894.00000 889.26923 0.53% 21.0 25s 11211 2748 891.04371 31 90 894.00000 889.75369 0.47% 20.4 30s 14215 3115 892.97333 36 80 894.00000 890.12853 0.43% 19.8 35s 17540 3333 892.48900 43 72 894.00000 890.49206 0.39% 19.4 40s 20517 3357 892.65385 43 78 894.00000 890.76883 0.36% 19.0 45s 24623 3134 891.90566 34 86 894.00000 891.10517 0.32% 18.5 50s 28993 2536 892.93182 36 71 894.00000 891.47550 0.28% 17.9 55s 34033 1103 892.92857 42 64 894.00000 892.07916 0.21% 17.2 60s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 35874 nodes (602264 simplex iterations) in 61.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 38), (21, 38), (21, 71), (23, 63), (23, 65), (24, 44), (24, 57), (29, 62), (29, 63), (30, 46), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (66, 67), (39, 59), (40, 73), (10, 40), (10, 26), (11, 32), (11, 73), (12, 67), (12, 39), (34, 64), (17, 64), (17, 50), (19, 56), (19, 25), (25, 50), (26, 56)] adding cut for [(36, 54), (9, 36), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (20, 55), (20, 60)] Optimize a model with 432 rows, 2850 columns and 84744 nonzeros Presolve time: 0.05s Presolved: 432 rows, 2850 columns, 84744 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 308 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 906.0000000 882.73694 2.57% - 0s H 0 0 902.0000000 882.73694 2.14% - 0s 0 0 883.18040 0 100 902.00000 883.18040 2.09% - 0s 0 0 883.18040 0 95 902.00000 883.18040 2.09% - 1s 0 0 883.44410 0 103 902.00000 883.44410 2.06% - 1s 0 0 883.46059 0 103 902.00000 883.46059 2.06% - 1s 0 0 883.48439 0 106 902.00000 883.48439 2.05% - 1s 0 0 883.52180 0 107 902.00000 883.52180 2.05% - 1s 0 0 883.54206 0 109 902.00000 883.54206 2.05% - 1s 0 0 883.54681 0 111 902.00000 883.54681 2.05% - 1s 0 0 883.55699 0 111 902.00000 883.55699 2.04% - 1s 0 0 883.58476 0 107 902.00000 883.58476 2.04% - 1s 0 0 883.60272 0 103 902.00000 883.60272 2.04% - 1s 0 0 883.61032 0 108 902.00000 883.61032 2.04% - 1s 0 0 883.61397 0 108 902.00000 883.61397 2.04% - 1s 0 2 883.61509 0 108 902.00000 883.61509 2.04% - 1s 613 515 893.67266 22 110 902.00000 884.59296 1.93% 18.9 5s * 1132 683 53 899.0000000 885.71232 1.48% 22.4 7s * 1389 630 34 896.0000000 886.00603 1.12% 22.5 7s 1620 703 886.25591 26 101 896.00000 886.25591 1.09% 22.8 10s 3736 1322 894.12255 47 75 896.00000 887.79639 0.92% 22.0 15s 6125 2529 893.05490 40 73 896.00000 888.70507 0.81% 21.3 20s 8389 3532 891.38207 37 85 896.00000 889.14658 0.76% 20.8 25s * 8399 3263 47 895.0000000 889.14658 0.65% 20.8 25s 10869 4081 cutoff 36 895.00000 889.54263 0.61% 20.6 30s *11804 3566 43 894.0000000 889.65883 0.49% 20.5 31s 13712 3782 892.50360 39 75 894.00000 889.90318 0.46% 20.2 35s 16797 4040 892.94311 36 90 894.00000 890.22664 0.42% 19.9 40s 19938 4111 891.51814 34 94 894.00000 890.53330 0.39% 19.7 45s 23422 3970 891.88889 38 66 894.00000 890.82470 0.36% 19.3 50s 27198 3615 892.19613 37 92 894.00000 891.13115 0.32% 18.9 55s 31765 2850 892.65517 38 81 894.00000 891.54558 0.27% 18.3 60s 36539 949 cutoff 37 894.00000 892.36150 0.18% 17.7 65s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 37692 nodes (656939 simplex iterations) in 65.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 39), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (25, 50), (26, 51), (26, 56), (28, 58), (31, 49), (32, 56), (37, 48), (37, 70), (39, 66), (48, 49), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(33, 45), (4, 45), (4, 17), (10, 33), (10, 40), (43, 65), (43, 44), (29, 62), (29, 63), (17, 64), (22, 75), (22, 62), (23, 65), (23, 63), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 434 rows, 2850 columns and 85350 nonzeros Presolve time: 0.05s Presolved: 434 rows, 2850 columns, 85350 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.827369e+02, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.73694 0 95 2906.00000 882.73694 69.6% - 0s Another try with MIP start H 0 0 904.0000000 882.73694 2.35% - 0s H 0 0 902.0000000 882.73694 2.14% - 0s 0 0 883.18040 0 100 902.00000 883.18040 2.09% - 0s 0 0 883.18040 0 95 902.00000 883.18040 2.09% - 1s 0 0 883.44410 0 103 902.00000 883.44410 2.06% - 1s 0 0 883.46059 0 103 902.00000 883.46059 2.06% - 1s 0 0 883.48439 0 106 902.00000 883.48439 2.05% - 1s 0 0 883.52180 0 107 902.00000 883.52180 2.05% - 1s 0 0 883.54206 0 109 902.00000 883.54206 2.05% - 1s 0 0 883.54681 0 111 902.00000 883.54681 2.05% - 1s 0 0 883.55699 0 111 902.00000 883.55699 2.04% - 1s 0 0 883.58476 0 107 902.00000 883.58476 2.04% - 1s 0 0 883.60272 0 105 902.00000 883.60272 2.04% - 1s 0 0 883.61353 0 108 902.00000 883.61353 2.04% - 1s 0 0 883.62817 0 108 902.00000 883.62817 2.04% - 1s 0 0 883.63327 0 110 902.00000 883.63327 2.04% - 1s 0 0 883.63332 0 112 902.00000 883.63332 2.04% - 1s 0 0 883.64719 0 110 902.00000 883.64719 2.03% - 2s 0 0 883.64814 0 111 902.00000 883.64814 2.03% - 2s 0 0 883.64858 0 112 902.00000 883.64858 2.03% - 2s 0 2 883.64888 0 112 902.00000 883.64888 2.03% - 2s 608 476 886.15627 7 104 902.00000 884.93591 1.89% 19.4 5s * 841 554 65 901.0000000 885.06486 1.77% 21.3 6s * 848 518 69 900.0000000 885.06486 1.66% 21.2 6s * 924 493 54 899.0000000 885.06541 1.55% 21.5 6s 2406 1181 889.88827 23 73 899.00000 887.12093 1.32% 21.7 10s * 2556 972 52 896.0000000 887.20428 0.98% 21.6 10s 3741 1373 894.50495 51 71 896.00000 887.35612 0.96% 21.9 15s * 4741 1491 49 895.0000000 887.55060 0.83% 21.5 17s 6013 1772 893.00000 46 73 895.00000 888.25757 0.75% 21.1 20s * 7822 2230 44 894.0000000 888.74701 0.59% 20.7 23s 8625 2419 892.84345 42 78 894.00000 888.94737 0.57% 20.5 25s 11123 2966 892.47495 49 78 894.00000 889.41778 0.51% 20.2 30s 14211 3417 892.41507 47 81 894.00000 889.91159 0.46% 19.7 35s 17441 3679 890.93110 39 91 894.00000 890.26733 0.42% 19.3 40s 20456 3662 cutoff 44 894.00000 890.60156 0.38% 18.9 45s 24312 3441 892.92297 40 85 894.00000 890.97844 0.34% 18.5 50s 28826 2658 892.31970 39 69 894.00000 891.42857 0.29% 18.0 55s 33660 931 892.33841 45 71 894.00000 892.21141 0.20% 17.4 60s Cutting planes: Gomory: 4 MIR: 2 Zero half: 5 Explored 34897 nodes (594087 simplex iterations) in 61.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (21, 38), (21, 71), (22, 62), (22, 75), (23, 63), (23, 65), (29, 63), (29, 75), (31, 49), (37, 38), (37, 48), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (70, 72)] adding cut for [(33, 51), (33, 45), (4, 45), (39, 66), (39, 59), (9, 15), (11, 32), (11, 59), (12, 66), (12, 67), (15, 60), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] adding cut for [(36, 54), (6, 16), (6, 30), (8, 36), (14, 55), (14, 58), (16, 58), (20, 54), (20, 55)] Optimize a model with 437 rows, 2850 columns and 85762 nonzeros Presolve time: 0.05s Presolved: 437 rows, 2850 columns, 85762 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 295 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 907.0000000 882.83738 2.66% - 0s H 0 0 902.0000000 882.83738 2.12% - 0s 0 0 883.28318 0 95 902.00000 883.28318 2.08% - 0s 0 0 883.28318 0 94 902.00000 883.28318 2.08% - 1s 0 0 883.55319 0 101 902.00000 883.55319 2.05% - 1s 0 0 883.66299 0 106 902.00000 883.66299 2.03% - 1s 0 0 883.72066 0 110 902.00000 883.72066 2.03% - 1s 0 0 883.74717 0 111 902.00000 883.74717 2.02% - 1s 0 0 883.75366 0 111 902.00000 883.75366 2.02% - 1s 0 0 883.76848 0 110 902.00000 883.76848 2.02% - 1s 0 0 883.77938 0 110 902.00000 883.77938 2.02% - 1s 0 0 883.78079 0 110 902.00000 883.78079 2.02% - 1s 0 0 883.78864 0 110 902.00000 883.78864 2.02% - 1s 0 0 883.78921 0 111 902.00000 883.78921 2.02% - 1s 0 0 883.82667 0 111 902.00000 883.82667 2.01% - 1s 0 0 883.82951 0 110 902.00000 883.82951 2.01% - 1s 0 0 883.83135 0 110 902.00000 883.83135 2.01% - 1s 0 0 883.83579 0 113 902.00000 883.83579 2.01% - 2s 0 2 883.83683 0 113 902.00000 883.83683 2.01% - 2s H 462 358 900.0000000 884.26836 1.75% 19.0 3s H 600 306 896.0000000 884.28927 1.31% 18.4 3s 613 315 891.35931 16 110 896.00000 884.28927 1.31% 18.0 5s 2569 1334 890.13016 30 98 896.00000 887.31961 0.97% 19.9 10s 4847 2730 890.23658 24 87 896.00000 888.03766 0.89% 19.6 15s H 7217 3838 895.0000000 888.44041 0.73% 19.2 19s 7455 3961 893.83099 43 66 895.00000 888.48124 0.73% 19.2 20s 10022 5034 891.70346 30 86 895.00000 888.91734 0.68% 19.2 25s 12740 6054 891.60606 31 81 895.00000 889.27121 0.64% 19.2 30s 15353 6955 892.50776 27 82 895.00000 889.49120 0.62% 19.2 35s 18206 7942 cutoff 29 895.00000 889.71506 0.59% 19.0 40s 21712 8884 893.30358 33 78 895.00000 889.94829 0.56% 18.8 45s 25519 9834 893.52846 40 73 895.00000 890.13859 0.54% 18.6 50s 28809 10611 891.24265 25 76 895.00000 890.28483 0.53% 18.4 55s 32651 11507 893.29357 31 87 895.00000 890.42518 0.51% 18.2 60s 36569 12290 893.53739 29 77 895.00000 890.55474 0.50% 18.1 65s 39967 12929 892.65757 31 83 895.00000 890.66986 0.48% 17.9 70s 40804 13056 cutoff 29 895.00000 890.70000 0.48% 17.9 77s 42891 13350 cutoff 31 895.00000 890.76622 0.47% 17.8 80s 46859 13997 893.02941 39 67 895.00000 890.88566 0.46% 17.7 85s 50772 14486 891.62019 24 83 895.00000 891.00000 0.45% 17.6 90s 54439 14874 893.58462 30 76 895.00000 891.10532 0.44% 17.5 95s 57606 15294 893.12689 32 75 895.00000 891.19011 0.43% 17.4 100s 61585 15608 893.78008 34 78 895.00000 891.28105 0.42% 17.3 105s 65596 15882 892.91905 29 90 895.00000 891.37620 0.40% 17.2 110s 69700 16093 892.05301 30 77 895.00000 891.46127 0.40% 17.1 115s 73126 16291 893.88430 35 83 895.00000 891.53056 0.39% 17.0 120s 77128 16356 893.21767 34 86 895.00000 891.61675 0.38% 17.0 125s 81528 16364 892.27100 31 75 895.00000 891.71429 0.37% 16.9 130s *81875 11369 30 894.0000000 891.72347 0.25% 16.8 130s 83972 10705 892.38049 30 82 894.00000 891.81921 0.24% 16.8 135s 87889 9177 892.55172 35 83 894.00000 892.02155 0.22% 16.6 140s 92036 7080 892.75652 28 74 894.00000 892.25581 0.20% 16.4 145s 97437 3080 cutoff 35 894.00000 892.66951 0.15% 16.1 150s Cutting planes: Gomory: 7 MIR: 3 Zero half: 13 Mod-K: 1 Explored 100676 nodes (1577831 simplex iterations) in 152.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 17), (4, 45), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (28, 53), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (45, 51), (50, 57), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (33, 41), (39, 66), (10, 33), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 20), (15, 60), (26, 56), (60, 67)] Optimize a model with 439 rows, 2850 columns and 86349 nonzeros Presolve time: 0.05s Presolved: 439 rows, 2850 columns, 86349 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 295 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 905.0000000 882.83738 2.45% - 0s 0 0 883.28318 0 95 905.00000 883.28318 2.40% - 1s 0 0 883.28318 0 94 905.00000 883.28318 2.40% - 1s 0 0 883.55319 0 101 905.00000 883.55319 2.37% - 1s 0 0 883.66299 0 106 905.00000 883.66299 2.36% - 1s 0 0 883.70278 0 109 905.00000 883.70278 2.35% - 1s 0 0 883.73878 0 110 905.00000 883.73878 2.35% - 1s 0 0 883.80436 0 110 905.00000 883.80436 2.34% - 1s 0 0 883.81275 0 112 905.00000 883.81275 2.34% - 1s 0 0 883.82870 0 109 905.00000 883.82870 2.34% - 1s 0 0 883.82962 0 111 905.00000 883.82962 2.34% - 1s 0 0 883.83026 0 112 905.00000 883.83026 2.34% - 2s 0 2 883.83257 0 112 905.00000 883.83257 2.34% - 2s * 477 386 64 904.0000000 884.11289 2.20% 19.3 3s 608 502 899.00000 44 106 904.00000 884.52994 2.15% 19.7 5s * 683 512 45 896.0000000 884.59469 1.27% 21.3 5s 1761 844 894.55835 47 70 896.00000 886.80557 1.03% 22.2 10s H 1797 778 895.0000000 886.90296 0.90% 22.1 10s 3961 1651 891.72531 42 79 895.00000 888.37968 0.74% 20.6 15s 6523 2692 893.73684 34 67 895.00000 889.05809 0.66% 19.9 20s 9072 3538 894.00000 40 54 895.00000 889.54214 0.61% 19.6 25s 11922 4417 891.32483 32 73 895.00000 889.90027 0.57% 19.4 30s *13407 4143 44 894.0000000 890.05769 0.44% 19.3 32s 14797 4309 891.94143 32 95 894.00000 890.23741 0.42% 19.2 35s 17973 4361 cutoff 36 894.00000 890.63559 0.38% 19.0 40s 21427 4197 892.59436 43 71 894.00000 890.98701 0.34% 18.7 45s 25434 3596 892.92377 38 74 894.00000 891.38330 0.29% 18.2 50s 29723 2245 892.98598 37 83 894.00000 891.93750 0.23% 17.7 55s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 33092 nodes (559774 simplex iterations) in 57.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.940000000000e+02, best bound 8.940000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (16, 58), (21, 38), (21, 71), (22, 49), (22, 62), (23, 63), (23, 65), (24, 44), (24, 57), (28, 58), (29, 62), (29, 63), (34, 74), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (8, 36), (15, 36), (15, 60), (17, 64), (50, 64), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(9, 14), (11, 39), (11, 59), (12, 39), (12, 54), (14, 55), (20, 54), (20, 55)] Optimize a model with 442 rows, 2850 columns and 86841 nonzeros Presolve time: 0.06s Presolved: 442 rows, 2850 columns, 86841 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 281 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 904.0000000 882.83738 2.34% - 0s H 0 0 902.0000000 882.83738 2.12% - 0s 0 0 883.28318 0 95 902.00000 883.28318 2.08% - 1s 0 0 883.28318 0 94 902.00000 883.28318 2.08% - 1s 0 0 883.55319 0 101 902.00000 883.55319 2.05% - 1s 0 0 883.60266 0 105 902.00000 883.60266 2.04% - 1s 0 0 883.69802 0 109 902.00000 883.69802 2.03% - 1s 0 0 883.72539 0 109 902.00000 883.72539 2.03% - 1s 0 0 883.72626 0 110 902.00000 883.72626 2.03% - 1s 0 0 883.73391 0 110 902.00000 883.73391 2.03% - 1s 0 0 883.75195 0 111 902.00000 883.75195 2.02% - 1s 0 0 883.76178 0 113 902.00000 883.76178 2.02% - 1s 0 0 883.78258 0 115 902.00000 883.78258 2.02% - 2s 0 0 883.79178 0 112 902.00000 883.79178 2.02% - 2s 0 0 883.80520 0 112 902.00000 883.80520 2.02% - 2s 0 0 883.80619 0 114 902.00000 883.80619 2.02% - 2s 0 0 883.81007 0 113 902.00000 883.81007 2.02% - 2s 0 0 883.81756 0 112 902.00000 883.81756 2.02% - 2s 0 0 883.83444 0 111 902.00000 883.83444 2.01% - 2s 0 0 883.84046 0 113 902.00000 883.84046 2.01% - 2s 0 0 883.84305 0 114 902.00000 883.84305 2.01% - 2s 0 0 883.84597 0 116 902.00000 883.84597 2.01% - 2s 0 2 883.84784 0 116 902.00000 883.84784 2.01% - 2s * 359 301 47 901.0000000 884.26766 1.86% 20.8 3s * 440 287 54 898.0000000 884.27073 1.53% 20.8 3s 606 393 886.53725 7 103 898.00000 884.74501 1.48% 20.3 5s H 1983 947 897.0000000 886.90186 1.13% 22.0 9s 2272 1121 894.37821 27 91 897.00000 887.19883 1.09% 21.9 10s H 3134 1528 896.0000000 887.71161 0.93% 21.0 11s 4769 2358 889.10311 18 89 896.00000 888.20479 0.87% 20.4 15s 7122 3501 894.00000 27 79 896.00000 888.68182 0.82% 20.1 20s 9444 4527 890.11229 22 74 896.00000 888.99622 0.78% 19.9 25s * 9702 4112 25 895.0000000 889.02889 0.67% 19.9 25s 12157 4903 893.76316 33 69 895.00000 889.37088 0.63% 19.7 30s 14895 5636 cutoff 23 895.00000 889.65854 0.60% 19.5 35s 17847 6359 893.38462 24 70 895.00000 889.90143 0.57% 19.3 40s 20929 6971 893.31565 28 82 895.00000 890.11414 0.55% 19.0 45s 24436 7579 892.79412 28 84 895.00000 890.31524 0.52% 18.7 50s 28514 8199 891.56527 21 91 895.00000 890.50935 0.50% 18.4 55s 32580 8698 893.81053 24 68 895.00000 890.69130 0.48% 18.2 60s 36657 9110 892.27572 20 95 895.00000 890.86072 0.46% 17.9 65s 40486 9386 cutoff 22 895.00000 891.01009 0.45% 17.7 70s 40804 9401 cutoff 21 895.00000 891.02174 0.44% 17.7 79s 41400 9435 893.43277 25 84 895.00000 891.04656 0.44% 17.7 80s 45258 9606 892.17803 23 82 895.00000 891.20294 0.42% 17.5 85s 49336 9729 893.98963 24 85 895.00000 891.34337 0.41% 17.4 90s 53162 9754 893.24688 28 90 895.00000 891.47368 0.39% 17.2 95s 57226 9744 892.62667 27 70 895.00000 891.60000 0.38% 17.1 100s 61595 9582 893.72298 21 90 895.00000 891.74031 0.36% 16.9 105s 65564 9273 892.66667 21 63 895.00000 891.87586 0.35% 16.8 110s 69840 8817 893.15842 22 91 895.00000 892.00426 0.33% 16.7 115s 73659 8370 894.00000 28 36 895.00000 892.13287 0.32% 16.6 120s 77578 7736 893.36316 29 84 895.00000 892.27711 0.30% 16.5 125s 81956 6784 893.17963 28 81 895.00000 892.45294 0.28% 16.3 130s 86310 5617 893.78420 26 80 895.00000 892.64706 0.26% 16.2 135s 90794 3783 cutoff 25 895.00000 892.95313 0.23% 16.0 140s 95873 633 cutoff 29 895.00000 893.72321 0.14% 15.7 145s Cutting planes: Gomory: 8 MIR: 2 Zero half: 4 Explored 96544 nodes (1505461 simplex iterations) in 145.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.950000000000e+02, best bound 8.950000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 38), (11, 39), (11, 59), (12, 39), (12, 54), (14, 55), (14, 58), (16, 30), (16, 58), (17, 24), (20, 54), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (29, 62), (29, 63), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(51, 56), (2, 64), (2, 74), (4, 45), (33, 45), (34, 74), (50, 64), (19, 51), (19, 25), (25, 50), (26, 56), (10, 33), (10, 26)] adding cut for [(32, 66), (32, 73), (66, 67), (40, 73), (9, 36), (15, 36), (15, 60), (60, 67)] Optimize a model with 445 rows, 2850 columns and 87403 nonzeros Presolve time: 0.06s Presolved: 445 rows, 2850 columns, 87403 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 301 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 906.0000000 882.83738 2.56% - 0s H 0 0 902.0000000 882.83738 2.12% - 0s 0 0 883.28318 0 95 902.00000 883.28318 2.08% - 1s 0 0 883.28318 0 94 902.00000 883.28318 2.08% - 1s 0 0 883.55319 0 101 902.00000 883.55319 2.05% - 1s 0 0 883.60266 0 105 902.00000 883.60266 2.04% - 1s 0 0 883.69802 0 109 902.00000 883.69802 2.03% - 1s 0 0 883.72539 0 109 902.00000 883.72539 2.03% - 1s 0 0 883.72626 0 110 902.00000 883.72626 2.03% - 1s 0 0 883.73391 0 110 902.00000 883.73391 2.03% - 1s 0 0 883.75195 0 111 902.00000 883.75195 2.02% - 1s 0 0 883.76178 0 113 902.00000 883.76178 2.02% - 2s 0 0 883.78258 0 115 902.00000 883.78258 2.02% - 2s 0 0 883.79178 0 112 902.00000 883.79178 2.02% - 2s 0 0 883.80520 0 112 902.00000 883.80520 2.02% - 2s 0 0 883.80619 0 114 902.00000 883.80619 2.02% - 2s 0 0 883.81007 0 113 902.00000 883.81007 2.02% - 2s 0 0 883.82002 0 109 902.00000 883.82002 2.02% - 2s 0 0 883.82449 0 112 902.00000 883.82449 2.02% - 2s 0 0 883.83868 0 112 902.00000 883.83868 2.01% - 2s 0 0 883.84017 0 113 902.00000 883.84017 2.01% - 2s 0 0 883.84110 0 114 902.00000 883.84110 2.01% - 2s 0 2 883.84341 0 114 902.00000 883.84341 2.01% - 2s * 105 95 64 901.0000000 884.68734 1.81% 23.6 3s 606 495 893.55882 28 107 901.00000 885.40920 1.73% 19.9 5s * 723 531 68 899.0000000 885.40920 1.51% 21.2 6s * 909 527 65 897.0000000 885.40920 1.29% 22.3 7s 1292 692 888.79383 36 99 897.00000 886.02327 1.22% 23.7 10s 3499 1613 889.66810 38 94 897.00000 887.75174 1.03% 22.1 15s * 5803 2759 57 896.0000000 888.45595 0.84% 21.8 19s 5890 2798 891.40000 39 65 896.00000 888.46702 0.84% 21.8 20s 8260 3918 894.66283 39 77 896.00000 888.92109 0.79% 21.5 25s 10569 4936 892.24503 44 73 896.00000 889.30172 0.75% 21.1 30s 13449 6078 894.20635 44 87 896.00000 889.61120 0.71% 21.0 35s 16106 7069 893.68000 42 83 896.00000 889.84062 0.69% 20.8 40s *16982 6507 50 895.0000000 889.93750 0.57% 20.7 41s 19066 6955 893.13136 41 80 895.00000 890.14020 0.54% 20.7 45s 22407 7524 893.45492 41 74 895.00000 890.38940 0.52% 20.3 50s 26034 8075 893.43970 40 76 895.00000 890.59329 0.49% 19.9 55s 29459 8486 893.10498 41 86 895.00000 890.78066 0.47% 19.7 60s 33387 8852 cutoff 43 895.00000 890.95475 0.45% 19.4 65s 37436 9109 893.61111 44 78 895.00000 891.12857 0.43% 19.1 70s 40900 9303 892.13537 37 84 895.00000 891.26709 0.42% 18.9 83s 42303 9335 cutoff 44 895.00000 891.32075 0.41% 18.9 85s 46278 9376 892.35307 39 74 895.00000 891.46386 0.40% 18.7 90s 50201 9266 893.74138 44 76 895.00000 891.59413 0.38% 18.5 95s 53661 9112 893.40119 40 84 895.00000 891.71157 0.37% 18.4 100s 57744 8790 892.97143 46 73 895.00000 891.85670 0.35% 18.2 105s 62018 8363 893.84615 50 68 895.00000 892.00488 0.33% 18.1 110s 66219 7797 892.48860 48 82 895.00000 892.15877 0.32% 17.9 115s 69823 7177 893.61364 39 77 895.00000 892.30201 0.30% 17.8 120s 74082 6176 cutoff 46 895.00000 892.48219 0.28% 17.7 125s 78214 4852 cutoff 44 895.00000 892.71235 0.26% 17.6 130s 82426 3100 cutoff 42 895.00000 893.03289 0.22% 17.4 135s Cutting planes: Gomory: 2 MIR: 1 Zero half: 9 Explored 86936 nodes (1475534 simplex iterations) in 139.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.950000000000e+02, best bound 8.950000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 16), (42, 44), (42, 57), (43, 65), (43, 44), (14, 58), (14, 28), (16, 58), (21, 38), (21, 71), (23, 65), (23, 62), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 56), (4, 17), (33, 45), (40, 73), (10, 33), (10, 40), (11, 32), (11, 73), (17, 50), (19, 51), (19, 25), (41, 45), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 74), (2, 34), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49), (63, 74)] adding cut for [(66, 67), (39, 59), (9, 15), (12, 66), (12, 39), (15, 60), (60, 67)] Optimize a model with 449 rows, 2850 columns and 87806 nonzeros Presolve time: 0.06s Presolved: 449 rows, 2850 columns, 87806 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 289 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 903.0000000 882.83738 2.23% - 0s H 0 0 902.0000000 882.83738 2.12% - 0s 0 0 883.28318 0 95 902.00000 883.28318 2.08% - 0s 0 0 883.28318 0 94 902.00000 883.28318 2.08% - 0s 0 0 883.55463 0 103 902.00000 883.55463 2.04% - 1s 0 0 883.66527 0 105 902.00000 883.66527 2.03% - 1s 0 0 883.73943 0 106 902.00000 883.73943 2.02% - 1s 0 0 883.75865 0 110 902.00000 883.75865 2.02% - 1s 0 0 883.78636 0 110 902.00000 883.78636 2.02% - 1s 0 0 883.80246 0 112 902.00000 883.80246 2.02% - 1s 0 0 883.82027 0 113 902.00000 883.82027 2.02% - 1s 0 0 883.82027 0 112 902.00000 883.82027 2.02% - 1s 0 2 883.82243 0 112 902.00000 883.82243 2.02% - 1s 607 527 891.22176 29 110 902.00000 884.37802 1.95% 18.3 5s * 1297 626 30 897.0000000 885.81040 1.25% 22.3 8s 1412 650 890.24172 23 111 897.00000 885.94512 1.23% 21.7 10s 3239 1259 894.30952 49 79 897.00000 887.24000 1.09% 21.2 15s H 4559 1889 896.0000000 887.73519 0.92% 20.7 18s 5486 2365 889.83625 40 94 896.00000 888.13424 0.88% 20.4 20s * 7860 3175 58 895.0000000 888.67233 0.71% 19.9 24s 7955 3207 890.94286 36 89 895.00000 888.69574 0.70% 19.9 25s 10324 3983 cutoff 40 895.00000 889.13987 0.65% 19.8 30s 13020 4779 892.66395 38 86 895.00000 889.56425 0.61% 19.6 35s 15791 5491 892.02256 38 83 895.00000 889.85794 0.57% 19.5 40s 18647 6131 893.84542 43 75 895.00000 890.09647 0.55% 19.3 45s 21332 6608 892.11225 40 91 895.00000 890.32931 0.52% 19.1 50s 25251 7175 893.44582 41 88 895.00000 890.57222 0.49% 18.8 55s 28753 7580 891.91379 44 81 895.00000 890.77083 0.47% 18.5 60s 32758 7896 891.91791 36 85 895.00000 890.98572 0.45% 18.3 65s 36846 8136 893.58497 37 86 895.00000 891.17778 0.43% 18.0 70s 40993 8176 893.90000 41 79 895.00000 891.34615 0.41% 17.8 75s 41202 8185 cutoff 44 895.00000 891.35485 0.41% 17.8 84s 41348 8188 893.98077 45 79 895.00000 891.35994 0.41% 17.8 85s 45573 8129 892.64254 40 88 895.00000 891.52941 0.39% 17.6 90s 49726 7954 cutoff 42 895.00000 891.70098 0.37% 17.5 95s 53871 7638 893.08276 41 83 895.00000 891.87664 0.35% 17.3 100s 57075 7298 893.20158 44 81 895.00000 892.00070 0.34% 17.2 105s 61131 6631 cutoff 47 895.00000 892.18317 0.31% 17.0 110s 65008 5864 893.15882 39 69 895.00000 892.37113 0.29% 16.9 115s 69419 4498 893.78816 46 75 895.00000 892.65716 0.26% 16.7 120s 73842 2453 cutoff 45 895.00000 893.07973 0.21% 16.5 125s Cutting planes: Gomory: 10 MIR: 3 Zero half: 2 Explored 77171 nodes (1243475 simplex iterations) in 128.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.950000000000e+02, best bound 8.950000000000e+02, gap 0.0% adding cut for [(3, 75), (6, 38), (6, 48), (9, 20), (11, 59), (11, 66), (15, 20), (15, 60), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (32, 73), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 450 rows, 2850 columns and 88472 nonzeros Presolve time: 0.06s Presolved: 450 rows, 2850 columns, 88472 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2906.0000000 Root relaxation: objective 8.828374e+02, 304 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 882.83738 0 94 2906.00000 882.83738 69.6% - 0s Another try with MIP start H 0 0 906.0000000 882.83738 2.56% - 0s H 0 0 902.0000000 882.83738 2.12% - 0s 0 0 883.28318 0 95 902.00000 883.28318 2.08% - 1s 0 0 883.28318 0 94 902.00000 883.28318 2.08% - 1s 0 0 883.55431 0 105 902.00000 883.55431 2.04% - 1s 0 0 883.66299 0 106 902.00000 883.66299 2.03% - 1s 0 0 883.72066 0 110 902.00000 883.72066 2.03% - 1s 0 0 883.74717 0 111 902.00000 883.74717 2.02% - 1s 0 0 883.75366 0 111 902.00000 883.75366 2.02% - 1s 0 0 883.76848 0 110 902.00000 883.76848 2.02% - 1s 0 0 883.77938 0 110 902.00000 883.77938 2.02% - 1s 0 0 883.78079 0 110 902.00000 883.78079 2.02% - 1s 0 0 883.78864 0 110 902.00000 883.78864 2.02% - 1s 0 0 883.78921 0 111 902.00000 883.78921 2.02% - 1s 0 0 883.82667 0 111 902.00000 883.82667 2.01% - 2s 0 0 883.82951 0 110 902.00000 883.82951 2.01% - 2s 0 0 883.83135 0 110 902.00000 883.83135 2.01% - 2s 0 0 883.83579 0 113 902.00000 883.83579 2.01% - 2s 0 2 883.83683 0 113 902.00000 883.83683 2.01% - 2s H 498 410 900.0000000 884.26793 1.75% 18.5 3s 608 492 893.63807 53 103 900.00000 884.28705 1.75% 18.6 5s H 792 545 898.0000000 885.12979 1.43% 21.4 6s * 1713 836 50 897.0000000 886.74251 1.14% 22.7 8s 2253 1072 890.40723 26 94 897.00000 887.20935 1.09% 22.5 10s * 2526 1145 35 896.0000000 887.32400 0.97% 22.1 10s 3377 1468 890.26859 34 89 896.00000 887.44132 0.96% 22.3 15s 5591 1939 892.43293 36 84 896.00000 888.15753 0.88% 21.7 20s 7867 2735 890.50942 39 90 896.00000 888.84247 0.80% 21.6 25s 10241 3789 cutoff 46 896.00000 889.23136 0.76% 21.2 30s *11273 3907 38 895.0000000 889.37500 0.63% 21.1 31s 12917 4385 893.50549 40 70 895.00000 889.59752 0.60% 20.9 35s 15543 5055 893.42213 47 83 895.00000 889.88528 0.57% 20.7 40s 18527 5708 892.75781 41 79 895.00000 890.17015 0.54% 20.4 45s 21435 6229 892.53989 44 79 895.00000 890.40000 0.51% 20.2 50s 24587 6717 893.26909 38 81 895.00000 890.59929 0.49% 19.9 55s 28729 7256 893.54150 38 80 895.00000 890.81620 0.47% 19.5 60s 32840 7628 cutoff 40 895.00000 891.00000 0.45% 19.1 65s 37030 7887 892.33036 45 74 895.00000 891.18807 0.43% 18.8 70s 40766 7987 cutoff 43 895.00000 891.33508 0.41% 18.6 75s 41000 8007 cutoff 41 895.00000 891.34361 0.41% 18.6 82s 43230 8017 893.41079 39 84 895.00000 891.43590 0.40% 18.5 85s 46993 8002 893.40763 44 91 895.00000 891.56425 0.38% 18.3 90s 50807 7913 cutoff 38 895.00000 891.69949 0.37% 18.1 95s 55166 7607 892.88333 41 84 895.00000 891.86429 0.35% 17.9 100s 59232 7244 893.11405 38 92 895.00000 892.00000 0.34% 17.7 105s 63085 6768 cutoff 44 895.00000 892.14976 0.32% 17.6 110s 67712 5984 cutoff 43 895.00000 892.33333 0.30% 17.4 115s 72106 4893 cutoff 39 895.00000 892.54656 0.27% 17.2 120s 76139 3604 893.75683 37 77 895.00000 892.80282 0.25% 17.1 125s Cutting planes: Gomory: 7 MIR: 1 Zero half: 2 Explored 77600 nodes (1318430 simplex iterations) in 126.81 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective 8.950000000000e+02, best bound 8.930000000000e+02, gap 0.2235% Gurobi 5.0.1 (linux64) logging started Fri Dec 7 10:50:31 2012