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 2820.0000000 Root relaxation: objective 6.720000e+02, 102 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 672.0000000 672.00000 0.0% - 0s Explored 0 nodes (102 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.720000000000e+02, best bound 6.720000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 17), (4, 45), (10, 33), (10, 40), (11, 32), (11, 59), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (34, 64), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (63, 74)] adding cut for [(3, 31), (3, 75), (6, 16), (6, 38), (8, 36), (9, 20), (9, 36), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 46), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (31, 49), (37, 48), (37, 70), (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 79 rows, 2850 columns and 6477 nonzeros Presolve time: 0.01s Presolved: 79 rows, 2850 columns, 6477 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.795000e+02, 116 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 679.50000 0 6 2820.00000 679.50000 75.9% - 0s Another try with MIP start H 0 0 716.0000000 679.50000 5.10% - 0s 0 0 680.00000 0 6 716.00000 680.00000 5.03% - 0s 0 0 680.00000 0 6 716.00000 680.00000 5.03% - 0s H 0 0 695.0000000 680.00000 2.16% - 0s 0 0 680.00000 0 6 695.00000 680.00000 2.16% - 0s H 0 0 680.0000000 680.00000 0.0% - 0s Cutting planes: MIR: 3 Explored 0 nodes (266 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.800000000000e+02, best bound 6.800000000000e+02, gap 0.0% adding cut for [(3, 63), (3, 75), (6, 16), (6, 38), (8, 36), (9, 20), (9, 36), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (28, 46), (28, 53), (29, 63), (30, 46), (30, 49), (31, 49), (31, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 44), (2, 74), (4, 17), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (34, 64), (34, 74), (39, 59), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73)] adding cut for [(66, 67), (12, 66), (12, 54), (15, 54), (15, 60), (60, 67)] Optimize a model with 82 rows, 2850 columns and 7278 nonzeros Presolve time: 0.01s Presolved: 82 rows, 2850 columns, 7278 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.815000e+02, 122 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 681.50000 0 6 2820.00000 681.50000 75.8% - 0s Another try with MIP start H 0 0 695.0000000 681.50000 1.94% - 0s * 0 0 0 683.0000000 683.00000 0.0% - 0s Cutting planes: Cover: 2 MIR: 4 Zero half: 2 Explored 0 nodes (140 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.830000000000e+02, best bound 6.830000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 36), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (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), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 63), (2, 74), (3, 31), (3, 75), (4, 17), (4, 45), (10, 40), (10, 41), (13, 59), (17, 64), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (31, 49), (33, 41), (33, 45), (34, 64), (34, 74), (40, 73), (59, 73)] Optimize a model with 84 rows, 2850 columns and 8334 nonzeros Presolve time: 0.01s Presolved: 84 rows, 2850 columns, 8334 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.835000e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 683.50000 0 18 2820.00000 683.50000 75.8% - 0s Another try with MIP start 0 0 685.50000 0 40 2820.00000 685.50000 75.7% - 0s 0 0 685.50000 0 49 2820.00000 685.50000 75.7% - 0s 0 0 685.50000 0 8 2820.00000 685.50000 75.7% - 0s 0 0 685.50000 0 18 2820.00000 685.50000 75.7% - 0s 0 0 685.50000 0 18 2820.00000 685.50000 75.7% - 0s H 0 0 689.0000000 685.50000 0.51% - 0s 0 0 685.50000 0 12 689.00000 685.50000 0.51% - 0s 0 0 685.50000 0 19 689.00000 685.50000 0.51% - 0s 0 0 685.50000 0 8 689.00000 685.50000 0.51% - 0s 0 0 685.58333 0 30 689.00000 685.58333 0.50% - 0s 0 0 685.66667 0 25 689.00000 685.66667 0.48% - 0s 0 0 685.66667 0 38 689.00000 685.66667 0.48% - 0s * 0 0 0 686.0000000 686.00000 0.0% - 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 19 Explored 0 nodes (369 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.860000000000e+02, best bound 6.860000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (8, 36), (8, 54), (9, 20), (9, 36), (10, 33), (10, 40), (11, 32), (11, 59), (12, 39), (12, 67), (13, 41), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (30, 49), (32, 66), (33, 45), (37, 48), (37, 70), (39, 66), (40, 73), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(34, 74), (3, 34), (3, 63), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 75), (29, 63), (22, 75), (22, 62), (23, 65), (23, 62)] adding cut for [(17, 64), (17, 50), (25, 50), (25, 57), (24, 64), (24, 57)] adding cut for [(26, 56), (26, 51), (19, 56), (19, 51)] Optimize a model with 88 rows, 2850 columns and 9226 nonzeros Presolve time: 0.01s Presolved: 88 rows, 2850 columns, 9226 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.848333e+02, 144 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 684.83333 0 30 2820.00000 684.83333 75.7% - 0s Another try with MIP start H 0 0 715.0000000 684.83333 4.22% - 0s 0 0 686.50000 0 28 715.00000 686.50000 3.99% - 0s 0 0 686.50000 0 32 715.00000 686.50000 3.99% - 0s H 0 0 708.0000000 686.50000 3.04% - 0s 0 0 686.50000 0 16 708.00000 686.50000 3.04% - 0s 0 2 686.75000 0 14 708.00000 686.75000 3.00% - 0s H 1 2 701.0000000 686.75000 2.03% 8.0 0s H 10 7 689.0000000 687.66399 0.19% 0.8 0s H 10 6 688.0000000 687.66399 0.05% 0.8 0s Cutting planes: Gomory: 7 MIR: 1 Zero half: 1 Explored 10 nodes (601 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.880000000000e+02, best bound 6.880000000000e+02, gap 0.0% adding cut for [(3, 34), (3, 75), (4, 41), (4, 45), (6, 16), (6, 38), (8, 9), (8, 36), (9, 20), (10, 40), (10, 41), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (25, 50), (33, 45), (33, 51), (34, 64), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 44), (43, 65), (42, 43), (42, 57), (23, 65), (23, 62), (24, 44), (24, 57), (29, 62), (29, 63), (63, 74)] adding cut for [(32, 56), (26, 32), (26, 56)] Optimize a model with 91 rows, 2850 columns and 10198 nonzeros Presolve time: 0.01s Presolved: 91 rows, 2850 columns, 10198 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.850000e+02, 140 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 685.00000 0 29 2820.00000 685.00000 75.7% - 0s Another try with MIP start H 0 0 722.0000000 685.00000 5.12% - 0s 0 0 686.50000 0 34 722.00000 686.50000 4.92% - 0s 0 0 686.50000 0 44 722.00000 686.50000 4.92% - 0s 0 0 686.50000 0 27 722.00000 686.50000 4.92% - 0s H 0 0 704.0000000 686.50000 2.49% - 0s 0 0 686.50000 0 30 704.00000 686.50000 2.49% - 0s 0 2 686.75000 0 26 704.00000 686.75000 2.45% - 0s H 1 2 700.0000000 686.75000 1.89% 16.0 0s H 10 7 693.0000000 687.46665 0.80% 1.6 0s * 49 30 30 691.0000000 687.66427 0.48% 14.6 0s * 55 4 15 688.0000000 687.97705 0.00% 13.8 0s Cutting planes: Gomory: 18 MIR: 6 Zero half: 18 Explored 56 nodes (1113 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.880000000000e+02, best bound 6.880000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (3, 34), (3, 75), (8, 36), (10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (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, 63), (31, 75), (32, 56), (36, 54), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (63, 74)] adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 70), (28, 46), (28, 53), (30, 46), (30, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72)] adding cut for [(4, 41), (4, 45), (33, 41), (33, 45)] Optimize a model with 94 rows, 2850 columns and 11176 nonzeros Presolve time: 0.02s Presolved: 94 rows, 2850 columns, 11176 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.865000e+02, 139 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 686.50000 0 28 2820.00000 686.50000 75.7% - 0s Another try with MIP start H 0 0 746.0000000 686.50000 7.98% - 0s 0 0 687.95000 0 57 746.00000 687.95000 7.78% - 0s H 0 0 703.0000000 687.95000 2.14% - 0s H 0 0 693.0000000 687.95000 0.73% - 0s 0 0 688.22807 0 57 693.00000 688.22807 0.69% - 0s 0 0 688.22807 0 20 693.00000 688.22807 0.69% - 0s 0 0 688.50000 0 49 693.00000 688.50000 0.65% - 0s H 0 0 692.0000000 688.50000 0.51% - 0s 0 0 688.66667 0 40 692.00000 688.66667 0.48% - 0s 0 2 689.00000 0 40 692.00000 689.00000 0.43% - 0s H 1 2 689.0000000 689.00000 0.0% 6.0 0s Explored 2 nodes (406 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.890000000000e+02, best bound 6.890000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 17), (4, 45), (10, 40), (10, 41), (11, 32), (11, 66), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (33, 41), (33, 45), (34, 64), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (63, 74)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 58), (8, 36), (20, 36), (20, 55), (21, 71), (21, 38), (22, 75), (22, 48), (61, 71), (61, 72)] adding cut for [(60, 67), (12, 67), (12, 54), (15, 60), (15, 54)] Optimize a model with 97 rows, 2850 columns and 11867 nonzeros Presolve time: 0.02s Presolved: 97 rows, 2850 columns, 11867 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.875000e+02, 159 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.50000 0 40 2820.00000 687.50000 75.6% - 0s Another try with MIP start H 0 0 738.0000000 687.50000 6.84% - 0s 0 0 688.66667 0 52 738.00000 688.66667 6.68% - 0s H 0 0 700.0000000 688.66667 1.62% - 0s H 0 0 697.0000000 688.66667 1.20% - 0s 0 0 688.86667 0 57 697.00000 688.86667 1.17% - 0s 0 0 688.86667 0 42 697.00000 688.86667 1.17% - 0s 0 0 689.16667 0 52 697.00000 689.16667 1.12% - 0s 0 0 689.33333 0 48 697.00000 689.33333 1.10% - 0s 0 0 689.50000 0 41 697.00000 689.50000 1.08% - 0s 0 0 689.54255 0 58 697.00000 689.54255 1.07% - 0s 0 0 689.66667 0 49 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 37 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 32 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 51 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 42 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 26 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 41 697.00000 689.66667 1.05% - 0s 0 0 689.66667 0 31 697.00000 689.66667 1.05% - 0s H 0 0 694.0000000 689.66667 0.62% - 0s H 0 0 690.0000000 689.66667 0.05% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 4 Explored 0 nodes (555 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.900000000000e+02, best bound 6.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 41), (4, 45), (6, 16), (6, 38), (8, 9), (8, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 59), (12, 39), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (33, 45), (36, 54), (37, 70), (37, 72), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(34, 64), (3, 34), (3, 75), (48, 49), (17, 64), (17, 52), (22, 75), (22, 48), (28, 46), (28, 53), (30, 49), (30, 46)] Optimize a model with 99 rows, 2850 columns and 13271 nonzeros Presolve time: 0.02s Presolved: 99 rows, 2850 columns, 13271 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.877000e+02, 158 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.70000 0 39 2820.00000 687.70000 75.6% - 0s Another try with MIP start H 0 0 691.0000000 687.70000 0.48% - 0s 0 0 689.00000 0 36 691.00000 689.00000 0.29% - 0s 0 0 689.00000 0 38 691.00000 689.00000 0.29% - 0s 0 0 689.50000 0 27 691.00000 689.50000 0.22% - 0s 0 0 689.77778 0 35 691.00000 689.77778 0.18% - 0s H 0 0 690.0000000 689.77778 0.03% - 0s Cutting planes: Gomory: 1 Clique: 1 MIR: 1 Zero half: 2 Explored 0 nodes (351 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.900000000000e+02, best bound 6.900000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (36, 54), (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 [(2, 74), (2, 34), (3, 34), (3, 31), (6, 49), (6, 30), (9, 47), (9, 53), (48, 49), (22, 75), (22, 48), (28, 46), (28, 53), (29, 75), (29, 63), (30, 46), (63, 74)] Optimize a model with 101 rows, 2850 columns and 14127 nonzeros Presolve time: 0.02s Presolved: 101 rows, 2850 columns, 14127 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.877000e+02, 167 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.70000 0 41 2820.00000 687.70000 75.6% - 0s Another try with MIP start H 0 0 739.0000000 687.70000 6.94% - 0s 0 0 689.00000 0 36 739.00000 689.00000 6.77% - 0s 0 0 689.22917 0 67 739.00000 689.22917 6.73% - 0s H 0 0 691.0000000 689.22917 0.26% - 0s 0 0 689.44304 0 65 691.00000 689.44304 0.23% - 0s 0 0 689.44304 0 34 691.00000 689.44304 0.23% - 0s 0 0 689.62500 0 41 691.00000 689.62500 0.20% - 0s H 0 0 690.0000000 689.62500 0.05% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 3 Explored 0 nodes (346 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.900000000000e+02, best bound 6.900000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (13, 59), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (32, 56), (33, 45), (33, 51), (37, 70), (37, 72), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 74), (2, 34), (3, 34), (3, 31), (8, 36), (9, 36), (9, 53), (48, 49), (22, 75), (22, 48), (28, 46), (28, 53), (29, 75), (29, 63), (30, 46), (30, 49), (63, 74)] Optimize a model with 103 rows, 2850 columns and 15361 nonzeros Presolve time: 0.02s Presolved: 103 rows, 2850 columns, 15361 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.877000e+02, 183 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.70000 0 37 2820.00000 687.70000 75.6% - 0s Another try with MIP start H 0 0 739.0000000 687.70000 6.94% - 0s 0 0 689.12500 0 63 739.00000 689.12500 6.75% - 0s H 0 0 703.0000000 689.12500 1.97% - 0s H 0 0 698.0000000 689.12500 1.27% - 0s 0 0 689.29570 0 71 698.00000 689.29570 1.25% - 0s 0 0 689.29570 0 37 698.00000 689.29570 1.25% - 0s 0 0 689.62500 0 64 698.00000 689.62500 1.20% - 0s 0 0 689.71429 0 69 698.00000 689.71429 1.19% - 0s 0 0 689.94048 0 66 698.00000 689.94048 1.15% - 0s 0 0 690.02203 0 72 698.00000 690.02203 1.14% - 0s 0 0 690.08772 0 71 698.00000 690.08772 1.13% - 0s 0 0 690.09189 0 75 698.00000 690.09189 1.13% - 0s 0 0 690.09192 0 77 698.00000 690.09192 1.13% - 0s 0 2 690.22381 0 77 698.00000 690.22381 1.11% - 0s * 11 3 10 691.0000000 690.80952 0.03% 7.5 0s Cutting planes: Gomory: 1 MIR: 5 Zero half: 11 Explored 12 nodes (570 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.910000000000e+02, best bound 6.910000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (8, 54), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (13, 59), (15, 54), (15, 60), (17, 50), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (66, 67)] adding cut for [(34, 64), (3, 34), (3, 74), (43, 65), (43, 44), (2, 74), (2, 63), (42, 44), (42, 57), (23, 65), (23, 62), (24, 64), (24, 57), (29, 62), (29, 63)] adding cut for [(6, 16), (6, 30), (9, 36), (9, 53), (16, 58), (20, 36), (20, 55), (14, 55), (14, 58), (28, 46), (28, 53), (30, 46)] adding cut for [(37, 38), (37, 70), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72)] adding cut for [(48, 49), (22, 48), (22, 75), (31, 49), (31, 75)] Optimize a model with 108 rows, 2850 columns and 15863 nonzeros Presolve time: 0.02s Presolved: 108 rows, 2850 columns, 15863 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.877000e+02, 177 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.70000 0 37 2820.00000 687.70000 75.6% - 0s Another try with MIP start H 0 0 746.0000000 687.70000 7.82% - 0s 0 0 689.12500 0 57 746.00000 689.12500 7.62% - 0s 0 0 689.29570 0 72 746.00000 689.29570 7.60% - 0s H 0 0 693.0000000 689.29570 0.53% - 0s 0 0 689.62500 0 68 693.00000 689.62500 0.49% - 0s 0 0 689.62500 0 41 693.00000 689.62500 0.49% - 0s 0 0 689.96429 0 55 693.00000 689.96429 0.44% - 0s 0 0 690.01163 0 66 693.00000 690.01163 0.43% - 0s 0 0 690.01829 0 73 693.00000 690.01829 0.43% - 0s 0 0 690.06250 0 66 693.00000 690.06250 0.42% - 0s 0 0 690.06250 0 65 693.00000 690.06250 0.42% - 0s 0 0 690.09623 0 71 693.00000 690.09623 0.42% - 0s 0 0 690.09694 0 74 693.00000 690.09694 0.42% - 0s 0 0 690.12871 0 70 693.00000 690.12871 0.41% - 0s 0 0 690.16260 0 69 693.00000 690.16260 0.41% - 0s 0 0 690.16260 0 69 693.00000 690.16260 0.41% - 0s 0 0 690.16490 0 73 693.00000 690.16490 0.41% - 0s 0 0 690.16490 0 72 693.00000 690.16490 0.41% - 0s H 0 0 691.0000000 690.16490 0.12% - 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 6 Mod-K: 1 Explored 0 nodes (471 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.910000000000e+02, best bound 6.910000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (8, 36), (9, 47), (9, 53), (12, 39), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (28, 46), (28, 53), (29, 75), (30, 46), (36, 54), (37, 48), (37, 70), (39, 66), (49, 75), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 44), (2, 74), (3, 34), (3, 63), (4, 17), (4, 45), (10, 40), (10, 41), (11, 32), (11, 59), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 41), (33, 45), (34, 64), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (63, 74)] Optimize a model with 110 rows, 2850 columns and 16864 nonzeros Presolve time: 0.02s Presolved: 110 rows, 2850 columns, 16864 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.877000e+02, 187 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 687.70000 0 41 2820.00000 687.70000 75.6% - 0s Another try with MIP start H 0 0 755.0000000 687.70000 8.91% - 0s 0 0 689.40909 0 53 755.00000 689.40909 8.69% - 0s H 0 0 703.0000000 689.40909 1.93% - 0s H 0 0 701.0000000 689.40909 1.65% - 0s 0 0 689.55072 0 68 701.00000 689.55072 1.63% - 0s 0 0 689.55072 0 41 701.00000 689.55072 1.63% - 0s 0 0 689.83951 0 63 701.00000 689.83951 1.59% - 0s 0 0 690.12245 0 60 701.00000 690.12245 1.55% - 0s 0 0 690.12245 0 67 701.00000 690.12245 1.55% - 0s 0 0 690.13846 0 71 701.00000 690.13846 1.55% - 0s H 0 0 695.0000000 690.13846 0.70% - 0s 0 0 690.14248 0 76 695.00000 690.14248 0.70% - 0s 0 2 690.36036 0 76 695.00000 690.36036 0.67% - 0s H 1 2 693.0000000 690.36036 0.38% 0.0 0s H 10 7 691.0000000 690.43174 0.08% 0.0 0s Cutting planes: Gomory: 7 MIR: 1 Explored 10 nodes (738 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.910000000000e+02, best bound 6.910000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 31), (3, 34), (4, 25), (4, 45), (6, 30), (6, 49), (8, 36), (9, 20), (9, 53), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (33, 45), (33, 51), (34, 74), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 111 rows, 2850 columns and 18575 nonzeros Presolve time: 0.02s Presolved: 111 rows, 2850 columns, 18575 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.893571e+02, 175 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.35714 0 52 2820.00000 689.35714 75.6% - 0s Another try with MIP start H 0 0 717.0000000 689.35714 3.86% - 0s 0 0 690.50000 0 26 717.00000 690.50000 3.70% - 0s 0 0 690.50000 0 52 717.00000 690.50000 3.70% - 0s 0 0 690.50000 0 32 717.00000 690.50000 3.70% - 0s 0 0 690.96078 0 71 717.00000 690.96078 3.63% - 0s 0 0 691.25926 0 68 717.00000 691.25926 3.59% - 0s 0 0 691.33333 0 65 717.00000 691.33333 3.58% - 0s 0 0 691.33333 0 67 717.00000 691.33333 3.58% - 0s 0 0 691.33333 0 67 717.00000 691.33333 3.58% - 0s 0 0 691.33333 0 67 717.00000 691.33333 3.58% - 0s H 0 0 706.0000000 691.33333 2.08% - 0s H 0 0 692.0000000 691.33333 0.10% - 0s Cutting planes: MIR: 4 Zero half: 4 Explored 0 nodes (477 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.920000000000e+02, best bound 6.920000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (3, 75), (9, 20), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (29, 63), (29, 75), (34, 64), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (36, 54), (39, 66), (39, 59), (8, 36), (11, 32), (11, 59), (12, 67), (12, 60), (15, 54), (15, 60), (17, 50), (17, 52), (25, 50), (26, 51), (26, 56)] Optimize a model with 113 rows, 2850 columns and 19261 nonzeros Presolve time: 0.02s Presolved: 113 rows, 2850 columns, 19261 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.894256e+02, 193 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.42560 0 54 2820.00000 689.42560 75.6% - 0s Another try with MIP start H 0 0 693.0000000 689.42560 0.52% - 0s H 0 0 692.0000000 689.42560 0.37% - 0s 0 0 690.56716 0 65 692.00000 690.56716 0.21% - 0s 0 0 690.56716 0 48 692.00000 690.56716 0.21% - 0s 0 0 cutoff 0 692.00000 691.00069 0.14% - 0s Cutting planes: Gomory: 4 Implied bound: 1 Clique: 14 Zero half: 3 Explored 0 nodes (329 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.920000000000e+02, best bound 6.920000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (8, 36), (11, 32), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 74), (36, 54), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67)] adding cut for [(3, 63), (3, 75), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 46), (28, 53), (29, 62), (29, 63), (30, 46), (30, 49), (35, 53), (37, 48), (37, 70), (49, 75), (61, 71), (61, 72), (70, 72)] Optimize a model with 115 rows, 2850 columns and 20074 nonzeros Presolve time: 0.02s Presolved: 115 rows, 2850 columns, 20074 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.894256e+02, 189 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.42560 0 54 2820.00000 689.42560 75.6% - 0s Another try with MIP start H 0 0 750.0000000 689.42560 8.08% - 0s 0 0 690.56716 0 65 750.00000 690.56716 7.92% - 0s H 0 0 696.0000000 690.56716 0.78% - 0s 0 0 690.85714 0 67 696.00000 690.85714 0.74% - 0s 0 0 690.85714 0 54 696.00000 690.85714 0.74% - 0s 0 0 691.00000 0 60 696.00000 691.00000 0.72% - 0s 0 0 691.29148 0 70 696.00000 691.29148 0.68% - 0s 0 0 691.29148 0 73 696.00000 691.29148 0.68% - 0s 0 0 691.29730 0 70 696.00000 691.29730 0.68% - 0s 0 0 691.29730 0 73 696.00000 691.29730 0.68% - 0s 0 0 691.39024 0 78 696.00000 691.39024 0.66% - 0s 0 0 691.42857 0 72 696.00000 691.42857 0.66% - 0s 0 0 691.42857 0 74 696.00000 691.42857 0.66% - 0s 0 0 691.44186 0 74 696.00000 691.44186 0.65% - 0s 0 0 691.45178 0 85 696.00000 691.45178 0.65% - 0s 0 0 691.45323 0 83 696.00000 691.45323 0.65% - 0s 0 0 691.45351 0 85 696.00000 691.45351 0.65% - 0s 0 0 691.45351 0 84 696.00000 691.45351 0.65% - 0s H 0 0 694.0000000 691.45351 0.37% - 0s 0 1 691.46023 0 75 694.00000 691.46023 0.37% - 0s * 12 2 10 693.0000000 692.00000 0.14% 8.3 0s * 14 0 4 692.0000000 692.00000 0.0% 7.8 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 14 Explored 15 nodes (643 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.920000000000e+02, best bound 6.920000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 41), (4, 45), (6, 30), (6, 49), (9, 20), (9, 36), (10, 26), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (13, 41), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (26, 56), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (31, 49), (31, 75), (32, 73), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(24, 57), (24, 50), (25, 57), (25, 50)] Optimize a model with 117 rows, 2850 columns and 21620 nonzeros Presolve time: 0.02s Presolved: 117 rows, 2850 columns, 21620 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.897941e+02, 190 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.79412 0 63 2820.00000 689.79412 75.5% - 0s Another try with MIP start H 0 0 699.0000000 689.79412 1.32% - 0s H 0 0 697.0000000 689.79412 1.03% - 0s H 0 0 694.0000000 689.79412 0.61% - 0s 0 0 690.50121 0 76 694.00000 690.50121 0.50% - 0s 0 0 690.50121 0 63 694.00000 690.50121 0.50% - 0s 0 0 690.62338 0 69 694.00000 690.62338 0.49% - 0s 0 0 691.25000 0 55 694.00000 691.25000 0.40% - 0s 0 0 691.39181 0 68 694.00000 691.39181 0.38% - 0s 0 0 691.40940 0 73 694.00000 691.40940 0.37% - 0s 0 0 691.53382 0 74 694.00000 691.53382 0.36% - 0s 0 0 691.53382 0 73 694.00000 691.53382 0.36% - 0s 0 1 691.54713 0 73 694.00000 691.54713 0.35% - 0s * 22 10 16 693.0000000 692.37751 0.09% 19.6 0s Cutting planes: Gomory: 9 Clique: 3 MIR: 2 Zero half: 10 Explored 23 nodes (897 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.930000000000e+02, best bound 6.930000000000e+02, gap 0.0% adding cut for [(3, 63), (3, 75), (4, 41), (4, 45), (8, 36), (10, 33), (10, 40), (11, 32), (11, 59), (12, 39), (12, 54), (13, 41), (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, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (33, 45), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 118 rows, 2850 columns and 22946 nonzeros Presolve time: 0.02s Presolved: 118 rows, 2850 columns, 22946 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.897941e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.79412 0 63 2820.00000 689.79412 75.5% - 0s Another try with MIP start H 0 0 694.0000000 689.79412 0.61% - 0s 0 0 690.50121 0 76 694.00000 690.50121 0.50% - 0s 0 0 690.50121 0 63 694.00000 690.50121 0.50% - 0s 0 0 690.62338 0 69 694.00000 690.62338 0.49% - 0s 0 0 691.25000 0 62 694.00000 691.25000 0.40% - 0s 0 0 691.41014 0 67 694.00000 691.41014 0.37% - 0s 0 1 691.51429 0 67 694.00000 691.51429 0.36% - 0s * 20 9 14 693.0000000 692.94036 0.01% 18.4 0s Cutting planes: Gomory: 10 MIR: 1 Zero half: 2 Explored 21 nodes (866 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.930000000000e+02, best bound 6.930000000000e+02, gap 0.0% adding cut for [(3, 31), (3, 34), (6, 16), (6, 38), (11, 32), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (30, 46), (30, 49), (32, 56), (34, 64), (35, 53), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 44), (43, 65), (42, 43), (42, 57), (22, 75), (22, 62), (23, 65), (23, 62), (24, 44), (24, 57), (29, 75), (29, 63), (63, 74)] Optimize a model with 120 rows, 2850 columns and 23898 nonzeros Presolve time: 0.03s Presolved: 120 rows, 2850 columns, 23898 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.898636e+02, 193 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.86364 0 69 2820.00000 689.86364 75.5% - 0s Another try with MIP start H 0 0 703.0000000 689.86364 1.87% - 0s H 0 0 697.0000000 689.86364 1.02% - 0s 0 0 690.54876 0 81 697.00000 690.54876 0.93% - 0s 0 0 690.54876 0 69 697.00000 690.54876 0.93% - 0s 0 0 691.25000 0 56 697.00000 691.25000 0.82% - 0s 0 0 691.39883 0 72 697.00000 691.39883 0.80% - 0s 0 0 691.46241 0 78 697.00000 691.46241 0.79% - 0s 0 0 691.50185 0 84 697.00000 691.50185 0.79% - 0s 0 0 691.57286 0 77 697.00000 691.57286 0.78% - 0s 0 0 691.58251 0 86 697.00000 691.58251 0.78% - 0s 0 0 691.59538 0 84 697.00000 691.59538 0.78% - 0s 0 0 691.59752 0 88 697.00000 691.59752 0.78% - 0s 0 0 691.59752 0 86 697.00000 691.59752 0.78% - 0s H 0 0 694.0000000 691.59752 0.35% - 0s 0 1 691.64935 0 82 694.00000 691.64935 0.34% - 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 11 nodes (664 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.940000000000e+02, best bound 6.940000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (34, 64), (34, 74), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (36, 54), (39, 66), (39, 59), (8, 36), (10, 40), (10, 26), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (15, 54), (15, 60), (40, 73), (26, 56), (60, 67)] Optimize a model with 122 rows, 2850 columns and 24717 nonzeros Presolve time: 0.03s Presolved: 122 rows, 2850 columns, 24717 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.898636e+02, 187 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 689.86364 0 69 2820.00000 689.86364 75.5% - 0s Another try with MIP start H 0 0 695.0000000 689.86364 0.74% - 0s 0 0 690.54876 0 79 695.00000 690.54876 0.64% - 0s 0 0 690.54876 0 69 695.00000 690.54876 0.64% - 0s 0 0 690.88690 0 79 695.00000 690.88690 0.59% - 0s 0 0 691.30357 0 64 695.00000 691.30357 0.53% - 0s 0 0 691.58156 0 77 695.00000 691.58156 0.49% - 0s 0 1 691.68557 0 77 695.00000 691.68557 0.48% - 0s * 33 7 26 694.0000000 692.66667 0.19% 18.4 0s Cutting planes: Gomory: 12 MIR: 5 Zero half: 6 Explored 45 nodes (1084 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.940000000000e+02, best bound 6.940000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 31), (3, 63), (6, 16), (6, 38), (11, 32), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 62), (30, 46), (30, 49), (31, 75), (32, 56), (34, 64), (34, 74), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 123 rows, 2850 columns and 26257 nonzeros Presolve time: 0.03s Presolved: 123 rows, 2850 columns, 26257 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.901702e+02, 199 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.17021 0 67 2820.00000 690.17021 75.5% - 0s Another try with MIP start H 0 0 698.0000000 690.17021 1.12% - 0s H 0 0 697.0000000 690.17021 0.98% - 0s 0 0 691.35912 0 77 697.00000 691.35912 0.81% - 0s 0 0 691.35912 0 67 697.00000 691.35912 0.81% - 0s 0 0 691.72168 0 68 697.00000 691.72168 0.76% - 0s 0 0 691.78991 0 80 697.00000 691.78991 0.75% - 0s 0 0 691.79371 0 87 697.00000 691.79371 0.75% - 0s 0 0 691.85965 0 77 697.00000 691.85965 0.74% - 0s 0 0 691.86964 0 86 697.00000 691.86964 0.74% - 0s 0 0 691.89823 0 88 697.00000 691.89823 0.73% - 0s 0 0 691.90039 0 88 697.00000 691.90039 0.73% - 0s 0 0 691.90568 0 83 697.00000 691.90568 0.73% - 0s 0 0 691.90735 0 86 697.00000 691.90735 0.73% - 0s 0 0 691.90735 0 86 697.00000 691.90735 0.73% - 0s H 0 0 695.0000000 691.90735 0.44% - 0s 0 2 691.94166 0 86 695.00000 691.94166 0.44% - 0s * 16 6 15 694.0000000 692.75438 0.18% 9.6 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 9 Explored 23 nodes (719 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.940000000000e+02, best bound 6.940000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 41), (4, 45), (6, 16), (6, 38), (9, 20), (9, 47), (10, 33), (10, 40), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(36, 54), (39, 66), (8, 36), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (15, 54), (15, 60), (59, 73), (60, 67)] Optimize a model with 125 rows, 2850 columns and 27155 nonzeros Presolve time: 0.03s Presolved: 125 rows, 2850 columns, 27155 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.902617e+02, 198 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.26168 0 66 2820.00000 690.26168 75.5% - 0s Another try with MIP start H 0 0 699.0000000 690.26168 1.25% - 0s 0 0 691.43837 0 76 699.00000 691.43837 1.08% - 0s 0 0 691.43837 0 66 699.00000 691.43837 1.08% - 0s 0 0 691.45111 0 78 699.00000 691.45111 1.08% - 0s 0 0 691.80386 0 79 699.00000 691.80386 1.03% - 0s 0 0 691.81393 0 84 699.00000 691.81393 1.03% - 0s 0 0 691.81907 0 86 699.00000 691.81907 1.03% - 0s 0 0 691.82879 0 82 699.00000 691.82879 1.03% - 0s H 0 0 696.0000000 691.82879 0.60% - 0s 0 0 691.83253 0 87 696.00000 691.83253 0.60% - 0s 0 2 692.17514 0 87 696.00000 692.17514 0.55% - 0s * 40 9 27 695.0000000 693.00000 0.29% 19.2 0s * 53 0 22 694.0000000 694.00000 0.0% 16.3 0s Cutting planes: Gomory: 8 MIR: 1 Zero half: 10 Explored 54 nodes (1393 simplex iterations) in 0.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.940000000000e+02, best bound 6.940000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (8, 54), (10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 74), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67)] adding cut for [(3, 63), (3, 75), (6, 16), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 46), (28, 53), (29, 62), (29, 63), (30, 46), (30, 49), (37, 48), (37, 70), (49, 75), (61, 71), (61, 72), (70, 72)] Optimize a model with 127 rows, 2850 columns and 28029 nonzeros Presolve time: 0.03s Presolved: 127 rows, 2850 columns, 28029 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.902726e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.27259 0 69 2820.00000 690.27259 75.5% - 0s Another try with MIP start H 0 0 695.0000000 690.27259 0.68% - 0s 0 0 691.43837 0 74 695.00000 691.43837 0.51% - 0s 0 0 691.43837 0 72 695.00000 691.43837 0.51% - 0s 0 0 691.43837 0 76 695.00000 691.43837 0.51% - 0s 0 0 691.72406 0 79 695.00000 691.72406 0.47% - 0s 0 0 691.80386 0 79 695.00000 691.80386 0.46% - 0s 0 0 691.81213 0 81 695.00000 691.81213 0.46% - 0s 0 0 691.81670 0 84 695.00000 691.81670 0.46% - 0s 0 0 691.81795 0 85 695.00000 691.81795 0.46% - 0s 0 2 691.88459 0 85 695.00000 691.88459 0.45% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 9 Explored 75 nodes (1127 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.950000000000e+02, best bound 6.950000000000e+02, gap 0.0% adding cut for [(10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (37, 48), (37, 70), (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, 34), (3, 34), (6, 49), (6, 30), (49, 75), (35, 53), (28, 46), (28, 53), (29, 75), (29, 63), (30, 46), (63, 74)] Optimize a model with 129 rows, 2850 columns and 29023 nonzeros Presolve time: 0.03s Presolved: 129 rows, 2850 columns, 29023 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 202 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 701.0000000 690.71054 1.47% - 0s 0 0 691.93716 0 71 701.00000 691.93716 1.29% - 0s 0 0 691.93716 0 71 701.00000 691.93716 1.29% - 0s 0 0 692.13242 0 61 701.00000 692.13242 1.26% - 0s H 0 0 700.0000000 692.13242 1.12% - 0s 0 0 692.15656 0 69 700.00000 692.15656 1.12% - 0s 0 2 692.65658 0 69 700.00000 692.65658 1.05% - 0s H 1 2 698.0000000 692.65658 0.77% 0.0 0s * 29 20 21 696.0000000 693.01235 0.43% 22.9 0s * 51 10 20 695.0000000 693.05137 0.28% 16.8 0s Cutting planes: Gomory: 21 MIR: 5 Zero half: 7 Explored 70 nodes (1497 simplex iterations) in 0.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.950000000000e+02, best bound 6.950000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (8, 36), (9, 20), (9, 47), (10, 26), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (32, 73), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 64), (2, 34), (3, 74), (3, 34), (49, 75), (17, 64), (17, 52), (28, 46), (28, 53), (29, 75), (29, 63), (30, 49), (30, 46), (63, 74)] Optimize a model with 131 rows, 2850 columns and 30304 nonzeros Presolve time: 0.04s Presolved: 131 rows, 2850 columns, 30304 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 192 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 700.0000000 690.71054 1.33% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 692.16949 0 64 700.00000 692.16949 1.12% - 0s 0 0 692.20211 0 76 700.00000 692.20211 1.11% - 0s 0 0 692.23782 0 84 700.00000 692.23782 1.11% - 0s 0 0 692.23782 0 86 700.00000 692.23782 1.11% - 0s 0 0 692.38104 0 80 700.00000 692.38104 1.09% - 0s H 0 0 699.0000000 692.38104 0.95% - 0s 0 0 692.40052 0 84 699.00000 692.40052 0.94% - 0s 0 2 692.82809 0 84 699.00000 692.82809 0.88% - 0s H 9 7 698.0000000 692.82809 0.74% 0.0 0s * 119 36 43 697.0000000 693.29525 0.53% 12.9 0s * 183 33 30 696.0000000 694.00000 0.29% 11.7 0s * 195 0 22 695.0000000 695.00000 0.0% 11.3 0s Cutting planes: Gomory: 15 MIR: 3 Zero half: 6 Explored 196 nodes (2689 simplex iterations) in 0.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.950000000000e+02, best bound 6.950000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 36), (9, 20), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (32, 73), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 132 rows, 2850 columns and 31385 nonzeros Presolve time: 0.04s Presolved: 132 rows, 2850 columns, 31385 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 179 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 698.0000000 690.71054 1.04% - 0s 0 0 691.93716 0 71 698.00000 691.93716 0.87% - 0s 0 0 691.93716 0 71 698.00000 691.93716 0.87% - 0s 0 0 692.16949 0 64 698.00000 692.16949 0.84% - 0s 0 0 692.20187 0 74 698.00000 692.20187 0.83% - 0s 0 0 692.23954 0 75 698.00000 692.23954 0.83% - 0s 0 0 692.23954 0 78 698.00000 692.23954 0.83% - 0s 0 0 692.25171 0 83 698.00000 692.25171 0.82% - 0s 0 0 692.26271 0 88 698.00000 692.26271 0.82% - 0s 0 0 692.41051 0 79 698.00000 692.41051 0.80% - 0s 0 2 692.82489 0 79 698.00000 692.82489 0.74% - 0s H 11 9 697.0000000 692.82489 0.60% 0.0 0s * 301 20 27 696.0000000 694.62745 0.20% 11.3 0s Cutting planes: Gomory: 15 MIR: 6 Zero half: 13 Explored 327 nodes (4005 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.960000000000e+02, best bound 6.960000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 74), (8, 36), (11, 32), (11, 59), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (36, 54), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 38), (6, 49), (49, 75), (21, 38), (21, 71), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 134 rows, 2850 columns and 31916 nonzeros Presolve time: 0.04s Presolved: 134 rows, 2850 columns, 31916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 181 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 700.0000000 690.71054 1.33% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 692.16949 0 64 700.00000 692.16949 1.12% - 0s 0 0 692.20211 0 76 700.00000 692.20211 1.11% - 0s 0 0 692.23954 0 74 700.00000 692.23954 1.11% - 0s 0 0 692.23954 0 78 700.00000 692.23954 1.11% - 0s 0 0 692.25370 0 80 700.00000 692.25370 1.11% - 0s 0 0 692.25370 0 84 700.00000 692.25370 1.11% - 0s 0 0 692.27159 0 86 700.00000 692.27159 1.10% - 0s 0 0 692.27793 0 95 700.00000 692.27793 1.10% - 0s 0 0 692.28398 0 95 700.00000 692.28398 1.10% - 0s 0 2 692.35413 0 95 700.00000 692.35413 1.09% - 0s * 29 27 24 698.0000000 692.92983 0.73% 16.1 0s * 32 22 25 697.0000000 692.92983 0.58% 15.1 0s H 441 23 696.0000000 694.58333 0.20% 10.1 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 15 Explored 467 nodes (5023 simplex iterations) in 0.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.960000000000e+02, best bound 6.960000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 36), (9, 20), (9, 53), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (31, 49), (32, 40), (32, 73), (33, 51), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 135 rows, 2850 columns and 33347 nonzeros Presolve time: 0.04s Presolved: 135 rows, 2850 columns, 33347 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 181 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 700.0000000 690.71054 1.33% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 692.27759 0 77 700.00000 692.27759 1.10% - 0s 0 0 692.28676 0 77 700.00000 692.28676 1.10% - 0s 0 0 692.29151 0 82 700.00000 692.29151 1.10% - 0s 0 0 692.29151 0 84 700.00000 692.29151 1.10% - 0s 0 0 692.30736 0 86 700.00000 692.30736 1.10% - 0s 0 0 692.30736 0 88 700.00000 692.30736 1.10% - 0s 0 0 692.31824 0 94 700.00000 692.31824 1.10% - 0s 0 0 692.31824 0 96 700.00000 692.31824 1.10% - 0s 0 0 692.34386 0 82 700.00000 692.34386 1.09% - 0s 0 0 692.34454 0 92 700.00000 692.34454 1.09% - 0s 0 0 692.35339 0 87 700.00000 692.35339 1.09% - 0s 0 0 692.35431 0 87 700.00000 692.35431 1.09% - 0s 0 2 692.40264 0 87 700.00000 692.40264 1.09% - 0s * 14 10 12 697.0000000 692.72818 0.61% 12.4 0s * 257 19 18 696.0000000 694.46154 0.22% 10.6 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 14 Explored 285 nodes (3413 simplex iterations) in 0.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.960000000000e+02, best bound 6.960000000000e+02, gap 0.0% adding cut for [(8, 36), (10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 64), (36, 54), (39, 66), (40, 73), (50, 57), (59, 73), (60, 67)] adding cut for [(2, 44), (2, 74), (3, 75), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (31, 49), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 137 rows, 2850 columns and 33923 nonzeros Presolve time: 0.04s Presolved: 137 rows, 2850 columns, 33923 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 196 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 751.0000000 690.71054 8.03% - 0s 0 0 691.93716 0 71 751.00000 691.93716 7.86% - 0s H 0 0 704.0000000 691.93716 1.71% - 0s 0 0 692.27759 0 79 704.00000 692.27759 1.67% - 0s 0 0 692.27759 0 71 704.00000 692.27759 1.67% - 0s 0 0 692.27900 0 70 704.00000 692.27900 1.66% - 0s 0 0 692.27900 0 74 704.00000 692.27900 1.66% - 0s 0 0 692.29231 0 74 704.00000 692.29231 1.66% - 0s 0 0 692.29231 0 78 704.00000 692.29231 1.66% - 0s 0 0 692.30221 0 74 704.00000 692.30221 1.66% - 0s 0 0 692.31179 0 79 704.00000 692.31179 1.66% - 0s 0 0 692.31179 0 83 704.00000 692.31179 1.66% - 0s 0 0 692.32435 0 77 704.00000 692.32435 1.66% - 0s 0 0 692.33108 0 81 704.00000 692.33108 1.66% - 0s 0 0 692.34451 0 78 704.00000 692.34451 1.66% - 0s 0 0 692.34451 0 79 704.00000 692.34451 1.66% - 0s 0 0 692.35299 0 87 704.00000 692.35299 1.65% - 0s 0 0 692.35299 0 91 704.00000 692.35299 1.65% - 0s 0 0 692.39316 0 88 704.00000 692.39316 1.65% - 0s 0 0 692.40487 0 85 704.00000 692.40487 1.65% - 0s 0 0 692.40753 0 93 704.00000 692.40753 1.65% - 0s H 0 0 699.0000000 692.40753 0.94% - 0s 0 2 692.41340 0 93 699.00000 692.41340 0.94% - 0s * 130 77 19 698.0000000 693.29043 0.67% 10.4 0s * 228 70 21 697.0000000 693.65618 0.48% 10.3 0s Cutting planes: Gomory: 2 MIR: 5 Zero half: 8 Mod-K: 1 Explored 712 nodes (7494 simplex iterations) in 1.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (8, 36), (9, 20), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 30), (16, 58), (17, 50), (17, 64), (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, 62), (29, 75), (30, 49), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 138 rows, 2850 columns and 35051 nonzeros Presolve time: 0.04s Presolved: 138 rows, 2850 columns, 35051 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 191 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 703.0000000 690.71054 1.75% - 0s 0 0 691.93716 0 71 703.00000 691.93716 1.57% - 0s 0 0 691.93716 0 71 703.00000 691.93716 1.57% - 0s 0 0 692.27900 0 70 703.00000 692.27900 1.53% - 0s 0 0 692.27900 0 74 703.00000 692.27900 1.53% - 0s 0 0 692.29231 0 74 703.00000 692.29231 1.52% - 0s 0 0 692.29231 0 78 703.00000 692.29231 1.52% - 0s 0 0 692.30461 0 76 703.00000 692.30461 1.52% - 0s 0 0 692.31229 0 81 703.00000 692.31229 1.52% - 0s 0 0 692.31536 0 86 703.00000 692.31536 1.52% - 0s 0 0 692.31610 0 87 703.00000 692.31610 1.52% - 0s 0 0 692.31610 0 87 703.00000 692.31610 1.52% - 0s H 0 0 700.0000000 692.31610 1.10% - 0s H 0 0 699.0000000 692.31610 0.96% - 0s 0 2 692.32201 0 87 699.00000 692.32201 0.96% - 0s H 84 43 698.0000000 693.07143 0.71% 10.6 0s * 265 78 7 697.0000000 694.05960 0.42% 10.1 0s Cutting planes: Gomory: 2 MIR: 4 Zero half: 6 Explored 655 nodes (6761 simplex iterations) in 0.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (6, 16), (6, 38), (9, 20), (9, 36), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (30, 46), (30, 49), (32, 56), (32, 73), (34, 74), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(3, 31), (3, 63), (22, 75), (22, 62), (31, 75), (29, 62), (29, 63)] Optimize a model with 140 rows, 2850 columns and 36200 nonzeros Presolve time: 0.04s Presolved: 140 rows, 2850 columns, 36200 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907105e+02, 187 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.71054 0 71 2820.00000 690.71054 75.5% - 0s Another try with MIP start H 0 0 700.0000000 690.71054 1.33% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 691.93716 0 71 700.00000 691.93716 1.15% - 0s 0 0 692.27900 0 70 700.00000 692.27900 1.10% - 0s H 0 0 699.0000000 692.27900 0.96% - 0s 0 0 692.27900 0 74 699.00000 692.27900 0.96% - 0s 0 2 692.77767 0 74 699.00000 692.77767 0.89% - 0s * 59 23 39 697.0000000 693.36356 0.52% 19.1 0s Cutting planes: Gomory: 19 MIR: 10 Zero half: 6 Explored 490 nodes (5802 simplex iterations) in 1.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 75), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (29, 63), (29, 75), (31, 49), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(4, 17), (4, 45), (8, 36), (10, 33), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (13, 41), (15, 54), (15, 60), (17, 50), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (36, 54), (39, 59), (39, 66), (40, 73), (41, 73), (66, 67)] Optimize a model with 142 rows, 2850 columns and 36902 nonzeros Presolve time: 0.04s Presolved: 142 rows, 2850 columns, 36902 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907595e+02, 197 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.75953 0 75 2820.00000 690.75953 75.5% - 0s Another try with MIP start H 0 0 701.0000000 690.75953 1.46% - 0s 0 0 692.24580 0 78 701.00000 692.24580 1.25% - 0s 0 0 692.24580 0 75 701.00000 692.24580 1.25% - 0s 0 0 692.49218 0 73 701.00000 692.49218 1.21% - 0s 0 0 692.52375 0 76 701.00000 692.52375 1.21% - 0s 0 0 692.52375 0 81 701.00000 692.52375 1.21% - 0s 0 0 692.53138 0 79 701.00000 692.53138 1.21% - 0s 0 0 692.53138 0 84 701.00000 692.53138 1.21% - 0s 0 0 692.56130 0 87 701.00000 692.56130 1.20% - 0s 0 0 692.58715 0 95 701.00000 692.58715 1.20% - 0s 0 0 692.58942 0 96 701.00000 692.58942 1.20% - 0s 0 0 692.59698 0 91 701.00000 692.59698 1.20% - 0s 0 0 692.59796 0 93 701.00000 692.59796 1.20% - 0s 0 0 692.59796 0 93 701.00000 692.59796 1.20% - 0s 0 2 692.59809 0 93 701.00000 692.59809 1.20% - 0s * 31 20 26 699.0000000 693.25979 0.82% 12.7 0s * 105 61 19 698.0000000 693.57756 0.63% 11.7 0s * 117 40 12 697.0000000 693.58910 0.49% 11.2 0s Cutting planes: Gomory: 3 MIR: 7 Zero half: 15 Explored 460 nodes (4919 simplex iterations) in 0.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 49), (6, 58), (8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (30, 46), (30, 49), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 143 rows, 2850 columns and 37805 nonzeros Presolve time: 0.04s Presolved: 143 rows, 2850 columns, 37805 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.907595e+02, 173 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 690.75953 0 75 2820.00000 690.75953 75.5% - 0s Another try with MIP start H 0 0 699.0000000 690.75953 1.18% - 0s 0 0 692.24580 0 78 699.00000 692.24580 0.97% - 0s 0 0 692.24580 0 75 699.00000 692.24580 0.97% - 0s 0 0 692.49218 0 73 699.00000 692.49218 0.93% - 0s 0 0 692.52375 0 80 699.00000 692.52375 0.93% - 0s 0 2 692.93501 0 80 699.00000 692.93501 0.87% - 0s * 107 26 32 697.0000000 694.12776 0.41% 17.0 0s Cutting planes: Gomory: 18 MIR: 5 Zero half: 12 Explored 337 nodes (4594 simplex iterations) in 0.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (10, 32), (10, 40), (11, 39), (11, 59), (12, 54), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (32, 56), (34, 74), (35, 53), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (48, 49), (50, 57), (59, 73), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] Optimize a model with 144 rows, 2850 columns and 39290 nonzeros Presolve time: 0.05s Presolved: 144 rows, 2850 columns, 39290 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.910625e+02, 178 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.06250 0 70 2820.00000 691.06250 75.5% - 0s Another try with MIP start H 0 0 703.0000000 691.06250 1.70% - 0s 0 0 692.29615 0 83 703.00000 692.29615 1.52% - 0s 0 0 692.29615 0 70 703.00000 692.29615 1.52% - 0s 0 0 692.78710 0 78 703.00000 692.78710 1.45% - 0s H 0 0 702.0000000 692.78710 1.31% - 0s 0 0 692.83823 0 85 702.00000 692.83823 1.31% - 0s 0 0 692.84934 0 87 702.00000 692.84934 1.30% - 0s 0 0 692.84934 0 89 702.00000 692.84934 1.30% - 0s 0 2 693.37176 0 89 702.00000 693.37176 1.23% - 0s H 1 2 699.0000000 693.37176 0.81% 0.0 0s * 107 49 31 698.0000000 694.12899 0.55% 16.9 0s * 219 45 26 697.0000000 694.66234 0.34% 14.5 0s Cutting planes: Gomory: 17 MIR: 13 Zero half: 13 Explored 315 nodes (4483 simplex iterations) in 1.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 36), (11, 32), (11, 59), (12, 60), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 70), (28, 46), (28, 53), (30, 46), (30, 49), (32, 73), (35, 53), (36, 54), (37, 70), (37, 72), (39, 59), (39, 66), (48, 49), (61, 71), (61, 72), (66, 67)] adding cut for [(2, 63), (2, 74), (3, 63), (3, 75), (4, 25), (4, 45), (10, 26), (10, 40), (17, 52), (17, 64), (19, 51), (19, 56), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (29, 75), (33, 45), (33, 51), (34, 64), (34, 74), (40, 41), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 146 rows, 2850 columns and 40320 nonzeros Presolve time: 0.05s Presolved: 146 rows, 2850 columns, 40320 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.910625e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.06250 0 72 2820.00000 691.06250 75.5% - 0s Another try with MIP start H 0 0 711.0000000 691.06250 2.80% - 0s 0 0 692.30721 0 86 711.00000 692.30721 2.63% - 0s 0 0 692.30721 0 70 711.00000 692.30721 2.63% - 0s 0 0 692.78710 0 78 711.00000 692.78710 2.56% - 0s 0 0 692.83823 0 85 711.00000 692.83823 2.55% - 0s 0 0 692.84107 0 94 711.00000 692.84107 2.55% - 0s 0 0 692.84624 0 93 711.00000 692.84624 2.55% - 0s 0 0 692.84900 0 92 711.00000 692.84900 2.55% - 0s 0 0 692.87031 0 92 711.00000 692.87031 2.55% - 0s 0 0 692.89342 0 91 711.00000 692.89342 2.55% - 0s 0 0 692.90683 0 92 711.00000 692.90683 2.54% - 0s 0 0 692.91492 0 96 711.00000 692.91492 2.54% - 0s 0 0 692.96050 0 88 711.00000 692.96050 2.54% - 0s 0 0 692.96859 0 92 711.00000 692.96859 2.54% - 0s 0 0 692.97052 0 96 711.00000 692.97052 2.54% - 0s 0 0 692.97511 0 95 711.00000 692.97511 2.54% - 0s 0 0 692.97511 0 99 711.00000 692.97511 2.54% - 0s H 0 0 709.0000000 692.97511 2.26% - 0s H 0 0 698.0000000 692.97511 0.72% - 0s 0 2 692.98186 0 99 698.00000 692.98186 0.72% - 0s * 224 38 11 697.0000000 694.84280 0.31% 10.9 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 13 Explored 314 nodes (3772 simplex iterations) in 1.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (3, 75), (6, 16), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 57), (24, 64), (29, 63), (29, 75), (34, 64), (34, 74), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (39, 66), (8, 54), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (17, 50), (25, 50), (26, 51), (26, 56), (59, 73), (60, 67)] Optimize a model with 148 rows, 2850 columns and 41052 nonzeros Presolve time: 0.05s Presolved: 148 rows, 2850 columns, 41052 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.910625e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.06250 0 71 2820.00000 691.06250 75.5% - 0s Another try with MIP start H 0 0 705.0000000 691.06250 1.98% - 0s 0 0 692.39689 0 84 705.00000 692.39689 1.79% - 0s 0 0 692.39689 0 69 705.00000 692.39689 1.79% - 0s 0 0 692.78710 0 78 705.00000 692.78710 1.73% - 0s 0 0 692.83823 0 87 705.00000 692.83823 1.73% - 0s 0 0 692.83823 0 89 705.00000 692.83823 1.73% - 0s 0 0 692.84959 0 83 705.00000 692.84959 1.72% - 0s 0 0 692.84959 0 90 705.00000 692.84959 1.72% - 0s 0 0 692.85893 0 87 705.00000 692.85893 1.72% - 0s 0 0 692.85893 0 89 705.00000 692.85893 1.72% - 0s 0 0 692.86028 0 92 705.00000 692.86028 1.72% - 0s 0 0 692.86028 0 88 705.00000 692.86028 1.72% - 0s H 0 0 700.0000000 692.86028 1.02% - 0s 0 2 692.87588 0 88 700.00000 692.87588 1.02% - 0s * 27 23 24 699.0000000 693.59297 0.77% 13.9 0s * 48 30 13 698.0000000 693.77261 0.61% 13.6 0s * 348 26 11 697.0000000 695.30729 0.24% 11.4 0s Cutting planes: Gomory: 3 MIR: 4 Zero half: 12 Explored 386 nodes (4743 simplex iterations) in 0.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 16), (6, 38), (8, 54), (9, 36), (10, 26), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 50), (24, 57), (25, 50), (26, 56), (32, 73), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (51, 56), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(3, 75), (3, 74), (29, 75), (29, 63), (63, 74)] Optimize a model with 150 rows, 2850 columns and 42097 nonzeros Presolve time: 0.05s Presolved: 150 rows, 2850 columns, 42097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.912615e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.26154 0 83 2820.00000 691.26154 75.5% - 0s Another try with MIP start H 0 0 706.0000000 691.26154 2.09% - 0s H 0 0 700.0000000 691.26154 1.25% - 0s 0 0 692.45066 0 89 700.00000 692.45066 1.08% - 0s 0 0 692.45066 0 83 700.00000 692.45066 1.08% - 0s 0 0 692.45066 0 89 700.00000 692.45066 1.08% - 0s 0 0 692.76108 0 92 700.00000 692.76108 1.03% - 0s 0 0 692.82166 0 98 700.00000 692.82166 1.03% - 0s 0 0 692.90314 0 86 700.00000 692.90314 1.01% - 0s 0 0 692.91952 0 92 700.00000 692.91952 1.01% - 0s 0 0 692.92275 0 99 700.00000 692.92275 1.01% - 0s 0 0 692.92808 0 100 700.00000 692.92808 1.01% - 0s 0 0 692.92808 0 100 700.00000 692.92808 1.01% - 0s 0 2 692.94048 0 100 700.00000 692.94048 1.01% - 0s * 32 20 25 699.0000000 693.60821 0.77% 11.4 0s * 123 52 21 698.0000000 694.05182 0.57% 12.3 0s * 499 21 12 697.0000000 695.72727 0.18% 10.9 0s Cutting planes: MIR: 8 Zero half: 14 Explored 523 nodes (6046 simplex iterations) in 0.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (3, 63), (3, 74), (6, 16), (6, 38), (10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (30, 46), (30, 49), (31, 75), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 151 rows, 2850 columns and 43475 nonzeros Presolve time: 0.05s Presolved: 151 rows, 2850 columns, 43475 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 187 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 703.0000000 691.46825 1.64% - 0s H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11827 0 97 700.00000 693.11827 0.98% - 0s 0 0 693.14862 0 95 700.00000 693.14862 0.98% - 0s 0 0 693.15829 0 100 700.00000 693.15829 0.98% - 0s 0 0 693.16494 0 99 700.00000 693.16494 0.98% - 0s 0 0 693.16701 0 101 700.00000 693.16701 0.98% - 0s 0 0 693.16701 0 101 700.00000 693.16701 0.98% - 0s H 0 0 699.0000000 693.16701 0.83% - 0s 0 2 693.16897 0 101 699.00000 693.16897 0.83% - 0s H 111 55 698.0000000 694.38622 0.52% 12.1 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 15 Explored 503 nodes (5580 simplex iterations) in 0.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(3, 75), (6, 16), (6, 38), (9, 20), (9, 36), (10, 26), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (26, 56), (32, 56), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 34), (2, 74), (4, 45), (4, 52), (17, 50), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 62), (29, 63), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] Optimize a model with 153 rows, 2850 columns and 44323 nonzeros Presolve time: 0.05s Presolved: 153 rows, 2850 columns, 44323 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 190 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 702.0000000 691.46825 1.50% - 0s H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11827 0 97 700.00000 693.11827 0.98% - 0s 0 0 693.12659 0 99 700.00000 693.12659 0.98% - 0s 0 0 693.13249 0 102 700.00000 693.13249 0.98% - 0s 0 0 693.13843 0 98 700.00000 693.13843 0.98% - 0s 0 0 693.13878 0 100 700.00000 693.13878 0.98% - 0s 0 2 693.13972 0 98 700.00000 693.13972 0.98% - 0s * 64 42 26 699.0000000 694.00776 0.71% 11.4 0s * 254 72 14 698.0000000 694.87981 0.45% 11.4 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 16 Explored 549 nodes (6196 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 45), (4, 52), (10, 33), (10, 40), (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, 63), (32, 40), (32, 56), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(66, 67), (36, 54), (28, 53), (9, 36), (9, 20), (39, 66), (12, 67), (12, 60), (13, 41), (13, 73), (14, 28), (14, 55), (15, 54), (15, 60), (11, 39), (11, 59), (59, 73), (20, 55), (47, 53)] adding cut for [(16, 58), (16, 38), (3, 75), (3, 31), (37, 70), (37, 48), (70, 72), (6, 49), (6, 58), (21, 71), (21, 38), (22, 75), (22, 48), (61, 71), (61, 72), (30, 46), (30, 49)] Optimize a model with 156 rows, 2850 columns and 45044 nonzeros Presolve time: 0.05s Presolved: 156 rows, 2850 columns, 45044 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 92 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11827 0 97 700.00000 693.11827 0.98% - 0s 0 0 693.13298 0 101 700.00000 693.13298 0.98% - 0s 0 0 693.13848 0 102 700.00000 693.13848 0.98% - 0s 0 0 693.16313 0 99 700.00000 693.16313 0.98% - 0s 0 0 693.17512 0 98 700.00000 693.17512 0.97% - 0s 0 0 693.17631 0 99 700.00000 693.17631 0.97% - 0s 0 0 693.17764 0 96 700.00000 693.17764 0.97% - 0s 0 0 693.17764 0 99 700.00000 693.17764 0.97% - 0s 0 2 693.18890 0 99 700.00000 693.18890 0.97% - 0s * 133 48 16 698.0000000 694.53155 0.50% 13.8 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 20 Explored 507 nodes (6186 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (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, 56), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67)] adding cut for [(37, 48), (37, 70), (48, 49), (21, 38), (21, 71), (6, 38), (6, 49), (70, 72), (61, 71), (61, 72)] Optimize a model with 158 rows, 2850 columns and 45524 nonzeros Presolve time: 0.05s Presolved: 158 rows, 2850 columns, 45524 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 222 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 701.0000000 691.46825 1.36% - 0s H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 92 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11273 0 97 700.00000 693.11273 0.98% - 0s 0 0 693.12909 0 101 700.00000 693.12909 0.98% - 0s 0 0 693.13363 0 101 700.00000 693.13363 0.98% - 0s 0 0 693.14370 0 99 700.00000 693.14370 0.98% - 0s 0 0 693.14933 0 100 700.00000 693.14933 0.98% - 0s 0 0 693.15142 0 101 700.00000 693.15142 0.98% - 0s H 0 0 699.0000000 693.15142 0.84% - 0s 0 2 693.16292 0 101 699.00000 693.16292 0.84% - 0s * 520 177 8 698.0000000 694.89881 0.44% 12.0 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 23 Explored 1248 nodes (13699 simplex iterations) in 1.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 36), (10, 40), (10, 41), (11, 32), (11, 59), (12, 60), (12, 67), (13, 41), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 52), (17, 64), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (29, 62), (32, 73), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (4, 45), (4, 50), (25, 50), (26, 51), (26, 56)] Optimize a model with 160 rows, 2850 columns and 46506 nonzeros Presolve time: 0.05s Presolved: 160 rows, 2850 columns, 46506 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 205 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 701.0000000 691.46825 1.36% - 0s H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11273 0 97 700.00000 693.11273 0.98% - 0s 0 0 693.12151 0 98 700.00000 693.12151 0.98% - 0s 0 0 693.12920 0 102 700.00000 693.12920 0.98% - 0s 0 0 693.13632 0 98 700.00000 693.13632 0.98% - 0s 0 0 693.13632 0 99 700.00000 693.13632 0.98% - 0s 0 2 693.16785 0 99 700.00000 693.16785 0.98% - 0s * 227 106 11 699.0000000 694.60490 0.63% 11.9 0s * 474 100 9 698.0000000 695.50995 0.36% 11.3 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 16 Explored 695 nodes (7819 simplex iterations) in 1.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (8, 54), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 41), (13, 59), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (30, 46), (30, 58), (32, 56), (33, 45), (33, 51), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 161 rows, 2850 columns and 47634 nonzeros Presolve time: 0.05s Presolved: 161 rows, 2850 columns, 47634 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 190 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 703.0000000 691.46825 1.64% - 0s H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11273 0 97 700.00000 693.11273 0.98% - 0s 0 0 693.14862 0 95 700.00000 693.14862 0.98% - 0s 0 0 693.15796 0 100 700.00000 693.15796 0.98% - 0s 0 0 693.16309 0 98 700.00000 693.16309 0.98% - 0s 0 0 693.16385 0 100 700.00000 693.16385 0.98% - 0s 0 0 693.16664 0 97 700.00000 693.16664 0.98% - 0s 0 0 693.16794 0 102 700.00000 693.16794 0.98% - 0s 0 0 693.16794 0 102 700.00000 693.16794 0.98% - 0s 0 2 693.18347 0 102 700.00000 693.18347 0.97% - 0s * 197 50 12 698.0000000 694.72917 0.47% 12.2 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 16 Explored 479 nodes (5937 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (8, 36), (10, 33), (10, 40), (11, 32), (11, 59), (12, 39), (12, 67), (15, 54), (15, 60), (17, 50), (17, 64), (19, 25), (19, 56), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 66), (33, 51), (34, 74), (36, 54), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67)] adding cut for [(3, 75), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 63), (29, 63), (29, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] Optimize a model with 163 rows, 2850 columns and 48415 nonzeros Presolve time: 0.05s Presolved: 163 rows, 2850 columns, 48415 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 199 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 700.0000000 691.46825 1.22% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 84 700.00000 692.75488 1.04% - 0s 0 0 692.75488 0 89 700.00000 692.75488 1.04% - 0s 0 0 693.04555 0 91 700.00000 693.04555 0.99% - 0s 0 0 693.09284 0 95 700.00000 693.09284 0.99% - 0s 0 0 693.11273 0 98 700.00000 693.11273 0.98% - 0s 0 0 693.12151 0 98 700.00000 693.12151 0.98% - 0s 0 0 693.12921 0 102 700.00000 693.12921 0.98% - 0s 0 0 693.13637 0 101 700.00000 693.13637 0.98% - 0s 0 0 693.14866 0 100 700.00000 693.14866 0.98% - 0s 0 0 693.17024 0 103 700.00000 693.17024 0.98% - 0s 0 0 693.17707 0 102 700.00000 693.17707 0.97% - 0s 0 0 693.17767 0 103 700.00000 693.17767 0.97% - 0s 0 2 693.21522 0 103 700.00000 693.21522 0.97% - 0s * 164 114 28 699.0000000 693.71674 0.76% 13.2 0s * 713 247 27 698.0000000 695.11207 0.41% 12.5 1s Cutting planes: Gomory: 11 MIR: 2 Zero half: 24 Explored 1020 nodes (12444 simplex iterations) in 1.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (6, 16), (6, 38), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (30, 46), (30, 49), (32, 56), (34, 64), (34, 74), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 164 rows, 2850 columns and 49450 nonzeros Presolve time: 0.05s Presolved: 164 rows, 2850 columns, 49450 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.914683e+02, 187 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.46825 0 84 2820.00000 691.46825 75.5% - 0s Another try with MIP start H 0 0 699.0000000 691.46825 1.08% - 0s 0 0 692.75488 0 89 699.00000 692.75488 0.89% - 0s 0 0 692.75488 0 84 699.00000 692.75488 0.89% - 0s 0 0 692.75488 0 92 699.00000 692.75488 0.89% - 0s 0 0 693.04555 0 91 699.00000 693.04555 0.85% - 0s 0 0 693.09457 0 95 699.00000 693.09457 0.84% - 0s 0 0 693.11827 0 97 699.00000 693.11827 0.84% - 0s 0 0 693.13298 0 101 699.00000 693.13298 0.84% - 0s 0 0 693.13848 0 101 699.00000 693.13848 0.84% - 0s 0 0 693.14715 0 99 699.00000 693.14715 0.84% - 0s 0 0 693.16399 0 101 699.00000 693.16399 0.83% - 0s 0 0 693.16617 0 102 699.00000 693.16617 0.83% - 0s 0 0 693.16955 0 102 699.00000 693.16955 0.83% - 0s 0 0 693.16955 0 102 699.00000 693.16955 0.83% - 0s 0 2 693.21023 0 102 699.00000 693.21023 0.83% - 0s * 276 107 13 698.0000000 694.33249 0.53% 12.6 0s Cutting planes: Gomory: 14 MIR: 2 Zero half: 23 Explored 1197 nodes (14396 simplex iterations) in 1.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (3, 63), (3, 75), (6, 16), (6, 38), (9, 20), (9, 36), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (23, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (32, 40), (32, 56), (34, 74), (35, 53), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 165 rows, 2850 columns and 51103 nonzeros Presolve time: 0.05s Presolved: 165 rows, 2850 columns, 51103 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.918303e+02, 193 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.83034 0 85 2820.00000 691.83034 75.5% - 0s Another try with MIP start H 0 0 700.0000000 691.83034 1.17% - 0s 0 0 692.67002 0 85 700.00000 692.67002 1.05% - 0s 0 0 692.67002 0 85 700.00000 692.67002 1.05% - 0s 0 0 692.67002 0 85 700.00000 692.67002 1.05% - 0s 0 0 693.08698 0 97 700.00000 693.08698 0.99% - 0s 0 0 693.19432 0 95 700.00000 693.19432 0.97% - 0s 0 0 693.22989 0 94 700.00000 693.22989 0.97% - 0s 0 0 693.41536 0 90 700.00000 693.41536 0.94% - 0s 0 0 693.45407 0 90 700.00000 693.45407 0.94% - 0s 0 0 693.45453 0 92 700.00000 693.45453 0.94% - 0s 0 0 693.46210 0 93 700.00000 693.46210 0.93% - 0s H 0 0 699.0000000 693.46210 0.79% - 0s 0 0 693.46210 0 93 699.00000 693.46210 0.79% - 0s 0 2 693.78790 0 93 699.00000 693.78790 0.75% - 0s * 169 49 32 698.0000000 694.86059 0.45% 14.8 1s Cutting planes: Gomory: 19 MIR: 3 Zero half: 15 Explored 434 nodes (5559 simplex iterations) in 1.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 49), (6, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (30, 46), (30, 49), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (36, 54), (39, 66), (50, 57), (60, 67)] Optimize a model with 167 rows, 2850 columns and 51659 nonzeros Presolve time: 0.05s Presolved: 167 rows, 2850 columns, 51659 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.918303e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.83034 0 85 2820.00000 691.83034 75.5% - 0s Another try with MIP start H 0 0 701.0000000 691.83034 1.31% - 0s H 0 0 700.0000000 691.83034 1.17% - 0s 0 0 692.54132 0 88 700.00000 692.54132 1.07% - 0s 0 0 692.54132 0 85 700.00000 692.54132 1.07% - 0s 0 0 692.67002 0 83 700.00000 692.67002 1.05% - 0s 0 0 693.08698 0 95 700.00000 693.08698 0.99% - 0s 0 0 693.19432 0 93 700.00000 693.19432 0.97% - 0s 0 0 693.20860 0 95 700.00000 693.20860 0.97% - 0s 0 0 693.37479 0 89 700.00000 693.37479 0.95% - 0s 0 0 693.37479 0 89 700.00000 693.37479 0.95% - 0s 0 2 693.72634 0 89 700.00000 693.72634 0.90% - 0s * 114 45 31 699.0000000 694.75690 0.61% 17.9 1s * 569 38 28 698.0000000 696.56369 0.21% 12.2 1s Cutting planes: Gomory: 11 MIR: 11 Zero half: 15 Explored 616 nodes (7721 simplex iterations) in 1.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.980000000000e+02, best bound 6.980000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (9, 36), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 46), (28, 53), (29, 63), (29, 75), (31, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (47, 53), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(3, 34), (8, 54), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (34, 64), (39, 66), (50, 57), (59, 73), (60, 67)] adding cut for [(30, 49), (6, 49), (6, 30)] Optimize a model with 170 rows, 2850 columns and 52411 nonzeros Presolve time: 0.05s Presolved: 170 rows, 2850 columns, 52411 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.918303e+02, 198 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 691.83034 0 85 2820.00000 691.83034 75.5% - 0s Another try with MIP start H 0 0 700.0000000 691.83034 1.17% - 0s 0 0 692.64427 0 90 700.00000 692.64427 1.05% - 0s 0 0 692.64427 0 85 700.00000 692.64427 1.05% - 0s 0 0 692.67002 0 83 700.00000 692.67002 1.05% - 0s 0 0 693.08385 0 96 700.00000 693.08385 0.99% - 0s 0 0 693.08385 0 98 700.00000 693.08385 0.99% - 0s 0 0 693.14627 0 93 700.00000 693.14627 0.98% - 0s 0 0 693.14627 0 95 700.00000 693.14627 0.98% - 0s 0 0 693.15378 0 94 700.00000 693.15378 0.98% - 0s 0 0 693.30740 0 88 700.00000 693.30740 0.96% - 0s 0 0 693.30740 0 90 700.00000 693.30740 0.96% - 0s 0 0 693.31320 0 93 700.00000 693.31320 0.96% - 0s 0 0 693.37316 0 95 700.00000 693.37316 0.95% - 0s 0 0 693.38776 0 90 700.00000 693.38776 0.94% - 0s 0 0 693.38776 0 92 700.00000 693.38776 0.94% - 0s 0 0 693.38866 0 94 700.00000 693.38866 0.94% - 0s 0 2 693.39613 0 94 700.00000 693.39613 0.94% - 0s H 81 43 699.0000000 694.74511 0.61% 12.0 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 9 Explored 1356 nodes (15897 simplex iterations) in 2.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (3, 75), (6, 16), (6, 49), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (29, 63), (29, 75), (30, 46), (30, 49), (34, 64), (37, 48), (37, 70), (38, 58), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (14, 28), (14, 55), (15, 54), (15, 60), (20, 36), (20, 55), (26, 56), (28, 53), (32, 56), (36, 54), (39, 66), (40, 73), (59, 73), (60, 67)] Optimize a model with 172 rows, 2850 columns and 53107 nonzeros Presolve time: 0.05s Presolved: 172 rows, 2850 columns, 53107 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.921871e+02, 221 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.18709 0 81 2820.00000 692.18709 75.5% - 0s Another try with MIP start H 0 0 703.0000000 692.18709 1.54% - 0s H 0 0 699.0000000 692.18709 0.97% - 0s 0 0 692.71768 0 87 699.00000 692.71768 0.90% - 0s 0 0 692.71768 0 81 699.00000 692.71768 0.90% - 0s 0 0 692.71768 0 87 699.00000 692.71768 0.90% - 0s 0 0 693.22295 0 88 699.00000 693.22295 0.83% - 0s 0 0 693.28056 0 87 699.00000 693.28056 0.82% - 0s 0 0 693.29390 0 94 699.00000 693.29390 0.82% - 0s 0 0 693.33976 0 91 699.00000 693.33976 0.81% - 0s 0 0 693.34528 0 98 699.00000 693.34528 0.81% - 0s 0 0 693.39372 0 94 699.00000 693.39372 0.80% - 0s 0 0 693.44075 0 98 699.00000 693.44075 0.80% - 0s 0 0 693.44995 0 99 699.00000 693.44995 0.79% - 0s 0 0 693.46804 0 98 699.00000 693.46804 0.79% - 0s 0 0 693.50362 0 97 699.00000 693.50362 0.79% - 0s 0 0 693.51438 0 97 699.00000 693.51438 0.78% - 0s 0 0 693.51531 0 99 699.00000 693.51531 0.78% - 0s 0 0 693.51531 0 99 699.00000 693.51531 0.78% - 0s 0 2 693.51917 0 99 699.00000 693.51917 0.78% - 0s Cutting planes: Gomory: 6 MIR: 3 Zero half: 12 Explored 778 nodes (9066 simplex iterations) in 1.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (13, 73), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (26, 56), (28, 46), (28, 53), (30, 46), (30, 49), (32, 56), (35, 53), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 74), (2, 23), (4, 41), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (34, 74), (17, 64), (17, 50), (19, 51), (19, 25), (25, 50), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 174 rows, 2850 columns and 53892 nonzeros Presolve time: 0.05s Presolved: 174 rows, 2850 columns, 53892 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.921871e+02, 209 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.18709 0 81 2820.00000 692.18709 75.5% - 0s Another try with MIP start H 0 0 701.0000000 692.18709 1.26% - 0s 0 0 692.71768 0 87 701.00000 692.71768 1.18% - 0s 0 0 692.71768 0 81 701.00000 692.71768 1.18% - 0s 0 0 692.71768 0 87 701.00000 692.71768 1.18% - 0s 0 0 693.22324 0 91 701.00000 693.22324 1.11% - 0s 0 0 693.28412 0 93 701.00000 693.28412 1.10% - 0s 0 0 693.32887 0 95 701.00000 693.32887 1.09% - 0s 0 0 693.41040 0 93 701.00000 693.41040 1.08% - 0s 0 0 693.45448 0 95 701.00000 693.45448 1.08% - 0s 0 0 693.45629 0 98 701.00000 693.45629 1.08% - 0s 0 0 693.47303 0 100 701.00000 693.47303 1.07% - 0s 0 0 693.49476 0 101 701.00000 693.49476 1.07% - 0s 0 0 693.50127 0 98 701.00000 693.50127 1.07% - 0s 0 0 693.50695 0 97 701.00000 693.50695 1.07% - 0s 0 0 693.50775 0 97 701.00000 693.50775 1.07% - 0s 0 0 693.50775 0 97 701.00000 693.50775 1.07% - 0s 0 2 693.54137 0 97 701.00000 693.54137 1.06% - 0s * 129 72 18 700.0000000 694.82216 0.74% 12.9 0s * 414 114 16 699.0000000 695.91045 0.44% 12.3 1s Cutting planes: Gomory: 4 MIR: 2 Zero half: 15 Explored 939 nodes (10412 simplex iterations) in 1.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 46), (28, 53), (30, 46), (30, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(8, 36), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (36, 54), (39, 66), (50, 57), (59, 73), (60, 67)] adding cut for [(2, 44), (2, 34), (3, 74), (43, 65), (34, 74), (29, 75), (29, 63), (23, 65), (23, 63), (31, 75), (42, 43), (42, 44)] Optimize a model with 177 rows, 2850 columns and 54476 nonzeros Presolve time: 0.05s Presolved: 177 rows, 2850 columns, 54476 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.921871e+02, 222 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.18709 0 81 2820.00000 692.18709 75.5% - 0s Another try with MIP start H 0 0 701.0000000 692.18709 1.26% - 0s 0 0 692.71768 0 87 701.00000 692.71768 1.18% - 0s 0 0 692.71768 0 81 701.00000 692.71768 1.18% - 0s 0 0 692.71768 0 87 701.00000 692.71768 1.18% - 0s 0 0 693.22329 0 91 701.00000 693.22329 1.11% - 0s 0 0 693.33453 0 89 701.00000 693.33453 1.09% - 0s 0 0 693.40458 0 92 701.00000 693.40458 1.08% - 0s 0 0 693.42046 0 90 701.00000 693.42046 1.08% - 0s 0 0 693.44074 0 96 701.00000 693.44074 1.08% - 0s 0 0 693.46733 0 100 701.00000 693.46733 1.07% - 0s 0 0 693.48079 0 99 701.00000 693.48079 1.07% - 0s 0 0 693.48400 0 99 701.00000 693.48400 1.07% - 0s 0 0 693.48433 0 100 701.00000 693.48433 1.07% - 0s 0 0 693.48433 0 100 701.00000 693.48433 1.07% - 0s 0 2 693.49941 0 100 701.00000 693.49941 1.07% - 0s * 151 77 16 700.0000000 694.77965 0.75% 12.3 0s * 390 113 12 699.0000000 695.55172 0.49% 10.8 1s Cutting planes: Gomory: 4 MIR: 2 Zero half: 10 Explored 1188 nodes (13508 simplex iterations) in 2.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (8, 54), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (13, 41), (15, 54), (15, 60), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (39, 66), (40, 41), (59, 73), (60, 67)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (9, 36), (14, 58), (14, 55), (61, 71), (61, 72), (20, 36), (20, 55), (21, 71), (21, 38), (22, 48), (22, 62), (6, 16), (6, 38), (29, 62), (29, 63)] Optimize a model with 179 rows, 2850 columns and 54986 nonzeros Presolve time: 0.05s Presolved: 179 rows, 2850 columns, 54986 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923161e+02, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.31605 0 83 2820.00000 692.31605 75.4% - 0s Another try with MIP start H 0 0 703.0000000 692.31605 1.52% - 0s H 0 0 701.0000000 692.31605 1.24% - 0s 0 0 692.86739 0 85 701.00000 692.86739 1.16% - 0s 0 0 692.86739 0 84 701.00000 692.86739 1.16% - 0s 0 0 692.90703 0 88 701.00000 692.90703 1.15% - 0s 0 0 693.38068 0 91 701.00000 693.38068 1.09% - 0s 0 0 693.45678 0 88 701.00000 693.45678 1.08% - 0s 0 0 693.49363 0 88 701.00000 693.49363 1.07% - 0s 0 0 693.51573 0 98 701.00000 693.51573 1.07% - 0s 0 0 693.53188 0 97 701.00000 693.53188 1.07% - 0s 0 0 693.55043 0 94 701.00000 693.55043 1.06% - 0s 0 0 693.57896 0 98 701.00000 693.57896 1.06% - 0s 0 0 693.63767 0 96 701.00000 693.63767 1.05% - 0s 0 0 693.67926 0 97 701.00000 693.67926 1.04% - 0s 0 0 693.74491 0 98 701.00000 693.74491 1.03% - 0s 0 0 693.74491 0 100 701.00000 693.74491 1.03% - 0s 0 0 693.74691 0 96 701.00000 693.74691 1.03% - 0s 0 0 693.74691 0 101 701.00000 693.74691 1.03% - 0s H 0 0 699.0000000 693.74691 0.75% - 0s 0 2 693.75044 0 100 699.00000 693.75044 0.75% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 388 nodes (5099 simplex iterations) in 1.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 45), (4, 52), (17, 50), (17, 64), (19, 25), (19, 51), (22, 29), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 63), (33, 45), (33, 51), (34, 74), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (30, 49), (35, 53), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (36, 54), (39, 66), (39, 59), (8, 36), (10, 40), (10, 26), (11, 32), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (40, 73), (41, 73), (26, 56), (60, 67)] Optimize a model with 182 rows, 2850 columns and 55646 nonzeros Presolve time: 0.05s Presolved: 182 rows, 2850 columns, 55646 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923161e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.31605 0 84 2820.00000 692.31605 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.31605 1.24% - 0s H 0 0 700.0000000 692.31605 1.10% - 0s 0 0 692.86739 0 85 700.00000 692.86739 1.02% - 0s 0 0 692.86739 0 84 700.00000 692.86739 1.02% - 0s 0 0 692.90703 0 88 700.00000 692.90703 1.01% - 0s 0 0 693.39897 0 88 700.00000 693.39897 0.94% - 0s 0 0 693.41870 0 86 700.00000 693.41870 0.94% - 0s 0 0 693.46759 0 92 700.00000 693.46759 0.93% - 0s 0 0 693.47730 0 92 700.00000 693.47730 0.93% - 0s 0 0 693.49465 0 95 700.00000 693.49465 0.93% - 0s 0 0 693.51502 0 95 700.00000 693.51502 0.93% - 0s 0 0 693.53682 0 95 700.00000 693.53682 0.92% - 0s 0 0 693.55151 0 97 700.00000 693.55151 0.92% - 0s 0 0 693.55151 0 99 700.00000 693.55151 0.92% - 0s 0 0 693.55425 0 95 700.00000 693.55425 0.92% - 0s 0 0 693.55425 0 95 700.00000 693.55425 0.92% - 0s 0 2 693.55709 0 95 700.00000 693.55709 0.92% - 0s H 968 94 699.0000000 696.63614 0.34% 11.5 1s Explored 1346 nodes (15522 simplex iterations) in 1.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(3, 75), (6, 16), (6, 38), (8, 36), (9, 20), (9, 47), (12, 39), (12, 54), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 63), (28, 53), (29, 63), (29, 75), (36, 54), (37, 48), (37, 70), (39, 66), (47, 53), (55, 58), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 44), (2, 74), (4, 45), (4, 52), (10, 40), (10, 41), (11, 32), (11, 59), (17, 50), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 41), (33, 45), (34, 74), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73)] Optimize a model with 184 rows, 2850 columns and 56585 nonzeros Presolve time: 0.05s Presolved: 184 rows, 2850 columns, 56585 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923812e+02, 210 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38115 0 83 2820.00000 692.38115 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.38115 1.23% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.97485 0 89 701.00000 692.97485 1.14% - 0s 0 0 693.61849 0 88 701.00000 693.61849 1.05% - 0s 0 0 693.68195 0 93 701.00000 693.68195 1.04% - 0s 0 0 693.73607 0 92 701.00000 693.73607 1.04% - 0s 0 0 693.74139 0 94 701.00000 693.74139 1.04% - 0s 0 0 693.74845 0 96 701.00000 693.74845 1.03% - 0s 0 0 693.74845 0 98 701.00000 693.74845 1.03% - 0s 0 0 693.76782 0 92 701.00000 693.76782 1.03% - 0s 0 0 693.77191 0 92 701.00000 693.77191 1.03% - 0s 0 0 693.77191 0 94 701.00000 693.77191 1.03% - 0s 0 2 693.78351 0 94 701.00000 693.78351 1.03% - 0s * 575 202 18 700.0000000 696.25000 0.54% 11.4 1s * 1832 27 24 699.0000000 697.77778 0.17% 10.9 2s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Explored 1860 nodes (20494 simplex iterations) in 2.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (34, 64), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (63, 74)] adding cut for [(6, 30), (6, 49), (9, 20), (9, 47), (14, 28), (14, 55), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (30, 46), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] Optimize a model with 186 rows, 2850 columns and 57312 nonzeros Presolve time: 0.05s Presolved: 186 rows, 2850 columns, 57312 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923812e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38115 0 83 2820.00000 692.38115 75.4% - 0s Another try with MIP start H 0 0 702.0000000 692.38115 1.37% - 0s H 0 0 701.0000000 692.38115 1.23% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 693.07661 0 89 701.00000 693.07661 1.13% - 0s 0 0 693.63658 0 92 701.00000 693.63658 1.05% - 0s 0 0 693.71591 0 90 701.00000 693.71591 1.04% - 0s 0 0 693.71591 0 91 701.00000 693.71591 1.04% - 0s 0 0 693.71693 0 93 701.00000 693.71693 1.04% - 0s 0 2 693.74605 0 93 701.00000 693.74605 1.03% - 0s * 75 39 15 700.0000000 694.74839 0.75% 12.5 0s * 949 133 26 699.0000000 696.54854 0.35% 12.2 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 4 Explored 1184 nodes (14332 simplex iterations) in 2.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.990000000000e+02, best bound 6.990000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 36), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (30, 49), (32, 73), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 34), (2, 64), (4, 25), (4, 45), (10, 26), (10, 40), (17, 52), (17, 64), (19, 51), (19, 56), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 63), (29, 75), (33, 45), (33, 51), (34, 74), (40, 41), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] Optimize a model with 188 rows, 2850 columns and 58275 nonzeros Presolve time: 0.04s Presolved: 188 rows, 2850 columns, 58275 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923812e+02, 192 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38115 0 83 2820.00000 692.38115 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.38115 1.23% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 693.07661 0 89 701.00000 693.07661 1.13% - 0s 0 0 693.58293 0 95 701.00000 693.58293 1.06% - 0s 0 0 693.74437 0 89 701.00000 693.74437 1.04% - 0s 0 0 693.74437 0 91 701.00000 693.74437 1.04% - 0s 0 0 693.75184 0 94 701.00000 693.75184 1.03% - 0s 0 0 693.75184 0 96 701.00000 693.75184 1.03% - 0s 0 0 693.75578 0 90 701.00000 693.75578 1.03% - 0s 0 0 693.75974 0 96 701.00000 693.75974 1.03% - 0s 0 2 693.78754 0 96 701.00000 693.78754 1.03% - 0s * 127 61 14 700.0000000 695.09423 0.70% 12.4 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 7 Explored 1736 nodes (19694 simplex iterations) in 3.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 30), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (30, 46), (32, 56), (39, 66), (50, 57), (60, 67)] adding cut for [(2, 44), (2, 74), (3, 34), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (31, 75), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (49, 75), (61, 71), (61, 72), (70, 72)] Optimize a model with 190 rows, 2850 columns and 58926 nonzeros Presolve time: 0.04s Presolved: 190 rows, 2850 columns, 58926 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923812e+02, 193 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38115 0 82 2820.00000 692.38115 75.4% - 0s Another try with MIP start H 0 0 702.0000000 692.38115 1.37% - 0s 0 0 692.92000 0 83 702.00000 692.92000 1.29% - 0s 0 0 692.92000 0 83 702.00000 692.92000 1.29% - 0s 0 0 693.12226 0 84 702.00000 693.12226 1.26% - 0s 0 0 693.59642 0 83 702.00000 693.59642 1.20% - 0s 0 0 693.67041 0 82 702.00000 693.67041 1.19% - 0s 0 0 693.68480 0 88 702.00000 693.68480 1.18% - 0s 0 0 693.73975 0 88 702.00000 693.73975 1.18% - 0s 0 0 693.75194 0 87 702.00000 693.75194 1.17% - 0s 0 0 693.82666 0 92 702.00000 693.82666 1.16% - 0s 0 0 693.82666 0 92 702.00000 693.82666 1.16% - 0s 0 0 693.82867 0 96 702.00000 693.82867 1.16% - 0s 0 2 693.83064 0 96 702.00000 693.83064 1.16% - 0s * 81 52 16 700.0000000 694.72174 0.75% 13.0 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 7 Explored 1415 nodes (15417 simplex iterations) in 1.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 30), (6, 38), (10, 33), (10, 40), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (30, 46), (32, 56), (32, 73), (33, 45), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(36, 54), (39, 66), (8, 36), (11, 39), (11, 59), (12, 66), (12, 67), (13, 59), (15, 54), (15, 60), (60, 67)] Optimize a model with 192 rows, 2850 columns and 59587 nonzeros Presolve time: 0.04s Presolved: 192 rows, 2850 columns, 59587 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923812e+02, 194 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38115 0 83 2820.00000 692.38115 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.38115 1.23% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.92000 0 83 701.00000 692.92000 1.15% - 0s 0 0 692.97485 0 89 701.00000 692.97485 1.14% - 0s 0 0 693.61849 0 88 701.00000 693.61849 1.05% - 0s 0 0 693.68195 0 93 701.00000 693.68195 1.04% - 0s 0 0 693.73607 0 92 701.00000 693.73607 1.04% - 0s 0 0 693.74742 0 93 701.00000 693.74742 1.03% - 0s 0 0 693.74927 0 95 701.00000 693.74927 1.03% - 0s 0 0 693.78889 0 86 701.00000 693.78889 1.03% - 0s 0 0 693.81458 0 94 701.00000 693.81458 1.03% - 0s 0 0 693.81458 0 95 701.00000 693.81458 1.03% - 0s 0 0 693.81458 0 94 701.00000 693.81458 1.03% - 0s 0 0 693.81458 0 95 701.00000 693.81458 1.03% - 0s 0 0 693.81458 0 94 701.00000 693.81458 1.03% - 0s 0 2 693.93768 0 93 701.00000 693.93768 1.01% - 0s * 57 40 28 700.0000000 694.54411 0.78% 13.6 0s Cutting planes: Gomory: 4 MIR: 2 Zero half: 3 Explored 1817 nodes (20756 simplex iterations) in 2.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (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, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 193 rows, 2850 columns and 60763 nonzeros Presolve time: 0.05s Presolved: 193 rows, 2850 columns, 60763 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923834e+02, 191 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38338 0 80 2820.00000 692.38338 75.4% - 0s Another try with MIP start H 0 0 704.0000000 692.38338 1.65% - 0s 0 0 692.92000 0 81 704.00000 692.92000 1.57% - 0s 0 0 692.92000 0 83 704.00000 692.92000 1.57% - 0s 0 0 693.11651 0 85 704.00000 693.11651 1.55% - 0s 0 0 693.58756 0 87 704.00000 693.58756 1.48% - 0s 0 0 693.60905 0 89 704.00000 693.60905 1.48% - 0s 0 0 693.60905 0 90 704.00000 693.60905 1.48% - 0s 0 0 693.63861 0 93 704.00000 693.63861 1.47% - 0s 0 0 693.63861 0 97 704.00000 693.63861 1.47% - 0s 0 0 693.65581 0 94 704.00000 693.65581 1.47% - 0s 0 0 693.65581 0 92 704.00000 693.65581 1.47% - 0s 0 0 693.65581 0 95 704.00000 693.65581 1.47% - 0s 0 0 693.66145 0 92 704.00000 693.66145 1.47% - 0s 0 0 693.66697 0 95 704.00000 693.66697 1.47% - 0s 0 0 693.66697 0 95 704.00000 693.66697 1.47% - 0s 0 2 693.72386 0 95 704.00000 693.72386 1.46% - 0s H 48 35 703.0000000 694.68734 1.18% 12.1 1s * 85 55 35 702.0000000 694.68734 1.04% 11.5 1s * 141 66 24 700.0000000 694.79405 0.74% 12.4 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 12 Explored 1378 nodes (15615 simplex iterations) in 2.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (8, 36), (10, 33), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (36, 54), (39, 59), (39, 66), (40, 73), (50, 57), (60, 67)] adding cut for [(2, 44), (2, 74), (6, 49), (6, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (30, 46), (30, 49), (31, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 195 rows, 2850 columns and 61520 nonzeros Presolve time: 0.05s Presolved: 195 rows, 2850 columns, 61520 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923834e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38338 0 80 2820.00000 692.38338 75.4% - 0s Another try with MIP start H 0 0 703.0000000 692.38338 1.51% - 0s 0 0 692.92000 0 81 703.00000 692.92000 1.43% - 0s 0 0 692.92000 0 83 703.00000 692.92000 1.43% - 0s 0 0 692.96620 0 89 703.00000 692.96620 1.43% - 0s 0 0 693.61021 0 86 703.00000 693.61021 1.34% - 0s 0 0 693.61845 0 88 703.00000 693.61845 1.33% - 0s 0 0 693.61845 0 90 703.00000 693.61845 1.33% - 0s 0 0 693.63492 0 95 703.00000 693.63492 1.33% - 0s 0 0 693.65315 0 93 703.00000 693.65315 1.33% - 0s 0 0 693.66118 0 98 703.00000 693.66118 1.33% - 0s 0 0 693.67437 0 95 703.00000 693.67437 1.33% - 0s 0 0 693.68503 0 98 703.00000 693.68503 1.33% - 0s 0 0 693.69591 0 99 703.00000 693.69591 1.32% - 0s 0 0 693.71275 0 94 703.00000 693.71275 1.32% - 0s 0 0 693.71733 0 103 703.00000 693.71733 1.32% - 0s 0 0 693.72183 0 97 703.00000 693.72183 1.32% - 0s 0 0 693.76853 0 98 703.00000 693.76853 1.31% - 0s 0 0 693.77348 0 102 703.00000 693.77348 1.31% - 0s 0 0 693.84679 0 83 703.00000 693.84679 1.30% - 0s 0 0 693.85004 0 95 703.00000 693.85004 1.30% - 0s 0 0 693.85004 0 95 703.00000 693.85004 1.30% - 0s 0 2 693.86246 0 95 703.00000 693.86246 1.30% - 1s * 31 25 22 702.0000000 694.54835 1.06% 16.3 1s * 60 36 25 701.0000000 694.90313 0.87% 13.0 1s * 407 135 20 700.0000000 695.94524 0.58% 12.8 1s Cutting planes: Gomory: 9 MIR: 2 Zero half: 7 Explored 1518 nodes (19776 simplex iterations) in 3.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (3, 75), (6, 16), (6, 38), (11, 32), (11, 59), (12, 66), (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, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 74), (37, 48), (37, 70), (39, 59), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 196 rows, 2850 columns and 62555 nonzeros Presolve time: 0.05s Presolved: 196 rows, 2850 columns, 62555 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.923834e+02, 202 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.38338 0 80 2820.00000 692.38338 75.4% - 0s Another try with MIP start H 0 0 709.0000000 692.38338 2.34% - 0s H 0 0 704.0000000 692.38338 1.65% - 0s 0 0 692.92000 0 81 704.00000 692.92000 1.57% - 0s 0 0 692.92000 0 83 704.00000 692.92000 1.57% - 0s 0 0 692.96620 0 89 704.00000 692.96620 1.57% - 0s 0 0 693.61074 0 87 704.00000 693.61074 1.48% - 0s 0 0 693.61074 0 89 704.00000 693.61074 1.48% - 0s 0 0 693.64505 0 86 704.00000 693.64505 1.47% - 0s 0 0 693.64505 0 88 704.00000 693.64505 1.47% - 0s 0 0 693.64810 0 92 704.00000 693.64810 1.47% - 0s 0 0 693.64810 0 92 704.00000 693.64810 1.47% - 0s 0 2 693.66018 0 92 704.00000 693.66018 1.47% - 0s H 27 24 703.0000000 693.92996 1.29% 16.4 1s * 33 25 26 702.0000000 693.92996 1.15% 15.2 1s * 353 187 26 701.0000000 695.32210 0.81% 11.8 1s * 556 195 19 700.0000000 696.04762 0.56% 11.7 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 4 Explored 1895 nodes (23116 simplex iterations) in 3.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 38), (6, 49), (8, 9), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (30, 46), (30, 49), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (47, 53), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 197 rows, 2850 columns and 63780 nonzeros Presolve time: 0.05s Presolved: 197 rows, 2850 columns, 63780 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.925777e+02, 204 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.57775 0 81 2820.00000 692.57775 75.4% - 0s Another try with MIP start H 0 0 705.0000000 692.57775 1.76% - 0s H 0 0 701.0000000 692.57775 1.20% - 0s 0 0 693.08917 0 82 701.00000 693.08917 1.13% - 0s 0 0 693.08917 0 81 701.00000 693.08917 1.13% - 0s 0 0 693.47334 0 77 701.00000 693.47334 1.07% - 0s 0 0 693.77592 0 83 701.00000 693.77592 1.03% - 0s 0 0 693.78369 0 87 701.00000 693.78369 1.03% - 0s 0 0 693.78369 0 88 701.00000 693.78369 1.03% - 0s 0 0 693.78369 0 89 701.00000 693.78369 1.03% - 0s 0 2 693.84229 0 89 701.00000 693.84229 1.02% - 0s * 241 89 13 700.0000000 695.22530 0.68% 12.7 1s Cutting planes: Gomory: 4 MIR: 2 Zero half: 3 Explored 959 nodes (11470 simplex iterations) in 1.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 30), (6, 38), (9, 20), (9, 47), (13, 41), (14, 55), (14, 58), (16, 30), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (33, 45), (33, 51), (35, 47), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (66, 67), (36, 54), (39, 66), (8, 36), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (40, 73), (26, 56), (59, 73)] Optimize a model with 199 rows, 2850 columns and 64582 nonzeros Presolve time: 0.05s Presolved: 199 rows, 2850 columns, 64582 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.926114e+02, 202 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.61139 0 79 2820.00000 692.61139 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.61139 1.20% - 0s 0 0 693.16217 0 81 701.00000 693.16217 1.12% - 0s 0 0 693.16217 0 82 701.00000 693.16217 1.12% - 0s 0 0 693.34663 0 79 701.00000 693.34663 1.09% - 0s 0 0 693.64214 0 91 701.00000 693.64214 1.05% - 0s 0 0 693.64789 0 94 701.00000 693.64789 1.05% - 0s 0 0 693.64789 0 95 701.00000 693.64789 1.05% - 0s 0 0 693.64789 0 95 701.00000 693.64789 1.05% - 0s 0 0 693.65695 0 83 701.00000 693.65695 1.05% - 0s 0 0 693.66330 0 95 701.00000 693.66330 1.05% - 0s 0 0 693.68938 0 96 701.00000 693.68938 1.04% - 0s 0 0 693.68938 0 98 701.00000 693.68938 1.04% - 0s 0 0 693.69945 0 96 701.00000 693.69945 1.04% - 0s 0 0 693.73221 0 100 701.00000 693.73221 1.04% - 0s 0 0 693.76484 0 97 701.00000 693.76484 1.03% - 0s 0 0 693.76484 0 99 701.00000 693.76484 1.03% - 0s 0 0 693.78385 0 96 701.00000 693.78385 1.03% - 0s 0 0 693.78385 0 98 701.00000 693.78385 1.03% - 0s 0 0 693.79420 0 96 701.00000 693.79420 1.03% - 0s 0 0 693.79573 0 99 701.00000 693.79573 1.03% - 0s 0 0 693.79942 0 99 701.00000 693.79942 1.03% - 0s 0 2 693.83989 0 99 701.00000 693.83989 1.02% - 1s * 88 47 15 700.0000000 695.28821 0.67% 15.5 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 18 Explored 803 nodes (9800 simplex iterations) in 1.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 25), (4, 45), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 50), (24, 57), (25, 50), (30, 46), (30, 49), (37, 48), (37, 70), (41, 45), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(36, 54), (33, 51), (39, 66), (8, 36), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (15, 54), (15, 60), (40, 73), (19, 51), (19, 56), (26, 32), (26, 56), (59, 73), (60, 67)] Optimize a model with 201 rows, 2850 columns and 65143 nonzeros Presolve time: 0.05s Presolved: 201 rows, 2850 columns, 65143 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.926114e+02, 217 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.61139 0 79 2820.00000 692.61139 75.4% - 0s Another try with MIP start H 0 0 706.0000000 692.61139 1.90% - 0s H 0 0 704.0000000 692.61139 1.62% - 0s 0 0 693.16217 0 81 704.00000 693.16217 1.54% - 0s 0 0 693.16217 0 79 704.00000 693.16217 1.54% - 0s 0 0 693.22845 0 89 704.00000 693.22845 1.53% - 0s 0 0 693.57749 0 88 704.00000 693.57749 1.48% - 0s 0 0 693.59476 0 94 704.00000 693.59476 1.48% - 0s 0 0 693.59476 0 94 704.00000 693.59476 1.48% - 0s 0 0 693.59476 0 95 704.00000 693.59476 1.48% - 0s 0 0 693.62995 0 94 704.00000 693.62995 1.47% - 0s 0 0 693.62995 0 96 704.00000 693.62995 1.47% - 0s 0 0 693.64202 0 94 704.00000 693.64202 1.47% - 0s 0 0 693.64527 0 98 704.00000 693.64527 1.47% - 0s 0 0 693.65665 0 96 704.00000 693.65665 1.47% - 0s 0 0 693.66832 0 93 704.00000 693.66832 1.47% - 0s 0 0 693.67009 0 100 704.00000 693.67009 1.47% - 0s 0 0 693.67940 0 99 704.00000 693.67940 1.47% - 0s 0 0 693.68078 0 98 704.00000 693.68078 1.47% - 0s 0 0 693.71213 0 98 704.00000 693.71213 1.46% - 0s 0 0 693.71213 0 101 704.00000 693.71213 1.46% - 0s 0 0 693.74764 0 99 704.00000 693.74764 1.46% - 0s 0 0 693.75804 0 103 704.00000 693.75804 1.45% - 0s 0 0 693.75828 0 101 704.00000 693.75828 1.45% - 0s 0 0 693.75828 0 103 704.00000 693.75828 1.45% - 0s 0 0 693.78423 0 96 704.00000 693.78423 1.45% - 0s 0 0 693.79724 0 99 704.00000 693.79724 1.45% - 1s 0 0 693.79866 0 102 704.00000 693.79866 1.45% - 1s 0 0 693.81008 0 99 704.00000 693.81008 1.45% - 1s 0 0 693.81039 0 103 704.00000 693.81039 1.45% - 1s 0 0 693.82835 0 98 704.00000 693.82835 1.44% - 1s 0 0 693.82879 0 102 704.00000 693.82879 1.44% - 1s 0 0 693.82879 0 101 704.00000 693.82879 1.44% - 1s 0 0 693.82879 0 102 704.00000 693.82879 1.44% - 1s 0 2 693.84746 0 102 704.00000 693.84746 1.44% - 1s * 128 81 24 702.0000000 694.80848 1.02% 14.6 1s * 237 131 12 701.0000000 694.94215 0.86% 14.6 1s * 504 159 17 700.0000000 696.09259 0.56% 13.6 1s Cutting planes: Gomory: 1 MIR: 1 Zero half: 10 Explored 1363 nodes (18385 simplex iterations) in 2.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 38), (8, 36), (9, 20), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (35, 47), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 202 rows, 2850 columns and 66224 nonzeros Presolve time: 0.05s Presolved: 202 rows, 2850 columns, 66224 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.926114e+02, 203 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.61139 0 79 2820.00000 692.61139 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.61139 1.20% - 0s 0 0 693.16217 0 81 701.00000 693.16217 1.12% - 0s 0 0 693.16217 0 82 701.00000 693.16217 1.12% - 0s 0 0 693.34663 0 79 701.00000 693.34663 1.09% - 0s 0 0 693.64214 0 91 701.00000 693.64214 1.05% - 0s 0 0 693.64789 0 94 701.00000 693.64789 1.05% - 0s 0 0 693.64789 0 95 701.00000 693.64789 1.05% - 0s 0 0 693.64789 0 95 701.00000 693.64789 1.05% - 0s 0 0 693.65695 0 83 701.00000 693.65695 1.05% - 0s 0 0 693.66330 0 95 701.00000 693.66330 1.05% - 0s 0 0 693.68938 0 96 701.00000 693.68938 1.04% - 0s 0 0 693.68938 0 98 701.00000 693.68938 1.04% - 0s 0 0 693.69945 0 96 701.00000 693.69945 1.04% - 0s 0 0 693.73221 0 100 701.00000 693.73221 1.04% - 0s 0 0 693.76484 0 97 701.00000 693.76484 1.03% - 0s 0 0 693.76484 0 99 701.00000 693.76484 1.03% - 0s 0 0 693.78385 0 96 701.00000 693.78385 1.03% - 0s 0 0 693.78385 0 98 701.00000 693.78385 1.03% - 0s 0 0 693.79420 0 96 701.00000 693.79420 1.03% - 0s 0 0 693.79573 0 99 701.00000 693.79573 1.03% - 0s 0 0 693.79942 0 96 701.00000 693.79942 1.03% - 0s 0 0 693.79942 0 99 701.00000 693.79942 1.03% - 0s 0 2 693.83989 0 99 701.00000 693.83989 1.02% - 1s H 135 59 700.0000000 695.38242 0.66% 14.9 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 17 Explored 848 nodes (10217 simplex iterations) in 1.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 25), (4, 45), (10, 26), (10, 40), (17, 52), (17, 64), (19, 51), (19, 56), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (33, 45), (33, 51), (34, 64), (34, 74), (40, 41), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (9, 20), (14, 58), (14, 55), (61, 71), (61, 72), (20, 55), (21, 71), (21, 38), (22, 48), (22, 62), (6, 16), (6, 38), (29, 62), (29, 63)] adding cut for [(32, 73), (36, 54), (39, 66), (39, 59), (8, 36), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (15, 54), (15, 60), (60, 67)] Optimize a model with 205 rows, 2850 columns and 66805 nonzeros Presolve time: 0.05s Presolved: 205 rows, 2850 columns, 66805 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.926114e+02, 199 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.61139 0 79 2820.00000 692.61139 75.4% - 0s Another try with MIP start H 0 0 703.0000000 692.61139 1.48% - 0s 0 0 693.16217 0 81 703.00000 693.16217 1.40% - 0s 0 0 693.16217 0 82 703.00000 693.16217 1.40% - 0s 0 0 693.22845 0 89 703.00000 693.22845 1.39% - 0s 0 0 693.58501 0 91 703.00000 693.58501 1.34% - 0s 0 0 693.60364 0 95 703.00000 693.60364 1.34% - 0s 0 0 693.63367 0 94 703.00000 693.63367 1.33% - 0s 0 0 693.63993 0 97 703.00000 693.63993 1.33% - 0s 0 0 693.68742 0 95 703.00000 693.68742 1.32% - 0s 0 0 693.69002 0 98 703.00000 693.69002 1.32% - 0s 0 0 693.71685 0 96 703.00000 693.71685 1.32% - 0s 0 0 693.73854 0 99 703.00000 693.73854 1.32% - 0s 0 0 693.74931 0 99 703.00000 693.74931 1.32% - 0s 0 0 693.77527 0 99 703.00000 693.77527 1.31% - 0s 0 0 693.78988 0 99 703.00000 693.78988 1.31% - 0s 0 0 693.80690 0 95 703.00000 693.80690 1.31% - 0s 0 0 693.83067 0 103 703.00000 693.83067 1.30% - 0s 0 0 693.84143 0 102 703.00000 693.84143 1.30% - 0s 0 0 693.85626 0 97 703.00000 693.85626 1.30% - 0s 0 0 693.86396 0 103 703.00000 693.86396 1.30% - 0s 0 0 693.87870 0 103 703.00000 693.87870 1.30% - 0s 0 0 693.88952 0 99 703.00000 693.88952 1.30% - 0s 0 0 693.89022 0 103 703.00000 693.89022 1.30% - 0s 0 0 693.89652 0 105 703.00000 693.89652 1.29% - 0s 0 0 693.89652 0 105 703.00000 693.89652 1.29% - 0s 0 2 693.93012 0 105 703.00000 693.93012 1.29% - 0s H 113 85 702.0000000 694.24089 1.11% 15.7 1s * 324 172 10 701.0000000 694.97241 0.86% 14.3 1s H 999 308 700.0000000 696.47149 0.50% 13.8 3s Cutting planes: Gomory: 6 MIR: 2 Zero half: 4 Explored 1558 nodes (20714 simplex iterations) in 3.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(8, 36), (9, 20), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (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), (28, 58), (32, 56), (32, 73), (35, 53), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (47, 53), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 45), (2, 64), (2, 74), (3, 75), (3, 34), (4, 45), (4, 17), (40, 41), (17, 64), (10, 33), (10, 40), (29, 75), (29, 63), (63, 74)] Optimize a model with 207 rows, 2850 columns and 67945 nonzeros Presolve time: 0.06s Presolved: 207 rows, 2850 columns, 67945 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.926114e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.61139 0 79 2820.00000 692.61139 75.4% - 0s Another try with MIP start H 0 0 701.0000000 692.61139 1.20% - 0s 0 0 693.16217 0 81 701.00000 693.16217 1.12% - 0s 0 0 693.16217 0 82 701.00000 693.16217 1.12% - 0s 0 0 693.34663 0 79 701.00000 693.34663 1.09% - 0s 0 0 693.64214 0 92 701.00000 693.64214 1.05% - 0s 0 0 693.64789 0 95 701.00000 693.64789 1.05% - 0s 0 0 693.65695 0 83 701.00000 693.65695 1.05% - 0s 0 0 693.66330 0 95 701.00000 693.66330 1.05% - 0s 0 0 693.68938 0 96 701.00000 693.68938 1.04% - 0s 0 0 693.68938 0 98 701.00000 693.68938 1.04% - 0s 0 0 693.69945 0 96 701.00000 693.69945 1.04% - 0s 0 0 693.73221 0 100 701.00000 693.73221 1.04% - 0s 0 0 693.76484 0 97 701.00000 693.76484 1.03% - 0s 0 0 693.76484 0 99 701.00000 693.76484 1.03% - 0s 0 0 693.78385 0 96 701.00000 693.78385 1.03% - 0s 0 0 693.78385 0 98 701.00000 693.78385 1.03% - 0s 0 0 693.79420 0 96 701.00000 693.79420 1.03% - 0s 0 0 693.79573 0 99 701.00000 693.79573 1.03% - 0s 0 0 693.79942 0 96 701.00000 693.79942 1.03% - 0s 0 0 693.79942 0 99 701.00000 693.79942 1.03% - 0s 0 2 693.83989 0 99 701.00000 693.83989 1.02% - 0s * 92 44 19 700.0000000 695.20073 0.69% 15.5 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 20 Explored 691 nodes (8829 simplex iterations) in 1.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 38), (6, 49), (9, 20), (9, 36), (10, 26), (10, 41), (11, 32), (11, 59), (12, 60), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 30), (16, 58), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (30, 49), (32, 40), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 208 rows, 2850 columns and 69220 nonzeros Presolve time: 0.06s Presolved: 208 rows, 2850 columns, 69220 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.929814e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.98140 0 83 2820.00000 692.98140 75.4% - 0s Another try with MIP start H 0 0 704.0000000 692.98140 1.57% - 0s 0 0 693.47419 0 88 704.00000 693.47419 1.50% - 0s 0 0 693.47419 0 83 704.00000 693.47419 1.50% - 0s 0 0 693.57814 0 77 704.00000 693.57814 1.48% - 0s 0 0 693.70141 0 78 704.00000 693.70141 1.46% - 0s 0 0 693.70141 0 79 704.00000 693.70141 1.46% - 0s 0 0 693.71111 0 82 704.00000 693.71111 1.46% - 0s 0 0 693.89900 0 77 704.00000 693.89900 1.43% - 0s 0 0 693.89900 0 79 704.00000 693.89900 1.43% - 0s 0 0 693.93796 0 87 704.00000 693.93796 1.43% - 0s 0 0 693.95242 0 83 704.00000 693.95242 1.43% - 0s 0 0 693.95486 0 88 704.00000 693.95486 1.43% - 0s 0 0 694.09528 0 79 704.00000 694.09528 1.41% - 0s 0 0 694.09528 0 85 704.00000 694.09528 1.41% - 0s 0 0 694.09528 0 84 704.00000 694.09528 1.41% - 0s 0 0 694.09528 0 87 704.00000 694.09528 1.41% - 0s 0 0 694.09528 0 87 704.00000 694.09528 1.41% - 0s H 0 0 703.0000000 694.09528 1.27% - 0s H 0 0 702.0000000 694.09528 1.13% - 0s 0 2 694.11065 0 87 702.00000 694.11065 1.12% - 1s * 272 107 13 701.0000000 696.35246 0.66% 13.4 1s * 752 177 19 700.0000000 697.16893 0.40% 13.3 2s Cutting planes: Gomory: 1 MIR: 1 Zero half: 8 Explored 1132 nodes (14742 simplex iterations) in 2.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (30, 49), (35, 53), (36, 54), (37, 48), (37, 70), (39, 66), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 23), (4, 45), (4, 25), (41, 45), (43, 65), (43, 44), (34, 74), (17, 64), (17, 50), (25, 50), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] adding cut for [(32, 40), (33, 51), (19, 51), (19, 56), (10, 33), (10, 40), (26, 32), (26, 56)] Optimize a model with 211 rows, 2850 columns and 69880 nonzeros Presolve time: 0.06s Presolved: 211 rows, 2850 columns, 69880 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.929814e+02, 219 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 692.98140 0 83 2820.00000 692.98140 75.4% - 0s Another try with MIP start H 0 0 704.0000000 692.98140 1.57% - 0s 0 0 693.47419 0 88 704.00000 693.47419 1.50% - 0s 0 0 693.47419 0 83 704.00000 693.47419 1.50% - 0s 0 0 693.58079 0 83 704.00000 693.58079 1.48% - 0s 0 0 693.72619 0 85 704.00000 693.72619 1.46% - 0s 0 0 693.98476 0 79 704.00000 693.98476 1.42% - 0s 0 0 693.98476 0 81 704.00000 693.98476 1.42% - 0s 0 0 693.99169 0 82 704.00000 693.99169 1.42% - 0s 0 0 693.99169 0 84 704.00000 693.99169 1.42% - 0s 0 0 694.04839 0 82 704.00000 694.04839 1.41% - 0s 0 0 694.04839 0 84 704.00000 694.04839 1.41% - 0s 0 0 694.05893 0 80 704.00000 694.05893 1.41% - 0s 0 0 694.05963 0 84 704.00000 694.05963 1.41% - 0s 0 0 694.06652 0 88 704.00000 694.06652 1.41% - 0s 0 0 694.06652 0 90 704.00000 694.06652 1.41% - 0s 0 0 694.08255 0 92 704.00000 694.08255 1.41% - 0s 0 0 694.08255 0 94 704.00000 694.08255 1.41% - 0s 0 0 694.08645 0 92 704.00000 694.08645 1.41% - 0s 0 0 694.08645 0 92 704.00000 694.08645 1.41% - 0s 0 2 694.08723 0 92 704.00000 694.08723 1.41% - 1s * 41 26 35 703.0000000 694.64798 1.19% 12.8 1s * 106 67 24 702.0000000 695.31123 0.95% 11.9 1s * 163 76 19 701.0000000 695.46093 0.79% 12.7 1s * 261 75 13 700.0000000 696.02163 0.57% 12.5 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 17 Explored 711 nodes (8675 simplex iterations) in 1.88 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 45), (4, 50), (6, 16), (6, 38), (9, 20), (9, 36), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (32, 73), (33, 45), (36, 54), (37, 48), (37, 70), (39, 66), (40, 41), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 212 rows, 2850 columns and 71311 nonzeros Presolve time: 0.06s Presolved: 212 rows, 2850 columns, 71311 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.931201e+02, 209 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.12012 0 85 2820.00000 693.12012 75.4% - 0s Another try with MIP start H 0 0 705.0000000 693.12012 1.69% - 0s H 0 0 704.0000000 693.12012 1.55% - 0s 0 0 693.80568 0 86 704.00000 693.80568 1.45% - 0s 0 0 693.80568 0 85 704.00000 693.80568 1.45% - 0s 0 0 693.99850 0 87 704.00000 693.99850 1.42% - 0s 0 0 694.10641 0 87 704.00000 694.10641 1.41% - 0s 0 0 694.10641 0 89 704.00000 694.10641 1.41% - 0s 0 0 694.10641 0 88 704.00000 694.10641 1.41% - 0s 0 0 694.10641 0 88 704.00000 694.10641 1.41% - 0s 0 0 694.10641 0 90 704.00000 694.10641 1.41% - 0s 0 2 694.12112 0 89 704.00000 694.12112 1.40% - 0s * 132 82 30 703.0000000 695.70627 1.04% 11.8 1s * 321 126 16 701.0000000 696.43745 0.65% 13.0 1s * 476 89 10 700.0000000 697.00430 0.43% 13.2 1s Cutting planes: Gomory: 2 MIR: 6 Zero half: 14 Explored 735 nodes (9552 simplex iterations) in 1.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+02, best bound 7.000000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (50, 57), (54, 59), (59, 73), (60, 67)] adding cut for [(2, 44), (2, 74), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (30, 46), (30, 49), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] Optimize a model with 214 rows, 2850 columns and 71965 nonzeros Presolve time: 0.06s Presolved: 214 rows, 2850 columns, 71965 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934341e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.43414 0 78 2820.00000 693.43414 75.4% - 0s Another try with MIP start H 0 0 706.0000000 693.43414 1.78% - 0s H 0 0 704.0000000 693.43414 1.50% - 0s 0 0 694.15257 0 84 704.00000 694.15257 1.40% - 0s 0 0 694.15257 0 81 704.00000 694.15257 1.40% - 0s 0 0 694.16382 0 89 704.00000 694.16382 1.40% - 0s 0 0 694.25843 0 92 704.00000 694.25843 1.38% - 0s 0 0 694.35784 0 93 704.00000 694.35784 1.37% - 0s 0 0 694.36844 0 94 704.00000 694.36844 1.37% - 0s 0 0 694.39950 0 99 704.00000 694.39950 1.36% - 0s 0 0 694.42951 0 97 704.00000 694.42951 1.36% - 0s 0 0 694.43101 0 100 704.00000 694.43101 1.36% - 0s 0 0 694.43850 0 99 704.00000 694.43850 1.36% - 0s 0 0 694.43850 0 99 704.00000 694.43850 1.36% - 0s 0 0 694.43850 0 98 704.00000 694.43850 1.36% - 0s 0 2 694.44118 0 98 704.00000 694.44118 1.36% - 1s * 71 51 25 703.0000000 695.50082 1.07% 15.7 1s * 124 76 26 702.0000000 696.11653 0.84% 14.5 1s * 184 78 13 701.0000000 696.57848 0.63% 14.4 1s Cutting planes: Gomory: 6 MIR: 1 Zero half: 13 Explored 1060 nodes (13184 simplex iterations) in 2.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 36), (9, 20), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (32, 56), (32, 73), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 45), (4, 33), (4, 45)] Optimize a model with 216 rows, 2850 columns and 73049 nonzeros Presolve time: 0.06s Presolved: 216 rows, 2850 columns, 73049 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934341e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.43414 0 78 2820.00000 693.43414 75.4% - 0s Another try with MIP start H 0 0 707.0000000 693.43414 1.92% - 0s 0 0 694.15257 0 84 707.00000 694.15257 1.82% - 0s 0 0 694.15257 0 81 707.00000 694.15257 1.82% - 0s 0 0 694.19915 0 89 707.00000 694.19915 1.81% - 0s 0 0 694.38501 0 90 707.00000 694.38501 1.78% - 0s 0 0 694.38705 0 95 707.00000 694.38705 1.78% - 0s 0 0 694.43616 0 95 707.00000 694.43616 1.78% - 0s 0 0 694.44679 0 94 707.00000 694.44679 1.78% - 0s 0 0 694.45764 0 100 707.00000 694.45764 1.77% - 0s 0 0 694.46359 0 99 707.00000 694.46359 1.77% - 0s 0 0 694.46710 0 95 707.00000 694.46710 1.77% - 0s 0 0 694.47746 0 97 707.00000 694.47746 1.77% - 0s 0 0 694.47831 0 101 707.00000 694.47831 1.77% - 0s 0 0 694.48353 0 103 707.00000 694.48353 1.77% - 0s 0 0 694.48353 0 102 707.00000 694.48353 1.77% - 0s 0 2 694.49679 0 102 707.00000 694.49679 1.77% - 0s H 57 57 705.0000000 694.93771 1.43% 15.6 1s * 518 246 40 702.0000000 695.98021 0.86% 13.0 1s H 566 178 701.0000000 696.15651 0.69% 13.3 1s Cutting planes: Gomory: 9 MIR: 2 Zero half: 13 Mod-K: 1 Explored 1614 nodes (21638 simplex iterations) in 4.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 41), (4, 45), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (34, 74), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (38, 58), (30, 46), (6, 16), (6, 30), (61, 71), (61, 72), (48, 49), (21, 71), (21, 38), (22, 75), (22, 62), (31, 75), (31, 49), (29, 62), (29, 63)] adding cut for [(28, 53), (39, 66), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (14, 28), (14, 55), (15, 54), (15, 60), (35, 53), (20, 54), (20, 55), (59, 73), (60, 67)] Optimize a model with 219 rows, 2850 columns and 73695 nonzeros Presolve time: 0.06s Presolved: 219 rows, 2850 columns, 73695 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934377e+02, 207 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.43769 0 79 2820.00000 693.43769 75.4% - 0s Another try with MIP start H 0 0 707.0000000 693.43769 1.92% - 0s 0 0 694.15257 0 84 707.00000 694.15257 1.82% - 0s 0 0 694.15257 0 82 707.00000 694.15257 1.82% - 0s 0 0 694.16912 0 86 707.00000 694.16912 1.81% - 0s 0 0 694.24120 0 87 707.00000 694.24120 1.80% - 0s 0 0 694.31756 0 89 707.00000 694.31756 1.79% - 0s 0 0 694.33964 0 92 707.00000 694.33964 1.79% - 0s 0 0 694.35410 0 94 707.00000 694.35410 1.79% - 0s 0 0 694.41389 0 96 707.00000 694.41389 1.78% - 0s 0 0 694.41389 0 98 707.00000 694.41389 1.78% - 0s 0 0 694.45120 0 98 707.00000 694.45120 1.77% - 0s 0 0 694.45962 0 98 707.00000 694.45962 1.77% - 0s 0 0 694.46419 0 96 707.00000 694.46419 1.77% - 0s 0 0 694.47346 0 99 707.00000 694.47346 1.77% - 0s 0 0 694.52577 0 98 707.00000 694.52577 1.76% - 0s 0 0 694.52577 0 101 707.00000 694.52577 1.76% - 0s 0 0 694.52950 0 96 707.00000 694.52950 1.76% - 0s 0 0 694.52950 0 99 707.00000 694.52950 1.76% - 0s H 0 0 703.0000000 694.52950 1.20% - 1s 0 2 694.53692 0 99 703.00000 694.53692 1.20% - 1s * 187 96 16 702.0000000 695.96069 0.86% 15.1 1s * 199 73 16 701.0000000 695.96069 0.72% 14.6 1s Cutting planes: Gomory: 6 MIR: 2 Zero half: 21 Explored 1080 nodes (13974 simplex iterations) in 2.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (3, 75), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 75), (32, 56), (34, 64), (34, 74), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] Optimize a model with 220 rows, 2850 columns and 74823 nonzeros Presolve time: 0.06s Presolved: 220 rows, 2850 columns, 74823 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934377e+02, 226 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.43769 0 79 2820.00000 693.43769 75.4% - 0s Another try with MIP start H 0 0 704.0000000 693.43769 1.50% - 0s 0 0 694.15257 0 84 704.00000 694.15257 1.40% - 0s 0 0 694.15257 0 82 704.00000 694.15257 1.40% - 0s 0 0 694.19361 0 90 704.00000 694.19361 1.39% - 0s 0 0 694.33581 0 89 704.00000 694.33581 1.37% - 0s 0 0 694.39185 0 93 704.00000 694.39185 1.36% - 0s 0 0 694.41154 0 93 704.00000 694.41154 1.36% - 0s 0 0 694.45246 0 90 704.00000 694.45246 1.36% - 0s 0 0 694.45246 0 93 704.00000 694.45246 1.36% - 0s 0 0 694.45619 0 94 704.00000 694.45619 1.36% - 0s 0 0 694.45619 0 97 704.00000 694.45619 1.36% - 0s 0 0 694.46710 0 94 704.00000 694.46710 1.35% - 0s 0 0 694.46814 0 98 704.00000 694.46814 1.35% - 0s 0 0 694.46814 0 101 704.00000 694.46814 1.35% - 0s 0 2 694.46830 0 101 704.00000 694.46830 1.35% - 1s * 29 20 23 702.0000000 695.64178 0.91% 16.0 1s H 166 64 701.0000000 696.38781 0.66% 14.1 1s Cutting planes: Gomory: 5 MIR: 1 Zero half: 12 Explored 1092 nodes (14138 simplex iterations) in 2.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 36), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 59), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (30, 49), (37, 48), (37, 70), (39, 66), (47, 53), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 45), (4, 52), (10, 33), (10, 40), (17, 50), (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), (31, 75), (32, 56), (32, 73), (33, 45), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 222 rows, 2850 columns and 75757 nonzeros Presolve time: 0.05s Presolved: 222 rows, 2850 columns, 75757 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934377e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.43769 0 79 2820.00000 693.43769 75.4% - 0s Another try with MIP start H 0 0 707.0000000 693.43769 1.92% - 0s 0 0 694.15257 0 85 707.00000 694.15257 1.82% - 0s 0 0 694.15257 0 82 707.00000 694.15257 1.82% - 0s 0 0 694.16912 0 88 707.00000 694.16912 1.81% - 0s 0 0 694.24120 0 89 707.00000 694.24120 1.80% - 0s 0 0 694.31756 0 90 707.00000 694.31756 1.79% - 0s 0 0 694.33964 0 92 707.00000 694.33964 1.79% - 0s 0 0 694.35410 0 94 707.00000 694.35410 1.79% - 0s 0 0 694.41389 0 98 707.00000 694.41389 1.78% - 0s 0 0 694.45120 0 98 707.00000 694.45120 1.77% - 0s 0 0 694.45962 0 98 707.00000 694.45962 1.77% - 0s 0 0 694.46419 0 97 707.00000 694.46419 1.77% - 0s 0 0 694.47346 0 100 707.00000 694.47346 1.77% - 0s 0 0 694.52577 0 98 707.00000 694.52577 1.76% - 0s 0 0 694.52577 0 102 707.00000 694.52577 1.76% - 0s 0 0 694.52950 0 95 707.00000 694.52950 1.76% - 0s 0 0 694.52950 0 99 707.00000 694.52950 1.76% - 0s 0 0 694.52950 0 99 707.00000 694.52950 1.76% - 1s H 0 0 705.0000000 694.52950 1.49% - 1s 0 2 694.53692 0 99 705.00000 694.53692 1.48% - 1s * 19 16 14 701.0000000 695.29160 0.81% 23.7 1s Cutting planes: Gomory: 5 MIR: 3 Zero half: 14 Explored 861 nodes (11621 simplex iterations) in 2.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (3, 74), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (34, 74), (35, 47), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (32, 56), (33, 45), (4, 41), (4, 45), (19, 51), (19, 25), (17, 64), (40, 73), (10, 33), (10, 40), (13, 41), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(36, 54), (39, 66), (8, 36), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] Optimize a model with 225 rows, 2850 columns and 76418 nonzeros Presolve time: 0.06s Presolved: 225 rows, 2850 columns, 76418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934597e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.45974 0 80 2820.00000 693.45974 75.4% - 0s Another try with MIP start H 0 0 704.0000000 693.45974 1.50% - 0s 0 0 694.06384 0 89 704.00000 694.06384 1.41% - 0s 0 0 694.06384 0 83 704.00000 694.06384 1.41% - 0s 0 0 694.18922 0 88 704.00000 694.18922 1.39% - 0s 0 0 694.51475 0 89 704.00000 694.51475 1.35% - 0s 0 0 694.53201 0 90 704.00000 694.53201 1.34% - 0s 0 0 694.53201 0 92 704.00000 694.53201 1.34% - 0s 0 0 694.53201 0 94 704.00000 694.53201 1.34% - 0s 0 2 694.56232 0 94 704.00000 694.56232 1.34% - 0s H 55 32 703.0000000 695.68896 1.04% 15.8 1s H 112 46 701.0000000 695.80037 0.74% 16.1 1s Cutting planes: Gomory: 4 MIR: 1 Zero half: 6 Explored 771 nodes (10118 simplex iterations) in 1.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (26, 56), (28, 46), (28, 53), (30, 46), (30, 49), (32, 56), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 23), (4, 45), (4, 52), (33, 51), (33, 45), (43, 65), (43, 44), (34, 74), (17, 64), (17, 50), (19, 51), (19, 25), (25, 50), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 227 rows, 2850 columns and 77203 nonzeros Presolve time: 0.06s Presolved: 227 rows, 2850 columns, 77203 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934597e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.45974 0 80 2820.00000 693.45974 75.4% - 0s Another try with MIP start H 0 0 705.0000000 693.45974 1.64% - 0s 0 0 694.06384 0 89 705.00000 694.06384 1.55% - 0s 0 0 694.06384 0 83 705.00000 694.06384 1.55% - 0s 0 0 694.18922 0 90 705.00000 694.18922 1.53% - 0s 0 0 694.52824 0 93 705.00000 694.52824 1.49% - 0s 0 0 694.56831 0 95 705.00000 694.56831 1.48% - 0s 0 0 694.72259 0 98 705.00000 694.72259 1.46% - 0s 0 0 694.72259 0 101 705.00000 694.72259 1.46% - 0s 0 0 694.72259 0 99 705.00000 694.72259 1.46% - 0s 0 0 694.72259 0 100 705.00000 694.72259 1.46% - 0s 0 2 694.72526 0 99 705.00000 694.72526 1.46% - 1s * 153 102 31 703.0000000 695.92365 1.01% 15.9 1s * 176 87 19 702.0000000 696.18718 0.83% 15.6 1s * 1668 198 29 701.0000000 698.57745 0.35% 14.6 3s Cutting planes: Gomory: 4 MIR: 2 Zero half: 6 Explored 2023 nodes (28157 simplex iterations) in 3.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (4, 17), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (30, 46), (30, 49), (32, 56), (33, 45), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 228 rows, 2850 columns and 78743 nonzeros Presolve time: 0.06s Presolved: 228 rows, 2850 columns, 78743 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934597e+02, 204 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.45974 0 80 2820.00000 693.45974 75.4% - 0s Another try with MIP start H 0 0 705.0000000 693.45974 1.64% - 0s 0 0 694.16975 0 86 705.00000 694.16975 1.54% - 0s 0 0 694.16975 0 80 705.00000 694.16975 1.54% - 0s 0 0 694.23965 0 86 705.00000 694.23965 1.53% - 0s 0 0 694.70249 0 94 705.00000 694.70249 1.46% - 0s H 0 0 704.0000000 694.70249 1.32% - 0s 0 0 694.72341 0 92 704.00000 694.72341 1.32% - 0s 0 0 694.73293 0 94 704.00000 694.73293 1.32% - 0s 0 0 694.76475 0 95 704.00000 694.76475 1.31% - 0s 0 0 694.76475 0 97 704.00000 694.76475 1.31% - 0s 0 0 694.79352 0 95 704.00000 694.79352 1.31% - 0s 0 0 694.79451 0 100 704.00000 694.79451 1.31% - 0s 0 0 694.82494 0 93 704.00000 694.82494 1.30% - 0s 0 0 694.82494 0 95 704.00000 694.82494 1.30% - 0s 0 0 694.85075 0 96 704.00000 694.85075 1.30% - 0s 0 0 694.85075 0 98 704.00000 694.85075 1.30% - 0s 0 0 694.86251 0 95 704.00000 694.86251 1.30% - 0s 0 0 694.86251 0 97 704.00000 694.86251 1.30% - 0s 0 0 694.87368 0 95 704.00000 694.87368 1.30% - 0s 0 0 694.87368 0 97 704.00000 694.87368 1.30% - 0s 0 0 694.88133 0 95 704.00000 694.88133 1.30% - 0s 0 0 694.88332 0 98 704.00000 694.88332 1.29% - 0s 0 2 694.88649 0 98 704.00000 694.88649 1.29% - 1s H 95 64 703.0000000 696.00602 0.99% 16.3 1s * 681 271 40 702.0000000 697.89063 0.59% 15.9 3s H 2039 0 701.0000000 700.15217 0.12% 13.3 4s Cutting planes: Gomory: 4 MIR: 2 Zero half: 7 Explored 2039 nodes (27742 simplex iterations) in 4.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.010000000000e+02, best bound 7.010000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 34), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (17, 52), (17, 64), (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, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 74), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 229 rows, 2850 columns and 79733 nonzeros Presolve time: 0.06s Presolved: 229 rows, 2850 columns, 79733 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934597e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.45974 0 80 2820.00000 693.45974 75.4% - 0s Another try with MIP start H 0 0 705.0000000 693.45974 1.64% - 0s 0 0 694.16975 0 86 705.00000 694.16975 1.54% - 0s 0 0 694.16975 0 80 705.00000 694.16975 1.54% - 0s 0 0 694.23965 0 86 705.00000 694.23965 1.53% - 0s 0 0 694.70249 0 94 705.00000 694.70249 1.46% - 0s 0 0 694.73388 0 95 705.00000 694.73388 1.46% - 0s 0 0 694.75224 0 98 705.00000 694.75224 1.45% - 0s 0 0 694.76144 0 96 705.00000 694.76144 1.45% - 0s 0 0 694.76234 0 95 705.00000 694.76234 1.45% - 0s 0 0 694.76569 0 100 705.00000 694.76569 1.45% - 0s 0 0 694.82853 0 90 705.00000 694.82853 1.44% - 0s 0 0 694.92483 0 93 705.00000 694.92483 1.43% - 0s 0 0 695.00939 0 94 705.00000 695.00939 1.42% - 0s 0 0 695.02227 0 102 705.00000 695.02227 1.42% - 0s 0 0 695.02227 0 104 705.00000 695.02227 1.42% - 0s 0 0 695.08270 0 92 705.00000 695.08270 1.41% - 0s 0 0 695.08472 0 97 705.00000 695.08472 1.41% - 0s 0 0 695.08472 0 99 705.00000 695.08472 1.41% - 0s 0 0 695.08472 0 99 705.00000 695.08472 1.41% - 1s 0 2 695.08706 0 99 705.00000 695.08706 1.41% - 1s H 27 20 703.0000000 695.74017 1.03% 15.6 1s * 65 40 27 702.0000000 696.57458 0.77% 15.4 1s Cutting planes: Gomory: 3 MIR: 1 Zero half: 10 Explored 1871 nodes (26387 simplex iterations) in 4.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (8, 36), (11, 32), (11, 39), (12, 39), (12, 66), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 64), (34, 74), (36, 54), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(3, 75), (37, 70), (37, 48), (70, 72), (21, 71), (21, 38), (22, 75), (22, 48), (6, 49), (6, 38), (61, 71), (61, 72), (31, 49)] Optimize a model with 231 rows, 2850 columns and 80320 nonzeros Presolve time: 0.06s Presolved: 231 rows, 2850 columns, 80320 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.934597e+02, 203 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 693.45974 0 80 2820.00000 693.45974 75.4% - 0s Another try with MIP start H 0 0 705.0000000 693.45974 1.64% - 0s 0 0 694.16975 0 86 705.00000 694.16975 1.54% - 0s 0 0 694.16975 0 80 705.00000 694.16975 1.54% - 0s 0 0 694.23965 0 86 705.00000 694.23965 1.53% - 0s 0 0 694.71069 0 94 705.00000 694.71069 1.46% - 0s 0 0 694.77165 0 92 705.00000 694.77165 1.45% - 0s 0 0 694.77165 0 94 705.00000 694.77165 1.45% - 0s 0 0 694.78179 0 95 705.00000 694.78179 1.45% - 0s 0 0 694.80469 0 99 705.00000 694.80469 1.45% - 0s 0 0 694.85118 0 95 705.00000 694.85118 1.44% - 0s 0 0 694.85118 0 98 705.00000 694.85118 1.44% - 0s 0 0 694.90051 0 99 705.00000 694.90051 1.43% - 0s 0 0 694.90051 0 101 705.00000 694.90051 1.43% - 0s 0 0 694.91009 0 98 705.00000 694.91009 1.43% - 0s 0 0 694.91009 0 98 705.00000 694.91009 1.43% - 1s 0 2 694.91039 0 98 705.00000 694.91039 1.43% - 1s * 227 96 28 702.0000000 696.37728 0.80% 14.0 1s Cutting planes: Gomory: 3 MIR: 2 Zero half: 8 Explored 1939 nodes (26532 simplex iterations) in 4.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (8, 36), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (36, 54), (39, 66), (40, 73), (59, 73), (66, 67)] adding cut for [(48, 49), (28, 53), (6, 38), (6, 16), (9, 47), (9, 20), (14, 55), (14, 58), (47, 53), (16, 58), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(2, 74), (2, 23), (7, 34), (43, 65), (43, 44), (34, 74), (17, 64), (17, 52), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 234 rows, 2850 columns and 80897 nonzeros Presolve time: 0.06s Presolved: 234 rows, 2850 columns, 80897 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 711.0000000 694.16354 2.37% - 0s H 0 0 705.0000000 694.16354 1.54% - 0s 0 0 694.51398 0 90 705.00000 694.51398 1.49% - 0s 0 0 694.51398 0 82 705.00000 694.51398 1.49% - 0s 0 0 694.73986 0 88 705.00000 694.73986 1.46% - 0s 0 0 694.84195 0 92 705.00000 694.84195 1.44% - 0s 0 0 694.91225 0 95 705.00000 694.91225 1.43% - 0s 0 0 694.92461 0 96 705.00000 694.92461 1.43% - 0s 0 0 695.05766 0 91 705.00000 695.05766 1.41% - 0s 0 0 695.07497 0 97 705.00000 695.07497 1.41% - 0s 0 0 695.09794 0 100 705.00000 695.09794 1.40% - 0s 0 0 695.11025 0 95 705.00000 695.11025 1.40% - 0s 0 0 695.11503 0 100 705.00000 695.11503 1.40% - 0s 0 0 695.13572 0 102 705.00000 695.13572 1.40% - 0s 0 0 695.14816 0 100 705.00000 695.14816 1.40% - 0s 0 0 695.14913 0 100 705.00000 695.14913 1.40% - 0s 0 0 695.15340 0 105 705.00000 695.15340 1.40% - 0s 0 0 695.15340 0 105 705.00000 695.15340 1.40% - 0s 0 2 695.18323 0 105 705.00000 695.18323 1.39% - 0s H 146 119 704.0000000 696.12315 1.12% 10.8 1s H 320 168 702.0000000 696.24894 0.82% 11.4 1s Cutting planes: Gomory: 4 MIR: 1 Zero half: 9 Explored 1690 nodes (23364 simplex iterations) in 3.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (9, 36), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 53), (29, 63), (29, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (47, 53), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(66, 67), (33, 51), (39, 66), (8, 54), (10, 33), (10, 40), (11, 32), (11, 39), (12, 67), (12, 60), (13, 59), (15, 54), (15, 60), (40, 73), (19, 51), (19, 56), (26, 32), (26, 56), (59, 73)] adding cut for [(34, 64), (17, 34), (17, 50), (24, 64), (24, 57), (25, 50), (25, 57)] Optimize a model with 237 rows, 2850 columns and 81573 nonzeros Presolve time: 0.06s Presolved: 237 rows, 2850 columns, 81573 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 192 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 707.0000000 694.16354 1.82% - 0s H 0 0 705.0000000 694.16354 1.54% - 0s 0 0 694.51398 0 90 705.00000 694.51398 1.49% - 0s 0 0 694.51398 0 82 705.00000 694.51398 1.49% - 0s 0 0 694.73986 0 88 705.00000 694.73986 1.46% - 0s 0 0 694.83024 0 89 705.00000 694.83024 1.44% - 0s 0 0 694.86497 0 91 705.00000 694.86497 1.44% - 0s 0 0 694.87526 0 95 705.00000 694.87526 1.44% - 0s 0 0 695.00542 0 89 705.00000 695.00542 1.42% - 0s 0 0 695.00542 0 91 705.00000 695.00542 1.42% - 0s 0 0 695.09522 0 91 705.00000 695.09522 1.40% - 0s 0 0 695.09522 0 92 705.00000 695.09522 1.40% - 0s 0 0 695.12163 0 94 705.00000 695.12163 1.40% - 0s 0 0 695.12163 0 95 705.00000 695.12163 1.40% - 0s 0 0 695.15557 0 100 705.00000 695.15557 1.40% - 0s 0 0 695.16139 0 99 705.00000 695.16139 1.40% - 0s 0 0 695.16477 0 99 705.00000 695.16477 1.40% - 0s 0 0 695.16653 0 99 705.00000 695.16653 1.39% - 0s 0 2 695.16683 0 99 705.00000 695.16683 1.39% - 1s * 83 56 15 704.0000000 696.29438 1.09% 18.4 1s * 140 80 24 703.0000000 696.72856 0.89% 18.0 1s * 225 68 14 702.0000000 697.41841 0.65% 16.8 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 14 Explored 989 nodes (14267 simplex iterations) in 2.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (26, 56), (29, 62), (30, 46), (30, 49), (31, 49), (31, 75), (32, 56), (34, 64), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (63, 74), (63, 75), (70, 72)] Optimize a model with 238 rows, 2850 columns and 82798 nonzeros Presolve time: 0.06s Presolved: 238 rows, 2850 columns, 82798 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 210 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 705.0000000 694.16354 1.54% - 0s 0 0 694.54032 0 85 705.00000 694.54032 1.48% - 0s 0 0 694.54032 0 79 705.00000 694.54032 1.48% - 0s 0 0 694.85391 0 88 705.00000 694.85391 1.44% - 0s 0 0 694.92622 0 89 705.00000 694.92622 1.43% - 0s 0 0 694.97009 0 94 705.00000 694.97009 1.42% - 0s 0 0 694.97009 0 95 705.00000 694.97009 1.42% - 0s 0 0 695.01964 0 97 705.00000 695.01964 1.42% - 0s 0 0 695.01964 0 99 705.00000 695.01964 1.42% - 0s 0 0 695.04972 0 91 705.00000 695.04972 1.41% - 0s 0 0 695.05534 0 99 705.00000 695.05534 1.41% - 0s 0 0 695.05757 0 99 705.00000 695.05757 1.41% - 0s 0 0 695.05757 0 101 705.00000 695.05757 1.41% - 0s 0 0 695.05757 0 100 705.00000 695.05757 1.41% - 1s 0 2 695.07486 0 100 705.00000 695.07486 1.41% - 1s * 45 30 39 703.0000000 696.23165 0.96% 15.7 1s * 1059 173 29 702.0000000 698.36922 0.52% 15.6 3s Cutting planes: Gomory: 3 MIR: 1 Zero half: 9 Explored 1723 nodes (25627 simplex iterations) in 3.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (9, 20), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 74), (35, 47), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(3, 63), (37, 70), (37, 72), (14, 55), (14, 28), (61, 71), (61, 72), (16, 58), (21, 71), (21, 38), (55, 58), (6, 16), (6, 38), (28, 53), (29, 62), (29, 63), (62, 70)] Optimize a model with 240 rows, 2850 columns and 83447 nonzeros Presolve time: 0.06s Presolved: 240 rows, 2850 columns, 83447 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 704.0000000 694.16354 1.40% - 0s 0 0 694.54032 0 85 704.00000 694.54032 1.34% - 0s 0 0 694.54032 0 81 704.00000 694.54032 1.34% - 0s 0 0 694.85391 0 88 704.00000 694.85391 1.30% - 0s 0 0 694.92622 0 89 704.00000 694.92622 1.29% - 0s 0 0 694.94318 0 91 704.00000 694.94318 1.29% - 0s 0 0 694.97046 0 94 704.00000 694.97046 1.28% - 0s 0 0 694.97046 0 96 704.00000 694.97046 1.28% - 0s 0 0 694.97589 0 94 704.00000 694.97589 1.28% - 0s 0 0 694.97740 0 94 704.00000 694.97740 1.28% - 0s 0 0 694.99653 0 96 704.00000 694.99653 1.28% - 0s 0 0 695.00641 0 93 704.00000 695.00641 1.28% - 0s 0 0 695.01674 0 101 704.00000 695.01674 1.28% - 0s 0 0 695.02810 0 95 704.00000 695.02810 1.27% - 0s 0 0 695.03768 0 104 704.00000 695.03768 1.27% - 0s 0 0 695.04434 0 101 704.00000 695.04434 1.27% - 0s 0 0 695.05213 0 97 704.00000 695.05213 1.27% - 0s 0 0 695.06180 0 99 704.00000 695.06180 1.27% - 0s 0 0 695.06231 0 99 704.00000 695.06231 1.27% - 0s 0 0 695.06460 0 103 704.00000 695.06460 1.27% - 0s 0 2 695.07527 0 103 704.00000 695.07527 1.27% - 1s H 63 42 703.0000000 696.05627 0.99% 14.7 1s * 551 147 11 702.0000000 698.40000 0.51% 14.5 2s Cutting planes: Gomory: 3 MIR: 4 Zero half: 12 Explored 1169 nodes (15859 simplex iterations) in 2.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (32, 40), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (41, 45), (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, 34), (9, 47), (34, 74), (35, 47), (35, 53), (31, 75), (31, 49), (28, 46), (28, 53), (29, 75), (29, 63), (30, 46), (30, 49)] adding cut for [(19, 51), (19, 56), (33, 51), (10, 33), (10, 26), (26, 56)] Optimize a model with 243 rows, 2850 columns and 84485 nonzeros Presolve time: 0.07s Presolved: 243 rows, 2850 columns, 84485 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 219 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 716.0000000 694.16354 3.05% - 0s H 0 0 705.0000000 694.16354 1.54% - 0s 0 0 694.54032 0 85 705.00000 694.54032 1.48% - 0s 0 0 694.54032 0 79 705.00000 694.54032 1.48% - 0s 0 0 694.85391 0 88 705.00000 694.85391 1.44% - 0s 0 0 694.92622 0 89 705.00000 694.92622 1.43% - 0s 0 0 694.94408 0 91 705.00000 694.94408 1.43% - 0s 0 0 694.96659 0 89 705.00000 694.96659 1.42% - 0s 0 0 694.97046 0 95 705.00000 694.97046 1.42% - 0s 0 0 694.97589 0 95 705.00000 694.97589 1.42% - 0s 0 0 694.98877 0 95 705.00000 694.98877 1.42% - 0s 0 0 695.00175 0 97 705.00000 695.00175 1.42% - 0s 0 0 695.00748 0 103 705.00000 695.00748 1.42% - 0s 0 0 695.02751 0 97 705.00000 695.02751 1.41% - 0s 0 0 695.04038 0 98 705.00000 695.04038 1.41% - 0s 0 0 695.04111 0 101 705.00000 695.04111 1.41% - 0s 0 0 695.04653 0 104 705.00000 695.04653 1.41% - 0s 0 0 695.06614 0 100 705.00000 695.06614 1.41% - 0s 0 0 695.06624 0 101 705.00000 695.06624 1.41% - 0s 0 0 695.07440 0 102 705.00000 695.07440 1.41% - 0s 0 0 695.07462 0 105 705.00000 695.07462 1.41% - 0s 0 0 695.07704 0 105 705.00000 695.07704 1.41% - 0s 0 2 695.10128 0 105 705.00000 695.10128 1.40% - 1s * 191 137 18 704.0000000 696.19248 1.11% 15.1 1s * 268 147 25 703.0000000 696.34305 0.95% 15.4 1s * 1906 296 26 702.0000000 699.29023 0.39% 15.1 3s Cutting planes: Gomory: 3 MIR: 1 Zero half: 9 Explored 2583 nodes (37500 simplex iterations) in 4.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 41), (4, 45), (6, 16), (6, 38), (9, 36), (9, 47), (10, 33), (10, 40), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (31, 49), (31, 75), (32, 56), (32, 73), (33, 45), (34, 74), (35, 47), (35, 53), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65), (70, 72)] adding cut for [(39, 66), (8, 54), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] Optimize a model with 245 rows, 2850 columns and 86015 nonzeros Presolve time: 0.07s Presolved: 245 rows, 2850 columns, 86015 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 711.0000000 694.16354 2.37% - 0s 0 0 694.70593 0 88 711.00000 694.70593 2.29% - 0s 0 0 694.70593 0 82 711.00000 694.70593 2.29% - 0s 0 0 695.00921 0 92 711.00000 695.00921 2.25% - 0s 0 0 695.10591 0 93 711.00000 695.10591 2.24% - 0s 0 0 695.10696 0 95 711.00000 695.10696 2.24% - 0s 0 0 695.13131 0 98 711.00000 695.13131 2.23% - 0s 0 0 695.15572 0 97 711.00000 695.15572 2.23% - 0s 0 0 695.16578 0 100 711.00000 695.16578 2.23% - 0s 0 0 695.16732 0 105 711.00000 695.16732 2.23% - 0s 0 0 695.18818 0 102 711.00000 695.18818 2.22% - 1s 0 0 695.19505 0 100 711.00000 695.19505 2.22% - 1s 0 0 695.21916 0 105 711.00000 695.21916 2.22% - 1s 0 0 695.27198 0 97 711.00000 695.27198 2.21% - 1s 0 0 695.28939 0 103 711.00000 695.28939 2.21% - 1s 0 0 695.29722 0 106 711.00000 695.29722 2.21% - 1s 0 0 695.29722 0 106 711.00000 695.29722 2.21% - 1s 0 2 695.29793 0 106 711.00000 695.29793 2.21% - 1s H 68 68 709.0000000 695.40084 1.92% 19.6 1s * 74 66 46 708.0000000 695.40084 1.78% 19.0 1s H 143 108 707.0000000 696.07509 1.55% 16.8 1s * 199 106 29 705.0000000 696.17087 1.25% 15.8 1s * 360 117 13 703.0000000 696.42761 0.93% 16.4 1s H 1260 142 702.0000000 698.90237 0.44% 15.8 4s Cutting planes: Gomory: 10 MIR: 1 Zero half: 2 Explored 1642 nodes (25085 simplex iterations) in 4.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 38), (6, 49), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 62), (29, 75), (30, 46), (30, 49), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(9, 47), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (13, 59), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (20, 36), (20, 55), (26, 56), (28, 53), (32, 56), (35, 47), (36, 54), (39, 66), (40, 73), (59, 73), (66, 67)] Optimize a model with 247 rows, 2850 columns and 86894 nonzeros Presolve time: 0.07s Presolved: 247 rows, 2850 columns, 86894 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.16354 2.91% - 0s H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 92 712.00000 695.00921 2.39% - 0s 0 0 695.10971 0 93 712.00000 695.10971 2.37% - 0s 0 0 695.11159 0 96 712.00000 695.11159 2.37% - 0s 0 0 695.13213 0 97 712.00000 695.13213 2.37% - 0s 0 0 695.14346 0 97 712.00000 695.14346 2.37% - 0s 0 0 695.14346 0 98 712.00000 695.14346 2.37% - 0s 0 0 695.15826 0 97 712.00000 695.15826 2.37% - 0s 0 0 695.16072 0 103 712.00000 695.16072 2.37% - 0s 0 0 695.27300 0 92 712.00000 695.27300 2.35% - 0s 0 0 695.27743 0 98 712.00000 695.27743 2.35% - 1s 0 0 695.31638 0 100 712.00000 695.31638 2.34% - 1s 0 0 695.31733 0 98 712.00000 695.31733 2.34% - 1s 0 0 695.33503 0 99 712.00000 695.33503 2.34% - 1s 0 0 695.33503 0 101 712.00000 695.33503 2.34% - 1s 0 0 695.34065 0 104 712.00000 695.34065 2.34% - 1s 0 0 695.34771 0 106 712.00000 695.34771 2.34% - 1s 0 0 695.35550 0 106 712.00000 695.35550 2.34% - 1s 0 0 695.36250 0 105 712.00000 695.36250 2.34% - 1s 0 0 695.36612 0 110 712.00000 695.36612 2.34% - 1s 0 0 695.36841 0 109 712.00000 695.36841 2.34% - 1s 0 0 695.38596 0 102 712.00000 695.38596 2.33% - 1s 0 0 695.38976 0 105 712.00000 695.38976 2.33% - 1s 0 2 695.38976 0 105 712.00000 695.38976 2.33% - 1s H 27 27 705.0000000 695.39104 1.36% 19.1 1s * 536 318 32 704.0000000 697.11430 0.98% 15.1 2s * 910 426 27 703.0000000 697.54992 0.78% 15.9 4s 1068 428 698.89047 22 83 703.00000 698.06422 0.70% 15.6 5s * 2131 208 30 702.0000000 699.77143 0.32% 14.8 6s Cutting planes: Gomory: 6 MIR: 2 Zero half: 5 Explored 2490 nodes (35517 simplex iterations) in 6.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.020000000000e+02, best bound 7.020000000000e+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), (19, 25), (19, 51), (20, 55), (22, 62), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 63), (32, 56), (35, 53), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (16, 58), (21, 38), (21, 71), (31, 49), (70, 72), (61, 71), (61, 72), (30, 46), (30, 58), (37, 48), (37, 70)] Optimize a model with 249 rows, 2850 columns and 87527 nonzeros Presolve time: 0.07s Presolved: 249 rows, 2850 columns, 87527 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 204 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 92 712.00000 695.00921 2.39% - 0s 0 0 695.10591 0 93 712.00000 695.10591 2.37% - 0s 0 0 695.10591 0 96 712.00000 695.10591 2.37% - 0s 0 0 695.13489 0 97 712.00000 695.13489 2.37% - 0s 0 0 695.17853 0 102 712.00000 695.17853 2.36% - 0s 0 0 695.18219 0 100 712.00000 695.18219 2.36% - 0s 0 0 695.18473 0 104 712.00000 695.18473 2.36% - 0s 0 0 695.21289 0 96 712.00000 695.21289 2.36% - 0s 0 0 695.21933 0 102 712.00000 695.21933 2.36% - 0s 0 0 695.22251 0 106 712.00000 695.22251 2.36% - 0s 0 0 695.22471 0 105 712.00000 695.22471 2.36% - 0s 0 0 695.23301 0 103 712.00000 695.23301 2.35% - 1s 0 0 695.23301 0 103 712.00000 695.23301 2.35% - 1s 0 0 695.23681 0 108 712.00000 695.23681 2.35% - 1s 0 2 695.23703 0 108 712.00000 695.23703 2.35% - 1s H 54 54 709.0000000 695.33447 1.93% 23.0 1s * 75 56 48 706.0000000 695.33447 1.51% 20.6 1s * 198 142 62 705.0000000 695.72238 1.32% 15.5 1s H 640 378 704.0000000 697.11070 0.98% 15.5 3s H 706 370 703.0000000 697.11070 0.84% 15.7 3s 1749 307 700.24725 28 73 703.00000 699.67497 0.47% 14.8 5s Cutting planes: Gomory: 8 MIR: 2 Zero half: 2 Explored 3024 nodes (41338 simplex iterations) in 6.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 52), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (25, 50), (26, 51), (26, 56), (30, 46), (30, 49), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 64), (2, 74), (43, 65), (43, 44), (34, 74), (29, 62), (29, 63), (22, 75), (22, 62), (23, 65), (23, 63), (24, 64), (24, 57), (31, 75), (42, 44), (42, 57)] Optimize a model with 251 rows, 2850 columns and 88258 nonzeros Presolve time: 0.07s Presolved: 251 rows, 2850 columns, 88258 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 198 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 705.0000000 694.16354 1.54% - 0s 0 0 694.56117 0 88 705.00000 694.56117 1.48% - 0s 0 0 694.56117 0 79 705.00000 694.56117 1.48% - 0s 0 0 694.88424 0 88 705.00000 694.88424 1.43% - 0s 0 0 694.94592 0 89 705.00000 694.94592 1.43% - 0s 0 0 694.94602 0 91 705.00000 694.94602 1.43% - 0s 0 0 694.97564 0 95 705.00000 694.97564 1.42% - 0s 0 0 694.97827 0 97 705.00000 694.97827 1.42% - 0s 0 0 695.14142 0 92 705.00000 695.14142 1.40% - 0s 0 0 695.14953 0 92 705.00000 695.14953 1.40% - 0s 0 0 695.17874 0 97 705.00000 695.17874 1.39% - 0s 0 0 695.17879 0 100 705.00000 695.17879 1.39% - 0s 0 0 695.18274 0 101 705.00000 695.18274 1.39% - 0s 0 2 695.18435 0 101 705.00000 695.18435 1.39% - 0s H 243 162 704.0000000 696.75079 1.03% 14.4 1s * 994 425 33 703.0000000 698.62129 0.62% 15.4 2s Cutting planes: Gomory: 3 MIR: 2 Zero half: 8 Explored 3048 nodes (42014 simplex iterations) in 4.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (8, 54), (9, 36), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (19, 51), (19, 56), (20, 55), (26, 56), (28, 53), (32, 59), (33, 45), (33, 51), (36, 54), (39, 66), (40, 73), (47, 53), (59, 73), (60, 67)] adding cut for [(2, 44), (2, 63), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (30, 46), (30, 49), (31, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] Optimize a model with 253 rows, 2850 columns and 89030 nonzeros Presolve time: 0.07s Presolved: 253 rows, 2850 columns, 89030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 82 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 89 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 90 712.00000 695.00921 2.39% - 0s 0 0 695.10820 0 91 712.00000 695.10820 2.37% - 0s 0 0 695.13564 0 97 712.00000 695.13564 2.37% - 0s 0 0 695.16562 0 96 712.00000 695.16562 2.36% - 0s 0 0 695.16994 0 98 712.00000 695.16994 2.36% - 0s 0 0 695.16994 0 100 712.00000 695.16994 2.36% - 0s 0 0 695.19775 0 98 712.00000 695.19775 2.36% - 0s 0 0 695.19775 0 100 712.00000 695.19775 2.36% - 0s 0 0 695.21858 0 96 712.00000 695.21858 2.36% - 0s 0 0 695.21934 0 99 712.00000 695.21934 2.36% - 0s 0 2 695.22021 0 97 712.00000 695.22021 2.36% - 1s * 29 27 23 704.0000000 696.34031 1.09% 19.7 1s * 391 162 16 703.0000000 698.14837 0.69% 16.0 2s 1597 166 701.98667 24 55 703.00000 699.77778 0.46% 15.6 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 2295 nodes (33690 simplex iterations) in 5.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (13, 41), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (26, 56), (28, 46), (28, 53), (30, 46), (30, 49), (32, 56), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (41, 73), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 74), (2, 23), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (34, 74), (17, 64), (17, 50), (19, 51), (19, 25), (25, 50), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 255 rows, 2850 columns and 89796 nonzeros Presolve time: 0.07s Presolved: 255 rows, 2850 columns, 89796 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 208 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 90 712.00000 695.00921 2.39% - 0s 0 0 695.10820 0 91 712.00000 695.10820 2.37% - 0s 0 0 695.13564 0 97 712.00000 695.13564 2.37% - 0s 0 0 695.16562 0 96 712.00000 695.16562 2.36% - 0s 0 0 695.16994 0 98 712.00000 695.16994 2.36% - 0s 0 0 695.16994 0 100 712.00000 695.16994 2.36% - 0s 0 0 695.19775 0 98 712.00000 695.19775 2.36% - 0s 0 0 695.19775 0 100 712.00000 695.19775 2.36% - 0s 0 0 695.21858 0 96 712.00000 695.21858 2.36% - 0s 0 0 695.21934 0 99 712.00000 695.21934 2.36% - 0s 0 0 695.21934 0 97 712.00000 695.21934 2.36% - 1s H 0 0 711.0000000 695.21934 2.22% - 1s 0 2 695.22021 0 97 711.00000 695.22021 2.22% - 1s * 30 27 24 704.0000000 696.34031 1.09% 18.9 1s * 195 76 14 703.0000000 697.35847 0.80% 16.3 2s 1569 131 701.50000 31 67 703.00000 699.77451 0.46% 15.3 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 2249 nodes (32220 simplex iterations) in 5.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (35, 47), (37, 48), (37, 70), (47, 53), (49, 75), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(8, 36), (9, 20), (9, 36), (11, 32), (11, 59), (12, 54), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (20, 60), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (39, 59), (39, 66), (50, 57), (66, 67)] Optimize a model with 257 rows, 2850 columns and 90348 nonzeros Presolve time: 0.07s Presolved: 257 rows, 2850 columns, 90348 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 90 712.00000 695.00921 2.39% - 0s 0 0 695.10820 0 91 712.00000 695.10820 2.37% - 0s 0 0 695.13588 0 97 712.00000 695.13588 2.37% - 0s 0 0 695.17037 0 98 712.00000 695.17037 2.36% - 0s 0 0 695.17724 0 98 712.00000 695.17724 2.36% - 0s 0 0 695.18247 0 101 712.00000 695.18247 2.36% - 0s 0 0 695.19360 0 99 712.00000 695.19360 2.36% - 0s 0 0 695.20543 0 104 712.00000 695.20543 2.36% - 0s 0 0 695.21628 0 104 712.00000 695.21628 2.36% - 0s 0 0 695.23151 0 104 712.00000 695.23151 2.36% - 0s 0 0 695.24175 0 95 712.00000 695.24175 2.35% - 0s 0 0 695.24958 0 100 712.00000 695.24958 2.35% - 0s 0 0 695.25648 0 100 712.00000 695.25648 2.35% - 0s 0 0 695.26665 0 106 712.00000 695.26665 2.35% - 0s 0 0 695.27455 0 105 712.00000 695.27455 2.35% - 1s 0 2 695.27605 0 105 712.00000 695.27605 2.35% - 1s H 54 46 706.0000000 695.28667 1.52% 21.6 1s * 56 39 35 705.0000000 695.28667 1.38% 21.4 1s * 100 65 31 704.0000000 695.32727 1.23% 18.1 1s H 600 272 703.0000000 697.71553 0.75% 15.2 2s 2246 293 701.86517 21 79 703.00000 700.06397 0.42% 14.9 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 3210 nodes (44747 simplex iterations) in 6.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 63), (32, 56), (36, 54), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (47, 53), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70)] Optimize a model with 258 rows, 2850 columns and 91338 nonzeros Presolve time: 0.07s Presolved: 258 rows, 2850 columns, 91338 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 197 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 709.0000000 694.16354 2.09% - 0s 0 0 694.70593 0 88 709.00000 694.70593 2.02% - 0s 0 0 694.70593 0 79 709.00000 694.70593 2.02% - 0s 0 0 695.00921 0 90 709.00000 695.00921 1.97% - 0s 0 0 695.10778 0 89 709.00000 695.10778 1.96% - 0s 0 0 695.10938 0 93 709.00000 695.10938 1.96% - 0s 0 0 695.15150 0 91 709.00000 695.15150 1.95% - 0s 0 0 695.15566 0 99 709.00000 695.15566 1.95% - 0s 0 0 695.15566 0 98 709.00000 695.15566 1.95% - 0s 0 0 695.15566 0 100 709.00000 695.15566 1.95% - 0s 0 0 695.17475 0 100 709.00000 695.17475 1.95% - 0s 0 0 695.17475 0 102 709.00000 695.17475 1.95% - 1s 0 0 695.18348 0 97 709.00000 695.18348 1.95% - 1s 0 0 695.18348 0 99 709.00000 695.18348 1.95% - 1s 0 0 695.18536 0 100 709.00000 695.18536 1.95% - 1s H 0 0 705.0000000 695.18536 1.39% - 1s 0 2 695.19456 0 100 705.00000 695.19456 1.39% - 1s * 116 70 21 704.0000000 696.86716 1.01% 16.4 2s * 141 65 17 703.0000000 696.92403 0.86% 17.4 2s 2072 220 700.90164 24 75 703.00000 700.32759 0.38% 15.4 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 2624 nodes (38665 simplex iterations) in 5.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (6, 16), (6, 38), (8, 36), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 34), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (30, 46), (30, 58), (32, 56), (32, 73), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (47, 53), (50, 57), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 259 rows, 2850 columns and 92664 nonzeros Presolve time: 0.07s Presolved: 259 rows, 2850 columns, 92664 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 92 712.00000 695.00921 2.39% - 0s 0 0 695.10974 0 92 712.00000 695.10974 2.37% - 0s 0 0 695.11161 0 95 712.00000 695.11161 2.37% - 0s 0 0 695.14498 0 95 712.00000 695.14498 2.37% - 0s 0 0 695.15988 0 103 712.00000 695.15988 2.37% - 0s 0 0 695.17928 0 104 712.00000 695.17928 2.36% - 0s 0 0 695.20248 0 100 712.00000 695.20248 2.36% - 0s 0 0 695.22774 0 101 712.00000 695.22774 2.36% - 1s 0 0 695.23419 0 102 712.00000 695.23419 2.35% - 1s 0 0 695.23419 0 104 712.00000 695.23419 2.35% - 1s 0 0 695.23800 0 97 712.00000 695.23800 2.35% - 1s 0 0 695.24055 0 106 712.00000 695.24055 2.35% - 1s 0 2 695.24954 0 106 712.00000 695.24954 2.35% - 1s * 68 57 55 711.0000000 696.43028 2.05% 14.7 1s * 70 56 56 710.0000000 696.43028 1.91% 14.5 1s * 72 51 55 708.0000000 696.43028 1.63% 14.2 1s * 121 58 22 705.0000000 696.59677 1.19% 16.4 2s H 359 150 704.0000000 697.95473 0.86% 16.6 2s * 1547 299 25 703.0000000 699.21008 0.54% 16.8 4s 1770 308 701.91716 27 65 703.00000 699.61957 0.48% 16.6 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 3023 nodes (46001 simplex iterations) in 6.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 63), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 25), (24, 57), (25, 50), (28, 53), (29, 62), (29, 75), (34, 64), (34, 74), (35, 47), (35, 53), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (36, 54), (39, 66), (8, 36), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (59, 73)] Optimize a model with 261 rows, 2850 columns and 93483 nonzeros Presolve time: 0.07s Presolved: 261 rows, 2850 columns, 93483 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s H 0 0 710.0000000 694.16354 2.23% - 0s 0 0 694.70593 0 89 710.00000 694.70593 2.15% - 0s 0 0 694.70593 0 82 710.00000 694.70593 2.15% - 0s 0 0 695.00921 0 92 710.00000 695.00921 2.11% - 0s 0 0 695.10974 0 92 710.00000 695.10974 2.10% - 0s 0 0 695.11161 0 95 710.00000 695.11161 2.10% - 0s 0 0 695.14498 0 95 710.00000 695.14498 2.09% - 0s 0 0 695.16008 0 103 710.00000 695.16008 2.09% - 0s 0 0 695.17866 0 100 710.00000 695.17866 2.09% - 0s 0 0 695.25608 0 93 710.00000 695.25608 2.08% - 0s 0 0 695.25608 0 96 710.00000 695.25608 2.08% - 0s 0 0 695.27448 0 97 710.00000 695.27448 2.07% - 1s 0 0 695.27448 0 99 710.00000 695.27448 2.07% - 1s 0 0 695.27484 0 99 710.00000 695.27484 2.07% - 1s 0 2 695.28286 0 99 710.00000 695.28286 2.07% - 1s H 61 46 709.0000000 696.44503 1.77% 18.5 2s * 94 64 38 708.0000000 696.44503 1.63% 16.6 2s * 271 168 21 707.0000000 697.48169 1.35% 16.3 2s H 450 234 706.0000000 698.02906 1.13% 16.9 2s * 491 138 19 703.0000000 698.10396 0.70% 16.7 2s 1994 224 701.00252 18 67 703.00000 700.13054 0.41% 16.1 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 6 Explored 2577 nodes (40637 simplex iterations) in 5.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (10, 40), (10, 41), (11, 32), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 73), (33, 45), (33, 51), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 262 rows, 2850 columns and 94659 nonzeros Presolve time: 0.07s Presolved: 262 rows, 2850 columns, 94659 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.16354 2.51% - 0s 0 0 694.70593 0 88 712.00000 694.70593 2.43% - 0s 0 0 694.70593 0 82 712.00000 694.70593 2.43% - 0s 0 0 695.00921 0 91 712.00000 695.00921 2.39% - 0s 0 0 695.10423 0 94 712.00000 695.10423 2.37% - 0s 0 0 695.14076 0 98 712.00000 695.14076 2.37% - 0s 0 0 695.17685 0 98 712.00000 695.17685 2.36% - 0s 0 0 695.18180 0 99 712.00000 695.18180 2.36% - 0s 0 0 695.18215 0 101 712.00000 695.18215 2.36% - 0s 0 0 695.19884 0 102 712.00000 695.19884 2.36% - 0s 0 0 695.20011 0 105 712.00000 695.20011 2.36% - 0s 0 0 695.20269 0 98 712.00000 695.20269 2.36% - 1s 0 0 695.21390 0 101 712.00000 695.21390 2.36% - 1s 0 0 695.21390 0 103 712.00000 695.21390 2.36% - 1s 0 0 695.21503 0 103 712.00000 695.21503 2.36% - 1s 0 0 695.21503 0 103 712.00000 695.21503 2.36% - 1s 0 2 695.21569 0 103 712.00000 695.21569 2.36% - 1s H 54 54 710.0000000 695.23139 2.08% 22.3 1s * 160 136 43 709.0000000 695.37525 1.92% 17.7 1s * 279 225 39 708.0000000 696.34783 1.65% 16.5 2s * 509 302 34 706.0000000 697.01580 1.27% 16.3 2s H 600 301 705.0000000 697.20333 1.11% 16.5 2s * 670 312 39 704.0000000 697.20333 0.97% 17.3 3s * 954 321 37 703.0000000 698.05506 0.70% 17.7 4s 1387 259 700.34421 17 80 703.00000 699.25172 0.53% 17.3 5s Cutting planes: Gomory: 8 MIR: 1 Zero half: 2 Mod-K: 1 Explored 3029 nodes (45453 simplex iterations) in 7.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (3, 63), (6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 74), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (49, 75), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 263 rows, 2850 columns and 95835 nonzeros Presolve time: 0.07s Presolved: 263 rows, 2850 columns, 95835 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.941635e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.16354 0 79 2820.00000 694.16354 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.16354 2.23% - 0s 0 0 694.70593 0 88 710.00000 694.70593 2.15% - 0s 0 0 694.70593 0 79 710.00000 694.70593 2.15% - 0s 0 0 695.01001 0 91 710.00000 695.01001 2.11% - 0s 0 0 695.10780 0 89 710.00000 695.10780 2.10% - 0s 0 0 695.10950 0 94 710.00000 695.10950 2.10% - 0s 0 0 695.15396 0 96 710.00000 695.15396 2.09% - 0s 0 0 695.15396 0 97 710.00000 695.15396 2.09% - 0s 0 0 695.15396 0 98 710.00000 695.15396 2.09% - 0s 0 0 695.15396 0 97 710.00000 695.15396 2.09% - 0s 0 0 695.15396 0 99 710.00000 695.15396 2.09% - 1s 0 2 695.15997 0 99 710.00000 695.15997 2.09% - 1s * 87 68 27 709.0000000 696.70878 1.73% 17.7 2s * 155 90 21 706.0000000 696.98156 1.28% 18.1 2s H 210 102 705.0000000 697.39261 1.08% 18.7 2s * 452 176 17 704.0000000 698.35058 0.80% 17.7 2s * 819 221 34 703.0000000 698.78035 0.60% 18.5 4s 1225 135 701.08333 25 71 703.00000 699.48782 0.50% 17.7 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 3 Explored 2112 nodes (33680 simplex iterations) in 5.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (6, 30), (6, 38), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (29, 63), (29, 75), (30, 46), (31, 49), (34, 64), (34, 74), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (17, 50), (17, 52), (19, 25), (19, 51), (20, 55), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (39, 66), (66, 67)] Optimize a model with 265 rows, 2850 columns and 96494 nonzeros Presolve time: 0.07s Presolved: 265 rows, 2850 columns, 96494 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.942737e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.27375 0 85 2820.00000 694.27375 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.27375 2.21% - 0s H 0 0 709.0000000 694.27375 2.08% - 0s 0 0 694.80022 0 87 709.00000 694.80022 2.00% - 0s 0 0 694.80022 0 83 709.00000 694.80022 2.00% - 0s 0 0 695.05972 0 90 709.00000 695.05972 1.97% - 0s 0 0 695.12141 0 96 709.00000 695.12141 1.96% - 0s 0 0 695.25986 0 98 709.00000 695.25986 1.94% - 0s 0 0 695.27048 0 102 709.00000 695.27048 1.94% - 0s 0 0 695.37514 0 104 709.00000 695.37514 1.92% - 0s 0 0 695.38912 0 103 709.00000 695.38912 1.92% - 0s 0 0 695.39987 0 106 709.00000 695.39987 1.92% - 0s 0 0 695.41650 0 102 709.00000 695.41650 1.92% - 0s 0 0 695.42182 0 109 709.00000 695.42182 1.92% - 0s 0 0 695.42182 0 109 709.00000 695.42182 1.92% - 1s 0 2 695.42240 0 109 709.00000 695.42240 1.92% - 1s H 93 81 708.0000000 695.47230 1.77% 18.8 1s * 202 144 40 706.0000000 695.50993 1.49% 17.2 1s H 600 342 705.0000000 696.84237 1.16% 17.1 2s H 641 352 703.0000000 696.84237 0.88% 17.7 3s 819 378 700.95349 15 100 703.00000 697.74515 0.75% 17.9 5s Cutting planes: Gomory: 6 MIR: 3 Zero half: 6 Explored 2132 nodes (36084 simplex iterations) in 6.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (35, 53), (39, 66), (50, 57), (60, 67)] 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), (30, 46), (37, 72), (37, 70)] Optimize a model with 267 rows, 2850 columns and 96950 nonzeros Presolve time: 0.07s Presolved: 267 rows, 2850 columns, 96950 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.942737e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.27375 0 83 2820.00000 694.27375 75.4% - 0s Another try with MIP start H 0 0 709.0000000 694.27375 2.08% - 0s 0 0 694.80022 0 87 709.00000 694.80022 2.00% - 0s 0 0 694.80022 0 84 709.00000 694.80022 2.00% - 0s 0 0 695.05893 0 93 709.00000 695.05893 1.97% - 0s 0 0 695.11615 0 100 709.00000 695.11615 1.96% - 0s 0 0 695.26160 0 96 709.00000 695.26160 1.94% - 0s 0 0 695.27266 0 100 709.00000 695.27266 1.94% - 0s 0 0 695.27994 0 101 709.00000 695.27994 1.94% - 0s 0 0 695.32150 0 101 709.00000 695.32150 1.93% - 0s 0 0 695.32750 0 103 709.00000 695.32750 1.93% - 0s 0 0 695.35685 0 101 709.00000 695.35685 1.92% - 1s 0 0 695.36491 0 105 709.00000 695.36491 1.92% - 1s 0 0 695.36942 0 104 709.00000 695.36942 1.92% - 1s 0 0 695.37058 0 105 709.00000 695.37058 1.92% - 1s 0 0 695.37962 0 104 709.00000 695.37962 1.92% - 1s 0 0 695.40344 0 102 709.00000 695.40344 1.92% - 1s 0 0 695.41948 0 105 709.00000 695.41948 1.92% - 1s 0 0 695.43386 0 104 709.00000 695.43386 1.91% - 1s 0 0 695.48246 0 99 709.00000 695.48246 1.91% - 1s 0 0 695.49706 0 101 709.00000 695.49706 1.90% - 1s 0 0 695.50746 0 99 709.00000 695.50746 1.90% - 1s 0 0 695.50746 0 101 709.00000 695.50746 1.90% - 1s 0 0 695.53305 0 99 709.00000 695.53305 1.90% - 1s 0 0 695.53493 0 101 709.00000 695.53493 1.90% - 1s 0 0 695.53981 0 101 709.00000 695.53981 1.90% - 1s 0 0 695.53981 0 101 709.00000 695.53981 1.90% - 1s 0 2 695.53999 0 101 709.00000 695.53999 1.90% - 1s H 101 99 708.0000000 696.01731 1.69% 14.2 1s H 528 375 707.0000000 696.40626 1.50% 13.9 2s H 669 382 705.0000000 696.84449 1.16% 14.5 2s H 976 452 703.0000000 697.46458 0.79% 16.0 5s Cutting planes: Gomory: 6 MIR: 3 Zero half: 3 Explored 2690 nodes (39029 simplex iterations) in 7.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (6, 16), (6, 30), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 63), (29, 75), (30, 46), (31, 49), (34, 74), (37, 70), (37, 72), (38, 58), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (39, 66), (50, 57), (60, 67)] Optimize a model with 269 rows, 2850 columns and 97604 nonzeros Presolve time: 0.07s Presolved: 269 rows, 2850 columns, 97604 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 709.0000000 694.37659 2.06% - 0s 0 0 694.87860 0 88 709.00000 694.87860 1.99% - 0s 0 0 694.87860 0 80 709.00000 694.87860 1.99% - 0s 0 0 695.19851 0 96 709.00000 695.19851 1.95% - 0s 0 0 695.23678 0 98 709.00000 695.23678 1.94% - 0s 0 0 695.27853 0 96 709.00000 695.27853 1.94% - 0s 0 0 695.27912 0 101 709.00000 695.27912 1.94% - 0s 0 0 695.30820 0 102 709.00000 695.30820 1.93% - 0s 0 0 695.30820 0 104 709.00000 695.30820 1.93% - 0s 0 0 695.32113 0 105 709.00000 695.32113 1.93% - 1s 0 0 695.33718 0 104 709.00000 695.33718 1.93% - 1s 0 0 695.35312 0 104 709.00000 695.35312 1.92% - 1s 0 0 695.36926 0 104 709.00000 695.36926 1.92% - 1s 0 0 695.38619 0 107 709.00000 695.38619 1.92% - 1s 0 0 695.39534 0 109 709.00000 695.39534 1.92% - 1s 0 0 695.39738 0 106 709.00000 695.39738 1.92% - 1s 0 0 695.40220 0 110 709.00000 695.40220 1.92% - 1s 0 0 695.40677 0 106 709.00000 695.40677 1.92% - 1s 0 0 695.41125 0 110 709.00000 695.41125 1.92% - 1s 0 0 695.41125 0 110 709.00000 695.41125 1.92% - 1s 0 2 695.43314 0 110 709.00000 695.43314 1.91% - 1s H 27 27 706.0000000 695.51057 1.49% 27.5 1s * 734 427 33 705.0000000 697.40179 1.08% 17.2 4s 818 434 cutoff 26 705.00000 697.65909 1.04% 17.2 5s * 1167 428 33 704.0000000 698.70329 0.75% 17.4 5s * 3256 210 25 703.0000000 701.01538 0.28% 16.1 8s Cutting planes: Gomory: 6 MIR: 3 Zero half: 5 Explored 3547 nodes (55521 simplex iterations) in 9.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.030000000000e+02, best bound 7.030000000000e+02, gap 0.0% adding cut for [(8, 36), (9, 36), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (19, 25), (19, 51), (20, 54), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (34, 64), (39, 66), (47, 53), (50, 57), (60, 67)] adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 62), (29, 75), (30, 49), (30, 58), (31, 49), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 271 rows, 2850 columns and 98333 nonzeros Presolve time: 0.07s Presolved: 271 rows, 2850 columns, 98333 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 217 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.37659 2.20% - 0s 0 0 694.87860 0 88 710.00000 694.87860 2.13% - 0s 0 0 694.87860 0 80 710.00000 694.87860 2.13% - 0s 0 0 695.20179 0 94 710.00000 695.20179 2.08% - 0s 0 0 695.25795 0 97 710.00000 695.25795 2.08% - 0s 0 0 695.28671 0 100 710.00000 695.28671 2.07% - 0s 0 0 695.29720 0 100 710.00000 695.29720 2.07% - 0s 0 0 695.31558 0 105 710.00000 695.31558 2.07% - 0s 0 0 695.35684 0 103 710.00000 695.35684 2.06% - 0s 0 0 695.36462 0 104 710.00000 695.36462 2.06% - 0s 0 0 695.38063 0 106 710.00000 695.38063 2.06% - 0s 0 0 695.39378 0 106 710.00000 695.39378 2.06% - 0s 0 0 695.44040 0 101 710.00000 695.44040 2.05% - 0s 0 0 695.44741 0 102 710.00000 695.44741 2.05% - 1s 0 0 695.46118 0 108 710.00000 695.46118 2.05% - 1s 0 0 695.46402 0 105 710.00000 695.46402 2.05% - 1s 0 0 695.46569 0 108 710.00000 695.46569 2.05% - 1s 0 0 695.48338 0 107 710.00000 695.48338 2.04% - 1s 0 0 695.48426 0 109 710.00000 695.48426 2.04% - 1s 0 0 695.48439 0 112 710.00000 695.48439 2.04% - 1s 0 0 695.48439 0 112 710.00000 695.48439 2.04% - 1s 0 2 695.48619 0 112 710.00000 695.48619 2.04% - 1s H 54 50 706.0000000 695.51491 1.49% 23.3 2s H 759 396 704.0000000 697.49503 0.92% 18.4 4s 1096 458 702.91845 28 70 704.00000 698.39165 0.80% 17.7 5s 4379 623 702.69231 26 76 704.00000 701.16327 0.40% 14.9 10s Cutting planes: Gomory: 11 MIR: 2 Zero half: 4 Explored 6002 nodes (84930 simplex iterations) in 12.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (8, 36), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (32, 40), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74), (66, 67)] adding cut for [(16, 58), (3, 75), (37, 70), (37, 48), (70, 72), (9, 47), (9, 20), (14, 58), (14, 55), (61, 71), (61, 72), (20, 55), (21, 71), (21, 38), (22, 48), (22, 62), (6, 16), (6, 38), (29, 75), (29, 62)] Optimize a model with 273 rows, 2850 columns and 99039 nonzeros Presolve time: 0.07s Presolved: 273 rows, 2850 columns, 99039 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 203 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 83 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.37659 2.20% - 0s 0 0 694.87860 0 88 710.00000 694.87860 2.13% - 0s 0 0 694.87860 0 80 710.00000 694.87860 2.13% - 0s 0 0 695.19851 0 96 710.00000 695.19851 2.08% - 0s 0 0 695.23678 0 98 710.00000 695.23678 2.08% - 0s 0 0 695.27853 0 96 710.00000 695.27853 2.07% - 0s 0 0 695.27853 0 98 710.00000 695.27853 2.07% - 0s 0 0 695.27927 0 99 710.00000 695.27927 2.07% - 0s 0 0 695.28081 0 103 710.00000 695.28081 2.07% - 0s 0 0 695.28081 0 103 710.00000 695.28081 2.07% - 1s 0 2 695.28335 0 103 710.00000 695.28335 2.07% - 1s * 41 36 30 709.0000000 696.48672 1.76% 20.8 1s * 121 70 26 706.0000000 696.63154 1.33% 18.0 2s * 394 178 24 705.0000000 697.70368 1.03% 17.0 2s * 1350 339 37 704.0000000 699.13874 0.69% 17.7 4s 1720 395 702.45455 24 73 704.00000 699.80606 0.60% 17.5 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 3 Explored 4334 nodes (65882 simplex iterations) in 8.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (8, 54), (10, 26), (10, 40), (11, 32), (11, 59), (12, 39), (12, 67), (15, 54), (15, 60), (19, 51), (19, 56), (26, 56), (32, 66), (33, 45), (33, 51), (39, 66), (40, 73), (59, 73), (60, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(2, 64), (2, 74), (23, 29), (23, 62), (17, 34), (17, 50), (3, 34), (22, 75), (22, 62), (25, 50), (25, 57), (24, 64), (24, 57), (31, 75), (29, 63), (63, 74)] adding cut for [(42, 65), (42, 44), (43, 65), (43, 44)] Optimize a model with 277 rows, 2850 columns and 99602 nonzeros Presolve time: 0.07s Presolved: 277 rows, 2850 columns, 99602 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.37659 2.75% - 0s 0 0 694.73922 0 88 714.00000 694.73922 2.70% - 0s 0 0 694.73922 0 80 714.00000 694.73922 2.70% - 0s 0 0 695.02740 0 93 714.00000 695.02740 2.66% - 0s 0 0 695.05813 0 92 714.00000 695.05813 2.65% - 0s 0 0 695.18627 0 100 714.00000 695.18627 2.63% - 0s 0 0 695.18627 0 103 714.00000 695.18627 2.63% - 0s 0 0 695.26213 0 92 714.00000 695.26213 2.62% - 1s 0 0 695.29535 0 97 714.00000 695.29535 2.62% - 1s 0 0 695.29535 0 96 714.00000 695.29535 2.62% - 1s 0 0 695.29535 0 98 714.00000 695.29535 2.62% - 1s 0 0 695.29959 0 94 714.00000 695.29959 2.62% - 1s 0 0 695.29959 0 98 714.00000 695.29959 2.62% - 1s 0 0 695.29959 0 100 714.00000 695.29959 2.62% - 1s 0 0 695.29959 0 100 714.00000 695.29959 2.62% - 1s 0 2 695.30030 0 100 714.00000 695.30030 2.62% - 2s * 55 42 46 710.0000000 696.05679 1.96% 17.0 2s * 136 74 29 707.0000000 696.70739 1.46% 17.8 2s * 209 75 17 704.0000000 696.92725 1.00% 18.9 2s 935 197 701.41228 23 73 704.00000 698.95946 0.72% 18.9 5s Cutting planes: Gomory: 3 MIR: 1 Zero half: 3 Explored 3714 nodes (59760 simplex iterations) in 8.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 75), (6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 25), (24, 57), (25, 50), (29, 62), (34, 64), (34, 74), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 75), (70, 72)] adding cut for [(32, 40), (66, 67), (36, 54), (39, 66), (8, 36), (11, 32), (11, 39), (12, 67), (12, 60), (13, 59), (15, 54), (15, 60), (40, 73), (59, 73)] Optimize a model with 279 rows, 2850 columns and 100337 nonzeros Presolve time: 0.07s Presolved: 279 rows, 2850 columns, 100337 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.37659 2.75% - 0s 0 0 694.73922 0 87 714.00000 694.73922 2.70% - 0s 0 0 694.73922 0 80 714.00000 694.73922 2.70% - 0s 0 0 694.96387 0 93 714.00000 694.96387 2.67% - 0s 0 0 695.03638 0 92 714.00000 695.03638 2.66% - 0s 0 0 695.06824 0 96 714.00000 695.06824 2.65% - 0s 0 0 695.10107 0 96 714.00000 695.10107 2.65% - 0s 0 0 695.12264 0 101 714.00000 695.12264 2.64% - 0s 0 0 695.12264 0 103 714.00000 695.12264 2.64% - 0s 0 0 695.16371 0 99 714.00000 695.16371 2.64% - 1s 0 0 695.16537 0 101 714.00000 695.16537 2.64% - 1s 0 0 695.16548 0 102 714.00000 695.16548 2.64% - 1s 0 0 695.16548 0 102 714.00000 695.16548 2.64% - 1s H 0 0 713.0000000 695.16548 2.50% - 1s 0 2 695.16907 0 102 713.00000 695.16907 2.50% - 1s * 57 46 36 705.0000000 695.20736 1.39% 20.0 1s H 637 371 704.0000000 697.34515 0.95% 17.3 3s 1833 465 cutoff 28 704.00000 699.43184 0.65% 16.5 5s 5449 293 701.89815 22 72 704.00000 701.76056 0.32% 14.7 10s Cutting planes: Gomory: 3 MIR: 1 Zero half: 7 Explored 5942 nodes (85289 simplex iterations) in 10.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (26, 56), (28, 46), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (32, 56), (37, 48), (37, 70), (39, 66), (40, 73), (49, 75), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 280 rows, 2850 columns and 101040 nonzeros Presolve time: 0.07s Presolved: 280 rows, 2850 columns, 101040 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.37659 2.75% - 0s 0 0 694.73922 0 88 714.00000 694.73922 2.70% - 0s 0 0 694.73922 0 80 714.00000 694.73922 2.70% - 0s 0 0 694.96387 0 93 714.00000 694.96387 2.67% - 0s 0 0 695.03638 0 92 714.00000 695.03638 2.66% - 0s 0 0 695.06824 0 96 714.00000 695.06824 2.65% - 0s 0 0 695.09275 0 100 714.00000 695.09275 2.65% - 0s 0 0 695.12167 0 102 714.00000 695.12167 2.64% - 0s 0 0 695.12167 0 104 714.00000 695.12167 2.64% - 0s 0 0 695.20451 0 99 714.00000 695.20451 2.63% - 1s 0 0 695.21852 0 96 714.00000 695.21852 2.63% - 1s 0 0 695.23031 0 105 714.00000 695.23031 2.63% - 1s 0 0 695.23447 0 97 714.00000 695.23447 2.63% - 1s 0 0 695.23447 0 99 714.00000 695.23447 2.63% - 1s 0 0 695.24079 0 100 714.00000 695.24079 2.63% - 1s 0 0 695.24414 0 101 714.00000 695.24414 2.63% - 1s 0 0 695.24414 0 104 714.00000 695.24414 2.63% - 1s 0 0 695.39894 0 101 714.00000 695.39894 2.61% - 1s 0 0 695.40289 0 106 714.00000 695.40289 2.60% - 1s 0 0 695.42481 0 101 714.00000 695.42481 2.60% - 1s 0 0 695.43527 0 108 714.00000 695.43527 2.60% - 1s 0 0 695.43898 0 109 714.00000 695.43898 2.60% - 1s 0 0 695.45213 0 106 714.00000 695.45213 2.60% - 1s 0 0 695.46742 0 109 714.00000 695.46742 2.60% - 1s 0 0 695.49307 0 104 714.00000 695.49307 2.59% - 1s 0 0 695.49564 0 111 714.00000 695.49564 2.59% - 1s 0 0 695.50351 0 107 714.00000 695.50351 2.59% - 1s 0 0 695.50351 0 109 714.00000 695.50351 2.59% - 1s 0 0 695.50433 0 108 714.00000 695.50433 2.59% - 1s 0 0 695.50756 0 105 714.00000 695.50756 2.59% - 2s 0 0 695.50756 0 108 714.00000 695.50756 2.59% - 2s H 0 0 713.0000000 695.50756 2.45% - 2s 0 2 695.50863 0 108 713.00000 695.50863 2.45% - 2s * 101 95 64 710.0000000 695.80639 2.00% 17.0 2s * 102 85 64 709.0000000 695.80639 1.86% 16.9 2s H 600 429 708.0000000 696.83058 1.58% 16.1 3s 612 437 703.60035 14 95 708.00000 696.83058 1.58% 15.8 5s H 618 418 706.0000000 696.83058 1.30% 16.5 6s H 645 414 705.0000000 696.92093 1.15% 17.2 6s H 780 403 704.0000000 697.58161 0.91% 17.1 7s 1985 540 701.70699 34 74 704.00000 699.54983 0.63% 17.0 10s 5295 184 cutoff 33 704.00000 702.08531 0.27% 15.7 15s Cutting planes: Gomory: 11 MIR: 1 Zero half: 4 Explored 5560 nodes (85793 simplex iterations) in 15.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (26, 56), (28, 58), (30, 46), (30, 49), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (48, 49), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 41), (4, 45), (13, 41), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (29, 62), (29, 63), (31, 75), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 282 rows, 2850 columns and 101832 nonzeros Presolve time: 0.08s Presolved: 282 rows, 2850 columns, 101832 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 708.0000000 694.37659 1.92% - 0s 0 0 694.73922 0 88 708.00000 694.73922 1.87% - 0s 0 0 694.73922 0 80 708.00000 694.73922 1.87% - 0s 0 0 694.96387 0 93 708.00000 694.96387 1.84% - 0s 0 0 695.05047 0 95 708.00000 695.05047 1.83% - 0s 0 0 695.12726 0 95 708.00000 695.12726 1.82% - 0s 0 0 695.21745 0 95 708.00000 695.21745 1.81% - 0s 0 0 695.28101 0 96 708.00000 695.28101 1.80% - 0s 0 0 695.28101 0 98 708.00000 695.28101 1.80% - 0s 0 0 695.30334 0 95 708.00000 695.30334 1.79% - 1s 0 0 695.30334 0 101 708.00000 695.30334 1.79% - 1s 0 0 695.45381 0 100 708.00000 695.45381 1.77% - 1s H 0 0 707.0000000 695.45381 1.63% - 1s 0 0 695.46350 0 103 707.00000 695.46350 1.63% - 1s 0 0 695.48571 0 103 707.00000 695.48571 1.63% - 1s 0 0 695.49459 0 109 707.00000 695.49459 1.63% - 1s 0 0 695.50640 0 107 707.00000 695.50640 1.63% - 1s 0 0 695.51608 0 105 707.00000 695.51608 1.62% - 1s 0 0 695.52163 0 106 707.00000 695.52163 1.62% - 1s 0 0 695.52472 0 108 707.00000 695.52472 1.62% - 1s 0 0 695.58863 0 106 707.00000 695.58863 1.61% - 1s 0 0 695.58863 0 107 707.00000 695.58863 1.61% - 1s 0 0 695.59620 0 105 707.00000 695.59620 1.61% - 1s 0 0 695.60146 0 106 707.00000 695.60146 1.61% - 1s 0 0 695.61119 0 106 707.00000 695.61119 1.61% - 1s 0 0 695.61317 0 110 707.00000 695.61317 1.61% - 1s 0 0 695.63132 0 108 707.00000 695.63132 1.61% - 1s 0 0 695.63132 0 110 707.00000 695.63132 1.61% - 1s 0 0 695.64550 0 110 707.00000 695.64550 1.61% - 1s 0 0 695.64679 0 111 707.00000 695.64679 1.61% - 1s 0 0 695.65151 0 110 707.00000 695.65151 1.61% - 1s 0 0 695.66566 0 113 707.00000 695.66566 1.60% - 1s 0 0 695.67227 0 110 707.00000 695.67227 1.60% - 1s 0 0 695.67749 0 111 707.00000 695.67749 1.60% - 1s 0 0 695.67749 0 111 707.00000 695.67749 1.60% - 2s 0 0 695.67749 0 111 707.00000 695.67749 1.60% - 2s 0 2 695.68742 0 111 707.00000 695.68742 1.60% - 2s H 54 50 705.0000000 695.77643 1.31% 19.4 2s * 360 209 30 704.0000000 696.89554 1.01% 15.7 2s 809 365 cutoff 31 704.00000 698.18910 0.83% 18.7 5s 3692 370 cutoff 37 704.00000 701.43539 0.36% 16.3 10s Cutting planes: Gomory: 9 MIR: 1 Zero half: 10 Explored 4538 nodes (70904 simplex iterations) in 11.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 62), (29, 75), (30, 46), (30, 49), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(9, 36), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 64), (35, 47), (36, 54), (39, 66), (50, 57), (66, 67)] Optimize a model with 284 rows, 2850 columns and 102385 nonzeros Presolve time: 0.07s Presolved: 284 rows, 2850 columns, 102385 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 707.0000000 694.37659 1.79% - 0s 0 0 694.73922 0 88 707.00000 694.73922 1.73% - 0s 0 0 694.73922 0 80 707.00000 694.73922 1.73% - 0s 0 0 694.96387 0 93 707.00000 694.96387 1.70% - 0s 0 0 695.05242 0 96 707.00000 695.05242 1.69% - 0s 0 0 695.06047 0 95 707.00000 695.06047 1.69% - 0s 0 0 695.06921 0 98 707.00000 695.06921 1.69% - 0s 0 0 695.09049 0 101 707.00000 695.09049 1.68% - 0s 0 0 695.17708 0 97 707.00000 695.17708 1.67% - 0s 0 0 695.23882 0 102 707.00000 695.23882 1.66% - 0s 0 0 695.24992 0 105 707.00000 695.24992 1.66% - 0s 0 0 695.27245 0 102 707.00000 695.27245 1.66% - 0s 0 0 695.27245 0 103 707.00000 695.27245 1.66% - 0s 0 0 695.29535 0 98 707.00000 695.29535 1.66% - 1s 0 0 695.29735 0 105 707.00000 695.29735 1.66% - 1s 0 0 695.31037 0 99 707.00000 695.31037 1.65% - 1s 0 0 695.31037 0 105 707.00000 695.31037 1.65% - 1s 0 0 695.31536 0 106 707.00000 695.31536 1.65% - 1s 0 0 695.31935 0 103 707.00000 695.31935 1.65% - 1s 0 0 695.32079 0 106 707.00000 695.32079 1.65% - 1s 0 0 695.32996 0 106 707.00000 695.32996 1.65% - 1s 0 0 695.36927 0 96 707.00000 695.36927 1.65% - 1s 0 0 695.37952 0 99 707.00000 695.37952 1.64% - 1s 0 0 695.39175 0 100 707.00000 695.39175 1.64% - 1s 0 0 695.39175 0 103 707.00000 695.39175 1.64% - 1s 0 0 695.39331 0 106 707.00000 695.39331 1.64% - 1s 0 0 695.39331 0 106 707.00000 695.39331 1.64% - 1s 0 2 695.41024 0 106 707.00000 695.41024 1.64% - 1s H 280 193 705.0000000 696.87944 1.15% 16.5 2s * 1070 399 28 704.0000000 698.43122 0.79% 17.8 3s 1672 418 702.55263 30 57 704.00000 699.54671 0.63% 17.4 5s Cutting planes: Gomory: 2 MIR: 1 Zero half: 11 Explored 4964 nodes (73668 simplex iterations) in 9.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (11, 32), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 51), (19, 56), (20, 36), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (29, 62), (30, 46), (30, 49), (31, 75), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 285 rows, 2850 columns and 103660 nonzeros Presolve time: 0.07s Presolved: 285 rows, 2850 columns, 103660 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.943766e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.37659 0 80 2820.00000 694.37659 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.37659 2.75% - 0s 0 0 694.94573 0 90 714.00000 694.94573 2.67% - 0s 0 0 694.94573 0 80 714.00000 694.94573 2.67% - 0s 0 0 694.96387 0 93 714.00000 694.96387 2.67% - 0s 0 0 695.03638 0 92 714.00000 695.03638 2.66% - 0s 0 0 695.06603 0 98 714.00000 695.06603 2.65% - 0s 0 0 695.08283 0 99 714.00000 695.08283 2.65% - 0s 0 0 695.09923 0 100 714.00000 695.09923 2.65% - 0s 0 0 695.09923 0 102 714.00000 695.09923 2.65% - 1s 0 0 695.12243 0 99 714.00000 695.12243 2.64% - 1s 0 0 695.12243 0 101 714.00000 695.12243 2.64% - 1s 0 0 695.14031 0 98 714.00000 695.14031 2.64% - 1s 0 0 695.16344 0 101 714.00000 695.16344 2.64% - 1s 0 0 695.16791 0 102 714.00000 695.16791 2.64% - 1s 0 0 695.17161 0 104 714.00000 695.17161 2.64% - 1s 0 0 695.23169 0 104 714.00000 695.23169 2.63% - 1s 0 0 695.24058 0 105 714.00000 695.24058 2.63% - 1s 0 0 695.40078 0 105 714.00000 695.40078 2.60% - 1s 0 0 695.42532 0 102 714.00000 695.42532 2.60% - 1s 0 0 695.43096 0 103 714.00000 695.43096 2.60% - 1s 0 0 695.43216 0 108 714.00000 695.43216 2.60% - 1s 0 0 695.43354 0 106 714.00000 695.43354 2.60% - 1s 0 0 695.43421 0 107 714.00000 695.43421 2.60% - 1s 0 0 695.43421 0 107 714.00000 695.43421 2.60% - 1s 0 2 695.43921 0 107 714.00000 695.43921 2.60% - 1s H 69 69 712.0000000 695.88945 2.26% 24.3 2s * 538 365 52 709.0000000 697.08827 1.68% 16.4 3s H 700 293 706.0000000 697.23354 1.24% 15.8 3s * 778 313 43 705.0000000 697.23354 1.10% 16.6 4s 835 334 699.39580 19 79 705.00000 697.23354 1.10% 17.3 5s H 1237 362 704.0000000 698.51319 0.78% 17.8 5s 3541 599 702.23351 27 69 704.00000 700.72344 0.47% 16.8 10s Cutting planes: Gomory: 9 Zero half: 4 Explored 6026 nodes (92633 simplex iterations) in 13.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (13, 41), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (29, 62), (29, 63), (30, 46), (30, 58), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(8, 36), (9, 36), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (20, 54), (20, 55), (26, 56), (28, 53), (32, 56), (39, 66), (40, 73), (47, 53), (59, 73), (60, 67)] Optimize a model with 287 rows, 2850 columns and 104464 nonzeros Presolve time: 0.08s Presolved: 287 rows, 2850 columns, 104464 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 225 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 708.0000000 694.44658 1.91% - 0s H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.30962 0 92 706.00000 695.30962 1.51% - 0s 0 0 695.32341 0 95 706.00000 695.32341 1.51% - 0s 0 0 695.32341 0 97 706.00000 695.32341 1.51% - 0s 0 0 695.33786 0 95 706.00000 695.33786 1.51% - 0s 0 0 695.33956 0 101 706.00000 695.33956 1.51% - 0s 0 0 695.36006 0 98 706.00000 695.36006 1.51% - 1s 0 0 695.36160 0 101 706.00000 695.36160 1.51% - 1s 0 0 695.37835 0 98 706.00000 695.37835 1.50% - 1s 0 0 695.37950 0 102 706.00000 695.37950 1.50% - 1s 0 0 695.38403 0 101 706.00000 695.38403 1.50% - 1s 0 0 695.38403 0 103 706.00000 695.38403 1.50% - 1s 0 0 695.44396 0 106 706.00000 695.44396 1.50% - 1s 0 0 695.44889 0 103 706.00000 695.44889 1.49% - 1s 0 0 695.44889 0 104 706.00000 695.44889 1.49% - 1s 0 0 695.45373 0 103 706.00000 695.45373 1.49% - 1s 0 0 695.45730 0 107 706.00000 695.45730 1.49% - 1s 0 0 695.46151 0 107 706.00000 695.46151 1.49% - 1s 0 2 695.46304 0 107 706.00000 695.46304 1.49% - 1s H 213 147 705.0000000 697.10812 1.12% 19.6 2s * 980 433 34 704.0000000 698.06704 0.84% 18.1 3s 1740 419 cutoff 27 704.00000 699.73203 0.61% 17.3 5s 5038 42 702.74480 25 73 704.00000 702.58333 0.20% 15.1 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 5094 nodes (77078 simplex iterations) in 10.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 17), (4, 45), (9, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 73), (14, 55), (14, 58), (16, 38), (16, 58), (17, 52), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (35, 47), (37, 48), (37, 70), (40, 73), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (70, 72)] Optimize a model with 288 rows, 2850 columns and 105410 nonzeros Presolve time: 0.08s Presolved: 288 rows, 2850 columns, 105410 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 225 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 709.0000000 694.44658 2.05% - 0s H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.30962 0 92 706.00000 695.30962 1.51% - 0s 0 0 695.32341 0 95 706.00000 695.32341 1.51% - 0s 0 0 695.32341 0 97 706.00000 695.32341 1.51% - 0s 0 0 695.33786 0 95 706.00000 695.33786 1.51% - 0s 0 0 695.33956 0 101 706.00000 695.33956 1.51% - 0s 0 0 695.36006 0 98 706.00000 695.36006 1.51% - 1s 0 0 695.36160 0 101 706.00000 695.36160 1.51% - 1s 0 0 695.37835 0 98 706.00000 695.37835 1.50% - 1s 0 0 695.37950 0 102 706.00000 695.37950 1.50% - 1s 0 0 695.38403 0 101 706.00000 695.38403 1.50% - 1s 0 0 695.38403 0 103 706.00000 695.38403 1.50% - 1s 0 0 695.44396 0 106 706.00000 695.44396 1.50% - 1s 0 0 695.44889 0 103 706.00000 695.44889 1.49% - 1s 0 0 695.44889 0 104 706.00000 695.44889 1.49% - 1s 0 0 695.45373 0 103 706.00000 695.45373 1.49% - 1s 0 0 695.45730 0 107 706.00000 695.45730 1.49% - 1s 0 0 695.46151 0 107 706.00000 695.46151 1.49% - 1s 0 2 695.46304 0 107 706.00000 695.46304 1.49% - 1s H 600 358 705.0000000 697.75046 1.03% 16.1 2s * 784 378 40 704.0000000 697.75046 0.89% 17.7 3s 1602 396 702.14504 27 75 704.00000 699.65361 0.62% 16.4 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 4891 nodes (71348 simplex iterations) in 9.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (8, 36), (10, 33), (10, 40), (11, 32), (11, 73), (13, 41), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65), (70, 72)] adding cut for [(66, 67), (35, 47), (39, 66), (39, 59), (9, 54), (9, 47), (12, 67), (12, 60), (15, 54), (15, 60)] Optimize a model with 290 rows, 2850 columns and 106326 nonzeros Presolve time: 0.08s Presolved: 290 rows, 2850 columns, 106326 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 233 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.44658 2.74% - 0s H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.24549 0 100 706.00000 695.24549 1.52% - 0s 0 0 695.30092 0 97 706.00000 695.30092 1.52% - 0s 0 0 695.30092 0 99 706.00000 695.30092 1.52% - 0s 0 0 695.31286 0 104 706.00000 695.31286 1.51% - 1s 0 0 695.31286 0 106 706.00000 695.31286 1.51% - 1s 0 0 695.32623 0 99 706.00000 695.32623 1.51% - 1s 0 0 695.32623 0 101 706.00000 695.32623 1.51% - 1s 0 0 695.34482 0 99 706.00000 695.34482 1.51% - 1s 0 0 695.35053 0 103 706.00000 695.35053 1.51% - 1s 0 0 695.36609 0 102 706.00000 695.36609 1.51% - 1s 0 0 695.37256 0 104 706.00000 695.37256 1.51% - 1s 0 0 695.37503 0 101 706.00000 695.37503 1.50% - 1s 0 0 695.38036 0 107 706.00000 695.38036 1.50% - 1s 0 0 695.39266 0 108 706.00000 695.39266 1.50% - 1s 0 0 695.41349 0 108 706.00000 695.41349 1.50% - 1s 0 0 695.42885 0 106 706.00000 695.42885 1.50% - 1s 0 0 695.43058 0 106 706.00000 695.43058 1.50% - 1s 0 0 695.43058 0 109 706.00000 695.43058 1.50% - 1s 0 2 695.43558 0 109 706.00000 695.43558 1.50% - 1s H 783 401 704.0000000 697.66211 0.90% 17.0 3s 1822 398 702.19053 26 74 704.00000 699.96719 0.57% 16.0 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 11 Explored 4931 nodes (68776 simplex iterations) in 9.56 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 16), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(33, 51), (39, 66), (8, 54), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (40, 73), (19, 51), (19, 56), (26, 32), (26, 56), (59, 73), (60, 67)] adding cut for [(2, 44), (2, 74), (3, 63), (42, 43), (42, 44), (43, 65), (29, 75), (29, 62), (23, 65), (23, 62), (31, 75), (63, 74)] Optimize a model with 293 rows, 2850 columns and 106785 nonzeros Presolve time: 0.08s Presolved: 293 rows, 2850 columns, 106785 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.30962 0 92 706.00000 695.30962 1.51% - 0s 0 0 695.32317 0 95 706.00000 695.32317 1.51% - 0s 0 0 695.32317 0 97 706.00000 695.32317 1.51% - 0s 0 0 695.33837 0 95 706.00000 695.33837 1.51% - 0s 0 0 695.33837 0 97 706.00000 695.33837 1.51% - 0s 0 0 695.34531 0 99 706.00000 695.34531 1.51% - 0s 0 0 695.34531 0 101 706.00000 695.34531 1.51% - 1s 0 0 695.35132 0 103 706.00000 695.35132 1.51% - 1s 0 0 695.35132 0 105 706.00000 695.35132 1.51% - 1s 0 0 695.38426 0 101 706.00000 695.38426 1.50% - 1s 0 0 695.39384 0 99 706.00000 695.39384 1.50% - 1s 0 0 695.40161 0 103 706.00000 695.40161 1.50% - 1s 0 0 695.40569 0 100 706.00000 695.40569 1.50% - 1s 0 0 695.40580 0 106 706.00000 695.40580 1.50% - 1s 0 0 695.40977 0 98 706.00000 695.40977 1.50% - 1s 0 0 695.41266 0 101 706.00000 695.41266 1.50% - 1s 0 2 695.41844 0 101 706.00000 695.41844 1.50% - 2s * 146 78 20 705.0000000 697.26800 1.10% 19.3 2s 859 314 699.79819 19 78 705.00000 698.77515 0.88% 17.4 5s * 1481 277 30 704.0000000 699.85477 0.59% 17.2 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 8 Explored 3228 nodes (49940 simplex iterations) in 8.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (6, 16), (6, 38), (9, 20), (9, 36), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 29), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (30, 46), (30, 49), (31, 75), (32, 56), (36, 54), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 294 rows, 2850 columns and 107961 nonzeros Presolve time: 0.08s Presolved: 294 rows, 2850 columns, 107961 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 708.0000000 694.44658 1.91% - 0s H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.30962 0 92 706.00000 695.30962 1.51% - 0s 0 0 695.32317 0 95 706.00000 695.32317 1.51% - 0s 0 0 695.32317 0 97 706.00000 695.32317 1.51% - 0s 0 0 695.33837 0 95 706.00000 695.33837 1.51% - 0s 0 0 695.33837 0 97 706.00000 695.33837 1.51% - 1s 0 0 695.34531 0 99 706.00000 695.34531 1.51% - 1s 0 0 695.34531 0 101 706.00000 695.34531 1.51% - 1s 0 0 695.35132 0 103 706.00000 695.35132 1.51% - 1s 0 0 695.35132 0 105 706.00000 695.35132 1.51% - 1s 0 0 695.38426 0 101 706.00000 695.38426 1.50% - 1s 0 0 695.39384 0 99 706.00000 695.39384 1.50% - 1s 0 0 695.40161 0 103 706.00000 695.40161 1.50% - 1s 0 0 695.40569 0 100 706.00000 695.40569 1.50% - 1s 0 0 695.40580 0 106 706.00000 695.40580 1.50% - 1s 0 0 695.40977 0 98 706.00000 695.40977 1.50% - 1s 0 0 695.41266 0 101 706.00000 695.41266 1.50% - 1s 0 2 695.42154 0 101 706.00000 695.42154 1.50% - 2s * 146 87 21 705.0000000 697.26800 1.10% 17.5 2s * 399 160 15 704.0000000 698.32085 0.81% 15.9 2s 865 235 702.23077 29 64 704.00000 698.79822 0.74% 17.5 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 3330 nodes (51645 simplex iterations) in 8.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 73), (13, 41), (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), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(3, 75), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (37, 70), (37, 72), (39, 59), (39, 66), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(36, 54), (6, 48), (6, 30), (8, 54), (9, 36), (9, 47), (47, 53), (48, 49), (28, 46), (28, 53), (30, 46), (31, 49)] Optimize a model with 297 rows, 2850 columns and 108727 nonzeros Presolve time: 0.08s Presolved: 297 rows, 2850 columns, 108727 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944466e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44658 0 84 2820.00000 694.44658 75.4% - 0s Another try with MIP start H 0 0 717.0000000 694.44658 3.15% - 0s H 0 0 706.0000000 694.44658 1.64% - 0s 0 0 695.09191 0 96 706.00000 695.09191 1.55% - 0s 0 0 695.09191 0 84 706.00000 695.09191 1.55% - 0s 0 0 695.12922 0 95 706.00000 695.12922 1.54% - 0s 0 0 695.30962 0 92 706.00000 695.30962 1.51% - 0s 0 0 695.32317 0 95 706.00000 695.32317 1.51% - 0s 0 0 695.32317 0 97 706.00000 695.32317 1.51% - 0s 0 0 695.33837 0 95 706.00000 695.33837 1.51% - 1s 0 0 695.33837 0 97 706.00000 695.33837 1.51% - 1s 0 0 695.34531 0 99 706.00000 695.34531 1.51% - 1s 0 0 695.34531 0 101 706.00000 695.34531 1.51% - 1s 0 0 695.35132 0 103 706.00000 695.35132 1.51% - 1s 0 0 695.35132 0 105 706.00000 695.35132 1.51% - 1s 0 0 695.38426 0 101 706.00000 695.38426 1.50% - 1s 0 0 695.39384 0 99 706.00000 695.39384 1.50% - 1s 0 0 695.40161 0 103 706.00000 695.40161 1.50% - 1s 0 0 695.40569 0 100 706.00000 695.40569 1.50% - 1s 0 0 695.40580 0 106 706.00000 695.40580 1.50% - 1s 0 0 695.40977 0 98 706.00000 695.40977 1.50% - 1s 0 0 695.41266 0 101 706.00000 695.41266 1.50% - 1s 0 2 695.41844 0 101 706.00000 695.41844 1.50% - 2s * 122 72 24 705.0000000 696.93546 1.14% 18.0 2s 825 331 703.57669 23 74 705.00000 698.77515 0.88% 17.2 5s * 2792 435 27 704.0000000 700.86957 0.44% 16.0 7s Cutting planes: Gomory: 3 MIR: 2 Zero half: 8 Explored 4235 nodes (62899 simplex iterations) in 9.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 64), (4, 17), (4, 45), (10, 33), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (13, 41), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (33, 45), (39, 59), (39, 66), (40, 73), (41, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67)] adding cut for [(34, 74), (3, 74), (3, 63), (37, 70), (37, 48), (70, 72), (61, 71), (61, 72), (48, 49), (49, 75), (30, 46), (21, 71), (21, 38), (22, 75), (22, 62), (6, 30), (6, 38), (29, 62), (29, 63)] Optimize a model with 299 rows, 2850 columns and 109737 nonzeros Presolve time: 0.08s Presolved: 299 rows, 2850 columns, 109737 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944467e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44675 0 84 2820.00000 694.44675 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.44675 2.19% - 0s H 0 0 706.0000000 694.44675 1.64% - 0s 0 0 694.96768 0 92 706.00000 694.96768 1.56% - 0s 0 0 694.96768 0 86 706.00000 694.96768 1.56% - 0s 0 0 694.99488 0 89 706.00000 694.99488 1.56% - 0s 0 0 695.16319 0 99 706.00000 695.16319 1.53% - 0s 0 0 695.28330 0 98 706.00000 695.28330 1.52% - 0s 0 0 695.28330 0 100 706.00000 695.28330 1.52% - 1s 0 0 695.30347 0 104 706.00000 695.30347 1.52% - 1s 0 0 695.30347 0 106 706.00000 695.30347 1.52% - 1s 0 0 695.34076 0 97 706.00000 695.34076 1.51% - 1s 0 0 695.34515 0 100 706.00000 695.34515 1.51% - 1s 0 0 695.35376 0 102 706.00000 695.35376 1.51% - 1s 0 0 695.35401 0 103 706.00000 695.35401 1.51% - 1s 0 2 695.35721 0 103 706.00000 695.35721 1.51% - 1s H 767 405 704.0000000 697.73332 0.89% 18.1 3s 1544 461 702.14953 23 68 704.00000 699.18210 0.68% 17.6 5s 4374 284 702.30233 19 64 704.00000 701.82066 0.31% 15.8 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 4801 nodes (73827 simplex iterations) in 10.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (13, 59), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (26, 32), (26, 56), (29, 63), (29, 75), (33, 51), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (59, 73), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] Optimize a model with 300 rows, 2850 columns and 110683 nonzeros Presolve time: 0.08s Presolved: 300 rows, 2850 columns, 110683 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944467e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.44675 0 84 2820.00000 694.44675 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.44675 2.47% - 0s H 0 0 706.0000000 694.44675 1.64% - 0s 0 0 694.96768 0 92 706.00000 694.96768 1.56% - 0s 0 0 694.96768 0 84 706.00000 694.96768 1.56% - 0s 0 0 694.99488 0 89 706.00000 694.99488 1.56% - 0s 0 0 695.16319 0 99 706.00000 695.16319 1.53% - 0s 0 0 695.28330 0 98 706.00000 695.28330 1.52% - 0s 0 0 695.28330 0 100 706.00000 695.28330 1.52% - 0s 0 0 695.30347 0 104 706.00000 695.30347 1.52% - 0s 0 0 695.30347 0 106 706.00000 695.30347 1.52% - 0s 0 0 695.34076 0 96 706.00000 695.34076 1.51% - 1s 0 0 695.34284 0 100 706.00000 695.34284 1.51% - 1s 0 0 695.35376 0 103 706.00000 695.35376 1.51% - 1s 0 0 695.35401 0 105 706.00000 695.35401 1.51% - 1s 0 0 695.35545 0 107 706.00000 695.35545 1.51% - 1s 0 0 695.35545 0 107 706.00000 695.35545 1.51% - 1s 0 2 695.35614 0 107 706.00000 695.35614 1.51% - 1s * 542 343 18 705.0000000 698.11342 0.98% 17.2 2s * 805 443 33 704.0000000 698.59456 0.77% 17.6 3s 1991 297 702.99010 25 50 704.00000 700.37931 0.51% 16.5 5s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 3452 nodes (51167 simplex iterations) in 7.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 34), (3, 75), (6, 16), (6, 38), (11, 39), (11, 59), (12, 60), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 64), (19, 25), (19, 51), (20, 54), (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, 53), (29, 62), (29, 63), (30, 49), (30, 58), (31, 49), (31, 75), (32, 56), (32, 73), (34, 74), (35, 53), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 301 rows, 2850 columns and 112168 nonzeros Presolve time: 0.08s Presolved: 301 rows, 2850 columns, 112168 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944577e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.45772 0 85 2820.00000 694.45772 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.45772 2.46% - 0s H 0 0 706.0000000 694.45772 1.63% - 0s 0 0 694.97114 0 93 706.00000 694.97114 1.56% - 0s 0 0 694.97114 0 85 706.00000 694.97114 1.56% - 0s 0 0 694.97114 0 93 706.00000 694.97114 1.56% - 0s 0 0 695.20643 0 92 706.00000 695.20643 1.53% - 0s 0 0 695.23438 0 93 706.00000 695.23438 1.52% - 0s 0 0 695.32627 0 92 706.00000 695.32627 1.51% - 0s 0 0 695.35147 0 94 706.00000 695.35147 1.51% - 0s 0 0 695.35147 0 96 706.00000 695.35147 1.51% - 1s 0 0 695.37069 0 100 706.00000 695.37069 1.51% - 1s 0 0 695.37069 0 102 706.00000 695.37069 1.51% - 1s 0 0 695.37813 0 101 706.00000 695.37813 1.50% - 1s 0 0 695.37813 0 103 706.00000 695.37813 1.50% - 1s 0 0 695.40281 0 100 706.00000 695.40281 1.50% - 1s 0 0 695.40440 0 101 706.00000 695.40440 1.50% - 1s 0 0 695.41039 0 106 706.00000 695.41039 1.50% - 1s 0 0 695.43947 0 99 706.00000 695.43947 1.50% - 1s 0 0 695.43947 0 101 706.00000 695.43947 1.50% - 1s 0 0 695.45900 0 104 706.00000 695.45900 1.49% - 1s 0 0 695.45900 0 106 706.00000 695.45900 1.49% - 1s 0 0 695.46384 0 103 706.00000 695.46384 1.49% - 1s 0 0 695.46384 0 105 706.00000 695.46384 1.49% - 1s 0 0 695.46757 0 106 706.00000 695.46757 1.49% - 1s 0 0 695.47018 0 107 706.00000 695.47018 1.49% - 1s 0 0 695.47662 0 104 706.00000 695.47662 1.49% - 1s 0 0 695.47672 0 108 706.00000 695.47672 1.49% - 1s 0 0 695.47739 0 110 706.00000 695.47739 1.49% - 1s H 0 0 705.0000000 695.47739 1.35% - 1s 0 2 695.47906 0 110 705.00000 695.47906 1.35% - 1s 1442 521 702.95455 21 67 705.00000 699.21059 0.82% 18.3 5s * 2415 563 27 704.0000000 700.27670 0.53% 17.7 6s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 4504 nodes (71277 simplex iterations) in 9.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(3, 75), (8, 54), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] Optimize a model with 302 rows, 2850 columns and 112574 nonzeros Presolve time: 0.08s Presolved: 302 rows, 2850 columns, 112574 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.944577e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.45772 0 85 2820.00000 694.45772 75.4% - 0s Another try with MIP start H 0 0 705.0000000 694.45772 1.50% - 0s 0 0 694.97114 0 93 705.00000 694.97114 1.42% - 0s 0 0 694.97114 0 88 705.00000 694.97114 1.42% - 0s 0 0 694.99365 0 95 705.00000 694.99365 1.42% - 0s 0 0 695.20307 0 94 705.00000 695.20307 1.39% - 0s 0 0 695.24145 0 95 705.00000 695.24145 1.38% - 0s 0 0 695.32672 0 96 705.00000 695.32672 1.37% - 0s 0 0 695.35504 0 100 705.00000 695.35504 1.37% - 0s 0 0 695.37520 0 96 705.00000 695.37520 1.37% - 1s 0 0 695.38908 0 102 705.00000 695.38908 1.36% - 1s 0 0 695.41268 0 96 705.00000 695.41268 1.36% - 1s 0 0 695.41665 0 100 705.00000 695.41665 1.36% - 1s 0 0 695.43641 0 102 705.00000 695.43641 1.36% - 1s 0 0 695.46673 0 99 705.00000 695.46673 1.35% - 1s 0 0 695.46673 0 103 705.00000 695.46673 1.35% - 1s 0 0 695.46673 0 102 705.00000 695.46673 1.35% - 1s 0 0 695.46673 0 103 705.00000 695.46673 1.35% - 1s 0 0 695.46673 0 103 705.00000 695.46673 1.35% - 1s 0 2 695.49318 0 103 705.00000 695.49318 1.35% - 1s 1626 552 700.31597 24 81 705.00000 699.26379 0.81% 17.6 5s * 3511 809 26 704.0000000 700.57660 0.49% 16.8 8s 4651 718 702.40998 30 75 704.00000 701.42887 0.37% 16.3 10s Cutting planes: Gomory: 2 MIR: 1 Zero half: 11 Explored 6068 nodes (92329 simplex iterations) in 11.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(35, 53), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (49, 75), (37, 48), (37, 70), (21, 38), (21, 71), (22, 48), (22, 75), (55, 58), (28, 53), (61, 71), (61, 72), (30, 49), (30, 46)] adding cut for [(2, 64), (2, 74), (3, 31), (3, 63), (43, 65), (43, 44), (34, 74), (29, 62), (29, 63), (17, 64), (17, 50), (24, 57), (24, 25), (25, 50), (42, 44), (42, 57), (23, 65), (23, 62)] adding cut for [(32, 73), (4, 41), (4, 45), (33, 51), (33, 45), (40, 73), (10, 40), (10, 26), (11, 32), (11, 59), (13, 59), (19, 51), (19, 56), (26, 56)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 36), (9, 20), (9, 47), (12, 39), (12, 54), (15, 20), (15, 60), (60, 67)] Optimize a model with 306 rows, 2850 columns and 113126 nonzeros Presolve time: 0.08s Presolved: 306 rows, 2850 columns, 113126 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 84 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 104 706.00000 695.40070 1.50% - 0s 0 0 695.46822 0 95 706.00000 695.46822 1.49% - 0s 0 0 695.47194 0 95 706.00000 695.47194 1.49% - 0s 0 0 695.47918 0 100 706.00000 695.47918 1.49% - 0s 0 0 695.49517 0 99 706.00000 695.49517 1.49% - 0s 0 0 695.49517 0 101 706.00000 695.49517 1.49% - 0s 0 0 695.50283 0 102 706.00000 695.50283 1.49% - 1s 0 0 695.50293 0 106 706.00000 695.50293 1.49% - 1s 0 0 695.55943 0 98 706.00000 695.55943 1.48% - 1s 0 0 695.56598 0 106 706.00000 695.56598 1.48% - 1s 0 0 695.57547 0 103 706.00000 695.57547 1.48% - 1s 0 0 695.57923 0 104 706.00000 695.57923 1.48% - 1s 0 0 695.58254 0 103 706.00000 695.58254 1.48% - 1s 0 0 695.58257 0 103 706.00000 695.58257 1.48% - 1s 0 2 695.58363 0 103 706.00000 695.58363 1.48% - 1s * 940 479 34 705.0000000 698.44970 0.93% 17.5 3s * 954 406 29 704.0000000 698.47727 0.78% 17.5 3s 1690 417 701.96000 33 80 704.00000 699.37718 0.66% 16.6 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 4408 nodes (66013 simplex iterations) in 9.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 45), (4, 52), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (47, 53), (14, 58), (14, 28), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (6, 16), (6, 38), (28, 53), (29, 62), (29, 63)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 9), (9, 55), (11, 39), (11, 59), (12, 67), (12, 60), (13, 41), (13, 59), (15, 54), (15, 60), (20, 36), (20, 55)] Optimize a model with 309 rows, 2850 columns and 113761 nonzeros Presolve time: 0.08s Presolved: 309 rows, 2850 columns, 113761 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 84 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 104 706.00000 695.40070 1.50% - 0s 0 0 695.46822 0 95 706.00000 695.46822 1.49% - 0s 0 0 695.47194 0 95 706.00000 695.47194 1.49% - 0s 0 0 695.47918 0 100 706.00000 695.47918 1.49% - 0s 0 0 695.49517 0 99 706.00000 695.49517 1.49% - 0s 0 0 695.49517 0 101 706.00000 695.49517 1.49% - 1s 0 0 695.50283 0 102 706.00000 695.50283 1.49% - 1s 0 0 695.50293 0 106 706.00000 695.50293 1.49% - 1s 0 0 695.55943 0 98 706.00000 695.55943 1.48% - 1s 0 0 695.56598 0 106 706.00000 695.56598 1.48% - 1s 0 0 695.57547 0 103 706.00000 695.57547 1.48% - 1s 0 0 695.58324 0 102 706.00000 695.58324 1.48% - 1s 0 0 695.58469 0 105 706.00000 695.58469 1.48% - 1s 0 0 695.59002 0 103 706.00000 695.59002 1.47% - 1s 0 0 695.59002 0 106 706.00000 695.59002 1.47% - 1s 0 0 695.59445 0 104 706.00000 695.59445 1.47% - 1s 0 0 695.59445 0 107 706.00000 695.59445 1.47% - 1s 0 0 695.59603 0 105 706.00000 695.59603 1.47% - 1s 0 0 695.60131 0 108 706.00000 695.60131 1.47% - 1s 0 2 695.63078 0 105 706.00000 695.63078 1.47% - 1s * 236 144 17 705.0000000 697.32851 1.09% 19.5 2s * 1174 338 23 704.0000000 699.21667 0.68% 18.5 4s 1404 298 701.94596 16 79 704.00000 699.85567 0.59% 18.2 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 11 Explored 3185 nodes (52514 simplex iterations) in 7.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (9, 20), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (20, 36), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (34, 74), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (66, 67)] adding cut for [(48, 49), (35, 53), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (55, 58), (28, 53), (61, 71), (61, 72), (30, 46), (30, 49)] Optimize a model with 311 rows, 2850 columns and 114367 nonzeros Presolve time: 0.08s Presolved: 311 rows, 2850 columns, 114367 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 85 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 104 706.00000 695.40070 1.50% - 0s 0 0 695.46931 0 96 706.00000 695.46931 1.49% - 0s 0 0 695.46931 0 98 706.00000 695.46931 1.49% - 0s 0 0 695.47598 0 96 706.00000 695.47598 1.49% - 0s 0 0 695.47710 0 97 706.00000 695.47710 1.49% - 0s 0 0 695.48103 0 101 706.00000 695.48103 1.49% - 1s 0 0 695.49965 0 96 706.00000 695.49965 1.49% - 1s 0 0 695.49991 0 98 706.00000 695.49991 1.49% - 1s 0 0 695.50074 0 101 706.00000 695.50074 1.49% - 1s 0 0 695.50074 0 103 706.00000 695.50074 1.49% - 1s 0 2 695.54725 0 103 706.00000 695.54725 1.48% - 1s * 1060 485 32 705.0000000 698.69259 0.89% 18.8 4s * 1270 401 25 704.0000000 699.21739 0.68% 18.8 4s 1689 335 702.59341 32 64 704.00000 699.93130 0.58% 18.2 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 4 Explored 3468 nodes (57476 simplex iterations) in 7.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(3, 31), (3, 75), (4, 41), (4, 45), (10, 33), (10, 40), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (32, 73), (33, 45), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(48, 49), (35, 47), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (47, 53), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (55, 58), (28, 53), (61, 71), (61, 72), (30, 46), (30, 49)] adding cut for [(66, 67), (39, 66), (8, 36), (9, 36), (9, 20), (11, 39), (11, 59), (12, 67), (12, 54), (15, 54), (15, 60), (20, 60)] Optimize a model with 314 rows, 2850 columns and 115013 nonzeros Presolve time: 0.08s Presolved: 314 rows, 2850 columns, 115013 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 246 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.68750 2.16% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 82 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.38762 0 98 706.00000 695.38762 1.50% - 0s 0 0 695.39976 0 96 706.00000 695.39976 1.50% - 0s 0 0 695.39976 0 98 706.00000 695.39976 1.50% - 0s 0 0 695.40549 0 102 706.00000 695.40549 1.50% - 0s 0 0 695.40549 0 104 706.00000 695.40549 1.50% - 1s 0 0 695.47633 0 96 706.00000 695.47633 1.49% - 1s 0 0 695.47633 0 98 706.00000 695.47633 1.49% - 1s 0 0 695.47785 0 96 706.00000 695.47785 1.49% - 1s 0 0 695.47785 0 96 706.00000 695.47785 1.49% - 1s 0 0 695.47785 0 98 706.00000 695.47785 1.49% - 1s 0 2 695.51732 0 98 706.00000 695.51732 1.48% - 1s * 159 71 22 705.0000000 697.37019 1.08% 18.8 2s 827 260 702.87866 18 68 705.00000 699.03976 0.85% 18.6 5s * 1580 269 22 704.0000000 699.96826 0.57% 17.7 6s Cutting planes: Gomory: 3 MIR: 2 Zero half: 3 Explored 2986 nodes (48613 simplex iterations) in 8.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (19, 51), (19, 56), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 32), (26, 56), (28, 58), (29, 62), (29, 75), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 315 rows, 2850 columns and 115959 nonzeros Presolve time: 0.08s Presolved: 315 rows, 2850 columns, 115959 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.19545 0 92 706.00000 695.19545 1.53% - 0s 0 0 695.19545 0 82 706.00000 695.19545 1.53% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 103 706.00000 695.40070 1.50% - 0s 0 0 695.40070 0 105 706.00000 695.40070 1.50% - 0s 0 0 695.44374 0 97 706.00000 695.44374 1.50% - 0s 0 0 695.47194 0 96 706.00000 695.47194 1.49% - 0s 0 0 695.47918 0 99 706.00000 695.47918 1.49% - 0s 0 0 695.47918 0 101 706.00000 695.47918 1.49% - 0s 0 0 695.49517 0 99 706.00000 695.49517 1.49% - 1s 0 0 695.49517 0 101 706.00000 695.49517 1.49% - 1s 0 0 695.50283 0 104 706.00000 695.50283 1.49% - 1s 0 0 695.55943 0 99 706.00000 695.55943 1.48% - 1s 0 0 695.56598 0 107 706.00000 695.56598 1.48% - 1s 0 0 695.56613 0 106 706.00000 695.56613 1.48% - 1s 0 0 695.57341 0 106 706.00000 695.57341 1.48% - 1s 0 0 695.57465 0 103 706.00000 695.57465 1.48% - 1s 0 0 695.57698 0 105 706.00000 695.57698 1.48% - 1s 0 0 695.57738 0 108 706.00000 695.57738 1.48% - 1s 0 0 695.57738 0 108 706.00000 695.57738 1.48% - 1s 0 2 695.57806 0 108 706.00000 695.57806 1.48% - 1s * 75 66 47 705.0000000 696.83445 1.16% 21.7 1s 1650 496 702.91667 25 67 705.00000 699.90007 0.72% 17.9 5s * 2530 608 23 704.0000000 700.63662 0.48% 17.1 6s Cutting planes: Gomory: 4 MIR: 2 Zero half: 10 Explored 4493 nodes (69128 simplex iterations) in 9.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(3, 63), (6, 16), (6, 38), (10, 40), (10, 41), (11, 32), (11, 39), (12, 60), (12, 67), (13, 41), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (29, 62), (29, 63), (32, 59), (37, 48), (37, 70), (39, 66), (40, 73), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 23), (2, 74), (4, 45), (4, 52), (17, 64), (19, 25), (19, 56), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (33, 45), (33, 51), (34, 64), (34, 74), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 317 rows, 2850 columns and 116785 nonzeros Presolve time: 0.08s Presolved: 317 rows, 2850 columns, 116785 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 218 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 711.0000000 694.68750 2.29% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 82 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 103 706.00000 695.40070 1.50% - 0s 0 0 695.40070 0 105 706.00000 695.40070 1.50% - 0s 0 0 695.44226 0 97 706.00000 695.44226 1.50% - 0s 0 0 695.47099 0 95 706.00000 695.47099 1.49% - 0s 0 0 695.47954 0 98 706.00000 695.47954 1.49% - 0s 0 0 695.47954 0 100 706.00000 695.47954 1.49% - 1s 0 0 695.48359 0 97 706.00000 695.48359 1.49% - 1s 0 0 695.48691 0 105 706.00000 695.48691 1.49% - 1s 0 0 695.50552 0 103 706.00000 695.50552 1.49% - 1s 0 0 695.51458 0 104 706.00000 695.51458 1.49% - 1s 0 0 695.51624 0 105 706.00000 695.51624 1.48% - 1s 0 0 695.51624 0 107 706.00000 695.51624 1.48% - 1s 0 2 695.53112 0 107 706.00000 695.53112 1.48% - 1s * 439 240 13 705.0000000 697.80516 1.02% 17.2 2s * 1729 404 38 704.0000000 699.56574 0.63% 18.0 4s 1821 419 701.71875 22 63 704.00000 699.75000 0.60% 17.9 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 4053 nodes (65447 simplex iterations) in 8.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (8, 20), (10, 33), (10, 40), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65), (70, 72)] adding cut for [(35, 47), (36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 41), (15, 54), (15, 60), (59, 73), (41, 73), (60, 67)] Optimize a model with 319 rows, 2850 columns and 117571 nonzeros Presolve time: 0.08s Presolved: 319 rows, 2850 columns, 117571 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 85 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38762 0 98 706.00000 695.38762 1.50% - 0s 0 0 695.39976 0 97 706.00000 695.39976 1.50% - 0s 0 0 695.40549 0 103 706.00000 695.40549 1.50% - 0s 0 0 695.47633 0 96 706.00000 695.47633 1.49% - 0s 0 0 695.47633 0 98 706.00000 695.47633 1.49% - 0s 0 0 695.47785 0 96 706.00000 695.47785 1.49% - 1s 0 0 695.47785 0 98 706.00000 695.47785 1.49% - 1s 0 0 695.48804 0 100 706.00000 695.48804 1.49% - 1s 0 0 695.48804 0 102 706.00000 695.48804 1.49% - 1s 0 0 695.49576 0 100 706.00000 695.49576 1.49% - 1s 0 0 695.49624 0 102 706.00000 695.49624 1.49% - 1s 0 0 695.51430 0 101 706.00000 695.51430 1.49% - 1s 0 0 695.51499 0 103 706.00000 695.51499 1.49% - 1s 0 0 695.51513 0 107 706.00000 695.51513 1.49% - 1s 0 2 695.51577 0 107 706.00000 695.51577 1.49% - 1s H 600 356 705.0000000 697.65895 1.04% 15.8 2s 1613 511 701.33333 30 55 705.00000 699.30812 0.81% 17.0 5s 4277 1072 701.87597 23 73 705.00000 700.99455 0.57% 16.1 10s * 7386 821 37 704.0000000 701.93820 0.29% 15.3 14s 7610 693 702.47720 29 63 704.00000 702.12776 0.27% 15.2 15s Cutting planes: Gomory: 4 MIR: 2 Zero half: 8 Explored 8472 nodes (122495 simplex iterations) in 15.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.040000000000e+02, best bound 7.040000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 30), (16, 58), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 52), (34, 74), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 320 rows, 2850 columns and 118652 nonzeros Presolve time: 0.08s Presolved: 320 rows, 2850 columns, 118652 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 247 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 711.0000000 694.68750 2.29% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 82 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 103 706.00000 695.40070 1.50% - 0s 0 0 695.40070 0 105 706.00000 695.40070 1.50% - 0s 0 0 695.44226 0 97 706.00000 695.44226 1.50% - 0s 0 0 695.46957 0 95 706.00000 695.46957 1.49% - 1s 0 0 695.48025 0 98 706.00000 695.48025 1.49% - 1s 0 0 695.48223 0 100 706.00000 695.48223 1.49% - 1s 0 0 695.49780 0 102 706.00000 695.49780 1.49% - 1s 0 0 695.49780 0 104 706.00000 695.49780 1.49% - 1s 0 0 695.50808 0 98 706.00000 695.50808 1.49% - 1s 0 0 695.50829 0 102 706.00000 695.50829 1.49% - 1s 0 0 695.51084 0 105 706.00000 695.51084 1.49% - 1s 0 2 695.51354 0 105 706.00000 695.51354 1.49% - 1s * 584 346 18 705.0000000 698.54444 0.92% 16.1 2s 1714 551 700.61135 20 77 705.00000 699.53846 0.77% 16.6 5s 4867 1030 702.88298 27 74 705.00000 701.47917 0.50% 15.6 10s 8220 560 703.82609 23 76 705.00000 702.80374 0.31% 14.9 15s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 9153 nodes (132474 simplex iterations) in 16.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(8, 54), (9, 36), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (47, 53), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 74), (2, 34), (4, 45), (4, 17), (6, 49), (6, 30), (34, 64), (45, 52), (48, 49), (17, 64), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (63, 74)] Optimize a model with 322 rows, 2850 columns and 119608 nonzeros Presolve time: 0.08s Presolved: 322 rows, 2850 columns, 119608 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.19545 0 92 706.00000 695.19545 1.53% - 0s 0 0 695.19545 0 82 706.00000 695.19545 1.53% - 0s 0 0 695.19545 0 92 706.00000 695.19545 1.53% - 0s 0 0 695.28750 0 96 706.00000 695.28750 1.52% - 0s 0 0 695.32951 0 98 706.00000 695.32951 1.51% - 0s 0 0 695.40635 0 103 706.00000 695.40635 1.50% - 0s 0 0 695.41191 0 100 706.00000 695.41191 1.50% - 0s 0 0 695.41191 0 104 706.00000 695.41191 1.50% - 0s 0 0 695.41191 0 102 706.00000 695.41191 1.50% - 1s 0 0 695.41191 0 104 706.00000 695.41191 1.50% - 1s 0 0 695.41191 0 102 706.00000 695.41191 1.50% - 1s 0 2 695.41250 0 102 706.00000 695.41250 1.50% - 1s * 543 338 11 705.0000000 697.73326 1.03% 14.2 2s 1341 463 702.25478 23 75 705.00000 699.31481 0.81% 16.5 5s 4146 438 cutoff 28 705.00000 701.66913 0.47% 16.1 10s Cutting planes: Gomory: 3 MIR: 2 Zero half: 5 Explored 5996 nodes (91133 simplex iterations) in 12.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (28, 53), (29, 62), (29, 63), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (47, 53), (61, 71), (61, 72), (70, 72)] adding cut for [(8, 54), (9, 36), (9, 55), (11, 39), (11, 59), (12, 66), (12, 67), (15, 20), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (36, 54), (39, 66), (50, 57), (59, 73), (60, 67)] Optimize a model with 324 rows, 2850 columns and 120310 nonzeros Presolve time: 0.08s Presolved: 324 rows, 2850 columns, 120310 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 258 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 82 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 91 706.00000 695.26737 1.52% - 0s 0 0 695.38808 0 94 706.00000 695.38808 1.50% - 0s 0 0 695.40070 0 103 706.00000 695.40070 1.50% - 0s 0 0 695.40070 0 105 706.00000 695.40070 1.50% - 0s 0 0 695.44226 0 97 706.00000 695.44226 1.50% - 0s 0 0 695.46957 0 95 706.00000 695.46957 1.49% - 0s 0 0 695.48025 0 98 706.00000 695.48025 1.49% - 0s 0 0 695.48223 0 100 706.00000 695.48223 1.49% - 1s 0 0 695.49780 0 102 706.00000 695.49780 1.49% - 1s 0 0 695.49780 0 104 706.00000 695.49780 1.49% - 1s 0 0 695.50808 0 98 706.00000 695.50808 1.49% - 1s 0 0 695.50829 0 102 706.00000 695.50829 1.49% - 1s 0 0 695.51084 0 105 706.00000 695.51084 1.49% - 1s 0 2 695.51354 0 105 706.00000 695.51354 1.49% - 1s * 817 424 46 705.0000000 698.37872 0.94% 18.3 3s 1600 489 701.39803 18 73 705.00000 699.51069 0.78% 18.0 5s 4524 854 cutoff 23 705.00000 701.64041 0.48% 16.6 10s 7806 137 703.75992 27 74 705.00000 703.32759 0.24% 15.5 15s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 8004 nodes (123011 simplex iterations) in 15.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (6, 16), (6, 38), (8, 20), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 73), (66, 67), (35, 53), (35, 47), (36, 54), (39, 66), (9, 36), (9, 47), (11, 32), (11, 39), (13, 59), (12, 60), (12, 67), (15, 60), (15, 54), (59, 73), (28, 53)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (34, 64), (4, 45), (4, 17), (10, 40), (10, 26), (17, 50), (40, 41), (24, 64), (24, 57), (25, 50), (25, 57), (26, 56)] Optimize a model with 327 rows, 2850 columns and 120977 nonzeros Presolve time: 0.08s Presolved: 327 rows, 2850 columns, 120977 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 83 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38762 0 98 706.00000 695.38762 1.50% - 0s 0 0 695.39976 0 98 706.00000 695.39976 1.50% - 0s 0 0 695.40549 0 102 706.00000 695.40549 1.50% - 0s 0 0 695.40549 0 104 706.00000 695.40549 1.50% - 0s 0 0 695.47633 0 96 706.00000 695.47633 1.49% - 0s 0 0 695.47633 0 98 706.00000 695.47633 1.49% - 0s 0 0 695.47810 0 97 706.00000 695.47810 1.49% - 0s 0 0 695.47810 0 97 706.00000 695.47810 1.49% - 1s 0 0 695.47810 0 99 706.00000 695.47810 1.49% - 1s 0 2 695.51771 0 99 706.00000 695.51771 1.48% - 1s H 251 132 705.0000000 697.87500 1.01% 19.5 2s 743 295 699.21814 16 78 705.00000 698.85743 0.87% 19.7 5s 3798 626 702.13953 23 67 705.00000 701.42155 0.51% 16.8 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 6 Explored 6392 nodes (100223 simplex iterations) in 13.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (6, 16), (6, 38), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 25), (24, 57), (25, 50), (29, 62), (29, 63), (32, 73), (34, 74), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 328 rows, 2850 columns and 121923 nonzeros Presolve time: 0.08s Presolved: 328 rows, 2850 columns, 121923 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.68750 2.16% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 82 706.00000 695.26737 1.52% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38862 0 99 706.00000 695.38862 1.50% - 0s 0 0 695.39781 0 101 706.00000 695.39781 1.50% - 0s 0 0 695.39781 0 103 706.00000 695.39781 1.50% - 0s 0 0 695.42378 0 99 706.00000 695.42378 1.50% - 0s 0 0 695.42378 0 101 706.00000 695.42378 1.50% - 0s 0 0 695.43609 0 97 706.00000 695.43609 1.50% - 1s 0 0 695.43609 0 99 706.00000 695.43609 1.50% - 1s 0 0 695.45092 0 100 706.00000 695.45092 1.49% - 1s 0 0 695.45938 0 103 706.00000 695.45938 1.49% - 1s 0 0 695.45938 0 106 706.00000 695.45938 1.49% - 1s 0 0 695.48523 0 99 706.00000 695.48523 1.49% - 1s 0 0 695.49592 0 106 706.00000 695.49592 1.49% - 1s 0 0 695.51858 0 102 706.00000 695.51858 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 2 695.52273 0 106 706.00000 695.52273 1.48% - 1s 1561 594 702.26667 18 83 706.00000 699.41182 0.93% 17.3 5s * 1602 530 25 705.0000000 699.43410 0.79% 17.4 5s 4135 964 703.69737 31 57 705.00000 701.31799 0.52% 16.8 10s 7271 704 cutoff 25 705.00000 702.57079 0.34% 15.8 15s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 8595 nodes (130016 simplex iterations) in 16.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 63), (4, 41), (4, 45), (8, 36), (10, 33), (10, 40), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (35, 47), (39, 66), (9, 54), (9, 47), (11, 39), (11, 59), (12, 67), (12, 60), (13, 73), (15, 54), (15, 60), (59, 73)] Optimize a model with 330 rows, 2850 columns and 122917 nonzeros Presolve time: 0.09s Presolved: 330 rows, 2850 columns, 122917 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.19545 0 92 706.00000 695.19545 1.53% - 0s 0 0 695.19545 0 82 706.00000 695.19545 1.53% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38862 0 99 706.00000 695.38862 1.50% - 0s 0 0 695.39781 0 101 706.00000 695.39781 1.50% - 0s 0 0 695.39781 0 103 706.00000 695.39781 1.50% - 0s 0 0 695.42378 0 99 706.00000 695.42378 1.50% - 0s 0 0 695.42378 0 101 706.00000 695.42378 1.50% - 1s 0 0 695.43609 0 97 706.00000 695.43609 1.50% - 1s 0 0 695.43609 0 99 706.00000 695.43609 1.50% - 1s 0 0 695.45092 0 100 706.00000 695.45092 1.49% - 1s 0 0 695.45938 0 103 706.00000 695.45938 1.49% - 1s 0 0 695.45938 0 106 706.00000 695.45938 1.49% - 1s 0 0 695.48523 0 99 706.00000 695.48523 1.49% - 1s 0 0 695.49592 0 106 706.00000 695.49592 1.49% - 1s 0 0 695.51858 0 102 706.00000 695.51858 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 2 695.52273 0 106 706.00000 695.52273 1.48% - 1s H 600 328 705.0000000 697.78735 1.02% 17.1 2s 1386 462 702.06897 27 65 705.00000 699.42627 0.79% 18.0 5s 4262 946 cutoff 28 705.00000 701.47727 0.50% 16.2 10s 7091 789 703.73333 24 56 705.00000 702.43082 0.36% 15.5 15s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 8792 nodes (130615 simplex iterations) in 17.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 41), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 60), (12, 67), (13, 59), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (32, 73), (33, 45), (37, 70), (37, 72), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(34, 64), (34, 74), (48, 49), (17, 64), (17, 52), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49), (30, 46), (63, 74)] Optimize a model with 332 rows, 2850 columns and 124030 nonzeros Presolve time: 0.09s Presolved: 332 rows, 2850 columns, 124030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 82 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 711.0000000 694.68750 2.29% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.19545 0 92 706.00000 695.19545 1.53% - 0s 0 0 695.19545 0 82 706.00000 695.19545 1.53% - 0s 0 0 695.26737 0 92 706.00000 695.26737 1.52% - 0s 0 0 695.38862 0 99 706.00000 695.38862 1.50% - 0s 0 0 695.39781 0 101 706.00000 695.39781 1.50% - 0s 0 0 695.39781 0 103 706.00000 695.39781 1.50% - 0s 0 0 695.42378 0 99 706.00000 695.42378 1.50% - 0s 0 0 695.42378 0 101 706.00000 695.42378 1.50% - 1s 0 0 695.43609 0 97 706.00000 695.43609 1.50% - 1s 0 0 695.43609 0 99 706.00000 695.43609 1.50% - 1s 0 0 695.45092 0 100 706.00000 695.45092 1.49% - 1s 0 0 695.45938 0 103 706.00000 695.45938 1.49% - 1s 0 0 695.45938 0 106 706.00000 695.45938 1.49% - 1s 0 0 695.48523 0 99 706.00000 695.48523 1.49% - 1s 0 0 695.49592 0 106 706.00000 695.49592 1.49% - 1s 0 0 695.51858 0 102 706.00000 695.51858 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 0 695.52062 0 106 706.00000 695.52062 1.48% - 1s 0 2 695.52273 0 106 706.00000 695.52273 1.48% - 1s H 773 417 705.0000000 697.67101 1.04% 17.2 3s 1483 525 699.37348 20 88 705.00000 699.28794 0.81% 17.4 5s 4228 1076 703.56522 37 48 705.00000 701.27928 0.53% 16.0 10s 7413 940 702.53032 22 66 705.00000 702.35165 0.38% 15.2 15s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 9579 nodes (138769 simplex iterations) in 18.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 54), (12, 67), (13, 41), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (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, 73), (33, 45), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 333 rows, 2850 columns and 125255 nonzeros Presolve time: 0.09s Presolved: 333 rows, 2850 columns, 125255 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.68750 2.16% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.22030 0 92 706.00000 695.22030 1.53% - 0s 0 0 695.22030 0 82 706.00000 695.22030 1.53% - 0s 0 0 695.22030 0 92 706.00000 695.22030 1.53% - 0s 0 0 695.32266 0 97 706.00000 695.32266 1.51% - 0s 0 0 695.39067 0 93 706.00000 695.39067 1.50% - 0s 0 0 695.39067 0 97 706.00000 695.39067 1.50% - 0s 0 0 695.39067 0 96 706.00000 695.39067 1.50% - 1s 0 0 695.39067 0 99 706.00000 695.39067 1.50% - 1s 0 0 695.40043 0 98 706.00000 695.40043 1.50% - 1s 0 0 695.40043 0 102 706.00000 695.40043 1.50% - 1s 0 0 695.40043 0 103 706.00000 695.40043 1.50% - 1s 0 0 695.41499 0 98 706.00000 695.41499 1.50% - 1s 0 0 695.42774 0 99 706.00000 695.42774 1.50% - 1s 0 0 695.44141 0 104 706.00000 695.44141 1.50% - 1s 0 0 695.45545 0 104 706.00000 695.45545 1.49% - 1s 0 0 695.45678 0 104 706.00000 695.45678 1.49% - 1s 0 0 695.46074 0 105 706.00000 695.46074 1.49% - 1s 0 0 695.47019 0 107 706.00000 695.47019 1.49% - 1s 0 0 695.47637 0 103 706.00000 695.47637 1.49% - 1s 0 0 695.48015 0 104 706.00000 695.48015 1.49% - 1s 0 0 695.48015 0 106 706.00000 695.48015 1.49% - 1s 0 0 695.50322 0 100 706.00000 695.50322 1.49% - 1s 0 0 695.50853 0 103 706.00000 695.50853 1.49% - 1s 0 0 695.50919 0 107 706.00000 695.50919 1.49% - 1s 0 0 695.51048 0 106 706.00000 695.51048 1.49% - 1s 0 0 695.51235 0 106 706.00000 695.51235 1.49% - 1s 0 0 695.51235 0 106 706.00000 695.51235 1.49% - 2s 0 2 695.52230 0 106 706.00000 695.52230 1.48% - 2s * 662 344 38 705.0000000 698.46758 0.93% 17.3 3s 1156 403 700.61957 17 69 705.00000 699.16189 0.83% 17.9 5s 4008 845 702.58012 16 75 705.00000 701.57677 0.49% 16.0 10s 7140 295 cutoff 24 705.00000 703.10000 0.27% 14.7 15s Cutting planes: Gomory: 3 MIR: 2 Zero half: 8 Mod-K: 1 Explored 7570 nodes (109040 simplex iterations) in 15.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 59), (17, 50), (17, 64), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (31, 75), (32, 56), (33, 45), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (14, 58), (14, 28), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (28, 53), (61, 71), (61, 72), (30, 46), (30, 49)] adding cut for [(66, 67), (12, 67), (12, 39), (39, 66)] Optimize a model with 336 rows, 2850 columns and 125803 nonzeros Presolve time: 0.09s Presolved: 336 rows, 2850 columns, 125803 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 238 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.24251 0 94 706.00000 695.24251 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39407 0 103 706.00000 695.39407 1.50% - 0s 0 0 695.44378 0 96 706.00000 695.44378 1.50% - 0s 0 0 695.44451 0 99 706.00000 695.44451 1.50% - 0s 0 0 695.45475 0 102 706.00000 695.45475 1.49% - 0s 0 0 695.45475 0 104 706.00000 695.45475 1.49% - 0s 0 0 695.47232 0 103 706.00000 695.47232 1.49% - 1s 0 0 695.47570 0 105 706.00000 695.47570 1.49% - 1s 0 0 695.51027 0 100 706.00000 695.51027 1.49% - 1s 0 0 695.65840 0 102 706.00000 695.65840 1.46% - 1s 0 0 695.65840 0 104 706.00000 695.65840 1.46% - 1s 0 0 695.67478 0 103 706.00000 695.67478 1.46% - 1s 0 0 695.67478 0 105 706.00000 695.67478 1.46% - 1s 0 0 695.67843 0 103 706.00000 695.67843 1.46% - 1s 0 0 695.68052 0 101 706.00000 695.68052 1.46% - 1s 0 0 695.68576 0 106 706.00000 695.68576 1.46% - 1s 0 0 695.71212 0 108 706.00000 695.71212 1.46% - 1s 0 0 695.71329 0 109 706.00000 695.71329 1.46% - 1s 0 0 695.76798 0 110 706.00000 695.76798 1.45% - 1s 0 0 695.77528 0 109 706.00000 695.77528 1.45% - 1s 0 0 695.78913 0 108 706.00000 695.78913 1.45% - 1s 0 0 695.80664 0 110 706.00000 695.80664 1.44% - 1s 0 0 695.81094 0 108 706.00000 695.81094 1.44% - 1s 0 0 695.82556 0 111 706.00000 695.82556 1.44% - 1s 0 0 695.82897 0 109 706.00000 695.82897 1.44% - 1s 0 0 695.83619 0 111 706.00000 695.83619 1.44% - 1s 0 0 695.83994 0 117 706.00000 695.83994 1.44% - 1s 0 0 695.84566 0 108 706.00000 695.84566 1.44% - 1s 0 0 695.84964 0 110 706.00000 695.84964 1.44% - 1s 0 0 695.85190 0 111 706.00000 695.85190 1.44% - 1s 0 2 695.85209 0 111 706.00000 695.85209 1.44% - 2s 613 395 701.35880 16 111 706.00000 697.71862 1.17% 16.0 5s * 2222 714 44 705.0000000 700.07697 0.70% 17.8 8s 2987 900 701.08403 18 95 705.00000 700.66489 0.61% 17.6 10s 5889 1146 702.69719 22 85 705.00000 701.86828 0.44% 16.4 15s 8981 127 cutoff 23 705.00000 703.59375 0.20% 15.4 20s Cutting planes: Gomory: 8 MIR: 1 Zero half: 6 Explored 9135 nodes (139747 simplex iterations) in 20.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 49), (9, 20), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 53), (29, 63), (29, 75), (30, 46), (35, 47), (35, 53), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (49, 75), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(66, 67), (36, 54), (33, 51), (39, 66), (8, 36), (10, 33), (10, 40), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (40, 73), (19, 51), (19, 56), (26, 32), (26, 56), (59, 73)] Optimize a model with 338 rows, 2850 columns and 126554 nonzeros Presolve time: 0.09s Presolved: 338 rows, 2850 columns, 126554 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 716.0000000 694.68750 2.98% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.29630 0 94 706.00000 695.29630 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39539 0 101 706.00000 695.39539 1.50% - 0s 0 0 695.39539 0 103 706.00000 695.39539 1.50% - 0s 0 0 695.41988 0 95 706.00000 695.41988 1.50% - 0s 0 0 695.42348 0 101 706.00000 695.42348 1.50% - 0s 0 0 695.43741 0 103 706.00000 695.43741 1.50% - 1s 0 0 695.52779 0 104 706.00000 695.52779 1.48% - 1s 0 0 695.54352 0 107 706.00000 695.54352 1.48% - 1s 0 0 695.55471 0 104 706.00000 695.55471 1.48% - 1s 0 0 695.56262 0 105 706.00000 695.56262 1.48% - 1s 0 0 695.56457 0 106 706.00000 695.56457 1.48% - 1s 0 0 695.56830 0 108 706.00000 695.56830 1.48% - 1s 0 0 695.56830 0 108 706.00000 695.56830 1.48% - 1s 0 2 695.58126 0 108 706.00000 695.58126 1.48% - 1s * 472 280 26 705.0000000 698.12857 0.97% 15.7 2s 1581 469 701.60170 27 75 705.00000 699.61364 0.76% 17.2 5s 4558 890 703.56195 28 71 705.00000 701.54566 0.49% 15.8 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 11 Explored 7012 nodes (105950 simplex iterations) in 14.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 45), (4, 52), (10, 33), (10, 40), (11, 32), (11, 73), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(3, 63), (6, 16), (6, 38), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (29, 62), (29, 63), (37, 70), (37, 72), (39, 59), (39, 66), (60, 67), (61, 71), (61, 72), (62, 70)] Optimize a model with 340 rows, 2850 columns and 127181 nonzeros Presolve time: 0.09s Presolved: 340 rows, 2850 columns, 127181 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.68750 2.84% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.29630 0 94 706.00000 695.29630 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39539 0 101 706.00000 695.39539 1.50% - 0s 0 0 695.39539 0 103 706.00000 695.39539 1.50% - 0s 0 0 695.41988 0 95 706.00000 695.41988 1.50% - 0s 0 0 695.42348 0 101 706.00000 695.42348 1.50% - 1s 0 0 695.43741 0 103 706.00000 695.43741 1.50% - 1s 0 0 695.52779 0 104 706.00000 695.52779 1.48% - 1s 0 0 695.54352 0 107 706.00000 695.54352 1.48% - 1s 0 0 695.55375 0 102 706.00000 695.55375 1.48% - 1s 0 0 695.55830 0 105 706.00000 695.55830 1.48% - 1s 0 0 695.56567 0 105 706.00000 695.56567 1.48% - 1s 0 0 695.57028 0 108 706.00000 695.57028 1.48% - 1s 0 0 695.57967 0 107 706.00000 695.57967 1.48% - 1s 0 0 695.57967 0 109 706.00000 695.57967 1.48% - 1s 0 0 695.58726 0 107 706.00000 695.58726 1.47% - 1s 0 0 695.58726 0 109 706.00000 695.58726 1.47% - 1s 0 0 695.61877 0 102 706.00000 695.61877 1.47% - 1s 0 0 695.61894 0 104 706.00000 695.61894 1.47% - 1s 0 0 695.62132 0 104 706.00000 695.62132 1.47% - 1s 0 2 695.62250 0 104 706.00000 695.62250 1.47% - 1s 1348 513 700.87500 21 73 706.00000 699.15470 0.97% 18.9 5s * 1808 523 37 705.0000000 700.03251 0.70% 18.2 5s 4008 704 703.54167 25 61 705.00000 701.72305 0.46% 16.9 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 6279 nodes (97775 simplex iterations) in 13.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 51), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (26, 32), (26, 56), (29, 62), (33, 51), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 341 rows, 2850 columns and 128127 nonzeros Presolve time: 0.09s Presolved: 341 rows, 2850 columns, 128127 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.68750 2.16% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.29630 0 94 706.00000 695.29630 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39539 0 101 706.00000 695.39539 1.50% - 0s 0 0 695.39539 0 103 706.00000 695.39539 1.50% - 0s 0 0 695.41988 0 95 706.00000 695.41988 1.50% - 0s 0 0 695.42348 0 101 706.00000 695.42348 1.50% - 0s 0 0 695.43741 0 103 706.00000 695.43741 1.50% - 1s 0 0 695.52779 0 104 706.00000 695.52779 1.48% - 1s 0 0 695.54352 0 107 706.00000 695.54352 1.48% - 1s 0 0 695.55375 0 102 706.00000 695.55375 1.48% - 1s 0 0 695.55830 0 105 706.00000 695.55830 1.48% - 1s 0 0 695.56567 0 105 706.00000 695.56567 1.48% - 1s 0 0 695.57028 0 108 706.00000 695.57028 1.48% - 1s 0 0 695.57967 0 107 706.00000 695.57967 1.48% - 1s 0 0 695.57967 0 109 706.00000 695.57967 1.48% - 1s 0 0 695.58726 0 107 706.00000 695.58726 1.47% - 1s 0 0 695.58726 0 109 706.00000 695.58726 1.47% - 1s 0 0 695.61877 0 102 706.00000 695.61877 1.47% - 1s 0 0 695.61894 0 104 706.00000 695.61894 1.47% - 1s 0 0 695.62132 0 104 706.00000 695.62132 1.47% - 1s 0 2 695.62250 0 104 706.00000 695.62250 1.47% - 1s * 376 195 16 705.0000000 697.75125 1.03% 18.1 2s 1519 416 702.88710 21 73 705.00000 699.58614 0.77% 18.1 5s 4502 600 703.60000 22 65 705.00000 702.18519 0.40% 16.3 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 11 Explored 5768 nodes (89992 simplex iterations) in 12.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (28, 46), (28, 53), (30, 46), (30, 49), (35, 47), (37, 48), (37, 70), (49, 75), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 45), (4, 45), (4, 17), (32, 56), (40, 73), (10, 33), (10, 40), (11, 32), (11, 73), (17, 64), (50, 57), (19, 51), (19, 25), (25, 50), (24, 64), (24, 57), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 63), (42, 43), (42, 44), (43, 65), (23, 65), (23, 62), (29, 62), (29, 63)] Optimize a model with 344 rows, 2850 columns and 128616 nonzeros Presolve time: 0.09s Presolved: 344 rows, 2850 columns, 128616 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 714.0000000 694.68750 2.70% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.29630 0 94 706.00000 695.29630 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39254 0 102 706.00000 695.39254 1.50% - 0s 0 0 695.41898 0 96 706.00000 695.41898 1.50% - 0s 0 0 695.43884 0 102 706.00000 695.43884 1.50% - 0s 0 0 695.45700 0 103 706.00000 695.45700 1.49% - 0s 0 0 695.48254 0 99 706.00000 695.48254 1.49% - 0s 0 0 695.49713 0 104 706.00000 695.49713 1.49% - 1s 0 0 695.50368 0 106 706.00000 695.50368 1.49% - 1s 0 0 695.52875 0 100 706.00000 695.52875 1.48% - 1s 0 0 695.54419 0 107 706.00000 695.54419 1.48% - 1s 0 0 695.56089 0 102 706.00000 695.56089 1.48% - 1s 0 0 695.56432 0 100 706.00000 695.56432 1.48% - 1s 0 0 695.56445 0 102 706.00000 695.56445 1.48% - 1s 0 0 695.56700 0 105 706.00000 695.56700 1.48% - 1s 0 0 695.56700 0 105 706.00000 695.56700 1.48% - 1s 0 2 695.56928 0 105 706.00000 695.56928 1.48% - 1s 1502 543 701.66887 22 78 706.00000 699.56516 0.91% 17.9 5s * 1564 481 36 705.0000000 699.66351 0.76% 17.7 5s 4374 986 703.11765 31 56 705.00000 701.48684 0.50% 16.0 10s 7416 634 703.37500 26 57 705.00000 702.74269 0.32% 15.1 15s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 8435 nodes (122500 simplex iterations) in 16.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(3, 75), (6, 16), (6, 38), (9, 36), (9, 47), (12, 39), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 63), (29, 63), (29, 75), (36, 54), (37, 48), (37, 70), (39, 66), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(34, 74), (4, 41), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (2, 74), (2, 44), (17, 64), (17, 50), (19, 51), (19, 25), (25, 50), (24, 64), (24, 57), (13, 41), (42, 65), (42, 57)] Optimize a model with 346 rows, 2850 columns and 129271 nonzeros Presolve time: 0.09s Presolved: 346 rows, 2850 columns, 129271 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 718.0000000 694.68750 3.25% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.23544 0 96 706.00000 695.23544 1.52% - 0s 0 0 695.23544 0 86 706.00000 695.23544 1.52% - 0s 0 0 695.29630 0 94 706.00000 695.29630 1.52% - 0s 0 0 695.34222 0 98 706.00000 695.34222 1.51% - 0s 0 0 695.39254 0 102 706.00000 695.39254 1.50% - 0s 0 0 695.41898 0 96 706.00000 695.41898 1.50% - 0s 0 0 695.43884 0 102 706.00000 695.43884 1.50% - 0s 0 0 695.45700 0 103 706.00000 695.45700 1.49% - 0s 0 0 695.47423 0 99 706.00000 695.47423 1.49% - 0s 0 0 695.48811 0 100 706.00000 695.48811 1.49% - 0s 0 0 695.48970 0 106 706.00000 695.48970 1.49% - 1s 0 0 695.55585 0 101 706.00000 695.55585 1.48% - 1s 0 0 695.56418 0 104 706.00000 695.56418 1.48% - 1s 0 0 695.56892 0 105 706.00000 695.56892 1.48% - 1s 0 0 695.56892 0 107 706.00000 695.56892 1.48% - 1s 0 0 695.58453 0 106 706.00000 695.58453 1.48% - 1s 0 0 695.69826 0 103 706.00000 695.69826 1.46% - 1s 0 0 695.73230 0 106 706.00000 695.73230 1.45% - 1s 0 0 695.78235 0 110 706.00000 695.78235 1.45% - 1s 0 0 695.82855 0 103 706.00000 695.82855 1.44% - 1s 0 0 695.83120 0 104 706.00000 695.83120 1.44% - 1s 0 0 695.83205 0 105 706.00000 695.83205 1.44% - 1s 0 2 695.83218 0 105 706.00000 695.83218 1.44% - 1s * 1006 460 24 705.0000000 698.48193 0.92% 19.3 4s 1330 483 703.15152 22 85 705.00000 699.51685 0.78% 18.9 5s 4191 653 702.23630 18 83 705.00000 701.77321 0.46% 17.1 10s Cutting planes: Gomory: 1 MIR: 2 Zero half: 14 Explored 6522 nodes (104525 simplex iterations) in 14.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (47, 53), (49, 75), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (34, 64), (34, 52), (4, 45), (4, 17), (10, 41), (10, 26), (13, 41), (17, 50), (24, 64), (24, 57), (25, 50), (25, 57), (26, 56)] adding cut for [(32, 40), (39, 66), (8, 54), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (40, 73), (59, 73), (60, 67)] Optimize a model with 349 rows, 2850 columns and 130063 nonzeros Presolve time: 0.08s Presolved: 349 rows, 2850 columns, 130063 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 226 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 722.0000000 694.68750 3.78% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.27491 0 94 706.00000 695.27491 1.52% - 0s 0 0 695.27491 0 86 706.00000 695.27491 1.52% - 0s 0 0 695.32016 0 93 706.00000 695.32016 1.51% - 0s 0 0 695.38233 0 95 706.00000 695.38233 1.50% - 0s 0 0 695.45899 0 98 706.00000 695.45899 1.49% - 0s 0 0 695.46848 0 100 706.00000 695.46848 1.49% - 0s 0 0 695.63169 0 96 706.00000 695.63169 1.47% - 0s 0 0 695.67233 0 102 706.00000 695.67233 1.46% - 0s 0 0 695.67233 0 104 706.00000 695.67233 1.46% - 1s 0 0 695.69879 0 97 706.00000 695.69879 1.46% - 1s 0 0 695.69917 0 100 706.00000 695.69917 1.46% - 1s 0 0 695.73080 0 103 706.00000 695.73080 1.45% - 1s 0 0 695.73619 0 109 706.00000 695.73619 1.45% - 1s 0 0 695.76485 0 101 706.00000 695.76485 1.45% - 1s 0 0 695.76485 0 103 706.00000 695.76485 1.45% - 1s 0 0 695.76485 0 103 706.00000 695.76485 1.45% - 1s 0 0 695.76485 0 105 706.00000 695.76485 1.45% - 1s 0 2 695.84364 0 105 706.00000 695.84364 1.44% - 1s * 521 263 22 705.0000000 698.61986 0.90% 18.8 2s 1388 412 cutoff 22 705.00000 699.50939 0.78% 19.7 5s 4127 648 703.47665 25 62 705.00000 701.68503 0.47% 17.5 10s Cutting planes: Gomory: 2 MIR: 1 Zero half: 6 Explored 6554 nodes (105478 simplex iterations) in 13.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 45), (10, 33), (10, 40), (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, 40), (32, 56), (33, 45), (34, 74), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(6, 30), (6, 48), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 41), (15, 54), (15, 60), (28, 46), (28, 53), (30, 46), (31, 49), (36, 54), (39, 66), (41, 73), (47, 53), (48, 49), (59, 73), (60, 67)] adding cut for [(3, 75), (37, 70), (37, 72), (14, 55), (14, 58), (16, 58), (16, 38), (8, 20), (20, 55), (21, 71), (21, 38), (22, 75), (22, 62), (61, 71), (61, 72), (62, 70)] Optimize a model with 352 rows, 2850 columns and 130777 nonzeros Presolve time: 0.09s Presolved: 352 rows, 2850 columns, 130777 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.27491 0 94 706.00000 695.27491 1.52% - 0s 0 0 695.27491 0 86 706.00000 695.27491 1.52% - 0s 0 0 695.33559 0 93 706.00000 695.33559 1.51% - 0s 0 0 695.47853 0 95 706.00000 695.47853 1.49% - 0s 0 0 695.61314 0 99 706.00000 695.61314 1.47% - 0s 0 0 695.61314 0 101 706.00000 695.61314 1.47% - 0s 0 0 695.64057 0 105 706.00000 695.64057 1.47% - 0s 0 0 695.64057 0 107 706.00000 695.64057 1.47% - 1s 0 0 695.71377 0 100 706.00000 695.71377 1.46% - 1s 0 0 695.71377 0 102 706.00000 695.71377 1.46% - 1s 0 0 695.72829 0 103 706.00000 695.72829 1.45% - 1s 0 0 695.72829 0 105 706.00000 695.72829 1.45% - 1s 0 0 695.75039 0 107 706.00000 695.75039 1.45% - 1s 0 0 695.75088 0 109 706.00000 695.75088 1.45% - 1s 0 0 695.75088 0 108 706.00000 695.75088 1.45% - 1s 0 0 695.75088 0 110 706.00000 695.75088 1.45% - 1s 0 2 695.80100 0 110 706.00000 695.80100 1.44% - 1s * 655 359 33 705.0000000 698.62294 0.90% 18.2 3s 1436 437 702.91795 29 66 705.00000 699.77163 0.74% 18.5 5s 4100 690 703.42857 28 54 705.00000 701.86705 0.44% 16.7 10s Cutting planes: Gomory: 3 MIR: 3 Zero half: 8 Explored 6331 nodes (98997 simplex iterations) in 13.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (26, 56), (30, 46), (30, 49), (32, 56), (37, 48), (37, 70), (39, 66), (40, 73), (48, 49), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(4, 41), (4, 45), (13, 41), (17, 50), (17, 64), (19, 25), (19, 51), (22, 62), (22, 75), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (29, 62), (29, 63), (31, 75), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 354 rows, 2850 columns and 131518 nonzeros Presolve time: 0.09s Presolved: 354 rows, 2850 columns, 131518 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 261 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.68750 2.84% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26341 0 94 706.00000 695.26341 1.52% - 0s 0 0 695.26341 0 86 706.00000 695.26341 1.52% - 0s 0 0 695.31351 0 95 706.00000 695.31351 1.51% - 0s 0 0 695.38233 0 95 706.00000 695.38233 1.50% - 0s 0 0 695.45233 0 97 706.00000 695.45233 1.49% - 0s 0 0 695.45233 0 99 706.00000 695.45233 1.49% - 0s 0 0 695.47875 0 98 706.00000 695.47875 1.49% - 1s 0 0 695.47875 0 100 706.00000 695.47875 1.49% - 1s 0 0 695.48831 0 101 706.00000 695.48831 1.49% - 1s 0 0 695.51317 0 101 706.00000 695.51317 1.49% - 1s 0 0 695.51317 0 103 706.00000 695.51317 1.49% - 1s 0 0 695.54445 0 107 706.00000 695.54445 1.48% - 1s 0 0 695.54786 0 105 706.00000 695.54786 1.48% - 1s 0 0 695.54786 0 107 706.00000 695.54786 1.48% - 1s 0 0 695.58241 0 104 706.00000 695.58241 1.48% - 1s 0 0 695.58659 0 107 706.00000 695.58659 1.47% - 1s 0 0 695.61727 0 105 706.00000 695.61727 1.47% - 1s 0 0 695.61854 0 104 706.00000 695.61854 1.47% - 1s 0 0 695.62406 0 105 706.00000 695.62406 1.47% - 1s 0 0 695.70286 0 105 706.00000 695.70286 1.46% - 1s 0 0 695.74444 0 101 706.00000 695.74444 1.45% - 1s 0 0 695.76126 0 108 706.00000 695.76126 1.45% - 1s 0 0 695.78821 0 105 706.00000 695.78821 1.45% - 1s 0 0 695.79211 0 110 706.00000 695.79211 1.45% - 1s 0 0 695.80162 0 110 706.00000 695.80162 1.44% - 1s 0 0 695.83203 0 107 706.00000 695.83203 1.44% - 1s 0 0 695.83312 0 111 706.00000 695.83312 1.44% - 1s 0 0 695.85789 0 110 706.00000 695.85789 1.44% - 1s 0 0 695.86027 0 112 706.00000 695.86027 1.44% - 1s 0 2 695.86203 0 112 706.00000 695.86203 1.44% - 2s 993 481 704.83817 24 76 706.00000 698.54054 1.06% 19.4 5s 3410 1093 703.79745 24 72 706.00000 701.05804 0.70% 17.7 10s * 5990 1306 30 705.0000000 701.92424 0.44% 16.8 14s 6344 1259 703.23989 25 85 705.00000 702.07374 0.42% 16.7 15s Cutting planes: Gomory: 2 MIR: 3 Zero half: 13 Explored 8957 nodes (139818 simplex iterations) in 18.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 41), (4, 45), (13, 41), (14, 28), (14, 55), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 57), (24, 64), (25, 50), (28, 53), (33, 45), (33, 51), (35, 53), (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), (66, 67), (36, 54), (39, 66), (40, 73), (9, 20), (9, 47), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (59, 73), (20, 36), (26, 56)] Optimize a model with 356 rows, 2850 columns and 132319 nonzeros Presolve time: 0.09s Presolved: 356 rows, 2850 columns, 132319 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 222 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 716.0000000 694.68750 2.98% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26341 0 94 706.00000 695.26341 1.52% - 0s 0 0 695.26341 0 85 706.00000 695.26341 1.52% - 0s 0 0 695.26341 0 94 706.00000 695.26341 1.52% - 0s 0 0 695.44456 0 97 706.00000 695.44456 1.50% - 0s 0 0 695.63610 0 94 706.00000 695.63610 1.47% - 0s 0 0 695.63610 0 96 706.00000 695.63610 1.47% - 0s 0 0 695.66563 0 102 706.00000 695.66563 1.46% - 0s 0 0 695.66563 0 104 706.00000 695.66563 1.46% - 0s 0 0 695.71217 0 98 706.00000 695.71217 1.46% - 1s 0 0 695.71217 0 100 706.00000 695.71217 1.46% - 1s 0 0 695.72299 0 101 706.00000 695.72299 1.46% - 1s 0 0 695.72596 0 106 706.00000 695.72596 1.46% - 1s 0 0 695.73741 0 106 706.00000 695.73741 1.45% - 1s 0 0 695.75787 0 107 706.00000 695.75787 1.45% - 1s 0 0 695.76644 0 108 706.00000 695.76644 1.45% - 1s 0 0 695.76644 0 110 706.00000 695.76644 1.45% - 1s 0 0 695.77520 0 108 706.00000 695.77520 1.45% - 1s 0 0 695.77520 0 110 706.00000 695.77520 1.45% - 1s 0 0 695.77798 0 110 706.00000 695.77798 1.45% - 1s 0 2 695.80855 0 110 706.00000 695.80855 1.44% - 1s 1454 520 701.16483 18 92 706.00000 699.75686 0.88% 18.0 5s 4072 1246 702.81250 32 52 706.00000 701.60927 0.62% 16.6 10s 6902 1650 704.57334 28 72 706.00000 702.48276 0.50% 15.9 15s * 8167 1201 33 705.0000000 702.77174 0.32% 15.7 17s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 9813 nodes (145048 simplex iterations) in 19.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 46), (28, 53), (30, 46), (30, 49), (35, 53), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(33, 51), (33, 45), (4, 45), (42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (17, 50), (19, 51), (19, 25), (24, 64), (24, 57), (25, 50), (31, 75), (29, 75), (29, 63), (23, 65), (23, 63)] adding cut for [(32, 56), (39, 66), (39, 59), (8, 54), (10, 40), (10, 26), (11, 32), (11, 73), (12, 66), (12, 67), (15, 54), (15, 60), (40, 41), (26, 56), (59, 73), (60, 67)] Optimize a model with 359 rows, 2850 columns and 132945 nonzeros Presolve time: 0.09s Presolved: 359 rows, 2850 columns, 132945 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 245 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.33559 0 94 706.00000 695.33559 1.51% - 0s 0 0 695.33559 0 86 706.00000 695.33559 1.51% - 0s 0 0 695.33559 0 93 706.00000 695.33559 1.51% - 0s 0 0 695.47853 0 95 706.00000 695.47853 1.49% - 0s 0 0 695.61186 0 99 706.00000 695.61186 1.47% - 0s 0 0 695.61186 0 101 706.00000 695.61186 1.47% - 0s 0 0 695.64001 0 103 706.00000 695.64001 1.47% - 1s 0 0 695.64001 0 105 706.00000 695.64001 1.47% - 1s 0 0 695.67428 0 103 706.00000 695.67428 1.46% - 1s 0 0 695.67428 0 105 706.00000 695.67428 1.46% - 1s 0 0 695.68151 0 105 706.00000 695.68151 1.46% - 1s 0 0 695.68151 0 107 706.00000 695.68151 1.46% - 1s 0 0 695.68956 0 101 706.00000 695.68956 1.46% - 1s 0 0 695.69165 0 106 706.00000 695.69165 1.46% - 1s 0 0 695.71976 0 108 706.00000 695.71976 1.46% - 1s 0 0 695.71976 0 110 706.00000 695.71976 1.46% - 1s 0 0 695.77216 0 108 706.00000 695.77216 1.45% - 1s 0 0 695.77216 0 109 706.00000 695.77216 1.45% - 1s 0 0 695.80260 0 104 706.00000 695.80260 1.44% - 1s 0 0 695.80260 0 106 706.00000 695.80260 1.44% - 1s 0 0 695.80632 0 108 706.00000 695.80632 1.44% - 1s 0 0 695.80850 0 110 706.00000 695.80850 1.44% - 1s 0 0 695.81281 0 112 706.00000 695.81281 1.44% - 1s 0 0 695.81592 0 111 706.00000 695.81592 1.44% - 1s 0 0 695.82837 0 107 706.00000 695.82837 1.44% - 1s 0 0 695.82863 0 114 706.00000 695.82863 1.44% - 1s 0 0 695.83343 0 109 706.00000 695.83343 1.44% - 2s 0 0 695.83343 0 109 706.00000 695.83343 1.44% - 2s 0 2 695.83565 0 109 706.00000 695.83565 1.44% - 2s 898 458 698.90059 19 85 706.00000 698.68375 1.04% 19.9 5s * 2731 858 38 705.0000000 700.34720 0.66% 18.3 8s 3257 956 701.26263 23 71 705.00000 700.79310 0.60% 18.1 10s 5965 719 702.86885 23 81 705.00000 702.52606 0.35% 17.1 15s Cutting planes: Gomory: 3 MIR: 3 Zero half: 12 Explored 7217 nodes (116306 simplex iterations) in 16.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(11, 39), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (32, 73), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 360 rows, 2850 columns and 133725 nonzeros Presolve time: 0.09s Presolved: 360 rows, 2850 columns, 133725 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 235 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.26341 0 94 706.00000 695.26341 1.52% - 0s 0 0 695.26341 0 85 706.00000 695.26341 1.52% - 0s 0 0 695.26341 0 94 706.00000 695.26341 1.52% - 0s 0 0 695.44532 0 97 706.00000 695.44532 1.49% - 0s 0 0 695.46434 0 101 706.00000 695.46434 1.49% - 0s 0 0 695.62585 0 100 706.00000 695.62585 1.47% - 0s 0 0 695.63578 0 100 706.00000 695.63578 1.47% - 0s 0 0 695.68438 0 103 706.00000 695.68438 1.46% - 0s 0 0 695.70120 0 107 706.00000 695.70120 1.46% - 1s 0 0 695.70493 0 109 706.00000 695.70493 1.46% - 1s 0 0 695.71083 0 110 706.00000 695.71083 1.46% - 1s 0 0 695.75269 0 104 706.00000 695.75269 1.45% - 1s 0 0 695.76153 0 105 706.00000 695.76153 1.45% - 1s 0 0 695.76300 0 103 706.00000 695.76300 1.45% - 1s 0 0 695.76607 0 111 706.00000 695.76607 1.45% - 1s 0 0 695.79217 0 107 706.00000 695.79217 1.45% - 1s 0 0 695.80746 0 108 706.00000 695.80746 1.44% - 1s 0 0 695.82058 0 106 706.00000 695.82058 1.44% - 1s 0 0 695.82262 0 108 706.00000 695.82262 1.44% - 1s 0 0 695.82262 0 109 706.00000 695.82262 1.44% - 1s 0 2 695.85788 0 109 706.00000 695.85788 1.44% - 1s 1391 482 702.45898 19 75 706.00000 699.61807 0.90% 19.0 5s * 3767 890 26 705.0000000 701.69565 0.47% 16.8 9s 3972 896 703.17091 19 77 705.00000 701.88163 0.44% 16.8 10s Cutting planes: Gomory: 2 MIR: 2 Zero half: 11 Explored 6414 nodes (97849 simplex iterations) in 13.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 25), (4, 45), (10, 26), (10, 33), (11, 32), (11, 39), (12, 54), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 50), (24, 57), (25, 50), (26, 56), (32, 40), (33, 41), (37, 48), (37, 70), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (45, 51), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 361 rows, 2850 columns and 134760 nonzeros Presolve time: 0.09s Presolved: 361 rows, 2850 columns, 134760 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 227 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 717.0000000 694.68750 3.11% - 0s H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.27491 0 94 706.00000 695.27491 1.52% - 0s 0 0 695.27491 0 86 706.00000 695.27491 1.52% - 0s 0 0 695.33559 0 93 706.00000 695.33559 1.51% - 0s 0 0 695.47853 0 95 706.00000 695.47853 1.49% - 0s 0 0 695.61314 0 99 706.00000 695.61314 1.47% - 0s 0 0 695.61314 0 101 706.00000 695.61314 1.47% - 0s 0 0 695.64177 0 103 706.00000 695.64177 1.47% - 1s 0 0 695.64177 0 105 706.00000 695.64177 1.47% - 1s 0 0 695.67821 0 107 706.00000 695.67821 1.46% - 1s 0 0 695.67821 0 109 706.00000 695.67821 1.46% - 1s 0 0 695.69693 0 106 706.00000 695.69693 1.46% - 1s 0 0 695.69693 0 108 706.00000 695.69693 1.46% - 1s 0 0 695.71712 0 106 706.00000 695.71712 1.46% - 1s 0 0 695.72070 0 110 706.00000 695.72070 1.46% - 1s 0 0 695.73548 0 106 706.00000 695.73548 1.45% - 1s 0 0 695.73548 0 108 706.00000 695.73548 1.45% - 1s 0 0 695.76055 0 108 706.00000 695.76055 1.45% - 1s 0 0 695.76408 0 107 706.00000 695.76408 1.45% - 1s 0 0 695.76646 0 110 706.00000 695.76646 1.45% - 1s 0 0 695.78282 0 108 706.00000 695.78282 1.45% - 1s 0 0 695.79085 0 110 706.00000 695.79085 1.45% - 1s 0 0 695.80861 0 109 706.00000 695.80861 1.44% - 1s 0 0 695.82839 0 111 706.00000 695.82839 1.44% - 1s 0 0 695.83367 0 112 706.00000 695.83367 1.44% - 1s 0 0 695.83533 0 113 706.00000 695.83533 1.44% - 1s 0 0 695.83533 0 113 706.00000 695.83533 1.44% - 1s 0 2 695.83607 0 113 706.00000 695.83607 1.44% - 2s 1022 471 703.49472 25 76 706.00000 698.90336 1.01% 18.9 5s 3613 1225 703.74780 29 75 706.00000 701.03555 0.70% 17.0 10s H 5963 1386 705.0000000 701.75083 0.46% 16.4 14s 6342 1363 702.72535 33 63 705.00000 701.93162 0.44% 16.3 15s 9366 95 703.92938 33 71 705.00000 703.87836 0.16% 15.2 20s Cutting planes: Gomory: 3 MIR: 3 Zero half: 13 Explored 9463 nodes (142857 simplex iterations) in 20.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(9, 36), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (36, 54), (39, 66), (50, 57), (60, 67)] adding cut for [(6, 38), (6, 49), (29, 75), (29, 62), (21, 38), (21, 71), (22, 62), (22, 48), (31, 75), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] Optimize a model with 363 rows, 2850 columns and 135127 nonzeros Presolve time: 0.09s Presolved: 363 rows, 2850 columns, 135127 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 233 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.27491 0 94 706.00000 695.27491 1.52% - 0s 0 0 695.27491 0 86 706.00000 695.27491 1.52% - 0s 0 0 695.29409 0 94 706.00000 695.29409 1.52% - 0s 0 0 695.37549 0 96 706.00000 695.37549 1.50% - 0s 0 0 695.57128 0 102 706.00000 695.57128 1.48% - 0s 0 0 695.58852 0 105 706.00000 695.58852 1.47% - 0s 0 0 695.58852 0 107 706.00000 695.58852 1.47% - 0s 0 0 695.64084 0 100 706.00000 695.64084 1.47% - 1s 0 0 695.64084 0 102 706.00000 695.64084 1.47% - 1s 0 0 695.64637 0 107 706.00000 695.64637 1.47% - 1s 0 0 695.64986 0 109 706.00000 695.64986 1.47% - 1s 0 0 695.66541 0 105 706.00000 695.66541 1.46% - 1s 0 0 695.66876 0 108 706.00000 695.66876 1.46% - 1s 0 0 695.69972 0 101 706.00000 695.69972 1.46% - 1s 0 0 695.70587 0 106 706.00000 695.70587 1.46% - 1s 0 0 695.71109 0 108 706.00000 695.71109 1.46% - 1s 0 0 695.71517 0 108 706.00000 695.71517 1.46% - 1s 0 0 695.71595 0 109 706.00000 695.71595 1.46% - 1s 0 0 695.72895 0 103 706.00000 695.72895 1.45% - 1s 0 0 695.73122 0 111 706.00000 695.73122 1.45% - 1s 0 0 695.74817 0 108 706.00000 695.74817 1.45% - 1s 0 0 695.75009 0 111 706.00000 695.75009 1.45% - 1s 0 0 695.76453 0 107 706.00000 695.76453 1.45% - 1s 0 0 695.76453 0 110 706.00000 695.76453 1.45% - 1s 0 0 695.76626 0 106 706.00000 695.76626 1.45% - 1s 0 0 695.76626 0 110 706.00000 695.76626 1.45% - 1s 0 0 695.76626 0 110 706.00000 695.76626 1.45% - 1s 0 2 695.77059 0 110 706.00000 695.77059 1.45% - 2s 1070 488 cutoff 31 706.00000 699.34177 0.94% 19.2 5s 3670 1104 704.87500 25 61 706.00000 701.19481 0.68% 17.3 10s 6369 1578 704.22581 30 52 706.00000 702.04478 0.56% 16.6 15s * 9075 1321 25 705.0000000 702.60870 0.34% 16.1 19s 9287 1242 703.17351 25 79 705.00000 702.72361 0.32% 16.1 20s Cutting planes: Gomory: 2 MIR: 3 Zero half: 9 Explored 11224 nodes (169155 simplex iterations) in 22.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.050000000000e+02, best bound 7.050000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (8, 36), (10, 33), (10, 40), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65), (70, 72)] adding cut for [(66, 67), (39, 66), (9, 54), (9, 47), (12, 67), (12, 60), (13, 41), (13, 73), (28, 46), (28, 53), (15, 54), (15, 60), (11, 39), (11, 59), (47, 53), (59, 73), (30, 46), (30, 49), (31, 49)] Optimize a model with 365 rows, 2850 columns and 136097 nonzeros Presolve time: 0.09s Presolved: 365 rows, 2850 columns, 136097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 245 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 706.0000000 694.68750 1.60% - 0s 0 0 695.27491 0 94 706.00000 695.27491 1.52% - 0s 0 0 695.27491 0 86 706.00000 695.27491 1.52% - 0s 0 0 695.29409 0 94 706.00000 695.29409 1.52% - 0s 0 0 695.37549 0 96 706.00000 695.37549 1.50% - 0s 0 0 695.57128 0 102 706.00000 695.57128 1.48% - 0s 0 0 695.58852 0 105 706.00000 695.58852 1.47% - 0s 0 0 695.58852 0 107 706.00000 695.58852 1.47% - 0s 0 0 695.64084 0 100 706.00000 695.64084 1.47% - 0s 0 0 695.64084 0 102 706.00000 695.64084 1.47% - 1s 0 0 695.64637 0 107 706.00000 695.64637 1.47% - 1s 0 0 695.64986 0 109 706.00000 695.64986 1.47% - 1s 0 0 695.66541 0 105 706.00000 695.66541 1.46% - 1s 0 0 695.66876 0 108 706.00000 695.66876 1.46% - 1s 0 0 695.69972 0 101 706.00000 695.69972 1.46% - 1s 0 0 695.70587 0 106 706.00000 695.70587 1.46% - 1s 0 0 695.71109 0 108 706.00000 695.71109 1.46% - 1s 0 0 695.71517 0 108 706.00000 695.71517 1.46% - 1s 0 0 695.71595 0 109 706.00000 695.71595 1.46% - 1s 0 0 695.72895 0 104 706.00000 695.72895 1.45% - 1s 0 0 695.74001 0 111 706.00000 695.74001 1.45% - 1s 0 0 695.74065 0 111 706.00000 695.74065 1.45% - 1s 0 0 695.74645 0 109 706.00000 695.74645 1.45% - 1s 0 0 695.74645 0 110 706.00000 695.74645 1.45% - 1s 0 0 695.75396 0 112 706.00000 695.75396 1.45% - 1s 0 0 695.76641 0 109 706.00000 695.76641 1.45% - 1s 0 0 695.76641 0 111 706.00000 695.76641 1.45% - 1s 0 0 695.76682 0 110 706.00000 695.76682 1.45% - 1s 0 0 695.76682 0 112 706.00000 695.76682 1.45% - 2s 0 0 695.76682 0 112 706.00000 695.76682 1.45% - 2s 0 2 695.77850 0 111 706.00000 695.77850 1.45% - 2s 974 492 701.41482 18 77 706.00000 698.41071 1.07% 18.2 5s 3621 1248 702.66667 22 55 706.00000 701.05614 0.70% 17.2 10s 6278 1726 702.76923 18 75 706.00000 702.02134 0.56% 16.8 15s 9124 1794 704.39652 25 72 706.00000 702.68689 0.47% 16.3 20s 12371 1413 704.11538 24 68 706.00000 703.41667 0.37% 15.7 25s Cutting planes: Gomory: 2 MIR: 3 Zero half: 12 Explored 15392 nodes (228687 simplex iterations) in 28.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(9, 36), (9, 47), (14, 28), (14, 55), (16, 38), (16, 58), (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), (28, 58), (33, 45), (33, 51), (37, 48), (37, 70), (41, 45), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (8, 54), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (13, 59), (15, 54), (15, 60), (40, 73), (26, 56), (59, 73)] Optimize a model with 367 rows, 2850 columns and 136761 nonzeros Presolve time: 0.09s Presolved: 367 rows, 2850 columns, 136761 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 238 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 716.0000000 694.68750 2.98% - 0s H 0 0 712.0000000 694.68750 2.43% - 0s 0 0 695.33559 0 93 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 85 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 93 712.00000 695.33559 2.34% - 0s 0 0 695.47853 0 95 712.00000 695.47853 2.32% - 0s 0 0 695.68026 0 98 712.00000 695.68026 2.29% - 1s 0 0 695.68026 0 100 712.00000 695.68026 2.29% - 1s 0 0 695.72843 0 105 712.00000 695.72843 2.29% - 1s 0 0 695.72843 0 107 712.00000 695.72843 2.29% - 1s 0 0 695.77373 0 95 712.00000 695.77373 2.28% - 1s 0 0 695.77373 0 97 712.00000 695.77373 2.28% - 1s 0 0 695.79040 0 100 712.00000 695.79040 2.28% - 1s 0 0 695.79201 0 104 712.00000 695.79201 2.28% - 1s 0 0 695.80903 0 97 712.00000 695.80903 2.27% - 1s 0 0 695.80903 0 99 712.00000 695.80903 2.27% - 1s 0 0 695.81765 0 101 712.00000 695.81765 2.27% - 1s 0 0 695.81765 0 103 712.00000 695.81765 2.27% - 1s 0 0 695.82970 0 107 712.00000 695.82970 2.27% - 1s 0 0 695.82970 0 109 712.00000 695.82970 2.27% - 1s 0 0 695.83290 0 109 712.00000 695.83290 2.27% - 2s 0 0 695.83377 0 110 712.00000 695.83377 2.27% - 2s 0 0 695.85157 0 104 712.00000 695.85157 2.27% - 2s 0 0 695.85157 0 106 712.00000 695.85157 2.27% - 2s 0 0 695.86378 0 109 712.00000 695.86378 2.27% - 2s 0 0 695.86596 0 109 712.00000 695.86596 2.27% - 2s 0 0 695.87717 0 103 712.00000 695.87717 2.26% - 2s 0 0 695.88310 0 108 712.00000 695.88310 2.26% - 2s 0 0 695.88940 0 110 712.00000 695.88940 2.26% - 2s 0 0 695.89235 0 108 712.00000 695.89235 2.26% - 2s 0 0 695.89697 0 111 712.00000 695.89697 2.26% - 2s 0 0 695.89772 0 111 712.00000 695.89772 2.26% - 2s 0 0 695.89851 0 111 712.00000 695.89851 2.26% - 2s 0 2 695.89925 0 111 712.00000 695.89925 2.26% - 3s H 54 54 708.0000000 695.91030 1.71% 29.0 3s * 293 193 47 707.0000000 696.52428 1.48% 19.3 4s H 600 331 706.0000000 697.60651 1.19% 19.5 5s 1867 519 702.27957 25 86 706.00000 699.89394 0.86% 18.3 10s 4424 1063 703.85714 26 75 706.00000 701.35000 0.66% 17.2 15s 7154 1206 703.63158 23 83 706.00000 702.13307 0.55% 16.6 20s 10600 950 704.42647 26 75 706.00000 702.95027 0.43% 16.0 25s Cutting planes: Gomory: 11 MIR: 1 Zero half: 1 Explored 13535 nodes (208526 simplex iterations) in 29.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 45), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (14, 58), (14, 55), (61, 71), (61, 72), (8, 20), (20, 55), (21, 71), (21, 38), (22, 48), (22, 62), (6, 16), (6, 38), (29, 75), (29, 63), (62, 75)] adding cut for [(35, 47), (36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 59), (13, 41), (15, 54), (15, 60), (60, 67)] Optimize a model with 370 rows, 2850 columns and 137376 nonzeros Presolve time: 0.09s Presolved: 370 rows, 2850 columns, 137376 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 245 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.68750 2.43% - 0s 0 0 695.29409 0 94 712.00000 695.29409 2.35% - 0s 0 0 695.29409 0 85 712.00000 695.29409 2.35% - 0s 0 0 695.29409 0 94 712.00000 695.29409 2.35% - 0s 0 0 695.37549 0 96 712.00000 695.37549 2.33% - 1s 0 0 695.60370 0 99 712.00000 695.60370 2.30% - 1s 0 0 695.60370 0 101 712.00000 695.60370 2.30% - 1s 0 0 695.63102 0 101 712.00000 695.63102 2.30% - 1s 0 0 695.63102 0 103 712.00000 695.63102 2.30% - 1s 0 0 695.64898 0 103 712.00000 695.64898 2.30% - 1s 0 0 695.65242 0 106 712.00000 695.65242 2.30% - 1s 0 0 695.69529 0 102 712.00000 695.69529 2.29% - 1s 0 0 695.70485 0 106 712.00000 695.70485 2.29% - 1s 0 0 695.71475 0 108 712.00000 695.71475 2.29% - 1s 0 0 695.72824 0 109 712.00000 695.72824 2.29% - 1s 0 0 695.73349 0 105 712.00000 695.73349 2.28% - 1s 0 0 695.74524 0 108 712.00000 695.74524 2.28% - 1s 0 0 695.75470 0 110 712.00000 695.75470 2.28% - 1s 0 0 695.75846 0 108 712.00000 695.75846 2.28% - 1s 0 0 695.75920 0 111 712.00000 695.75920 2.28% - 1s 0 0 695.75920 0 110 712.00000 695.75920 2.28% - 2s 0 2 695.75920 0 110 712.00000 695.75920 2.28% - 2s * 100 88 60 711.0000000 696.46634 2.04% 19.0 2s * 232 175 58 710.0000000 697.05249 1.82% 16.8 2s H 600 300 707.0000000 697.62147 1.33% 17.5 3s 613 309 700.10659 11 99 707.00000 697.62147 1.33% 17.1 5s 2531 900 703.23947 20 69 707.00000 700.61037 0.90% 18.2 10s H 4315 1291 706.0000000 701.48199 0.64% 17.7 13s 5277 1403 704.93061 21 78 706.00000 701.86837 0.59% 17.5 15s 8108 1328 703.59458 27 67 706.00000 702.76817 0.46% 17.0 20s 11447 498 704.75215 30 76 706.00000 704.10305 0.27% 16.2 25s Cutting planes: Gomory: 4 MIR: 3 Zero half: 5 Explored 12165 nodes (191750 simplex iterations) in 25.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 38), (6, 49), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (31, 49), (32, 56), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 371 rows, 2850 columns and 138006 nonzeros Presolve time: 0.09s Presolved: 371 rows, 2850 columns, 138006 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 238 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 710.0000000 694.68750 2.16% - 0s 0 0 695.33559 0 93 710.00000 695.33559 2.07% - 0s 0 0 695.33559 0 85 710.00000 695.33559 2.07% - 0s 0 0 695.33559 0 93 710.00000 695.33559 2.07% - 0s 0 0 695.47853 0 95 710.00000 695.47853 2.05% - 0s 0 0 695.61186 0 99 710.00000 695.61186 2.03% - 0s 0 0 695.61186 0 101 710.00000 695.61186 2.03% - 1s 0 0 695.64001 0 103 710.00000 695.64001 2.02% - 1s 0 0 695.64001 0 105 710.00000 695.64001 2.02% - 1s 0 0 695.67428 0 103 710.00000 695.67428 2.02% - 1s 0 0 695.67428 0 105 710.00000 695.67428 2.02% - 1s 0 0 695.68151 0 105 710.00000 695.68151 2.02% - 1s 0 0 695.68151 0 107 710.00000 695.68151 2.02% - 1s 0 0 695.68956 0 101 710.00000 695.68956 2.02% - 1s 0 0 695.69165 0 106 710.00000 695.69165 2.02% - 1s 0 0 695.72195 0 107 710.00000 695.72195 2.01% - 1s 0 0 695.72195 0 109 710.00000 695.72195 2.01% - 1s 0 0 695.72922 0 109 710.00000 695.72922 2.01% - 1s 0 0 695.73518 0 111 710.00000 695.73518 2.01% - 1s 0 0 695.74711 0 113 710.00000 695.74711 2.01% - 1s 0 0 695.74970 0 111 710.00000 695.74970 2.01% - 1s 0 0 695.75537 0 110 710.00000 695.75537 2.01% - 1s 0 0 695.75899 0 109 710.00000 695.75899 2.01% - 1s 0 0 695.76333 0 110 710.00000 695.76333 2.01% - 1s 0 0 695.78481 0 110 710.00000 695.78481 2.00% - 2s 0 0 695.81468 0 114 710.00000 695.81468 2.00% - 2s 0 0 695.82273 0 112 710.00000 695.82273 2.00% - 2s 0 0 695.83435 0 113 710.00000 695.83435 2.00% - 2s 0 0 695.84484 0 112 710.00000 695.84484 1.99% - 2s 0 0 695.85346 0 112 710.00000 695.85346 1.99% - 2s 0 0 695.87302 0 110 710.00000 695.87302 1.99% - 2s 0 0 695.87414 0 113 710.00000 695.87414 1.99% - 2s 0 0 695.87764 0 113 710.00000 695.87764 1.99% - 2s 0 2 695.87943 0 113 710.00000 695.87943 1.99% - 2s H 54 54 709.0000000 695.89996 1.85% 24.4 3s * 257 194 42 708.0000000 696.68974 1.60% 17.9 3s 603 381 701.62400 23 86 708.00000 697.37551 1.50% 18.6 5s * 784 426 36 707.0000000 697.77202 1.31% 20.3 7s * 945 437 29 706.0000000 698.17859 1.11% 20.7 7s 1827 580 703.61320 20 70 706.00000 700.05286 0.84% 19.6 10s 4134 1228 702.95394 21 71 706.00000 701.57500 0.63% 17.9 15s 6629 1547 704.01315 28 77 706.00000 702.38714 0.51% 17.1 20s 9241 1437 703.65188 24 74 706.00000 703.00000 0.42% 16.6 25s 12344 599 704.75714 23 89 706.00000 703.98884 0.28% 16.0 30s Cutting planes: Gomory: 10 MIR: 2 Zero half: 2 Explored 13231 nodes (206462 simplex iterations) in 31.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 47), (9, 54), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 52), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 58), (6, 30), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 49), (31, 49), (70, 72), (61, 71), (61, 72), (30, 46), (37, 48), (37, 70)] Optimize a model with 373 rows, 2850 columns and 138477 nonzeros Presolve time: 0.09s Presolved: 373 rows, 2850 columns, 138477 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 238 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 85 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.68750 2.43% - 0s 0 0 695.33559 0 93 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 85 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 93 712.00000 695.33559 2.34% - 0s 0 0 695.47853 0 95 712.00000 695.47853 2.32% - 0s 0 0 695.61186 0 99 712.00000 695.61186 2.30% - 1s 0 0 695.68026 0 100 712.00000 695.68026 2.29% - 1s 0 0 695.72843 0 107 712.00000 695.72843 2.29% - 1s 0 0 695.77373 0 95 712.00000 695.77373 2.28% - 1s 0 0 695.77373 0 97 712.00000 695.77373 2.28% - 1s 0 0 695.79040 0 100 712.00000 695.79040 2.28% - 1s 0 0 695.79201 0 104 712.00000 695.79201 2.28% - 1s 0 0 695.80903 0 97 712.00000 695.80903 2.27% - 1s 0 0 695.80903 0 99 712.00000 695.80903 2.27% - 1s 0 0 695.81765 0 101 712.00000 695.81765 2.27% - 1s 0 0 695.81765 0 103 712.00000 695.81765 2.27% - 1s 0 0 695.82970 0 107 712.00000 695.82970 2.27% - 1s 0 0 695.82970 0 109 712.00000 695.82970 2.27% - 1s 0 0 695.83290 0 109 712.00000 695.83290 2.27% - 1s 0 0 695.83377 0 110 712.00000 695.83377 2.27% - 1s 0 0 695.85157 0 104 712.00000 695.85157 2.27% - 1s 0 0 695.85157 0 106 712.00000 695.85157 2.27% - 2s 0 0 695.86378 0 109 712.00000 695.86378 2.27% - 2s 0 0 695.86596 0 109 712.00000 695.86596 2.27% - 2s 0 0 695.87717 0 103 712.00000 695.87717 2.26% - 2s 0 0 695.88204 0 104 712.00000 695.88204 2.26% - 2s 0 0 695.88769 0 107 712.00000 695.88769 2.26% - 2s 0 0 695.89608 0 105 712.00000 695.89608 2.26% - 2s 0 0 695.89694 0 110 712.00000 695.89694 2.26% - 2s 0 0 695.89694 0 109 712.00000 695.89694 2.26% - 2s 0 0 695.89738 0 112 712.00000 695.89738 2.26% - 2s 0 2 695.89742 0 112 712.00000 695.89742 2.26% - 2s H 54 54 711.0000000 695.90242 2.12% 24.1 3s * 382 188 25 706.0000000 696.67396 1.32% 19.7 4s 601 287 698.21139 4 93 706.00000 697.43362 1.21% 20.4 5s 2021 674 704.18718 29 74 706.00000 700.32813 0.80% 19.6 10s 4686 1291 703.98221 25 68 706.00000 701.71429 0.61% 18.0 15s 7492 1549 cutoff 28 706.00000 702.42977 0.51% 17.3 20s 10665 1142 704.58228 27 69 706.00000 703.32500 0.38% 16.7 25s Cutting planes: Gomory: 7 MIR: 2 Zero half: 6 Mod-K: 1 Explored 13011 nodes (207794 simplex iterations) in 28.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (8, 20), (10, 33), (10, 40), (14, 28), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (32, 73), (33, 45), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (53, 55), (61, 71), (61, 72), (70, 72)] adding cut for [(35, 47), (36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 59), (15, 54), (15, 60), (60, 67)] Optimize a model with 375 rows, 2850 columns and 139429 nonzeros Presolve time: 0.09s Presolved: 375 rows, 2850 columns, 139429 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.946875e+02, 259 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.68750 0 86 2820.00000 694.68750 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.68750 2.43% - 0s 0 0 695.33559 0 94 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 86 712.00000 695.33559 2.34% - 0s 0 0 695.33559 0 93 712.00000 695.33559 2.34% - 0s 0 0 695.47853 0 95 712.00000 695.47853 2.32% - 1s 0 0 695.61186 0 100 712.00000 695.61186 2.30% - 1s 0 0 695.61186 0 102 712.00000 695.61186 2.30% - 1s 0 0 695.64001 0 103 712.00000 695.64001 2.30% - 1s 0 0 695.64001 0 105 712.00000 695.64001 2.30% - 1s 0 0 695.66794 0 101 712.00000 695.66794 2.29% - 1s 0 0 695.66794 0 103 712.00000 695.66794 2.29% - 1s 0 0 695.68431 0 105 712.00000 695.68431 2.29% - 1s 0 0 695.68658 0 108 712.00000 695.68658 2.29% - 1s 0 0 695.68866 0 108 712.00000 695.68866 2.29% - 1s 0 0 695.73221 0 102 712.00000 695.73221 2.28% - 1s 0 0 695.73221 0 104 712.00000 695.73221 2.28% - 1s 0 0 695.73888 0 105 712.00000 695.73888 2.28% - 1s 0 0 695.73888 0 107 712.00000 695.73888 2.28% - 1s 0 0 695.75225 0 103 712.00000 695.75225 2.28% - 2s 0 0 695.75225 0 105 712.00000 695.75225 2.28% - 2s 0 0 695.75812 0 105 712.00000 695.75812 2.28% - 2s 0 0 695.75830 0 107 712.00000 695.75830 2.28% - 2s 0 0 695.76006 0 109 712.00000 695.76006 2.28% - 2s 0 0 695.76006 0 109 712.00000 695.76006 2.28% - 2s 0 2 695.76112 0 109 712.00000 695.76112 2.28% - 2s H 54 52 706.0000000 695.79517 1.45% 25.0 3s 606 379 702.52688 18 104 706.00000 697.83333 1.16% 15.6 5s 2557 894 704.23645 21 80 706.00000 700.85455 0.73% 17.5 10s 5027 1555 703.22222 24 76 706.00000 701.82629 0.59% 16.8 15s 7488 1858 704.37614 19 82 706.00000 702.45455 0.50% 16.3 20s 10188 1786 cutoff 22 706.00000 702.94483 0.43% 15.9 25s 13554 1054 cutoff 25 706.00000 703.74427 0.32% 15.6 30s Cutting planes: Gomory: 8 MIR: 2 Zero half: 5 Explored 15185 nodes (230068 simplex iterations) in 32.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 50), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (54, 59), (59, 73), (66, 67)] adding cut for [(16, 38), (16, 58), (9, 36), (6, 48), (6, 30), (70, 72), (14, 55), (14, 58), (20, 36), (20, 55), (21, 71), (21, 38), (8, 9), (31, 49), (61, 71), (61, 72), (30, 49), (37, 70), (37, 48)] adding cut for [(2, 64), (2, 74), (7, 34), (43, 65), (43, 44), (34, 74), (29, 62), (29, 63), (3, 75), (22, 75), (22, 62), (23, 65), (23, 63), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 378 rows, 2850 columns and 140048 nonzeros Presolve time: 0.10s Presolved: 378 rows, 2850 columns, 140048 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 249 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 91 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.91182 2.81% - 0s 0 0 695.72039 0 94 715.00000 695.72039 2.70% - 0s 0 0 695.72039 0 89 715.00000 695.72039 2.70% - 1s 0 0 695.72045 0 93 715.00000 695.72045 2.70% - 1s 0 0 695.77718 0 96 715.00000 695.77718 2.69% - 1s 0 0 695.79277 0 99 715.00000 695.79277 2.69% - 1s 0 0 695.79277 0 101 715.00000 695.79277 2.69% - 1s 0 0 695.84616 0 100 715.00000 695.84616 2.68% - 1s 0 0 695.85085 0 101 715.00000 695.85085 2.68% - 1s 0 0 696.06507 0 96 715.00000 696.06507 2.65% - 1s 0 0 696.07549 0 102 715.00000 696.07549 2.65% - 1s 0 0 696.08885 0 99 715.00000 696.08885 2.64% - 1s 0 0 696.08901 0 101 715.00000 696.08901 2.64% - 1s 0 0 696.12464 0 99 715.00000 696.12464 2.64% - 1s 0 0 696.12464 0 100 715.00000 696.12464 2.64% - 1s 0 0 696.14119 0 104 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 108 715.00000 696.14119 2.64% - 2s 0 2 696.14132 0 108 715.00000 696.14132 2.64% - 2s * 266 188 42 711.0000000 697.00587 1.97% 17.5 3s * 267 163 42 710.0000000 697.00587 1.83% 17.5 3s * 309 119 27 706.0000000 697.55385 1.20% 18.3 3s 675 279 703.23518 25 73 706.00000 698.64553 1.04% 19.9 5s 3194 852 704.40665 23 75 706.00000 701.75225 0.60% 17.9 10s 5966 945 704.83333 25 51 706.00000 702.94253 0.43% 16.7 15s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 8902 nodes (138099 simplex iterations) in 19.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 65), (70, 72)] Optimize a model with 379 rows, 2850 columns and 141083 nonzeros Presolve time: 0.10s Presolved: 379 rows, 2850 columns, 141083 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 249 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 91 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 717.0000000 694.91182 3.08% - 0s H 0 0 715.0000000 694.91182 2.81% - 0s 0 0 695.72039 0 94 715.00000 695.72039 2.70% - 0s 0 0 695.72039 0 89 715.00000 695.72039 2.70% - 1s 0 0 695.72045 0 93 715.00000 695.72045 2.70% - 1s 0 0 695.77718 0 96 715.00000 695.77718 2.69% - 1s 0 0 695.79277 0 99 715.00000 695.79277 2.69% - 1s 0 0 695.79277 0 101 715.00000 695.79277 2.69% - 1s 0 0 695.84616 0 100 715.00000 695.84616 2.68% - 1s 0 0 695.85085 0 101 715.00000 695.85085 2.68% - 1s 0 0 696.06507 0 96 715.00000 696.06507 2.65% - 1s 0 0 696.07549 0 102 715.00000 696.07549 2.65% - 1s 0 0 696.08885 0 99 715.00000 696.08885 2.64% - 1s 0 0 696.08901 0 101 715.00000 696.08901 2.64% - 1s 0 0 696.12464 0 99 715.00000 696.12464 2.64% - 1s 0 0 696.12464 0 100 715.00000 696.12464 2.64% - 1s 0 0 696.14119 0 104 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 108 715.00000 696.14119 2.64% - 2s 0 2 696.14132 0 108 715.00000 696.14132 2.64% - 2s * 104 98 70 711.0000000 696.51723 2.04% 19.5 2s H 113 80 709.0000000 696.52658 1.76% 19.7 3s * 379 219 19 707.0000000 697.92369 1.28% 18.8 3s 609 322 704.37931 19 104 707.00000 698.27517 1.23% 17.2 5s * 1038 404 30 706.0000000 699.07692 0.98% 20.1 6s 2520 706 702.72581 26 79 706.00000 701.19176 0.68% 18.3 10s 5143 1178 704.74269 29 58 706.00000 702.35466 0.52% 16.9 15s 7990 1139 704.72245 25 77 706.00000 703.15079 0.40% 16.2 20s Cutting planes: Gomory: 2 MIR: 1 Zero half: 6 Mod-K: 2 Explored 11187 nodes (171371 simplex iterations) in 24.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (17, 34), (17, 52), (39, 66), (11, 32), (11, 39), (12, 66), (12, 67), (34, 64), (15, 54), (15, 60), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (9, 20), (14, 55), (14, 58), (16, 58), (8, 36), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] adding cut for [(2, 44), (2, 74), (3, 63), (42, 43), (42, 44), (43, 65), (29, 62), (22, 75), (22, 62), (23, 65), (23, 29), (31, 75), (63, 74)] Optimize a model with 382 rows, 2850 columns and 141574 nonzeros Presolve time: 0.10s Presolved: 382 rows, 2850 columns, 141574 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 249 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 90 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.91182 2.81% - 0s 0 0 695.72039 0 94 715.00000 695.72039 2.70% - 0s 0 0 695.72039 0 89 715.00000 695.72039 2.70% - 0s 0 0 695.72045 0 93 715.00000 695.72045 2.70% - 1s 0 0 695.77718 0 96 715.00000 695.77718 2.69% - 1s 0 0 695.79277 0 99 715.00000 695.79277 2.69% - 1s 0 0 695.79277 0 101 715.00000 695.79277 2.69% - 1s 0 0 695.84616 0 100 715.00000 695.84616 2.68% - 1s 0 0 695.85085 0 101 715.00000 695.85085 2.68% - 1s 0 0 696.06507 0 96 715.00000 696.06507 2.65% - 1s 0 0 696.07549 0 102 715.00000 696.07549 2.65% - 1s 0 0 696.08885 0 99 715.00000 696.08885 2.64% - 1s 0 0 696.08901 0 101 715.00000 696.08901 2.64% - 1s 0 0 696.12464 0 99 715.00000 696.12464 2.64% - 1s 0 0 696.12464 0 100 715.00000 696.12464 2.64% - 1s 0 0 696.14119 0 104 715.00000 696.14119 2.64% - 1s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 1s 0 0 696.14119 0 106 715.00000 696.14119 2.64% - 2s 0 0 696.14119 0 108 715.00000 696.14119 2.64% - 2s 0 2 696.14132 0 108 715.00000 696.14132 2.64% - 2s * 343 150 54 707.0000000 697.55385 1.34% 17.7 3s 610 281 704.03333 11 100 707.00000 698.56021 1.19% 17.6 5s * 1186 390 36 706.0000000 699.60918 0.91% 19.5 6s 2736 756 704.44608 20 68 706.00000 701.49233 0.64% 18.4 10s 5445 1054 704.95908 19 66 706.00000 702.64620 0.48% 16.8 15s 8556 677 704.70000 26 66 706.00000 703.81193 0.31% 15.7 20s Cutting planes: Gomory: 8 MIR: 1 Zero half: 4 Explored 9707 nodes (146721 simplex iterations) in 21.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 24), (17, 50), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (37, 70), (37, 72), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 64), (2, 74), (34, 64), (48, 49), (22, 75), (22, 48), (28, 46), (28, 53), (29, 75), (29, 63), (30, 46), (30, 49), (63, 74)] Optimize a model with 384 rows, 2850 columns and 142611 nonzeros Presolve time: 0.10s Presolved: 384 rows, 2850 columns, 142611 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 249 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 91 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.91182 2.40% - 0s 0 0 695.72039 0 94 712.00000 695.72039 2.29% - 0s 0 0 695.72039 0 90 712.00000 695.72039 2.29% - 0s 0 0 695.72039 0 94 712.00000 695.72039 2.29% - 1s 0 0 695.77718 0 96 712.00000 695.77718 2.28% - 1s 0 0 695.79277 0 99 712.00000 695.79277 2.28% - 1s 0 0 695.79277 0 101 712.00000 695.79277 2.28% - 1s 0 0 695.84616 0 100 712.00000 695.84616 2.27% - 1s 0 0 695.85085 0 101 712.00000 695.85085 2.27% - 1s 0 0 696.06507 0 96 712.00000 696.06507 2.24% - 1s 0 0 696.07549 0 102 712.00000 696.07549 2.24% - 1s 0 0 696.08885 0 101 712.00000 696.08885 2.23% - 1s 0 0 696.09959 0 101 712.00000 696.09959 2.23% - 1s 0 0 696.12982 0 96 712.00000 696.12982 2.23% - 1s 0 0 696.15213 0 103 712.00000 696.15213 2.23% - 1s 0 0 696.15213 0 105 712.00000 696.15213 2.23% - 1s 0 0 696.16436 0 99 712.00000 696.16436 2.22% - 1s 0 0 696.16436 0 101 712.00000 696.16436 2.22% - 1s 0 0 696.16680 0 100 712.00000 696.16680 2.22% - 1s 0 0 696.16680 0 102 712.00000 696.16680 2.22% - 2s 0 2 696.16814 0 102 712.00000 696.16814 2.22% - 2s H 62 62 708.0000000 696.19564 1.67% 22.2 2s 611 410 705.42920 24 105 708.00000 698.59302 1.33% 17.3 5s * 1354 578 41 707.0000000 699.74205 1.03% 20.1 7s 2556 931 704.87477 27 80 707.00000 701.03112 0.84% 18.9 10s * 3632 1089 34 706.0000000 701.68182 0.61% 18.2 12s 4985 1257 704.71429 23 58 706.00000 702.23211 0.53% 17.7 15s 7516 1274 704.60876 26 73 706.00000 703.00741 0.42% 17.1 20s 10420 436 cutoff 21 706.00000 704.28190 0.24% 16.2 25s Cutting planes: Gomory: 6 MIR: 1 Zero half: 6 Explored 10964 nodes (172990 simplex iterations) in 25.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 41), (4, 45), (10, 33), (10, 40), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (42, 57), (42, 65), (43, 44), (43, 65)] adding cut for [(3, 31), (3, 34), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (29, 62), (29, 75), (30, 46), (30, 49), (34, 74), (37, 48), (37, 70), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(35, 47), (36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (15, 54), (15, 60), (59, 73), (60, 67)] Optimize a model with 387 rows, 2850 columns and 143178 nonzeros Presolve time: 0.10s Presolved: 387 rows, 2850 columns, 143178 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 231 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 89 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 708.0000000 694.91182 1.85% - 0s 0 0 695.72045 0 93 708.00000 695.72045 1.73% - 0s 0 0 695.72045 0 90 708.00000 695.72045 1.73% - 0s 0 0 695.72045 0 93 708.00000 695.72045 1.73% - 0s 0 0 695.77718 0 96 708.00000 695.77718 1.73% - 0s 0 0 695.79277 0 99 708.00000 695.79277 1.72% - 0s 0 0 695.79277 0 101 708.00000 695.79277 1.72% - 1s 0 0 695.84616 0 100 708.00000 695.84616 1.72% - 1s 0 0 695.85085 0 101 708.00000 695.85085 1.72% - 1s 0 0 696.06507 0 96 708.00000 696.06507 1.69% - 1s 0 0 696.07549 0 102 708.00000 696.07549 1.68% - 1s 0 0 696.08365 0 99 708.00000 696.08365 1.68% - 1s 0 0 696.10545 0 98 708.00000 696.10545 1.68% - 1s 0 0 696.10545 0 100 708.00000 696.10545 1.68% - 1s 0 0 696.11883 0 101 708.00000 696.11883 1.68% - 1s 0 0 696.12300 0 108 708.00000 696.12300 1.68% - 1s 0 0 696.13616 0 107 708.00000 696.13616 1.68% - 1s 0 0 696.14041 0 106 708.00000 696.14041 1.68% - 1s 0 0 696.14041 0 108 708.00000 696.14041 1.68% - 1s 0 0 696.14332 0 104 708.00000 696.14332 1.67% - 1s 0 0 696.14351 0 107 708.00000 696.14351 1.67% - 1s 0 0 696.14351 0 107 708.00000 696.14351 1.67% - 1s 0 2 696.15505 0 107 708.00000 696.15505 1.67% - 2s * 322 212 13 707.0000000 698.16478 1.25% 19.0 2s 825 449 702.89474 32 61 707.00000 699.06711 1.12% 19.8 5s 3346 1269 702.78965 24 77 707.00000 701.59459 0.76% 17.0 10s * 4251 1371 36 706.0000000 701.86139 0.59% 16.6 11s 5997 1507 703.27923 24 89 706.00000 702.55219 0.49% 16.2 15s 8735 1243 704.51786 26 65 706.00000 703.42857 0.36% 15.7 20s Cutting planes: Gomory: 2 MIR: 1 Zero half: 14 Explored 11059 nodes (163500 simplex iterations) in 23.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (26, 32), (26, 56), (30, 46), (33, 51), (37, 48), (37, 70), (39, 66), (40, 73), (48, 49), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(4, 45), (4, 25), (41, 45), (42, 44), (42, 57), (43, 65), (43, 44), (22, 75), (22, 62), (24, 50), (24, 57), (25, 50), (31, 75), (29, 62), (29, 63), (23, 65), (23, 63)] Optimize a model with 389 rows, 2850 columns and 143926 nonzeros Presolve time: 0.10s Presolved: 389 rows, 2850 columns, 143926 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 90 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 712.0000000 694.91182 2.40% - 0s 0 0 695.72039 0 94 712.00000 695.72039 2.29% - 0s 0 0 695.72039 0 89 712.00000 695.72039 2.29% - 0s 0 0 695.72045 0 93 712.00000 695.72045 2.29% - 1s 0 0 695.77718 0 96 712.00000 695.77718 2.28% - 1s 0 0 695.79277 0 99 712.00000 695.79277 2.28% - 1s 0 0 695.79277 0 101 712.00000 695.79277 2.28% - 1s 0 0 695.84616 0 100 712.00000 695.84616 2.27% - 1s 0 0 695.85085 0 101 712.00000 695.85085 2.27% - 1s 0 0 696.06507 0 96 712.00000 696.06507 2.24% - 1s 0 0 696.07549 0 102 712.00000 696.07549 2.24% - 1s 0 0 696.08885 0 101 712.00000 696.08885 2.23% - 1s 0 0 696.09959 0 101 712.00000 696.09959 2.23% - 1s 0 0 696.12982 0 96 712.00000 696.12982 2.23% - 1s 0 0 696.15213 0 103 712.00000 696.15213 2.23% - 1s 0 0 696.15213 0 105 712.00000 696.15213 2.23% - 1s 0 0 696.16436 0 99 712.00000 696.16436 2.22% - 1s 0 0 696.16436 0 101 712.00000 696.16436 2.22% - 1s 0 0 696.16680 0 100 712.00000 696.16680 2.22% - 2s 0 0 696.16680 0 102 712.00000 696.16680 2.22% - 2s 0 2 696.16814 0 102 712.00000 696.16814 2.22% - 2s H 83 75 710.0000000 696.19564 1.94% 22.8 3s * 202 159 30 709.0000000 697.22796 1.66% 19.4 3s * 314 210 38 708.0000000 697.75570 1.45% 18.8 3s 607 379 704.64286 23 99 708.00000 698.60429 1.33% 17.7 5s * 691 382 36 707.0000000 698.60429 1.19% 19.7 6s 2186 677 705.60000 27 54 707.00000 700.84058 0.87% 18.7 10s * 2431 689 30 706.0000000 701.03765 0.70% 18.8 10s 4654 805 703.33111 28 78 706.00000 702.46618 0.50% 17.8 15s Cutting planes: Gomory: 4 MIR: 2 Zero half: 8 Explored 7630 nodes (124745 simplex iterations) in 19.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 39), (11, 59), (12, 60), (12, 67), (13, 41), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (28, 46), (28, 53), (30, 46), (30, 49), (37, 48), (37, 70), (39, 66), (41, 73), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(2, 44), (2, 63), (4, 45), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (23, 62), (23, 63), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (31, 75), (32, 40), (32, 56), (33, 45), (42, 57), (42, 65), (43, 44), (43, 65)] Optimize a model with 391 rows, 2850 columns and 144742 nonzeros Presolve time: 0.10s Presolved: 391 rows, 2850 columns, 144742 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.949118e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 694.91182 0 90 2820.00000 694.91182 75.4% - 0s Another try with MIP start H 0 0 715.0000000 694.91182 2.81% - 0s 0 0 695.72039 0 94 715.00000 695.72039 2.70% - 0s 0 0 695.72039 0 90 715.00000 695.72039 2.70% - 0s 0 0 695.72045 0 93 715.00000 695.72045 2.70% - 1s 0 0 695.77718 0 96 715.00000 695.77718 2.69% - 1s 0 0 695.79277 0 99 715.00000 695.79277 2.69% - 1s 0 0 695.79277 0 101 715.00000 695.79277 2.69% - 1s 0 0 695.84616 0 100 715.00000 695.84616 2.68% - 1s 0 0 695.85085 0 101 715.00000 695.85085 2.68% - 1s 0 0 696.06507 0 96 715.00000 696.06507 2.65% - 1s 0 0 696.07549 0 102 715.00000 696.07549 2.65% - 1s 0 0 696.08885 0 101 715.00000 696.08885 2.64% - 1s 0 0 696.09959 0 101 715.00000 696.09959 2.64% - 1s 0 0 696.12982 0 96 715.00000 696.12982 2.64% - 1s 0 0 696.15213 0 103 715.00000 696.15213 2.64% - 1s 0 0 696.15213 0 105 715.00000 696.15213 2.64% - 1s 0 0 696.16121 0 100 715.00000 696.16121 2.63% - 1s 0 0 696.16121 0 102 715.00000 696.16121 2.63% - 2s 0 0 696.16222 0 102 715.00000 696.16222 2.63% - 2s 0 0 696.16222 0 102 715.00000 696.16222 2.63% - 2s 0 2 696.16563 0 102 715.00000 696.16563 2.63% - 2s * 82 69 52 710.0000000 697.23166 1.80% 22.3 2s * 176 121 26 708.0000000 697.49138 1.48% 20.1 2s 699 414 706.49275 28 74 708.00000 698.90844 1.28% 20.6 5s H 948 442 707.0000000 698.90844 1.14% 21.0 5s 3023 1160 702.87887 18 79 707.00000 701.14851 0.83% 18.3 10s * 3746 1257 32 706.0000000 701.43333 0.65% 17.9 11s 5520 1521 703.10526 25 74 706.00000 702.18315 0.54% 17.3 15s 8150 1601 704.27794 28 74 706.00000 702.89207 0.44% 16.5 20s 11332 1039 704.18944 27 81 706.00000 703.71875 0.32% 15.8 25s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 13195 nodes (198500 simplex iterations) in 27.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (3, 63), (6, 38), (6, 49), (17, 50), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 25), (24, 57), (25, 50), (29, 62), (29, 75), (30, 46), (30, 49), (34, 64), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 40), (28, 53), (39, 66), (40, 73), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (20, 54), (20, 55), (59, 73), (60, 67)] Optimize a model with 393 rows, 2850 columns and 145428 nonzeros Presolve time: 0.10s Presolved: 393 rows, 2850 columns, 145428 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.950675e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.06753 0 88 2820.00000 695.06753 75.4% - 0s Another try with MIP start H 0 0 710.0000000 695.06753 2.10% - 0s 0 0 696.00934 0 95 710.00000 696.00934 1.97% - 0s 0 0 696.00934 0 88 710.00000 696.00934 1.97% - 1s 0 0 696.07982 0 88 710.00000 696.07982 1.96% - 1s 0 0 696.17660 0 94 710.00000 696.17660 1.95% - 1s 0 0 696.21010 0 99 710.00000 696.21010 1.94% - 1s 0 0 696.21010 0 101 710.00000 696.21010 1.94% - 1s 0 0 696.24416 0 101 710.00000 696.24416 1.94% - 1s 0 0 696.24416 0 103 710.00000 696.24416 1.94% - 1s 0 0 696.32631 0 95 710.00000 696.32631 1.93% - 1s 0 0 696.33250 0 98 710.00000 696.33250 1.92% - 1s 0 0 696.34365 0 99 710.00000 696.34365 1.92% - 1s 0 0 696.34365 0 100 710.00000 696.34365 1.92% - 1s 0 0 696.34365 0 100 710.00000 696.34365 1.92% - 1s 0 0 696.34365 0 99 710.00000 696.34365 1.92% - 1s 0 0 696.34365 0 101 710.00000 696.34365 1.92% - 1s 0 2 696.35298 0 100 710.00000 696.35298 1.92% - 2s H 177 106 707.0000000 697.79104 1.30% 19.3 3s 608 306 699.51845 11 94 707.00000 699.51845 1.06% 19.6 5s * 1169 382 26 706.0000000 699.96578 0.85% 20.4 6s 2949 648 cutoff 27 706.00000 701.83288 0.59% 18.8 10s 5622 618 703.85965 24 79 706.00000 703.25000 0.39% 17.1 15s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 7145 nodes (115689 simplex iterations) in 17.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (8, 36), (9, 20), (9, 36), (11, 32), (11, 59), (12, 54), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (20, 55), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 56), (34, 64), (34, 74), (39, 59), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (55, 60), (63, 74), (66, 67)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 58), (14, 28), (47, 53), (35, 47), (21, 71), (21, 38), (22, 75), (22, 48), (28, 53), (61, 71), (61, 72)] Optimize a model with 395 rows, 2850 columns and 146211 nonzeros Presolve time: 0.10s Presolved: 395 rows, 2850 columns, 146211 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 242 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 88 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 710.0000000 695.29764 2.07% - 0s 0 0 696.03021 0 91 710.00000 696.03021 1.97% - 0s 0 0 696.03021 0 87 710.00000 696.03021 1.97% - 0s 0 0 696.13317 0 94 710.00000 696.13317 1.95% - 0s 0 0 696.14587 0 96 710.00000 696.14587 1.95% - 0s 0 0 696.20082 0 92 710.00000 696.20082 1.94% - 1s 0 0 696.21748 0 98 710.00000 696.21748 1.94% - 1s 0 0 696.22094 0 101 710.00000 696.22094 1.94% - 1s 0 0 696.22094 0 103 710.00000 696.22094 1.94% - 1s 0 0 696.25898 0 97 710.00000 696.25898 1.94% - 1s 0 0 696.25898 0 99 710.00000 696.25898 1.94% - 1s 0 0 696.26396 0 102 710.00000 696.26396 1.93% - 1s 0 0 696.26396 0 104 710.00000 696.26396 1.93% - 1s 0 0 696.27289 0 103 710.00000 696.27289 1.93% - 1s 0 0 696.27462 0 105 710.00000 696.27462 1.93% - 1s 0 0 696.27865 0 106 710.00000 696.27865 1.93% - 1s 0 0 696.27904 0 108 710.00000 696.27904 1.93% - 1s 0 0 696.28284 0 107 710.00000 696.28284 1.93% - 1s 0 0 696.29431 0 100 710.00000 696.29431 1.93% - 1s 0 0 696.29431 0 102 710.00000 696.29431 1.93% - 1s 0 0 696.29543 0 104 710.00000 696.29543 1.93% - 1s 0 2 696.33853 0 104 710.00000 696.33853 1.92% - 2s H 27 27 707.0000000 696.46777 1.49% 22.2 2s 893 468 705.00000 25 41 707.00000 698.90985 1.14% 18.6 5s * 1482 483 29 706.0000000 699.76087 0.88% 18.5 6s 3223 819 703.85842 23 75 706.00000 701.77165 0.60% 18.0 10s 5687 931 704.55238 27 78 706.00000 702.78788 0.45% 17.1 15s 8417 397 704.97347 22 78 706.00000 703.92405 0.29% 16.2 20s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 9025 nodes (142905 simplex iterations) in 20.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (6, 16), (6, 38), (9, 36), (9, 47), (14, 28), (14, 55), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 58), (29, 63), (29, 75), (35, 47), (35, 53), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (8, 54), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (40, 73), (26, 56), (59, 73)] adding cut for [(19, 51), (19, 25), (33, 45), (33, 51), (34, 64), (4, 45), (4, 17), (17, 52), (50, 57), (24, 64), (24, 57), (25, 50)] Optimize a model with 398 rows, 2850 columns and 146937 nonzeros Presolve time: 0.10s Presolved: 398 rows, 2850 columns, 146937 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 242 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 88 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 707.0000000 695.29764 1.66% - 0s 0 0 696.03021 0 91 707.00000 696.03021 1.55% - 0s 0 0 696.03021 0 87 707.00000 696.03021 1.55% - 0s 0 0 696.14653 0 96 707.00000 696.14653 1.54% - 0s 0 0 696.14653 0 98 707.00000 696.14653 1.54% - 0s 0 0 696.15777 0 95 707.00000 696.15777 1.53% - 1s 0 0 696.16893 0 101 707.00000 696.16893 1.53% - 1s 0 0 696.16893 0 102 707.00000 696.16893 1.53% - 1s 0 0 696.21568 0 100 707.00000 696.21568 1.53% - 1s 0 0 696.22877 0 100 707.00000 696.22877 1.52% - 1s 0 0 696.24467 0 101 707.00000 696.24467 1.52% - 1s 0 0 696.27778 0 98 707.00000 696.27778 1.52% - 1s 0 0 696.28499 0 103 707.00000 696.28499 1.52% - 1s 0 0 696.30210 0 99 707.00000 696.30210 1.51% - 1s 0 0 696.30210 0 101 707.00000 696.30210 1.51% - 1s 0 0 696.30581 0 102 707.00000 696.30581 1.51% - 1s 0 0 696.30581 0 104 707.00000 696.30581 1.51% - 1s 0 0 696.33761 0 104 707.00000 696.33761 1.51% - 1s 0 0 696.34193 0 106 707.00000 696.34193 1.51% - 1s 0 0 696.34467 0 106 707.00000 696.34467 1.51% - 1s 0 0 696.34565 0 108 707.00000 696.34565 1.51% - 1s 0 2 696.35609 0 108 707.00000 696.35609 1.51% - 1s 993 502 702.12500 28 70 707.00000 699.06637 1.12% 20.9 5s * 2215 707 33 706.0000000 700.81720 0.73% 19.2 7s 3380 877 701.85217 20 78 706.00000 701.73832 0.60% 18.8 10s 5929 856 704.50000 22 36 706.00000 702.89883 0.44% 17.7 15s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Explored 8021 nodes (134110 simplex iterations) in 18.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(9, 20), (9, 36), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 70), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (32, 56), (36, 54), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72)] Optimize a model with 399 rows, 2850 columns and 147840 nonzeros Presolve time: 0.10s Presolved: 399 rows, 2850 columns, 147840 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.02004 0 92 716.00000 696.02004 2.79% - 0s 0 0 696.02004 0 87 716.00000 696.02004 2.79% - 0s 0 0 696.12776 0 93 716.00000 696.12776 2.78% - 1s 0 0 696.14118 0 96 716.00000 696.14118 2.77% - 1s 0 0 696.19815 0 93 716.00000 696.19815 2.77% - 1s 0 0 696.21715 0 97 716.00000 696.21715 2.76% - 1s 0 0 696.22081 0 99 716.00000 696.22081 2.76% - 1s 0 0 696.22081 0 101 716.00000 696.22081 2.76% - 1s 0 0 696.23156 0 101 716.00000 696.23156 2.76% - 1s 0 0 696.23345 0 102 716.00000 696.23345 2.76% - 1s 0 0 696.23345 0 101 716.00000 696.23345 2.76% - 1s 0 0 696.23345 0 103 716.00000 696.23345 2.76% - 1s 0 0 696.25848 0 98 716.00000 696.25848 2.76% - 1s 0 0 696.25848 0 100 716.00000 696.25848 2.76% - 1s 0 0 696.26753 0 102 716.00000 696.26753 2.76% - 2s 0 0 696.26951 0 106 716.00000 696.26951 2.76% - 2s 0 0 696.26973 0 104 716.00000 696.26973 2.76% - 2s 0 0 696.27248 0 107 716.00000 696.27248 2.76% - 2s 0 2 696.27306 0 107 716.00000 696.27306 2.76% - 2s H 54 54 714.0000000 696.45090 2.46% 24.2 3s H 187 153 713.0000000 696.51846 2.31% 21.0 4s * 484 279 38 709.0000000 696.66871 1.74% 18.8 4s 601 350 707.06667 37 92 709.00000 697.70370 1.59% 18.4 5s * 961 454 30 708.0000000 698.20831 1.38% 20.1 7s * 1690 554 38 707.0000000 699.66860 1.04% 19.0 9s H 1834 490 706.0000000 699.95408 0.86% 19.1 9s 1848 496 703.12996 24 86 706.00000 699.95775 0.86% 19.1 10s 3116 718 cutoff 38 706.00000 700.31915 0.80% 19.0 15s 5582 1163 704.36677 41 68 706.00000 701.90246 0.58% 18.0 20s 8086 1290 703.76610 39 67 706.00000 702.65123 0.47% 17.5 25s 10798 856 704.28466 46 75 706.00000 703.49462 0.35% 17.1 30s Cutting planes: Gomory: 4 MIR: 1 Zero half: 8 Mod-K: 1 Explored 12384 nodes (205642 simplex iterations) in 32.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(3, 75), (6, 16), (6, 38), (8, 36), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (29, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(19, 51), (19, 56), (33, 51), (66, 67), (40, 73), (10, 33), (10, 40), (11, 32), (11, 39), (12, 67), (12, 60), (13, 59), (15, 54), (15, 60), (39, 66), (26, 32), (26, 56), (59, 73)] adding cut for [(2, 44), (2, 63), (4, 45), (4, 25), (41, 45), (43, 65), (43, 44), (34, 64), (34, 74), (17, 64), (17, 52), (25, 50), (24, 50), (24, 57), (42, 65), (42, 57), (63, 74)] Optimize a model with 402 rows, 2850 columns and 148395 nonzeros Presolve time: 0.10s Presolved: 402 rows, 2850 columns, 148395 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 247 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.02004 0 92 716.00000 696.02004 2.79% - 0s 0 0 696.02004 0 87 716.00000 696.02004 2.79% - 0s 0 0 696.14146 0 97 716.00000 696.14146 2.77% - 1s 0 0 696.18620 0 101 716.00000 696.18620 2.77% - 1s 0 0 696.23223 0 99 716.00000 696.23223 2.76% - 1s 0 0 696.23700 0 98 716.00000 696.23700 2.76% - 1s 0 0 696.24179 0 102 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 101 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 103 716.00000 696.24179 2.76% - 1s 0 0 696.26133 0 102 716.00000 696.26133 2.76% - 1s 0 0 696.26348 0 104 716.00000 696.26348 2.76% - 1s 0 0 696.26693 0 108 716.00000 696.26693 2.76% - 1s 0 0 696.27970 0 105 716.00000 696.27970 2.75% - 1s 0 0 696.27970 0 106 716.00000 696.27970 2.75% - 1s 0 0 696.28891 0 105 716.00000 696.28891 2.75% - 1s 0 0 696.28891 0 107 716.00000 696.28891 2.75% - 1s 0 0 696.29635 0 106 716.00000 696.29635 2.75% - 2s 0 0 696.29635 0 107 716.00000 696.29635 2.75% - 2s 0 0 696.33670 0 102 716.00000 696.33670 2.75% - 2s 0 0 696.36478 0 102 716.00000 696.36478 2.74% - 2s 0 0 696.36552 0 105 716.00000 696.36552 2.74% - 2s 0 0 696.37537 0 102 716.00000 696.37537 2.74% - 2s 0 0 696.37546 0 106 716.00000 696.37546 2.74% - 2s 0 0 696.37614 0 108 716.00000 696.37614 2.74% - 2s 0 0 696.37614 0 108 716.00000 696.37614 2.74% - 2s 0 2 696.37874 0 108 716.00000 696.37874 2.74% - 2s H 54 54 714.0000000 696.46778 2.46% 22.9 3s * 89 78 59 712.0000000 696.46778 2.18% 19.9 3s * 385 308 45 711.0000000 697.24163 1.94% 18.2 4s H 600 386 709.0000000 697.76975 1.58% 17.8 5s * 1092 505 43 708.0000000 698.80415 1.30% 18.3 9s 1343 572 703.61966 19 78 708.00000 699.36914 1.22% 18.3 10s * 2281 842 33 707.0000000 700.24291 0.96% 17.5 11s * 3150 987 33 706.0000000 700.79058 0.74% 17.3 13s 3347 1078 703.83333 39 60 706.00000 700.89672 0.72% 17.5 15s 5618 1051 703.57237 40 76 706.00000 701.58824 0.62% 17.6 20s 8263 964 cutoff 31 706.00000 702.75851 0.46% 17.0 25s 11153 289 cutoff 30 706.00000 704.12500 0.27% 16.2 30s Cutting planes: Gomory: 6 MIR: 2 Zero half: 4 Explored 11560 nodes (184590 simplex iterations) in 30.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 30), (6, 38), (10, 32), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 30), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (37, 70), (37, 72), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70)] Optimize a model with 403 rows, 2850 columns and 149298 nonzeros Presolve time: 0.10s Presolved: 403 rows, 2850 columns, 149298 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 247 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.02004 0 92 716.00000 696.02004 2.79% - 0s 0 0 696.02004 0 87 716.00000 696.02004 2.79% - 0s 0 0 696.14146 0 97 716.00000 696.14146 2.77% - 1s 0 0 696.18620 0 101 716.00000 696.18620 2.77% - 1s 0 0 696.23223 0 99 716.00000 696.23223 2.76% - 1s 0 0 696.23700 0 98 716.00000 696.23700 2.76% - 1s 0 0 696.24179 0 102 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 101 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 103 716.00000 696.24179 2.76% - 1s 0 0 696.26133 0 102 716.00000 696.26133 2.76% - 1s 0 0 696.26348 0 104 716.00000 696.26348 2.76% - 1s 0 0 696.26693 0 108 716.00000 696.26693 2.76% - 1s 0 0 696.27970 0 105 716.00000 696.27970 2.75% - 1s 0 0 696.27970 0 106 716.00000 696.27970 2.75% - 1s 0 0 696.28891 0 105 716.00000 696.28891 2.75% - 1s 0 0 696.28891 0 107 716.00000 696.28891 2.75% - 2s 0 0 696.29635 0 106 716.00000 696.29635 2.75% - 2s 0 0 696.29635 0 107 716.00000 696.29635 2.75% - 2s 0 0 696.33670 0 102 716.00000 696.33670 2.75% - 2s 0 0 696.36478 0 102 716.00000 696.36478 2.74% - 2s 0 0 696.36552 0 105 716.00000 696.36552 2.74% - 2s 0 0 696.37537 0 102 716.00000 696.37537 2.74% - 2s 0 0 696.37546 0 106 716.00000 696.37546 2.74% - 2s 0 0 696.37614 0 108 716.00000 696.37614 2.74% - 2s 0 0 696.37614 0 108 716.00000 696.37614 2.74% - 2s 0 2 696.37874 0 108 716.00000 696.37874 2.74% - 2s H 54 50 708.0000000 696.46778 1.63% 22.8 3s 601 427 705.96400 29 92 708.00000 698.37614 1.36% 17.6 5s H 1067 507 707.0000000 699.28145 1.09% 19.2 9s 1482 573 702.35036 18 84 707.00000 699.90997 1.00% 18.7 10s * 2269 673 29 706.0000000 700.70238 0.75% 18.2 11s 3939 828 703.69195 30 75 706.00000 701.91608 0.58% 17.6 15s 6405 637 703.89286 20 67 706.00000 703.02727 0.42% 17.2 20s Cutting planes: Gomory: 7 MIR: 1 Zero half: 4 Explored 7981 nodes (130854 simplex iterations) in 22.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 30), (16, 58), (19, 51), (19, 56), (20, 55), (26, 32), (26, 56), (28, 46), (28, 53), (30, 46), (33, 51), (35, 53), (39, 66), (40, 73), (59, 73), (66, 67)] adding cut for [(2, 44), (2, 74), (3, 75), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (49, 75), (61, 71), (61, 72), (70, 72)] Optimize a model with 405 rows, 2850 columns and 149925 nonzeros Presolve time: 0.10s Presolved: 405 rows, 2850 columns, 149925 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 710.0000000 695.29764 2.07% - 0s 0 0 696.02004 0 92 710.00000 696.02004 1.97% - 0s 0 0 696.02004 0 86 710.00000 696.02004 1.97% - 0s 0 0 696.12776 0 93 710.00000 696.12776 1.95% - 1s 0 0 696.14031 0 95 710.00000 696.14031 1.95% - 1s 0 0 696.19815 0 92 710.00000 696.19815 1.94% - 1s 0 0 696.21715 0 96 710.00000 696.21715 1.94% - 1s 0 0 696.21715 0 95 710.00000 696.21715 1.94% - 1s 0 0 696.21715 0 97 710.00000 696.21715 1.94% - 1s 0 0 696.22081 0 98 710.00000 696.22081 1.94% - 1s 0 0 696.22081 0 99 710.00000 696.22081 1.94% - 1s 0 0 696.23156 0 101 710.00000 696.23156 1.94% - 1s 0 0 696.23260 0 104 710.00000 696.23260 1.94% - 1s 0 0 696.25692 0 97 710.00000 696.25692 1.94% - 1s 0 0 696.25918 0 99 710.00000 696.25918 1.94% - 1s 0 0 696.26218 0 101 710.00000 696.26218 1.93% - 1s 0 0 696.27074 0 105 710.00000 696.27074 1.93% - 1s 0 0 696.27074 0 106 710.00000 696.27074 1.93% - 1s 0 0 696.27963 0 99 710.00000 696.27963 1.93% - 1s 0 0 696.27963 0 101 710.00000 696.27963 1.93% - 1s 0 0 696.28669 0 103 710.00000 696.28669 1.93% - 1s 0 0 696.28669 0 105 710.00000 696.28669 1.93% - 2s 0 0 696.29101 0 104 710.00000 696.29101 1.93% - 2s 0 0 696.29101 0 107 710.00000 696.29101 1.93% - 2s 0 0 696.29885 0 103 710.00000 696.29885 1.93% - 2s 0 0 696.29885 0 105 710.00000 696.29885 1.93% - 2s 0 0 696.33396 0 104 710.00000 696.33396 1.92% - 2s 0 0 696.33396 0 106 710.00000 696.33396 1.92% - 2s 0 0 696.34256 0 105 710.00000 696.34256 1.92% - 2s 0 0 696.34332 0 107 710.00000 696.34332 1.92% - 2s 0 0 696.34332 0 105 710.00000 696.34332 1.92% - 2s 0 2 696.35216 0 105 710.00000 696.35216 1.92% - 3s 611 448 698.58219 10 101 710.00000 698.58219 1.61% 16.0 5s * 768 484 49 709.0000000 698.58219 1.47% 17.5 5s * 988 497 33 707.0000000 698.63767 1.18% 18.8 6s 2693 931 705.42056 18 70 707.00000 701.11821 0.83% 17.8 10s 4826 1548 705.41837 24 71 707.00000 701.99319 0.71% 17.5 15s 7102 2076 704.25532 18 66 707.00000 702.59375 0.62% 17.1 20s * 7201 1763 30 706.0000000 702.60827 0.48% 17.0 20s 9564 1515 704.23529 26 67 706.00000 703.37069 0.37% 16.7 25s Cutting planes: Gomory: 2 MIR: 1 Zero half: 11 Explored 12609 nodes (197285 simplex iterations) in 29.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 38), (6, 49), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (31, 49), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 30), (16, 58), (20, 55), (26, 56), (28, 58), (30, 46), (32, 56), (39, 66), (40, 73), (59, 73), (60, 67)] Optimize a model with 407 rows, 2850 columns and 150534 nonzeros Presolve time: 0.10s Presolved: 407 rows, 2850 columns, 150534 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 711.0000000 695.29764 2.21% - 0s 0 0 696.02004 0 92 711.00000 696.02004 2.11% - 0s 0 0 696.02004 0 87 711.00000 696.02004 2.11% - 0s 0 0 696.12776 0 93 711.00000 696.12776 2.09% - 1s 0 0 696.14031 0 96 711.00000 696.14031 2.09% - 1s 0 0 696.19815 0 93 711.00000 696.19815 2.08% - 1s 0 0 696.21715 0 97 711.00000 696.21715 2.08% - 1s 0 0 696.22081 0 99 711.00000 696.22081 2.08% - 1s 0 0 696.23156 0 102 711.00000 696.23156 2.08% - 1s 0 0 696.23345 0 103 711.00000 696.23345 2.08% - 1s 0 0 696.25692 0 98 711.00000 696.25692 2.07% - 1s 0 0 696.25918 0 100 711.00000 696.25918 2.07% - 1s 0 0 696.26123 0 104 711.00000 696.26123 2.07% - 1s 0 0 696.28012 0 107 711.00000 696.28012 2.07% - 1s 0 0 696.28843 0 103 711.00000 696.28843 2.07% - 1s 0 0 696.29271 0 106 711.00000 696.29271 2.07% - 1s 0 0 696.30008 0 106 711.00000 696.30008 2.07% - 1s 0 0 696.31360 0 104 711.00000 696.31360 2.07% - 1s 0 0 696.32662 0 106 711.00000 696.32662 2.06% - 1s 0 0 696.32836 0 108 711.00000 696.32836 2.06% - 1s 0 0 696.33333 0 107 711.00000 696.33333 2.06% - 1s 0 0 696.41980 0 107 711.00000 696.41980 2.05% - 2s 0 0 696.43057 0 106 711.00000 696.43057 2.05% - 2s 0 0 696.44557 0 105 711.00000 696.44557 2.05% - 2s 0 0 696.46970 0 107 711.00000 696.46970 2.04% - 2s 0 0 696.47310 0 109 711.00000 696.47310 2.04% - 2s 0 0 696.49572 0 107 711.00000 696.49572 2.04% - 2s 0 0 696.50792 0 110 711.00000 696.50792 2.04% - 2s 0 0 696.52334 0 105 711.00000 696.52334 2.04% - 2s 0 0 696.52334 0 107 711.00000 696.52334 2.04% - 2s 0 0 696.53780 0 107 711.00000 696.53780 2.03% - 2s 0 0 696.53780 0 110 711.00000 696.53780 2.03% - 2s 0 0 696.55079 0 104 711.00000 696.55079 2.03% - 2s 0 0 696.55079 0 105 711.00000 696.55079 2.03% - 2s 0 0 696.55542 0 105 711.00000 696.55542 2.03% - 2s 0 0 696.55667 0 110 711.00000 696.55667 2.03% - 2s 0 0 696.55668 0 112 711.00000 696.55668 2.03% - 2s 0 2 696.55677 0 112 711.00000 696.55677 2.03% - 3s H 141 105 707.0000000 696.73915 1.45% 19.1 3s 601 385 703.08331 11 92 707.00000 698.79545 1.16% 19.7 5s 1649 588 703.26459 21 84 707.00000 700.26658 0.95% 19.4 10s * 2204 650 28 706.0000000 700.54739 0.77% 18.8 11s 3983 819 704.36634 25 71 706.00000 701.78761 0.60% 18.2 15s 6515 619 704.09376 21 75 706.00000 703.05556 0.42% 17.5 20s Cutting planes: Gomory: 6 MIR: 1 Zero half: 4 Explored 7932 nodes (133493 simplex iterations) in 22.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 36), (9, 47), (11, 32), (11, 39), (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), (28, 53), (29, 62), (29, 63), (31, 75), (32, 56), (36, 54), (39, 66), (42, 43), (42, 44), (43, 65), (47, 53), (50, 57), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (14, 55), (14, 58), (16, 58), (8, 20), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] Optimize a model with 409 rows, 2850 columns and 151282 nonzeros Presolve time: 0.10s Presolved: 409 rows, 2850 columns, 151282 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 212 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.02004 0 92 716.00000 696.02004 2.79% - 0s 0 0 696.02004 0 87 716.00000 696.02004 2.79% - 1s 0 0 696.14146 0 97 716.00000 696.14146 2.77% - 1s 0 0 696.18620 0 101 716.00000 696.18620 2.77% - 1s 0 0 696.23223 0 99 716.00000 696.23223 2.76% - 1s 0 0 696.23700 0 97 716.00000 696.23700 2.76% - 1s 0 0 696.24179 0 102 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 101 716.00000 696.24179 2.76% - 1s 0 0 696.24179 0 103 716.00000 696.24179 2.76% - 1s 0 0 696.26133 0 102 716.00000 696.26133 2.76% - 1s 0 0 696.26133 0 104 716.00000 696.26133 2.76% - 1s 0 0 696.26807 0 100 716.00000 696.26807 2.76% - 1s 0 0 696.26807 0 101 716.00000 696.26807 2.76% - 1s 0 0 696.26807 0 102 716.00000 696.26807 2.76% - 1s 0 0 696.26807 0 103 716.00000 696.26807 2.76% - 2s 0 2 696.28254 0 103 716.00000 696.28254 2.75% - 2s * 267 215 57 713.0000000 696.92960 2.25% 18.4 3s * 507 379 60 712.0000000 697.58030 2.03% 18.6 3s 605 426 699.34566 14 93 712.00000 698.19440 1.94% 18.4 5s * 794 460 58 709.0000000 698.19440 1.52% 20.4 7s H 796 398 707.0000000 698.19440 1.25% 20.3 8s 910 436 698.60370 20 92 707.00000 698.60370 1.19% 20.6 10s 2739 759 703.82441 27 72 707.00000 700.84393 0.87% 19.1 15s * 4832 1057 44 706.0000000 701.92220 0.58% 18.2 19s 5283 1045 702.29829 33 86 706.00000 702.12758 0.55% 18.1 20s 8154 504 704.56863 30 70 706.00000 703.76758 0.32% 17.2 25s Cutting planes: Gomory: 5 MIR: 3 Zero half: 1 Explored 8902 nodes (148553 simplex iterations) in 26.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 9), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (19, 25), (19, 51), (20, 36), (20, 55), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 63), (32, 56), (34, 74), (35, 47), (35, 53), (36, 54), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (63, 74), (66, 67)] adding cut for [(16, 58), (3, 75), (37, 70), (37, 48), (70, 72), (21, 71), (21, 38), (22, 75), (22, 48), (6, 16), (6, 38), (61, 71), (61, 72), (30, 49), (30, 58), (31, 49)] Optimize a model with 411 rows, 2850 columns and 152159 nonzeros Presolve time: 0.10s Presolved: 411 rows, 2850 columns, 152159 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 86 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 695.98059 0 92 716.00000 695.98059 2.80% - 0s 0 0 695.98059 0 87 716.00000 695.98059 2.80% - 0s 0 0 696.11188 0 93 716.00000 696.11188 2.78% - 1s 0 0 696.14116 0 96 716.00000 696.14116 2.77% - 1s 0 0 696.19815 0 93 716.00000 696.19815 2.77% - 1s 0 0 696.21715 0 98 716.00000 696.21715 2.76% - 1s 0 0 696.22081 0 100 716.00000 696.22081 2.76% - 1s 0 0 696.22081 0 102 716.00000 696.22081 2.76% - 1s 0 0 696.24333 0 98 716.00000 696.24333 2.76% - 1s 0 0 696.24719 0 102 716.00000 696.24719 2.76% - 1s 0 0 696.24719 0 103 716.00000 696.24719 2.76% - 1s 0 0 696.24719 0 104 716.00000 696.24719 2.76% - 1s 0 2 696.24821 0 104 716.00000 696.24821 2.76% - 1s H 109 94 715.0000000 696.40929 2.60% 21.0 3s * 156 108 41 709.0000000 696.40929 1.78% 20.1 3s 603 415 704.01281 17 87 709.00000 697.60187 1.61% 18.1 5s H 687 427 708.0000000 697.97121 1.42% 19.1 7s H 969 453 707.0000000 698.82981 1.16% 18.9 8s 1636 562 703.88310 31 84 707.00000 700.09388 0.98% 18.2 10s 4082 1269 703.13580 19 81 707.00000 701.72769 0.75% 17.1 15s 6572 1673 704.30853 16 73 707.00000 702.41071 0.65% 16.8 20s * 7712 1499 25 706.0000000 702.71084 0.47% 16.6 22s 9200 1223 cutoff 24 706.00000 703.30259 0.38% 16.4 25s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 11498 nodes (179665 simplex iterations) in 28.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 75), (6, 16), (6, 38), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (32, 40), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(34, 64), (34, 52), (4, 45), (4, 17), (33, 41), (10, 33), (10, 26), (45, 51), (17, 50), (19, 51), (19, 56), (24, 64), (24, 57), (25, 50), (25, 57), (26, 56)] Optimize a model with 413 rows, 2850 columns and 152998 nonzeros Presolve time: 0.10s Presolved: 413 rows, 2850 columns, 152998 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.10235 0 98 716.00000 696.10235 2.78% - 0s 0 0 696.10235 0 87 716.00000 696.10235 2.78% - 0s 0 0 696.13476 0 93 716.00000 696.13476 2.77% - 1s 0 0 696.16101 0 96 716.00000 696.16101 2.77% - 1s 0 0 696.16101 0 98 716.00000 696.16101 2.77% - 1s 0 0 696.19429 0 96 716.00000 696.19429 2.77% - 1s 0 0 696.19429 0 98 716.00000 696.19429 2.77% - 1s 0 0 696.19595 0 97 716.00000 696.19595 2.77% - 1s 0 0 696.19970 0 104 716.00000 696.19970 2.77% - 1s 0 0 696.23450 0 103 716.00000 696.23450 2.76% - 1s 0 0 696.23450 0 105 716.00000 696.23450 2.76% - 1s 0 0 696.25025 0 100 716.00000 696.25025 2.76% - 1s 0 0 696.25893 0 100 716.00000 696.25893 2.76% - 1s 0 0 696.26704 0 103 716.00000 696.26704 2.76% - 1s 0 0 696.28845 0 101 716.00000 696.28845 2.75% - 2s 0 0 696.31797 0 102 716.00000 696.31797 2.75% - 2s 0 0 696.31797 0 103 716.00000 696.31797 2.75% - 2s 0 0 696.31821 0 102 716.00000 696.31821 2.75% - 2s 0 0 696.32981 0 104 716.00000 696.32981 2.75% - 2s 0 0 696.33186 0 108 716.00000 696.33186 2.75% - 2s 0 0 696.34834 0 107 716.00000 696.34834 2.74% - 2s 0 0 696.37192 0 106 716.00000 696.37192 2.74% - 2s 0 0 696.37192 0 106 716.00000 696.37192 2.74% - 2s 0 2 696.37342 0 106 716.00000 696.37342 2.74% - 3s * 126 112 80 715.0000000 696.50766 2.59% 18.6 4s 376 328 710.57544 39 71 715.00000 696.95126 2.52% 17.3 5s * 490 321 48 711.0000000 697.12727 1.95% 17.2 5s H 600 300 709.0000000 697.50766 1.62% 17.7 5s H 918 366 708.0000000 698.54532 1.34% 19.7 8s 1468 501 700.58865 16 92 708.00000 700.01973 1.13% 19.7 10s * 2875 1072 27 707.0000000 701.06080 0.84% 18.5 12s * 3835 1127 29 706.0000000 701.57143 0.63% 18.0 14s 3837 1127 703.07092 26 86 706.00000 701.57194 0.63% 18.0 15s 4237 1188 701.71154 30 88 706.00000 701.71154 0.61% 18.2 20s 6478 779 704.10453 40 72 706.00000 702.27027 0.53% 17.7 25s Cutting planes: Gomory: 6 MIR: 1 Zero half: 7 Explored 8717 nodes (147278 simplex iterations) in 28.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (17, 64), (39, 66), (9, 54), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(6, 38), (6, 49), (21, 38), (21, 71), (22, 75), (22, 48), (31, 75), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(34, 52), (34, 74), (3, 63), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 62), (29, 63), (23, 65), (23, 62)] Optimize a model with 416 rows, 2850 columns and 153391 nonzeros Presolve time: 0.10s Presolved: 416 rows, 2850 columns, 153391 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.952976e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.29764 0 87 2820.00000 695.29764 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.29764 2.89% - 0s 0 0 696.10235 0 98 716.00000 696.10235 2.78% - 0s 0 0 696.10235 0 86 716.00000 696.10235 2.78% - 0s 0 0 696.13476 0 92 716.00000 696.13476 2.77% - 1s 0 0 696.16101 0 96 716.00000 696.16101 2.77% - 1s 0 0 696.16101 0 98 716.00000 696.16101 2.77% - 1s 0 0 696.19417 0 99 716.00000 696.19417 2.77% - 1s 0 0 696.19417 0 101 716.00000 696.19417 2.77% - 1s 0 0 696.20295 0 98 716.00000 696.20295 2.76% - 1s 0 0 696.23849 0 100 716.00000 696.23849 2.76% - 1s 0 0 696.25670 0 96 716.00000 696.25670 2.76% - 1s 0 0 696.25670 0 97 716.00000 696.25670 2.76% - 1s 0 0 696.26483 0 102 716.00000 696.26483 2.76% - 1s 0 0 696.28042 0 104 716.00000 696.28042 2.75% - 1s 0 0 696.28042 0 105 716.00000 696.28042 2.75% - 2s 0 0 696.28042 0 106 716.00000 696.28042 2.75% - 2s 0 0 696.29021 0 102 716.00000 696.29021 2.75% - 2s 0 0 696.29021 0 104 716.00000 696.29021 2.75% - 2s 0 0 696.29038 0 104 716.00000 696.29038 2.75% - 2s 0 0 696.29038 0 105 716.00000 696.29038 2.75% - 2s 0 2 696.30622 0 105 716.00000 696.30622 2.75% - 2s * 287 229 53 714.0000000 696.84669 2.40% 18.6 3s H 319 125 706.0000000 697.16730 1.25% 19.0 3s 631 268 700.31699 26 69 706.00000 698.73267 1.03% 18.0 5s 2954 835 703.88987 26 80 706.00000 701.16291 0.69% 18.1 10s 5295 1104 cutoff 30 706.00000 702.16133 0.54% 17.4 15s 7927 1033 cutoff 26 706.00000 702.95455 0.43% 16.7 20s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 10704 nodes (171780 simplex iterations) in 24.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (10, 26), (10, 33), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (14, 28), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (28, 53), (32, 40), (33, 45), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (53, 55), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 417 rows, 2850 columns and 154717 nonzeros Presolve time: 0.10s Presolved: 417 rows, 2850 columns, 154717 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 97 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 1s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 1s 0 0 696.43122 0 105 719.00000 696.43122 3.14% - 1s 0 0 696.44876 0 109 719.00000 696.44876 3.14% - 1s 0 0 696.49230 0 110 719.00000 696.49230 3.13% - 2s 0 0 696.50795 0 107 719.00000 696.50795 3.13% - 2s 0 0 696.51107 0 108 719.00000 696.51107 3.13% - 2s 0 0 696.53009 0 110 719.00000 696.53009 3.13% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 2 696.53967 0 112 719.00000 696.53967 3.12% - 2s * 81 73 54 709.0000000 696.73994 1.73% 25.5 3s * 402 270 34 708.0000000 697.94853 1.42% 19.9 4s 601 388 702.53558 11 97 708.00000 698.26874 1.37% 19.4 5s H 886 455 707.0000000 698.36940 1.22% 21.6 7s 1807 601 705.64286 21 63 707.00000 700.20293 0.96% 20.4 10s 4023 1412 704.38866 23 74 707.00000 701.84749 0.73% 18.6 15s 6559 1927 704.51719 26 68 707.00000 702.63180 0.62% 17.8 20s 8965 2077 704.94118 25 59 707.00000 703.20499 0.54% 17.5 25s *10412 1565 24 706.0000000 703.56970 0.34% 17.3 27s 11982 569 704.60502 26 77 706.00000 704.49452 0.21% 16.7 30s Cutting planes: Gomory: 6 MIR: 2 Zero half: 3 Explored 12599 nodes (203817 simplex iterations) in 30.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 30), (6, 38), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 62), (29, 75), (30, 49), (31, 49), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (39, 66), (9, 54), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (34, 64), (15, 54), (15, 60), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (60, 67)] Optimize a model with 419 rows, 2850 columns and 155227 nonzeros Presolve time: 0.11s Presolved: 419 rows, 2850 columns, 155227 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 97 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 1s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 1s 0 0 696.43122 0 105 719.00000 696.43122 3.14% - 1s 0 0 696.44876 0 109 719.00000 696.44876 3.14% - 1s 0 0 696.49230 0 110 719.00000 696.49230 3.13% - 2s 0 0 696.50795 0 107 719.00000 696.50795 3.13% - 2s 0 0 696.51107 0 108 719.00000 696.51107 3.13% - 2s 0 0 696.53009 0 110 719.00000 696.53009 3.13% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 0 696.53909 0 112 719.00000 696.53909 3.12% - 2s 0 2 696.53967 0 112 719.00000 696.53967 3.12% - 2s * 153 143 101 716.0000000 697.26615 2.62% 22.4 3s H 176 147 715.0000000 697.32580 2.47% 22.2 3s * 235 146 61 711.0000000 697.32580 1.92% 20.1 3s * 420 259 37 710.0000000 697.53909 1.76% 19.6 4s H 510 264 709.0000000 698.06292 1.54% 19.4 4s 511 263 702.57511 23 97 709.00000 698.06292 1.54% 19.4 5s H 526 259 708.0000000 698.06292 1.40% 19.7 6s 1681 705 cutoff 28 708.00000 700.28497 1.09% 19.8 10s * 2218 888 27 707.0000000 700.61132 0.90% 19.9 11s 3658 1470 703.79245 23 84 707.00000 701.32392 0.80% 19.3 15s * 4238 1378 28 706.0000000 701.57106 0.63% 18.9 16s 4702 1490 704.13043 45 67 706.00000 701.64587 0.62% 19.1 20s 6975 1374 cutoff 43 706.00000 701.64587 0.62% 18.8 25s 9181 923 cutoff 47 706.00000 702.62559 0.48% 18.3 30s 12103 453 704.22222 41 54 706.00000 703.81250 0.31% 17.5 35s Cutting planes: Gomory: 9 MIR: 1 Zero half: 5 Explored 12827 nodes (219658 simplex iterations) in 36.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.060000000000e+02, best bound 7.060000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (17, 52), (17, 64), (19, 25), (19, 51), (20, 55), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 38), (6, 30), (21, 38), (21, 71), (22, 48), (22, 49), (31, 49), (70, 72), (61, 71), (61, 72), (30, 46), (37, 48), (37, 70)] Optimize a model with 421 rows, 2850 columns and 155783 nonzeros Presolve time: 0.10s Presolved: 421 rows, 2850 columns, 155783 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 97 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 1s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 1s 0 0 696.43122 0 105 719.00000 696.43122 3.14% - 1s 0 0 696.44733 0 108 719.00000 696.44733 3.14% - 1s 0 0 696.47045 0 106 719.00000 696.47045 3.13% - 2s 0 0 696.47115 0 107 719.00000 696.47115 3.13% - 2s 0 0 696.51187 0 105 719.00000 696.51187 3.13% - 2s 0 0 696.51807 0 109 719.00000 696.51807 3.13% - 2s 0 0 696.51807 0 111 719.00000 696.51807 3.13% - 2s 0 0 696.52157 0 110 719.00000 696.52157 3.13% - 2s 0 0 696.52494 0 112 719.00000 696.52494 3.13% - 2s 0 0 696.52494 0 112 719.00000 696.52494 3.13% - 2s 0 2 696.53061 0 112 719.00000 696.53061 3.13% - 2s * 89 77 56 712.0000000 696.63656 2.16% 24.2 3s * 437 314 27 711.0000000 698.45003 1.77% 20.1 4s * 442 288 23 710.0000000 698.45003 1.63% 19.9 4s * 522 305 46 709.0000000 698.92032 1.42% 19.7 4s H 700 376 708.0000000 699.34068 1.22% 19.0 5s * 2313 756 33 707.0000000 701.17677 0.82% 19.5 9s 2400 781 702.80246 22 89 707.00000 701.26905 0.81% 19.4 10s 4801 1384 704.45251 26 80 707.00000 702.49084 0.64% 18.2 15s 7327 1739 704.41438 24 85 707.00000 703.20833 0.54% 17.5 20s 9933 1833 705.11864 24 62 707.00000 703.79213 0.45% 17.0 25s 13144 1287 cutoff 31 707.00000 704.49874 0.35% 16.4 30s Cutting planes: Gomory: 1 MIR: 2 Zero half: 12 Explored 15552 nodes (243412 simplex iterations) in 33.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 39), (11, 59), (12, 66), (12, 67), (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, 51), (26, 56), (29, 62), (29, 63), (32, 40), (32, 56), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (50, 57), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(36, 54), (6, 49), (6, 30), (8, 54), (9, 36), (9, 47), (47, 53), (49, 75), (28, 46), (28, 53), (30, 46), (31, 75)] Optimize a model with 423 rows, 2850 columns and 156764 nonzeros Presolve time: 0.11s Presolved: 423 rows, 2850 columns, 156764 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 97 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 103 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 1s 0 0 696.56570 0 104 719.00000 696.56570 3.12% - 2s 0 0 696.57874 0 107 719.00000 696.57874 3.12% - 2s 0 0 696.57874 0 108 719.00000 696.57874 3.12% - 2s 0 0 696.57874 0 109 719.00000 696.57874 3.12% - 2s 0 0 696.62647 0 108 719.00000 696.62647 3.11% - 2s 0 0 696.63163 0 109 719.00000 696.63163 3.11% - 2s 0 0 696.63589 0 111 719.00000 696.63589 3.11% - 2s 0 0 696.65246 0 111 719.00000 696.65246 3.11% - 2s 0 0 696.65246 0 113 719.00000 696.65246 3.11% - 2s 0 0 696.66246 0 109 719.00000 696.66246 3.11% - 2s 0 0 696.66246 0 111 719.00000 696.66246 3.11% - 2s 0 0 696.66372 0 108 719.00000 696.66372 3.11% - 2s 0 0 696.66372 0 110 719.00000 696.66372 3.11% - 3s 0 2 696.67927 0 110 719.00000 696.67927 3.10% - 3s * 132 117 86 715.0000000 697.04647 2.51% 21.9 4s * 210 171 55 713.0000000 697.39026 2.19% 20.9 4s * 250 143 28 709.0000000 697.68289 1.60% 21.2 4s 527 316 706.42857 23 56 709.00000 698.73607 1.45% 20.6 5s H 643 366 708.0000000 698.96933 1.28% 21.1 9s 1001 464 703.60914 35 68 708.00000 699.28645 1.23% 20.0 10s * 1154 453 41 707.0000000 699.81354 1.02% 19.7 10s 3395 925 702.66443 21 85 707.00000 701.92784 0.72% 18.2 15s 5526 1184 705.75000 31 46 707.00000 702.75027 0.60% 17.6 20s 8186 1162 705.37889 24 75 707.00000 703.48276 0.50% 17.2 25s 11148 785 705.03333 24 81 707.00000 704.28827 0.38% 16.5 30s Cutting planes: Gomory: 10 MIR: 1 Zero half: 4 Explored 12935 nodes (207503 simplex iterations) in 32.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (32, 73), (33, 45), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 65), (70, 72)] Optimize a model with 424 rows, 2850 columns and 157892 nonzeros Presolve time: 0.11s Presolved: 424 rows, 2850 columns, 157892 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 239 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 717.0000000 695.43817 3.01% - 0s 0 0 696.08522 0 97 717.00000 696.08522 2.92% - 0s 0 0 696.08522 0 91 717.00000 696.08522 2.92% - 1s 0 0 696.24980 0 97 717.00000 696.24980 2.89% - 1s 0 0 696.24980 0 99 717.00000 696.24980 2.89% - 1s 0 0 696.27093 0 100 717.00000 696.27093 2.89% - 1s 0 0 696.27598 0 98 717.00000 696.27598 2.89% - 1s 0 0 696.29384 0 103 717.00000 696.29384 2.89% - 1s 0 0 696.35672 0 103 717.00000 696.35672 2.88% - 1s 0 0 696.37839 0 102 717.00000 696.37839 2.88% - 1s 0 0 696.41119 0 104 717.00000 696.41119 2.87% - 1s 0 0 696.56681 0 104 717.00000 696.56681 2.85% - 1s 0 0 696.57901 0 107 717.00000 696.57901 2.85% - 1s 0 0 696.57901 0 108 717.00000 696.57901 2.85% - 2s 0 0 696.57901 0 109 717.00000 696.57901 2.85% - 2s 0 0 696.62655 0 108 717.00000 696.62655 2.84% - 2s 0 0 696.63163 0 109 717.00000 696.63163 2.84% - 2s 0 0 696.63596 0 109 717.00000 696.63596 2.84% - 2s 0 0 696.64890 0 112 717.00000 696.64890 2.84% - 2s 0 0 696.65742 0 109 717.00000 696.65742 2.84% - 2s 0 0 696.66294 0 113 717.00000 696.66294 2.84% - 2s 0 0 696.67526 0 107 717.00000 696.67526 2.83% - 2s 0 0 696.68001 0 105 717.00000 696.68001 2.83% - 2s 0 0 696.68001 0 106 717.00000 696.68001 2.83% - 2s 0 0 696.68880 0 108 717.00000 696.68880 2.83% - 2s 0 0 696.69140 0 109 717.00000 696.69140 2.83% - 2s 0 0 696.69463 0 112 717.00000 696.69463 2.83% - 2s 0 2 696.69516 0 112 717.00000 696.69516 2.83% - 3s * 300 232 52 714.0000000 697.69463 2.28% 20.3 4s 571 461 712.14655 22 58 714.00000 698.32800 2.19% 21.2 5s H 600 222 708.0000000 698.32800 1.37% 20.7 5s * 758 253 50 707.0000000 698.32800 1.23% 21.7 7s 1553 503 705.52071 31 61 707.00000 700.26897 0.95% 20.7 10s 3846 1398 702.57742 24 82 707.00000 701.54146 0.77% 18.8 15s 5980 2021 702.89483 26 67 707.00000 702.21174 0.68% 18.0 20s 8236 2565 704.56497 29 66 707.00000 702.65385 0.61% 17.5 25s 10603 2981 703.80488 25 88 707.00000 703.02167 0.56% 17.1 30s 13451 3205 704.89113 31 68 707.00000 703.38734 0.51% 16.8 35s 16281 3240 705.90276 31 65 707.00000 703.72868 0.46% 16.6 40s 19830 2870 705.12821 34 73 707.00000 704.13971 0.40% 16.3 45s 23829 1936 cutoff 30 707.00000 704.62500 0.34% 15.9 50s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Mod-K: 1 Explored 27216 nodes (417521 simplex iterations) in 54.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (7, 34), (9, 20), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 58), (17, 34), (17, 64), (19, 25), (19, 51), (20, 54), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 75), (32, 56), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (47, 53), (50, 57), (55, 58), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 425 rows, 2850 columns and 159218 nonzeros Presolve time: 0.11s Presolved: 425 rows, 2850 columns, 159218 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 232 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 96 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27711 0 96 719.00000 696.27711 3.16% - 1s 0 0 696.28777 0 103 719.00000 696.28777 3.16% - 1s 0 0 696.32660 0 104 719.00000 696.32660 3.15% - 1s 0 0 696.45256 0 100 719.00000 696.45256 3.14% - 1s 0 0 696.45275 0 102 719.00000 696.45275 3.14% - 1s 0 0 696.48103 0 106 719.00000 696.48103 3.13% - 2s 0 0 696.55286 0 102 719.00000 696.55286 3.12% - 2s 0 0 696.60598 0 107 719.00000 696.60598 3.11% - 2s 0 0 696.63039 0 103 719.00000 696.63039 3.11% - 2s 0 0 696.63039 0 105 719.00000 696.63039 3.11% - 2s 0 0 696.63759 0 103 719.00000 696.63759 3.11% - 2s 0 0 696.63759 0 105 719.00000 696.63759 3.11% - 2s 0 0 696.65709 0 107 719.00000 696.65709 3.11% - 2s 0 0 696.65821 0 109 719.00000 696.65821 3.11% - 2s 0 0 696.65837 0 106 719.00000 696.65837 3.11% - 2s 0 0 696.65880 0 108 719.00000 696.65880 3.11% - 3s 0 0 696.65880 0 110 719.00000 696.65880 3.11% - 3s 0 0 696.65880 0 110 719.00000 696.65880 3.11% - 3s 0 2 696.65966 0 110 719.00000 696.65966 3.11% - 3s * 89 87 56 715.0000000 697.65118 2.43% 24.2 4s * 94 83 58 714.0000000 697.65118 2.29% 23.6 4s H 451 281 711.0000000 697.86011 1.85% 16.8 4s 469 301 705.50554 24 70 711.00000 697.86011 1.85% 17.0 5s H 667 405 710.0000000 698.49014 1.62% 17.8 8s * 901 428 54 709.0000000 699.11072 1.39% 18.2 9s 1071 471 cutoff 44 709.00000 699.57076 1.33% 18.0 10s H 1994 739 708.0000000 700.98190 0.99% 17.9 11s H 3276 1139 707.0000000 701.60606 0.76% 17.5 14s 3401 1169 705.12530 35 96 707.00000 701.71325 0.75% 17.5 15s 4313 1245 703.59311 36 76 707.00000 701.71325 0.75% 18.1 20s 7022 971 703.77065 42 84 707.00000 702.33333 0.66% 17.7 25s 9397 1067 705.54087 38 75 707.00000 703.28418 0.53% 17.4 30s 12615 532 705.41600 41 85 707.00000 704.48934 0.36% 16.9 35s Cutting planes: Gomory: 5 MIR: 1 Zero half: 3 Explored 13689 nodes (226670 simplex iterations) in 36.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (25, 50), (26, 51), (26, 56), (28, 58), (30, 46), (32, 56), (34, 64), (37, 48), (37, 70), (39, 66), (61, 71), (61, 72), (66, 67), (70, 72)] 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)] Optimize a model with 427 rows, 2850 columns and 159953 nonzeros Presolve time: 0.11s Presolved: 427 rows, 2850 columns, 159953 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 232 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 714.0000000 695.43817 2.60% - 0s 0 0 696.08500 0 96 714.00000 696.08500 2.51% - 0s 0 0 696.08500 0 91 714.00000 696.08500 2.51% - 0s 0 0 696.24980 0 97 714.00000 696.24980 2.49% - 1s 0 0 696.24980 0 99 714.00000 696.24980 2.49% - 1s 0 0 696.27093 0 100 714.00000 696.27093 2.48% - 1s 0 0 696.27711 0 96 714.00000 696.27711 2.48% - 1s 0 0 696.28777 0 103 714.00000 696.28777 2.48% - 1s 0 0 696.32806 0 103 714.00000 696.32806 2.48% - 1s 0 0 696.44714 0 99 714.00000 696.44714 2.46% - 1s 0 0 696.45256 0 101 714.00000 696.45256 2.46% - 1s 0 0 696.59160 0 100 714.00000 696.59160 2.44% - 1s 0 0 696.60049 0 102 714.00000 696.60049 2.44% - 1s 0 0 696.60049 0 102 714.00000 696.60049 2.44% - 1s 0 0 696.60049 0 104 714.00000 696.60049 2.44% - 1s 0 0 696.60841 0 103 714.00000 696.60841 2.44% - 2s 0 0 696.60841 0 105 714.00000 696.60841 2.44% - 2s 0 0 696.60841 0 104 714.00000 696.60841 2.44% - 2s 0 0 696.60841 0 106 714.00000 696.60841 2.44% - 2s 0 0 696.64265 0 101 714.00000 696.64265 2.43% - 2s 0 0 696.64265 0 103 714.00000 696.64265 2.43% - 2s 0 0 696.64265 0 102 714.00000 696.64265 2.43% - 2s 0 0 696.64265 0 104 714.00000 696.64265 2.43% - 2s 0 0 696.64418 0 108 714.00000 696.64418 2.43% - 2s H 0 0 710.0000000 696.64418 1.88% - 3s 0 2 696.65351 0 108 710.00000 696.65351 1.88% - 3s H 223 164 709.0000000 698.20901 1.52% 20.4 3s 601 378 706.30000 15 96 709.00000 699.08333 1.40% 19.6 5s * 762 404 57 708.0000000 699.08333 1.26% 20.8 6s H 1008 410 707.0000000 699.71637 1.03% 21.1 7s 2459 760 704.62626 30 84 707.00000 701.60761 0.76% 19.0 10s 4569 1299 705.91304 24 76 707.00000 702.63214 0.62% 18.3 15s 6860 1611 704.83019 24 65 707.00000 703.19682 0.54% 17.6 20s 9225 1704 705.21186 24 76 707.00000 703.67030 0.47% 17.1 25s 12159 1439 705.83333 26 62 707.00000 704.25243 0.39% 16.7 30s 15230 304 705.62500 23 64 707.00000 705.30407 0.24% 16.0 35s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 15615 nodes (247491 simplex iterations) in 35.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 38), (6, 49), (7, 34), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 44), (24, 57), (29, 62), (29, 63), (30, 46), (30, 49), (34, 74), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (17, 64), (17, 52), (50, 64), (25, 50), (26, 51), (26, 56)] Optimize a model with 429 rows, 2850 columns and 160475 nonzeros Presolve time: 0.11s Presolved: 429 rows, 2850 columns, 160475 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 232 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 96 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27711 0 96 719.00000 696.27711 3.16% - 1s 0 0 696.28777 0 103 719.00000 696.28777 3.16% - 1s 0 0 696.32660 0 104 719.00000 696.32660 3.15% - 1s 0 0 696.45256 0 100 719.00000 696.45256 3.14% - 1s 0 0 696.45275 0 102 719.00000 696.45275 3.14% - 1s 0 0 696.48103 0 106 719.00000 696.48103 3.13% - 2s 0 0 696.55286 0 102 719.00000 696.55286 3.12% - 2s 0 0 696.60598 0 107 719.00000 696.60598 3.11% - 2s 0 0 696.63039 0 103 719.00000 696.63039 3.11% - 2s 0 0 696.63039 0 105 719.00000 696.63039 3.11% - 2s 0 0 696.63759 0 103 719.00000 696.63759 3.11% - 2s 0 0 696.63759 0 105 719.00000 696.63759 3.11% - 2s 0 0 696.65709 0 107 719.00000 696.65709 3.11% - 2s 0 0 696.65821 0 109 719.00000 696.65821 3.11% - 2s 0 0 696.65837 0 106 719.00000 696.65837 3.11% - 3s 0 0 696.65880 0 108 719.00000 696.65880 3.11% - 3s 0 0 696.65880 0 110 719.00000 696.65880 3.11% - 3s 0 2 696.65966 0 110 719.00000 696.65966 3.11% - 3s * 89 87 56 715.0000000 697.65118 2.43% 24.2 4s * 94 83 58 714.0000000 697.65118 2.29% 23.6 4s H 451 282 711.0000000 697.86011 1.85% 16.8 4s 455 288 702.81818 15 64 711.00000 697.86011 1.85% 16.9 5s * 697 415 53 709.0000000 698.49014 1.48% 18.5 9s H 993 440 708.0000000 699.43841 1.21% 17.8 9s 1035 448 705.89006 25 79 708.00000 699.48116 1.20% 17.7 10s * 3213 1072 35 707.0000000 701.66053 0.76% 17.0 14s 3306 1099 705.37229 45 91 707.00000 701.68272 0.75% 17.0 15s 4443 1171 705.42857 44 54 707.00000 701.68272 0.75% 17.6 20s 7191 1012 704.20053 38 73 707.00000 702.51562 0.63% 17.3 25s 10039 997 705.14706 38 70 707.00000 703.53125 0.49% 17.0 30s 13058 221 705.91176 38 74 707.00000 704.94913 0.29% 16.5 35s Cutting planes: Gomory: 5 MIR: 1 Zero half: 3 Explored 13396 nodes (219493 simplex iterations) in 35.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (4, 45), (7, 34), (17, 50), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 62), (29, 63), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(16, 58), (3, 75), (37, 70), (37, 48), (70, 72), (14, 58), (14, 55), (8, 20), (20, 55), (21, 71), (21, 38), (22, 75), (22, 48), (6, 16), (6, 38), (61, 71), (61, 72)] adding cut for [(36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] adding cut for [(32, 73), (32, 56), (40, 73), (10, 40), (10, 26), (26, 56)] Optimize a model with 433 rows, 2850 columns and 160962 nonzeros Presolve time: 0.11s Presolved: 433 rows, 2850 columns, 160962 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 232 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 717.0000000 695.43817 3.01% - 0s 0 0 696.08500 0 96 717.00000 696.08500 2.92% - 0s 0 0 696.08500 0 91 717.00000 696.08500 2.92% - 1s 0 0 696.24980 0 97 717.00000 696.24980 2.89% - 1s 0 0 696.24980 0 99 717.00000 696.24980 2.89% - 1s 0 0 696.27093 0 100 717.00000 696.27093 2.89% - 1s 0 0 696.27714 0 98 717.00000 696.27714 2.89% - 1s 0 0 696.28775 0 102 717.00000 696.28775 2.89% - 1s 0 0 696.44188 0 102 717.00000 696.44188 2.87% - 1s 0 0 696.61872 0 101 717.00000 696.61872 2.84% - 1s 0 0 696.62165 0 99 717.00000 696.62165 2.84% - 1s 0 0 696.62165 0 101 717.00000 696.62165 2.84% - 1s 0 0 696.62619 0 110 717.00000 696.62619 2.84% - 2s 0 0 696.62868 0 104 717.00000 696.62868 2.84% - 2s 0 0 696.62868 0 106 717.00000 696.62868 2.84% - 2s 0 0 696.63089 0 105 717.00000 696.63089 2.84% - 2s 0 0 696.63089 0 106 717.00000 696.63089 2.84% - 2s 0 0 696.63089 0 106 717.00000 696.63089 2.84% - 2s 0 2 696.64232 0 106 717.00000 696.64232 2.84% - 2s * 107 100 63 716.0000000 697.00346 2.65% 21.4 3s * 173 134 48 712.0000000 697.15915 2.08% 20.3 3s * 178 125 52 711.0000000 697.15915 1.95% 19.9 3s * 179 114 52 710.0000000 697.15915 1.81% 19.8 3s * 355 232 40 709.0000000 697.90218 1.57% 19.3 4s H 600 281 707.0000000 698.57981 1.19% 19.2 4s 601 281 704.20571 17 96 707.00000 698.57981 1.19% 19.2 5s 1989 685 703.57384 24 82 707.00000 700.97469 0.85% 18.9 10s 4109 1282 705.52649 31 77 707.00000 702.10915 0.69% 18.2 15s 6392 1713 703.60000 24 67 707.00000 702.78534 0.60% 17.6 20s 8760 1871 704.59402 21 69 707.00000 703.29422 0.52% 17.2 25s 11414 1782 705.11773 30 79 707.00000 703.80219 0.45% 17.0 30s 14378 1363 705.36384 29 80 707.00000 704.38521 0.37% 16.5 35s Cutting planes: Gomory: 9 MIR: 2 Zero half: 3 Mod-K: 2 Explored 17139 nodes (272429 simplex iterations) in 39.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 45), (9, 36), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (19, 51), (19, 56), (26, 56), (32, 59), (33, 45), (33, 51), (35, 47), (36, 54), (39, 66), (40, 73), (59, 73), (60, 67)] adding cut for [(2, 64), (2, 44), (42, 43), (42, 44), (43, 65), (34, 74), (17, 50), (17, 52), (25, 50), (25, 57), (24, 64), (24, 57), (29, 62), (29, 63), (23, 65), (23, 62), (63, 74)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 58), (8, 20), (20, 55), (21, 71), (21, 38), (22, 75), (22, 48), (61, 71), (61, 72)] Optimize a model with 436 rows, 2850 columns and 161527 nonzeros Presolve time: 0.11s Presolved: 436 rows, 2850 columns, 161527 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 232 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 96 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27711 0 96 719.00000 696.27711 3.16% - 1s 0 0 696.28777 0 103 719.00000 696.28777 3.16% - 1s 0 0 696.32856 0 104 719.00000 696.32856 3.15% - 1s 0 0 696.44714 0 99 719.00000 696.44714 3.14% - 1s 0 0 696.45256 0 101 719.00000 696.45256 3.14% - 1s 0 0 696.59160 0 100 719.00000 696.59160 3.12% - 1s 0 0 696.60049 0 102 719.00000 696.60049 3.12% - 2s 0 0 696.60049 0 102 719.00000 696.60049 3.12% - 2s 0 0 696.60049 0 104 719.00000 696.60049 3.12% - 2s 0 0 696.60841 0 103 719.00000 696.60841 3.11% - 2s 0 0 696.60841 0 105 719.00000 696.60841 3.11% - 2s 0 0 696.60841 0 104 719.00000 696.60841 3.11% - 2s 0 0 696.60841 0 106 719.00000 696.60841 3.11% - 2s 0 0 696.64265 0 102 719.00000 696.64265 3.11% - 2s 0 0 696.64265 0 104 719.00000 696.64265 3.11% - 2s 0 0 696.64265 0 102 719.00000 696.64265 3.11% - 3s 0 0 696.64265 0 104 719.00000 696.64265 3.11% - 3s 0 0 696.64418 0 108 719.00000 696.64418 3.11% - 3s 0 2 696.65326 0 108 719.00000 696.65326 3.11% - 3s * 94 84 59 714.0000000 697.76100 2.27% 25.5 4s * 302 176 47 709.0000000 697.91967 1.56% 19.6 4s 454 271 706.30769 17 63 709.00000 698.56661 1.47% 20.5 5s H 600 313 708.0000000 698.96978 1.28% 20.0 5s 836 375 701.24979 17 84 708.00000 698.96978 1.28% 21.0 10s 2992 1024 702.81676 21 85 708.00000 701.60992 0.90% 18.9 15s * 4165 1229 26 707.0000000 702.17647 0.68% 18.7 17s 5443 1339 cutoff 25 707.00000 702.63740 0.62% 18.3 20s 7723 1325 704.72727 23 73 707.00000 703.34068 0.52% 17.9 25s 10323 995 705.04651 23 69 707.00000 704.12405 0.41% 17.4 30s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Explored 12675 nodes (211108 simplex iterations) in 33.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 34), (3, 63), (31, 75), (43, 65), (43, 44), (34, 64), (29, 62), (50, 64), (22, 62), (22, 75), (24, 57), (24, 25), (25, 50), (42, 44), (42, 57), (23, 65), (23, 29), (63, 74)] adding cut for [(4, 45), (4, 17), (39, 66), (8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (45, 51), (15, 54), (15, 60), (17, 52), (19, 51), (19, 56), (36, 54), (26, 32), (26, 56), (60, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 47), (9, 20), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] Optimize a model with 439 rows, 2850 columns and 162059 nonzeros Presolve time: 0.11s Presolved: 439 rows, 2850 columns, 162059 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 239 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 103 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 1s 0 0 696.56524 0 106 719.00000 696.56524 3.12% - 2s 0 0 696.57901 0 107 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 108 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 109 719.00000 696.57901 3.12% - 2s 0 0 696.62655 0 108 719.00000 696.62655 3.11% - 2s 0 0 696.63163 0 109 719.00000 696.63163 3.11% - 2s 0 0 696.63589 0 111 719.00000 696.63589 3.11% - 2s 0 0 696.65290 0 112 719.00000 696.65290 3.11% - 2s 0 0 696.65446 0 112 719.00000 696.65446 3.11% - 2s 0 0 696.68581 0 102 719.00000 696.68581 3.10% - 2s 0 0 696.68581 0 103 719.00000 696.68581 3.10% - 2s 0 0 696.69606 0 108 719.00000 696.69606 3.10% - 3s 0 0 696.70092 0 104 719.00000 696.70092 3.10% - 3s 0 0 696.70185 0 105 719.00000 696.70185 3.10% - 3s 0 0 696.70445 0 110 719.00000 696.70445 3.10% - 3s 0 2 696.70703 0 110 719.00000 696.70703 3.10% - 3s * 141 124 88 716.0000000 697.18141 2.63% 23.9 4s * 202 111 52 708.0000000 697.95912 1.42% 21.9 4s 463 270 cutoff 17 708.00000 698.66783 1.32% 19.9 5s 1427 578 702.45528 24 85 708.00000 700.09061 1.12% 19.9 10s * 2440 913 27 707.0000000 701.02617 0.84% 19.1 12s 3415 1231 703.76153 28 81 707.00000 701.57295 0.77% 18.6 15s 5602 1807 705.41089 29 74 707.00000 702.43968 0.65% 17.9 20s 7775 2210 705.68067 19 71 707.00000 702.92016 0.58% 17.4 25s 10098 2420 705.02179 25 80 707.00000 703.33207 0.52% 17.0 30s 12897 2404 cutoff 35 707.00000 703.87654 0.44% 16.6 35s 15443 2030 705.55116 38 69 707.00000 704.32014 0.38% 16.4 40s 19170 108 cutoff 30 707.00000 705.74809 0.18% 15.6 45s Cutting planes: Gomory: 9 MIR: 1 Zero half: 3 Mod-K: 2 Explored 19282 nodes (300133 simplex iterations) in 45.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 47), (9, 55), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 75), (32, 56), (35, 53), (36, 54), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 440 rows, 2850 columns and 163140 nonzeros Presolve time: 0.11s Presolved: 440 rows, 2850 columns, 163140 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 253 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 725.0000000 695.43817 4.08% - 0s H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 98 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 103 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 2s 0 0 696.56524 0 106 719.00000 696.56524 3.12% - 2s 0 0 696.57901 0 107 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 108 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 109 719.00000 696.57901 3.12% - 2s 0 0 696.62655 0 108 719.00000 696.62655 3.11% - 2s 0 0 696.63163 0 109 719.00000 696.63163 3.11% - 2s 0 0 696.63589 0 111 719.00000 696.63589 3.11% - 2s 0 0 696.65290 0 112 719.00000 696.65290 3.11% - 2s 0 0 696.65446 0 112 719.00000 696.65446 3.11% - 2s 0 0 696.68581 0 102 719.00000 696.68581 3.10% - 2s 0 0 696.68581 0 103 719.00000 696.68581 3.10% - 2s 0 0 696.69669 0 108 719.00000 696.69669 3.10% - 3s 0 0 696.70092 0 104 719.00000 696.70092 3.10% - 3s 0 0 696.70185 0 105 719.00000 696.70185 3.10% - 3s 0 0 696.70445 0 108 719.00000 696.70445 3.10% - 3s 0 0 696.70445 0 110 719.00000 696.70445 3.10% - 3s 0 2 696.70703 0 110 719.00000 696.70703 3.10% - 3s * 96 92 58 714.0000000 698.27582 2.20% 28.1 4s * 100 78 60 712.0000000 698.27582 1.93% 27.2 4s H 128 84 710.0000000 698.35043 1.64% 25.8 4s 323 222 703.50000 14 85 710.00000 698.58793 1.61% 20.3 5s H 600 373 709.0000000 699.05592 1.40% 17.9 5s H 616 363 708.0000000 699.05592 1.26% 18.2 7s 1231 543 704.20085 23 81 708.00000 699.84453 1.15% 20.6 10s * 1669 551 26 707.0000000 700.29345 0.95% 19.9 10s 3246 1102 cutoff 23 707.00000 701.69243 0.75% 18.6 15s 5288 1581 705.76772 26 69 707.00000 702.45333 0.64% 18.0 20s 7604 1779 705.75796 22 81 707.00000 703.03704 0.56% 17.7 25s 9750 1804 704.55212 20 78 707.00000 703.42827 0.51% 17.7 30s 12421 1546 705.18868 27 65 707.00000 703.96875 0.43% 17.4 35s 15009 891 705.95763 23 75 707.00000 704.66110 0.33% 17.1 40s Cutting planes: Gomory: 9 MIR: 2 Zero half: 6 Explored 16416 nodes (273277 simplex iterations) in 42.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 41), (4, 45), (9, 47), (9, 55), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (24, 57), (24, 64), (25, 50), (33, 45), (33, 51), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (66, 67), (36, 54), (39, 66), (39, 59), (8, 54), (10, 40), (10, 26), (11, 32), (11, 59), (12, 67), (12, 60), (13, 73), (15, 20), (15, 60), (40, 73), (20, 36), (26, 56)] Optimize a model with 442 rows, 2850 columns and 163872 nonzeros Presolve time: 0.11s Presolved: 442 rows, 2850 columns, 163872 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 96 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27714 0 98 719.00000 696.27714 3.16% - 1s 0 0 696.28775 0 103 719.00000 696.28775 3.16% - 1s 0 0 696.43172 0 101 719.00000 696.43172 3.14% - 1s 0 0 696.61694 0 102 719.00000 696.61694 3.11% - 1s 0 0 696.62178 0 106 719.00000 696.62178 3.11% - 1s 0 0 696.62479 0 101 719.00000 696.62479 3.11% - 2s 0 0 696.62479 0 103 719.00000 696.62479 3.11% - 2s 0 0 696.63023 0 103 719.00000 696.63023 3.11% - 2s 0 0 696.63091 0 108 719.00000 696.63091 3.11% - 2s 0 0 696.65192 0 101 719.00000 696.65192 3.11% - 2s 0 0 696.65834 0 104 719.00000 696.65834 3.11% - 2s 0 0 696.65903 0 109 719.00000 696.65903 3.11% - 2s 0 0 696.67511 0 105 719.00000 696.67511 3.10% - 2s 0 0 696.67511 0 107 719.00000 696.67511 3.10% - 2s 0 0 696.68087 0 104 719.00000 696.68087 3.10% - 2s 0 0 696.68125 0 106 719.00000 696.68125 3.10% - 2s 0 0 696.68513 0 108 719.00000 696.68513 3.10% - 3s 0 0 696.68513 0 110 719.00000 696.68513 3.10% - 3s 0 0 696.68876 0 108 719.00000 696.68876 3.10% - 3s 0 0 696.68876 0 110 719.00000 696.68876 3.10% - 3s 0 0 696.69533 0 110 719.00000 696.69533 3.10% - 3s 0 0 696.69744 0 113 719.00000 696.69744 3.10% - 3s 0 0 696.70283 0 112 719.00000 696.70283 3.10% - 3s 0 0 696.70349 0 111 719.00000 696.70349 3.10% - 3s 0 0 696.70485 0 112 719.00000 696.70485 3.10% - 3s 0 0 696.70485 0 114 719.00000 696.70485 3.10% - 3s 0 0 696.70485 0 113 719.00000 696.70485 3.10% - 3s 0 2 696.70521 0 113 719.00000 696.70521 3.10% - 4s 50 52 706.00000 29 59 719.00000 697.04647 3.05% 30.5 5s * 119 106 76 717.0000000 697.04647 2.78% 21.6 5s * 394 251 56 712.0000000 698.31693 1.92% 19.4 5s * 524 300 33 710.0000000 698.60480 1.60% 19.4 6s * 605 289 17 709.0000000 699.08372 1.40% 19.2 6s 1050 512 705.59524 34 61 709.00000 699.24684 1.38% 21.4 10s * 2008 760 38 708.0000000 700.45455 1.07% 20.1 12s H 2941 1045 707.0000000 701.43664 0.79% 19.5 14s 3172 1119 704.29595 25 67 707.00000 701.50826 0.78% 19.5 15s 5295 1616 703.09615 31 78 707.00000 702.39823 0.65% 18.7 20s 7200 1903 704.70930 24 83 707.00000 702.90226 0.58% 18.3 25s 9389 2085 704.21324 29 75 707.00000 703.37888 0.51% 17.9 30s 11964 1997 705.44044 31 64 707.00000 703.87052 0.44% 17.4 35s 15176 1417 705.53465 30 66 707.00000 704.52250 0.35% 16.9 40s Cutting planes: Gomory: 7 MIR: 2 Zero half: 3 Explored 17652 nodes (287337 simplex iterations) in 44.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (9, 20), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 25), (24, 57), (25, 50), (29, 62), (29, 63), (34, 74), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (66, 67), (36, 54), (39, 66), (8, 36), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (40, 73), (59, 73)] Optimize a model with 444 rows, 2850 columns and 164491 nonzeros Presolve time: 0.11s Presolved: 444 rows, 2850 columns, 164491 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08500 0 97 716.00000 696.08500 2.78% - 0s 0 0 696.08500 0 91 716.00000 696.08500 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27595 0 96 716.00000 696.27595 2.75% - 1s 0 0 696.28578 0 102 716.00000 696.28578 2.75% - 1s 0 0 696.32354 0 103 716.00000 696.32354 2.75% - 1s 0 0 696.32354 0 105 716.00000 696.32354 2.75% - 1s 0 0 696.41232 0 104 716.00000 696.41232 2.74% - 1s 0 0 696.48414 0 104 716.00000 696.48414 2.73% - 1s 0 0 696.52154 0 100 716.00000 696.52154 2.72% - 2s 0 0 696.52154 0 101 716.00000 696.52154 2.72% - 2s 0 0 696.52471 0 103 716.00000 696.52471 2.72% - 2s 0 0 696.52471 0 104 716.00000 696.52471 2.72% - 2s 0 0 696.60861 0 104 716.00000 696.60861 2.71% - 2s 0 0 696.61709 0 107 716.00000 696.61709 2.71% - 2s 0 0 696.61709 0 109 716.00000 696.61709 2.71% - 2s 0 0 696.62333 0 107 716.00000 696.62333 2.71% - 2s 0 0 696.63144 0 110 716.00000 696.63144 2.71% - 2s 0 0 696.68152 0 103 716.00000 696.68152 2.70% - 2s 0 0 696.68667 0 106 716.00000 696.68667 2.70% - 2s 0 0 696.68667 0 107 716.00000 696.68667 2.70% - 2s 0 0 696.68833 0 110 716.00000 696.68833 2.70% - 3s 0 0 696.69178 0 109 716.00000 696.69178 2.70% - 3s 0 0 696.69178 0 110 716.00000 696.69178 2.70% - 3s 0 0 696.70246 0 106 716.00000 696.70246 2.70% - 3s 0 0 696.70512 0 108 716.00000 696.70512 2.69% - 3s 0 0 696.70512 0 109 716.00000 696.70512 2.69% - 3s 0 0 696.70512 0 110 716.00000 696.70512 2.69% - 3s H 0 0 709.0000000 696.70512 1.73% - 4s 0 2 696.73401 0 110 709.00000 696.73401 1.73% - 4s 293 225 701.36667 7 72 709.00000 698.13280 1.53% 19.1 5s * 1252 560 44 708.0000000 699.80115 1.16% 20.4 9s 1274 572 706.80612 30 74 708.00000 699.85644 1.15% 20.6 10s 3422 1349 706.26501 26 71 708.00000 701.60430 0.90% 19.1 15s 5357 2124 703.73133 21 72 708.00000 702.28310 0.81% 18.6 20s 7755 2947 703.88211 24 75 708.00000 702.74802 0.74% 18.0 25s * 8575 2760 36 707.0000000 702.90572 0.58% 17.8 26s 10047 2899 704.58088 26 84 707.00000 703.25000 0.53% 17.6 30s 12698 2915 cutoff 23 707.00000 703.75000 0.46% 17.3 35s 15462 2679 cutoff 27 707.00000 704.21192 0.39% 17.0 40s 18193 1968 705.60768 26 71 707.00000 704.71368 0.32% 16.7 45s 21074 478 705.91798 31 71 707.00000 705.55392 0.20% 16.0 50s Cutting planes: Gomory: 7 MIR: 2 Zero half: 3 Mod-K: 1 Explored 21609 nodes (340512 simplex iterations) in 50.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (8, 36), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (29, 63), (29, 75), (31, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(34, 64), (3, 34), (4, 45), (4, 17), (33, 45), (32, 73), (32, 56), (40, 73), (10, 33), (10, 40), (50, 57), (19, 51), (19, 25), (17, 52), (25, 50), (24, 64), (24, 57), (26, 51), (26, 56)] adding cut for [(35, 47), (39, 66), (9, 54), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] Optimize a model with 447 rows, 2850 columns and 165182 nonzeros Presolve time: 0.11s Presolved: 447 rows, 2850 columns, 165182 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 262 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 712.0000000 695.43817 2.33% - 0s 0 0 696.08500 0 96 712.00000 696.08500 2.24% - 0s 0 0 696.08500 0 91 712.00000 696.08500 2.24% - 1s 0 0 696.24980 0 97 712.00000 696.24980 2.21% - 1s 0 0 696.24980 0 99 712.00000 696.24980 2.21% - 1s 0 0 696.27433 0 98 712.00000 696.27433 2.21% - 1s 0 0 696.28814 0 98 712.00000 696.28814 2.21% - 1s 0 0 696.30387 0 103 712.00000 696.30387 2.20% - 1s 0 0 696.35183 0 103 712.00000 696.35183 2.20% - 1s 0 0 696.53175 0 99 712.00000 696.53175 2.17% - 1s 0 0 696.53686 0 100 712.00000 696.53686 2.17% - 1s 0 0 696.53686 0 101 712.00000 696.53686 2.17% - 1s 0 0 696.53686 0 102 712.00000 696.53686 2.17% - 1s 0 0 696.54311 0 103 712.00000 696.54311 2.17% - 1s 0 0 696.54311 0 106 712.00000 696.54311 2.17% - 1s 0 0 696.61349 0 94 712.00000 696.61349 2.16% - 2s 0 0 696.61349 0 96 712.00000 696.61349 2.16% - 2s 0 0 696.61349 0 96 712.00000 696.61349 2.16% - 2s 0 0 696.61349 0 98 712.00000 696.61349 2.16% - 2s 0 2 696.62019 0 98 712.00000 696.62019 2.16% - 3s * 48 42 35 711.0000000 697.71105 1.87% 19.5 3s H 72 57 709.0000000 697.97526 1.55% 19.5 4s * 275 174 21 708.0000000 698.55629 1.33% 20.5 4s 372 229 703.19444 9 62 708.00000 698.94994 1.28% 20.1 5s * 645 361 30 707.0000000 699.77359 1.02% 20.9 7s 1513 440 702.85885 17 86 707.00000 700.63684 0.90% 19.8 10s 3664 836 704.95693 24 70 707.00000 702.25000 0.67% 18.8 15s 6246 916 705.25248 22 66 707.00000 703.28846 0.52% 18.0 20s 8813 655 cutoff 25 707.00000 704.06817 0.41% 17.4 25s Cutting planes: MIR: 2 Zero half: 8 Explored 10646 nodes (179011 simplex iterations) in 27.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (4, 45), (4, 52), (10, 33), (10, 40), (17, 50), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (33, 45), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65)] adding cut for [(3, 74), (8, 36), (14, 55), (14, 58), (16, 38), (16, 58), (20, 36), (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), (63, 74), (70, 72)] adding cut for [(39, 66), (9, 54), (9, 47), (11, 39), (11, 59), (12, 66), (12, 67), (13, 59), (13, 41), (15, 54), (15, 60), (60, 67)] Optimize a model with 450 rows, 2850 columns and 165789 nonzeros Presolve time: 0.11s Presolved: 450 rows, 2850 columns, 165789 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 249 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08513 0 98 719.00000 696.08513 3.19% - 0s 0 0 696.08513 0 91 719.00000 696.08513 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27711 0 96 719.00000 696.27711 3.16% - 1s 0 0 696.28777 0 103 719.00000 696.28777 3.16% - 1s 0 0 696.32806 0 103 719.00000 696.32806 3.15% - 1s 0 0 696.44714 0 99 719.00000 696.44714 3.14% - 1s 0 0 696.45256 0 101 719.00000 696.45256 3.14% - 1s 0 0 696.59160 0 100 719.00000 696.59160 3.12% - 2s 0 0 696.59757 0 105 719.00000 696.59757 3.12% - 2s 0 0 696.60049 0 102 719.00000 696.60049 3.12% - 2s 0 0 696.60049 0 104 719.00000 696.60049 3.12% - 2s 0 0 696.60852 0 103 719.00000 696.60852 3.11% - 2s 0 0 696.60852 0 104 719.00000 696.60852 3.11% - 2s 0 0 696.60852 0 105 719.00000 696.60852 3.11% - 2s 0 0 696.60852 0 106 719.00000 696.60852 3.11% - 2s 0 2 696.62296 0 106 719.00000 696.62296 3.11% - 3s * 103 97 67 715.0000000 697.55890 2.44% 25.8 3s H 132 98 712.0000000 697.60231 2.02% 24.0 3s H 231 152 710.0000000 697.69536 1.73% 21.6 3s * 332 162 41 708.0000000 697.75500 1.45% 20.4 3s 601 305 701.00460 6 98 708.00000 698.93434 1.28% 20.0 5s * 1224 431 37 707.0000000 700.13174 0.97% 20.6 8s 1734 583 703.59113 19 79 707.00000 700.85973 0.87% 19.8 10s 3669 1233 702.53775 23 86 707.00000 701.90794 0.72% 18.7 15s 5754 1740 705.69014 23 85 707.00000 702.53306 0.63% 18.1 20s 7804 2055 704.95095 20 82 707.00000 703.03313 0.56% 17.8 25s 9892 2172 cutoff 30 707.00000 703.40147 0.51% 17.4 30s 12674 2037 705.97035 21 81 707.00000 703.93112 0.43% 17.2 35s 15264 1580 cutoff 35 707.00000 704.44792 0.36% 16.9 40s 18217 150 cutoff 29 707.00000 705.56250 0.20% 16.2 45s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Mod-K: 1 Explored 18385 nodes (297374 simplex iterations) in 45.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (32, 56), (34, 74), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (63, 74), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (14, 55), (14, 58), (16, 58), (8, 36), (20, 36), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] Optimize a model with 452 rows, 2850 columns and 166425 nonzeros Presolve time: 0.11s Presolved: 452 rows, 2850 columns, 166425 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08500 0 96 719.00000 696.08500 3.19% - 0s 0 0 696.08500 0 91 719.00000 696.08500 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27714 0 98 719.00000 696.27714 3.16% - 1s 0 0 696.28775 0 103 719.00000 696.28775 3.16% - 1s 0 0 696.43172 0 103 719.00000 696.43172 3.14% - 1s 0 0 696.61700 0 98 719.00000 696.61700 3.11% - 1s 0 0 696.61700 0 100 719.00000 696.61700 3.11% - 1s 0 0 696.62781 0 105 719.00000 696.62781 3.11% - 2s 0 0 696.62781 0 107 719.00000 696.62781 3.11% - 2s 0 0 696.63300 0 103 719.00000 696.63300 3.11% - 2s 0 0 696.63368 0 109 719.00000 696.63368 3.11% - 2s 0 0 696.65464 0 97 719.00000 696.65464 3.11% - 2s 0 0 696.65633 0 102 719.00000 696.65633 3.11% - 2s 0 0 696.65633 0 101 719.00000 696.65633 3.11% - 2s 0 0 696.65633 0 103 719.00000 696.65633 3.11% - 2s 0 0 696.66115 0 98 719.00000 696.66115 3.11% - 2s 0 0 696.66115 0 101 719.00000 696.66115 3.11% - 2s 0 0 696.66115 0 100 719.00000 696.66115 3.11% - 3s 0 0 696.66115 0 102 719.00000 696.66115 3.11% - 3s 0 0 696.66211 0 103 719.00000 696.66211 3.11% - 3s 0 0 696.66211 0 103 719.00000 696.66211 3.11% - 3s 0 2 696.67883 0 103 719.00000 696.67883 3.10% - 3s * 192 116 46 710.0000000 698.30431 1.65% 17.9 4s 454 288 699.73713 5 92 710.00000 698.86952 1.57% 19.4 5s * 1238 560 40 709.0000000 699.57059 1.33% 21.1 8s 1864 760 703.65030 25 85 709.00000 700.42676 1.21% 20.4 10s * 2002 781 37 708.0000000 700.57898 1.05% 20.3 10s 3658 1526 704.53660 26 77 708.00000 701.50725 0.92% 19.7 15s * 5655 2077 32 707.0000000 702.14286 0.69% 18.8 19s 5877 2116 704.55689 29 81 707.00000 702.21587 0.68% 18.8 20s 7983 2515 705.28176 30 80 707.00000 702.73016 0.60% 18.5 25s 10123 2798 705.48276 25 65 707.00000 703.12230 0.55% 18.1 30s 12782 2870 cutoff 32 707.00000 703.52825 0.49% 17.7 35s 15330 2738 705.59350 29 73 707.00000 703.88889 0.44% 17.4 40s 18026 2443 705.65159 32 73 707.00000 704.21809 0.39% 17.0 45s 21611 1650 cutoff 27 707.00000 704.69811 0.33% 16.5 50s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 24675 nodes (388197 simplex iterations) in 54.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 41), (4, 45), (6, 16), (6, 38), (8, 36), (13, 41), (14, 55), (14, 58), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (33, 45), (33, 51), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (26, 56), (59, 73)] Optimize a model with 454 rows, 2850 columns and 167160 nonzeros Presolve time: 0.11s Presolved: 454 rows, 2850 columns, 167160 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08522 0 98 716.00000 696.08522 2.78% - 0s 0 0 696.08522 0 91 716.00000 696.08522 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27711 0 96 716.00000 696.27711 2.75% - 1s 0 0 696.28777 0 103 716.00000 696.28777 2.75% - 1s 0 0 696.32806 0 103 716.00000 696.32806 2.75% - 1s 0 0 696.44714 0 99 716.00000 696.44714 2.73% - 1s 0 0 696.45256 0 101 716.00000 696.45256 2.73% - 1s 0 0 696.59160 0 100 716.00000 696.59160 2.71% - 1s 0 0 696.59983 0 106 716.00000 696.59983 2.71% - 1s 0 0 696.60687 0 104 716.00000 696.60687 2.71% - 2s 0 0 696.60687 0 106 716.00000 696.60687 2.71% - 2s 0 0 696.61629 0 105 716.00000 696.61629 2.71% - 2s 0 0 696.61755 0 106 716.00000 696.61755 2.71% - 2s 0 0 696.61755 0 107 716.00000 696.61755 2.71% - 2s 0 0 696.61755 0 108 716.00000 696.61755 2.71% - 2s H 0 0 715.0000000 696.61755 2.57% - 2s 0 2 696.61894 0 108 715.00000 696.61894 2.57% - 2s * 160 126 38 712.0000000 697.63891 2.02% 20.0 3s * 530 314 30 710.0000000 698.75534 1.58% 19.8 4s 658 388 703.63393 9 76 710.00000 699.05176 1.54% 20.0 5s * 771 441 41 709.0000000 699.15014 1.39% 20.4 6s * 922 466 40 708.0000000 699.15014 1.25% 20.9 7s 2131 763 706.09322 24 90 708.00000 701.06034 0.98% 19.8 10s * 3609 1241 29 707.0000000 701.91304 0.72% 19.1 13s 4390 1427 705.53846 30 67 707.00000 702.24242 0.67% 18.7 15s 6509 1767 703.83896 24 83 707.00000 702.93718 0.57% 18.1 20s 8924 1944 705.05967 19 78 707.00000 703.44330 0.50% 17.4 25s 11607 1912 705.25000 26 53 707.00000 703.90969 0.44% 16.9 30s 14664 1578 705.77333 25 69 707.00000 704.41582 0.37% 16.4 35s 17622 528 cutoff 30 707.00000 705.23853 0.25% 15.9 40s Cutting planes: Gomory: 1 MIR: 1 Zero half: 8 Explored 18333 nodes (285755 simplex iterations) in 40.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 23), (4, 45), (4, 17), (25, 50), (19, 25), (19, 56), (43, 65), (43, 44), (34, 64), (34, 74), (45, 51), (17, 64), (23, 62), (24, 50), (24, 57), (26, 51), (26, 56), (42, 44), (42, 57), (62, 65)] adding cut for [(16, 58), (3, 63), (37, 70), (37, 48), (70, 72), (35, 53), (14, 58), (14, 28), (61, 71), (61, 72), (21, 71), (21, 38), (22, 75), (22, 48), (6, 16), (6, 38), (28, 53), (29, 75), (29, 63)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 36), (9, 55), (9, 47), (12, 39), (12, 54), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 457 rows, 2850 columns and 167638 nonzeros Presolve time: 0.11s Presolved: 457 rows, 2850 columns, 167638 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 237 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 104 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 2s 0 0 696.55315 0 109 719.00000 696.55315 3.12% - 2s 0 0 696.55582 0 110 719.00000 696.55582 3.12% - 2s 0 0 696.60676 0 101 719.00000 696.60676 3.11% - 2s 0 0 696.60676 0 103 719.00000 696.60676 3.11% - 2s 0 0 696.61633 0 105 719.00000 696.61633 3.11% - 2s 0 0 696.61633 0 107 719.00000 696.61633 3.11% - 2s 0 0 696.61915 0 103 719.00000 696.61915 3.11% - 2s 0 0 696.62159 0 105 719.00000 696.62159 3.11% - 2s 0 0 696.64817 0 102 719.00000 696.64817 3.11% - 2s 0 0 696.65099 0 107 719.00000 696.65099 3.11% - 2s 0 0 696.65099 0 109 719.00000 696.65099 3.11% - 3s 0 0 696.66415 0 106 719.00000 696.66415 3.11% - 3s 0 0 696.66629 0 111 719.00000 696.66629 3.11% - 3s 0 0 696.68641 0 109 719.00000 696.68641 3.10% - 3s 0 0 696.68825 0 107 719.00000 696.68825 3.10% - 3s 0 0 696.68851 0 112 719.00000 696.68851 3.10% - 3s 0 2 696.69570 0 112 719.00000 696.69570 3.10% - 3s 54 56 703.13283 38 72 719.00000 696.87369 3.08% 26.0 5s * 219 132 48 711.0000000 697.04647 1.96% 19.6 5s * 492 270 25 710.0000000 698.01198 1.69% 20.2 6s H 600 301 709.0000000 698.26852 1.51% 20.0 6s 891 428 706.15321 29 80 709.00000 699.22930 1.38% 21.7 10s H 2128 791 708.0000000 701.33333 0.94% 19.9 13s 2881 1143 706.60000 30 70 708.00000 701.77473 0.88% 19.4 15s * 3456 1186 42 707.0000000 701.94868 0.71% 19.0 16s 5014 1539 704.41667 32 67 707.00000 702.54032 0.63% 18.5 20s 7009 1771 705.66981 30 85 707.00000 703.12919 0.55% 18.1 25s 9072 1830 704.98674 24 82 707.00000 703.63540 0.48% 17.7 30s 11464 1623 706.00000 30 81 707.00000 704.21807 0.39% 17.4 35s 14736 443 705.52830 22 84 707.00000 705.35986 0.23% 16.6 40s Cutting planes: Gomory: 7 MIR: 2 Zero half: 8 Explored 15259 nodes (249094 simplex iterations) in 40.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 64), (4, 45), (4, 52), (10, 40), (10, 41), (11, 32), (11, 73), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 41), (33, 45), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(3, 75), (37, 70), (37, 48), (70, 72), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (6, 49), (6, 38), (29, 75), (29, 62), (31, 49)] adding cut for [(66, 67), (36, 54), (39, 66), (39, 59), (8, 36), (12, 67), (12, 60), (15, 54), (15, 60)] Optimize a model with 460 rows, 2850 columns and 168209 nonzeros Presolve time: 0.11s Presolved: 460 rows, 2850 columns, 168209 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 229 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08513 0 97 716.00000 696.08513 2.78% - 0s 0 0 696.08513 0 91 716.00000 696.08513 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27711 0 96 716.00000 696.27711 2.75% - 1s 0 0 696.28777 0 103 716.00000 696.28777 2.75% - 1s 0 0 696.32806 0 103 716.00000 696.32806 2.75% - 1s 0 0 696.44714 0 99 716.00000 696.44714 2.73% - 1s 0 0 696.45256 0 101 716.00000 696.45256 2.73% - 1s 0 0 696.59160 0 100 716.00000 696.59160 2.71% - 2s 0 0 696.59785 0 106 716.00000 696.59785 2.71% - 2s 0 0 696.60242 0 104 716.00000 696.60242 2.71% - 2s 0 0 696.60242 0 106 716.00000 696.60242 2.71% - 2s 0 0 696.61480 0 105 716.00000 696.61480 2.71% - 2s 0 0 696.61480 0 107 716.00000 696.61480 2.71% - 2s 0 0 696.62269 0 106 716.00000 696.62269 2.71% - 2s 0 0 696.62269 0 108 716.00000 696.62269 2.71% - 2s 0 0 696.69608 0 99 716.00000 696.69608 2.70% - 2s 0 0 696.70195 0 105 716.00000 696.70195 2.70% - 2s 0 0 696.70469 0 107 716.00000 696.70469 2.69% - 2s 0 0 696.70944 0 107 716.00000 696.70944 2.69% - 3s 0 0 696.76563 0 109 716.00000 696.76563 2.69% - 3s 0 0 696.76654 0 110 716.00000 696.76654 2.69% - 3s 0 0 696.77450 0 106 716.00000 696.77450 2.69% - 3s 0 0 696.77450 0 107 716.00000 696.77450 2.69% - 3s 0 0 696.77957 0 110 716.00000 696.77957 2.68% - 3s 0 0 696.77957 0 111 716.00000 696.77957 2.68% - 3s 0 0 696.78439 0 106 716.00000 696.78439 2.68% - 3s 0 0 696.78439 0 107 716.00000 696.78439 2.68% - 3s 0 0 696.78929 0 107 716.00000 696.78929 2.68% - 3s 0 0 696.79021 0 108 716.00000 696.79021 2.68% - 3s 0 0 696.79021 0 109 716.00000 696.79021 2.68% - 4s 0 0 696.79021 0 109 716.00000 696.79021 2.68% - 4s 0 0 696.79021 0 109 716.00000 696.79021 2.68% - 4s 0 2 696.79618 0 109 716.00000 696.79618 2.68% - 4s 54 56 705.85799 36 62 716.00000 697.23803 2.62% 26.3 5s * 116 94 80 713.0000000 697.23803 2.21% 20.6 5s * 246 187 53 712.0000000 697.30044 2.06% 18.8 5s * 247 170 53 710.0000000 697.30044 1.79% 18.7 5s 823 507 705.84211 43 69 710.00000 698.46476 1.62% 22.1 10s * 2249 972 25 709.0000000 700.40338 1.21% 19.8 13s H 2721 1085 708.0000000 700.85156 1.01% 19.6 15s 4935 2063 706.76923 31 62 708.00000 701.86391 0.87% 18.4 20s H 5033 1783 707.0000000 701.88174 0.72% 18.3 20s 6998 2127 705.32787 23 67 707.00000 702.61176 0.62% 17.7 25s 9314 2422 704.53333 24 76 707.00000 703.11891 0.55% 17.3 30s 11900 2563 704.00000 22 65 707.00000 703.58652 0.48% 16.9 35s 14619 2420 704.75194 24 71 707.00000 704.04247 0.42% 16.6 40s 17403 1896 705.93863 30 60 707.00000 704.50893 0.35% 16.3 45s Cutting planes: Gomory: 7 MIR: 2 Zero half: 3 Explored 21177 nodes (323738 simplex iterations) in 49.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 38), (6, 49), (10, 26), (10, 41), (19, 51), (19, 56), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (29, 75), (31, 49), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (66, 67), (39, 66), (40, 73), (11, 32), (11, 39), (12, 67), (12, 60), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (16, 30), (20, 54), (20, 55), (59, 73), (30, 46)] Optimize a model with 462 rows, 2850 columns and 168908 nonzeros Presolve time: 0.11s Presolved: 462 rows, 2850 columns, 168908 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 251 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08513 0 97 719.00000 696.08513 3.19% - 0s 0 0 696.08513 0 91 719.00000 696.08513 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 104 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 2s 0 0 696.55315 0 109 719.00000 696.55315 3.12% - 2s 0 0 696.55582 0 110 719.00000 696.55582 3.12% - 2s 0 0 696.59282 0 101 719.00000 696.59282 3.12% - 2s 0 0 696.60494 0 103 719.00000 696.60494 3.11% - 2s 0 0 696.61538 0 110 719.00000 696.61538 3.11% - 2s 0 0 696.62628 0 106 719.00000 696.62628 3.11% - 2s 0 0 696.62945 0 109 719.00000 696.62945 3.11% - 2s 0 0 696.64466 0 100 719.00000 696.64466 3.11% - 2s 0 0 696.64838 0 105 719.00000 696.64838 3.11% - 2s 0 0 696.65161 0 105 719.00000 696.65161 3.11% - 2s 0 0 696.65546 0 110 719.00000 696.65546 3.11% - 2s 0 0 696.65984 0 109 719.00000 696.65984 3.11% - 2s 0 0 696.66365 0 112 719.00000 696.66365 3.11% - 2s 0 0 696.66474 0 111 719.00000 696.66474 3.11% - 3s 0 0 696.66474 0 113 719.00000 696.66474 3.11% - 3s 0 2 696.66858 0 113 719.00000 696.66858 3.11% - 3s * 75 72 43 714.0000000 697.27618 2.34% 28.4 3s * 146 100 30 711.0000000 697.34885 1.92% 22.0 4s 384 281 709.66667 38 33 711.00000 697.89603 1.84% 20.7 5s * 698 429 50 709.0000000 698.63111 1.46% 20.9 8s H 833 446 708.0000000 698.91337 1.28% 21.7 9s 1062 495 702.30097 18 80 708.00000 699.94637 1.14% 21.7 10s * 1882 622 37 707.0000000 700.93636 0.86% 20.5 12s 2199 725 705.68685 27 86 707.00000 701.00310 0.85% 20.9 15s 4144 912 705.57188 27 76 707.00000 701.72583 0.75% 19.7 20s 6395 1371 702.89355 33 92 707.00000 702.65577 0.61% 18.7 25s 8668 1703 704.94317 33 88 707.00000 703.23810 0.53% 18.0 30s 11199 1818 704.52416 29 75 707.00000 703.74355 0.46% 17.4 35s 14255 1413 705.40000 32 73 707.00000 704.38572 0.37% 17.0 40s Cutting planes: Gomory: 8 MIR: 1 Zero half: 4 Mod-K: 1 Explored 17128 nodes (279356 simplex iterations) in 44.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 36), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (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), (36, 54), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (66, 67)] adding cut for [(6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (8, 20), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (28, 58), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] Optimize a model with 464 rows, 2850 columns and 169563 nonzeros Presolve time: 0.10s Presolved: 464 rows, 2850 columns, 169563 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 295 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 103 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 1s 0 0 696.56418 0 105 719.00000 696.56418 3.12% - 2s 0 0 696.57808 0 106 719.00000 696.57808 3.12% - 2s 0 0 696.58806 0 101 719.00000 696.58806 3.12% - 2s 0 0 696.59243 0 103 719.00000 696.59243 3.12% - 2s 0 0 696.59635 0 105 719.00000 696.59635 3.12% - 2s 0 0 696.60999 0 107 719.00000 696.60999 3.11% - 2s 0 0 696.60999 0 108 719.00000 696.60999 3.11% - 2s 0 0 696.60999 0 109 719.00000 696.60999 3.11% - 2s 0 0 696.60999 0 110 719.00000 696.60999 3.11% - 2s 0 2 696.65315 0 109 719.00000 696.65315 3.11% - 3s * 192 135 42 713.0000000 697.65949 2.15% 21.4 4s H 600 229 708.0000000 699.04843 1.26% 19.6 5s 2030 701 702.74036 19 88 708.00000 701.64261 0.90% 20.1 10s 4102 1478 706.70000 24 74 708.00000 702.51352 0.77% 19.3 15s * 4600 1410 28 707.0000000 702.69141 0.61% 19.2 16s 6270 1529 704.81140 20 89 707.00000 703.38028 0.51% 18.8 20s 8467 1452 705.16788 23 76 707.00000 703.99293 0.43% 18.1 25s 10718 1056 705.91304 23 53 707.00000 704.64162 0.33% 17.6 30s Cutting planes: Gomory: 1 MIR: 1 Zero half: 12 Explored 12541 nodes (210383 simplex iterations) in 32.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (37, 70), (37, 72), (47, 53), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (32, 56), (33, 45), (4, 45), (4, 52), (19, 51), (19, 25), (17, 64), (10, 33), (10, 40), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (8, 36), (9, 36), (9, 20), (11, 39), (11, 59), (12, 67), (12, 54), (13, 41), (13, 73), (15, 54), (15, 60), (20, 55), (55, 60), (59, 73)] Optimize a model with 467 rows, 2850 columns and 170066 nonzeros Presolve time: 0.10s Presolved: 467 rows, 2850 columns, 170066 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 250 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08513 0 97 719.00000 696.08513 3.19% - 0s 0 0 696.08513 0 91 719.00000 696.08513 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27598 0 98 719.00000 696.27598 3.16% - 1s 0 0 696.29384 0 103 719.00000 696.29384 3.16% - 1s 0 0 696.35672 0 103 719.00000 696.35672 3.15% - 1s 0 0 696.37839 0 102 719.00000 696.37839 3.15% - 1s 0 0 696.41119 0 104 719.00000 696.41119 3.14% - 2s 0 0 696.56524 0 106 719.00000 696.56524 3.12% - 2s 0 0 696.57901 0 107 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 108 719.00000 696.57901 3.12% - 2s 0 0 696.57901 0 109 719.00000 696.57901 3.12% - 2s 0 0 696.62655 0 108 719.00000 696.62655 3.11% - 2s 0 0 696.63163 0 109 719.00000 696.63163 3.11% - 2s 0 0 696.63628 0 112 719.00000 696.63628 3.11% - 2s 0 0 696.65047 0 110 719.00000 696.65047 3.11% - 2s 0 0 696.65329 0 113 719.00000 696.65329 3.11% - 2s 0 0 696.70015 0 102 719.00000 696.70015 3.10% - 2s 0 0 696.70015 0 104 719.00000 696.70015 3.10% - 2s 0 0 696.70603 0 102 719.00000 696.70603 3.10% - 3s 0 0 696.70747 0 105 719.00000 696.70747 3.10% - 3s 0 0 696.71177 0 104 719.00000 696.71177 3.10% - 3s 0 0 696.71799 0 111 719.00000 696.71799 3.10% - 3s 0 0 696.72440 0 110 719.00000 696.72440 3.10% - 3s 0 0 696.72440 0 111 719.00000 696.72440 3.10% - 3s 0 0 696.72541 0 111 719.00000 696.72541 3.10% - 3s 0 2 696.72612 0 111 719.00000 696.72612 3.10% - 3s 282 272 717.93878 93 52 719.00000 697.15777 3.04% 16.0 5s * 308 280 112 718.0000000 697.15777 2.90% 15.7 5s * 426 367 99 717.0000000 697.16168 2.77% 15.0 5s * 429 341 96 716.0000000 697.16168 2.63% 14.9 5s H 468 349 715.0000000 697.39995 2.46% 16.0 6s * 496 289 42 711.0000000 697.39995 1.91% 16.0 6s * 502 253 43 710.0000000 697.39995 1.77% 15.9 6s H 600 284 709.0000000 697.59873 1.61% 17.1 6s 866 381 703.04380 30 68 709.00000 698.67465 1.46% 19.8 10s * 1443 508 31 708.0000000 700.02073 1.13% 19.8 11s H 1612 524 707.0000000 700.37063 0.94% 19.5 12s 2788 965 cutoff 25 707.00000 701.68571 0.75% 18.8 15s 4904 1438 705.33942 28 83 707.00000 702.77840 0.60% 18.1 20s 7017 1586 704.29412 18 75 707.00000 703.43369 0.50% 17.6 25s 9067 1415 705.94275 20 64 707.00000 704.00992 0.42% 17.4 30s 11514 803 705.29237 28 67 707.00000 704.77138 0.32% 16.9 35s Cutting planes: Gomory: 7 MIR: 1 Zero half: 5 Explored 12846 nodes (209805 simplex iterations) in 36.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(9, 20), (9, 47), (14, 28), (14, 55), (16, 38), (16, 58), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (33, 45), (33, 51), (37, 48), (37, 70), (41, 45), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(36, 54), (39, 66), (8, 36), (10, 32), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (15, 54), (15, 60), (40, 73), (59, 73), (60, 67)] Optimize a model with 469 rows, 2850 columns and 170747 nonzeros Presolve time: 0.10s Presolved: 469 rows, 2850 columns, 170747 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08522 0 98 716.00000 696.08522 2.78% - 0s 0 0 696.08522 0 91 716.00000 696.08522 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27714 0 98 716.00000 696.27714 2.75% - 1s 0 0 696.28775 0 103 716.00000 696.28775 2.75% - 1s 0 0 696.43172 0 101 716.00000 696.43172 2.73% - 1s 0 0 696.61766 0 101 716.00000 696.61766 2.71% - 1s 0 0 696.62295 0 106 716.00000 696.62295 2.71% - 1s 0 0 696.62295 0 108 716.00000 696.62295 2.71% - 1s 0 0 696.62468 0 106 716.00000 696.62468 2.71% - 2s 0 0 696.62468 0 108 716.00000 696.62468 2.71% - 2s 0 0 696.64024 0 102 716.00000 696.64024 2.70% - 2s 0 0 696.64391 0 107 716.00000 696.64391 2.70% - 2s 0 0 696.64850 0 109 716.00000 696.64850 2.70% - 2s 0 0 696.64970 0 109 716.00000 696.64970 2.70% - 2s 0 0 696.64970 0 111 716.00000 696.64970 2.70% - 2s 0 0 696.69631 0 102 716.00000 696.69631 2.70% - 2s 0 0 696.69631 0 104 716.00000 696.69631 2.70% - 2s 0 0 696.70100 0 106 716.00000 696.70100 2.70% - 2s 0 0 696.70100 0 108 716.00000 696.70100 2.70% - 3s 0 0 696.70173 0 106 716.00000 696.70173 2.70% - 3s 0 0 696.70301 0 109 716.00000 696.70301 2.70% - 3s 0 0 696.72003 0 106 716.00000 696.72003 2.69% - 3s 0 0 696.72003 0 108 716.00000 696.72003 2.69% - 3s 0 0 696.72453 0 105 716.00000 696.72453 2.69% - 3s 0 0 696.72458 0 107 716.00000 696.72458 2.69% - 3s 0 0 696.72459 0 107 716.00000 696.72459 2.69% - 3s 0 0 696.72459 0 108 716.00000 696.72459 2.69% - 3s 0 0 696.72459 0 108 716.00000 696.72459 2.69% - 3s 0 2 696.72510 0 108 716.00000 696.72510 2.69% - 4s 62 64 704.45434 39 72 716.00000 697.04647 2.65% 23.7 5s H 600 247 708.0000000 697.26416 1.52% 17.3 6s 866 345 704.64706 31 63 708.00000 698.57607 1.33% 20.0 10s 2795 1201 706.92880 29 75 708.00000 701.41715 0.93% 18.6 15s 4745 2044 706.72727 21 51 708.00000 702.13813 0.83% 17.9 20s 7012 2807 704.92857 19 90 708.00000 702.62697 0.76% 17.5 25s * 7967 2728 29 707.0000000 702.81728 0.59% 17.4 27s 9112 2856 704.64484 25 69 707.00000 703.03163 0.56% 17.3 30s 11418 2951 705.83510 27 63 707.00000 703.43697 0.50% 17.2 35s 14144 2832 705.75986 31 79 707.00000 703.84252 0.45% 17.0 40s 16779 2512 706.00000 29 56 707.00000 704.23507 0.39% 16.7 45s 20087 1609 705.78261 23 52 707.00000 704.80597 0.31% 16.3 50s Cutting planes: Gomory: 9 MIR: 3 Zero half: 11 Explored 22809 nodes (356363 simplex iterations) in 54.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (17, 64), (19, 51), (19, 56), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (24, 57), (24, 64), (25, 50), (26, 56), (28, 46), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (32, 40), (33, 45), (33, 51), (35, 53), (36, 54), (37, 48), (37, 70), (39, 66), (49, 75), (50, 57), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 470 rows, 2850 columns and 171923 nonzeros Presolve time: 0.10s Presolved: 470 rows, 2850 columns, 171923 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 254 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 98 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27711 0 96 719.00000 696.27711 3.16% - 1s 0 0 696.28777 0 103 719.00000 696.28777 3.16% - 1s 0 0 696.32856 0 106 719.00000 696.32856 3.15% - 1s 0 0 696.46747 0 99 719.00000 696.46747 3.13% - 1s 0 0 696.49326 0 102 719.00000 696.49326 3.13% - 2s 0 0 696.56593 0 101 719.00000 696.56593 3.12% - 2s 0 0 696.56593 0 103 719.00000 696.56593 3.12% - 2s 0 0 696.56593 0 102 719.00000 696.56593 3.12% - 2s 0 0 696.56593 0 104 719.00000 696.56593 3.12% - 2s 0 0 696.58289 0 105 719.00000 696.58289 3.12% - 2s 0 0 696.59175 0 105 719.00000 696.59175 3.12% - 2s 0 0 696.59175 0 106 719.00000 696.59175 3.12% - 2s 0 0 696.59175 0 107 719.00000 696.59175 3.12% - 2s 0 0 696.63828 0 106 719.00000 696.63828 3.11% - 3s 0 0 696.63884 0 108 719.00000 696.63884 3.11% - 3s 0 0 696.63884 0 107 719.00000 696.63884 3.11% - 3s 0 0 696.63884 0 109 719.00000 696.63884 3.11% - 3s 0 0 696.68035 0 107 719.00000 696.68035 3.10% - 3s 0 0 696.68035 0 110 719.00000 696.68035 3.10% - 3s 0 0 696.69368 0 109 719.00000 696.69368 3.10% - 3s 0 0 696.69368 0 111 719.00000 696.69368 3.10% - 3s 0 0 696.69735 0 108 719.00000 696.69735 3.10% - 3s 0 0 696.69746 0 110 719.00000 696.69746 3.10% - 4s 0 0 696.70406 0 110 719.00000 696.70406 3.10% - 4s 0 0 696.70569 0 112 719.00000 696.70569 3.10% - 4s 0 0 696.71366 0 106 719.00000 696.71366 3.10% - 4s 0 0 696.73977 0 110 719.00000 696.73977 3.10% - 4s 0 0 696.74167 0 110 719.00000 696.74167 3.10% - 4s 0 0 696.74167 0 112 719.00000 696.74167 3.10% - 5s 0 0 696.74167 0 112 719.00000 696.74167 3.10% - 5s 0 2 696.74253 0 112 719.00000 696.74253 3.10% - 5s * 107 89 66 718.0000000 697.04647 2.92% 22.9 6s * 173 97 49 708.0000000 697.16395 1.53% 21.5 6s 622 369 701.33694 17 89 708.00000 698.76988 1.30% 21.9 10s 2314 841 706.04673 25 85 708.00000 701.47663 0.92% 21.1 15s * 3286 1099 34 707.0000000 702.02857 0.70% 20.3 17s 4167 1262 704.89790 26 76 707.00000 702.52795 0.63% 20.0 20s 6180 1468 705.00000 32 49 707.00000 703.26875 0.53% 19.4 25s 8246 1432 705.37313 25 74 707.00000 703.85714 0.44% 18.8 30s 10296 1096 704.87822 29 72 707.00000 704.50000 0.35% 18.4 35s Cutting planes: Gomory: 6 MIR: 3 Zero half: 9 Explored 12281 nodes (215872 simplex iterations) in 37.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (10, 26), (10, 41), (11, 32), (11, 39), (12, 66), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (32, 40), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 471 rows, 2850 columns and 173004 nonzeros Presolve time: 0.11s Presolved: 471 rows, 2850 columns, 173004 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 189 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 714.0000000 695.43817 2.60% - 0s 0 0 696.08522 0 98 714.00000 696.08522 2.51% - 0s 0 0 696.08522 0 91 714.00000 696.08522 2.51% - 1s 0 0 696.24980 0 97 714.00000 696.24980 2.49% - 1s 0 0 696.24980 0 99 714.00000 696.24980 2.49% - 1s 0 0 696.27093 0 100 714.00000 696.27093 2.48% - 1s 0 0 696.27714 0 98 714.00000 696.27714 2.48% - 1s 0 0 696.28775 0 102 714.00000 696.28775 2.48% - 1s 0 0 696.44188 0 102 714.00000 696.44188 2.46% - 1s 0 0 696.61872 0 101 714.00000 696.61872 2.43% - 1s 0 0 696.62188 0 99 714.00000 696.62188 2.43% - 1s 0 0 696.62188 0 101 714.00000 696.62188 2.43% - 1s 0 0 696.62678 0 108 714.00000 696.62678 2.43% - 2s 0 0 696.62678 0 110 714.00000 696.62678 2.43% - 2s 0 0 696.62941 0 104 714.00000 696.62941 2.43% - 2s 0 0 696.62941 0 106 714.00000 696.62941 2.43% - 2s 0 0 696.63201 0 104 714.00000 696.63201 2.43% - 2s 0 0 696.63201 0 105 714.00000 696.63201 2.43% - 2s 0 0 696.63201 0 106 714.00000 696.63201 2.43% - 2s 0 0 696.63201 0 107 714.00000 696.63201 2.43% - 2s 0 2 696.64061 0 107 714.00000 696.64061 2.43% - 3s H 61 61 711.0000000 696.80758 2.00% 26.5 3s H 374 260 709.0000000 697.27618 1.65% 20.3 4s 601 381 706.11765 27 98 709.00000 698.55303 1.47% 19.9 5s 1021 538 705.31620 19 97 709.00000 699.37725 1.36% 21.8 10s * 1562 617 37 708.0000000 700.73184 1.03% 20.5 11s 3007 1154 704.08376 21 87 708.00000 702.03538 0.84% 19.3 15s * 4320 1381 34 707.0000000 702.60865 0.62% 18.7 18s 4933 1458 704.55395 26 89 707.00000 702.93452 0.58% 18.6 20s 6958 1546 705.98148 23 73 707.00000 703.63474 0.48% 18.0 25s 9103 1328 705.25000 27 50 707.00000 704.33503 0.38% 17.5 30s Cutting planes: Gomory: 8 MIR: 2 Zero half: 6 Explored 11591 nodes (190757 simplex iterations) in 34.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (9, 20), (9, 47), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (17, 64), (20, 55), (21, 38), (21, 71), (22, 62), (22, 75), (23, 63), (23, 65), (24, 25), (24, 57), (25, 50), (29, 63), (29, 75), (34, 74), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(4, 45), (4, 52), (39, 66), (8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (45, 51), (15, 54), (15, 60), (19, 51), (19, 56), (36, 54), (26, 32), (26, 56), (60, 67)] Optimize a model with 473 rows, 2850 columns and 173685 nonzeros Presolve time: 0.11s Presolved: 473 rows, 2850 columns, 173685 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 189 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 710.0000000 695.43817 2.05% - 0s 0 0 696.08522 0 98 710.00000 696.08522 1.96% - 0s 0 0 696.08522 0 91 710.00000 696.08522 1.96% - 1s 0 0 696.24980 0 97 710.00000 696.24980 1.94% - 1s 0 0 696.24980 0 99 710.00000 696.24980 1.94% - 1s 0 0 696.27433 0 99 710.00000 696.27433 1.93% - 1s 0 0 696.29567 0 103 710.00000 696.29567 1.93% - 1s 0 0 696.31849 0 98 710.00000 696.31849 1.93% - 1s 0 0 696.34412 0 103 710.00000 696.34412 1.92% - 1s 0 0 696.52216 0 103 710.00000 696.52216 1.90% - 1s 0 0 696.55885 0 104 710.00000 696.55885 1.89% - 1s 0 0 696.56077 0 107 710.00000 696.56077 1.89% - 1s 0 0 696.57796 0 104 710.00000 696.57796 1.89% - 1s 0 0 696.57796 0 106 710.00000 696.57796 1.89% - 1s 0 0 696.59460 0 107 710.00000 696.59460 1.89% - 1s 0 0 696.59467 0 106 710.00000 696.59467 1.89% - 1s 0 0 696.59823 0 108 710.00000 696.59823 1.89% - 2s 0 0 696.60220 0 108 710.00000 696.60220 1.89% - 2s 0 0 696.62465 0 106 710.00000 696.62465 1.88% - 2s 0 0 696.66173 0 110 710.00000 696.66173 1.88% - 2s 0 0 696.68194 0 109 710.00000 696.68194 1.88% - 2s 0 0 696.68194 0 111 710.00000 696.68194 1.88% - 2s 0 0 696.69701 0 109 710.00000 696.69701 1.87% - 2s 0 0 696.69761 0 110 710.00000 696.69761 1.87% - 2s 0 0 696.69761 0 110 710.00000 696.69761 1.87% - 2s 0 0 696.69761 0 111 710.00000 696.69761 1.87% - 2s 0 2 696.69941 0 111 710.00000 696.69941 1.87% - 2s * 254 176 25 708.0000000 698.15449 1.39% 22.2 3s 601 343 702.34497 14 98 708.00000 699.08103 1.26% 19.5 5s 1009 454 703.61303 26 74 708.00000 699.41038 1.21% 19.8 10s 3105 1011 705.17000 26 73 708.00000 701.85985 0.87% 18.9 15s * 5010 1284 32 707.0000000 702.57863 0.63% 18.5 19s 5304 1280 703.65605 21 81 707.00000 702.72059 0.61% 18.4 20s 7527 1153 704.59699 25 71 707.00000 703.56944 0.49% 18.1 25s 9972 659 705.45850 24 71 707.00000 704.59756 0.34% 17.5 30s Cutting planes: Gomory: 5 MIR: 1 Zero half: 7 Explored 11184 nodes (189159 simplex iterations) in 31.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(3, 75), (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), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (26, 56), (28, 58), (29, 75), (32, 56), (37, 48), (37, 70), (39, 66), (40, 73), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 44), (2, 63), (4, 41), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (34, 64), (34, 74), (17, 64), (17, 52), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (42, 65), (42, 57), (63, 74)] Optimize a model with 475 rows, 2850 columns and 174490 nonzeros Presolve time: 0.12s Presolved: 475 rows, 2850 columns, 174490 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 241 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 715.0000000 695.43817 2.74% - 0s 0 0 696.08500 0 96 715.00000 696.08500 2.65% - 0s 0 0 696.08500 0 91 715.00000 696.08500 2.65% - 1s 0 0 696.24980 0 97 715.00000 696.24980 2.62% - 1s 0 0 696.24980 0 99 715.00000 696.24980 2.62% - 1s 0 0 696.27093 0 100 715.00000 696.27093 2.62% - 1s 0 0 696.27595 0 96 715.00000 696.27595 2.62% - 1s 0 0 696.28578 0 102 715.00000 696.28578 2.62% - 1s 0 0 696.32354 0 104 715.00000 696.32354 2.61% - 1s 0 0 696.41232 0 106 715.00000 696.41232 2.60% - 1s 0 0 696.48487 0 103 715.00000 696.48487 2.59% - 1s 0 0 696.50106 0 102 715.00000 696.50106 2.59% - 1s 0 0 696.57574 0 107 715.00000 696.57574 2.58% - 1s 0 0 696.58614 0 105 715.00000 696.58614 2.58% - 2s 0 0 696.59373 0 108 715.00000 696.59373 2.57% - 2s 0 0 696.60544 0 107 715.00000 696.60544 2.57% - 2s 0 0 696.60840 0 110 715.00000 696.60840 2.57% - 2s 0 0 696.62075 0 108 715.00000 696.62075 2.57% - 2s 0 0 696.62775 0 110 715.00000 696.62775 2.57% - 2s 0 0 696.63742 0 106 715.00000 696.63742 2.57% - 2s 0 0 696.64044 0 110 715.00000 696.64044 2.57% - 2s 0 0 696.64044 0 111 715.00000 696.64044 2.57% - 2s 0 0 696.65187 0 106 715.00000 696.65187 2.57% - 2s 0 0 696.65187 0 107 715.00000 696.65187 2.57% - 2s 0 0 696.65328 0 112 715.00000 696.65328 2.57% - 2s 0 0 696.65968 0 107 715.00000 696.65968 2.57% - 2s 0 0 696.66116 0 110 715.00000 696.66116 2.56% - 2s 0 0 696.66195 0 112 715.00000 696.66195 2.56% - 3s 0 0 696.66195 0 113 715.00000 696.66195 2.56% - 3s 0 0 696.66195 0 113 715.00000 696.66195 2.56% - 3s 0 2 696.66262 0 113 715.00000 696.66262 2.56% - 3s H 54 54 713.0000000 696.75836 2.28% 26.6 4s 362 293 701.30860 8 89 713.00000 698.43962 2.04% 18.0 5s H 600 404 711.0000000 698.69782 1.73% 17.6 5s * 803 459 55 710.0000000 698.69782 1.59% 19.1 9s 984 536 703.38095 25 67 710.00000 699.03861 1.54% 20.5 10s * 2230 982 38 709.0000000 700.91759 1.14% 19.7 13s 2798 1219 703.16940 23 77 709.00000 701.40168 1.07% 19.6 15s * 2970 1147 34 708.0000000 701.51660 0.92% 19.5 15s 4721 1832 703.81572 19 87 708.00000 702.24074 0.81% 18.9 20s 6833 2525 705.30281 23 74 708.00000 702.85354 0.73% 18.4 25s 8754 3007 704.49746 24 85 708.00000 703.18588 0.68% 18.0 30s * 9928 2730 31 707.0000000 703.36364 0.51% 17.8 32s 10101 2747 705.42063 36 96 707.00000 703.39948 0.51% 17.8 35s 11146 2894 705.94068 36 69 707.00000 703.39948 0.51% 18.2 40s 13078 2811 703.95073 34 75 707.00000 703.39948 0.51% 18.2 45s 15371 2415 705.47566 31 87 707.00000 703.39948 0.51% 18.1 50s 17802 1773 705.56835 33 70 707.00000 703.51290 0.49% 17.9 55s 20486 1437 705.77419 37 78 707.00000 704.05111 0.42% 17.7 60s 23230 740 705.73394 33 66 707.00000 704.81875 0.31% 17.3 65s Cutting planes: Gomory: 8 MIR: 1 Zero half: 4 Mod-K: 1 Explored 24427 nodes (416261 simplex iterations) in 66.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 52), (6, 16), (6, 38), (9, 20), (9, 36), (10, 32), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (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), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (49, 75), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 476 rows, 2850 columns and 175868 nonzeros Presolve time: 0.12s Presolved: 476 rows, 2850 columns, 175868 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 2s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 2s 0 0 696.42832 0 103 719.00000 696.42832 3.14% - 2s 0 0 696.44424 0 106 719.00000 696.44424 3.14% - 2s 0 0 696.47348 0 106 719.00000 696.47348 3.13% - 2s 0 0 696.49171 0 106 719.00000 696.49171 3.13% - 2s 0 0 696.49268 0 110 719.00000 696.49268 3.13% - 2s 0 0 696.49469 0 111 719.00000 696.49469 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 2 696.53289 0 112 719.00000 696.53289 3.12% - 2s H 374 286 716.0000000 698.26130 2.48% 18.7 4s * 541 385 48 714.0000000 698.28038 2.20% 18.7 4s 563 401 705.18493 17 68 714.00000 698.28808 2.20% 18.8 5s H 700 456 713.0000000 698.54959 2.03% 18.1 5s * 899 507 45 710.0000000 698.54959 1.61% 20.2 8s * 1015 521 39 709.0000000 698.54959 1.47% 20.8 9s H 1105 528 708.0000000 699.20318 1.24% 21.1 10s 2347 765 706.10526 39 70 708.00000 700.96481 0.99% 21.2 15s 4275 1419 706.78451 36 84 708.00000 702.19916 0.82% 20.0 20s 6182 2029 705.68046 37 81 708.00000 702.86976 0.72% 19.5 25s 8097 2450 706.03074 45 67 708.00000 703.35191 0.66% 19.1 30s * 8883 2165 35 707.0000000 703.51531 0.49% 19.0 31s 10278 2102 704.28639 42 77 707.00000 703.84000 0.45% 18.8 35s 12923 1602 705.35714 40 62 707.00000 704.53358 0.35% 18.4 40s Cutting planes: Gomory: 5 MIR: 4 Zero half: 3 Explored 15773 nodes (273525 simplex iterations) in 44.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (9, 20), (9, 47), (14, 55), (14, 58), (16, 30), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (29, 62), (29, 75), (30, 49), (31, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(34, 64), (34, 74), (3, 63), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (17, 50), (17, 52), (25, 50), (25, 57), (23, 65), (23, 63), (24, 64), (24, 57)] adding cut for [(4, 45), (39, 66), (8, 36), (11, 32), (11, 39), (12, 66), (12, 67), (45, 51), (15, 54), (15, 60), (19, 51), (19, 56), (36, 54), (26, 32), (26, 56), (60, 67)] Optimize a model with 479 rows, 2850 columns and 176393 nonzeros Presolve time: 0.12s Presolved: 479 rows, 2850 columns, 176393 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 709.0000000 695.43817 1.91% - 0s 0 0 696.08522 0 97 709.00000 696.08522 1.82% - 0s 0 0 696.08522 0 91 709.00000 696.08522 1.82% - 0s 0 0 696.24980 0 97 709.00000 696.24980 1.80% - 0s 0 0 696.24980 0 99 709.00000 696.24980 1.80% - 1s 0 0 696.27433 0 98 709.00000 696.27433 1.79% - 1s 0 0 696.28814 0 98 709.00000 696.28814 1.79% - 1s 0 0 696.30387 0 103 709.00000 696.30387 1.79% - 1s 0 0 696.35183 0 103 709.00000 696.35183 1.78% - 1s 0 0 696.53175 0 99 709.00000 696.53175 1.76% - 1s 0 0 696.53686 0 100 709.00000 696.53686 1.76% - 1s 0 0 696.54166 0 105 709.00000 696.54166 1.76% - 1s 0 0 696.54166 0 106 709.00000 696.54166 1.76% - 1s 0 0 696.60791 0 97 709.00000 696.60791 1.75% - 1s 0 0 696.60791 0 100 709.00000 696.60791 1.75% - 1s 0 0 696.61391 0 104 709.00000 696.61391 1.75% - 1s 0 0 696.61671 0 106 709.00000 696.61671 1.75% - 1s 0 0 696.62058 0 105 709.00000 696.62058 1.75% - 1s 0 0 696.62383 0 105 709.00000 696.62383 1.75% - 2s 0 0 696.62713 0 105 709.00000 696.62713 1.75% - 2s 0 0 696.62805 0 108 709.00000 696.62805 1.74% - 2s 0 0 696.62848 0 111 709.00000 696.62848 1.74% - 2s 0 0 696.63113 0 111 709.00000 696.63113 1.74% - 2s 0 2 696.63609 0 111 709.00000 696.63609 1.74% - 2s 607 415 705.65217 16 110 709.00000 699.21831 1.38% 20.4 5s H 635 413 708.0000000 699.21831 1.24% 21.4 5s 2278 887 705.87213 29 74 708.00000 701.52107 0.92% 19.7 10s 4395 1808 cutoff 33 708.00000 702.40284 0.79% 18.5 15s 6522 2508 703.88344 26 89 708.00000 702.89981 0.72% 18.1 20s 8698 3067 706.28889 35 66 708.00000 703.28938 0.67% 17.8 25s 10986 3484 706.76119 33 72 708.00000 703.67726 0.61% 17.5 30s 13310 3892 706.46269 29 69 708.00000 703.94872 0.57% 17.2 35s *14482 3216 38 707.0000000 704.07537 0.41% 17.2 37s 15530 3009 704.87195 28 80 707.00000 704.33333 0.38% 17.1 40s 18517 1863 705.90909 28 57 707.00000 705.05682 0.27% 16.7 45s Cutting planes: MIR: 2 Zero half: 13 Explored 20924 nodes (329976 simplex iterations) in 47.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (36, 54), (39, 66), (9, 36), (9, 47), (11, 32), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60), (17, 64), (17, 52), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(38, 58), (6, 16), (6, 49), (29, 75), (29, 62), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (31, 75), (70, 72), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] Optimize a model with 481 rows, 2850 columns and 176774 nonzeros Presolve time: 0.12s Presolved: 481 rows, 2850 columns, 176774 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 1s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 2s 0 0 696.42832 0 103 719.00000 696.42832 3.14% - 2s 0 0 696.44424 0 106 719.00000 696.44424 3.14% - 2s 0 0 696.47348 0 106 719.00000 696.47348 3.13% - 2s 0 0 696.49171 0 106 719.00000 696.49171 3.13% - 2s 0 0 696.49268 0 110 719.00000 696.49268 3.13% - 2s 0 0 696.49469 0 111 719.00000 696.49469 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 2 696.53289 0 112 719.00000 696.53289 3.12% - 2s * 170 119 41 711.0000000 697.86587 1.85% 23.3 3s H 229 152 710.0000000 698.02200 1.69% 21.9 4s H 600 347 709.0000000 698.82870 1.43% 19.5 5s H 1293 518 708.0000000 699.78257 1.16% 20.7 8s 1969 760 704.96388 20 75 708.00000 700.76923 1.02% 20.1 10s 3866 1519 706.52956 24 79 708.00000 702.01113 0.85% 19.3 15s 5712 2113 706.66667 25 46 708.00000 702.62651 0.76% 18.8 20s 7985 2774 cutoff 26 708.00000 703.15947 0.68% 18.1 25s 10136 3201 704.16358 21 74 708.00000 703.55604 0.63% 17.8 30s 12600 3581 706.40000 23 55 708.00000 703.86667 0.58% 17.6 35s 15304 3882 cutoff 28 708.00000 704.13415 0.55% 17.2 40s 18003 4047 706.33696 22 65 708.00000 704.39394 0.51% 16.9 45s 21421 4018 706.78488 25 73 708.00000 704.71503 0.46% 16.5 50s 24968 3784 705.66667 23 48 708.00000 705.00000 0.42% 16.1 55s 28545 3272 706.84570 32 69 708.00000 705.30000 0.38% 15.7 60s *31293 1307 30 707.0000000 705.58516 0.20% 15.5 64s 31369 1235 705.81111 23 74 707.00000 705.60654 0.20% 15.5 65s Cutting planes: Gomory: 1 MIR: 1 Zero half: 14 Explored 32670 nodes (491600 simplex iterations) in 67.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(3, 31), (3, 63), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (28, 53), (29, 62), (29, 75), (30, 46), (30, 49), (35, 53), (37, 70), (37, 72), (48, 49), (55, 58), (61, 71), (61, 72), (62, 70)] Optimize a model with 483 rows, 2850 columns and 177327 nonzeros Presolve time: 0.12s Presolved: 483 rows, 2850 columns, 177327 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 2s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 2s 0 0 696.42832 0 103 719.00000 696.42832 3.14% - 2s 0 0 696.44424 0 106 719.00000 696.44424 3.14% - 2s 0 0 696.47348 0 106 719.00000 696.47348 3.13% - 2s 0 0 696.49171 0 106 719.00000 696.49171 3.13% - 2s 0 0 696.49268 0 110 719.00000 696.49268 3.13% - 2s 0 0 696.49469 0 111 719.00000 696.49469 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 2 696.53289 0 112 719.00000 696.53289 3.12% - 3s * 170 119 41 711.0000000 697.86587 1.85% 23.3 3s H 600 347 709.0000000 698.60673 1.47% 19.5 5s 1312 589 cutoff 45 709.00000 699.58583 1.33% 20.8 10s * 1931 747 41 708.0000000 700.44351 1.07% 20.2 11s H 2556 910 707.0000000 700.87500 0.87% 19.9 13s 3185 1116 704.98115 25 82 707.00000 701.38664 0.79% 19.7 15s 4975 1627 704.44805 28 78 707.00000 702.20312 0.68% 19.2 20s 7113 1939 703.37857 31 65 707.00000 702.85466 0.59% 18.5 25s 9079 2026 704.98078 27 68 707.00000 703.31187 0.52% 18.1 30s 11293 1955 705.60000 30 77 707.00000 703.73831 0.46% 17.8 35s 13984 1568 cutoff 35 707.00000 704.28912 0.38% 17.4 40s 16137 798 705.68750 32 71 707.00000 704.98090 0.29% 17.0 45s Cutting planes: Gomory: 7 MIR: 3 Zero half: 2 Mod-K: 1 Explored 17291 nodes (285310 simplex iterations) in 46.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.070000000000e+02, best bound 7.070000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (12, 39), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (30, 46), (30, 49), (32, 56), (32, 66), (34, 74), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 484 rows, 2850 columns and 178273 nonzeros Presolve time: 0.12s Presolved: 484 rows, 2850 columns, 178273 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 240 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 2s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 2s 0 0 696.42832 0 103 719.00000 696.42832 3.14% - 2s 0 0 696.44424 0 106 719.00000 696.44424 3.14% - 2s 0 0 696.47348 0 106 719.00000 696.47348 3.13% - 2s 0 0 696.49171 0 106 719.00000 696.49171 3.13% - 2s 0 0 696.49268 0 110 719.00000 696.49268 3.13% - 2s 0 0 696.49469 0 111 719.00000 696.49469 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 2 696.53289 0 112 719.00000 696.53289 3.12% - 3s * 170 119 41 711.0000000 697.86587 1.85% 23.4 4s 569 401 706.89071 17 66 711.00000 698.60335 1.74% 19.7 5s H 600 348 709.0000000 698.60673 1.47% 19.8 5s * 826 407 45 708.0000000 698.93456 1.28% 21.2 9s 855 420 705.26709 29 73 708.00000 699.01980 1.27% 21.2 10s 3095 1166 705.20722 28 65 708.00000 701.67363 0.89% 18.9 15s 5330 1714 705.74933 28 84 708.00000 702.48341 0.78% 18.6 20s 6716 1979 704.59178 26 67 708.00000 702.85139 0.73% 18.6 25s 9135 2325 705.50000 24 61 708.00000 703.28354 0.67% 18.3 30s 11604 2501 704.07914 27 72 708.00000 703.68459 0.61% 18.2 35s 13877 2519 704.75185 33 76 708.00000 703.98924 0.57% 18.0 40s 16992 2345 706.02507 27 86 708.00000 704.41229 0.51% 17.8 45s 20247 1923 cutoff 29 708.00000 704.86905 0.44% 17.6 50s 23199 1232 706.28571 27 62 708.00000 705.39088 0.37% 17.3 55s Cutting planes: Gomory: 5 MIR: 3 Zero half: 3 Mod-K: 1 Explored 25656 nodes (432096 simplex iterations) in 58.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 75), (30, 46), (30, 49), (34, 52), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (63, 75), (70, 72)] adding cut for [(11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (17, 64), (19, 25), (19, 51), (20, 55), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 53), (32, 56), (39, 66), (50, 57), (66, 67)] Optimize a model with 486 rows, 2850 columns and 178898 nonzeros Presolve time: 0.12s Presolved: 486 rows, 2850 columns, 178898 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 209 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 719.0000000 695.43817 3.28% - 0s 0 0 696.08522 0 97 719.00000 696.08522 3.19% - 0s 0 0 696.08522 0 91 719.00000 696.08522 3.19% - 1s 0 0 696.24980 0 97 719.00000 696.24980 3.16% - 1s 0 0 696.24980 0 99 719.00000 696.24980 3.16% - 1s 0 0 696.27093 0 100 719.00000 696.27093 3.16% - 1s 0 0 696.27803 0 97 719.00000 696.27803 3.16% - 1s 0 0 696.30374 0 101 719.00000 696.30374 3.16% - 1s 0 0 696.32153 0 102 719.00000 696.32153 3.15% - 2s 0 0 696.40606 0 103 719.00000 696.40606 3.14% - 2s 0 0 696.42832 0 103 719.00000 696.42832 3.14% - 2s 0 0 696.44424 0 106 719.00000 696.44424 3.14% - 2s 0 0 696.47348 0 106 719.00000 696.47348 3.13% - 2s 0 0 696.49171 0 106 719.00000 696.49171 3.13% - 2s 0 0 696.49268 0 110 719.00000 696.49268 3.13% - 2s 0 0 696.49469 0 111 719.00000 696.49469 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 0 696.49605 0 112 719.00000 696.49605 3.13% - 2s 0 2 696.53289 0 112 719.00000 696.53289 3.12% - 3s * 112 102 70 715.0000000 696.99728 2.52% 22.4 3s H 352 274 714.0000000 698.26852 2.20% 19.6 4s * 397 232 36 710.0000000 698.26852 1.65% 19.5 4s 548 322 704.18750 14 75 710.00000 698.58548 1.61% 19.6 5s H 603 346 709.0000000 698.60335 1.47% 19.3 6s * 1388 547 42 708.0000000 700.00820 1.13% 21.0 9s 1411 550 cutoff 36 708.00000 700.01776 1.13% 20.9 10s 3206 1342 704.41704 25 79 708.00000 701.50612 0.92% 19.8 15s 5134 2092 703.06224 25 79 708.00000 702.12539 0.83% 19.1 20s 7148 2762 705.33829 24 66 708.00000 702.60976 0.76% 18.6 25s 9115 3302 705.20370 27 67 708.00000 702.92473 0.72% 18.5 30s 11409 3869 706.31250 35 62 708.00000 703.24405 0.67% 18.2 35s 13757 4337 706.88451 31 74 708.00000 703.51369 0.63% 18.0 40s 16343 4763 705.16787 31 79 708.00000 703.76008 0.60% 17.8 45s 19505 5125 705.65804 26 80 708.00000 703.98216 0.57% 17.5 50s 22700 5370 cutoff 28 708.00000 704.18824 0.54% 17.1 55s 26056 5504 705.56099 26 71 708.00000 704.37216 0.51% 16.9 60s 28995 5454 cutoff 32 708.00000 704.54960 0.49% 16.7 65s 32368 5268 706.50000 26 77 708.00000 704.73058 0.46% 16.5 70s 35367 5059 706.98208 30 66 708.00000 704.89177 0.44% 16.4 75s 37209 4862 cutoff 39 708.00000 705.00000 0.42% 16.3 87s 38104 4769 706.82515 30 76 708.00000 705.04225 0.42% 16.2 90s 41471 4225 cutoff 28 708.00000 705.25411 0.39% 16.1 95s 44814 3459 706.63220 27 78 708.00000 705.49667 0.35% 15.9 100s 48464 2220 706.14134 44 67 708.00000 705.83333 0.31% 15.7 105s 51429 554 cutoff 31 708.00000 706.46230 0.22% 15.4 110s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 52097 nodes (796870 simplex iterations) in 111.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (4, 17), (4, 45), (8, 36), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 56), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 40), (33, 51), (34, 64), (36, 54), (39, 66), (41, 45), (42, 57), (42, 65), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (14, 55), (14, 58), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (28, 53), (30, 46), (30, 49), (35, 47), (35, 53), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] Optimize a model with 488 rows, 2850 columns and 179679 nonzeros Presolve time: 0.12s Presolved: 488 rows, 2850 columns, 179679 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 239 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08522 0 97 716.00000 696.08522 2.78% - 0s 0 0 696.08522 0 91 716.00000 696.08522 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27595 0 96 716.00000 696.27595 2.75% - 1s 0 0 696.28578 0 102 716.00000 696.28578 2.75% - 1s 0 0 696.32354 0 102 716.00000 696.32354 2.75% - 1s 0 0 696.32354 0 104 716.00000 696.32354 2.75% - 1s 0 0 696.41232 0 104 716.00000 696.41232 2.74% - 2s 0 0 696.48414 0 102 716.00000 696.48414 2.73% - 2s 0 0 696.50087 0 102 716.00000 696.50087 2.72% - 2s 0 0 696.57046 0 102 716.00000 696.57046 2.71% - 2s 0 0 696.58858 0 109 716.00000 696.58858 2.71% - 2s 0 0 696.60983 0 111 716.00000 696.60983 2.71% - 2s 0 0 696.62655 0 107 716.00000 696.62655 2.71% - 2s 0 0 696.62655 0 109 716.00000 696.62655 2.71% - 2s 0 0 696.63702 0 106 716.00000 696.63702 2.70% - 2s 0 0 696.63993 0 110 716.00000 696.63993 2.70% - 2s 0 0 696.63993 0 111 716.00000 696.63993 2.70% - 2s 0 0 696.64159 0 111 716.00000 696.64159 2.70% - 2s 0 0 696.65652 0 106 716.00000 696.65652 2.70% - 3s 0 0 696.65743 0 108 716.00000 696.65743 2.70% - 3s 0 0 696.66886 0 105 716.00000 696.66886 2.70% - 3s 0 0 696.66984 0 109 716.00000 696.66984 2.70% - 3s 0 0 696.67050 0 110 716.00000 696.67050 2.70% - 3s 0 0 696.67461 0 111 716.00000 696.67461 2.70% - 3s 0 0 696.67721 0 112 716.00000 696.67721 2.70% - 3s 0 0 696.69043 0 106 716.00000 696.69043 2.70% - 3s 0 0 696.69076 0 107 716.00000 696.69076 2.70% - 3s 0 0 696.69086 0 109 716.00000 696.69086 2.70% - 3s 0 0 696.69390 0 107 716.00000 696.69390 2.70% - 4s 0 0 696.69401 0 111 716.00000 696.69401 2.70% - 4s 0 2 696.69408 0 111 716.00000 696.69408 2.70% - 4s 27 29 701.96765 18 78 716.00000 696.82666 2.68% 27.7 5s H 74 74 713.0000000 696.82666 2.27% 21.0 6s H 600 427 711.0000000 698.28689 1.79% 15.5 7s 614 437 702.53846 11 99 711.00000 698.28689 1.79% 15.1 10s H 1111 594 710.0000000 699.21260 1.52% 19.7 13s * 1543 668 51 709.0000000 699.83578 1.29% 19.1 14s 2011 875 704.89984 21 80 709.00000 700.47368 1.20% 18.5 15s H 2203 876 708.0000000 700.62747 1.04% 18.6 15s 3044 1130 701.96356 30 84 708.00000 700.81654 1.01% 19.5 20s 4886 1424 705.99488 39 70 708.00000 701.76730 0.88% 19.2 25s 6926 2095 706.91111 40 55 708.00000 702.46835 0.78% 18.9 30s 8998 2641 706.91446 37 78 708.00000 703.02029 0.70% 18.7 35s 11131 3075 704.75452 32 76 708.00000 703.45492 0.64% 18.5 40s 13815 3423 705.40401 29 73 708.00000 703.85714 0.59% 18.3 45s 16264 3627 705.42827 31 72 708.00000 704.18182 0.54% 18.0 50s 18823 3647 706.44633 39 76 708.00000 704.47111 0.50% 17.8 55s 21886 3525 704.97944 33 79 708.00000 704.77132 0.46% 17.5 60s 25375 3146 705.34426 37 81 708.00000 705.09693 0.41% 17.1 65s 28790 2469 cutoff 38 708.00000 705.45455 0.36% 16.8 70s 31759 1458 706.79012 34 68 708.00000 705.85714 0.30% 16.5 75s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Mod-K: 1 Explored 34259 nodes (549413 simplex iterations) in 78.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 57), (4, 45), (6, 16), (6, 38), (8, 9), (8, 36), (9, 47), (10, 33), (10, 40), (14, 55), (14, 58), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 36), (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, 62), (29, 75), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(39, 66), (11, 39), (11, 59), (12, 66), (12, 67), (13, 73), (13, 41), (15, 54), (15, 60), (59, 73), (60, 67)] Optimize a model with 490 rows, 2850 columns and 180691 nonzeros Presolve time: 0.12s Presolved: 490 rows, 2850 columns, 180691 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 218 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 720.0000000 695.43817 3.41% - 0s 0 0 696.08500 0 97 720.00000 696.08500 3.32% - 0s 0 0 696.08500 0 91 720.00000 696.08500 3.32% - 1s 0 0 696.24980 0 97 720.00000 696.24980 3.30% - 1s 0 0 696.24980 0 99 720.00000 696.24980 3.30% - 1s 0 0 696.27093 0 100 720.00000 696.27093 3.30% - 1s 0 0 696.27834 0 98 720.00000 696.27834 3.29% - 1s 0 0 696.28793 0 103 720.00000 696.28793 3.29% - 1s 0 0 696.42670 0 101 720.00000 696.42670 3.27% - 1s 0 0 696.56680 0 102 720.00000 696.56680 3.25% - 1s 0 0 696.59420 0 103 720.00000 696.59420 3.25% - 2s 0 0 696.59721 0 101 720.00000 696.59721 3.25% - 2s 0 0 696.60068 0 107 720.00000 696.60068 3.25% - 2s 0 0 696.64014 0 103 720.00000 696.64014 3.24% - 2s 0 0 696.64014 0 104 720.00000 696.64014 3.24% - 2s 0 0 696.64595 0 106 720.00000 696.64595 3.24% - 2s 0 0 696.64595 0 107 720.00000 696.64595 3.24% - 2s 0 0 696.64595 0 108 720.00000 696.64595 3.24% - 2s 0 0 696.64595 0 109 720.00000 696.64595 3.24% - 2s 0 2 696.64910 0 109 720.00000 696.64910 3.24% - 3s * 73 70 47 708.0000000 698.53358 1.34% 25.1 3s 575 363 703.22598 13 80 708.00000 700.17686 1.10% 21.1 5s 1877 709 701.13914 22 82 708.00000 701.10526 0.97% 21.2 10s 3758 1475 704.40506 25 85 708.00000 702.24098 0.81% 19.6 15s 5710 2101 706.46377 27 72 708.00000 702.83333 0.73% 18.9 20s 7714 2641 703.37818 20 95 708.00000 703.23077 0.67% 18.5 25s 9746 3103 706.55392 26 76 708.00000 703.50000 0.64% 18.1 30s 12162 3503 706.66667 23 40 708.00000 703.80000 0.59% 17.8 35s 14533 3729 704.84892 26 63 708.00000 704.09091 0.55% 17.5 40s 17555 3973 706.24167 25 85 708.00000 704.39636 0.51% 17.2 45s 21024 4079 cutoff 25 708.00000 704.68269 0.47% 16.7 50s 24629 3962 704.99065 22 67 708.00000 704.96731 0.43% 16.3 55s 28094 3509 706.40000 25 56 708.00000 705.25281 0.39% 16.0 60s 31754 2672 707.00000 27 68 708.00000 705.60641 0.34% 15.7 65s 35579 1017 706.65517 31 57 708.00000 706.20317 0.25% 15.4 70s Cutting planes: Gomory: 1 MIR: 1 Zero half: 11 Explored 36874 nodes (556537 simplex iterations) in 71.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(9, 47), (9, 54), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (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), (50, 64), (66, 67)] adding cut for [(6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (8, 36), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (28, 58), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] Optimize a model with 492 rows, 2850 columns and 181307 nonzeros Presolve time: 0.12s Presolved: 492 rows, 2850 columns, 181307 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 218 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 720.0000000 695.43817 3.41% - 0s 0 0 696.08500 0 97 720.00000 696.08500 3.32% - 0s 0 0 696.08500 0 91 720.00000 696.08500 3.32% - 1s 0 0 696.24980 0 97 720.00000 696.24980 3.30% - 1s 0 0 696.24980 0 99 720.00000 696.24980 3.30% - 1s 0 0 696.27093 0 100 720.00000 696.27093 3.30% - 1s 0 0 696.27598 0 98 720.00000 696.27598 3.30% - 1s 0 0 696.29384 0 103 720.00000 696.29384 3.29% - 1s 0 0 696.32240 0 102 720.00000 696.32240 3.29% - 2s 0 0 696.34005 0 102 720.00000 696.34005 3.29% - 2s 0 0 696.38014 0 105 720.00000 696.38014 3.28% - 2s 0 0 696.39848 0 105 720.00000 696.39848 3.28% - 2s 0 0 696.44158 0 104 720.00000 696.44158 3.27% - 2s 0 0 696.45263 0 99 720.00000 696.45263 3.27% - 2s 0 0 696.46989 0 102 720.00000 696.46989 3.27% - 2s 0 0 696.47197 0 102 720.00000 696.47197 3.27% - 2s 0 0 696.47268 0 106 720.00000 696.47268 3.27% - 2s 0 0 696.57381 0 107 720.00000 696.57381 3.25% - 2s 0 0 696.57381 0 108 720.00000 696.57381 3.25% - 2s 0 0 696.58286 0 106 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 107 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 108 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 109 720.00000 696.58286 3.25% - 3s 0 2 696.59682 0 109 720.00000 696.59682 3.25% - 3s 227 198 705.60929 20 78 720.00000 697.42433 3.14% 20.1 5s * 389 292 63 716.0000000 697.68079 2.56% 19.5 5s * 440 235 34 711.0000000 697.95612 1.83% 19.9 5s * 442 208 36 710.0000000 697.95612 1.70% 19.9 5s H 600 261 709.0000000 698.63071 1.46% 20.2 6s 1034 426 707.53333 37 55 709.00000 699.19757 1.38% 21.7 10s * 2729 1148 39 708.0000000 701.09061 0.98% 19.9 14s 2900 1243 705.36765 27 70 708.00000 701.25621 0.95% 19.8 15s 4669 1961 703.98736 29 73 708.00000 702.00324 0.85% 19.2 20s 6730 2622 703.57796 24 80 708.00000 702.52381 0.77% 18.8 25s 8686 3225 706.30769 32 69 708.00000 702.89695 0.72% 18.5 30s 10868 3783 704.00000 28 70 708.00000 703.19505 0.68% 18.2 35s 13286 4289 706.95455 32 74 708.00000 703.49024 0.64% 18.0 40s 15245 4639 704.84444 27 76 708.00000 703.66702 0.61% 17.8 45s 18321 5088 cutoff 34 708.00000 703.89674 0.58% 17.3 50s 21654 5425 706.50000 34 40 708.00000 704.14886 0.54% 16.9 55s 25093 5664 706.51266 31 58 708.00000 704.35936 0.51% 16.6 60s 28551 5771 704.95551 31 74 708.00000 704.54877 0.49% 16.3 65s 31839 5703 706.79777 34 75 708.00000 704.72500 0.46% 16.1 70s 34830 5483 706.97207 29 73 708.00000 704.89662 0.44% 16.0 75s 37633 5224 706.68254 30 67 708.00000 705.04669 0.42% 15.8 80s 41204 4751 cutoff 30 708.00000 705.23982 0.39% 15.6 85s 44761 4061 706.57232 31 70 708.00000 705.47115 0.36% 15.4 90s 48307 2985 cutoff 33 708.00000 705.75000 0.32% 15.3 95s 51310 1726 cutoff 36 708.00000 706.06329 0.27% 15.1 100s Cutting planes: Gomory: 9 MIR: 3 Zero half: 5 Explored 53770 nodes (794133 simplex iterations) in 102.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (24, 50), (24, 57), (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), (62, 65)] adding cut for [(48, 49), (35, 53), (6, 38), (6, 16), (14, 55), (14, 28), (16, 58), (37, 72), (37, 70), (21, 38), (21, 71), (22, 48), (22, 70), (55, 58), (28, 53), (61, 71), (61, 72), (30, 46), (30, 49)] Optimize a model with 494 rows, 2850 columns and 181797 nonzeros Presolve time: 0.12s Presolved: 494 rows, 2850 columns, 181797 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 218 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 720.0000000 695.43817 3.41% - 0s 0 0 696.08500 0 97 720.00000 696.08500 3.32% - 0s 0 0 696.08500 0 91 720.00000 696.08500 3.32% - 1s 0 0 696.24980 0 97 720.00000 696.24980 3.30% - 1s 0 0 696.24980 0 99 720.00000 696.24980 3.30% - 1s 0 0 696.27093 0 100 720.00000 696.27093 3.30% - 1s 0 0 696.27598 0 98 720.00000 696.27598 3.30% - 1s 0 0 696.29384 0 103 720.00000 696.29384 3.29% - 1s 0 0 696.32240 0 102 720.00000 696.32240 3.29% - 2s 0 0 696.34005 0 102 720.00000 696.34005 3.29% - 2s 0 0 696.38014 0 105 720.00000 696.38014 3.28% - 2s 0 0 696.39848 0 105 720.00000 696.39848 3.28% - 2s 0 0 696.44158 0 104 720.00000 696.44158 3.27% - 2s 0 0 696.45263 0 99 720.00000 696.45263 3.27% - 2s 0 0 696.46989 0 102 720.00000 696.46989 3.27% - 2s 0 0 696.47197 0 102 720.00000 696.47197 3.27% - 2s 0 0 696.47268 0 106 720.00000 696.47268 3.27% - 2s 0 0 696.57381 0 107 720.00000 696.57381 3.25% - 2s 0 0 696.57381 0 108 720.00000 696.57381 3.25% - 2s 0 0 696.58286 0 106 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 107 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 108 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 109 720.00000 696.58286 3.25% - 3s 0 0 696.58286 0 107 720.00000 696.58286 3.25% - 3s 0 2 696.59682 0 107 720.00000 696.59682 3.25% - 3s * 179 158 52 717.0000000 697.13755 2.77% 20.6 4s * 188 153 58 715.0000000 697.13755 2.50% 20.1 4s 237 198 712.44828 38 66 715.00000 697.42433 2.46% 20.4 5s * 563 330 39 711.0000000 698.61523 1.74% 19.7 5s 1100 619 707.53846 38 54 711.00000 698.99011 1.69% 21.8 10s H 1387 612 709.0000000 699.57717 1.33% 21.3 10s * 2029 711 42 708.0000000 700.53583 1.05% 20.7 12s 2933 1123 702.28571 24 82 708.00000 701.36060 0.94% 20.2 15s 4747 1826 705.90244 25 75 708.00000 702.29530 0.81% 19.5 20s 6625 2369 705.05136 27 86 708.00000 702.76536 0.74% 19.0 25s 8450 2817 706.76316 27 64 708.00000 703.12385 0.69% 18.7 30s 10600 3205 706.50000 33 20 708.00000 703.50373 0.64% 18.3 35s 13131 3559 cutoff 29 708.00000 703.81942 0.59% 18.0 40s 15165 3719 704.94667 26 77 708.00000 704.07143 0.55% 17.7 45s 18062 3878 705.75000 30 53 708.00000 704.35576 0.51% 17.4 50s 21374 3831 705.51220 31 78 708.00000 704.63477 0.48% 16.9 55s 23911 3731 706.08667 35 74 708.00000 704.83800 0.45% 16.7 60s 27267 3427 706.98566 32 63 708.00000 705.11394 0.41% 16.4 65s 30601 2812 706.86302 27 85 708.00000 705.41808 0.36% 16.1 70s 33810 1768 706.63786 31 67 708.00000 705.82011 0.31% 15.8 75s Cutting planes: Gomory: 4 MIR: 3 Zero half: 3 Mod-K: 1 Explored 36755 nodes (564140 simplex iterations) in 79.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (8, 54), (11, 32), (11, 73), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (31, 75), (32, 56), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 495 rows, 2850 columns and 182617 nonzeros Presolve time: 0.12s Presolved: 495 rows, 2850 columns, 182617 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 218 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 720.0000000 695.43817 3.41% - 0s 0 0 696.08500 0 97 720.00000 696.08500 3.32% - 0s 0 0 696.08500 0 91 720.00000 696.08500 3.32% - 1s 0 0 696.24980 0 97 720.00000 696.24980 3.30% - 1s 0 0 696.24980 0 99 720.00000 696.24980 3.30% - 1s 0 0 696.27093 0 100 720.00000 696.27093 3.30% - 1s 0 0 696.27598 0 98 720.00000 696.27598 3.30% - 1s 0 0 696.29384 0 103 720.00000 696.29384 3.29% - 2s 0 0 696.32240 0 102 720.00000 696.32240 3.29% - 2s 0 0 696.34005 0 102 720.00000 696.34005 3.29% - 2s 0 0 696.38014 0 105 720.00000 696.38014 3.28% - 2s 0 0 696.39848 0 105 720.00000 696.39848 3.28% - 2s 0 0 696.44158 0 104 720.00000 696.44158 3.27% - 2s 0 0 696.45263 0 99 720.00000 696.45263 3.27% - 2s 0 0 696.46989 0 102 720.00000 696.46989 3.27% - 2s 0 0 696.47197 0 102 720.00000 696.47197 3.27% - 2s 0 0 696.47268 0 106 720.00000 696.47268 3.27% - 2s 0 0 696.57501 0 108 720.00000 696.57501 3.25% - 2s 0 0 696.57501 0 109 720.00000 696.57501 3.25% - 2s 0 0 696.58275 0 108 720.00000 696.58275 3.25% - 3s 0 0 696.58275 0 111 720.00000 696.58275 3.25% - 3s 0 0 696.60117 0 100 720.00000 696.60117 3.25% - 3s 0 0 696.60117 0 105 720.00000 696.60117 3.25% - 3s 0 0 696.60438 0 106 720.00000 696.60438 3.25% - 3s 0 0 696.60578 0 112 720.00000 696.60578 3.25% - 3s 0 0 696.61519 0 111 720.00000 696.61519 3.25% - 3s 0 0 696.61519 0 112 720.00000 696.61519 3.25% - 3s 0 0 696.62002 0 108 720.00000 696.62002 3.25% - 3s 0 0 696.62083 0 111 720.00000 696.62083 3.25% - 4s 0 0 696.63666 0 106 720.00000 696.63666 3.24% - 4s 0 0 696.63981 0 107 720.00000 696.63981 3.24% - 4s 0 0 696.64143 0 108 720.00000 696.64143 3.24% - 4s 0 0 696.64143 0 109 720.00000 696.64143 3.24% - 4s 0 0 696.65602 0 110 720.00000 696.65602 3.24% - 4s 0 0 696.65766 0 114 720.00000 696.65766 3.24% - 4s 0 0 696.66218 0 114 720.00000 696.66218 3.24% - 4s 0 0 696.66693 0 115 720.00000 696.66693 3.24% - 4s 0 0 696.67160 0 114 720.00000 696.67160 3.24% - 5s 0 0 696.67389 0 113 720.00000 696.67389 3.24% - 5s 0 0 696.69853 0 112 720.00000 696.69853 3.24% - 5s 0 0 696.69853 0 114 720.00000 696.69853 3.24% - 5s 0 0 696.70336 0 113 720.00000 696.70336 3.24% - 5s 0 0 696.70427 0 111 720.00000 696.70427 3.24% - 5s 0 0 696.70445 0 113 720.00000 696.70445 3.24% - 5s 0 2 696.70458 0 113 720.00000 696.70458 3.24% - 6s * 94 92 57 712.0000000 697.04647 2.10% 24.4 7s 606 475 708.67647 29 109 712.00000 698.14078 1.95% 19.1 10s * 805 539 47 711.0000000 698.60203 1.74% 21.1 11s * 1174 538 38 708.0000000 699.64832 1.18% 21.7 13s 1304 555 705.60000 40 93 708.00000 700.02727 1.13% 21.4 15s 2827 841 703.18421 32 68 708.00000 701.33333 0.94% 20.3 20s 4670 1475 705.07811 38 62 708.00000 702.32609 0.80% 19.7 25s 6774 2131 706.85714 35 76 708.00000 702.86747 0.72% 18.9 30s 8875 2600 705.83388 39 72 708.00000 703.29605 0.66% 18.4 35s 11173 2996 705.97196 38 61 708.00000 703.67742 0.61% 18.0 40s 13640 3313 cutoff 39 708.00000 703.99771 0.57% 17.7 45s 16680 3439 706.98901 39 72 708.00000 704.32830 0.52% 17.4 50s 20223 3369 cutoff 42 708.00000 704.69231 0.47% 17.0 55s 23767 3002 705.90712 38 82 708.00000 705.06419 0.41% 16.6 60s 27086 2360 cutoff 44 708.00000 705.43401 0.36% 16.3 65s 30788 778 cutoff 38 708.00000 706.17333 0.26% 15.9 70s Cutting planes: Gomory: 4 MIR: 1 Zero half: 5 Mod-K: 1 Explored 31859 nodes (498232 simplex iterations) in 71.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 38), (6, 49), (7, 34), (9, 36), (9, 47), (14, 55), (14, 58), (16, 30), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 63), (23, 65), (29, 62), (29, 63), (30, 49), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 17), (4, 45), (8, 54), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (39, 66), (50, 57), (66, 67)] Optimize a model with 497 rows, 2850 columns and 183344 nonzeros Presolve time: 0.12s Presolved: 497 rows, 2850 columns, 183344 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 206 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 716.0000000 695.43817 2.87% - 0s 0 0 696.08513 0 97 716.00000 696.08513 2.78% - 0s 0 0 696.08513 0 91 716.00000 696.08513 2.78% - 1s 0 0 696.24980 0 97 716.00000 696.24980 2.76% - 1s 0 0 696.24980 0 99 716.00000 696.24980 2.76% - 1s 0 0 696.27093 0 100 716.00000 696.27093 2.76% - 1s 0 0 696.27803 0 97 716.00000 696.27803 2.75% - 1s 0 0 696.30374 0 101 716.00000 696.30374 2.75% - 1s 0 0 696.32153 0 102 716.00000 696.32153 2.75% - 1s 0 0 696.40606 0 103 716.00000 696.40606 2.74% - 1s 0 0 696.42832 0 104 716.00000 696.42832 2.73% - 2s 0 0 696.44424 0 106 716.00000 696.44424 2.73% - 2s 0 0 696.47348 0 106 716.00000 696.47348 2.73% - 2s 0 0 696.49221 0 109 716.00000 696.49221 2.72% - 2s 0 0 696.49432 0 110 716.00000 696.49432 2.72% - 2s 0 0 696.53492 0 107 716.00000 696.53492 2.72% - 2s 0 0 696.62683 0 104 716.00000 696.62683 2.71% - 2s 0 0 696.63041 0 108 716.00000 696.63041 2.71% - 2s 0 0 696.64121 0 110 716.00000 696.64121 2.70% - 2s 0 0 696.64520 0 110 716.00000 696.64520 2.70% - 2s 0 0 696.65768 0 107 716.00000 696.65768 2.70% - 2s 0 0 696.67050 0 103 716.00000 696.67050 2.70% - 2s 0 0 696.67334 0 110 716.00000 696.67334 2.70% - 2s 0 0 696.69263 0 111 716.00000 696.69263 2.70% - 3s 0 0 696.70943 0 108 716.00000 696.70943 2.69% - 3s 0 0 696.71281 0 111 716.00000 696.71281 2.69% - 3s 0 0 696.72896 0 104 716.00000 696.72896 2.69% - 3s 0 0 696.72936 0 107 716.00000 696.72936 2.69% - 3s 0 0 696.73020 0 106 716.00000 696.73020 2.69% - 3s 0 0 696.73020 0 107 716.00000 696.73020 2.69% - 3s 0 0 696.73082 0 106 716.00000 696.73082 2.69% - 3s 0 2 696.74002 0 106 716.00000 696.74002 2.69% - 4s H 54 54 715.0000000 696.78567 2.55% 22.4 5s * 86 77 58 709.0000000 696.78567 1.72% 21.8 5s 738 442 701.29652 16 84 709.00000 698.93416 1.42% 21.9 10s * 2011 739 42 708.0000000 701.07838 0.98% 20.3 13s 2541 968 705.89985 25 80 708.00000 701.46958 0.92% 19.9 15s 4639 1797 703.66398 19 83 708.00000 702.45588 0.78% 18.8 20s 6725 2474 706.15306 25 68 708.00000 702.94775 0.71% 18.1 25s 8658 2940 706.11236 24 70 708.00000 703.30175 0.66% 17.9 30s 10791 3365 706.42122 25 85 708.00000 703.59631 0.62% 17.5 35s 13269 3735 705.17857 24 75 708.00000 703.89286 0.58% 17.3 40s 15414 4013 706.26663 27 68 708.00000 704.10191 0.55% 17.1 45s 18129 4210 706.33529 25 68 708.00000 704.33333 0.52% 17.0 50s 21531 4295 706.94286 33 65 708.00000 704.61017 0.48% 16.5 55s 25001 4168 705.78313 22 62 708.00000 704.84791 0.45% 16.2 60s 28243 3924 cutoff 28 708.00000 705.03726 0.42% 15.9 65s 31904 3430 706.78571 30 74 708.00000 705.32895 0.38% 15.6 70s 35291 2583 706.66569 27 66 708.00000 705.63277 0.33% 15.4 75s 38498 1300 cutoff 26 708.00000 706.05263 0.28% 15.1 80s Cutting planes: Gomory: 9 MIR: 2 Zero half: 6 Explored 40404 nodes (598911 simplex iterations) in 82.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 36), (9, 47), (14, 28), (14, 55), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (30, 46), (30, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(34, 64), (32, 56), (7, 34), (8, 54), (11, 32), (11, 39), (12, 67), (12, 66), (15, 54), (15, 60), (50, 57), (19, 51), (19, 25), (25, 50), (24, 64), (24, 57), (26, 51), (26, 56), (60, 67), (39, 66)] Optimize a model with 499 rows, 2850 columns and 183807 nonzeros Presolve time: 0.12s Presolved: 499 rows, 2850 columns, 183807 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 206 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 710.0000000 695.43817 2.05% - 0s 0 0 696.08513 0 97 710.00000 696.08513 1.96% - 0s 0 0 696.08513 0 91 710.00000 696.08513 1.96% - 1s 0 0 696.24980 0 97 710.00000 696.24980 1.94% - 1s 0 0 696.25954 0 96 710.00000 696.25954 1.94% - 1s 0 0 696.27066 0 99 710.00000 696.27066 1.93% - 1s 0 0 696.28912 0 101 710.00000 696.28912 1.93% - 1s 0 0 696.36479 0 106 710.00000 696.36479 1.92% - 1s 0 0 696.40026 0 106 710.00000 696.40026 1.92% - 1s 0 0 696.40507 0 109 710.00000 696.40507 1.91% - 1s 0 0 696.45057 0 103 710.00000 696.45057 1.91% - 1s 0 0 696.60520 0 101 710.00000 696.60520 1.89% - 1s 0 0 696.62950 0 101 710.00000 696.62950 1.88% - 1s 0 0 696.62950 0 103 710.00000 696.62950 1.88% - 1s 0 0 696.64189 0 105 710.00000 696.64189 1.88% - 1s 0 0 696.64270 0 106 710.00000 696.64270 1.88% - 2s 0 0 696.64270 0 105 710.00000 696.64270 1.88% - 2s 0 0 696.64270 0 107 710.00000 696.64270 1.88% - 2s 0 0 696.64846 0 101 710.00000 696.64846 1.88% - 2s 0 0 696.64846 0 104 710.00000 696.64846 1.88% - 2s 0 0 696.64958 0 108 710.00000 696.64958 1.88% - 2s 0 0 696.64958 0 108 710.00000 696.64958 1.88% - 2s 0 0 696.64958 0 108 710.00000 696.64958 1.88% - 2s 0 2 696.67333 0 108 710.00000 696.67333 1.88% - 2s 601 397 708.62000 26 97 710.00000 698.93675 1.56% 19.5 5s H 842 435 709.0000000 699.29730 1.37% 21.0 9s 1088 487 707.45217 28 69 709.00000 699.58190 1.33% 20.3 10s H 1192 450 708.0000000 699.71814 1.17% 19.8 10s 3114 987 705.65060 26 78 708.00000 701.95368 0.85% 18.8 15s 5162 1424 706.97399 26 66 708.00000 702.82688 0.73% 18.3 20s 7325 1658 706.62069 31 72 708.00000 703.43037 0.65% 17.9 25s 9577 1777 707.00000 29 38 708.00000 703.98254 0.57% 17.5 30s 12487 1625 706.56953 23 70 708.00000 704.55248 0.49% 17.2 35s 15153 1183 cutoff 39 708.00000 705.13174 0.41% 16.8 40s Cutting planes: Gomory: 6 MIR: 2 Zero half: 4 Explored 18228 nodes (294727 simplex iterations) in 44.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.080000000000e+02, best bound 7.080000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (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, 62), (22, 75), (23, 29), (23, 65), (24, 44), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (30, 46), (30, 49), (31, 75), (32, 56), (37, 48), (37, 70), (39, 66), (42, 43), (42, 57), (43, 65), (48, 49), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 500 rows, 2850 columns and 184888 nonzeros Presolve time: 0.12s Presolved: 500 rows, 2850 columns, 184888 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2820.0000000 Root relaxation: objective 6.954382e+02, 229 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 695.43817 0 91 2820.00000 695.43817 75.3% - 0s Another try with MIP start H 0 0 717.0000000 695.43817 3.01% - 0s 0 0 696.08522 0 98 717.00000 696.08522 2.92% - 0s 0 0 696.08522 0 91 717.00000 696.08522 2.92% - 1s 0 0 696.24980 0 97 717.00000 696.24980 2.89% - 1s 0 0 696.24980 0 99 717.00000 696.24980 2.89% - 1s 0 0 696.27093 0 100 717.00000 696.27093 2.89% - 1s 0 0 696.27803 0 97 717.00000 696.27803 2.89% - 1s 0 0 696.30374 0 101 717.00000 696.30374 2.89% - 1s 0 0 696.32153 0 102 717.00000 696.32153 2.88% - 1s 0 0 696.40606 0 103 717.00000 696.40606 2.87% - 1s 0 0 696.42832 0 104 717.00000 696.42832 2.87% - 2s 0 0 696.44424 0 106 717.00000 696.44424 2.87% - 2s 0 0 696.47348 0 106 717.00000 696.47348 2.86% - 2s 0 0 696.49221 0 109 717.00000 696.49221 2.86% - 2s 0 0 696.49432 0 110 717.00000 696.49432 2.86% - 2s 0 0 696.53492 0 106 717.00000 696.53492 2.85% - 2s 0 0 696.62683 0 104 717.00000 696.62683 2.84% - 2s 0 0 696.63041 0 108 717.00000 696.63041 2.84% - 2s 0 0 696.64121 0 110 717.00000 696.64121 2.84% - 2s 0 0 696.64520 0 110 717.00000 696.64520 2.84% - 2s 0 0 696.65768 0 107 717.00000 696.65768 2.84% - 2s 0 0 696.67020 0 102 717.00000 696.67020 2.84% - 2s 0 0 696.67426 0 110 717.00000 696.67426 2.83% - 2s 0 0 696.70612 0 109 717.00000 696.70612 2.83% - 3s 0 0 696.70737 0 108 717.00000 696.70737 2.83% - 3s 0 0 696.72108 0 104 717.00000 696.72108 2.83% - 3s 0 0 696.72108 0 106 717.00000 696.72108 2.83% - 3s 0 0 696.72175 0 110 717.00000 696.72175 2.83% - 3s 0 0 696.72177 0 112 717.00000 696.72177 2.83% - 3s 0 2 696.72185 0 112 717.00000 696.72185 2.83% - 3s 236 222 710.19697 65 68 717.00000 697.11347 2.77% 18.4 5s * 289 257 106 716.0000000 697.11347 2.64% 16.7 5s * 371 305 59 715.0000000 697.13082 2.50% 16.9 5s * 485 355 71 713.0000000 697.38221 2.19% 17.6 5s H 514 356 712.0000000 697.40545 2.05% 17.6 6s H 677 455 711.0000000 698.55357 1.75% 19.5 9s 807 500 702.54094 24 85 711.00000 698.57782 1.75% 20.4 10s H 855 456 709.0000000 698.57782 1.47% 20.6 10s * 2409 996 41 708.0000000 701.06953 0.98% 19.2 14s 2501 1037 706.46104 35 98 708.00000 701.13514 0.97% 19.1 15s 3465 1304 703.10210 34 90 708.00000 701.13514 0.97% 19.7 20s 5373 1540 703.36066 31 82 708.00000 701.74274 0.88% 19.2 25s 7138 2102 704.19611 38 80 708.00000 702.31818 0.80% 18.8 30s 9181 2767 705.72700 42 76 708.00000 702.73790 0.74% 18.3 35s 11330 3373 705.88854 38 73 708.00000 703.09442 0.69% 18.0 40s 14043 3975 cutoff 44 708.00000 703.43548 0.64% 17.7 45s 16534 4435 706.83648 46 71 708.00000 703.70909 0.61% 17.4 50s 19510 4864 705.79310 38 68 708.00000 703.95614 0.57% 17.1 55s 22498 5192 cutoff 40 708.00000 704.17961 0.54% 16.8 60s 25909 5334 706.92308 46 62 708.00000 704.41373 0.51% 16.4 65s 29370 5414 706.93314 35 85 708.00000 704.60000 0.48% 16.2 70s 32427 5369 706.27273 37 67 708.00000 704.77500 0.46% 15.9 75s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Explored 34369 nodes (544001 simplex iterations) in 77.74 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective 7.080000000000e+02, best bound 7.050000000000e+02, gap 0.4237% Gurobi 5.0.1 (linux64) logging started Fri Dec 7 16:50:38 2012