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 2525.0000000 Root relaxation: objective 7.375000e+02, 103 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 737.50000 0 8 2525.00000 737.50000 70.8% - 0s H 0 0 751.0000000 737.50000 1.80% - 0s 0 0 737.50000 0 6 751.00000 737.50000 1.80% - 0s 0 0 737.50000 0 6 751.00000 737.50000 1.80% - 0s * 0 0 0 738.0000000 738.00000 0.0% - 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 1 Explored 0 nodes (229 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.380000000000e+02, best bound 7.380000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 17), (4, 45), (6, 16), (6, 38), (8, 36), (9, 20), (9, 36), (10, 33), (10, 40), (11, 32), (11, 59), (14, 55), (14, 58), (16, 58), (17, 64), (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, 46), (28, 53), (29, 63), (29, 75), (30, 46), (30, 49), (32, 56), (33, 45), (34, 64), (34, 74), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (59, 73), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (12, 39), (12, 54), (15, 54), (15, 60), (60, 67)] Optimize a model with 78 rows, 2850 columns and 7152 nonzeros Presolve time: 0.01s Presolved: 78 rows, 2850 columns, 7152 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.440000e+02, 114 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 744.00000 0 6 2525.00000 744.00000 70.5% - 0s Another try with MIP start H 0 0 765.0000000 744.00000 2.75% - 0s * 0 0 0 745.0000000 745.00000 0.0% - 0s Cutting planes: MIR: 4 Zero half: 2 Explored 0 nodes (124 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.450000000000e+02, best bound 7.450000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 17), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (34, 64), (34, 74), (39, 59), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73)] adding cut for [(3, 75), (6, 16), (6, 38), (9, 36), (12, 54), (12, 66), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (29, 62), (29, 75), (36, 54), (37, 48), (37, 70), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 80 rows, 2850 columns and 7909 nonzeros Presolve time: 0.01s Presolved: 80 rows, 2850 columns, 7909 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.490000e+02, 125 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 749.00000 0 8 2525.00000 749.00000 70.3% - 0s Another try with MIP start H 0 0 750.0000000 749.00000 0.13% - 0s Explored 0 nodes (131 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.500000000000e+02, best bound 7.500000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 17), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 59), (12, 39), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 64), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (32, 66), (33, 45), (34, 64), (34, 74), (37, 48), (37, 70), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(3, 75), (3, 63), (29, 75), (29, 63)] adding cut for [(26, 56), (26, 51), (19, 56), (19, 51)] adding cut for [(24, 57), (24, 50), (25, 57), (25, 50)] Optimize a model with 84 rows, 2850 columns and 8747 nonzeros Presolve time: 0.01s Presolved: 84 rows, 2850 columns, 8747 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.530000e+02, 119 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 753.00000 0 14 2525.00000 753.00000 70.2% - 0s Another try with MIP start H 0 0 811.0000000 753.00000 7.15% - 0s 0 0 753.50000 0 10 811.00000 753.50000 7.09% - 0s 0 0 753.60000 0 26 811.00000 753.60000 7.08% - 0s H 0 0 754.0000000 753.60000 0.05% - 0s Cutting planes: MIR: 3 Zero half: 2 Explored 0 nodes (140 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.540000000000e+02, best bound 7.540000000000e+02, gap 0.0% adding cut for [(3, 63), (4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 66), (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), (29, 63), (29, 75), (32, 56), (33, 45), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73)] adding cut for [(6, 30), (6, 49), (9, 36), (12, 54), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (28, 46), (28, 53), (30, 46), (36, 54), (37, 48), (37, 70), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 74), (2, 34), (34, 74)] Optimize a model with 87 rows, 2850 columns and 9603 nonzeros Presolve time: 0.01s Presolved: 87 rows, 2850 columns, 9603 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.545000e+02, 117 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 754.50000 0 12 2525.00000 754.50000 70.1% - 0s Another try with MIP start H 0 0 799.0000000 754.50000 5.57% - 0s 0 0 755.50000 0 36 799.00000 755.50000 5.44% - 0s 0 0 755.50000 0 22 799.00000 755.50000 5.44% - 0s 0 0 755.50000 0 45 799.00000 755.50000 5.44% - 0s * 0 0 0 756.0000000 756.00000 0.0% - 0s Cutting planes: MIR: 3 Zero half: 6 Explored 0 nodes (148 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.560000000000e+02, best bound 7.560000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 34), (6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (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, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 46), (28, 53), (29, 62), (29, 63), (30, 46), (30, 49), (32, 56), (34, 74), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 88 rows, 2850 columns and 10878 nonzeros Presolve time: 0.01s Presolved: 88 rows, 2850 columns, 10878 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.576111e+02, 127 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 757.61111 0 30 2525.00000 757.61111 70.0% - 0s Another try with MIP start H 0 0 758.0000000 757.61111 0.05% - 0s Explored 0 nodes (129 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.580000000000e+02, best bound 7.580000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 25), (4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 59), (12, 39), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 50), (17, 64), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 62), (29, 63), (30, 46), (30, 49), (31, 49), (31, 75), (32, 66), (33, 45), (33, 51), (34, 74), (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 [(8, 9), (8, 54), (9, 36), (36, 54)] Optimize a model with 90 rows, 2850 columns and 12424 nonzeros Presolve time: 0.02s Presolved: 90 rows, 2850 columns, 12424 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.655000e+02, 145 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 765.50000 0 12 2525.00000 765.50000 69.7% - 0s Another try with MIP start H 0 0 806.0000000 765.50000 5.02% - 0s 0 0 766.50000 0 27 806.00000 766.50000 4.90% - 0s 0 0 766.66667 0 39 806.00000 766.66667 4.88% - 0s 0 0 767.12500 0 46 806.00000 767.12500 4.82% - 0s H 0 0 769.0000000 767.12500 0.24% - 0s 0 0 767.12500 0 44 769.00000 767.12500 0.24% - 0s 0 0 767.12500 0 9 769.00000 767.12500 0.24% - 0s 0 0 767.12500 0 21 769.00000 767.12500 0.24% - 0s 0 0 767.50000 0 37 769.00000 767.50000 0.20% - 0s 0 0 767.50000 0 26 769.00000 767.50000 0.20% - 0s H 0 0 768.0000000 767.50000 0.07% - 0s Cutting planes: Gomory: 5 Zero half: 5 Explored 0 nodes (332 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.680000000000e+02, best bound 7.680000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (6, 16), (6, 30), (10, 33), (10, 40), (11, 32), (11, 66), (14, 28), (14, 58), (16, 58), (19, 25), (19, 51), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (30, 49), (32, 56), (33, 45), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73)] adding cut for [(8, 36), (8, 54), (12, 67), (12, 54), (15, 36), (15, 60), (60, 67)] adding cut for [(37, 38), (37, 70), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72)] adding cut for [(9, 20), (9, 55), (20, 55)] Optimize a model with 94 rows, 2850 columns and 13099 nonzeros Presolve time: 0.02s Presolved: 94 rows, 2850 columns, 13099 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.655000e+02, 142 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 765.50000 0 12 2525.00000 765.50000 69.7% - 0s Another try with MIP start H 0 0 791.0000000 765.50000 3.22% - 0s 0 0 766.50000 0 27 791.00000 766.50000 3.10% - 0s 0 0 766.50000 0 12 791.00000 766.50000 3.10% - 0s 0 0 766.50000 0 27 791.00000 766.50000 3.10% - 0s 0 0 766.91667 0 47 791.00000 766.91667 3.04% - 0s 0 0 767.25000 0 43 791.00000 767.25000 3.00% - 0s 0 0 767.25000 0 45 791.00000 767.25000 3.00% - 0s 0 0 767.25000 0 46 791.00000 767.25000 3.00% - 0s 0 0 767.25000 0 46 791.00000 767.25000 3.00% - 0s H 0 0 774.0000000 767.25000 0.87% - 0s H 0 0 770.0000000 767.25000 0.36% - 0s 0 2 767.33333 0 46 770.00000 767.33333 0.35% - 0s * 6 4 4 769.0000000 768.00000 0.13% 7.8 0s * 7 1 5 768.0000000 768.00000 0.0% 7.4 0s Cutting planes: MIR: 4 Zero half: 5 Explored 8 nodes (423 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.680000000000e+02, best bound 7.680000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (9, 20), (9, 53), (10, 33), (10, 40), (11, 32), (11, 39), (14, 55), (14, 58), (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, 30), (28, 53), (30, 49), (31, 49), (32, 56), (33, 45), (37, 48), (37, 70), (39, 59), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (8, 36), (8, 54), (12, 66), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 96 rows, 2850 columns and 14162 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 95 rows, 2850 columns, 14141 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.660000e+02, 149 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 766.00000 0 34 2525.00000 766.00000 69.7% - 0s Another try with MIP start 0 0 767.25000 0 41 2525.00000 767.25000 69.6% - 0s 0 0 767.36364 0 49 2525.00000 767.36364 69.6% - 0s H 0 0 768.0000000 767.36364 0.08% - 0s Cutting planes: MIR: 5 Zero half: 1 Explored 0 nodes (181 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.680000000000e+02, best bound 7.680000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 17), (4, 45), (6, 16), (6, 38), (8, 54), (9, 20), (9, 55), (10, 33), (10, 40), (11, 32), (11, 66), (12, 54), (12, 67), (14, 55), (14, 58), (15, 36), (15, 60), (16, 58), (17, 64), (19, 25), (19, 51), (20, 36), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (33, 45), (34, 64), (37, 48), (37, 70), (39, 59), (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 97 rows, 2850 columns and 15647 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 96 rows, 2850 columns, 15626 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.691875e+02, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 769.18750 0 32 2525.00000 769.18750 69.5% - 0s Another try with MIP start 0 0 770.25000 0 19 2525.00000 770.25000 69.5% - 0s 0 0 770.44444 0 53 2525.00000 770.44444 69.5% - 0s H 0 0 790.0000000 770.44444 2.48% - 0s H 0 0 773.0000000 770.44444 0.33% - 0s 0 0 771.00000 0 14 773.00000 771.00000 0.26% - 0s 0 0 771.00000 0 28 773.00000 771.00000 0.26% - 0s 0 0 771.00000 0 33 773.00000 771.00000 0.26% - 0s 0 0 771.00000 0 8 773.00000 771.00000 0.26% - 0s 0 0 771.00000 0 13 773.00000 771.00000 0.26% - 0s 0 0 771.06667 0 34 773.00000 771.06667 0.25% - 0s 0 0 771.08511 0 62 773.00000 771.08511 0.25% - 0s 0 0 771.09091 0 52 773.00000 771.09091 0.25% - 0s 0 0 771.11765 0 51 773.00000 771.11765 0.24% - 0s 0 0 771.12808 0 59 773.00000 771.12808 0.24% - 0s 0 0 771.40000 0 33 773.00000 771.40000 0.21% - 0s 0 0 771.40000 0 38 773.00000 771.40000 0.21% - 0s 0 0 771.40000 0 38 773.00000 771.40000 0.21% - 0s H 0 0 772.0000000 771.40000 0.08% - 0s Cutting planes: Gomory: 1 Clique: 2 MIR: 2 Zero half: 4 Explored 0 nodes (367 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.720000000000e+02, best bound 7.720000000000e+02, gap 0.0% adding cut for [(9, 20), (9, 47), (11, 32), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 54), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 75), (32, 56), (36, 54), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 45), (2, 64), (2, 74), (3, 31), (3, 63), (4, 45), (4, 17), (40, 73), (13, 73), (17, 64), (10, 33), (10, 40), (63, 74)] adding cut for [(30, 49), (6, 49), (6, 30)] Optimize a model with 100 rows, 2850 columns and 16731 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 99 rows, 2850 columns, 16710 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.699375e+02, 150 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 769.93750 0 50 2525.00000 769.93750 69.5% - 0s Another try with MIP start H 0 0 772.0000000 769.93750 0.27% - 0s 0 0 770.96154 0 58 772.00000 770.96154 0.13% - 0s 0 0 770.96154 0 40 772.00000 770.96154 0.13% - 0s Cutting planes: Gomory: 2 Clique: 4 Zero half: 2 Explored 0 nodes (284 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.720000000000e+02, best bound 7.720000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 16), (6, 38), (9, 36), (9, 47), (12, 54), (12, 66), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (28, 58), (33, 45), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(3, 31), (3, 63), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (30, 49)] adding cut for [(32, 56), (39, 59), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (26, 56), (59, 73)] Optimize a model with 103 rows, 2850 columns and 17553 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 102 rows, 2850 columns, 17532 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.699512e+02, 164 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 769.95122 0 55 2525.00000 769.95122 69.5% - 0s Another try with MIP start H 0 0 832.0000000 769.95122 7.46% - 0s 0 0 770.96154 0 62 832.00000 770.96154 7.34% - 0s 0 0 771.26667 0 68 832.00000 771.26667 7.30% - 0s H 0 0 775.0000000 771.26667 0.48% - 0s 0 0 771.57746 0 72 775.00000 771.57746 0.44% - 0s 0 0 771.57746 0 51 775.00000 771.57746 0.44% - 0s 0 0 771.76543 0 69 775.00000 771.76543 0.42% - 0s 0 0 771.79330 0 73 775.00000 771.79330 0.41% - 0s 0 0 771.79330 0 71 775.00000 771.79330 0.41% - 0s 0 0 771.79371 0 78 775.00000 771.79371 0.41% - 0s 0 0 771.79371 0 78 775.00000 771.79371 0.41% - 0s 0 2 771.84002 0 78 775.00000 771.84002 0.41% - 0s * 1 1 1 772.0000000 772.00000 0.0% 15.0 0s Cutting planes: Gomory: 2 Clique: 1 Zero half: 8 Mod-K: 1 Explored 2 nodes (422 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.720000000000e+02, best bound 7.720000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (9, 36), (9, 53), (12, 54), (12, 66), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (28, 58), (29, 63), (29, 75), (30, 46), (30, 49), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] adding cut for [(33, 41), (33, 45), (4, 45), (4, 17), (39, 59), (40, 73), (10, 40), (10, 41), (11, 39), (11, 32), (17, 64), (50, 57), (19, 51), (19, 25), (25, 50), (32, 56), (24, 64), (24, 57), (26, 56), (26, 51), (59, 73)] Optimize a model with 105 rows, 2850 columns and 18504 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 104 rows, 2850 columns, 18483 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.701667e+02, 179 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 770.16667 0 50 2525.00000 770.16667 69.5% - 0s Another try with MIP start H 0 0 826.0000000 770.16667 6.76% - 0s 0 0 771.32759 0 58 826.00000 771.32759 6.62% - 0s 0 0 771.45333 0 69 826.00000 771.45333 6.60% - 0s H 0 0 776.0000000 771.45333 0.59% - 0s 0 0 771.77500 0 66 776.00000 771.77500 0.54% - 0s 0 0 771.77500 0 46 776.00000 771.77500 0.54% - 0s 0 0 771.77500 0 67 776.00000 771.77500 0.54% - 0s 0 0 771.85827 0 69 776.00000 771.85827 0.53% - 0s 0 0 771.88506 0 69 776.00000 771.88506 0.53% - 0s 0 0 771.89171 0 75 776.00000 771.89171 0.53% - 0s 0 0 771.94082 0 78 776.00000 771.94082 0.52% - 0s 0 0 771.95799 0 85 776.00000 771.95799 0.52% - 0s 0 0 771.97926 0 86 776.00000 771.97926 0.52% - 0s 0 0 771.98291 0 86 776.00000 771.98291 0.52% - 0s H 0 0 775.0000000 771.98291 0.39% - 0s 0 2 772.03187 0 86 775.00000 772.03187 0.38% - 0s * 6 2 6 773.0000000 772.87879 0.02% 11.8 0s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 7 nodes (518 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.730000000000e+02, best bound 7.730000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (3, 31), (3, 75), (4, 41), (4, 45), (19, 25), (19, 51), (23, 65), (24, 50), (24, 57), (25, 50), (29, 63), (29, 75), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65), (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)] adding cut for [(32, 66), (32, 56), (39, 66), (40, 73), (10, 40), (10, 26), (11, 39), (11, 59), (26, 56), (59, 73)] adding cut for [(36, 54), (12, 67), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 109 rows, 2850 columns and 19026 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 108 rows, 2850 columns, 19005 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.703750e+02, 198 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 770.37500 0 57 2525.00000 770.37500 69.5% - 0s Another try with MIP start H 0 0 778.0000000 770.37500 0.98% - 0s 0 0 770.97619 0 62 778.00000 770.97619 0.90% - 0s 0 0 770.97619 0 59 778.00000 770.97619 0.90% - 0s 0 0 771.79254 0 70 778.00000 771.79254 0.80% - 0s H 0 0 776.0000000 771.79254 0.54% - 0s 0 0 771.82234 0 71 776.00000 771.82234 0.54% - 0s 0 2 772.47908 0 71 776.00000 772.47908 0.45% - 0s H 11 8 773.0000000 772.47908 0.07% 0.1 0s Cutting planes: Gomory: 5 MIR: 1 Zero half: 7 Explored 11 nodes (755 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.730000000000e+02, best bound 7.730000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (3, 75), (4, 25), (4, 45), (6, 30), (6, 49), (9, 20), (9, 36), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (17, 52), (17, 64), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (29, 62), (29, 75), (30, 46), (32, 66), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 59), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] Optimize a model with 110 rows, 2850 columns and 20796 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 109 rows, 2850 columns, 20775 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.714186e+02, 191 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 771.41860 0 55 2525.00000 771.41860 69.4% - 0s Another try with MIP start H 0 0 778.0000000 771.41860 0.85% - 0s 0 0 772.12500 0 55 778.00000 772.12500 0.76% - 0s 0 0 772.12500 0 55 778.00000 772.12500 0.76% - 0s 0 0 772.65789 0 56 778.00000 772.65789 0.69% - 0s 0 0 772.68323 0 72 778.00000 772.68323 0.68% - 0s 0 0 772.77688 0 70 778.00000 772.77688 0.67% - 0s 0 0 772.93070 0 78 778.00000 772.93070 0.65% - 0s 0 0 772.93087 0 77 778.00000 772.93087 0.65% - 0s 0 0 772.95100 0 69 778.00000 772.95100 0.65% - 0s 0 0 772.95255 0 78 778.00000 772.95255 0.65% - 0s 0 0 772.95256 0 78 778.00000 772.95256 0.65% - 0s 0 0 772.95256 0 78 778.00000 772.95256 0.65% - 0s H 0 0 774.0000000 772.95256 0.14% - 0s 0 0 cutoff 0 774.00000 774.00000 0.0% - 0s Cutting planes: Gomory: 1 MIR: 3 Zero half: 8 Mod-K: 1 Explored 1 nodes (549 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.740000000000e+02, best bound 7.740000000000e+02, gap 0.0% adding cut for [(3, 31), (3, 63), (4, 41), (4, 45), (10, 33), (10, 40), (11, 32), (11, 39), (13, 41), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (32, 56), (33, 45), (39, 59), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (21, 38), (21, 71), (55, 58), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] adding cut for [(66, 67), (12, 66), (12, 54), (15, 36), (15, 60), (20, 36), (20, 54), (60, 67)] adding cut for [(2, 64), (2, 74), (34, 64), (34, 74)] Optimize a model with 114 rows, 2850 columns and 21462 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 113 rows, 2850 columns, 21441 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.720000e+02, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 772.00000 0 56 2525.00000 772.00000 69.4% - 0s Another try with MIP start H 0 0 784.0000000 772.00000 1.53% - 0s 0 0 773.03659 0 72 784.00000 773.03659 1.40% - 0s 0 0 773.03659 0 56 784.00000 773.03659 1.40% - 0s 0 0 773.15726 0 78 784.00000 773.15726 1.38% - 0s H 0 0 781.0000000 773.15726 1.00% - 0s 0 0 773.44752 0 79 781.00000 773.44752 0.97% - 0s 0 2 773.72146 0 79 781.00000 773.72146 0.93% - 0s H 1 2 778.0000000 773.72146 0.55% 1.0 0s H 7 5 777.0000000 774.21081 0.36% 0.1 0s H 13 9 776.0000000 774.50000 0.19% 29.9 0s Cutting planes: Gomory: 3 Zero half: 5 Explored 21 nodes (1094 simplex iterations) in 0.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.760000000000e+02, best bound 7.760000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 41), (4, 45), (10, 33), (10, 40), (11, 39), (11, 59), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 66), (33, 45), (34, 64), (34, 74), (39, 66), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73)] adding cut for [(28, 58), (9, 36), (9, 53), (12, 67), (12, 54), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (16, 30), (20, 54), (20, 55), (60, 67)] adding cut for [(6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(3, 31), (3, 63), (23, 62), (23, 63), (31, 75), (29, 75), (29, 62)] Optimize a model with 118 rows, 2850 columns and 22049 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 117 rows, 2850 columns, 22028 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.725625e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 772.56250 0 61 2525.00000 772.56250 69.4% - 0s Another try with MIP start H 0 0 780.0000000 772.56250 0.95% - 0s 0 0 773.59770 0 64 780.00000 773.59770 0.82% - 0s 0 0 773.59770 0 62 780.00000 773.59770 0.82% - 0s 0 0 773.62370 0 73 780.00000 773.62370 0.82% - 0s 0 0 773.90792 0 78 780.00000 773.90792 0.78% - 0s 0 0 774.13324 0 81 780.00000 774.13324 0.75% - 0s 0 0 774.29167 0 66 780.00000 774.29167 0.73% - 0s 0 0 774.29167 0 72 780.00000 774.29167 0.73% - 0s H 0 0 779.0000000 774.29167 0.60% - 0s H 0 0 776.0000000 774.29167 0.22% - 0s 0 1 774.44444 0 72 776.00000 774.44444 0.20% - 0s Explored 3 nodes (554 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.760000000000e+02, best bound 7.760000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 38), (6, 49), (8, 36), (10, 26), (10, 40), (12, 54), (12, 67), (13, 59), (14, 28), (14, 55), (15, 36), (15, 60), (16, 30), (16, 58), (19, 51), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (29, 62), (29, 75), (30, 49), (33, 45), (33, 51), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 66), (11, 32), (11, 39), (39, 66)] Optimize a model with 120 rows, 2850 columns and 23231 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 119 rows, 2850 columns, 23210 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.726463e+02, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 772.64628 0 68 2525.00000 772.64628 69.4% - 0s Another try with MIP start H 0 0 784.0000000 772.64628 1.45% - 0s 0 0 773.64134 0 73 784.00000 773.64134 1.32% - 0s 0 0 773.64134 0 68 784.00000 773.64134 1.32% - 0s 0 0 773.83299 0 72 784.00000 773.83299 1.30% - 0s 0 0 774.13354 0 76 784.00000 774.13354 1.26% - 0s 0 0 774.17331 0 82 784.00000 774.17331 1.25% - 0s 0 0 774.30442 0 80 784.00000 774.30442 1.24% - 0s 0 0 774.43023 0 79 784.00000 774.43023 1.22% - 0s 0 0 774.43691 0 84 784.00000 774.43691 1.22% - 0s 0 0 774.50712 0 83 784.00000 774.50712 1.21% - 0s 0 0 774.50980 0 84 784.00000 774.50980 1.21% - 0s 0 0 774.50980 0 84 784.00000 774.50980 1.21% - 0s H 0 0 780.0000000 774.50980 0.70% - 0s 0 2 774.51185 0 84 780.00000 774.51185 0.70% - 0s H 27 22 779.0000000 775.00000 0.51% 12.4 0s * 35 3 9 776.0000000 776.00000 0.0% 12.5 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 36 nodes (972 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.760000000000e+02, best bound 7.760000000000e+02, gap 0.0% adding cut for [(4, 41), (4, 45), (6, 30), (6, 38), (14, 28), (14, 55), (16, 30), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (28, 53), (29, 62), (29, 75), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (39, 66), (39, 59), (8, 54), (9, 36), (9, 20), (10, 40), (10, 26), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (15, 36), (15, 60), (40, 73), (20, 54), (26, 56), (60, 67)] Optimize a model with 122 rows, 2850 columns and 24051 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 121 rows, 2850 columns, 24030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.729815e+02, 199 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 772.98148 0 71 2525.00000 772.98148 69.4% - 0s Another try with MIP start H 0 0 778.0000000 772.98148 0.65% - 0s H 0 0 777.0000000 772.98148 0.52% - 0s 0 0 773.93007 0 76 777.00000 773.93007 0.40% - 0s 0 0 773.93007 0 69 777.00000 773.93007 0.40% - 0s 0 0 773.94089 0 78 777.00000 773.94089 0.39% - 0s 0 0 774.15647 0 80 777.00000 774.15647 0.37% - 0s 0 0 774.34943 0 82 777.00000 774.34943 0.34% - 0s 0 1 774.39497 0 82 777.00000 774.39497 0.34% - 0s Cutting planes: Gomory: 10 Clique: 1 Zero half: 9 Explored 108 nodes (1616 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.770000000000e+02, best bound 7.770000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 64), (3, 31), (3, 63), (4, 41), (4, 45), (6, 30), (6, 38), (8, 54), (9, 20), (9, 36), (10, 33), (10, 40), (11, 39), (11, 59), (12, 54), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (31, 49), (32, 56), (32, 66), (33, 45), (34, 64), (34, 74), (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), (63, 74), (70, 72)] adding cut for [(22, 75), (22, 62), (29, 75), (29, 62)] Optimize a model with 124 rows, 2850 columns and 25653 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 123 rows, 2850 columns, 25632 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.732439e+02, 217 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 773.24390 0 59 2525.00000 773.24390 69.4% - 0s Another try with MIP start H 0 0 838.0000000 773.24390 7.73% - 0s 0 0 774.55077 0 75 838.00000 774.55077 7.57% - 0s H 0 0 780.0000000 774.55077 0.70% - 0s 0 0 774.59964 0 75 780.00000 774.59964 0.69% - 0s 0 0 774.59964 0 59 780.00000 774.59964 0.69% - 0s 0 0 774.59964 0 75 780.00000 774.59964 0.69% - 0s 0 0 774.71014 0 82 780.00000 774.71014 0.68% - 0s 0 0 774.84934 0 86 780.00000 774.84934 0.66% - 0s 0 0 774.88880 0 90 780.00000 774.88880 0.66% - 0s 0 0 774.91239 0 89 780.00000 774.91239 0.65% - 0s 0 0 774.94831 0 90 780.00000 774.94831 0.65% - 0s 0 0 774.95620 0 92 780.00000 774.95620 0.65% - 0s 0 0 774.95620 0 92 780.00000 774.95620 0.65% - 0s 0 2 774.95661 0 92 780.00000 774.95661 0.65% - 0s * 26 16 21 779.0000000 775.47059 0.45% 10.7 0s * 43 11 13 778.0000000 775.53319 0.32% 10.3 0s * 86 5 7 777.0000000 775.89130 0.14% 9.8 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 92 nodes (1439 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.770000000000e+02, best bound 7.770000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 31), (3, 63), (4, 17), (4, 45), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 63), (29, 75), (33, 45), (33, 51), (34, 64), (34, 74), (42, 43), (42, 44), (43, 65), (50, 57)] 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, 54), (13, 59), (15, 36), (15, 60), (59, 73), (20, 55), (55, 60), (26, 56)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 58), (14, 28), (48, 49), (21, 71), (21, 38), (28, 53), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 127 rows, 2850 columns and 26308 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 126 rows, 2850 columns, 26287 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.733121e+02, 226 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 773.31206 0 68 2525.00000 773.31206 69.4% - 0s Another try with MIP start H 0 0 777.0000000 773.31206 0.47% - 0s 0 0 774.36675 0 74 777.00000 774.36675 0.34% - 0s 0 0 774.36675 0 65 777.00000 774.36675 0.34% - 0s 0 0 774.56098 0 70 777.00000 774.56098 0.31% - 0s 0 0 774.80588 0 81 777.00000 774.80588 0.28% - 0s 0 1 774.81910 0 81 777.00000 774.81910 0.28% - 0s Cutting planes: Gomory: 1 MIR: 1 Zero half: 1 Explored 11 nodes (764 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.770000000000e+02, best bound 7.770000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 41), (4, 45), (6, 30), (6, 38), (8, 36), (10, 33), (10, 40), (11, 39), (11, 59), (12, 54), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 63), (32, 56), (32, 66), (33, 45), (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), (63, 74), (70, 72)] Optimize a model with 128 rows, 2850 columns and 27793 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 127 rows, 2850 columns, 27772 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.745357e+02, 257 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 774.53567 0 76 2525.00000 774.53567 69.3% - 0s Another try with MIP start H 0 0 779.0000000 774.53567 0.57% - 0s 0 0 775.29369 0 78 779.00000 775.29369 0.48% - 0s 0 0 775.29369 0 75 779.00000 775.29369 0.48% - 0s 0 0 775.29369 0 78 779.00000 775.29369 0.48% - 0s 0 0 775.31237 0 82 779.00000 775.31237 0.47% - 0s 0 0 775.37573 0 85 779.00000 775.37573 0.47% - 0s 0 0 775.39469 0 89 779.00000 775.39469 0.46% - 0s 0 0 775.41043 0 91 779.00000 775.41043 0.46% - 0s 0 0 775.46025 0 89 779.00000 775.46025 0.45% - 0s 0 0 775.46767 0 91 779.00000 775.46767 0.45% - 0s 0 0 775.46767 0 91 779.00000 775.46767 0.45% - 0s 0 2 775.50204 0 91 779.00000 775.50204 0.45% - 0s * 25 10 8 778.0000000 776.13717 0.24% 11.2 0s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 48 nodes (1010 simplex iterations) in 0.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.780000000000e+02, best bound 7.780000000000e+02, gap 0.0% adding cut for [(3, 31), (3, 63), (4, 41), (4, 45), (6, 16), (6, 38), (9, 20), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 58), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 53), (29, 62), (29, 75), (31, 49), (32, 56), (33, 45), (33, 51), (36, 54), (37, 70), (37, 72), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (55, 60), (59, 73), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 129 rows, 2850 columns and 29333 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 128 rows, 2850 columns, 29312 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.763333e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 776.33333 0 60 2525.00000 776.33333 69.3% - 0s Another try with MIP start H 0 0 791.0000000 776.33333 1.85% - 0s 0 0 776.94118 0 72 791.00000 776.94118 1.78% - 0s 0 0 776.94118 0 62 791.00000 776.94118 1.78% - 0s 0 0 777.00000 0 67 791.00000 777.00000 1.77% - 0s 0 0 777.05405 0 80 791.00000 777.05405 1.76% - 0s 0 0 777.15280 0 82 791.00000 777.15280 1.75% - 0s 0 0 777.18140 0 88 791.00000 777.18140 1.75% - 0s 0 0 777.19905 0 83 791.00000 777.19905 1.74% - 0s 0 0 777.23577 0 80 791.00000 777.23577 1.74% - 0s 0 0 777.24345 0 83 791.00000 777.24345 1.74% - 0s 0 0 777.24803 0 84 791.00000 777.24803 1.74% - 0s 0 0 777.25579 0 86 791.00000 777.25579 1.74% - 0s H 0 0 780.0000000 777.25579 0.35% - 0s H 0 0 779.0000000 777.25579 0.22% - 0s 0 1 777.36391 0 83 779.00000 777.36391 0.21% - 0s * 5 1 5 778.0000000 777.90909 0.01% 9.2 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 17 Explored 6 nodes (660 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.780000000000e+02, best bound 7.780000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (9, 36), (9, 53), (11, 32), (11, 59), (12, 66), (12, 67), (15, 36), (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, 64), (34, 74), (39, 59), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (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 131 rows, 2850 columns and 29973 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 130 rows, 2850 columns, 29952 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.763333e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 776.33333 0 60 2525.00000 776.33333 69.3% - 0s Another try with MIP start H 0 0 780.0000000 776.33333 0.47% - 0s 0 0 776.94118 0 73 780.00000 776.94118 0.39% - 0s 0 0 776.94118 0 57 780.00000 776.94118 0.39% - 0s 0 0 776.94118 0 70 780.00000 776.94118 0.39% - 0s 0 0 777.06667 0 69 780.00000 777.06667 0.38% - 0s 0 0 777.06786 0 76 780.00000 777.06786 0.38% - 0s 0 0 777.21014 0 68 780.00000 777.21014 0.36% - 0s 0 0 777.21333 0 74 780.00000 777.21333 0.36% - 0s 0 0 777.21905 0 77 780.00000 777.21905 0.36% - 0s 0 0 777.22059 0 76 780.00000 777.22059 0.36% - 0s 0 0 777.23178 0 81 780.00000 777.23178 0.35% - 0s 0 0 777.23178 0 82 780.00000 777.23178 0.35% - 0s 0 0 777.23178 0 81 780.00000 777.23178 0.35% - 0s H 0 0 779.0000000 777.23178 0.23% - 0s 0 1 777.45455 0 69 779.00000 777.45455 0.20% - 0s Cutting planes: Gomory: 2 Clique: 1 Zero half: 15 Explored 3 nodes (646 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.790000000000e+02, best bound 7.790000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (3, 63), (6, 30), (6, 38), (9, 20), (9, 36), (11, 32), (11, 59), (12, 54), (12, 67), (14, 55), (14, 58), (15, 36), (15, 60), (16, 30), (16, 58), (17, 50), (19, 25), (19, 51), (20, 54), (21, 38), (21, 71), (22, 49), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (34, 64), (34, 74), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (55, 60), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(33, 45), (4, 41), (4, 45), (40, 73), (10, 33), (10, 40), (13, 41), (13, 73)] Optimize a model with 133 rows, 2850 columns and 31327 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 132 rows, 2850 columns, 31306 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.775769e+02, 213 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 777.57692 0 65 2525.00000 777.57692 69.2% - 0s Another try with MIP start H 0 0 786.0000000 777.57692 1.07% - 0s 0 0 778.16522 0 70 786.00000 778.16522 1.00% - 0s 0 0 778.16522 0 66 786.00000 778.16522 1.00% - 0s 0 0 778.18182 0 73 786.00000 778.18182 0.99% - 0s 0 0 778.28374 0 78 786.00000 778.28374 0.98% - 0s 0 0 778.29728 0 82 786.00000 778.29728 0.98% - 0s 0 0 778.33731 0 84 786.00000 778.33731 0.97% - 0s 0 0 778.33939 0 86 786.00000 778.33939 0.97% - 0s 0 0 778.37656 0 86 786.00000 778.37656 0.97% - 0s 0 0 778.39890 0 84 786.00000 778.39890 0.97% - 0s 0 0 778.39890 0 86 786.00000 778.39890 0.97% - 0s 0 0 778.39890 0 84 786.00000 778.39890 0.97% - 0s H 0 0 782.0000000 778.39890 0.46% - 0s 0 2 778.41072 0 84 782.00000 778.41072 0.46% - 0s * 16 11 13 781.0000000 779.00000 0.26% 12.8 0s * 42 2 6 780.0000000 779.66667 0.04% 9.9 0s Cutting planes: Gomory: 3 MIR: 2 Zero half: 9 Explored 43 nodes (989 simplex iterations) in 0.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.800000000000e+02, best bound 7.800000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (4, 17), (4, 45), (19, 25), (19, 56), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (33, 45), (33, 51), (34, 64), (34, 74), (42, 43), (42, 44), (43, 65), (50, 57)] adding cut for [(6, 30), (6, 49), (9, 36), (9, 53), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (28, 58), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (8, 54), (10, 32), (10, 40), (11, 32), (11, 39), (12, 67), (12, 54), (13, 41), (13, 59), (40, 73), (59, 73)] Optimize a model with 136 rows, 2850 columns and 32000 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 135 rows, 2850 columns, 31979 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 224 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 68 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 788.0000000 778.17722 1.25% - 0s H 0 0 783.0000000 778.17722 0.62% - 0s 0 0 778.57895 0 58 783.00000 778.57895 0.56% - 0s 0 0 778.57895 0 68 783.00000 778.57895 0.56% - 0s 0 0 778.73686 0 72 783.00000 778.73686 0.54% - 0s 0 0 778.87299 0 77 783.00000 778.87299 0.53% - 0s 0 0 779.07723 0 79 783.00000 779.07723 0.50% - 0s 0 0 779.16058 0 77 783.00000 779.16058 0.49% - 0s 0 0 779.16720 0 87 783.00000 779.16720 0.49% - 0s 0 0 779.16720 0 86 783.00000 779.16720 0.49% - 0s 0 2 779.17543 0 82 783.00000 779.17543 0.49% - 0s * 22 6 19 781.0000000 779.42087 0.20% 8.2 0s * 29 1 4 780.0000000 779.66667 0.04% 8.9 0s Cutting planes: Gomory: 5 MIR: 1 Zero half: 10 Explored 30 nodes (897 simplex iterations) in 0.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.800000000000e+02, best bound 7.800000000000e+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), (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), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (34, 64), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(28, 58), (9, 36), (9, 53), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (16, 30), (20, 55), (20, 60)] adding cut for [(33, 45), (4, 45), (4, 17), (40, 73), (10, 33), (10, 40), (13, 41), (13, 59), (59, 73)] Optimize a model with 140 rows, 2850 columns and 32540 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 139 rows, 2850 columns, 32519 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 68 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 787.0000000 778.17722 1.12% - 0s 0 0 778.57895 0 71 787.00000 778.57895 1.07% - 0s 0 0 778.57895 0 68 787.00000 778.57895 1.07% - 0s 0 0 778.75339 0 74 787.00000 778.75339 1.05% - 0s 0 0 779.00000 0 63 787.00000 779.00000 1.02% - 0s 0 0 779.00000 0 66 787.00000 779.00000 1.02% - 0s 0 0 779.01446 0 73 787.00000 779.01446 1.01% - 0s H 0 0 786.0000000 779.01446 0.89% - 0s 0 0 779.08744 0 80 786.00000 779.08744 0.88% - 0s 0 2 779.43798 0 79 786.00000 779.43798 0.83% - 0s H 1 2 784.0000000 779.43798 0.58% 4.0 0s * 151 31 29 782.0000000 780.02914 0.25% 13.1 0s * 165 3 22 781.0000000 780.75000 0.03% 12.4 0s Cutting planes: Gomory: 8 MIR: 2 Zero half: 9 Explored 166 nodes (2670 simplex iterations) in 0.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.810000000000e+02, best bound 7.810000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 17), (4, 45), (9, 47), (9, 53), (14, 28), (14, 58), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (28, 53), (33, 45), (33, 51), (34, 64), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (8, 54), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (40, 73), (26, 56), (59, 73)] adding cut for [(3, 63), (6, 49), (6, 30), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63)] adding cut for [(55, 60), (20, 36), (20, 55), (15, 36), (15, 60)] Optimize a model with 144 rows, 2850 columns and 33238 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 143 rows, 2850 columns, 33217 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 70 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 787.0000000 778.17722 1.12% - 0s 0 0 778.57895 0 56 787.00000 778.57895 1.07% - 0s 0 0 778.57895 0 68 787.00000 778.57895 1.07% - 0s 0 0 778.75339 0 74 787.00000 778.75339 1.05% - 0s H 0 0 786.0000000 778.75339 0.92% - 0s 0 0 779.00000 0 62 786.00000 779.00000 0.89% - 0s 0 0 779.00000 0 78 786.00000 779.00000 0.89% - 0s 0 0 779.04113 0 74 786.00000 779.04113 0.89% - 0s 0 0 779.07913 0 79 786.00000 779.07913 0.88% - 0s 0 2 779.45226 0 77 786.00000 779.45226 0.83% - 0s H 1 2 784.0000000 779.45226 0.58% 2.0 0s * 54 17 31 782.0000000 779.58623 0.31% 18.6 0s * 151 0 17 781.0000000 781.00000 0.0% 13.1 0s Cutting planes: Gomory: 12 MIR: 3 Zero half: 7 Explored 152 nodes (2604 simplex iterations) in 0.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.810000000000e+02, best bound 7.810000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (8, 36), (12, 54), (12, 67), (14, 53), (14, 55), (15, 36), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (28, 53), (28, 58), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (60, 67), (61, 71), (61, 72), (62, 70)] adding cut for [(19, 56), (19, 51), (33, 45), (33, 51), (4, 45), (4, 25), (17, 64), (10, 40), (10, 26), (13, 73), (50, 57), (40, 73), (24, 64), (24, 57), (25, 50), (26, 56)] adding cut for [(3, 63), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (30, 49)] adding cut for [(32, 66), (11, 32), (11, 59), (39, 59), (39, 66)] Optimize a model with 148 rows, 2850 columns and 33885 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 147 rows, 2850 columns, 33864 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 70 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 787.0000000 778.17722 1.12% - 0s 0 0 778.57895 0 56 787.00000 778.57895 1.07% - 0s 0 0 778.57895 0 68 787.00000 778.57895 1.07% - 0s 0 0 778.73686 0 72 787.00000 778.73686 1.05% - 0s 0 0 778.87299 0 77 787.00000 778.87299 1.03% - 0s 0 0 779.01720 0 83 787.00000 779.01720 1.01% - 0s 0 0 779.04489 0 88 787.00000 779.04489 1.01% - 0s 0 0 779.15176 0 90 787.00000 779.15176 1.00% - 0s 0 0 779.15176 0 93 787.00000 779.15176 1.00% - 0s 0 0 779.15176 0 89 787.00000 779.15176 1.00% - 0s H 0 0 785.0000000 779.15176 0.74% - 0s H 0 0 783.0000000 779.15176 0.49% - 0s 0 2 779.24492 0 89 783.00000 779.24492 0.48% - 0s * 75 12 8 781.0000000 779.77778 0.16% 10.3 0s Cutting planes: Gomory: 4 MIR: 5 Zero half: 7 Explored 86 nodes (1393 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.810000000000e+02, best bound 7.810000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (9, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 41), (13, 59), (15, 36), (15, 60), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (60, 67)] adding cut for [(3, 63), (8, 54), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(34, 74), (43, 65), (43, 44), (2, 74), (2, 44), (17, 64), (24, 64), (24, 57), (42, 65), (42, 57)] Optimize a model with 151 rows, 2850 columns and 34518 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 150 rows, 2850 columns, 34497 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 792.0000000 778.17722 1.75% - 0s 0 0 778.57895 0 56 792.00000 778.57895 1.69% - 0s 0 0 778.57895 0 71 792.00000 778.57895 1.69% - 0s 0 0 778.73686 0 72 792.00000 778.73686 1.67% - 0s 0 0 778.78098 0 77 792.00000 778.78098 1.67% - 0s 0 0 779.00000 0 49 792.00000 779.00000 1.64% - 0s 0 0 779.03052 0 79 792.00000 779.03052 1.64% - 0s 0 0 779.03619 0 86 792.00000 779.03619 1.64% - 0s 0 0 779.07835 0 80 792.00000 779.07835 1.63% - 0s 0 0 779.08026 0 85 792.00000 779.08026 1.63% - 0s 0 0 779.08526 0 91 792.00000 779.08526 1.63% - 0s H 0 0 786.0000000 779.08526 0.88% - 0s H 0 0 785.0000000 779.08526 0.75% - 0s 0 2 779.08670 0 91 785.00000 779.08670 0.75% - 0s H 27 21 783.0000000 779.59062 0.44% 7.9 0s * 49 23 16 782.0000000 779.64650 0.30% 9.4 0s Cutting planes: Gomory: 3 MIR: 3 Zero half: 12 Explored 152 nodes (1980 simplex iterations) in 0.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(8, 36), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (34, 74), (37, 48), (37, 70), (55, 60), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (9, 20), (9, 53), (11, 32), (11, 39), (12, 67), (12, 54), (17, 50), (20, 54), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 64), (2, 44), (42, 65), (42, 57), (43, 65), (43, 44), (24, 64), (24, 57)] Optimize a model with 154 rows, 2850 columns and 34982 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 153 rows, 2850 columns, 34961 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 792.0000000 778.17722 1.75% - 0s 0 0 778.57895 0 56 792.00000 778.57895 1.69% - 0s 0 0 778.57895 0 71 792.00000 778.57895 1.69% - 0s 0 0 778.75339 0 76 792.00000 778.75339 1.67% - 0s 0 0 778.86188 0 67 792.00000 778.86188 1.66% - 0s 0 0 779.05206 0 76 792.00000 779.05206 1.63% - 0s 0 0 779.06296 0 83 792.00000 779.06296 1.63% - 0s 0 0 779.09533 0 81 792.00000 779.09533 1.63% - 0s 0 0 779.09533 0 82 792.00000 779.09533 1.63% - 0s 0 0 779.10932 0 82 792.00000 779.10932 1.63% - 0s 0 0 779.10932 0 84 792.00000 779.10932 1.63% - 0s 0 0 779.10932 0 84 792.00000 779.10932 1.63% - 0s 0 0 779.10932 0 83 792.00000 779.10932 1.63% - 0s H 0 0 790.0000000 779.10932 1.38% - 0s H 0 0 784.0000000 779.10932 0.62% - 0s 0 2 779.20080 0 83 784.00000 779.20080 0.61% - 0s * 33 22 30 783.0000000 779.45955 0.45% 7.5 0s H 116 33 782.0000000 779.97959 0.26% 8.2 0s Cutting planes: Gomory: 3 MIR: 6 Zero half: 9 Explored 234 nodes (2548 simplex iterations) in 0.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (9, 20), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (13, 59), (19, 25), (19, 51), (20, 54), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (66, 67)] adding cut for [(2, 74), (2, 63), (43, 65), (43, 44), (34, 74), (17, 64), (42, 44), (42, 57), (22, 75), (22, 62), (23, 65), (23, 62), (24, 64), (24, 57), (29, 75), (29, 63)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (28, 58), (48, 49), (21, 71), (21, 38), (70, 72), (61, 71), (61, 72), (30, 46)] Optimize a model with 157 rows, 2850 columns and 35499 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 156 rows, 2850 columns, 35478 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 225 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 792.0000000 778.17722 1.75% - 0s 0 0 778.57895 0 56 792.00000 778.57895 1.69% - 0s 0 0 778.57895 0 71 792.00000 778.57895 1.69% - 0s 0 0 778.73686 0 72 792.00000 778.73686 1.67% - 0s 0 0 778.78098 0 77 792.00000 778.78098 1.67% - 0s 0 0 779.00000 0 47 792.00000 779.00000 1.64% - 0s 0 0 779.03052 0 79 792.00000 779.03052 1.64% - 0s 0 0 779.03619 0 86 792.00000 779.03619 1.64% - 0s 0 0 779.07835 0 81 792.00000 779.07835 1.63% - 0s 0 0 779.08026 0 85 792.00000 779.08026 1.63% - 0s 0 0 779.11934 0 86 792.00000 779.11934 1.63% - 0s 0 0 779.12786 0 90 792.00000 779.12786 1.63% - 0s 0 0 779.15759 0 85 792.00000 779.15759 1.62% - 0s 0 0 779.16068 0 91 792.00000 779.16068 1.62% - 0s 0 0 779.16068 0 90 792.00000 779.16068 1.62% - 0s H 0 0 790.0000000 779.16068 1.37% - 0s H 0 0 782.0000000 779.16068 0.36% - 0s 0 2 779.18161 0 90 782.00000 779.18161 0.36% - 0s Cutting planes: Gomory: 4 MIR: 2 Zero half: 13 Explored 116 nodes (1621 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (6, 16), (6, 38), (14, 28), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (8, 36), (11, 32), (11, 39), (12, 67), (12, 54), (15, 36), (15, 60), (17, 50), (20, 54), (20, 55), (55, 60), (25, 50), (26, 51), (26, 56)] Optimize a model with 159 rows, 2850 columns and 36095 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 158 rows, 2850 columns, 36074 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 796.0000000 778.17722 2.24% - 0s 0 0 778.59091 0 70 796.00000 778.59091 2.19% - 0s 0 0 778.59091 0 71 796.00000 778.59091 2.19% - 0s 0 0 778.77637 0 74 796.00000 778.77637 2.16% - 0s 0 0 778.90161 0 78 796.00000 778.90161 2.15% - 0s 0 0 779.04649 0 80 796.00000 779.04649 2.13% - 0s 0 0 779.06518 0 83 796.00000 779.06518 2.13% - 0s 0 0 779.06848 0 88 796.00000 779.06848 2.13% - 0s 0 0 779.06848 0 87 796.00000 779.06848 2.13% - 0s H 0 0 789.0000000 779.06848 1.26% - 0s H 0 0 788.0000000 779.06848 1.13% - 0s 0 2 779.07688 0 86 788.00000 779.07688 1.13% - 0s * 23 13 20 782.0000000 779.70413 0.29% 12.9 0s Cutting planes: Gomory: 5 MIR: 4 Zero half: 17 Explored 133 nodes (1943 simplex iterations) in 0.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (3, 63), (8, 36), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (28, 58), (29, 62), (29, 75), (34, 64), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (55, 60), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (9, 20), (9, 53), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (20, 54), (26, 56), (59, 73)] Optimize a model with 161 rows, 2850 columns and 36776 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 160 rows, 2850 columns, 36755 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 796.0000000 778.17722 2.24% - 0s 0 0 778.59091 0 72 796.00000 778.59091 2.19% - 0s 0 0 778.59091 0 71 796.00000 778.59091 2.19% - 0s 0 0 778.75231 0 76 796.00000 778.75231 2.17% - 0s 0 0 778.90076 0 80 796.00000 778.90076 2.15% - 0s 0 0 779.04562 0 88 796.00000 779.04562 2.13% - 0s 0 0 779.06418 0 90 796.00000 779.06418 2.13% - 0s 0 0 779.07690 0 93 796.00000 779.07690 2.13% - 0s 0 0 779.07747 0 94 796.00000 779.07747 2.13% - 0s H 0 0 790.0000000 779.07747 1.38% - 0s H 0 0 783.0000000 779.07747 0.50% - 0s 0 2 779.08956 0 94 783.00000 779.08956 0.50% - 0s * 23 8 17 782.0000000 779.24733 0.35% 12.4 0s Cutting planes: Gomory: 6 MIR: 4 Zero half: 11 Explored 109 nodes (1814 simplex iterations) in 0.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (9, 36), (9, 47), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (28, 58), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 64), (2, 74), (66, 67), (32, 56), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (34, 74), (50, 57), (19, 51), (19, 25), (25, 50), (24, 64), (24, 57), (26, 51), (26, 56), (39, 66)] adding cut for [(22, 75), (22, 62), (23, 62), (23, 63), (29, 75), (29, 63)] adding cut for [(42, 65), (42, 44), (43, 65), (43, 44)] Optimize a model with 165 rows, 2850 columns and 37218 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 164 rows, 2850 columns, 37197 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 796.0000000 778.17722 2.24% - 0s 0 0 778.59091 0 72 796.00000 778.59091 2.19% - 0s 0 0 778.59091 0 71 796.00000 778.59091 2.19% - 0s 0 0 778.77470 0 75 796.00000 778.77470 2.16% - 0s 0 0 778.90076 0 80 796.00000 778.90076 2.15% - 0s 0 0 779.03014 0 87 796.00000 779.03014 2.13% - 0s 0 0 779.08559 0 88 796.00000 779.08559 2.12% - 0s 0 0 779.08872 0 89 796.00000 779.08872 2.12% - 0s 0 0 779.08872 0 85 796.00000 779.08872 2.12% - 0s H 0 0 790.0000000 779.08872 1.38% - 0s H 0 0 786.0000000 779.08872 0.88% - 0s 0 2 779.09410 0 85 786.00000 779.09410 0.88% - 0s * 26 23 22 785.0000000 779.59729 0.69% 15.8 0s H 28 21 784.0000000 779.59729 0.56% 15.1 0s H 192 67 783.0000000 780.12500 0.37% 11.1 0s * 216 35 12 782.0000000 780.17273 0.23% 11.3 0s Cutting planes: Gomory: 6 MIR: 3 Zero half: 9 Explored 279 nodes (3582 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 36), (9, 47), (11, 32), (11, 39), (12, 60), (12, 67), (15, 36), (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 [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 55), (14, 28), (8, 54), (48, 49), (20, 54), (20, 55), (21, 71), (21, 38), (28, 58), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 167 rows, 2850 columns and 37917 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 166 rows, 2850 columns, 37896 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.781772e+02, 205 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.17722 0 71 2525.00000 778.17722 69.2% - 0s Another try with MIP start H 0 0 796.0000000 778.17722 2.24% - 0s 0 0 778.59091 0 72 796.00000 778.59091 2.19% - 0s 0 0 778.59091 0 71 796.00000 778.59091 2.19% - 0s 0 0 778.75231 0 76 796.00000 778.75231 2.17% - 0s 0 0 778.90076 0 81 796.00000 778.90076 2.15% - 0s 0 0 779.04577 0 87 796.00000 779.04577 2.13% - 0s 0 0 779.06401 0 88 796.00000 779.06401 2.13% - 0s 0 0 779.06627 0 92 796.00000 779.06627 2.13% - 0s 0 0 779.06627 0 92 796.00000 779.06627 2.13% - 0s H 0 0 788.0000000 779.06627 1.13% - 0s H 0 0 787.0000000 779.06627 1.01% - 0s 0 2 779.07367 0 92 787.00000 779.07367 1.01% - 0s H 27 23 785.0000000 779.64524 0.68% 15.3 0s * 63 20 24 782.0000000 779.77994 0.28% 11.7 0s Cutting planes: Gomory: 6 MIR: 3 Zero half: 24 Explored 145 nodes (2116 simplex iterations) in 0.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (9, 36), (9, 47), (14, 53), (14, 55), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 29), (23, 62), (28, 53), (28, 58), (29, 75), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(4, 25), (4, 45), (8, 54), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (17, 50), (19, 51), (19, 56), (25, 50), (26, 56), (32, 66), (33, 45), (33, 51), (39, 59), (40, 73), (59, 73), (66, 67)] adding cut for [(2, 74), (2, 44), (3, 63), (43, 65), (43, 44), (34, 64), (24, 64), (24, 57), (42, 65), (42, 57), (63, 74)] Optimize a model with 170 rows, 2850 columns and 38584 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 169 rows, 2850 columns, 38563 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.782833e+02, 219 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.28327 0 76 2525.00000 778.28327 69.2% - 0s Another try with MIP start H 0 0 808.0000000 778.28327 3.68% - 0s 0 0 778.59091 0 72 808.00000 778.59091 3.64% - 0s 0 0 778.59091 0 76 808.00000 778.59091 3.64% - 0s 0 0 778.59091 0 72 808.00000 778.59091 3.64% - 0s 0 0 779.02288 0 81 808.00000 779.02288 3.59% - 0s 0 0 779.02376 0 84 808.00000 779.02376 3.59% - 0s 0 0 779.03350 0 86 808.00000 779.03350 3.58% - 0s 0 0 779.04893 0 88 808.00000 779.04893 3.58% - 0s 0 0 779.07176 0 88 808.00000 779.07176 3.58% - 0s 0 0 779.07426 0 90 808.00000 779.07426 3.58% - 0s 0 0 779.08906 0 88 808.00000 779.08906 3.58% - 0s 0 0 779.09446 0 92 808.00000 779.09446 3.58% - 0s 0 0 779.11940 0 88 808.00000 779.11940 3.57% - 0s 0 0 779.12212 0 93 808.00000 779.12212 3.57% - 0s 0 0 779.12212 0 92 808.00000 779.12212 3.57% - 0s H 0 0 789.0000000 779.12212 1.25% - 0s H 0 0 786.0000000 779.12212 0.88% - 1s 0 2 779.12675 0 92 786.00000 779.12675 0.87% - 1s * 35 22 30 783.0000000 779.53191 0.44% 11.0 1s * 292 33 12 782.0000000 780.61538 0.18% 10.1 1s Cutting planes: MIR: 1 Zero half: 20 Explored 332 nodes (3743 simplex iterations) in 1.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 36), (11, 32), (11, 39), (12, 54), (12, 67), (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), (36, 54), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (63, 74), (66, 67)] adding cut for [(6, 30), (6, 49), (9, 20), (9, 53), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (28, 58), (35, 53), (37, 48), (37, 70), (48, 49), (55, 60), (61, 71), (61, 72), (70, 72)] Optimize a model with 172 rows, 2850 columns and 39280 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 171 rows, 2850 columns, 39259 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.782833e+02, 204 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.28327 0 75 2525.00000 778.28327 69.2% - 0s Another try with MIP start H 0 0 799.0000000 778.28327 2.59% - 0s 0 0 778.59091 0 70 799.00000 778.59091 2.55% - 0s 0 0 778.59091 0 76 799.00000 778.59091 2.55% - 0s 0 0 778.62792 0 75 799.00000 778.62792 2.55% - 0s 0 0 778.83854 0 78 799.00000 778.83854 2.52% - 0s 0 0 778.96986 0 83 799.00000 778.96986 2.51% - 0s 0 0 779.00719 0 85 799.00000 779.00719 2.50% - 0s 0 0 779.02162 0 88 799.00000 779.02162 2.50% - 0s 0 0 779.05712 0 87 799.00000 779.05712 2.50% - 0s 0 0 779.06065 0 86 799.00000 779.06065 2.50% - 0s 0 0 779.06153 0 89 799.00000 779.06153 2.50% - 0s 0 0 779.06153 0 86 799.00000 779.06153 2.50% - 0s H 0 0 790.0000000 779.06153 1.38% - 0s H 0 0 789.0000000 779.06153 1.26% - 0s H 0 0 786.0000000 779.06153 0.88% - 0s 0 2 779.07176 0 85 786.00000 779.07176 0.88% - 0s H 27 24 785.0000000 779.55053 0.69% 14.2 0s * 46 30 37 784.0000000 779.55053 0.57% 10.1 0s H 81 45 783.0000000 779.75000 0.42% 11.2 0s * 247 23 15 782.0000000 780.36503 0.21% 10.4 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 12 Explored 282 nodes (3389 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (8, 54), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (17, 64), (19, 51), (19, 56), (24, 57), (24, 64), (25, 50), (26, 56), (32, 40), (33, 45), (33, 51), (39, 66), (50, 57), (66, 67)] adding cut for [(48, 49), (6, 58), (6, 30), (29, 75), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (62, 70), (61, 71), (61, 72), (30, 49), (37, 72), (37, 70)] adding cut for [(34, 74), (3, 31), (3, 63), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (23, 65), (23, 63)] adding cut for [(28, 53), (9, 36), (9, 47), (14, 28), (14, 55), (15, 36), (15, 60), (20, 55), (20, 60)] Optimize a model with 176 rows, 2850 columns and 39769 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 175 rows, 2850 columns, 39748 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.783571e+02, 212 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.35714 0 77 2525.00000 778.35714 69.2% - 0s Another try with MIP start H 0 0 786.0000000 778.35714 0.97% - 0s 0 0 778.72870 0 79 786.00000 778.72870 0.93% - 0s 0 0 778.72870 0 78 786.00000 778.72870 0.93% - 0s 0 0 778.73519 0 79 786.00000 778.73519 0.92% - 0s 0 0 779.02288 0 81 786.00000 779.02288 0.89% - 0s 0 0 779.02376 0 82 786.00000 779.02376 0.89% - 0s 0 0 779.02787 0 88 786.00000 779.02787 0.89% - 0s 0 0 779.05446 0 87 786.00000 779.05446 0.88% - 0s 0 0 779.05902 0 87 786.00000 779.05902 0.88% - 0s 0 0 779.07261 0 90 786.00000 779.07261 0.88% - 0s 0 0 779.08347 0 90 786.00000 779.08347 0.88% - 0s 0 0 779.08347 0 92 786.00000 779.08347 0.88% - 0s 0 0 779.09934 0 87 786.00000 779.09934 0.88% - 0s 0 0 779.09934 0 92 786.00000 779.09934 0.88% - 0s 0 0 779.11751 0 93 786.00000 779.11751 0.88% - 0s 0 0 779.14286 0 83 786.00000 779.14286 0.87% - 0s 0 0 779.14560 0 87 786.00000 779.14560 0.87% - 0s 0 0 779.14699 0 88 786.00000 779.14699 0.87% - 0s 0 0 779.14699 0 88 786.00000 779.14699 0.87% - 0s 0 2 779.16767 0 88 786.00000 779.16767 0.87% - 0s * 23 19 20 783.0000000 779.75556 0.41% 15.5 0s * 149 17 10 782.0000000 780.39702 0.20% 12.0 0s Cutting planes: Gomory: 2 MIR: 6 Zero half: 27 Explored 180 nodes (2629 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (9, 36), (9, 47), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (66, 67), (4, 45), (4, 25), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (17, 50), (25, 50), (26, 32), (26, 56), (39, 66)] Optimize a model with 178 rows, 2850 columns and 40483 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 177 rows, 2850 columns, 40462 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.783571e+02, 233 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.35714 0 77 2525.00000 778.35714 69.2% - 0s Another try with MIP start H 0 0 794.0000000 778.35714 1.97% - 0s 0 0 778.73853 0 77 794.00000 778.73853 1.92% - 0s 0 0 778.73853 0 77 794.00000 778.73853 1.92% - 0s 0 0 778.75949 0 77 794.00000 778.75949 1.92% - 0s 0 0 779.02288 0 81 794.00000 779.02288 1.89% - 0s 0 0 779.03062 0 84 794.00000 779.03062 1.89% - 0s 0 0 779.03169 0 87 794.00000 779.03169 1.89% - 0s 0 0 779.06274 0 82 794.00000 779.06274 1.88% - 0s 0 0 779.06396 0 86 794.00000 779.06396 1.88% - 0s 0 0 779.07681 0 93 794.00000 779.07681 1.88% - 0s 0 0 779.08577 0 85 794.00000 779.08577 1.88% - 0s 0 0 779.09804 0 85 794.00000 779.09804 1.88% - 0s 0 0 779.09896 0 87 794.00000 779.09896 1.88% - 0s 0 0 779.10424 0 88 794.00000 779.10424 1.88% - 0s 0 0 779.10437 0 91 794.00000 779.10437 1.88% - 0s 0 0 779.10647 0 91 794.00000 779.10647 1.88% - 0s 0 0 779.10647 0 91 794.00000 779.10647 1.88% - 0s 0 2 779.11688 0 91 794.00000 779.11688 1.87% - 0s * 41 34 34 785.0000000 779.77778 0.67% 11.2 1s * 42 20 35 784.0000000 779.77778 0.54% 11.0 1s * 84 17 8 782.0000000 779.87081 0.27% 10.2 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 19 Explored 145 nodes (2100 simplex iterations) in 1.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.820000000000e+02, best bound 7.820000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (14, 28), (14, 58), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 53), (29, 62), (29, 75), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (8, 36), (11, 39), (11, 59), (12, 67), (12, 54), (13, 73), (13, 41), (15, 36), (15, 60), (20, 54), (20, 55), (55, 60), (59, 73)] Optimize a model with 180 rows, 2850 columns and 41344 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 179 rows, 2850 columns, 41323 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.783571e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.35714 0 77 2525.00000 778.35714 69.2% - 0s Another try with MIP start H 0 0 794.0000000 778.35714 1.97% - 0s 0 0 778.73853 0 74 794.00000 778.73853 1.92% - 0s 0 0 778.73853 0 77 794.00000 778.73853 1.92% - 0s 0 0 778.75949 0 77 794.00000 778.75949 1.92% - 0s 0 0 779.02288 0 81 794.00000 779.02288 1.89% - 0s 0 0 779.03062 0 84 794.00000 779.03062 1.89% - 0s 0 0 779.03169 0 87 794.00000 779.03169 1.89% - 0s 0 0 779.06274 0 83 794.00000 779.06274 1.88% - 0s 0 0 779.06937 0 85 794.00000 779.06937 1.88% - 0s 0 0 779.07870 0 90 794.00000 779.07870 1.88% - 0s 0 0 779.08844 0 90 794.00000 779.08844 1.88% - 0s 0 0 779.10373 0 94 794.00000 779.10373 1.88% - 0s 0 0 779.10571 0 95 794.00000 779.10571 1.88% - 0s 0 0 779.12346 0 89 794.00000 779.12346 1.87% - 0s 0 0 779.12799 0 93 794.00000 779.12799 1.87% - 0s 0 0 779.13073 0 93 794.00000 779.13073 1.87% - 0s 0 0 779.13073 0 93 794.00000 779.13073 1.87% - 0s H 0 0 787.0000000 779.13073 1.00% - 0s 0 2 779.13191 0 93 787.00000 779.13191 1.00% - 0s * 63 30 56 784.0000000 779.76087 0.54% 7.7 1s * 465 112 17 783.0000000 780.70833 0.29% 10.2 1s Cutting planes: MIR: 2 Zero half: 24 Explored 811 nodes (8334 simplex iterations) in 1.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.830000000000e+02, best bound 7.830000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 74), (6, 30), (6, 49), (8, 54), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (28, 58), (29, 63), (29, 75), (34, 64), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 56), (39, 66), (40, 73), (9, 36), (9, 53), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (26, 56), (59, 73), (60, 67)] Optimize a model with 182 rows, 2850 columns and 42075 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 181 rows, 2850 columns, 42054 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.783571e+02, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.35714 0 77 2525.00000 778.35714 69.2% - 0s Another try with MIP start H 0 0 788.0000000 778.35714 1.22% - 0s 0 0 778.78316 0 79 788.00000 778.78316 1.17% - 0s 0 0 778.78316 0 77 788.00000 778.78316 1.17% - 0s 0 0 778.83652 0 78 788.00000 778.83652 1.16% - 0s 0 0 779.01177 0 83 788.00000 779.01177 1.14% - 0s 0 0 779.06083 0 82 788.00000 779.06083 1.13% - 0s 0 0 779.09333 0 84 788.00000 779.09333 1.13% - 0s 0 0 779.12346 0 91 788.00000 779.12346 1.13% - 0s 0 0 779.14038 0 90 788.00000 779.14038 1.12% - 0s 0 0 779.16541 0 88 788.00000 779.16541 1.12% - 0s 0 0 779.19025 0 87 788.00000 779.19025 1.12% - 0s 0 0 779.19519 0 93 788.00000 779.19519 1.12% - 0s 0 0 779.19629 0 94 788.00000 779.19629 1.12% - 0s 0 0 779.19629 0 94 788.00000 779.19629 1.12% - 0s 0 2 779.21615 0 93 788.00000 779.21615 1.11% - 0s * 43 36 36 787.0000000 779.97937 0.89% 12.5 0s * 151 92 26 785.0000000 780.24299 0.61% 12.4 0s * 300 112 16 784.0000000 780.50709 0.45% 11.8 0s H 534 75 783.0000000 780.93750 0.26% 11.3 1s Cutting planes: Gomory: 2 MIR: 3 Zero half: 13 Explored 691 nodes (8045 simplex iterations) in 1.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.830000000000e+02, best bound 7.830000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (6, 30), (6, 38), (8, 36), (14, 28), (14, 58), (15, 36), (15, 60), (16, 30), (16, 58), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (28, 53), (34, 74), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (53, 55), (55, 60), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (9, 47), (9, 20), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (20, 54), (26, 56), (59, 73)] adding cut for [(19, 51), (19, 25), (33, 45), (33, 51), (4, 45), (4, 17), (17, 50), (25, 50)] Optimize a model with 185 rows, 2850 columns and 42688 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 184 rows, 2850 columns, 42667 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.783571e+02, 266 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.35714 0 77 2525.00000 778.35714 69.2% - 0s Another try with MIP start H 0 0 793.0000000 778.35714 1.85% - 0s 0 0 778.78316 0 79 793.00000 778.78316 1.79% - 0s 0 0 778.78316 0 77 793.00000 778.78316 1.79% - 0s 0 0 778.83652 0 78 793.00000 778.83652 1.79% - 0s 0 0 779.05193 0 79 793.00000 779.05193 1.76% - 0s 0 0 779.06088 0 83 793.00000 779.06088 1.76% - 0s 0 0 779.09333 0 81 793.00000 779.09333 1.75% - 0s 0 0 779.10298 0 87 793.00000 779.10298 1.75% - 0s 0 0 779.11916 0 93 793.00000 779.11916 1.75% - 0s 0 0 779.13935 0 88 793.00000 779.13935 1.75% - 0s 0 0 779.16169 0 87 793.00000 779.16169 1.75% - 0s 0 0 779.16620 0 87 793.00000 779.16620 1.74% - 0s 0 0 779.16789 0 92 793.00000 779.16789 1.74% - 0s 0 0 779.17049 0 93 793.00000 779.17049 1.74% - 0s 0 2 779.17620 0 93 793.00000 779.17620 1.74% - 0s H 27 22 784.0000000 779.78587 0.54% 16.3 0s * 54 27 21 783.0000000 780.18750 0.36% 12.9 0s Cutting planes: Gomory: 2 MIR: 3 Zero half: 12 Explored 368 nodes (4476 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.830000000000e+02, best bound 7.830000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (8, 36), (12, 54), (12, 67), (14, 28), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 53), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (53, 55), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 25), (4, 45), (10, 26), (10, 40), (11, 39), (11, 59), (13, 73), (17, 64), (19, 51), (19, 56), (24, 57), (24, 64), (25, 50), (26, 56), (32, 40), (32, 66), (33, 45), (33, 51), (39, 66), (50, 57), (59, 73)] Optimize a model with 187 rows, 2850 columns and 43415 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 186 rows, 2850 columns, 43394 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.784302e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.43023 0 77 2525.00000 778.43023 69.2% - 0s Another try with MIP start H 0 0 794.0000000 778.43023 1.96% - 0s 0 0 778.91562 0 72 794.00000 778.91562 1.90% - 0s 0 0 778.91562 0 77 794.00000 778.91562 1.90% - 0s 0 0 779.22943 0 87 794.00000 779.22943 1.86% - 0s 0 0 779.45116 0 86 794.00000 779.45116 1.83% - 0s 0 0 779.45546 0 91 794.00000 779.45546 1.83% - 0s 0 0 779.47343 0 94 794.00000 779.47343 1.83% - 0s 0 0 779.48031 0 93 794.00000 779.48031 1.83% - 0s 0 0 779.48132 0 96 794.00000 779.48132 1.83% - 0s 0 0 779.48132 0 96 794.00000 779.48132 1.83% - 0s 0 2 779.48545 0 95 794.00000 779.48545 1.83% - 0s * 107 39 20 784.0000000 780.10185 0.50% 10.3 1s * 808 158 26 783.0000000 781.20968 0.23% 11.3 2s Cutting planes: Gomory: 6 MIR: 3 Zero half: 3 Explored 1007 nodes (11391 simplex iterations) in 2.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.830000000000e+02, best bound 7.830000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 64), (6, 38), (6, 49), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (29, 62), (29, 75), (31, 49), (34, 74), (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), (33, 45), (4, 41), (4, 45), (19, 51), (19, 25), (39, 66), (39, 59), (40, 73), (10, 33), (10, 40), (11, 32), (11, 66), (13, 41), (17, 50), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(8, 36), (9, 20), (12, 67), (12, 54), (15, 36), (15, 60), (20, 54), (60, 67)] Optimize a model with 190 rows, 2850 columns and 43992 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 189 rows, 2850 columns, 43971 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.789231e+02, 247 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.92308 0 78 2525.00000 778.92308 69.2% - 0s Another try with MIP start H 0 0 797.0000000 778.92308 2.27% - 0s 0 0 779.09833 0 76 797.00000 779.09833 2.25% - 0s 0 0 779.09833 0 76 797.00000 779.09833 2.25% - 0s 0 0 779.23005 0 76 797.00000 779.23005 2.23% - 0s 0 0 779.36271 0 79 797.00000 779.36271 2.21% - 0s 0 0 779.56926 0 78 797.00000 779.56926 2.19% - 0s 0 0 779.75934 0 87 797.00000 779.75934 2.16% - 0s 0 0 779.80035 0 92 797.00000 779.80035 2.16% - 0s 0 0 779.83542 0 94 797.00000 779.83542 2.15% - 0s 0 0 779.84263 0 96 797.00000 779.84263 2.15% - 0s 0 0 779.84263 0 98 797.00000 779.84263 2.15% - 0s 0 0 779.86376 0 93 797.00000 779.86376 2.15% - 0s 0 0 779.86376 0 93 797.00000 779.86376 2.15% - 0s H 0 0 788.0000000 779.86376 1.03% - 0s 0 2 779.87481 0 93 788.00000 779.87481 1.03% - 1s * 44 35 33 787.0000000 780.24489 0.86% 15.2 1s * 70 41 19 785.0000000 780.36170 0.59% 15.0 1s * 113 46 14 784.0000000 780.64451 0.43% 14.5 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 14 Explored 743 nodes (8632 simplex iterations) in 1.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.840000000000e+02, best bound 7.840000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (4, 45), (10, 33), (10, 40), (17, 64), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (32, 40), (32, 56), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(6, 16), (6, 38), (9, 36), (9, 47), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (28, 58), (31, 49), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 67), (12, 54), (13, 73), (13, 41), (59, 73)] Optimize a model with 193 rows, 2850 columns and 44656 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 192 rows, 2850 columns, 44635 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.789231e+02, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 778.92308 0 76 2525.00000 778.92308 69.2% - 0s Another try with MIP start H 0 0 788.0000000 778.92308 1.15% - 0s 0 0 779.10544 0 80 788.00000 779.10544 1.13% - 0s 0 0 779.10544 0 78 788.00000 779.10544 1.13% - 0s 0 0 779.27647 0 79 788.00000 779.27647 1.11% - 0s 0 0 779.66417 0 86 788.00000 779.66417 1.06% - 0s 0 0 779.76232 0 87 788.00000 779.76232 1.05% - 0s 0 0 779.81688 0 91 788.00000 779.81688 1.04% - 0s 0 0 779.81883 0 94 788.00000 779.81883 1.04% - 0s 0 0 779.84165 0 92 788.00000 779.84165 1.04% - 0s 0 0 779.84207 0 98 788.00000 779.84207 1.04% - 0s 0 0 779.84466 0 95 788.00000 779.84466 1.03% - 0s 0 0 779.85161 0 98 788.00000 779.85161 1.03% - 0s 0 0 779.88035 0 91 788.00000 779.88035 1.03% - 0s 0 0 779.88811 0 97 788.00000 779.88811 1.03% - 0s 0 0 779.89644 0 97 788.00000 779.89644 1.03% - 0s 0 0 779.89731 0 97 788.00000 779.89731 1.03% - 0s 0 0 779.89731 0 97 788.00000 779.89731 1.03% - 0s 0 2 779.91905 0 97 788.00000 779.91905 1.03% - 0s * 48 34 39 787.0000000 780.26427 0.86% 13.9 0s * 72 26 19 784.0000000 780.67826 0.42% 12.9 0s Cutting planes: Gomory: 5 MIR: 4 Zero half: 13 Explored 529 nodes (6846 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.840000000000e+02, best bound 7.840000000000e+02, gap 0.0% adding cut for [(3, 63), (4, 45), (33, 51), (33, 45), (42, 44), (42, 57), (43, 65), (43, 44), (19, 51), (19, 25), (25, 50), (22, 75), (22, 62), (23, 65), (23, 62), (24, 50), (24, 57), (29, 75), (29, 63)] adding cut for [(32, 56), (66, 67), (39, 66), (8, 36), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (15, 36), (15, 60), (40, 73), (20, 54), (20, 55), (55, 60), (26, 56), (59, 73)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (14, 58), (14, 28), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (30, 46), (30, 49), (37, 48), (37, 70)] Optimize a model with 196 rows, 2850 columns and 45137 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 195 rows, 2850 columns, 45116 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 84 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 788.0000000 779.18428 1.12% - 0s 0 0 779.30815 0 80 788.00000 779.30815 1.10% - 0s 0 0 779.30815 0 84 788.00000 779.30815 1.10% - 0s 0 0 779.66684 0 84 788.00000 779.66684 1.06% - 0s 0 0 779.94404 0 89 788.00000 779.94404 1.02% - 0s 0 0 779.99242 0 94 788.00000 779.99242 1.02% - 0s 0 0 780.01259 0 94 788.00000 780.01259 1.01% - 0s 0 0 780.02942 0 93 788.00000 780.02942 1.01% - 0s 0 0 780.03249 0 90 788.00000 780.03249 1.01% - 0s 0 0 780.03725 0 95 788.00000 780.03725 1.01% - 0s 0 0 780.04917 0 94 788.00000 780.04917 1.01% - 0s 0 0 780.05097 0 93 788.00000 780.05097 1.01% - 0s 0 0 780.05097 0 93 788.00000 780.05097 1.01% - 0s 0 2 780.10560 0 93 788.00000 780.10560 1.00% - 0s H 27 19 785.0000000 780.92277 0.52% 17.4 0s * 102 35 11 784.0000000 781.44430 0.33% 16.0 0s Cutting planes: Gomory: 5 MIR: 5 Zero half: 9 Explored 214 nodes (3298 simplex iterations) in 0.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.840000000000e+02, best bound 7.840000000000e+02, gap 0.0% adding cut for [(8, 54), (9, 20), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 36), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (32, 73), (37, 70), (37, 72), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (55, 60), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(33, 41), (33, 45), (2, 64), (2, 34), (4, 45), (4, 17), (6, 49), (6, 30), (34, 74), (48, 49), (17, 64), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (63, 74)] Optimize a model with 198 rows, 2850 columns and 46193 nonzeros Presolve time: 0.05s Presolved: 198 rows, 2850 columns, 46193 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 85 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 798.0000000 779.18428 2.36% - 0s 0 0 779.34028 0 83 798.00000 779.34028 2.34% - 0s 0 0 779.34028 0 85 798.00000 779.34028 2.34% - 0s 0 0 779.68078 0 85 798.00000 779.68078 2.30% - 0s 0 0 779.90493 0 88 798.00000 779.90493 2.27% - 0s 0 0 779.95937 0 92 798.00000 779.95937 2.26% - 0s 0 0 779.98423 0 94 798.00000 779.98423 2.26% - 0s 0 0 780.01569 0 97 798.00000 780.01569 2.25% - 0s 0 0 780.01569 0 98 798.00000 780.01569 2.25% - 0s 0 0 780.04060 0 94 798.00000 780.04060 2.25% - 0s 0 0 780.04060 0 95 798.00000 780.04060 2.25% - 0s 0 0 780.04197 0 98 798.00000 780.04197 2.25% - 0s H 0 0 789.0000000 780.04197 1.14% - 0s 0 2 780.15100 0 98 789.00000 780.15100 1.12% - 1s * 45 29 35 787.0000000 780.88624 0.78% 14.9 1s * 104 62 26 786.0000000 781.01427 0.63% 13.5 1s * 160 54 8 785.0000000 781.15765 0.49% 13.5 1s * 520 38 15 784.0000000 782.37500 0.21% 11.9 1s Cutting planes: Gomory: 3 MIR: 3 Zero half: 11 Explored 567 nodes (7050 simplex iterations) in 1.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.840000000000e+02, best bound 7.840000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 25), (4, 45), (6, 38), (6, 49), (10, 26), (10, 40), (19, 51), (19, 56), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 62), (29, 75), (30, 46), (30, 49), (33, 45), (33, 51), (37, 48), (37, 70), (40, 41), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 66), (66, 67), (28, 53), (39, 59), (11, 32), (11, 39), (12, 67), (12, 54), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 28), (16, 58), (20, 55), (20, 60), (59, 73)] Optimize a model with 200 rows, 2850 columns and 47030 nonzeros Presolve time: 0.05s Presolved: 200 rows, 2850 columns, 47030 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 85 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 798.0000000 779.18428 2.36% - 0s 0 0 779.34028 0 83 798.00000 779.34028 2.34% - 0s 0 0 779.34028 0 85 798.00000 779.34028 2.34% - 0s 0 0 779.68078 0 84 798.00000 779.68078 2.30% - 0s 0 0 779.90493 0 88 798.00000 779.90493 2.27% - 0s 0 0 779.95937 0 92 798.00000 779.95937 2.26% - 0s 0 0 779.98423 0 94 798.00000 779.98423 2.26% - 0s 0 0 780.02014 0 94 798.00000 780.02014 2.25% - 0s 0 0 780.02247 0 95 798.00000 780.02247 2.25% - 0s 0 0 780.04081 0 97 798.00000 780.04081 2.25% - 0s 0 0 780.04597 0 97 798.00000 780.04597 2.25% - 0s 0 0 780.06186 0 98 798.00000 780.06186 2.25% - 0s 0 0 780.07020 0 98 798.00000 780.07020 2.25% - 0s 0 0 780.09375 0 98 798.00000 780.09375 2.24% - 0s 0 0 780.10002 0 98 798.00000 780.10002 2.24% - 0s 0 0 780.10002 0 98 798.00000 780.10002 2.24% - 0s H 0 0 793.0000000 780.10002 1.63% - 0s H 0 0 791.0000000 780.10002 1.38% - 1s H 0 0 790.0000000 780.10002 1.25% - 1s 0 2 780.11543 0 98 790.00000 780.11543 1.25% - 1s * 67 45 58 789.0000000 780.73732 1.05% 9.4 1s H 113 58 787.0000000 780.98254 0.76% 11.2 1s * 133 61 24 786.0000000 780.98254 0.64% 11.1 1s * 263 69 9 785.0000000 781.63110 0.43% 12.9 1s * 272 38 10 784.0000000 781.71429 0.29% 12.8 1s Cutting planes: Gomory: 3 MIR: 4 Zero half: 11 Mod-K: 1 Explored 366 nodes (4943 simplex iterations) in 1.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.840000000000e+02, best bound 7.840000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (9, 20), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (20, 36), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (29, 62), (29, 75), (30, 46), (31, 49), (31, 75), (37, 48), (37, 70), (55, 60), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 23), (2, 64), (8, 54), (11, 32), (11, 39), (12, 54), (12, 67), (17, 64), (19, 25), (19, 51), (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)] Optimize a model with 202 rows, 2850 columns and 47657 nonzeros Presolve time: 0.04s Presolved: 202 rows, 2850 columns, 47657 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 85 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.18428 1.24% - 0s 0 0 779.34028 0 83 789.00000 779.34028 1.22% - 0s 0 0 779.34028 0 85 789.00000 779.34028 1.22% - 0s 0 0 779.68078 0 84 789.00000 779.68078 1.18% - 0s 0 0 779.90277 0 91 789.00000 779.90277 1.15% - 0s 0 0 779.95937 0 92 789.00000 779.95937 1.15% - 0s 0 0 779.98423 0 93 789.00000 779.98423 1.14% - 0s H 0 0 787.0000000 779.98423 0.89% - 0s 0 0 780.01329 0 93 787.00000 780.01329 0.89% - 0s 0 2 780.46275 0 93 787.00000 780.46275 0.83% - 0s * 87 40 34 786.0000000 780.96829 0.64% 18.6 1s * 174 60 26 785.0000000 781.40000 0.46% 15.6 1s Cutting planes: Gomory: 14 MIR: 5 Zero half: 5 Explored 647 nodes (8316 simplex iterations) in 1.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (8, 54), (12, 54), (12, 67), (14, 55), (14, 58), (15, 36), (15, 60), (16, 58), (19, 25), (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, 51), (26, 56), (29, 62), (29, 75), (33, 45), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (39, 66), (39, 59), (10, 40), (10, 41), (11, 32), (11, 66), (13, 73), (59, 73)] Optimize a model with 204 rows, 2850 columns and 48522 nonzeros Presolve time: 0.04s Presolved: 204 rows, 2850 columns, 48522 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 272 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 85 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.18428 1.24% - 0s 0 0 779.34028 0 82 789.00000 779.34028 1.22% - 0s 0 0 779.34028 0 85 789.00000 779.34028 1.22% - 0s 0 0 779.66943 0 85 789.00000 779.66943 1.18% - 0s 0 0 779.90490 0 90 789.00000 779.90490 1.15% - 0s 0 0 779.95366 0 90 789.00000 779.95366 1.15% - 0s 0 0 779.98790 0 93 789.00000 779.98790 1.14% - 0s 0 0 779.98790 0 94 789.00000 779.98790 1.14% - 0s 0 0 780.01053 0 96 789.00000 780.01053 1.14% - 0s 0 0 780.02005 0 97 789.00000 780.02005 1.14% - 0s 0 0 780.03642 0 96 789.00000 780.03642 1.14% - 0s 0 0 780.03803 0 97 789.00000 780.03803 1.14% - 0s 0 0 780.03952 0 98 789.00000 780.03952 1.14% - 0s 0 0 780.03952 0 98 789.00000 780.03952 1.14% - 0s 0 2 780.04071 0 98 789.00000 780.04071 1.14% - 0s H 27 21 786.0000000 780.86048 0.65% 17.6 0s * 416 156 17 785.0000000 781.89810 0.40% 11.9 1s Explored 1168 nodes (14246 simplex iterations) in 2.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (4, 17), (4, 45), (17, 64), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (29, 62), (29, 75), (31, 75), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (14, 55), (14, 58), (8, 54), (20, 54), (20, 55), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72)] adding cut for [(32, 56), (39, 66), (40, 41), (9, 36), (9, 47), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (26, 56), (60, 67)] Optimize a model with 207 rows, 2850 columns and 49089 nonzeros Presolve time: 0.04s Presolved: 207 rows, 2850 columns, 49089 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.791843e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.18428 0 85 2525.00000 779.18428 69.1% - 0s Another try with MIP start H 0 0 791.0000000 779.18428 1.49% - 0s 0 0 779.34028 0 82 791.00000 779.34028 1.47% - 0s 0 0 779.34028 0 85 791.00000 779.34028 1.47% - 0s 0 0 779.68078 0 84 791.00000 779.68078 1.43% - 0s 0 0 779.90277 0 91 791.00000 779.90277 1.40% - 0s 0 0 779.95937 0 92 791.00000 779.95937 1.40% - 0s 0 0 779.98423 0 94 791.00000 779.98423 1.39% - 0s 0 0 780.04135 0 95 791.00000 780.04135 1.39% - 0s 0 0 780.04135 0 96 791.00000 780.04135 1.39% - 0s 0 0 780.05446 0 98 791.00000 780.05446 1.38% - 0s 0 0 780.05680 0 98 791.00000 780.05680 1.38% - 0s 0 0 780.06380 0 99 791.00000 780.06380 1.38% - 0s 0 0 780.06657 0 97 791.00000 780.06657 1.38% - 0s 0 0 780.07320 0 95 791.00000 780.07320 1.38% - 0s 0 0 780.07320 0 96 791.00000 780.07320 1.38% - 0s 0 0 780.08006 0 100 791.00000 780.08006 1.38% - 0s 0 0 780.08142 0 100 791.00000 780.08142 1.38% - 0s 0 2 780.08278 0 100 791.00000 780.08278 1.38% - 0s * 82 66 51 790.0000000 780.18911 1.24% 14.7 0s * 104 44 19 785.0000000 780.77740 0.54% 15.2 0s Cutting planes: Gomory: 4 MIR: 6 Zero half: 11 Explored 850 nodes (11049 simplex iterations) in 1.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (9, 20), (9, 47), (14, 28), (14, 55), (16, 38), (16, 58), (17, 50), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 58), (34, 64), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (4, 41), (4, 45), (40, 73), (10, 40), (10, 26), (13, 41), (26, 56), (59, 73)] adding cut for [(32, 66), (66, 67), (36, 54), (11, 32), (11, 39), (12, 39), (12, 54), (15, 36), (15, 60), (60, 67)] Optimize a model with 210 rows, 2850 columns and 49708 nonzeros Presolve time: 0.04s Presolved: 210 rows, 2850 columns, 49708 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 253 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.21501 2.11% - 0s 0 0 779.34496 0 82 796.00000 779.34496 2.09% - 0s 0 0 779.34496 0 84 796.00000 779.34496 2.09% - 0s 0 0 779.74409 0 85 796.00000 779.74409 2.04% - 0s 0 0 779.94860 0 86 796.00000 779.94860 2.02% - 0s 0 0 779.94982 0 90 796.00000 779.94982 2.02% - 0s 0 0 779.96909 0 91 796.00000 779.96909 2.01% - 0s 0 0 779.96909 0 92 796.00000 779.96909 2.01% - 0s 0 0 780.01157 0 91 796.00000 780.01157 2.01% - 0s 0 0 780.01157 0 92 796.00000 780.01157 2.01% - 0s 0 0 780.03536 0 97 796.00000 780.03536 2.01% - 0s 0 0 780.03536 0 98 796.00000 780.03536 2.01% - 0s 0 0 780.05268 0 93 796.00000 780.05268 2.00% - 0s 0 0 780.05378 0 93 796.00000 780.05378 2.00% - 0s 0 0 780.05933 0 94 796.00000 780.05933 2.00% - 0s H 0 0 792.0000000 780.05933 1.51% - 1s H 0 0 789.0000000 780.05933 1.13% - 1s 0 2 780.06538 0 94 789.00000 780.06538 1.13% - 1s * 28 25 20 787.0000000 780.71592 0.80% 17.0 1s * 31 20 19 786.0000000 780.71592 0.67% 15.4 1s * 109 43 18 785.0000000 780.83343 0.53% 14.9 1s Cutting planes: Gomory: 3 MIR: 4 Zero half: 13 Explored 668 nodes (8489 simplex iterations) in 1.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (4, 25), (4, 45), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (29, 63), (29, 75), (34, 64), (34, 74), (41, 45), (42, 43), (42, 44), (43, 65), (50, 57)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (9, 36), (14, 55), (14, 58), (15, 36), (15, 60), (48, 49), (20, 55), (20, 60), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(32, 40), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (13, 59), (40, 73), (59, 73)] adding cut for [(19, 51), (19, 56), (33, 51), (10, 33), (10, 26), (26, 56)] Optimize a model with 214 rows, 2850 columns and 50210 nonzeros Presolve time: 0.05s Presolved: 214 rows, 2850 columns, 50210 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 219 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.74409 0 85 799.00000 779.74409 2.41% - 0s 0 0 779.94860 0 86 799.00000 779.94860 2.38% - 0s 0 0 779.94982 0 90 799.00000 779.94982 2.38% - 0s 0 0 779.96712 0 91 799.00000 779.96712 2.38% - 0s 0 0 779.96712 0 92 799.00000 779.96712 2.38% - 0s 0 0 779.98836 0 89 799.00000 779.98836 2.38% - 0s 0 0 779.98978 0 92 799.00000 779.98978 2.38% - 0s 0 0 780.00249 0 90 799.00000 780.00249 2.38% - 0s 0 0 780.00249 0 93 799.00000 780.00249 2.38% - 0s 0 0 780.01310 0 94 799.00000 780.01310 2.38% - 0s 0 0 780.01420 0 97 799.00000 780.01420 2.38% - 0s 0 0 780.05989 0 97 799.00000 780.05989 2.37% - 0s 0 0 780.05989 0 99 799.00000 780.05989 2.37% - 0s 0 0 780.08393 0 93 799.00000 780.08393 2.37% - 0s 0 0 780.08395 0 95 799.00000 780.08395 2.37% - 0s 0 0 780.10041 0 90 799.00000 780.10041 2.37% - 0s 0 0 780.10200 0 99 799.00000 780.10200 2.37% - 0s 0 0 780.10434 0 99 799.00000 780.10434 2.36% - 1s H 0 0 796.0000000 780.10434 2.00% - 1s H 0 0 790.0000000 780.10434 1.25% - 1s 0 2 780.13660 0 99 790.00000 780.13660 1.25% - 1s * 50 38 37 789.0000000 780.83992 1.03% 13.9 1s * 207 119 21 787.0000000 781.20057 0.74% 14.0 2s H 387 99 785.0000000 781.68457 0.42% 13.3 2s Cutting planes: Gomory: 4 MIR: 4 Zero half: 14 Explored 889 nodes (11095 simplex iterations) in 2.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (4, 17), (4, 45), (10, 33), (10, 40), (11, 32), (11, 59), (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), (50, 64), (59, 73)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (28, 58), (14, 28), (14, 55), (48, 49), (53, 55), (22, 48), (22, 62), (21, 71), (21, 38), (61, 71), (61, 72), (62, 70), (37, 70), (37, 72)] adding cut for [(66, 67), (12, 67), (12, 39), (39, 66)] Optimize a model with 217 rows, 2850 columns and 50738 nonzeros Presolve time: 0.05s Presolved: 217 rows, 2850 columns, 50738 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.73362 0 86 799.00000 779.73362 2.41% - 0s 0 0 779.94287 0 88 799.00000 779.94287 2.39% - 0s 0 0 779.94287 0 91 799.00000 779.94287 2.39% - 0s 0 0 779.95854 0 90 799.00000 779.95854 2.38% - 0s 0 0 779.95854 0 91 799.00000 779.95854 2.38% - 0s 0 0 779.95858 0 92 799.00000 779.95858 2.38% - 0s 0 0 779.95858 0 92 799.00000 779.95858 2.38% - 0s H 0 0 795.0000000 779.95858 1.89% - 0s 0 2 780.06996 0 92 795.00000 780.06996 1.88% - 1s * 35 35 25 789.0000000 780.73715 1.05% 17.0 1s * 73 42 29 787.0000000 781.00000 0.76% 15.0 1s * 590 218 15 786.0000000 782.62500 0.43% 13.1 1s * 599 106 15 785.0000000 782.62500 0.30% 13.0 1s Cutting planes: Gomory: 4 MIR: 4 Zero half: 5 Explored 939 nodes (11559 simplex iterations) in 2.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (30, 46), (32, 66), (37, 70), (37, 72), (39, 59), (48, 49), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (4, 45), (4, 25), (40, 73), (10, 40), (10, 26), (13, 73), (17, 50), (25, 50), (26, 56)] adding cut for [(2, 74), (2, 23), (43, 65), (43, 44), (34, 64), (34, 74), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 220 rows, 2850 columns and 51319 nonzeros Presolve time: 0.05s Presolved: 220 rows, 2850 columns, 51319 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 214 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.21501 1.24% - 0s 0 0 779.34496 0 82 789.00000 779.34496 1.22% - 0s 0 0 779.34496 0 84 789.00000 779.34496 1.22% - 0s 0 0 779.73362 0 86 789.00000 779.73362 1.17% - 0s 0 0 779.94287 0 88 789.00000 779.94287 1.15% - 0s 0 0 779.94287 0 91 789.00000 779.94287 1.15% - 0s 0 0 779.95930 0 91 789.00000 779.95930 1.15% - 0s 0 0 780.00119 0 93 789.00000 780.00119 1.14% - 0s 0 0 780.06552 0 94 789.00000 780.06552 1.13% - 0s 0 0 780.06774 0 93 789.00000 780.06774 1.13% - 0s 0 0 780.07594 0 93 789.00000 780.07594 1.13% - 0s 0 0 780.07594 0 97 789.00000 780.07594 1.13% - 0s 0 0 780.08528 0 97 789.00000 780.08528 1.13% - 0s 0 0 780.08649 0 98 789.00000 780.08649 1.13% - 0s 0 0 780.08683 0 95 789.00000 780.08683 1.13% - 0s 0 0 780.08683 0 95 789.00000 780.08683 1.13% - 0s 0 2 780.10774 0 93 789.00000 780.10774 1.13% - 0s H 76 37 786.0000000 781.32469 0.59% 13.2 1s * 393 104 19 785.0000000 782.17329 0.36% 12.8 1s Cutting planes: Gomory: 3 MIR: 6 Zero half: 9 Explored 861 nodes (10463 simplex iterations) in 1.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 45), (9, 36), (9, 53), (10, 33), (10, 40), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (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), (35, 53), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 67), (12, 54), (13, 73), (59, 73)] Optimize a model with 222 rows, 2850 columns and 52267 nonzeros Presolve time: 0.05s Presolved: 222 rows, 2850 columns, 52267 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 202 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.21501 1.24% - 0s 0 0 779.34496 0 82 789.00000 779.34496 1.22% - 0s 0 0 779.34496 0 84 789.00000 779.34496 1.22% - 0s 0 0 779.74466 0 85 789.00000 779.74466 1.17% - 0s 0 0 779.94894 0 87 789.00000 779.94894 1.15% - 0s 0 0 779.95085 0 90 789.00000 779.95085 1.15% - 0s 0 0 779.96704 0 89 789.00000 779.96704 1.14% - 0s 0 0 780.01894 0 93 789.00000 780.01894 1.14% - 0s H 0 0 788.0000000 780.01894 1.01% - 0s 0 0 780.02016 0 91 788.00000 780.02016 1.01% - 0s 0 0 780.02448 0 98 788.00000 780.02448 1.01% - 0s 0 0 780.05866 0 85 788.00000 780.05866 1.01% - 0s 0 0 780.06016 0 94 788.00000 780.06016 1.01% - 0s 0 0 780.06321 0 93 788.00000 780.06321 1.01% - 0s 0 0 780.08301 0 96 788.00000 780.08301 1.00% - 0s 0 0 780.09662 0 97 788.00000 780.09662 1.00% - 0s 0 0 780.09878 0 99 788.00000 780.09878 1.00% - 0s 0 0 780.10619 0 92 788.00000 780.10619 1.00% - 0s 0 0 780.10841 0 100 788.00000 780.10841 1.00% - 0s 0 0 780.10990 0 99 788.00000 780.10990 1.00% - 0s 0 0 780.11001 0 102 788.00000 780.11001 1.00% - 0s 0 2 780.12764 0 102 788.00000 780.12764 1.00% - 0s * 71 51 26 787.0000000 781.03039 0.76% 14.2 1s * 161 58 14 785.0000000 781.18293 0.49% 13.9 1s Cutting planes: Gomory: 4 MIR: 6 Zero half: 12 Explored 642 nodes (8548 simplex iterations) in 1.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (9, 20), (9, 53), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (17, 50), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 58), (34, 64), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (55, 60), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (66, 67), (4, 41), (4, 45), (33, 51), (33, 45), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (8, 36), (19, 51), (19, 56), (39, 66), (26, 56), (36, 54)] adding cut for [(3, 63), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49), (30, 31)] Optimize a model with 225 rows, 2850 columns and 53002 nonzeros Presolve time: 0.05s Presolved: 225 rows, 2850 columns, 53002 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.74466 0 85 799.00000 779.74466 2.41% - 0s 0 0 779.94894 0 89 799.00000 779.94894 2.38% - 0s 0 0 779.97156 0 90 799.00000 779.97156 2.38% - 0s 0 0 780.01635 0 95 799.00000 780.01635 2.38% - 0s 0 0 780.02024 0 92 799.00000 780.02024 2.38% - 0s 0 0 780.03051 0 94 799.00000 780.03051 2.37% - 0s 0 0 780.04587 0 95 799.00000 780.04587 2.37% - 0s 0 0 780.05506 0 95 799.00000 780.05506 2.37% - 0s 0 0 780.06273 0 97 799.00000 780.06273 2.37% - 0s 0 0 780.07436 0 96 799.00000 780.07436 2.37% - 0s 0 0 780.07889 0 94 799.00000 780.07889 2.37% - 0s 0 0 780.08754 0 99 799.00000 780.08754 2.37% - 0s 0 0 780.08933 0 100 799.00000 780.08933 2.37% - 0s 0 0 780.09463 0 100 799.00000 780.09463 2.37% - 0s 0 0 780.09463 0 100 799.00000 780.09463 2.37% - 0s 0 2 780.10268 0 100 799.00000 780.10268 2.37% - 0s * 81 69 48 790.0000000 780.20870 1.24% 19.3 1s * 128 65 37 788.0000000 780.38888 0.97% 16.4 1s * 204 90 24 787.0000000 780.90842 0.77% 15.3 1s * 238 85 19 786.0000000 780.94616 0.64% 15.5 1s * 387 76 13 785.0000000 781.71172 0.42% 15.2 1s Cutting planes: Gomory: 4 MIR: 4 Zero half: 12 Explored 812 nodes (11139 simplex iterations) in 1.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 38), (9, 36), (9, 47), (10, 26), (10, 40), (13, 40), (14, 28), (14, 55), (15, 36), (15, 60), (16, 30), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54), (59, 73)] Optimize a model with 227 rows, 2850 columns and 53788 nonzeros Presolve time: 0.05s Presolved: 227 rows, 2850 columns, 53788 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.74466 0 85 799.00000 779.74466 2.41% - 0s 0 0 779.94894 0 89 799.00000 779.94894 2.38% - 0s 0 0 779.96969 0 91 799.00000 779.96969 2.38% - 0s 0 0 779.99921 0 89 799.00000 779.99921 2.38% - 0s 0 0 780.00596 0 95 799.00000 780.00596 2.38% - 0s 0 0 780.03016 0 92 799.00000 780.03016 2.37% - 0s 0 0 780.03723 0 94 799.00000 780.03723 2.37% - 0s 0 0 780.04513 0 99 799.00000 780.04513 2.37% - 0s 0 0 780.07697 0 94 799.00000 780.07697 2.37% - 0s 0 0 780.07786 0 98 799.00000 780.07786 2.37% - 0s 0 0 780.07786 0 98 799.00000 780.07786 2.37% - 1s H 0 0 792.0000000 780.07786 1.51% - 1s 0 2 780.10623 0 98 792.00000 780.10623 1.50% - 1s * 108 54 27 789.0000000 781.05920 1.01% 12.6 1s * 206 94 31 788.0000000 781.15869 0.87% 12.1 1s * 242 104 23 787.0000000 781.19231 0.74% 13.0 1s * 723 270 31 786.0000000 782.20000 0.48% 13.8 2s * 1115 192 32 785.0000000 782.46774 0.32% 12.9 2s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 1427 nodes (18140 simplex iterations) in 3.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (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, 75), (32, 56), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 228 rows, 2850 columns and 54568 nonzeros Presolve time: 0.05s Presolved: 228 rows, 2850 columns, 54568 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.73873 0 85 799.00000 779.73873 2.41% - 0s 0 0 779.94287 0 91 799.00000 779.94287 2.39% - 0s 0 0 779.95889 0 92 799.00000 779.95889 2.38% - 0s 0 0 780.00119 0 94 799.00000 780.00119 2.38% - 0s 0 0 780.06229 0 94 799.00000 780.06229 2.37% - 0s 0 0 780.06583 0 96 799.00000 780.06583 2.37% - 0s 0 0 780.07055 0 97 799.00000 780.07055 2.37% - 0s 0 0 780.07055 0 97 799.00000 780.07055 2.37% - 0s H 0 0 793.0000000 780.07055 1.63% - 0s H 0 0 789.0000000 780.07055 1.13% - 1s 0 2 780.07541 0 97 789.00000 780.07541 1.13% - 1s * 135 90 27 788.0000000 781.31250 0.85% 11.5 1s H 333 169 787.0000000 781.77298 0.66% 12.6 1s * 429 139 18 786.0000000 782.14286 0.49% 12.7 1s * 866 155 27 785.0000000 782.50000 0.32% 13.2 2s Cutting planes: Gomory: 2 MIR: 2 Zero half: 6 Explored 1275 nodes (16335 simplex iterations) in 2.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (9, 36), (9, 47), (10, 33), (10, 40), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 49), (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), (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 [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 67), (12, 54), (13, 41), (13, 59)] Optimize a model with 230 rows, 2850 columns and 55603 nonzeros Presolve time: 0.05s Presolved: 230 rows, 2850 columns, 55603 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 216 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 791.0000000 779.21501 1.49% - 0s 0 0 779.34496 0 82 791.00000 779.34496 1.47% - 0s 0 0 779.34496 0 84 791.00000 779.34496 1.47% - 0s 0 0 779.74518 0 86 791.00000 779.74518 1.42% - 0s 0 0 779.94924 0 87 791.00000 779.94924 1.40% - 0s 0 0 779.95198 0 89 791.00000 779.95198 1.40% - 0s 0 0 779.96730 0 91 791.00000 779.96730 1.39% - 0s 0 0 779.96730 0 92 791.00000 779.96730 1.39% - 0s 0 0 780.02834 0 94 791.00000 780.02834 1.39% - 0s 0 0 780.02834 0 97 791.00000 780.02834 1.39% - 0s 0 0 780.07891 0 97 791.00000 780.07891 1.38% - 0s 0 0 780.07891 0 98 791.00000 780.07891 1.38% - 0s 0 0 780.09209 0 96 791.00000 780.09209 1.38% - 0s 0 0 780.09209 0 98 791.00000 780.09209 1.38% - 0s 0 0 780.09784 0 100 791.00000 780.09784 1.38% - 0s H 0 0 790.0000000 780.09784 1.25% - 0s 0 2 780.10335 0 100 790.00000 780.10335 1.25% - 1s H 42 31 789.0000000 781.05304 1.01% 16.6 1s * 165 97 22 787.0000000 781.18617 0.74% 13.6 1s * 1161 291 32 786.0000000 782.62566 0.43% 14.2 3s * 2288 25 27 785.0000000 783.93421 0.14% 13.0 4s Cutting planes: Gomory: 2 MIR: 2 Zero half: 7 Explored 2314 nodes (30337 simplex iterations) in 4.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 54), (11, 32), (11, 59), (12, 54), (12, 67), (14, 28), (14, 55), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (35, 53), (37, 70), (37, 72), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (53, 55), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 64), (2, 74), (34, 64), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (30, 49), (63, 74)] Optimize a model with 232 rows, 2850 columns and 56372 nonzeros Presolve time: 0.05s Presolved: 232 rows, 2850 columns, 56372 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 202 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.34496 0 82 799.00000 779.34496 2.46% - 0s 0 0 779.34496 0 84 799.00000 779.34496 2.46% - 0s 0 0 779.73873 0 85 799.00000 779.73873 2.41% - 0s 0 0 779.94330 0 89 799.00000 779.94330 2.39% - 0s 0 0 779.94330 0 92 799.00000 779.94330 2.39% - 0s 0 0 779.96267 0 92 799.00000 779.96267 2.38% - 0s 0 0 779.96267 0 93 799.00000 779.96267 2.38% - 0s 0 0 780.02135 0 89 799.00000 780.02135 2.38% - 0s 0 0 780.02203 0 90 799.00000 780.02203 2.38% - 0s 0 0 780.02718 0 94 799.00000 780.02718 2.37% - 0s 0 0 780.03029 0 97 799.00000 780.03029 2.37% - 0s 0 0 780.07141 0 96 799.00000 780.07141 2.37% - 0s 0 0 780.07815 0 97 799.00000 780.07815 2.37% - 0s 0 0 780.08968 0 96 799.00000 780.08968 2.37% - 0s 0 0 780.09070 0 97 799.00000 780.09070 2.37% - 0s 0 0 780.09272 0 97 799.00000 780.09272 2.37% - 0s H 0 0 789.0000000 780.09272 1.13% - 1s H 0 0 788.0000000 780.09272 1.00% - 1s 0 2 780.12309 0 97 788.00000 780.12309 1.00% - 1s * 147 88 29 787.0000000 781.67982 0.68% 14.3 1s * 229 111 19 786.0000000 781.82057 0.53% 14.8 1s * 1327 108 26 785.0000000 782.82629 0.28% 13.7 3s Explored 1554 nodes (20759 simplex iterations) in 3.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.850000000000e+02, best bound 7.850000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (4, 25), (4, 45), (9, 20), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (15, 54), (15, 60), (19, 51), (19, 56), (20, 60), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 62), (29, 63), (32, 66), (33, 45), (33, 51), (34, 64), (34, 74), (39, 59), (40, 73), (42, 43), (42, 44), (43, 65), (50, 57), (59, 73), (66, 67)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (28, 58), (14, 28), (14, 55), (49, 75), (21, 71), (21, 38), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (30, 46), (53, 55)] Optimize a model with 234 rows, 2850 columns and 57342 nonzeros Presolve time: 0.05s Presolved: 234 rows, 2850 columns, 57342 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.33351 0 86 799.00000 779.33351 2.46% - 0s 0 0 779.33351 0 84 799.00000 779.33351 2.46% - 0s 0 0 779.60415 0 82 799.00000 779.60415 2.43% - 0s 0 0 779.93353 0 85 799.00000 779.93353 2.39% - 0s 0 0 779.97473 0 94 799.00000 779.97473 2.38% - 0s 0 0 780.00089 0 96 799.00000 780.00089 2.38% - 0s 0 0 780.03350 0 97 799.00000 780.03350 2.37% - 0s 0 0 780.06202 0 98 799.00000 780.06202 2.37% - 0s 0 0 780.06881 0 99 799.00000 780.06881 2.37% - 0s 0 0 780.09497 0 96 799.00000 780.09497 2.37% - 0s 0 0 780.09775 0 100 799.00000 780.09775 2.37% - 0s 0 0 780.11638 0 97 799.00000 780.11638 2.36% - 0s 0 0 780.11795 0 100 799.00000 780.11795 2.36% - 0s 0 0 780.11795 0 101 799.00000 780.11795 2.36% - 0s 0 2 780.13020 0 101 799.00000 780.13020 2.36% - 0s * 57 57 33 793.0000000 780.32961 1.60% 20.1 1s * 70 58 42 792.0000000 780.32961 1.47% 18.0 1s * 234 112 28 787.0000000 780.40271 0.84% 16.0 1s * 1004 320 21 786.0000000 782.23454 0.48% 16.6 2s Cutting planes: Gomory: 3 MIR: 2 Zero half: 7 Explored 3161 nodes (41510 simplex iterations) in 4.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 25), (4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (14, 28), (14, 58), (16, 58), (19, 51), (19, 56), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (28, 46), (33, 45), (33, 51), (34, 64), (34, 74), (37, 70), (37, 72), (40, 41), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (39, 66), (39, 59), (11, 32), (11, 59), (12, 66), (12, 67), (13, 73), (15, 20), (15, 60), (20, 55), (53, 55), (60, 67)] Optimize a model with 236 rows, 2850 columns and 58099 nonzeros Presolve time: 0.05s Presolved: 236 rows, 2850 columns, 58099 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.21501 2.11% - 0s 0 0 779.34496 0 82 796.00000 779.34496 2.09% - 0s 0 0 779.34496 0 84 796.00000 779.34496 2.09% - 0s 0 0 779.74997 0 85 796.00000 779.74997 2.04% - 0s 0 0 779.94924 0 90 796.00000 779.94924 2.02% - 0s 0 0 779.96933 0 92 796.00000 779.96933 2.01% - 0s 0 0 780.02873 0 98 796.00000 780.02873 2.01% - 0s 0 0 780.07875 0 96 796.00000 780.07875 2.00% - 0s 0 0 780.09783 0 95 796.00000 780.09783 2.00% - 0s 0 0 780.09786 0 95 796.00000 780.09786 2.00% - 0s 0 0 780.11535 0 97 796.00000 780.11535 2.00% - 0s 0 0 780.11709 0 96 796.00000 780.11709 2.00% - 0s 0 0 780.11735 0 99 796.00000 780.11735 2.00% - 0s 0 0 780.12421 0 103 796.00000 780.12421 1.99% - 0s 0 0 780.12421 0 105 796.00000 780.12421 1.99% - 0s 0 0 780.13572 0 101 796.00000 780.13572 1.99% - 0s 0 0 780.13572 0 102 796.00000 780.13572 1.99% - 0s 0 0 780.15729 0 100 796.00000 780.15729 1.99% - 0s 0 0 780.15729 0 101 796.00000 780.15729 1.99% - 0s 0 0 780.16904 0 97 796.00000 780.16904 1.99% - 0s 0 0 780.16926 0 100 796.00000 780.16926 1.99% - 0s 0 0 780.16926 0 101 796.00000 780.16926 1.99% - 1s 0 2 780.17160 0 101 796.00000 780.17160 1.99% - 1s * 70 58 47 788.0000000 780.83797 0.91% 17.5 1s * 414 237 19 787.0000000 781.23426 0.73% 12.9 1s H 863 365 786.0000000 781.74351 0.54% 13.7 3s 2827 211 784.80000 24 53 786.00000 783.98801 0.26% 12.2 5s Cutting planes: Gomory: 7 MIR: 2 Zero half: 3 Explored 3228 nodes (38740 simplex iterations) in 5.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(4, 45), (6, 38), (6, 49), (10, 33), (10, 40), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (31, 49), (32, 40), (32, 56), (33, 45), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 36), (11, 39), (11, 59), (12, 67), (12, 54), (13, 73), (13, 41), (59, 73)] adding cut for [(28, 58), (9, 20), (9, 47), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (16, 30), (55, 60), (30, 46)] Optimize a model with 239 rows, 2850 columns and 58727 nonzeros Presolve time: 0.05s Presolved: 239 rows, 2850 columns, 58727 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.33351 0 86 799.00000 779.33351 2.46% - 0s 0 0 779.33351 0 84 799.00000 779.33351 2.46% - 0s 0 0 779.60415 0 82 799.00000 779.60415 2.43% - 0s 0 0 779.93353 0 85 799.00000 779.93353 2.39% - 0s 0 0 779.95067 0 93 799.00000 779.95067 2.38% - 0s 0 0 779.96514 0 97 799.00000 779.96514 2.38% - 0s 0 0 779.96514 0 98 799.00000 779.96514 2.38% - 0s 0 0 780.01714 0 93 799.00000 780.01714 2.38% - 0s 0 0 780.01714 0 96 799.00000 780.01714 2.38% - 0s 0 0 780.04115 0 99 799.00000 780.04115 2.37% - 0s 0 0 780.04115 0 100 799.00000 780.04115 2.37% - 0s 0 0 780.04453 0 96 799.00000 780.04453 2.37% - 0s 0 0 780.04538 0 98 799.00000 780.04538 2.37% - 0s 0 2 780.06434 0 98 799.00000 780.06434 2.37% - 1s * 55 45 47 790.0000000 780.87535 1.16% 12.4 1s * 161 90 43 787.0000000 781.12997 0.75% 12.3 1s * 1042 272 21 786.0000000 782.48969 0.45% 13.9 3s Cutting planes: Gomory: 2 MIR: 2 Zero half: 6 Explored 2429 nodes (30826 simplex iterations) in 4.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(4, 45), (9, 36), (9, 53), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (28, 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 [(66, 67), (39, 66), (8, 54), (11, 39), (11, 59), (12, 67), (12, 54)] Optimize a model with 241 rows, 2850 columns and 59421 nonzeros Presolve time: 0.05s Presolved: 241 rows, 2850 columns, 59421 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 800.0000000 779.21501 2.60% - 0s H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.33351 0 86 799.00000 779.33351 2.46% - 0s 0 0 779.33351 0 84 799.00000 779.33351 2.46% - 0s 0 0 779.60415 0 82 799.00000 779.60415 2.43% - 0s 0 0 779.93353 0 85 799.00000 779.93353 2.39% - 0s 0 0 779.97473 0 94 799.00000 779.97473 2.38% - 0s 0 0 780.00089 0 96 799.00000 780.00089 2.38% - 0s 0 0 780.03350 0 97 799.00000 780.03350 2.37% - 0s 0 0 780.06202 0 98 799.00000 780.06202 2.37% - 0s 0 0 780.06981 0 99 799.00000 780.06981 2.37% - 0s 0 0 780.09683 0 96 799.00000 780.09683 2.37% - 0s 0 0 780.09693 0 98 799.00000 780.09693 2.37% - 0s 0 0 780.10382 0 104 799.00000 780.10382 2.36% - 0s 0 0 780.13278 0 99 799.00000 780.13278 2.36% - 0s 0 0 780.13480 0 99 799.00000 780.13480 2.36% - 0s 0 0 780.13744 0 106 799.00000 780.13744 2.36% - 0s H 0 0 789.0000000 780.13744 1.12% - 1s 0 2 780.15791 0 106 789.00000 780.15791 1.12% - 1s * 79 60 29 788.0000000 781.40384 0.84% 18.4 1s * 277 143 23 787.0000000 781.85592 0.65% 15.4 1s * 1275 303 29 786.0000000 782.63736 0.43% 15.3 3s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 2847 nodes (37850 simplex iterations) in 4.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 54), (14, 55), (14, 58), (16, 38), (16, 58), (17, 50), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 41), (4, 45), (9, 36), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 36), (15, 60), (19, 51), (19, 56), (26, 56), (28, 46), (28, 53), (32, 40), (33, 45), (33, 51), (39, 66), (66, 67)] Optimize a model with 243 rows, 2850 columns and 60139 nonzeros Presolve time: 0.05s Presolved: 243 rows, 2850 columns, 60139 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 221 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 806.0000000 779.21501 3.32% - 0s H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.33351 0 86 799.00000 779.33351 2.46% - 0s 0 0 779.33351 0 84 799.00000 779.33351 2.46% - 0s 0 0 779.60415 0 82 799.00000 779.60415 2.43% - 0s 0 0 779.93353 0 85 799.00000 779.93353 2.39% - 0s 0 0 779.97473 0 94 799.00000 779.97473 2.38% - 0s 0 0 780.00089 0 96 799.00000 780.00089 2.38% - 0s 0 0 780.03350 0 97 799.00000 780.03350 2.37% - 0s 0 0 780.06202 0 98 799.00000 780.06202 2.37% - 0s 0 0 780.06881 0 99 799.00000 780.06881 2.37% - 0s 0 0 780.09497 0 96 799.00000 780.09497 2.37% - 0s 0 0 780.09693 0 100 799.00000 780.09693 2.37% - 0s 0 0 780.11638 0 97 799.00000 780.11638 2.36% - 0s 0 0 780.11795 0 100 799.00000 780.11795 2.36% - 0s 0 0 780.11795 0 101 799.00000 780.11795 2.36% - 0s 0 2 780.13020 0 101 799.00000 780.13020 2.36% - 1s * 63 63 38 789.0000000 780.32961 1.10% 18.7 1s * 150 98 26 787.0000000 780.59659 0.81% 17.7 1s * 192 99 25 786.0000000 780.75982 0.67% 16.8 1s Explored 2210 nodes (28520 simplex iterations) in 3.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(3, 75), (9, 36), (9, 53), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (29, 62), (29, 75), (36, 54), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (66, 67), (4, 41), (4, 45), (33, 51), (33, 45), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 60), (8, 15), (19, 51), (19, 56), (39, 66), (26, 56)] adding cut for [(2, 64), (2, 44), (42, 43), (42, 44), (43, 65), (34, 74), (17, 50), (25, 50), (25, 57), (24, 64), (24, 57), (23, 65), (23, 63), (63, 74)] Optimize a model with 246 rows, 2850 columns and 60668 nonzeros Presolve time: 0.05s Presolved: 246 rows, 2850 columns, 60668 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 221 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.21501 2.11% - 0s 0 0 779.34496 0 82 796.00000 779.34496 2.09% - 0s 0 0 779.34496 0 84 796.00000 779.34496 2.09% - 0s 0 0 779.74072 0 88 796.00000 779.74072 2.04% - 0s 0 0 779.94330 0 89 796.00000 779.94330 2.02% - 0s 0 0 779.94330 0 92 796.00000 779.94330 2.02% - 0s 0 0 779.96267 0 92 796.00000 779.96267 2.01% - 0s 0 0 779.96267 0 93 796.00000 779.96267 2.01% - 0s 0 0 780.02082 0 86 796.00000 780.02082 2.01% - 0s 0 0 780.03421 0 92 796.00000 780.03421 2.01% - 0s 0 0 780.03548 0 88 796.00000 780.03548 2.01% - 0s 0 0 780.03677 0 95 796.00000 780.03677 2.01% - 0s 0 0 780.03874 0 93 796.00000 780.03874 2.01% - 0s 0 0 780.03874 0 94 796.00000 780.03874 2.01% - 0s H 0 0 789.0000000 780.03874 1.14% - 1s H 0 0 788.0000000 780.03874 1.01% - 1s 0 2 780.05451 0 94 788.00000 780.05451 1.01% - 1s * 134 89 19 787.0000000 781.66573 0.68% 15.7 1s * 287 129 25 786.0000000 781.97949 0.51% 13.6 1s Cutting planes: Gomory: 3 MIR: 2 Zero half: 4 Explored 2267 nodes (28727 simplex iterations) in 3.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(8, 54), (9, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 56), (20, 54), (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, 40), (33, 51), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 247 rows, 2850 columns and 61658 nonzeros Presolve time: 0.05s Presolved: 247 rows, 2850 columns, 61658 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.21501 2.48% - 0s 0 0 779.36982 0 84 799.00000 779.36982 2.46% - 0s 0 0 779.36982 0 84 799.00000 779.36982 2.46% - 0s 0 0 779.74791 0 85 799.00000 779.74791 2.41% - 0s 0 0 779.98207 0 88 799.00000 779.98207 2.38% - 0s 0 0 780.01162 0 92 799.00000 780.01162 2.38% - 0s 0 0 780.02430 0 94 799.00000 780.02430 2.37% - 0s 0 0 780.04319 0 95 799.00000 780.04319 2.37% - 0s 0 0 780.04666 0 96 799.00000 780.04666 2.37% - 0s 0 0 780.05134 0 96 799.00000 780.05134 2.37% - 0s 0 0 780.06712 0 95 799.00000 780.06712 2.37% - 0s 0 0 780.11071 0 95 799.00000 780.11071 2.36% - 0s 0 0 780.12629 0 99 799.00000 780.12629 2.36% - 0s 0 0 780.12978 0 98 799.00000 780.12978 2.36% - 0s 0 0 780.15741 0 95 799.00000 780.15741 2.36% - 0s 0 0 780.15811 0 99 799.00000 780.15811 2.36% - 0s 0 0 780.16060 0 100 799.00000 780.16060 2.36% - 0s 0 0 780.16060 0 100 799.00000 780.16060 2.36% - 1s 0 2 780.22637 0 100 799.00000 780.22637 2.35% - 1s * 128 67 35 788.0000000 781.11193 0.87% 14.0 2s * 162 75 26 787.0000000 781.14315 0.74% 14.1 2s * 271 105 18 786.0000000 781.76259 0.54% 14.8 2s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 2378 nodes (31705 simplex iterations) in 4.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 45), (10, 33), (10, 40), (19, 25), (19, 51), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 40), (32, 56), (33, 45), (34, 74), (42, 43), (42, 44), (43, 65), (50, 57), (63, 74)] adding cut for [(3, 75), (8, 15), (14, 28), (14, 55), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (36, 54), (39, 66), (9, 36), (9, 53), (11, 39), (11, 59), (12, 67), (12, 54), (13, 41), (13, 73), (59, 73)] Optimize a model with 250 rows, 2850 columns and 62243 nonzeros Presolve time: 0.05s Presolved: 250 rows, 2850 columns, 62243 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792150e+02, 211 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.21501 0 84 2525.00000 779.21501 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.21501 2.23% - 0s 0 0 779.36982 0 84 797.00000 779.36982 2.21% - 0s 0 0 779.36982 0 84 797.00000 779.36982 2.21% - 0s 0 0 779.75912 0 84 797.00000 779.75912 2.16% - 0s 0 0 780.00200 0 91 797.00000 780.00200 2.13% - 0s 0 0 780.07813 0 92 797.00000 780.07813 2.12% - 0s 0 0 780.10336 0 98 797.00000 780.10336 2.12% - 0s 0 0 780.15470 0 97 797.00000 780.15470 2.11% - 0s 0 0 780.16621 0 98 797.00000 780.16621 2.11% - 0s 0 0 780.21146 0 97 797.00000 780.21146 2.11% - 0s 0 0 780.23142 0 96 797.00000 780.23142 2.10% - 0s 0 0 780.23149 0 99 797.00000 780.23149 2.10% - 0s 0 0 780.23444 0 97 797.00000 780.23444 2.10% - 0s 0 0 780.23971 0 97 797.00000 780.23971 2.10% - 0s 0 0 780.24113 0 103 797.00000 780.24113 2.10% - 0s 0 0 780.24634 0 101 797.00000 780.24634 2.10% - 0s 0 0 780.25157 0 99 797.00000 780.25157 2.10% - 0s 0 0 780.25362 0 101 797.00000 780.25362 2.10% - 0s 0 0 780.25387 0 101 797.00000 780.25387 2.10% - 0s 0 0 780.25387 0 101 797.00000 780.25387 2.10% - 0s 0 2 780.25984 0 101 797.00000 780.25984 2.10% - 1s * 69 55 43 788.0000000 780.44817 0.96% 21.7 1s * 953 420 34 787.0000000 781.83342 0.66% 15.0 3s * 1084 326 32 786.0000000 782.12963 0.49% 15.0 3s 2710 137 785.00000 19 32 786.00000 784.12644 0.24% 12.9 5s Cutting planes: Gomory: 6 MIR: 2 Zero half: 4 Explored 2956 nodes (37600 simplex iterations) in 5.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (14, 28), (14, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 44), (24, 57), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(4, 45), (4, 50), (8, 54), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (13, 59), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (66, 67)] Optimize a model with 252 rows, 2850 columns and 62825 nonzeros Presolve time: 0.05s Presolved: 252 rows, 2850 columns, 62825 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 218 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 793.0000000 779.29377 1.73% - 0s 0 0 779.30552 0 87 793.00000 779.30552 1.73% - 0s 0 0 779.30552 0 86 793.00000 779.30552 1.73% - 0s 0 0 779.73055 0 85 793.00000 779.73055 1.67% - 0s 0 0 779.92500 0 86 793.00000 779.92500 1.65% - 0s 0 0 779.99762 0 89 793.00000 779.99762 1.64% - 0s 0 0 780.02282 0 94 793.00000 780.02282 1.64% - 0s 0 0 780.08166 0 95 793.00000 780.08166 1.63% - 0s 0 0 780.11243 0 97 793.00000 780.11243 1.63% - 0s 0 0 780.12775 0 99 793.00000 780.12775 1.62% - 0s 0 0 780.13020 0 101 793.00000 780.13020 1.62% - 0s 0 0 780.14588 0 98 793.00000 780.14588 1.62% - 0s 0 0 780.14588 0 98 793.00000 780.14588 1.62% - 0s 0 2 780.14708 0 98 793.00000 780.14708 1.62% - 1s H 27 27 789.0000000 780.66485 1.06% 21.2 1s * 138 84 21 788.0000000 781.18596 0.86% 16.6 1s * 334 125 13 786.0000000 782.07407 0.50% 15.8 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 9 Explored 2011 nodes (28706 simplex iterations) in 4.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (8, 36), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 49), (28, 46), (28, 53), (30, 46), (37, 48), (37, 70), (55, 60), (61, 71), (61, 72), (70, 72)] adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (4, 45), (4, 17), (42, 44), (42, 57), (43, 65), (43, 44), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (29, 62), (23, 65), (23, 62), (31, 75)] adding cut for [(32, 40), (66, 67), (39, 66), (9, 20), (10, 40), (10, 41), (11, 32), (11, 39), (12, 67), (12, 54), (20, 54)] Optimize a model with 255 rows, 2850 columns and 63354 nonzeros Presolve time: 0.05s Presolved: 255 rows, 2850 columns, 63354 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.29377 1.98% - 0s 0 0 779.30552 0 87 795.00000 779.30552 1.97% - 0s 0 0 779.30552 0 86 795.00000 779.30552 1.97% - 0s 0 0 779.73055 0 83 795.00000 779.73055 1.92% - 0s 0 0 779.92500 0 86 795.00000 779.92500 1.90% - 0s 0 0 780.00617 0 89 795.00000 780.00617 1.89% - 0s 0 0 780.02312 0 95 795.00000 780.02312 1.88% - 0s 0 0 780.10418 0 96 795.00000 780.10418 1.87% - 0s 0 0 780.13259 0 95 795.00000 780.13259 1.87% - 0s 0 0 780.14567 0 94 795.00000 780.14567 1.87% - 0s 0 0 780.14807 0 102 795.00000 780.14807 1.87% - 0s 0 0 780.16614 0 100 795.00000 780.16614 1.87% - 0s 0 0 780.17293 0 98 795.00000 780.17293 1.87% - 0s 0 0 780.18463 0 101 795.00000 780.18463 1.86% - 0s 0 0 780.19341 0 102 795.00000 780.19341 1.86% - 0s 0 0 780.19975 0 104 795.00000 780.19975 1.86% - 0s 0 0 780.20348 0 103 795.00000 780.20348 1.86% - 0s 0 0 780.20348 0 105 795.00000 780.20348 1.86% - 0s 0 0 780.21526 0 105 795.00000 780.21526 1.86% - 0s 0 0 780.22183 0 105 795.00000 780.22183 1.86% - 0s 0 0 780.22267 0 106 795.00000 780.22267 1.86% - 0s 0 0 780.22408 0 107 795.00000 780.22408 1.86% - 0s 0 0 780.22408 0 107 795.00000 780.22408 1.86% - 1s 0 2 780.23090 0 107 795.00000 780.23090 1.86% - 1s * 223 132 42 789.0000000 780.87422 1.03% 15.4 1s * 515 252 30 788.0000000 781.60714 0.81% 14.8 1s * 982 347 28 787.0000000 782.03902 0.63% 15.7 4s 1833 378 cutoff 24 787.00000 783.33333 0.47% 14.8 5s * 1954 282 29 786.0000000 783.43875 0.33% 14.5 5s Cutting planes: Gomory: 9 MIR: 5 Zero half: 9 Explored 2797 nodes (38097 simplex iterations) in 5.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (9, 36), (9, 53), (14, 55), (14, 28), (20, 36), (20, 55), (21, 71), (21, 38), (22, 75), (22, 48), (28, 58), (61, 71), (61, 72)] adding cut for [(2, 64), (2, 44), (42, 43), (42, 44), (43, 65), (34, 74), (17, 50), (25, 50), (25, 57), (24, 64), (24, 57), (29, 62), (29, 63), (23, 65), (23, 62), (63, 74)] adding cut for [(4, 41), (4, 45), (33, 51), (33, 45), (40, 73), (10, 40), (10, 26), (13, 73), (19, 51), (19, 56), (26, 56)] adding cut for [(32, 66), (39, 59), (8, 54), (11, 32), (11, 39), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] Optimize a model with 259 rows, 2850 columns and 63801 nonzeros Presolve time: 0.05s Presolved: 259 rows, 2850 columns, 63801 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 803.0000000 779.29377 2.95% - 0s H 0 0 795.0000000 779.29377 1.98% - 0s 0 0 779.30552 0 87 795.00000 779.30552 1.97% - 0s 0 0 779.30552 0 86 795.00000 779.30552 1.97% - 0s 0 0 779.73055 0 83 795.00000 779.73055 1.92% - 0s 0 0 779.92500 0 86 795.00000 779.92500 1.90% - 0s 0 0 779.99762 0 87 795.00000 779.99762 1.89% - 0s 0 0 780.01055 0 89 795.00000 780.01055 1.89% - 0s 0 0 780.07156 0 95 795.00000 780.07156 1.88% - 0s 0 0 780.08697 0 98 795.00000 780.08697 1.88% - 0s 0 0 780.09947 0 97 795.00000 780.09947 1.87% - 0s 0 0 780.10412 0 99 795.00000 780.10412 1.87% - 0s 0 0 780.11476 0 97 795.00000 780.11476 1.87% - 0s 0 0 780.13796 0 101 795.00000 780.13796 1.87% - 0s 0 0 780.18316 0 96 795.00000 780.18316 1.86% - 0s 0 0 780.18861 0 103 795.00000 780.18861 1.86% - 0s 0 0 780.18861 0 105 795.00000 780.18861 1.86% - 0s 0 2 780.18887 0 105 795.00000 780.18887 1.86% - 0s * 361 246 44 791.0000000 780.49500 1.33% 15.8 1s * 465 216 37 788.0000000 780.70066 0.93% 15.6 1s * 468 174 38 787.0000000 780.70066 0.80% 15.6 1s 2067 388 783.94545 19 79 787.00000 783.57895 0.43% 14.9 5s * 2133 293 26 786.0000000 783.65333 0.30% 15.0 5s Cutting planes: Gomory: 5 MIR: 3 Zero half: 12 Explored 2825 nodes (39774 simplex iterations) in 5.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(8, 12), (12, 54), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (34, 74), (37, 48), (37, 70), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(2, 44), (2, 64), (9, 36), (11, 32), (11, 39), (15, 36), (15, 60), (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), (60, 67), (66, 67)] Optimize a model with 261 rows, 2850 columns and 64377 nonzeros Presolve time: 0.06s Presolved: 261 rows, 2850 columns, 64377 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 792.0000000 779.29377 1.60% - 0s 0 0 779.30552 0 87 792.00000 779.30552 1.60% - 0s 0 0 779.30552 0 86 792.00000 779.30552 1.60% - 0s 0 0 779.73055 0 85 792.00000 779.73055 1.55% - 0s 0 0 779.92500 0 86 792.00000 779.92500 1.52% - 0s 0 0 779.99762 0 89 792.00000 779.99762 1.52% - 0s 0 0 780.02282 0 94 792.00000 780.02282 1.51% - 0s 0 0 780.08166 0 95 792.00000 780.08166 1.50% - 0s 0 0 780.11297 0 96 792.00000 780.11297 1.50% - 0s 0 0 780.12956 0 99 792.00000 780.12956 1.50% - 0s 0 0 780.13130 0 100 792.00000 780.13130 1.50% - 0s 0 0 780.14321 0 99 792.00000 780.14321 1.50% - 0s 0 0 780.14855 0 99 792.00000 780.14855 1.50% - 0s 0 0 780.15693 0 98 792.00000 780.15693 1.50% - 0s 0 0 780.15967 0 97 792.00000 780.15967 1.49% - 0s 0 0 780.16079 0 103 792.00000 780.16079 1.49% - 0s 0 0 780.16534 0 101 792.00000 780.16534 1.49% - 0s 0 0 780.16534 0 101 792.00000 780.16534 1.49% - 0s 0 2 780.16948 0 101 792.00000 780.16948 1.49% - 0s H 27 27 790.0000000 780.37482 1.22% 21.4 1s * 78 59 48 789.0000000 780.37482 1.09% 16.1 1s H 137 94 788.0000000 780.43847 0.96% 15.2 1s H 169 96 787.0000000 780.45960 0.83% 15.3 1s * 2910 322 31 786.0000000 783.92000 0.26% 13.5 4s Explored 3483 nodes (44899 simplex iterations) in 4.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 59), (12, 66), (12, 67), (14, 28), (14, 55), (15, 36), (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, 51), (26, 56), (28, 58), (32, 56), (37, 48), (37, 70), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (53, 55), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 262 rows, 2850 columns and 65197 nonzeros Presolve time: 0.06s Presolved: 262 rows, 2850 columns, 65197 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.29377 1.98% - 0s 0 0 779.30552 0 88 795.00000 779.30552 1.97% - 0s 0 0 779.30552 0 86 795.00000 779.30552 1.97% - 0s 0 0 779.73055 0 83 795.00000 779.73055 1.92% - 0s 0 0 779.92500 0 86 795.00000 779.92500 1.90% - 0s 0 0 779.99762 0 87 795.00000 779.99762 1.89% - 0s 0 0 780.01055 0 89 795.00000 780.01055 1.89% - 0s 0 0 780.07156 0 95 795.00000 780.07156 1.88% - 0s 0 0 780.08697 0 98 795.00000 780.08697 1.88% - 0s 0 0 780.09947 0 97 795.00000 780.09947 1.87% - 0s 0 0 780.10412 0 99 795.00000 780.10412 1.87% - 0s 0 0 780.11476 0 97 795.00000 780.11476 1.87% - 0s 0 0 780.13796 0 101 795.00000 780.13796 1.87% - 0s 0 0 780.18021 0 96 795.00000 780.18021 1.86% - 0s 0 0 780.22533 0 98 795.00000 780.22533 1.86% - 0s 0 0 780.23648 0 98 795.00000 780.23648 1.86% - 0s 0 0 780.25083 0 100 795.00000 780.25083 1.86% - 0s 0 2 780.26779 0 100 795.00000 780.26779 1.85% - 0s * 76 74 44 793.0000000 780.70901 1.55% 22.7 1s * 83 67 48 790.0000000 780.70901 1.18% 21.6 1s H 196 131 789.0000000 781.22636 0.99% 18.4 1s * 212 129 29 788.0000000 781.22636 0.86% 17.5 1s * 299 139 11 787.0000000 781.49507 0.70% 17.8 1s * 2274 298 31 786.0000000 783.78261 0.28% 14.7 4s 2579 211 785.00000 26 59 786.00000 784.22222 0.23% 14.2 5s Cutting planes: Gomory: 4 MIR: 3 Zero half: 5 Explored 2890 nodes (39566 simplex iterations) in 5.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.860000000000e+02, best bound 7.860000000000e+02, gap 0.0% adding cut for [(32, 56), (3, 63), (40, 73), (42, 44), (42, 57), (43, 65), (43, 44), (13, 73), (19, 51), (19, 25), (25, 50), (23, 65), (23, 63), (24, 50), (24, 57), (26, 51), (26, 56), (10, 32), (10, 40)] adding cut for [(6, 38), (6, 49), (29, 75), (29, 62), (37, 48), (37, 70), (21, 38), (21, 71), (22, 48), (22, 62), (70, 72), (61, 71), (61, 72), (31, 49)] adding cut for [(66, 67), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 67), (12, 60), (15, 36), (15, 60)] Optimize a model with 265 rows, 2850 columns and 65547 nonzeros Presolve time: 0.06s Presolved: 265 rows, 2850 columns, 65547 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.29377 1.23% - 0s 0 0 779.30552 0 88 789.00000 779.30552 1.23% - 0s 0 0 779.30552 0 86 789.00000 779.30552 1.23% - 0s 0 0 779.73055 0 83 789.00000 779.73055 1.17% - 0s 0 0 779.92596 0 86 789.00000 779.92596 1.15% - 0s 0 0 779.94309 0 91 789.00000 779.94309 1.15% - 0s 0 0 780.03828 0 95 789.00000 780.03828 1.14% - 0s 0 0 780.04793 0 95 789.00000 780.04793 1.13% - 0s 0 0 780.04793 0 97 789.00000 780.04793 1.13% - 0s 0 0 780.10155 0 96 789.00000 780.10155 1.13% - 0s 0 0 780.10454 0 99 789.00000 780.10454 1.13% - 0s 0 0 780.11236 0 98 789.00000 780.11236 1.13% - 0s 0 0 780.11770 0 100 789.00000 780.11770 1.13% - 0s 0 0 780.12573 0 95 789.00000 780.12573 1.12% - 0s 0 0 780.13058 0 97 789.00000 780.13058 1.12% - 0s 0 0 780.13148 0 100 789.00000 780.13148 1.12% - 0s 0 0 780.16789 0 97 789.00000 780.16789 1.12% - 0s 0 0 780.18865 0 102 789.00000 780.18865 1.12% - 0s 0 0 780.20784 0 101 789.00000 780.20784 1.11% - 0s 0 0 780.20886 0 101 789.00000 780.20886 1.11% - 0s 0 0 780.21981 0 103 789.00000 780.21981 1.11% - 0s 0 0 780.22294 0 104 789.00000 780.22294 1.11% - 0s 0 0 780.23451 0 103 789.00000 780.23451 1.11% - 0s 0 0 780.24796 0 103 789.00000 780.24796 1.11% - 0s 0 0 780.24804 0 104 789.00000 780.24804 1.11% - 0s 0 0 780.25905 0 98 789.00000 780.25905 1.11% - 0s 0 0 780.26055 0 99 789.00000 780.26055 1.11% - 0s 0 0 780.26594 0 99 789.00000 780.26594 1.11% - 0s 0 0 780.26619 0 101 789.00000 780.26619 1.11% - 0s 0 0 780.27221 0 101 789.00000 780.27221 1.11% - 0s 0 0 780.27433 0 103 789.00000 780.27433 1.11% - 0s 0 0 780.27572 0 106 789.00000 780.27572 1.11% - 1s 0 0 780.27572 0 106 789.00000 780.27572 1.11% - 1s 0 2 780.28340 0 106 789.00000 780.28340 1.10% - 1s H 668 429 788.0000000 781.77358 0.79% 15.2 3s * 676 399 43 787.0000000 781.77358 0.66% 15.1 3s 1730 425 785.84000 27 54 787.00000 783.04237 0.50% 14.1 5s 5826 350 785.23529 30 73 787.00000 784.91304 0.27% 12.7 10s Cutting planes: Gomory: 12 MIR: 3 Zero half: 21 Explored 6610 nodes (81864 simplex iterations) in 10.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (4, 25), (4, 45), (9, 36), (10, 26), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (19, 51), (19, 56), (24, 50), (24, 57), (25, 50), (26, 56), (32, 40), (33, 45), (33, 51), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (63, 74)] adding cut for [(6, 30), (6, 49), (8, 54), (14, 55), (14, 58), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 29), (23, 62), (29, 75), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72), (62, 70)] Optimize a model with 267 rows, 2850 columns and 66265 nonzeros Presolve time: 0.06s Presolved: 267 rows, 2850 columns, 66265 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 235 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.29377 2.47% - 0s 0 0 779.30552 0 88 799.00000 779.30552 2.46% - 0s 0 0 779.30552 0 86 799.00000 779.30552 2.46% - 0s 0 0 779.73055 0 83 799.00000 779.73055 2.41% - 0s 0 0 779.92500 0 86 799.00000 779.92500 2.39% - 0s 0 0 779.97699 0 91 799.00000 779.97699 2.38% - 0s 0 0 780.01055 0 89 799.00000 780.01055 2.38% - 0s 0 0 780.07156 0 95 799.00000 780.07156 2.37% - 0s 0 0 780.08450 0 102 799.00000 780.08450 2.37% - 0s 0 0 780.11713 0 91 799.00000 780.11713 2.36% - 0s 0 0 780.11713 0 94 799.00000 780.11713 2.36% - 0s 0 0 780.12527 0 94 799.00000 780.12527 2.36% - 0s 0 0 780.13144 0 96 799.00000 780.13144 2.36% - 0s 0 0 780.13175 0 100 799.00000 780.13175 2.36% - 0s 0 0 780.13787 0 98 799.00000 780.13787 2.36% - 0s 0 0 780.14441 0 101 799.00000 780.14441 2.36% - 1s 0 0 780.14963 0 101 799.00000 780.14963 2.36% - 1s 0 0 780.16475 0 100 799.00000 780.16475 2.36% - 1s 0 0 780.17549 0 100 799.00000 780.17549 2.36% - 1s 0 0 780.17802 0 101 799.00000 780.17802 2.36% - 1s 0 0 780.17802 0 101 799.00000 780.17802 2.36% - 1s 0 2 780.19446 0 101 799.00000 780.19446 2.35% - 1s H 27 27 793.0000000 780.86446 1.53% 23.6 1s * 68 58 41 792.0000000 780.86446 1.41% 18.4 1s * 265 218 41 791.0000000 781.05965 1.26% 15.2 1s * 334 250 35 790.0000000 781.09494 1.13% 15.1 1s * 499 199 25 787.0000000 781.38523 0.71% 14.4 1s 2182 550 783.70451 25 76 787.00000 783.63757 0.43% 14.8 5s Cutting planes: Gomory: 9 MIR: 3 Zero half: 2 Explored 6394 nodes (80392 simplex iterations) in 9.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 54), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (29, 62), (29, 75), (32, 40), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 268 rows, 2850 columns and 67006 nonzeros Presolve time: 0.06s Presolved: 268 rows, 2850 columns, 67006 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 233 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.29377 2.47% - 0s 0 0 779.30552 0 88 799.00000 779.30552 2.46% - 0s 0 0 779.30552 0 86 799.00000 779.30552 2.46% - 0s 0 0 779.73055 0 83 799.00000 779.73055 2.41% - 0s 0 0 779.92500 0 86 799.00000 779.92500 2.39% - 0s 0 0 779.97699 0 91 799.00000 779.97699 2.38% - 0s 0 0 780.01055 0 89 799.00000 780.01055 2.38% - 0s 0 0 780.07156 0 95 799.00000 780.07156 2.37% - 0s 0 0 780.08450 0 101 799.00000 780.08450 2.37% - 0s 0 0 780.11713 0 91 799.00000 780.11713 2.36% - 0s 0 0 780.11713 0 93 799.00000 780.11713 2.36% - 0s 0 0 780.12527 0 93 799.00000 780.12527 2.36% - 0s 0 0 780.13144 0 96 799.00000 780.13144 2.36% - 0s 0 0 780.13175 0 100 799.00000 780.13175 2.36% - 1s 0 0 780.13787 0 98 799.00000 780.13787 2.36% - 1s 0 0 780.14441 0 101 799.00000 780.14441 2.36% - 1s 0 0 780.14963 0 101 799.00000 780.14963 2.36% - 1s 0 0 780.16475 0 100 799.00000 780.16475 2.36% - 1s 0 0 780.17549 0 100 799.00000 780.17549 2.36% - 1s 0 0 780.17802 0 100 799.00000 780.17802 2.36% - 1s 0 0 780.17802 0 101 799.00000 780.17802 2.36% - 1s 0 0 780.17802 0 101 799.00000 780.17802 2.36% - 1s 0 2 780.19446 0 101 799.00000 780.19446 2.35% - 1s * 60 58 38 790.0000000 780.86446 1.16% 22.1 1s * 107 85 32 789.0000000 780.93261 1.02% 18.3 1s * 397 231 27 788.0000000 781.40994 0.84% 15.3 1s H 467 218 787.0000000 781.72222 0.67% 15.5 1s 2798 631 cutoff 26 787.00000 783.96203 0.39% 14.1 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Explored 5960 nodes (75975 simplex iterations) in 8.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 58), (16, 38), (16, 58), (17, 50), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (30, 46), (34, 64), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (4, 41), (4, 45), (33, 51), (33, 45), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (8, 54), (19, 51), (19, 56), (39, 66), (26, 56)] Optimize a model with 270 rows, 2850 columns and 67612 nonzeros Presolve time: 0.06s Presolved: 270 rows, 2850 columns, 67612 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.29377 2.47% - 0s 0 0 779.30552 0 87 799.00000 779.30552 2.46% - 0s 0 0 779.30552 0 86 799.00000 779.30552 2.46% - 0s 0 0 779.73055 0 83 799.00000 779.73055 2.41% - 0s 0 0 779.92500 0 85 799.00000 779.92500 2.39% - 0s 0 0 779.97699 0 90 799.00000 779.97699 2.38% - 0s 0 0 780.01055 0 89 799.00000 780.01055 2.38% - 0s 0 0 780.07156 0 95 799.00000 780.07156 2.37% - 0s 0 0 780.08450 0 101 799.00000 780.08450 2.37% - 0s 0 0 780.11713 0 92 799.00000 780.11713 2.36% - 0s 0 0 780.12527 0 94 799.00000 780.12527 2.36% - 0s 0 0 780.13344 0 97 799.00000 780.13344 2.36% - 0s 0 0 780.14478 0 100 799.00000 780.14478 2.36% - 0s 0 0 780.14729 0 103 799.00000 780.14729 2.36% - 0s 0 0 780.14729 0 103 799.00000 780.14729 2.36% - 0s 0 2 780.15000 0 103 799.00000 780.15000 2.36% - 1s * 260 171 40 791.0000000 780.74381 1.30% 17.3 1s * 408 265 26 790.0000000 780.98811 1.14% 17.7 1s * 413 235 28 789.0000000 780.98811 1.02% 17.5 1s * 427 214 19 788.0000000 781.04126 0.88% 17.7 1s H 641 289 787.0000000 781.35756 0.72% 17.9 3s 1580 364 785.45968 22 66 787.00000 783.17949 0.49% 15.8 5s Cutting planes: Gomory: 9 MIR: 7 Zero half: 14 Explored 5214 nodes (70623 simplex iterations) in 9.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (8, 15), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (15, 60), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (60, 67)] adding cut for [(16, 58), (16, 38), (9, 36), (9, 47), (36, 54), (37, 48), (37, 70), (6, 49), (6, 30), (14, 55), (14, 58), (20, 54), (20, 55), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72)] adding cut for [(2, 64), (2, 74), (3, 63), (43, 65), (43, 44), (29, 75), (29, 62), (23, 65), (23, 62), (24, 64), (24, 57), (31, 75), (42, 44), (42, 57), (63, 74)] Optimize a model with 273 rows, 2850 columns and 68195 nonzeros Presolve time: 0.06s Presolved: 273 rows, 2850 columns, 68195 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.29377 1.98% - 0s 0 0 779.30552 0 87 795.00000 779.30552 1.97% - 0s 0 0 779.30552 0 86 795.00000 779.30552 1.97% - 0s 0 0 779.73055 0 83 795.00000 779.73055 1.92% - 0s 0 0 779.92500 0 86 795.00000 779.92500 1.90% - 0s 0 0 779.99762 0 87 795.00000 779.99762 1.89% - 0s 0 0 780.01055 0 89 795.00000 780.01055 1.89% - 0s 0 0 780.06773 0 96 795.00000 780.06773 1.88% - 0s 0 0 780.14669 0 93 795.00000 780.14669 1.87% - 0s 0 0 780.14669 0 94 795.00000 780.14669 1.87% - 0s 0 0 780.15237 0 95 795.00000 780.15237 1.87% - 0s 0 0 780.15292 0 94 795.00000 780.15292 1.87% - 0s 0 0 780.16195 0 94 795.00000 780.16195 1.87% - 0s 0 0 780.16623 0 93 795.00000 780.16623 1.87% - 0s 0 0 780.16672 0 97 795.00000 780.16672 1.87% - 0s 0 2 780.16723 0 97 795.00000 780.16723 1.87% - 1s * 43 34 34 789.0000000 780.74774 1.05% 16.4 1s * 129 78 37 788.0000000 781.00645 0.89% 14.5 1s * 329 137 15 787.0000000 781.74311 0.67% 14.7 1s 2653 400 785.28627 22 83 787.00000 784.16720 0.36% 14.1 5s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 4608 nodes (59766 simplex iterations) in 6.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 41), (4, 45), (6, 16), (6, 38), (12, 54), (13, 41), (14, 28), (14, 55), (16, 58), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 50), (24, 57), (25, 50), (28, 58), (29, 62), (29, 75), (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), (39, 66), (40, 73), (9, 36), (9, 47), (10, 40), (10, 26), (11, 32), (11, 39), (15, 36), (15, 60), (59, 73), (26, 56), (60, 67)] Optimize a model with 275 rows, 2850 columns and 69018 nonzeros Presolve time: 0.06s Presolved: 275 rows, 2850 columns, 69018 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.29377 1.98% - 0s 0 0 779.30552 0 88 795.00000 779.30552 1.97% - 0s 0 0 779.30552 0 86 795.00000 779.30552 1.97% - 0s 0 0 779.73055 0 83 795.00000 779.73055 1.92% - 0s 0 0 779.92500 0 86 795.00000 779.92500 1.90% - 0s 0 0 779.99762 0 87 795.00000 779.99762 1.89% - 0s 0 0 780.01055 0 89 795.00000 780.01055 1.89% - 0s 0 0 780.06773 0 96 795.00000 780.06773 1.88% - 0s 0 0 780.14669 0 93 795.00000 780.14669 1.87% - 0s 0 0 780.14669 0 94 795.00000 780.14669 1.87% - 0s 0 0 780.15237 0 95 795.00000 780.15237 1.87% - 0s 0 0 780.15255 0 95 795.00000 780.15255 1.87% - 0s 0 0 780.16195 0 94 795.00000 780.16195 1.87% - 0s 0 0 780.16742 0 93 795.00000 780.16742 1.87% - 0s 0 0 780.16933 0 95 795.00000 780.16933 1.87% - 0s 0 0 780.17185 0 100 795.00000 780.17185 1.87% - 0s 0 0 780.17185 0 101 795.00000 780.17185 1.87% - 0s 0 0 780.17185 0 101 795.00000 780.17185 1.87% - 0s 0 2 780.17432 0 100 795.00000 780.17432 1.86% - 1s H 96 81 793.0000000 780.48062 1.58% 17.1 1s * 137 109 43 790.0000000 780.48062 1.20% 15.3 1s H 600 410 789.0000000 781.65599 0.93% 14.2 2s * 741 444 45 788.0000000 781.65599 0.81% 15.7 3s H 1157 456 787.0000000 782.47059 0.58% 15.5 4s 1609 416 783.77885 22 81 787.00000 783.06250 0.50% 15.4 5s Cutting planes: Gomory: 8 MIR: 3 Zero half: 16 Explored 4669 nodes (64609 simplex iterations) in 8.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 39), (11, 59), (12, 60), (12, 67), (13, 73), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (17, 52), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 58), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(32, 40), (33, 51), (33, 45), (4, 45), (10, 40), (10, 41), (19, 51), (19, 56), (26, 32), (26, 56)] Optimize a model with 277 rows, 2850 columns and 69814 nonzeros Presolve time: 0.06s Presolved: 277 rows, 2850 columns, 69814 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.792938e+02, 255 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.29377 0 86 2525.00000 779.29377 69.1% - 0s Another try with MIP start H 0 0 793.0000000 779.29377 1.73% - 0s 0 0 779.30552 0 88 793.00000 779.30552 1.73% - 0s 0 0 779.30552 0 86 793.00000 779.30552 1.73% - 0s 0 0 779.72541 0 85 793.00000 779.72541 1.67% - 0s 0 0 779.92500 0 86 793.00000 779.92500 1.65% - 0s 0 0 779.99762 0 87 793.00000 779.99762 1.64% - 0s 0 0 780.01406 0 89 793.00000 780.01406 1.64% - 0s 0 0 780.08177 0 96 793.00000 780.08177 1.63% - 0s 0 0 780.10554 0 93 793.00000 780.10554 1.63% - 0s 0 0 780.14389 0 92 793.00000 780.14389 1.62% - 0s 0 0 780.15065 0 94 793.00000 780.15065 1.62% - 0s 0 0 780.17405 0 100 793.00000 780.17405 1.62% - 0s 0 0 780.18506 0 101 793.00000 780.18506 1.62% - 0s 0 0 780.20385 0 99 793.00000 780.20385 1.61% - 0s 0 0 780.20479 0 96 793.00000 780.20479 1.61% - 0s 0 0 780.20479 0 99 793.00000 780.20479 1.61% - 0s 0 0 780.21730 0 94 793.00000 780.21730 1.61% - 0s 0 0 780.21941 0 101 793.00000 780.21941 1.61% - 0s 0 0 780.21947 0 103 793.00000 780.21947 1.61% - 0s 0 2 780.22084 0 103 793.00000 780.22084 1.61% - 1s * 75 73 48 792.0000000 780.45689 1.46% 16.7 1s * 147 112 49 791.0000000 780.54172 1.32% 15.4 1s * 418 312 45 790.0000000 780.99479 1.14% 14.6 1s H 725 421 788.0000000 781.61589 0.81% 15.7 4s * 773 385 35 787.0000000 781.78125 0.66% 15.9 4s 912 412 783.48374 16 103 787.00000 782.11255 0.62% 15.2 5s 4990 878 785.88000 33 72 787.00000 784.32692 0.34% 13.8 10s Cutting planes: Gomory: 7 MIR: 3 Zero half: 6 Explored 7956 nodes (102734 simplex iterations) in 12.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (39, 66), (40, 73), (59, 73), (60, 67)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (28, 53), (14, 28), (14, 58), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (17, 52), (23, 65), (23, 62), (24, 64), (24, 57), (29, 75), (29, 62), (31, 75)] Optimize a model with 280 rows, 2850 columns and 70272 nonzeros Presolve time: 0.06s Presolved: 280 rows, 2850 columns, 70272 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 279 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.33235 2.46% - 0s 0 0 779.34468 0 91 799.00000 779.34468 2.46% - 0s 0 0 779.34468 0 87 799.00000 779.34468 2.46% - 0s 0 0 779.69691 0 86 799.00000 779.69691 2.42% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.09303 0 92 799.00000 780.09303 2.37% - 0s 0 0 780.11581 0 99 799.00000 780.11581 2.36% - 0s 0 0 780.12679 0 96 799.00000 780.12679 2.36% - 0s 0 0 780.13911 0 100 799.00000 780.13911 2.36% - 0s 0 0 780.18206 0 99 799.00000 780.18206 2.36% - 1s 0 0 780.20177 0 101 799.00000 780.20177 2.35% - 1s 0 0 780.28329 0 95 799.00000 780.28329 2.34% - 1s 0 0 780.28374 0 100 799.00000 780.28374 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 2 780.29254 0 101 799.00000 780.29254 2.34% - 1s * 99 89 56 796.0000000 780.60986 1.93% 20.4 1s * 141 85 31 789.0000000 780.61264 1.06% 19.6 1s * 171 88 23 788.0000000 780.62383 0.94% 19.4 1s * 767 331 41 787.0000000 781.90099 0.65% 18.0 3s 1590 319 785.24242 29 71 787.00000 783.32500 0.47% 16.4 5s Cutting planes: Gomory: 12 MIR: 3 Zero half: 18 Explored 4315 nodes (61645 simplex iterations) in 8.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (10, 33), (10, 40), (13, 40), (13, 73), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (31, 75), (32, 56), (32, 73), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(6, 16), (6, 38), (9, 20), (9, 53), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (21, 38), (21, 71), (22, 48), (22, 70), (28, 58), (30, 46), (30, 49), (37, 70), (37, 72), (48, 49), (55, 60), (61, 71), (61, 72)] adding cut for [(66, 67), (36, 54), (39, 66), (8, 36), (11, 39), (11, 59), (12, 67), (12, 54)] Optimize a model with 283 rows, 2850 columns and 70886 nonzeros Presolve time: 0.06s Presolved: 283 rows, 2850 columns, 70886 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.33235 1.97% - 0s 0 0 779.34468 0 91 795.00000 779.34468 1.97% - 0s 0 0 779.34468 0 87 795.00000 779.34468 1.97% - 0s 0 0 779.69691 0 88 795.00000 779.69691 1.92% - 0s 0 0 780.07014 0 88 795.00000 780.07014 1.88% - 0s 0 0 780.09303 0 92 795.00000 780.09303 1.88% - 0s 0 0 780.11621 0 95 795.00000 780.11621 1.87% - 0s 0 0 780.16180 0 101 795.00000 780.16180 1.87% - 0s 0 0 780.16442 0 101 795.00000 780.16442 1.87% - 0s 0 0 780.21543 0 97 795.00000 780.21543 1.86% - 0s 0 0 780.23924 0 102 795.00000 780.23924 1.86% - 0s 0 0 780.25286 0 103 795.00000 780.25286 1.85% - 0s 0 0 780.27622 0 101 795.00000 780.27622 1.85% - 0s 0 0 780.27622 0 104 795.00000 780.27622 1.85% - 0s 0 0 780.28275 0 101 795.00000 780.28275 1.85% - 0s 0 0 780.28315 0 103 795.00000 780.28315 1.85% - 0s 0 0 780.28315 0 103 795.00000 780.28315 1.85% - 0s 0 0 780.28315 0 103 795.00000 780.28315 1.85% - 0s 0 2 780.28447 0 103 795.00000 780.28447 1.85% - 1s * 388 296 43 792.0000000 780.82209 1.41% 14.2 1s * 429 237 27 789.0000000 780.82458 1.04% 14.6 1s H 600 264 788.0000000 781.25899 0.86% 14.9 2s * 892 311 27 787.0000000 781.95977 0.64% 15.8 3s 1593 385 785.38028 21 73 787.00000 783.00804 0.51% 15.2 5s 5327 255 cutoff 20 787.00000 784.96429 0.26% 14.1 10s Cutting planes: Gomory: 10 MIR: 8 Zero half: 15 Explored 5819 nodes (80362 simplex iterations) in 10.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 15), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (31, 75), (32, 56), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (60, 67)] adding cut for [(6, 30), (6, 49), (9, 36), (9, 53), (14, 28), (14, 55), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (28, 58), (35, 53), (36, 54), (37, 48), (37, 70), (48, 49), (61, 71), (61, 72), (70, 72)] Optimize a model with 285 rows, 2850 columns and 71523 nonzeros Presolve time: 0.06s Presolved: 285 rows, 2850 columns, 71523 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 791.0000000 779.33235 1.48% - 0s 0 0 779.52494 0 85 791.00000 779.52494 1.45% - 0s 0 0 779.52494 0 87 791.00000 779.52494 1.45% - 0s 0 0 779.69691 0 88 791.00000 779.69691 1.43% - 0s 0 0 780.07014 0 88 791.00000 780.07014 1.38% - 0s 0 0 780.09303 0 92 791.00000 780.09303 1.38% - 0s 0 0 780.11312 0 99 791.00000 780.11312 1.38% - 0s 0 0 780.15119 0 93 791.00000 780.15119 1.37% - 0s 0 0 780.15800 0 100 791.00000 780.15800 1.37% - 0s 0 0 780.18348 0 98 791.00000 780.18348 1.37% - 0s 0 0 780.19587 0 103 791.00000 780.19587 1.37% - 0s 0 0 780.21140 0 102 791.00000 780.21140 1.36% - 0s 0 0 780.21760 0 102 791.00000 780.21760 1.36% - 0s 0 0 780.25487 0 105 791.00000 780.25487 1.36% - 0s 0 0 780.27849 0 102 791.00000 780.27849 1.36% - 0s 0 0 780.27849 0 104 791.00000 780.27849 1.36% - 0s 0 0 780.27849 0 102 791.00000 780.27849 1.36% - 0s 0 2 780.32433 0 102 791.00000 780.32433 1.35% - 0s * 175 136 33 790.0000000 780.54040 1.20% 16.9 1s H 642 433 789.0000000 781.53227 0.95% 17.0 2s * 686 420 43 788.0000000 781.53227 0.82% 17.0 2s * 1475 508 27 787.0000000 782.65000 0.55% 17.0 4s 1603 514 784.53538 21 87 787.00000 782.85855 0.53% 16.9 5s 4887 642 785.50000 37 56 787.00000 784.43056 0.33% 14.9 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 7 Explored 6726 nodes (94874 simplex iterations) in 11.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (4, 17), (4, 45), (6, 38), (6, 49), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 45), (25, 50), (29, 63), (29, 75), (34, 74), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (39, 66), (9, 36), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (59, 73), (60, 67)] Optimize a model with 287 rows, 2850 columns and 72097 nonzeros Presolve time: 0.06s Presolved: 287 rows, 2850 columns, 72097 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 791.0000000 779.33235 1.48% - 0s 0 0 779.52494 0 85 791.00000 779.52494 1.45% - 0s 0 0 779.52494 0 87 791.00000 779.52494 1.45% - 0s 0 0 779.69691 0 88 791.00000 779.69691 1.43% - 0s 0 0 780.07014 0 88 791.00000 780.07014 1.38% - 0s 0 0 780.09303 0 92 791.00000 780.09303 1.38% - 0s 0 0 780.11312 0 99 791.00000 780.11312 1.38% - 0s 0 0 780.15119 0 93 791.00000 780.15119 1.37% - 0s 0 0 780.15800 0 100 791.00000 780.15800 1.37% - 0s 0 0 780.18348 0 98 791.00000 780.18348 1.37% - 0s 0 0 780.19587 0 103 791.00000 780.19587 1.37% - 0s 0 0 780.21140 0 102 791.00000 780.21140 1.36% - 0s 0 0 780.21760 0 102 791.00000 780.21760 1.36% - 0s 0 0 780.25487 0 105 791.00000 780.25487 1.36% - 0s 0 0 780.27849 0 102 791.00000 780.27849 1.36% - 0s 0 0 780.27849 0 104 791.00000 780.27849 1.36% - 0s 0 0 780.27849 0 102 791.00000 780.27849 1.36% - 0s 0 2 780.32433 0 102 791.00000 780.32433 1.35% - 0s * 167 122 38 789.0000000 780.54040 1.07% 17.3 1s H 572 249 787.0000000 781.66703 0.68% 15.9 1s 2251 489 783.80163 24 72 787.00000 783.48944 0.45% 16.2 5s Cutting planes: Gomory: 6 MIR: 3 Zero half: 7 Explored 6488 nodes (92164 simplex iterations) in 9.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 25), (4, 45), (11, 32), (11, 39), (12, 54), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 54), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (33, 45), (33, 51), (37, 70), (37, 72), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (55, 60), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(34, 74), (6, 49), (6, 30), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (63, 74)] Optimize a model with 289 rows, 2850 columns and 72922 nonzeros Presolve time: 0.06s Presolved: 289 rows, 2850 columns, 72922 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.33235 2.46% - 0s 0 0 779.52494 0 85 799.00000 779.52494 2.44% - 0s 0 0 779.52494 0 87 799.00000 779.52494 2.44% - 0s 0 0 779.69691 0 86 799.00000 779.69691 2.42% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.09303 0 92 799.00000 780.09303 2.37% - 0s 0 0 780.11581 0 99 799.00000 780.11581 2.36% - 0s 0 0 780.12679 0 96 799.00000 780.12679 2.36% - 0s 0 0 780.13903 0 100 799.00000 780.13903 2.36% - 0s 0 0 780.18206 0 99 799.00000 780.18206 2.36% - 0s 0 0 780.20177 0 101 799.00000 780.20177 2.35% - 0s 0 0 780.28329 0 95 799.00000 780.28329 2.34% - 0s 0 0 780.28374 0 100 799.00000 780.28374 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 2 780.29254 0 101 799.00000 780.29254 2.34% - 1s * 80 72 46 792.0000000 780.60986 1.44% 22.2 1s H 128 89 790.0000000 780.61264 1.19% 20.0 1s * 160 107 27 789.0000000 780.63518 1.06% 18.9 1s * 364 197 25 788.0000000 781.11707 0.87% 17.2 1s 1795 641 785.59091 25 79 788.00000 782.82707 0.66% 16.6 5s * 2339 732 27 787.0000000 783.22123 0.48% 16.3 5s 5613 815 785.95833 25 66 787.00000 784.40094 0.33% 15.2 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 8 Explored 7868 nodes (113656 simplex iterations) in 12.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (6, 16), (6, 38), (16, 58), (17, 50), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 25), (24, 57), (25, 50), (29, 63), (29, 75), (30, 46), (30, 58), (31, 49), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(33, 51), (33, 45), (66, 67), (4, 45), (39, 66), (9, 47), (9, 20), (11, 32), (11, 39), (12, 67), (12, 54), (19, 51), (19, 56), (20, 54), (26, 32), (26, 56)] Optimize a model with 291 rows, 2850 columns and 73586 nonzeros Presolve time: 0.06s Presolved: 291 rows, 2850 columns, 73586 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.33235 2.46% - 0s 0 0 779.52494 0 85 799.00000 779.52494 2.44% - 0s 0 0 779.52494 0 87 799.00000 779.52494 2.44% - 0s 0 0 779.69691 0 86 799.00000 779.69691 2.42% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.09303 0 92 799.00000 780.09303 2.37% - 0s 0 0 780.11581 0 99 799.00000 780.11581 2.36% - 0s 0 0 780.12679 0 96 799.00000 780.12679 2.36% - 0s 0 0 780.13903 0 100 799.00000 780.13903 2.36% - 0s 0 0 780.18206 0 99 799.00000 780.18206 2.36% - 0s 0 0 780.20177 0 101 799.00000 780.20177 2.35% - 0s 0 0 780.28329 0 95 799.00000 780.28329 2.34% - 0s 0 0 780.28374 0 100 799.00000 780.28374 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 0 780.28381 0 101 799.00000 780.28381 2.34% - 1s 0 2 780.29254 0 101 799.00000 780.29254 2.34% - 1s * 66 66 40 794.0000000 780.60986 1.69% 23.0 1s H 80 54 791.0000000 780.61264 1.31% 21.3 1s H 544 317 789.0000000 781.27997 0.98% 16.7 2s H 794 409 788.0000000 781.59385 0.81% 17.5 3s * 1218 423 33 787.0000000 782.53981 0.57% 16.5 4s 1510 417 784.31080 24 82 787.00000 783.00000 0.51% 16.1 5s Cutting planes: Gomory: 6 MIR: 2 Zero half: 4 Explored 4867 nodes (68882 simplex iterations) in 8.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(4, 17), (4, 45), (6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 66), (13, 40), (13, 73), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (17, 52), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (33, 45), (37, 70), (37, 72), (39, 59), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 64), (2, 74), (34, 64), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 49), (63, 74)] Optimize a model with 293 rows, 2850 columns and 74722 nonzeros Presolve time: 0.06s Presolved: 293 rows, 2850 columns, 74722 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 802.0000000 779.33235 2.83% - 0s H 0 0 799.0000000 779.33235 2.46% - 0s 0 0 779.52494 0 85 799.00000 779.52494 2.44% - 0s 0 0 779.52494 0 87 799.00000 779.52494 2.44% - 0s 0 0 779.69691 0 86 799.00000 779.69691 2.42% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.07014 0 88 799.00000 780.07014 2.37% - 0s 0 0 780.09303 0 92 799.00000 780.09303 2.37% - 0s 0 0 780.11581 0 99 799.00000 780.11581 2.36% - 0s 0 0 780.12679 0 96 799.00000 780.12679 2.36% - 0s 0 0 780.13903 0 100 799.00000 780.13903 2.36% - 0s 0 0 780.18206 0 99 799.00000 780.18206 2.36% - 0s 0 0 780.20177 0 101 799.00000 780.20177 2.35% - 1s 0 0 780.28329 0 98 799.00000 780.28329 2.34% - 1s 0 0 780.28643 0 100 799.00000 780.28643 2.34% - 1s 0 0 780.31090 0 99 799.00000 780.31090 2.34% - 1s 0 0 780.31489 0 104 799.00000 780.31489 2.34% - 1s 0 0 780.32050 0 106 799.00000 780.32050 2.34% - 1s 0 0 780.32612 0 106 799.00000 780.32612 2.34% - 1s 0 0 780.32817 0 106 799.00000 780.32817 2.34% - 1s 0 0 780.32988 0 108 799.00000 780.32988 2.34% - 1s 0 0 780.32988 0 108 799.00000 780.32988 2.34% - 1s 0 2 780.33185 0 108 799.00000 780.33185 2.34% - 1s * 77 64 47 793.0000000 780.60174 1.56% 18.2 1s H 115 80 791.0000000 780.62613 1.31% 18.4 1s * 341 197 23 789.0000000 780.98152 1.02% 16.8 2s * 1086 467 46 788.0000000 781.88757 0.78% 17.6 4s 1511 550 cutoff 35 788.00000 782.58263 0.69% 17.1 5s H 3019 945 787.0000000 783.36538 0.46% 15.9 7s 5101 1088 cutoff 22 787.00000 784.12892 0.36% 15.2 10s Cutting planes: Gomory: 7 MIR: 4 Zero half: 18 Explored 8466 nodes (121852 simplex iterations) in 14.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 38), (8, 15), (14, 28), (14, 55), (15, 60), (16, 30), (16, 58), (17, 64), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(4, 45), (4, 50), (9, 36), (9, 53), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (35, 53), (36, 54), (39, 66), (40, 73), (59, 73), (66, 67)] Optimize a model with 295 rows, 2850 columns and 75494 nonzeros Presolve time: 0.06s Presolved: 295 rows, 2850 columns, 75494 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.793324e+02, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.33235 0 87 2525.00000 779.33235 69.1% - 0s Another try with MIP start H 0 0 798.0000000 779.33235 2.34% - 0s 0 0 779.52494 0 85 798.00000 779.52494 2.32% - 0s 0 0 779.52494 0 87 798.00000 779.52494 2.32% - 0s 0 0 779.69691 0 86 798.00000 779.69691 2.29% - 0s 0 0 780.07014 0 88 798.00000 780.07014 2.25% - 0s 0 0 780.07014 0 89 798.00000 780.07014 2.25% - 0s 0 0 780.09303 0 92 798.00000 780.09303 2.24% - 0s 0 0 780.10372 0 96 798.00000 780.10372 2.24% - 1s 0 0 780.11273 0 99 798.00000 780.11273 2.24% - 1s 0 0 780.15434 0 96 798.00000 780.15434 2.24% - 1s 0 0 780.15599 0 97 798.00000 780.15599 2.24% - 1s 0 0 780.17159 0 101 798.00000 780.17159 2.23% - 1s 0 0 780.17895 0 99 798.00000 780.17895 2.23% - 1s 0 0 780.18346 0 94 798.00000 780.18346 2.23% - 1s 0 0 780.18938 0 100 798.00000 780.18938 2.23% - 1s 0 0 780.20605 0 101 798.00000 780.20605 2.23% - 1s 0 0 780.21213 0 102 798.00000 780.21213 2.23% - 1s 0 0 780.24395 0 99 798.00000 780.24395 2.23% - 1s 0 0 780.24474 0 100 798.00000 780.24474 2.22% - 1s 0 0 780.24739 0 103 798.00000 780.24739 2.22% - 1s 0 0 780.24739 0 103 798.00000 780.24739 2.22% - 1s 0 2 780.25312 0 103 798.00000 780.25312 2.22% - 1s * 93 84 56 795.0000000 780.32335 1.85% 20.6 1s * 204 136 35 792.0000000 780.44015 1.46% 18.0 1s * 375 183 38 789.0000000 780.57996 1.07% 19.0 2s H 1088 342 787.0000000 782.33871 0.59% 18.5 4s 1342 360 785.00000 24 63 787.00000 782.76496 0.54% 17.9 5s 4742 334 cutoff 22 787.00000 784.97423 0.26% 15.3 10s Cutting planes: Gomory: 9 MIR: 8 Zero half: 21 Explored 5364 nodes (79436 simplex iterations) in 10.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 64), (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, 49), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (4, 45), (4, 25), (10, 40), (10, 26), (13, 40), (17, 50), (25, 50), (26, 56)] adding cut for [(32, 73), (66, 67), (36, 54), (39, 66), (8, 36), (11, 32), (11, 39), (12, 67), (12, 54), (59, 73)] adding cut for [(28, 53), (9, 20), (9, 47), (14, 55), (14, 58), (15, 20), (15, 60), (16, 28), (16, 58), (55, 60)] Optimize a model with 299 rows, 2850 columns and 76007 nonzeros Presolve time: 0.06s Presolved: 299 rows, 2850 columns, 76007 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795604e+02, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.56040 0 87 2525.00000 779.56040 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.56040 2.43% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 87 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 780.08625 0 87 799.00000 780.08625 2.37% - 0s 0 0 780.11864 0 95 799.00000 780.11864 2.36% - 0s 0 0 780.13093 0 100 799.00000 780.13093 2.36% - 0s 0 0 780.15222 0 94 799.00000 780.15222 2.36% - 0s 0 0 780.15249 0 98 799.00000 780.15249 2.36% - 0s 0 0 780.16131 0 100 799.00000 780.16131 2.36% - 1s 0 0 780.16332 0 104 799.00000 780.16332 2.36% - 1s 0 0 780.17419 0 104 799.00000 780.17419 2.36% - 1s 0 0 780.19004 0 103 799.00000 780.19004 2.35% - 1s 0 0 780.19997 0 102 799.00000 780.19997 2.35% - 1s 0 0 780.21166 0 104 799.00000 780.21166 2.35% - 1s 0 0 780.22057 0 104 799.00000 780.22057 2.35% - 1s 0 0 780.23384 0 103 799.00000 780.23384 2.35% - 1s 0 0 780.23384 0 105 799.00000 780.23384 2.35% - 1s 0 0 780.23928 0 103 799.00000 780.23928 2.35% - 1s 0 0 780.23928 0 105 799.00000 780.23928 2.35% - 1s 0 0 780.24119 0 106 799.00000 780.24119 2.35% - 1s 0 2 780.25552 0 106 799.00000 780.25552 2.35% - 1s * 75 66 41 792.0000000 780.56716 1.44% 20.3 1s H 113 91 791.0000000 780.64617 1.31% 18.5 2s * 421 270 33 790.0000000 781.09803 1.13% 15.6 2s H 697 398 789.0000000 781.56947 0.94% 17.0 5s * 714 380 33 788.0000000 781.56947 0.82% 17.0 5s * 1812 345 30 787.0000000 783.80769 0.41% 16.2 6s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Mod-K: 1 Explored 3362 nodes (49778 simplex iterations) in 8.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 54), (14, 28), (14, 55), (16, 38), (16, 58), (17, 50), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 58), (36, 54), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (39, 66), (9, 15), (9, 53), (11, 32), (11, 39), (12, 67), (12, 60), (13, 59), (15, 60), (59, 73)] adding cut for [(33, 51), (33, 45), (4, 45), (40, 41), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] Optimize a model with 302 rows, 2850 columns and 76595 nonzeros Presolve time: 0.06s Presolved: 302 rows, 2850 columns, 76595 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795604e+02, 266 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.56040 0 87 2525.00000 779.56040 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.56040 2.43% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 87 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 780.07467 0 89 799.00000 780.07467 2.37% - 0s 0 0 780.11864 0 95 799.00000 780.11864 2.36% - 0s 0 0 780.12623 0 97 799.00000 780.12623 2.36% - 0s 0 0 780.13297 0 101 799.00000 780.13297 2.36% - 0s 0 0 780.14005 0 97 799.00000 780.14005 2.36% - 0s 0 0 780.14847 0 100 799.00000 780.14847 2.36% - 0s 0 0 780.17256 0 97 799.00000 780.17256 2.36% - 0s 0 0 780.18579 0 99 799.00000 780.18579 2.35% - 1s 0 0 780.19058 0 94 799.00000 780.19058 2.35% - 1s 0 0 780.19076 0 101 799.00000 780.19076 2.35% - 1s 0 0 780.19963 0 101 799.00000 780.19963 2.35% - 1s 0 0 780.19963 0 103 799.00000 780.19963 2.35% - 1s 0 0 780.20194 0 105 799.00000 780.20194 2.35% - 1s 0 2 780.20241 0 105 799.00000 780.20241 2.35% - 1s * 140 134 96 798.0000000 780.57229 2.18% 13.6 1s H 169 147 797.0000000 780.57917 2.06% 13.4 1s * 236 178 72 792.0000000 780.57917 1.44% 13.4 1s H 600 237 788.0000000 781.28297 0.85% 13.9 2s * 899 278 29 787.0000000 782.33333 0.59% 15.4 4s 1101 285 785.62400 17 68 787.00000 782.85816 0.53% 15.3 5s Cutting planes: Gomory: 8 MIR: 7 Zero half: 13 Explored 4061 nodes (57161 simplex iterations) in 9.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 44), (3, 63), (4, 45), (4, 17), (33, 51), (33, 45), (43, 65), (43, 44), (34, 64), (17, 64), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (42, 65), (42, 57), (63, 74)] adding cut for [(48, 49), (6, 58), (6, 30), (62, 70), (29, 75), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 29), (31, 49), (61, 71), (61, 72), (30, 46), (37, 72), (37, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 41), (9, 20), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (20, 54), (26, 56)] Optimize a model with 305 rows, 2850 columns and 77066 nonzeros Presolve time: 0.06s Presolved: 305 rows, 2850 columns, 77066 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795604e+02, 283 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.56040 0 87 2525.00000 779.56040 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.56040 2.43% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 87 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 780.07467 0 89 799.00000 780.07467 2.37% - 0s 0 0 780.11864 0 95 799.00000 780.11864 2.36% - 0s 0 0 780.12623 0 97 799.00000 780.12623 2.36% - 0s 0 0 780.13304 0 99 799.00000 780.13304 2.36% - 0s 0 0 780.14822 0 101 799.00000 780.14822 2.36% - 0s 0 0 780.18904 0 95 799.00000 780.18904 2.35% - 0s 0 0 780.21404 0 97 799.00000 780.21404 2.35% - 1s 0 0 780.24122 0 99 799.00000 780.24122 2.35% - 1s 0 0 780.24508 0 101 799.00000 780.24508 2.35% - 1s 0 0 780.25348 0 99 799.00000 780.25348 2.35% - 1s 0 0 780.25843 0 104 799.00000 780.25843 2.35% - 1s 0 0 780.25971 0 104 799.00000 780.25971 2.35% - 1s 0 0 780.25971 0 104 799.00000 780.25971 2.35% - 1s 0 0 780.25971 0 104 799.00000 780.25971 2.35% - 1s 0 2 780.26147 0 104 799.00000 780.26147 2.35% - 1s * 66 66 41 792.0000000 780.51862 1.45% 18.2 1s * 68 55 42 790.0000000 780.51862 1.20% 17.9 1s * 357 232 20 789.0000000 781.37671 0.97% 15.8 1s H 603 349 788.0000000 782.17041 0.74% 15.6 2s * 1517 412 32 787.0000000 783.13083 0.49% 16.6 4s 2214 467 785.20357 24 70 787.00000 783.83983 0.40% 15.9 5s Cutting planes: Gomory: 2 MIR: 3 Zero half: 8 Explored 4287 nodes (60763 simplex iterations) in 7.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(4, 45), (4, 50), (9, 20), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (20, 36), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (36, 54), (39, 66), (40, 73), (59, 73), (66, 67)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (28, 58), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72), (30, 46)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (23, 65), (23, 62), (24, 64), (24, 57), (29, 75), (29, 62), (31, 75)] Optimize a model with 308 rows, 2850 columns and 77540 nonzeros Presolve time: 0.06s Presolved: 308 rows, 2850 columns, 77540 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795604e+02, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.56040 0 87 2525.00000 779.56040 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.56040 2.43% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 87 799.00000 779.84165 2.40% - 0s 0 0 779.84165 0 89 799.00000 779.84165 2.40% - 0s 0 0 780.08625 0 89 799.00000 780.08625 2.37% - 0s 0 0 780.11864 0 95 799.00000 780.11864 2.36% - 0s 0 0 780.13093 0 100 799.00000 780.13093 2.36% - 0s 0 0 780.15242 0 98 799.00000 780.15242 2.36% - 0s 0 0 780.15292 0 100 799.00000 780.15292 2.36% - 0s 0 0 780.15583 0 101 799.00000 780.15583 2.36% - 1s 0 0 780.16401 0 100 799.00000 780.16401 2.36% - 1s 0 0 780.16742 0 103 799.00000 780.16742 2.36% - 1s 0 0 780.16891 0 103 799.00000 780.16891 2.36% - 1s 0 0 780.16891 0 103 799.00000 780.16891 2.36% - 1s 0 2 780.16974 0 103 799.00000 780.16974 2.36% - 1s H 56 52 791.0000000 780.18027 1.37% 18.6 1s * 490 323 19 790.0000000 781.89051 1.03% 17.1 2s * 514 272 22 789.0000000 781.99628 0.89% 17.0 2s * 780 331 31 787.0000000 782.14321 0.62% 18.3 3s 2045 258 784.46875 22 76 787.00000 784.32558 0.34% 16.1 5s Cutting planes: Gomory: 2 MIR: 1 Zero half: 10 Explored 3214 nodes (48223 simplex iterations) in 6.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 25), (4, 45), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (17, 64), (19, 51), (19, 56), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 56), (28, 58), (29, 63), (29, 75), (30, 49), (32, 40), (33, 45), (33, 51), (37, 70), (37, 72), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 309 rows, 2850 columns and 78815 nonzeros Presolve time: 0.06s Presolved: 309 rows, 2850 columns, 78815 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.94215 0 90 799.00000 779.94215 2.39% - 0s 0 0 780.24538 0 88 799.00000 780.24538 2.35% - 0s 0 0 780.25426 0 97 799.00000 780.25426 2.35% - 1s 0 0 780.28528 0 97 799.00000 780.28528 2.34% - 1s 0 0 780.30876 0 94 799.00000 780.30876 2.34% - 1s 0 0 780.30934 0 96 799.00000 780.30934 2.34% - 1s 0 0 780.32989 0 94 799.00000 780.32989 2.34% - 1s 0 0 780.34633 0 99 799.00000 780.34633 2.33% - 1s 0 0 780.34965 0 99 799.00000 780.34965 2.33% - 1s H 0 0 789.0000000 780.34965 1.10% - 1s 0 2 780.39669 0 99 789.00000 780.39669 1.09% - 1s * 34 23 24 788.0000000 781.17208 0.87% 21.6 2s * 293 115 9 787.0000000 782.51478 0.57% 16.4 2s 1702 322 785.55046 21 74 787.00000 783.87166 0.40% 15.8 5s Cutting planes: Gomory: 6 MIR: 2 Zero half: 6 Explored 3640 nodes (51703 simplex iterations) in 7.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (6, 16), (6, 38), (9, 36), (9, 47), (10, 33), (10, 40), (12, 54), (12, 67), (13, 59), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (32, 40), (32, 73), (33, 51), (37, 48), (37, 70), (42, 57), (42, 65), (43, 44), (43, 65), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] adding cut for [(11, 66), (11, 39), (39, 66)] Optimize a model with 311 rows, 2850 columns and 79946 nonzeros Presolve time: 0.06s Presolved: 311 rows, 2850 columns, 79946 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 92 799.00000 779.88206 2.39% - 1s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25666 0 93 799.00000 780.25666 2.35% - 1s 0 0 780.26872 0 98 799.00000 780.26872 2.34% - 1s 0 0 780.26872 0 99 799.00000 780.26872 2.34% - 1s 0 0 780.29521 0 98 799.00000 780.29521 2.34% - 1s 0 0 780.29521 0 99 799.00000 780.29521 2.34% - 1s 0 0 780.31115 0 100 799.00000 780.31115 2.34% - 1s 0 0 780.31115 0 101 799.00000 780.31115 2.34% - 1s 0 0 780.31299 0 100 799.00000 780.31299 2.34% - 1s 0 0 780.31361 0 102 799.00000 780.31361 2.34% - 1s 0 2 780.31421 0 102 799.00000 780.31421 2.34% - 1s * 104 104 64 796.0000000 780.43689 1.96% 20.7 1s * 114 110 74 795.0000000 780.43689 1.83% 19.3 1s * 194 130 48 792.0000000 780.48963 1.45% 17.2 2s H 614 378 790.0000000 781.71646 1.05% 15.8 4s * 680 379 29 789.0000000 782.02666 0.88% 16.6 4s 715 392 786.57339 31 74 789.00000 782.19310 0.86% 17.0 5s * 942 436 57 788.0000000 782.31302 0.72% 17.9 6s * 2822 479 36 787.0000000 784.42857 0.33% 16.8 9s 3344 388 785.94068 42 60 787.00000 784.94020 0.26% 16.4 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Mod-K: 1 Explored 4018 nodes (62924 simplex iterations) in 10.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (3, 63), (6, 16), (6, 38), (8, 36), (12, 54), (12, 67), (14, 28), (14, 55), (15, 36), (15, 60), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (28, 58), (29, 62), (29, 75), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (60, 67), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 66), (32, 73), (33, 51), (17, 64), (19, 56), (19, 25), (39, 66), (40, 73), (10, 33), (10, 40), (11, 39), (11, 59), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] Optimize a model with 313 rows, 2850 columns and 80747 nonzeros Presolve time: 0.06s Presolved: 313 rows, 2850 columns, 80747 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 802.0000000 779.58313 2.80% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 87 799.00000 779.79635 2.40% - 0s 0 0 779.88293 0 93 799.00000 779.88293 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 95 799.00000 780.25703 2.35% - 1s 0 0 780.29339 0 90 799.00000 780.29339 2.34% - 1s 0 0 780.29901 0 94 799.00000 780.29901 2.34% - 1s 0 0 780.30703 0 95 799.00000 780.30703 2.34% - 1s 0 0 780.33285 0 99 799.00000 780.33285 2.34% - 1s 0 0 780.33783 0 103 799.00000 780.33783 2.34% - 1s 0 0 780.33809 0 103 799.00000 780.33809 2.34% - 1s 0 0 780.33809 0 103 799.00000 780.33809 2.34% - 1s 0 2 780.34138 0 103 799.00000 780.34138 2.34% - 1s * 109 99 70 795.0000000 780.36990 1.84% 15.0 1s * 248 142 33 791.0000000 780.39710 1.34% 14.8 1s H 676 386 789.0000000 781.56792 0.94% 18.1 3s * 1234 467 30 788.0000000 782.90000 0.65% 18.2 4s 1315 487 784.45614 23 60 788.00000 782.96610 0.64% 18.0 5s * 2718 350 37 787.0000000 783.95045 0.39% 17.0 8s 3440 242 785.16667 29 70 787.00000 784.71530 0.29% 16.3 10s Cutting planes: Gomory: 8 MIR: 1 Zero half: 7 Explored 4040 nodes (63720 simplex iterations) in 10.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 54), (9, 36), (9, 53), (11, 39), (11, 66), (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), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (32, 73), (37, 48), (37, 70), (39, 59), (42, 43), (42, 44), (43, 65), (50, 57), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 314 rows, 2850 columns and 81782 nonzeros Presolve time: 0.06s Presolved: 314 rows, 2850 columns, 81782 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 802.0000000 779.58313 2.80% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 87 799.00000 779.79635 2.40% - 0s 0 0 779.88293 0 93 799.00000 779.88293 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 95 799.00000 780.25703 2.35% - 1s 0 0 780.29339 0 90 799.00000 780.29339 2.34% - 1s 0 0 780.29901 0 94 799.00000 780.29901 2.34% - 1s 0 0 780.30703 0 95 799.00000 780.30703 2.34% - 1s 0 0 780.33285 0 99 799.00000 780.33285 2.34% - 1s 0 0 780.33783 0 103 799.00000 780.33783 2.34% - 1s 0 0 780.33809 0 103 799.00000 780.33809 2.34% - 1s 0 0 780.33809 0 103 799.00000 780.33809 2.34% - 1s 0 2 780.34138 0 103 799.00000 780.34138 2.34% - 1s * 97 92 68 798.0000000 780.36990 2.21% 13.3 1s H 158 132 794.0000000 780.38308 1.71% 14.9 2s * 163 93 47 791.0000000 780.38308 1.34% 15.1 2s * 320 138 26 788.0000000 780.66576 0.93% 17.1 2s 758 290 782.60096 14 78 788.00000 782.16923 0.74% 18.3 5s * 1100 248 26 787.0000000 783.26509 0.47% 17.7 5s Cutting planes: Gomory: 9 MIR: 2 Zero half: 5 Explored 2565 nodes (39851 simplex iterations) in 7.41 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.870000000000e+02, best bound 7.870000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (4, 17), (4, 45), (10, 26), (10, 40), (13, 40), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (33, 41), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 28), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (55, 58), (28, 53), (29, 75), (29, 62)] adding cut for [(32, 73), (39, 66), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (59, 73), (60, 67)] Optimize a model with 317 rows, 2850 columns and 82308 nonzeros Presolve time: 0.06s Presolved: 317 rows, 2850 columns, 82308 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 0s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 0s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 0s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 1s * 40 36 34 791.0000000 781.17093 1.24% 16.6 2s * 262 170 26 790.0000000 781.69645 1.05% 16.3 2s * 313 160 18 789.0000000 781.97833 0.89% 16.2 2s * 391 154 15 788.0000000 782.48294 0.70% 16.5 2s 1317 247 786.65766 26 72 788.00000 783.78317 0.54% 16.9 5s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 4772 nodes (70288 simplex iterations) in 9.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 25), (4, 45), (6, 16), (6, 38), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 58), (15, 36), (15, 60), (16, 58), (19, 51), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (33, 45), (33, 51), (34, 64), (34, 74), (37, 48), (37, 70), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (55, 60), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 318 rows, 2850 columns and 83389 nonzeros Presolve time: 0.07s Presolved: 318 rows, 2850 columns, 83389 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.58313 1.82% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 90 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.88206 0 90 794.00000 779.88206 1.78% - 0s 0 0 780.24032 0 91 794.00000 780.24032 1.73% - 0s 0 0 780.25036 0 93 794.00000 780.25036 1.73% - 0s 0 0 780.29587 0 95 794.00000 780.29587 1.73% - 0s 0 0 780.32487 0 98 794.00000 780.32487 1.72% - 0s 0 0 780.32909 0 98 794.00000 780.32909 1.72% - 0s 0 0 780.34945 0 97 794.00000 780.34945 1.72% - 1s 0 0 780.35400 0 100 794.00000 780.35400 1.72% - 1s 0 0 780.35641 0 100 794.00000 780.35641 1.72% - 1s 0 0 780.35861 0 100 794.00000 780.35861 1.72% - 1s 0 2 780.36070 0 100 794.00000 780.36070 1.72% - 1s H 102 73 791.0000000 780.73293 1.30% 18.4 1s * 547 352 24 790.0000000 781.85093 1.03% 16.4 2s H 1786 669 789.0000000 783.24938 0.73% 17.4 5s H 3501 1052 788.0000000 784.30708 0.47% 16.5 7s 5159 1272 786.41935 23 65 788.00000 784.78071 0.41% 16.0 10s 8873 1151 786.37500 24 56 788.00000 785.72800 0.29% 15.1 15s Cutting planes: Gomory: 4 MIR: 3 Zero half: 8 Explored 11375 nodes (161964 simplex iterations) in 17.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (14, 28), (14, 58), (16, 38), (16, 58), (17, 50), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 53), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (66, 67), (39, 66), (8, 9), (9, 36), (11, 32), (11, 39), (12, 67), (12, 54), (13, 59), (15, 36), (15, 60), (40, 73), (20, 54), (20, 55), (55, 60), (59, 73)] Optimize a model with 320 rows, 2850 columns and 83948 nonzeros Presolve time: 0.07s Presolved: 320 rows, 2850 columns, 83948 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 2 780.34547 0 95 799.00000 780.34547 2.33% - 1s * 49 43 38 792.0000000 781.20486 1.36% 19.4 2s * 89 69 31 791.0000000 781.25035 1.23% 17.8 2s * 144 90 43 790.0000000 781.30196 1.10% 16.4 2s * 510 262 26 789.0000000 782.74349 0.79% 16.7 2s 1100 378 787.02703 24 44 789.00000 783.00000 0.76% 17.4 5s H 1463 306 788.0000000 783.64706 0.55% 17.0 5s 5038 29 787.00000 24 62 788.00000 786.88889 0.14% 14.7 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 5072 nodes (75082 simplex iterations) in 10.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 23), (3, 63), (4, 41), (4, 45), (33, 51), (33, 45), (43, 65), (43, 44), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (42, 44), (42, 57), (63, 74)] adding cut for [(70, 72), (29, 75), (29, 62), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (55, 60), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (9, 20), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (13, 59), (20, 54), (26, 56), (59, 73)] Optimize a model with 323 rows, 2850 columns and 84410 nonzeros Presolve time: 0.07s Presolved: 323 rows, 2850 columns, 84410 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.58313 2.19% - 0s 0 0 779.79635 0 83 797.00000 779.79635 2.16% - 0s 0 0 779.79635 0 90 797.00000 779.79635 2.16% - 0s 0 0 779.79635 0 83 797.00000 779.79635 2.16% - 0s 0 0 779.88206 0 90 797.00000 779.88206 2.15% - 0s 0 0 780.24032 0 91 797.00000 780.24032 2.10% - 0s 0 0 780.25703 0 95 797.00000 780.25703 2.10% - 0s 0 0 780.29485 0 94 797.00000 780.29485 2.10% - 0s 0 0 780.29982 0 96 797.00000 780.29982 2.10% - 0s 0 0 780.30945 0 94 797.00000 780.30945 2.09% - 0s 0 0 780.31273 0 98 797.00000 780.31273 2.09% - 1s 0 0 780.31541 0 96 797.00000 780.31541 2.09% - 1s 0 0 780.33469 0 98 797.00000 780.33469 2.09% - 1s 0 0 780.33852 0 103 797.00000 780.33852 2.09% - 1s 0 0 780.34977 0 102 797.00000 780.34977 2.09% - 1s 0 0 780.35129 0 102 797.00000 780.35129 2.09% - 1s 0 0 780.35221 0 102 797.00000 780.35221 2.09% - 1s 0 0 780.35221 0 102 797.00000 780.35221 2.09% - 1s 0 2 780.35288 0 102 797.00000 780.35288 2.09% - 1s * 136 117 92 795.0000000 780.62051 1.81% 17.8 1s * 461 308 49 792.0000000 780.87636 1.40% 16.9 2s H 658 393 791.0000000 781.60393 1.19% 18.0 4s 663 396 782.96970 13 89 791.00000 781.84195 1.16% 18.1 5s * 695 388 30 790.0000000 781.84195 1.03% 18.2 5s H 804 388 789.0000000 782.50968 0.82% 18.5 5s H 1114 420 788.0000000 782.67126 0.68% 19.3 6s 3080 642 785.53979 35 83 788.00000 784.15507 0.49% 17.3 10s 6574 604 786.95238 41 56 788.00000 785.63636 0.30% 15.7 15s Cutting planes: Gomory: 7 MIR: 1 Zero half: 7 Explored 7779 nodes (117639 simplex iterations) in 16.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (9, 20), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (13, 73), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 54), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (29, 75), (32, 40), (37, 48), (37, 70), (39, 59), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (55, 60), (59, 73), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (12, 66), (12, 67)] Optimize a model with 325 rows, 2850 columns and 85359 nonzeros Presolve time: 0.07s Presolved: 325 rows, 2850 columns, 85359 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.58313 2.19% - 0s 0 0 779.79635 0 83 797.00000 779.79635 2.16% - 0s 0 0 779.79635 0 90 797.00000 779.79635 2.16% - 0s 0 0 779.79635 0 85 797.00000 779.79635 2.16% - 0s 0 0 779.88206 0 92 797.00000 779.88206 2.15% - 0s 0 0 780.24032 0 91 797.00000 780.24032 2.10% - 0s 0 0 780.25703 0 95 797.00000 780.25703 2.10% - 0s 0 0 780.29483 0 94 797.00000 780.29483 2.10% - 0s 0 0 780.29982 0 96 797.00000 780.29982 2.10% - 1s 0 0 780.30945 0 94 797.00000 780.30945 2.09% - 1s 0 0 780.31288 0 99 797.00000 780.31288 2.09% - 1s 0 0 780.32786 0 98 797.00000 780.32786 2.09% - 1s 0 0 780.35972 0 99 797.00000 780.35972 2.09% - 1s 0 0 780.36408 0 99 797.00000 780.36408 2.09% - 1s 0 0 780.36609 0 101 797.00000 780.36609 2.09% - 1s 0 0 780.36666 0 104 797.00000 780.36666 2.09% - 1s 0 0 780.36666 0 104 797.00000 780.36666 2.09% - 1s 0 2 780.36771 0 104 797.00000 780.36771 2.09% - 1s H 63 63 795.0000000 780.62129 1.81% 27.1 1s H 135 110 793.0000000 780.83725 1.53% 20.9 1s * 532 368 35 792.0000000 781.56637 1.32% 16.7 2s * 969 549 42 790.0000000 782.19563 0.99% 18.5 4s * 1133 526 37 789.0000000 782.19563 0.86% 18.4 4s 1303 544 786.30317 27 90 789.00000 782.60410 0.81% 18.2 5s * 1991 646 43 788.0000000 783.23358 0.60% 18.4 6s 4462 914 786.66667 35 73 788.00000 784.64655 0.43% 16.8 10s 7911 831 786.29493 33 78 788.00000 785.62697 0.30% 15.8 15s Cutting planes: Gomory: 4 MIR: 3 Zero half: 6 Explored 10021 nodes (150386 simplex iterations) in 17.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (8, 15), (9, 20), (11, 32), (11, 39), (12, 54), (12, 67), (14, 55), (14, 58), (15, 60), (16, 38), (16, 58), (19, 51), (19, 56), (20, 36), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (29, 62), (29, 75), (33, 45), (33, 51), (36, 54), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (55, 60), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 326 rows, 2850 columns and 86394 nonzeros Presolve time: 0.07s Presolved: 326 rows, 2850 columns, 86394 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 231 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.58313 1.94% - 0s 0 0 779.79635 0 83 795.00000 779.79635 1.91% - 0s 0 0 779.79635 0 90 795.00000 779.79635 1.91% - 0s 0 0 779.79635 0 83 795.00000 779.79635 1.91% - 0s 0 0 779.88206 0 90 795.00000 779.88206 1.90% - 0s 0 0 780.24032 0 91 795.00000 780.24032 1.86% - 0s 0 0 780.25162 0 93 795.00000 780.25162 1.86% - 0s 0 0 780.29861 0 96 795.00000 780.29861 1.85% - 0s 0 0 780.33418 0 96 795.00000 780.33418 1.84% - 0s 0 0 780.34364 0 102 795.00000 780.34364 1.84% - 1s 0 0 780.34438 0 99 795.00000 780.34438 1.84% - 1s 0 0 780.34733 0 100 795.00000 780.34733 1.84% - 1s 0 0 780.35025 0 99 795.00000 780.35025 1.84% - 1s 0 0 780.35614 0 103 795.00000 780.35614 1.84% - 1s 0 0 780.36111 0 103 795.00000 780.36111 1.84% - 1s 0 0 780.36268 0 107 795.00000 780.36268 1.84% - 1s 0 0 780.39239 0 103 795.00000 780.39239 1.84% - 1s 0 0 780.39708 0 104 795.00000 780.39708 1.84% - 1s 0 0 780.39845 0 106 795.00000 780.39845 1.84% - 1s 0 0 780.39845 0 106 795.00000 780.39845 1.84% - 1s 0 2 780.40165 0 106 795.00000 780.40165 1.84% - 1s * 236 193 45 794.0000000 780.72075 1.67% 19.6 2s * 239 179 45 793.0000000 780.72075 1.55% 19.4 2s * 296 131 39 789.0000000 780.77980 1.04% 19.2 2s 1480 523 786.77660 29 74 789.00000 783.26807 0.73% 18.3 5s * 2588 824 24 788.0000000 784.09098 0.50% 17.7 6s 4675 1090 786.65909 30 62 788.00000 784.88889 0.39% 16.5 10s 8214 603 cutoff 30 788.00000 786.00800 0.25% 15.4 15s Cutting planes: Gomory: 6 MIR: 2 Zero half: 11 Explored 9188 nodes (137153 simplex iterations) in 16.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 32), (11, 59), (12, 54), (12, 67), (17, 52), (17, 64), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (39, 59), (39, 66), (42, 57), (42, 65), (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), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (34, 74), (37, 48), (37, 70), (53, 55), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 328 rows, 2850 columns and 86923 nonzeros Presolve time: 0.07s Presolved: 328 rows, 2850 columns, 86923 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 273 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 87 799.00000 779.79635 2.40% - 0s 0 0 779.88320 0 91 799.00000 779.88320 2.39% - 0s 0 0 780.23659 0 89 799.00000 780.23659 2.35% - 1s 0 0 780.24437 0 94 799.00000 780.24437 2.35% - 1s 0 0 780.25427 0 94 799.00000 780.25427 2.35% - 1s 0 0 780.28098 0 98 799.00000 780.28098 2.34% - 1s 0 0 780.34352 0 95 799.00000 780.34352 2.33% - 1s 0 0 780.35682 0 100 799.00000 780.35682 2.33% - 1s 0 0 780.36660 0 100 799.00000 780.36660 2.33% - 1s 0 0 780.37442 0 102 799.00000 780.37442 2.33% - 1s 0 0 780.38355 0 101 799.00000 780.38355 2.33% - 1s 0 0 780.38655 0 99 799.00000 780.38655 2.33% - 1s 0 0 780.38888 0 103 799.00000 780.38888 2.33% - 1s 0 0 780.38919 0 104 799.00000 780.38919 2.33% - 1s 0 0 780.38919 0 104 799.00000 780.38919 2.33% - 1s 0 2 780.38975 0 104 799.00000 780.38975 2.33% - 1s H 54 54 792.0000000 780.56252 1.44% 22.5 1s * 328 228 46 790.0000000 781.50689 1.08% 15.5 2s 938 519 783.70007 18 91 790.00000 781.96703 1.02% 16.2 5s * 1644 560 30 789.0000000 782.92193 0.77% 15.1 6s 4207 1289 785.28512 23 78 789.00000 784.22093 0.61% 15.0 10s * 4321 1091 24 788.0000000 784.23270 0.48% 15.0 10s 7816 786 786.30142 21 74 788.00000 785.60256 0.30% 14.7 15s Cutting planes: Gomory: 9 MIR: 2 Zero half: 4 Explored 9459 nodes (132769 simplex iterations) in 16.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (17, 64), (39, 66), (9, 47), (9, 20), (11, 32), (11, 39), (12, 67), (12, 54), (24, 64), (24, 57), (50, 57), (20, 54), (25, 50), (26, 51), (26, 56)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (28, 58), (48, 49), (62, 70), (22, 48), (22, 62), (21, 71), (21, 38), (61, 71), (61, 72), (30, 46), (37, 70), (37, 72)] adding cut for [(34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 75), (29, 63), (23, 65), (23, 63), (31, 75)] Optimize a model with 331 rows, 2850 columns and 87315 nonzeros Presolve time: 0.07s Presolved: 331 rows, 2850 columns, 87315 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 267 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.58313 1.82% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 90 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.88206 0 90 794.00000 779.88206 1.78% - 0s 0 0 780.24032 0 91 794.00000 780.24032 1.73% - 0s 0 0 780.25162 0 93 794.00000 780.25162 1.73% - 0s 0 0 780.29677 0 94 794.00000 780.29677 1.73% - 0s 0 0 780.32554 0 95 794.00000 780.32554 1.72% - 0s 0 0 780.32558 0 97 794.00000 780.32558 1.72% - 1s 0 0 780.33192 0 98 794.00000 780.33192 1.72% - 1s 0 0 780.33342 0 98 794.00000 780.33342 1.72% - 1s 0 0 780.33492 0 101 794.00000 780.33492 1.72% - 1s 0 0 780.33492 0 101 794.00000 780.33492 1.72% - 1s H 0 0 792.0000000 780.33492 1.47% - 1s H 0 0 791.0000000 780.33492 1.35% - 1s 0 2 780.34750 0 101 791.00000 780.34750 1.35% - 1s * 281 182 25 790.0000000 781.93231 1.02% 18.6 2s * 475 252 30 789.0000000 782.47580 0.83% 18.3 3s * 800 327 44 788.0000000 782.98732 0.64% 19.1 4s 1233 380 cutoff 28 788.00000 783.32160 0.59% 18.5 5s 4664 665 785.86235 23 77 788.00000 785.40964 0.33% 16.0 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 7 Explored 6708 nodes (100873 simplex iterations) in 12.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 45), (4, 52), (6, 16), (6, 38), (16, 58), (17, 52), (19, 25), (19, 56), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (33, 45), (33, 51), (34, 64), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (32, 73), (66, 67), (39, 66), (10, 40), (10, 41), (11, 39), (11, 59), (12, 67), (12, 60), (14, 53), (14, 55), (15, 20), (15, 60), (20, 55), (59, 73)] Optimize a model with 333 rows, 2850 columns and 88012 nonzeros Presolve time: 0.07s Presolved: 333 rows, 2850 columns, 88012 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 245 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 793.0000000 779.58313 1.69% - 0s 0 0 779.79635 0 83 793.00000 779.79635 1.67% - 0s 0 0 779.79635 0 90 793.00000 779.79635 1.67% - 0s 0 0 779.79635 0 83 793.00000 779.79635 1.67% - 0s 0 0 779.94215 0 90 793.00000 779.94215 1.65% - 0s 0 0 780.25068 0 91 793.00000 780.25068 1.61% - 0s 0 0 780.25871 0 91 793.00000 780.25871 1.61% - 0s 0 0 780.28420 0 93 793.00000 780.28420 1.60% - 0s 0 0 780.33134 0 93 793.00000 780.33134 1.60% - 0s 0 0 780.33940 0 100 793.00000 780.33940 1.60% - 0s 0 0 780.34974 0 99 793.00000 780.34974 1.60% - 0s 0 0 780.34974 0 99 793.00000 780.34974 1.60% - 1s 0 2 780.44153 0 99 793.00000 780.44153 1.58% - 1s * 56 39 46 792.0000000 781.24471 1.36% 14.8 2s * 57 31 47 791.0000000 781.24471 1.23% 14.6 2s * 131 73 19 790.0000000 781.29716 1.10% 14.7 2s * 254 135 37 789.0000000 782.25653 0.85% 16.0 2s * 860 315 27 788.0000000 783.12453 0.62% 17.5 4s 1096 309 785.90052 19 64 788.00000 783.43084 0.58% 17.5 5s Cutting planes: Gomory: 5 MIR: 2 Zero half: 6 Explored 4628 nodes (70321 simplex iterations) in 9.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (9, 20), (10, 26), (10, 40), (11, 39), (11, 59), (12, 60), (12, 67), (15, 20), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 63), (29, 75), (32, 40), (32, 73), (34, 64), (34, 74), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (51, 56), (59, 73), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (55, 58), (28, 53), (61, 71), (61, 72), (30, 49)] Optimize a model with 335 rows, 2850 columns and 88814 nonzeros Presolve time: 0.07s Presolved: 335 rows, 2850 columns, 88814 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 805.0000000 779.58313 3.16% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 2s * 82 66 70 795.0000000 781.02075 1.76% 14.9 2s * 120 81 28 793.0000000 781.29393 1.48% 17.5 2s * 210 112 33 790.0000000 781.46403 1.08% 18.0 3s H 692 323 789.0000000 783.02531 0.76% 17.8 4s 719 334 783.72081 21 93 789.00000 783.02531 0.76% 18.1 5s * 3476 781 34 788.0000000 784.80000 0.41% 16.3 9s 4212 732 cutoff 27 788.00000 785.24561 0.35% 16.0 10s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 6376 nodes (94590 simplex iterations) in 12.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (8, 9), (9, 20), (11, 32), (11, 39), (12, 54), (12, 67), (16, 38), (16, 58), (19, 25), (19, 51), (20, 54), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (32, 56), (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 336 rows, 2850 columns and 89634 nonzeros Presolve time: 0.07s Presolved: 336 rows, 2850 columns, 89634 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 2s * 136 110 42 797.0000000 781.24413 1.98% 16.2 2s * 182 116 35 792.0000000 781.63183 1.31% 16.5 2s * 591 287 21 790.0000000 782.62781 0.93% 16.6 3s 791 382 785.77449 15 73 790.00000 782.83653 0.91% 17.4 5s * 807 366 23 789.0000000 782.83653 0.78% 17.5 5s 3692 919 786.86449 21 73 789.00000 784.88790 0.52% 16.3 10s * 5186 869 26 788.0000000 785.38516 0.33% 15.9 12s Cutting planes: Gomory: 5 MIR: 3 Zero half: 5 Explored 7205 nodes (107324 simplex iterations) in 14.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (11, 32), (11, 39), (12, 54), (12, 67), (17, 64), (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), (63, 74), (66, 67)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 28), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (55, 58), (29, 75), (29, 62)] Optimize a model with 338 rows, 2850 columns and 90087 nonzeros Presolve time: 0.07s Presolved: 338 rows, 2850 columns, 90087 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 260 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 793.0000000 779.58313 1.69% - 0s 0 0 779.79635 0 83 793.00000 779.79635 1.67% - 0s 0 0 779.79635 0 90 793.00000 779.79635 1.67% - 0s 0 0 779.79635 0 83 793.00000 779.79635 1.67% - 0s 0 0 779.88206 0 90 793.00000 779.88206 1.65% - 0s 0 0 780.24032 0 91 793.00000 780.24032 1.61% - 0s 0 0 780.25162 0 92 793.00000 780.25162 1.61% - 0s 0 0 780.27179 0 95 793.00000 780.27179 1.61% - 0s 0 0 780.29041 0 99 793.00000 780.29041 1.60% - 0s 0 0 780.33595 0 101 793.00000 780.33595 1.60% - 0s 0 0 780.34542 0 104 793.00000 780.34542 1.60% - 0s 0 0 780.36050 0 104 793.00000 780.36050 1.59% - 0s 0 0 780.36625 0 105 793.00000 780.36625 1.59% - 0s 0 0 780.36950 0 105 793.00000 780.36950 1.59% - 1s 0 0 780.36950 0 105 793.00000 780.36950 1.59% - 1s 0 2 780.37598 0 105 793.00000 780.37598 1.59% - 1s * 86 79 51 790.0000000 780.99734 1.14% 22.9 1s H 248 176 789.0000000 781.58160 0.94% 19.3 1s 1806 633 787.94937 21 68 789.00000 783.92634 0.64% 17.9 5s 4805 1510 786.85000 23 73 789.00000 785.14286 0.49% 16.3 10s 8048 1918 cutoff 21 789.00000 785.76415 0.41% 15.6 15s * 9925 1296 28 788.0000000 786.05861 0.25% 15.4 17s Cutting planes: Gomory: 5 MIR: 2 Zero half: 10 Explored 11712 nodes (168756 simplex iterations) in 19.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(4, 45), (10, 33), (10, 40), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (31, 75), (32, 40), (32, 56), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(6, 38), (6, 16), (70, 72), (14, 55), (14, 28), (16, 58), (37, 48), (37, 70), (21, 38), (21, 71), (22, 48), (22, 49), (55, 58), (28, 53), (61, 71), (61, 72), (30, 46), (30, 49)] adding cut for [(66, 67), (39, 59), (8, 54), (11, 66), (11, 39), (12, 67), (12, 60), (13, 73), (13, 41), (15, 54), (15, 60), (59, 73)] Optimize a model with 341 rows, 2850 columns and 90589 nonzeros Presolve time: 0.07s Presolved: 341 rows, 2850 columns, 90589 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 1s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 95 799.00000 780.25703 2.35% - 1s 0 0 780.29483 0 94 799.00000 780.29483 2.34% - 1s 0 0 780.30001 0 96 799.00000 780.30001 2.34% - 1s 0 0 780.30945 0 94 799.00000 780.30945 2.34% - 1s 0 0 780.31288 0 99 799.00000 780.31288 2.34% - 1s 0 0 780.32786 0 98 799.00000 780.32786 2.34% - 1s 0 0 780.35972 0 99 799.00000 780.35972 2.33% - 1s 0 0 780.36408 0 99 799.00000 780.36408 2.33% - 1s 0 0 780.36617 0 100 799.00000 780.36617 2.33% - 1s 0 0 780.37272 0 101 799.00000 780.37272 2.33% - 1s 0 0 780.37504 0 103 799.00000 780.37504 2.33% - 1s 0 0 780.37510 0 105 799.00000 780.37510 2.33% - 1s 0 0 780.37510 0 105 799.00000 780.37510 2.33% - 1s 0 2 780.37542 0 105 799.00000 780.37542 2.33% - 1s * 78 74 51 792.0000000 780.57405 1.44% 20.7 2s * 499 290 15 790.0000000 781.99905 1.01% 17.4 2s H 1235 517 789.0000000 783.02709 0.76% 18.4 4s 1452 536 784.57299 22 91 789.00000 783.33639 0.72% 17.9 5s 4635 1732 785.93750 22 69 789.00000 784.76812 0.54% 15.8 10s * 5965 1695 33 788.0000000 785.04542 0.37% 15.3 11s 8389 1590 786.95539 30 74 788.00000 785.62590 0.30% 14.8 15s Cutting planes: Gomory: 4 MIR: 3 Zero half: 8 Explored 11912 nodes (163767 simplex iterations) in 19.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (3, 75), (8, 36), (11, 32), (11, 39), (15, 36), (15, 60), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (34, 64), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (63, 74), (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 343 rows, 2850 columns and 91174 nonzeros Presolve time: 0.07s Presolved: 343 rows, 2850 columns, 91174 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 246 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 804.0000000 779.58313 3.04% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29815 0 98 799.00000 780.29815 2.34% - 1s 0 0 780.29815 0 98 799.00000 780.29815 2.34% - 1s H 0 0 796.0000000 780.29815 1.97% - 1s 0 2 780.34548 0 98 796.00000 780.34548 1.97% - 1s * 88 55 26 789.0000000 781.25035 0.98% 18.9 2s 910 363 786.44517 26 86 789.00000 783.23565 0.73% 17.7 5s 4246 996 787.28571 22 74 789.00000 785.06262 0.50% 16.2 10s 7921 1172 787.41830 25 85 789.00000 785.98895 0.38% 15.3 15s * 7972 848 24 788.0000000 786.00000 0.25% 15.3 15s Cutting planes: Gomory: 5 MIR: 3 Zero half: 5 Explored 9255 nodes (134865 simplex iterations) in 16.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (3, 75), (9, 20), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (20, 54), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 63), (29, 75), (32, 40), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74), (66, 67)] adding cut for [(48, 49), (6, 58), (6, 30), (62, 70), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (31, 49), (61, 71), (61, 72), (30, 46), (37, 72), (37, 70)] Optimize a model with 345 rows, 2850 columns and 91775 nonzeros Presolve time: 0.07s Presolved: 345 rows, 2850 columns, 91775 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 800.0000000 779.58313 2.55% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 95 799.00000 780.25703 2.35% - 1s 0 0 780.29483 0 94 799.00000 780.29483 2.34% - 1s 0 0 780.30001 0 96 799.00000 780.30001 2.34% - 1s 0 0 780.30945 0 94 799.00000 780.30945 2.34% - 1s 0 0 780.31153 0 95 799.00000 780.31153 2.34% - 1s 0 0 780.31918 0 100 799.00000 780.31918 2.34% - 1s 0 0 780.31918 0 100 799.00000 780.31918 2.34% - 1s 0 2 780.32266 0 100 799.00000 780.32266 2.34% - 1s * 95 90 63 795.0000000 780.52678 1.82% 18.0 1s 616 489 781.42394 14 90 795.00000 781.42394 1.71% 17.6 5s H 752 482 790.0000000 781.50865 1.07% 18.4 5s * 1198 553 40 789.0000000 783.07692 0.75% 18.8 8s 2105 591 785.45000 40 72 789.00000 784.15377 0.61% 17.5 10s * 5002 702 45 788.0000000 785.43548 0.33% 16.6 14s 5368 625 786.51171 39 78 788.00000 785.68391 0.29% 16.4 15s Cutting planes: Gomory: 4 MIR: 2 Zero half: 3 Mod-K: 1 Explored 6630 nodes (102918 simplex iterations) in 16.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(9, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 36), (15, 60), (19, 25), (19, 56), (22, 62), (22, 75), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (31, 75), (32, 73), (33, 51), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 55), (14, 58), (8, 54), (48, 49), (20, 54), (20, 55), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 347 rows, 2850 columns and 92456 nonzeros Presolve time: 0.07s Presolved: 347 rows, 2850 columns, 92456 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 292 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.58313 1.82% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 90 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.88206 0 90 794.00000 779.88206 1.78% - 0s 0 0 780.24032 0 91 794.00000 780.24032 1.73% - 0s 0 0 780.25036 0 93 794.00000 780.25036 1.73% - 0s 0 0 780.29475 0 93 794.00000 780.29475 1.73% - 0s 0 0 780.30132 0 95 794.00000 780.30132 1.73% - 1s 0 0 780.30552 0 95 794.00000 780.30552 1.72% - 1s 0 0 780.32764 0 97 794.00000 780.32764 1.72% - 1s 0 0 780.32779 0 98 794.00000 780.32779 1.72% - 1s 0 0 780.32779 0 98 794.00000 780.32779 1.72% - 1s H 0 0 792.0000000 780.32779 1.47% - 1s H 0 0 790.0000000 780.32779 1.22% - 1s 0 2 780.35056 0 98 790.00000 780.35056 1.22% - 1s * 295 171 14 789.0000000 782.25188 0.86% 17.0 2s 1044 390 784.42121 18 77 789.00000 783.00341 0.76% 17.3 5s H 3989 792 788.0000000 785.10824 0.37% 16.0 9s 4529 740 786.04145 23 78 788.00000 785.38776 0.33% 15.8 10s Cutting planes: Gomory: 6 MIR: 3 Zero half: 5 Explored 6439 nodes (95233 simplex iterations) in 12.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (11, 32), (11, 59), (12, 60), (12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 49), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (29, 62), (29, 75), (31, 49), (32, 56), (37, 48), (37, 70), (39, 59), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 348 rows, 2850 columns and 93446 nonzeros Presolve time: 0.07s Presolved: 348 rows, 2850 columns, 93446 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 228 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 812.0000000 779.58313 3.99% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 2s * 58 50 49 792.0000000 781.12554 1.37% 18.7 2s * 451 301 31 791.0000000 782.73554 1.04% 17.6 3s 700 423 785.33645 21 77 791.00000 783.03627 1.01% 19.0 5s H 912 442 790.0000000 783.03627 0.88% 18.9 5s * 1422 467 35 789.0000000 783.55446 0.69% 18.2 6s 4018 995 786.00000 22 60 789.00000 784.97234 0.51% 16.2 10s 7588 1236 787.80000 26 61 789.00000 785.81250 0.40% 15.4 15s 11724 962 786.63897 24 66 789.00000 786.52234 0.31% 14.9 20s *12701 300 26 788.0000000 786.75653 0.16% 14.7 20s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 13014 nodes (188721 simplex iterations) in 21.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.880000000000e+02, best bound 7.880000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (10, 13), (10, 40), (11, 32), (11, 73), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (31, 49), (32, 56), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (39, 59), (9, 36), (9, 47), (12, 67), (12, 60), (15, 36), (15, 60)] Optimize a model with 350 rows, 2850 columns and 93987 nonzeros Presolve time: 0.07s Presolved: 350 rows, 2850 columns, 93987 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 258 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 1s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 1s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 95 799.00000 780.25703 2.35% - 1s 0 0 780.29483 0 94 799.00000 780.29483 2.34% - 1s 0 0 780.30001 0 96 799.00000 780.30001 2.34% - 1s 0 0 780.30945 0 94 799.00000 780.30945 2.34% - 1s 0 0 780.31153 0 95 799.00000 780.31153 2.34% - 1s 0 0 780.31918 0 100 799.00000 780.31918 2.34% - 1s 0 0 780.31918 0 100 799.00000 780.31918 2.34% - 1s 0 2 780.32266 0 100 799.00000 780.32266 2.34% - 1s * 95 90 63 795.0000000 780.52678 1.82% 18.0 1s 614 466 791.72244 43 101 795.00000 781.25741 1.73% 16.5 5s * 725 473 76 793.0000000 781.27638 1.48% 17.6 6s * 799 459 52 791.0000000 781.27778 1.23% 17.9 6s H 870 438 790.0000000 781.52911 1.07% 18.0 6s H 1000 431 789.0000000 782.23541 0.86% 17.9 7s 1826 618 786.10417 35 81 789.00000 783.15958 0.74% 18.2 10s 4734 1506 786.11186 46 69 789.00000 784.55596 0.56% 16.4 15s 7792 2295 786.77778 35 49 789.00000 785.18586 0.48% 15.7 20s 11155 2825 787.82423 37 69 789.00000 785.56324 0.44% 15.1 25s 15035 3153 787.18605 46 61 789.00000 785.93525 0.39% 14.7 30s 20141 3068 786.97778 41 78 789.00000 786.33352 0.34% 14.1 35s 25375 2413 787.10000 37 61 789.00000 786.72512 0.29% 13.5 40s Cutting planes: Gomory: 10 MIR: 1 Zero half: 8 Explored 30993 nodes (399053 simplex iterations) in 44.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (9, 36), (9, 47), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (15, 36), (15, 60), (19, 25), (19, 51), (20, 54), (20, 55), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (32, 73), (34, 64), (34, 74), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (50, 57), (51, 56), (55, 60), (66, 67)] adding cut for [(70, 72), (14, 58), (14, 28), (29, 75), (29, 62), (16, 38), (16, 58), (37, 48), (37, 70), (22, 48), (22, 62), (28, 53), (61, 71), (61, 72), (21, 38), (21, 71)] Optimize a model with 352 rows, 2850 columns and 94753 nonzeros Presolve time: 0.07s Presolved: 352 rows, 2850 columns, 94753 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 273 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 800.0000000 779.58313 2.55% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 1s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 1s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 2s * 25 25 16 789.0000000 781.17453 0.99% 27.6 2s 801 354 785.08140 17 79 789.00000 783.18978 0.74% 18.7 5s 3670 844 cutoff 18 789.00000 784.92453 0.52% 16.7 10s 7456 991 787.57547 22 70 789.00000 785.91803 0.39% 15.7 15s 11785 211 787.66667 22 65 789.00000 787.23529 0.22% 14.8 20s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 12120 nodes (177750 simplex iterations) in 20.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 31), (3, 63), (6, 49), (6, 30), (43, 65), (43, 44), (34, 74), (29, 62), (29, 63), (30, 46), (23, 65), (23, 62), (24, 64), (24, 57), (31, 49), (42, 44), (42, 57)] adding cut for [(70, 72), (8, 15), (28, 58), (14, 28), (14, 55), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 75), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 73), (32, 56), (33, 45), (4, 45), (19, 51), (19, 25), (40, 73), (10, 33), (10, 40), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (36, 54), (39, 66), (9, 36), (9, 47), (11, 39), (11, 59), (12, 67), (12, 54), (13, 59)] Optimize a model with 356 rows, 2850 columns and 95260 nonzeros Presolve time: 0.07s Presolved: 356 rows, 2850 columns, 95260 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 271 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 813.0000000 779.58313 4.11% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 1s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 1s 0 0 780.25703 0 94 799.00000 780.25703 2.35% - 1s 0 0 780.27203 0 98 799.00000 780.27203 2.34% - 1s 0 0 780.27611 0 96 799.00000 780.27611 2.34% - 1s 0 0 780.27611 0 97 799.00000 780.27611 2.34% - 1s 0 0 780.29689 0 95 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 0 780.29689 0 96 799.00000 780.29689 2.34% - 1s 0 2 780.30602 0 96 799.00000 780.30602 2.34% - 2s * 78 66 64 798.0000000 781.20444 2.10% 16.6 2s * 116 73 24 793.0000000 781.29393 1.48% 19.1 2s * 168 91 41 791.0000000 781.30196 1.23% 18.0 2s * 205 103 22 790.0000000 781.31497 1.10% 18.3 2s * 510 225 20 789.0000000 782.45814 0.83% 19.0 3s 778 307 783.23554 14 87 789.00000 782.80000 0.79% 19.8 5s 3842 930 786.70939 19 83 789.00000 785.03125 0.50% 16.5 10s 7574 1180 787.29591 19 84 789.00000 785.95745 0.39% 15.3 15s 12123 463 787.49180 18 61 789.00000 787.00000 0.25% 14.4 20s Cutting planes: Gomory: 5 MIR: 3 Zero half: 4 Explored 13015 nodes (184112 simplex iterations) in 20.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(3, 29), (9, 20), (10, 26), (10, 33), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (20, 54), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 75), (32, 56), (33, 51), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(48, 49), (6, 58), (6, 30), (16, 38), (16, 58), (21, 38), (21, 71), (31, 49), (70, 72), (61, 71), (61, 72), (30, 46), (37, 48), (37, 70)] adding cut for [(2, 74), (2, 63), (63, 74)] Optimize a model with 359 rows, 2850 columns and 95774 nonzeros Presolve time: 0.07s Presolved: 359 rows, 2850 columns, 95774 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 260 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.58313 1.82% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 90 794.00000 779.79635 1.79% - 0s 0 0 779.79635 0 83 794.00000 779.79635 1.79% - 0s 0 0 779.88206 0 90 794.00000 779.88206 1.78% - 0s 0 0 780.24032 0 91 794.00000 780.24032 1.73% - 0s 0 0 780.25162 0 93 794.00000 780.25162 1.73% - 0s 0 0 780.25699 0 95 794.00000 780.25699 1.73% - 0s 0 0 780.30145 0 95 794.00000 780.30145 1.73% - 0s 0 0 780.30145 0 96 794.00000 780.30145 1.73% - 1s 0 0 780.30828 0 97 794.00000 780.30828 1.72% - 1s 0 0 780.32924 0 101 794.00000 780.32924 1.72% - 1s 0 0 780.32924 0 100 794.00000 780.32924 1.72% - 1s 0 2 780.34669 0 100 794.00000 780.34669 1.72% - 1s H 27 27 793.0000000 780.40068 1.59% 19.5 1s H 54 54 792.0000000 780.40068 1.46% 18.4 1s * 383 261 31 790.0000000 781.57480 1.07% 16.2 2s 1606 637 786.98765 26 84 790.00000 783.08497 0.88% 17.2 5s * 1959 717 34 789.0000000 783.42282 0.71% 17.2 5s 4411 1679 784.86096 22 74 789.00000 784.41728 0.58% 16.6 10s 7345 2455 785.71670 18 83 789.00000 784.99342 0.51% 15.9 15s 10633 3057 cutoff 26 789.00000 785.41382 0.45% 15.4 20s 14477 3350 786.24643 21 76 789.00000 785.83333 0.40% 15.1 25s 19413 3357 787.61376 21 64 789.00000 786.23820 0.35% 14.4 30s 25226 2549 cutoff 33 789.00000 786.73962 0.29% 13.8 35s Cutting planes: Gomory: 7 MIR: 3 Zero half: 6 Explored 30536 nodes (398564 simplex iterations) in 39.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 58), (11, 39), (11, 59), (12, 54), (12, 67), (16, 38), (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, 51), (26, 56), (30, 46), (32, 56), (32, 73), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 360 rows, 2850 columns and 96477 nonzeros Presolve time: 0.07s Presolved: 360 rows, 2850 columns, 96477 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 260 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 802.0000000 779.58313 2.80% - 0s H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 87 799.00000 779.79635 2.40% - 0s 0 0 779.88320 0 91 799.00000 779.88320 2.39% - 1s 0 0 780.23659 0 89 799.00000 780.23659 2.35% - 1s 0 0 780.25639 0 96 799.00000 780.25639 2.35% - 1s 0 0 780.29243 0 97 799.00000 780.29243 2.34% - 1s 0 0 780.31063 0 101 799.00000 780.31063 2.34% - 1s 0 0 780.32416 0 97 799.00000 780.32416 2.34% - 1s 0 0 780.32553 0 96 799.00000 780.32553 2.34% - 1s 0 0 780.34192 0 94 799.00000 780.34192 2.34% - 1s 0 0 780.34709 0 98 799.00000 780.34709 2.33% - 1s 0 0 780.34709 0 98 799.00000 780.34709 2.33% - 1s H 0 0 793.0000000 780.34709 1.60% - 1s H 0 0 791.0000000 780.34709 1.35% - 2s 0 2 780.35420 0 98 791.00000 780.35420 1.35% - 2s * 44 36 37 790.0000000 781.16730 1.12% 19.5 2s * 283 163 13 789.0000000 782.41308 0.83% 18.6 3s 649 340 784.22595 18 78 789.00000 783.13095 0.74% 18.2 5s 3658 973 786.37500 24 74 789.00000 785.00000 0.51% 16.4 10s 7269 1175 cutoff 28 789.00000 785.87325 0.40% 15.5 15s 10724 729 787.32963 28 80 789.00000 786.63333 0.30% 15.1 20s Cutting planes: Gomory: 5 MIR: 1 Zero half: 8 Explored 12518 nodes (183564 simplex iterations) in 21.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (3, 63), (3, 75), (4, 17), (4, 45), (10, 26), (10, 40), (13, 73), (17, 64), (19, 25), (19, 51), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 75), (32, 40), (32, 73), (33, 41), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74)] adding cut for [(48, 49), (22, 48), (22, 62), (6, 38), (6, 16), (30, 46), (30, 49), (14, 55), (14, 58), (16, 58), (8, 54), (20, 54), (20, 55), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(39, 66), (11, 39), (11, 59), (12, 66), (12, 67), (15, 36), (15, 60), (60, 67)] Optimize a model with 363 rows, 2850 columns and 97158 nonzeros Presolve time: 0.07s Presolved: 363 rows, 2850 columns, 97158 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 792.0000000 779.58313 1.57% - 0s 0 0 779.79635 0 83 792.00000 779.79635 1.54% - 0s 0 0 779.79635 0 90 792.00000 779.79635 1.54% - 0s 0 0 779.79635 0 85 792.00000 779.79635 1.54% - 0s 0 0 779.88206 0 92 792.00000 779.88206 1.53% - 0s 0 0 780.24032 0 91 792.00000 780.24032 1.48% - 0s 0 0 780.25036 0 93 792.00000 780.25036 1.48% - 0s 0 0 780.29100 0 96 792.00000 780.29100 1.48% - 0s 0 0 780.31344 0 95 792.00000 780.31344 1.48% - 0s 0 0 780.33531 0 96 792.00000 780.33531 1.47% - 0s 0 0 780.33816 0 97 792.00000 780.33816 1.47% - 1s 0 0 780.35168 0 96 792.00000 780.35168 1.47% - 1s 0 0 780.35726 0 99 792.00000 780.35726 1.47% - 1s 0 0 780.35943 0 103 792.00000 780.35943 1.47% - 1s 0 0 780.35943 0 103 792.00000 780.35943 1.47% - 1s 0 2 780.36645 0 103 792.00000 780.36645 1.47% - 1s * 1349 590 46 790.0000000 782.93585 0.89% 18.9 4s 1455 622 785.29032 28 67 790.00000 783.03445 0.88% 18.8 5s 4189 1845 787.66284 30 85 790.00000 784.29609 0.72% 17.1 10s * 4779 1856 35 789.0000000 784.46654 0.57% 17.0 10s 6205 2155 784.54856 36 82 789.00000 784.51255 0.57% 17.2 15s 9298 2295 787.68116 40 69 789.00000 784.68892 0.55% 16.4 20s 12886 2651 787.17460 37 73 789.00000 785.30709 0.47% 15.8 25s 17152 3001 787.97080 38 67 789.00000 785.81635 0.40% 15.3 30s 21447 2789 787.57692 41 66 789.00000 786.25000 0.35% 14.9 35s 26824 1904 787.81818 37 77 789.00000 786.79354 0.28% 14.3 40s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Explored 30711 nodes (419554 simplex iterations) in 43.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (9, 36), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (15, 36), (15, 60), (17, 64), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (32, 40), (35, 53), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74), (66, 67)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 58), (61, 71), (61, 72), (8, 54), (20, 54), (20, 55), (21, 71), (21, 38), (22, 48), (22, 62), (29, 75), (29, 62)] Optimize a model with 365 rows, 2850 columns and 97844 nonzeros Presolve time: 0.07s Presolved: 365 rows, 2850 columns, 97844 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 238 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 789.0000000 779.58313 1.19% - 0s 0 0 779.79635 0 83 789.00000 779.79635 1.17% - 0s 0 0 779.79635 0 90 789.00000 779.79635 1.17% - 0s 0 0 779.79635 0 85 789.00000 779.79635 1.17% - 0s 0 0 779.88359 0 89 789.00000 779.88359 1.16% - 0s 0 0 780.23804 0 89 789.00000 780.23804 1.11% - 0s 0 0 780.27415 0 92 789.00000 780.27415 1.11% - 0s 0 0 780.28826 0 97 789.00000 780.28826 1.10% - 0s 0 0 780.29994 0 97 789.00000 780.29994 1.10% - 0s 0 0 780.30444 0 97 789.00000 780.30444 1.10% - 0s 0 0 780.31857 0 98 789.00000 780.31857 1.10% - 0s 0 0 780.31857 0 98 789.00000 780.31857 1.10% - 1s 0 2 780.33199 0 98 789.00000 780.33199 1.10% - 1s 1079 353 783.60440 21 92 789.00000 783.44560 0.70% 17.9 5s 4139 876 787.60000 27 67 789.00000 785.10340 0.49% 15.9 10s 7713 990 787.09824 26 81 789.00000 786.00382 0.38% 15.2 15s Cutting planes: Gomory: 6 MIR: 1 Zero half: 5 Explored 11789 nodes (170024 simplex iterations) in 19.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (4, 45), (4, 17), (33, 51), (33, 41), (41, 45), (43, 65), (43, 44), (34, 64), (19, 51), (19, 25), (25, 50), (23, 65), (23, 63), (24, 50), (24, 57), (42, 44), (42, 57), (63, 74)] adding cut for [(16, 58), (16, 38), (3, 75), (37, 70), (37, 48), (70, 72), (14, 55), (14, 58), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (29, 75), (29, 62), (53, 55)] adding cut for [(32, 56), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (26, 56), (59, 73), (60, 67)] Optimize a model with 368 rows, 2850 columns and 98312 nonzeros Presolve time: 0.07s Presolved: 368 rows, 2850 columns, 98312 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795831e+02, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58313 0 90 2525.00000 779.58313 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58313 2.43% - 0s 0 0 779.79635 0 83 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 90 799.00000 779.79635 2.40% - 0s 0 0 779.79635 0 85 799.00000 779.79635 2.40% - 0s 0 0 779.88206 0 90 799.00000 779.88206 2.39% - 0s 0 0 780.24032 0 91 799.00000 780.24032 2.35% - 0s 0 0 780.25676 0 94 799.00000 780.25676 2.35% - 1s 0 0 780.27797 0 95 799.00000 780.27797 2.34% - 1s 0 0 780.28252 0 97 799.00000 780.28252 2.34% - 1s 0 0 780.29635 0 98 799.00000 780.29635 2.34% - 1s 0 0 780.29635 0 98 799.00000 780.29635 2.34% - 1s 0 2 780.31226 0 98 799.00000 780.31226 2.34% - 1s * 153 98 52 794.0000000 781.25035 1.61% 16.3 2s * 369 187 24 791.0000000 781.97865 1.14% 17.1 2s * 452 200 21 790.0000000 782.07109 1.00% 16.8 2s 761 324 789.00000 32 56 790.00000 782.50000 0.95% 18.1 5s * 2395 728 34 789.0000000 784.09938 0.62% 17.0 7s 3672 1020 785.05222 22 79 789.00000 784.66551 0.55% 16.8 10s 6946 1292 787.94340 35 60 789.00000 785.62500 0.43% 16.3 15s 10360 962 787.89474 27 65 789.00000 786.40426 0.33% 15.9 20s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Explored 12937 nodes (196137 simplex iterations) in 22.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 54), (9, 36), (9, 53), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 55), (14, 58), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 49), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (28, 53), (29, 62), (29, 75), (32, 40), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (50, 64), (51, 56), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 369 rows, 2850 columns and 99488 nonzeros Presolve time: 0.08s Presolved: 369 rows, 2850 columns, 99488 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.58833 2.06% - 0s 0 0 779.89381 0 91 796.00000 779.89381 2.02% - 0s 0 0 779.89381 0 91 796.00000 779.89381 2.02% - 0s 0 0 779.96175 0 87 796.00000 779.96175 2.01% - 0s 0 0 780.13388 0 93 796.00000 780.13388 1.99% - 0s 0 0 780.18561 0 97 796.00000 780.18561 1.99% - 0s 0 0 780.20256 0 93 796.00000 780.20256 1.98% - 0s 0 0 780.25856 0 96 796.00000 780.25856 1.98% - 1s 0 0 780.25856 0 97 796.00000 780.25856 1.98% - 1s 0 0 780.26358 0 97 796.00000 780.26358 1.98% - 1s 0 0 780.30236 0 100 796.00000 780.30236 1.97% - 1s 0 0 780.30683 0 100 796.00000 780.30683 1.97% - 1s 0 0 780.31333 0 102 796.00000 780.31333 1.97% - 1s 0 0 780.31750 0 100 796.00000 780.31750 1.97% - 1s 0 0 780.31750 0 100 796.00000 780.31750 1.97% - 1s 0 2 780.32006 0 100 796.00000 780.32006 1.97% - 1s * 419 345 51 795.0000000 780.69003 1.80% 15.5 2s H 600 418 793.0000000 781.09906 1.50% 16.1 2s 616 427 784.59259 10 98 793.00000 781.09906 1.50% 15.7 5s * 767 462 52 792.0000000 781.24902 1.36% 17.6 5s H 779 420 791.0000000 781.91887 1.15% 17.4 5s H 872 426 790.0000000 781.94406 1.02% 18.0 6s H 1381 526 789.0000000 782.29599 0.85% 19.4 8s 1941 618 784.53755 40 76 789.00000 783.30673 0.72% 19.1 10s 4575 1426 785.08038 41 89 789.00000 784.70899 0.54% 17.4 15s 7457 1979 787.26563 47 73 789.00000 785.36120 0.46% 16.7 20s 10498 2238 787.40000 49 47 789.00000 785.76271 0.41% 16.2 25s 14010 2176 cutoff 43 789.00000 786.15671 0.36% 15.8 30s 18641 1377 787.42513 43 69 789.00000 786.77778 0.28% 15.2 35s Cutting planes: Gomory: 5 MIR: 2 Zero half: 12 Explored 21565 nodes (314287 simplex iterations) in 37.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (43, 65), (43, 44), (39, 66), (42, 44), (42, 57), (11, 39), (11, 59), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (23, 65), (23, 29), (31, 75)] adding cut for [(48, 49), (6, 38), (6, 16), (30, 46), (30, 49), (14, 58), (14, 28), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(8, 54), (9, 53), (12, 67), (12, 54), (15, 36), (15, 60), (20, 36), (20, 55), (53, 55), (60, 67)] Optimize a model with 372 rows, 2850 columns and 99906 nonzeros Presolve time: 0.07s Presolved: 372 rows, 2850 columns, 99906 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 792.0000000 779.58833 1.57% - 0s 0 0 779.89381 0 91 792.00000 779.89381 1.53% - 0s 0 0 779.89381 0 91 792.00000 779.89381 1.53% - 0s 0 0 779.96175 0 89 792.00000 779.96175 1.52% - 0s 0 0 780.14114 0 91 792.00000 780.14114 1.50% - 1s 0 0 780.17155 0 92 792.00000 780.17155 1.49% - 1s 0 0 780.23655 0 95 792.00000 780.23655 1.49% - 1s 0 0 780.25572 0 96 792.00000 780.25572 1.48% - 1s 0 0 780.25695 0 98 792.00000 780.25695 1.48% - 1s 0 0 780.26176 0 97 792.00000 780.26176 1.48% - 1s 0 0 780.26176 0 98 792.00000 780.26176 1.48% - 1s 0 0 780.27574 0 98 792.00000 780.27574 1.48% - 1s 0 0 780.27574 0 99 792.00000 780.27574 1.48% - 1s 0 0 780.27835 0 97 792.00000 780.27835 1.48% - 1s 0 0 780.27850 0 98 792.00000 780.27850 1.48% - 1s 0 0 780.29304 0 102 792.00000 780.29304 1.48% - 1s 0 0 780.29416 0 102 792.00000 780.29416 1.48% - 1s 0 0 780.30147 0 106 792.00000 780.30147 1.48% - 1s 0 0 780.31327 0 103 792.00000 780.31327 1.48% - 1s 0 0 780.32116 0 104 792.00000 780.32116 1.47% - 1s 0 0 780.32122 0 104 792.00000 780.32122 1.47% - 1s 0 0 780.32122 0 104 792.00000 780.32122 1.47% - 1s 0 2 780.32558 0 104 792.00000 780.32558 1.47% - 1s H 733 489 791.0000000 781.92092 1.15% 17.4 4s H 968 533 790.0000000 782.20406 0.99% 18.5 4s 1140 571 783.13055 17 80 790.00000 782.53362 0.95% 18.3 5s H 2704 1030 789.0000000 783.68075 0.67% 17.2 7s 3417 1255 786.73457 40 73 789.00000 783.70248 0.67% 17.9 10s 6328 1253 785.52288 32 84 789.00000 784.92777 0.52% 17.0 15s 9328 1722 786.72727 37 59 789.00000 785.59003 0.43% 16.5 20s 12835 1913 787.65831 34 69 789.00000 786.10667 0.37% 15.9 25s 17046 1182 cutoff 40 789.00000 786.84686 0.27% 15.4 30s Cutting planes: Gomory: 2 MIR: 2 Zero half: 13 Explored 19049 nodes (284612 simplex iterations) in 32.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (8, 54), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (34, 64), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (66, 67)] adding cut for [(16, 58), (16, 38), (37, 48), (37, 70), (6, 49), (6, 30), (14, 28), (14, 58), (21, 71), (21, 38), (22, 48), (22, 49), (70, 72), (61, 71), (61, 72), (30, 46)] Optimize a model with 374 rows, 2850 columns and 100295 nonzeros Presolve time: 0.07s Presolved: 374 rows, 2850 columns, 100295 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 798.0000000 779.58833 2.31% - 0s 0 0 779.89381 0 91 798.00000 779.89381 2.27% - 0s 0 0 779.89381 0 91 798.00000 779.89381 2.27% - 0s 0 0 779.96175 0 87 798.00000 779.96175 2.26% - 0s 0 0 780.13388 0 93 798.00000 780.13388 2.24% - 0s 0 0 780.18561 0 97 798.00000 780.18561 2.23% - 0s 0 0 780.20256 0 93 798.00000 780.20256 2.23% - 1s 0 0 780.25856 0 96 798.00000 780.25856 2.22% - 1s 0 0 780.25856 0 98 798.00000 780.25856 2.22% - 1s 0 0 780.29673 0 98 798.00000 780.29673 2.22% - 1s 0 0 780.31363 0 102 798.00000 780.31363 2.22% - 1s 0 0 780.32327 0 99 798.00000 780.32327 2.22% - 1s 0 0 780.32402 0 103 798.00000 780.32402 2.22% - 1s 0 0 780.32504 0 102 798.00000 780.32504 2.21% - 1s 0 0 780.32657 0 104 798.00000 780.32657 2.21% - 1s 0 0 780.32657 0 104 798.00000 780.32657 2.21% - 1s 0 2 780.32680 0 104 798.00000 780.32680 2.21% - 1s H 27 27 796.0000000 780.41495 1.96% 22.0 1s H 487 385 795.0000000 780.92444 1.77% 17.8 3s * 531 358 49 793.0000000 780.92444 1.52% 17.5 3s H 700 366 791.0000000 781.47858 1.20% 17.2 3s 730 388 784.24875 19 76 791.00000 781.47858 1.20% 17.8 5s * 1048 472 51 790.0000000 781.85236 1.03% 19.3 6s * 1103 427 40 789.0000000 781.89416 0.90% 19.4 6s 3178 1104 787.83333 33 64 789.00000 784.35484 0.59% 17.2 10s 6243 1986 786.92857 26 67 789.00000 785.10587 0.49% 15.9 15s 9303 2494 787.25850 26 76 789.00000 785.59638 0.43% 15.4 20s 12965 2632 787.84375 25 92 789.00000 786.03409 0.38% 15.2 25s 17198 2164 cutoff 25 789.00000 786.54545 0.31% 14.8 30s Cutting planes: Gomory: 8 MIR: 1 Zero half: 4 Mod-K: 2 Explored 22377 nodes (312020 simplex iterations) in 34.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 44), (4, 45), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (19, 25), (19, 51), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (24, 50), (24, 57), (25, 50), (28, 58), (29, 62), (29, 75), (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), (39, 59), (40, 41), (10, 40), (10, 26), (11, 32), (11, 39), (13, 73), (26, 56), (59, 73)] adding cut for [(66, 67), (8, 54), (9, 15), (9, 53), (12, 66), (12, 54), (15, 60), (60, 67)] Optimize a model with 377 rows, 2850 columns and 100981 nonzeros Presolve time: 0.08s Presolved: 377 rows, 2850 columns, 100981 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.96175 0 87 799.00000 779.96175 2.38% - 1s 0 0 780.13388 0 93 799.00000 780.13388 2.36% - 1s 0 0 780.18561 0 97 799.00000 780.18561 2.35% - 1s 0 0 780.20256 0 93 799.00000 780.20256 2.35% - 1s 0 0 780.25856 0 96 799.00000 780.25856 2.35% - 1s 0 0 780.25856 0 98 799.00000 780.25856 2.35% - 1s 0 0 780.29673 0 98 799.00000 780.29673 2.34% - 1s 0 0 780.31363 0 102 799.00000 780.31363 2.34% - 1s 0 0 780.32327 0 99 799.00000 780.32327 2.34% - 1s 0 0 780.32418 0 102 799.00000 780.32418 2.34% - 1s 0 0 780.34913 0 100 799.00000 780.34913 2.33% - 1s 0 0 780.35256 0 105 799.00000 780.35256 2.33% - 1s 0 0 780.35256 0 104 799.00000 780.35256 2.33% - 1s 0 2 780.35324 0 104 799.00000 780.35324 2.33% - 1s * 187 160 63 798.0000000 780.70356 2.17% 19.3 2s H 231 170 795.0000000 780.85496 1.78% 19.1 2s * 232 148 35 793.0000000 780.85496 1.53% 19.2 2s * 328 144 22 789.0000000 781.10652 1.00% 19.7 2s 1317 442 786.07006 19 66 789.00000 783.25843 0.73% 20.0 5s 4363 1387 786.67568 19 68 789.00000 784.78372 0.53% 17.6 10s 7542 1908 786.73899 24 74 789.00000 785.43750 0.45% 16.7 15s 10664 2079 787.08496 21 74 789.00000 785.92248 0.39% 16.2 20s 14624 1734 787.80556 23 66 789.00000 786.46993 0.32% 15.7 25s Cutting planes: Gomory: 2 MIR: 2 Zero half: 10 Explored 18638 nodes (278118 simplex iterations) in 29.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (11, 32), (11, 39), (12, 60), (12, 67), (14, 53), (14, 55), (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), (55, 60), (66, 67)] adding cut for [(34, 74), (70, 72), (29, 75), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 63), (23, 62), (63, 74), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 379 rows, 2850 columns and 101477 nonzeros Presolve time: 0.08s Presolved: 379 rows, 2850 columns, 101477 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.58833 2.18% - 0s 0 0 779.89381 0 91 797.00000 779.89381 2.15% - 0s 0 0 779.89381 0 91 797.00000 779.89381 2.15% - 0s 0 0 779.96175 0 87 797.00000 779.96175 2.14% - 0s 0 0 780.13388 0 93 797.00000 780.13388 2.12% - 0s 0 0 780.18561 0 97 797.00000 780.18561 2.11% - 1s 0 0 780.20256 0 93 797.00000 780.20256 2.11% - 1s 0 0 780.25856 0 96 797.00000 780.25856 2.10% - 1s 0 0 780.25856 0 98 797.00000 780.25856 2.10% - 1s 0 0 780.29673 0 98 797.00000 780.29673 2.10% - 1s 0 0 780.31363 0 102 797.00000 780.31363 2.09% - 1s 0 0 780.32327 0 99 797.00000 780.32327 2.09% - 1s 0 0 780.32418 0 102 797.00000 780.32418 2.09% - 1s 0 0 780.34913 0 100 797.00000 780.34913 2.09% - 1s 0 0 780.35256 0 105 797.00000 780.35256 2.09% - 1s 0 0 780.35256 0 104 797.00000 780.35256 2.09% - 1s 0 2 780.35324 0 104 797.00000 780.35324 2.09% - 1s H 54 54 796.0000000 780.35629 1.97% 20.9 2s H 122 79 792.0000000 780.37361 1.47% 19.5 2s H 600 390 791.0000000 781.64011 1.18% 16.5 3s 732 463 788.68683 37 68 791.00000 781.64011 1.18% 18.3 5s * 1489 625 40 790.0000000 783.24390 0.86% 18.7 6s 3244 1426 786.14313 24 83 790.00000 784.28000 0.72% 17.8 10s * 3755 1455 37 789.0000000 784.40202 0.58% 17.6 10s 6056 2126 cutoff 26 789.00000 785.00000 0.51% 17.1 15s 8720 2610 786.65625 23 63 789.00000 785.42804 0.45% 16.6 20s 11915 2867 786.71062 20 69 789.00000 785.81541 0.40% 16.2 25s 15749 2810 787.63469 20 78 789.00000 786.26154 0.35% 15.8 30s 19382 2235 cutoff 27 789.00000 786.63158 0.30% 15.3 35s Cutting planes: Gomory: 6 MIR: 3 Zero half: 8 Explored 24316 nodes (353002 simplex iterations) in 39.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 49), (6, 58), (10, 33), (10, 40), (11, 32), (11, 39), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 56), (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, 63), (29, 75), (32, 40), (33, 51), (34, 64), (34, 74), (37, 70), (37, 72), (39, 66), (42, 43), (42, 44), (43, 65), (48, 49), (50, 57), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 380 rows, 2850 columns and 102752 nonzeros Presolve time: 0.07s Presolved: 380 rows, 2850 columns, 102752 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 805.0000000 779.58833 3.16% - 0s H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.96175 0 87 799.00000 779.96175 2.38% - 1s 0 0 780.13388 0 93 799.00000 780.13388 2.36% - 1s 0 0 780.18561 0 97 799.00000 780.18561 2.35% - 1s 0 0 780.20256 0 93 799.00000 780.20256 2.35% - 1s 0 0 780.25856 0 96 799.00000 780.25856 2.35% - 1s 0 0 780.25856 0 98 799.00000 780.25856 2.35% - 1s 0 0 780.29673 0 98 799.00000 780.29673 2.34% - 1s 0 0 780.31363 0 102 799.00000 780.31363 2.34% - 1s 0 0 780.32327 0 99 799.00000 780.32327 2.34% - 1s 0 0 780.32418 0 102 799.00000 780.32418 2.34% - 1s 0 0 780.34913 0 100 799.00000 780.34913 2.33% - 1s 0 0 780.35256 0 105 799.00000 780.35256 2.33% - 1s 0 0 780.35256 0 104 799.00000 780.35256 2.33% - 1s 0 2 780.35324 0 104 799.00000 780.35324 2.33% - 1s * 96 89 58 797.0000000 780.35629 2.09% 20.2 2s * 363 303 53 796.0000000 780.66626 1.93% 17.4 2s * 423 233 35 792.0000000 780.70717 1.43% 17.5 2s * 485 248 32 791.0000000 780.73541 1.30% 17.5 2s 786 380 783.20510 19 90 791.00000 781.87218 1.15% 19.3 5s H 944 418 790.0000000 782.25617 0.98% 19.5 5s * 1083 389 30 789.0000000 782.45833 0.83% 19.2 5s 3486 1150 786.45833 19 70 789.00000 784.53901 0.57% 16.8 10s 6338 1808 786.84375 28 79 789.00000 785.27778 0.47% 15.9 15s 9353 2236 787.51613 29 70 789.00000 785.75000 0.41% 15.3 20s 13238 2341 787.36364 29 69 789.00000 786.22156 0.35% 14.8 25s 16901 1996 787.41447 29 66 789.00000 786.62963 0.30% 14.4 30s 22270 247 cutoff 33 789.00000 787.54731 0.18% 13.6 35s Cutting planes: Gomory: 8 MIR: 2 Zero half: 7 Explored 22593 nodes (305342 simplex iterations) in 35.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (9, 20), (11, 39), (11, 59), (12, 54), (12, 67), (15, 36), (15, 60), (17, 64), (19, 25), (19, 51), (20, 55), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (36, 54), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (55, 60), (59, 73), (66, 67)] adding cut for [(6, 16), (6, 38), (14, 28), (14, 53), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (34, 74), (35, 53), (37, 48), (37, 70), (61, 71), (61, 72), (63, 74), (70, 72)] Optimize a model with 382 rows, 2850 columns and 103440 nonzeros Presolve time: 0.07s Presolved: 382 rows, 2850 columns, 103440 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 803.0000000 779.58833 2.92% - 0s H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.96175 0 87 799.00000 779.96175 2.38% - 1s 0 0 780.13388 0 93 799.00000 780.13388 2.36% - 1s 0 0 780.18561 0 97 799.00000 780.18561 2.35% - 1s 0 0 780.20256 0 93 799.00000 780.20256 2.35% - 1s 0 0 780.25856 0 96 799.00000 780.25856 2.35% - 1s 0 0 780.25856 0 98 799.00000 780.25856 2.35% - 1s 0 0 780.29673 0 98 799.00000 780.29673 2.34% - 1s 0 0 780.31363 0 102 799.00000 780.31363 2.34% - 1s 0 0 780.32327 0 99 799.00000 780.32327 2.34% - 1s 0 0 780.32418 0 102 799.00000 780.32418 2.34% - 1s 0 0 780.34913 0 100 799.00000 780.34913 2.33% - 1s 0 0 780.35256 0 105 799.00000 780.35256 2.33% - 1s 0 0 780.35256 0 104 799.00000 780.35256 2.33% - 1s 0 2 780.35324 0 104 799.00000 780.35324 2.33% - 1s * 96 89 58 797.0000000 780.35629 2.09% 20.2 2s H 139 120 795.0000000 780.41807 1.83% 19.6 2s * 232 183 41 794.0000000 780.46226 1.71% 18.3 2s * 239 165 44 793.0000000 780.46226 1.58% 17.8 2s * 281 149 16 790.0000000 780.66626 1.18% 18.9 3s 613 312 784.48193 15 106 790.00000 781.67247 1.05% 18.2 5s * 2134 771 39 789.0000000 783.82861 0.66% 19.1 8s 2888 1036 786.65837 22 78 789.00000 784.29504 0.60% 18.4 10s 5727 1710 786.13208 25 78 789.00000 785.04724 0.50% 17.3 15s 8712 2178 787.56897 22 61 789.00000 785.58037 0.43% 16.6 20s 12172 2384 787.92174 25 82 789.00000 786.03125 0.38% 15.9 25s 16134 2134 787.34722 26 71 789.00000 786.47170 0.32% 15.4 30s 21194 973 787.52340 28 71 789.00000 787.13781 0.24% 14.6 35s Cutting planes: Gomory: 7 MIR: 3 Zero half: 4 Mod-K: 1 Explored 22761 nodes (322780 simplex iterations) in 36.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (15, 36), (15, 60), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (12, 54), (14, 55), (14, 58), (16, 58), (8, 12), (20, 54), (20, 55), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (30, 49), (30, 46), (37, 48), (37, 70)] Optimize a model with 384 rows, 2850 columns and 103955 nonzeros Presolve time: 0.07s Presolved: 384 rows, 2850 columns, 103955 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 251 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.58833 1.94% - 0s 0 0 779.89381 0 91 795.00000 779.89381 1.90% - 0s 0 0 779.89381 0 91 795.00000 779.89381 1.90% - 0s 0 0 779.96175 0 87 795.00000 779.96175 1.89% - 0s 0 0 780.13388 0 93 795.00000 780.13388 1.87% - 0s 0 0 780.18561 0 97 795.00000 780.18561 1.86% - 0s 0 0 780.20256 0 93 795.00000 780.20256 1.86% - 1s 0 0 780.25856 0 96 795.00000 780.25856 1.85% - 1s 0 0 780.25856 0 97 795.00000 780.25856 1.85% - 1s 0 0 780.26358 0 97 795.00000 780.26358 1.85% - 1s 0 0 780.30236 0 100 795.00000 780.30236 1.85% - 1s 0 0 780.30683 0 100 795.00000 780.30683 1.85% - 1s 0 0 780.31373 0 100 795.00000 780.31373 1.85% - 1s 0 0 780.31770 0 103 795.00000 780.31770 1.85% - 1s 0 0 780.31933 0 104 795.00000 780.31933 1.85% - 1s 0 0 780.32838 0 92 795.00000 780.32838 1.85% - 1s 0 2 780.33890 0 92 795.00000 780.33890 1.84% - 2s * 40 27 32 789.0000000 781.20917 0.99% 18.7 2s 725 310 785.25329 26 75 789.00000 783.16177 0.74% 19.4 5s 3631 766 786.35714 23 82 789.00000 785.08068 0.50% 17.0 10s 7181 880 787.37821 32 67 789.00000 785.97594 0.38% 16.1 15s 10795 192 787.27198 28 63 789.00000 787.21127 0.23% 15.4 20s Cutting planes: Gomory: 2 MIR: 2 Zero half: 8 Explored 11121 nodes (170035 simplex iterations) in 20.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (30, 46), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (9, 36), (9, 47), (11, 32), (11, 39), (34, 64), (15, 36), (15, 60), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (60, 67)] Optimize a model with 386 rows, 2850 columns and 104398 nonzeros Presolve time: 0.08s Presolved: 386 rows, 2850 columns, 104398 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 800.0000000 779.58833 2.55% - 0s H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.96175 0 87 799.00000 779.96175 2.38% - 0s 0 0 780.13388 0 93 799.00000 780.13388 2.36% - 0s 0 0 780.18561 0 97 799.00000 780.18561 2.35% - 1s 0 0 780.20256 0 93 799.00000 780.20256 2.35% - 1s 0 0 780.25856 0 96 799.00000 780.25856 2.35% - 1s 0 0 780.25856 0 98 799.00000 780.25856 2.35% - 1s 0 0 780.29673 0 98 799.00000 780.29673 2.34% - 1s 0 0 780.31363 0 102 799.00000 780.31363 2.34% - 1s 0 0 780.32327 0 99 799.00000 780.32327 2.34% - 1s 0 0 780.32418 0 102 799.00000 780.32418 2.34% - 1s 0 0 780.34913 0 97 799.00000 780.34913 2.33% - 1s 0 0 780.35051 0 102 799.00000 780.35051 2.33% - 1s 0 0 780.35344 0 103 799.00000 780.35344 2.33% - 1s 0 0 780.35344 0 103 799.00000 780.35344 2.33% - 1s 0 2 780.35344 0 103 799.00000 780.35344 2.33% - 1s H 124 115 794.0000000 780.46226 1.71% 14.6 2s * 193 164 47 793.0000000 780.48317 1.58% 15.5 2s H 600 397 791.0000000 780.97937 1.27% 16.7 3s 613 403 780.97937 10 101 791.00000 780.97937 1.27% 17.1 5s * 1146 532 40 790.0000000 782.41792 0.96% 18.9 6s * 1416 476 28 789.0000000 782.90588 0.77% 18.5 7s 2861 1003 787.09766 22 77 789.00000 783.96000 0.64% 17.5 10s 5369 1676 787.27859 22 64 789.00000 784.86811 0.52% 16.7 15s 7905 2158 786.35714 23 72 789.00000 785.37079 0.46% 16.2 20s 10689 2446 786.96429 23 53 789.00000 785.77401 0.41% 15.7 25s 13879 2400 787.81333 23 81 789.00000 786.12993 0.36% 15.4 30s 18014 2020 787.94896 19 76 789.00000 786.58789 0.31% 14.9 35s 22541 509 cutoff 27 789.00000 787.33842 0.21% 14.2 40s Cutting planes: Gomory: 11 MIR: 6 Zero half: 13 Explored 23259 nodes (326201 simplex iterations) in 40.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 55), (17, 50), (19, 51), (19, 56), (20, 54), (20, 55), (25, 50), (26, 32), (26, 56), (28, 53), (33, 45), (33, 51), (39, 66), (66, 67)] adding cut for [(48, 49), (6, 16), (6, 30), (38, 58), (31, 49), (62, 70), (29, 75), (29, 63), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (61, 71), (61, 72), (30, 46), (37, 72), (37, 70)] adding cut for [(2, 74), (2, 44), (3, 74), (43, 65), (43, 44), (34, 64), (24, 64), (24, 57), (42, 65), (42, 57)] Optimize a model with 389 rows, 2850 columns and 104894 nonzeros Presolve time: 0.08s Presolved: 389 rows, 2850 columns, 104894 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 810.0000000 779.58833 3.75% - 0s H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.96175 0 87 799.00000 779.96175 2.38% - 0s 0 0 780.13388 0 93 799.00000 780.13388 2.36% - 1s 0 0 780.18561 0 97 799.00000 780.18561 2.35% - 1s 0 0 780.20256 0 93 799.00000 780.20256 2.35% - 1s 0 0 780.25856 0 96 799.00000 780.25856 2.35% - 1s 0 0 780.25856 0 98 799.00000 780.25856 2.35% - 1s 0 0 780.29673 0 98 799.00000 780.29673 2.34% - 1s 0 0 780.31363 0 102 799.00000 780.31363 2.34% - 1s 0 0 780.32327 0 99 799.00000 780.32327 2.34% - 1s 0 0 780.32373 0 102 799.00000 780.32373 2.34% - 1s 0 0 780.33209 0 97 799.00000 780.33209 2.34% - 1s 0 0 780.33220 0 100 799.00000 780.33220 2.34% - 1s 0 0 780.33585 0 99 799.00000 780.33585 2.34% - 1s 0 0 780.33585 0 101 799.00000 780.33585 2.34% - 1s 0 0 780.33593 0 103 799.00000 780.33593 2.34% - 1s 0 2 780.33602 0 103 799.00000 780.33602 2.34% - 1s * 122 103 81 795.0000000 780.38569 1.84% 16.4 2s * 214 146 70 791.0000000 780.41495 1.34% 15.5 2s 614 425 784.76553 11 98 791.00000 781.38742 1.22% 16.2 5s * 1197 557 41 790.0000000 782.88689 0.90% 17.7 7s 2498 951 785.29213 22 78 790.00000 784.00232 0.76% 16.8 10s H 2602 867 789.0000000 784.07207 0.62% 16.8 10s 5579 1479 785.91899 23 69 789.00000 785.31747 0.47% 15.9 15s 8565 1442 787.46154 24 68 789.00000 786.03015 0.38% 15.5 20s 12488 673 787.84462 28 67 789.00000 786.98421 0.26% 14.9 25s Cutting planes: Gomory: 9 MIR: 2 Zero half: 5 Explored 13601 nodes (197416 simplex iterations) in 26.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (8, 15), (10, 33), (10, 40), (12, 54), (12, 66), (13, 40), (14, 28), (14, 55), (15, 60), (16, 58), (19, 25), (19, 56), (20, 54), (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), (33, 51), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(32, 73), (11, 32), (11, 39), (59, 73), (39, 59)] Optimize a model with 391 rows, 2850 columns and 105807 nonzeros Presolve time: 0.08s Presolved: 391 rows, 2850 columns, 105807 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 257 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.94570 0 91 799.00000 779.94570 2.38% - 1s 0 0 780.10472 0 92 799.00000 780.10472 2.36% - 1s 0 0 780.12743 0 91 799.00000 780.12743 2.36% - 1s 0 0 780.17984 0 95 799.00000 780.17984 2.36% - 1s 0 0 780.21162 0 98 799.00000 780.21162 2.35% - 1s 0 0 780.24270 0 95 799.00000 780.24270 2.35% - 1s 0 0 780.24341 0 97 799.00000 780.24341 2.35% - 1s 0 0 780.26680 0 96 799.00000 780.26680 2.34% - 1s 0 0 780.27236 0 99 799.00000 780.27236 2.34% - 1s 0 0 780.28169 0 99 799.00000 780.28169 2.34% - 1s 0 0 780.29343 0 97 799.00000 780.29343 2.34% - 1s 0 0 780.31348 0 101 799.00000 780.31348 2.34% - 1s 0 0 780.31767 0 102 799.00000 780.31767 2.34% - 1s 0 0 780.33673 0 91 799.00000 780.33673 2.34% - 1s 0 0 780.35374 0 101 799.00000 780.35374 2.33% - 1s 0 0 780.35377 0 103 799.00000 780.35377 2.33% - 1s 0 0 780.36572 0 101 799.00000 780.36572 2.33% - 1s 0 0 780.36945 0 103 799.00000 780.36945 2.33% - 1s 0 0 780.37119 0 103 799.00000 780.37119 2.33% - 1s 0 0 780.37542 0 103 799.00000 780.37542 2.33% - 1s 0 0 780.37588 0 104 799.00000 780.37588 2.33% - 1s 0 0 780.38024 0 104 799.00000 780.38024 2.33% - 1s 0 0 780.38464 0 106 799.00000 780.38464 2.33% - 2s 0 0 780.38464 0 106 799.00000 780.38464 2.33% - 2s 0 2 780.38472 0 106 799.00000 780.38472 2.33% - 2s H 97 95 797.0000000 780.43624 2.08% 19.9 3s * 364 297 65 796.0000000 780.66592 1.93% 16.5 3s * 464 354 55 795.0000000 780.71450 1.80% 16.5 3s H 600 304 791.0000000 780.80292 1.29% 16.2 4s 610 311 790.00000 28 104 791.00000 780.80292 1.29% 15.9 5s * 833 348 53 789.0000000 781.68387 0.93% 18.4 6s 2874 1098 787.59259 31 48 789.00000 783.89784 0.65% 16.6 10s 5624 1988 787.82353 31 56 789.00000 784.68675 0.55% 15.9 15s 8409 2621 787.58889 26 77 789.00000 785.07772 0.50% 15.5 20s 11534 3100 787.94374 19 87 789.00000 785.48052 0.45% 15.2 25s 14781 3306 786.55376 27 72 789.00000 785.81623 0.40% 15.0 30s 18983 3070 787.24242 23 63 789.00000 786.23077 0.35% 14.7 35s 23347 2190 787.98305 27 74 789.00000 786.69737 0.29% 14.4 40s Cutting planes: Gomory: 7 MIR: 3 Zero half: 21 Explored 27817 nodes (379934 simplex iterations) in 44.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(33, 41), (33, 45), (4, 45), (4, 50), (51, 56), (40, 73), (10, 40), (10, 26), (13, 73), (19, 51), (19, 25), (25, 50), (26, 56)] adding cut for [(32, 66), (39, 59), (11, 32), (11, 39), (12, 66), (12, 67), (14, 53), (14, 55), (15, 54), (15, 60), (20, 54), (20, 55), (60, 67)] Optimize a model with 394 rows, 2850 columns and 106289 nonzeros Presolve time: 0.08s Presolved: 394 rows, 2850 columns, 106289 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795883e+02, 287 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58833 0 91 2525.00000 779.58833 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.58833 2.43% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.89381 0 91 799.00000 779.89381 2.39% - 0s 0 0 779.94570 0 91 799.00000 779.94570 2.38% - 1s 0 0 780.10472 0 92 799.00000 780.10472 2.36% - 1s 0 0 780.12743 0 91 799.00000 780.12743 2.36% - 1s 0 0 780.17984 0 95 799.00000 780.17984 2.36% - 1s 0 0 780.21162 0 98 799.00000 780.21162 2.35% - 1s 0 0 780.24270 0 95 799.00000 780.24270 2.35% - 1s 0 0 780.24341 0 97 799.00000 780.24341 2.35% - 1s 0 0 780.26680 0 96 799.00000 780.26680 2.34% - 1s 0 0 780.27236 0 99 799.00000 780.27236 2.34% - 1s 0 0 780.28169 0 99 799.00000 780.28169 2.34% - 1s 0 0 780.29343 0 97 799.00000 780.29343 2.34% - 1s 0 0 780.31348 0 101 799.00000 780.31348 2.34% - 1s 0 0 780.31767 0 102 799.00000 780.31767 2.34% - 1s 0 0 780.33673 0 91 799.00000 780.33673 2.34% - 1s 0 0 780.35374 0 101 799.00000 780.35374 2.33% - 1s 0 0 780.35377 0 103 799.00000 780.35377 2.33% - 1s 0 0 780.36572 0 101 799.00000 780.36572 2.33% - 1s 0 0 780.36945 0 103 799.00000 780.36945 2.33% - 1s 0 0 780.37119 0 103 799.00000 780.37119 2.33% - 1s 0 0 780.37542 0 103 799.00000 780.37542 2.33% - 2s 0 0 780.37588 0 104 799.00000 780.37588 2.33% - 2s 0 0 780.38024 0 104 799.00000 780.38024 2.33% - 2s 0 0 780.38464 0 106 799.00000 780.38464 2.33% - 2s 0 0 780.38464 0 106 799.00000 780.38464 2.33% - 2s 0 2 780.38472 0 106 799.00000 780.38472 2.33% - 2s * 237 202 67 797.0000000 780.62944 2.05% 16.9 2s * 303 191 52 794.0000000 780.72431 1.67% 16.4 2s 612 412 791.35714 35 97 794.00000 781.00886 1.64% 16.4 5s * 704 442 58 793.0000000 781.18620 1.49% 17.8 5s * 705 407 58 792.0000000 781.18620 1.37% 17.8 5s H 815 416 790.0000000 782.26247 0.98% 18.8 6s * 1358 509 58 789.0000000 782.74272 0.79% 19.1 9s 1444 517 784.54871 34 88 789.00000 783.06954 0.75% 18.9 10s 4328 1026 785.58766 35 75 789.00000 785.11538 0.49% 17.1 15s 7820 1185 787.76271 43 83 789.00000 786.02353 0.38% 16.0 20s 11637 171 787.93750 43 66 789.00000 787.48148 0.19% 15.2 25s Cutting planes: Gomory: 7 MIR: 3 Zero half: 5 Explored 11849 nodes (178979 simplex iterations) in 25.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(8, 36), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (13, 73), (14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 56), (20, 54), (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, 75), (32, 40), (33, 51), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (54, 59), (59, 73), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 395 rows, 2850 columns and 107370 nonzeros Presolve time: 0.08s Presolved: 395 rows, 2850 columns, 107370 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.795895e+02, 259 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.58954 0 93 2525.00000 779.58954 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.58954 1.94% - 0s 0 0 779.83468 0 92 795.00000 779.83468 1.91% - 0s 0 0 779.83468 0 93 795.00000 779.83468 1.91% - 0s 0 0 779.88212 0 93 795.00000 779.88212 1.90% - 0s 0 0 780.09141 0 95 795.00000 780.09141 1.88% - 0s 0 0 780.11997 0 95 795.00000 780.11997 1.87% - 0s 0 0 780.13185 0 97 795.00000 780.13185 1.87% - 1s 0 0 780.14489 0 93 795.00000 780.14489 1.87% - 1s 0 0 780.15078 0 95 795.00000 780.15078 1.87% - 1s 0 0 780.15745 0 94 795.00000 780.15745 1.87% - 1s 0 0 780.18105 0 100 795.00000 780.18105 1.86% - 1s 0 0 780.18691 0 102 795.00000 780.18691 1.86% - 1s 0 0 780.19756 0 100 795.00000 780.19756 1.86% - 1s 0 0 780.20370 0 103 795.00000 780.20370 1.86% - 1s 0 0 780.20412 0 100 795.00000 780.20412 1.86% - 1s 0 0 780.20412 0 100 795.00000 780.20412 1.86% - 1s 0 2 780.21410 0 100 795.00000 780.21410 1.86% - 1s H 129 120 794.0000000 780.67625 1.68% 18.7 1s * 164 125 49 791.0000000 780.67625 1.31% 18.8 2s * 356 242 35 790.0000000 781.30115 1.10% 19.2 2s 1408 595 cutoff 35 790.00000 783.47187 0.83% 18.8 5s * 3612 1476 35 789.0000000 784.40593 0.58% 17.3 9s 4003 1593 787.90000 34 69 789.00000 784.53099 0.57% 17.2 10s 6867 2259 786.77560 29 71 789.00000 785.18720 0.48% 16.6 15s 9703 2610 787.59877 31 72 789.00000 785.57232 0.43% 16.2 20s 13149 2825 787.27500 30 69 789.00000 785.95770 0.39% 15.9 25s 16628 2763 787.32692 31 67 789.00000 786.29147 0.34% 15.5 30s 21356 2103 cutoff 31 789.00000 786.72213 0.29% 14.9 35s Cutting planes: Gomory: 1 MIR: 2 Zero half: 10 Explored 26613 nodes (374525 simplex iterations) in 39.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(66, 67), (33, 51), (39, 66), (40, 73), (9, 47), (9, 20), (10, 33), (10, 40), (11, 32), (11, 39), (12, 67), (12, 54), (19, 51), (19, 56), (20, 54), (26, 32), (26, 56), (59, 73)] adding cut for [(2, 74), (2, 44), (3, 63), (43, 65), (29, 75), (29, 62), (48, 49), (22, 48), (22, 75), (23, 65), (23, 62), (24, 44), (24, 57), (31, 49), (42, 43), (42, 57), (63, 74)] Optimize a model with 397 rows, 2850 columns and 107694 nonzeros Presolve time: 0.08s Presolved: 397 rows, 2850 columns, 107694 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 262 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 0s 0 0 780.01691 0 90 799.00000 780.01691 2.38% - 1s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 1s 0 0 780.14867 0 87 799.00000 780.14867 2.36% - 1s 0 0 780.16066 0 92 799.00000 780.16066 2.36% - 1s 0 0 780.17234 0 93 799.00000 780.17234 2.36% - 1s 0 0 780.17794 0 96 799.00000 780.17794 2.36% - 1s 0 0 780.21176 0 98 799.00000 780.21176 2.35% - 1s 0 0 780.25944 0 101 799.00000 780.25944 2.35% - 1s 0 0 780.26348 0 100 799.00000 780.26348 2.34% - 1s 0 0 780.26637 0 103 799.00000 780.26637 2.34% - 1s 0 0 780.28579 0 99 799.00000 780.28579 2.34% - 1s 0 0 780.29368 0 100 799.00000 780.29368 2.34% - 1s 0 0 780.32530 0 94 799.00000 780.32530 2.34% - 1s 0 0 780.32623 0 99 799.00000 780.32623 2.34% - 1s 0 0 780.33094 0 99 799.00000 780.33094 2.34% - 2s 0 0 780.33630 0 97 799.00000 780.33630 2.34% - 2s 0 0 780.33914 0 98 799.00000 780.33914 2.34% - 2s 0 0 780.34454 0 99 799.00000 780.34454 2.33% - 2s 0 0 780.35191 0 101 799.00000 780.35191 2.33% - 2s 0 0 780.35494 0 103 799.00000 780.35494 2.33% - 2s 0 0 780.35639 0 104 799.00000 780.35639 2.33% - 2s 0 0 780.35686 0 107 799.00000 780.35686 2.33% - 2s 0 0 780.35686 0 107 799.00000 780.35686 2.33% - 2s 0 2 780.35838 0 107 799.00000 780.35838 2.33% - 2s * 274 217 39 797.0000000 780.69044 2.05% 17.7 2s 608 489 785.87273 19 93 797.00000 780.92070 2.02% 16.9 5s H 614 468 795.0000000 780.92070 1.77% 16.7 6s * 670 475 41 793.0000000 781.26015 1.48% 18.3 6s * 674 446 44 792.0000000 781.26015 1.36% 18.2 6s * 721 445 39 791.0000000 781.61922 1.19% 18.5 6s * 1351 615 43 790.0000000 782.52632 0.95% 20.2 9s 1421 619 783.76190 33 65 790.00000 782.82558 0.91% 20.0 10s 3804 1462 787.83616 39 61 790.00000 784.64796 0.68% 18.4 15s * 4407 1491 45 789.0000000 784.80537 0.53% 18.0 15s 6567 1900 787.53610 39 74 789.00000 785.35938 0.46% 17.3 20s 9317 2188 787.40000 51 77 789.00000 785.79573 0.41% 16.8 25s 12526 2297 787.14387 36 79 789.00000 786.20701 0.35% 16.2 30s 16027 1890 786.79934 38 88 789.00000 786.66144 0.30% 15.9 35s 19260 749 787.58725 43 73 789.00000 787.28447 0.22% 15.4 40s Cutting planes: Gomory: 10 MIR: 1 Zero half: 4 Explored 20310 nodes (305903 simplex iterations) in 40.97 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 63), (2, 74), (4, 45), (4, 52), (6, 49), (6, 58), (16, 38), (16, 58), (17, 50), (17, 64), (19, 25), (19, 56), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 63), (29, 75), (33, 45), (33, 51), (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 [(8, 36), (28, 53), (12, 67), (12, 54), (14, 28), (14, 55), (15, 36), (15, 60), (20, 54), (20, 55), (60, 67)] adding cut for [(32, 73), (39, 66), (39, 59), (40, 73), (10, 40), (10, 41), (11, 32), (11, 66)] Optimize a model with 400 rows, 2850 columns and 108537 nonzeros Presolve time: 0.08s Presolved: 400 rows, 2850 columns, 108537 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 259 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.63217 2.06% - 0s 0 0 780.01691 0 84 796.00000 780.01691 2.01% - 0s 0 0 780.01691 0 90 796.00000 780.01691 2.01% - 1s 0 0 780.01691 0 84 796.00000 780.01691 2.01% - 1s 0 0 780.14867 0 87 796.00000 780.14867 1.99% - 1s 0 0 780.16066 0 92 796.00000 780.16066 1.99% - 1s 0 0 780.17234 0 93 796.00000 780.17234 1.99% - 1s 0 0 780.17794 0 96 796.00000 780.17794 1.99% - 1s 0 0 780.21186 0 97 796.00000 780.21186 1.98% - 1s 0 0 780.22774 0 98 796.00000 780.22774 1.98% - 1s 0 0 780.22996 0 99 796.00000 780.22996 1.98% - 1s 0 0 780.23545 0 99 796.00000 780.23545 1.98% - 1s 0 0 780.25063 0 101 796.00000 780.25063 1.98% - 1s 0 0 780.25872 0 104 796.00000 780.25872 1.98% - 1s 0 0 780.26680 0 106 796.00000 780.26680 1.98% - 1s 0 0 780.29621 0 101 796.00000 780.29621 1.97% - 1s 0 0 780.31460 0 104 796.00000 780.31460 1.97% - 1s 0 0 780.33738 0 100 796.00000 780.33738 1.97% - 1s 0 0 780.35527 0 102 796.00000 780.35527 1.97% - 1s 0 0 780.35790 0 102 796.00000 780.35790 1.97% - 1s 0 0 780.36454 0 102 796.00000 780.36454 1.96% - 1s 0 2 780.36592 0 100 796.00000 780.36592 1.96% - 2s H 55 55 791.0000000 780.62174 1.31% 21.9 2s * 60 49 38 790.0000000 780.62174 1.19% 20.4 2s 1224 611 783.43504 20 79 790.00000 782.87903 0.90% 19.2 5s * 2612 1009 35 789.0000000 783.93723 0.64% 17.9 7s 3776 1426 786.07639 21 79 789.00000 784.47399 0.57% 17.6 10s 6526 2218 787.85123 23 77 789.00000 785.21875 0.48% 16.8 15s 9269 2676 cutoff 32 789.00000 785.62908 0.43% 16.4 20s 12464 2865 786.06944 23 64 789.00000 786.05508 0.37% 16.0 25s 15807 2682 cutoff 27 789.00000 786.43108 0.33% 15.7 30s 20307 1733 787.56712 24 81 789.00000 786.94769 0.26% 15.1 35s Cutting planes: Gomory: 1 MIR: 2 Zero half: 13 Explored 23281 nodes (335120 simplex iterations) in 37.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(9, 15), (9, 47), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (60, 67)] adding cut for [(6, 38), (6, 30), (70, 72), (14, 58), (14, 28), (16, 58), (16, 30), (21, 38), (21, 71), (22, 48), (22, 49), (31, 49), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 402 rows, 2850 columns and 108998 nonzeros Presolve time: 0.08s Presolved: 402 rows, 2850 columns, 108998 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.63217 1.93% - 0s 0 0 780.01691 0 84 795.00000 780.01691 1.88% - 0s 0 0 780.01691 0 90 795.00000 780.01691 1.88% - 0s 0 0 780.01691 0 84 795.00000 780.01691 1.88% - 1s 0 0 780.14867 0 87 795.00000 780.14867 1.87% - 1s 0 0 780.16066 0 92 795.00000 780.16066 1.87% - 1s 0 0 780.17234 0 93 795.00000 780.17234 1.87% - 1s 0 0 780.17920 0 96 795.00000 780.17920 1.86% - 1s 0 0 780.19883 0 94 795.00000 780.19883 1.86% - 1s 0 0 780.22165 0 98 795.00000 780.22165 1.86% - 1s 0 0 780.25965 0 100 795.00000 780.25965 1.85% - 1s 0 0 780.27242 0 100 795.00000 780.27242 1.85% - 1s 0 0 780.27605 0 99 795.00000 780.27605 1.85% - 1s 0 0 780.27816 0 101 795.00000 780.27816 1.85% - 1s 0 0 780.28541 0 104 795.00000 780.28541 1.85% - 1s 0 0 780.29999 0 100 795.00000 780.29999 1.85% - 1s 0 0 780.32474 0 104 795.00000 780.32474 1.85% - 1s 0 0 780.33641 0 103 795.00000 780.33641 1.84% - 1s 0 0 780.33808 0 104 795.00000 780.33808 1.84% - 1s 0 0 780.34751 0 103 795.00000 780.34751 1.84% - 1s 0 0 780.34939 0 104 795.00000 780.34939 1.84% - 1s 0 0 780.35109 0 107 795.00000 780.35109 1.84% - 1s 0 2 780.35191 0 107 795.00000 780.35191 1.84% - 1s H 62 62 791.0000000 780.36758 1.34% 19.8 2s H 640 448 790.0000000 781.67308 1.05% 17.2 4s 716 477 785.20616 17 75 790.00000 781.67308 1.05% 17.7 5s 2916 1310 786.95618 19 74 790.00000 783.74439 0.79% 17.9 10s * 3596 1414 35 789.0000000 784.02985 0.63% 17.8 11s 5599 1946 786.46411 23 68 789.00000 784.75058 0.54% 17.6 15s 8322 2481 787.36317 23 86 789.00000 785.34766 0.46% 17.0 20s 10876 2675 787.44465 28 83 789.00000 785.77916 0.41% 16.7 25s 14336 2656 cutoff 21 789.00000 786.20339 0.35% 16.2 30s 17458 2271 787.15879 20 74 789.00000 786.57143 0.31% 15.8 35s 21988 809 787.28788 28 73 789.00000 787.28788 0.22% 15.1 40s Cutting planes: Gomory: 7 MIR: 1 Zero half: 7 Explored 23177 nodes (341491 simplex iterations) in 40.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (3, 63), (6, 16), (6, 38), (14, 28), (14, 55), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 44), (24, 57), (28, 53), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 57), (43, 65), (55, 58), (61, 71), (61, 72), (63, 74), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (40, 73), (10, 32), (10, 40), (11, 39), (11, 59), (12, 67), (12, 54), (17, 64), (50, 64), (25, 50), (26, 51), (26, 56), (59, 73)] Optimize a model with 404 rows, 2850 columns and 109604 nonzeros Presolve time: 0.08s Presolved: 404 rows, 2850 columns, 109604 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 282 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.63217 1.81% - 0s 0 0 780.01691 0 84 794.00000 780.01691 1.76% - 0s 0 0 780.01691 0 90 794.00000 780.01691 1.76% - 0s 0 0 780.01691 0 84 794.00000 780.01691 1.76% - 0s 0 0 780.16066 0 89 794.00000 780.16066 1.74% - 0s 0 0 780.16066 0 92 794.00000 780.16066 1.74% - 0s 0 0 780.17234 0 93 794.00000 780.17234 1.74% - 1s 0 0 780.17920 0 96 794.00000 780.17920 1.74% - 1s 0 0 780.19883 0 94 794.00000 780.19883 1.74% - 1s 0 0 780.22455 0 98 794.00000 780.22455 1.73% - 1s 0 0 780.24460 0 101 794.00000 780.24460 1.73% - 1s 0 0 780.28362 0 96 794.00000 780.28362 1.73% - 1s 0 0 780.28497 0 101 794.00000 780.28497 1.73% - 1s 0 0 780.29266 0 103 794.00000 780.29266 1.73% - 1s 0 0 780.30513 0 103 794.00000 780.30513 1.72% - 1s 0 0 780.30957 0 102 794.00000 780.30957 1.72% - 1s 0 0 780.31557 0 102 794.00000 780.31557 1.72% - 1s 0 0 780.31858 0 104 794.00000 780.31858 1.72% - 1s 0 0 780.32072 0 103 794.00000 780.32072 1.72% - 1s 0 0 780.32220 0 104 794.00000 780.32220 1.72% - 1s 0 0 780.32704 0 100 794.00000 780.32704 1.72% - 1s 0 0 780.33309 0 104 794.00000 780.33309 1.72% - 1s 0 0 780.33943 0 106 794.00000 780.33943 1.72% - 1s 0 0 780.34071 0 105 794.00000 780.34071 1.72% - 1s 0 0 780.34446 0 106 794.00000 780.34446 1.72% - 1s 0 0 780.34655 0 106 794.00000 780.34655 1.72% - 1s 0 0 780.35618 0 106 794.00000 780.35618 1.72% - 1s 0 0 780.35810 0 108 794.00000 780.35810 1.72% - 1s 0 0 780.36108 0 110 794.00000 780.36108 1.72% - 1s 0 0 780.36108 0 110 794.00000 780.36108 1.72% - 1s 0 2 780.36184 0 110 794.00000 780.36184 1.72% - 2s * 244 193 47 793.0000000 780.62747 1.56% 17.3 2s H 600 389 792.0000000 781.82447 1.28% 16.5 3s 885 513 788.74144 27 74 792.00000 781.83379 1.28% 18.5 5s * 1113 547 51 791.0000000 781.95112 1.14% 18.6 5s * 1764 690 29 790.0000000 782.75518 0.92% 18.0 7s 3158 1468 784.05970 21 88 790.00000 783.74616 0.79% 17.3 10s 5637 2664 786.43152 25 77 790.00000 784.32637 0.72% 16.8 15s 8255 3690 786.11875 18 81 790.00000 784.72152 0.67% 16.5 20s 10915 4686 787.75309 28 76 790.00000 785.04795 0.63% 16.4 25s 14134 5772 786.60000 28 72 790.00000 785.30323 0.59% 16.2 30s 17266 6670 787.07143 27 67 790.00000 785.52690 0.57% 16.0 35s *18835 5980 34 789.0000000 785.61020 0.43% 15.9 36s 19001 5996 787.11111 24 84 789.00000 785.62344 0.43% 15.8 40s 21209 6268 785.82069 30 65 789.00000 785.62344 0.43% 16.1 45s 24027 6032 787.44118 35 69 789.00000 785.62344 0.43% 16.2 50s 27085 5431 787.23549 31 83 789.00000 785.68155 0.42% 16.1 55s 30279 4450 787.60331 33 82 789.00000 786.11199 0.37% 16.0 60s 33565 3107 787.78302 34 67 789.00000 786.49693 0.32% 15.9 65s 36886 1167 cutoff 32 789.00000 786.97143 0.26% 15.7 70s Cutting planes: Gomory: 3 MIR: 2 Zero half: 14 Mod-K: 1 Explored 38684 nodes (597977 simplex iterations) in 72.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(3, 63), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (28, 53), (29, 62), (29, 63), (32, 66), (37, 70), (37, 72), (39, 59), (53, 55), (55, 60), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 23), (2, 74), (4, 25), (4, 45), (10, 26), (10, 40), (17, 50), (17, 64), (19, 51), (19, 56), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (33, 45), (33, 51), (34, 74), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65)] Optimize a model with 406 rows, 2850 columns and 110231 nonzeros Presolve time: 0.08s Presolved: 406 rows, 2850 columns, 110231 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 283 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 0s 0 0 780.01691 0 90 799.00000 780.01691 2.38% - 0s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 1s 0 0 780.14867 0 87 799.00000 780.14867 2.36% - 1s 0 0 780.16066 0 92 799.00000 780.16066 2.36% - 1s 0 0 780.17234 0 93 799.00000 780.17234 2.36% - 1s 0 0 780.17920 0 96 799.00000 780.17920 2.36% - 1s 0 0 780.19883 0 94 799.00000 780.19883 2.35% - 1s 0 0 780.22165 0 98 799.00000 780.22165 2.35% - 1s 0 0 780.25555 0 100 799.00000 780.25555 2.35% - 1s 0 0 780.26386 0 103 799.00000 780.26386 2.34% - 1s 0 0 780.28577 0 103 799.00000 780.28577 2.34% - 1s 0 0 780.29463 0 102 799.00000 780.29463 2.34% - 1s 0 0 780.31494 0 100 799.00000 780.31494 2.34% - 1s 0 0 780.33095 0 105 799.00000 780.33095 2.34% - 1s 0 0 780.33500 0 104 799.00000 780.33500 2.34% - 1s 0 0 780.34626 0 103 799.00000 780.34626 2.33% - 1s 0 0 780.36780 0 105 799.00000 780.36780 2.33% - 1s 0 0 780.38521 0 103 799.00000 780.38521 2.33% - 1s 0 0 780.39159 0 101 799.00000 780.39159 2.33% - 1s 0 0 780.39233 0 104 799.00000 780.39233 2.33% - 2s 0 0 780.39424 0 107 799.00000 780.39424 2.33% - 2s 0 0 780.39424 0 107 799.00000 780.39424 2.33% - 2s 0 2 780.39823 0 107 799.00000 780.39823 2.33% - 2s * 435 346 67 797.0000000 781.02200 2.00% 18.4 3s * 511 319 50 794.0000000 781.04874 1.63% 18.7 3s H 601 332 792.0000000 781.21495 1.36% 19.1 3s 613 337 789.44101 22 99 792.00000 781.21495 1.36% 18.7 5s * 1113 472 36 791.0000000 782.61832 1.06% 19.7 7s * 1675 557 27 790.0000000 783.49960 0.82% 18.8 8s 2407 896 786.22093 24 88 790.00000 784.00806 0.76% 18.3 10s * 4201 1264 27 789.0000000 784.84790 0.53% 17.7 13s 4301 1277 786.77143 28 84 789.00000 784.89805 0.52% 17.7 15s 4996 1335 786.67500 33 75 789.00000 784.89805 0.52% 17.9 20s 7874 837 786.66667 29 65 789.00000 785.59091 0.43% 17.3 25s 10966 328 cutoff 34 789.00000 786.91045 0.26% 16.8 30s Cutting planes: Gomory: 8 MIR: 1 Zero half: 8 Explored 11601 nodes (191608 simplex iterations) in 30.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(8, 54), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (29, 75), (32, 40), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (66, 67)] adding cut for [(6, 30), (6, 38), (9, 36), (9, 47), (14, 55), (14, 58), (15, 36), (15, 60), (16, 30), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 70), (31, 49), (37, 70), (37, 72), (48, 49), (61, 71), (61, 72)] Optimize a model with 408 rows, 2850 columns and 110809 nonzeros Presolve time: 0.08s Presolved: 408 rows, 2850 columns, 110809 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 0s 0 0 780.01691 0 90 799.00000 780.01691 2.38% - 0s 0 0 780.01691 0 84 799.00000 780.01691 2.38% - 1s 0 0 780.14867 0 87 799.00000 780.14867 2.36% - 1s 0 0 780.16066 0 92 799.00000 780.16066 2.36% - 1s 0 0 780.17234 0 93 799.00000 780.17234 2.36% - 1s 0 0 780.17920 0 96 799.00000 780.17920 2.36% - 1s 0 0 780.19883 0 94 799.00000 780.19883 2.35% - 1s 0 0 780.22165 0 98 799.00000 780.22165 2.35% - 1s 0 0 780.22173 0 100 799.00000 780.22173 2.35% - 1s 0 0 780.22508 0 101 799.00000 780.22508 2.35% - 1s 0 0 780.23544 0 102 799.00000 780.23544 2.35% - 1s 0 0 780.26610 0 99 799.00000 780.26610 2.34% - 1s 0 0 780.28346 0 98 799.00000 780.28346 2.34% - 1s 0 0 780.28684 0 99 799.00000 780.28684 2.34% - 1s 0 0 780.33185 0 99 799.00000 780.33185 2.34% - 1s 0 0 780.33262 0 101 799.00000 780.33262 2.34% - 1s 0 0 780.34074 0 102 799.00000 780.34074 2.34% - 1s 0 0 780.34077 0 102 799.00000 780.34077 2.34% - 1s 0 0 780.34190 0 102 799.00000 780.34190 2.34% - 1s 0 2 780.34286 0 102 799.00000 780.34286 2.34% - 2s * 116 106 77 796.0000000 780.64404 1.93% 16.5 2s * 264 222 54 795.0000000 781.12940 1.74% 16.1 2s * 267 204 52 794.0000000 781.12940 1.62% 15.9 2s * 536 389 32 793.0000000 781.64404 1.43% 16.6 3s * 587 363 28 792.0000000 781.77189 1.29% 16.6 3s H 700 315 790.0000000 782.07477 1.00% 17.2 3s 994 429 cutoff 32 790.00000 782.08521 1.00% 19.1 5s 3559 1534 788.68446 36 80 790.00000 784.34518 0.72% 17.6 10s 6116 2602 786.41176 31 79 790.00000 785.01093 0.63% 16.9 15s * 8774 2979 33 789.0000000 785.45556 0.45% 16.7 19s 8908 2998 cutoff 27 789.00000 785.46789 0.45% 16.6 20s 12058 3213 787.40122 22 87 789.00000 785.90400 0.39% 16.2 25s 15456 3136 787.56000 21 71 789.00000 786.33333 0.34% 15.8 30s 19532 2352 cutoff 28 789.00000 786.84673 0.27% 15.4 35s Cutting planes: Gomory: 1 MIR: 2 Zero half: 11 Explored 23948 nodes (345357 simplex iterations) in 39.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(9, 36), (9, 47), (11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 75), (32, 56), (36, 54), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(6, 38), (6, 30), (70, 72), (16, 58), (16, 30), (21, 38), (21, 71), (22, 48), (22, 49), (31, 49), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 410 rows, 2850 columns and 111254 nonzeros Presolve time: 0.08s Presolved: 410 rows, 2850 columns, 111254 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 232 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.63217 1.93% - 0s 0 0 780.01691 0 84 795.00000 780.01691 1.88% - 0s 0 0 780.01691 0 90 795.00000 780.01691 1.88% - 0s 0 0 780.01691 0 84 795.00000 780.01691 1.88% - 0s 0 0 780.14867 0 87 795.00000 780.14867 1.87% - 0s 0 0 780.16066 0 91 795.00000 780.16066 1.87% - 1s 0 0 780.17084 0 94 795.00000 780.17084 1.87% - 1s 0 0 780.20723 0 93 795.00000 780.20723 1.86% - 1s 0 0 780.21252 0 97 795.00000 780.21252 1.86% - 1s 0 0 780.21252 0 98 795.00000 780.21252 1.86% - 1s 0 0 780.25471 0 97 795.00000 780.25471 1.85% - 1s 0 0 780.28719 0 98 795.00000 780.28719 1.85% - 1s 0 0 780.32031 0 99 795.00000 780.32031 1.85% - 1s 0 0 780.32403 0 101 795.00000 780.32403 1.85% - 1s 0 0 780.32916 0 99 795.00000 780.32916 1.85% - 1s 0 0 780.33153 0 102 795.00000 780.33153 1.85% - 1s 0 0 780.33450 0 105 795.00000 780.33450 1.84% - 1s 0 0 780.33454 0 108 795.00000 780.33454 1.84% - 1s 0 0 780.34052 0 100 795.00000 780.34052 1.84% - 1s 0 2 780.35105 0 100 795.00000 780.35105 1.84% - 1s * 290 222 38 793.0000000 781.02059 1.51% 18.9 2s H 600 349 791.0000000 781.88407 1.15% 17.7 3s H 730 391 790.0000000 781.88407 1.03% 19.2 4s 1050 493 784.63351 21 82 790.00000 782.91781 0.90% 19.3 5s * 3058 1185 27 789.0000000 784.22535 0.61% 18.1 9s 3589 1340 787.94136 33 75 789.00000 784.44302 0.58% 17.9 10s 6281 1810 786.78441 27 83 789.00000 785.24374 0.48% 17.3 15s 8972 2067 786.45010 23 82 789.00000 785.68387 0.42% 16.8 20s 12325 2084 787.33271 27 86 789.00000 786.17785 0.36% 16.3 25s 15560 1660 787.49678 27 74 789.00000 786.64667 0.30% 15.9 30s Cutting planes: Gomory: 3 MIR: 2 Zero half: 10 Explored 18951 nodes (288940 simplex iterations) in 34.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 74), (2, 23), (3, 63), (4, 45), (4, 52), (33, 51), (33, 45), (43, 65), (43, 44), (19, 56), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (42, 44), (42, 57), (63, 74)] adding cut for [(70, 72), (14, 55), (14, 28), (29, 75), (29, 62), (16, 38), (16, 58), (37, 48), (37, 70), (22, 48), (22, 62), (55, 58), (28, 53), (61, 71), (61, 72), (21, 38), (21, 71)] adding cut for [(66, 67), (8, 54), (9, 36), (9, 20), (12, 66), (12, 54), (15, 20), (15, 60), (60, 67)] adding cut for [(32, 40), (39, 59), (10, 40), (10, 41), (11, 32), (11, 39), (13, 73), (59, 73)] Optimize a model with 414 rows, 2850 columns and 111698 nonzeros Presolve time: 0.08s Presolved: 414 rows, 2850 columns, 111698 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 262 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.63217 1.81% - 0s 0 0 780.01691 0 84 794.00000 780.01691 1.76% - 0s 0 0 780.01691 0 90 794.00000 780.01691 1.76% - 0s 0 0 780.01691 0 84 794.00000 780.01691 1.76% - 0s 0 0 780.14867 0 87 794.00000 780.14867 1.74% - 0s 0 0 780.16066 0 92 794.00000 780.16066 1.74% - 0s 0 0 780.17234 0 93 794.00000 780.17234 1.74% - 1s 0 0 780.22385 0 94 794.00000 780.22385 1.74% - 1s 0 0 780.22385 0 95 794.00000 780.22385 1.74% - 1s 0 0 780.25423 0 92 794.00000 780.25423 1.73% - 1s 0 0 780.25546 0 95 794.00000 780.25546 1.73% - 1s 0 0 780.26683 0 97 794.00000 780.26683 1.73% - 1s 0 0 780.26960 0 97 794.00000 780.26960 1.73% - 1s 0 0 780.28214 0 95 794.00000 780.28214 1.73% - 1s 0 0 780.28285 0 98 794.00000 780.28285 1.73% - 1s 0 0 780.28632 0 99 794.00000 780.28632 1.73% - 1s 0 0 780.30138 0 99 794.00000 780.30138 1.73% - 1s 0 0 780.30138 0 100 794.00000 780.30138 1.73% - 1s 0 0 780.31227 0 103 794.00000 780.31227 1.72% - 1s 0 0 780.33467 0 102 794.00000 780.33467 1.72% - 1s 0 0 780.33467 0 103 794.00000 780.33467 1.72% - 1s 0 0 780.33614 0 104 794.00000 780.33614 1.72% - 1s 0 0 780.34017 0 100 794.00000 780.34017 1.72% - 1s 0 0 780.34018 0 105 794.00000 780.34018 1.72% - 1s 0 0 780.34465 0 102 794.00000 780.34465 1.72% - 1s 0 0 780.34465 0 103 794.00000 780.34465 1.72% - 1s 0 0 780.34871 0 104 794.00000 780.34871 1.72% - 1s 0 0 780.35001 0 106 794.00000 780.35001 1.72% - 2s 0 0 780.35001 0 107 794.00000 780.35001 1.72% - 2s 0 0 780.35001 0 107 794.00000 780.35001 1.72% - 2s 0 2 780.35013 0 107 794.00000 780.35013 1.72% - 2s H 54 54 792.0000000 780.35247 1.47% 23.3 2s 611 465 784.42548 12 96 792.00000 781.62704 1.31% 16.7 5s * 1409 535 32 789.0000000 782.92736 0.77% 18.2 8s 1513 564 787.72727 35 98 789.00000 782.99301 0.76% 17.9 10s 3608 999 787.00559 35 64 789.00000 784.19565 0.61% 18.1 15s 6334 1758 787.65740 38 75 789.00000 784.99778 0.51% 17.3 20s 8847 2045 787.12383 36 69 789.00000 785.55257 0.44% 17.0 25s 11951 2092 787.29403 41 78 789.00000 786.00471 0.38% 16.6 30s 15696 1657 787.70000 38 58 789.00000 786.55932 0.31% 16.1 35s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Explored 19489 nodes (301171 simplex iterations) in 39.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 32), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (13, 59), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 54), (21, 38), (21, 71), (30, 46), (30, 49), (37, 48), (37, 70), (39, 66), (40, 73), (48, 49), (55, 60), (59, 73), (61, 71), (61, 72), (66, 67), (70, 72)] adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (34, 64), (4, 41), (4, 45), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (29, 75), (29, 63), (3, 63), (22, 75), (22, 62), (23, 65), (23, 62)] Optimize a model with 417 rows, 2850 columns and 112332 nonzeros Presolve time: 0.08s Presolved: 417 rows, 2850 columns, 112332 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.63217 1.93% - 0s 0 0 780.01757 0 85 795.00000 780.01757 1.88% - 0s 0 0 780.01757 0 90 795.00000 780.01757 1.88% - 0s 0 0 780.01757 0 85 795.00000 780.01757 1.88% - 0s 0 0 780.15134 0 84 795.00000 780.15134 1.87% - 0s 0 0 780.16270 0 90 795.00000 780.16270 1.87% - 1s 0 0 780.18209 0 93 795.00000 780.18209 1.86% - 1s 0 0 780.20664 0 95 795.00000 780.20664 1.86% - 1s 0 0 780.22586 0 96 795.00000 780.22586 1.86% - 1s 0 0 780.22586 0 97 795.00000 780.22586 1.86% - 1s 0 0 780.23652 0 98 795.00000 780.23652 1.86% - 1s 0 0 780.24117 0 96 795.00000 780.24117 1.86% - 1s 0 0 780.27289 0 99 795.00000 780.27289 1.85% - 1s 0 0 780.30132 0 101 795.00000 780.30132 1.85% - 1s 0 0 780.32594 0 101 795.00000 780.32594 1.85% - 1s 0 0 780.32594 0 102 795.00000 780.32594 1.85% - 1s 0 0 780.32789 0 101 795.00000 780.32789 1.85% - 1s 0 0 780.32789 0 102 795.00000 780.32789 1.85% - 1s 0 0 780.33916 0 100 795.00000 780.33916 1.84% - 1s 0 0 780.34105 0 103 795.00000 780.34105 1.84% - 1s 0 0 780.34172 0 104 795.00000 780.34172 1.84% - 1s 0 0 780.35408 0 98 795.00000 780.35408 1.84% - 1s 0 0 780.35413 0 98 795.00000 780.35413 1.84% - 1s 0 0 780.35512 0 101 795.00000 780.35512 1.84% - 1s 0 0 780.35694 0 103 795.00000 780.35694 1.84% - 1s 0 2 780.36082 0 103 795.00000 780.36082 1.84% - 2s H 600 312 791.0000000 781.65153 1.18% 17.7 3s 613 320 786.95311 17 100 791.00000 781.65153 1.18% 17.4 5s 2402 1149 789.60678 44 79 791.00000 783.50033 0.95% 19.3 10s 4710 2459 786.62035 25 74 791.00000 784.52913 0.82% 18.2 15s * 7507 3470 30 790.0000000 785.03568 0.63% 17.5 19s 7508 3471 787.52593 29 82 790.00000 785.03568 0.63% 17.5 20s 9955 4306 786.75580 27 75 790.00000 785.39929 0.58% 17.1 25s *11232 3527 31 789.0000000 785.57043 0.43% 17.1 27s 13102 3620 786.35954 22 76 789.00000 785.83570 0.40% 16.9 30s 16042 3527 cutoff 26 789.00000 786.25000 0.35% 16.6 35s 20125 2969 787.66923 21 76 789.00000 786.72054 0.29% 16.0 40s 23779 1828 cutoff 28 789.00000 787.21274 0.23% 15.4 45s Cutting planes: Gomory: 8 MIR: 2 Zero half: 6 Explored 26505 nodes (388606 simplex iterations) in 47.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 30), (9, 20), (10, 33), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (16, 58), (19, 25), (19, 56), (20, 54), (21, 38), (21, 71), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (30, 46), (32, 40), (33, 51), (37, 70), (37, 72), (38, 58), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70), (63, 74), (66, 67)] Optimize a model with 418 rows, 2850 columns and 113152 nonzeros Presolve time: 0.08s Presolved: 418 rows, 2850 columns, 113152 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 800.0000000 779.63217 2.55% - 0s H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 1s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.15961 0 90 799.00000 780.15961 2.36% - 1s 0 0 780.19715 0 94 799.00000 780.19715 2.35% - 1s 0 0 780.19715 0 95 799.00000 780.19715 2.35% - 1s 0 0 780.23615 0 95 799.00000 780.23615 2.35% - 1s 0 0 780.23615 0 96 799.00000 780.23615 2.35% - 1s 0 0 780.23806 0 97 799.00000 780.23806 2.35% - 1s 0 0 780.27982 0 99 799.00000 780.27982 2.34% - 1s 0 0 780.28080 0 97 799.00000 780.28080 2.34% - 1s 0 0 780.28336 0 100 799.00000 780.28336 2.34% - 1s 0 0 780.28926 0 101 799.00000 780.28926 2.34% - 1s 0 0 780.28996 0 102 799.00000 780.28996 2.34% - 1s 0 0 780.30376 0 104 799.00000 780.30376 2.34% - 1s 0 0 780.30633 0 101 799.00000 780.30633 2.34% - 1s 0 0 780.30758 0 104 799.00000 780.30758 2.34% - 1s 0 0 780.30792 0 106 799.00000 780.30792 2.34% - 2s 0 0 780.30792 0 106 799.00000 780.30792 2.34% - 2s 0 2 780.30803 0 106 799.00000 780.30803 2.34% - 2s * 213 157 67 794.0000000 780.82168 1.66% 17.0 3s 608 454 788.60870 21 104 794.00000 781.26442 1.60% 16.6 5s * 959 539 56 791.0000000 782.08131 1.13% 19.7 7s 2206 963 785.02153 17 86 791.00000 783.33031 0.97% 18.6 10s * 2451 1017 36 790.0000000 783.50821 0.82% 18.5 10s 3740 1438 787.06452 38 70 790.00000 783.71286 0.80% 18.9 15s 6359 1942 785.28571 36 69 790.00000 784.77778 0.66% 18.0 20s * 6853 1910 47 789.0000000 784.90210 0.52% 17.9 20s 8951 2290 786.63820 41 78 789.00000 785.33333 0.46% 17.6 25s 11801 2663 787.72932 44 62 789.00000 785.75676 0.41% 17.1 30s 14999 2756 786.38889 39 88 789.00000 786.13699 0.36% 16.7 35s 18650 2513 787.36966 39 77 789.00000 786.53422 0.31% 16.3 40s 22418 1656 787.66667 46 54 789.00000 787.00000 0.25% 15.8 45s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Explored 25336 nodes (381568 simplex iterations) in 48.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 58), (16, 38), (16, 58), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (30, 46), (34, 64), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (33, 51), (39, 66), (40, 73), (9, 36), (9, 47), (10, 33), (10, 40), (11, 32), (11, 39), (15, 36), (15, 60), (59, 73), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] adding cut for [(2, 74), (2, 63), (3, 74), (48, 49), (22, 75), (22, 48), (31, 49), (29, 75), (29, 63)] Optimize a model with 421 rows, 2850 columns and 113599 nonzeros Presolve time: 0.08s Presolved: 421 rows, 2850 columns, 113599 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 257 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 801.0000000 779.63217 2.67% - 0s H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 1s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.15961 0 90 799.00000 780.15961 2.36% - 1s 0 0 780.19715 0 94 799.00000 780.19715 2.35% - 1s 0 0 780.19715 0 95 799.00000 780.19715 2.35% - 1s 0 0 780.23615 0 95 799.00000 780.23615 2.35% - 1s 0 0 780.23615 0 96 799.00000 780.23615 2.35% - 1s 0 0 780.23806 0 97 799.00000 780.23806 2.35% - 1s 0 0 780.27179 0 101 799.00000 780.27179 2.34% - 1s 0 0 780.27667 0 103 799.00000 780.27667 2.34% - 1s 0 0 780.28382 0 105 799.00000 780.28382 2.34% - 1s 0 0 780.29053 0 100 799.00000 780.29053 2.34% - 1s 0 0 780.29468 0 101 799.00000 780.29468 2.34% - 1s 0 0 780.32604 0 97 799.00000 780.32604 2.34% - 1s 0 0 780.32803 0 101 799.00000 780.32803 2.34% - 1s 0 0 780.33758 0 101 799.00000 780.33758 2.34% - 1s 0 0 780.33955 0 104 799.00000 780.33955 2.34% - 1s 0 0 780.35057 0 105 799.00000 780.35057 2.33% - 2s 0 0 780.35205 0 103 799.00000 780.35205 2.33% - 2s 0 0 780.35430 0 104 799.00000 780.35430 2.33% - 2s 0 0 780.35576 0 103 799.00000 780.35576 2.33% - 2s 0 0 780.35576 0 103 799.00000 780.35576 2.33% - 2s 0 2 780.35615 0 103 799.00000 780.35615 2.33% - 2s H 600 357 794.0000000 781.38005 1.59% 18.2 4s 605 359 784.88308 7 92 794.00000 781.38005 1.59% 18.1 5s H 640 363 792.0000000 781.38005 1.34% 19.0 7s * 1229 509 49 791.0000000 782.88181 1.03% 18.0 8s H 1400 482 790.0000000 783.17143 0.86% 17.9 9s 1410 488 787.26541 23 97 790.00000 783.17143 0.86% 17.8 10s 3130 849 788.70548 50 72 790.00000 784.07699 0.75% 17.6 15s * 5215 1252 48 789.0000000 784.93082 0.52% 17.5 19s 5627 1302 787.33554 38 80 789.00000 785.04717 0.50% 17.4 20s 8391 1291 cutoff 41 789.00000 785.90625 0.39% 16.9 25s 12142 431 787.56154 37 71 789.00000 787.23077 0.22% 16.1 30s Cutting planes: Gomory: 4 MIR: 1 Zero half: 6 Explored 12739 nodes (200481 simplex iterations) in 30.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 39), (11, 59), (12, 54), (12, 67), (16, 58), (19, 25), (19, 51), (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, 58), (29, 62), (29, 75), (32, 56), (32, 73), (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 422 rows, 2850 columns and 114340 nonzeros Presolve time: 0.08s Presolved: 422 rows, 2850 columns, 114340 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 257 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.63217 2.18% - 0s 0 0 780.01757 0 85 797.00000 780.01757 2.13% - 0s 0 0 780.01757 0 90 797.00000 780.01757 2.13% - 0s 0 0 780.01757 0 85 797.00000 780.01757 2.13% - 1s 0 0 780.15134 0 84 797.00000 780.15134 2.11% - 1s 0 0 780.15961 0 90 797.00000 780.15961 2.11% - 1s 0 0 780.19715 0 94 797.00000 780.19715 2.11% - 1s 0 0 780.19715 0 95 797.00000 780.19715 2.11% - 1s 0 0 780.23615 0 95 797.00000 780.23615 2.10% - 1s 0 0 780.23615 0 96 797.00000 780.23615 2.10% - 1s 0 0 780.23869 0 97 797.00000 780.23869 2.10% - 1s 0 0 780.28109 0 99 797.00000 780.28109 2.10% - 1s 0 0 780.28191 0 99 797.00000 780.28191 2.10% - 1s 0 0 780.29056 0 98 797.00000 780.29056 2.10% - 1s 0 0 780.29056 0 99 797.00000 780.29056 2.10% - 1s 0 0 780.29403 0 101 797.00000 780.29403 2.10% - 1s 0 0 780.29403 0 102 797.00000 780.29403 2.10% - 1s 0 0 780.30655 0 103 797.00000 780.30655 2.09% - 1s 0 0 780.30899 0 104 797.00000 780.30899 2.09% - 1s 0 0 780.32409 0 96 797.00000 780.32409 2.09% - 1s 0 0 780.33185 0 102 797.00000 780.33185 2.09% - 1s 0 0 780.33185 0 103 797.00000 780.33185 2.09% - 1s 0 0 780.35138 0 99 797.00000 780.35138 2.09% - 2s 0 0 780.35138 0 100 797.00000 780.35138 2.09% - 2s 0 0 780.35182 0 103 797.00000 780.35182 2.09% - 2s 0 0 780.35182 0 103 797.00000 780.35182 2.09% - 2s 0 2 780.35189 0 103 797.00000 780.35189 2.09% - 2s H 54 54 792.0000000 780.37936 1.47% 18.9 3s H 600 412 791.0000000 782.10999 1.12% 17.9 4s 685 461 789.45865 50 78 791.00000 782.10999 1.12% 19.7 5s * 2469 1101 33 790.0000000 783.70214 0.80% 19.6 9s 2908 1304 785.40026 22 82 790.00000 783.98632 0.76% 19.3 10s 5442 2444 788.07143 38 67 790.00000 784.75000 0.66% 18.5 15s 7811 3364 788.08133 26 72 790.00000 785.12908 0.62% 18.2 20s * 8516 2981 28 789.0000000 785.22263 0.48% 18.1 21s 10458 3206 infeasible 28 789.00000 785.53768 0.44% 17.9 25s 13615 3238 787.52128 26 62 789.00000 785.96565 0.38% 17.5 30s 17057 3012 787.26957 24 77 789.00000 786.36185 0.33% 17.1 35s 20901 2230 787.58376 21 77 789.00000 786.81060 0.28% 16.7 40s 25096 42 cutoff 27 789.00000 787.98844 0.13% 15.7 45s Cutting planes: Gomory: 2 MIR: 1 Zero half: 11 Explored 25141 nodes (395795 simplex iterations) in 45.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (11, 32), (11, 39), (12, 60), (12, 67), (16, 38), (16, 58), (19, 25), (19, 51), (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), (30, 46), (31, 75), (32, 56), (37, 48), (37, 70), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (55, 58), (55, 60), (61, 71), (61, 72), (66, 67), (70, 72)] Optimize a model with 423 rows, 2850 columns and 115160 nonzeros Presolve time: 0.08s Presolved: 423 rows, 2850 columns, 115160 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 257 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 805.0000000 779.63217 3.15% - 0s H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.15961 0 90 799.00000 780.15961 2.36% - 1s 0 0 780.19715 0 94 799.00000 780.19715 2.35% - 1s 0 0 780.19715 0 95 799.00000 780.19715 2.35% - 1s 0 0 780.23615 0 95 799.00000 780.23615 2.35% - 1s 0 0 780.23615 0 96 799.00000 780.23615 2.35% - 1s 0 0 780.23806 0 97 799.00000 780.23806 2.35% - 1s 0 0 780.27179 0 101 799.00000 780.27179 2.34% - 1s 0 0 780.27667 0 103 799.00000 780.27667 2.34% - 1s 0 0 780.28382 0 105 799.00000 780.28382 2.34% - 1s 0 0 780.29053 0 100 799.00000 780.29053 2.34% - 1s 0 0 780.29468 0 101 799.00000 780.29468 2.34% - 1s 0 0 780.32604 0 97 799.00000 780.32604 2.34% - 1s 0 0 780.32803 0 101 799.00000 780.32803 2.34% - 1s 0 0 780.33758 0 101 799.00000 780.33758 2.34% - 1s 0 0 780.33955 0 104 799.00000 780.33955 2.34% - 1s 0 0 780.35057 0 105 799.00000 780.35057 2.33% - 1s 0 0 780.35205 0 103 799.00000 780.35205 2.33% - 1s 0 0 780.35430 0 104 799.00000 780.35430 2.33% - 1s 0 0 780.35576 0 104 799.00000 780.35576 2.33% - 2s 0 0 780.35576 0 103 799.00000 780.35576 2.33% - 2s 0 2 780.35615 0 103 799.00000 780.35615 2.33% - 2s * 282 206 59 795.0000000 780.97718 1.76% 19.2 3s H 600 400 794.0000000 781.51227 1.57% 18.0 4s 608 406 787.63778 24 99 794.00000 781.51227 1.57% 17.8 5s * 813 466 55 793.0000000 781.51227 1.45% 19.8 6s H 865 461 792.0000000 781.90747 1.27% 20.2 6s * 1102 480 34 791.0000000 782.28571 1.10% 20.2 7s H 1381 542 790.0000000 782.76398 0.92% 20.8 9s 1430 563 788.05983 47 66 790.00000 782.76398 0.92% 20.8 10s 3688 1289 788.20922 44 63 790.00000 784.33766 0.72% 19.2 15s * 5681 1816 60 789.0000000 784.87857 0.52% 18.5 19s 6062 1905 785.92919 35 78 789.00000 785.03014 0.50% 18.3 20s 8549 2281 cutoff 45 789.00000 785.52269 0.44% 17.8 25s 11432 2412 786.34418 36 78 789.00000 785.99696 0.38% 17.4 30s 14839 2186 787.37008 38 82 789.00000 786.44272 0.32% 16.9 35s 18068 1338 787.33333 43 71 789.00000 787.00000 0.25% 16.5 40s Cutting planes: Gomory: 6 MIR: 2 Zero half: 8 Explored 20113 nodes (320904 simplex iterations) in 42.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (11, 32), (11, 59), (12, 54), (12, 67), (14, 55), (14, 58), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (37, 70), (37, 72), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (53, 55), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(2, 64), (2, 74), (48, 49), (17, 64), (22, 75), (22, 48), (31, 49), (29, 75), (29, 63), (63, 74)] adding cut for [(28, 46), (28, 30), (30, 46)] Optimize a model with 426 rows, 2850 columns and 115813 nonzeros Presolve time: 0.08s Presolved: 426 rows, 2850 columns, 115813 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 284 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 1s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.16270 0 91 799.00000 780.16270 2.36% - 1s 0 0 780.18144 0 92 799.00000 780.18144 2.36% - 1s 0 0 780.18144 0 93 799.00000 780.18144 2.36% - 1s 0 0 780.20585 0 96 799.00000 780.20585 2.35% - 1s 0 0 780.21320 0 97 799.00000 780.21320 2.35% - 1s 0 0 780.21929 0 99 799.00000 780.21929 2.35% - 1s 0 0 780.26066 0 100 799.00000 780.26066 2.35% - 1s 0 0 780.26066 0 100 799.00000 780.26066 2.35% - 1s 0 0 780.28581 0 101 799.00000 780.28581 2.34% - 1s 0 0 780.29317 0 101 799.00000 780.29317 2.34% - 1s 0 0 780.29635 0 105 799.00000 780.29635 2.34% - 1s 0 0 780.30259 0 104 799.00000 780.30259 2.34% - 1s 0 0 780.31052 0 103 799.00000 780.31052 2.34% - 1s 0 0 780.33313 0 99 799.00000 780.33313 2.34% - 1s 0 0 780.33779 0 102 799.00000 780.33779 2.34% - 1s 0 0 780.34577 0 102 799.00000 780.34577 2.33% - 1s 0 0 780.34577 0 103 799.00000 780.34577 2.33% - 1s 0 0 780.34957 0 101 799.00000 780.34957 2.33% - 2s 0 0 780.34957 0 102 799.00000 780.34957 2.33% - 2s 0 0 780.35899 0 99 799.00000 780.35899 2.33% - 2s 0 0 780.36331 0 99 799.00000 780.36331 2.33% - 2s 0 0 780.36430 0 100 799.00000 780.36430 2.33% - 2s 0 0 780.36588 0 101 799.00000 780.36588 2.33% - 2s 0 0 780.36588 0 101 799.00000 780.36588 2.33% - 2s 0 2 780.36687 0 101 799.00000 780.36687 2.33% - 2s H 80 70 793.0000000 780.42205 1.59% 23.1 3s * 355 274 50 792.0000000 780.96469 1.39% 19.1 3s 605 435 788.03670 31 95 792.00000 781.54805 1.32% 18.8 5s H 1057 545 791.0000000 782.80000 1.04% 20.1 8s H 1608 548 790.0000000 783.41823 0.83% 19.0 9s 1964 629 788.67448 29 81 790.00000 783.95846 0.76% 18.8 10s 4344 1371 788.15686 29 61 790.00000 785.08590 0.62% 17.8 15s 7171 1881 788.71765 31 72 790.00000 785.82692 0.53% 17.3 20s 9993 2202 788.95833 23 70 790.00000 786.31633 0.47% 16.9 25s *10338 1719 32 789.0000000 786.36369 0.33% 16.9 25s 14054 284 cutoff 32 789.00000 787.71118 0.16% 15.9 30s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 14363 nodes (226111 simplex iterations) in 30.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (10, 26), (10, 40), (13, 40), (13, 41), (14, 28), (14, 58), (16, 38), (16, 58), (19, 51), (19, 56), (21, 38), (21, 71), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (28, 53), (29, 62), (33, 45), (33, 51), (35, 53), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (66, 67), (39, 66), (9, 36), (11, 32), (11, 39), (12, 67), (12, 54), (15, 36), (15, 60), (20, 54), (20, 55), (55, 60), (59, 73)] Optimize a model with 428 rows, 2850 columns and 116513 nonzeros Presolve time: 0.08s Presolved: 428 rows, 2850 columns, 116513 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 284 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 801.0000000 779.63217 2.67% - 0s H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 1s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.15961 0 90 799.00000 780.15961 2.36% - 1s 0 0 780.19715 0 94 799.00000 780.19715 2.35% - 1s 0 0 780.19715 0 95 799.00000 780.19715 2.35% - 1s 0 0 780.23615 0 95 799.00000 780.23615 2.35% - 1s 0 0 780.23615 0 96 799.00000 780.23615 2.35% - 1s 0 0 780.23869 0 97 799.00000 780.23869 2.35% - 1s 0 0 780.27179 0 101 799.00000 780.27179 2.34% - 1s 0 0 780.28452 0 98 799.00000 780.28452 2.34% - 1s 0 0 780.28734 0 99 799.00000 780.28734 2.34% - 1s 0 0 780.29249 0 100 799.00000 780.29249 2.34% - 1s 0 0 780.29937 0 102 799.00000 780.29937 2.34% - 1s 0 0 780.30210 0 103 799.00000 780.30210 2.34% - 1s 0 0 780.31499 0 101 799.00000 780.31499 2.34% - 1s 0 0 780.31737 0 106 799.00000 780.31737 2.34% - 1s 0 0 780.31915 0 103 799.00000 780.31915 2.34% - 1s 0 0 780.33200 0 104 799.00000 780.33200 2.34% - 1s 0 0 780.36031 0 105 799.00000 780.36031 2.33% - 1s 0 0 780.36087 0 104 799.00000 780.36087 2.33% - 2s 0 0 780.36770 0 103 799.00000 780.36770 2.33% - 2s 0 0 780.37209 0 105 799.00000 780.37209 2.33% - 2s 0 0 780.37617 0 105 799.00000 780.37617 2.33% - 2s 0 0 780.37930 0 103 799.00000 780.37930 2.33% - 2s 0 0 780.38127 0 106 799.00000 780.38127 2.33% - 2s 0 0 780.38243 0 106 799.00000 780.38243 2.33% - 2s 0 2 780.38618 0 106 799.00000 780.38618 2.33% - 2s * 261 208 55 796.0000000 781.01676 1.88% 18.0 3s * 572 309 28 792.0000000 781.23898 1.36% 17.5 4s 703 352 787.71154 17 90 792.00000 781.50422 1.33% 17.3 5s * 916 406 43 791.0000000 782.18639 1.11% 19.1 7s H 1118 401 790.0000000 782.73231 0.92% 18.9 8s 1903 578 cutoff 35 790.00000 783.83871 0.78% 18.3 10s 4727 1600 cutoff 29 790.00000 785.08243 0.62% 17.3 15s * 7369 1892 34 789.0000000 785.59481 0.43% 16.8 19s 7640 1896 787.21669 28 78 789.00000 785.66150 0.42% 16.7 20s 10509 1701 787.84536 30 70 789.00000 786.30435 0.34% 16.3 25s 14524 531 787.95667 28 74 789.00000 787.36476 0.21% 15.5 30s Cutting planes: Gomory: 5 MIR: 2 Zero half: 4 Mod-K: 1 Explored 15188 nodes (230944 simplex iterations) in 30.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(3, 63), (6, 16), (6, 38), (9, 20), (9, 47), (14, 28), (14, 55), (15, 20), (15, 60), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (28, 58), (29, 62), (29, 75), (37, 48), (37, 70), (55, 60), (61, 71), (61, 72), (70, 72)] adding cut for [(2, 44), (2, 74), (4, 45), (10, 33), (10, 40), (11, 32), (11, 73), (19, 25), (19, 51), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (33, 45), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65)] adding cut for [(66, 67), (36, 54), (39, 66), (39, 59), (8, 36), (12, 67), (12, 54), (13, 41), (13, 59)] Optimize a model with 431 rows, 2850 columns and 117114 nonzeros Presolve time: 0.09s Presolved: 431 rows, 2850 columns, 117114 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796322e+02, 245 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63217 0 90 2525.00000 779.63217 69.1% - 0s Another try with MIP start H 0 0 801.0000000 779.63217 2.67% - 0s H 0 0 799.0000000 779.63217 2.42% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 90 799.00000 780.01757 2.38% - 0s 0 0 780.01757 0 85 799.00000 780.01757 2.38% - 1s 0 0 780.15134 0 84 799.00000 780.15134 2.36% - 1s 0 0 780.15961 0 90 799.00000 780.15961 2.36% - 1s 0 0 780.19715 0 94 799.00000 780.19715 2.35% - 1s 0 0 780.19715 0 95 799.00000 780.19715 2.35% - 1s 0 0 780.23615 0 95 799.00000 780.23615 2.35% - 1s 0 0 780.23615 0 96 799.00000 780.23615 2.35% - 1s 0 0 780.23869 0 97 799.00000 780.23869 2.35% - 1s 0 0 780.28101 0 96 799.00000 780.28101 2.34% - 1s 0 0 780.28324 0 98 799.00000 780.28324 2.34% - 1s 0 0 780.28513 0 102 799.00000 780.28513 2.34% - 1s 0 0 780.29329 0 105 799.00000 780.29329 2.34% - 1s 0 0 780.29461 0 103 799.00000 780.29461 2.34% - 1s 0 0 780.29827 0 103 799.00000 780.29827 2.34% - 1s 0 0 780.31311 0 106 799.00000 780.31311 2.34% - 1s 0 0 780.34616 0 106 799.00000 780.34616 2.33% - 1s 0 0 780.36483 0 100 799.00000 780.36483 2.33% - 1s 0 0 780.37283 0 104 799.00000 780.37283 2.33% - 1s 0 0 780.37336 0 104 799.00000 780.37336 2.33% - 2s 0 0 780.37379 0 104 799.00000 780.37379 2.33% - 2s 0 2 780.37703 0 104 799.00000 780.37703 2.33% - 2s * 318 285 72 798.0000000 780.92823 2.14% 16.6 3s H 449 359 797.0000000 780.99336 2.01% 17.4 4s 603 476 786.62557 10 90 797.00000 781.37166 1.96% 17.7 5s * 681 484 44 794.0000000 781.62834 1.56% 18.7 7s * 720 471 32 792.0000000 781.89150 1.28% 19.2 7s H 810 442 790.0000000 782.38577 0.96% 19.4 8s 968 521 786.82353 53 65 790.00000 782.38577 0.96% 20.8 10s 3099 1313 788.65378 38 76 790.00000 784.07692 0.75% 19.2 15s 5529 2326 786.44912 38 80 790.00000 784.71792 0.67% 18.3 20s 8030 3164 787.11382 41 86 790.00000 785.10864 0.62% 17.8 25s 10587 4007 786.29397 41 86 790.00000 785.35317 0.59% 17.5 30s 13480 4883 788.34286 43 76 790.00000 785.60657 0.56% 17.1 35s 16603 5728 787.43931 38 75 790.00000 785.81647 0.53% 16.8 40s 20506 6410 787.30031 39 70 790.00000 786.05972 0.50% 16.4 45s *24085 5496 46 789.0000000 786.25000 0.35% 16.2 49s 24117 5494 787.55556 41 65 789.00000 786.25210 0.35% 16.2 50s 27511 4945 787.59959 34 81 789.00000 786.56615 0.31% 16.0 55s 31695 3803 787.89669 40 82 789.00000 786.98386 0.26% 15.6 60s 36444 957 787.86759 38 85 789.00000 787.72684 0.16% 14.9 65s Cutting planes: Gomory: 7 MIR: 1 Zero half: 6 Explored 37495 nodes (548350 simplex iterations) in 66.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 74), (3, 63), (4, 17), (4, 45), (17, 64), (19, 25), (19, 56), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (33, 45), (33, 51), (34, 64), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74)] adding cut for [(32, 40), (66, 67), (39, 66), (9, 36), (9, 47), (10, 40), (10, 41), (11, 32), (11, 39), (12, 67), (12, 54), (15, 36), (15, 60), (20, 54), (20, 55), (55, 60)] adding cut for [(37, 72), (37, 70), (14, 58), (14, 28), (29, 75), (29, 62), (16, 38), (16, 58), (28, 53), (61, 71), (61, 72), (62, 70), (21, 38), (21, 71)] Optimize a model with 434 rows, 2850 columns and 117608 nonzeros Presolve time: 0.09s Presolved: 434 rows, 2850 columns, 117608 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 266 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.14976 0 92 799.00000 780.14976 2.36% - 1s 0 0 780.19380 0 95 799.00000 780.19380 2.35% - 1s 0 0 780.24168 0 94 799.00000 780.24168 2.35% - 1s 0 0 780.24236 0 95 799.00000 780.24236 2.35% - 1s 0 0 780.25931 0 97 799.00000 780.25931 2.35% - 1s 0 0 780.26197 0 97 799.00000 780.26197 2.35% - 1s 0 0 780.26200 0 100 799.00000 780.26200 2.35% - 1s 0 0 780.27137 0 100 799.00000 780.27137 2.34% - 1s 0 0 780.29263 0 99 799.00000 780.29263 2.34% - 1s 0 0 780.29601 0 101 799.00000 780.29601 2.34% - 1s 0 0 780.30461 0 102 799.00000 780.30461 2.34% - 1s 0 0 780.30796 0 103 799.00000 780.30796 2.34% - 1s 0 0 780.31030 0 108 799.00000 780.31030 2.34% - 1s 0 0 780.31582 0 104 799.00000 780.31582 2.34% - 2s 0 0 780.31673 0 105 799.00000 780.31673 2.34% - 2s 0 0 780.32015 0 108 799.00000 780.32015 2.34% - 2s 0 0 780.32452 0 105 799.00000 780.32452 2.34% - 2s 0 0 780.32452 0 105 799.00000 780.32452 2.34% - 2s 0 2 780.32749 0 105 799.00000 780.32749 2.34% - 2s H 78 71 793.0000000 780.64786 1.56% 22.3 2s H 600 388 791.0000000 781.59899 1.19% 19.7 3s 612 391 789.88235 27 98 791.00000 781.59899 1.19% 19.3 5s 1951 757 789.34009 30 79 791.00000 783.59770 0.94% 19.3 10s * 3647 1426 31 790.0000000 784.43196 0.70% 18.8 13s 4260 1580 788.56322 24 80 790.00000 784.67224 0.67% 18.6 15s 6606 2100 786.30435 27 82 790.00000 785.25262 0.60% 18.3 20s 9458 2523 787.78214 27 87 790.00000 785.79344 0.53% 17.7 25s 12792 2799 cutoff 32 790.00000 786.25525 0.47% 17.3 30s 16021 2841 787.53333 27 65 790.00000 786.63158 0.43% 17.0 35s 19366 2661 787.58524 26 81 790.00000 786.97432 0.38% 16.7 40s 23544 2143 cutoff 28 790.00000 787.41789 0.33% 16.3 45s 27858 804 789.00000 29 52 790.00000 788.13333 0.24% 15.8 50s *28349 0 29 789.0000000 789.00000 0.0% 15.8 50s Cutting planes: Gomory: 9 MIR: 1 Zero half: 3 Mod-K: 1 Explored 28350 nodes (447639 simplex iterations) in 50.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.890000000000e+02, best bound 7.890000000000e+02, gap 0.0% adding cut for [(3, 63), (37, 70), (37, 72), (15, 36), (15, 60), (14, 55), (14, 58), (61, 71), (61, 72), (16, 58), (16, 38), (8, 36), (21, 71), (21, 38), (22, 75), (22, 62), (55, 60), (29, 75), (29, 63), (62, 70)] adding cut for [(32, 40), (33, 41), (33, 45), (66, 67), (4, 45), (4, 50), (51, 56), (39, 66), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 54), (19, 51), (19, 25), (20, 54), (9, 20), (25, 50), (26, 56)] adding cut for [(2, 74), (2, 23), (43, 65), (43, 44), (34, 74), (17, 64), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] Optimize a model with 437 rows, 2850 columns and 118094 nonzeros Presolve time: 0.09s Presolved: 437 rows, 2850 columns, 118094 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 245 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.13076 0 92 799.00000 780.13076 2.36% - 1s 0 0 780.16285 0 95 799.00000 780.16285 2.36% - 1s 0 0 780.19119 0 95 799.00000 780.19119 2.35% - 1s 0 0 780.20957 0 98 799.00000 780.20957 2.35% - 1s 0 0 780.26520 0 96 799.00000 780.26520 2.34% - 1s 0 0 780.27019 0 99 799.00000 780.27019 2.34% - 1s 0 0 780.27059 0 100 799.00000 780.27059 2.34% - 1s 0 0 780.28021 0 98 799.00000 780.28021 2.34% - 1s 0 0 780.28029 0 100 799.00000 780.28029 2.34% - 1s 0 0 780.29244 0 100 799.00000 780.29244 2.34% - 1s 0 0 780.29466 0 102 799.00000 780.29466 2.34% - 1s 0 0 780.29818 0 104 799.00000 780.29818 2.34% - 2s 0 0 780.29818 0 106 799.00000 780.29818 2.34% - 2s 0 0 780.30035 0 106 799.00000 780.30035 2.34% - 2s 0 2 780.30043 0 106 799.00000 780.30043 2.34% - 2s H 600 330 792.0000000 780.91879 1.40% 16.5 3s 612 333 786.22222 16 99 792.00000 780.91879 1.40% 16.1 5s * 1678 626 47 791.0000000 783.41057 0.96% 19.4 8s 2176 916 785.16129 21 83 791.00000 783.76154 0.92% 19.5 10s 4467 2057 785.30000 21 71 791.00000 784.65741 0.80% 18.8 15s H 5908 2413 790.0000000 784.94556 0.64% 18.6 18s 6571 2623 788.72727 37 52 790.00000 785.08895 0.62% 18.5 20s 8754 3296 788.08577 21 79 790.00000 785.43421 0.58% 18.1 25s 11306 4001 788.61310 27 69 790.00000 785.72605 0.54% 17.8 30s 14202 4574 786.83453 26 80 790.00000 786.00978 0.51% 17.5 35s 17401 5126 cutoff 23 790.00000 786.21603 0.48% 17.2 40s 20404 5506 787.84615 27 57 790.00000 786.39230 0.46% 16.8 45s 24492 5874 788.64865 34 71 790.00000 786.59783 0.43% 16.4 50s 28586 6147 cutoff 30 790.00000 786.78067 0.41% 16.1 55s 32640 6268 788.05526 24 88 790.00000 786.94662 0.39% 15.8 60s 36895 6239 788.10370 33 82 790.00000 787.11604 0.37% 15.5 65s 40108 6074 789.00000 31 59 790.00000 787.23400 0.35% 15.3 70s 43300 5852 cutoff 34 790.00000 787.35249 0.34% 15.2 81s 46477 5493 cutoff 25 790.00000 787.48297 0.32% 15.0 85s 50865 4777 788.64350 31 69 790.00000 787.68085 0.29% 14.8 90s 54711 3820 788.05327 34 73 790.00000 787.87640 0.27% 14.6 95s 59307 1889 cutoff 30 790.00000 788.27273 0.22% 14.3 100s Cutting planes: Gomory: 9 MIR: 4 Zero half: 8 Explored 61974 nodes (868177 simplex iterations) in 102.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(70, 72), (9, 36), (9, 47), (29, 75), (29, 62), (14, 55), (14, 28), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 73), (32, 56), (33, 45), (4, 45), (19, 51), (19, 25), (17, 64), (40, 73), (10, 33), (10, 40), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 59), (8, 54), (11, 66), (11, 39), (12, 67), (12, 60), (15, 54), (15, 60)] Optimize a model with 440 rows, 2850 columns and 118485 nonzeros Presolve time: 0.09s Presolved: 440 rows, 2850 columns, 118485 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 287 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.63636 1.93% - 0s 0 0 779.93234 0 89 795.00000 779.93234 1.90% - 0s 0 0 779.93234 0 86 795.00000 779.93234 1.90% - 0s 0 0 779.93234 0 89 795.00000 779.93234 1.90% - 0s 0 0 780.15659 0 91 795.00000 780.15659 1.87% - 1s 0 0 780.25438 0 91 795.00000 780.25438 1.85% - 1s 0 0 780.35032 0 98 795.00000 780.35032 1.84% - 1s 0 0 780.38369 0 100 795.00000 780.38369 1.84% - 1s 0 0 780.40573 0 104 795.00000 780.40573 1.84% - 1s 0 0 780.40916 0 100 795.00000 780.40916 1.84% - 1s 0 0 780.41291 0 103 795.00000 780.41291 1.83% - 1s 0 0 780.41291 0 103 795.00000 780.41291 1.83% - 1s 0 2 780.47069 0 103 795.00000 780.47069 1.83% - 1s * 525 383 17 794.0000000 782.41342 1.46% 19.0 2s * 530 309 18 792.0000000 782.41342 1.21% 19.0 2s H 896 478 791.0000000 782.59375 1.06% 20.6 4s 1043 531 785.36803 19 90 791.00000 782.59375 1.06% 21.0 5s * 1382 552 26 790.0000000 783.17355 0.86% 20.9 5s 3448 1331 788.81081 29 64 790.00000 784.66834 0.67% 19.5 10s 5757 2148 788.87500 25 60 790.00000 785.30133 0.59% 18.7 15s 8275 2817 786.87481 20 73 790.00000 785.73684 0.54% 18.3 20s 10955 3340 cutoff 23 790.00000 786.09735 0.49% 17.9 25s 13867 3737 cutoff 24 790.00000 786.39583 0.46% 17.7 30s 16892 4011 788.45122 21 74 790.00000 786.63862 0.43% 17.4 35s 20976 4206 788.78571 27 70 790.00000 786.91264 0.39% 16.9 40s 25202 4106 788.09564 32 74 790.00000 787.17247 0.36% 16.5 45s 29452 3746 cutoff 33 790.00000 787.43413 0.32% 16.1 50s 33756 2871 788.63636 26 62 790.00000 787.76780 0.28% 15.8 55s 37241 1624 788.85965 24 79 790.00000 788.12531 0.24% 15.5 60s Cutting planes: Gomory: 3 MIR: 2 Zero half: 5 Explored 39666 nodes (600303 simplex iterations) in 62.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 16), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 60), (12, 67), (14, 28), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 51), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 63), (24, 50), (24, 57), (25, 50), (26, 56), (28, 46), (29, 62), (29, 75), (32, 66), (37, 48), (37, 70), (39, 59), (40, 73), (42, 57), (42, 65), (43, 44), (43, 65), (51, 56), (53, 55), (59, 73), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] Optimize a model with 441 rows, 2850 columns and 119710 nonzeros Presolve time: 0.09s Presolved: 441 rows, 2850 columns, 119710 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 287 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.22744 0 94 799.00000 780.22744 2.35% - 1s 0 0 780.27630 0 101 799.00000 780.27630 2.34% - 1s 0 0 780.34425 0 96 799.00000 780.34425 2.33% - 1s 0 0 780.34536 0 97 799.00000 780.34536 2.33% - 1s 0 0 780.36170 0 99 799.00000 780.36170 2.33% - 1s 0 0 780.36170 0 100 799.00000 780.36170 2.33% - 1s 0 0 780.36785 0 103 799.00000 780.36785 2.33% - 1s 0 0 780.36871 0 104 799.00000 780.36871 2.33% - 1s 0 0 780.37677 0 101 799.00000 780.37677 2.33% - 1s 0 0 780.38522 0 102 799.00000 780.38522 2.33% - 1s 0 0 780.38522 0 103 799.00000 780.38522 2.33% - 1s 0 0 780.39036 0 107 799.00000 780.39036 2.33% - 2s 0 0 780.39217 0 103 799.00000 780.39217 2.33% - 2s 0 0 780.39478 0 106 799.00000 780.39478 2.33% - 2s 0 0 780.39640 0 107 799.00000 780.39640 2.33% - 2s 0 0 780.39640 0 107 799.00000 780.39640 2.33% - 2s 0 2 780.41543 0 107 799.00000 780.41543 2.33% - 2s * 425 265 46 793.0000000 781.11947 1.50% 16.1 3s 612 388 787.81369 27 98 793.00000 781.23058 1.48% 16.3 5s H 998 493 792.0000000 782.14354 1.24% 18.4 8s H 1455 466 790.0000000 783.00000 0.89% 18.1 9s 1603 491 786.43902 34 86 790.00000 783.39180 0.84% 18.2 10s 2877 677 785.01213 36 78 790.00000 784.10000 0.75% 18.5 15s 5262 1311 787.69345 36 83 790.00000 785.15660 0.61% 18.5 20s 7885 1834 787.61665 37 70 790.00000 785.77726 0.53% 18.1 25s 10848 2133 788.73805 48 66 790.00000 786.23077 0.48% 17.8 30s 13832 2296 788.00000 40 64 790.00000 786.61215 0.43% 17.4 35s 17582 2206 788.78571 44 73 790.00000 786.99258 0.38% 17.1 40s 21678 1690 788.18945 41 81 790.00000 787.43478 0.32% 16.8 45s 25292 654 cutoff 45 790.00000 788.05495 0.25% 16.5 50s Cutting planes: Gomory: 7 MIR: 2 Zero half: 4 Explored 26343 nodes (428520 simplex iterations) in 51.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (14, 28), (14, 55), (16, 38), (16, 58), (21, 38), (21, 71), (22, 62), (22, 75), (23, 63), (23, 65), (28, 58), (29, 63), (29, 75), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (53, 55), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (17, 64), (9, 47), (9, 15), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (15, 60), (60, 67)] adding cut for [(33, 45), (4, 45), (40, 73), (10, 33), (10, 40), (11, 39), (11, 59), (12, 39), (12, 54), (8, 36), (20, 54), (20, 36), (59, 73)] Optimize a model with 444 rows, 2850 columns and 120262 nonzeros Presolve time: 0.09s Presolved: 444 rows, 2850 columns, 120262 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 268 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 797.0000000 779.63636 2.18% - 0s 0 0 779.93234 0 89 797.00000 779.93234 2.14% - 0s 0 0 779.93234 0 86 797.00000 779.93234 2.14% - 0s 0 0 779.93234 0 89 797.00000 779.93234 2.14% - 0s 0 0 780.16509 0 91 797.00000 780.16509 2.11% - 0s 0 0 780.22744 0 94 797.00000 780.22744 2.10% - 1s 0 0 780.27630 0 101 797.00000 780.27630 2.10% - 1s 0 0 780.34425 0 96 797.00000 780.34425 2.09% - 1s 0 0 780.34536 0 97 797.00000 780.34536 2.09% - 1s 0 0 780.36170 0 99 797.00000 780.36170 2.09% - 1s 0 0 780.36170 0 100 797.00000 780.36170 2.09% - 1s 0 0 780.36785 0 103 797.00000 780.36785 2.09% - 1s 0 0 780.36871 0 104 797.00000 780.36871 2.09% - 1s 0 0 780.37677 0 101 797.00000 780.37677 2.09% - 1s 0 0 780.38522 0 102 797.00000 780.38522 2.08% - 1s 0 0 780.39036 0 107 797.00000 780.39036 2.08% - 1s 0 0 780.39318 0 105 797.00000 780.39318 2.08% - 1s 0 0 780.39326 0 107 797.00000 780.39326 2.08% - 1s 0 0 780.41996 0 97 797.00000 780.41996 2.08% - 1s 0 0 780.42675 0 101 797.00000 780.42675 2.08% - 2s 0 0 780.43111 0 101 797.00000 780.43111 2.08% - 2s 0 0 780.43197 0 103 797.00000 780.43197 2.08% - 2s 0 0 780.43513 0 102 797.00000 780.43513 2.08% - 2s 0 0 780.43571 0 105 797.00000 780.43571 2.08% - 2s 0 0 780.43571 0 105 797.00000 780.43571 2.08% - 2s 0 2 780.44487 0 105 797.00000 780.44487 2.08% - 2s * 199 174 54 796.0000000 780.90115 1.90% 16.3 2s * 261 201 48 794.0000000 780.95033 1.64% 15.7 2s * 346 254 55 793.0000000 781.11258 1.50% 16.4 3s 611 430 789.34940 28 96 793.00000 781.98363 1.39% 16.3 5s H 667 439 792.0000000 781.98363 1.26% 17.8 6s * 1388 594 33 791.0000000 783.16694 0.99% 18.1 8s * 1733 540 33 790.0000000 783.50992 0.82% 18.2 9s 1901 622 784.67213 25 89 790.00000 783.73633 0.79% 18.3 10s 2638 748 788.80952 46 76 790.00000 783.73633 0.79% 18.8 15s 5004 1069 788.78862 37 83 790.00000 784.99877 0.63% 18.2 20s 7526 1536 787.91803 38 74 790.00000 785.75630 0.54% 17.9 25s 10064 1769 786.72204 36 69 790.00000 786.22767 0.48% 17.5 30s 14101 1868 789.00000 39 62 790.00000 786.78125 0.41% 16.9 35s 17861 1583 788.58333 42 50 790.00000 787.24715 0.35% 16.5 40s 22317 433 788.70833 38 69 790.00000 788.10811 0.24% 16.1 45s Cutting planes: Gomory: 7 MIR: 1 Zero half: 4 Explored 22944 nodes (365038 simplex iterations) in 45.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(48, 49), (6, 16), (6, 30), (38, 58), (16, 58), (21, 38), (21, 71), (22, 75), (22, 49), (31, 75), (70, 72), (61, 71), (61, 72), (30, 46), (37, 48), (37, 70)] adding cut for [(66, 67), (39, 66), (40, 73), (10, 32), (10, 40), (11, 32), (11, 39), (12, 67), (12, 54), (14, 55), (14, 28), (20, 54), (20, 55), (59, 73), (28, 53)] adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (4, 45), (17, 64), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(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 448 rows, 2850 columns and 120662 nonzeros Presolve time: 0.09s Presolved: 448 rows, 2850 columns, 120662 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 273 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 801.0000000 779.63636 2.67% - 0s H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.15100 0 95 799.00000 780.15100 2.36% - 1s 0 0 780.20350 0 96 799.00000 780.20350 2.35% - 1s 0 0 780.26347 0 98 799.00000 780.26347 2.34% - 1s 0 0 780.27991 0 96 799.00000 780.27991 2.34% - 1s 0 0 780.29141 0 98 799.00000 780.29141 2.34% - 1s 0 0 780.29836 0 102 799.00000 780.29836 2.34% - 1s 0 0 780.30089 0 105 799.00000 780.30089 2.34% - 1s 0 0 780.35131 0 98 799.00000 780.35131 2.33% - 1s 0 0 780.35788 0 100 799.00000 780.35788 2.33% - 1s 0 0 780.39668 0 96 799.00000 780.39668 2.33% - 1s 0 0 780.40109 0 99 799.00000 780.40109 2.33% - 1s 0 0 780.40777 0 101 799.00000 780.40777 2.33% - 1s 0 0 780.40966 0 102 799.00000 780.40966 2.33% - 1s 0 0 780.41792 0 104 799.00000 780.41792 2.33% - 1s 0 0 780.42317 0 106 799.00000 780.42317 2.33% - 2s 0 0 780.42317 0 106 799.00000 780.42317 2.33% - 2s 0 2 780.42525 0 106 799.00000 780.42525 2.32% - 2s * 231 201 94 798.0000000 780.64949 2.17% 16.5 2s H 319 213 794.0000000 781.18029 1.61% 17.7 2s H 600 374 793.0000000 782.10947 1.37% 18.5 3s 762 447 785.00594 19 79 793.00000 782.10947 1.37% 20.5 5s * 1181 526 42 791.0000000 782.12500 1.12% 20.0 6s * 1851 647 35 790.0000000 783.09709 0.87% 19.3 7s 2431 831 787.47856 37 80 790.00000 783.32937 0.84% 20.0 10s 4795 1324 785.71334 34 69 790.00000 784.16637 0.74% 18.9 15s 7159 2205 788.24224 36 74 790.00000 784.75148 0.66% 18.4 20s 9704 3021 788.46154 48 51 790.00000 785.19040 0.61% 18.1 25s 12606 3780 cutoff 35 790.00000 785.52075 0.57% 17.8 30s 15383 4319 788.28087 35 66 790.00000 785.78462 0.53% 17.6 35s 18941 4804 cutoff 42 790.00000 786.05296 0.50% 17.4 40s 22774 5145 788.17241 39 72 790.00000 786.27273 0.47% 17.0 45s 26807 5311 787.00289 32 68 790.00000 786.50000 0.44% 16.8 50s 30893 5411 788.02692 32 72 790.00000 786.70610 0.42% 16.5 55s 34958 5267 788.60344 36 74 790.00000 786.91140 0.39% 16.3 60s 38917 4952 788.78010 34 69 790.00000 787.13636 0.36% 16.1 65s 42857 4398 788.28249 36 74 790.00000 787.36250 0.33% 15.9 70s 47124 3547 788.91071 32 75 790.00000 787.63889 0.30% 15.6 75s 51976 1861 cutoff 38 790.00000 788.09812 0.24% 15.3 80s Cutting planes: Gomory: 3 MIR: 1 Zero half: 11 Explored 54768 nodes (819040 simplex iterations) in 83.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 33), (10, 40), (11, 39), (11, 59), (14, 28), (14, 58), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 66), (32, 73), (33, 51), (37, 70), (37, 72), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(3, 74), (3, 31), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (30, 49), (63, 74)] adding cut for [(8, 36), (12, 67), (12, 54), (15, 36), (15, 60), (20, 54), (20, 55), (53, 55), (60, 67)] Optimize a model with 451 rows, 2850 columns and 121357 nonzeros Presolve time: 0.09s Presolved: 451 rows, 2850 columns, 121357 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 268 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 1s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.22744 0 94 799.00000 780.22744 2.35% - 1s 0 0 780.27630 0 101 799.00000 780.27630 2.34% - 1s 0 0 780.34511 0 95 799.00000 780.34511 2.33% - 1s 0 0 780.35050 0 102 799.00000 780.35050 2.33% - 1s 0 0 780.36589 0 101 799.00000 780.36589 2.33% - 1s 0 0 780.37686 0 99 799.00000 780.37686 2.33% - 1s 0 0 780.38486 0 102 799.00000 780.38486 2.33% - 1s 0 0 780.39066 0 101 799.00000 780.39066 2.33% - 1s 0 0 780.39311 0 100 799.00000 780.39311 2.33% - 1s 0 0 780.39311 0 101 799.00000 780.39311 2.33% - 1s 0 0 780.39566 0 104 799.00000 780.39566 2.33% - 2s 0 0 780.39566 0 105 799.00000 780.39566 2.33% - 2s 0 0 780.40550 0 99 799.00000 780.40550 2.33% - 2s 0 0 780.40550 0 100 799.00000 780.40550 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 2 780.41343 0 105 799.00000 780.41343 2.33% - 2s * 105 95 66 797.0000000 780.66597 2.05% 21.7 2s * 345 227 42 793.0000000 780.84324 1.53% 19.6 3s 609 385 791.00658 33 98 793.00000 781.37728 1.47% 18.1 5s * 849 450 50 792.0000000 781.79504 1.29% 20.5 6s * 1110 472 33 791.0000000 782.72222 1.05% 20.7 7s 2277 954 783.86632 17 85 791.00000 783.84696 0.90% 19.8 10s * 2379 927 36 790.0000000 783.85575 0.78% 19.7 10s 3532 1238 cutoff 36 790.00000 783.95690 0.76% 20.1 15s 5734 1470 788.49057 43 67 790.00000 784.66476 0.68% 19.4 20s 8171 2212 788.21978 44 59 790.00000 785.24832 0.60% 18.8 25s 10616 2698 788.84043 39 63 790.00000 785.64706 0.55% 18.5 30s 13774 3205 787.80377 37 77 790.00000 786.05263 0.50% 18.1 35s 16653 3556 788.01280 40 73 790.00000 786.32718 0.46% 17.8 40s 20112 3788 788.75203 40 72 790.00000 786.60417 0.43% 17.5 45s 24212 3850 788.76949 40 84 790.00000 786.88136 0.39% 17.0 50s 28399 3627 cutoff 38 790.00000 787.13889 0.36% 16.6 55s 32736 3062 788.70833 40 75 790.00000 787.46258 0.32% 16.2 60s 36687 2069 cutoff 38 790.00000 787.83333 0.27% 15.9 65s Cutting planes: Gomory: 5 MIR: 2 Zero half: 9 Explored 40688 nodes (624775 simplex iterations) in 69.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 30), (6, 38), (10, 26), (10, 40), (11, 32), (11, 39), (12, 54), (12, 67), (13, 40), (14, 55), (14, 58), (16, 30), (16, 58), (19, 51), (19, 56), (20, 54), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (32, 73), (33, 45), (33, 51), (37, 70), (37, 72), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(48, 49), (22, 48), (22, 49)] Optimize a model with 453 rows, 2850 columns and 122263 nonzeros Presolve time: 0.09s Presolved: 453 rows, 2850 columns, 122263 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 268 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.23221 0 95 799.00000 780.23221 2.35% - 1s 0 0 780.28591 0 98 799.00000 780.28591 2.34% - 1s 0 0 780.30187 0 102 799.00000 780.30187 2.34% - 1s 0 0 780.33820 0 94 799.00000 780.33820 2.34% - 1s 0 0 780.34710 0 98 799.00000 780.34710 2.33% - 1s 0 0 780.36608 0 102 799.00000 780.36608 2.33% - 1s 0 0 780.37259 0 102 799.00000 780.37259 2.33% - 1s 0 0 780.38094 0 101 799.00000 780.38094 2.33% - 1s 0 0 780.38340 0 103 799.00000 780.38340 2.33% - 1s 0 0 780.38982 0 104 799.00000 780.38982 2.33% - 1s 0 0 780.38982 0 105 799.00000 780.38982 2.33% - 1s 0 0 780.39298 0 102 799.00000 780.39298 2.33% - 2s 0 0 780.39853 0 104 799.00000 780.39853 2.33% - 2s 0 0 780.41717 0 100 799.00000 780.41717 2.33% - 2s 0 0 780.42106 0 103 799.00000 780.42106 2.33% - 2s 0 0 780.43023 0 104 799.00000 780.43023 2.32% - 2s 0 0 780.43343 0 105 799.00000 780.43343 2.32% - 2s 0 0 780.43343 0 105 799.00000 780.43343 2.32% - 2s 0 2 780.44380 0 105 799.00000 780.44380 2.32% - 2s * 525 424 71 798.0000000 781.41813 2.08% 17.7 3s * 638 460 70 796.0000000 781.43628 1.83% 17.8 3s * 737 483 18 795.0000000 781.80657 1.66% 17.8 3s H 900 579 794.0000000 782.07437 1.50% 18.3 4s 912 589 782.07437 13 99 794.00000 782.07437 1.50% 18.4 5s * 1255 682 48 793.0000000 782.07437 1.38% 20.3 6s * 1759 765 43 792.0000000 782.69450 1.17% 20.3 7s 2652 1070 789.25197 26 74 792.00000 783.47944 1.08% 19.9 10s * 2728 855 37 790.0000000 783.54894 0.82% 19.8 10s 4510 1290 784.84951 32 87 790.00000 784.23553 0.73% 19.6 15s 6791 1772 786.58429 38 73 790.00000 784.98020 0.64% 18.9 20s 9313 2542 cutoff 38 790.00000 785.46158 0.57% 18.4 25s 12075 3196 cutoff 41 790.00000 785.81818 0.53% 18.0 30s 15103 3746 786.89189 33 72 790.00000 786.09440 0.49% 17.8 35s 17587 4091 787.98008 35 73 790.00000 786.31501 0.47% 17.6 40s 21205 4401 787.36275 34 74 790.00000 786.58667 0.43% 17.2 45s 25327 4561 788.76033 39 81 790.00000 786.83117 0.40% 16.7 50s 29360 4507 787.86792 37 83 790.00000 787.03922 0.37% 16.4 55s 32868 4314 788.32609 45 64 790.00000 787.21905 0.35% 16.1 60s 36919 3893 788.09115 44 78 790.00000 787.43676 0.32% 15.8 65s 40579 3297 788.92593 36 73 790.00000 787.64286 0.30% 15.6 70s 45155 2025 cutoff 41 790.00000 788.00000 0.25% 15.3 75s Cutting planes: Gomory: 4 MIR: 1 Zero half: 10 Explored 48649 nodes (723686 simplex iterations) in 78.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(32, 73), (32, 56), (3, 63), (42, 44), (42, 57), (43, 65), (43, 44), (13, 73), (19, 51), (19, 25), (25, 50), (23, 65), (23, 62), (24, 50), (24, 57), (26, 51), (26, 56), (29, 62), (29, 63)] adding cut for [(6, 38), (6, 49), (37, 48), (37, 70), (21, 38), (21, 71), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (31, 49)] adding cut for [(66, 67), (39, 66), (8, 36), (11, 39), (11, 59), (12, 67), (12, 54), (15, 36), (15, 60), (20, 54), (20, 55), (55, 60)] adding cut for [(33, 45), (2, 64), (2, 74), (4, 45), (4, 17), (40, 41), (34, 74), (17, 64), (10, 33), (10, 40)] Optimize a model with 457 rows, 2850 columns and 122664 nonzeros Presolve time: 0.09s Presolved: 457 rows, 2850 columns, 122664 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 260 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.22744 0 94 799.00000 780.22744 2.35% - 1s 0 0 780.27630 0 101 799.00000 780.27630 2.34% - 1s 0 0 780.34511 0 95 799.00000 780.34511 2.33% - 1s 0 0 780.35050 0 102 799.00000 780.35050 2.33% - 1s 0 0 780.36589 0 101 799.00000 780.36589 2.33% - 1s 0 0 780.37686 0 99 799.00000 780.37686 2.33% - 1s 0 0 780.38486 0 102 799.00000 780.38486 2.33% - 1s 0 0 780.39066 0 101 799.00000 780.39066 2.33% - 1s 0 0 780.39311 0 100 799.00000 780.39311 2.33% - 1s 0 0 780.39311 0 101 799.00000 780.39311 2.33% - 1s 0 0 780.39566 0 104 799.00000 780.39566 2.33% - 1s 0 0 780.39566 0 105 799.00000 780.39566 2.33% - 1s 0 0 780.40550 0 99 799.00000 780.40550 2.33% - 1s 0 0 780.40550 0 100 799.00000 780.40550 2.33% - 1s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 1s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 1s 0 2 780.41343 0 105 799.00000 780.41343 2.33% - 2s * 84 84 57 796.0000000 780.66597 1.93% 19.4 2s * 92 84 62 795.0000000 780.66597 1.80% 18.3 2s H 142 123 794.0000000 780.67067 1.68% 18.4 2s * 314 216 48 792.0000000 780.91169 1.40% 17.0 2s H 600 356 791.0000000 781.39659 1.21% 17.6 3s 612 363 784.09904 11 99 791.00000 781.39659 1.21% 17.3 5s * 1171 463 32 790.0000000 783.62095 0.81% 19.1 8s 1877 596 787.96774 26 62 790.00000 784.20588 0.73% 19.0 10s 4054 1242 787.70675 24 70 790.00000 785.25646 0.60% 18.3 15s 6569 1693 cutoff 22 790.00000 785.88714 0.52% 18.0 20s 9094 1926 786.92452 28 87 790.00000 786.29687 0.47% 17.8 25s 12129 1981 787.90909 26 76 790.00000 786.67638 0.42% 17.4 30s 14886 1875 cutoff 31 790.00000 787.00000 0.38% 17.1 35s 18608 1382 788.15000 26 66 790.00000 787.50000 0.32% 16.8 40s Cutting planes: Gomory: 7 MIR: 2 Zero half: 6 Explored 22418 nodes (363905 simplex iterations) in 44.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (10, 26), (10, 40), (13, 73), (17, 52), (17, 64), (19, 25), (19, 51), (22, 62), (22, 75), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 63), (29, 75), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (63, 74)] adding cut for [(48, 49), (6, 38), (6, 16), (9, 36), (9, 47), (31, 49), (70, 72), (14, 55), (14, 58), (15, 36), (15, 60), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 59), (66, 67), (39, 66), (8, 54), (11, 32), (11, 39), (12, 67), (12, 54)] Optimize a model with 460 rows, 2850 columns and 123261 nonzeros Presolve time: 0.09s Presolved: 460 rows, 2850 columns, 123261 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 269 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.63636 2.06% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 86 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 0s 0 0 780.16602 0 90 796.00000 780.16602 1.99% - 1s 0 0 780.25393 0 92 796.00000 780.25393 1.98% - 1s 0 0 780.34941 0 98 796.00000 780.34941 1.97% - 1s 0 0 780.37072 0 98 796.00000 780.37072 1.96% - 1s 0 0 780.39729 0 100 796.00000 780.39729 1.96% - 1s 0 0 780.42597 0 97 796.00000 780.42597 1.96% - 1s 0 0 780.43665 0 101 796.00000 780.43665 1.96% - 1s 0 0 780.45990 0 108 796.00000 780.45990 1.95% - 1s 0 0 780.47400 0 106 796.00000 780.47400 1.95% - 1s 0 0 780.48267 0 103 796.00000 780.48267 1.95% - 1s 0 0 780.48267 0 103 796.00000 780.48267 1.95% - 1s 0 2 780.48630 0 103 796.00000 780.48630 1.95% - 1s * 82 69 53 793.0000000 780.75223 1.54% 22.2 2s 616 469 784.51960 11 105 793.00000 782.17373 1.37% 17.8 5s H 809 522 792.0000000 782.17373 1.24% 20.0 5s H 890 478 790.0000000 782.17373 0.99% 20.1 6s 1254 621 788.41667 33 67 790.00000 782.67355 0.93% 21.0 10s 3490 926 785.94614 31 84 790.00000 785.03125 0.63% 19.0 15s 5966 1396 cutoff 34 790.00000 785.75000 0.54% 18.1 20s 8571 1632 788.51859 39 88 790.00000 786.23347 0.48% 17.7 25s 11676 1643 787.36777 33 83 790.00000 786.72917 0.41% 17.2 30s 14716 1354 789.00000 35 55 790.00000 787.22222 0.35% 17.0 35s Cutting planes: Gomory: 8 MIR: 2 Zero half: 9 Explored 18812 nodes (307008 simplex iterations) in 39.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 17), (4, 45), (6, 16), (6, 38), (9, 36), (9, 47), (14, 53), (14, 55), (15, 36), (15, 60), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (28, 53), (28, 58), (29, 62), (29, 75), (33, 45), (33, 51), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (50, 57), (55, 60), (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, 54), (20, 54), (26, 56), (59, 73)] Optimize a model with 462 rows, 2850 columns and 124172 nonzeros Presolve time: 0.09s Presolved: 462 rows, 2850 columns, 124172 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 268 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 801.0000000 779.63636 2.67% - 0s H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.23221 0 95 799.00000 780.23221 2.35% - 1s 0 0 780.28591 0 98 799.00000 780.28591 2.34% - 1s 0 0 780.30242 0 105 799.00000 780.30242 2.34% - 1s 0 0 780.34767 0 97 799.00000 780.34767 2.33% - 1s 0 0 780.35094 0 95 799.00000 780.35094 2.33% - 1s 0 0 780.35631 0 99 799.00000 780.35631 2.33% - 1s 0 0 780.36321 0 103 799.00000 780.36321 2.33% - 1s 0 0 780.39741 0 96 799.00000 780.39741 2.33% - 1s 0 0 780.39999 0 100 799.00000 780.39999 2.33% - 1s 0 0 780.40203 0 101 799.00000 780.40203 2.33% - 1s 0 0 780.40933 0 101 799.00000 780.40933 2.33% - 1s 0 0 780.41398 0 106 799.00000 780.41398 2.33% - 1s 0 0 780.41683 0 106 799.00000 780.41683 2.33% - 1s 0 0 780.41683 0 106 799.00000 780.41683 2.33% - 2s 0 2 780.42041 0 106 799.00000 780.42041 2.33% - 2s * 344 275 65 798.0000000 780.81114 2.15% 16.8 2s * 474 350 79 797.0000000 780.82717 2.03% 17.1 3s * 534 341 41 795.0000000 780.94197 1.77% 17.8 3s * 587 202 32 790.0000000 781.18715 1.12% 18.1 3s 713 262 788.68889 26 99 790.00000 781.66048 1.06% 18.3 5s 2569 989 787.97945 31 66 790.00000 784.07474 0.75% 19.5 10s 5065 2008 788.20772 26 71 790.00000 785.04884 0.63% 18.2 15s 7245 2705 786.00926 22 69 790.00000 785.49121 0.57% 17.8 20s 10007 3447 787.74530 29 73 790.00000 785.83698 0.53% 17.2 25s 12955 3982 787.73529 28 70 790.00000 786.16667 0.49% 16.9 30s 15417 4372 787.79765 26 84 790.00000 786.38287 0.46% 16.8 35s 19081 4752 788.75000 25 57 790.00000 786.66667 0.42% 16.5 40s 23246 4932 788.95041 26 78 790.00000 786.90113 0.39% 16.1 45s 27444 4899 788.11446 28 74 790.00000 787.13727 0.36% 15.7 50s 31614 4562 cutoff 26 790.00000 787.37349 0.33% 15.4 55s 34852 4066 788.50000 29 57 790.00000 787.56410 0.31% 15.2 60s 39468 2889 cutoff 31 790.00000 787.88000 0.27% 14.9 65s 44530 428 788.97959 29 64 790.00000 788.60606 0.18% 14.4 70s Cutting planes: Gomory: 9 MIR: 2 Zero half: 9 Explored 45008 nodes (644972 simplex iterations) in 70.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 17), (4, 45), (6, 30), (6, 58), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (30, 46), (33, 45), (33, 51), (34, 64), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 41), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 36), (15, 60), (26, 56)] Optimize a model with 464 rows, 2850 columns and 124759 nonzeros Presolve time: 0.07s Presolved: 464 rows, 2850 columns, 124759 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 288 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.22744 0 94 799.00000 780.22744 2.35% - 1s 0 0 780.27630 0 101 799.00000 780.27630 2.34% - 1s 0 0 780.34511 0 95 799.00000 780.34511 2.33% - 1s 0 0 780.35050 0 102 799.00000 780.35050 2.33% - 1s 0 0 780.36589 0 101 799.00000 780.36589 2.33% - 1s 0 0 780.37686 0 99 799.00000 780.37686 2.33% - 1s 0 0 780.38486 0 102 799.00000 780.38486 2.33% - 1s 0 0 780.39066 0 101 799.00000 780.39066 2.33% - 1s 0 0 780.39311 0 100 799.00000 780.39311 2.33% - 1s 0 0 780.39311 0 101 799.00000 780.39311 2.33% - 1s 0 0 780.39566 0 104 799.00000 780.39566 2.33% - 1s 0 0 780.39566 0 105 799.00000 780.39566 2.33% - 1s 0 0 780.40550 0 99 799.00000 780.40550 2.33% - 2s 0 0 780.40550 0 100 799.00000 780.40550 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 2 780.41343 0 105 799.00000 780.41343 2.33% - 2s * 118 107 77 798.0000000 780.66597 2.17% 19.8 2s * 308 234 66 796.0000000 780.82209 1.91% 18.0 2s * 451 276 27 793.0000000 780.88450 1.53% 18.1 3s * 589 316 28 792.0000000 781.23362 1.36% 17.7 3s 708 397 790.24638 47 96 792.00000 781.80519 1.29% 17.9 5s 2069 927 785.95833 25 80 792.00000 783.23572 1.11% 19.1 10s 4015 2076 785.53966 20 77 792.00000 784.12909 0.99% 19.0 15s * 4947 2420 26 791.0000000 784.33442 0.84% 18.9 16s 6236 3005 787.23922 24 88 791.00000 784.59575 0.81% 18.7 20s 8368 3910 789.14286 39 51 791.00000 784.92708 0.77% 18.5 25s 10869 4878 790.00000 24 69 791.00000 785.28267 0.72% 18.2 30s *12425 4727 27 790.0000000 785.42274 0.58% 18.1 32s 13622 4964 cutoff 26 790.00000 785.56140 0.56% 18.0 35s 16449 5454 788.73684 32 68 790.00000 785.83629 0.53% 17.8 40s 18914 5728 788.32173 27 72 790.00000 786.04013 0.50% 17.6 45s 22348 6051 788.01885 20 87 790.00000 786.28097 0.47% 17.3 50s 24829 6229 cutoff 26 790.00000 786.42183 0.45% 17.1 55s 28818 6301 cutoff 25 790.00000 786.66158 0.42% 16.8 60s 32002 6272 788.74847 29 76 790.00000 786.82798 0.40% 16.5 70s 35635 6099 788.34783 25 72 790.00000 787.00530 0.38% 16.3 75s 39756 5769 788.43089 49 61 790.00000 787.23786 0.35% 16.1 80s 43602 5226 788.05556 28 69 790.00000 787.44636 0.32% 15.8 85s 46735 4570 cutoff 28 790.00000 787.64062 0.30% 15.7 90s 51158 3183 788.92593 23 78 790.00000 787.99860 0.25% 15.4 95s 54767 1129 cutoff 22 790.00000 788.50000 0.19% 15.1 100s Cutting planes: Gomory: 9 MIR: 1 Zero half: 10 Explored 56147 nodes (832369 simplex iterations) in 101.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 58), (10, 26), (10, 40), (13, 40), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (34, 64), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (48, 49), (50, 57), (51, 56), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (39, 66), (8, 15), (11, 32), (11, 39), (12, 66), (12, 67), (15, 60), (59, 73), (60, 67)] Optimize a model with 466 rows, 2850 columns and 125409 nonzeros Presolve time: 0.07s Presolved: 466 rows, 2850 columns, 125409 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 288 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 1s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16509 0 91 799.00000 780.16509 2.36% - 1s 0 0 780.22744 0 94 799.00000 780.22744 2.35% - 1s 0 0 780.27630 0 101 799.00000 780.27630 2.34% - 1s 0 0 780.34511 0 95 799.00000 780.34511 2.33% - 1s 0 0 780.35050 0 102 799.00000 780.35050 2.33% - 1s 0 0 780.36589 0 101 799.00000 780.36589 2.33% - 1s 0 0 780.37686 0 99 799.00000 780.37686 2.33% - 1s 0 0 780.38486 0 102 799.00000 780.38486 2.33% - 1s 0 0 780.39066 0 101 799.00000 780.39066 2.33% - 1s 0 0 780.39311 0 100 799.00000 780.39311 2.33% - 1s 0 0 780.39311 0 101 799.00000 780.39311 2.33% - 1s 0 0 780.39566 0 104 799.00000 780.39566 2.33% - 1s 0 0 780.39566 0 105 799.00000 780.39566 2.33% - 2s 0 0 780.40550 0 99 799.00000 780.40550 2.33% - 2s 0 0 780.40550 0 100 799.00000 780.40550 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 0 780.40792 0 105 799.00000 780.40792 2.33% - 2s 0 2 780.41343 0 105 799.00000 780.41343 2.33% - 2s * 116 104 77 797.0000000 780.66597 2.05% 18.5 2s H 188 152 795.0000000 780.67067 1.80% 18.0 2s 606 455 782.01636 5 90 795.00000 781.25346 1.73% 19.4 5s H 852 497 794.0000000 782.21409 1.48% 21.3 8s * 952 479 52 792.0000000 782.35243 1.22% 21.1 8s H 1258 500 791.0000000 782.69223 1.05% 20.5 9s 1401 541 787.04655 27 89 791.00000 782.76125 1.04% 20.2 10s 2653 849 785.54741 34 91 791.00000 783.44757 0.95% 20.5 15s 4985 1971 786.33822 38 93 791.00000 784.65614 0.80% 19.0 20s 7247 3053 789.22500 43 66 791.00000 785.21336 0.73% 18.3 25s 9681 4106 785.52382 36 80 791.00000 785.50140 0.70% 17.7 30s *10585 3952 47 790.0000000 785.61625 0.55% 17.6 31s 12456 4378 786.19580 36 75 790.00000 785.84902 0.53% 17.4 35s 15425 4973 787.53741 40 76 790.00000 786.11814 0.49% 17.1 40s 18635 5366 cutoff 40 790.00000 786.37151 0.46% 16.9 45s 22704 5611 787.61538 40 60 790.00000 786.63636 0.43% 16.4 50s 25986 5756 788.37846 39 79 790.00000 786.81949 0.40% 16.2 55s 30286 5697 787.72434 37 73 790.00000 787.04237 0.37% 15.8 60s 33994 5532 cutoff 39 790.00000 787.24000 0.35% 15.6 65s 38253 5033 789.00000 42 34 790.00000 787.47138 0.32% 15.3 70s 42890 4087 cutoff 40 790.00000 787.73876 0.29% 15.1 75s 47237 2535 788.98158 42 86 790.00000 788.10145 0.24% 14.8 80s Cutting planes: Gomory: 6 Zero half: 5 Explored 50907 nodes (731598 simplex iterations) in 84.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(11, 32), (11, 39), (12, 54), (12, 67), (19, 25), (19, 51), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 30), (62, 70), (14, 58), (14, 28), (16, 58), (16, 30), (37, 72), (37, 70), (21, 38), (21, 71), (22, 48), (22, 62), (31, 49), (28, 53), (61, 71), (61, 72)] Optimize a model with 468 rows, 2850 columns and 125811 nonzeros Presolve time: 0.09s Presolved: 468 rows, 2850 columns, 125811 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 292 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.63636 2.06% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 86 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 1s 0 0 780.12558 0 92 796.00000 780.12558 1.99% - 1s 0 0 780.15256 0 94 796.00000 780.15256 1.99% - 1s 0 0 780.26221 0 96 796.00000 780.26221 1.98% - 1s 0 0 780.28906 0 96 796.00000 780.28906 1.97% - 1s 0 0 780.29302 0 98 796.00000 780.29302 1.97% - 1s 0 0 780.29575 0 97 796.00000 780.29575 1.97% - 1s 0 0 780.30041 0 100 796.00000 780.30041 1.97% - 1s 0 0 780.30929 0 99 796.00000 780.30929 1.97% - 1s 0 0 780.31046 0 104 796.00000 780.31046 1.97% - 1s 0 0 780.31087 0 105 796.00000 780.31087 1.97% - 1s 0 0 780.31315 0 103 796.00000 780.31315 1.97% - 1s 0 0 780.31597 0 105 796.00000 780.31597 1.97% - 1s 0 0 780.31807 0 106 796.00000 780.31807 1.97% - 1s 0 0 780.32102 0 105 796.00000 780.32102 1.97% - 2s 0 0 780.32359 0 107 796.00000 780.32359 1.97% - 2s 0 0 780.33299 0 102 796.00000 780.33299 1.97% - 2s 0 0 780.33692 0 101 796.00000 780.33692 1.97% - 2s 0 0 780.33888 0 103 796.00000 780.33888 1.97% - 2s 0 0 780.33943 0 107 796.00000 780.33943 1.97% - 2s 0 0 780.33943 0 106 796.00000 780.33943 1.97% - 2s 0 2 780.33953 0 106 796.00000 780.33953 1.97% - 2s * 195 165 66 794.0000000 780.41192 1.71% 21.7 2s H 600 372 792.0000000 781.57604 1.32% 20.3 3s 609 378 783.71872 6 100 792.00000 781.57604 1.32% 20.0 5s * 1603 664 48 791.0000000 783.55294 0.94% 20.8 8s 2215 947 787.35948 24 73 791.00000 783.95935 0.89% 20.4 10s 4464 2125 786.70833 21 77 791.00000 784.82905 0.78% 19.0 15s 6770 3154 789.00000 26 58 791.00000 785.20690 0.73% 18.4 20s * 7601 3069 30 790.0000000 785.34416 0.59% 18.3 21s 9058 3473 787.29253 27 78 790.00000 785.55556 0.56% 18.1 25s 11672 4138 787.50000 22 83 790.00000 785.92826 0.52% 17.7 30s 14506 4714 787.95185 25 74 790.00000 786.19872 0.48% 17.4 35s 17518 5117 788.18462 26 69 790.00000 786.44646 0.45% 17.2 40s 20456 5350 788.30741 22 65 790.00000 786.64078 0.43% 16.9 45s 24375 5475 cutoff 33 790.00000 786.85361 0.40% 16.5 50s 28361 5452 788.50000 27 59 790.00000 787.06557 0.37% 16.2 55s 32556 5177 cutoff 23 790.00000 787.29934 0.34% 15.9 60s 32806 5177 cutoff 28 790.00000 787.30769 0.34% 15.9 69s 33520 5066 788.61935 27 72 790.00000 787.35000 0.34% 15.9 70s 37238 4515 788.52667 23 70 790.00000 787.55639 0.31% 15.7 75s 41265 3423 788.75330 27 77 790.00000 787.83784 0.27% 15.5 80s 45279 1668 cutoff 31 790.00000 788.25604 0.22% 15.2 85s Cutting planes: Gomory: 5 MIR: 2 Zero half: 5 Mod-K: 1 Explored 47470 nodes (702717 simplex iterations) in 87.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 34), (2, 44), (3, 75), (9, 36), (11, 39), (11, 66), (12, 39), (12, 54), (14, 28), (14, 55), (15, 36), (15, 60), (16, 38), (16, 58), (20, 54), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (28, 58), (29, 63), (29, 75), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (60, 67), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] adding cut for [(32, 40), (32, 73), (33, 41), (33, 45), (4, 45), (19, 51), (19, 25), (17, 64), (10, 40), (10, 26), (13, 41), (13, 59), (24, 64), (24, 57), (50, 57), (51, 56), (25, 50), (26, 56), (59, 73)] Optimize a model with 470 rows, 2850 columns and 126704 nonzeros Presolve time: 0.09s Presolved: 470 rows, 2850 columns, 126704 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 796.0000000 779.63636 2.06% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 86 796.00000 779.93234 2.02% - 0s 0 0 779.93234 0 89 796.00000 779.93234 2.02% - 0s 0 0 780.13830 0 92 796.00000 780.13830 1.99% - 1s 0 0 780.18932 0 92 796.00000 780.18932 1.99% - 1s 0 0 780.23779 0 97 796.00000 780.23779 1.98% - 1s 0 0 780.26134 0 99 796.00000 780.26134 1.98% - 1s 0 0 780.30808 0 97 796.00000 780.30808 1.97% - 1s 0 0 780.32965 0 100 796.00000 780.32965 1.97% - 1s 0 0 780.33506 0 101 796.00000 780.33506 1.97% - 1s 0 0 780.34379 0 102 796.00000 780.34379 1.97% - 1s 0 0 780.35563 0 100 796.00000 780.35563 1.97% - 1s 0 0 780.35744 0 101 796.00000 780.35744 1.97% - 1s 0 0 780.35964 0 103 796.00000 780.35964 1.96% - 1s 0 0 780.35964 0 103 796.00000 780.35964 1.96% - 1s 0 2 780.35973 0 103 796.00000 780.35973 1.96% - 1s * 199 149 68 794.0000000 781.04970 1.63% 19.1 2s 911 602 786.87500 31 59 794.00000 782.19310 1.49% 20.4 5s * 1678 827 47 793.0000000 783.51195 1.20% 20.3 7s H 1822 771 792.0000000 783.64212 1.06% 20.2 7s 2919 1411 784.47509 22 87 792.00000 784.28651 0.97% 19.4 10s H 3824 1715 791.0000000 784.52369 0.82% 19.2 12s 5109 2286 786.56338 21 76 791.00000 784.86298 0.78% 19.2 15s 7261 3175 786.39866 22 88 791.00000 785.26415 0.73% 18.9 20s * 8985 3297 36 790.0000000 785.50000 0.57% 18.7 23s 9101 3312 788.59259 31 89 790.00000 785.51378 0.57% 18.7 26s 10286 3561 785.88914 36 80 790.00000 785.51378 0.57% 19.1 30s 12508 3661 789.00000 42 44 790.00000 785.51378 0.57% 19.1 35s 14944 3482 787.99431 40 79 790.00000 785.51378 0.57% 19.1 40s 17562 3100 786.70588 40 81 790.00000 785.84471 0.53% 18.9 45s 20310 2992 787.75964 35 69 790.00000 786.18182 0.48% 18.7 50s 22799 3207 788.56522 47 75 790.00000 786.43409 0.45% 18.4 55s 26067 3342 789.00000 43 61 790.00000 786.73611 0.41% 18.2 60s 29639 3377 788.04762 40 57 790.00000 787.02469 0.38% 17.8 65s 33199 3090 788.16216 40 77 790.00000 787.33149 0.34% 17.4 70s 37343 2501 cutoff 42 790.00000 787.65591 0.30% 17.0 75s 41484 1299 788.39438 44 73 790.00000 788.11243 0.24% 16.5 80s Cutting planes: Gomory: 3 MIR: 1 Zero half: 12 Explored 43567 nodes (704180 simplex iterations) in 82.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (11, 32), (11, 59), (12, 54), (12, 67), (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), (39, 59), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(16, 58), (16, 38), (35, 53), (6, 48), (6, 30), (70, 72), (14, 55), (14, 28), (53, 55), (21, 71), (21, 38), (28, 58), (61, 71), (61, 72), (30, 46), (37, 70), (37, 48)] Optimize a model with 472 rows, 2850 columns and 127235 nonzeros Presolve time: 0.09s Presolved: 472 rows, 2850 columns, 127235 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 802.0000000 779.63636 2.79% - 0s H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 1s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16602 0 90 799.00000 780.16602 2.36% - 1s 0 0 780.25393 0 92 799.00000 780.25393 2.35% - 1s 0 0 780.34941 0 98 799.00000 780.34941 2.33% - 1s 0 0 780.37072 0 97 799.00000 780.37072 2.33% - 1s 0 0 780.39719 0 101 799.00000 780.39719 2.33% - 1s 0 0 780.46799 0 103 799.00000 780.46799 2.32% - 1s 0 0 780.46838 0 105 799.00000 780.46838 2.32% - 1s 0 0 780.49547 0 97 799.00000 780.49547 2.32% - 1s 0 0 780.49634 0 105 799.00000 780.49634 2.32% - 1s 0 0 780.49952 0 102 799.00000 780.49952 2.32% - 1s 0 0 780.50147 0 104 799.00000 780.50147 2.32% - 1s 0 0 780.51612 0 106 799.00000 780.51612 2.31% - 1s 0 0 780.52382 0 105 799.00000 780.52382 2.31% - 1s 0 0 780.53283 0 104 799.00000 780.53283 2.31% - 1s 0 0 780.53283 0 104 799.00000 780.53283 2.31% - 2s 0 2 780.54356 0 104 799.00000 780.54356 2.31% - 2s H 212 131 793.0000000 781.07623 1.50% 21.1 3s * 330 195 36 792.0000000 781.27432 1.35% 20.4 3s 606 372 786.91931 18 101 792.00000 781.87310 1.28% 19.8 5s 1901 834 790.68750 35 62 792.00000 783.53654 1.07% 20.6 10s * 2222 937 37 791.0000000 783.82292 0.91% 20.3 10s H 3020 1208 790.0000000 784.24000 0.73% 20.0 12s 4014 1590 788.06992 24 73 790.00000 784.69476 0.67% 19.7 15s 6121 2279 786.33031 26 87 790.00000 785.24912 0.60% 19.3 20s 8464 2978 788.22266 28 86 790.00000 785.62319 0.55% 18.7 25s 10874 3424 788.69082 33 73 790.00000 785.92500 0.52% 18.3 30s 13757 3866 787.92593 25 69 790.00000 786.20912 0.48% 18.0 35s 16213 4179 cutoff 28 790.00000 786.42138 0.45% 17.7 40s 19580 4426 788.83333 33 62 790.00000 786.66667 0.42% 17.4 45s 23459 4545 788.97701 29 64 790.00000 786.89487 0.39% 17.0 50s 27112 4521 787.62112 28 86 790.00000 787.07352 0.37% 16.6 55s 31151 4323 788.67945 25 78 790.00000 787.28844 0.34% 16.3 60s 35131 3770 788.78560 29 77 790.00000 787.51494 0.31% 16.0 65s 38940 2933 788.33228 28 81 790.00000 787.76455 0.28% 15.8 70s 43184 1309 788.82707 25 79 790.00000 788.21039 0.23% 15.5 75s Cutting planes: Gomory: 6 MIR: 3 Zero half: 7 Explored 44997 nodes (683583 simplex iterations) in 77.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(4, 25), (4, 45), (6, 16), (6, 38), (10, 40), (10, 41), (11, 32), (11, 73), (16, 58), (19, 51), (19, 56), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 32), (26, 56), (28, 58), (33, 45), (33, 51), (37, 70), (37, 72), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(3, 74), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63), (30, 46), (30, 49), (63, 74)] adding cut for [(66, 67), (36, 54), (39, 66), (39, 59), (8, 36), (12, 67), (12, 54), (13, 59)] Optimize a model with 475 rows, 2850 columns and 127877 nonzeros Presolve time: 0.09s Presolved: 475 rows, 2850 columns, 127877 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 267 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.63636 1.81% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 86 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 1s 0 0 780.15363 0 91 794.00000 780.15363 1.74% - 1s 0 0 780.21517 0 92 794.00000 780.21517 1.74% - 1s 0 0 780.29940 0 93 794.00000 780.29940 1.73% - 1s 0 0 780.30765 0 95 794.00000 780.30765 1.72% - 1s 0 0 780.32858 0 96 794.00000 780.32858 1.72% - 1s 0 0 780.33467 0 99 794.00000 780.33467 1.72% - 1s 0 0 780.35039 0 103 794.00000 780.35039 1.72% - 1s 0 0 780.36123 0 95 794.00000 780.36123 1.72% - 1s 0 0 780.36437 0 97 794.00000 780.36437 1.72% - 1s 0 0 780.37579 0 97 794.00000 780.37579 1.72% - 1s 0 0 780.37723 0 102 794.00000 780.37723 1.72% - 1s 0 0 780.37926 0 101 794.00000 780.37926 1.72% - 1s 0 0 780.38152 0 104 794.00000 780.38152 1.72% - 1s 0 0 780.38152 0 104 794.00000 780.38152 1.72% - 1s 0 2 780.38553 0 104 794.00000 780.38553 1.71% - 1s H 92 72 793.0000000 780.94993 1.52% 20.6 2s 864 577 788.69231 28 66 793.00000 782.23425 1.36% 19.9 5s * 895 522 43 791.0000000 782.23425 1.11% 19.9 5s H 1066 526 790.0000000 782.44070 0.96% 20.3 5s 2250 816 788.88172 36 68 790.00000 783.76384 0.79% 20.4 10s 4694 1675 788.35417 36 76 790.00000 784.78302 0.66% 19.1 15s 7112 2476 788.28808 41 72 790.00000 785.29784 0.60% 18.5 20s 9537 3166 786.41211 39 74 790.00000 785.63525 0.55% 18.0 25s 12296 3800 788.11429 38 80 790.00000 785.93353 0.51% 17.8 30s 15102 4359 787.08451 34 75 790.00000 786.15279 0.49% 17.4 35s 18556 4910 788.04545 41 70 790.00000 786.39298 0.46% 17.0 40s 22192 5298 788.24561 36 73 790.00000 786.57826 0.43% 16.6 45s 26307 5518 787.79327 36 73 790.00000 786.78462 0.41% 16.2 50s 30740 5640 787.91176 43 69 790.00000 786.99020 0.38% 15.8 55s 34441 5493 788.85714 38 73 790.00000 787.13855 0.36% 15.6 60s 38793 5195 788.41667 39 55 790.00000 787.33333 0.34% 15.3 65s 42258 4750 788.96273 39 82 790.00000 787.48979 0.32% 15.1 70s 46468 3949 787.97218 35 81 790.00000 787.70833 0.29% 14.9 75s 51102 2528 cutoff 39 790.00000 788.01174 0.25% 14.7 80s Cutting planes: Gomory: 3 MIR: 1 Zero half: 10 Explored 55427 nodes (789139 simplex iterations) in 84.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(6, 30), (6, 49), (8, 54), (9, 36), (9, 47), (14, 28), (14, 55), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 70), (28, 53), (36, 54), (37, 70), (37, 72), (47, 53), (48, 49), (55, 58), (61, 71), (61, 72)] adding cut for [(32, 40), (32, 73), (33, 51), (33, 45), (4, 45), (39, 66), (10, 40), (10, 26), (11, 39), (11, 59), (12, 66), (12, 67), (15, 20), (15, 60), (19, 51), (19, 56), (26, 56), (59, 73), (60, 67)] adding cut for [(2, 64), (2, 74), (3, 75), (3, 63), (17, 50), (34, 64), (43, 65), (43, 44), (42, 44), (42, 57), (25, 50), (23, 65), (23, 62), (24, 25), (24, 57), (29, 75), (29, 62), (63, 74)] Optimize a model with 478 rows, 2850 columns and 128491 nonzeros Presolve time: 0.09s Presolved: 478 rows, 2850 columns, 128491 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.63636 1.81% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 86 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 0s 0 0 780.15659 0 91 794.00000 780.15659 1.74% - 1s 0 0 780.25328 0 90 794.00000 780.25328 1.73% - 1s 0 0 780.26327 0 91 794.00000 780.26327 1.73% - 1s 0 0 780.31019 0 93 794.00000 780.31019 1.72% - 1s 0 0 780.31019 0 95 794.00000 780.31019 1.72% - 1s 0 0 780.31453 0 93 794.00000 780.31453 1.72% - 1s 0 0 780.31798 0 94 794.00000 780.31798 1.72% - 1s 0 0 780.31967 0 94 794.00000 780.31967 1.72% - 1s 0 0 780.33790 0 94 794.00000 780.33790 1.72% - 1s 0 0 780.34762 0 95 794.00000 780.34762 1.72% - 1s 0 0 780.35771 0 100 794.00000 780.35771 1.72% - 1s 0 0 780.36243 0 102 794.00000 780.36243 1.72% - 1s 0 0 780.38673 0 101 794.00000 780.38673 1.71% - 1s 0 0 780.39210 0 104 794.00000 780.39210 1.71% - 1s 0 0 780.42114 0 101 794.00000 780.42114 1.71% - 1s 0 0 780.42541 0 101 794.00000 780.42541 1.71% - 1s 0 0 780.42694 0 103 794.00000 780.42694 1.71% - 1s 0 0 780.42956 0 100 794.00000 780.42956 1.71% - 1s 0 0 780.43067 0 103 794.00000 780.43067 1.71% - 1s 0 0 780.43471 0 103 794.00000 780.43471 1.71% - 1s 0 0 780.43567 0 105 794.00000 780.43567 1.71% - 1s 0 0 780.43721 0 106 794.00000 780.43721 1.71% - 2s 0 0 780.43721 0 106 794.00000 780.43721 1.71% - 2s 0 2 780.43966 0 106 794.00000 780.43966 1.71% - 2s H 27 27 791.0000000 780.65134 1.31% 25.8 2s 771 524 787.59533 19 80 791.00000 782.41365 1.09% 19.6 5s H 969 557 790.0000000 782.41365 0.96% 20.1 5s 3009 1304 cutoff 22 790.00000 784.31207 0.72% 18.1 10s 5390 2309 787.45762 20 89 790.00000 785.06061 0.63% 17.5 15s 7804 3068 786.65702 24 78 790.00000 785.42184 0.58% 17.1 20s 10201 3711 787.64979 27 71 790.00000 785.76718 0.54% 16.9 25s 13309 4408 cutoff 27 790.00000 786.06827 0.50% 16.6 30s 16446 4858 787.77778 26 67 790.00000 786.33333 0.46% 16.5 35s 20031 5217 788.42697 24 69 790.00000 786.56410 0.43% 16.3 40s 23694 5326 cutoff 22 790.00000 786.78000 0.41% 16.0 45s 27836 5281 788.76119 36 60 790.00000 787.00000 0.38% 15.7 50s 31603 4993 cutoff 32 790.00000 787.21192 0.35% 15.5 63s 33027 4817 788.37931 28 73 790.00000 787.28365 0.34% 15.5 65s 36627 4244 788.79693 19 76 790.00000 787.48090 0.32% 15.3 70s 40198 3330 788.93750 27 80 790.00000 787.72850 0.29% 15.1 75s 44803 1671 788.80822 30 69 790.00000 788.13684 0.24% 14.8 80s Cutting planes: Gomory: 2 MIR: 1 Zero half: 12 Explored 47526 nodes (688149 simplex iterations) in 82.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 44), (2, 64), (6, 16), (6, 38), (8, 54), (9, 20), (9, 53), (14, 28), (14, 55), (16, 58), (17, 50), (20, 54), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (28, 53), (29, 62), (29, 75), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 40), (39, 66), (40, 73), (11, 32), (11, 39), (12, 66), (12, 67), (13, 59), (15, 36), (15, 60), (59, 73), (60, 67)] Optimize a model with 480 rows, 2850 columns and 129164 nonzeros Presolve time: 0.08s Presolved: 480 rows, 2850 columns, 129164 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 281 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.16602 0 90 799.00000 780.16602 2.36% - 1s 0 0 780.25393 0 92 799.00000 780.25393 2.35% - 1s 0 0 780.34941 0 98 799.00000 780.34941 2.33% - 1s 0 0 780.37072 0 98 799.00000 780.37072 2.33% - 1s 0 0 780.39719 0 102 799.00000 780.39719 2.33% - 1s 0 0 780.46799 0 103 799.00000 780.46799 2.32% - 1s 0 0 780.46838 0 105 799.00000 780.46838 2.32% - 1s 0 0 780.49547 0 97 799.00000 780.49547 2.32% - 1s 0 0 780.49634 0 105 799.00000 780.49634 2.32% - 1s 0 0 780.49952 0 101 799.00000 780.49952 2.32% - 1s 0 0 780.50202 0 105 799.00000 780.50202 2.32% - 2s 0 0 780.50211 0 105 799.00000 780.50211 2.32% - 2s 0 0 780.50211 0 105 799.00000 780.50211 2.32% - 2s 0 2 780.50222 0 105 799.00000 780.50222 2.32% - 2s * 217 165 63 794.0000000 781.25422 1.61% 18.8 2s H 600 386 793.0000000 782.16897 1.37% 19.7 3s 611 394 783.51054 7 98 793.00000 782.16897 1.37% 19.3 5s H 1048 560 792.0000000 782.19656 1.24% 21.3 7s H 1603 634 791.0000000 783.40083 0.96% 20.2 8s 2096 905 786.46105 23 83 791.00000 783.89986 0.90% 19.6 10s 4290 2049 786.03671 24 76 791.00000 784.67755 0.80% 18.5 15s H 5143 2176 790.0000000 784.83888 0.65% 18.3 16s 5311 2223 788.16809 34 103 790.00000 784.90909 0.64% 18.2 20s 7126 2596 786.03785 37 81 790.00000 784.90909 0.64% 18.6 25s 9308 2729 cutoff 46 790.00000 785.09155 0.62% 18.3 30s 11931 2694 787.29630 40 68 790.00000 785.53846 0.56% 18.0 35s 14789 3295 cutoff 45 790.00000 785.94068 0.51% 17.7 40s 17625 3753 788.87455 49 71 790.00000 786.22597 0.48% 17.4 45s 20851 4067 788.70613 47 71 790.00000 786.50244 0.44% 17.2 50s 24070 4221 787.34727 42 67 790.00000 786.75198 0.41% 17.0 55s 27921 4260 787.79913 48 65 790.00000 786.99477 0.38% 16.6 60s 31568 4043 788.58934 42 71 790.00000 787.20000 0.35% 16.3 65s 35870 3552 cutoff 43 790.00000 787.47475 0.32% 16.0 70s 39979 2794 cutoff 47 790.00000 787.75410 0.28% 15.7 75s 44002 1221 788.91988 51 72 790.00000 788.25093 0.22% 15.3 80s Cutting planes: Gomory: 8 MIR: 1 Zero half: 8 Explored 45782 nodes (689057 simplex iterations) in 82.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(14, 28), (14, 55), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (28, 53), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (33, 41), (33, 45), (4, 45), (4, 50), (40, 73), (10, 32), (10, 40), (13, 73), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (36, 54), (39, 66), (11, 39), (11, 59), (12, 67), (12, 54)] Optimize a model with 483 rows, 2850 columns and 129597 nonzeros Presolve time: 0.09s Presolved: 483 rows, 2850 columns, 129597 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 266 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 794.0000000 779.63636 1.81% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 86 794.00000 779.93234 1.77% - 0s 0 0 779.93234 0 89 794.00000 779.93234 1.77% - 1s 0 0 780.13511 0 92 794.00000 780.13511 1.75% - 1s 0 0 780.16903 0 93 794.00000 780.16903 1.74% - 1s 0 0 780.19549 0 94 794.00000 780.19549 1.74% - 1s 0 0 780.20143 0 96 794.00000 780.20143 1.74% - 1s 0 0 780.26595 0 92 794.00000 780.26595 1.73% - 1s 0 0 780.28070 0 98 794.00000 780.28070 1.73% - 1s 0 0 780.29412 0 98 794.00000 780.29412 1.73% - 1s 0 0 780.29911 0 99 794.00000 780.29911 1.73% - 1s 0 0 780.30043 0 101 794.00000 780.30043 1.73% - 1s 0 0 780.30516 0 100 794.00000 780.30516 1.72% - 1s 0 0 780.31467 0 102 794.00000 780.31467 1.72% - 1s 0 0 780.33808 0 102 794.00000 780.33808 1.72% - 1s 0 0 780.34717 0 105 794.00000 780.34717 1.72% - 1s 0 0 780.34717 0 105 794.00000 780.34717 1.72% - 1s 0 2 780.34961 0 105 794.00000 780.34961 1.72% - 1s * 516 371 42 793.0000000 781.90588 1.40% 19.6 3s 717 481 784.03947 17 81 793.00000 781.92308 1.40% 20.9 5s * 973 535 38 792.0000000 782.23661 1.23% 22.2 5s * 1957 768 39 791.0000000 783.75203 0.92% 21.1 8s H 2183 768 790.0000000 783.85031 0.78% 20.8 8s 2617 944 784.76809 19 84 790.00000 784.05622 0.75% 20.6 10s 4699 1794 786.41733 22 85 790.00000 784.92823 0.64% 19.9 15s 6884 2487 787.94718 21 83 790.00000 785.37864 0.58% 19.2 20s 9149 3119 787.91882 21 76 790.00000 785.72653 0.54% 18.8 25s 11657 3613 788.03531 24 88 790.00000 786.01613 0.50% 18.4 30s 14553 3987 787.92082 24 74 790.00000 786.29109 0.47% 18.1 35s 17092 4239 787.61538 20 81 790.00000 786.50000 0.44% 17.9 40s 20402 4464 cutoff 30 790.00000 786.72754 0.41% 17.5 45s 24173 4502 787.92384 24 73 790.00000 786.95238 0.39% 17.0 50s 28045 4347 788.42227 24 77 790.00000 787.18951 0.36% 16.7 55s 31940 3956 787.50328 22 80 790.00000 787.42652 0.33% 16.4 60s 35956 3094 788.66667 20 69 790.00000 787.72231 0.29% 16.0 65s 39263 1928 cutoff 26 790.00000 788.02632 0.25% 15.8 70s Cutting planes: Gomory: 4 MIR: 1 Zero half: 10 Explored 42335 nodes (647827 simplex iterations) in 73.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 23), (2, 64), (4, 25), (4, 45), (10, 26), (10, 40), (13, 40), (17, 64), (19, 51), (19, 56), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (33, 45), (33, 51), (42, 44), (42, 57), (43, 44), (43, 65)] adding cut for [(8, 54), (14, 53), (14, 55), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (28, 53), (28, 58), (29, 62), (29, 63), (34, 74), (36, 54), (37, 70), (37, 72), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 73), (66, 67), (39, 66), (39, 59), (9, 47), (9, 15), (11, 32), (11, 59), (12, 67), (12, 60), (15, 60)] Optimize a model with 486 rows, 2850 columns and 130125 nonzeros Presolve time: 0.09s Presolved: 486 rows, 2850 columns, 130125 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 282 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 795.0000000 779.63636 1.93% - 0s 0 0 779.93234 0 89 795.00000 779.93234 1.90% - 0s 0 0 779.93234 0 86 795.00000 779.93234 1.90% - 1s 0 0 779.93234 0 89 795.00000 779.93234 1.90% - 1s 0 0 780.15363 0 91 795.00000 780.15363 1.87% - 1s 0 0 780.21756 0 91 795.00000 780.21756 1.86% - 1s 0 0 780.29941 0 95 795.00000 780.29941 1.85% - 1s 0 0 780.33592 0 96 795.00000 780.33592 1.84% - 1s 0 0 780.35145 0 100 795.00000 780.35145 1.84% - 1s 0 0 780.36061 0 101 795.00000 780.36061 1.84% - 1s 0 0 780.36559 0 101 795.00000 780.36559 1.84% - 1s 0 0 780.36864 0 103 795.00000 780.36864 1.84% - 1s 0 0 780.36935 0 107 795.00000 780.36935 1.84% - 1s 0 0 780.36987 0 108 795.00000 780.36987 1.84% - 1s 0 0 780.36987 0 108 795.00000 780.36987 1.84% - 1s 0 2 780.37001 0 108 795.00000 780.37001 1.84% - 1s * 532 427 34 794.0000000 781.83428 1.53% 17.3 3s * 533 329 32 792.0000000 781.83428 1.28% 17.3 3s 784 472 cutoff 50 792.00000 782.11059 1.25% 18.1 5s * 1187 574 44 791.0000000 782.43210 1.08% 19.3 6s 2815 1342 786.97650 29 78 791.00000 783.95370 0.89% 18.2 10s 4919 2461 788.85714 29 63 791.00000 784.66667 0.80% 17.6 15s * 6568 2991 32 790.0000000 785.00000 0.63% 17.2 18s 7185 3194 786.96206 21 83 790.00000 785.11066 0.62% 17.1 20s 9495 3811 787.75627 30 86 790.00000 785.45894 0.57% 16.9 25s 12175 4507 788.01905 33 83 790.00000 785.76314 0.54% 16.7 30s 15052 5078 786.81375 25 73 790.00000 786.02809 0.50% 16.6 35s 18236 5526 787.23923 26 82 790.00000 786.29114 0.47% 16.3 40s 21320 5812 788.62463 29 77 790.00000 786.50000 0.44% 16.0 45s 25340 6040 cutoff 31 790.00000 786.74430 0.41% 15.7 50s 29315 6054 788.15452 29 73 790.00000 786.97597 0.38% 15.4 55s 33464 5802 788.30862 27 83 790.00000 787.19828 0.35% 15.2 60s 37483 5163 788.76471 34 67 790.00000 787.44444 0.32% 15.0 65s 41119 4256 788.77143 32 61 790.00000 787.67989 0.29% 14.8 70s 44963 2664 cutoff 32 790.00000 788.00000 0.25% 14.6 75s Cutting planes: Gomory: 4 MIR: 1 Zero half: 9 Explored 48859 nodes (693671 simplex iterations) in 79.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(2, 64), (2, 74), (10, 26), (10, 40), (11, 32), (11, 39), (13, 73), (19, 25), (19, 51), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 56), (29, 62), (29, 63), (32, 40), (34, 64), (39, 59), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (59, 73), (63, 74)] adding cut for [(16, 58), (16, 38), (3, 75), (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 488 rows, 2850 columns and 130639 nonzeros Presolve time: 0.09s Presolved: 488 rows, 2850 columns, 130639 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 264 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 799.0000000 779.63636 2.42% - 0s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 0s 0 0 779.93234 0 86 799.00000 779.93234 2.39% - 1s 0 0 779.93234 0 89 799.00000 779.93234 2.39% - 1s 0 0 780.15659 0 91 799.00000 780.15659 2.36% - 1s 0 0 780.25438 0 91 799.00000 780.25438 2.35% - 1s 0 0 780.35032 0 98 799.00000 780.35032 2.33% - 1s 0 0 780.38369 0 100 799.00000 780.38369 2.33% - 1s 0 0 780.40887 0 100 799.00000 780.40887 2.33% - 1s 0 0 780.41613 0 104 799.00000 780.41613 2.33% - 1s 0 0 780.41744 0 107 799.00000 780.41744 2.33% - 1s 0 0 780.41744 0 107 799.00000 780.41744 2.33% - 1s 0 2 780.41887 0 107 799.00000 780.41887 2.33% - 1s H 28 28 794.0000000 780.78781 1.66% 23.1 2s * 178 119 53 791.0000000 781.20311 1.24% 17.2 2s 887 539 786.56000 21 86 791.00000 782.65542 1.05% 20.2 5s 2966 1409 784.78000 17 75 791.00000 784.18064 0.86% 18.7 10s H 4655 2096 790.0000000 784.61607 0.68% 18.4 13s 5069 2240 786.22936 24 77 790.00000 784.73976 0.67% 18.4 15s 7334 2923 cutoff 30 790.00000 785.23934 0.60% 18.3 20s 9590 3458 788.04762 23 76 790.00000 785.53846 0.56% 18.1 25s 12187 3950 786.73362 23 69 790.00000 785.81818 0.53% 17.9 30s 15130 4366 787.20599 28 82 790.00000 786.08120 0.50% 17.7 35s 17703 4592 788.94118 20 78 790.00000 786.28571 0.47% 17.6 40s 21321 4799 788.25848 23 85 790.00000 786.51807 0.44% 17.2 45s 25243 4925 cutoff 27 790.00000 786.71242 0.42% 16.9 50s 29269 4891 788.57653 26 71 790.00000 786.92414 0.39% 16.6 55s 32914 4679 cutoff 25 790.00000 787.08108 0.37% 16.4 60s 36992 4356 cutoff 23 790.00000 787.28060 0.34% 16.1 65s 40611 3883 cutoff 30 790.00000 787.45694 0.32% 15.9 70s 44901 3014 cutoff 36 790.00000 787.72296 0.29% 15.6 75s 47912 1986 cutoff 25 790.00000 788.00000 0.25% 15.4 80s Cutting planes: Gomory: 3 MIR: 1 Zero half: 7 Explored 51163 nodes (769805 simplex iterations) in 83.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+02, best bound 7.900000000000e+02, gap 0.0% adding cut for [(6, 38), (6, 49), (10, 40), (10, 41), (19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (31, 49), (32, 56), (32, 73), (37, 48), (37, 70), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(66, 67), (39, 66), (9, 47), (9, 15), (11, 39), (11, 59), (12, 67), (12, 60), (13, 59), (15, 60)] Optimize a model with 490 rows, 2850 columns and 131159 nonzeros Presolve time: 0.09s Presolved: 490 rows, 2850 columns, 131159 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2525.0000000 Root relaxation: objective 7.796364e+02, 277 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 779.63636 0 86 2525.00000 779.63636 69.1% - 0s Another try with MIP start H 0 0 798.0000000 779.63636 2.30% - 0s 0 0 779.93234 0 89 798.00000 779.93234 2.26% - 0s 0 0 779.93234 0 86 798.00000 779.93234 2.26% - 1s 0 0 779.93234 0 89 798.00000 779.93234 2.26% - 1s 0 0 780.14434 0 92 798.00000 780.14434 2.24% - 1s 0 0 780.17087 0 96 798.00000 780.17087 2.23% - 1s 0 0 780.21932 0 93 798.00000 780.21932 2.23% - 1s 0 0 780.23057 0 96 798.00000 780.23057 2.23% - 1s 0 0 780.24897 0 96 798.00000 780.24897 2.22% - 1s 0 0 780.27858 0 103 798.00000 780.27858 2.22% - 1s 0 0 780.30586 0 99 798.00000 780.30586 2.22% - 1s 0 0 780.30969 0 102 798.00000 780.30969 2.22% - 1s 0 0 780.32703 0 101 798.00000 780.32703 2.21% - 1s 0 0 780.33076 0 102 798.00000 780.33076 2.21% - 1s 0 0 780.33496 0 103 798.00000 780.33496 2.21% - 1s 0 0 780.33819 0 103 798.00000 780.33819 2.21% - 1s 0 0 780.35159 0 104 798.00000 780.35159 2.21% - 2s 0 0 780.35586 0 104 798.00000 780.35586 2.21% - 2s 0 0 780.35971 0 107 798.00000 780.35971 2.21% - 2s 0 0 780.37135 0 102 798.00000 780.37135 2.21% - 2s 0 0 780.37407 0 106 798.00000 780.37407 2.21% - 2s 0 0 780.39117 0 102 798.00000 780.39117 2.21% - 2s 0 0 780.40024 0 103 798.00000 780.40024 2.21% - 2s 0 0 780.40310 0 102 798.00000 780.40310 2.21% - 2s 0 0 780.40310 0 102 798.00000 780.40310 2.21% - 2s 0 2 780.41248 0 102 798.00000 780.41248 2.20% - 2s * 109 98 71 797.0000000 780.57599 2.06% 20.3 2s * 589 393 37 794.0000000 781.22676 1.61% 19.0 3s 703 435 784.74900 9 86 794.00000 781.55873 1.57% 18.7 5s * 1001 531 58 793.0000000 782.10372 1.37% 20.6 7s H 1371 596 792.0000000 782.62919 1.18% 20.6 8s 1921 759 789.49652 29 73 792.00000 783.32674 1.10% 20.5 10s * 2549 1012 38 791.0000000 783.85232 0.90% 19.8 11s * 3991 1500 37 790.0000000 784.45161 0.70% 19.3 14s 4097 1531 785.39953 23 78 790.00000 784.50820 0.70% 19.2 15s 5131 1761 784.50820 35 84 790.00000 784.50820 0.70% 19.9 20s 7117 1844 786.86207 41 69 790.00000 784.67116 0.67% 20.0 25s 9503 1918 788.69890 38 72 790.00000 785.29237 0.60% 19.5 30s Cutting planes: Gomory: 8 MIR: 1 Zero half: 5 Explored 10195 nodes (198066 simplex iterations) in 31.50 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective 7.900000000000e+02, best bound 7.860000000000e+02, gap 0.5063% Gurobi 5.0.1 (linux64) logging started Fri Dec 7 14:50:35 2012