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 2864.0000000 Root relaxation: objective 1.098000e+03, 80 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1098.00000 0 6 2864.00000 1098.00000 61.7% - 0s H 0 0 1134.0000000 1098.00000 3.17% - 0s 0 0 1098.00000 0 6 1134.00000 1098.00000 3.17% - 0s 0 0 1098.00000 0 6 1134.00000 1098.00000 3.17% - 0s H 0 0 1114.0000000 1098.00000 1.44% - 0s 0 0 1098.00000 0 6 1114.00000 1098.00000 1.44% - 0s 0 2 1098.50000 0 6 1114.00000 1098.50000 1.39% - 0s H 1 2 1104.0000000 1098.50000 0.50% 4.0 0s H 3 3 1101.0000000 1098.50000 0.23% 1.3 0s * 6 5 14 1099.0000000 1099.00000 0.0% 14.5 0s Cutting planes: Gomory: 2 MIR: 1 Explored 7 nodes (264 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.099000000000e+03, best bound 1.099000000000e+03, gap 0.0% adding cut for [(2, 64), (2, 74), (11, 32), (11, 39), (12, 60), (12, 67), (15, 54), (15, 60), (19, 25), (19, 51), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(6, 38), (6, 16), (14, 55), (14, 58), (29, 75), (29, 62), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(33, 45), (4, 45), (40, 73), (10, 33), (10, 40), (59, 73)] Optimize a model with 79 rows, 2850 columns and 6199 nonzeros Presolve time: 0.01s Presolved: 79 rows, 2850 columns, 6199 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2254.0000000 Root relaxation: objective 1.106500e+03, 95 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1106.50000 0 12 2254.00000 1106.50000 50.9% - 0s Another try with MIP start H 0 0 1146.0000000 1106.50000 3.45% - 0s 0 0 1107.00000 0 14 1146.00000 1107.00000 3.40% - 0s * 0 0 0 1107.0000000 1107.00000 0.0% - 0s Cutting planes: MIR: 8 Zero half: 2 Explored 0 nodes (115 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.107000000000e+03, best bound 1.107000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 45), (6, 16), (6, 38), (12, 39), (12, 54), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 62), (24, 50), (24, 57), (25, 50), (29, 63), (33, 45), (33, 51), (37, 48), (37, 70), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67), (61, 71), (61, 72), (63, 74), (66, 67), (70, 72)] adding cut for [(32, 56), (40, 73), (10, 40), (10, 26), (11, 32), (11, 59), (26, 56), (59, 73)] Optimize a model with 81 rows, 2850 columns and 7047 nonzeros Presolve time: 0.01s Presolved: 81 rows, 2850 columns, 7047 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.112000e+03, 90 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1112.0000000 1112.00000 0.0% - 0s Explored 0 nodes (90 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.112000000000e+03, best bound 1.112000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 45), (6, 16), (6, 49), (10, 33), (10, 40), (11, 32), (11, 39), (12, 66), (12, 67), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (17, 50), (20, 55), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (32, 73), (33, 45), (39, 66), (40, 73), (42, 43), (42, 44), (43, 65), (48, 49), (60, 67)] adding cut for [(37, 38), (37, 70), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72)] adding cut for [(26, 56), (26, 51), (19, 56), (19, 51)] Optimize a model with 84 rows, 2850 columns and 7704 nonzeros Presolve time: 0.01s Presolved: 84 rows, 2850 columns, 7704 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.115000e+03, 123 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1115.00000 0 14 2864.00000 1115.00000 61.1% - 0s Another try with MIP start H 0 0 1118.0000000 1115.00000 0.27% - 0s H 0 0 1116.0000000 1115.00000 0.09% - 0s Cutting planes: Clique: 1 Zero half: 3 Explored 0 nodes (123 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.116000000000e+03, best bound 1.116000000000e+03, gap 0.0% adding cut for [(6, 16), (6, 38), (10, 33), (10, 40), (11, 32), (11, 59), (12, 66), (12, 67), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (19, 25), (19, 56), (20, 55), (21, 38), (21, 71), (22, 49), (22, 62), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 73), (33, 51), (37, 48), (37, 70), (39, 59), (39, 66), (40, 73), (42, 44), (42, 57), (43, 44), (43, 65), (48, 49), (60, 67), (61, 71), (61, 72), (70, 72)] Optimize a model with 85 rows, 2850 columns and 8650 nonzeros Presolve time: 0.01s Presolved: 85 rows, 2850 columns, 8650 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.123000e+03, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1123.0000000 1123.00000 0.0% - 0s Explored 0 nodes (107 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.123000000000e+03, best bound 1.123000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (11, 32), (11, 39), (12, 66), (12, 67), (15, 36), (15, 60), (17, 50), (17, 64), (19, 25), (19, 51), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (60, 67)] adding cut for [(70, 72), (14, 55), (14, 58), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 48), (22, 75), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(33, 45), (4, 45), (40, 73), (10, 33), (10, 40)] adding cut for [(29, 62), (23, 29), (23, 62)] Optimize a model with 89 rows, 2850 columns and 9073 nonzeros Presolve time: 0.01s Presolved: 89 rows, 2850 columns, 9073 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.125750e+03, 108 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1125.75000 0 30 2864.00000 1125.75000 60.7% - 0s Another try with MIP start H 0 0 1132.0000000 1125.75000 0.55% - 0s H 0 0 1131.0000000 1125.75000 0.46% - 0s H 0 0 1129.0000000 1125.75000 0.29% - 0s 0 0 1126.25000 0 12 1129.00000 1126.25000 0.24% - 0s 0 0 1126.25000 0 28 1129.00000 1126.25000 0.24% - 0s * 0 0 0 1127.0000000 1127.00000 0.0% - 0s Cutting planes: Gomory: 6 Clique: 1 Zero half: 8 Explored 0 nodes (230 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.127000000000e+03, best bound 1.127000000000e+03, gap 0.0% adding cut for [(19, 51), (19, 56), (33, 45), (33, 51), (66, 67), (4, 45), (4, 25), (32, 40), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (15, 20), (15, 60), (17, 50), (25, 50), (26, 56), (39, 66)] adding cut for [(16, 58), (16, 38), (6, 49), (6, 30), (70, 72), (14, 55), (14, 58), (48, 49), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(2, 64), (2, 74), (42, 44), (42, 57), (43, 65), (43, 44), (23, 65), (23, 63), (24, 64), (24, 57)] adding cut for [(22, 75), (22, 62), (29, 75), (29, 62)] Optimize a model with 93 rows, 2850 columns and 9449 nonzeros Presolve time: 0.01s Presolved: 93 rows, 2850 columns, 9449 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.128000e+03, 115 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1128.0000000 1128.00000 0.0% - 0s Explored 0 nodes (115 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.128000000000e+03, best bound 1.128000000000e+03, gap 0.0% adding cut for [(32, 73), (36, 54), (33, 45), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 66), (12, 67), (45, 51), (15, 54), (15, 60), (19, 51), (19, 56), (20, 36), (26, 56), (60, 67)] adding cut for [(2, 64), (2, 44), (42, 43), (42, 44), (43, 65), (17, 50), (25, 50), (25, 57), (24, 64), (24, 57), (29, 62), (29, 63), (23, 65), (23, 62)] adding cut for [(6, 38), (6, 16), (14, 55), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 96 rows, 2850 columns and 9849 nonzeros Presolve time: 0.01s Presolved: 96 rows, 2850 columns, 9849 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.130121e+03, 124 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1130.12121 0 49 2864.00000 1130.12121 60.5% - 0s Another try with MIP start H 0 0 1136.0000000 1130.12121 0.52% - 0s H 0 0 1135.0000000 1130.12121 0.43% - 0s 0 0 1130.57143 0 47 1135.00000 1130.57143 0.39% - 0s 0 0 1130.57143 0 49 1135.00000 1130.57143 0.39% - 0s 0 0 1131.14706 0 53 1135.00000 1131.14706 0.34% - 0s H 0 0 1134.0000000 1131.14706 0.25% - 0s 0 0 1131.50000 0 6 1134.00000 1131.50000 0.22% - 0s H 0 0 1133.0000000 1131.50000 0.13% - 0s 0 1 1131.58966 0 6 1133.00000 1131.58966 0.12% - 0s H 1 1 1132.0000000 1131.58966 0.04% 4.0 0s Cutting planes: Gomory: 5 MIR: 1 Zero half: 2 Explored 1 nodes (285 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.132000000000e+03, best bound 1.132000000000e+03, gap 0.0% adding cut for [(48, 49), (6, 38), (6, 16), (16, 58), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 73), (39, 66), (39, 59), (11, 32), (11, 59), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] adding cut for [(34, 64), (34, 74), (43, 65), (43, 44), (2, 74), (2, 44), (24, 64), (24, 57), (42, 65), (42, 57)] adding cut for [(19, 56), (19, 25), (10, 40), (10, 51), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(22, 75), (22, 62), (23, 29), (23, 63), (29, 62)] Optimize a model with 101 rows, 2850 columns and 10066 nonzeros Presolve time: 0.01s Presolved: 101 rows, 2850 columns, 10066 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.131500e+03, 153 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1131.50000 0 49 2864.00000 1131.50000 60.5% - 0s Another try with MIP start H 0 0 1134.0000000 1131.50000 0.22% - 0s H 0 0 1133.0000000 1131.50000 0.13% - 0s 0 0 cutoff 0 1133.00000 1132.00113 0.09% - 0s Cutting planes: Clique: 1 Zero half: 14 Explored 0 nodes (167 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.133000000000e+03, best bound 1.133000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 38), (14, 58), (16, 30), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 62), (29, 75), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (39, 59), (11, 32), (11, 59), (12, 67), (12, 60), (15, 20), (15, 60), (24, 64), (24, 57), (50, 57), (20, 55), (25, 50), (26, 51), (26, 56)] Optimize a model with 103 rows, 2850 columns and 10556 nonzeros Presolve time: 0.01s Presolved: 103 rows, 2850 columns, 10556 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.131643e+03, 167 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1131.64286 0 61 2864.00000 1131.64286 60.5% - 0s Another try with MIP start H 0 0 1140.0000000 1131.64286 0.73% - 0s H 0 0 1138.0000000 1131.64286 0.56% - 0s 0 0 1132.25424 0 59 1138.00000 1132.25424 0.50% - 0s 0 0 1132.25424 0 61 1138.00000 1132.25424 0.50% - 0s 0 0 1132.41667 0 55 1138.00000 1132.41667 0.49% - 0s 0 0 1132.56780 0 58 1138.00000 1132.56780 0.48% - 0s 0 0 1132.89524 0 68 1138.00000 1132.89524 0.45% - 0s 0 0 1132.89524 0 72 1138.00000 1132.89524 0.45% - 0s 0 0 1132.89679 0 70 1138.00000 1132.89679 0.45% - 0s 0 0 1132.89679 0 74 1138.00000 1132.89679 0.45% - 0s 0 0 1132.89679 0 74 1138.00000 1132.89679 0.45% - 0s H 0 0 1137.0000000 1132.89679 0.36% - 0s H 0 0 1134.0000000 1132.89679 0.10% - 0s 0 0 cutoff 0 1134.00000 1134.00000 0.0% - 0s Cutting planes: Gomory: 2 Zero half: 8 Explored 1 nodes (390 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.134000000000e+03, best bound 1.134000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (6, 30), (6, 38), (21, 38), (21, 71), (22, 48), (22, 75), (23, 62), (23, 65), (29, 63), (29, 75), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (48, 49), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 73), (66, 67), (4, 45), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 67), (12, 60), (45, 51), (15, 60), (19, 51), (19, 56), (26, 56)] adding cut for [(34, 64), (17, 50), (25, 50), (25, 57), (24, 64), (24, 57)] Optimize a model with 106 rows, 2850 columns and 10966 nonzeros Presolve time: 0.01s Presolved: 106 rows, 2850 columns, 10966 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.132000e+03, 165 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1132.00000 0 24 2864.00000 1132.00000 60.5% - 0s Another try with MIP start H 0 0 1181.0000000 1132.00000 4.15% - 0s 0 0 1132.80556 0 60 1181.00000 1132.80556 4.08% - 0s H 0 0 1136.0000000 1132.80556 0.28% - 0s 0 0 1132.90000 0 57 1136.00000 1132.90000 0.27% - 0s 0 0 1132.90000 0 23 1136.00000 1132.90000 0.27% - 0s 0 0 1132.97535 0 63 1136.00000 1132.97535 0.27% - 0s 0 0 1133.18175 0 65 1136.00000 1133.18175 0.25% - 0s 0 0 1133.27079 0 60 1136.00000 1133.27079 0.24% - 0s 0 0 1133.35184 0 72 1136.00000 1133.35184 0.23% - 0s 0 0 1133.59030 0 71 1136.00000 1133.59030 0.21% - 0s 0 0 1133.62527 0 71 1136.00000 1133.62527 0.21% - 0s 0 0 1133.62527 0 74 1136.00000 1133.62527 0.21% - 0s 0 0 1133.63407 0 73 1136.00000 1133.63407 0.21% - 0s 0 0 1133.69767 0 65 1136.00000 1133.69767 0.20% - 0s H 0 0 1135.0000000 1133.69767 0.11% - 0s 0 0 cutoff 0 1135.00000 1135.00000 0.0% - 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 6 Explored 1 nodes (413 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.135000000000e+03, best bound 1.135000000000e+03, gap 0.0% adding cut for [(6, 38), (6, 30), (62, 70), (29, 62), (29, 63), (21, 38), (21, 71), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(2, 34), (2, 23), (43, 65), (43, 44), (34, 74), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 59), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(39, 66), (12, 66), (12, 67), (15, 54), (15, 60), (60, 67)] Optimize a model with 110 rows, 2850 columns and 11153 nonzeros Presolve time: 0.01s Presolved: 110 rows, 2850 columns, 11153 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.133643e+03, 165 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1133.64286 0 63 2864.00000 1133.64286 60.4% - 0s Another try with MIP start H 0 0 1139.0000000 1133.64286 0.47% - 0s 0 0 1134.18750 0 65 1139.00000 1134.18750 0.42% - 0s 0 0 1134.18750 0 63 1139.00000 1134.18750 0.42% - 0s 0 0 1134.59459 0 63 1139.00000 1134.59459 0.39% - 0s 0 0 1134.61458 0 65 1139.00000 1134.61458 0.39% - 0s 0 0 1134.63095 0 70 1139.00000 1134.63095 0.38% - 0s 0 0 1134.63095 0 72 1139.00000 1134.63095 0.38% - 0s 0 0 1134.63095 0 72 1139.00000 1134.63095 0.38% - 0s 0 2 1135.00000 0 72 1139.00000 1135.00000 0.35% - 0s * 10 6 7 1136.0000000 1136.00000 0.0% 11.2 0s Cutting planes: Gomory: 6 MIR: 1 Zero half: 2 Explored 11 nodes (488 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.136000000000e+03, best bound 1.136000000000e+03, gap 0.0% adding cut for [(2, 23), (2, 44), (10, 26), (10, 40), (11, 32), (11, 59), (12, 60), (12, 67), (15, 36), (15, 60), (19, 25), (19, 51), (20, 36), (23, 63), (24, 57), (24, 64), (25, 50), (26, 56), (29, 63), (29, 75), (32, 40), (39, 59), (39, 66), (42, 57), (42, 65), (43, 44), (43, 65), (50, 64), (51, 56), (66, 67)] adding cut for [(48, 49), (6, 38), (6, 16), (14, 55), (14, 58), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] Optimize a model with 112 rows, 2850 columns and 11738 nonzeros Presolve time: 0.02s Presolved: 112 rows, 2850 columns, 11738 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.133722e+03, 187 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1133.72222 0 60 2864.00000 1133.72222 60.4% - 0s Another try with MIP start H 0 0 1149.0000000 1133.72222 1.33% - 0s 0 0 1134.42593 0 68 1149.00000 1134.42593 1.27% - 0s 0 0 1134.42593 0 59 1149.00000 1134.42593 1.27% - 0s 0 0 1134.63692 0 76 1149.00000 1134.63692 1.25% - 0s 0 0 1134.69816 0 82 1149.00000 1134.69816 1.24% - 0s 0 0 1134.70444 0 85 1149.00000 1134.70444 1.24% - 0s 0 0 1134.70444 0 84 1149.00000 1134.70444 1.24% - 0s H 0 0 1140.0000000 1134.70444 0.46% - 0s H 0 0 1138.0000000 1134.70444 0.29% - 0s 0 2 1134.80094 0 84 1138.00000 1134.80094 0.28% - 0s * 7 4 6 1137.0000000 1135.80085 0.11% 13.4 0s Cutting planes: Gomory: 5 MIR: 2 Zero half: 4 Explored 16 nodes (600 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.137000000000e+03, best bound 1.137000000000e+03, gap 0.0% adding cut for [(32, 73), (32, 56), (42, 44), (42, 57), (43, 65), (43, 44), (19, 51), (19, 25), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (23, 65), (23, 62), (63, 74)] adding cut for [(6, 38), (6, 30), (16, 58), (16, 30), (21, 38), (21, 71), (22, 48), (22, 75), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(39, 66), (11, 39), (11, 59), (12, 66), (12, 67), (15, 36), (15, 60), (60, 67)] adding cut for [(33, 45), (10, 40), (10, 33), (4, 45)] adding cut for [(2, 64), (2, 34), (34, 64)] Optimize a model with 117 rows, 2850 columns and 12049 nonzeros Presolve time: 0.02s Presolved: 117 rows, 2850 columns, 12049 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.134705e+03, 160 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1134.70455 0 54 2864.00000 1134.70455 60.4% - 0s Another try with MIP start H 0 0 1148.0000000 1134.70455 1.16% - 0s H 0 0 1143.0000000 1134.70455 0.73% - 0s H 0 0 1141.0000000 1134.70455 0.55% - 0s 0 0 1135.44444 0 72 1141.00000 1135.44444 0.49% - 0s 0 0 1135.44444 0 54 1141.00000 1135.44444 0.49% - 0s 0 0 1136.00000 0 73 1141.00000 1136.00000 0.44% - 0s H 0 0 1140.0000000 1136.00000 0.35% - 0s 0 0 1136.14815 0 74 1140.00000 1136.14815 0.34% - 0s 0 2 1136.84874 0 72 1140.00000 1136.84874 0.28% - 0s H 14 10 1138.0000000 1136.88618 0.10% 0.6 0s Cutting planes: Gomory: 5 MIR: 1 Zero half: 3 Explored 16 nodes (876 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.138000000000e+03, best bound 1.138000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (43, 65), (43, 44), (42, 44), (42, 57), (11, 32), (11, 59), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (23, 65), (23, 63)] adding cut for [(48, 49), (37, 72), (37, 70), (14, 55), (14, 58), (29, 75), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (12, 67), (12, 60), (15, 20), (15, 60)] Optimize a model with 120 rows, 2850 columns and 12342 nonzeros Presolve time: 0.02s Presolved: 120 rows, 2850 columns, 12342 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.134705e+03, 175 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1134.70455 0 51 2864.00000 1134.70455 60.4% - 0s Another try with MIP start H 0 0 1143.0000000 1134.70455 0.73% - 0s H 0 0 1141.0000000 1134.70455 0.55% - 0s 0 0 1135.44444 0 72 1141.00000 1135.44444 0.49% - 0s 0 0 1135.44444 0 52 1141.00000 1135.44444 0.49% - 0s 0 0 1136.00000 0 73 1141.00000 1136.00000 0.44% - 0s 0 0 1136.16181 0 76 1141.00000 1136.16181 0.42% - 0s 0 0 1136.20803 0 79 1141.00000 1136.20803 0.42% - 0s 0 0 1136.22786 0 83 1141.00000 1136.22786 0.42% - 0s 0 2 1136.40712 0 82 1141.00000 1136.40712 0.40% - 0s * 14 9 12 1139.0000000 1137.00000 0.18% 9.1 0s * 21 4 7 1138.0000000 1137.00000 0.09% 8.2 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 6 Explored 26 nodes (646 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.138000000000e+03, best bound 1.138000000000e+03, gap 0.0% adding cut for [(2, 34), (2, 64), (6, 30), (6, 38), (21, 38), (21, 71), (22, 48), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 73), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (39, 59), (12, 67), (12, 60), (15, 60)] Optimize a model with 123 rows, 2850 columns and 12639 nonzeros Presolve time: 0.02s Presolved: 123 rows, 2850 columns, 12639 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.134705e+03, 191 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1134.70455 0 53 2864.00000 1134.70455 60.4% - 0s Another try with MIP start H 0 0 1148.0000000 1134.70455 1.16% - 0s H 0 0 1143.0000000 1134.70455 0.73% - 0s H 0 0 1142.0000000 1134.70455 0.64% - 0s 0 0 1135.44444 0 72 1142.00000 1135.44444 0.57% - 0s 0 0 1135.44444 0 51 1142.00000 1135.44444 0.57% - 0s 0 0 1136.00000 0 68 1142.00000 1136.00000 0.53% - 0s 0 0 1136.03316 0 78 1142.00000 1136.03316 0.52% - 0s 0 0 1136.21608 0 76 1142.00000 1136.21608 0.51% - 0s 0 0 1136.21784 0 81 1142.00000 1136.21784 0.51% - 0s 0 0 1136.21784 0 81 1142.00000 1136.21784 0.51% - 0s H 0 0 1139.0000000 1136.21784 0.24% - 0s 0 1 1136.22997 0 81 1139.00000 1136.22997 0.24% - 0s Cutting planes: Gomory: 4 MIR: 1 Zero half: 9 Explored 49 nodes (984 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.139000000000e+03, best bound 1.139000000000e+03, gap 0.0% adding cut for [(6, 38), (6, 16), (42, 44), (42, 57), (43, 65), (43, 44), (14, 58), (16, 58), (21, 38), (21, 71), (23, 65), (23, 62), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (36, 54), (39, 66), (11, 32), (11, 39), (12, 67), (12, 54), (15, 36), (15, 60), (17, 50), (20, 55), (55, 60), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 34), (2, 63), (34, 74), (48, 49), (22, 75), (22, 48), (29, 75), (29, 63)] Optimize a model with 126 rows, 2850 columns and 13036 nonzeros Presolve time: 0.02s Presolved: 126 rows, 2850 columns, 13036 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.134760e+03, 206 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1134.76000 0 69 2864.00000 1134.76000 60.4% - 0s Another try with MIP start H 0 0 1149.0000000 1134.76000 1.24% - 0s 0 0 1135.57540 0 76 1149.00000 1135.57540 1.17% - 0s 0 0 1135.57540 0 69 1149.00000 1135.57540 1.17% - 0s 0 0 1135.86207 0 72 1149.00000 1135.86207 1.14% - 0s 0 0 1136.00108 0 78 1149.00000 1136.00108 1.13% - 0s 0 0 1136.07512 0 79 1149.00000 1136.07512 1.12% - 0s 0 0 1136.16966 0 79 1149.00000 1136.16966 1.12% - 0s 0 0 1136.24291 0 77 1149.00000 1136.24291 1.11% - 0s 0 0 1136.26382 0 80 1149.00000 1136.26382 1.11% - 0s 0 0 1136.29215 0 78 1149.00000 1136.29215 1.11% - 0s 0 0 1136.29215 0 78 1149.00000 1136.29215 1.11% - 0s 0 0 1136.29215 0 78 1149.00000 1136.29215 1.11% - 0s H 0 0 1143.0000000 1136.29215 0.59% - 0s 0 2 1136.37644 0 78 1143.00000 1136.37644 0.58% - 0s * 18 16 13 1140.0000000 1136.87500 0.27% 15.4 0s * 40 8 8 1139.0000000 1137.33333 0.15% 14.0 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 7 Explored 55 nodes (1210 simplex iterations) in 0.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.139000000000e+03, best bound 1.139000000000e+03, gap 0.0% adding cut for [(6, 38), (6, 16), (42, 44), (42, 57), (43, 65), (43, 44), (29, 62), (16, 58), (17, 64), (21, 38), (21, 71), (23, 65), (23, 29), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 56), (4, 45), (4, 50), (11, 32), (11, 59), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (12, 67), (12, 60), (15, 60)] Optimize a model with 129 rows, 2850 columns and 13316 nonzeros Presolve time: 0.02s Presolved: 129 rows, 2850 columns, 13316 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.135429e+03, 189 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1135.42857 0 62 2864.00000 1135.42857 60.4% - 0s Another try with MIP start H 0 0 1156.0000000 1135.42857 1.78% - 0s 0 0 1136.06375 0 69 1156.00000 1136.06375 1.72% - 0s 0 0 1136.06375 0 62 1156.00000 1136.06375 1.72% - 0s 0 0 1136.79219 0 75 1156.00000 1136.79219 1.66% - 0s 0 0 1136.84608 0 80 1156.00000 1136.84608 1.66% - 0s 0 0 1136.93098 0 79 1156.00000 1136.93098 1.65% - 0s 0 0 1137.00191 0 83 1156.00000 1137.00191 1.64% - 0s 0 0 1137.03102 0 86 1156.00000 1137.03102 1.64% - 0s 0 0 1137.05212 0 87 1156.00000 1137.05212 1.64% - 0s 0 0 1137.07551 0 86 1156.00000 1137.07551 1.64% - 0s 0 0 1137.07674 0 86 1156.00000 1137.07674 1.64% - 0s 0 0 1137.07674 0 84 1156.00000 1137.07674 1.64% - 0s H 0 0 1142.0000000 1137.07674 0.43% - 0s 0 2 1137.20420 0 84 1142.00000 1137.20420 0.42% - 0s * 46 8 4 1140.0000000 1138.18675 0.16% 12.2 0s Cutting planes: Gomory: 3 Zero half: 12 Explored 61 nodes (1135 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.140000000000e+03, best bound 1.140000000000e+03, gap 0.0% adding cut for [(2, 34), (2, 44), (6, 16), (6, 38), (10, 40), (10, 51), (11, 32), (11, 39), (12, 54), (12, 67), (14, 28), (14, 58), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (23, 63), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (29, 63), (32, 40), (34, 64), (37, 70), (37, 72), (39, 66), (42, 43), (42, 44), (43, 65), (50, 57), (61, 71), (61, 72), (62, 70), (66, 67)] Optimize a model with 130 rows, 2850 columns and 14096 nonzeros Presolve time: 0.02s Presolved: 130 rows, 2850 columns, 14096 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.135552e+03, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1135.55172 0 69 2864.00000 1135.55172 60.4% - 0s Another try with MIP start H 0 0 1143.0000000 1135.55172 0.65% - 0s 0 0 1136.13370 0 72 1143.00000 1136.13370 0.60% - 0s 0 0 1136.13370 0 69 1143.00000 1136.13370 0.60% - 0s 0 0 1136.63068 0 72 1143.00000 1136.63068 0.56% - 0s 0 0 1136.94196 0 72 1143.00000 1136.94196 0.53% - 0s 0 0 1137.02738 0 83 1143.00000 1137.02738 0.52% - 0s 0 0 1137.12774 0 86 1143.00000 1137.12774 0.51% - 0s 0 0 1137.21539 0 88 1143.00000 1137.21539 0.51% - 0s 0 0 1137.23226 0 89 1143.00000 1137.23226 0.50% - 0s 0 0 1137.26784 0 87 1143.00000 1137.26784 0.50% - 0s 0 0 1137.27105 0 90 1143.00000 1137.27105 0.50% - 0s 0 0 1137.27105 0 89 1143.00000 1137.27105 0.50% - 0s 0 2 1137.31123 0 89 1143.00000 1137.31123 0.50% - 0s * 9 6 9 1140.0000000 1138.01465 0.17% 13.8 0s Cutting planes: Gomory: 1 Zero half: 14 Explored 24 nodes (850 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.140000000000e+03, best bound 1.140000000000e+03, gap 0.0% adding cut for [(70, 72), (14, 58), (29, 75), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(33, 45), (4, 45), (4, 50), (10, 51), (10, 40), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (23, 65), (23, 63), (24, 64), (24, 57)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (12, 67), (12, 54)] Optimize a model with 134 rows, 2850 columns and 14329 nonzeros Presolve time: 0.02s Presolved: 134 rows, 2850 columns, 14329 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.136771e+03, 223 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1136.77145 0 71 2864.00000 1136.77145 60.3% - 0s Another try with MIP start H 0 0 1144.0000000 1136.77145 0.63% - 0s 0 0 1137.54028 0 71 1144.00000 1137.54028 0.56% - 0s 0 0 1137.54028 0 71 1144.00000 1137.54028 0.56% - 0s 0 0 1137.87475 0 74 1144.00000 1137.87475 0.54% - 0s 0 0 1138.08588 0 83 1144.00000 1138.08588 0.52% - 0s 0 0 1138.15052 0 85 1144.00000 1138.15052 0.51% - 0s 0 0 1138.18429 0 86 1144.00000 1138.18429 0.51% - 0s 0 0 1138.20890 0 91 1144.00000 1138.20890 0.51% - 0s 0 0 1138.20890 0 90 1144.00000 1138.20890 0.51% - 0s 0 2 1138.21772 0 90 1144.00000 1138.21772 0.51% - 0s * 5 5 4 1140.0000000 1138.76360 0.11% 19.8 0s Cutting planes: Gomory: 6 Zero half: 8 Explored 10 nodes (660 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.140000000000e+03, best bound 1.140000000000e+03, gap 0.0% adding cut for [(48, 49), (6, 38), (6, 16), (62, 70), (29, 75), (29, 62), (16, 58), (21, 38), (21, 71), (22, 48), (22, 75), (61, 71), (61, 72), (30, 58), (37, 72), (37, 70)] adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (40, 73), (10, 40), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 23), (42, 65), (42, 57), (43, 65), (43, 44), (23, 63), (24, 64), (24, 57)] adding cut for [(66, 67), (39, 66), (11, 39), (11, 59), (12, 67), (12, 54)] Optimize a model with 138 rows, 2850 columns and 14586 nonzeros Presolve time: 0.02s Presolved: 138 rows, 2850 columns, 14586 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.137243e+03, 226 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1137.24250 0 71 2864.00000 1137.24250 60.3% - 0s Another try with MIP start H 0 0 1148.0000000 1137.24250 0.94% - 0s H 0 0 1146.0000000 1137.24250 0.76% - 0s 0 0 1138.41058 0 84 1146.00000 1138.41058 0.66% - 0s 0 0 1138.41058 0 71 1146.00000 1138.41058 0.66% - 0s 0 0 1138.41667 0 85 1146.00000 1138.41667 0.66% - 0s 0 0 1138.42032 0 87 1146.00000 1138.42032 0.66% - 0s 0 0 1138.45426 0 88 1146.00000 1138.45426 0.66% - 0s 0 0 1138.50101 0 90 1146.00000 1138.50101 0.65% - 0s 0 0 1138.52702 0 90 1146.00000 1138.52702 0.65% - 0s 0 0 1138.59672 0 89 1146.00000 1138.59672 0.65% - 0s 0 0 1138.61642 0 89 1146.00000 1138.61642 0.64% - 0s 0 0 1138.68988 0 91 1146.00000 1138.68988 0.64% - 0s 0 0 1138.70617 0 92 1146.00000 1138.70617 0.64% - 0s 0 0 1138.70617 0 91 1146.00000 1138.70617 0.64% - 0s 0 2 1138.70854 0 91 1146.00000 1138.70854 0.64% - 0s * 14 11 11 1142.0000000 1139.04545 0.26% 16.4 0s Cutting planes: Gomory: 2 Zero half: 16 Explored 84 nodes (1365 simplex iterations) in 0.36 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.142000000000e+03, best bound 1.142000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 23), (37, 70), (37, 72), (42, 65), (42, 57), (43, 65), (43, 44), (17, 64), (21, 71), (21, 38), (23, 62), (24, 64), (24, 57), (6, 38), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 56), (33, 45), (4, 45), (4, 50), (39, 59), (11, 32), (11, 39), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (16, 30), (55, 60)] adding cut for [(48, 49), (22, 75), (22, 48), (29, 75), (29, 63)] adding cut for [(66, 67), (12, 66), (12, 67)] Optimize a model with 143 rows, 2850 columns and 14881 nonzeros Presolve time: 0.02s Presolved: 143 rows, 2850 columns, 14881 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.137291e+03, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1137.29139 0 78 2864.00000 1137.29139 60.3% - 0s Another try with MIP start H 0 0 1148.0000000 1137.29139 0.93% - 0s H 0 0 1146.0000000 1137.29139 0.76% - 0s 0 0 1138.16297 0 85 1146.00000 1138.16297 0.68% - 0s 0 0 1138.16297 0 77 1146.00000 1138.16297 0.68% - 0s 0 0 1138.46923 0 87 1146.00000 1138.46923 0.66% - 0s 0 0 1138.48277 0 89 1146.00000 1138.48277 0.66% - 0s 0 0 1138.62514 0 87 1146.00000 1138.62514 0.64% - 0s 0 0 1138.63415 0 90 1146.00000 1138.63415 0.64% - 0s 0 0 1138.64417 0 86 1146.00000 1138.64417 0.64% - 0s 0 0 1138.65233 0 90 1146.00000 1138.65233 0.64% - 0s 0 0 1138.65233 0 90 1146.00000 1138.65233 0.64% - 0s 0 2 1138.67108 0 89 1146.00000 1138.67108 0.64% - 0s * 24 16 20 1145.0000000 1139.38453 0.49% 12.1 0s * 38 20 12 1143.0000000 1139.52289 0.30% 12.5 0s * 53 12 4 1142.0000000 1139.65217 0.21% 12.2 0s Cutting planes: Gomory: 2 Zero half: 9 Explored 76 nodes (1364 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.142000000000e+03, best bound 1.142000000000e+03, gap 0.0% adding cut for [(32, 40), (19, 56), (19, 25), (17, 64), (10, 40), (10, 51), (11, 32), (11, 59), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (59, 73)] adding cut for [(6, 38), (6, 16), (29, 75), (29, 62), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(66, 67), (36, 54), (39, 66), (12, 67), (12, 54), (14, 55), (15, 36), (15, 60), (55, 60)] adding cut for [(34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (23, 65), (23, 63)] Optimize a model with 147 rows, 2850 columns and 15187 nonzeros Presolve time: 0.02s Presolved: 147 rows, 2850 columns, 15187 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138118e+03, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.11781 0 73 2864.00000 1138.11781 60.3% - 0s Another try with MIP start H 0 0 1144.0000000 1138.11781 0.51% - 0s 0 0 1138.61898 0 78 1144.00000 1138.61898 0.47% - 0s 0 0 1138.61898 0 73 1144.00000 1138.61898 0.47% - 0s 0 0 1139.31787 0 77 1144.00000 1139.31787 0.41% - 0s 0 0 1139.35757 0 84 1144.00000 1139.35757 0.41% - 0s 0 0 1139.37086 0 87 1144.00000 1139.37086 0.40% - 0s 0 0 1139.37802 0 85 1144.00000 1139.37802 0.40% - 0s 0 0 1139.39191 0 85 1144.00000 1139.39191 0.40% - 0s 0 0 1139.40022 0 80 1144.00000 1139.40022 0.40% - 0s 0 0 1139.41202 0 85 1144.00000 1139.41202 0.40% - 0s 0 2 1139.46131 0 85 1144.00000 1139.46131 0.40% - 0s * 17 8 14 1143.0000000 1140.01852 0.26% 9.8 0s * 29 5 11 1142.0000000 1140.05923 0.17% 9.3 0s Cutting planes: Gomory: 4 MIR: 1 Zero half: 5 Explored 41 nodes (870 simplex iterations) in 0.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.142000000000e+03, best bound 1.142000000000e+03, gap 0.0% adding cut for [(32, 40), (34, 74), (11, 32), (11, 39), (39, 59), (43, 65), (43, 44), (2, 74), (2, 44), (19, 56), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56), (10, 51), (10, 40), (42, 65), (42, 57)] adding cut for [(6, 38), (29, 62), (21, 38), (21, 71), (23, 29), (23, 63), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(66, 67), (36, 54), (12, 66), (15, 54), (15, 60), (60, 67)] Optimize a model with 150 rows, 2850 columns and 15484 nonzeros Presolve time: 0.02s Presolved: 150 rows, 2850 columns, 15484 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138118e+03, 219 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.11781 0 73 2864.00000 1138.11781 60.3% - 0s Another try with MIP start H 0 0 1149.0000000 1138.11781 0.95% - 0s 0 0 1138.61898 0 78 1149.00000 1138.61898 0.90% - 0s 0 0 1138.61898 0 73 1149.00000 1138.61898 0.90% - 0s 0 0 1139.01815 0 80 1149.00000 1139.01815 0.87% - 0s H 0 0 1145.0000000 1139.01815 0.52% - 0s 0 0 1139.48837 0 85 1145.00000 1139.48837 0.48% - 0s 0 2 1139.94282 0 85 1145.00000 1139.94282 0.44% - 0s * 70 14 28 1144.0000000 1140.11073 0.34% 15.0 0s * 128 16 19 1143.0000000 1141.08571 0.17% 13.5 0s Cutting planes: Gomory: 16 MIR: 2 Zero half: 7 Explored 165 nodes (2467 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.143000000000e+03, best bound 1.143000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 23), (37, 70), (37, 72), (42, 65), (42, 57), (43, 65), (43, 44), (61, 71), (61, 72), (21, 71), (21, 38), (23, 29), (24, 64), (24, 57), (6, 38), (29, 62), (62, 70)] adding cut for [(32, 56), (39, 59), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (26, 56)] adding cut for [(66, 67), (12, 66), (15, 54), (15, 60), (60, 67)] adding cut for [(33, 51), (17, 50), (19, 51), (19, 25), (25, 50)] Optimize a model with 154 rows, 2850 columns and 15721 nonzeros Presolve time: 0.02s Presolved: 154 rows, 2850 columns, 15721 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138202e+03, 224 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.20161 0 75 2864.00000 1138.20161 60.3% - 0s Another try with MIP start H 0 0 1153.0000000 1138.20161 1.28% - 0s H 0 0 1149.0000000 1138.20161 0.94% - 0s 0 0 1138.85876 0 81 1149.00000 1138.85876 0.88% - 0s 0 0 1138.85876 0 73 1149.00000 1138.85876 0.88% - 0s 0 0 1139.39615 0 82 1149.00000 1139.39615 0.84% - 0s 0 0 1139.90521 0 75 1149.00000 1139.90521 0.79% - 0s 0 0 1139.93237 0 81 1149.00000 1139.93237 0.79% - 0s 0 0 1139.93540 0 81 1149.00000 1139.93540 0.79% - 0s 0 0 1139.95193 0 84 1149.00000 1139.95193 0.79% - 0s 0 0 1139.95935 0 87 1149.00000 1139.95935 0.79% - 0s 0 2 1139.96193 0 87 1149.00000 1139.96193 0.79% - 0s H 27 26 1147.0000000 1140.34693 0.58% 12.8 0s * 59 38 21 1146.0000000 1140.67368 0.46% 10.9 0s * 100 49 13 1145.0000000 1140.80000 0.37% 11.0 0s * 120 36 16 1144.0000000 1140.86441 0.27% 10.7 0s * 163 13 6 1143.0000000 1141.33333 0.15% 10.7 0s Cutting planes: Gomory: 4 MIR: 2 Zero half: 14 Explored 184 nodes (2416 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.143000000000e+03, best bound 1.143000000000e+03, gap 0.0% adding cut for [(4, 25), (4, 45), (11, 32), (11, 39), (12, 54), (12, 67), (19, 51), (19, 56), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 32), (26, 56), (29, 62), (29, 63), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (50, 64), (66, 67)] adding cut for [(6, 38), (6, 49), (21, 38), (21, 71), (22, 75), (22, 48), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] Optimize a model with 156 rows, 2850 columns and 16112 nonzeros Presolve time: 0.02s Presolved: 156 rows, 2850 columns, 16112 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138202e+03, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.20161 0 73 2864.00000 1138.20161 60.3% - 0s Another try with MIP start H 0 0 1151.0000000 1138.20161 1.11% - 0s 0 0 1138.78977 0 78 1151.00000 1138.78977 1.06% - 0s 0 0 1138.78977 0 75 1151.00000 1138.78977 1.06% - 0s 0 0 1139.39615 0 82 1151.00000 1139.39615 1.01% - 0s 0 0 1139.90793 0 76 1151.00000 1139.90793 0.96% - 0s 0 0 1139.93675 0 82 1151.00000 1139.93675 0.96% - 0s 0 0 1139.95297 0 82 1151.00000 1139.95297 0.96% - 0s 0 0 1139.97184 0 79 1151.00000 1139.97184 0.96% - 0s 0 0 1139.98949 0 85 1151.00000 1139.98949 0.96% - 0s 0 0 1139.98949 0 84 1151.00000 1139.98949 0.96% - 0s H 0 0 1146.0000000 1139.98949 0.52% - 0s 0 2 1139.99030 0 82 1146.00000 1139.99030 0.52% - 0s H 139 34 1144.0000000 1141.52055 0.22% 11.9 0s * 215 1 10 1143.0000000 1143.00000 0.0% 10.9 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 13 Explored 216 nodes (2875 simplex iterations) in 0.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.143000000000e+03, best bound 1.143000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (14, 28), (14, 55), (15, 54), (15, 60), (16, 38), (16, 58), (20, 55), (20, 60), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (28, 58), (29, 62), (34, 74), (37, 48), (37, 70), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(19, 56), (19, 25), (17, 64), (10, 40), (10, 51), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (12, 67)] Optimize a model with 159 rows, 2850 columns and 16577 nonzeros Presolve time: 0.02s Presolved: 159 rows, 2850 columns, 16577 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138202e+03, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.20161 0 75 2864.00000 1138.20161 60.3% - 0s Another try with MIP start H 0 0 1150.0000000 1138.20161 1.03% - 0s 0 0 1138.85876 0 81 1150.00000 1138.85876 0.97% - 0s 0 0 1138.85876 0 75 1150.00000 1138.85876 0.97% - 0s 0 0 1139.72253 0 79 1150.00000 1139.72253 0.89% - 0s 0 0 1139.94187 0 81 1150.00000 1139.94187 0.87% - 0s 0 0 1139.94776 0 84 1150.00000 1139.94776 0.87% - 0s 0 0 1139.95423 0 83 1150.00000 1139.95423 0.87% - 0s 0 0 1139.95849 0 86 1150.00000 1139.95849 0.87% - 0s H 0 0 1147.0000000 1139.95849 0.61% - 0s 0 2 1140.00008 0 86 1147.00000 1140.00008 0.61% - 0s H 17 17 1144.0000000 1140.55901 0.30% 12.7 0s Cutting planes: Gomory: 4 MIR: 3 Zero half: 7 Explored 189 nodes (2472 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.144000000000e+03, best bound 1.144000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 64), (4, 45), (19, 25), (19, 56), (22, 62), (22, 75), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (29, 62), (33, 45), (33, 51), (42, 43), (42, 44), (43, 65), (50, 57)] adding cut for [(48, 49), (70, 72), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 40), (10, 40), (11, 32), (11, 59), (59, 73)] adding cut for [(14, 55), (15, 36), (15, 60), (20, 55), (20, 60)] adding cut for [(66, 67), (12, 67), (12, 54), (39, 66)] Optimize a model with 164 rows, 2850 columns and 16903 nonzeros Presolve time: 0.02s Presolved: 164 rows, 2850 columns, 16903 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138233e+03, 215 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.23260 0 75 2864.00000 1138.23260 60.3% - 0s Another try with MIP start H 0 0 1147.0000000 1138.23260 0.76% - 0s 0 0 1138.94459 0 82 1147.00000 1138.94459 0.70% - 0s 0 0 1138.94459 0 76 1147.00000 1138.94459 0.70% - 0s 0 0 1139.26201 0 81 1147.00000 1139.26201 0.67% - 0s 0 0 1139.33963 0 84 1147.00000 1139.33963 0.67% - 0s 0 0 1139.37241 0 85 1147.00000 1139.37241 0.67% - 0s 0 0 1139.37577 0 88 1147.00000 1139.37577 0.66% - 0s 0 0 1139.37577 0 88 1147.00000 1139.37577 0.66% - 0s 0 2 1139.38126 0 88 1147.00000 1139.38126 0.66% - 0s * 13 13 9 1144.0000000 1139.91699 0.36% 14.5 0s Cutting planes: Gomory: 3 MIR: 4 Zero half: 9 Explored 127 nodes (1717 simplex iterations) in 0.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.144000000000e+03, best bound 1.144000000000e+03, gap 0.0% adding cut for [(6, 38), (29, 62), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 63), (63, 74), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(19, 56), (19, 25), (33, 51), (40, 73), (10, 33), (10, 40), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 34), (42, 65), (42, 57), (43, 65), (43, 44), (24, 64), (24, 57)] adding cut for [(12, 67), (12, 54), (15, 36), (15, 60), (60, 67)] adding cut for [(32, 66), (11, 32), (11, 59), (39, 66)] Optimize a model with 169 rows, 2850 columns and 17124 nonzeros Presolve time: 0.02s Presolved: 169 rows, 2850 columns, 17124 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.138788e+03, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1138.78798 0 75 2864.00000 1138.78798 60.2% - 0s Another try with MIP start H 0 0 1150.0000000 1138.78798 0.97% - 0s 0 0 1139.57467 0 84 1150.00000 1139.57467 0.91% - 0s 0 0 1139.57467 0 75 1150.00000 1139.57467 0.91% - 0s 0 0 1140.02750 0 79 1150.00000 1140.02750 0.87% - 0s 0 0 1140.08063 0 82 1150.00000 1140.08063 0.86% - 0s 0 0 1140.10214 0 87 1150.00000 1140.10214 0.86% - 0s 0 0 1140.10534 0 89 1150.00000 1140.10534 0.86% - 0s 0 0 1140.10534 0 89 1150.00000 1140.10534 0.86% - 0s 0 2 1140.12277 0 89 1150.00000 1140.12277 0.86% - 0s * 29 23 24 1149.0000000 1140.85945 0.71% 12.8 0s H 60 46 1147.0000000 1140.99375 0.52% 11.6 0s * 108 62 13 1146.0000000 1141.19380 0.42% 11.4 0s * 174 64 22 1145.0000000 1141.42308 0.31% 11.0 0s Cutting planes: Gomory: 5 MIR: 3 Zero half: 8 Explored 408 nodes (4736 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.145000000000e+03, best bound 1.145000000000e+03, gap 0.0% adding cut for [(70, 72), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 63), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(66, 67), (36, 54), (39, 66), (11, 39), (11, 59), (14, 55), (15, 54), (15, 60), (20, 36), (20, 55), (59, 73), (60, 67)] adding cut for [(32, 40), (32, 56), (4, 45), (4, 50), (10, 33), (10, 40), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 74), (42, 65), (42, 57), (43, 65), (43, 44), (17, 64), (24, 64), (24, 57)] Optimize a model with 173 rows, 2850 columns and 17418 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 172 rows, 2850 columns, 17363 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.139240e+03, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1139.24038 0 73 2864.00000 1139.24038 60.2% - 0s Another try with MIP start H 0 0 1153.0000000 1139.24038 1.19% - 0s 0 0 1139.77632 0 77 1153.00000 1139.77632 1.15% - 0s 0 0 1139.77632 0 73 1153.00000 1139.77632 1.15% - 0s 0 0 1139.80517 0 80 1153.00000 1139.80517 1.14% - 0s 0 0 1140.32193 0 81 1153.00000 1140.32193 1.10% - 0s 0 0 1140.40939 0 86 1153.00000 1140.40939 1.09% - 0s 0 0 1140.42405 0 83 1153.00000 1140.42405 1.09% - 0s 0 0 1140.42974 0 92 1153.00000 1140.42974 1.09% - 0s 0 0 1140.42974 0 92 1153.00000 1140.42974 1.09% - 0s 0 2 1140.44428 0 92 1153.00000 1140.44428 1.09% - 0s H 27 25 1148.0000000 1140.89423 0.62% 17.2 0s * 49 37 19 1147.0000000 1141.15508 0.51% 15.9 0s * 124 58 15 1146.0000000 1141.85106 0.36% 13.8 0s * 270 42 7 1145.0000000 1143.01961 0.17% 12.7 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 10 Explored 353 nodes (4624 simplex iterations) in 0.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.145000000000e+03, best bound 1.145000000000e+03, gap 0.0% adding cut for [(6, 38), (42, 44), (42, 57), (43, 65), (43, 44), (21, 38), (21, 71), (22, 48), (22, 62), (23, 65), (23, 62), (24, 64), (24, 57), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(4, 45), (45, 51), (17, 50), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (15, 36), (15, 60), (60, 67)] adding cut for [(2, 74), (2, 63), (34, 74), (29, 75), (29, 63)] Optimize a model with 177 rows, 2850 columns and 17676 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 176 rows, 2850 columns, 17621 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.139240e+03, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1139.24038 0 73 2864.00000 1139.24038 60.2% - 0s Another try with MIP start H 0 0 1162.0000000 1139.24038 1.96% - 0s H 0 0 1153.0000000 1139.24038 1.19% - 0s 0 0 1139.77632 0 77 1153.00000 1139.77632 1.15% - 0s 0 0 1139.77632 0 73 1153.00000 1139.77632 1.15% - 0s 0 0 1139.80517 0 80 1153.00000 1139.80517 1.14% - 0s 0 0 1140.19543 0 89 1153.00000 1140.19543 1.11% - 0s 0 0 1140.38487 0 87 1153.00000 1140.38487 1.09% - 0s 0 0 1140.43029 0 83 1153.00000 1140.43029 1.09% - 0s 0 0 1140.44773 0 93 1153.00000 1140.44773 1.09% - 0s 0 0 1140.46218 0 93 1153.00000 1140.46218 1.09% - 0s 0 0 1140.46494 0 94 1153.00000 1140.46494 1.09% - 0s 0 0 1140.46494 0 94 1153.00000 1140.46494 1.09% - 0s 0 2 1140.46664 0 93 1153.00000 1140.46664 1.09% - 0s * 48 32 41 1152.0000000 1141.21956 0.94% 11.0 0s * 71 32 21 1147.0000000 1141.46797 0.48% 11.5 0s * 82 19 9 1145.0000000 1141.50910 0.30% 12.4 0s Cutting planes: Gomory: 3 MIR: 1 Zero half: 16 Explored 182 nodes (2813 simplex iterations) in 0.72 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.145000000000e+03, best bound 1.145000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 63), (11, 32), (11, 39), (15, 54), (15, 60), (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)] adding cut for [(6, 38), (29, 75), (48, 49), (21, 38), (21, 71), (22, 75), (22, 48), (23, 29), (23, 62), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] Optimize a model with 179 rows, 2850 columns and 18012 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 178 rows, 2850 columns, 17957 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.139240e+03, 225 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1139.24038 0 74 2864.00000 1139.24038 60.2% - 0s Another try with MIP start H 0 0 1153.0000000 1139.24038 1.19% - 0s 0 0 1139.77632 0 77 1153.00000 1139.77632 1.15% - 0s 0 0 1139.77632 0 74 1153.00000 1139.77632 1.15% - 0s 0 0 1139.81465 0 82 1153.00000 1139.81465 1.14% - 0s 0 0 1140.32337 0 82 1153.00000 1140.32337 1.10% - 0s 0 0 1140.42719 0 87 1153.00000 1140.42719 1.09% - 0s 0 0 1140.42827 0 88 1153.00000 1140.42827 1.09% - 0s 0 0 1140.42827 0 87 1153.00000 1140.42827 1.09% - 0s 0 2 1140.45282 0 87 1153.00000 1140.45282 1.09% - 0s * 38 31 28 1150.0000000 1141.42854 0.75% 12.8 0s * 60 28 15 1147.0000000 1141.72488 0.46% 13.5 0s * 463 15 11 1146.0000000 1144.58824 0.12% 12.1 0s Cutting planes: Gomory: 4 Zero half: 10 Explored 484 nodes (6207 simplex iterations) in 0.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.146000000000e+03, best bound 1.146000000000e+03, gap 0.0% adding cut for [(2, 34), (2, 64), (11, 32), (11, 39), (12, 67), (17, 64), (19, 25), (19, 51), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (32, 56), (34, 74), (39, 66), (42, 44), (42, 57), (43, 44), (43, 65), (63, 74), (66, 67)] adding cut for [(37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (22, 75), (22, 62), (61, 71), (61, 72), (62, 70)] Optimize a model with 181 rows, 2850 columns and 18403 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 180 rows, 2850 columns, 18348 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.139645e+03, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1139.64479 0 80 2864.00000 1139.64479 60.2% - 0s Another try with MIP start H 0 0 1157.0000000 1139.64479 1.50% - 0s H 0 0 1152.0000000 1139.64479 1.07% - 0s 0 0 1140.31138 0 85 1152.00000 1140.31138 1.01% - 0s 0 0 1140.31138 0 80 1152.00000 1140.31138 1.01% - 0s 0 0 1140.37660 0 87 1152.00000 1140.37660 1.01% - 0s 0 0 1140.77849 0 89 1152.00000 1140.77849 0.97% - 0s 0 0 1140.83817 0 88 1152.00000 1140.83817 0.97% - 0s 0 0 1140.84777 0 91 1152.00000 1140.84777 0.97% - 0s 0 0 1140.84777 0 91 1152.00000 1140.84777 0.97% - 0s 0 2 1140.87138 0 91 1152.00000 1140.87138 0.97% - 0s * 112 57 26 1148.0000000 1142.09580 0.51% 11.7 0s * 175 79 18 1147.0000000 1142.93284 0.35% 11.4 0s * 383 43 14 1146.0000000 1144.14286 0.16% 11.2 0s Cutting planes: Gomory: 2 MIR: 1 Zero half: 11 Explored 439 nodes (5236 simplex iterations) in 0.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.146000000000e+03, best bound 1.146000000000e+03, gap 0.0% adding cut for [(6, 30), (6, 38), (10, 40), (10, 51), (16, 30), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (22, 48), (22, 62), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (37, 48), (37, 70), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (70, 72)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 183 rows, 2850 columns and 18904 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 182 rows, 2850 columns, 18849 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.139646e+03, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1139.64594 0 81 2864.00000 1139.64594 60.2% - 0s Another try with MIP start H 0 0 1154.0000000 1139.64594 1.24% - 0s H 0 0 1152.0000000 1139.64594 1.07% - 0s 0 0 1140.52253 0 82 1152.00000 1140.52253 1.00% - 0s 0 0 1140.52253 0 81 1152.00000 1140.52253 1.00% - 0s 0 0 1140.55309 0 83 1152.00000 1140.55309 0.99% - 0s 0 0 1140.78389 0 89 1152.00000 1140.78389 0.97% - 0s 0 0 1140.82227 0 88 1152.00000 1140.82227 0.97% - 0s 0 0 1140.86336 0 92 1152.00000 1140.86336 0.97% - 0s 0 0 1140.95907 0 88 1152.00000 1140.95907 0.96% - 0s 0 0 1141.00714 0 92 1152.00000 1141.00714 0.95% - 0s 0 0 1141.01605 0 92 1152.00000 1141.01605 0.95% - 0s 0 0 1141.02221 0 94 1152.00000 1141.02221 0.95% - 0s 0 0 1141.02221 0 94 1152.00000 1141.02221 0.95% - 0s H 0 0 1151.0000000 1141.02221 0.87% - 0s 0 2 1141.02594 0 94 1151.00000 1141.02594 0.87% - 0s * 80 58 34 1150.0000000 1142.04570 0.69% 11.4 0s * 136 92 20 1149.0000000 1142.07380 0.60% 11.6 0s * 278 125 11 1148.0000000 1143.01429 0.43% 12.7 0s * 357 89 15 1147.0000000 1143.40239 0.31% 12.6 0s Cutting planes: Gomory: 4 MIR: 1 Zero half: 14 Explored 746 nodes (9352 simplex iterations) in 1.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.147000000000e+03, best bound 1.147000000000e+03, gap 0.0% adding cut for [(6, 38), (6, 30), (62, 70), (29, 62), (48, 49), (21, 38), (21, 71), (22, 29), (22, 48), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(2, 74), (2, 44), (43, 65), (34, 74), (23, 65), (23, 63), (24, 44), (24, 57), (42, 43), (42, 57)] adding cut for [(4, 45), (45, 51), (17, 64), (50, 64), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (12, 66), (14, 55), (14, 58), (15, 20), (15, 60), (16, 58), (20, 55), (60, 67)] Optimize a model with 187 rows, 2850 columns and 19140 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 186 rows, 2850 columns, 19085 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140043e+03, 246 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.04281 0 72 2864.00000 1140.04281 60.2% - 0s Another try with MIP start H 0 0 1151.0000000 1140.04281 0.95% - 0s 0 0 1140.74823 0 75 1151.00000 1140.74823 0.89% - 0s 0 0 1140.74823 0 72 1151.00000 1140.74823 0.89% - 0s 0 0 1140.75514 0 80 1151.00000 1140.75514 0.89% - 0s 0 0 1140.97856 0 86 1151.00000 1140.97856 0.87% - 0s 0 0 1140.98722 0 88 1151.00000 1140.98722 0.87% - 0s 0 0 1141.05311 0 91 1151.00000 1141.05311 0.86% - 0s 0 0 1141.07874 0 92 1151.00000 1141.07874 0.86% - 0s 0 0 1141.09638 0 92 1151.00000 1141.09638 0.86% - 0s 0 0 1141.09638 0 92 1151.00000 1141.09638 0.86% - 0s H 0 0 1149.0000000 1141.09638 0.69% - 0s 0 2 1141.11049 0 92 1149.00000 1141.11049 0.69% - 0s * 38 23 33 1148.0000000 1142.13691 0.51% 11.4 0s * 196 50 10 1147.0000000 1143.97083 0.26% 13.0 0s Cutting planes: Gomory: 1 Zero half: 12 Explored 388 nodes (4847 simplex iterations) in 0.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.147000000000e+03, best bound 1.147000000000e+03, gap 0.0% adding cut for [(2, 23), (2, 44), (9, 20), (14, 55), (14, 58), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 62), (24, 57), (24, 64), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (40, 73), (10, 32), (10, 40), (11, 32), (11, 39), (15, 36), (15, 60), (60, 67)] adding cut for [(33, 51), (17, 50), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(34, 74), (22, 75), (22, 29), (29, 63), (63, 74)] Optimize a model with 191 rows, 2850 columns and 19491 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 190 rows, 2850 columns, 19436 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140156e+03, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.15631 0 80 2864.00000 1140.15631 60.2% - 0s Another try with MIP start H 0 0 1152.0000000 1140.15631 1.03% - 0s 0 0 1140.83130 0 86 1152.00000 1140.83130 0.97% - 0s 0 0 1140.83130 0 81 1152.00000 1140.83130 0.97% - 0s 0 0 1140.94799 0 85 1152.00000 1140.94799 0.96% - 0s 0 0 1141.05505 0 85 1152.00000 1141.05505 0.95% - 0s 0 0 1141.12616 0 88 1152.00000 1141.12616 0.94% - 0s 0 0 1141.14301 0 90 1152.00000 1141.14301 0.94% - 0s 0 0 1141.16355 0 90 1152.00000 1141.16355 0.94% - 0s 0 0 1141.17041 0 94 1152.00000 1141.17041 0.94% - 0s 0 2 1141.20357 0 94 1152.00000 1141.20357 0.94% - 0s H 27 25 1149.0000000 1142.32085 0.58% 19.4 0s * 144 70 16 1148.0000000 1143.04868 0.43% 13.2 0s Cutting planes: Gomory: 6 Zero half: 10 Explored 670 nodes (8251 simplex iterations) in 1.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.148000000000e+03, best bound 1.148000000000e+03, gap 0.0% adding cut for [(32, 73), (32, 56), (4, 45), (4, 50), (40, 73), (10, 40), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 74), (2, 23), (43, 65), (43, 44), (17, 64), (23, 65), (24, 64), (24, 57), (42, 44), (42, 57)] adding cut for [(6, 38), (48, 49), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(66, 67), (39, 66), (11, 39), (11, 59), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 195 rows, 2850 columns and 19693 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 194 rows, 2850 columns, 19638 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140300e+03, 247 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.30000 0 77 2864.00000 1140.30000 60.2% - 0s Another try with MIP start H 0 0 1152.0000000 1140.30000 1.02% - 0s 0 0 1140.81812 0 87 1152.00000 1140.81812 0.97% - 0s 0 0 1140.81812 0 77 1152.00000 1140.81812 0.97% - 0s 0 0 1141.10550 0 90 1152.00000 1141.10550 0.95% - 0s 0 0 1141.42157 0 82 1152.00000 1141.42157 0.92% - 0s 0 0 1141.47969 0 82 1152.00000 1141.47969 0.91% - 0s 0 0 1141.49056 0 85 1152.00000 1141.49056 0.91% - 0s 0 0 1141.49056 0 85 1152.00000 1141.49056 0.91% - 0s 0 2 1141.51574 0 85 1152.00000 1141.51574 0.91% - 0s * 57 46 24 1150.0000000 1143.10000 0.60% 16.9 0s * 451 180 21 1149.0000000 1144.57692 0.38% 12.8 0s * 871 120 11 1148.0000000 1145.80427 0.19% 13.0 1s Cutting planes: Gomory: 8 Zero half: 10 Explored 1033 nodes (13162 simplex iterations) in 1.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.148000000000e+03, best bound 1.148000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 23), (4, 45), (43, 65), (43, 44), (34, 74), (45, 51), (19, 56), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (42, 44), (42, 57)] adding cut for [(6, 38), (29, 63), (29, 62), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 40), (66, 67), (39, 66), (10, 40), (11, 32), (11, 39), (15, 60), (60, 67)] adding cut for [(36, 54), (12, 54), (14, 55), (14, 58), (16, 58), (16, 30), (20, 36), (20, 55)] Optimize a model with 199 rows, 2850 columns and 19973 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 198 rows, 2850 columns, 19918 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140470e+03, 267 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.46984 0 84 2864.00000 1140.46984 60.2% - 0s Another try with MIP start H 0 0 1160.0000000 1140.46984 1.68% - 0s H 0 0 1152.0000000 1140.46984 1.00% - 0s 0 0 1141.04258 0 90 1152.00000 1141.04258 0.95% - 0s 0 0 1141.04258 0 84 1152.00000 1141.04258 0.95% - 0s 0 0 1141.14530 0 90 1152.00000 1141.14530 0.94% - 0s 0 0 1141.48322 0 91 1152.00000 1141.48322 0.91% - 0s 0 0 1141.62014 0 93 1152.00000 1141.62014 0.90% - 0s 0 0 1141.67644 0 99 1152.00000 1141.67644 0.90% - 0s 0 0 1141.70809 0 95 1152.00000 1141.70809 0.89% - 0s 0 0 1141.71021 0 98 1152.00000 1141.71021 0.89% - 0s 0 0 1141.71021 0 97 1152.00000 1141.71021 0.89% - 0s H 0 0 1151.0000000 1141.71021 0.81% - 0s 0 2 1141.71148 0 97 1151.00000 1141.71148 0.81% - 0s H 110 58 1149.0000000 1143.26174 0.50% 13.7 0s * 280 68 15 1148.0000000 1144.44709 0.31% 13.5 0s Cutting planes: Gomory: 4 Zero half: 15 Explored 742 nodes (9465 simplex iterations) in 1.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.148000000000e+03, best bound 1.148000000000e+03, gap 0.0% adding cut for [(32, 56), (66, 67), (39, 66), (10, 51), (10, 26), (11, 32), (11, 39), (15, 36), (15, 60), (17, 50), (19, 51), (19, 25), (25, 50), (26, 56), (60, 67)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (23, 65), (23, 63), (24, 64), (24, 57), (29, 62), (29, 63), (62, 75)] adding cut for [(6, 38), (48, 49), (21, 38), (21, 71), (22, 48), (22, 70), (61, 71), (61, 72), (37, 72), (37, 70)] Optimize a model with 202 rows, 2850 columns and 20214 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 201 rows, 2850 columns, 20159 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140470e+03, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.46984 0 84 2864.00000 1140.46984 60.2% - 0s Another try with MIP start H 0 0 1157.0000000 1140.46984 1.43% - 0s H 0 0 1154.0000000 1140.46984 1.17% - 0s 0 0 1141.06038 0 89 1154.00000 1141.06038 1.12% - 0s 0 0 1141.06038 0 84 1154.00000 1141.06038 1.12% - 0s 0 0 1141.14581 0 91 1154.00000 1141.14581 1.11% - 0s 0 0 1141.49927 0 92 1154.00000 1141.49927 1.08% - 0s 0 0 1141.61898 0 94 1154.00000 1141.61898 1.07% - 0s 0 0 1141.67193 0 96 1154.00000 1141.67193 1.07% - 0s 0 0 1141.71918 0 99 1154.00000 1141.71918 1.06% - 0s 0 0 1141.73998 0 99 1154.00000 1141.73998 1.06% - 0s 0 0 1141.78794 0 96 1154.00000 1141.78794 1.06% - 0s 0 0 1141.80409 0 94 1154.00000 1141.80409 1.06% - 0s 0 0 1141.80799 0 101 1154.00000 1141.80799 1.06% - 0s 0 0 1141.80799 0 101 1154.00000 1141.80799 1.06% - 0s H 0 0 1153.0000000 1141.80799 0.97% - 0s 0 2 1141.82234 0 101 1153.00000 1141.82234 0.97% - 0s * 43 33 34 1152.0000000 1142.90394 0.79% 17.7 0s * 202 123 26 1151.0000000 1143.73077 0.63% 15.6 0s H 600 155 1149.0000000 1145.14516 0.34% 14.0 1s Explored 1355 nodes (19236 simplex iterations) in 2.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.149000000000e+03, best bound 1.149000000000e+03, gap 0.0% adding cut for [(70, 72), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 49), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(2, 44), (2, 23), (42, 65), (42, 57), (43, 65), (43, 44), (23, 62), (24, 64), (24, 57), (29, 75), (29, 62)] adding cut for [(32, 66), (32, 56), (39, 66), (17, 50), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(12, 67), (12, 54), (14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 206 rows, 2850 columns and 20431 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 205 rows, 2850 columns, 20376 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.140470e+03, 221 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1140.46984 0 84 2864.00000 1140.46984 60.2% - 0s Another try with MIP start H 0 0 1156.0000000 1140.46984 1.34% - 0s H 0 0 1154.0000000 1140.46984 1.17% - 0s 0 0 1141.06038 0 89 1154.00000 1141.06038 1.12% - 0s 0 0 1141.06038 0 84 1154.00000 1141.06038 1.12% - 0s 0 0 1141.14385 0 90 1154.00000 1141.14385 1.11% - 0s 0 0 1141.46183 0 92 1154.00000 1141.46183 1.09% - 0s 0 0 1141.62633 0 94 1154.00000 1141.62633 1.07% - 0s 0 0 1141.66045 0 91 1154.00000 1141.66045 1.07% - 0s 0 0 1141.66570 0 98 1154.00000 1141.66570 1.07% - 0s 0 0 1141.68243 0 99 1154.00000 1141.68243 1.07% - 0s 0 0 1141.79772 0 97 1154.00000 1141.79772 1.06% - 0s 0 0 1141.83742 0 92 1154.00000 1141.83742 1.05% - 0s 0 0 1141.86892 0 99 1154.00000 1141.86892 1.05% - 0s 0 0 1141.86968 0 100 1154.00000 1141.86968 1.05% - 0s 0 0 1141.86968 0 99 1154.00000 1141.86968 1.05% - 0s 0 2 1141.87945 0 99 1154.00000 1141.87945 1.05% - 0s * 37 32 31 1152.0000000 1142.67162 0.81% 15.9 0s * 64 53 21 1151.0000000 1142.77356 0.71% 15.8 0s * 452 114 13 1149.0000000 1145.26812 0.32% 14.3 1s Cutting planes: Gomory: 2 Zero half: 15 Explored 1013 nodes (13841 simplex iterations) in 1.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.149000000000e+03, best bound 1.149000000000e+03, gap 0.0% adding cut for [(16, 58), (16, 38), (36, 54), (6, 48), (6, 30), (70, 72), (14, 55), (14, 28), (15, 60), (15, 54), (20, 60), (20, 55), (21, 71), (21, 38), (28, 58), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(2, 64), (2, 74), (42, 44), (42, 57), (43, 65), (43, 44), (29, 62), (29, 63), (23, 65), (23, 62), (24, 64), (24, 57)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 59), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (12, 67), (39, 66)] Optimize a model with 210 rows, 2850 columns and 20741 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 209 rows, 2850 columns, 20686 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.142061e+03, 200 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1142.06080 0 80 2864.00000 1142.06080 60.1% - 0s Another try with MIP start H 0 0 1153.0000000 1142.06080 0.95% - 0s 0 0 1142.89295 0 87 1153.00000 1142.89295 0.88% - 0s 0 0 1142.89295 0 80 1153.00000 1142.89295 0.88% - 0s 0 0 1142.97154 0 91 1153.00000 1142.97154 0.87% - 0s 0 0 1143.02107 0 88 1153.00000 1143.02107 0.87% - 0s 0 0 1143.10279 0 94 1153.00000 1143.10279 0.86% - 0s 0 0 1143.19421 0 95 1153.00000 1143.19421 0.85% - 0s 0 0 1143.24286 0 92 1153.00000 1143.24286 0.85% - 0s 0 0 1143.25066 0 94 1153.00000 1143.25066 0.85% - 0s 0 0 1143.25346 0 97 1153.00000 1143.25346 0.85% - 0s 0 0 1143.29790 0 89 1153.00000 1143.29790 0.84% - 0s 0 0 1143.31165 0 93 1153.00000 1143.31165 0.84% - 0s 0 0 1143.31615 0 96 1153.00000 1143.31615 0.84% - 0s 0 0 1143.32183 0 98 1153.00000 1143.32183 0.84% - 0s 0 2 1143.32809 0 98 1153.00000 1143.32809 0.84% - 0s * 37 32 33 1152.0000000 1144.17742 0.68% 16.8 0s * 87 56 16 1151.0000000 1144.74215 0.54% 16.7 0s * 387 100 12 1150.0000000 1146.83505 0.28% 15.4 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 24 Explored 677 nodes (10175 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.150000000000e+03, best bound 1.150000000000e+03, gap 0.0% adding cut for [(32, 56), (66, 67), (39, 66), (10, 40), (10, 26), (11, 32), (11, 39), (12, 54), (12, 60), (26, 56), (60, 67)] adding cut for [(70, 72), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(2, 44), (2, 34), (42, 43), (42, 44), (43, 65), (23, 65), (23, 62), (29, 75), (29, 62)] adding cut for [(4, 45), (45, 51), (17, 64), (50, 57), (19, 51), (19, 25), (24, 64), (24, 57), (25, 50)] adding cut for [(14, 55), (14, 28), (15, 36), (15, 20), (20, 55)] Optimize a model with 215 rows, 2850 columns and 20967 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.02s Presolved: 214 rows, 2850 columns, 20912 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.142061e+03, 269 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1142.06080 0 80 2864.00000 1142.06080 60.1% - 0s Another try with MIP start H 0 0 1160.0000000 1142.06080 1.55% - 0s H 0 0 1158.0000000 1142.06080 1.38% - 0s 0 0 1142.75092 0 89 1158.00000 1142.75092 1.32% - 0s 0 0 1142.75092 0 80 1158.00000 1142.75092 1.32% - 0s 0 0 1142.94183 0 85 1158.00000 1142.94183 1.30% - 0s 0 0 1143.13967 0 90 1158.00000 1143.13967 1.28% - 0s 0 0 1143.16747 0 93 1158.00000 1143.16747 1.28% - 0s 0 0 1143.20505 0 95 1158.00000 1143.20505 1.28% - 0s 0 0 1143.20960 0 97 1158.00000 1143.20960 1.28% - 0s 0 0 1143.24513 0 94 1158.00000 1143.24513 1.27% - 0s 0 0 1143.25139 0 97 1158.00000 1143.25139 1.27% - 0s 0 0 1143.25415 0 99 1158.00000 1143.25415 1.27% - 0s 0 0 1143.25415 0 99 1158.00000 1143.25415 1.27% - 0s H 0 0 1155.0000000 1143.25415 1.02% - 0s 0 2 1143.32123 0 99 1155.00000 1143.32123 1.01% - 0s * 160 99 30 1153.0000000 1144.85613 0.71% 13.5 0s * 331 152 11 1152.0000000 1146.06250 0.52% 14.2 1s * 499 155 15 1151.0000000 1146.71429 0.37% 14.1 1s H 689 163 1150.0000000 1146.94667 0.27% 15.0 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 9 Explored 1008 nodes (15518 simplex iterations) in 2.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.150000000000e+03, best bound 1.150000000000e+03, gap 0.0% adding cut for [(30, 58), (34, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (61, 71), (61, 72), (16, 58), (21, 71), (21, 38), (23, 65), (23, 62), (6, 16), (6, 38), (62, 70)] adding cut for [(4, 45), (11, 32), (11, 59), (45, 51), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(66, 67), (39, 66), (15, 36), (15, 60), (60, 67)] adding cut for [(48, 49), (29, 63), (22, 48), (22, 29)] adding cut for [(24, 64), (24, 57), (50, 64), (25, 50), (25, 57)] Optimize a model with 220 rows, 2850 columns and 21228 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 219 rows, 2850 columns, 21173 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.142144e+03, 224 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1142.14395 0 85 2864.00000 1142.14395 60.1% - 0s Another try with MIP start H 0 0 1157.0000000 1142.14395 1.28% - 0s 0 0 1142.98380 0 90 1157.00000 1142.98380 1.21% - 0s 0 0 1142.98380 0 85 1157.00000 1142.98380 1.21% - 0s 0 0 1143.05656 0 90 1157.00000 1143.05656 1.21% - 0s 0 0 1143.16536 0 94 1157.00000 1143.16536 1.20% - 0s 0 0 1143.28440 0 94 1157.00000 1143.28440 1.19% - 0s 0 0 1143.29284 0 99 1157.00000 1143.29284 1.18% - 0s 0 0 1143.33500 0 93 1157.00000 1143.33500 1.18% - 0s 0 0 1143.36515 0 95 1157.00000 1143.36515 1.18% - 0s 0 0 1143.36966 0 98 1157.00000 1143.36966 1.18% - 0s 0 0 1143.38826 0 99 1157.00000 1143.38826 1.18% - 0s 0 0 1143.40076 0 97 1157.00000 1143.40076 1.18% - 0s 0 0 1143.40311 0 99 1157.00000 1143.40311 1.18% - 0s 0 0 1143.40311 0 99 1157.00000 1143.40311 1.18% - 0s 0 2 1143.40788 0 99 1157.00000 1143.40788 1.17% - 0s * 94 46 24 1151.0000000 1144.91026 0.53% 14.6 0s * 1357 80 21 1150.0000000 1147.68333 0.20% 14.6 2s Explored 1524 nodes (22013 simplex iterations) in 2.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.150000000000e+03, best bound 1.150000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (17, 64), (11, 32), (11, 73), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(6, 38), (21, 38), (21, 71), (22, 48), (22, 62), (70, 72), (61, 71), (61, 72), (62, 63), (37, 48), (37, 70)] adding cut for [(34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (29, 75), (23, 65), (23, 29)] adding cut for [(66, 67), (39, 66), (39, 59), (15, 20), (15, 60), (60, 67)] Optimize a model with 224 rows, 2850 columns and 21438 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 223 rows, 2850 columns, 21383 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.142266e+03, 240 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1142.26589 0 87 2864.00000 1142.26589 60.1% - 0s Another try with MIP start H 0 0 1157.0000000 1142.26589 1.27% - 0s H 0 0 1156.0000000 1142.26589 1.19% - 0s 0 0 1143.01771 0 91 1156.00000 1143.01771 1.12% - 0s 0 0 1143.01771 0 87 1156.00000 1143.01771 1.12% - 0s 0 0 1143.10650 0 88 1156.00000 1143.10650 1.12% - 0s 0 0 1143.37639 0 95 1156.00000 1143.37639 1.09% - 0s 0 0 1143.60285 0 93 1156.00000 1143.60285 1.07% - 0s 0 0 1143.64065 0 94 1156.00000 1143.64065 1.07% - 0s 0 0 1143.66138 0 99 1156.00000 1143.66138 1.07% - 0s 0 0 1143.72540 0 98 1156.00000 1143.72540 1.06% - 0s 0 0 1143.73682 0 99 1156.00000 1143.73682 1.06% - 0s 0 0 1143.73941 0 99 1156.00000 1143.73941 1.06% - 0s 0 0 1143.75315 0 98 1156.00000 1143.75315 1.06% - 0s 0 0 1143.75315 0 98 1156.00000 1143.75315 1.06% - 0s H 0 0 1152.0000000 1143.75315 0.72% - 0s 0 2 1143.76696 0 98 1152.00000 1143.76696 0.71% - 0s * 392 125 14 1151.0000000 1146.83918 0.36% 14.8 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 20 Explored 952 nodes (13580 simplex iterations) in 1.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.151000000000e+03, best bound 1.151000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 63), (37, 70), (37, 48), (70, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (21, 71), (21, 38), (22, 48), (22, 62), (23, 29), (23, 63), (6, 38), (29, 75), (62, 65)] adding cut for [(34, 64), (34, 74), (4, 45), (45, 51), (24, 64), (24, 57), (50, 57), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 59), (15, 36), (15, 60), (60, 67)] Optimize a model with 227 rows, 2850 columns and 21734 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 226 rows, 2850 columns, 21679 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143000e+03, 227 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.00000 0 70 2864.00000 1143.00000 60.1% - 0s Another try with MIP start H 0 0 1159.0000000 1143.00000 1.38% - 0s 0 0 1143.98144 0 86 1159.00000 1143.98144 1.30% - 0s 0 0 1143.98144 0 70 1159.00000 1143.98144 1.30% - 0s 0 0 1144.81105 0 83 1159.00000 1144.81105 1.22% - 0s 0 0 1144.90178 0 91 1159.00000 1144.90178 1.22% - 0s 0 0 1144.93794 0 92 1159.00000 1144.93794 1.21% - 0s 0 0 1144.94521 0 93 1159.00000 1144.94521 1.21% - 0s 0 0 1144.94637 0 93 1159.00000 1144.94637 1.21% - 0s 0 0 1144.95419 0 94 1159.00000 1144.95419 1.21% - 0s 0 0 1144.95419 0 93 1159.00000 1144.95419 1.21% - 0s 0 2 1144.96410 0 93 1159.00000 1144.96410 1.21% - 0s * 30 27 22 1155.0000000 1146.08257 0.77% 22.7 0s * 108 59 15 1153.0000000 1146.85758 0.53% 17.8 0s H 244 70 1152.0000000 1147.47302 0.39% 15.3 0s Cutting planes: Gomory: 3 MIR: 5 Zero half: 8 Explored 750 nodes (10465 simplex iterations) in 1.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.152000000000e+03, best bound 1.152000000000e+03, gap 0.0% adding cut for [(11, 32), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (28, 58), (32, 56), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 229 rows, 2850 columns and 22113 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 228 rows, 2850 columns, 22058 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143295e+03, 230 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.29518 0 86 2864.00000 1143.29518 60.1% - 0s Another try with MIP start H 0 0 1156.0000000 1143.29518 1.10% - 0s H 0 0 1155.0000000 1143.29518 1.01% - 0s 0 0 1144.87059 0 84 1155.00000 1144.87059 0.88% - 0s 0 0 1144.87059 0 86 1155.00000 1144.87059 0.88% - 0s 0 0 1145.27037 0 81 1155.00000 1145.27037 0.84% - 0s 0 0 1145.27196 0 92 1155.00000 1145.27196 0.84% - 0s 0 0 1145.34144 0 94 1155.00000 1145.34144 0.84% - 0s 0 0 1145.34144 0 95 1155.00000 1145.34144 0.84% - 0s 0 0 1145.34865 0 94 1155.00000 1145.34865 0.84% - 0s 0 0 1145.35564 0 95 1155.00000 1145.35564 0.84% - 0s 0 2 1145.35976 0 95 1155.00000 1145.35976 0.83% - 0s * 69 40 22 1154.0000000 1146.65772 0.64% 14.5 0s * 81 34 12 1152.0000000 1146.75732 0.46% 15.3 0s Cutting planes: Gomory: 1 Zero half: 15 Explored 424 nodes (6165 simplex iterations) in 1.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.152000000000e+03, best bound 1.152000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 44), (43, 65), (34, 74), (29, 75), (48, 49), (22, 75), (22, 48), (23, 65), (23, 29), (24, 44), (24, 57), (42, 43), (42, 57)] adding cut for [(19, 51), (19, 25), (40, 73), (10, 40), (10, 26), (17, 64), (50, 64), (51, 56), (25, 50), (26, 56)] adding cut for [(37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70), (62, 63)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 59), (14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 233 rows, 2850 columns and 22373 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 232 rows, 2850 columns, 22318 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143295e+03, 237 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.29518 0 86 2864.00000 1143.29518 60.1% - 0s Another try with MIP start H 0 0 1158.0000000 1143.29518 1.27% - 0s H 0 0 1156.0000000 1143.29518 1.10% - 0s 0 0 1144.65357 0 88 1156.00000 1144.65357 0.98% - 0s 0 0 1144.65357 0 86 1156.00000 1144.65357 0.98% - 0s 0 0 1145.13501 0 91 1156.00000 1145.13501 0.94% - 0s 0 0 1145.28458 0 94 1156.00000 1145.28458 0.93% - 0s 0 0 1145.36097 0 94 1156.00000 1145.36097 0.92% - 0s H 0 0 1154.0000000 1145.36097 0.75% - 0s 0 0 1145.39321 0 96 1154.00000 1145.39321 0.75% - 0s 0 2 1145.69685 0 96 1154.00000 1145.69685 0.72% - 0s * 226 79 25 1153.0000000 1148.14126 0.42% 21.2 1s * 591 51 25 1152.0000000 1150.08092 0.17% 17.0 1s Cutting planes: Gomory: 9 MIR: 3 Zero half: 17 Explored 657 nodes (11179 simplex iterations) in 1.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.152000000000e+03, best bound 1.152000000000e+03, gap 0.0% adding cut for [(32, 73), (32, 56), (2, 74), (2, 23), (40, 73), (43, 65), (43, 44), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (10, 40), (42, 44), (42, 57)] adding cut for [(37, 72), (37, 70), (29, 62), (29, 63), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(60, 67), (12, 67), (15, 60), (15, 54)] Optimize a model with 236 rows, 2850 columns and 22620 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 235 rows, 2850 columns, 22565 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143676e+03, 220 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.67632 0 81 2864.00000 1143.67632 60.1% - 0s Another try with MIP start H 0 0 1161.0000000 1143.67632 1.49% - 0s H 0 0 1158.0000000 1143.67632 1.24% - 0s 0 0 1144.86667 0 82 1158.00000 1144.86667 1.13% - 0s 0 0 1144.86667 0 81 1158.00000 1144.86667 1.13% - 0s 0 0 1145.11923 0 89 1158.00000 1145.11923 1.11% - 0s 0 0 1145.19831 0 87 1158.00000 1145.19831 1.11% - 0s 0 0 1145.30785 0 88 1158.00000 1145.30785 1.10% - 0s 0 0 1145.34292 0 97 1158.00000 1145.34292 1.09% - 0s 0 0 1145.44380 0 93 1158.00000 1145.44380 1.08% - 0s 0 0 1145.55059 0 96 1158.00000 1145.55059 1.08% - 0s 0 0 1145.59406 0 91 1158.00000 1145.59406 1.07% - 0s 0 0 1145.60541 0 91 1158.00000 1145.60541 1.07% - 0s 0 0 1145.65150 0 95 1158.00000 1145.65150 1.07% - 0s 0 0 1145.68619 0 98 1158.00000 1145.68619 1.06% - 0s 0 0 1145.70185 0 97 1158.00000 1145.70185 1.06% - 0s 0 0 1145.70185 0 97 1158.00000 1145.70185 1.06% - 0s H 0 0 1157.0000000 1145.70185 0.98% - 0s 0 2 1145.70507 0 97 1157.00000 1145.70507 0.98% - 0s * 39 26 30 1156.0000000 1146.92411 0.79% 16.4 0s * 65 41 19 1155.0000000 1147.06262 0.69% 16.5 0s * 66 35 20 1154.0000000 1147.06262 0.60% 16.3 0s * 142 65 17 1153.0000000 1147.99583 0.43% 15.6 1s Cutting planes: Gomory: 1 MIR: 2 Zero half: 22 Explored 798 nodes (11130 simplex iterations) in 1.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.153000000000e+03, best bound 1.153000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 44), (43, 65), (34, 74), (29, 75), (29, 62), (23, 65), (23, 62), (24, 44), (24, 57), (42, 43), (42, 57)] adding cut for [(6, 38), (6, 30), (21, 38), (21, 71), (22, 48), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (17, 64), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (39, 59), (40, 73), (10, 40), (15, 60), (59, 73), (60, 67)] adding cut for [(36, 54), (12, 54), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55)] Optimize a model with 241 rows, 2850 columns and 22862 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 240 rows, 2850 columns, 22807 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143676e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.67632 0 82 2864.00000 1143.67632 60.1% - 0s Another try with MIP start H 0 0 1159.0000000 1143.67632 1.32% - 0s 0 0 1144.86667 0 84 1159.00000 1144.86667 1.22% - 0s 0 0 1144.86667 0 83 1159.00000 1144.86667 1.22% - 0s 0 0 1145.38197 0 89 1159.00000 1145.38197 1.17% - 0s 0 0 1145.54617 0 95 1159.00000 1145.54617 1.16% - 0s 0 0 1145.64763 0 94 1159.00000 1145.64763 1.15% - 0s 0 0 1145.67068 0 96 1159.00000 1145.67068 1.15% - 0s 0 0 1145.67876 0 97 1159.00000 1145.67876 1.15% - 0s 0 0 1145.72716 0 94 1159.00000 1145.72716 1.15% - 0s 0 0 1145.81011 0 100 1159.00000 1145.81011 1.14% - 0s 0 0 1145.88167 0 97 1159.00000 1145.88167 1.13% - 0s 0 0 1145.89317 0 99 1159.00000 1145.89317 1.13% - 0s 0 0 1145.90794 0 102 1159.00000 1145.90794 1.13% - 0s 0 0 1145.91241 0 97 1159.00000 1145.91241 1.13% - 0s 0 0 1145.91444 0 101 1159.00000 1145.91444 1.13% - 0s 0 0 1145.91478 0 103 1159.00000 1145.91478 1.13% - 0s 0 0 1145.91478 0 103 1159.00000 1145.91478 1.13% - 0s 0 2 1145.91581 0 103 1159.00000 1145.91581 1.13% - 0s * 357 272 32 1158.0000000 1146.95422 0.95% 17.3 1s * 387 263 22 1157.0000000 1147.03697 0.86% 16.9 1s * 499 196 14 1154.0000000 1147.64976 0.55% 16.4 1s * 1563 142 23 1153.0000000 1150.50000 0.22% 17.1 2s Cutting planes: Gomory: 13 MIR: 6 Zero half: 33 Explored 1818 nodes (29978 simplex iterations) in 3.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.153000000000e+03, best bound 1.153000000000e+03, gap 0.0% adding cut for [(2, 23), (2, 44), (11, 32), (11, 73), (15, 20), (15, 36), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (23, 29), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (37, 70), (37, 72), (42, 57), (42, 65), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (39, 59), (12, 54), (12, 60), (60, 67)] Optimize a model with 243 rows, 2850 columns and 23379 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 242 rows, 2850 columns, 23324 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143676e+03, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.67632 0 82 2864.00000 1143.67632 60.1% - 0s Another try with MIP start H 0 0 1154.0000000 1143.67632 0.89% - 0s 0 0 1144.86667 0 82 1154.00000 1144.86667 0.79% - 0s 0 0 1144.86667 0 82 1154.00000 1144.86667 0.79% - 0s 0 0 1145.11923 0 89 1154.00000 1145.11923 0.77% - 0s 0 0 1145.23902 0 92 1154.00000 1145.23902 0.76% - 0s 0 0 1145.28500 0 95 1154.00000 1145.28500 0.76% - 0s 0 0 1145.44072 0 91 1154.00000 1145.44072 0.74% - 0s 0 0 1145.47849 0 89 1154.00000 1145.47849 0.74% - 0s 0 0 1145.47849 0 90 1154.00000 1145.47849 0.74% - 0s 0 0 1145.47849 0 90 1154.00000 1145.47849 0.74% - 0s 0 0 1145.47849 0 90 1154.00000 1145.47849 0.74% - 0s 0 2 1145.49000 0 90 1154.00000 1145.49000 0.74% - 0s * 1443 105 16 1153.0000000 1150.60641 0.21% 14.4 2s Cutting planes: Gomory: 1 MIR: 2 Zero half: 8 Explored 1662 nodes (23420 simplex iterations) in 2.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.153000000000e+03, best bound 1.153000000000e+03, gap 0.0% adding cut for [(2, 64), (2, 44), (51, 56), (42, 65), (42, 57), (43, 65), (43, 44), (17, 64), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (26, 56), (10, 40), (10, 26)] adding cut for [(34, 74), (37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (23, 62), (23, 63), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(66, 67), (39, 66), (12, 54), (12, 60), (60, 67)] adding cut for [(48, 49), (29, 75), (22, 48), (22, 75)] Optimize a model with 247 rows, 2850 columns and 23631 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 246 rows, 2850 columns, 23576 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143676e+03, 253 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.67632 0 83 2864.00000 1143.67632 60.1% - 0s Another try with MIP start H 0 0 1162.0000000 1143.67632 1.58% - 0s H 0 0 1158.0000000 1143.67632 1.24% - 0s 0 0 1144.89234 0 86 1158.00000 1144.89234 1.13% - 0s 0 0 1144.89234 0 82 1158.00000 1144.89234 1.13% - 0s 0 0 1145.12213 0 84 1158.00000 1145.12213 1.11% - 0s 0 0 1145.21184 0 94 1158.00000 1145.21184 1.10% - 0s 0 0 1145.33285 0 88 1158.00000 1145.33285 1.09% - 0s 0 0 1145.39015 0 96 1158.00000 1145.39015 1.09% - 0s 0 0 1145.42857 0 91 1158.00000 1145.42857 1.09% - 0s 0 0 1145.53969 0 95 1158.00000 1145.53969 1.08% - 0s 0 0 1145.56825 0 100 1158.00000 1145.56825 1.07% - 0s 0 0 1145.58664 0 102 1158.00000 1145.58664 1.07% - 0s 0 0 1145.58664 0 102 1158.00000 1145.58664 1.07% - 0s 0 2 1145.64280 0 100 1158.00000 1145.64280 1.07% - 0s * 92 57 15 1154.0000000 1146.41463 0.66% 17.9 0s Cutting planes: Gomory: 9 MIR: 9 Zero half: 19 Explored 1946 nodes (28912 simplex iterations) in 2.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (2, 44), (2, 74), (12, 67), (12, 66), (42, 65), (42, 57), (43, 65), (43, 44), (15, 60), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56), (60, 67)] adding cut for [(6, 16), (6, 30), (62, 70), (29, 62), (16, 38), (21, 38), (21, 71), (23, 29), (23, 63), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(40, 73), (10, 40), (11, 39), (11, 59), (59, 73)] Optimize a model with 250 rows, 2850 columns and 23927 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 249 rows, 2850 columns, 23872 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143676e+03, 213 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.67632 0 84 2864.00000 1143.67632 60.1% - 0s Another try with MIP start H 0 0 1170.0000000 1143.67632 2.25% - 0s H 0 0 1158.0000000 1143.67632 1.24% - 0s 0 0 1144.89234 0 88 1158.00000 1144.89234 1.13% - 0s 0 0 1144.89234 0 82 1158.00000 1144.89234 1.13% - 0s 0 0 1145.31667 0 87 1158.00000 1145.31667 1.10% - 0s 0 0 1145.43821 0 91 1158.00000 1145.43821 1.08% - 0s 0 0 1145.58341 0 90 1158.00000 1145.58341 1.07% - 0s 0 0 1145.63853 0 94 1158.00000 1145.63853 1.07% - 0s 0 0 1145.63945 0 95 1158.00000 1145.63945 1.07% - 0s 0 0 1145.71949 0 90 1158.00000 1145.71949 1.06% - 0s 0 0 1145.74001 0 93 1158.00000 1145.74001 1.06% - 0s 0 0 1145.77545 0 91 1158.00000 1145.77545 1.06% - 0s 0 0 1145.80039 0 98 1158.00000 1145.80039 1.05% - 0s 0 0 1145.80389 0 97 1158.00000 1145.80389 1.05% - 0s 0 0 1145.80553 0 99 1158.00000 1145.80553 1.05% - 0s 0 0 1145.81933 0 96 1158.00000 1145.81933 1.05% - 0s 0 0 1145.85220 0 99 1158.00000 1145.85220 1.05% - 0s 0 0 1145.85727 0 99 1158.00000 1145.85727 1.05% - 0s 0 2 1145.85843 0 99 1158.00000 1145.85843 1.05% - 0s H 27 24 1156.0000000 1146.97091 0.78% 19.7 1s * 50 33 20 1155.0000000 1147.06970 0.69% 18.6 1s * 67 39 14 1154.0000000 1148.11667 0.51% 19.9 1s Cutting planes: Gomory: 2 MIR: 2 Zero half: 26 Explored 1045 nodes (15182 simplex iterations) in 1.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 44), (43, 65), (34, 74), (29, 63), (23, 65), (23, 29), (24, 44), (24, 57), (42, 43), (42, 57)] adding cut for [(32, 56), (19, 51), (19, 25), (40, 73), (10, 40), (11, 32), (11, 73), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(37, 70), (37, 48), (48, 49), (22, 75), (22, 62), (62, 70)] adding cut for [(66, 67), (39, 66), (39, 59), (15, 60), (60, 67)] adding cut for [(61, 72), (61, 71), (21, 38), (21, 71), (38, 72)] Optimize a model with 255 rows, 2850 columns and 24105 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 254 rows, 2850 columns, 24050 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.143800e+03, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1143.80000 0 76 2864.00000 1143.80000 60.1% - 0s Another try with MIP start H 0 0 1161.0000000 1143.80000 1.48% - 0s H 0 0 1160.0000000 1143.80000 1.40% - 0s 0 0 1144.58436 0 87 1160.00000 1144.58436 1.33% - 0s 0 0 1144.58436 0 76 1160.00000 1144.58436 1.33% - 0s 0 0 1145.01944 0 90 1160.00000 1145.01944 1.29% - 0s 0 0 1145.33124 0 93 1160.00000 1145.33124 1.26% - 0s 0 0 1145.33384 0 97 1160.00000 1145.33384 1.26% - 0s 0 0 1145.51826 0 97 1160.00000 1145.51826 1.25% - 0s 0 0 1145.74139 0 94 1160.00000 1145.74139 1.23% - 0s 0 0 1145.74418 0 97 1160.00000 1145.74418 1.23% - 0s 0 0 1145.75700 0 99 1160.00000 1145.75700 1.23% - 0s 0 0 1145.76598 0 97 1160.00000 1145.76598 1.23% - 0s 0 0 1145.76763 0 98 1160.00000 1145.76763 1.23% - 0s 0 0 1145.77864 0 99 1160.00000 1145.77864 1.23% - 0s 0 0 1145.78037 0 102 1160.00000 1145.78037 1.23% - 0s 0 0 1145.81797 0 99 1160.00000 1145.81797 1.22% - 0s 0 0 1145.82582 0 102 1160.00000 1145.82582 1.22% - 0s 0 0 1145.88346 0 100 1160.00000 1145.88346 1.22% - 0s 0 0 1145.91344 0 100 1160.00000 1145.91344 1.21% - 0s 0 0 1145.91344 0 101 1160.00000 1145.91344 1.21% - 0s 0 0 1145.91952 0 96 1160.00000 1145.91952 1.21% - 0s 0 0 1145.93372 0 100 1160.00000 1145.93372 1.21% - 0s 0 0 1145.94823 0 104 1160.00000 1145.94823 1.21% - 0s 0 0 1145.99290 0 94 1160.00000 1145.99290 1.21% - 0s 0 0 1146.00414 0 98 1160.00000 1146.00414 1.21% - 0s 0 0 1146.00833 0 100 1160.00000 1146.00833 1.21% - 0s 0 0 1146.00833 0 100 1160.00000 1146.00833 1.21% - 0s 0 2 1146.02193 0 100 1160.00000 1146.02193 1.21% - 1s * 64 37 19 1154.0000000 1147.26564 0.58% 18.0 1s Cutting planes: Gomory: 1 MIR: 3 Zero half: 32 Explored 1016 nodes (15817 simplex iterations) in 2.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(2, 44), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (23, 65), (23, 29), (29, 62), (62, 70)] adding cut for [(66, 67), (33, 51), (39, 66), (11, 32), (11, 39), (12, 60), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] adding cut for [(34, 64), (34, 74), (4, 45), (4, 25), (50, 57), (24, 64), (24, 57), (25, 50), (63, 74)] adding cut for [(14, 55), (14, 28), (15, 20), (15, 54), (20, 55)] Optimize a model with 259 rows, 2850 columns and 24367 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 258 rows, 2850 columns, 24312 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144129e+03, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.12879 0 85 2864.00000 1144.12879 60.1% - 0s Another try with MIP start H 0 0 1162.0000000 1144.12879 1.54% - 0s 0 0 1144.64935 0 84 1162.00000 1144.64935 1.49% - 0s 0 0 1144.64935 0 85 1162.00000 1144.64935 1.49% - 0s 0 0 1145.54754 0 90 1162.00000 1145.54754 1.42% - 0s 0 0 1145.69337 0 98 1162.00000 1145.69337 1.40% - 0s 0 0 1145.72109 0 101 1162.00000 1145.72109 1.40% - 0s 0 0 1145.72222 0 103 1162.00000 1145.72222 1.40% - 0s 0 0 1145.72222 0 100 1162.00000 1145.72222 1.40% - 0s 0 2 1145.72287 0 100 1162.00000 1145.72287 1.40% - 0s * 369 195 21 1156.0000000 1146.17082 0.85% 16.5 1s H 600 238 1155.0000000 1147.44875 0.65% 16.3 1s * 824 261 37 1154.0000000 1148.63208 0.47% 17.5 2s Cutting planes: Gomory: 9 MIR: 4 Zero half: 36 Explored 1693 nodes (27561 simplex iterations) in 3.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(4, 45), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (37, 38), (37, 48), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (48, 49), (61, 71), (61, 72), (62, 70), (70, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (10, 33), (10, 26), (11, 32), (11, 39), (15, 60), (26, 56), (60, 67)] Optimize a model with 261 rows, 2850 columns and 24675 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 260 rows, 2850 columns, 24620 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144129e+03, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.12879 0 85 2864.00000 1144.12879 60.1% - 0s Another try with MIP start H 0 0 1165.0000000 1144.12879 1.79% - 0s H 0 0 1164.0000000 1144.12879 1.71% - 0s 0 0 1144.64935 0 85 1164.00000 1144.64935 1.66% - 0s 0 0 1144.64935 0 84 1164.00000 1144.64935 1.66% - 0s 0 0 1145.54754 0 90 1164.00000 1145.54754 1.59% - 0s 0 0 1145.65405 0 94 1164.00000 1145.65405 1.58% - 0s 0 0 1145.66136 0 100 1164.00000 1145.66136 1.58% - 0s 0 0 1145.67530 0 99 1164.00000 1145.67530 1.57% - 0s 0 0 1145.69831 0 104 1164.00000 1145.69831 1.57% - 0s 0 0 1145.69992 0 101 1164.00000 1145.69992 1.57% - 0s 0 0 1145.70191 0 102 1164.00000 1145.70191 1.57% - 0s 0 2 1145.70360 0 102 1164.00000 1145.70360 1.57% - 0s * 88 81 59 1163.0000000 1146.45980 1.42% 17.1 0s * 132 102 30 1160.0000000 1146.53815 1.16% 17.0 0s * 282 200 57 1159.0000000 1146.55277 1.07% 15.2 0s H 488 180 1155.0000000 1147.44535 0.65% 15.1 1s H 781 219 1154.0000000 1149.41176 0.40% 17.0 2s Cutting planes: Gomory: 7 MIR: 5 Zero half: 32 Explored 1270 nodes (20802 simplex iterations) in 3.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(33, 45), (4, 45), (4, 25), (42, 44), (42, 57), (43, 65), (43, 44), (48, 49), (22, 48), (22, 62), (24, 50), (24, 57), (25, 50), (23, 65), (23, 62)] adding cut for [(37, 70), (70, 72), (14, 58), (14, 28), (16, 58), (16, 38), (21, 71), (21, 38), (6, 37), (6, 30), (61, 71), (61, 72)] adding cut for [(66, 67), (39, 66), (10, 51), (11, 32), (11, 39), (15, 60), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] Optimize a model with 264 rows, 2850 columns and 24939 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 263 rows, 2850 columns, 24884 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144201e+03, 243 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.20109 0 81 2864.00000 1144.20109 60.0% - 0s Another try with MIP start H 0 0 1161.0000000 1144.20109 1.45% - 0s 0 0 1144.58654 0 87 1161.00000 1144.58654 1.41% - 0s 0 0 1144.58654 0 80 1161.00000 1144.58654 1.41% - 0s 0 0 1145.09489 0 91 1161.00000 1145.09489 1.37% - 0s 0 0 1145.27364 0 95 1161.00000 1145.27364 1.35% - 0s 0 0 1145.37327 0 96 1161.00000 1145.37327 1.35% - 0s 0 0 1145.49489 0 101 1161.00000 1145.49489 1.34% - 0s 0 0 1145.53509 0 105 1161.00000 1145.53509 1.33% - 0s 0 0 1145.59093 0 92 1161.00000 1145.59093 1.33% - 0s 0 0 1145.62641 0 100 1161.00000 1145.62641 1.32% - 0s 0 0 1145.71280 0 101 1161.00000 1145.71280 1.32% - 0s 0 0 1145.73403 0 100 1161.00000 1145.73403 1.31% - 0s 0 0 1145.73403 0 99 1161.00000 1145.73403 1.31% - 0s 0 2 1145.75131 0 99 1161.00000 1145.75131 1.31% - 0s * 327 195 34 1158.0000000 1148.11359 0.85% 17.2 0s * 635 342 30 1154.0000000 1149.32190 0.41% 16.4 1s Cutting planes: Gomory: 3 MIR: 1 Zero half: 11 Explored 1379 nodes (23318 simplex iterations) in 3.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(14, 55), (16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(66, 67), (39, 66), (11, 39), (11, 59), (12, 60), (60, 67)] adding cut for [(22, 75), (22, 48), (23, 29), (23, 63), (29, 75)] Optimize a model with 267 rows, 2850 columns and 25300 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 266 rows, 2850 columns, 25245 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144201e+03, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.20109 0 82 2864.00000 1144.20109 60.0% - 0s Another try with MIP start H 0 0 1161.0000000 1144.20109 1.45% - 0s 0 0 1144.58654 0 86 1161.00000 1144.58654 1.41% - 0s 0 0 1144.58654 0 80 1161.00000 1144.58654 1.41% - 0s 0 0 1145.09489 0 91 1161.00000 1145.09489 1.37% - 0s 0 0 1145.27364 0 95 1161.00000 1145.27364 1.35% - 0s 0 0 1145.37327 0 96 1161.00000 1145.37327 1.35% - 0s 0 0 1145.49489 0 101 1161.00000 1145.49489 1.34% - 0s 0 0 1145.53509 0 106 1161.00000 1145.53509 1.33% - 0s 0 0 1145.61155 0 93 1161.00000 1145.61155 1.33% - 0s 0 0 1145.65886 0 103 1161.00000 1145.65886 1.32% - 0s 0 0 1145.68353 0 105 1161.00000 1145.68353 1.32% - 0s 0 0 1145.70127 0 109 1161.00000 1145.70127 1.32% - 0s 0 0 1145.70852 0 109 1161.00000 1145.70852 1.32% - 0s 0 0 1145.78191 0 104 1161.00000 1145.78191 1.31% - 0s 0 0 1145.78194 0 103 1161.00000 1145.78194 1.31% - 0s 0 0 1145.78452 0 106 1161.00000 1145.78452 1.31% - 0s 0 0 1145.79278 0 107 1161.00000 1145.79278 1.31% - 0s 0 0 1145.79278 0 107 1161.00000 1145.79278 1.31% - 0s 0 2 1145.79568 0 107 1161.00000 1145.79568 1.31% - 0s * 314 210 33 1158.0000000 1146.81997 0.97% 17.3 1s * 363 203 29 1157.0000000 1146.81997 0.88% 17.4 1s * 584 257 26 1156.0000000 1147.71111 0.72% 17.1 1s * 585 221 26 1155.0000000 1147.71111 0.63% 17.0 1s * 1191 218 30 1154.0000000 1151.25664 0.24% 18.7 3s Cutting planes: Gomory: 4 MIR: 3 Zero half: 36 Explored 1413 nodes (25587 simplex iterations) in 3.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.154000000000e+03, best bound 1.154000000000e+03, gap 0.0% adding cut for [(34, 64), (32, 56), (32, 59), (17, 64), (17, 50), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 57), (43, 65), (23, 65), (23, 63), (24, 44), (24, 57)] adding cut for [(6, 38), (29, 62), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(66, 67), (39, 66), (40, 73), (10, 40), (11, 39), (11, 73), (15, 60), (60, 67)] Optimize a model with 271 rows, 2850 columns and 25481 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 270 rows, 2850 columns, 25426 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144201e+03, 267 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.20109 0 80 2864.00000 1144.20109 60.0% - 0s Another try with MIP start H 0 0 1164.0000000 1144.20109 1.70% - 0s 0 0 1144.58654 0 88 1164.00000 1144.58654 1.67% - 0s 0 0 1144.58654 0 80 1164.00000 1144.58654 1.67% - 0s 0 0 1145.07341 0 87 1164.00000 1145.07341 1.63% - 0s 0 0 1145.28276 0 97 1164.00000 1145.28276 1.61% - 0s 0 0 1145.38489 0 98 1164.00000 1145.38489 1.60% - 0s 0 0 1145.41433 0 101 1164.00000 1145.41433 1.60% - 0s 0 0 1145.42294 0 102 1164.00000 1145.42294 1.60% - 0s 0 0 1145.46366 0 100 1164.00000 1145.46366 1.59% - 0s 0 0 1145.49800 0 107 1164.00000 1145.49800 1.59% - 0s 0 0 1145.49831 0 109 1164.00000 1145.49831 1.59% - 0s 0 0 1145.49831 0 108 1164.00000 1145.49831 1.59% - 0s 0 2 1145.50760 0 108 1164.00000 1145.50760 1.59% - 0s H 74 74 1163.0000000 1145.86917 1.47% 19.9 0s * 88 86 53 1162.0000000 1145.86917 1.39% 18.6 0s * 142 119 39 1160.0000000 1145.99534 1.21% 18.8 0s H 600 368 1159.0000000 1147.42557 1.00% 16.9 1s * 966 459 37 1158.0000000 1149.54211 0.73% 18.8 3s * 1283 442 38 1157.0000000 1150.93493 0.52% 18.4 3s * 1380 354 27 1156.0000000 1151.05172 0.43% 18.3 3s 1925 395 1154.21429 36 61 1156.00000 1151.27397 0.41% 18.5 5s * 2037 336 42 1155.0000000 1151.27397 0.32% 18.4 5s Cutting planes: Gomory: 9 MIR: 1 Zero half: 7 Explored 2975 nodes (51219 simplex iterations) in 6.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.155000000000e+03, best bound 1.155000000000e+03, gap 0.0% adding cut for [(2, 64), (2, 74), (43, 65), (43, 44), (29, 75), (17, 64), (17, 50), (24, 57), (24, 25), (25, 50), (42, 44), (42, 57), (23, 65), (23, 29), (63, 74)] adding cut for [(48, 49), (37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (22, 48), (22, 62), (61, 71), (61, 72), (62, 70)] adding cut for [(33, 51), (33, 45), (4, 45), (11, 32), (11, 59), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(66, 67), (36, 54), (39, 66), (15, 54), (15, 60), (60, 67)] Optimize a model with 275 rows, 2850 columns and 25745 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 274 rows, 2850 columns, 25690 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.144201e+03, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1144.20109 0 81 2864.00000 1144.20109 60.0% - 0s Another try with MIP start H 0 0 1164.0000000 1144.20109 1.70% - 0s 0 0 1144.63708 0 86 1164.00000 1144.63708 1.66% - 0s 0 0 1144.63708 0 81 1164.00000 1144.63708 1.66% - 0s 0 0 1145.21911 0 85 1164.00000 1145.21911 1.61% - 0s 0 0 1145.34766 0 95 1164.00000 1145.34766 1.60% - 0s 0 0 1145.45094 0 99 1164.00000 1145.45094 1.59% - 0s 0 0 1145.55734 0 98 1164.00000 1145.55734 1.58% - 0s 0 0 1145.59401 0 101 1164.00000 1145.59401 1.58% - 0s 0 0 1145.70606 0 102 1164.00000 1145.70606 1.57% - 0s 0 0 1145.77643 0 104 1164.00000 1145.77643 1.57% - 0s 0 0 1145.85073 0 104 1164.00000 1145.85073 1.56% - 0s 0 0 1145.88867 0 110 1164.00000 1145.88867 1.56% - 0s 0 0 1145.89509 0 106 1164.00000 1145.89509 1.56% - 0s 0 0 1145.89509 0 106 1164.00000 1145.89509 1.56% - 0s 0 2 1145.98296 0 105 1164.00000 1145.98296 1.55% - 0s * 191 148 38 1163.0000000 1147.67684 1.32% 18.4 0s * 325 215 28 1160.0000000 1147.88000 1.04% 18.0 1s * 564 320 25 1159.0000000 1148.85185 0.88% 18.2 1s H 700 272 1156.0000000 1149.26973 0.58% 17.9 1s * 2574 434 28 1155.0000000 1152.10985 0.25% 17.3 4s 2774 404 1153.29630 25 79 1155.00000 1152.32331 0.23% 17.1 5s Cutting planes: Gomory: 12 MIR: 3 Zero half: 37 Explored 3579 nodes (58016 simplex iterations) in 5.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.155000000000e+03, best bound 1.155000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 64), (17, 50), (21, 38), (21, 71), (22, 29), (22, 62), (23, 29), (23, 65), (24, 57), (24, 64), (25, 50), (25, 57), (37, 38), (37, 48), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (62, 70), (70, 72)] adding cut for [(19, 51), (19, 56), (33, 51), (40, 73), (10, 33), (10, 40), (11, 32), (11, 59), (26, 32), (26, 56)] adding cut for [(39, 66), (66, 67), (60, 67), (15, 60)] Optimize a model with 278 rows, 2850 columns and 26063 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 277 rows, 2850 columns, 26008 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 277 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 85 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1160.0000000 1145.08511 1.29% - 0s 0 0 1145.37091 0 91 1160.00000 1145.37091 1.26% - 0s 0 0 1145.37091 0 87 1160.00000 1145.37091 1.26% - 0s 0 0 1146.51021 0 98 1160.00000 1146.51021 1.16% - 0s 0 0 1146.71152 0 97 1160.00000 1146.71152 1.15% - 0s 0 0 1146.81014 0 96 1160.00000 1146.81014 1.14% - 0s 0 0 1146.81884 0 101 1160.00000 1146.81884 1.14% - 0s 0 0 1146.84396 0 100 1160.00000 1146.84396 1.13% - 0s 0 0 1146.84396 0 100 1160.00000 1146.84396 1.13% - 0s 0 2 1146.84587 0 100 1160.00000 1146.84587 1.13% - 0s * 125 93 35 1158.0000000 1147.05746 0.94% 18.5 0s * 720 381 40 1157.0000000 1148.78323 0.71% 19.7 2s * 1013 380 30 1156.0000000 1149.86011 0.53% 19.9 2s 2982 279 1154.54688 24 75 1156.00000 1153.44291 0.22% 16.7 5s Cutting planes: Gomory: 11 MIR: 4 Zero half: 27 Explored 3559 nodes (57154 simplex iterations) in 5.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(37, 38), (37, 48), (42, 44), (42, 57), (43, 65), (43, 44), (21, 38), (21, 71), (22, 48), (24, 64), (24, 57), (70, 72), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (15, 54), (15, 60), (17, 50), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(6, 16), (6, 30), (9, 20), (14, 55), (14, 58), (16, 58), (20, 55)] adding cut for [(11, 59), (11, 39), (12, 39)] Optimize a model with 282 rows, 2850 columns and 26311 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 281 rows, 2850 columns, 26256 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 85 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1191.0000000 1145.08511 3.86% - 0s H 0 0 1167.0000000 1145.08511 1.88% - 0s 0 0 1145.84253 0 92 1167.00000 1145.84253 1.81% - 0s 0 0 1145.84253 0 87 1167.00000 1145.84253 1.81% - 0s 0 0 1146.32154 0 98 1167.00000 1146.32154 1.77% - 0s 0 0 1146.65505 0 101 1167.00000 1146.65505 1.74% - 0s 0 0 1146.75786 0 94 1167.00000 1146.75786 1.73% - 0s 0 0 1146.78501 0 99 1167.00000 1146.78501 1.73% - 0s 0 0 1146.85004 0 101 1167.00000 1146.85004 1.73% - 0s 0 0 1146.88634 0 104 1167.00000 1146.88634 1.72% - 0s 0 0 1146.89927 0 105 1167.00000 1146.89927 1.72% - 0s 0 0 1146.91977 0 101 1167.00000 1146.91977 1.72% - 0s 0 0 1146.92342 0 103 1167.00000 1146.92342 1.72% - 0s 0 0 1146.92342 0 102 1167.00000 1146.92342 1.72% - 0s 0 2 1146.94406 0 102 1167.00000 1146.94406 1.72% - 0s * 86 82 54 1165.0000000 1147.33676 1.52% 19.2 0s * 133 92 32 1162.0000000 1147.38306 1.26% 19.1 0s * 265 97 18 1157.0000000 1147.57728 0.81% 17.8 1s * 407 143 14 1156.0000000 1148.18343 0.68% 18.2 1s Cutting planes: Gomory: 9 MIR: 4 Zero half: 37 Explored 2081 nodes (34306 simplex iterations) in 4.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (14, 55), (14, 58), (15, 54), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 62), (22, 70), (23, 62), (23, 65), (34, 74), (36, 54), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72)] adding cut for [(51, 56), (17, 64), (10, 26), (24, 64), (24, 57), (50, 57), (19, 51), (19, 25), (25, 50), (26, 56)] adding cut for [(32, 40), (66, 67), (39, 66), (11, 32), (11, 39), (12, 60), (60, 67)] Optimize a model with 285 rows, 2850 columns and 26694 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 284 rows, 2850 columns, 26639 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 85 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1162.0000000 1145.08511 1.46% - 0s 0 0 1145.84253 0 91 1162.00000 1145.84253 1.39% - 0s 0 0 1145.84253 0 86 1162.00000 1145.84253 1.39% - 0s 0 0 1146.35890 0 102 1162.00000 1146.35890 1.35% - 0s 0 0 1146.75865 0 91 1162.00000 1146.75865 1.31% - 0s 0 0 1146.77439 0 99 1162.00000 1146.77439 1.31% - 0s 0 0 1146.83459 0 97 1162.00000 1146.83459 1.31% - 0s 0 0 1146.84654 0 98 1162.00000 1146.84654 1.30% - 0s 0 0 1146.90699 0 103 1162.00000 1146.90699 1.30% - 0s 0 0 1146.91546 0 104 1162.00000 1146.91546 1.30% - 0s 0 0 1146.98341 0 107 1162.00000 1146.98341 1.29% - 0s 0 0 1147.02659 0 105 1162.00000 1147.02659 1.29% - 0s 0 0 1147.03306 0 107 1162.00000 1147.03306 1.29% - 0s 0 0 1147.05169 0 105 1162.00000 1147.05169 1.29% - 0s 0 0 1147.08171 0 106 1162.00000 1147.08171 1.28% - 0s 0 0 1147.10316 0 111 1162.00000 1147.10316 1.28% - 0s 0 0 1147.16439 0 111 1162.00000 1147.16439 1.28% - 0s 0 0 1147.16652 0 111 1162.00000 1147.16652 1.28% - 0s 0 0 1147.16652 0 111 1162.00000 1147.16652 1.28% - 0s 0 2 1147.18204 0 111 1162.00000 1147.18204 1.28% - 0s * 79 69 54 1158.0000000 1147.70388 0.89% 20.8 0s H 640 384 1157.0000000 1149.38807 0.66% 19.8 2s H 812 394 1156.0000000 1150.36020 0.49% 20.3 2s Cutting planes: Gomory: 10 MIR: 4 Zero half: 40 Explored 2475 nodes (44218 simplex iterations) in 4.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (42, 43), (42, 57), (11, 32), (11, 66), (15, 60), (24, 50), (24, 57), (43, 65), (25, 50), (26, 51), (26, 56), (60, 67), (29, 62), (29, 63), (23, 65), (23, 62)] adding cut for [(37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (22, 75), (22, 70), (61, 71), (61, 72)] adding cut for [(12, 54), (12, 39), (39, 59)] Optimize a model with 288 rows, 2850 columns and 26965 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 287 rows, 2850 columns, 26910 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 282 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 88 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1164.0000000 1145.08511 1.62% - 0s H 0 0 1163.0000000 1145.08511 1.54% - 0s 0 0 1146.30086 0 96 1163.00000 1146.30086 1.44% - 0s 0 0 1146.30086 0 85 1163.00000 1146.30086 1.44% - 0s 0 0 1146.36910 0 103 1163.00000 1146.36910 1.43% - 0s 0 0 1146.63596 0 103 1163.00000 1146.63596 1.41% - 0s 0 0 1146.77651 0 98 1163.00000 1146.77651 1.39% - 0s 0 0 1146.85564 0 100 1163.00000 1146.85564 1.39% - 0s 0 0 1146.90303 0 103 1163.00000 1146.90303 1.38% - 0s 0 0 1146.91417 0 104 1163.00000 1146.91417 1.38% - 0s 0 0 1146.95661 0 104 1163.00000 1146.95661 1.38% - 0s 0 0 1146.95687 0 105 1163.00000 1146.95687 1.38% - 0s 0 0 1146.98989 0 97 1163.00000 1146.98989 1.38% - 0s 0 0 1147.01543 0 103 1163.00000 1147.01543 1.37% - 0s 0 0 1147.07767 0 102 1163.00000 1147.07767 1.37% - 0s 0 0 1147.09625 0 107 1163.00000 1147.09625 1.37% - 0s 0 0 1147.14685 0 104 1163.00000 1147.14685 1.36% - 0s 0 0 1147.16016 0 106 1163.00000 1147.16016 1.36% - 0s 0 0 1147.17450 0 105 1163.00000 1147.17450 1.36% - 0s 0 0 1147.17497 0 105 1163.00000 1147.17497 1.36% - 0s 0 0 1147.18506 0 103 1163.00000 1147.18506 1.36% - 0s 0 0 1147.18506 0 104 1163.00000 1147.18506 1.36% - 0s 0 0 1147.18506 0 104 1163.00000 1147.18506 1.36% - 0s 0 2 1147.23136 0 104 1163.00000 1147.23136 1.36% - 0s * 326 199 30 1160.0000000 1148.48617 0.99% 18.3 1s * 441 200 25 1158.0000000 1148.85124 0.79% 18.4 1s * 1084 333 35 1157.0000000 1150.78571 0.54% 19.6 3s * 1257 264 33 1156.0000000 1151.12139 0.42% 19.4 3s 2587 229 1153.91924 20 88 1156.00000 1153.37500 0.23% 17.5 5s Cutting planes: Gomory: 14 MIR: 8 Zero half: 21 Explored 3230 nodes (53604 simplex iterations) in 5.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(37, 72), (37, 70), (29, 62), (21, 38), (21, 71), (23, 29), (23, 63), (61, 71), (61, 72), (62, 70)] adding cut for [(6, 16), (6, 30), (14, 55), (14, 58), (15, 36), (15, 54), (16, 58), (20, 36), (20, 55)] adding cut for [(66, 67), (39, 66), (39, 59), (40, 73), (10, 40), (12, 60), (59, 73), (60, 67)] adding cut for [(42, 65), (42, 44), (43, 65), (43, 44)] Optimize a model with 293 rows, 2850 columns and 27162 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 292 rows, 2850 columns, 27107 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 276 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 88 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1167.0000000 1145.08511 1.88% - 0s H 0 0 1163.0000000 1145.08511 1.54% - 0s 0 0 1146.13833 0 92 1163.00000 1146.13833 1.45% - 0s 0 0 1146.13833 0 85 1163.00000 1146.13833 1.45% - 0s 0 0 1146.32851 0 102 1163.00000 1146.32851 1.43% - 0s 0 0 1146.59296 0 102 1163.00000 1146.59296 1.41% - 0s 0 0 1146.63735 0 102 1163.00000 1146.63735 1.41% - 0s 0 0 1146.71448 0 101 1163.00000 1146.71448 1.40% - 0s 0 0 1146.84160 0 102 1163.00000 1146.84160 1.39% - 0s 0 0 1146.87192 0 102 1163.00000 1146.87192 1.39% - 0s 0 0 1146.87192 0 104 1163.00000 1146.87192 1.39% - 0s 0 0 1146.87192 0 104 1163.00000 1146.87192 1.39% - 0s 0 2 1146.89764 0 104 1163.00000 1146.89764 1.38% - 0s * 67 65 43 1161.0000000 1146.98080 1.21% 21.6 0s * 70 65 45 1160.0000000 1146.98080 1.12% 21.0 0s * 565 334 17 1158.0000000 1149.38294 0.74% 17.1 1s * 811 399 36 1157.0000000 1149.58333 0.64% 18.2 2s H 822 373 1156.0000000 1149.58333 0.56% 18.3 2s Cutting planes: Gomory: 7 MIR: 2 Zero half: 8 Explored 2593 nodes (43434 simplex iterations) in 4.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(4, 45), (42, 43), (42, 57), (43, 65), (45, 51), (24, 50), (24, 57), (19, 56), (19, 25), (22, 49), (22, 62), (25, 50), (26, 51), (26, 56), (62, 65)] adding cut for [(16, 58), (16, 38), (6, 48), (6, 30), (70, 72), (14, 58), (14, 28), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (12, 60), (60, 67)] Optimize a model with 296 rows, 2850 columns and 27401 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 295 rows, 2850 columns, 27346 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145085e+03, 269 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.08511 0 85 2864.00000 1145.08511 60.0% - 0s Another try with MIP start H 0 0 1158.0000000 1145.08511 1.12% - 0s 0 0 1146.28808 0 101 1158.00000 1146.28808 1.01% - 0s 0 0 1146.28808 0 86 1158.00000 1146.28808 1.01% - 0s 0 0 1146.35517 0 102 1158.00000 1146.35517 1.01% - 0s 0 0 1146.65228 0 100 1158.00000 1146.65228 0.98% - 0s 0 0 1146.74338 0 102 1158.00000 1146.74338 0.97% - 0s 0 0 1146.75953 0 102 1158.00000 1146.75953 0.97% - 0s 0 0 1146.91226 0 102 1158.00000 1146.91226 0.96% - 0s 0 0 1146.95001 0 107 1158.00000 1146.95001 0.95% - 0s 0 0 1146.98045 0 106 1158.00000 1146.98045 0.95% - 0s 0 0 1147.01263 0 109 1158.00000 1147.01263 0.95% - 0s 0 0 1147.04249 0 108 1158.00000 1147.04249 0.95% - 0s 0 0 1147.10019 0 103 1158.00000 1147.10019 0.94% - 0s 0 0 1147.10860 0 108 1158.00000 1147.10860 0.94% - 0s 0 0 1147.10860 0 106 1158.00000 1147.10860 0.94% - 0s 0 2 1147.11875 0 106 1158.00000 1147.11875 0.94% - 0s * 1206 404 39 1156.0000000 1150.77629 0.45% 19.3 3s 2542 101 cutoff 27 1156.00000 1154.02778 0.17% 17.3 5s Cutting planes: Gomory: 18 MIR: 5 Zero half: 33 Explored 2696 nodes (46014 simplex iterations) in 5.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (39, 66), (11, 32), (11, 66), (34, 64), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 57), (43, 65), (29, 75), (23, 65), (23, 29), (24, 44), (24, 57)] adding cut for [(37, 70), (70, 72), (16, 58), (16, 38), (21, 71), (21, 38), (6, 37), (6, 30), (61, 71), (61, 72)] adding cut for [(12, 67), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 300 rows, 2850 columns and 27605 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 299 rows, 2850 columns, 27550 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145586e+03, 255 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.58645 0 87 2864.00000 1145.58645 60.0% - 0s Another try with MIP start H 0 0 1165.0000000 1145.58645 1.67% - 0s H 0 0 1160.0000000 1145.58645 1.24% - 0s 0 0 1146.30326 0 94 1160.00000 1146.30326 1.18% - 0s 0 0 1146.30326 0 87 1160.00000 1146.30326 1.18% - 0s 0 0 1146.30326 0 94 1160.00000 1146.30326 1.18% - 0s 0 0 1146.61587 0 93 1160.00000 1146.61587 1.15% - 0s 0 0 1146.67980 0 100 1160.00000 1146.67980 1.15% - 0s 0 0 1146.79951 0 99 1160.00000 1146.79951 1.14% - 0s 0 0 1146.83472 0 97 1160.00000 1146.83472 1.13% - 0s 0 0 1146.88355 0 100 1160.00000 1146.88355 1.13% - 0s 0 0 1146.96969 0 99 1160.00000 1146.96969 1.12% - 0s 0 0 1146.99528 0 102 1160.00000 1146.99528 1.12% - 0s 0 0 1147.04084 0 103 1160.00000 1147.04084 1.12% - 0s 0 0 1147.06954 0 103 1160.00000 1147.06954 1.11% - 0s 0 0 1147.18457 0 102 1160.00000 1147.18457 1.10% - 0s 0 0 1147.18911 0 98 1160.00000 1147.18911 1.10% - 0s 0 0 1147.19035 0 101 1160.00000 1147.19035 1.10% - 0s 0 0 1147.19569 0 103 1160.00000 1147.19569 1.10% - 0s 0 0 1147.19569 0 102 1160.00000 1147.19569 1.10% - 0s 0 2 1147.19655 0 102 1160.00000 1147.19655 1.10% - 0s * 271 181 25 1158.0000000 1147.55907 0.90% 20.3 1s * 1296 412 32 1157.0000000 1151.30894 0.49% 19.7 3s 2302 497 1155.41667 24 88 1157.00000 1152.48810 0.39% 18.6 5s * 3001 412 26 1156.0000000 1153.00000 0.26% 17.8 5s Cutting planes: Gomory: 11 MIR: 3 Zero half: 22 Explored 3968 nodes (66584 simplex iterations) in 6.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(4, 45), (14, 58), (16, 38), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (45, 51), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(66, 67), (39, 66), (10, 32), (10, 33), (11, 32), (11, 39), (12, 60), (60, 67)] Optimize a model with 302 rows, 2850 columns and 27941 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 301 rows, 2850 columns, 27886 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145586e+03, 284 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.58645 0 88 2864.00000 1145.58645 60.0% - 0s Another try with MIP start H 0 0 1161.0000000 1145.58645 1.33% - 0s H 0 0 1160.0000000 1145.58645 1.24% - 0s 0 0 1146.52836 0 94 1160.00000 1146.52836 1.16% - 0s 0 0 1146.52836 0 87 1160.00000 1146.52836 1.16% - 0s 0 0 1146.52836 0 96 1160.00000 1146.52836 1.16% - 0s 0 0 1146.63250 0 91 1160.00000 1146.63250 1.15% - 0s 0 0 1146.69370 0 96 1160.00000 1146.69370 1.15% - 0s 0 0 1146.98931 0 97 1160.00000 1146.98931 1.12% - 0s 0 0 1147.04842 0 104 1160.00000 1147.04842 1.12% - 0s 0 0 1147.10392 0 103 1160.00000 1147.10392 1.11% - 0s 0 0 1147.13412 0 106 1160.00000 1147.13412 1.11% - 0s 0 0 1147.13596 0 109 1160.00000 1147.13596 1.11% - 0s 0 0 1147.13596 0 108 1160.00000 1147.13596 1.11% - 0s 0 2 1147.13655 0 108 1160.00000 1147.13655 1.11% - 0s * 119 73 41 1157.0000000 1147.52930 0.82% 20.0 0s * 2946 344 30 1156.0000000 1152.96581 0.26% 15.6 4s Explored 3808 nodes (56244 simplex iterations) in 4.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.156000000000e+03, best bound 1.156000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (43, 65), (40, 73), (10, 40), (11, 32), (11, 73), (29, 63), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (42, 43), (42, 57), (23, 65), (23, 29)] adding cut for [(37, 38), (37, 48), (48, 49), (21, 38), (21, 71), (22, 75), (22, 62), (70, 72), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (39, 59), (12, 60), (60, 67)] Optimize a model with 305 rows, 2850 columns and 28193 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 304 rows, 2850 columns, 28138 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145586e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.58645 0 87 2864.00000 1145.58645 60.0% - 0s Another try with MIP start H 0 0 1164.0000000 1145.58645 1.58% - 0s H 0 0 1160.0000000 1145.58645 1.24% - 0s 0 0 1146.16729 0 91 1160.00000 1146.16729 1.19% - 0s 0 0 1146.16729 0 87 1160.00000 1146.16729 1.19% - 0s 0 0 1146.53609 0 94 1160.00000 1146.53609 1.16% - 0s 0 0 1146.58461 0 95 1160.00000 1146.58461 1.16% - 0s 0 0 1146.64741 0 101 1160.00000 1146.64741 1.15% - 0s 0 0 1146.87682 0 95 1160.00000 1146.87682 1.13% - 0s 0 0 1146.96583 0 100 1160.00000 1146.96583 1.12% - 0s 0 0 1147.11095 0 106 1160.00000 1147.11095 1.11% - 0s 0 0 1147.14810 0 105 1160.00000 1147.14810 1.11% - 0s 0 0 1147.21628 0 103 1160.00000 1147.21628 1.10% - 0s 0 0 1147.25921 0 102 1160.00000 1147.25921 1.10% - 0s 0 0 1147.29005 0 102 1160.00000 1147.29005 1.10% - 0s 0 0 1147.30021 0 100 1160.00000 1147.30021 1.09% - 0s 0 0 1147.30656 0 106 1160.00000 1147.30656 1.09% - 0s 0 0 1147.30656 0 105 1160.00000 1147.30656 1.09% - 0s 0 2 1147.30685 0 105 1160.00000 1147.30685 1.09% - 0s H 1275 528 1158.0000000 1149.91853 0.70% 18.5 3s 2210 713 1154.52174 24 59 1158.00000 1151.90440 0.53% 18.2 5s * 2825 798 24 1157.0000000 1152.46875 0.39% 17.8 5s 5499 445 1155.39344 32 71 1157.00000 1153.80142 0.28% 16.9 10s Cutting planes: Gomory: 8 MIR: 3 Zero half: 12 Explored 7183 nodes (114052 simplex iterations) in 11.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.157000000000e+03, best bound 1.157000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 23), (11, 32), (11, 39), (39, 66), (12, 60), (43, 65), (43, 44), (66, 67), (19, 56), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 32), (26, 56), (60, 67), (42, 44), (42, 57)] adding cut for [(70, 72), (16, 38), (16, 58), (21, 38), (21, 71), (28, 58), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(36, 54), (14, 55), (15, 20), (15, 54), (20, 55)] Optimize a model with 308 rows, 2850 columns and 28473 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 307 rows, 2850 columns, 28418 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145591e+03, 270 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.59060 0 88 2864.00000 1145.59060 60.0% - 0s Another try with MIP start H 0 0 1167.0000000 1145.59060 1.83% - 0s H 0 0 1164.0000000 1145.59060 1.58% - 0s 0 0 1146.30372 0 94 1164.00000 1146.30372 1.52% - 0s 0 0 1146.30372 0 88 1164.00000 1146.30372 1.52% - 0s 0 0 1146.32938 0 88 1164.00000 1146.32938 1.52% - 0s 0 0 1146.61386 0 97 1164.00000 1146.61386 1.49% - 0s 0 0 1146.65546 0 101 1164.00000 1146.65546 1.49% - 0s 0 0 1146.69628 0 102 1164.00000 1146.69628 1.49% - 0s 0 0 1146.84643 0 102 1164.00000 1146.84643 1.47% - 0s 0 0 1146.92515 0 97 1164.00000 1146.92515 1.47% - 0s 0 0 1146.94239 0 103 1164.00000 1146.94239 1.47% - 0s 0 0 1146.94376 0 104 1164.00000 1146.94376 1.47% - 0s 0 0 1147.01032 0 107 1164.00000 1147.01032 1.46% - 0s 0 0 1147.06495 0 99 1164.00000 1147.06495 1.45% - 0s 0 0 1147.08863 0 101 1164.00000 1147.08863 1.45% - 0s 0 0 1147.15700 0 106 1164.00000 1147.15700 1.45% - 0s 0 0 1147.18061 0 108 1164.00000 1147.18061 1.44% - 0s 0 0 1147.18335 0 111 1164.00000 1147.18335 1.44% - 0s 0 0 1147.18335 0 111 1164.00000 1147.18335 1.44% - 0s 0 2 1147.18351 0 111 1164.00000 1147.18351 1.44% - 0s * 82 80 54 1161.0000000 1147.44148 1.17% 19.0 1s * 283 176 34 1158.0000000 1147.54490 0.90% 17.1 1s * 1348 416 32 1157.0000000 1150.82039 0.53% 20.8 4s 1635 423 1154.92222 20 75 1157.00000 1151.03570 0.52% 20.7 5s 4700 817 1154.86957 24 85 1157.00000 1153.55395 0.30% 18.5 10s Cutting planes: Gomory: 8 MIR: 7 Zero half: 52 Mod-K: 1 Explored 7195 nodes (123129 simplex iterations) in 13.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.157000000000e+03, best bound 1.157000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (14, 55), (14, 58), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 70), (22, 62), (61, 71), (61, 72), (62, 63)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (11, 32), (11, 66), (15, 54), (15, 60), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(49, 75), (42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (23, 65), (23, 29), (24, 64), (24, 57), (29, 75)] Optimize a model with 311 rows, 2850 columns and 28737 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 310 rows, 2850 columns, 28682 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145591e+03, 267 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.59060 0 88 2864.00000 1145.59060 60.0% - 0s Another try with MIP start H 0 0 1163.0000000 1145.59060 1.50% - 0s H 0 0 1162.0000000 1145.59060 1.41% - 0s 0 0 1146.28043 0 96 1162.00000 1146.28043 1.35% - 0s 0 0 1146.28043 0 88 1162.00000 1146.28043 1.35% - 0s 0 0 1146.28043 0 96 1162.00000 1146.28043 1.35% - 0s 0 0 1146.70796 0 97 1162.00000 1146.70796 1.32% - 0s 0 0 1146.71414 0 96 1162.00000 1146.71414 1.32% - 0s 0 0 1146.82504 0 102 1162.00000 1146.82504 1.31% - 0s 0 0 1146.84007 0 103 1162.00000 1146.84007 1.30% - 0s 0 0 1146.90851 0 103 1162.00000 1146.90851 1.30% - 0s 0 0 1146.91961 0 104 1162.00000 1146.91961 1.30% - 0s 0 0 1146.92115 0 106 1162.00000 1146.92115 1.30% - 0s 0 0 1146.92459 0 107 1162.00000 1146.92459 1.30% - 0s 0 0 1146.92459 0 107 1162.00000 1146.92459 1.30% - 0s 0 2 1146.92470 0 105 1162.00000 1146.92470 1.30% - 0s * 174 120 43 1159.0000000 1147.01362 1.03% 19.4 1s * 1341 475 23 1158.0000000 1151.66835 0.55% 20.5 4s 1902 520 1156.01493 22 82 1158.00000 1152.58246 0.47% 20.1 5s * 5291 589 26 1157.0000000 1154.75000 0.19% 17.7 9s 5446 525 cutoff 19 1157.00000 1154.93365 0.18% 17.6 10s Cutting planes: Gomory: 7 MIR: 2 Zero half: 41 Explored 6150 nodes (102945 simplex iterations) in 10.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.157000000000e+03, best bound 1.157000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 34), (66, 67), (32, 66), (32, 56), (34, 64), (15, 20), (15, 60), (50, 64), (19, 51), (19, 25), (20, 55), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(16, 58), (16, 38), (6, 48), (6, 30), (70, 72), (14, 58), (21, 71), (21, 38), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (23, 65), (23, 62), (24, 57), (29, 62), (29, 63)] Optimize a model with 314 rows, 2850 columns and 29006 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 313 rows, 2850 columns, 28951 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145591e+03, 265 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.59060 0 88 2864.00000 1145.59060 60.0% - 0s Another try with MIP start H 0 0 1167.0000000 1145.59060 1.83% - 0s 0 0 1146.32938 0 87 1167.00000 1146.32938 1.77% - 0s 0 0 1146.32938 0 89 1167.00000 1146.32938 1.77% - 0s 0 0 1146.33346 0 89 1167.00000 1146.33346 1.77% - 0s 0 0 1146.56193 0 98 1167.00000 1146.56193 1.75% - 0s 0 0 1146.64216 0 101 1167.00000 1146.64216 1.74% - 0s 0 0 1146.69985 0 103 1167.00000 1146.69985 1.74% - 0s 0 0 1146.75599 0 102 1167.00000 1146.75599 1.73% - 0s 0 0 1146.86738 0 100 1167.00000 1146.86738 1.73% - 0s 0 0 1146.94656 0 105 1167.00000 1146.94656 1.72% - 0s 0 0 1147.00400 0 100 1167.00000 1147.00400 1.71% - 0s 0 0 1147.02643 0 108 1167.00000 1147.02643 1.71% - 0s 0 0 1147.07152 0 104 1167.00000 1147.07152 1.71% - 0s 0 0 1147.10020 0 109 1167.00000 1147.10020 1.71% - 0s 0 0 1147.11084 0 110 1167.00000 1147.11084 1.70% - 0s 0 0 1147.12043 0 112 1167.00000 1147.12043 1.70% - 0s 0 2 1147.12143 0 112 1167.00000 1147.12143 1.70% - 1s * 81 77 47 1165.0000000 1147.46173 1.51% 23.9 1s * 498 371 47 1163.0000000 1148.11246 1.28% 18.5 1s * 826 501 45 1162.0000000 1148.87178 1.13% 19.8 3s * 1055 506 33 1160.0000000 1150.40255 0.83% 19.7 3s * 1109 442 32 1158.0000000 1150.46434 0.65% 19.4 3s 1216 469 1155.42257 25 107 1158.00000 1150.95645 0.61% 19.1 5s * 2415 500 37 1157.0000000 1152.42408 0.40% 19.0 7s Cutting planes: Gomory: 2 MIR: 1 Zero half: 14 Explored 4604 nodes (78659 simplex iterations) in 9.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.157000000000e+03, best bound 1.157000000000e+03, gap 0.0% adding cut for [(19, 25), (19, 51), (21, 38), (21, 71), (22, 48), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 73), (37, 38), (37, 48), (42, 43), (42, 57), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70), (70, 72)] adding cut for [(36, 54), (6, 16), (6, 30), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55)] adding cut for [(60, 67), (12, 67), (15, 60)] adding cut for [(11, 66), (11, 39), (39, 66)] Optimize a model with 318 rows, 2850 columns and 29351 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.03s Presolved: 317 rows, 2850 columns, 29296 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145760e+03, 298 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.76020 0 88 2864.00000 1145.76020 60.0% - 0s Another try with MIP start H 0 0 1165.0000000 1145.76020 1.65% - 0s H 0 0 1162.0000000 1145.76020 1.40% - 0s 0 0 1147.30862 0 90 1162.00000 1147.30862 1.26% - 0s 0 0 1147.30862 0 88 1162.00000 1147.30862 1.26% - 0s 0 0 1147.30862 0 90 1162.00000 1147.30862 1.26% - 0s 0 0 1147.55744 0 95 1162.00000 1147.55744 1.24% - 0s 0 0 1147.65498 0 98 1162.00000 1147.65498 1.23% - 0s 0 0 1147.73507 0 102 1162.00000 1147.73507 1.23% - 0s 0 0 1147.76243 0 102 1162.00000 1147.76243 1.23% - 0s 0 0 1147.85262 0 101 1162.00000 1147.85262 1.22% - 0s 0 0 1147.91240 0 97 1162.00000 1147.91240 1.21% - 0s 0 0 1147.92975 0 102 1162.00000 1147.92975 1.21% - 0s 0 0 1147.95847 0 100 1162.00000 1147.95847 1.21% - 0s 0 0 1147.98052 0 103 1162.00000 1147.98052 1.21% - 0s 0 0 1147.98268 0 103 1162.00000 1147.98268 1.21% - 0s 0 0 1147.98995 0 104 1162.00000 1147.98995 1.21% - 0s 0 2 1148.03225 0 104 1162.00000 1148.03225 1.20% - 0s * 463 306 32 1161.0000000 1149.58333 0.98% 17.1 1s * 554 292 27 1159.0000000 1150.16932 0.76% 17.0 1s * 639 287 23 1158.0000000 1150.34589 0.66% 16.7 1s 2668 600 1156.61017 29 67 1158.00000 1153.40925 0.40% 16.9 5s * 2918 542 31 1157.0000000 1153.65702 0.29% 16.8 5s Cutting planes: Gomory: 9 MIR: 2 Zero half: 6 Explored 4410 nodes (68734 simplex iterations) in 6.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.157000000000e+03, best bound 1.157000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (14, 58), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (23, 65), (23, 62), (24, 44), (24, 57), (62, 70)] adding cut for [(19, 51), (19, 25), (33, 45), (34, 64), (4, 45), (10, 33), (10, 26), (17, 64), (17, 50), (51, 56), (25, 50), (26, 56)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 59), (15, 60), (60, 67)] Optimize a model with 321 rows, 2850 columns and 29640 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 320 rows, 2850 columns, 29585 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145760e+03, 294 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.76020 0 87 2864.00000 1145.76020 60.0% - 0s Another try with MIP start H 0 0 1161.0000000 1145.76020 1.31% - 0s 0 0 1147.30862 0 90 1161.00000 1147.30862 1.18% - 0s 0 0 1147.30862 0 88 1161.00000 1147.30862 1.18% - 0s 0 0 1147.30862 0 90 1161.00000 1147.30862 1.18% - 0s 0 0 1147.55744 0 95 1161.00000 1147.55744 1.16% - 0s 0 0 1147.65498 0 98 1161.00000 1147.65498 1.15% - 0s 0 0 1147.73507 0 102 1161.00000 1147.73507 1.14% - 0s 0 0 1147.76243 0 102 1161.00000 1147.76243 1.14% - 0s 0 0 1147.85523 0 100 1161.00000 1147.85523 1.13% - 0s 0 0 1147.92033 0 98 1161.00000 1147.92033 1.13% - 0s 0 2 1147.92387 0 98 1161.00000 1147.92387 1.13% - 1s * 111 66 31 1159.0000000 1149.20433 0.85% 18.5 1s * 485 224 16 1158.0000000 1151.54545 0.56% 17.4 1s 1887 398 cutoff 29 1158.00000 1153.53191 0.39% 16.9 5s Cutting planes: Gomory: 10 MIR: 2 Zero half: 6 Explored 4454 nodes (68011 simplex iterations) in 7.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158000000000e+03, best bound 1.158000000000e+03, gap 0.0% adding cut for [(4, 45), (42, 44), (42, 57), (43, 65), (43, 44), (24, 50), (24, 57), (25, 45), (25, 50), (23, 65), (23, 63)] adding cut for [(6, 38), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(32, 73), (66, 67), (11, 32), (11, 66), (15, 36), (15, 60), (60, 67)] adding cut for [(33, 51), (10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(22, 49), (22, 62), (29, 75), (29, 62)] Optimize a model with 326 rows, 2850 columns and 29801 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 324 rows, 2850 columns, 29740 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145760e+03, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.76020 0 88 2864.00000 1145.76020 60.0% - 0s Another try with MIP start H 0 0 1168.0000000 1145.76020 1.90% - 0s H 0 0 1162.0000000 1145.76020 1.40% - 0s 0 0 1147.30325 0 90 1162.00000 1147.30325 1.26% - 0s 0 0 1147.30325 0 88 1162.00000 1147.30325 1.26% - 0s 0 0 1147.30862 0 90 1162.00000 1147.30862 1.26% - 0s 0 0 1147.56632 0 93 1162.00000 1147.56632 1.24% - 0s 0 0 1147.64387 0 100 1162.00000 1147.64387 1.24% - 0s 0 0 1147.68984 0 100 1162.00000 1147.68984 1.23% - 0s 0 0 1147.71513 0 100 1162.00000 1147.71513 1.23% - 0s 0 0 1147.74119 0 99 1162.00000 1147.74119 1.23% - 0s 0 0 1147.78069 0 104 1162.00000 1147.78069 1.22% - 0s 0 0 1147.85003 0 103 1162.00000 1147.85003 1.22% - 0s 0 0 1147.86378 0 104 1162.00000 1147.86378 1.22% - 0s 0 0 1147.86460 0 105 1162.00000 1147.86460 1.22% - 0s 0 0 1147.89795 0 100 1162.00000 1147.89795 1.21% - 0s 0 0 1147.90532 0 105 1162.00000 1147.90532 1.21% - 0s 0 0 1147.91282 0 104 1162.00000 1147.91282 1.21% - 0s 0 0 1147.91691 0 106 1162.00000 1147.91691 1.21% - 0s 0 2 1147.91893 0 106 1162.00000 1147.91893 1.21% - 0s * 151 136 42 1161.0000000 1148.60859 1.07% 18.4 1s * 335 204 35 1159.0000000 1148.67466 0.89% 18.6 1s * 923 402 22 1158.0000000 1151.40833 0.57% 20.1 3s 2049 530 1154.32039 21 90 1158.00000 1153.34091 0.40% 17.5 5s 6013 157 cutoff 26 1158.00000 1156.29592 0.15% 14.9 10s Cutting planes: Gomory: 11 MIR: 3 Zero half: 33 Explored 6216 nodes (91449 simplex iterations) in 10.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158000000000e+03, best bound 1.158000000000e+03, gap 0.0% adding cut for [(33, 51), (37, 72), (37, 70), (42, 43), (42, 57), (43, 65), (16, 38), (16, 58), (19, 25), (19, 51), (25, 50), (21, 38), (21, 71), (23, 65), (23, 62), (24, 50), (24, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (36, 54), (11, 66), (11, 39), (12, 39), (15, 54), (15, 60), (60, 67)] Optimize a model with 328 rows, 2850 columns and 30047 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 326 rows, 2850 columns, 29986 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145807e+03, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.80708 0 93 2864.00000 1145.80708 60.0% - 0s Another try with MIP start H 0 0 1172.0000000 1145.80708 2.23% - 0s H 0 0 1166.0000000 1145.80708 1.73% - 0s 0 0 1146.74467 0 87 1166.00000 1146.74467 1.65% - 0s 0 0 1146.74467 0 93 1166.00000 1146.74467 1.65% - 0s 0 0 1146.75383 0 87 1166.00000 1146.75383 1.65% - 0s 0 0 1147.14240 0 92 1166.00000 1147.14240 1.62% - 0s 0 0 1147.42426 0 98 1166.00000 1147.42426 1.59% - 0s 0 0 1147.46249 0 100 1166.00000 1147.46249 1.59% - 0s 0 0 1147.56550 0 98 1166.00000 1147.56550 1.58% - 0s 0 0 1147.60126 0 104 1166.00000 1147.60126 1.58% - 0s 0 0 1147.66124 0 103 1166.00000 1147.66124 1.57% - 0s 0 0 1147.67795 0 106 1166.00000 1147.67795 1.57% - 0s 0 0 1147.68691 0 106 1166.00000 1147.68691 1.57% - 0s 0 0 1147.69810 0 106 1166.00000 1147.69810 1.57% - 1s 0 2 1147.70374 0 106 1166.00000 1147.70374 1.57% - 1s * 311 246 57 1164.0000000 1147.86898 1.39% 18.2 1s * 312 219 58 1163.0000000 1147.86898 1.30% 18.2 1s H 703 441 1159.0000000 1148.43131 0.91% 19.7 3s 812 480 1152.01840 18 107 1159.00000 1149.94697 0.78% 20.0 5s * 1625 533 44 1158.0000000 1152.33696 0.49% 20.1 6s Cutting planes: Gomory: 3 MIR: 2 Zero half: 31 Explored 4370 nodes (77130 simplex iterations) in 9.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158000000000e+03, best bound 1.158000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (43, 65), (43, 44), (42, 44), (42, 57), (11, 32), (11, 39), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (29, 62), (62, 65)] adding cut for [(48, 49), (6, 16), (6, 30), (16, 38), (21, 38), (21, 71), (22, 48), (22, 70), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(66, 67), (12, 66), (14, 58), (15, 36), (15, 60), (20, 36), (20, 55), (55, 58), (60, 67)] Optimize a model with 331 rows, 2850 columns and 30323 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 329 rows, 2850 columns, 30262 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.145807e+03, 239 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1145.80708 0 93 2864.00000 1145.80708 60.0% - 0s Another try with MIP start H 0 0 1168.0000000 1145.80708 1.90% - 0s H 0 0 1166.0000000 1145.80708 1.73% - 0s 0 0 1146.77602 0 91 1166.00000 1146.77602 1.65% - 0s 0 0 1146.77602 0 93 1166.00000 1146.77602 1.65% - 0s 0 0 1146.78253 0 90 1166.00000 1146.78253 1.65% - 0s 0 0 1147.34262 0 95 1166.00000 1147.34262 1.60% - 0s 0 0 1147.44196 0 99 1166.00000 1147.44196 1.59% - 0s 0 0 1147.59235 0 99 1166.00000 1147.59235 1.58% - 0s 0 0 1147.65732 0 101 1166.00000 1147.65732 1.57% - 0s 0 0 1147.71652 0 105 1166.00000 1147.71652 1.57% - 0s 0 0 1148.00972 0 101 1166.00000 1148.00972 1.54% - 1s 0 0 1148.02725 0 103 1166.00000 1148.02725 1.54% - 1s 0 0 1148.07783 0 105 1166.00000 1148.07783 1.54% - 1s 0 0 1148.08585 0 107 1166.00000 1148.08585 1.54% - 1s 0 0 1148.09662 0 106 1166.00000 1148.09662 1.54% - 1s 0 0 1148.09754 0 109 1166.00000 1148.09754 1.54% - 1s 0 0 1148.10172 0 108 1166.00000 1148.10172 1.54% - 1s 0 0 1148.10705 0 108 1166.00000 1148.10705 1.53% - 1s 0 2 1148.14167 0 108 1166.00000 1148.14167 1.53% - 1s * 251 170 35 1162.0000000 1149.13906 1.11% 19.5 1s * 347 208 25 1161.0000000 1149.49978 0.99% 19.0 1s * 575 279 22 1160.0000000 1150.17073 0.85% 18.8 1s * 811 362 35 1159.0000000 1150.47282 0.74% 20.0 3s * 1427 359 22 1158.0000000 1152.63895 0.46% 20.9 4s 1746 335 1154.66049 18 67 1158.00000 1153.33333 0.40% 20.7 5s Cutting planes: Gomory: 12 MIR: 1 Zero half: 32 Explored 3800 nodes (69803 simplex iterations) in 7.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.158000000000e+03, best bound 1.158000000000e+03, gap 0.0% adding cut for [(19, 51), (19, 25), (40, 73), (10, 40), (10, 26), (43, 65), (43, 44), (24, 64), (24, 57), (50, 64), (51, 56), (22, 75), (22, 29), (25, 50), (26, 56), (42, 44), (42, 57), (23, 65), (23, 29)] adding cut for [(37, 38), (37, 48), (48, 49), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (62, 70), (62, 63)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 59), (12, 39), (12, 60), (60, 67)] adding cut for [(6, 16), (9, 20), (14, 55), (14, 58), (16, 58), (20, 55)] Optimize a model with 335 rows, 2850 columns and 30617 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 333 rows, 2850 columns, 30556 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 229 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1174.0000000 1147.47622 2.26% - 0s H 0 0 1168.0000000 1147.47622 1.76% - 0s 0 0 1148.84339 0 93 1168.00000 1148.84339 1.64% - 0s 0 0 1148.84339 0 87 1168.00000 1148.84339 1.64% - 0s 0 0 1149.47717 0 95 1168.00000 1149.47717 1.59% - 0s 0 0 1149.57990 0 96 1168.00000 1149.57990 1.58% - 0s 0 0 1149.70659 0 93 1168.00000 1149.70659 1.57% - 0s 0 0 1149.84724 0 100 1168.00000 1149.84724 1.55% - 0s 0 0 1149.92396 0 100 1168.00000 1149.92396 1.55% - 0s 0 0 1150.07507 0 99 1168.00000 1150.07507 1.53% - 0s 0 0 1150.08062 0 103 1168.00000 1150.08062 1.53% - 0s 0 0 1150.10928 0 106 1168.00000 1150.10928 1.53% - 0s 0 0 1150.11951 0 102 1168.00000 1150.11951 1.53% - 0s 0 0 1150.25018 0 105 1168.00000 1150.25018 1.52% - 0s 0 0 1150.29047 0 106 1168.00000 1150.29047 1.52% - 0s 0 0 1150.31256 0 110 1168.00000 1150.31256 1.51% - 0s 0 0 1150.34902 0 105 1168.00000 1150.34902 1.51% - 0s 0 0 1150.37559 0 102 1168.00000 1150.37559 1.51% - 1s 0 0 1150.38414 0 105 1168.00000 1150.38414 1.51% - 1s 0 0 1150.38941 0 105 1168.00000 1150.38941 1.51% - 1s 0 0 1150.38941 0 105 1168.00000 1150.38941 1.51% - 1s 0 2 1150.39263 0 105 1168.00000 1150.39263 1.51% - 1s * 319 231 51 1165.0000000 1151.15642 1.19% 18.9 1s * 510 319 17 1164.0000000 1152.08661 1.02% 18.3 1s H 600 270 1161.0000000 1152.33260 0.75% 18.2 2s * 885 310 33 1159.0000000 1152.40593 0.57% 20.0 3s 1814 363 1157.72148 27 79 1159.00000 1154.54973 0.38% 19.2 5s Cutting planes: Gomory: 6 MIR: 8 Zero half: 26 Explored 3804 nodes (66318 simplex iterations) in 7.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (2, 23), (42, 44), (42, 57), (43, 65), (43, 44), (66, 67), (15, 36), (15, 60), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (60, 67)] adding cut for [(70, 72), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (37, 48), (37, 70)] adding cut for [(22, 75), (22, 62), (29, 62), (29, 63), (63, 74)] Optimize a model with 338 rows, 2850 columns and 30867 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 336 rows, 2850 columns, 30806 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 227 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1147.47622 1.67% - 0s 0 0 1149.01722 0 94 1167.00000 1149.01722 1.54% - 0s 0 0 1149.01722 0 87 1167.00000 1149.01722 1.54% - 0s 0 0 1149.47987 0 95 1167.00000 1149.47987 1.50% - 0s 0 0 1149.75427 0 99 1167.00000 1149.75427 1.48% - 0s 0 0 1150.02048 0 100 1167.00000 1150.02048 1.45% - 0s 0 0 1150.15232 0 104 1167.00000 1150.15232 1.44% - 0s 0 0 1150.18021 0 110 1167.00000 1150.18021 1.44% - 0s 0 0 1150.46931 0 108 1167.00000 1150.46931 1.42% - 0s 0 0 1150.47925 0 109 1167.00000 1150.47925 1.42% - 0s 0 0 1150.48462 0 109 1167.00000 1150.48462 1.42% - 0s 0 2 1150.48476 0 109 1167.00000 1150.48476 1.42% - 0s H 8 8 1166.0000000 1150.84214 1.30% 28.0 0s * 165 141 58 1164.0000000 1151.90110 1.04% 15.9 1s * 836 526 37 1163.0000000 1152.54001 0.90% 20.5 3s H 957 525 1162.0000000 1152.54001 0.81% 20.7 4s * 1008 483 40 1161.0000000 1152.54001 0.73% 21.0 4s 1563 560 1157.64706 21 70 1161.00000 1153.66353 0.63% 20.5 5s * 1809 537 29 1160.0000000 1153.89598 0.53% 20.4 5s * 2356 579 41 1159.0000000 1154.08621 0.42% 20.5 7s Cutting planes: Gomory: 2 MIR: 2 Zero half: 14 Explored 4454 nodes (81022 simplex iterations) in 9.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (12, 67), (12, 54), (17, 64), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(37, 72), (37, 70), (14, 58), (29, 75), (16, 38), (16, 58), (21, 38), (21, 71), (22, 29), (22, 70), (61, 71), (61, 72)] adding cut for [(2, 44), (2, 34), (42, 43), (42, 57), (43, 65), (23, 62), (23, 63), (24, 44), (24, 57), (62, 65), (63, 74)] Optimize a model with 341 rows, 2850 columns and 31089 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 339 rows, 2850 columns, 31028 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 265 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1164.0000000 1147.47622 1.42% - 0s 0 0 1148.80658 0 91 1164.00000 1148.80658 1.31% - 0s 0 0 1148.80658 0 87 1164.00000 1148.80658 1.31% - 0s 0 0 1149.57728 0 91 1164.00000 1149.57728 1.24% - 0s 0 0 1149.70361 0 96 1164.00000 1149.70361 1.23% - 0s 0 0 1149.92426 0 95 1164.00000 1149.92426 1.21% - 0s 0 0 1150.06390 0 101 1164.00000 1150.06390 1.20% - 0s 0 0 1150.12167 0 104 1164.00000 1150.12167 1.19% - 0s 0 0 1150.12627 0 107 1164.00000 1150.12627 1.19% - 0s 0 0 1150.18224 0 104 1164.00000 1150.18224 1.19% - 0s 0 0 1150.22272 0 104 1164.00000 1150.22272 1.18% - 0s 0 0 1150.28657 0 103 1164.00000 1150.28657 1.18% - 0s 0 0 1150.29619 0 105 1164.00000 1150.29619 1.18% - 0s 0 0 1150.33598 0 105 1164.00000 1150.33598 1.17% - 0s 0 0 1150.33982 0 105 1164.00000 1150.33982 1.17% - 0s 0 0 1150.34586 0 106 1164.00000 1150.34586 1.17% - 0s 0 2 1150.34959 0 106 1164.00000 1150.34959 1.17% - 0s * 696 468 54 1163.0000000 1152.02941 0.94% 20.1 2s * 870 495 43 1162.0000000 1152.02941 0.86% 20.9 3s * 978 461 23 1161.0000000 1152.02941 0.77% 21.0 3s 1235 551 1157.13740 38 70 1161.00000 1152.03350 0.77% 21.7 5s H 2134 493 1159.0000000 1154.31373 0.40% 21.4 6s Cutting planes: Gomory: 6 MIR: 5 Zero half: 32 Explored 4054 nodes (78875 simplex iterations) in 9.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (42, 44), (42, 57), (43, 65), (43, 44), (16, 38), (16, 58), (17, 50), (21, 38), (21, 71), (22, 70), (22, 62), (23, 65), (23, 62), (24, 50), (24, 57), (61, 71), (61, 72)] adding cut for [(32, 56), (66, 67), (4, 45), (4, 25), (33, 45), (11, 32), (11, 66), (15, 60), (19, 51), (19, 25), (26, 51), (26, 56), (60, 67)] Optimize a model with 343 rows, 2850 columns and 31370 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 341 rows, 2850 columns, 31309 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 265 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1165.0000000 1147.47622 1.50% - 0s 0 0 1148.77261 0 92 1165.00000 1148.77261 1.39% - 0s 0 0 1148.77261 0 87 1165.00000 1148.77261 1.39% - 0s 0 0 1149.63927 0 95 1165.00000 1149.63927 1.32% - 0s 0 0 1149.72130 0 102 1165.00000 1149.72130 1.31% - 0s 0 0 1149.76970 0 99 1165.00000 1149.76970 1.31% - 0s 0 0 1149.94766 0 104 1165.00000 1149.94766 1.29% - 0s 0 0 1150.05436 0 104 1165.00000 1150.05436 1.28% - 0s 0 0 1150.21348 0 105 1165.00000 1150.21348 1.27% - 0s 0 0 1150.22840 0 107 1165.00000 1150.22840 1.27% - 0s 0 0 1150.26648 0 105 1165.00000 1150.26648 1.26% - 0s 0 0 1150.27024 0 109 1165.00000 1150.27024 1.26% - 0s 0 0 1150.27319 0 112 1165.00000 1150.27319 1.26% - 0s 0 2 1150.27392 0 112 1165.00000 1150.27392 1.26% - 0s * 155 131 36 1163.0000000 1150.31869 1.09% 17.8 1s * 302 204 68 1162.0000000 1150.41773 1.00% 17.3 1s H 600 364 1161.0000000 1151.27319 0.84% 18.3 1s * 1392 481 30 1160.0000000 1153.72596 0.54% 20.4 4s * 1396 375 26 1159.0000000 1153.72596 0.46% 20.4 4s 1912 394 cutoff 21 1159.00000 1154.51282 0.39% 20.0 5s Cutting planes: Gomory: 10 MIR: 7 Zero half: 36 Explored 4247 nodes (76403 simplex iterations) in 8.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(4, 45), (6, 16), (6, 38), (16, 58), (19, 25), (19, 56), (21, 38), (21, 71), (22, 29), (22, 62), (23, 63), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 63), (33, 45), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 70)] adding cut for [(60, 67), (66, 67), (12, 66), (15, 60)] Optimize a model with 345 rows, 2850 columns and 31815 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 343 rows, 2850 columns, 31754 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 249 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1164.0000000 1147.47622 1.42% - 0s 0 0 1149.08969 0 91 1164.00000 1149.08969 1.28% - 0s 0 0 1149.08969 0 87 1164.00000 1149.08969 1.28% - 0s 0 0 1149.73427 0 95 1164.00000 1149.73427 1.23% - 0s 0 0 1149.78099 0 100 1164.00000 1149.78099 1.22% - 0s 0 0 1149.93731 0 103 1164.00000 1149.93731 1.21% - 0s 0 0 1149.93995 0 104 1164.00000 1149.93995 1.21% - 0s 0 0 1149.94539 0 107 1164.00000 1149.94539 1.21% - 0s 0 0 1149.94539 0 107 1164.00000 1149.94539 1.21% - 0s 0 2 1149.94681 0 107 1164.00000 1149.94681 1.21% - 0s H 385 292 1163.0000000 1150.72873 1.06% 17.1 1s H 600 371 1162.0000000 1151.04969 0.94% 16.8 1s * 711 392 55 1161.0000000 1151.83974 0.79% 18.6 3s 1764 573 1154.73727 19 88 1161.00000 1154.72832 0.54% 19.7 5s * 1862 414 19 1159.0000000 1154.84282 0.36% 19.7 5s Cutting planes: Gomory: 3 MIR: 2 Zero half: 15 Explored 3815 nodes (73409 simplex iterations) in 8.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(4, 25), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (14, 58), (16, 58), (16, 38), (22, 70), (22, 62), (24, 50), (24, 57), (25, 50), (61, 71), (61, 72), (23, 65), (23, 62), (21, 71), (21, 38)] adding cut for [(33, 45), (10, 40), (10, 26), (45, 51), (19, 51), (19, 56), (26, 56)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 39), (12, 67), (12, 54)] Optimize a model with 348 rows, 2850 columns and 32074 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 346 rows, 2850 columns, 32013 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 258 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1166.0000000 1147.47622 1.59% - 0s 0 0 1148.87771 0 93 1166.00000 1148.87771 1.47% - 0s 0 0 1148.87771 0 87 1166.00000 1148.87771 1.47% - 0s 0 0 1149.71800 0 96 1166.00000 1149.71800 1.40% - 0s 0 0 1149.94562 0 101 1166.00000 1149.94562 1.38% - 0s 0 0 1149.95447 0 104 1166.00000 1149.95447 1.38% - 0s 0 0 1149.96632 0 107 1166.00000 1149.96632 1.38% - 0s 0 0 1149.96632 0 107 1166.00000 1149.96632 1.38% - 0s 0 2 1149.96727 0 107 1166.00000 1149.96727 1.38% - 0s * 147 130 44 1164.0000000 1150.23945 1.18% 18.7 1s * 810 492 43 1162.0000000 1151.72169 0.88% 19.4 2s * 923 482 38 1161.0000000 1152.55039 0.73% 19.6 3s * 958 408 31 1159.0000000 1152.77501 0.54% 19.8 3s 1246 473 1157.04000 37 69 1159.00000 1153.39676 0.48% 20.7 5s Cutting planes: Gomory: 5 MIR: 1 Zero half: 16 Explored 3539 nodes (64790 simplex iterations) in 8.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (60, 67), (14, 55), (14, 28), (15, 60), (15, 20), (20, 55), (25, 50), (26, 51), (26, 56)] adding cut for [(34, 74), (37, 72), (37, 70), (16, 38), (16, 58), (21, 38), (21, 71), (23, 74), (23, 62), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 44), (42, 65), (42, 57), (43, 65), (43, 44), (17, 64), (24, 64), (24, 57)] adding cut for [(11, 39), (12, 54), (12, 39)] Optimize a model with 352 rows, 2850 columns and 32299 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 350 rows, 2850 columns, 32238 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1165.0000000 1147.47622 1.50% - 0s 0 0 1149.08857 0 91 1165.00000 1149.08857 1.37% - 0s 0 0 1149.08857 0 87 1165.00000 1149.08857 1.37% - 0s 0 0 1149.80737 0 99 1165.00000 1149.80737 1.30% - 0s 0 0 1149.84121 0 102 1165.00000 1149.84121 1.30% - 0s 0 0 1149.94479 0 100 1165.00000 1149.94479 1.29% - 0s 0 0 1150.03234 0 103 1165.00000 1150.03234 1.28% - 0s 0 0 1150.05465 0 102 1165.00000 1150.05465 1.28% - 0s 0 0 1150.09210 0 104 1165.00000 1150.09210 1.28% - 0s 0 0 1150.10285 0 108 1165.00000 1150.10285 1.28% - 0s 0 0 1150.19692 0 107 1165.00000 1150.19692 1.27% - 0s 0 0 1150.34571 0 105 1165.00000 1150.34571 1.26% - 0s 0 0 1150.36281 0 109 1165.00000 1150.36281 1.26% - 0s 0 0 1150.39014 0 107 1165.00000 1150.39014 1.25% - 0s 0 0 1150.42015 0 106 1165.00000 1150.42015 1.25% - 0s 0 0 1150.43381 0 110 1165.00000 1150.43381 1.25% - 0s 0 0 1150.47556 0 107 1165.00000 1150.47556 1.25% - 0s 0 0 1150.48790 0 108 1165.00000 1150.48790 1.25% - 0s 0 0 1150.50308 0 107 1165.00000 1150.50308 1.24% - 0s 0 0 1150.52377 0 106 1165.00000 1150.52377 1.24% - 0s 0 0 1150.55444 0 103 1165.00000 1150.55444 1.24% - 0s 0 0 1150.55988 0 103 1165.00000 1150.55988 1.24% - 0s 0 0 1150.56359 0 108 1165.00000 1150.56359 1.24% - 0s 0 2 1150.56373 0 108 1165.00000 1150.56373 1.24% - 1s * 209 142 37 1162.0000000 1151.17021 0.93% 18.1 1s 831 477 1154.13750 19 88 1162.00000 1153.25142 0.75% 21.9 5s * 1248 447 33 1160.0000000 1154.63452 0.46% 21.7 5s * 1669 265 31 1159.0000000 1155.31868 0.32% 21.8 6s Cutting planes: Gomory: 3 MIR: 1 Zero half: 35 Explored 2619 nodes (53584 simplex iterations) in 7.89 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.159000000000e+03, best bound 1.159000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (14, 55), (14, 58), (16, 38), (16, 58), (20, 36), (20, 55), (21, 38), (21, 71), (22, 49), (22, 70), (61, 71), (61, 72)] adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (34, 64), (40, 73), (10, 40), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 74), (42, 65), (42, 57), (43, 65), (43, 44), (17, 24), (24, 57)] adding cut for [(66, 67), (11, 66), (11, 59), (15, 60), (60, 67)] Optimize a model with 356 rows, 2850 columns and 32521 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 354 rows, 2850 columns, 32460 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 261 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1147.47622 2.09% - 0s H 0 0 1169.0000000 1147.47622 1.84% - 0s 0 0 1148.84190 0 89 1169.00000 1148.84190 1.72% - 0s 0 0 1148.84190 0 87 1169.00000 1148.84190 1.72% - 0s 0 0 1149.77180 0 97 1169.00000 1149.77180 1.64% - 0s 0 0 1149.80510 0 96 1169.00000 1149.80510 1.64% - 0s 0 0 1149.82115 0 101 1169.00000 1149.82115 1.64% - 0s 0 0 1149.88306 0 101 1169.00000 1149.88306 1.64% - 0s 0 0 1149.93411 0 104 1169.00000 1149.93411 1.63% - 0s 0 0 1150.06220 0 108 1169.00000 1150.06220 1.62% - 0s 0 0 1150.17191 0 102 1169.00000 1150.17191 1.61% - 0s 0 0 1150.18030 0 105 1169.00000 1150.18030 1.61% - 0s 0 0 1150.27196 0 101 1169.00000 1150.27196 1.60% - 0s 0 0 1150.30494 0 103 1169.00000 1150.30494 1.60% - 1s 0 0 1150.30894 0 108 1169.00000 1150.30894 1.60% - 1s 0 0 1150.33218 0 104 1169.00000 1150.33218 1.60% - 1s 0 2 1150.34077 0 104 1169.00000 1150.34077 1.60% - 1s * 224 178 56 1167.0000000 1151.50270 1.33% 18.8 1s * 488 342 32 1166.0000000 1152.36832 1.17% 18.6 1s H 600 254 1162.0000000 1152.88203 0.78% 18.4 2s * 675 269 43 1161.0000000 1152.88203 0.70% 19.7 3s 1742 505 1155.48276 20 81 1161.00000 1154.69485 0.54% 20.1 5s * 3680 841 26 1160.0000000 1156.00000 0.34% 18.7 7s 5136 745 1158.83728 21 83 1160.00000 1157.02326 0.26% 18.2 10s Cutting planes: Gomory: 8 MIR: 1 Zero half: 21 Explored 6894 nodes (117773 simplex iterations) in 11.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.160000000000e+03, best bound 1.160000000000e+03, gap 0.0% adding cut for [(70, 72), (42, 43), (42, 57), (43, 65), (48, 49), (17, 64), (21, 38), (21, 71), (23, 65), (23, 62), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70), (37, 38), (37, 48)] adding cut for [(32, 56), (19, 51), (19, 25), (39, 66), (11, 32), (11, 39), (12, 66), (12, 54), (25, 50), (26, 51), (26, 56)] adding cut for [(60, 67), (14, 55), (14, 28), (15, 60), (15, 20), (20, 55)] Optimize a model with 359 rows, 2850 columns and 32761 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 357 rows, 2850 columns, 32700 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147476e+03, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.47622 0 87 2864.00000 1147.47622 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1147.47622 2.09% - 0s H 0 0 1169.0000000 1147.47622 1.84% - 0s 0 0 1148.85117 0 88 1169.00000 1148.85117 1.72% - 0s 0 0 1148.85117 0 87 1169.00000 1148.85117 1.72% - 0s 0 0 1149.70676 0 97 1169.00000 1149.70676 1.65% - 0s 0 0 1149.98606 0 98 1169.00000 1149.98606 1.63% - 0s 0 0 1150.07189 0 100 1169.00000 1150.07189 1.62% - 0s 0 0 1150.22656 0 101 1169.00000 1150.22656 1.61% - 0s 0 0 1150.30667 0 105 1169.00000 1150.30667 1.60% - 0s 0 0 1150.31826 0 105 1169.00000 1150.31826 1.60% - 0s 0 0 1150.32129 0 108 1169.00000 1150.32129 1.60% - 0s 0 0 1150.33976 0 108 1169.00000 1150.33976 1.60% - 0s 0 0 1150.64324 0 103 1169.00000 1150.64324 1.57% - 0s 0 0 1150.67108 0 105 1169.00000 1150.67108 1.57% - 0s 0 0 1150.67170 0 105 1169.00000 1150.67170 1.57% - 0s 0 0 1150.68011 0 108 1169.00000 1150.68011 1.57% - 0s 0 2 1150.68231 0 108 1169.00000 1150.68231 1.57% - 1s * 258 192 50 1165.0000000 1151.66667 1.14% 17.5 1s * 384 263 36 1164.0000000 1151.94199 1.04% 19.2 1s H 702 422 1162.0000000 1152.38801 0.83% 21.4 3s * 804 432 43 1161.0000000 1152.72742 0.71% 22.3 3s 1431 537 cutoff 33 1161.00000 1154.62500 0.55% 21.2 5s 4337 1211 1159.63129 28 80 1161.00000 1156.64350 0.38% 19.2 10s * 4874 1080 28 1160.0000000 1156.82426 0.27% 19.0 10s Cutting planes: Gomory: 6 MIR: 1 Zero half: 49 Explored 7729 nodes (134486 simplex iterations) in 14.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.160000000000e+03, best bound 1.160000000000e+03, gap 0.0% adding cut for [(4, 25), (4, 45), (14, 28), (14, 55), (16, 38), (16, 58), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 50), (33, 45), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (55, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (66, 67), (11, 32), (11, 66), (15, 20), (15, 60), (60, 67)] adding cut for [(10, 40), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(29, 75), (29, 63), (22, 48), (22, 75)] Optimize a model with 363 rows, 2850 columns and 33114 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 361 rows, 2850 columns, 33053 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147924e+03, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.92432 0 84 2864.00000 1147.92432 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.92432 1.72% - 0s H 0 0 1167.0000000 1147.92432 1.63% - 0s 0 0 1149.53548 0 99 1167.00000 1149.53548 1.50% - 0s 0 0 1149.53548 0 84 1167.00000 1149.53548 1.50% - 0s 0 0 1150.11899 0 92 1167.00000 1150.11899 1.45% - 0s 0 0 1150.29760 0 100 1167.00000 1150.29760 1.43% - 0s 0 0 1150.48624 0 103 1167.00000 1150.48624 1.42% - 0s 0 0 1150.71244 0 100 1167.00000 1150.71244 1.40% - 0s 0 0 1150.83755 0 104 1167.00000 1150.83755 1.38% - 0s 0 0 1150.97023 0 105 1167.00000 1150.97023 1.37% - 0s 0 0 1150.98399 0 104 1167.00000 1150.98399 1.37% - 0s 0 0 1150.98450 0 108 1167.00000 1150.98450 1.37% - 0s 0 0 1151.02150 0 109 1167.00000 1151.02150 1.37% - 0s 0 0 1151.12423 0 108 1167.00000 1151.12423 1.36% - 0s 0 0 1151.21118 0 105 1167.00000 1151.21118 1.35% - 0s 0 0 1151.37922 0 102 1167.00000 1151.37922 1.34% - 0s 0 0 1151.46533 0 105 1167.00000 1151.46533 1.33% - 0s 0 0 1151.46888 0 107 1167.00000 1151.46888 1.33% - 0s 0 0 1151.48213 0 105 1167.00000 1151.48213 1.33% - 0s 0 0 1151.48953 0 105 1167.00000 1151.48953 1.33% - 0s 0 0 1151.49776 0 105 1167.00000 1151.49776 1.33% - 0s 0 2 1151.52389 0 105 1167.00000 1151.52389 1.33% - 1s * 263 174 31 1164.0000000 1152.05316 1.03% 18.8 1s * 393 230 24 1163.0000000 1153.25259 0.84% 19.0 1s * 877 408 31 1162.0000000 1153.81093 0.70% 21.9 3s * 1433 431 28 1161.0000000 1154.80998 0.53% 21.1 4s 1648 467 cutoff 31 1161.00000 1155.27570 0.49% 21.3 5s * 1821 394 26 1160.0000000 1155.57083 0.38% 20.9 5s 4299 312 1157.74359 34 75 1160.00000 1156.97727 0.26% 19.6 10s Cutting planes: Gomory: 6 MIR: 1 Zero half: 13 Explored 5256 nodes (98047 simplex iterations) in 11.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.160000000000e+03, best bound 1.160000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (4, 45), (42, 65), (42, 57), (43, 65), (43, 44), (45, 51), (19, 56), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56)] adding cut for [(37, 38), (37, 48), (48, 49), (21, 38), (21, 71), (22, 75), (22, 70), (70, 72), (61, 71), (61, 72)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39), (20, 36), (20, 55), (55, 60), (60, 67)] Optimize a model with 366 rows, 2850 columns and 33334 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.03s Presolved: 364 rows, 2850 columns, 33273 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147924e+03, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.92432 0 84 2864.00000 1147.92432 59.9% - 0s Another try with MIP start H 0 0 1165.0000000 1147.92432 1.47% - 0s 0 0 1149.58686 0 99 1165.00000 1149.58686 1.32% - 0s 0 0 1149.58686 0 84 1165.00000 1149.58686 1.32% - 0s 0 0 1150.26323 0 91 1165.00000 1150.26323 1.26% - 0s 0 0 1150.38287 0 98 1165.00000 1150.38287 1.25% - 0s 0 0 1150.80511 0 101 1165.00000 1150.80511 1.22% - 0s 0 0 1150.89982 0 104 1165.00000 1150.89982 1.21% - 0s 0 0 1150.93716 0 104 1165.00000 1150.93716 1.21% - 0s 0 0 1150.98507 0 111 1165.00000 1150.98507 1.20% - 0s 0 0 1151.01368 0 108 1165.00000 1151.01368 1.20% - 0s 0 0 1151.05292 0 108 1165.00000 1151.05292 1.20% - 0s 0 0 1151.18714 0 105 1165.00000 1151.18714 1.19% - 0s 0 0 1151.30185 0 100 1165.00000 1151.30185 1.18% - 0s 0 0 1151.31625 0 104 1165.00000 1151.31625 1.17% - 0s 0 0 1151.33420 0 106 1165.00000 1151.33420 1.17% - 0s 0 0 1151.33420 0 105 1165.00000 1151.33420 1.17% - 0s 0 2 1151.38784 0 105 1165.00000 1151.38784 1.17% - 0s * 134 105 55 1164.0000000 1152.11096 1.02% 19.1 1s * 171 117 27 1163.0000000 1152.55627 0.90% 19.1 1s * 837 462 33 1162.0000000 1153.98316 0.69% 20.5 3s 1746 589 1159.33360 25 82 1162.00000 1155.39474 0.57% 20.3 5s * 1776 531 33 1161.0000000 1155.39506 0.48% 20.2 5s * 2083 469 34 1160.0000000 1155.77407 0.36% 20.1 5s 4536 347 1157.77320 32 84 1160.00000 1156.80278 0.28% 19.3 10s Cutting planes: Gomory: 4 MIR: 2 Zero half: 9 Mod-K: 1 Explored 5756 nodes (105981 simplex iterations) in 11.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.160000000000e+03, best bound 1.160000000000e+03, gap 0.0% adding cut for [(15, 20), (15, 54), (16, 38), (16, 58), (17, 24), (20, 55), (21, 38), (21, 71), (22, 62), (22, 70), (23, 62), (23, 65), (24, 57), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (55, 58), (61, 71), (61, 72)] adding cut for [(2, 74), (2, 44), (32, 73), (32, 56), (40, 73), (44, 64), (34, 74), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (10, 40)] adding cut for [(66, 67), (39, 66), (11, 39), (12, 60), (60, 67)] Optimize a model with 369 rows, 2850 columns and 33685 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 367 rows, 2850 columns, 33624 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147924e+03, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.92432 0 84 2864.00000 1147.92432 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.92432 1.72% - 0s H 0 0 1167.0000000 1147.92432 1.63% - 0s 0 0 1149.58686 0 99 1167.00000 1149.58686 1.49% - 0s 0 0 1149.58686 0 84 1167.00000 1149.58686 1.49% - 0s 0 0 1150.26323 0 91 1167.00000 1150.26323 1.43% - 0s 0 0 1150.38287 0 98 1167.00000 1150.38287 1.42% - 0s 0 0 1150.74489 0 101 1167.00000 1150.74489 1.39% - 0s 0 0 1150.87462 0 105 1167.00000 1150.87462 1.38% - 0s 0 0 1150.93508 0 104 1167.00000 1150.93508 1.38% - 0s 0 0 1151.03932 0 106 1167.00000 1151.03932 1.37% - 0s 0 0 1151.09314 0 107 1167.00000 1151.09314 1.36% - 0s 0 0 1151.10454 0 108 1167.00000 1151.10454 1.36% - 0s 0 0 1151.12030 0 108 1167.00000 1151.12030 1.36% - 0s 0 0 1151.21881 0 107 1167.00000 1151.21881 1.35% - 0s 0 0 1151.24686 0 109 1167.00000 1151.24686 1.35% - 0s 0 0 1151.31151 0 104 1167.00000 1151.31151 1.34% - 0s 0 0 1151.34167 0 107 1167.00000 1151.34167 1.34% - 0s 0 0 1151.35523 0 104 1167.00000 1151.35523 1.34% - 0s 0 0 1151.36042 0 108 1167.00000 1151.36042 1.34% - 0s 0 2 1151.36415 0 108 1167.00000 1151.36415 1.34% - 0s * 235 165 39 1164.0000000 1152.01513 1.03% 16.9 1s * 537 338 48 1163.0000000 1152.83299 0.87% 17.7 1s * 976 509 46 1162.0000000 1153.22532 0.76% 20.3 3s * 977 461 46 1161.0000000 1153.22532 0.67% 20.2 3s 1591 527 1159.21667 26 75 1161.00000 1154.50000 0.56% 20.0 5s * 4614 802 29 1160.0000000 1157.12727 0.25% 18.3 9s 4677 797 1158.69118 25 73 1160.00000 1157.19048 0.24% 18.3 10s Cutting planes: Gomory: 5 MIR: 5 Zero half: 39 Explored 6037 nodes (103081 simplex iterations) in 11.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.160000000000e+03, best bound 1.160000000000e+03, gap 0.0% adding cut for [(33, 45), (42, 44), (42, 57), (43, 65), (43, 44), (45, 51), (17, 64), (17, 50), (19, 51), (19, 25), (62, 75), (25, 50), (24, 64), (24, 57), (23, 65), (23, 62)] adding cut for [(37, 72), (37, 70), (14, 58), (14, 28), (29, 63), (16, 38), (16, 58), (21, 38), (21, 71), (22, 70), (22, 29), (61, 71), (61, 72)] adding cut for [(32, 56), (66, 67), (39, 66), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (20, 55), (55, 60), (26, 56), (60, 67)] Optimize a model with 372 rows, 2850 columns and 33990 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 370 rows, 2850 columns, 33929 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147924e+03, 254 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.92432 0 84 2864.00000 1147.92432 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.92432 1.72% - 0s H 0 0 1167.0000000 1147.92432 1.63% - 0s 0 0 1149.47252 0 100 1167.00000 1149.47252 1.50% - 0s 0 0 1149.47252 0 84 1167.00000 1149.47252 1.50% - 0s 0 0 1150.26323 0 91 1167.00000 1150.26323 1.43% - 0s 0 0 1150.38287 0 98 1167.00000 1150.38287 1.42% - 0s 0 0 1150.74489 0 101 1167.00000 1150.74489 1.39% - 0s 0 0 1150.87462 0 105 1167.00000 1150.87462 1.38% - 0s 0 0 1150.93508 0 104 1167.00000 1150.93508 1.38% - 0s 0 0 1151.03932 0 106 1167.00000 1151.03932 1.37% - 0s 0 0 1151.08057 0 109 1167.00000 1151.08057 1.36% - 0s 0 0 1151.14256 0 104 1167.00000 1151.14256 1.36% - 0s 0 0 1151.17173 0 109 1167.00000 1151.17173 1.36% - 0s 0 0 1151.30387 0 104 1167.00000 1151.30387 1.34% - 0s 0 0 1151.31023 0 106 1167.00000 1151.31023 1.34% - 0s 0 0 1151.33656 0 107 1167.00000 1151.33656 1.34% - 0s 0 0 1151.34592 0 103 1167.00000 1151.34592 1.34% - 0s 0 0 1151.35564 0 109 1167.00000 1151.35564 1.34% - 0s 0 0 1151.35564 0 109 1167.00000 1151.35564 1.34% - 0s 0 2 1151.35727 0 109 1167.00000 1151.35727 1.34% - 0s * 95 79 61 1165.0000000 1151.46101 1.16% 19.9 1s * 318 194 31 1163.0000000 1152.17467 0.93% 20.5 1s H 600 305 1162.0000000 1152.98019 0.78% 18.9 2s 1619 584 1158.66667 27 49 1162.00000 1155.10017 0.59% 20.4 5s * 2460 883 34 1161.0000000 1155.71318 0.46% 19.6 6s 4512 1252 1159.49049 26 88 1161.00000 1156.99484 0.34% 18.7 10s 7612 1328 1159.20313 24 91 1161.00000 1157.93043 0.26% 17.5 15s Cutting planes: Gomory: 13 MIR: 2 Zero half: 25 Explored 11304 nodes (183014 simplex iterations) in 19.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(15, 20), (15, 60), (16, 38), (16, 58), (17, 50), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (25, 50), (26, 51), (26, 56), (32, 56), (32, 67), (37, 70), (37, 72), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70), (62, 75)] adding cut for [(34, 64), (42, 44), (42, 57), (43, 65), (43, 44), (48, 49), (22, 48), (22, 29), (23, 65), (23, 29), (24, 64), (24, 57)] Optimize a model with 374 rows, 2850 columns and 34344 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 372 rows, 2850 columns, 34283 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147924e+03, 254 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.92432 0 84 2864.00000 1147.92432 59.9% - 0s Another try with MIP start H 0 0 1166.0000000 1147.92432 1.55% - 0s 0 0 1149.47252 0 100 1166.00000 1149.47252 1.42% - 0s 0 0 1149.47252 0 84 1166.00000 1149.47252 1.42% - 0s 0 0 1149.73915 0 100 1166.00000 1149.73915 1.39% - 0s 0 0 1150.20522 0 98 1166.00000 1150.20522 1.35% - 0s 0 0 1150.53561 0 102 1166.00000 1150.53561 1.33% - 0s 0 0 1150.63017 0 106 1166.00000 1150.63017 1.32% - 0s 0 0 1150.71286 0 109 1166.00000 1150.71286 1.31% - 0s 0 0 1151.01291 0 106 1166.00000 1151.01291 1.29% - 0s 0 0 1151.06847 0 100 1166.00000 1151.06847 1.28% - 0s 0 0 1151.11280 0 99 1166.00000 1151.11280 1.28% - 0s 0 2 1151.13650 0 99 1166.00000 1151.13650 1.27% - 1s * 153 91 18 1163.0000000 1153.22222 0.84% 19.5 1s * 214 117 15 1162.0000000 1153.68354 0.72% 20.3 1s * 540 206 17 1161.0000000 1154.69444 0.54% 19.2 1s 1842 358 1157.26257 21 82 1161.00000 1155.99167 0.43% 19.3 5s Cutting planes: Gomory: 5 MIR: 1 Zero half: 10 Explored 5475 nodes (91810 simplex iterations) in 9.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (14, 58), (14, 28), (16, 38), (16, 58), (21, 38), (21, 71), (22, 62), (61, 71), (61, 72), (62, 70)] adding cut for [(19, 51), (19, 25), (33, 45), (4, 45), (10, 33), (10, 26), (17, 50), (51, 56), (25, 50), (26, 56)] adding cut for [(32, 73), (66, 67), (40, 73), (9, 20), (11, 32), (11, 66), (15, 55), (15, 60), (20, 55), (60, 67)] adding cut for [(2, 44), (2, 74), (42, 65), (42, 57), (43, 65), (43, 44), (24, 64), (24, 57)] Optimize a model with 378 rows, 2850 columns and 34568 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 376 rows, 2850 columns, 34507 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147937e+03, 252 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.93709 0 83 2864.00000 1147.93709 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.93709 1.72% - 0s H 0 0 1167.0000000 1147.93709 1.63% - 0s 0 0 1149.48347 0 95 1167.00000 1149.48347 1.50% - 0s 0 0 1149.48347 0 83 1167.00000 1149.48347 1.50% - 0s 0 0 1149.70062 0 95 1167.00000 1149.70062 1.48% - 0s 0 0 1150.60852 0 101 1167.00000 1150.60852 1.40% - 0s 0 0 1150.88249 0 102 1167.00000 1150.88249 1.38% - 0s 0 0 1150.97461 0 102 1167.00000 1150.97461 1.37% - 0s 0 0 1151.00084 0 106 1167.00000 1151.00084 1.37% - 0s 0 0 1151.01349 0 107 1167.00000 1151.01349 1.37% - 0s 0 0 1151.05135 0 105 1167.00000 1151.05135 1.37% - 0s 0 0 1151.06236 0 107 1167.00000 1151.06236 1.37% - 0s 0 0 1151.06872 0 109 1167.00000 1151.06872 1.37% - 0s 0 0 1151.07425 0 108 1167.00000 1151.07425 1.36% - 0s 0 0 1151.08809 0 110 1167.00000 1151.08809 1.36% - 0s 0 0 1151.26173 0 101 1167.00000 1151.26173 1.35% - 0s 0 0 1151.28998 0 102 1167.00000 1151.28998 1.35% - 0s 0 0 1151.39340 0 102 1167.00000 1151.39340 1.34% - 0s 0 0 1151.44170 0 102 1167.00000 1151.44170 1.33% - 0s 0 2 1152.27910 0 102 1167.00000 1152.27910 1.26% - 1s * 60 40 33 1163.0000000 1152.27910 0.92% 27.1 2s * 233 139 28 1161.0000000 1153.85354 0.62% 25.6 3s 665 292 1155.37209 28 88 1161.00000 1155.37209 0.48% 23.4 5s 3975 555 1158.33333 31 77 1161.00000 1157.73138 0.28% 18.9 10s Cutting planes: Gomory: 6 MIR: 1 Zero half: 14 Explored 5925 nodes (105347 simplex iterations) in 12.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(70, 72), (14, 58), (14, 28), (16, 38), (16, 58), (21, 38), (21, 71), (22, 75), (22, 62), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 64), (2, 74), (32, 56), (11, 32), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (23, 65), (23, 29), (24, 57), (29, 63)] adding cut for [(60, 67), (66, 67), (12, 60), (39, 66)] Optimize a model with 382 rows, 2850 columns and 34756 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 380 rows, 2850 columns, 34695 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147937e+03, 236 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.93709 0 83 2864.00000 1147.93709 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.93709 1.72% - 0s H 0 0 1167.0000000 1147.93709 1.63% - 0s 0 0 1149.41681 0 97 1167.00000 1149.41681 1.51% - 0s 0 0 1149.41681 0 83 1167.00000 1149.41681 1.51% - 0s 0 0 1149.80356 0 95 1167.00000 1149.80356 1.47% - 0s 0 0 1150.68414 0 99 1167.00000 1150.68414 1.40% - 0s 0 0 1150.82972 0 102 1167.00000 1150.82972 1.39% - 0s 0 0 1150.99671 0 103 1167.00000 1150.99671 1.37% - 0s 0 0 1151.01904 0 105 1167.00000 1151.01904 1.37% - 0s 0 0 1151.16380 0 103 1167.00000 1151.16380 1.36% - 0s 0 0 1151.26490 0 108 1167.00000 1151.26490 1.35% - 0s 0 0 1151.33145 0 107 1167.00000 1151.33145 1.34% - 0s 0 0 1151.36865 0 108 1167.00000 1151.36865 1.34% - 0s 0 0 1151.43914 0 108 1167.00000 1151.43914 1.33% - 0s 0 0 1151.44129 0 109 1167.00000 1151.44129 1.33% - 0s 0 2 1151.44879 0 109 1167.00000 1151.44879 1.33% - 1s * 385 205 44 1163.0000000 1152.70923 0.88% 17.8 1s * 1256 427 28 1162.0000000 1154.46045 0.65% 20.2 4s 1522 456 1158.50000 19 46 1162.00000 1155.06207 0.60% 19.7 5s H 2068 587 1161.0000000 1155.66667 0.46% 19.4 6s 4478 741 1159.95812 25 64 1161.00000 1157.55970 0.30% 18.4 10s Cutting planes: Gomory: 9 MIR: 6 Zero half: 32 Explored 6682 nodes (116814 simplex iterations) in 13.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (42, 44), (42, 57), (43, 65), (43, 44), (14, 55), (14, 58), (16, 38), (16, 58), (17, 24), (20, 36), (20, 55), (21, 38), (21, 71), (24, 57), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(2, 64), (2, 74), (33, 51), (34, 74), (50, 64), (19, 51), (19, 25), (25, 50)] adding cut for [(32, 56), (40, 73), (10, 40), (10, 26), (11, 32), (11, 39), (12, 39), (26, 56)] adding cut for [(66, 67), (60, 67), (15, 60), (15, 54)] Optimize a model with 386 rows, 2850 columns and 35048 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 384 rows, 2850 columns, 34987 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147937e+03, 238 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.93709 0 83 2864.00000 1147.93709 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1147.93709 1.72% - 0s H 0 0 1167.0000000 1147.93709 1.63% - 0s 0 0 1149.80869 0 99 1167.00000 1149.80869 1.47% - 0s 0 0 1149.80869 0 83 1167.00000 1149.80869 1.47% - 0s 0 0 1150.07488 0 98 1167.00000 1150.07488 1.45% - 0s 0 0 1150.56821 0 103 1167.00000 1150.56821 1.41% - 0s 0 0 1150.78688 0 105 1167.00000 1150.78688 1.39% - 0s 0 0 1150.83731 0 110 1167.00000 1150.83731 1.38% - 0s 0 0 1151.03349 0 101 1167.00000 1151.03349 1.37% - 0s 0 0 1151.40676 0 105 1167.00000 1151.40676 1.34% - 0s 0 0 1151.41159 0 106 1167.00000 1151.41159 1.34% - 0s 0 0 1151.61639 0 104 1167.00000 1151.61639 1.32% - 0s 0 0 1151.63262 0 106 1167.00000 1151.63262 1.32% - 0s 0 0 1151.64252 0 103 1167.00000 1151.64252 1.32% - 0s 0 0 1151.64512 0 103 1167.00000 1151.64512 1.32% - 0s 0 0 1151.65736 0 104 1167.00000 1151.65736 1.31% - 0s 0 0 1151.70573 0 104 1167.00000 1151.70573 1.31% - 0s 0 0 1151.70871 0 108 1167.00000 1151.70871 1.31% - 0s 0 2 1151.73619 0 108 1167.00000 1151.73619 1.31% - 1s * 99 78 25 1163.0000000 1152.43424 0.91% 21.7 1s * 869 432 34 1162.0000000 1153.95011 0.69% 20.4 3s * 1748 496 35 1161.0000000 1155.61117 0.46% 19.6 4s 1933 545 1158.88372 21 76 1161.00000 1155.94988 0.43% 19.5 5s 5471 512 1159.27059 23 81 1161.00000 1158.37732 0.23% 17.7 10s Cutting planes: Gomory: 8 MIR: 5 Zero half: 30 Explored 6482 nodes (110142 simplex iterations) in 11.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (42, 44), (42, 57), (43, 65), (43, 44), (16, 38), (16, 58), (17, 64), (21, 38), (21, 71), (22, 29), (22, 70), (23, 65), (23, 29), (24, 64), (24, 57), (61, 71), (61, 72)] adding cut for [(32, 56), (19, 51), (19, 25), (66, 67), (39, 66), (11, 32), (11, 39), (54, 67), (25, 50), (26, 51), (26, 56)] adding cut for [(12, 60), (14, 28), (14, 55), (15, 20), (15, 60), (20, 55)] Optimize a model with 389 rows, 2850 columns and 35325 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 387 rows, 2850 columns, 35264 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.147989e+03, 260 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1147.98904 0 85 2864.00000 1147.98904 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1147.98904 1.63% - 0s H 0 0 1166.0000000 1147.98904 1.54% - 0s 0 0 1150.73550 0 93 1166.00000 1150.73550 1.31% - 0s 0 0 1150.73550 0 85 1166.00000 1150.73550 1.31% - 0s 0 0 1150.73550 0 93 1166.00000 1150.73550 1.31% - 0s 0 0 1151.01349 0 100 1166.00000 1151.01349 1.29% - 0s 0 0 1151.11897 0 99 1166.00000 1151.11897 1.28% - 0s 0 0 1151.12717 0 101 1166.00000 1151.12717 1.28% - 0s 0 0 1151.18278 0 102 1166.00000 1151.18278 1.27% - 0s 0 0 1151.23201 0 99 1166.00000 1151.23201 1.27% - 0s 0 0 1151.26541 0 101 1166.00000 1151.26541 1.26% - 0s 0 0 1151.28553 0 107 1166.00000 1151.28553 1.26% - 0s 0 0 1151.33171 0 106 1166.00000 1151.33171 1.26% - 0s 0 0 1151.35110 0 108 1166.00000 1151.35110 1.26% - 0s 0 0 1151.44692 0 109 1166.00000 1151.44692 1.25% - 0s 0 2 1152.31292 0 109 1166.00000 1152.31292 1.17% - 1s * 73 44 43 1164.0000000 1152.31292 1.00% 29.6 3s 1097 638 1163.00000 39 48 1164.00000 1155.41053 0.74% 22.0 5s * 1363 724 37 1163.0000000 1155.57302 0.64% 21.2 5s * 2174 914 34 1162.0000000 1156.26636 0.49% 20.6 7s 3079 1065 1159.26117 35 77 1162.00000 1156.42107 0.48% 20.7 10s * 4219 916 40 1161.0000000 1156.65271 0.37% 19.9 11s 6526 420 cutoff 46 1161.00000 1158.63793 0.20% 18.7 15s Cutting planes: Gomory: 3 MIR: 1 Zero half: 15 Explored 7194 nodes (129594 simplex iterations) in 15.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(34, 74), (37, 38), (37, 48), (21, 38), (21, 71), (23, 62), (23, 63), (70, 72), (61, 71), (61, 72), (62, 70), (63, 74)] adding cut for [(32, 67), (32, 56), (66, 67), (39, 66), (17, 50), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (42, 65), (42, 57), (43, 65), (43, 44), (24, 64), (24, 57)] adding cut for [(12, 60), (12, 54), (15, 60), (15, 36)] Optimize a model with 393 rows, 2850 columns and 35496 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 391 rows, 2850 columns, 35435 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148058e+03, 266 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.05809 0 87 2864.00000 1148.05809 59.9% - 0s Another try with MIP start H 0 0 1171.0000000 1148.05809 1.96% - 0s H 0 0 1166.0000000 1148.05809 1.54% - 0s 0 0 1150.23051 0 96 1166.00000 1150.23051 1.35% - 0s 0 0 1150.23051 0 87 1166.00000 1150.23051 1.35% - 0s 0 0 1150.47810 0 99 1166.00000 1150.47810 1.33% - 0s 0 0 1150.71570 0 103 1166.00000 1150.71570 1.31% - 0s 0 0 1150.74034 0 103 1166.00000 1150.74034 1.31% - 0s 0 0 1150.74450 0 106 1166.00000 1150.74450 1.31% - 0s 0 0 1150.77385 0 105 1166.00000 1150.77385 1.31% - 0s 0 0 1150.78361 0 106 1166.00000 1150.78361 1.31% - 0s 0 0 1150.81830 0 101 1166.00000 1150.81830 1.30% - 0s 0 0 1150.84193 0 111 1166.00000 1150.84193 1.30% - 0s 0 0 1150.92390 0 110 1166.00000 1150.92390 1.29% - 1s 0 0 1150.97950 0 111 1166.00000 1150.97950 1.29% - 1s 0 0 1150.97950 0 111 1166.00000 1150.97950 1.29% - 1s 0 2 1150.98210 0 111 1166.00000 1150.98210 1.29% - 1s * 904 482 35 1163.0000000 1153.63179 0.81% 21.0 4s 1451 614 1155.91111 21 83 1163.00000 1155.15385 0.67% 19.8 5s * 1565 551 35 1162.0000000 1155.26764 0.58% 19.6 5s 3682 784 1158.00000 41 68 1162.00000 1156.39846 0.48% 19.2 10s * 4902 947 43 1161.0000000 1157.08260 0.34% 18.3 11s 7531 597 1159.40909 38 73 1161.00000 1158.61111 0.21% 17.2 15s Cutting planes: Gomory: 5 Zero half: 15 Explored 8500 nodes (139575 simplex iterations) in 15.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(32, 56), (4, 45), (4, 25), (33, 45), (11, 32), (11, 39), (12, 66), (19, 51), (19, 25), (26, 51), (26, 56), (39, 66)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (29, 75), (29, 62), (23, 65), (23, 62)] adding cut for [(70, 72), (21, 38), (21, 71), (22, 48), (22, 49), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(6, 16), (6, 30), (14, 55), (14, 58), (16, 58), (20, 36), (20, 55)] adding cut for [(60, 67), (15, 60), (15, 54)] Optimize a model with 398 rows, 2850 columns and 35698 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 396 rows, 2850 columns, 35637 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148058e+03, 244 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.05809 0 88 2864.00000 1148.05809 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.05809 1.62% - 0s 0 0 1150.22988 0 96 1167.00000 1150.22988 1.44% - 0s 0 0 1150.22988 0 88 1167.00000 1150.22988 1.44% - 0s 0 0 1150.42995 0 96 1167.00000 1150.42995 1.42% - 0s 0 0 1150.63850 0 102 1167.00000 1150.63850 1.40% - 0s 0 0 1150.81686 0 101 1167.00000 1150.81686 1.39% - 0s 0 0 1150.85764 0 103 1167.00000 1150.85764 1.38% - 0s 0 0 1150.86513 0 107 1167.00000 1150.86513 1.38% - 0s 0 0 1150.96246 0 101 1167.00000 1150.96246 1.37% - 0s 0 0 1151.04050 0 103 1167.00000 1151.04050 1.37% - 0s 0 0 1151.04130 0 107 1167.00000 1151.04130 1.37% - 0s 0 0 1151.07423 0 107 1167.00000 1151.07423 1.36% - 0s 0 0 1151.11858 0 103 1167.00000 1151.11858 1.36% - 0s 0 0 1151.12722 0 111 1167.00000 1151.12722 1.36% - 0s 0 0 1151.16827 0 107 1167.00000 1151.16827 1.36% - 0s 0 0 1151.16991 0 106 1167.00000 1151.16991 1.36% - 0s 0 0 1151.17662 0 107 1167.00000 1151.17662 1.36% - 0s 0 0 1151.19252 0 109 1167.00000 1151.19252 1.35% - 1s 0 0 1151.23387 0 106 1167.00000 1151.23387 1.35% - 1s 0 0 1151.23422 0 106 1167.00000 1151.23422 1.35% - 1s 0 0 1151.24820 0 109 1167.00000 1151.24820 1.35% - 1s 0 0 1151.24820 0 109 1167.00000 1151.24820 1.35% - 1s 0 2 1151.25870 0 109 1167.00000 1151.25870 1.35% - 1s H 58 58 1166.0000000 1151.37081 1.25% 28.1 1s * 210 160 41 1165.0000000 1151.44021 1.16% 20.4 1s 658 453 1158.11399 26 78 1165.00000 1153.34981 1.00% 21.6 5s * 719 451 57 1164.0000000 1153.34981 0.91% 21.6 5s * 1230 542 34 1163.0000000 1154.77062 0.71% 22.9 6s 3135 1160 cutoff 39 1163.00000 1156.53778 0.56% 20.8 10s * 4304 1419 33 1162.0000000 1157.01882 0.43% 20.2 11s 4683 1529 1160.68000 28 81 1162.00000 1157.09286 0.42% 20.6 15s 7940 1495 1159.05638 31 82 1162.00000 1157.53333 0.38% 19.5 20s *11641 1059 34 1161.0000000 1158.66667 0.20% 18.5 24s 11845 960 1159.14865 35 75 1161.00000 1158.81818 0.19% 18.5 25s Cutting planes: Gomory: 2 MIR: 1 Zero half: 20 Explored 13067 nodes (231830 simplex iterations) in 25.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.161000000000e+03, best bound 1.161000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (42, 44), (42, 57), (43, 65), (43, 44), (16, 38), (16, 58), (17, 24), (21, 38), (21, 71), (24, 57), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(51, 56), (2, 64), (2, 74), (34, 74), (50, 64), (19, 51), (19, 25), (25, 50), (26, 56), (10, 26)] adding cut for [(32, 40), (66, 67), (39, 66), (40, 73), (11, 32), (11, 39), (59, 73)] adding cut for [(12, 54), (12, 60), (14, 55), (15, 20), (15, 60), (20, 55)] Optimize a model with 402 rows, 2850 columns and 35938 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 400 rows, 2850 columns, 35877 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148058e+03, 265 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.05809 0 88 2864.00000 1148.05809 59.9% - 0s Another try with MIP start H 0 0 1164.0000000 1148.05809 1.37% - 0s 0 0 1150.12225 0 97 1164.00000 1150.12225 1.19% - 0s 0 0 1150.12225 0 88 1164.00000 1150.12225 1.19% - 0s 0 0 1150.36849 0 95 1164.00000 1150.36849 1.17% - 0s 0 0 1150.57014 0 99 1164.00000 1150.57014 1.15% - 0s 0 0 1150.61882 0 101 1164.00000 1150.61882 1.15% - 0s 0 0 1150.71910 0 105 1164.00000 1150.71910 1.14% - 0s 0 0 1150.73822 0 107 1164.00000 1150.73822 1.14% - 0s 0 0 1150.84005 0 102 1164.00000 1150.84005 1.13% - 0s 0 0 1150.90441 0 104 1164.00000 1150.90441 1.13% - 0s 0 0 1150.92965 0 106 1164.00000 1150.92965 1.12% - 0s 0 2 1150.93117 0 106 1164.00000 1150.93117 1.12% - 0s * 297 205 29 1163.0000000 1151.43674 0.99% 21.3 1s 680 425 1161.30000 38 67 1163.00000 1152.39197 0.91% 22.0 5s 3284 1299 1161.67129 26 86 1163.00000 1156.68095 0.54% 21.3 10s * 5567 1855 36 1162.0000000 1157.46558 0.39% 20.4 14s 6170 1919 1159.08917 24 83 1162.00000 1157.74028 0.37% 20.3 15s 9291 1887 1159.70330 22 84 1162.00000 1158.74108 0.28% 19.7 20s 13338 823 cutoff 30 1162.00000 1160.03374 0.17% 18.5 25s Cutting planes: Gomory: 2 MIR: 3 Zero half: 39 Explored 14390 nodes (256982 simplex iterations) in 25.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (43, 65), (43, 44), (42, 44), (42, 57), (11, 32), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (23, 65), (23, 29)] adding cut for [(6, 38), (6, 30), (62, 63), (62, 70), (21, 38), (21, 71), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(66, 67), (36, 54), (12, 39), (12, 54), (15, 20), (15, 60), (20, 36), (59, 66), (59, 73), (60, 67)] Optimize a model with 405 rows, 2850 columns and 36168 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 403 rows, 2850 columns, 36107 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148058e+03, 265 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.05809 0 88 2864.00000 1148.05809 59.9% - 0s Another try with MIP start H 0 0 1166.0000000 1148.05809 1.54% - 0s 0 0 1150.12225 0 97 1166.00000 1150.12225 1.36% - 0s 0 0 1150.12225 0 88 1166.00000 1150.12225 1.36% - 0s 0 0 1150.12225 0 98 1166.00000 1150.12225 1.36% - 0s 0 0 1150.45853 0 100 1166.00000 1150.45853 1.33% - 0s 0 0 1150.57026 0 101 1166.00000 1150.57026 1.32% - 0s 0 0 1150.61193 0 103 1166.00000 1150.61193 1.32% - 0s 0 0 1150.68285 0 102 1166.00000 1150.68285 1.31% - 0s 0 0 1150.83288 0 109 1166.00000 1150.83288 1.30% - 0s 0 0 1150.84155 0 109 1166.00000 1150.84155 1.30% - 0s 0 0 1151.11394 0 99 1166.00000 1151.11394 1.28% - 0s 0 0 1151.28824 0 107 1166.00000 1151.28824 1.26% - 0s 0 0 1151.42086 0 103 1166.00000 1151.42086 1.25% - 0s 0 0 1151.46713 0 105 1166.00000 1151.46713 1.25% - 0s 0 0 1151.48538 0 103 1166.00000 1151.48538 1.24% - 0s 0 2 1152.11475 0 103 1166.00000 1152.11475 1.19% - 1s * 160 94 50 1165.0000000 1152.29188 1.09% 26.4 2s * 514 322 43 1164.0000000 1154.83056 0.79% 22.8 3s * 1004 434 28 1162.0000000 1155.59091 0.55% 20.7 4s 1103 462 1159.25000 24 88 1162.00000 1155.69880 0.54% 20.3 5s 3853 815 1159.45455 35 72 1162.00000 1157.58632 0.38% 18.9 10s 7337 622 1160.67634 40 73 1162.00000 1159.43297 0.22% 17.3 15s Cutting planes: Gomory: 8 Zero half: 16 Explored 8546 nodes (142014 simplex iterations) in 16.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% 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 [(37, 72), (37, 70), (62, 70), (29, 62), (29, 63), (21, 38), (21, 71), (61, 71), (61, 72), (30, 38)] adding cut for [(2, 44), (2, 34), (42, 43), (42, 44), (43, 65), (23, 65), (23, 74)] adding cut for [(32, 67), (11, 32), (15, 36), (15, 60), (60, 67)] Optimize a model with 409 rows, 2850 columns and 36344 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 407 rows, 2850 columns, 36283 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.07260 1.62% - 0s 0 0 1150.30284 0 92 1167.00000 1150.30284 1.43% - 0s 0 0 1150.30284 0 93 1167.00000 1150.30284 1.43% - 0s 0 0 1150.30284 0 92 1167.00000 1150.30284 1.43% - 0s 0 0 1150.40394 0 103 1167.00000 1150.40394 1.42% - 0s 0 0 1150.54562 0 98 1167.00000 1150.54562 1.41% - 0s 0 0 1150.84198 0 97 1167.00000 1150.84198 1.38% - 0s 0 0 1151.10643 0 103 1167.00000 1151.10643 1.36% - 0s 0 0 1151.19314 0 106 1167.00000 1151.19314 1.35% - 0s 0 0 1151.22029 0 105 1167.00000 1151.22029 1.35% - 0s 0 0 1151.26346 0 103 1167.00000 1151.26346 1.35% - 0s 0 0 1151.28002 0 107 1167.00000 1151.28002 1.35% - 0s 0 0 1151.53395 0 97 1167.00000 1151.53395 1.33% - 0s 0 0 1151.58686 0 107 1167.00000 1151.58686 1.32% - 0s 0 0 1151.60679 0 111 1167.00000 1151.60679 1.32% - 0s 0 0 1151.61360 0 108 1167.00000 1151.61360 1.32% - 1s 0 0 1151.64426 0 105 1167.00000 1151.64426 1.32% - 1s 0 0 1151.65963 0 105 1167.00000 1151.65963 1.31% - 1s 0 0 1151.66738 0 112 1167.00000 1151.66738 1.31% - 1s 0 0 1151.67365 0 110 1167.00000 1151.67365 1.31% - 1s 0 0 1151.67365 0 111 1167.00000 1151.67365 1.31% - 1s 0 2 1151.67367 0 111 1167.00000 1151.67367 1.31% - 1s * 267 189 52 1166.0000000 1152.29300 1.18% 17.7 1s H 600 296 1163.0000000 1153.34623 0.83% 18.8 2s 1291 436 1156.31395 22 82 1163.00000 1155.40930 0.65% 20.0 5s * 1627 426 30 1162.0000000 1155.96806 0.52% 19.5 5s 4361 765 1158.48485 23 74 1162.00000 1158.18337 0.33% 17.9 10s Cutting planes: Gomory: 11 MIR: 5 Zero half: 30 Explored 7380 nodes (121329 simplex iterations) in 14.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(15, 36), (15, 60), (19, 25), (19, 51), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 67), (42, 44), (42, 57), (43, 44), (43, 65), (49, 75), (50, 64), (60, 67), (62, 75)] adding cut for [(70, 72), (29, 63), (21, 38), (21, 71), (22, 29), (22, 48), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 411 rows, 2850 columns and 36630 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 409 rows, 2850 columns, 36569 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 275 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.06901 0 92 1168.00000 1150.06901 1.54% - 0s 0 0 1150.06901 0 93 1168.00000 1150.06901 1.54% - 0s 0 0 1150.26582 0 95 1168.00000 1150.26582 1.52% - 0s 0 0 1150.71414 0 102 1168.00000 1150.71414 1.48% - 0s 0 0 1150.97899 0 96 1168.00000 1150.97899 1.46% - 0s 0 0 1151.13526 0 110 1168.00000 1151.13526 1.44% - 0s 0 0 1151.18129 0 108 1168.00000 1151.18129 1.44% - 1s 0 0 1151.21749 0 109 1168.00000 1151.21749 1.44% - 1s 0 0 1151.29362 0 112 1168.00000 1151.29362 1.43% - 1s 0 0 1151.31133 0 114 1168.00000 1151.31133 1.43% - 1s 0 0 1151.31698 0 114 1168.00000 1151.31698 1.43% - 1s 0 0 1151.48843 0 106 1168.00000 1151.48843 1.41% - 1s 0 0 1151.51004 0 107 1168.00000 1151.51004 1.41% - 1s 0 0 1151.51475 0 109 1168.00000 1151.51475 1.41% - 1s 0 0 1151.52346 0 107 1168.00000 1151.52346 1.41% - 1s 0 0 1151.55842 0 108 1168.00000 1151.55842 1.41% - 1s 0 0 1151.56103 0 108 1168.00000 1151.56103 1.41% - 1s 0 0 1151.57209 0 106 1168.00000 1151.57209 1.41% - 1s 0 0 1151.57491 0 108 1168.00000 1151.57491 1.41% - 1s 0 2 1151.57491 0 108 1168.00000 1151.57491 1.41% - 1s * 579 300 21 1164.0000000 1153.49843 0.90% 18.1 2s * 589 254 21 1163.0000000 1153.49843 0.82% 17.9 2s 769 344 1160.32500 39 64 1163.00000 1154.32617 0.75% 19.5 5s * 2177 574 29 1162.0000000 1156.28722 0.49% 18.5 7s 3558 828 1159.22034 25 83 1162.00000 1157.39916 0.40% 18.1 10s 6679 533 1159.26133 21 77 1162.00000 1159.23810 0.24% 17.5 15s Cutting planes: Gomory: 12 MIR: 2 Zero half: 36 Explored 7730 nodes (131276 simplex iterations) in 16.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(2, 44), (4, 45), (42, 65), (42, 57), (43, 65), (43, 44), (45, 51), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57)] adding cut for [(32, 56), (66, 67), (40, 73), (10, 40), (10, 26), (11, 32), (11, 66), (12, 67), (12, 54), (26, 56)] adding cut for [(37, 72), (37, 70), (14, 58), (16, 38), (16, 58), (21, 38), (21, 71), (22, 70), (61, 71), (61, 72)] adding cut for [(34, 64), (34, 74), (17, 64), (23, 62), (23, 63), (29, 75), (29, 62), (63, 74)] Optimize a model with 415 rows, 2850 columns and 36854 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 413 rows, 2850 columns, 36793 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 276 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.07260 1.62% - 0s 0 0 1150.28066 0 95 1167.00000 1150.28066 1.43% - 0s 0 0 1150.28066 0 93 1167.00000 1150.28066 1.43% - 0s 0 0 1150.32022 0 93 1167.00000 1150.32022 1.43% - 0s 0 0 1150.42998 0 99 1167.00000 1150.42998 1.42% - 0s 0 0 1150.56048 0 101 1167.00000 1150.56048 1.41% - 0s 0 0 1150.87032 0 101 1167.00000 1150.87032 1.38% - 0s 0 0 1150.96057 0 106 1167.00000 1150.96057 1.37% - 0s 0 0 1151.06062 0 107 1167.00000 1151.06062 1.37% - 0s 0 0 1151.08488 0 110 1167.00000 1151.08488 1.36% - 1s 0 0 1151.08854 0 112 1167.00000 1151.08854 1.36% - 1s 0 0 1151.26234 0 106 1167.00000 1151.26234 1.35% - 1s 0 0 1151.27283 0 110 1167.00000 1151.27283 1.35% - 1s 0 0 1151.28479 0 113 1167.00000 1151.28479 1.35% - 1s 0 0 1151.48706 0 104 1167.00000 1151.48706 1.33% - 1s 0 0 1151.54330 0 109 1167.00000 1151.54330 1.32% - 1s 0 0 1151.55524 0 104 1167.00000 1151.55524 1.32% - 1s 0 0 1151.56020 0 112 1167.00000 1151.56020 1.32% - 1s 0 0 1151.59147 0 107 1167.00000 1151.59147 1.32% - 1s 0 0 1151.59153 0 107 1167.00000 1151.59153 1.32% - 1s 0 0 1151.59537 0 110 1167.00000 1151.59537 1.32% - 1s 0 0 1151.59537 0 110 1167.00000 1151.59537 1.32% - 1s 0 2 1151.61237 0 110 1167.00000 1151.61237 1.32% - 1s * 472 266 30 1164.0000000 1153.30279 0.92% 21.3 2s H 811 386 1163.0000000 1154.12500 0.76% 23.1 4s * 988 374 36 1162.0000000 1154.12500 0.68% 22.8 4s 1210 400 1156.81515 17 78 1162.00000 1154.36096 0.66% 22.6 5s 4105 803 1159.61111 26 74 1162.00000 1158.23994 0.32% 19.1 10s Cutting planes: Gomory: 8 Zero half: 13 Explored 7220 nodes (125663 simplex iterations) in 14.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (14, 55), (14, 58), (16, 38), (16, 58), (49, 75), (20, 36), (20, 55), (21, 38), (21, 71), (61, 71), (61, 72), (62, 75), (62, 70)] adding cut for [(34, 64), (42, 44), (42, 57), (43, 65), (43, 44), (23, 65), (23, 29), (24, 64), (24, 57), (29, 63)] adding cut for [(32, 40), (66, 67), (40, 73), (11, 32), (11, 66), (15, 60), (59, 73), (60, 67)] adding cut for [(51, 56), (10, 26), (17, 50), (19, 51), (19, 25), (25, 50), (26, 56)] Optimize a model with 419 rows, 2850 columns and 37093 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 417 rows, 2850 columns, 37032 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.16786 0 92 1168.00000 1150.16786 1.53% - 0s 0 0 1150.16786 0 93 1168.00000 1150.16786 1.53% - 0s 0 0 1150.35712 0 92 1168.00000 1150.35712 1.51% - 0s 0 0 1150.40571 0 98 1168.00000 1150.40571 1.51% - 0s 0 0 1150.77968 0 97 1168.00000 1150.77968 1.47% - 0s 0 0 1150.93421 0 98 1168.00000 1150.93421 1.46% - 1s 0 0 1150.97861 0 98 1168.00000 1150.97861 1.46% - 1s 0 0 1151.06575 0 104 1168.00000 1151.06575 1.45% - 1s 0 0 1151.14877 0 108 1168.00000 1151.14877 1.44% - 1s 0 0 1151.15188 0 108 1168.00000 1151.15188 1.44% - 1s 0 0 1151.39957 0 100 1168.00000 1151.39957 1.42% - 1s 0 0 1151.40405 0 103 1168.00000 1151.40405 1.42% - 1s 0 0 1151.41777 0 101 1168.00000 1151.41777 1.42% - 1s 0 0 1151.43913 0 106 1168.00000 1151.43913 1.42% - 1s 0 0 1151.55945 0 107 1168.00000 1151.55945 1.41% - 1s 0 0 1151.60911 0 107 1168.00000 1151.60911 1.40% - 1s 0 0 1151.61676 0 110 1168.00000 1151.61676 1.40% - 1s 0 0 1151.61964 0 111 1168.00000 1151.61964 1.40% - 1s 0 0 1151.61964 0 111 1168.00000 1151.61964 1.40% - 1s 0 2 1151.62050 0 111 1168.00000 1151.62050 1.40% - 1s * 590 426 25 1167.0000000 1152.85356 1.21% 19.6 2s * 596 405 28 1166.0000000 1152.85356 1.13% 19.5 2s * 1002 526 52 1163.0000000 1153.71429 0.80% 22.3 4s 1162 555 1160.30863 30 91 1163.00000 1154.48066 0.73% 22.5 5s 4041 1115 1158.39504 26 88 1163.00000 1157.75000 0.45% 19.9 10s * 4549 1032 25 1162.0000000 1158.00000 0.34% 19.6 10s 7300 256 cutoff 29 1162.00000 1160.36957 0.14% 18.1 15s Cutting planes: Gomory: 4 MIR: 7 Zero half: 25 Explored 7585 nodes (134583 simplex iterations) in 15.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(32, 73), (32, 56), (42, 65), (42, 57), (43, 65), (43, 44), (44, 64), (17, 64), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56)] adding cut for [(2, 74), (2, 23), (37, 70), (37, 72), (34, 74), (16, 58), (16, 38), (21, 71), (21, 38), (22, 70), (22, 62), (23, 62), (61, 71), (61, 72)] adding cut for [(12, 54), (12, 60), (15, 20), (15, 60), (20, 36)] adding cut for [(66, 67), (11, 59), (11, 39), (39, 66)] Optimize a model with 423 rows, 2850 columns and 37343 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 421 rows, 2850 columns, 37282 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.33411 0 93 1168.00000 1150.33411 1.51% - 0s 0 0 1150.33411 0 93 1168.00000 1150.33411 1.51% - 0s 0 0 1150.35707 0 93 1168.00000 1150.35707 1.51% - 0s 0 0 1150.42050 0 99 1168.00000 1150.42050 1.51% - 0s 0 0 1150.50918 0 97 1168.00000 1150.50918 1.50% - 0s 0 0 1150.52127 0 99 1168.00000 1150.52127 1.50% - 1s 0 0 1150.89084 0 94 1168.00000 1150.89084 1.46% - 1s 0 0 1151.03668 0 101 1168.00000 1151.03668 1.45% - 1s 0 0 1151.07960 0 106 1168.00000 1151.07960 1.45% - 1s 0 0 1151.10623 0 111 1168.00000 1151.10623 1.45% - 1s 0 0 1151.17444 0 100 1168.00000 1151.17444 1.44% - 1s 0 0 1151.26090 0 107 1168.00000 1151.26090 1.43% - 1s 0 0 1151.56592 0 103 1168.00000 1151.56592 1.41% - 1s 0 0 1151.64760 0 105 1168.00000 1151.64760 1.40% - 1s 0 0 1151.65328 0 107 1168.00000 1151.65328 1.40% - 1s 0 0 1151.67966 0 108 1168.00000 1151.67966 1.40% - 1s 0 0 1151.73247 0 108 1168.00000 1151.73247 1.39% - 1s 0 0 1151.75772 0 108 1168.00000 1151.75772 1.39% - 1s 0 0 1151.79855 0 108 1168.00000 1151.79855 1.39% - 1s 0 0 1151.86351 0 108 1168.00000 1151.86351 1.38% - 1s 0 0 1151.86541 0 110 1168.00000 1151.86541 1.38% - 1s 0 0 1151.87229 0 109 1168.00000 1151.87229 1.38% - 1s 0 0 1151.88046 0 107 1168.00000 1151.88046 1.38% - 1s 0 0 1151.89519 0 106 1168.00000 1151.89519 1.38% - 1s 0 0 1151.89538 0 107 1168.00000 1151.89538 1.38% - 1s 0 0 1151.89538 0 107 1168.00000 1151.89538 1.38% - 1s 0 2 1151.89559 0 107 1168.00000 1151.89559 1.38% - 1s * 157 129 66 1167.0000000 1152.09915 1.28% 20.4 2s H 788 484 1164.0000000 1152.87700 0.96% 21.7 5s * 1783 471 32 1162.0000000 1156.03215 0.51% 21.8 7s 2456 578 1157.68308 31 86 1162.00000 1156.26495 0.49% 22.4 10s 5343 482 1160.25000 33 66 1162.00000 1158.61972 0.29% 20.5 15s Cutting planes: Gomory: 7 MIR: 3 Zero half: 15 Explored 6733 nodes (131515 simplex iterations) in 16.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(37, 70), (37, 48), (42, 44), (42, 57), (43, 65), (43, 44), (17, 50), (62, 70), (25, 50), (24, 25), (24, 57), (23, 65), (23, 62)] adding cut for [(66, 67), (4, 45), (11, 32), (11, 66), (45, 51), (15, 60), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] adding cut for [(6, 38), (6, 30), (14, 55), (14, 58), (16, 21), (16, 58), (20, 36), (20, 55), (21, 38)] adding cut for [(49, 75), (29, 63), (22, 75), (22, 29)] adding cut for [(61, 72), (61, 71), (71, 72)] Optimize a model with 428 rows, 2850 columns and 37558 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 426 rows, 2850 columns, 37497 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 268 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.33427 0 94 1168.00000 1150.33427 1.51% - 0s 0 0 1150.33427 0 93 1168.00000 1150.33427 1.51% - 0s 0 0 1150.33427 0 94 1168.00000 1150.33427 1.51% - 0s 0 0 1150.67983 0 96 1168.00000 1150.67983 1.48% - 0s 0 0 1150.84782 0 99 1168.00000 1150.84782 1.47% - 1s 0 0 1150.88733 0 106 1168.00000 1150.88733 1.47% - 1s 0 0 1151.16070 0 103 1168.00000 1151.16070 1.44% - 1s 0 0 1151.24951 0 102 1168.00000 1151.24951 1.43% - 1s 0 0 1151.28064 0 100 1168.00000 1151.28064 1.43% - 1s 0 0 1151.36274 0 106 1168.00000 1151.36274 1.42% - 1s 0 0 1151.37791 0 110 1168.00000 1151.37791 1.42% - 1s 0 0 1151.47147 0 108 1168.00000 1151.47147 1.42% - 1s 0 0 1151.50686 0 113 1168.00000 1151.50686 1.41% - 1s 0 0 1151.51826 0 108 1168.00000 1151.51826 1.41% - 1s 0 0 1151.61329 0 110 1168.00000 1151.61329 1.40% - 1s 0 0 1151.67649 0 113 1168.00000 1151.67649 1.40% - 1s 0 0 1151.71173 0 104 1168.00000 1151.71173 1.39% - 1s 0 0 1151.77721 0 106 1168.00000 1151.77721 1.39% - 1s 0 0 1151.78038 0 107 1168.00000 1151.78038 1.39% - 1s 0 0 1151.78147 0 109 1168.00000 1151.78147 1.39% - 1s 0 0 1151.78147 0 109 1168.00000 1151.78147 1.39% - 1s 0 2 1151.78291 0 109 1168.00000 1151.78291 1.39% - 1s * 204 162 69 1166.0000000 1152.17568 1.19% 20.6 1s 621 443 1162.50000 58 108 1166.00000 1153.63603 1.06% 19.8 5s * 1999 786 46 1164.0000000 1155.69502 0.71% 21.5 8s 2710 1134 1160.42308 24 82 1164.00000 1156.35336 0.66% 21.0 10s * 3258 1239 47 1163.0000000 1156.71691 0.54% 20.5 10s 5288 1748 1160.84211 26 67 1163.00000 1157.87500 0.44% 19.9 15s 8022 2027 1160.96369 24 82 1163.00000 1158.83558 0.36% 19.3 20s * 9806 1546 56 1162.0000000 1159.29016 0.23% 18.9 23s 11548 663 1161.00000 25 58 1162.00000 1160.32215 0.14% 18.2 25s Cutting planes: Gomory: 4 MIR: 5 Zero half: 40 Explored 12280 nodes (215145 simplex iterations) in 25.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(6, 16), (6, 30), (62, 70), (29, 62), (29, 63), (16, 38), (21, 38), (21, 71), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 39), (12, 39), (50, 64), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 74), (2, 23), (43, 65), (43, 44), (17, 24), (23, 65), (24, 57), (42, 44), (42, 57)] adding cut for [(66, 67), (60, 67), (14, 58), (14, 28), (15, 60), (15, 20), (20, 55), (55, 58)] Optimize a model with 432 rows, 2850 columns and 37772 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 430 rows, 2850 columns, 37711 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.35707 0 93 1169.00000 1150.35707 1.59% - 0s 0 0 1150.35707 0 93 1169.00000 1150.35707 1.59% - 0s 0 0 1150.35712 0 92 1169.00000 1150.35712 1.59% - 0s 0 0 1150.40316 0 99 1169.00000 1150.40316 1.59% - 0s 0 0 1151.00000 0 97 1169.00000 1151.00000 1.54% - 1s 0 0 1151.06400 0 98 1169.00000 1151.06400 1.53% - 1s 0 0 1151.13942 0 101 1169.00000 1151.13942 1.53% - 1s 0 0 1151.43980 0 104 1169.00000 1151.43980 1.50% - 1s 0 0 1151.51744 0 108 1169.00000 1151.51744 1.50% - 1s 0 0 1151.59101 0 106 1169.00000 1151.59101 1.49% - 1s 0 0 1151.65277 0 107 1169.00000 1151.65277 1.48% - 1s 0 0 1151.66443 0 112 1169.00000 1151.66443 1.48% - 1s 0 0 1151.68816 0 113 1169.00000 1151.68816 1.48% - 1s 0 2 1151.68821 0 113 1169.00000 1151.68821 1.48% - 1s 638 477 1155.75675 23 95 1169.00000 1152.67967 1.40% 20.4 5s * 700 480 54 1167.0000000 1152.67967 1.23% 21.3 5s H 983 481 1164.0000000 1153.93810 0.86% 22.7 6s * 1093 434 32 1163.0000000 1154.14886 0.76% 22.6 6s 2105 541 1158.00000 34 63 1163.00000 1156.38235 0.57% 22.8 10s 5238 801 1160.58333 38 68 1163.00000 1159.13242 0.33% 19.8 15s * 6084 558 38 1162.0000000 1159.58108 0.21% 19.3 16s Cutting planes: Gomory: 2 Zero half: 20 Explored 6931 nodes (127632 simplex iterations) in 16.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.162000000000e+03, best bound 1.162000000000e+03, gap 0.0% adding cut for [(10, 40), (10, 26), (43, 65), (43, 44), (48, 49), (24, 50), (24, 57), (19, 56), (19, 25), (22, 75), (22, 48), (25, 50), (26, 56), (42, 44), (42, 57), (23, 65), (23, 63), (63, 75)] adding cut for [(37, 72), (37, 70), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (28, 58), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 73), (39, 66), (11, 32), (11, 39), (12, 66), (12, 54)] adding cut for [(14, 55), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 436 rows, 2850 columns and 38045 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 434 rows, 2850 columns, 37984 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 0s 0 0 1151.06151 0 104 1169.00000 1151.06151 1.53% - 0s 0 0 1151.09419 0 108 1169.00000 1151.09419 1.53% - 1s 0 0 1151.17706 0 105 1169.00000 1151.17706 1.52% - 1s 0 0 1151.18313 0 109 1169.00000 1151.18313 1.52% - 1s 0 0 1151.26114 0 101 1169.00000 1151.26114 1.52% - 1s 0 0 1151.30090 0 107 1169.00000 1151.30090 1.51% - 1s 0 0 1151.34493 0 110 1169.00000 1151.34493 1.51% - 1s 0 0 1151.48832 0 101 1169.00000 1151.48832 1.50% - 1s 0 0 1151.54558 0 103 1169.00000 1151.54558 1.49% - 1s 0 0 1151.57956 0 107 1169.00000 1151.57956 1.49% - 1s 0 0 1151.59052 0 107 1169.00000 1151.59052 1.49% - 1s 0 0 1151.65396 0 102 1169.00000 1151.65396 1.48% - 1s 0 0 1151.67170 0 111 1169.00000 1151.67170 1.48% - 1s 0 0 1151.70741 0 112 1169.00000 1151.70741 1.48% - 1s 0 0 1151.70913 0 111 1169.00000 1151.70913 1.48% - 1s 0 0 1151.77085 0 111 1169.00000 1151.77085 1.47% - 1s 0 0 1151.77132 0 112 1169.00000 1151.77132 1.47% - 1s 0 0 1151.78438 0 111 1169.00000 1151.78438 1.47% - 1s 0 0 1151.78932 0 114 1169.00000 1151.78932 1.47% - 1s 0 2 1151.79139 0 114 1169.00000 1151.79139 1.47% - 1s H 319 260 1168.0000000 1152.28431 1.35% 23.8 2s * 514 384 24 1167.0000000 1152.93373 1.21% 21.6 3s 620 443 1153.11249 15 105 1167.00000 1153.11249 1.19% 21.5 5s * 939 495 43 1166.0000000 1154.46493 0.99% 23.6 5s * 1038 457 52 1164.0000000 1154.58666 0.81% 24.2 6s * 1717 437 26 1163.0000000 1156.04545 0.60% 23.7 7s 1995 510 1156.70896 34 93 1163.00000 1156.39783 0.57% 24.4 10s 4785 812 1160.29878 44 86 1163.00000 1158.67914 0.37% 22.1 15s 7965 548 1161.00762 39 80 1163.00000 1160.34007 0.23% 20.5 20s Cutting planes: Gomory: 4 MIR: 1 Zero half: 17 Explored 8960 nodes (177365 simplex iterations) in 20.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(19, 56), (19, 25), (33, 45), (4, 45), (37, 70), (37, 48), (10, 33), (10, 51), (43, 65), (48, 49), (24, 50), (24, 57), (62, 70), (25, 50), (26, 51), (26, 56), (42, 43), (42, 57), (23, 65), (23, 62)] adding cut for [(32, 73), (66, 67), (39, 66), (11, 32), (11, 39)] adding cut for [(12, 54), (12, 60), (15, 20), (15, 60), (20, 55)] adding cut for [(61, 72), (61, 71), (21, 72), (21, 71)] Optimize a model with 440 rows, 2850 columns and 38291 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 438 rows, 2850 columns, 38230 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 262 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.42152 0 93 1169.00000 1150.42152 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72913 0 104 1169.00000 1150.72913 1.56% - 0s 0 0 1151.14525 0 99 1169.00000 1151.14525 1.53% - 1s 0 0 1151.24373 0 104 1169.00000 1151.24373 1.52% - 1s 0 0 1151.26242 0 107 1169.00000 1151.26242 1.52% - 1s 0 0 1151.29536 0 112 1169.00000 1151.29536 1.51% - 1s 0 0 1151.36316 0 106 1169.00000 1151.36316 1.51% - 1s 0 0 1151.38882 0 112 1169.00000 1151.38882 1.51% - 1s 0 0 1151.42237 0 112 1169.00000 1151.42237 1.50% - 1s 0 0 1151.45705 0 111 1169.00000 1151.45705 1.50% - 1s 0 0 1151.46037 0 113 1169.00000 1151.46037 1.50% - 1s 0 0 1151.46212 0 113 1169.00000 1151.46212 1.50% - 1s 0 2 1151.46655 0 113 1169.00000 1151.46655 1.50% - 1s H 600 436 1167.0000000 1152.43608 1.25% 19.3 2s * 870 477 48 1165.0000000 1153.95239 0.95% 21.1 4s 890 489 1158.07565 25 90 1165.00000 1153.96424 0.95% 21.3 5s * 1158 468 42 1163.0000000 1154.77169 0.71% 21.3 5s 2438 646 1160.41176 32 82 1163.00000 1156.79310 0.53% 21.2 10s 5573 1025 cutoff 44 1163.00000 1159.00000 0.34% 18.6 15s Cutting planes: Gomory: 3 MIR: 1 Zero half: 22 Explored 9211 nodes (157505 simplex iterations) in 19.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(51, 56), (10, 26), (43, 65), (43, 44), (48, 49), (24, 50), (24, 57), (19, 51), (19, 25), (22, 75), (22, 48), (25, 50), (26, 56), (42, 44), (42, 57), (23, 75), (23, 65)] adding cut for [(37, 72), (37, 70), (29, 62), (29, 63), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 40), (66, 67), (11, 32), (11, 66), (15, 20), (15, 60), (20, 36), (60, 67)] Optimize a model with 443 rows, 2850 columns and 38525 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 441 rows, 2850 columns, 38464 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 273 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.07260 1.62% - 0s 0 0 1150.42146 0 97 1167.00000 1150.42146 1.42% - 0s 0 0 1150.42146 0 93 1167.00000 1150.42146 1.42% - 0s 0 0 1150.42146 0 97 1167.00000 1150.42146 1.42% - 0s 0 0 1150.72529 0 101 1167.00000 1150.72529 1.39% - 0s 0 0 1151.00388 0 102 1167.00000 1151.00388 1.37% - 0s 0 0 1151.06492 0 104 1167.00000 1151.06492 1.37% - 1s 0 0 1151.10431 0 107 1167.00000 1151.10431 1.36% - 1s 0 0 1151.23479 0 110 1167.00000 1151.23479 1.35% - 1s 0 0 1151.41546 0 107 1167.00000 1151.41546 1.34% - 1s 0 0 1151.53063 0 106 1167.00000 1151.53063 1.33% - 1s 0 0 1151.55525 0 113 1167.00000 1151.55525 1.32% - 1s 0 0 1151.59627 0 109 1167.00000 1151.59627 1.32% - 1s 0 0 1151.67698 0 114 1167.00000 1151.67698 1.31% - 1s 0 0 1151.73761 0 112 1167.00000 1151.73761 1.31% - 1s 0 2 1151.74164 0 112 1167.00000 1151.74164 1.31% - 1s 729 497 1162.04545 35 76 1167.00000 1153.90851 1.12% 22.2 5s * 817 464 45 1164.0000000 1154.02236 0.86% 22.4 5s * 2593 905 35 1163.0000000 1157.08743 0.51% 21.5 8s 2704 946 1159.05656 27 112 1163.00000 1157.18763 0.50% 21.5 10s 4857 1087 1160.97593 45 88 1163.00000 1157.39978 0.48% 21.4 15s 7968 1305 1161.30000 47 60 1163.00000 1158.81553 0.36% 20.2 20s 11314 1059 1161.03333 43 82 1163.00000 1159.87037 0.27% 19.4 25s Cutting planes: Gomory: 6 MIR: 2 Zero half: 17 Explored 13976 nodes (259244 simplex iterations) in 28.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(43, 65), (43, 44), (37, 72), (37, 70), (42, 44), (42, 57), (23, 65), (23, 62), (14, 55), (14, 28), (16, 38), (16, 58), (21, 38), (21, 71), (55, 58), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (32, 56), (66, 67), (10, 40), (10, 26), (15, 20), (15, 60), (20, 36), (26, 56), (60, 67)] adding cut for [(4, 45), (45, 51), (17, 50), (19, 51), (19, 25), (25, 50)] Optimize a model with 446 rows, 2850 columns and 38811 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 444 rows, 2850 columns, 38750 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 273 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.42146 0 97 1168.00000 1150.42146 1.51% - 0s 0 0 1150.42146 0 93 1168.00000 1150.42146 1.51% - 0s 0 0 1150.42146 0 97 1168.00000 1150.42146 1.51% - 0s 0 0 1150.72529 0 101 1168.00000 1150.72529 1.48% - 0s 0 0 1151.00388 0 102 1168.00000 1151.00388 1.46% - 0s 0 0 1151.06492 0 104 1168.00000 1151.06492 1.45% - 0s 0 0 1151.10431 0 107 1168.00000 1151.10431 1.45% - 0s 0 0 1151.21798 0 103 1168.00000 1151.21798 1.44% - 0s 0 0 1151.24781 0 112 1168.00000 1151.24781 1.43% - 0s 0 0 1151.37787 0 111 1168.00000 1151.37787 1.42% - 0s 0 0 1151.44916 0 109 1168.00000 1151.44916 1.42% - 1s 0 0 1151.47410 0 108 1168.00000 1151.47410 1.41% - 1s 0 0 1151.48560 0 111 1168.00000 1151.48560 1.41% - 1s 0 0 1151.49996 0 117 1168.00000 1151.49996 1.41% - 1s 0 0 1151.53305 0 111 1168.00000 1151.53305 1.41% - 1s 0 0 1151.54917 0 112 1168.00000 1151.54917 1.41% - 1s 0 0 1151.67495 0 113 1168.00000 1151.67495 1.40% - 1s 0 0 1151.78169 0 112 1168.00000 1151.78169 1.39% - 1s 0 0 1151.78619 0 114 1168.00000 1151.78619 1.39% - 1s 0 0 1151.78673 0 114 1168.00000 1151.78673 1.39% - 1s 0 0 1151.78673 0 114 1168.00000 1151.78673 1.39% - 1s 0 2 1151.79072 0 114 1168.00000 1151.79072 1.39% - 1s * 257 214 46 1167.0000000 1152.00922 1.28% 22.9 2s 650 454 1158.36727 32 82 1167.00000 1152.94507 1.20% 22.9 5s * 819 463 64 1165.0000000 1153.03092 1.03% 23.5 5s * 2636 1022 33 1164.0000000 1156.39631 0.65% 21.8 9s 2943 1153 1162.18208 34 82 1164.00000 1156.60306 0.64% 21.7 10s 5464 2003 1162.75000 24 69 1164.00000 1158.24138 0.49% 20.3 15s * 6844 1934 40 1163.0000000 1158.71910 0.37% 19.8 17s 7001 1968 1159.90909 30 97 1163.00000 1158.79233 0.36% 19.8 20s 8939 2118 1159.90000 39 86 1163.00000 1158.79233 0.36% 19.8 25s 12266 1484 1160.15556 43 72 1163.00000 1159.16945 0.33% 19.0 30s 16248 875 1160.81116 40 76 1163.00000 1160.42105 0.22% 18.2 35s Cutting planes: Gomory: 5 MIR: 1 Zero half: 17 Explored 17996 nodes (318638 simplex iterations) in 36.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(37, 38), (37, 48), (42, 44), (42, 57), (43, 65), (43, 44), (21, 38), (21, 71), (23, 65), (23, 63), (24, 64), (24, 57), (70, 72), (61, 71), (61, 72), (62, 70), (62, 63)] adding cut for [(66, 67), (40, 73), (10, 40), (15, 36), (15, 60), (59, 66), (59, 73), (60, 67)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (17, 50), (25, 50), (26, 51), (26, 56)] Optimize a model with 449 rows, 2850 columns and 39036 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 447 rows, 2850 columns, 38975 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 242 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1148.07260 2.04% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.42152 0 93 1169.00000 1150.42152 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 0s 0 0 1151.06515 0 104 1169.00000 1151.06515 1.53% - 0s 0 0 1151.09829 0 107 1169.00000 1151.09829 1.53% - 0s 0 0 1151.17885 0 109 1169.00000 1151.17885 1.52% - 1s 0 0 1151.25303 0 112 1169.00000 1151.25303 1.52% - 1s 0 0 1151.36780 0 110 1169.00000 1151.36780 1.51% - 1s 0 0 1151.38806 0 111 1169.00000 1151.38806 1.51% - 1s 0 0 1151.58915 0 105 1169.00000 1151.58915 1.49% - 1s 0 0 1151.70397 0 106 1169.00000 1151.70397 1.48% - 1s 0 0 1151.71557 0 109 1169.00000 1151.71557 1.48% - 1s 0 0 1151.74813 0 110 1169.00000 1151.74813 1.48% - 1s 0 0 1151.75132 0 113 1169.00000 1151.75132 1.48% - 1s 0 0 1151.78469 0 115 1169.00000 1151.78469 1.47% - 1s 0 0 1151.84157 0 108 1169.00000 1151.84157 1.47% - 1s 0 0 1151.87951 0 108 1169.00000 1151.87951 1.46% - 1s 0 0 1151.91493 0 106 1169.00000 1151.91493 1.46% - 1s 0 0 1151.91843 0 109 1169.00000 1151.91843 1.46% - 1s 0 0 1151.91903 0 112 1169.00000 1151.91903 1.46% - 1s 0 0 1151.91903 0 112 1169.00000 1151.91903 1.46% - 1s 0 2 1151.91938 0 112 1169.00000 1151.91938 1.46% - 1s * 447 214 26 1164.0000000 1152.93283 0.95% 21.1 2s 711 344 1162.51882 29 75 1164.00000 1153.33399 0.92% 22.9 5s * 1823 631 37 1163.0000000 1156.17647 0.59% 21.2 7s 3078 1088 1159.58140 26 69 1163.00000 1157.12377 0.51% 20.6 10s 5763 1563 1159.62500 23 62 1163.00000 1158.71429 0.37% 19.7 15s 8450 1628 1161.01408 27 91 1163.00000 1159.56316 0.30% 18.8 20s 12132 584 cutoff 39 1163.00000 1160.95588 0.18% 17.8 25s Cutting planes: Gomory: 4 MIR: 2 Zero half: 50 Explored 12927 nodes (223670 simplex iterations) in 25.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (23, 65), (23, 63), (14, 55), (16, 38), (16, 58), (21, 38), (21, 71), (55, 58), (61, 71), (61, 72), (62, 65), (62, 70)] adding cut for [(32, 66), (32, 56), (66, 67), (4, 45), (4, 50), (15, 20), (15, 60), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(34, 74), (42, 43), (42, 57), (43, 44), (2, 44), (2, 74), (17, 64), (24, 64), (24, 57)] Optimize a model with 452 rows, 2850 columns and 39277 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 450 rows, 2850 columns, 39216 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 279 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07260 1.71% - 0s 0 0 1150.40409 0 93 1168.00000 1150.40409 1.51% - 0s 0 0 1150.40409 0 93 1168.00000 1150.40409 1.51% - 0s 0 0 1150.42146 0 97 1168.00000 1150.42146 1.51% - 0s 0 0 1150.72529 0 101 1168.00000 1150.72529 1.48% - 0s 0 0 1151.00388 0 102 1168.00000 1151.00388 1.46% - 1s 0 0 1151.06515 0 104 1168.00000 1151.06515 1.45% - 1s 0 0 1151.09829 0 107 1168.00000 1151.09829 1.45% - 1s 0 0 1151.17885 0 109 1168.00000 1151.17885 1.44% - 1s 0 0 1151.25303 0 112 1168.00000 1151.25303 1.43% - 1s 0 0 1151.36780 0 110 1168.00000 1151.36780 1.42% - 1s 0 0 1151.38797 0 111 1168.00000 1151.38797 1.42% - 1s 0 0 1151.58915 0 105 1168.00000 1151.58915 1.41% - 1s 0 0 1151.70397 0 106 1168.00000 1151.70397 1.40% - 1s 0 0 1151.71481 0 111 1168.00000 1151.71481 1.39% - 1s 0 0 1151.72911 0 111 1168.00000 1151.72911 1.39% - 1s 0 0 1151.72911 0 111 1168.00000 1151.72911 1.39% - 1s 0 2 1151.74653 0 111 1168.00000 1151.74653 1.39% - 1s 791 514 1166.58824 35 58 1168.00000 1154.36822 1.17% 22.1 5s * 913 514 59 1167.0000000 1154.36822 1.08% 21.7 5s * 1069 481 26 1165.0000000 1154.59343 0.89% 21.7 5s * 1383 486 44 1164.0000000 1155.51157 0.73% 21.6 6s H 1463 444 1163.0000000 1155.68758 0.63% 21.7 6s 1955 526 1160.91829 49 79 1163.00000 1155.99252 0.60% 22.5 10s 4367 842 1159.79045 35 80 1163.00000 1158.18004 0.41% 21.4 15s 7196 909 1160.50725 34 94 1163.00000 1159.50043 0.30% 20.3 20s Cutting planes: Gomory: 7 MIR: 1 Zero half: 19 Explored 10086 nodes (192123 simplex iterations) in 24.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(19, 25), (19, 51), (21, 38), (21, 71), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 39), (32, 56), (37, 38), (37, 48), (42, 43), (42, 57), (43, 65), (48, 49), (61, 71), (61, 72), (62, 65), (62, 70), (70, 72)] adding cut for [(66, 67), (40, 73), (10, 40), (11, 66), (11, 59), (12, 67), (12, 54), (59, 73)] Optimize a model with 454 rows, 2850 columns and 39566 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 452 rows, 2850 columns, 39505 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 315 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1173.0000000 1148.07260 2.13% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 1s 0 0 1151.06601 0 104 1169.00000 1151.06601 1.53% - 1s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.21377 0 111 1169.00000 1151.21377 1.52% - 1s 0 0 1151.34741 0 109 1169.00000 1151.34741 1.51% - 1s 0 0 1151.49725 0 112 1169.00000 1151.49725 1.50% - 1s 0 0 1151.53300 0 113 1169.00000 1151.53300 1.49% - 1s 0 0 1151.56620 0 113 1169.00000 1151.56620 1.49% - 1s 0 0 1151.61281 0 110 1169.00000 1151.61281 1.49% - 1s 0 0 1151.64211 0 113 1169.00000 1151.64211 1.48% - 1s 0 0 1151.67728 0 107 1169.00000 1151.67728 1.48% - 1s 0 0 1151.73042 0 111 1169.00000 1151.73042 1.48% - 1s 0 0 1151.76771 0 108 1169.00000 1151.76771 1.47% - 1s 0 0 1151.77880 0 111 1169.00000 1151.77880 1.47% - 1s 0 0 1151.79303 0 110 1169.00000 1151.79303 1.47% - 1s 0 0 1151.79703 0 110 1169.00000 1151.79703 1.47% - 1s 0 0 1151.79703 0 110 1169.00000 1151.79703 1.47% - 1s 0 2 1151.80006 0 110 1169.00000 1151.80006 1.47% - 1s 616 499 1161.00000 46 109 1169.00000 1152.95100 1.37% 19.2 5s * 1024 620 61 1168.0000000 1153.73029 1.22% 22.1 6s * 2234 1034 32 1167.0000000 1155.78521 0.96% 19.7 9s 2765 1342 1165.76190 35 71 1167.00000 1156.29145 0.92% 19.2 10s H 3044 1218 1165.0000000 1156.59783 0.72% 19.3 10s 4199 1593 1160.24865 41 76 1165.00000 1156.75400 0.71% 19.5 15s H 5203 1628 1164.0000000 1157.11111 0.59% 19.1 16s * 6065 1335 44 1163.0000000 1157.83195 0.44% 18.9 18s 7227 1265 cutoff 40 1163.00000 1158.54545 0.38% 18.7 20s 10436 1163 1161.37821 45 76 1163.00000 1159.92459 0.26% 18.0 25s Cutting planes: Gomory: 4 Zero half: 15 Mod-K: 1 Explored 13133 nodes (225424 simplex iterations) in 27.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(10, 26), (19, 25), (19, 51), (21, 38), (21, 71), (24, 50), (24, 57), (25, 50), (26, 56), (37, 38), (37, 48), (42, 44), (42, 57), (43, 44), (43, 65), (51, 56), (61, 71), (61, 72), (62, 65), (62, 70), (70, 72)] adding cut for [(32, 40), (66, 67), (40, 73), (11, 32), (11, 66), (15, 20), (15, 60), (60, 67)] adding cut for [(6, 16), (6, 30), (14, 55), (14, 28), (16, 58), (55, 58)] adding cut for [(22, 75), (22, 49), (23, 29), (23, 63), (29, 75)] Optimize a model with 458 rows, 2850 columns and 39869 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 456 rows, 2850 columns, 39808 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 315 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.07260 1.87% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 0s 0 0 1151.06166 0 104 1169.00000 1151.06166 1.53% - 1s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.20900 0 110 1169.00000 1151.20900 1.52% - 1s 0 0 1151.31936 0 110 1169.00000 1151.31936 1.51% - 1s 0 0 1151.41633 0 107 1169.00000 1151.41633 1.50% - 1s 0 0 1151.53037 0 111 1169.00000 1151.53037 1.49% - 1s 0 0 1151.56050 0 113 1169.00000 1151.56050 1.49% - 1s 0 0 1151.63125 0 114 1169.00000 1151.63125 1.49% - 1s 0 0 1151.68064 0 106 1169.00000 1151.68064 1.48% - 1s 0 0 1151.69972 0 108 1169.00000 1151.69972 1.48% - 1s 0 0 1151.71606 0 111 1169.00000 1151.71606 1.48% - 1s 0 0 1151.80980 0 107 1169.00000 1151.80980 1.47% - 1s 0 0 1151.83166 0 109 1169.00000 1151.83166 1.47% - 1s 0 0 1151.83369 0 113 1169.00000 1151.83369 1.47% - 1s 0 0 1151.83369 0 113 1169.00000 1151.83369 1.47% - 1s 0 2 1151.84038 0 113 1169.00000 1151.84038 1.47% - 1s H 455 322 1167.0000000 1152.45211 1.25% 19.2 2s 613 414 1161.05128 31 106 1167.00000 1152.82450 1.21% 19.1 5s H 658 420 1164.0000000 1152.82450 0.96% 20.7 5s 2753 992 1161.82716 28 71 1164.00000 1157.90000 0.52% 20.0 10s * 3991 1187 31 1163.0000000 1158.64927 0.37% 19.4 12s 4213 1249 cutoff 44 1163.00000 1158.72581 0.37% 19.8 15s 6852 1089 1160.16418 37 80 1163.00000 1158.72581 0.37% 19.9 20s 10120 566 cutoff 38 1163.00000 1160.18750 0.24% 19.1 25s Cutting planes: Gomory: 3 Zero half: 22 Explored 11311 nodes (211435 simplex iterations) in 26.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(40, 73), (10, 40), (10, 26), (43, 65), (24, 50), (24, 57), (19, 56), (19, 25), (25, 50), (26, 56), (59, 73), (42, 43), (42, 57), (23, 65), (23, 63)] adding cut for [(6, 38), (29, 75), (29, 62), (21, 38), (21, 71), (22, 70), (22, 62), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(32, 66), (66, 67), (11, 32), (15, 36), (15, 60), (60, 67)] Optimize a model with 461 rows, 2850 columns and 40076 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 459 rows, 2850 columns, 40015 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 281 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.07260 1.87% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 0s 0 0 1151.06166 0 104 1169.00000 1151.06166 1.53% - 0s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 0s 0 0 1151.19975 0 110 1169.00000 1151.19975 1.52% - 0s 0 0 1151.33358 0 103 1169.00000 1151.33358 1.51% - 1s 0 0 1151.44525 0 112 1169.00000 1151.44525 1.50% - 1s 0 0 1151.49317 0 110 1169.00000 1151.49317 1.50% - 1s 0 0 1151.51194 0 115 1169.00000 1151.51194 1.50% - 1s 0 0 1151.60828 0 112 1169.00000 1151.60828 1.49% - 1s 0 0 1151.65924 0 113 1169.00000 1151.65924 1.48% - 1s 0 0 1151.68054 0 116 1169.00000 1151.68054 1.48% - 1s 0 0 1151.69107 0 116 1169.00000 1151.69107 1.48% - 1s 0 0 1151.69369 0 116 1169.00000 1151.69369 1.48% - 1s 0 0 1151.69369 0 116 1169.00000 1151.69369 1.48% - 1s 0 2 1151.69522 0 116 1169.00000 1151.69522 1.48% - 1s * 791 504 45 1166.0000000 1153.34481 1.09% 21.0 4s 806 504 1156.58920 20 93 1166.00000 1153.91717 1.04% 21.1 5s * 2320 991 41 1165.0000000 1156.05217 0.77% 19.8 8s 2417 1044 1159.16040 42 120 1165.00000 1156.17394 0.76% 19.8 10s 4498 1496 1161.27174 41 81 1165.00000 1156.86354 0.70% 20.2 15s * 4647 1346 48 1164.0000000 1156.99265 0.60% 20.1 15s * 5214 1058 36 1163.0000000 1157.35714 0.49% 20.0 16s 7414 1208 1160.43902 37 83 1163.00000 1158.76861 0.36% 19.5 20s 10436 918 1161.18616 39 91 1163.00000 1160.01090 0.26% 18.7 25s Cutting planes: Gomory: 5 Zero half: 19 Explored 12207 nodes (218754 simplex iterations) in 27.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(12, 54), (12, 67), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (20, 60), (21, 38), (21, 71), (22, 62), (22, 70), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (32, 56), (32, 66), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (55, 58), (61, 71), (61, 72), (62, 65), (66, 67)] Optimize a model with 462 rows, 2850 columns and 40572 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 460 rows, 2850 columns, 40511 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 283 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.07260 1.87% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 0s 0 0 1151.06601 0 104 1169.00000 1151.06601 1.53% - 0s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.20568 0 109 1169.00000 1151.20568 1.52% - 1s 0 0 1151.34314 0 106 1169.00000 1151.34314 1.51% - 1s 0 0 1151.44603 0 112 1169.00000 1151.44603 1.50% - 1s 0 0 1151.49509 0 111 1169.00000 1151.49509 1.50% - 1s 0 0 1151.58183 0 114 1169.00000 1151.58183 1.49% - 1s 0 0 1151.58962 0 115 1169.00000 1151.58962 1.49% - 1s 0 0 1151.59136 0 113 1169.00000 1151.59136 1.49% - 1s 0 0 1151.59846 0 113 1169.00000 1151.59846 1.49% - 1s 0 0 1151.59846 0 113 1169.00000 1151.59846 1.49% - 1s 0 2 1151.60116 0 113 1169.00000 1151.60116 1.49% - 1s H 600 432 1168.0000000 1153.31860 1.26% 19.9 3s 614 442 1161.50000 38 114 1168.00000 1153.31860 1.26% 19.5 5s * 1045 582 63 1167.0000000 1154.35432 1.08% 23.5 6s * 1144 512 30 1165.0000000 1154.48300 0.90% 23.6 6s * 1796 599 30 1164.0000000 1156.05263 0.68% 23.3 7s 2015 666 1159.48651 31 99 1164.00000 1156.21113 0.67% 23.5 10s 4372 1175 1162.20325 42 82 1164.00000 1157.37500 0.57% 21.9 15s * 5591 1375 49 1163.0000000 1158.09093 0.42% 21.3 17s 7195 1493 1160.04511 37 89 1163.00000 1158.83497 0.36% 20.7 20s 10109 1175 1161.63636 30 80 1163.00000 1160.03571 0.25% 19.9 25s Cutting planes: Gomory: 4 MIR: 2 Zero half: 18 Explored 12258 nodes (230642 simplex iterations) in 27.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(15, 60), (19, 25), (19, 51), (21, 38), (21, 71), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 66), (37, 38), (37, 48), (42, 43), (42, 57), (43, 65), (48, 75), (50, 64), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67), (70, 72)] Optimize a model with 463 rows, 2850 columns and 40950 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 461 rows, 2850 columns, 40889 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 281 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42152 0 97 1169.00000 1150.42152 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 1s 0 0 1151.06601 0 104 1169.00000 1151.06601 1.53% - 1s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.20568 0 109 1169.00000 1151.20568 1.52% - 1s 0 0 1151.34314 0 106 1169.00000 1151.34314 1.51% - 1s 0 0 1151.44603 0 112 1169.00000 1151.44603 1.50% - 1s 0 0 1151.49509 0 111 1169.00000 1151.49509 1.50% - 1s 0 0 1151.58183 0 114 1169.00000 1151.58183 1.49% - 1s 0 0 1151.58962 0 115 1169.00000 1151.58962 1.49% - 1s 0 0 1151.59136 0 113 1169.00000 1151.59136 1.49% - 1s 0 0 1151.59846 0 113 1169.00000 1151.59846 1.49% - 1s 0 0 1151.59846 0 113 1169.00000 1151.59846 1.49% - 1s 0 2 1151.60116 0 113 1169.00000 1151.60116 1.49% - 1s 646 491 1159.23059 28 93 1169.00000 1153.30641 1.34% 21.2 5s * 757 519 82 1168.0000000 1153.30641 1.26% 22.0 5s * 845 500 60 1166.0000000 1153.30641 1.09% 22.7 5s * 2467 1038 39 1165.0000000 1156.74074 0.71% 23.0 9s 2538 1064 1159.89256 32 86 1165.00000 1156.81715 0.70% 23.0 10s * 2566 921 31 1164.0000000 1156.81818 0.62% 23.0 10s 3779 1201 1162.62500 42 57 1164.00000 1156.93253 0.61% 23.2 15s 6567 1460 1162.28295 36 78 1164.00000 1158.67188 0.46% 21.2 20s 9521 1918 1161.23052 36 87 1164.00000 1159.57429 0.38% 20.0 25s H11252 1648 1163.0000000 1160.05000 0.25% 19.6 27s 12869 1092 1161.53333 35 66 1163.00000 1160.84615 0.19% 19.1 30s Cutting planes: Gomory: 5 MIR: 1 Zero half: 19 Explored 14279 nodes (260384 simplex iterations) in 31.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.163000000000e+03, best bound 1.163000000000e+03, gap 0.0% adding cut for [(32, 67), (32, 56), (19, 51), (19, 25), (34, 64), (34, 74), (15, 36), (15, 60), (50, 64), (23, 62), (23, 63), (25, 50), (26, 51), (26, 56), (60, 67), (29, 75), (29, 62), (63, 74)] adding cut for [(37, 70), (70, 72), (14, 58), (14, 55), (16, 58), (16, 38), (20, 55), (21, 71), (21, 38), (6, 37), (61, 71), (61, 72)] adding cut for [(2, 44), (42, 65), (42, 57), (43, 65), (43, 44), (17, 24), (24, 57)] Optimize a model with 466 rows, 2850 columns and 41227 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 464 rows, 2850 columns, 41166 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 276 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 0s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 1s 0 0 1151.06166 0 104 1169.00000 1151.06166 1.53% - 1s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.19975 0 110 1169.00000 1151.19975 1.52% - 1s 0 0 1151.33358 0 103 1169.00000 1151.33358 1.51% - 1s 0 0 1151.35762 0 110 1169.00000 1151.35762 1.51% - 1s 0 0 1151.48758 0 114 1169.00000 1151.48758 1.50% - 1s 0 0 1151.53177 0 113 1169.00000 1151.53177 1.49% - 1s 0 0 1151.53590 0 118 1169.00000 1151.53590 1.49% - 1s 0 0 1151.56399 0 118 1169.00000 1151.56399 1.49% - 1s 0 0 1151.57092 0 116 1169.00000 1151.57092 1.49% - 1s 0 0 1151.58963 0 113 1169.00000 1151.58963 1.49% - 1s 0 0 1151.62047 0 112 1169.00000 1151.62047 1.49% - 1s 0 0 1151.63528 0 114 1169.00000 1151.63528 1.49% - 1s 0 0 1151.63790 0 117 1169.00000 1151.63790 1.49% - 1s 0 0 1151.65372 0 118 1169.00000 1151.65372 1.48% - 1s 0 0 1151.65802 0 120 1169.00000 1151.65802 1.48% - 1s 0 0 1151.65940 0 119 1169.00000 1151.65940 1.48% - 1s 0 0 1151.66250 0 122 1169.00000 1151.66250 1.48% - 1s 0 0 1151.66250 0 122 1169.00000 1151.66250 1.48% - 1s 0 2 1151.66270 0 122 1169.00000 1151.66270 1.48% - 1s * 460 367 40 1168.0000000 1152.77278 1.30% 22.2 2s 612 458 1164.65000 48 113 1168.00000 1153.17550 1.27% 21.9 5s * 923 553 39 1167.0000000 1153.54198 1.15% 24.3 6s * 1617 705 42 1166.0000000 1155.52083 0.90% 22.9 7s * 2365 957 33 1165.0000000 1156.59259 0.72% 21.9 9s * 2369 816 33 1164.0000000 1156.59259 0.64% 21.9 9s 2501 869 1159.86976 20 97 1164.00000 1156.70759 0.63% 21.7 10s 4331 1149 1160.26140 29 83 1164.00000 1157.14357 0.59% 21.6 15s 7310 1626 1160.78531 32 80 1164.00000 1158.55970 0.47% 20.7 20s 10300 1927 cutoff 34 1164.00000 1159.37500 0.40% 19.9 25s 14316 2021 1162.50000 35 70 1164.00000 1160.16667 0.33% 19.2 30s 18458 1626 1162.68421 33 70 1164.00000 1160.94231 0.26% 18.5 35s Cutting planes: Gomory: 5 Zero half: 12 Explored 23351 nodes (405982 simplex iterations) in 39.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(2, 44), (11, 32), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 44), (24, 57), (32, 66), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (55, 58), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67)] adding cut for [(34, 64), (33, 45), (45, 51), (17, 64), (17, 50), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] Optimize a model with 468 rows, 2850 columns and 41607 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 466 rows, 2850 columns, 41546 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 275 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.07260 1.87% - 0s H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 93 1169.00000 1150.42146 1.59% - 0s 0 0 1150.42146 0 97 1169.00000 1150.42146 1.59% - 0s 0 0 1150.72529 0 101 1169.00000 1150.72529 1.56% - 1s 0 0 1151.00388 0 102 1169.00000 1151.00388 1.54% - 1s 0 0 1151.06166 0 104 1169.00000 1151.06166 1.53% - 1s 0 0 1151.09837 0 108 1169.00000 1151.09837 1.53% - 1s 0 0 1151.19975 0 110 1169.00000 1151.19975 1.52% - 1s 0 0 1151.33358 0 103 1169.00000 1151.33358 1.51% - 1s 0 0 1151.35762 0 110 1169.00000 1151.35762 1.51% - 1s 0 0 1151.48758 0 114 1169.00000 1151.48758 1.50% - 1s 0 0 1151.53177 0 113 1169.00000 1151.53177 1.49% - 1s 0 0 1151.53590 0 118 1169.00000 1151.53590 1.49% - 1s 0 0 1151.56399 0 118 1169.00000 1151.56399 1.49% - 1s 0 0 1151.57092 0 116 1169.00000 1151.57092 1.49% - 1s 0 0 1151.58963 0 113 1169.00000 1151.58963 1.49% - 1s 0 0 1151.60161 0 113 1169.00000 1151.60161 1.49% - 1s 0 0 1151.62729 0 117 1169.00000 1151.62729 1.49% - 1s 0 0 1151.64657 0 116 1169.00000 1151.64657 1.48% - 1s 0 0 1151.65485 0 117 1169.00000 1151.65485 1.48% - 1s 0 0 1151.67985 0 116 1169.00000 1151.67985 1.48% - 1s 0 0 1151.68305 0 116 1169.00000 1151.68305 1.48% - 1s 0 0 1151.68305 0 115 1169.00000 1151.68305 1.48% - 1s 0 2 1151.68351 0 115 1169.00000 1151.68351 1.48% - 1s 609 467 1164.09524 20 115 1169.00000 1153.46750 1.33% 20.8 5s * 876 512 51 1168.0000000 1154.29439 1.17% 22.4 6s * 944 463 55 1165.0000000 1154.46136 0.90% 22.7 6s 1749 687 1162.58333 53 73 1165.00000 1155.90588 0.78% 22.8 10s * 3056 895 51 1164.0000000 1157.56989 0.55% 21.5 12s 4413 1242 1162.81250 44 68 1164.00000 1158.56939 0.47% 20.5 15s 7515 1642 1162.44737 42 71 1164.00000 1159.79545 0.36% 19.2 20s 10581 1567 1161.78927 44 85 1164.00000 1160.62675 0.29% 18.5 25s Cutting planes: Gomory: 6 MIR: 1 Zero half: 13 Mod-K: 1 Explored 14884 nodes (255527 simplex iterations) in 29.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(19, 56), (19, 25), (33, 45), (33, 51), (4, 45), (49, 75), (42, 43), (42, 57), (43, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (23, 65), (23, 29)] adding cut for [(37, 38), (37, 48), (21, 38), (21, 71), (22, 48), (70, 72), (61, 71), (61, 72), (62, 70), (62, 63)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 39), (12, 67)] Optimize a model with 471 rows, 2850 columns and 41830 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 469 rows, 2850 columns, 41769 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 254 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07260 0 93 2864.00000 1148.07260 59.9% - 0s Another try with MIP start H 0 0 1169.0000000 1148.07260 1.79% - 0s 0 0 1150.40409 0 93 1169.00000 1150.40409 1.59% - 0s 0 0 1150.40409 0 93 1169.00000 1150.40409 1.59% - 0s 0 0 1150.40409 0 93 1169.00000 1150.40409 1.59% - 0s 0 0 1150.52345 0 109 1169.00000 1150.52345 1.58% - 0s 0 0 1151.07520 0 102 1169.00000 1151.07520 1.53% - 1s 0 0 1151.28073 0 103 1169.00000 1151.28073 1.52% - 1s 0 0 1151.43473 0 103 1169.00000 1151.43473 1.50% - 1s 0 0 1151.55829 0 98 1169.00000 1151.55829 1.49% - 1s 0 0 1151.57191 0 103 1169.00000 1151.57191 1.49% - 1s 0 0 1151.69440 0 110 1169.00000 1151.69440 1.48% - 1s 0 0 1151.79764 0 110 1169.00000 1151.79764 1.47% - 1s 0 0 1151.79764 0 110 1169.00000 1151.79764 1.47% - 1s 0 2 1151.81954 0 110 1169.00000 1151.81954 1.47% - 1s * 230 160 30 1167.0000000 1153.48831 1.16% 21.7 1s 851 446 1156.90000 18 83 1167.00000 1154.23905 1.09% 23.9 5s * 904 435 46 1166.0000000 1154.23905 1.01% 24.0 5s * 1585 558 30 1165.0000000 1155.79310 0.79% 22.7 6s * 2770 926 27 1164.0000000 1157.38571 0.57% 21.3 9s 3434 1132 1162.51429 32 66 1164.00000 1157.92965 0.52% 21.0 10s 6596 1694 1162.24444 26 67 1164.00000 1159.24000 0.41% 19.7 15s 9712 1833 cutoff 30 1164.00000 1160.12000 0.33% 18.9 20s 13700 1412 1162.31250 24 75 1164.00000 1161.06015 0.25% 18.1 25s Cutting planes: Gomory: 4 Zero half: 18 Explored 16772 nodes (288483 simplex iterations) in 28.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(6, 38), (21, 38), (21, 71), (22, 48), (22, 62), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (23, 65), (23, 29), (24, 57), (29, 75)] adding cut for [(4, 45), (4, 50), (33, 51), (19, 56), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(32, 73), (66, 67), (40, 73), (10, 40), (11, 32), (11, 66), (15, 60), (60, 67)] adding cut for [(14, 55), (14, 58), (16, 58), (16, 30), (20, 36), (20, 55), (30, 49)] Optimize a model with 476 rows, 2850 columns and 42030 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 474 rows, 2850 columns, 41969 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07349 0 94 2864.00000 1148.07349 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07349 1.71% - 0s 0 0 1150.71405 0 101 1168.00000 1150.71405 1.48% - 0s 0 0 1150.71405 0 94 1168.00000 1150.71405 1.48% - 0s 0 0 1150.72540 0 100 1168.00000 1150.72540 1.48% - 0s 0 0 1150.82516 0 96 1168.00000 1150.82516 1.47% - 1s 0 0 1151.00445 0 103 1168.00000 1151.00445 1.46% - 1s 0 0 1151.27342 0 100 1168.00000 1151.27342 1.43% - 1s 0 0 1151.37676 0 104 1168.00000 1151.37676 1.42% - 1s 0 0 1151.42902 0 104 1168.00000 1151.42902 1.42% - 1s 0 0 1151.44534 0 109 1168.00000 1151.44534 1.42% - 1s 0 0 1151.45564 0 106 1168.00000 1151.45564 1.42% - 1s 0 0 1151.53301 0 107 1168.00000 1151.53301 1.41% - 1s 0 0 1151.58290 0 108 1168.00000 1151.58290 1.41% - 1s 0 0 1151.63865 0 107 1168.00000 1151.63865 1.40% - 1s 0 0 1151.69830 0 107 1168.00000 1151.69830 1.40% - 1s 0 0 1151.71987 0 112 1168.00000 1151.71987 1.39% - 1s 0 0 1151.74478 0 113 1168.00000 1151.74478 1.39% - 1s 0 0 1151.74763 0 107 1168.00000 1151.74763 1.39% - 1s 0 0 1151.78974 0 112 1168.00000 1151.78974 1.39% - 1s 0 0 1151.79977 0 112 1168.00000 1151.79977 1.39% - 1s 0 0 1151.81286 0 114 1168.00000 1151.81286 1.39% - 1s 0 2 1151.82068 0 114 1168.00000 1151.82068 1.39% - 1s 650 494 1158.68470 32 90 1168.00000 1153.05305 1.28% 20.6 5s * 714 482 64 1167.0000000 1153.05305 1.20% 20.8 5s * 1216 532 39 1164.0000000 1155.00094 0.77% 22.8 6s 2065 688 1158.38220 38 89 1164.00000 1156.42952 0.65% 23.3 10s 4882 1154 1161.57447 41 78 1164.00000 1158.64521 0.46% 21.0 15s 7689 1462 cutoff 45 1164.00000 1159.66667 0.37% 19.8 20s 11215 1371 1161.95238 42 77 1164.00000 1160.69170 0.28% 18.6 25s Cutting planes: Gomory: 4 Zero half: 19 Explored 15198 nodes (264835 simplex iterations) in 29.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (29, 62), (30, 38), (21, 71), (21, 38), (23, 65), (23, 29), (24, 44), (24, 57), (62, 70)] adding cut for [(34, 64), (32, 56), (32, 59), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (40, 73), (10, 40), (11, 66), (11, 73), (15, 60), (60, 67)] Optimize a model with 479 rows, 2850 columns and 42274 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 477 rows, 2850 columns, 42213 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07349 0 94 2864.00000 1148.07349 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07349 1.71% - 0s 0 0 1150.70185 0 101 1168.00000 1150.70185 1.48% - 0s 0 0 1150.70185 0 94 1168.00000 1150.70185 1.48% - 0s 0 0 1150.72933 0 101 1168.00000 1150.72933 1.48% - 0s 0 0 1151.02205 0 94 1168.00000 1151.02205 1.45% - 0s 0 0 1151.24385 0 104 1168.00000 1151.24385 1.43% - 1s 0 0 1151.45485 0 100 1168.00000 1151.45485 1.42% - 1s 0 0 1151.47804 0 106 1168.00000 1151.47804 1.41% - 1s 0 0 1151.53548 0 105 1168.00000 1151.53548 1.41% - 1s 0 0 1151.56462 0 107 1168.00000 1151.56462 1.41% - 1s 0 0 1151.59138 0 106 1168.00000 1151.59138 1.40% - 1s 0 0 1151.59707 0 107 1168.00000 1151.59707 1.40% - 1s 0 0 1151.59966 0 107 1168.00000 1151.59966 1.40% - 1s 0 0 1151.59966 0 107 1168.00000 1151.59966 1.40% - 1s 0 2 1151.62657 0 107 1168.00000 1151.62657 1.40% - 1s * 777 497 54 1167.0000000 1153.92339 1.12% 20.4 4s 987 590 1163.84058 28 84 1167.00000 1154.62185 1.06% 21.2 5s H 1017 472 1164.0000000 1154.65517 0.80% 21.1 5s 2463 752 1162.93750 43 63 1164.00000 1156.73600 0.62% 20.3 10s 5638 1565 1160.83028 42 76 1164.00000 1158.70193 0.46% 18.8 15s 8719 1906 1161.09909 40 85 1164.00000 1159.72185 0.37% 17.9 20s 12591 1803 1163.00000 42 76 1164.00000 1160.66019 0.29% 17.1 25s 16536 629 1162.63758 41 76 1164.00000 1161.86345 0.18% 16.4 30s Cutting planes: Gomory: 7 MIR: 3 Zero half: 14 Explored 17418 nodes (280452 simplex iterations) in 30.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(16, 38), (16, 58), (19, 25), (19, 51), (21, 38), (21, 71), (22, 62), (22, 70), (24, 50), (24, 57), (25, 50), (33, 51), (37, 70), (37, 72), (42, 44), (42, 57), (43, 44), (43, 65), (61, 71), (61, 72), (62, 65)] adding cut for [(32, 56), (66, 67), (4, 45), (10, 45), (10, 26), (11, 32), (11, 66), (15, 60), (26, 56), (60, 67)] Optimize a model with 481 rows, 2850 columns and 42560 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 479 rows, 2850 columns, 42499 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07349 0 94 2864.00000 1148.07349 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07349 1.71% - 0s 0 0 1150.70185 0 101 1168.00000 1150.70185 1.48% - 0s 0 0 1150.70185 0 94 1168.00000 1150.70185 1.48% - 0s 0 0 1150.72540 0 100 1168.00000 1150.72540 1.48% - 0s 0 0 1150.80642 0 94 1168.00000 1150.80642 1.47% - 0s 0 0 1151.32732 0 103 1168.00000 1151.32732 1.43% - 1s 0 0 1151.37660 0 102 1168.00000 1151.37660 1.42% - 1s 0 0 1151.37944 0 104 1168.00000 1151.37944 1.42% - 1s 0 0 1151.38955 0 107 1168.00000 1151.38955 1.42% - 1s 0 0 1151.43955 0 108 1168.00000 1151.43955 1.42% - 1s 0 0 1151.54423 0 104 1168.00000 1151.54423 1.41% - 1s 0 0 1151.54821 0 107 1168.00000 1151.54821 1.41% - 1s 0 0 1151.57812 0 106 1168.00000 1151.57812 1.41% - 1s 0 0 1151.58366 0 106 1168.00000 1151.58366 1.41% - 1s 0 0 1151.64810 0 107 1168.00000 1151.64810 1.40% - 1s 0 0 1151.67687 0 109 1168.00000 1151.67687 1.40% - 1s 0 0 1151.71895 0 109 1168.00000 1151.71895 1.39% - 1s 0 0 1151.72906 0 110 1168.00000 1151.72906 1.39% - 1s 0 0 1151.78313 0 110 1168.00000 1151.78313 1.39% - 1s 0 0 1151.80245 0 107 1168.00000 1151.80245 1.39% - 1s 0 0 1151.86428 0 106 1168.00000 1151.86428 1.38% - 1s 0 0 1151.87452 0 110 1168.00000 1151.87452 1.38% - 1s 0 0 1151.88285 0 116 1168.00000 1151.88285 1.38% - 1s 0 0 1151.88509 0 113 1168.00000 1151.88509 1.38% - 1s 0 0 1151.89436 0 118 1168.00000 1151.89436 1.38% - 1s 0 0 1151.89436 0 118 1168.00000 1151.89436 1.38% - 1s 0 2 1151.89511 0 118 1168.00000 1151.89511 1.38% - 1s 632 471 1156.47989 21 88 1168.00000 1153.88405 1.21% 22.3 5s * 900 548 47 1167.0000000 1153.88405 1.12% 24.8 5s * 1016 529 45 1165.0000000 1154.48116 0.90% 25.1 6s * 1736 568 31 1164.0000000 1155.97037 0.69% 24.2 7s 1938 641 1156.37410 39 94 1164.00000 1156.37410 0.66% 24.4 10s 4273 923 1160.58349 42 80 1164.00000 1157.50000 0.56% 22.9 15s 6889 1304 1161.07173 34 83 1164.00000 1159.11904 0.42% 21.8 20s 9798 1422 cutoff 37 1164.00000 1160.07407 0.34% 20.7 25s 13650 907 1162.48035 37 90 1164.00000 1161.21111 0.24% 19.5 30s Cutting planes: Gomory: 7 Zero half: 18 Explored 15700 nodes (295627 simplex iterations) in 32.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(19, 51), (19, 56), (2, 64), (2, 74), (4, 45), (4, 25), (11, 32), (11, 39), (34, 74), (45, 51), (50, 64), (20, 55), (20, 36), (66, 67), (55, 60), (25, 50), (26, 32), (26, 56), (60, 67), (39, 66)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (48, 49), (17, 24), (30, 49), (22, 48), (22, 62), (23, 65), (23, 62), (24, 57)] adding cut for [(37, 70), (70, 72), (14, 58), (16, 58), (16, 38), (21, 71), (21, 38), (6, 37), (61, 71), (61, 72)] Optimize a model with 484 rows, 2850 columns and 42903 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 482 rows, 2850 columns, 42842 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07349 0 94 2864.00000 1148.07349 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.07349 1.62% - 0s 0 0 1150.70185 0 101 1167.00000 1150.70185 1.40% - 0s 0 0 1150.70185 0 94 1167.00000 1150.70185 1.40% - 0s 0 0 1150.72540 0 100 1167.00000 1150.72540 1.39% - 0s 0 0 1150.80642 0 93 1167.00000 1150.80642 1.39% - 0s 0 0 1151.32732 0 103 1167.00000 1151.32732 1.34% - 1s 0 0 1151.37660 0 102 1167.00000 1151.37660 1.34% - 1s 0 0 1151.37944 0 104 1167.00000 1151.37944 1.34% - 1s 0 0 1151.38955 0 107 1167.00000 1151.38955 1.34% - 1s 0 0 1151.43955 0 108 1167.00000 1151.43955 1.33% - 1s 0 0 1151.54423 0 104 1167.00000 1151.54423 1.32% - 1s 0 0 1151.54821 0 107 1167.00000 1151.54821 1.32% - 1s 0 0 1151.57812 0 106 1167.00000 1151.57812 1.32% - 1s 0 0 1151.58366 0 106 1167.00000 1151.58366 1.32% - 1s 0 0 1151.64810 0 107 1167.00000 1151.64810 1.32% - 1s 0 0 1151.67588 0 112 1167.00000 1151.67588 1.31% - 1s 0 0 1151.67773 0 112 1167.00000 1151.67773 1.31% - 1s 0 0 1151.71824 0 102 1167.00000 1151.71824 1.31% - 1s 0 0 1151.76628 0 105 1167.00000 1151.76628 1.31% - 1s 0 0 1151.76893 0 104 1167.00000 1151.76893 1.31% - 1s 0 0 1151.79350 0 107 1167.00000 1151.79350 1.30% - 1s 0 0 1151.81170 0 107 1167.00000 1151.81170 1.30% - 1s 0 0 1151.81944 0 108 1167.00000 1151.81944 1.30% - 1s 0 2 1151.81944 0 108 1167.00000 1151.81944 1.30% - 1s 615 453 1162.70280 26 111 1167.00000 1153.16201 1.19% 19.5 5s * 2364 1014 40 1166.0000000 1157.14474 0.76% 20.7 8s * 2525 799 29 1164.0000000 1157.25692 0.58% 20.5 9s 2997 932 1160.27954 19 84 1164.00000 1157.57536 0.55% 20.2 10s 5496 1365 1160.89744 25 74 1164.00000 1159.00000 0.43% 19.6 15s 8071 1535 1161.16379 23 83 1164.00000 1159.82243 0.36% 19.1 20s 10852 1426 1162.85638 24 81 1164.00000 1160.57143 0.29% 18.6 25s 14406 459 1162.18750 22 86 1164.00000 1162.05233 0.17% 17.7 30s Cutting planes: Gomory: 7 MIR: 1 Zero half: 38 Explored 14987 nodes (260573 simplex iterations) in 30.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(2, 64), (2, 44), (43, 65), (34, 64), (34, 74), (29, 62), (23, 65), (23, 62), (42, 43), (42, 44), (63, 74)] adding cut for [(6, 38), (6, 16), (16, 58), (21, 38), (21, 71), (22, 75), (22, 70), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (17, 24), (11, 32), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (39, 59), (14, 55), (20, 55), (20, 60), (60, 67)] Optimize a model with 488 rows, 2850 columns and 43118 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 486 rows, 2850 columns, 43057 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148073e+03, 241 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.07349 0 94 2864.00000 1148.07349 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.07349 1.71% - 0s 0 0 1150.70185 0 101 1168.00000 1150.70185 1.48% - 0s 0 0 1150.70185 0 94 1168.00000 1150.70185 1.48% - 0s 0 0 1150.70185 0 101 1168.00000 1150.70185 1.48% - 0s 0 0 1151.18955 0 107 1168.00000 1151.18955 1.44% - 0s 0 0 1151.56882 0 96 1168.00000 1151.56882 1.41% - 1s 0 0 1151.59676 0 106 1168.00000 1151.59676 1.40% - 1s 0 0 1151.60409 0 101 1168.00000 1151.60409 1.40% - 1s 0 0 1151.62193 0 109 1168.00000 1151.62193 1.40% - 1s 0 0 1151.65449 0 100 1168.00000 1151.65449 1.40% - 1s 0 0 1151.65774 0 104 1168.00000 1151.65774 1.40% - 1s 0 0 1151.66776 0 106 1168.00000 1151.66776 1.40% - 1s 0 0 1151.68312 0 107 1168.00000 1151.68312 1.40% - 1s 0 0 1151.69790 0 106 1168.00000 1151.69790 1.40% - 1s 0 0 1151.70097 0 111 1168.00000 1151.70097 1.40% - 1s 0 0 1151.70593 0 113 1168.00000 1151.70593 1.40% - 1s 0 2 1151.70951 0 113 1168.00000 1151.70951 1.39% - 1s 856 586 1164.00000 40 47 1168.00000 1153.33533 1.26% 22.5 5s * 859 531 41 1165.0000000 1153.33533 1.00% 22.5 5s 3190 1222 cutoff 33 1165.00000 1157.18868 0.67% 20.8 10s 5901 2080 1158.54276 29 87 1165.00000 1158.52564 0.56% 19.9 15s 8857 2738 1163.24752 27 75 1165.00000 1159.34244 0.49% 19.4 20s *10031 2620 33 1164.0000000 1159.60000 0.38% 19.2 21s 12272 2547 1162.63930 22 71 1164.00000 1160.16860 0.33% 18.9 25s 15810 2131 1161.79730 24 77 1164.00000 1161.00000 0.26% 18.3 30s Cutting planes: Gomory: 6 Zero half: 11 Explored 20526 nodes (350710 simplex iterations) in 34.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(30, 49), (10, 51), (43, 65), (48, 49), (24, 50), (24, 57), (19, 56), (19, 25), (22, 48), (22, 62), (25, 50), (26, 51), (26, 56), (42, 43), (42, 57), (23, 65), (23, 62)] adding cut for [(37, 70), (70, 72), (16, 58), (16, 38), (21, 71), (21, 38), (6, 37), (61, 71), (61, 72)] adding cut for [(32, 40), (66, 67), (39, 66), (11, 32), (11, 39), (14, 28), (14, 55), (55, 60), (60, 67)] adding cut for [(20, 36), (12, 54), (12, 15), (15, 20)] Optimize a model with 492 rows, 2850 columns and 43371 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 490 rows, 2850 columns, 43310 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.20000 1.70% - 0s 0 0 1150.57270 0 100 1168.00000 1150.57270 1.49% - 0s 0 0 1150.57270 0 85 1168.00000 1150.57270 1.49% - 0s 0 0 1150.65119 0 95 1168.00000 1150.65119 1.49% - 0s 0 0 1151.03273 0 107 1168.00000 1151.03273 1.45% - 0s 0 0 1151.09049 0 107 1168.00000 1151.09049 1.45% - 0s 0 0 1151.19754 0 105 1168.00000 1151.19754 1.44% - 1s 0 0 1151.21828 0 112 1168.00000 1151.21828 1.44% - 1s 0 0 1151.23226 0 113 1168.00000 1151.23226 1.44% - 1s 0 0 1151.24501 0 111 1168.00000 1151.24501 1.43% - 1s 0 0 1151.35151 0 112 1168.00000 1151.35151 1.43% - 1s 0 0 1151.37024 0 109 1168.00000 1151.37024 1.42% - 1s 0 0 1151.38222 0 109 1168.00000 1151.38222 1.42% - 1s 0 0 1151.38432 0 109 1168.00000 1151.38432 1.42% - 1s 0 0 1151.38502 0 115 1168.00000 1151.38502 1.42% - 1s 0 2 1151.38513 0 115 1168.00000 1151.38513 1.42% - 1s * 503 366 47 1167.0000000 1151.75282 1.31% 17.5 2s 617 431 1155.53770 11 114 1167.00000 1152.08093 1.28% 16.7 5s H 2911 1342 1166.0000000 1157.03819 0.77% 19.1 9s 2981 1383 1163.05556 29 70 1166.00000 1157.05405 0.77% 19.2 10s H 4636 1974 1165.0000000 1157.89655 0.61% 19.1 13s 5478 2257 1159.97521 18 86 1165.00000 1158.21552 0.58% 19.1 15s 8038 2970 1164.00000 26 71 1165.00000 1159.04978 0.51% 19.0 20s H 8649 2636 1164.0000000 1159.19731 0.41% 18.9 21s 10636 2724 1161.23944 20 77 1164.00000 1159.68387 0.37% 18.9 25s 13619 2526 1162.45455 22 88 1164.00000 1160.37500 0.31% 18.7 30s 16836 1848 1162.37662 23 82 1164.00000 1161.25000 0.24% 18.4 35s Cutting planes: Gomory: 3 MIR: 2 Zero half: 34 Explored 19856 nodes (347737 simplex iterations) in 38.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(32, 56), (32, 59), (42, 44), (42, 57), (43, 65), (43, 44), (19, 51), (19, 25), (62, 70), (22, 75), (22, 70), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 75), (29, 63), (23, 65), (23, 62)] adding cut for [(37, 48), (37, 72), (14, 55), (16, 38), (16, 58), (21, 38), (21, 71), (55, 58), (61, 71), (61, 72)] adding cut for [(66, 67), (11, 66), (11, 73), (15, 20), (15, 60), (20, 36), (60, 67)] Optimize a model with 495 rows, 2850 columns and 43664 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.05s Presolved: 493 rows, 2850 columns, 43603 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1177.0000000 1148.20000 2.45% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.57270 0 100 1169.00000 1150.57270 1.58% - 0s 0 0 1150.57270 0 85 1169.00000 1150.57270 1.58% - 0s 0 0 1150.63242 0 98 1169.00000 1150.63242 1.57% - 0s 0 0 1150.77027 0 99 1169.00000 1150.77027 1.56% - 0s 0 0 1150.86333 0 102 1169.00000 1150.86333 1.55% - 0s 0 0 1150.97108 0 105 1169.00000 1150.97108 1.54% - 0s 0 0 1151.02042 0 108 1169.00000 1151.02042 1.54% - 0s 0 0 1151.09542 0 109 1169.00000 1151.09542 1.53% - 0s 0 0 1151.31375 0 95 1169.00000 1151.31375 1.51% - 0s 0 0 1151.38257 0 104 1169.00000 1151.38257 1.51% - 0s 0 0 1151.41985 0 103 1169.00000 1151.41985 1.50% - 1s 0 0 1151.44691 0 106 1169.00000 1151.44691 1.50% - 1s 0 0 1151.48326 0 110 1169.00000 1151.48326 1.50% - 1s 0 0 1151.64630 0 103 1169.00000 1151.64630 1.48% - 1s 0 0 1151.70032 0 103 1169.00000 1151.70032 1.48% - 1s 0 0 1151.75433 0 107 1169.00000 1151.75433 1.48% - 1s 0 0 1151.77658 0 114 1169.00000 1151.77658 1.47% - 1s 0 0 1151.80806 0 107 1169.00000 1151.80806 1.47% - 1s 0 0 1151.81555 0 115 1169.00000 1151.81555 1.47% - 1s 0 0 1151.83147 0 115 1169.00000 1151.83147 1.47% - 1s 0 0 1151.83273 0 117 1169.00000 1151.83273 1.47% - 1s 0 0 1151.83287 0 118 1169.00000 1151.83287 1.47% - 1s 0 2 1151.84864 0 118 1169.00000 1151.84864 1.47% - 1s * 294 221 51 1168.0000000 1153.46319 1.24% 21.7 2s 614 445 1164.97872 23 112 1168.00000 1154.38322 1.17% 21.3 5s * 813 494 53 1167.0000000 1154.38322 1.08% 23.5 6s * 814 448 53 1166.0000000 1154.38322 1.00% 23.5 6s 2740 1109 1161.80952 32 68 1166.00000 1157.74962 0.71% 21.4 10s H 2992 1130 1165.0000000 1157.98432 0.60% 21.2 10s 5315 1880 1160.85405 26 83 1165.00000 1159.18960 0.50% 20.4 15s 7974 2424 1163.28749 28 86 1165.00000 1160.07625 0.42% 19.6 20s *10323 2190 27 1164.0000000 1160.63064 0.29% 19.1 24s 11069 2115 1161.82143 20 77 1164.00000 1160.89583 0.27% 19.0 25s 15038 491 1162.75472 22 80 1164.00000 1162.52209 0.13% 17.8 30s Cutting planes: Gomory: 5 MIR: 1 Zero half: 19 Explored 15561 nodes (270589 simplex iterations) in 30.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(2, 64), (2, 74), (32, 66), (32, 56), (66, 67), (15, 36), (15, 60), (50, 57), (19, 51), (19, 25), (25, 50), (24, 64), (24, 57), (26, 51), (26, 56), (60, 67)] adding cut for [(34, 44), (6, 38), (42, 43), (42, 44), (43, 65), (21, 38), (21, 71), (61, 71), (61, 72), (62, 65), (62, 70), (37, 72), (37, 70)] adding cut for [(48, 49), (22, 48), (22, 29), (23, 29), (23, 63)] Optimize a model with 498 rows, 2850 columns and 43906 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 496 rows, 2850 columns, 43845 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 256 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1176.0000000 1148.20000 2.36% - 0s H 0 0 1171.0000000 1148.20000 1.95% - 0s 0 0 1150.57270 0 100 1171.00000 1150.57270 1.74% - 0s 0 0 1150.57270 0 85 1171.00000 1150.57270 1.74% - 0s 0 0 1150.72158 0 98 1171.00000 1150.72158 1.73% - 0s 0 0 1150.82162 0 102 1171.00000 1150.82162 1.72% - 0s 0 0 1151.00240 0 105 1171.00000 1151.00240 1.71% - 0s 0 0 1151.05906 0 103 1171.00000 1151.05906 1.70% - 0s 0 0 1151.17595 0 107 1171.00000 1151.17595 1.69% - 0s 0 0 1151.23867 0 108 1171.00000 1151.23867 1.69% - 1s 0 0 1151.33195 0 110 1171.00000 1151.33195 1.68% - 1s 0 0 1151.36870 0 108 1171.00000 1151.36870 1.68% - 1s 0 0 1151.37776 0 111 1171.00000 1151.37776 1.68% - 1s 0 2 1151.38274 0 111 1171.00000 1151.38274 1.68% - 1s * 96 83 62 1168.0000000 1151.57524 1.41% 23.1 1s * 146 116 40 1167.0000000 1151.67848 1.31% 21.6 1s H 402 243 1165.0000000 1151.84512 1.13% 20.1 2s 614 368 1156.52466 10 107 1165.00000 1152.18921 1.10% 20.4 5s 2124 749 1161.65068 25 79 1165.00000 1157.26667 0.66% 21.9 10s 4775 1811 1160.88889 17 85 1165.00000 1158.89109 0.52% 20.1 15s * 6306 1986 24 1164.0000000 1159.36747 0.40% 19.6 17s 7511 2053 1160.77778 21 77 1164.00000 1159.83316 0.36% 19.4 20s 10375 1865 1161.92411 25 77 1164.00000 1160.81667 0.27% 18.9 25s Cutting planes: Gomory: 2 MIR: 5 Zero half: 37 Mod-K: 1 Explored 14399 nodes (250178 simplex iterations) in 29.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164000000000e+03, best bound 1.164000000000e+03, gap 0.0% adding cut for [(32, 56), (66, 67), (4, 25), (39, 66), (11, 32), (11, 39), (19, 51), (19, 25), (20, 55), (20, 36), (55, 60), (26, 51), (26, 56), (60, 67)] adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (50, 64), (23, 65), (23, 62), (24, 50), (24, 57), (29, 62), (29, 63)] adding cut for [(70, 72), (21, 38), (21, 71), (22, 75), (22, 48), (61, 71), (61, 72), (30, 38), (37, 70), (37, 48)] Optimize a model with 501 rows, 2850 columns and 44144 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.05s Presolved: 499 rows, 2850 columns, 44083 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 277 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1171.0000000 1148.20000 1.95% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.45064 0 97 1169.00000 1150.45064 1.59% - 0s 0 0 1150.45064 0 85 1169.00000 1150.45064 1.59% - 0s 0 0 1150.57299 0 98 1169.00000 1150.57299 1.58% - 0s 0 0 1150.84245 0 103 1169.00000 1150.84245 1.55% - 0s 0 0 1150.99261 0 98 1169.00000 1150.99261 1.54% - 0s 0 0 1151.15896 0 111 1169.00000 1151.15896 1.53% - 0s 0 0 1151.18023 0 103 1169.00000 1151.18023 1.52% - 0s 0 0 1151.21755 0 109 1169.00000 1151.21755 1.52% - 1s 0 0 1151.23469 0 107 1169.00000 1151.23469 1.52% - 1s 0 0 1151.27714 0 108 1169.00000 1151.27714 1.52% - 1s 0 0 1151.35362 0 113 1169.00000 1151.35362 1.51% - 1s 0 0 1151.54075 0 112 1169.00000 1151.54075 1.49% - 1s 0 0 1151.66914 0 115 1169.00000 1151.66914 1.48% - 1s 0 0 1151.69791 0 113 1169.00000 1151.69791 1.48% - 1s 0 0 1151.75070 0 110 1169.00000 1151.75070 1.48% - 1s 0 0 1151.81944 0 116 1169.00000 1151.81944 1.47% - 1s 0 0 1151.89169 0 111 1169.00000 1151.89169 1.46% - 1s 0 0 1151.93894 0 111 1169.00000 1151.93894 1.46% - 1s 0 0 1151.95992 0 110 1169.00000 1151.95992 1.46% - 1s 0 0 1151.95992 0 110 1169.00000 1151.95992 1.46% - 1s 0 2 1151.96021 0 110 1169.00000 1151.96021 1.46% - 1s H 54 54 1167.0000000 1151.97885 1.29% 24.0 1s 607 461 1156.29540 12 103 1167.00000 1152.73209 1.22% 23.1 5s * 941 563 57 1166.0000000 1154.15250 1.02% 25.5 6s 2438 1079 1163.60086 35 80 1166.00000 1156.53390 0.81% 23.0 10s 4714 2163 1159.58065 26 74 1166.00000 1158.02797 0.68% 22.0 15s * 6170 2548 45 1165.0000000 1158.62667 0.55% 21.6 18s 7018 2712 1163.33333 33 60 1165.00000 1158.91938 0.52% 21.5 20s 9535 3133 1161.83562 29 69 1165.00000 1159.67708 0.46% 21.3 25s 12370 3460 1160.72066 26 85 1165.00000 1160.26034 0.41% 20.7 30s 15278 3560 1163.64286 33 61 1165.00000 1160.78333 0.36% 20.3 35s 18273 3483 1164.00000 31 45 1165.00000 1161.25000 0.32% 20.0 40s 21494 3160 1163.53846 31 76 1165.00000 1161.66782 0.29% 19.5 45s 25482 2178 cutoff 38 1165.00000 1162.31818 0.23% 19.0 50s Cutting planes: Gomory: 6 MIR: 2 Zero half: 41 Explored 29243 nodes (530645 simplex iterations) in 54.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(4, 45), (10, 26), (10, 33), (19, 25), (19, 51), (22, 29), (22, 62), (23, 62), (23, 65), (24, 57), (24, 64), (25, 50), (26, 56), (29, 63), (33, 45), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (51, 56)] adding cut for [(32, 73), (66, 67), (11, 32), (11, 66), (15, 55), (15, 60), (20, 36), (20, 55), (60, 67)] adding cut for [(70, 72), (38, 49), (48, 75), (21, 38), (21, 71), (61, 71), (61, 72), (37, 70), (37, 48)] Optimize a model with 504 rows, 2850 columns and 44465 nonzeros Presolve removed 2 rows and 0 columns Presolve time: 0.04s Presolved: 502 rows, 2850 columns, 44404 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 277 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1148.20000 2.03% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.45064 0 97 1169.00000 1150.45064 1.59% - 0s 0 0 1150.45064 0 85 1169.00000 1150.45064 1.59% - 0s 0 0 1150.56014 0 97 1169.00000 1150.56014 1.58% - 0s 0 0 1150.81674 0 101 1169.00000 1150.81674 1.56% - 0s 0 0 1150.98009 0 104 1169.00000 1150.98009 1.54% - 0s 0 0 1151.11824 0 103 1169.00000 1151.11824 1.53% - 0s 0 0 1151.13620 0 106 1169.00000 1151.13620 1.53% - 0s 0 0 1151.16491 0 110 1169.00000 1151.16491 1.53% - 0s 0 0 1151.33040 0 105 1169.00000 1151.33040 1.51% - 0s 0 0 1151.46346 0 103 1169.00000 1151.46346 1.50% - 1s 0 0 1151.61731 0 103 1169.00000 1151.61731 1.49% - 1s 0 0 1151.75355 0 102 1169.00000 1151.75355 1.48% - 1s 0 0 1151.79153 0 101 1169.00000 1151.79153 1.47% - 1s 0 0 1151.80977 0 107 1169.00000 1151.80977 1.47% - 1s 0 0 1151.82646 0 107 1169.00000 1151.82646 1.47% - 1s 0 0 1151.86523 0 107 1169.00000 1151.86523 1.47% - 1s 0 0 1151.88559 0 105 1169.00000 1151.88559 1.46% - 1s 0 0 1151.89764 0 105 1169.00000 1151.89764 1.46% - 1s 0 0 1151.90044 0 110 1169.00000 1151.90044 1.46% - 1s 0 0 1151.90044 0 110 1169.00000 1151.90044 1.46% - 1s 0 2 1151.90342 0 110 1169.00000 1151.90342 1.46% - 1s * 304 232 42 1168.0000000 1152.40361 1.34% 19.6 2s 742 490 1162.59615 18 89 1168.00000 1153.76471 1.22% 23.5 5s * 1517 692 49 1167.0000000 1156.16667 0.93% 22.2 7s 2806 1319 1161.99563 26 75 1167.00000 1157.60443 0.81% 20.9 10s * 3218 1422 40 1166.0000000 1157.84300 0.70% 20.6 10s * 3429 1313 43 1165.0000000 1158.00652 0.60% 20.4 11s 5092 1826 1163.50000 35 48 1165.00000 1158.81159 0.53% 20.0 15s 7613 2449 1163.76680 37 80 1165.00000 1159.70248 0.45% 19.2 20s 9885 2779 1160.72748 31 88 1165.00000 1160.29167 0.40% 18.9 25s 13008 3067 1163.70833 31 77 1165.00000 1160.90909 0.35% 18.3 30s 16203 3111 1161.88827 30 85 1165.00000 1161.45349 0.30% 17.8 35s 20023 2770 1162.63636 28 72 1165.00000 1162.00000 0.26% 17.2 40s 24444 1664 1163.75000 42 70 1165.00000 1162.75758 0.19% 16.4 45s Cutting planes: Gomory: 10 MIR: 4 Zero half: 39 Explored 27142 nodes (425644 simplex iterations) in 47.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(14, 55), (14, 58), (15, 36), (15, 60), (16, 38), (16, 58), (19, 25), (19, 51), (20, 55), (21, 38), (21, 71), (24, 57), (24, 64), (25, 50), (26, 51), (26, 56), (32, 56), (32, 67), (42, 44), (42, 57), (43, 44), (43, 65), (50, 64), (60, 67), (61, 71), (61, 72), (62, 65), (62, 70), (70, 72)] adding cut for [(22, 49), (22, 29), (23, 63), (23, 29)] Optimize a model with 506 rows, 2850 columns and 44910 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 505 rows, 2850 columns, 44855 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.20000 1.86% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.61095 0 97 1169.00000 1150.61095 1.57% - 0s 0 0 1150.61095 0 85 1169.00000 1150.61095 1.57% - 0s 0 0 1150.63242 0 100 1169.00000 1150.63242 1.57% - 0s 0 0 1150.79893 0 105 1169.00000 1150.79893 1.56% - 0s 0 0 1151.05174 0 104 1169.00000 1151.05174 1.54% - 0s 0 0 1151.43261 0 102 1169.00000 1151.43261 1.50% - 0s 0 0 1151.64949 0 105 1169.00000 1151.64949 1.48% - 0s 0 0 1151.75389 0 113 1169.00000 1151.75389 1.48% - 0s 0 0 1151.79166 0 108 1169.00000 1151.79166 1.47% - 0s 0 0 1151.79319 0 112 1169.00000 1151.79319 1.47% - 0s 0 0 1151.83570 0 104 1169.00000 1151.83570 1.47% - 0s 0 0 1151.84530 0 105 1169.00000 1151.84530 1.47% - 0s 0 0 1151.87832 0 110 1169.00000 1151.87832 1.46% - 1s 0 0 1151.91619 0 108 1169.00000 1151.91619 1.46% - 1s 0 0 1151.93294 0 113 1169.00000 1151.93294 1.46% - 1s 0 0 1151.94109 0 117 1169.00000 1151.94109 1.46% - 1s 0 0 1151.94170 0 112 1169.00000 1151.94170 1.46% - 1s 0 0 1151.94968 0 116 1169.00000 1151.94968 1.46% - 1s 0 0 1151.94968 0 116 1169.00000 1151.94968 1.46% - 1s 0 2 1151.95000 0 116 1169.00000 1151.95000 1.46% - 1s 615 462 1161.85714 29 113 1169.00000 1153.07552 1.36% 19.1 5s H 864 517 1167.0000000 1153.94059 1.12% 23.0 6s H 993 512 1166.0000000 1154.39402 1.00% 23.5 6s 2443 1016 cutoff 33 1166.00000 1156.99265 0.77% 21.5 10s * 3939 1666 30 1165.0000000 1157.90236 0.61% 20.4 13s 4104 1727 1159.82353 28 108 1165.00000 1158.00000 0.60% 20.4 15s 5862 2082 1158.00000 36 92 1165.00000 1158.00000 0.60% 20.5 20s 8296 2113 1163.04167 39 85 1165.00000 1158.69988 0.54% 20.2 25s 11049 2420 cutoff 43 1165.00000 1159.48561 0.47% 19.8 30s 14238 2914 1162.95122 45 83 1165.00000 1160.11111 0.42% 19.4 35s 17791 3049 1162.13725 34 72 1165.00000 1160.66667 0.37% 19.2 40s 21503 2805 cutoff 38 1165.00000 1161.25000 0.32% 18.9 45s 25979 2201 1163.02028 40 78 1165.00000 1161.86364 0.27% 18.4 50s 30513 555 cutoff 44 1165.00000 1163.06250 0.17% 17.8 55s Cutting planes: Gomory: 5 MIR: 1 Zero half: 22 Explored 31291 nodes (549610 simplex iterations) in 55.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (48, 49), (17, 50), (22, 75), (22, 48), (23, 65), (23, 63), (24, 50), (24, 57), (63, 75)] adding cut for [(32, 56), (4, 45), (4, 25), (33, 45), (40, 73), (10, 40), (11, 32), (11, 73), (19, 51), (19, 25), (26, 51), (26, 56)] adding cut for [(37, 72), (37, 70), (29, 62), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(12, 60), (14, 55), (15, 20), (15, 60), (20, 55)] adding cut for [(66, 67), (54, 67), (39, 66), (39, 59)] Optimize a model with 511 rows, 2850 columns and 45159 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 510 rows, 2850 columns, 45104 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 289 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1174.0000000 1148.20000 2.20% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.59817 0 90 1169.00000 1150.59817 1.57% - 0s 0 0 1150.59817 0 85 1169.00000 1150.59817 1.57% - 0s 0 0 1150.64977 0 84 1169.00000 1150.64977 1.57% - 0s 0 0 1150.87993 0 93 1169.00000 1150.87993 1.55% - 0s 0 0 1150.98746 0 100 1169.00000 1150.98746 1.54% - 0s 0 0 1151.01372 0 102 1169.00000 1151.01372 1.54% - 0s 0 0 1151.05711 0 106 1169.00000 1151.05711 1.53% - 0s 0 0 1151.15787 0 102 1169.00000 1151.15787 1.53% - 0s 0 0 1151.18299 0 111 1169.00000 1151.18299 1.52% - 0s 0 0 1151.21508 0 108 1169.00000 1151.21508 1.52% - 0s 0 0 1151.24463 0 106 1169.00000 1151.24463 1.52% - 1s 0 0 1151.35819 0 110 1169.00000 1151.35819 1.51% - 1s 0 0 1151.37985 0 113 1169.00000 1151.37985 1.51% - 1s 0 0 1151.39318 0 114 1169.00000 1151.39318 1.51% - 1s 0 0 1151.53232 0 108 1169.00000 1151.53232 1.49% - 1s 0 0 1151.61214 0 110 1169.00000 1151.61214 1.49% - 1s 0 0 1151.65337 0 106 1169.00000 1151.65337 1.48% - 1s 0 0 1151.75924 0 112 1169.00000 1151.75924 1.47% - 1s 0 0 1151.80994 0 111 1169.00000 1151.80994 1.47% - 1s 0 0 1151.86902 0 111 1169.00000 1151.86902 1.47% - 1s 0 0 1151.88231 0 116 1169.00000 1151.88231 1.46% - 1s 0 0 1151.88273 0 114 1169.00000 1151.88273 1.46% - 1s 0 0 1151.88885 0 119 1169.00000 1151.88885 1.46% - 1s 0 0 1151.89995 0 113 1169.00000 1151.89995 1.46% - 1s 0 0 1151.91033 0 117 1169.00000 1151.91033 1.46% - 1s 0 0 1151.91033 0 117 1169.00000 1151.91033 1.46% - 1s 0 2 1151.91122 0 117 1169.00000 1151.91122 1.46% - 1s 614 471 1154.15972 14 102 1169.00000 1154.15972 1.27% 21.0 5s * 1444 560 36 1165.0000000 1155.79218 0.79% 23.0 7s 1695 618 1157.65306 35 83 1165.00000 1156.19688 0.76% 23.5 10s 4113 1112 1160.82705 36 88 1165.00000 1158.19180 0.58% 21.4 15s 6885 1878 1160.28571 36 84 1165.00000 1159.25000 0.49% 19.9 20s 9846 2358 cutoff 36 1165.00000 1159.97368 0.43% 18.9 25s 13538 2722 1163.20755 41 82 1165.00000 1160.67241 0.37% 18.2 30s 17339 2470 1162.47170 36 71 1165.00000 1161.35484 0.31% 17.9 35s 21993 1497 1163.96970 35 79 1165.00000 1162.28000 0.23% 17.3 40s Cutting planes: Gomory: 4 MIR: 1 Zero half: 21 Explored 24744 nodes (412861 simplex iterations) in 42.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(6, 38), (42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (21, 38), (21, 71), (23, 65), (23, 62), (24, 57), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(32, 67), (32, 56), (19, 51), (19, 25), (34, 64), (15, 36), (15, 60), (50, 64), (25, 50), (26, 51), (26, 56), (60, 67)] adding cut for [(2, 74), (22, 75), (22, 29), (29, 63), (63, 74)] Optimize a model with 514 rows, 2850 columns and 45388 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 513 rows, 2850 columns, 45333 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148200e+03, 301 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.20000 0 85 2864.00000 1148.20000 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.20000 1.86% - 0s H 0 0 1169.0000000 1148.20000 1.78% - 0s 0 0 1150.47633 0 99 1169.00000 1150.47633 1.58% - 0s 0 0 1150.47633 0 85 1169.00000 1150.47633 1.58% - 0s 0 0 1150.63228 0 101 1169.00000 1150.63228 1.57% - 0s 0 0 1150.79554 0 107 1169.00000 1150.79554 1.56% - 0s 0 0 1151.03412 0 106 1169.00000 1151.03412 1.54% - 0s 0 0 1151.15625 0 110 1169.00000 1151.15625 1.53% - 0s 0 0 1151.39861 0 104 1169.00000 1151.39861 1.51% - 0s 0 0 1151.48527 0 108 1169.00000 1151.48527 1.50% - 0s 0 0 1151.74679 0 110 1169.00000 1151.74679 1.48% - 0s 0 0 1151.79335 0 110 1169.00000 1151.79335 1.47% - 0s 0 0 1151.79789 0 110 1169.00000 1151.79789 1.47% - 1s 0 0 1151.80857 0 113 1169.00000 1151.80857 1.47% - 1s 0 2 1151.81423 0 113 1169.00000 1151.81423 1.47% - 1s 697 501 1156.50526 18 87 1169.00000 1154.04923 1.28% 23.5 5s H 800 506 1167.0000000 1154.13677 1.10% 23.9 5s 2903 1307 1159.12353 22 80 1167.00000 1157.40426 0.82% 20.0 10s * 3541 1320 31 1165.0000000 1157.82075 0.62% 19.6 11s 4308 1516 1161.12500 29 75 1165.00000 1157.90991 0.61% 20.2 15s 6984 1725 1160.30508 31 92 1165.00000 1158.50877 0.56% 19.5 20s 9554 2187 1161.80952 29 81 1165.00000 1159.50000 0.47% 18.9 25s 12756 2580 cutoff 39 1165.00000 1160.37989 0.40% 18.5 30s 16146 2648 1162.84375 41 78 1165.00000 1161.04167 0.34% 18.1 35s 20267 1967 1163.49505 39 73 1165.00000 1162.00000 0.26% 17.7 40s Cutting planes: Gomory: 5 Zero half: 16 Explored 24040 nodes (407780 simplex iterations) in 44.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 64), (22, 29), (22, 62), (23, 65), (23, 62), (24, 64), (24, 57), (29, 75)] adding cut for [(32, 56), (19, 51), (19, 25), (11, 32), (11, 39), (25, 50), (26, 51), (26, 56)] adding cut for [(70, 72), (48, 49), (21, 38), (21, 71), (61, 71), (61, 72), (37, 70), (37, 48)] adding cut for [(59, 66), (66, 67), (12, 67), (12, 54)] Optimize a model with 518 rows, 2850 columns and 45548 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 517 rows, 2850 columns, 45493 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 289 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.81133 0 100 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 86 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 100 1168.00000 1149.81133 1.56% - 0s 0 0 1150.89706 0 95 1168.00000 1150.89706 1.46% - 0s 0 0 1151.09966 0 103 1168.00000 1151.09966 1.45% - 1s 0 0 1151.29528 0 104 1168.00000 1151.29528 1.43% - 1s 0 0 1151.33880 0 106 1168.00000 1151.33880 1.43% - 1s 0 0 1151.37738 0 110 1168.00000 1151.37738 1.42% - 1s 0 0 1151.38937 0 110 1168.00000 1151.38937 1.42% - 1s 0 0 1151.40218 0 112 1168.00000 1151.40218 1.42% - 1s 0 0 1151.41796 0 113 1168.00000 1151.41796 1.42% - 1s 0 0 1151.64991 0 107 1168.00000 1151.64991 1.40% - 1s 0 0 1151.73134 0 115 1168.00000 1151.73134 1.39% - 1s 0 0 1151.75299 0 115 1168.00000 1151.75299 1.39% - 1s 0 2 1151.76986 0 115 1168.00000 1151.76986 1.39% - 1s 641 440 1160.49791 28 79 1168.00000 1153.99627 1.20% 23.7 5s H 1529 648 1167.0000000 1156.38776 0.91% 23.3 7s * 2446 994 41 1166.0000000 1157.23684 0.75% 22.1 9s 2714 1136 1163.43243 30 82 1166.00000 1157.48747 0.73% 22.3 10s 5071 2109 1161.42922 32 77 1166.00000 1158.78094 0.62% 21.4 15s H 7239 2574 1165.0000000 1159.43726 0.48% 20.7 19s 7480 2643 1160.05567 29 89 1165.00000 1159.53488 0.47% 20.7 20s 9858 3025 1161.69643 27 80 1165.00000 1160.14439 0.42% 20.2 25s 12626 3281 1163.12500 33 85 1165.00000 1160.66116 0.37% 19.8 30s 15485 3294 1162.50840 26 87 1165.00000 1161.14491 0.33% 19.4 35s 18551 3061 1163.90000 28 64 1165.00000 1161.60101 0.29% 19.0 40s 21442 2629 cutoff 33 1165.00000 1162.03614 0.25% 18.6 45s 25140 1487 1163.80000 33 71 1165.00000 1162.77778 0.19% 17.9 50s Cutting planes: Gomory: 9 MIR: 1 Zero half: 49 Mod-K: 1 Explored 27561 nodes (473777 simplex iterations) in 52.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(43, 65), (43, 44), (6, 16), (6, 30), (42, 44), (42, 57), (62, 70), (29, 62), (16, 38), (17, 50), (21, 38), (21, 71), (23, 65), (23, 29), (24, 50), (24, 57), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(32, 66), (32, 56), (66, 67), (4, 45), (4, 25), (33, 45), (12, 67), (12, 54), (19, 51), (19, 25), (26, 51), (26, 56), (36, 54)] adding cut for [(14, 55), (14, 58), (15, 60), (20, 55), (20, 60)] Optimize a model with 521 rows, 2850 columns and 45864 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 520 rows, 2850 columns, 45809 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 289 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1175.0000000 1148.94737 2.22% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.81133 0 100 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 86 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 101 1168.00000 1149.81133 1.56% - 0s 0 0 1150.97446 0 96 1168.00000 1150.97446 1.46% - 0s 0 0 1151.11603 0 101 1168.00000 1151.11603 1.45% - 1s 0 0 1151.20978 0 106 1168.00000 1151.20978 1.44% - 1s 0 0 1151.23101 0 106 1168.00000 1151.23101 1.44% - 1s 0 0 1151.25147 0 108 1168.00000 1151.25147 1.43% - 1s 0 0 1151.27211 0 106 1168.00000 1151.27211 1.43% - 1s 0 0 1151.32641 0 105 1168.00000 1151.32641 1.43% - 1s 0 0 1151.38869 0 116 1168.00000 1151.38869 1.42% - 1s 0 0 1151.44935 0 109 1168.00000 1151.44935 1.42% - 1s 0 0 1151.48030 0 112 1168.00000 1151.48030 1.41% - 1s 0 0 1151.51880 0 106 1168.00000 1151.51880 1.41% - 1s 0 0 1151.55442 0 105 1168.00000 1151.55442 1.41% - 1s 0 0 1151.57965 0 107 1168.00000 1151.57965 1.41% - 1s 0 0 1151.58436 0 108 1168.00000 1151.58436 1.41% - 1s 0 0 1151.58754 0 109 1168.00000 1151.58754 1.41% - 1s 0 0 1151.58754 0 109 1168.00000 1151.58754 1.41% - 1s 0 2 1151.58914 0 109 1168.00000 1151.58914 1.41% - 1s 617 446 1153.16256 13 91 1168.00000 1153.16256 1.27% 20.9 5s * 1304 661 48 1167.0000000 1155.75092 0.96% 22.1 6s * 2191 783 45 1165.0000000 1156.61651 0.72% 21.1 8s 2997 1138 1163.03077 32 77 1165.00000 1157.40789 0.65% 20.6 10s 5242 1995 1161.89474 24 84 1165.00000 1158.66667 0.54% 20.1 15s 7766 2720 1162.98299 30 81 1165.00000 1159.37799 0.48% 19.4 20s 10114 3202 1161.70342 27 86 1165.00000 1159.92982 0.44% 18.9 25s 13095 3579 1161.75000 29 55 1165.00000 1160.48571 0.39% 18.6 30s 16217 3735 1162.38235 20 70 1165.00000 1160.98485 0.34% 18.2 35s 20162 3681 1163.27434 25 86 1165.00000 1161.45740 0.30% 17.7 40s 24190 3043 1163.21429 24 78 1165.00000 1162.00000 0.26% 17.3 45s 28598 1269 1163.82677 28 83 1165.00000 1162.87975 0.18% 16.8 50s Cutting planes: Gomory: 6 MIR: 1 Zero half: 44 Explored 30274 nodes (494486 simplex iterations) in 51.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(51, 56), (2, 74), (2, 57), (4, 45), (33, 45), (34, 74), (19, 51), (19, 25), (25, 50), (24, 50), (24, 57), (26, 56), (10, 33), (10, 26)] adding cut for [(42, 43), (42, 44), (43, 65), (44, 64), (17, 64), (22, 75), (22, 70), (23, 65), (23, 62), (29, 75), (29, 63), (62, 70)] adding cut for [(32, 66), (66, 67), (11, 32), (11, 73), (15, 60), (60, 67)] adding cut for [(37, 38), (37, 72), (21, 38), (21, 71), (61, 71), (61, 72)] Optimize a model with 525 rows, 2850 columns and 46083 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 524 rows, 2850 columns, 46028 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 279 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1148.94737 1.97% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.65918 0 96 1168.00000 1149.65918 1.57% - 0s 0 0 1149.65918 0 86 1168.00000 1149.65918 1.57% - 0s 0 0 1149.79250 0 95 1168.00000 1149.79250 1.56% - 0s 0 0 1150.75158 0 101 1168.00000 1150.75158 1.48% - 0s 0 0 1150.88295 0 106 1168.00000 1150.88295 1.47% - 1s 0 0 1150.95742 0 107 1168.00000 1150.95742 1.46% - 1s 0 0 1150.99701 0 110 1168.00000 1150.99701 1.46% - 1s 0 0 1151.10099 0 115 1168.00000 1151.10099 1.45% - 1s 0 0 1151.17082 0 118 1168.00000 1151.17082 1.44% - 1s 0 0 1151.18732 0 119 1168.00000 1151.18732 1.44% - 1s 0 0 1151.18917 0 116 1168.00000 1151.18917 1.44% - 1s 0 0 1151.21785 0 110 1168.00000 1151.21785 1.44% - 1s 0 0 1151.22925 0 113 1168.00000 1151.22925 1.44% - 1s 0 0 1151.26338 0 108 1168.00000 1151.26338 1.43% - 1s 0 0 1151.32692 0 114 1168.00000 1151.32692 1.43% - 1s 0 0 1151.33659 0 112 1168.00000 1151.33659 1.43% - 1s 0 0 1151.34862 0 116 1168.00000 1151.34862 1.43% - 1s 0 0 1151.42146 0 111 1168.00000 1151.42146 1.42% - 1s 0 0 1151.53355 0 108 1168.00000 1151.53355 1.41% - 1s 0 0 1151.63052 0 108 1168.00000 1151.63052 1.40% - 1s 0 0 1151.66324 0 107 1168.00000 1151.66324 1.40% - 1s 0 0 1151.86646 0 107 1168.00000 1151.86646 1.38% - 1s 0 0 1151.88540 0 112 1168.00000 1151.88540 1.38% - 1s 0 0 1151.88954 0 110 1168.00000 1151.88954 1.38% - 1s 0 0 1151.90608 0 113 1168.00000 1151.90608 1.38% - 1s 0 0 1151.90950 0 112 1168.00000 1151.90950 1.38% - 1s 0 0 1151.91228 0 113 1168.00000 1151.91228 1.38% - 1s 0 0 1151.91261 0 115 1168.00000 1151.91261 1.38% - 1s 0 2 1151.91356 0 115 1168.00000 1151.91356 1.38% - 2s 612 446 1161.43182 48 112 1168.00000 1153.19175 1.27% 23.7 5s * 1277 575 40 1166.0000000 1155.25000 0.92% 25.5 8s 2059 785 1162.26923 34 71 1166.00000 1156.54626 0.81% 23.6 10s H 2859 1091 1165.0000000 1157.40398 0.65% 22.6 11s 4466 1648 1163.50000 25 55 1165.00000 1158.54332 0.55% 21.5 15s 6758 2216 1162.79552 26 96 1165.00000 1159.54412 0.47% 20.8 20s 9397 2634 1163.17350 29 72 1165.00000 1160.32653 0.40% 20.0 25s 12578 2695 1162.00688 25 91 1165.00000 1161.16087 0.33% 19.4 30s 15790 2194 cutoff 31 1165.00000 1162.00000 0.26% 19.0 35s Cutting planes: Gomory: 4 MIR: 1 Zero half: 48 Explored 19753 nodes (354215 simplex iterations) in 39.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(11, 32), (11, 39), (14, 58), (16, 38), (16, 58), (19, 51), (19, 56), (20, 36), (20, 55), (21, 38), (21, 71), (23, 62), (23, 65), (24, 50), (24, 57), (25, 45), (25, 50), (26, 32), (26, 56), (39, 66), (42, 43), (42, 57), (43, 65), (45, 51), (55, 60), (60, 67), (61, 71), (61, 72), (62, 70), (66, 67), (70, 72)] Optimize a model with 526 rows, 2850 columns and 46579 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.04s Presolved: 525 rows, 2850 columns, 46524 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 297 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1167.0000000 1148.94737 1.55% - 0s 0 0 1149.81133 0 100 1167.00000 1149.81133 1.47% - 0s 0 0 1149.81133 0 86 1167.00000 1149.81133 1.47% - 0s 0 0 1149.81133 0 100 1167.00000 1149.81133 1.47% - 0s 0 0 1150.94645 0 97 1167.00000 1150.94645 1.38% - 0s 0 0 1151.16934 0 103 1167.00000 1151.16934 1.36% - 1s 0 0 1151.24154 0 102 1167.00000 1151.24154 1.35% - 1s 0 0 1151.28036 0 107 1167.00000 1151.28036 1.35% - 1s 0 0 1151.35965 0 102 1167.00000 1151.35965 1.34% - 1s 0 0 1151.38776 0 103 1167.00000 1151.38776 1.34% - 1s 0 0 1151.40858 0 112 1167.00000 1151.40858 1.34% - 1s 0 0 1151.42444 0 104 1167.00000 1151.42444 1.33% - 1s 0 0 1151.42951 0 109 1167.00000 1151.42951 1.33% - 1s 0 0 1151.43145 0 110 1167.00000 1151.43145 1.33% - 1s 0 0 1151.43145 0 110 1167.00000 1151.43145 1.33% - 1s 0 2 1151.43206 0 110 1167.00000 1151.43206 1.33% - 1s 738 482 1156.78418 26 95 1167.00000 1153.74956 1.14% 23.5 5s H 1844 717 1166.0000000 1156.24324 0.84% 23.2 7s 2825 1198 1159.34631 22 95 1166.00000 1157.17336 0.76% 23.1 10s * 4622 1774 35 1165.0000000 1158.22581 0.58% 22.4 13s 5342 1936 1163.73133 34 77 1165.00000 1158.60664 0.55% 22.2 15s 7688 2353 1163.87179 32 83 1165.00000 1159.40242 0.48% 21.6 20s 10204 2538 1162.07148 32 86 1165.00000 1160.01872 0.43% 21.1 25s 13136 2523 1163.37705 29 76 1165.00000 1160.73529 0.37% 20.8 30s 15929 2162 1162.62438 28 87 1165.00000 1161.50000 0.30% 20.4 35s 18761 1198 cutoff 29 1165.00000 1162.48000 0.22% 19.9 40s Cutting planes: Gomory: 9 Zero half: 39 Explored 20524 nodes (392935 simplex iterations) in 41.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(66, 67), (37, 72), (37, 70), (60, 67), (39, 66), (14, 55), (14, 28), (16, 38), (16, 58), (20, 60), (20, 55), (21, 38), (21, 71), (22, 70), (28, 58), (61, 71), (61, 72)] adding cut for [(2, 44), (2, 74), (33, 51), (33, 45), (42, 65), (42, 57), (43, 65), (43, 44), (19, 56), (19, 25), (25, 50), (24, 50), (24, 57), (26, 51), (26, 56)] adding cut for [(10, 32), (10, 40), (11, 32), (11, 59)] Optimize a model with 529 rows, 2850 columns and 46862 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 528 rows, 2850 columns, 46807 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 274 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1172.0000000 1148.94737 1.97% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.92449 0 95 1168.00000 1149.92449 1.55% - 0s 0 0 1149.92449 0 86 1168.00000 1149.92449 1.55% - 0s 0 0 1149.94731 0 101 1168.00000 1149.94731 1.55% - 0s 0 0 1150.69446 0 94 1168.00000 1150.69446 1.48% - 0s 0 0 1151.18704 0 107 1168.00000 1151.18704 1.44% - 1s 0 0 1151.25783 0 111 1168.00000 1151.25783 1.43% - 1s 0 0 1151.30068 0 111 1168.00000 1151.30068 1.43% - 1s 0 0 1151.34256 0 111 1168.00000 1151.34256 1.43% - 1s 0 0 1151.36032 0 114 1168.00000 1151.36032 1.42% - 1s 0 0 1151.46772 0 111 1168.00000 1151.46772 1.42% - 1s 0 0 1151.50917 0 113 1168.00000 1151.50917 1.41% - 1s 0 0 1151.56438 0 111 1168.00000 1151.56438 1.41% - 1s 0 0 1151.63430 0 109 1168.00000 1151.63430 1.40% - 1s 0 0 1151.73527 0 110 1168.00000 1151.73527 1.39% - 1s 0 0 1151.90887 0 109 1168.00000 1151.90887 1.38% - 1s 0 0 1151.95211 0 115 1168.00000 1151.95211 1.37% - 1s 0 0 1151.98652 0 115 1168.00000 1151.98652 1.37% - 1s 0 0 1152.00228 0 116 1168.00000 1152.00228 1.37% - 1s 0 0 1152.00228 0 116 1168.00000 1152.00228 1.37% - 1s 0 2 1152.00261 0 116 1168.00000 1152.00261 1.37% - 1s H 600 442 1167.0000000 1153.78809 1.13% 20.6 3s 613 451 1159.90000 20 109 1167.00000 1153.78809 1.13% 20.2 5s 2761 1256 cutoff 33 1167.00000 1157.28571 0.83% 21.7 10s H 4165 1823 1166.0000000 1158.00000 0.69% 21.4 13s 5063 2144 1162.43590 22 74 1166.00000 1158.39958 0.65% 21.4 15s 7606 2922 1161.27986 23 84 1166.00000 1159.22597 0.58% 20.9 20s * 8628 2835 28 1165.0000000 1159.46899 0.47% 20.8 22s 10207 3023 1162.03611 29 73 1165.00000 1159.90029 0.44% 20.5 25s 13213 3257 1163.58228 27 75 1165.00000 1160.56922 0.38% 20.0 30s 16053 3272 1162.73857 21 93 1165.00000 1161.02915 0.34% 19.7 35s 19083 3043 1163.64000 26 66 1165.00000 1161.52381 0.30% 19.3 40s 22651 2422 1162.69160 28 57 1165.00000 1162.13475 0.25% 18.7 45s Cutting planes: Gomory: 4 MIR: 3 Zero half: 38 Mod-K: 1 Explored 27365 nodes (485082 simplex iterations) in 49.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(34, 44), (37, 72), (37, 70), (42, 43), (42, 44), (43, 65), (14, 58), (16, 38), (16, 58), (21, 38), (21, 71), (23, 65), (23, 62), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (66, 67), (4, 45), (12, 67), (12, 54), (45, 51), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(2, 64), (2, 74), (17, 50), (24, 64), (24, 57), (25, 50), (25, 57)] Optimize a model with 532 rows, 2850 columns and 47081 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 531 rows, 2850 columns, 47026 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 299 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1186.0000000 1148.94737 3.12% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.81133 0 100 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 86 1168.00000 1149.81133 1.56% - 0s 0 0 1149.81133 0 100 1168.00000 1149.81133 1.56% - 0s 0 0 1150.94645 0 97 1168.00000 1150.94645 1.46% - 0s 0 0 1151.16934 0 102 1168.00000 1151.16934 1.44% - 0s 0 0 1151.24573 0 107 1168.00000 1151.24573 1.43% - 0s 0 0 1151.31859 0 110 1168.00000 1151.31859 1.43% - 1s 0 0 1151.33483 0 109 1168.00000 1151.33483 1.43% - 1s 0 0 1151.39320 0 107 1168.00000 1151.39320 1.42% - 1s 0 0 1151.44071 0 112 1168.00000 1151.44071 1.42% - 1s 0 0 1151.44422 0 112 1168.00000 1151.44422 1.42% - 1s 0 0 1151.44491 0 115 1168.00000 1151.44491 1.42% - 1s 0 0 1151.44491 0 115 1168.00000 1151.44491 1.42% - 1s 0 2 1151.45031 0 115 1168.00000 1151.45031 1.42% - 1s 619 431 1166.20000 27 114 1168.00000 1153.26740 1.26% 18.1 5s * 1469 614 39 1166.0000000 1156.41379 0.82% 22.5 7s 2705 1019 1161.36392 26 89 1166.00000 1158.00000 0.69% 22.1 10s 5052 1807 cutoff 27 1166.00000 1159.24101 0.58% 21.5 15s * 5155 1647 24 1165.0000000 1159.27273 0.49% 21.5 15s 7502 1943 1163.65000 22 81 1165.00000 1160.12544 0.42% 20.9 20s 9977 1955 1163.25253 29 71 1165.00000 1160.88000 0.35% 20.5 25s 13085 1669 1163.33333 28 79 1165.00000 1161.61538 0.29% 19.9 30s 16333 709 1163.88235 21 75 1165.00000 1162.83333 0.19% 19.2 35s Cutting planes: Gomory: 4 Zero half: 41 Explored 17326 nodes (324428 simplex iterations) in 36.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (22, 70), (22, 62), (23, 65), (23, 62), (24, 44), (24, 57)] adding cut for [(4, 17), (33, 45), (45, 51), (17, 64), (50, 64), (19, 51), (19, 25), (25, 50)] adding cut for [(32, 56), (66, 67), (39, 66), (10, 40), (10, 26), (11, 32), (11, 39), (26, 56)] adding cut for [(12, 60), (15, 60), (15, 54)] Optimize a model with 536 rows, 2850 columns and 47349 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 535 rows, 2850 columns, 47294 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1173.0000000 1148.94737 2.05% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.80965 0 99 1168.00000 1149.80965 1.56% - 0s 0 0 1149.80965 0 86 1168.00000 1149.80965 1.56% - 0s 0 0 1149.80965 0 99 1168.00000 1149.80965 1.56% - 0s 0 0 1150.82817 0 98 1168.00000 1150.82817 1.47% - 0s 0 0 1150.92441 0 101 1168.00000 1150.92441 1.46% - 1s 0 0 1150.97245 0 101 1168.00000 1150.97245 1.46% - 1s 0 0 1151.06201 0 110 1168.00000 1151.06201 1.45% - 1s 0 0 1151.07317 0 107 1168.00000 1151.07317 1.45% - 1s 0 0 1151.09346 0 111 1168.00000 1151.09346 1.45% - 1s 0 0 1151.13883 0 113 1168.00000 1151.13883 1.44% - 1s 0 0 1151.25328 0 111 1168.00000 1151.25328 1.43% - 1s 0 0 1151.34782 0 109 1168.00000 1151.34782 1.43% - 1s 0 0 1151.42871 0 108 1168.00000 1151.42871 1.42% - 1s 0 0 1151.47003 0 106 1168.00000 1151.47003 1.42% - 1s 0 0 1151.49662 0 110 1168.00000 1151.49662 1.41% - 1s 0 0 1151.49718 0 113 1168.00000 1151.49718 1.41% - 1s 0 0 1151.49718 0 113 1168.00000 1151.49718 1.41% - 1s 0 2 1151.51953 0 113 1168.00000 1151.51953 1.41% - 1s 617 444 1158.50920 28 108 1168.00000 1154.01513 1.20% 21.9 5s * 819 492 32 1166.0000000 1154.45975 0.99% 24.7 6s 2567 1083 1164.94286 24 78 1166.00000 1157.59046 0.72% 23.0 10s 5022 2119 1160.99789 20 86 1166.00000 1158.69240 0.63% 21.4 15s 7421 2858 1159.71636 19 84 1166.00000 1159.35714 0.57% 20.9 20s 9829 3484 1160.37445 20 95 1166.00000 1159.88451 0.52% 20.5 25s *11331 3511 27 1165.0000000 1160.13043 0.42% 20.3 27s 12635 3615 1162.34105 23 81 1165.00000 1160.39394 0.40% 20.2 30s 15489 3655 1162.22222 21 85 1165.00000 1160.81513 0.36% 20.0 35s 18413 3503 1163.60753 24 85 1165.00000 1161.24275 0.32% 19.7 40s 21355 3112 1162.02200 24 89 1165.00000 1161.66735 0.29% 19.5 45s 25170 2177 cutoff 23 1165.00000 1162.35435 0.23% 19.0 50s Cutting planes: Gomory: 5 MIR: 1 Zero half: 40 Explored 28731 nodes (519051 simplex iterations) in 53.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(11, 39), (11, 73), (19, 25), (19, 51), (21, 38), (21, 71), (23, 29), (23, 65), (24, 50), (24, 57), (25, 50), (26, 51), (26, 56), (29, 62), (32, 56), (32, 66), (37, 70), (37, 72), (39, 66), (42, 43), (42, 57), (43, 65), (59, 73), (61, 71), (61, 72), (62, 70)] adding cut for [(6, 16), (6, 30), (12, 67), (14, 55), (14, 58), (16, 58), (20, 55), (20, 60), (60, 67)] Optimize a model with 538 rows, 2850 columns and 47745 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 537 rows, 2850 columns, 47690 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 302 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1180.0000000 1148.94737 2.63% - 0s H 0 0 1168.0000000 1148.94737 1.63% - 0s 0 0 1149.95149 0 93 1168.00000 1149.95149 1.55% - 0s 0 0 1149.95149 0 86 1168.00000 1149.95149 1.55% - 0s 0 0 1150.04548 0 97 1168.00000 1150.04548 1.54% - 0s 0 0 1150.86860 0 102 1168.00000 1150.86860 1.47% - 0s 0 0 1151.06665 0 99 1168.00000 1151.06665 1.45% - 0s 0 0 1151.17291 0 107 1168.00000 1151.17291 1.44% - 0s 0 0 1151.18478 0 108 1168.00000 1151.18478 1.44% - 0s 0 0 1151.29184 0 108 1168.00000 1151.29184 1.43% - 0s 0 0 1151.40863 0 113 1168.00000 1151.40863 1.42% - 0s 0 0 1151.57751 0 112 1168.00000 1151.57751 1.41% - 0s 0 0 1151.59962 0 112 1168.00000 1151.59962 1.40% - 0s 0 0 1151.64150 0 111 1168.00000 1151.64150 1.40% - 1s 0 0 1151.74277 0 110 1168.00000 1151.74277 1.39% - 1s 0 0 1151.77660 0 111 1168.00000 1151.77660 1.39% - 1s 0 0 1151.80457 0 114 1168.00000 1151.80457 1.39% - 1s 0 0 1151.80457 0 114 1168.00000 1151.80457 1.39% - 1s 0 2 1151.83738 0 114 1168.00000 1151.83738 1.38% - 1s * 427 331 18 1167.0000000 1153.06805 1.19% 20.1 2s 617 439 1163.93750 26 115 1167.00000 1153.86105 1.13% 18.3 5s H 1661 684 1166.0000000 1156.76010 0.79% 21.9 8s 2351 983 1159.15936 17 85 1166.00000 1157.61789 0.72% 21.4 10s 4769 1984 1161.76923 19 95 1166.00000 1159.03333 0.60% 20.5 15s 7492 2879 1163.49102 27 72 1166.00000 1159.90811 0.52% 19.5 20s 10064 3640 1163.35955 26 82 1166.00000 1160.51629 0.47% 19.0 25s 13088 4325 1163.14865 22 80 1166.00000 1161.01062 0.43% 18.4 30s 15866 4695 1164.82946 28 87 1166.00000 1161.44737 0.39% 18.0 35s *18770 4084 34 1165.0000000 1161.81507 0.27% 17.8 39s 18773 4083 1162.85938 24 84 1165.00000 1161.81609 0.27% 17.8 40s 22749 2513 1163.93750 21 55 1165.00000 1162.80000 0.19% 17.3 45s Cutting planes: Gomory: 7 MIR: 3 Zero half: 39 Explored 25982 nodes (423102 simplex iterations) in 47.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(33, 45), (42, 44), (42, 57), (43, 65), (43, 44), (45, 51), (19, 51), (19, 25), (24, 50), (24, 57), (25, 50), (23, 65), (23, 63)] adding cut for [(6, 38), (48, 49), (21, 38), (21, 71), (61, 71), (61, 72), (37, 72), (37, 48)] adding cut for [(32, 56), (10, 40), (10, 26), (11, 32), (11, 73), (26, 56)] adding cut for [(66, 67), (15, 36), (15, 60), (59, 66), (60, 67)] Optimize a model with 542 rows, 2850 columns and 47908 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 541 rows, 2850 columns, 47853 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 307 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1184.0000000 1148.94737 2.96% - 0s H 0 0 1171.0000000 1148.94737 1.88% - 0s 0 0 1149.79250 0 95 1171.00000 1149.79250 1.81% - 0s 0 0 1149.79250 0 86 1171.00000 1149.79250 1.81% - 0s 0 0 1149.81133 0 100 1171.00000 1149.81133 1.81% - 0s 0 0 1150.96412 0 99 1171.00000 1150.96412 1.71% - 0s 0 0 1151.13094 0 101 1171.00000 1151.13094 1.70% - 0s 0 0 1151.17867 0 105 1171.00000 1151.17867 1.69% - 0s 0 0 1151.22691 0 109 1171.00000 1151.22691 1.69% - 0s 0 0 1151.26783 0 108 1171.00000 1151.26783 1.69% - 0s 0 0 1151.30672 0 109 1171.00000 1151.30672 1.68% - 0s 0 0 1151.37375 0 114 1171.00000 1151.37375 1.68% - 0s 0 0 1151.38538 0 113 1171.00000 1151.38538 1.68% - 0s 0 0 1151.39406 0 116 1171.00000 1151.39406 1.67% - 1s 0 0 1151.58498 0 110 1171.00000 1151.58498 1.66% - 1s 0 0 1151.61322 0 110 1171.00000 1151.61322 1.66% - 1s 0 0 1151.63702 0 111 1171.00000 1151.63702 1.65% - 1s 0 0 1151.64950 0 111 1171.00000 1151.64950 1.65% - 1s 0 0 1151.68926 0 116 1171.00000 1151.68926 1.65% - 1s 0 0 1151.74382 0 119 1171.00000 1151.74382 1.64% - 1s 0 0 1151.74709 0 119 1171.00000 1151.74709 1.64% - 1s 0 0 1151.74709 0 119 1171.00000 1151.74709 1.64% - 1s 0 2 1151.78168 0 119 1171.00000 1151.78168 1.64% - 1s * 319 243 26 1169.0000000 1153.00807 1.37% 26.1 2s * 457 301 22 1168.0000000 1153.33675 1.26% 24.5 2s H 471 262 1166.0000000 1153.43447 1.08% 24.4 2s 614 350 1163.62240 18 114 1166.00000 1154.46786 0.99% 23.9 5s 2042 737 1161.73077 23 71 1166.00000 1156.89046 0.78% 26.1 10s 4219 1521 1161.76435 24 90 1166.00000 1158.55805 0.64% 24.3 15s 6383 2116 cutoff 33 1166.00000 1159.44338 0.56% 23.0 20s 8997 2720 1164.35000 31 81 1166.00000 1160.13462 0.50% 22.2 25s 11392 3112 cutoff 31 1166.00000 1160.64259 0.46% 21.5 30s 14241 3375 1162.12500 26 80 1166.00000 1161.19642 0.41% 21.1 35s 17330 3514 1163.19024 25 95 1166.00000 1161.73240 0.37% 20.7 40s 20713 3363 1164.11552 24 81 1166.00000 1162.25000 0.32% 20.1 45s *23687 2367 33 1165.0000000 1162.66667 0.20% 19.6 48s 24212 2133 cutoff 27 1165.00000 1162.80684 0.19% 19.5 50s Cutting planes: Gomory: 8 Zero half: 44 Mod-K: 1 Explored 27090 nodes (498163 simplex iterations) in 52.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(66, 67), (4, 45), (39, 66), (11, 32), (11, 39), (45, 51), (14, 28), (14, 55), (19, 51), (19, 56), (20, 55), (20, 60), (26, 32), (26, 56), (60, 67)] adding cut for [(48, 49), (6, 58), (6, 30), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (37, 48), (37, 72)] adding cut for [(34, 74), (42, 43), (42, 44), (43, 65), (2, 44), (2, 74), (22, 75), (22, 70), (62, 65), (62, 70)] Optimize a model with 545 rows, 2850 columns and 48149 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 544 rows, 2850 columns, 48094 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 300 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1171.0000000 1148.94737 1.88% - 0s 0 0 1149.81133 0 100 1171.00000 1149.81133 1.81% - 0s 0 0 1149.81133 0 86 1171.00000 1149.81133 1.81% - 0s 0 0 1149.81133 0 100 1171.00000 1149.81133 1.81% - 0s 0 0 1150.96290 0 98 1171.00000 1150.96290 1.71% - 0s 0 0 1151.10503 0 95 1171.00000 1151.10503 1.70% - 0s 0 0 1151.25898 0 106 1171.00000 1151.25898 1.69% - 0s 0 0 1151.36656 0 109 1171.00000 1151.36656 1.68% - 0s 0 0 1151.42690 0 106 1171.00000 1151.42690 1.67% - 0s 0 0 1151.43540 0 107 1171.00000 1151.43540 1.67% - 0s 0 0 1151.45674 0 108 1171.00000 1151.45674 1.67% - 0s 0 0 1151.47453 0 109 1171.00000 1151.47453 1.67% - 0s 0 0 1151.50383 0 106 1171.00000 1151.50383 1.66% - 0s 0 0 1151.62692 0 109 1171.00000 1151.62692 1.65% - 0s 0 0 1151.80231 0 106 1171.00000 1151.80231 1.64% - 1s 0 0 1151.85782 0 116 1171.00000 1151.85782 1.63% - 1s 0 0 1151.87168 0 111 1171.00000 1151.87168 1.63% - 1s 0 0 1151.87300 0 114 1171.00000 1151.87300 1.63% - 1s 0 0 1151.88030 0 116 1171.00000 1151.88030 1.63% - 1s 0 0 1151.89679 0 114 1171.00000 1151.89679 1.63% - 1s 0 0 1151.93072 0 107 1171.00000 1151.93072 1.63% - 1s 0 0 1151.94126 0 117 1171.00000 1151.94126 1.63% - 1s 0 0 1151.95055 0 114 1171.00000 1151.95055 1.63% - 1s 0 0 1151.95403 0 116 1171.00000 1151.95403 1.63% - 1s 0 2 1151.95426 0 116 1171.00000 1151.95426 1.63% - 1s 609 479 1167.27778 33 111 1171.00000 1152.44674 1.58% 19.7 5s * 898 524 80 1168.0000000 1153.76273 1.22% 23.8 7s 1547 739 1160.38603 24 94 1168.00000 1155.40298 1.08% 24.7 10s 3398 1657 1165.62500 24 82 1168.00000 1157.65686 0.89% 24.1 15s 5290 2677 1166.70833 35 67 1168.00000 1158.45843 0.82% 23.0 20s * 6021 2892 33 1167.0000000 1158.67105 0.71% 22.7 21s 7745 3597 1165.28947 24 80 1167.00000 1159.12544 0.67% 22.6 25s * 7978 3235 36 1166.0000000 1159.16667 0.59% 22.6 25s 8111 3275 1161.44000 26 113 1166.00000 1159.22222 0.58% 22.5 30s 9678 3641 1160.75672 38 83 1166.00000 1159.22222 0.58% 23.2 35s 12065 3730 1160.90123 41 92 1166.00000 1159.22222 0.58% 23.2 40s 14609 3650 cutoff 44 1166.00000 1159.42072 0.56% 23.0 45s 16888 3394 1163.39617 41 92 1166.00000 1159.90810 0.52% 22.9 50s 19930 3553 1164.03922 40 82 1166.00000 1160.55599 0.47% 22.6 55s 22858 3809 1164.58537 44 81 1166.00000 1161.02967 0.43% 22.4 60s 26079 3916 1163.12903 40 84 1166.00000 1161.51504 0.38% 22.1 65s *29048 3227 46 1165.0000000 1161.91346 0.26% 21.8 69s 29050 3227 1162.04315 38 88 1165.00000 1161.91667 0.26% 21.8 70s 33402 1255 cutoff 40 1165.00000 1163.11364 0.16% 21.1 75s Cutting planes: Gomory: 3 MIR: 2 Zero half: 18 Mod-K: 1 Explored 34893 nodes (716999 simplex iterations) in 76.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.165000000000e+03, best bound 1.165000000000e+03, gap 0.0% adding cut for [(33, 51), (33, 45), (4, 45), (42, 44), (42, 57), (43, 65), (43, 44), (50, 64), (19, 51), (19, 25), (62, 70), (22, 75), (22, 70), (24, 64), (24, 57), (25, 50), (29, 62), (23, 65), (23, 29), (63, 75)] adding cut for [(32, 56), (66, 67), (39, 66), (10, 26), (11, 32), (11, 39), (54, 60), (26, 56), (60, 67)] adding cut for [(48, 49), (37, 48), (37, 72), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72)] adding cut for [(12, 15), (14, 55), (14, 28), (15, 20), (20, 55)] Optimize a model with 549 rows, 2850 columns and 48464 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 548 rows, 2850 columns, 48409 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148947e+03, 276 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.94737 0 86 2864.00000 1148.94737 59.9% - 0s Another try with MIP start H 0 0 1171.0000000 1148.94737 1.88% - 0s 0 0 1149.79250 0 94 1171.00000 1149.79250 1.81% - 0s 0 0 1149.79250 0 86 1171.00000 1149.79250 1.81% - 0s 0 0 1149.94570 0 103 1171.00000 1149.94570 1.80% - 0s 0 0 1151.00206 0 105 1171.00000 1151.00206 1.71% - 0s 0 0 1151.08782 0 107 1171.00000 1151.08782 1.70% - 0s 0 0 1151.23401 0 106 1171.00000 1151.23401 1.69% - 0s 0 0 1151.26680 0 104 1171.00000 1151.26680 1.69% - 0s 0 0 1151.34788 0 106 1171.00000 1151.34788 1.68% - 0s 0 0 1151.37634 0 105 1171.00000 1151.37634 1.68% - 0s 0 0 1151.47465 0 107 1171.00000 1151.47465 1.67% - 1s 0 0 1151.57838 0 103 1171.00000 1151.57838 1.66% - 1s 0 0 1151.64335 0 109 1171.00000 1151.64335 1.65% - 1s 0 0 1151.70425 0 109 1171.00000 1151.70425 1.65% - 1s 0 0 1151.74417 0 110 1171.00000 1151.74417 1.64% - 1s 0 0 1151.77525 0 108 1171.00000 1151.77525 1.64% - 1s 0 0 1151.81486 0 107 1171.00000 1151.81486 1.64% - 1s 0 0 1151.81837 0 108 1171.00000 1151.81837 1.64% - 1s 0 0 1151.81942 0 112 1171.00000 1151.81942 1.64% - 1s 0 0 1151.83836 0 113 1171.00000 1151.83836 1.64% - 1s 0 0 1151.86190 0 110 1171.00000 1151.86190 1.63% - 1s 0 0 1151.87698 0 112 1171.00000 1151.87698 1.63% - 1s 0 0 1151.88386 0 107 1171.00000 1151.88386 1.63% - 1s 0 0 1151.90537 0 109 1171.00000 1151.90537 1.63% - 1s 0 0 1151.90931 0 110 1171.00000 1151.90931 1.63% - 1s 0 0 1151.91330 0 115 1171.00000 1151.91330 1.63% - 1s 0 2 1151.91530 0 115 1171.00000 1151.91530 1.63% - 1s * 451 363 58 1170.0000000 1152.52652 1.49% 21.3 3s 607 465 1163.03333 21 104 1170.00000 1152.75821 1.47% 20.6 5s * 1674 748 51 1168.0000000 1156.10741 1.02% 23.1 9s 1735 768 1163.02222 21 81 1168.00000 1156.15263 1.01% 22.9 10s * 3817 1713 26 1167.0000000 1158.20000 0.75% 21.9 14s 4041 1797 1165.44186 34 62 1167.00000 1158.28866 0.75% 21.8 15s * 4389 1683 40 1166.0000000 1158.50666 0.64% 21.7 16s 4991 1879 1164.89573 37 65 1166.00000 1158.56668 0.64% 22.4 20s 7313 2001 1160.03864 34 80 1166.00000 1158.94964 0.60% 21.8 25s 10033 1848 1162.23843 36 80 1166.00000 1160.18333 0.50% 21.0 30s 12855 2170 1162.31742 38 76 1166.00000 1160.94382 0.43% 20.3 35s 16442 2357 1162.89109 35 82 1166.00000 1161.73697 0.37% 19.7 40s 19517 2213 1164.00000 39 48 1166.00000 1162.32598 0.32% 19.2 45s 23645 1460 1164.17997 41 79 1166.00000 1163.12500 0.25% 18.6 50s Cutting planes: Gomory: 2 MIR: 1 Zero half: 20 Explored 26905 nodes (480417 simplex iterations) in 53.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(37, 72), (37, 70), (42, 44), (42, 57), (43, 65), (43, 44), (16, 38), (16, 58), (21, 38), (21, 71), (23, 65), (23, 62), (24, 64), (24, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(32, 66), (32, 56), (66, 67), (36, 54), (10, 40), (10, 26), (12, 67), (12, 54), (26, 56)] adding cut for [(33, 45), (45, 51), (17, 50), (19, 51), (19, 25), (25, 50)] adding cut for [(9, 20), (14, 55), (15, 20), (15, 60), (55, 60)] Optimize a model with 553 rows, 2850 columns and 48698 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 552 rows, 2850 columns, 48643 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148956e+03, 285 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.95620 0 93 2864.00000 1148.95620 59.9% - 0s Another try with MIP start H 0 0 1187.0000000 1148.95620 3.21% - 0s H 0 0 1177.0000000 1148.95620 2.38% - 0s 0 0 1149.81936 0 103 1177.00000 1149.81936 2.31% - 0s 0 0 1149.81936 0 93 1177.00000 1149.81936 2.31% - 1s 0 0 1150.72475 0 102 1177.00000 1150.72475 2.23% - 1s 0 0 1151.01427 0 104 1177.00000 1151.01427 2.21% - 1s 0 0 1151.27454 0 109 1177.00000 1151.27454 2.19% - 1s 0 0 1151.33508 0 112 1177.00000 1151.33508 2.18% - 1s 0 0 1151.51297 0 113 1177.00000 1151.51297 2.17% - 1s 0 0 1151.56253 0 114 1177.00000 1151.56253 2.16% - 1s 0 0 1151.64322 0 114 1177.00000 1151.64322 2.15% - 1s 0 0 1151.66198 0 112 1177.00000 1151.66198 2.15% - 1s 0 0 1151.67052 0 111 1177.00000 1151.67052 2.15% - 1s 0 0 1151.68830 0 115 1177.00000 1151.68830 2.15% - 1s 0 0 1151.74538 0 108 1177.00000 1151.74538 2.15% - 1s 0 0 1151.76801 0 111 1177.00000 1151.76801 2.14% - 2s 0 0 1151.81043 0 105 1177.00000 1151.81043 2.14% - 2s 0 0 1151.83340 0 107 1177.00000 1151.83340 2.14% - 2s 0 0 1151.84698 0 115 1177.00000 1151.84698 2.14% - 2s 0 0 1151.85367 0 115 1177.00000 1151.85367 2.14% - 2s 0 0 1151.85814 0 117 1177.00000 1151.85814 2.14% - 2s 0 2 1151.92333 0 117 1177.00000 1151.92333 2.13% - 2s * 126 116 78 1174.0000000 1152.77438 1.81% 24.4 2s * 385 261 33 1170.0000000 1153.02534 1.45% 23.5 3s * 538 314 22 1168.0000000 1153.90625 1.21% 22.4 3s 705 423 1161.91357 35 103 1168.00000 1154.27651 1.17% 22.2 5s H 2345 945 1167.0000000 1157.55522 0.81% 22.6 10s 4744 1941 1164.39008 26 79 1167.00000 1159.12821 0.67% 21.3 15s * 6257 2290 33 1166.0000000 1159.74576 0.54% 20.6 18s 7077 2445 cutoff 25 1166.00000 1160.00000 0.51% 20.4 20s 9644 2842 1163.93333 32 66 1166.00000 1160.73016 0.45% 19.9 25s 12538 3029 1161.69492 24 77 1166.00000 1161.37838 0.40% 19.4 30s 15504 3011 1163.97016 25 87 1166.00000 1161.98077 0.34% 19.0 35s 18703 2719 1164.21988 23 77 1166.00000 1162.60417 0.29% 18.6 40s 22780 1656 cutoff 28 1166.00000 1163.52809 0.21% 17.9 45s Cutting planes: Gomory: 7 MIR: 5 Zero half: 35 Mod-K: 1 Explored 25395 nodes (436850 simplex iterations) in 47.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(70, 72), (42, 43), (42, 57), (43, 65), (14, 58), (14, 28), (16, 38), (16, 58), (17, 24), (21, 38), (21, 71), (22, 70), (22, 62), (23, 65), (23, 62), (24, 57), (61, 71), (61, 72)] adding cut for [(51, 56), (2, 74), (2, 44), (44, 64), (34, 74), (50, 64), (19, 51), (19, 25), (25, 50), (26, 56), (10, 26)] adding cut for [(32, 40), (66, 67), (11, 32), (11, 66), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 556 rows, 2850 columns and 48971 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 555 rows, 2850 columns, 48916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148956e+03, 304 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.95620 0 93 2864.00000 1148.95620 59.9% - 0s Another try with MIP start H 0 0 1170.0000000 1148.95620 1.80% - 0s 0 0 1149.86321 0 95 1170.00000 1149.86321 1.72% - 0s 0 0 1149.86321 0 93 1170.00000 1149.86321 1.72% - 1s 0 0 1150.72475 0 102 1170.00000 1150.72475 1.65% - 1s 0 0 1150.94689 0 103 1170.00000 1150.94689 1.63% - 1s 0 0 1150.97187 0 105 1170.00000 1150.97187 1.63% - 1s 0 0 1151.20357 0 111 1170.00000 1151.20357 1.61% - 1s 0 0 1151.40407 0 114 1170.00000 1151.40407 1.59% - 1s 0 0 1151.44516 0 116 1170.00000 1151.44516 1.59% - 1s 0 0 1151.53775 0 108 1170.00000 1151.53775 1.58% - 1s 0 0 1151.57595 0 115 1170.00000 1151.57595 1.57% - 1s 0 0 1151.60930 0 106 1170.00000 1151.60930 1.57% - 1s 0 0 1151.63900 0 115 1170.00000 1151.63900 1.57% - 1s 0 0 1151.70011 0 108 1170.00000 1151.70011 1.56% - 1s 0 0 1151.80425 0 109 1170.00000 1151.80425 1.56% - 1s 0 0 1151.84715 0 110 1170.00000 1151.84715 1.55% - 1s 0 0 1151.85139 0 112 1170.00000 1151.85139 1.55% - 1s 0 0 1151.85139 0 112 1170.00000 1151.85139 1.55% - 2s 0 2 1151.90406 0 112 1170.00000 1151.90406 1.55% - 2s 615 464 1154.10000 13 106 1170.00000 1154.10000 1.36% 21.0 5s * 1481 667 36 1168.0000000 1155.55581 1.07% 23.1 8s H 2070 776 1167.0000000 1156.66121 0.89% 22.8 10s * 2137 730 31 1166.0000000 1156.80851 0.79% 22.9 10s 2805 940 1161.12178 41 77 1166.00000 1157.01896 0.77% 23.3 15s 4945 1144 1165.00000 44 33 1166.00000 1158.84000 0.61% 22.6 20s 7356 1847 1162.47222 38 83 1166.00000 1159.72923 0.54% 21.8 25s 9701 2329 1163.62832 43 82 1166.00000 1160.32292 0.49% 21.4 30s 12542 2719 1161.65772 38 85 1166.00000 1160.91821 0.44% 20.9 35s 15657 3002 1162.79446 37 89 1166.00000 1161.37500 0.40% 20.5 40s 18982 3026 cutoff 40 1166.00000 1161.90580 0.35% 20.2 45s 22505 2804 1164.77778 43 69 1166.00000 1162.39744 0.31% 19.8 50s 26692 2075 cutoff 41 1166.00000 1163.00000 0.26% 19.2 55s Cutting planes: Gomory: 5 MIR: 2 Zero half: 16 Explored 31427 nodes (576835 simplex iterations) in 59.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(66, 67), (4, 45), (6, 16), (6, 30), (39, 66), (11, 32), (11, 39), (45, 51), (14, 55), (14, 58), (16, 58), (19, 51), (19, 56), (55, 60), (26, 32), (26, 56), (60, 67)] adding cut for [(37, 72), (37, 70), (29, 74), (29, 62), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 44), (2, 34), (42, 43), (42, 44), (43, 65), (23, 65), (23, 63)] adding cut for [(9, 20), (12, 54), (15, 20), (15, 54)] Optimize a model with 560 rows, 2850 columns and 49207 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 559 rows, 2850 columns, 49152 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148956e+03, 322 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.95620 0 93 2864.00000 1148.95620 59.9% - 0s Another try with MIP start H 0 0 1174.0000000 1148.95620 2.13% - 0s H 0 0 1172.0000000 1148.95620 1.97% - 0s 0 0 1149.73163 0 98 1172.00000 1149.73163 1.90% - 0s 0 0 1149.73163 0 93 1172.00000 1149.73163 1.90% - 1s 0 0 1150.72475 0 102 1172.00000 1150.72475 1.82% - 1s 0 0 1151.01427 0 104 1172.00000 1151.01427 1.79% - 1s 0 0 1151.27454 0 109 1172.00000 1151.27454 1.77% - 1s 0 0 1151.33508 0 112 1172.00000 1151.33508 1.76% - 1s 0 0 1151.51297 0 113 1172.00000 1151.51297 1.75% - 1s 0 0 1151.56253 0 114 1172.00000 1151.56253 1.74% - 1s 0 0 1151.64322 0 114 1172.00000 1151.64322 1.74% - 1s 0 0 1151.66200 0 113 1172.00000 1151.66200 1.74% - 1s 0 0 1151.67052 0 111 1172.00000 1151.67052 1.73% - 1s 0 0 1151.68830 0 115 1172.00000 1151.68830 1.73% - 1s 0 0 1151.68900 0 115 1172.00000 1151.68900 1.73% - 2s 0 0 1151.68900 0 115 1172.00000 1151.68900 1.73% - 2s 0 2 1151.68958 0 115 1172.00000 1151.68958 1.73% - 2s 611 493 1164.50000 19 108 1172.00000 1152.69939 1.65% 20.5 5s * 1063 648 66 1171.0000000 1154.49834 1.41% 22.7 7s * 1118 574 43 1168.0000000 1154.54444 1.15% 23.0 7s * 1315 532 33 1167.0000000 1156.29412 0.92% 23.0 8s 1412 568 1162.80000 28 116 1167.00000 1156.56886 0.89% 23.0 10s 2910 964 1164.40000 47 41 1167.00000 1157.69365 0.80% 22.3 15s 5524 2099 1162.00000 42 59 1167.00000 1159.29245 0.66% 20.7 20s 8450 3112 1164.84211 40 66 1167.00000 1160.26977 0.58% 19.7 25s *10277 3305 41 1166.0000000 1160.67241 0.46% 19.3 28s 11352 3360 1164.33333 34 86 1166.00000 1160.94118 0.43% 19.2 30s 14412 3474 1164.66667 44 74 1166.00000 1161.66667 0.37% 18.9 35s 17833 3213 1164.57246 32 85 1166.00000 1162.33708 0.31% 18.5 40s 21350 2599 cutoff 41 1166.00000 1163.00000 0.26% 18.1 45s 25978 577 cutoff 39 1166.00000 1164.36364 0.14% 17.3 50s Cutting planes: Gomory: 3 MIR: 2 Zero half: 14 Explored 26684 nodes (453549 simplex iterations) in 50.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(4, 25), (70, 72), (42, 44), (42, 57), (43, 65), (43, 44), (14, 58), (14, 28), (16, 38), (16, 58), (62, 70), (24, 50), (24, 57), (25, 50), (61, 71), (61, 72), (23, 65), (23, 62), (21, 38), (21, 71)] adding cut for [(66, 67), (33, 45), (11, 32), (11, 66), (12, 67), (12, 54), (45, 51), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(37, 48), (6, 37), (6, 30), (22, 48), (22, 49)] Optimize a model with 563 rows, 2850 columns and 49498 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 562 rows, 2850 columns, 49443 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.148956e+03, 296 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1148.95620 0 93 2864.00000 1148.95620 59.9% - 0s Another try with MIP start H 0 0 1171.0000000 1148.95620 1.88% - 0s 0 0 1149.73163 0 99 1171.00000 1149.73163 1.82% - 0s 0 0 1149.73163 0 93 1171.00000 1149.73163 1.82% - 1s 0 0 1150.72475 0 102 1171.00000 1150.72475 1.73% - 1s 0 0 1150.94689 0 102 1171.00000 1150.94689 1.71% - 1s 0 0 1150.97187 0 103 1171.00000 1150.97187 1.71% - 1s 0 0 1151.21158 0 109 1171.00000 1151.21158 1.69% - 1s 0 0 1151.49951 0 105 1171.00000 1151.49951 1.67% - 1s 0 0 1151.59302 0 110 1171.00000 1151.59302 1.66% - 1s 0 0 1151.66989 0 105 1171.00000 1151.66989 1.65% - 1s 0 0 1151.67976 0 106 1171.00000 1151.67976 1.65% - 1s 0 0 1151.72076 0 109 1171.00000 1151.72076 1.65% - 1s 0 0 1151.74424 0 104 1171.00000 1151.74424 1.64% - 1s 0 0 1151.74466 0 108 1171.00000 1151.74466 1.64% - 1s 0 0 1151.75257 0 109 1171.00000 1151.75257 1.64% - 1s 0 0 1151.77397 0 107 1171.00000 1151.77397 1.64% - 1s 0 0 1151.77472 0 110 1171.00000 1151.77472 1.64% - 1s 0 0 1151.77654 0 112 1171.00000 1151.77654 1.64% - 1s 0 0 1151.77654 0 112 1171.00000 1151.77654 1.64% - 1s 0 2 1151.78086 0 112 1171.00000 1151.78086 1.64% - 1s * 499 389 19 1170.0000000 1152.72087 1.48% 22.5 3s 609 430 1165.33333 35 106 1170.00000 1152.92000 1.46% 21.2 5s * 899 502 40 1167.0000000 1154.76145 1.05% 24.1 6s 1881 741 1164.85227 37 69 1167.00000 1156.95652 0.86% 23.0 10s 3949 1739 1165.88000 34 76 1167.00000 1158.51501 0.73% 21.7 15s 6510 2763 1165.45455 28 78 1167.00000 1159.35799 0.65% 20.9 20s 8919 3584 1163.08914 25 87 1167.00000 1159.89647 0.61% 20.4 25s * 9252 3426 34 1166.0000000 1159.95442 0.52% 20.3 26s 9409 3488 1162.96923 27 107 1166.00000 1159.99000 0.52% 20.3 30s 10916 3837 1161.92000 44 90 1166.00000 1159.99000 0.52% 21.0 35s 13397 4034 1160.22807 37 81 1166.00000 1159.99000 0.52% 21.1 40s 15914 3985 1164.32721 41 88 1166.00000 1159.99000 0.52% 21.0 45s 18558 3789 1164.29412 43 73 1166.00000 1160.00000 0.51% 20.8 50s 21567 3999 1164.80556 38 88 1166.00000 1160.55882 0.47% 20.6 55s 24114 4408 1161.93919 37 79 1166.00000 1160.92405 0.44% 20.4 60s 27270 4753 1163.51869 46 82 1166.00000 1161.29982 0.40% 20.2 65s 30857 4927 1164.67769 38 84 1166.00000 1161.68571 0.37% 19.8 70s 34257 4948 1163.28125 42 82 1166.00000 1162.00000 0.34% 19.5 75s 38446 4704 cutoff 41 1166.00000 1162.39844 0.31% 19.2 80s 42462 4055 1164.09181 41 76 1166.00000 1162.77778 0.28% 18.9 85s 46819 2791 1164.89888 41 70 1166.00000 1163.29011 0.23% 18.7 90s 51804 9 cutoff 45 1166.00000 1165.00000 0.09% 18.1 95s Cutting planes: Gomory: 6 MIR: 2 Zero half: 16 Explored 51814 nodes (938190 simplex iterations) in 95.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(32, 39), (32, 56), (19, 51), (19, 25), (34, 64), (12, 39), (12, 54), (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, 62), (22, 75), (22, 70), (23, 65), (23, 29), (62, 70)] adding cut for [(48, 49), (6, 16), (6, 30), (16, 38), (21, 38), (21, 71), (61, 71), (61, 72), (37, 48), (37, 72)] adding cut for [(66, 67), (60, 67), (15, 60)] Optimize a model with 567 rows, 2850 columns and 49716 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 566 rows, 2850 columns, 49661 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 283 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 85 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1169.0000000 1150.96667 1.54% - 0s 0 0 1152.39947 0 98 1169.00000 1152.39947 1.42% - 0s 0 0 1152.39947 0 84 1169.00000 1152.39947 1.42% - 0s 0 0 1152.55450 0 96 1169.00000 1152.55450 1.41% - 0s 0 0 1152.98112 0 101 1169.00000 1152.98112 1.37% - 0s 0 0 1153.14874 0 105 1169.00000 1153.14874 1.36% - 0s 0 0 1153.33133 0 103 1169.00000 1153.33133 1.34% - 0s 0 0 1153.42827 0 107 1169.00000 1153.42827 1.33% - 1s 0 0 1153.45673 0 112 1169.00000 1153.45673 1.33% - 1s 0 0 1153.49584 0 111 1169.00000 1153.49584 1.33% - 1s 0 0 1153.74063 0 113 1169.00000 1153.74063 1.31% - 1s 0 0 1153.78807 0 114 1169.00000 1153.78807 1.30% - 1s 0 0 1153.80820 0 115 1169.00000 1153.80820 1.30% - 1s 0 0 1153.82685 0 115 1169.00000 1153.82685 1.30% - 1s 0 2 1153.84055 0 115 1169.00000 1153.84055 1.30% - 1s 620 475 1165.27778 55 114 1169.00000 1156.13636 1.10% 20.9 5s * 1125 585 32 1168.0000000 1156.69384 0.97% 24.1 7s 2065 852 1159.66667 21 67 1168.00000 1158.42857 0.82% 23.1 10s H 3160 1340 1167.0000000 1159.19677 0.67% 22.3 12s 4274 1838 1164.14433 20 89 1167.00000 1159.87367 0.61% 22.0 15s * 6394 2204 30 1166.0000000 1160.65957 0.46% 21.3 19s 6791 2281 1162.42857 22 72 1166.00000 1160.83333 0.44% 21.1 20s 9124 2574 cutoff 24 1166.00000 1161.64085 0.37% 20.7 25s 11655 2739 1163.68085 28 77 1166.00000 1162.31311 0.32% 20.2 30s 14714 2505 1163.85126 36 88 1166.00000 1162.98953 0.26% 19.7 35s 17912 1652 cutoff 35 1166.00000 1163.69444 0.20% 19.1 40s Cutting planes: Gomory: 8 MIR: 2 Zero half: 40 Explored 20327 nodes (368442 simplex iterations) in 42.91 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(6, 48), (6, 30), (42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (22, 48), (22, 62), (23, 65), (23, 62), (24, 57)] adding cut for [(66, 67), (33, 45), (39, 66), (11, 32), (11, 39), (45, 51), (19, 51), (19, 56), (55, 60), (26, 32), (26, 56), (60, 67)] adding cut for [(70, 72), (14, 58), (14, 28), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (37, 70), (37, 49)] adding cut for [(2, 64), (2, 74), (4, 25), (34, 74), (50, 64), (25, 50)] adding cut for [(12, 54), (12, 15), (15, 20)] Optimize a model with 572 rows, 2850 columns and 49965 nonzeros Presolve time: 0.05s Presolved: 572 rows, 2850 columns, 49965 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 281 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 85 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1170.0000000 1150.96667 1.63% - 0s 0 0 1152.90550 0 99 1170.00000 1152.90550 1.46% - 0s 0 0 1152.90550 0 84 1170.00000 1152.90550 1.46% - 0s 0 0 1152.93624 0 99 1170.00000 1152.93624 1.46% - 0s 0 0 1153.06266 0 102 1170.00000 1153.06266 1.45% - 0s 0 0 1153.13024 0 105 1170.00000 1153.13024 1.44% - 0s 0 0 1153.20400 0 105 1170.00000 1153.20400 1.44% - 0s 0 0 1153.20865 0 105 1170.00000 1153.20865 1.44% - 0s 0 0 1153.24202 0 105 1170.00000 1153.24202 1.43% - 1s 0 0 1153.25981 0 110 1170.00000 1153.25981 1.43% - 1s 0 0 1153.34296 0 112 1170.00000 1153.34296 1.42% - 1s 0 0 1153.51694 0 107 1170.00000 1153.51694 1.41% - 1s 0 0 1153.64051 0 106 1170.00000 1153.64051 1.40% - 1s 0 0 1153.65697 0 109 1170.00000 1153.65697 1.40% - 1s 0 0 1153.70733 0 111 1170.00000 1153.70733 1.39% - 1s 0 0 1153.73422 0 114 1170.00000 1153.73422 1.39% - 1s 0 0 1153.73930 0 115 1170.00000 1153.73930 1.39% - 1s 0 0 1153.74073 0 115 1170.00000 1153.74073 1.39% - 1s 0 2 1153.74154 0 115 1170.00000 1153.74154 1.39% - 1s 611 422 1162.72000 20 114 1170.00000 1155.17587 1.27% 20.7 5s * 692 437 52 1169.0000000 1155.17587 1.18% 22.6 5s H 2132 739 1167.0000000 1158.61905 0.72% 22.1 9s 2619 949 1160.85674 22 90 1167.00000 1159.02027 0.68% 22.0 10s 4847 1744 1162.89706 28 79 1167.00000 1160.47024 0.56% 21.1 15s 7208 2321 1166.00000 26 36 1167.00000 1161.35720 0.48% 20.4 20s 9614 2704 cutoff 27 1167.00000 1161.92683 0.43% 19.9 25s 12632 3130 1164.01359 26 79 1167.00000 1162.56701 0.38% 19.4 30s *15577 2607 35 1166.0000000 1163.05508 0.25% 19.0 34s 15580 2606 1164.58475 25 81 1166.00000 1163.05540 0.25% 19.0 35s 19518 709 cutoff 31 1166.00000 1164.50000 0.13% 18.0 40s Cutting planes: Gomory: 5 Zero half: 19 Explored 20289 nodes (356729 simplex iterations) in 40.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(32, 39), (32, 56), (2, 74), (2, 23), (39, 59), (43, 65), (43, 44), (19, 51), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (42, 44), (42, 57)] adding cut for [(70, 72), (28, 58), (29, 62), (29, 63), (14, 28), (14, 55), (15, 20), (15, 60), (16, 38), (16, 58), (21, 38), (21, 71), (55, 60), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (36, 54), (11, 66), (11, 73), (12, 67), (12, 54)] Optimize a model with 575 rows, 2850 columns and 50275 nonzeros Presolve time: 0.05s Presolved: 575 rows, 2850 columns, 50275 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 271 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 85 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1178.0000000 1150.96667 2.29% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.85597 0 99 1171.00000 1152.85597 1.55% - 0s 0 0 1152.85597 0 84 1171.00000 1152.85597 1.55% - 0s 0 0 1152.90834 0 98 1171.00000 1152.90834 1.54% - 0s 0 0 1152.97277 0 101 1171.00000 1152.97277 1.54% - 0s 0 0 1153.02432 0 108 1171.00000 1153.02432 1.54% - 0s 0 0 1153.11061 0 106 1171.00000 1153.11061 1.53% - 1s 0 0 1153.32364 0 111 1171.00000 1153.32364 1.51% - 1s 0 0 1153.36555 0 107 1171.00000 1153.36555 1.51% - 1s 0 0 1153.38417 0 110 1171.00000 1153.38417 1.50% - 1s 0 0 1153.44499 0 109 1171.00000 1153.44499 1.50% - 1s 0 0 1153.49815 0 113 1171.00000 1153.49815 1.49% - 1s 0 0 1153.59469 0 113 1171.00000 1153.59469 1.49% - 1s 0 0 1153.61248 0 113 1171.00000 1153.61248 1.48% - 1s 0 0 1153.65158 0 115 1171.00000 1153.65158 1.48% - 1s 0 0 1153.67131 0 117 1171.00000 1153.67131 1.48% - 1s 0 0 1153.69445 0 117 1171.00000 1153.69445 1.48% - 1s 0 0 1153.70638 0 117 1171.00000 1153.70638 1.48% - 1s 0 0 1153.71493 0 112 1171.00000 1153.71493 1.48% - 1s 0 0 1153.71561 0 114 1171.00000 1153.71561 1.48% - 1s 0 0 1153.71561 0 113 1171.00000 1153.71561 1.48% - 1s 0 2 1153.71704 0 113 1171.00000 1153.71704 1.48% - 1s 614 471 1165.66667 37 115 1171.00000 1155.48563 1.32% 22.9 5s * 984 595 56 1170.0000000 1156.42721 1.16% 25.9 7s * 1743 748 41 1169.0000000 1158.17438 0.93% 24.7 9s 1962 832 1160.76233 24 92 1169.00000 1158.39105 0.91% 24.4 10s * 2039 795 39 1168.0000000 1158.43210 0.82% 24.3 10s * 2891 1056 31 1167.0000000 1159.41000 0.65% 23.2 12s 3081 1132 1159.49367 36 86 1167.00000 1159.49367 0.64% 23.4 15s 5134 1377 1162.29493 35 88 1167.00000 1159.54464 0.64% 22.8 20s 7600 1686 1164.27664 40 93 1167.00000 1160.86983 0.53% 21.7 25s 10097 2176 cutoff 40 1167.00000 1161.64103 0.46% 21.0 30s 13009 2331 1165.92718 39 81 1167.00000 1162.41755 0.39% 20.5 35s 16290 2214 1164.36667 36 89 1167.00000 1163.16667 0.33% 20.0 40s *16982 1686 46 1166.0000000 1163.33333 0.23% 19.9 40s Cutting planes: Gomory: 5 Zero half: 19 Explored 19444 nodes (368659 simplex iterations) in 43.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(10, 51), (43, 65), (24, 50), (24, 57), (19, 56), (19, 25), (23, 62), (23, 63), (25, 50), (26, 51), (26, 56), (42, 43), (42, 57), (62, 65)] adding cut for [(37, 72), (37, 70), (29, 75), (16, 38), (16, 58), (21, 38), (21, 71), (22, 29), (22, 70), (61, 71), (61, 72)] adding cut for [(32, 40), (66, 67), (39, 66), (40, 73), (11, 32), (11, 39), (14, 55), (20, 55), (20, 60), (60, 67)] adding cut for [(9, 15), (12, 54), (12, 15)] Optimize a model with 579 rows, 2850 columns and 50507 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 578 rows, 2850 columns, 50452 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 271 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 85 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1173.0000000 1150.96667 1.88% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.85597 0 99 1171.00000 1152.85597 1.55% - 0s 0 0 1152.85597 0 84 1171.00000 1152.85597 1.55% - 0s 0 0 1152.90834 0 98 1171.00000 1152.90834 1.54% - 0s 0 0 1152.97277 0 101 1171.00000 1152.97277 1.54% - 0s 0 0 1153.02432 0 108 1171.00000 1153.02432 1.54% - 1s 0 0 1153.11061 0 106 1171.00000 1153.11061 1.53% - 1s 0 0 1153.32364 0 111 1171.00000 1153.32364 1.51% - 1s 0 0 1153.36555 0 107 1171.00000 1153.36555 1.51% - 1s 0 0 1153.38417 0 110 1171.00000 1153.38417 1.50% - 1s 0 0 1153.44499 0 109 1171.00000 1153.44499 1.50% - 1s 0 0 1153.49815 0 113 1171.00000 1153.49815 1.49% - 1s 0 0 1153.59469 0 113 1171.00000 1153.59469 1.49% - 1s 0 0 1153.61248 0 113 1171.00000 1153.61248 1.48% - 1s 0 0 1153.65158 0 115 1171.00000 1153.65158 1.48% - 1s 0 0 1153.67131 0 117 1171.00000 1153.67131 1.48% - 1s 0 0 1153.69445 0 117 1171.00000 1153.69445 1.48% - 1s 0 0 1153.70638 0 117 1171.00000 1153.70638 1.48% - 1s 0 0 1153.71493 0 112 1171.00000 1153.71493 1.48% - 1s 0 0 1153.71561 0 114 1171.00000 1153.71561 1.48% - 1s 0 0 1153.71561 0 113 1171.00000 1153.71561 1.48% - 1s 0 2 1153.71704 0 113 1171.00000 1153.71704 1.48% - 1s 615 463 1168.95238 35 112 1171.00000 1155.21372 1.35% 21.6 5s * 833 540 50 1170.0000000 1155.67187 1.22% 24.3 6s * 960 553 43 1169.0000000 1155.83784 1.13% 24.4 6s 2409 1050 1167.35000 42 75 1169.00000 1158.91729 0.86% 23.3 10s H 2573 1048 1168.0000000 1159.00745 0.77% 23.2 10s * 2961 1082 42 1167.0000000 1159.42532 0.65% 23.1 11s 3472 1215 1159.50756 28 101 1167.00000 1159.50756 0.64% 23.7 15s 5614 1275 1165.07273 38 79 1167.00000 1159.92308 0.61% 23.0 20s 7942 1520 1164.25000 33 65 1167.00000 1161.20976 0.50% 22.2 25s *10364 1648 42 1166.0000000 1162.00000 0.34% 21.4 29s 10589 1648 1164.55556 44 70 1166.00000 1162.08065 0.34% 21.3 30s 13820 1119 1164.58904 35 80 1166.00000 1163.38243 0.22% 20.5 35s Cutting planes: Gomory: 5 Zero half: 15 Explored 15747 nodes (308041 simplex iterations) in 37.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.166000000000e+03, best bound 1.166000000000e+03, gap 0.0% adding cut for [(70, 72), (42, 44), (42, 57), (43, 65), (43, 44), (14, 58), (16, 38), (16, 58), (17, 24), (21, 38), (21, 71), (22, 70), (22, 62), (24, 57), (61, 71), (61, 72), (62, 65)] adding cut for [(2, 64), (2, 34), (32, 56), (11, 32), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(66, 67), (39, 66), (39, 59), (20, 55), (20, 60), (60, 67)] Optimize a model with 582 rows, 2850 columns and 50736 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 581 rows, 2850 columns, 50681 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 306 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 84 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1174.0000000 1150.96667 1.96% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.85597 0 99 1171.00000 1152.85597 1.55% - 0s 0 0 1152.85597 0 85 1171.00000 1152.85597 1.55% - 0s 0 0 1152.96056 0 99 1171.00000 1152.96056 1.54% - 0s 0 0 1153.09574 0 105 1171.00000 1153.09574 1.53% - 0s 0 0 1153.17890 0 102 1171.00000 1153.17890 1.52% - 0s 0 0 1153.27515 0 101 1171.00000 1153.27515 1.51% - 0s 0 0 1153.31512 0 100 1171.00000 1153.31512 1.51% - 0s 0 0 1153.36930 0 104 1171.00000 1153.36930 1.51% - 0s 0 0 1153.41023 0 104 1171.00000 1153.41023 1.50% - 1s 0 0 1153.44735 0 113 1171.00000 1153.44735 1.50% - 1s 0 0 1153.54633 0 111 1171.00000 1153.54633 1.49% - 1s 0 0 1153.56973 0 110 1171.00000 1153.56973 1.49% - 1s 0 0 1153.57118 0 114 1171.00000 1153.57118 1.49% - 1s 0 0 1153.57543 0 115 1171.00000 1153.57543 1.49% - 1s 0 2 1153.57544 0 115 1171.00000 1153.57544 1.49% - 1s * 402 306 74 1170.0000000 1154.95128 1.29% 20.9 2s 613 451 1163.20000 20 117 1170.00000 1155.37255 1.25% 18.9 5s * 1704 664 59 1167.0000000 1157.15027 0.84% 21.5 8s 2309 910 1157.94139 28 69 1167.00000 1157.66589 0.80% 21.2 10s 4683 2016 1164.00000 35 63 1167.00000 1159.20000 0.67% 20.2 15s 7274 3002 1162.84245 36 84 1167.00000 1159.95833 0.60% 19.7 20s 9775 3791 1164.61670 31 76 1167.00000 1160.63636 0.55% 19.4 25s 12691 4515 1162.21875 27 77 1167.00000 1161.17966 0.50% 19.1 30s 15702 5029 1162.82126 30 80 1167.00000 1161.64858 0.46% 18.9 35s 19288 5442 1165.36885 29 93 1167.00000 1162.11429 0.42% 18.6 40s 23109 5604 1165.58523 30 82 1167.00000 1162.52941 0.38% 18.3 45s 27193 5431 cutoff 32 1167.00000 1162.96930 0.35% 18.0 50s 30829 4939 1166.00000 28 83 1167.00000 1163.33333 0.31% 17.8 55s 34832 4027 cutoff 27 1167.00000 1163.80000 0.27% 17.6 60s 38482 2870 1165.50000 32 38 1167.00000 1164.27985 0.23% 17.4 65s Cutting planes: Gomory: 7 MIR: 1 Zero half: 16 Explored 43383 nodes (727663 simplex iterations) in 69.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (22, 48), (22, 29), (42, 44), (42, 57), (43, 65), (43, 44), (12, 66), (12, 54), (48, 49), (24, 64), (24, 57), (50, 64), (25, 50), (26, 51), (26, 56), (29, 65)] adding cut for [(6, 38), (21, 38), (21, 71), (23, 63), (23, 62), (61, 71), (61, 72), (62, 70), (37, 72), (37, 70)] adding cut for [(60, 67), (39, 67), (15, 36), (15, 60)] Optimize a model with 585 rows, 2850 columns and 51011 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 584 rows, 2850 columns, 50956 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 276 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 85 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1182.0000000 1150.96667 2.63% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.39947 0 98 1171.00000 1152.39947 1.59% - 0s 0 0 1152.39947 0 84 1171.00000 1152.39947 1.59% - 0s 0 0 1152.97768 0 100 1171.00000 1152.97768 1.54% - 0s 0 0 1153.02790 0 105 1171.00000 1153.02790 1.53% - 0s 0 0 1153.28808 0 99 1171.00000 1153.28808 1.51% - 0s 0 0 1153.30526 0 108 1171.00000 1153.30526 1.51% - 0s 0 0 1153.41506 0 112 1171.00000 1153.41506 1.50% - 0s 0 0 1153.46993 0 111 1171.00000 1153.46993 1.50% - 0s 0 0 1153.48962 0 113 1171.00000 1153.48962 1.50% - 0s 0 0 1153.51552 0 114 1171.00000 1153.51552 1.49% - 0s 0 0 1153.55453 0 112 1171.00000 1153.55453 1.49% - 0s 0 0 1153.61876 0 115 1171.00000 1153.61876 1.48% - 0s 0 0 1153.72451 0 111 1171.00000 1153.72451 1.48% - 0s 0 0 1153.75591 0 114 1171.00000 1153.75591 1.47% - 0s 0 0 1153.78107 0 114 1171.00000 1153.78107 1.47% - 1s 0 0 1153.78144 0 115 1171.00000 1153.78144 1.47% - 1s 0 0 1153.79332 0 114 1171.00000 1153.79332 1.47% - 1s 0 0 1153.81770 0 113 1171.00000 1153.81770 1.47% - 1s 0 0 1153.82503 0 115 1171.00000 1153.82503 1.47% - 1s 0 0 1153.82568 0 115 1171.00000 1153.82568 1.47% - 1s 0 0 1153.82568 0 115 1171.00000 1153.82568 1.47% - 1s 0 2 1153.83248 0 115 1171.00000 1153.83248 1.47% - 1s * 350 248 39 1170.0000000 1154.81322 1.30% 24.0 2s 610 401 1166.13889 23 117 1170.00000 1156.12376 1.19% 23.4 5s H 1210 510 1168.0000000 1157.42608 0.91% 26.2 8s 1894 669 1161.53154 24 100 1168.00000 1158.88064 0.78% 25.9 10s * 2299 772 35 1167.0000000 1159.29189 0.66% 25.0 10s 4049 1254 1165.90476 31 87 1167.00000 1160.67769 0.54% 24.1 15s 6632 1707 1164.19355 29 74 1167.00000 1161.85217 0.44% 22.8 20s 9363 1894 1164.99074 22 94 1167.00000 1162.80000 0.36% 21.8 25s 12319 1652 1165.25000 35 65 1167.00000 1163.64000 0.29% 21.1 30s 15529 653 1165.43911 25 77 1167.00000 1164.78261 0.19% 20.3 35s Cutting planes: Gomory: 5 Zero half: 19 Explored 16463 nodes (325900 simplex iterations) in 36.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(2, 74), (2, 23), (33, 51), (43, 65), (43, 44), (19, 56), (19, 25), (25, 50), (23, 65), (24, 50), (24, 57), (26, 51), (26, 56), (42, 44), (42, 57)] adding cut for [(70, 72), (29, 62), (29, 63), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(66, 67), (39, 66), (60, 67), (14, 55), (14, 28), (20, 60), (20, 55)] Optimize a model with 588 rows, 2850 columns and 51214 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 587 rows, 2850 columns, 51159 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 280 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 84 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1177.0000000 1150.96667 2.21% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.85597 0 99 1171.00000 1152.85597 1.55% - 0s 0 0 1152.85597 0 84 1171.00000 1152.85597 1.55% - 0s 0 0 1152.90834 0 98 1171.00000 1152.90834 1.54% - 0s 0 0 1152.97277 0 101 1171.00000 1152.97277 1.54% - 0s 0 0 1153.01579 0 103 1171.00000 1153.01579 1.54% - 0s 0 0 1153.19998 0 106 1171.00000 1153.19998 1.52% - 0s 0 0 1153.31124 0 112 1171.00000 1153.31124 1.51% - 0s 0 0 1153.35262 0 107 1171.00000 1153.35262 1.51% - 0s 0 0 1153.35893 0 107 1171.00000 1153.35893 1.51% - 0s 0 0 1153.42641 0 109 1171.00000 1153.42641 1.50% - 0s 0 0 1153.59713 0 113 1171.00000 1153.59713 1.49% - 0s 0 0 1153.61283 0 115 1171.00000 1153.61283 1.48% - 1s 0 0 1153.61729 0 114 1171.00000 1153.61729 1.48% - 1s 0 0 1153.63861 0 112 1171.00000 1153.63861 1.48% - 1s 0 0 1153.67339 0 115 1171.00000 1153.67339 1.48% - 1s 0 0 1153.67370 0 115 1171.00000 1153.67370 1.48% - 1s 0 0 1153.68139 0 119 1171.00000 1153.68139 1.48% - 1s 0 0 1153.68139 0 119 1171.00000 1153.68139 1.48% - 1s 0 2 1153.68967 0 119 1171.00000 1153.68967 1.48% - 1s * 312 190 50 1167.0000000 1155.19353 1.01% 22.2 2s 611 354 1160.66667 17 117 1167.00000 1155.86735 0.95% 22.2 5s 2598 1049 1161.28481 30 86 1167.00000 1159.00000 0.69% 22.7 10s 4944 1915 1163.53571 33 84 1167.00000 1160.29762 0.57% 21.2 15s 7433 2610 1164.40642 33 69 1167.00000 1161.04180 0.51% 20.5 20s 9887 3105 1166.00000 30 53 1167.00000 1161.53810 0.47% 20.0 25s 12680 3523 1165.64286 38 72 1167.00000 1162.02107 0.43% 19.7 30s 15780 3791 1165.33333 30 69 1167.00000 1162.50000 0.39% 19.3 35s 19413 3938 1164.61538 28 72 1167.00000 1162.91304 0.35% 18.9 40s 23163 3837 1165.84211 29 79 1167.00000 1163.31522 0.32% 18.4 45s 27540 3357 cutoff 27 1167.00000 1163.77465 0.28% 17.9 50s 31884 2269 1165.32597 31 85 1167.00000 1164.36593 0.23% 17.5 55s Cutting planes: Gomory: 2 MIR: 2 Zero half: 17 Explored 36208 nodes (609285 simplex iterations) in 59.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(70, 72), (42, 44), (42, 57), (43, 65), (43, 44), (16, 38), (16, 58), (17, 24), (21, 38), (21, 71), (22, 70), (22, 62), (23, 65), (23, 62), (24, 57), (28, 58), (61, 71), (61, 72)] adding cut for [(2, 64), (2, 74), (4, 45), (34, 74), (45, 51), (50, 64), (19, 51), (19, 25), (25, 50)] adding cut for [(32, 56), (10, 40), (10, 26), (11, 32), (11, 59), (26, 56)] adding cut for [(66, 67), (39, 66), (14, 55), (20, 55), (20, 60), (60, 67)] Optimize a model with 592 rows, 2850 columns and 51472 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 591 rows, 2850 columns, 51417 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.150967e+03, 287 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1150.96667 0 84 2864.00000 1150.96667 59.8% - 0s Another try with MIP start H 0 0 1178.0000000 1150.96667 2.29% - 0s H 0 0 1171.0000000 1150.96667 1.71% - 0s 0 0 1152.54982 0 99 1171.00000 1152.54982 1.58% - 0s 0 0 1152.54982 0 84 1171.00000 1152.54982 1.58% - 0s 0 0 1152.97768 0 99 1171.00000 1152.97768 1.54% - 0s 0 0 1153.09239 0 103 1171.00000 1153.09239 1.53% - 0s 0 0 1153.17722 0 102 1171.00000 1153.17722 1.52% - 0s 0 0 1153.27805 0 102 1171.00000 1153.27805 1.51% - 0s 0 0 1153.33160 0 103 1171.00000 1153.33160 1.51% - 0s 0 0 1153.40823 0 109 1171.00000 1153.40823 1.50% - 0s 0 0 1153.54701 0 109 1171.00000 1153.54701 1.49% - 1s 0 0 1153.59732 0 113 1171.00000 1153.59732 1.49% - 1s 0 0 1153.64922 0 108 1171.00000 1153.64922 1.48% - 1s 0 0 1153.67621 0 115 1171.00000 1153.67621 1.48% - 1s 0 0 1153.69793 0 116 1171.00000 1153.69793 1.48% - 1s 0 0 1153.71944 0 112 1171.00000 1153.71944 1.48% - 1s 0 0 1153.72313 0 119 1171.00000 1153.72313 1.48% - 1s 0 0 1153.74280 0 118 1171.00000 1153.74280 1.47% - 1s 0 0 1153.76983 0 114 1171.00000 1153.76983 1.47% - 1s 0 0 1153.84784 0 110 1171.00000 1153.84784 1.46% - 1s 0 0 1153.86255 0 114 1171.00000 1153.86255 1.46% - 1s 0 0 1153.87787 0 116 1171.00000 1153.87787 1.46% - 1s 0 0 1153.91624 0 116 1171.00000 1153.91624 1.46% - 1s 0 2 1153.93770 0 116 1171.00000 1153.93770 1.46% - 1s 610 452 1161.23438 16 110 1171.00000 1155.13396 1.35% 21.3 5s * 1071 598 41 1170.0000000 1156.45139 1.16% 24.4 7s 1931 845 1164.04615 36 89 1170.00000 1158.19675 1.01% 23.5 10s * 2003 854 34 1169.0000000 1158.25000 0.92% 23.5 10s * 2070 804 25 1168.0000000 1158.37819 0.82% 23.5 10s H 2233 792 1167.0000000 1158.70861 0.71% 23.5 11s 3988 1476 1162.65126 23 89 1167.00000 1159.77500 0.62% 23.0 15s 6049 2058 1164.08333 33 76 1167.00000 1160.67089 0.54% 22.3 20s 8254 2567 1164.26797 32 74 1167.00000 1161.25000 0.49% 21.6 25s 10644 2997 1165.86667 32 84 1167.00000 1161.72101 0.45% 21.3 30s 13457 3324 cutoff 24 1167.00000 1162.18750 0.41% 20.9 35s 16178 3521 1164.97436 32 82 1167.00000 1162.57895 0.38% 20.5 40s 19149 3591 1164.21148 30 85 1167.00000 1162.99281 0.34% 20.2 45s 22424 3446 1164.48746 30 90 1167.00000 1163.35714 0.31% 19.7 50s 26052 3062 cutoff 29 1167.00000 1163.75015 0.28% 19.2 55s 29923 2305 1165.65833 28 75 1167.00000 1164.25000 0.24% 18.8 60s 33966 555 cutoff 29 1167.00000 1165.23333 0.15% 18.1 65s Cutting planes: Gomory: 4 MIR: 1 Zero half: 36 Explored 34691 nodes (621028 simplex iterations) in 65.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 50), (25, 50), (24, 25), (24, 57), (23, 65), (23, 63)] adding cut for [(6, 38), (21, 38), (21, 71), (61, 71), (61, 72), (62, 75), (62, 70), (37, 72), (37, 70)] adding cut for [(4, 45), (11, 32), (11, 73), (45, 51), (19, 51), (19, 56), (26, 32), (26, 56)] adding cut for [(2, 64), (2, 74), (34, 64), (48, 49), (22, 48), (22, 29), (29, 74)] adding cut for [(12, 66), (12, 54), (39, 66), (39, 59)] adding cut for [(60, 67), (15, 36), (15, 60)] Optimize a model with 598 rows, 2850 columns and 51652 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 597 rows, 2850 columns, 51597 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 248 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1176.0000000 1151.05284 2.12% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.66867 0 95 1171.00000 1152.66867 1.57% - 0s 0 0 1152.66867 0 84 1171.00000 1152.66867 1.57% - 0s 0 0 1152.80666 0 94 1171.00000 1152.80666 1.55% - 0s 0 0 1153.02156 0 102 1171.00000 1153.02156 1.54% - 0s 0 0 1153.32351 0 105 1171.00000 1153.32351 1.51% - 0s 0 0 1153.34822 0 105 1171.00000 1153.34822 1.51% - 0s 0 0 1153.42691 0 97 1171.00000 1153.42691 1.50% - 0s 0 0 1153.47638 0 112 1171.00000 1153.47638 1.50% - 0s 0 0 1153.56121 0 111 1171.00000 1153.56121 1.49% - 0s 0 0 1153.57683 0 111 1171.00000 1153.57683 1.49% - 1s 0 0 1153.62511 0 114 1171.00000 1153.62511 1.48% - 1s 0 0 1153.64278 0 116 1171.00000 1153.64278 1.48% - 1s 0 0 1153.66266 0 115 1171.00000 1153.66266 1.48% - 1s 0 0 1153.67286 0 120 1171.00000 1153.67286 1.48% - 1s 0 0 1153.70204 0 107 1171.00000 1153.70204 1.48% - 1s 0 0 1153.70311 0 110 1171.00000 1153.70311 1.48% - 1s 0 0 1153.70487 0 115 1171.00000 1153.70487 1.48% - 1s 0 0 1153.72420 0 107 1171.00000 1153.72420 1.48% - 1s 0 0 1153.73583 0 111 1171.00000 1153.73583 1.47% - 1s 0 0 1153.73709 0 110 1171.00000 1153.73709 1.47% - 1s 0 0 1153.73869 0 113 1171.00000 1153.73869 1.47% - 1s 0 0 1153.78335 0 109 1171.00000 1153.78335 1.47% - 1s 0 0 1153.80516 0 111 1171.00000 1153.80516 1.47% - 1s 0 0 1153.80734 0 112 1171.00000 1153.80734 1.47% - 1s 0 2 1153.82973 0 112 1171.00000 1153.82973 1.47% - 1s 609 409 1166.98718 29 109 1171.00000 1156.12093 1.27% 21.7 5s * 926 491 49 1170.0000000 1156.16304 1.18% 25.0 7s 1805 743 1157.95670 22 88 1170.00000 1157.57721 1.06% 24.7 10s * 1899 762 43 1169.0000000 1157.69635 0.97% 24.5 10s * 3020 1242 44 1168.0000000 1158.65000 0.80% 23.9 12s * 3239 1205 36 1167.0000000 1158.88205 0.70% 23.9 13s 3989 1445 1160.35000 29 87 1167.00000 1159.38821 0.65% 23.7 15s 6017 1990 1165.78182 37 75 1167.00000 1160.34615 0.57% 23.0 20s 8288 2433 1165.91852 33 86 1167.00000 1160.99265 0.51% 22.4 25s 10736 2831 1164.60714 30 63 1167.00000 1161.62327 0.46% 21.9 30s 13586 3137 1164.07151 28 82 1167.00000 1162.13198 0.42% 21.4 35s 16375 3326 1164.73801 37 89 1167.00000 1162.62500 0.37% 21.0 40s 19664 3313 1165.73223 31 89 1167.00000 1163.06349 0.34% 20.4 45s 23485 2887 1164.56889 32 77 1167.00000 1163.62429 0.29% 19.8 50s 27219 1989 1165.43939 29 88 1167.00000 1164.23333 0.24% 19.3 55s Cutting planes: Gomory: 5 Zero half: 17 Explored 31010 nodes (574085 simplex iterations) in 59.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(2, 23), (32, 67), (32, 56), (9, 20), (42, 44), (42, 57), (43, 65), (43, 44), (15, 60), (15, 20), (50, 64), (19, 51), (19, 25), (25, 50), (23, 65), (24, 64), (24, 57), (26, 51), (26, 56), (60, 67)] adding cut for [(37, 72), (37, 70), (14, 55), (14, 28), (29, 62), (29, 63), (16, 38), (16, 58), (21, 38), (21, 71), (22, 70), (22, 62), (55, 58), (61, 71), (61, 72)] Optimize a model with 600 rows, 2850 columns and 51982 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 599 rows, 2850 columns, 51927 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 281 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1183.0000000 1151.05284 2.70% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.54093 0 93 1171.00000 1152.54093 1.58% - 0s 0 0 1152.54093 0 84 1171.00000 1152.54093 1.58% - 0s 0 0 1152.80324 0 94 1171.00000 1152.80324 1.55% - 0s 0 0 1153.01908 0 102 1171.00000 1153.01908 1.54% - 0s 0 0 1153.28669 0 101 1171.00000 1153.28669 1.51% - 0s 0 0 1153.33494 0 107 1171.00000 1153.33494 1.51% - 0s 0 0 1153.36289 0 112 1171.00000 1153.36289 1.51% - 0s 0 0 1153.46648 0 110 1171.00000 1153.46648 1.50% - 0s 0 0 1153.47877 0 114 1171.00000 1153.47877 1.50% - 0s 0 0 1153.50094 0 112 1171.00000 1153.50094 1.49% - 1s 0 0 1153.51361 0 110 1171.00000 1153.51361 1.49% - 1s 0 0 1153.51615 0 113 1171.00000 1153.51615 1.49% - 1s 0 0 1153.62380 0 113 1171.00000 1153.62380 1.48% - 1s 0 0 1153.70286 0 112 1171.00000 1153.70286 1.48% - 1s 0 0 1153.77627 0 112 1171.00000 1153.77627 1.47% - 1s 0 0 1153.81324 0 113 1171.00000 1153.81324 1.47% - 1s 0 0 1153.81472 0 113 1171.00000 1153.81472 1.47% - 1s 0 0 1153.81551 0 114 1171.00000 1153.81551 1.47% - 1s 0 2 1153.81552 0 114 1171.00000 1153.81552 1.47% - 1s 611 474 1163.51844 5 116 1171.00000 1155.89438 1.29% 23.9 5s * 1079 637 40 1170.0000000 1156.19967 1.18% 26.2 7s * 1146 592 36 1169.0000000 1157.00097 1.03% 26.0 7s 2142 890 1159.91433 23 96 1169.00000 1158.50000 0.90% 24.5 10s * 2154 816 32 1168.0000000 1158.50000 0.81% 24.5 10s * 3392 1248 30 1167.0000000 1159.49091 0.64% 23.6 13s 4246 1520 1162.16667 27 87 1167.00000 1160.06000 0.59% 23.1 15s 6629 2184 1162.78801 33 88 1167.00000 1160.90562 0.52% 22.2 20s 9168 2706 1162.52101 27 88 1167.00000 1161.51429 0.47% 21.4 25s 11957 3137 1164.33094 32 66 1167.00000 1162.04478 0.42% 20.9 30s 14756 3356 1165.92581 35 78 1167.00000 1162.50000 0.39% 20.5 35s 17766 3379 1165.92407 33 88 1167.00000 1162.93227 0.35% 20.1 40s 21410 3119 1164.73858 29 88 1167.00000 1163.38123 0.31% 19.6 45s 25457 2540 cutoff 32 1167.00000 1163.90476 0.27% 19.1 50s 29265 1452 cutoff 41 1167.00000 1164.56835 0.21% 18.5 55s Cutting planes: Gomory: 6 MIR: 1 Zero half: 15 Explored 31690 nodes (569677 simplex iterations) in 57.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(4, 25), (42, 44), (42, 57), (43, 65), (43, 44), (22, 75), (22, 49), (24, 50), (24, 57), (25, 50), (29, 75), (23, 65), (23, 29)] adding cut for [(32, 67), (33, 45), (45, 51), (15, 60), (19, 51), (19, 56), (26, 32), (26, 56), (60, 67)] adding cut for [(37, 38), (37, 48), (21, 38), (21, 71), (70, 72), (61, 71), (61, 72), (62, 70), (62, 63)] adding cut for [(11, 39), (12, 66), (12, 54), (39, 66)] Optimize a model with 604 rows, 2850 columns and 52173 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 603 rows, 2850 columns, 52118 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 278 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1170.0000000 1151.05284 1.62% - 0s 0 0 1152.52498 0 93 1170.00000 1152.52498 1.49% - 0s 0 0 1152.52498 0 84 1170.00000 1152.52498 1.49% - 0s 0 0 1152.63904 0 97 1170.00000 1152.63904 1.48% - 0s 0 0 1153.19705 0 103 1170.00000 1153.19705 1.44% - 0s 0 0 1153.34563 0 110 1170.00000 1153.34563 1.42% - 0s 0 0 1153.37464 0 109 1170.00000 1153.37464 1.42% - 0s 0 0 1153.48867 0 104 1170.00000 1153.48867 1.41% - 1s 0 0 1153.54986 0 109 1170.00000 1153.54986 1.41% - 1s 0 0 1153.62512 0 114 1170.00000 1153.62512 1.40% - 1s 0 0 1153.66285 0 115 1170.00000 1153.66285 1.40% - 1s 0 0 1153.73251 0 111 1170.00000 1153.73251 1.39% - 1s 0 0 1153.78629 0 113 1170.00000 1153.78629 1.39% - 1s 0 0 1153.91725 0 108 1170.00000 1153.91725 1.37% - 1s 0 0 1153.93270 0 116 1170.00000 1153.93270 1.37% - 1s 0 0 1153.94249 0 118 1170.00000 1153.94249 1.37% - 1s 0 0 1153.94288 0 119 1170.00000 1153.94288 1.37% - 1s 0 0 1153.95513 0 114 1170.00000 1153.95513 1.37% - 1s 0 0 1153.95768 0 112 1170.00000 1153.95768 1.37% - 1s 0 2 1153.95814 0 112 1170.00000 1153.95814 1.37% - 1s 610 457 1164.62069 21 112 1170.00000 1155.20837 1.26% 21.5 5s H 1346 663 1169.0000000 1157.35593 1.00% 24.4 8s 1777 748 1159.78250 22 86 1169.00000 1158.69150 0.88% 23.5 10s 3783 1761 1162.66667 20 86 1169.00000 1160.00000 0.77% 21.7 15s * 4663 2008 38 1168.0000000 1160.49767 0.64% 21.3 16s 6110 2533 1165.07105 23 91 1168.00000 1160.89499 0.61% 20.9 20s 8353 3305 1166.59158 29 80 1168.00000 1161.55285 0.55% 20.5 25s * 9061 2996 31 1167.0000000 1161.75463 0.45% 20.4 27s 10566 3145 1164.86422 26 87 1167.00000 1162.10000 0.42% 20.3 30s 13282 3290 1164.02676 19 82 1167.00000 1162.71429 0.37% 20.1 35s 15990 3122 1164.64903 18 91 1167.00000 1163.32323 0.32% 19.8 40s 18892 2686 1165.70339 34 77 1167.00000 1163.95906 0.26% 19.4 45s 22124 1578 1165.00000 24 58 1167.00000 1164.77698 0.19% 18.9 50s Cutting planes: Gomory: 12 MIR: 2 Zero half: 39 Mod-K: 1 Explored 24414 nodes (439771 simplex iterations) in 52.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (12, 67), (34, 64), (34, 74), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56), (63, 74)] adding cut for [(2, 44), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (21, 71), (21, 38), (23, 65), (23, 62), (38, 49), (61, 71), (61, 72), (62, 70)] adding cut for [(36, 54), (6, 16), (6, 30), (14, 55), (14, 58), (15, 54), (15, 60), (16, 58), (20, 36), (55, 60)] Optimize a model with 607 rows, 2850 columns and 52453 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 606 rows, 2850 columns, 52398 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 340 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 85 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1174.0000000 1151.05284 1.95% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.48891 0 95 1171.00000 1152.48891 1.58% - 0s 0 0 1152.48891 0 84 1171.00000 1152.48891 1.58% - 0s 0 0 1152.80324 0 94 1171.00000 1152.80324 1.55% - 0s 0 0 1153.01908 0 102 1171.00000 1153.01908 1.54% - 0s 0 0 1153.30620 0 104 1171.00000 1153.30620 1.51% - 0s 0 0 1153.47457 0 107 1171.00000 1153.47457 1.50% - 0s 0 0 1153.49130 0 107 1171.00000 1153.49130 1.50% - 0s 0 0 1153.49989 0 114 1171.00000 1153.49989 1.49% - 0s 0 0 1153.50718 0 112 1171.00000 1153.50718 1.49% - 0s 0 0 1153.51168 0 113 1171.00000 1153.51168 1.49% - 1s 0 0 1153.51473 0 114 1171.00000 1153.51473 1.49% - 1s 0 0 1153.51473 0 114 1171.00000 1153.51473 1.49% - 1s 0 2 1153.51722 0 114 1171.00000 1153.51722 1.49% - 1s 613 436 1166.00000 20 115 1171.00000 1155.72093 1.30% 24.6 5s * 686 435 50 1168.0000000 1155.72093 1.05% 26.0 5s H 993 491 1167.0000000 1156.11134 0.93% 26.9 7s 2070 671 1165.14286 24 84 1167.00000 1159.05945 0.68% 25.7 10s 4260 1306 1162.47978 23 88 1167.00000 1160.73626 0.54% 23.6 15s 6746 1680 1166.00000 30 75 1167.00000 1161.81437 0.44% 22.3 20s 9312 1743 1166.00000 31 68 1167.00000 1162.74286 0.36% 21.2 25s 12442 1402 cutoff 26 1167.00000 1163.75000 0.28% 20.4 30s Cutting planes: Gomory: 5 Zero half: 15 Explored 15605 nodes (300779 simplex iterations) in 34.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (70, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (16, 38), (16, 58), (21, 38), (21, 71), (23, 65), (23, 62), (24, 44), (24, 57), (62, 70)] adding cut for [(32, 39), (32, 56), (17, 64), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(36, 54), (9, 36), (14, 55), (15, 54), (15, 60), (20, 55), (20, 60)] adding cut for [(66, 67), (11, 59), (11, 66), (12, 67)] Optimize a model with 611 rows, 2850 columns and 52689 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 610 rows, 2850 columns, 52634 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 340 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1182.0000000 1151.05284 2.62% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.48891 0 95 1171.00000 1152.48891 1.58% - 0s 0 0 1152.48891 0 84 1171.00000 1152.48891 1.58% - 0s 0 0 1152.80324 0 94 1171.00000 1152.80324 1.55% - 0s 0 0 1153.01908 0 102 1171.00000 1153.01908 1.54% - 0s 0 0 1153.30620 0 104 1171.00000 1153.30620 1.51% - 0s 0 0 1153.47457 0 107 1171.00000 1153.47457 1.50% - 0s 0 0 1153.49130 0 107 1171.00000 1153.49130 1.50% - 0s 0 0 1153.49989 0 114 1171.00000 1153.49989 1.49% - 0s 0 0 1153.50789 0 113 1171.00000 1153.50789 1.49% - 0s 0 0 1153.51263 0 116 1171.00000 1153.51263 1.49% - 1s 0 0 1153.51496 0 114 1171.00000 1153.51496 1.49% - 1s 0 0 1153.52507 0 116 1171.00000 1153.52507 1.49% - 1s 0 0 1153.54055 0 110 1171.00000 1153.54055 1.49% - 1s 0 0 1153.57295 0 109 1171.00000 1153.57295 1.49% - 1s 0 0 1153.58004 0 114 1171.00000 1153.58004 1.49% - 1s 0 0 1153.58049 0 114 1171.00000 1153.58049 1.49% - 1s 0 2 1153.58069 0 114 1171.00000 1153.58069 1.49% - 1s 612 453 1160.95833 12 111 1171.00000 1155.54772 1.32% 23.6 5s 1732 822 1160.55678 24 86 1171.00000 1157.75832 1.13% 24.7 10s H 1994 779 1169.0000000 1158.25641 0.92% 24.3 10s 3788 1622 cutoff 32 1169.00000 1159.97961 0.77% 22.9 15s * 6053 1936 29 1167.0000000 1160.96000 0.52% 21.7 19s 6357 2008 1161.88112 22 76 1167.00000 1161.06250 0.51% 21.7 20s 8565 2316 1162.50926 26 85 1167.00000 1161.80392 0.45% 21.2 25s 10814 2530 1166.00000 30 61 1167.00000 1162.39752 0.39% 20.8 30s 13745 2549 1164.26667 33 67 1167.00000 1163.00000 0.34% 20.4 35s 16811 2261 1163.93750 23 94 1167.00000 1163.65000 0.29% 19.9 40s 19939 1549 1164.50794 27 85 1167.00000 1164.39024 0.22% 19.4 45s Cutting planes: Gomory: 5 Zero half: 18 Explored 22776 nodes (421455 simplex iterations) in 48.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(70, 72), (42, 43), (42, 57), (43, 65), (14, 58), (16, 38), (16, 58), (17, 24), (21, 38), (21, 71), (23, 65), (23, 62), (24, 57), (61, 71), (61, 72), (62, 70)] adding cut for [(2, 44), (2, 34), (32, 66), (32, 56), (12, 66), (12, 54), (44, 64), (50, 64), (19, 51), (19, 25), (25, 50), (26, 51), (26, 56)] adding cut for [(39, 67), (15, 20), (15, 60), (20, 55), (60, 67)] Optimize a model with 614 rows, 2850 columns and 52931 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 613 rows, 2850 columns, 52876 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 340 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 85 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1172.0000000 1151.05284 1.79% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.48891 0 95 1171.00000 1152.48891 1.58% - 0s 0 0 1152.48891 0 84 1171.00000 1152.48891 1.58% - 0s 0 0 1152.80324 0 94 1171.00000 1152.80324 1.55% - 0s 0 0 1153.01908 0 102 1171.00000 1153.01908 1.54% - 0s 0 0 1153.30620 0 104 1171.00000 1153.30620 1.51% - 1s 0 0 1153.47457 0 107 1171.00000 1153.47457 1.50% - 1s 0 0 1153.49130 0 107 1171.00000 1153.49130 1.50% - 1s 0 0 1153.49989 0 114 1171.00000 1153.49989 1.49% - 1s 0 0 1153.50718 0 112 1171.00000 1153.50718 1.49% - 1s 0 0 1153.51168 0 113 1171.00000 1153.51168 1.49% - 1s 0 0 1153.51473 0 114 1171.00000 1153.51473 1.49% - 1s 0 0 1153.51473 0 114 1171.00000 1153.51473 1.49% - 1s 0 2 1153.51722 0 114 1171.00000 1153.51722 1.49% - 1s 616 448 1161.00000 13 111 1171.00000 1155.36212 1.34% 23.9 5s * 1171 591 34 1170.0000000 1156.80315 1.13% 26.7 7s 1994 848 1163.83333 22 82 1170.00000 1158.35180 1.00% 25.3 10s * 3574 1140 29 1167.0000000 1159.69902 0.63% 23.9 13s 4339 1350 1165.55556 35 68 1167.00000 1160.41096 0.56% 23.7 15s 6416 1654 1165.10309 24 71 1167.00000 1161.67037 0.46% 23.0 20s 8965 1785 cutoff 26 1167.00000 1162.63354 0.37% 22.0 25s 11881 1559 cutoff 24 1167.00000 1163.59259 0.29% 21.2 30s 15234 205 cutoff 23 1167.00000 1165.50000 0.13% 20.1 35s Cutting planes: Gomory: 5 Zero half: 15 Explored 15476 nodes (308228 simplex iterations) in 35.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 44), (43, 65), (61, 71), (61, 72), (21, 71), (21, 38), (22, 29), (22, 62), (23, 65), (23, 29), (6, 38), (62, 70), (63, 74)] adding cut for [(32, 66), (19, 51), (19, 25), (66, 67), (10, 32), (10, 26), (12, 67), (12, 54), (34, 64), (24, 64), (24, 57), (50, 57), (51, 56), (25, 50), (26, 56)] Optimize a model with 616 rows, 2850 columns and 53222 nonzeros Presolve time: 0.05s Presolved: 616 rows, 2850 columns, 53222 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 276 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 85 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1179.0000000 1151.05284 2.37% - 0s H 0 0 1171.0000000 1151.05284 1.70% - 0s 0 0 1152.69944 0 96 1171.00000 1152.69944 1.56% - 0s 0 0 1152.69944 0 84 1171.00000 1152.69944 1.56% - 0s 0 0 1152.83799 0 104 1171.00000 1152.83799 1.55% - 0s 0 0 1153.05873 0 105 1171.00000 1153.05873 1.53% - 0s 0 0 1153.25528 0 107 1171.00000 1153.25528 1.52% - 0s 0 0 1153.31312 0 110 1171.00000 1153.31312 1.51% - 0s 0 0 1153.36639 0 110 1171.00000 1153.36639 1.51% - 0s 0 0 1153.47145 0 109 1171.00000 1153.47145 1.50% - 0s 0 0 1153.49992 0 117 1171.00000 1153.49992 1.49% - 0s 0 0 1153.50570 0 117 1171.00000 1153.50570 1.49% - 1s 0 0 1153.51205 0 113 1171.00000 1153.51205 1.49% - 1s 0 0 1153.55041 0 109 1171.00000 1153.55041 1.49% - 1s 0 0 1153.59341 0 112 1171.00000 1153.59341 1.49% - 1s 0 0 1153.59521 0 113 1171.00000 1153.59521 1.49% - 1s 0 0 1153.68658 0 109 1171.00000 1153.68658 1.48% - 1s 0 0 1153.69821 0 111 1171.00000 1153.69821 1.48% - 1s 0 0 1153.71715 0 115 1171.00000 1153.71715 1.48% - 1s 0 0 1153.72588 0 116 1171.00000 1153.72588 1.48% - 1s 0 0 1153.73243 0 112 1171.00000 1153.73243 1.47% - 1s 0 0 1153.78415 0 112 1171.00000 1153.78415 1.47% - 1s 0 0 1153.79886 0 109 1171.00000 1153.79886 1.47% - 1s 0 0 1153.81369 0 110 1171.00000 1153.81369 1.47% - 1s 0 0 1153.81486 0 112 1171.00000 1153.81486 1.47% - 1s 0 0 1153.83424 0 112 1171.00000 1153.83424 1.47% - 1s 0 0 1153.84547 0 114 1171.00000 1153.84547 1.46% - 1s 0 0 1153.87332 0 111 1171.00000 1153.87332 1.46% - 1s 0 0 1153.89034 0 115 1171.00000 1153.89034 1.46% - 1s 0 0 1153.89265 0 112 1171.00000 1153.89265 1.46% - 1s 0 0 1153.89290 0 113 1171.00000 1153.89290 1.46% - 1s 0 0 1153.89290 0 113 1171.00000 1153.89290 1.46% - 1s 0 2 1153.89359 0 113 1171.00000 1153.89359 1.46% - 1s 605 475 1167.99355 50 110 1171.00000 1155.41411 1.33% 22.6 5s * 779 488 59 1169.0000000 1155.75333 1.13% 24.2 7s 1618 728 1162.32967 23 86 1169.00000 1158.45975 0.90% 23.1 10s 3806 1818 1165.43373 28 97 1169.00000 1160.13757 0.76% 21.0 15s * 5447 1947 32 1167.0000000 1160.87854 0.52% 20.6 18s 6359 2095 cutoff 29 1167.00000 1161.31667 0.49% 20.5 20s 8673 2367 1162.34815 29 71 1167.00000 1162.13636 0.42% 20.1 25s 11087 2471 1164.03226 34 78 1167.00000 1162.74202 0.36% 19.9 30s 13993 2279 1164.51057 31 96 1167.00000 1163.38615 0.31% 19.6 35s 17086 1645 1165.58667 28 78 1167.00000 1164.15000 0.24% 19.2 40s Cutting planes: Gomory: 3 MIR: 1 Zero half: 17 Explored 20178 nodes (369221 simplex iterations) in 43.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(36, 54), (70, 72), (14, 55), (14, 58), (15, 54), (15, 60), (16, 38), (16, 58), (20, 36), (21, 38), (21, 71), (55, 60), (61, 71), (61, 72), (37, 70), (37, 49)] adding cut for [(6, 48), (42, 44), (42, 57), (43, 65), (43, 44), (17, 24), (22, 48), (22, 29), (23, 65), (23, 62), (24, 57), (29, 62)] adding cut for [(32, 66), (32, 56), (19, 51), (19, 25), (66, 67), (12, 67), (50, 64), (25, 50), (26, 51), (26, 56)] Optimize a model with 619 rows, 2850 columns and 53491 nonzeros Presolve time: 0.05s Presolved: 619 rows, 2850 columns, 53491 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 291 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1184.0000000 1151.05284 2.78% - 0s H 0 0 1182.0000000 1151.05284 2.62% - 0s 0 0 1152.63097 0 104 1182.00000 1152.63097 2.48% - 0s 0 0 1152.63097 0 84 1182.00000 1152.63097 2.48% - 0s H 0 0 1177.0000000 1152.63097 2.07% - 0s 0 0 1152.84099 0 104 1177.00000 1152.84099 2.05% - 1s 0 0 1153.13439 0 101 1177.00000 1153.13439 2.03% - 1s 0 2 1153.63717 0 101 1177.00000 1153.63717 1.98% - 1s H 1 2 1174.0000000 1153.63717 1.73% 3.0 1s 185 143 1169.75000 31 75 1174.00000 1155.35067 1.59% 32.3 5s * 359 245 41 1171.0000000 1155.52532 1.32% 31.1 5s 1632 995 1167.90476 23 85 1171.00000 1158.94690 1.03% 25.6 10s * 1782 1032 28 1170.0000000 1159.12792 0.93% 25.5 10s * 2471 1219 45 1169.0000000 1159.31504 0.83% 25.8 14s 2568 1238 1164.43860 39 79 1169.00000 1159.31504 0.83% 25.6 15s 4408 1520 1166.21212 41 79 1169.00000 1160.00617 0.77% 24.0 20s * 5489 1382 39 1167.0000000 1160.62893 0.55% 23.4 22s 6852 1593 1164.03569 33 93 1167.00000 1161.31250 0.49% 22.9 25s 9145 1868 1164.55172 38 81 1167.00000 1162.06715 0.42% 22.3 30s 11495 1960 cutoff 35 1167.00000 1162.70588 0.37% 21.6 35s 14346 1723 cutoff 39 1167.00000 1163.41916 0.31% 21.0 40s 17591 1083 1165.53333 39 75 1167.00000 1164.31193 0.23% 20.3 45s Cutting planes: Gomory: 6 MIR: 2 Zero half: 10 Explored 19599 nodes (383752 simplex iterations) in 48.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(32, 56), (19, 51), (19, 25), (10, 32), (10, 40), (43, 65), (43, 44), (29, 75), (24, 57), (24, 25), (26, 51), (26, 56), (42, 44), (42, 57), (23, 65), (23, 29)] adding cut for [(37, 72), (37, 70), (12, 60), (15, 20), (15, 60), (16, 38), (16, 58), (20, 55), (21, 38), (21, 71), (22, 70), (22, 62), (55, 58), (61, 71), (61, 72), (62, 63)] adding cut for [(66, 67), (39, 66), (11, 39), (11, 73), (54, 67)] Optimize a model with 622 rows, 2850 columns and 53778 nonzeros Presolve time: 0.05s Presolved: 622 rows, 2850 columns, 53778 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 314 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1182.0000000 1151.05284 2.62% - 0s 0 0 1152.60034 0 109 1182.00000 1152.60034 2.49% - 0s 0 0 1152.60034 0 84 1182.00000 1152.60034 2.49% - 0s H 0 0 1177.0000000 1152.60034 2.07% - 0s 0 0 1152.78810 0 109 1177.00000 1152.78810 2.06% - 0s 0 0 1153.07454 0 103 1177.00000 1153.07454 2.03% - 1s 0 2 1153.56122 0 103 1177.00000 1153.56122 1.99% - 1s H 101 59 1173.0000000 1154.21477 1.60% 35.2 4s 189 128 1171.93694 29 91 1173.00000 1155.21614 1.52% 34.7 5s * 271 139 35 1168.0000000 1155.23119 1.09% 33.4 5s 861 419 1165.79310 49 70 1168.00000 1157.52577 0.90% 29.1 10s 2970 1131 1164.76739 43 86 1168.00000 1160.41304 0.65% 24.3 15s 5186 1809 1166.40385 40 84 1168.00000 1161.50000 0.56% 22.1 20s 7878 2424 1166.29299 35 84 1168.00000 1162.28440 0.49% 21.2 25s * 7968 2209 39 1167.0000000 1162.29224 0.40% 21.2 25s 10365 2346 1164.96239 40 86 1167.00000 1162.89796 0.35% 20.6 30s 13091 2216 1165.21053 40 72 1167.00000 1163.58333 0.29% 20.1 35s 16021 1685 1165.50427 44 75 1167.00000 1164.27322 0.23% 19.4 40s Cutting planes: Gomory: 7 Zero half: 16 Explored 19252 nodes (353563 simplex iterations) in 43.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.167000000000e+03, best bound 1.167000000000e+03, gap 0.0% adding cut for [(37, 70), (37, 48), (70, 72), (42, 44), (42, 57), (43, 65), (43, 44), (17, 50), (30, 38), (21, 71), (21, 38), (22, 48), (22, 62), (23, 65), (23, 62), (24, 50), (24, 57), (61, 71), (61, 72)] adding cut for [(32, 66), (32, 56), (66, 67), (4, 45), (4, 25), (33, 45), (12, 67), (19, 51), (19, 25), (26, 51), (26, 56)] adding cut for [(20, 60), (20, 36), (15, 60), (15, 54)] Optimize a model with 625 rows, 2850 columns and 54044 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 624 rows, 2850 columns, 53989 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151053e+03, 325 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.05284 0 84 2864.00000 1151.05284 59.8% - 0s Another try with MIP start H 0 0 1176.0000000 1151.05284 2.12% - 0s 0 0 1152.71427 0 109 1176.00000 1152.71427 1.98% - 0s 0 0 1152.71427 0 84 1176.00000 1152.71427 1.98% - 0s 0 0 1152.80513 0 111 1176.00000 1152.80513 1.97% - 0s 0 0 1153.09562 0 103 1176.00000 1153.09562 1.95% - 0s 0 0 1153.21062 0 115 1176.00000 1153.21062 1.94% - 1s 0 0 1153.42652 0 110 1176.00000 1153.42652 1.92% - 1s 0 0 1153.48154 0 115 1176.00000 1153.48154 1.91% - 1s 0 0 1153.59353 0 108 1176.00000 1153.59353 1.91% - 1s 0 0 1153.61554 0 112 1176.00000 1153.61554 1.90% - 1s 0 0 1153.62416 0 110 1176.00000 1153.62416 1.90% - 1s 0 0 1153.67197 0 113 1176.00000 1153.67197 1.90% - 1s 0 0 1153.71729 0 112 1176.00000 1153.71729 1.89% - 1s 0 0 1153.73743 0 110 1176.00000 1153.73743 1.89% - 1s 0 0 1153.76604 0 116 1176.00000 1153.76604 1.89% - 1s 0 0 1153.77489 0 117 1176.00000 1153.77489 1.89% - 1s 0 0 1153.77921 0 117 1176.00000 1153.77921 1.89% - 1s 0 0 1153.77976 0 118 1176.00000 1153.77976 1.89% - 1s 0 0 1153.77976 0 118 1176.00000 1153.77976 1.89% - 1s 0 2 1153.78272 0 118 1176.00000 1153.78272 1.89% - 1s * 378 308 68 1175.0000000 1155.45355 1.66% 20.7 2s 611 469 1172.00000 38 114 1175.00000 1155.48583 1.66% 20.8 5s * 703 476 59 1172.0000000 1155.48583 1.41% 23.2 5s * 775 472 51 1171.0000000 1155.48583 1.32% 23.9 6s * 776 429 52 1170.0000000 1155.48583 1.24% 23.9 6s 1326 624 1159.74142 36 90 1170.00000 1157.33261 1.08% 26.9 10s 3285 1417 1166.53815 42 89 1170.00000 1159.82000 0.87% 23.4 15s * 4154 1736 59 1169.0000000 1160.24461 0.75% 22.9 16s * 4605 1683 50 1168.0000000 1160.59375 0.63% 22.5 18s 5400 1951 1166.00000 44 80 1168.00000 1160.92500 0.61% 22.2 20s 8166 2704 1165.04762 58 66 1168.00000 1161.95283 0.52% 21.2 25s 10528 3127 1164.47692 39 81 1168.00000 1162.62427 0.46% 20.8 30s 13178 3509 1165.04724 41 83 1168.00000 1163.10000 0.42% 20.3 35s 16390 3760 1164.70000 36 78 1168.00000 1163.66667 0.37% 19.7 40s 19315 3759 1165.35664 38 85 1168.00000 1164.10526 0.33% 19.4 45s 23283 3425 cutoff 42 1168.00000 1164.62963 0.29% 18.8 50s 27578 2575 1166.71897 45 81 1168.00000 1165.23288 0.24% 18.2 55s 32286 392 cutoff 46 1168.00000 1166.48197 0.13% 17.3 60s Cutting planes: Gomory: 6 Zero half: 14 Explored 32733 nodes (562027 simplex iterations) in 60.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(32, 73), (32, 56), (19, 51), (19, 25), (40, 73), (10, 40), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(2, 44), (2, 34), (42, 43), (42, 44), (43, 65), (22, 75), (22, 70), (23, 65), (23, 29), (29, 62), (62, 70)] adding cut for [(37, 72), (37, 48), (48, 49), (21, 38), (21, 71), (61, 71), (61, 72), (30, 38)] adding cut for [(9, 15), (11, 67), (11, 59), (15, 60), (60, 67)] Optimize a model with 629 rows, 2850 columns and 54239 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 628 rows, 2850 columns, 54184 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 312 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1177.0000000 1151.11364 2.20% - 0s H 0 0 1169.0000000 1151.11364 1.53% - 0s 0 0 1152.62221 0 103 1169.00000 1152.62221 1.40% - 0s 0 0 1152.62221 0 91 1169.00000 1152.62221 1.40% - 0s 0 0 1152.99023 0 97 1169.00000 1152.99023 1.37% - 0s 0 0 1153.20690 0 103 1169.00000 1153.20690 1.35% - 0s 0 0 1153.33431 0 109 1169.00000 1153.33431 1.34% - 1s 0 0 1153.38297 0 108 1169.00000 1153.38297 1.34% - 1s 0 0 1153.42021 0 114 1169.00000 1153.42021 1.33% - 1s 0 0 1153.43313 0 116 1169.00000 1153.43313 1.33% - 1s 0 0 1153.49685 0 116 1169.00000 1153.49685 1.33% - 1s 0 0 1153.51847 0 118 1169.00000 1153.51847 1.32% - 1s 0 0 1153.55126 0 116 1169.00000 1153.55126 1.32% - 1s 0 0 1153.55658 0 117 1169.00000 1153.55658 1.32% - 1s 0 0 1153.56592 0 117 1169.00000 1153.56592 1.32% - 1s 0 0 1153.58188 0 116 1169.00000 1153.58188 1.32% - 1s 0 0 1153.64283 0 118 1169.00000 1153.64283 1.31% - 1s 0 0 1153.65576 0 115 1169.00000 1153.65576 1.31% - 1s 0 0 1153.66933 0 121 1169.00000 1153.66933 1.31% - 1s 0 0 1153.75565 0 115 1169.00000 1153.75565 1.30% - 1s 0 0 1153.76913 0 115 1169.00000 1153.76913 1.30% - 1s 0 0 1153.78295 0 119 1169.00000 1153.78295 1.30% - 1s 0 0 1153.79096 0 119 1169.00000 1153.79096 1.30% - 1s 0 0 1153.79096 0 119 1169.00000 1153.79096 1.30% - 1s 0 2 1153.81990 0 119 1169.00000 1153.81990 1.30% - 1s 607 401 1163.98182 21 111 1169.00000 1156.76582 1.05% 24.3 5s * 930 499 47 1168.0000000 1156.76582 0.96% 26.0 7s 2061 813 1164.31250 24 80 1168.00000 1159.32121 0.74% 24.0 10s 4439 1878 cutoff 27 1168.00000 1160.87060 0.61% 22.1 15s 6887 2757 1163.18000 26 81 1168.00000 1161.67778 0.54% 20.9 20s 9592 3507 1164.68571 28 75 1168.00000 1162.22069 0.49% 20.1 25s 12341 4057 1165.75497 28 74 1168.00000 1162.70213 0.45% 19.8 30s 15229 4497 1166.57353 30 80 1168.00000 1163.07955 0.42% 19.4 35s 18383 4785 cutoff 36 1168.00000 1163.42857 0.39% 19.1 40s 22153 4949 1166.92308 37 60 1168.00000 1163.79487 0.36% 18.7 45s 25917 4750 1166.56250 23 75 1168.00000 1164.15929 0.33% 18.4 50s 29798 4267 1167.00000 30 65 1168.00000 1164.55556 0.29% 18.2 55s 33740 3322 1166.83333 28 66 1168.00000 1165.00000 0.26% 18.0 60s 36611 2247 1166.63889 27 73 1168.00000 1165.43246 0.22% 17.8 65s Cutting planes: Gomory: 5 MIR: 1 Zero half: 15 Explored 40287 nodes (696016 simplex iterations) in 69.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (61, 71), (61, 72), (21, 71), (21, 38), (24, 44), (24, 57), (6, 30), (6, 38), (62, 65), (62, 70)] adding cut for [(32, 56), (19, 51), (19, 25), (34, 64), (10, 32), (17, 64), (17, 50), (25, 50), (26, 51), (26, 56)] adding cut for [(40, 73), (11, 66), (11, 59), (12, 66), (12, 54), (59, 73)] adding cut for [(39, 67), (15, 20), (15, 60), (20, 36), (60, 67)] Optimize a model with 633 rows, 2850 columns and 54483 nonzeros Presolve removed 1 rows and 0 columns Presolve time: 0.05s Presolved: 632 rows, 2850 columns, 54428 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 298 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1181.0000000 1151.11364 2.53% - 0s H 0 0 1169.0000000 1151.11364 1.53% - 0s 0 0 1152.54869 0 99 1169.00000 1152.54869 1.41% - 0s 0 0 1152.54869 0 91 1169.00000 1152.54869 1.41% - 0s 0 0 1152.99023 0 97 1169.00000 1152.99023 1.37% - 0s 0 0 1153.20690 0 103 1169.00000 1153.20690 1.35% - 0s 0 0 1153.33431 0 109 1169.00000 1153.33431 1.34% - 0s 0 0 1153.38297 0 108 1169.00000 1153.38297 1.34% - 1s 0 0 1153.42021 0 114 1169.00000 1153.42021 1.33% - 1s 0 0 1153.43313 0 116 1169.00000 1153.43313 1.33% - 1s 0 0 1153.49907 0 115 1169.00000 1153.49907 1.33% - 1s 0 0 1153.52666 0 114 1169.00000 1153.52666 1.32% - 1s 0 0 1153.56251 0 117 1169.00000 1153.56251 1.32% - 1s 0 0 1153.58019 0 117 1169.00000 1153.58019 1.32% - 1s 0 0 1153.60896 0 116 1169.00000 1153.60896 1.32% - 1s 0 0 1153.64402 0 118 1169.00000 1153.64402 1.31% - 1s 0 0 1153.64545 0 120 1169.00000 1153.64545 1.31% - 1s 0 2 1153.65004 0 120 1169.00000 1153.65004 1.31% - 1s 610 416 1165.55556 25 112 1169.00000 1156.16340 1.10% 22.8 5s 1994 857 1166.25714 22 83 1169.00000 1158.76163 0.88% 23.6 10s H 2785 1172 1168.0000000 1159.53846 0.72% 23.1 11s 3965 1661 1163.38542 22 85 1168.00000 1160.33608 0.66% 22.6 15s 6624 2421 1166.34194 30 78 1168.00000 1161.40000 0.57% 21.8 20s 8927 2956 1163.68293 21 75 1168.00000 1162.00000 0.51% 21.3 25s 11268 3396 1167.00000 24 56 1168.00000 1162.52000 0.47% 21.0 30s 14201 3680 1164.83590 19 88 1168.00000 1163.02082 0.43% 20.7 35s 17034 3760 1166.92857 28 83 1168.00000 1163.51022 0.38% 20.5 40s 20473 3589 1165.76415 23 87 1168.00000 1164.00000 0.34% 20.2 45s 24174 3109 cutoff 27 1168.00000 1164.54902 0.30% 19.8 50s 28188 1857 cutoff 30 1168.00000 1165.35714 0.23% 19.4 55s Cutting planes: Gomory: 4 MIR: 1 Zero half: 14 Explored 31240 nodes (583172 simplex iterations) in 58.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(19, 56), (19, 25), (33, 45), (34, 64), (4, 45), (10, 33), (10, 51), (24, 64), (24, 57), (50, 57), (25, 50), (26, 51), (26, 56)] adding cut for [(6, 16), (6, 30), (62, 70), (29, 75), (29, 62), (16, 38), (21, 38), (21, 71), (61, 71), (61, 72), (37, 72), (37, 70)] adding cut for [(66, 67), (39, 66), (60, 67), (14, 58), (14, 28), (20, 60), (20, 55), (55, 58)] adding cut for [(2, 44), (2, 74), (42, 43), (42, 44), (43, 65), (23, 65), (23, 63)] Optimize a model with 637 rows, 2850 columns and 54716 nonzeros Presolve time: 0.05s Presolved: 637 rows, 2850 columns, 54716 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 301 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1173.0000000 1151.11364 1.87% - 0s 0 0 1152.62425 0 107 1173.00000 1152.62425 1.74% - 0s 0 0 1152.62425 0 91 1173.00000 1152.62425 1.74% - 0s 0 0 1152.69855 0 96 1173.00000 1152.69855 1.73% - 1s 0 0 1153.02403 0 106 1173.00000 1153.02403 1.70% - 1s 0 0 1153.14825 0 107 1173.00000 1153.14825 1.69% - 1s 0 0 1153.47901 0 106 1173.00000 1153.47901 1.66% - 1s 0 0 1153.58470 0 107 1173.00000 1153.58470 1.66% - 1s 0 0 1153.58778 0 110 1173.00000 1153.58778 1.65% - 1s 0 0 1153.63805 0 112 1173.00000 1153.63805 1.65% - 1s 0 0 1153.68480 0 114 1173.00000 1153.68480 1.65% - 1s 0 0 1153.74491 0 120 1173.00000 1153.74491 1.64% - 1s 0 0 1153.85695 0 116 1173.00000 1153.85695 1.63% - 1s 0 0 1153.92510 0 117 1173.00000 1153.92510 1.63% - 1s 0 0 1153.93015 0 117 1173.00000 1153.93015 1.63% - 1s 0 0 1153.94952 0 119 1173.00000 1153.94952 1.62% - 1s 0 0 1153.96223 0 118 1173.00000 1153.96223 1.62% - 1s 0 0 1153.96997 0 117 1173.00000 1153.96997 1.62% - 1s 0 0 1153.97270 0 118 1173.00000 1153.97270 1.62% - 1s 0 0 1153.97583 0 119 1173.00000 1153.97583 1.62% - 1s 0 2 1153.98724 0 119 1173.00000 1153.98724 1.62% - 1s 605 456 1162.98983 14 108 1173.00000 1156.61364 1.40% 24.2 5s * 1166 660 39 1172.0000000 1156.61364 1.31% 27.0 8s H 1496 654 1170.0000000 1157.81787 1.04% 26.6 9s * 1561 591 42 1169.0000000 1157.95360 0.94% 26.6 9s 1635 609 1162.07527 25 94 1169.00000 1157.99109 0.94% 26.3 10s * 2841 971 40 1168.0000000 1159.54639 0.72% 25.5 13s 3001 1038 1164.98095 27 107 1168.00000 1159.82040 0.70% 25.5 15s 3938 1227 cutoff 41 1168.00000 1159.82040 0.70% 26.0 20s 5908 1391 1163.62900 42 88 1168.00000 1160.50898 0.64% 25.1 25s 7983 1973 1164.38937 39 94 1168.00000 1161.31543 0.57% 24.1 30s 10201 2555 1166.01667 42 99 1168.00000 1161.89032 0.52% 23.4 35s 12727 3105 1164.12834 42 87 1168.00000 1162.34343 0.48% 22.8 40s 15348 3541 1165.96774 42 76 1168.00000 1162.79733 0.45% 22.3 45s 18264 3921 1166.87500 40 74 1168.00000 1163.19744 0.41% 21.8 50s 21157 4098 1165.77322 37 84 1168.00000 1163.53635 0.38% 21.5 55s 24617 4129 1164.98216 40 94 1168.00000 1163.89474 0.35% 21.0 60s 28324 4016 1166.92647 38 88 1168.00000 1164.20000 0.33% 20.5 65s 31873 3676 1165.73136 40 91 1168.00000 1164.52941 0.30% 20.2 70s 35161 3125 1165.57143 41 91 1168.00000 1164.86458 0.27% 19.8 75s 38423 2208 cutoff 42 1168.00000 1165.30331 0.23% 19.5 80s Cutting planes: Gomory: 2 Zero half: 22 Explored 42545 nodes (801948 simplex iterations) in 84.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(2, 44), (2, 74), (37, 70), (37, 72), (42, 43), (42, 57), (43, 65), (44, 57), (34, 74), (14, 58), (61, 71), (61, 72), (16, 58), (16, 38), (21, 71), (21, 38), (62, 65), (62, 70)] adding cut for [(66, 67), (39, 66), (11, 32), (11, 39), (24, 64), (24, 50), (19, 56), (19, 25), (20, 36), (20, 55), (17, 64), (55, 60), (25, 50), (26, 32), (26, 56), (60, 67)] Optimize a model with 639 rows, 2850 columns and 55023 nonzeros Presolve time: 0.05s Presolved: 639 rows, 2850 columns, 55023 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 279 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1173.0000000 1151.11364 1.87% - 0s 0 0 1152.62221 0 103 1173.00000 1152.62221 1.74% - 0s 0 0 1152.62221 0 91 1173.00000 1152.62221 1.74% - 1s 0 0 1152.69855 0 96 1173.00000 1152.69855 1.73% - 1s 0 0 1153.02403 0 106 1173.00000 1153.02403 1.70% - 1s 0 0 1153.14825 0 107 1173.00000 1153.14825 1.69% - 1s 0 0 1153.49297 0 108 1173.00000 1153.49297 1.66% - 1s 0 0 1153.63526 0 109 1173.00000 1153.63526 1.65% - 1s 0 0 1153.81657 0 113 1173.00000 1153.81657 1.64% - 1s 0 0 1153.82708 0 114 1173.00000 1153.82708 1.63% - 1s 0 0 1153.87948 0 114 1173.00000 1153.87948 1.63% - 1s 0 0 1153.88682 0 115 1173.00000 1153.88682 1.63% - 1s 0 0 1153.88790 0 117 1173.00000 1153.88790 1.63% - 1s 0 0 1153.88790 0 117 1173.00000 1153.88790 1.63% - 1s 0 2 1153.89603 0 117 1173.00000 1153.89603 1.63% - 1s 605 451 1156.36550 8 113 1173.00000 1155.03739 1.53% 23.4 5s * 689 454 52 1168.0000000 1155.03739 1.11% 24.2 6s 813 494 1164.72727 31 118 1168.00000 1156.28767 1.00% 24.4 10s 2366 851 1162.31735 34 82 1168.00000 1159.05137 0.77% 23.5 15s 4383 1724 1165.28295 38 98 1168.00000 1160.33654 0.66% 22.8 20s 6801 2549 1162.08333 37 82 1168.00000 1161.16230 0.59% 22.1 25s 9172 3215 1165.37766 42 87 1168.00000 1161.71429 0.54% 21.6 30s 11828 3774 1164.77966 40 72 1168.00000 1162.22222 0.49% 21.2 35s 14606 4187 1166.13362 42 89 1168.00000 1162.64478 0.46% 20.9 40s 17620 4547 1166.85185 40 80 1168.00000 1163.03448 0.43% 20.6 45s 21054 4696 cutoff 43 1168.00000 1163.43169 0.39% 20.3 50s 24643 4671 1165.70588 43 80 1168.00000 1163.80208 0.36% 20.0 55s 28244 4424 cutoff 47 1168.00000 1164.13901 0.33% 19.7 60s 31595 3963 cutoff 44 1168.00000 1164.50902 0.30% 19.5 65s 35258 3075 1166.43750 40 70 1168.00000 1165.00000 0.26% 19.3 70s 38938 1616 1166.19291 40 84 1168.00000 1165.62857 0.20% 18.9 75s Cutting planes: Gomory: 4 MIR: 1 Zero half: 18 Explored 41375 nodes (762134 simplex iterations) in 77.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(42, 44), (42, 57), (43, 65), (43, 44), (17, 50), (22, 75), (22, 29), (25, 50), (24, 25), (24, 57), (23, 65), (23, 29)] adding cut for [(37, 72), (37, 70), (14, 58), (16, 38), (16, 58), (21, 38), (21, 71), (61, 71), (61, 72), (62, 70)] adding cut for [(33, 51), (33, 45), (4, 45), (10, 26), (19, 51), (19, 56), (26, 56)] adding cut for [(32, 66), (32, 40), (66, 67), (40, 73), (12, 67), (12, 54)] Optimize a model with 643 rows, 2850 columns and 55205 nonzeros Presolve time: 0.05s Presolved: 643 rows, 2850 columns, 55205 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 309 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1181.0000000 1151.11364 2.53% - 0s H 0 0 1178.0000000 1151.11364 2.28% - 0s 0 0 1152.59655 0 107 1178.00000 1152.59655 2.16% - 1s 0 0 1152.59655 0 91 1178.00000 1152.59655 2.16% - 1s 0 0 1152.80251 0 100 1178.00000 1152.80251 2.14% - 1s 0 0 1153.07420 0 105 1178.00000 1153.07420 2.12% - 1s 0 0 1153.14744 0 109 1178.00000 1153.14744 2.11% - 1s 0 0 1153.32881 0 111 1178.00000 1153.32881 2.09% - 1s 0 0 1153.39773 0 116 1178.00000 1153.39773 2.09% - 1s 0 0 1153.49975 0 109 1178.00000 1153.49975 2.08% - 1s 0 0 1153.55429 0 114 1178.00000 1153.55429 2.08% - 1s 0 0 1153.59726 0 115 1178.00000 1153.59726 2.07% - 1s 0 0 1153.59726 0 115 1178.00000 1153.59726 2.07% - 1s 0 2 1153.60141 0 115 1178.00000 1153.60141 2.07% - 1s * 304 260 66 1177.0000000 1153.83666 1.97% 21.6 3s * 584 465 52 1175.0000000 1154.47279 1.75% 22.2 4s 701 526 1158.89908 17 107 1175.00000 1154.93885 1.71% 21.6 5s 1004 670 1163.40476 32 86 1175.00000 1156.03807 1.61% 24.7 10s * 1060 650 56 1174.0000000 1156.03807 1.53% 24.4 10s * 1219 676 47 1173.0000000 1156.05988 1.44% 25.2 10s H 1778 662 1169.0000000 1157.50000 0.98% 24.7 12s 2061 759 1165.87037 36 82 1169.00000 1157.87837 0.95% 25.6 15s 3874 1028 1165.00000 36 74 1169.00000 1159.28571 0.83% 25.0 20s 5988 1823 cutoff 37 1169.00000 1160.72321 0.71% 24.0 25s 8197 2466 1164.63866 41 72 1169.00000 1161.48148 0.64% 23.4 30s * 8660 2421 38 1168.0000000 1161.61444 0.55% 23.2 31s 10379 2713 1166.57895 44 86 1168.00000 1162.07317 0.51% 22.8 35s 13286 3055 cutoff 34 1168.00000 1162.76667 0.45% 22.2 40s 16182 3146 1166.92857 35 75 1168.00000 1163.30769 0.40% 21.8 45s 19187 3073 cutoff 37 1168.00000 1163.79787 0.36% 21.3 50s 22171 2785 cutoff 37 1168.00000 1164.31915 0.32% 20.9 55s 26120 1983 1166.66286 34 82 1168.00000 1165.08889 0.25% 20.3 60s Cutting planes: Gomory: 1 Zero half: 16 Explored 30192 nodes (580308 simplex iterations) in 64.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.168000000000e+03, best bound 1.168000000000e+03, gap 0.0% adding cut for [(6, 30), (6, 38), (11, 32), (11, 39), (16, 21), (16, 58), (19, 51), (19, 56), (20, 55), (20, 60), (21, 71), (26, 32), (26, 56), (38, 72), (39, 66), (45, 51), (55, 58), (60, 67), (61, 71), (61, 72), (66, 67)] adding cut for [(4, 25), (37, 70), (37, 48), (42, 44), (42, 57), (43, 65), (43, 44), (48, 49), (24, 50), (24, 57), (25, 50), (62, 65), (62, 70)] Optimize a model with 645 rows, 2850 columns and 55527 nonzeros Presolve time: 0.05s Presolved: 645 rows, 2850 columns, 55527 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 2850 integer (2775 binary) Found heuristic solution: objective 2864.0000000 Root relaxation: objective 1.151114e+03, 286 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1151.11364 0 91 2864.00000 1151.11364 59.8% - 0s Another try with MIP start H 0 0 1177.0000000 1151.11364 2.20% - 0s H 0 0 1173.0000000 1151.11364 1.87% - 0s 0 0 1152.62425 0 107 1173.00000 1152.62425 1.74% - 0s 0 0 1152.62425 0 91 1173.00000 1152.62425 1.74% - 1s 0 0 1152.83236 0 101 1173.00000 1152.83236 1.72% - 1s 0 0 1153.14275 0 105 1173.00000 1153.14275 1.69% - 1s 0 0 1153.32958 0 101 1173.00000 1153.32958 1.68% - 1s 0 0 1153.39636 0 103 1173.00000 1153.39636 1.67% - 1s 0 0 1153.44763 0 110 1173.00000 1153.44763 1.67% - 1s 0 0 1153.49682 0 115 1173.00000 1153.49682 1.66% - 1s 0 0 1153.53427 0 112 1173.00000 1153.53427 1.66% - 1s 0 0 1153.53839 0 115 1173.00000 1153.53839 1.66% - 1s 0 0 1153.54595 0 116 1173.00000 1153.54595 1.66% - 1s 0 2 1153.54596 0 116 1173.00000 1153.54596 1.66% - 1s 606 482 1167.42187 25 113 1173.00000 1155.10725 1.53% 22.6 5s * 1004 605 62 1172.0000000 1156.30557 1.34% 24.5 9s 1218 672 1170.23077 29 64 1172.00000 1157.17079 1.27% 24.4 10s * 1844 789 36 1171.0000000 1158.36951 1.08% 23.7 11s H 2942 1271 1170.0000000 1159.61217 0.89% 23.1 14s 3109 1353 1168.25000 30 27 1170.00000 1159.81596 0.87% 23.1 15s * 3113 1201 31 1169.0000000 1159.81596 0.79% 23.1 15s 4756 1933 1166.79121 26 86 1169.00000 1160.77778 0.70% 22.6 20s * 5223 1847 29 1168.0000000 1161.00000 0.60% 22.4 20s 6032 2055 1162.12500 33 72 1168.00000 1161.06838 0.59% 22.9 25s 8105 2139 1165.59375 33 76 1168.00000 1161.06838 0.59% 22.7 30s 10327 1958 1166.18519 37 91 1168.00000 1161.82369 0.53% 22.3 35s 12861 2148 1165.00000 35 59 1168.00000 1162.51829 0.47% 21.9 40s 15567 2432 1166.34921 36 83 1168.00000 1163.12195 0.42% 21.4 45s 18514 2490 1165.00000 36 86 1168.00000 1163.75633 0.36% 21.1 50s 21733 2365 cutoff 36 1168.00000 1164.34634 0.31% 20.6 55s 25067 1874 1166.26556 33 81 1168.00000 1165.00000 0.26% 20.2 60s Cutting planes: Gomory: 1 MIR: 1 Zero half: 17 Mod-K: 1 Explored 25126 nodes (507947 simplex iterations) in 60.12 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective 1.168000000000e+03, best bound 1.165000000000e+03, gap 0.2568% Gurobi 5.0.1 (linux64) logging started Fri Dec 7 12:50:33 2012