Gurobi 5.0.1 (linux64) logging started Mon Nov 19 13:54:49 2012 Optimize a model with 8677 rows, 185 columns and 17354 nonzeros Presolve removed 6344 rows and 0 columns Presolve time: 0.44s Presolved: 2333 rows, 185 columns, 17724 nonzeros Variable types: 0 continuous, 185 integer (185 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 2.170634e+01, 1130 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21.70634 0 185 7.00000 21.70634 210% - 0s H 0 0 8.0000000 21.70634 171% - 0s H 0 0 9.0000000 21.70634 141% - 0s 0 0 21.08555 0 184 9.00000 21.08555 134% - 1s 0 0 20.95611 0 184 9.00000 20.95611 133% - 1s 0 0 20.89051 0 185 9.00000 20.89051 132% - 1s 0 0 20.83378 0 184 9.00000 20.83378 131% - 1s 0 0 20.79921 0 185 9.00000 20.79921 131% - 2s 0 0 20.78355 0 185 9.00000 20.78355 131% - 2s 0 0 20.77631 0 185 9.00000 20.77631 131% - 2s H 0 0 10.0000000 20.77631 108% - 2s 0 0 20.76967 0 185 10.00000 20.76967 108% - 2s 0 0 20.76758 0 185 10.00000 20.76758 108% - 3s 0 0 20.76438 0 185 10.00000 20.76438 108% - 3s 0 0 20.76224 0 185 10.00000 20.76224 108% - 3s 0 0 20.76156 0 185 10.00000 20.76156 108% - 3s 0 0 20.76118 0 185 10.00000 20.76118 108% - 4s 0 0 20.75733 0 185 10.00000 20.75733 108% - 4s 0 0 20.74949 0 184 10.00000 20.74949 107% - 4s 0 0 20.74752 0 185 10.00000 20.74752 107% - 4s 0 0 20.74578 0 185 10.00000 20.74578 107% - 5s 0 0 20.73546 0 185 10.00000 20.73546 107% - 5s 0 0 20.72613 0 185 10.00000 20.72613 107% - 5s 0 0 20.71554 0 185 10.00000 20.71554 107% - 6s 0 0 20.70941 0 185 10.00000 20.70941 107% - 6s H 0 0 11.0000000 20.70941 88.3% - 6s 0 0 20.70923 0 185 11.00000 20.70923 88.3% - 6s 0 0 20.70736 0 185 11.00000 20.70736 88.2% - 6s 0 0 20.70007 0 184 11.00000 20.70007 88.2% - 7s 0 0 20.69318 0 185 11.00000 20.69318 88.1% - 7s 0 0 20.69019 0 185 11.00000 20.69019 88.1% - 7s 0 0 20.68948 0 185 11.00000 20.68948 88.1% - 7s 0 0 20.68940 0 185 11.00000 20.68940 88.1% - 8s 0 0 20.67923 0 185 11.00000 20.67923 88.0% - 8s 0 0 20.66781 0 185 11.00000 20.66781 87.9% - 8s 0 0 20.66606 0 185 11.00000 20.66606 87.9% - 8s 0 0 20.66545 0 185 11.00000 20.66545 87.9% - 9s 0 0 20.66315 0 185 11.00000 20.66315 87.8% - 9s 0 0 20.66281 0 185 11.00000 20.66281 87.8% - 9s 0 0 20.66263 0 185 11.00000 20.66263 87.8% - 10s 0 0 20.66248 0 185 11.00000 20.66248 87.8% - 10s 0 2 20.66204 0 185 11.00000 20.66204 87.8% - 11s 193 169 12.51643 30 72 11.00000 20.33078 84.8% 122 15s 414 298 12.88163 24 72 11.00000 19.57916 78.0% 110 20s 525 353 15.17477 21 89 11.00000 19.07432 73.4% 109 25s 601 413 14.00529 24 185 11.00000 18.74931 70.4% 107 33s 605 416 14.56385 17 185 11.00000 18.74931 70.4% 106 35s 611 420 15.50832 7 185 11.00000 18.74931 70.4% 105 40s 618 424 14.53811 18 185 11.00000 18.74931 70.4% 104 45s 623 430 16.64102 15 95 11.00000 18.74931 70.4% 109 50s 651 448 15.85628 29 94 11.00000 18.74931 70.4% 135 55s 713 490 13.65900 60 72 11.00000 17.10359 55.5% 171 60s 932 482 14.71271 36 84 11.00000 16.93649 54.0% 163 65s 1189 520 15.84710 20 93 11.00000 16.20028 47.3% 140 70s 1354 544 13.78539 26 52 11.00000 16.01267 45.6% 129 75s 1484 563 15.46795 32 95 11.00000 15.85187 44.1% 123 80s 1740 565 12.28214 33 48 11.00000 15.64966 42.3% 113 85s 2077 579 12.00000 36 42 11.00000 15.27258 38.8% 104 90s 2407 586 cutoff 29 11.00000 14.73387 33.9% 100 95s 2704 552 cutoff 38 11.00000 14.13456 28.5% 97.7 100s 3089 504 cutoff 45 11.00000 13.52779 23.0% 92.8 105s 3770 93 cutoff 57 11.00000 12.52243 13.8% 82.4 110s Cutting planes: Gomory: 8 Clique: 86 Zero half: 2 Explored 3879 nodes (315739 simplex iterations) in 110.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%