Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:27:03 2012 Optimize a model with 397 rows, 227 columns and 1217 nonzeros Presolve time: 0.00s Presolved: 397 rows, 227 columns, 1217 nonzeros Variable types: 0 continuous, 227 integer (227 binary) Found heuristic solution: objective 95.0000000 Root relaxation: objective 0.000000e+00, 59 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 29 95.00000 0.00000 100% - 0s H 0 0 93.0000000 0.00000 100% - 0s 0 0 0.78818 0 31 93.00000 0.78818 99.2% - 0s 0 0 0.81281 0 31 93.00000 0.81281 99.1% - 0s 0 0 0.81281 0 31 93.00000 0.81281 99.1% - 0s 0 0 0.81489 0 43 93.00000 0.81489 99.1% - 0s H 0 0 90.0000000 0.81489 99.1% - 0s H 0 0 89.0000000 0.81489 99.1% - 0s 0 2 0.87185 0 43 89.00000 0.87185 99.0% - 0s * 103 68 18 88.0000000 16.39286 81.4% 34.1 0s * 794 371 32 87.0000000 36.21053 58.4% 30.4 0s * 972 382 30 85.0000000 36.21053 57.4% 30.2 1s * 985 360 34 84.0000000 36.21053 56.9% 29.9 1s * 1017 348 31 83.0000000 36.21053 56.4% 29.9 1s * 1047 339 33 81.0000000 36.21053 55.3% 29.8 1s * 1679 420 32 80.0000000 41.76471 47.8% 29.0 1s H 2423 561 78.0000000 44.29412 43.2% 28.1 2s H 3038 621 76.0000000 48.20000 36.6% 27.8 3s 5253 773 71.82353 26 122 76.00000 55.46154 27.0% 26.7 5s *10528 466 30 75.0000000 62.11111 17.2% 25.1 9s 12097 116 cutoff 26 75.00000 70.00000 6.67% 24.7 10s Cutting planes: Gomory: 1 Mod-K: 3 Explored 12232 nodes (300530 simplex iterations) in 10.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.500000000000e+01, best bound 7.500000000000e+01, gap 0.0%