Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:31:11 2012 Optimize a model with 393 rows, 289 columns and 1269 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 393 rows, 288 columns, 1268 nonzeros Variable types: 0 continuous, 288 integer (287 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 120 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 91 86.00000 0.00000 100% - 0s H 0 0 78.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.47568 0 93 68.00000 0.47568 99.3% - 0s H 0 0 67.0000000 0.47568 99.3% - 0s 0 0 0.95839 0 96 67.00000 0.95839 98.6% - 0s H 0 0 65.0000000 0.95839 98.5% - 0s 0 0 0.95839 0 96 65.00000 0.95839 98.5% - 0s H 0 0 59.0000000 0.95839 98.4% - 0s H 0 0 58.0000000 0.95839 98.3% - 0s 0 2 0.95924 0 96 58.00000 0.95924 98.3% - 0s H 54 49 46.0000000 3.10345 93.3% 29.4 0s H 108 81 45.0000000 3.18750 92.9% 25.4 0s * 154 107 30 42.0000000 6.01534 85.7% 25.0 0s * 330 247 25 41.0000000 8.51163 79.2% 28.0 0s * 703 413 33 39.0000000 10.00000 74.4% 29.3 1s * 847 459 33 38.0000000 12.05747 68.3% 29.9 1s * 3566 727 32 37.0000000 24.43939 33.9% 23.9 3s 4778 823 35.88000 25 140 37.00000 25.53333 31.0% 23.2 5s 10898 561 34.87671 24 137 37.00000 29.68750 19.8% 21.8 10s Explored 13567 nodes (289488 simplex iterations) in 11.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%