Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:25:03 2012 Optimize a model with 389 rows, 285 columns and 1255 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 389 rows, 284 columns, 1254 nonzeros Variable types: 0 continuous, 284 integer (283 binary) Found heuristic solution: objective 79.0000000 Root relaxation: objective 0.000000e+00, 126 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 89 79.00000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.49438 0 90 68.00000 0.49438 99.3% - 0s H 0 0 64.0000000 0.49438 99.2% - 0s 0 0 1.08003 0 92 64.00000 1.08003 98.3% - 0s H 0 0 60.0000000 1.08003 98.2% - 0s H 0 0 57.0000000 1.08003 98.1% - 0s 0 0 1.20945 0 93 57.00000 1.20945 97.9% - 0s H 0 0 55.0000000 1.20945 97.8% - 0s 0 0 1.21086 0 94 55.00000 1.21086 97.8% - 0s 0 0 1.21086 0 94 55.00000 1.21086 97.8% - 0s H 0 0 54.0000000 1.21086 97.8% - 0s H 0 0 53.0000000 1.21086 97.7% - 0s 0 2 1.21674 0 94 53.00000 1.21674 97.7% - 0s * 52 44 29 41.0000000 5.35428 86.9% 28.7 0s * 88 64 18 38.0000000 5.45019 85.7% 28.5 0s * 821 397 28 37.0000000 13.03846 64.8% 31.1 1s 4516 75 35.32203 23 129 37.00000 32.12121 13.2% 26.3 5s Explored 4686 nodes (122461 simplex iterations) in 5.11 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%