Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:48:18 2012 Optimize a model with 377 rows, 270 columns and 1210 nonzeros Presolve time: 0.00s Presolved: 377 rows, 270 columns, 1210 nonzeros Variable types: 0 continuous, 270 integer (270 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 116 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 82 82.00000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s 0 0 0.68571 0 84 67.00000 0.68571 99.0% - 0s H 0 0 62.0000000 0.68571 98.9% - 0s 0 0 0.73333 0 85 62.00000 0.73333 98.8% - 0s 0 0 0.82051 0 85 62.00000 0.82051 98.7% - 0s 0 0 0.89264 0 86 62.00000 0.89264 98.6% - 0s 0 0 0.89406 0 86 62.00000 0.89406 98.6% - 0s 0 0 0.89406 0 86 62.00000 0.89406 98.6% - 0s H 0 0 58.0000000 0.89406 98.5% - 0s H 0 0 57.0000000 0.89406 98.4% - 0s H 0 0 54.0000000 0.89406 98.3% - 0s H 0 0 51.0000000 0.89406 98.2% - 0s 0 2 0.89524 0 86 51.00000 0.89524 98.2% - 0s * 33 33 21 42.0000000 6.36682 84.8% 28.4 0s * 185 141 20 41.0000000 11.71429 71.4% 27.3 0s H 191 135 40.0000000 11.71429 70.7% 26.7 0s * 225 142 21 37.0000000 11.72222 68.3% 26.5 0s * 1447 181 22 36.0000000 24.58209 31.7% 25.9 1s Explored 2712 nodes (66588 simplex iterations) in 2.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%