Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:02 2012 Optimize a model with 269 rows, 204 columns and 874 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 269 rows, 203 columns, 873 nonzeros Variable types: 0 continuous, 203 integer (202 binary) Found heuristic solution: objective 55.0000000 Root relaxation: objective 0.000000e+00, 96 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 68 55.00000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.50046 0 69 43.00000 0.50046 98.8% - 0s H 0 0 40.0000000 0.50046 98.7% - 0s 0 0 1.00000 0 71 40.00000 1.00000 97.5% - 0s 0 0 1.00000 0 70 40.00000 1.00000 97.5% - 0s 0 0 1.00000 0 68 40.00000 1.00000 97.5% - 0s H 0 0 38.0000000 1.00000 97.4% - 0s H 0 0 36.0000000 1.00000 97.2% - 0s H 0 0 34.0000000 1.00000 97.1% - 0s 0 2 1.00000 0 68 34.00000 1.00000 97.1% - 0s H 22 22 33.0000000 1.90725 94.2% 39.6 0s H 22 22 32.0000000 1.90725 94.0% 39.6 0s H 24 24 25.0000000 1.90725 92.4% 38.5 0s * 32 23 19 24.0000000 1.90725 92.1% 32.6 0s H 462 198 22.0000000 7.54125 65.7% 25.8 0s Explored 987 nodes (25975 simplex iterations) in 0.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%