Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:23:35 2012 Optimize a model with 389 rows, 285 columns and 1255 nonzeros Presolve time: 0.00s Presolved: 389 rows, 285 columns, 1255 nonzeros Variable types: 0 continuous, 285 integer (285 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 118 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 90 86.00000 0.00000 100% - 0s H 0 0 74.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s 0 0 0.51163 0 91 70.00000 0.51163 99.3% - 0s 0 0 0.60952 0 93 70.00000 0.60952 99.1% - 0s 0 0 0.62791 0 92 70.00000 0.62791 99.1% - 0s 0 0 0.62946 0 93 70.00000 0.62946 99.1% - 0s 0 0 0.62946 0 93 70.00000 0.62946 99.1% - 0s H 0 0 68.0000000 0.62946 99.1% - 0s H 0 0 67.0000000 0.62946 99.1% - 0s 0 2 0.66233 0 93 67.00000 0.66233 99.0% - 0s * 46 46 27 46.0000000 5.05343 89.0% 33.0 0s * 88 75 24 42.0000000 5.09380 87.9% 29.4 0s * 90 71 23 41.0000000 5.09380 87.6% 29.1 0s * 190 127 21 35.0000000 7.39535 78.9% 26.2 0s H 352 212 34.0000000 9.82326 71.1% 25.4 0s H 2388 601 33.0000000 19.52632 40.8% 24.1 2s 4977 828 31.59155 24 128 33.00000 23.00000 30.3% 22.3 5s 11636 264 30.45946 22 127 33.00000 28.25000 14.4% 20.6 10s Explored 12170 nodes (249276 simplex iterations) in 10.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%