Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:32:38 2012 Optimize a model with 463 rows, 449 columns and 1604 nonzeros Presolve removed 0 rows and 16 columns Presolve time: 0.00s Presolved: 463 rows, 433 columns, 1588 nonzeros Variable types: 0 continuous, 433 integer (432 binary) Found heuristic solution: objective 91.0000000 Root relaxation: objective 0.000000e+00, 264 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 0 191 91.00000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s 0 0 0.45453 0 192 58.00000 0.45453 99.2% - 0s H 0 0 53.0000000 0.45453 99.1% - 0s H 0 0 52.0000000 0.45453 99.1% - 0s 0 0 1.00000 0 195 52.00000 1.00000 98.1% - 0s H 0 0 47.0000000 1.00000 97.9% - 0s 0 0 1.00000 0 194 47.00000 1.00000 97.9% - 0s H 0 0 44.0000000 1.00000 97.7% - 0s 0 0 1.00000 0 196 44.00000 1.00000 97.7% - 0s 0 0 1.00000 0 195 44.00000 1.00000 97.7% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s 0 2 1.00000 0 191 30.00000 1.00000 96.7% - 0s H 27 24 13.0000000 1.73189 86.7% 46.6 0s * 50 24 14 12.0000000 1.74250 85.5% 38.6 0s * 163 31 18 11.0000000 5.59406 49.1% 33.0 0s Cutting planes: Gomory: 2 Mod-K: 2 Explored 265 nodes (9418 simplex iterations) in 0.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%