Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:21:06 2012 Optimize a model with 523 rows, 489 columns and 1794 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 523 rows, 472 columns, 1777 nonzeros Variable types: 0 continuous, 472 integer (471 binary) Found heuristic solution: objective 92.0000000 Root relaxation: objective 0.000000e+00, 261 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 0 202 92.00000 0.00000 100% - 0s H 0 0 85.0000000 0.00000 100% - 0s H 0 0 78.0000000 0.00000 100% - 0s H 0 0 71.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s 0 0 0.36222 0 204 69.00000 0.36222 99.5% - 0s H 0 0 52.0000000 0.36222 99.3% - 0s H 0 0 35.0000000 0.36222 99.0% - 0s 0 0 0.84524 0 207 35.00000 0.84524 97.6% - 0s H 0 0 34.0000000 0.84524 97.5% - 0s 0 0 0.84524 0 207 34.00000 0.84524 97.5% - 0s H 0 0 32.0000000 0.84524 97.4% - 0s 0 2 0.86146 0 207 32.00000 0.86146 97.3% - 0s H 27 27 30.0000000 1.00000 96.7% 49.0 0s H 54 52 19.0000000 1.00000 94.7% 31.8 0s H 92 42 14.0000000 1.00000 92.9% 30.4 0s Cutting planes: Gomory: 4 Mod-K: 2 Explored 1691 nodes (59329 simplex iterations) in 2.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%