Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:30:44 2012 Optimize a model with 5136 rows, 143 columns and 10272 nonzeros Presolve removed 3653 rows and 0 columns Presolve time: 0.20s Presolved: 1483 rows, 143 columns, 10742 nonzeros Variable types: 0 continuous, 143 integer (143 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 1.792055e+01, 688 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.92055 0 140 9.00000 17.92055 99.1% - 0s 0 0 17.57091 0 140 9.00000 17.57091 95.2% - 0s H 0 0 10.0000000 17.57091 75.7% - 0s 0 0 17.37006 0 143 10.00000 17.37006 73.7% - 0s 0 0 17.29361 0 143 10.00000 17.29361 72.9% - 0s 0 0 17.23515 0 141 10.00000 17.23515 72.4% - 1s 0 0 17.20258 0 142 10.00000 17.20258 72.0% - 1s 0 0 17.18986 0 141 10.00000 17.18986 71.9% - 1s 0 0 17.18315 0 143 10.00000 17.18315 71.8% - 1s 0 0 17.17986 0 143 10.00000 17.17986 71.8% - 1s 0 0 17.17776 0 143 10.00000 17.17776 71.8% - 2s 0 0 17.17561 0 143 10.00000 17.17561 71.8% - 2s 0 0 17.17503 0 143 10.00000 17.17503 71.8% - 2s 0 0 17.17496 0 143 10.00000 17.17496 71.7% - 2s 0 0 17.17494 0 143 10.00000 17.17494 71.7% - 2s 0 2 17.17299 0 143 10.00000 17.17299 71.7% - 3s 183 121 13.32734 7 70 10.00000 16.25505 62.6% 87.6 5s Cutting planes: Clique: 154 Explored 749 nodes (58635 simplex iterations) in 9.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%