Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:14:29 2012 Optimize a model with 4574 rows, 135 columns and 9148 nonzeros Presolve removed 3367 rows and 0 columns Presolve time: 0.17s Presolved: 1207 rows, 135 columns, 8626 nonzeros Variable types: 0 continuous, 135 integer (135 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 1.716896e+01, 585 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.16896 0 133 9.00000 17.16896 90.8% - 0s 0 0 16.93198 0 134 9.00000 16.93198 88.1% - 0s 0 0 16.83591 0 134 9.00000 16.83591 87.1% - 0s 0 0 16.80092 0 135 9.00000 16.80092 86.7% - 0s 0 0 16.78139 0 135 9.00000 16.78139 86.5% - 0s 0 0 16.77348 0 135 9.00000 16.77348 86.4% - 1s 0 0 16.76759 0 134 9.00000 16.76759 86.3% - 1s 0 0 16.76417 0 135 9.00000 16.76417 86.3% - 1s 0 0 16.76295 0 135 9.00000 16.76295 86.3% - 1s 0 0 16.74694 0 135 9.00000 16.74694 86.1% - 1s 0 0 16.74195 0 135 9.00000 16.74195 86.0% - 2s 0 0 16.74070 0 135 9.00000 16.74070 86.0% - 2s 0 0 16.74062 0 135 9.00000 16.74062 86.0% - 2s 0 0 16.74057 0 135 9.00000 16.74057 86.0% - 2s 0 2 16.72481 0 135 9.00000 16.72481 85.8% - 3s 299 189 11.80954 12 54 9.00000 15.12462 68.1% 74.4 5s 610 280 13.45883 14 134 9.00000 13.45883 49.5% 69.9 10s 1299 276 11.30431 24 38 9.00000 12.48877 38.8% 70.4 15s * 1523 139 34 10.0000000 12.14039 21.4% 64.7 16s Cutting planes: Clique: 39 Explored 1730 nodes (104397 simplex iterations) in 16.63 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%