Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:57:17 2012 Optimize a model with 3585 rows, 119 columns and 7170 nonzeros Presolve removed 2539 rows and 0 columns Presolve time: 0.12s Presolved: 1046 rows, 119 columns, 7213 nonzeros Variable types: 0 continuous, 119 integer (119 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.566511e+01, 527 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.66511 0 118 7.00000 15.66511 124% - 0s 0 0 15.43500 0 117 7.00000 15.43500 120% - 0s H 0 0 8.0000000 15.43500 92.9% - 0s 0 0 15.25635 0 116 8.00000 15.25635 90.7% - 0s H 0 0 9.0000000 15.25635 69.5% - 0s 0 0 15.22769 0 119 9.00000 15.22769 69.2% - 0s 0 0 15.20463 0 119 9.00000 15.20463 68.9% - 0s 0 0 15.17846 0 118 9.00000 15.17846 68.6% - 0s 0 0 15.14460 0 119 9.00000 15.14460 68.3% - 1s 0 0 15.13249 0 119 9.00000 15.13249 68.1% - 1s 0 0 15.13193 0 119 9.00000 15.13193 68.1% - 1s 0 0 15.13192 0 119 9.00000 15.13192 68.1% - 1s 0 0 15.13187 0 119 9.00000 15.13187 68.1% - 1s 0 2 15.12885 0 119 9.00000 15.12885 68.1% - 2s Cutting planes: Clique: 88 Explored 507 nodes (32037 simplex iterations) in 4.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%