Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:55:53 2012 Optimize a model with 3382 rows, 117 columns and 6764 nonzeros Presolve removed 2437 rows and 0 columns Presolve time: 0.11s Presolved: 945 rows, 117 columns, 6551 nonzeros Variable types: 0 continuous, 117 integer (117 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.605026e+01, 426 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.05026 0 114 8.00000 16.05026 101% - 0s 0 0 15.61294 0 116 8.00000 15.61294 95.2% - 0s 0 0 15.56555 0 115 8.00000 15.56555 94.6% - 0s 0 0 15.52838 0 116 8.00000 15.52838 94.1% - 0s H 0 0 9.0000000 15.52838 72.5% - 0s 0 0 15.52056 0 116 9.00000 15.52056 72.5% - 0s 0 0 15.51330 0 115 9.00000 15.51330 72.4% - 0s 0 0 15.50295 0 116 9.00000 15.50295 72.3% - 1s 0 0 15.49020 0 116 9.00000 15.49020 72.1% - 1s 0 0 15.48640 0 116 9.00000 15.48640 72.1% - 1s 0 0 15.48257 0 116 9.00000 15.48257 72.0% - 1s 0 0 15.48000 0 116 9.00000 15.48000 72.0% - 1s 0 0 15.47926 0 115 9.00000 15.47926 72.0% - 2s 0 0 15.47923 0 115 9.00000 15.47923 72.0% - 2s 0 2 15.47796 0 115 9.00000 15.47796 72.0% - 2s * 163 71 10 10.0000000 14.38709 43.9% 67.3 3s Cutting planes: Clique: 85 Explored 298 nodes (20520 simplex iterations) in 3.79 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%