Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:39:21 2012 Optimize a model with 5344 rows, 146 columns and 10688 nonzeros Presolve removed 3852 rows and 0 columns Presolve time: 0.21s Presolved: 1492 rows, 146 columns, 10908 nonzeros Variable types: 0 continuous, 146 integer (146 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 1.831191e+01, 771 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.31191 0 142 9.00000 18.31191 103% - 0s 0 0 17.75962 0 146 9.00000 17.75962 97.3% - 0s 0 0 17.66975 0 146 9.00000 17.66975 96.3% - 0s 0 0 17.60989 0 146 9.00000 17.60989 95.7% - 0s 0 0 17.52638 0 146 9.00000 17.52638 94.7% - 1s 0 0 17.47583 0 146 9.00000 17.47583 94.2% - 1s 0 0 17.46690 0 145 9.00000 17.46690 94.1% - 1s 0 0 17.46286 0 146 9.00000 17.46286 94.0% - 1s 0 0 17.45449 0 146 9.00000 17.45449 93.9% - 2s 0 0 17.45055 0 146 9.00000 17.45055 93.9% - 2s 0 0 17.45035 0 146 9.00000 17.45035 93.9% - 2s 0 0 17.45016 0 146 9.00000 17.45016 93.9% - 2s 0 0 17.45012 0 146 9.00000 17.45012 93.9% - 2s 0 2 17.45005 0 146 9.00000 17.45005 93.9% - 3s H 135 96 10.0000000 17.12033 71.2% 94.8 4s 199 137 13.43255 6 69 10.00000 16.87142 68.7% 89.5 5s 769 202 11.05902 5 39 10.00000 13.10792 31.1% 78.1 10s Cutting planes: Clique: 195 Explored 1008 nodes (74838 simplex iterations) in 12.68 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%