Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:57:12 2012 Optimize a model with 3496 rows, 119 columns and 6992 nonzeros Presolve removed 2511 rows and 0 columns Presolve time: 0.11s Presolved: 985 rows, 119 columns, 6907 nonzeros Variable types: 0 continuous, 119 integer (119 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.586171e+01, 526 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.86171 0 118 7.00000 15.86171 127% - 0s H 0 0 8.0000000 15.86171 98.3% - 0s 0 0 15.54792 0 119 8.00000 15.54792 94.3% - 0s 0 0 15.46866 0 119 8.00000 15.46866 93.4% - 0s 0 0 15.44927 0 118 8.00000 15.44927 93.1% - 0s H 0 0 9.0000000 15.44927 71.7% - 0s 0 0 15.40625 0 119 9.00000 15.40625 71.2% - 0s 0 0 15.38019 0 119 9.00000 15.38019 70.9% - 0s 0 0 15.37502 0 119 9.00000 15.37502 70.8% - 0s 0 0 15.36491 0 119 9.00000 15.36491 70.7% - 1s 0 0 15.35885 0 119 9.00000 15.35885 70.7% - 1s 0 0 15.35298 0 119 9.00000 15.35298 70.6% - 1s 0 0 15.35267 0 119 9.00000 15.35267 70.6% - 1s 0 0 15.35242 0 119 9.00000 15.35242 70.6% - 1s 0 0 15.34968 0 119 9.00000 15.34968 70.6% - 2s 0 0 15.34913 0 119 9.00000 15.34913 70.5% - 2s 0 0 15.34909 0 119 9.00000 15.34909 70.5% - 2s 0 2 15.34352 0 119 9.00000 15.34352 70.5% - 2s * 387 91 4 10.0000000 12.75550 27.6% 59.6 4s Cutting planes: Clique: 112 Explored 489 nodes (28110 simplex iterations) in 4.61 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%