Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:56:31 2012 Optimize a model with 3438 rows, 118 columns and 6876 nonzeros Presolve removed 2466 rows and 0 columns Presolve time: 0.11s Presolved: 972 rows, 118 columns, 6727 nonzeros Variable types: 0 continuous, 118 integer (118 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.596259e+01, 467 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.96259 0 114 6.00000 15.96259 166% - 0s H 0 0 7.0000000 15.96259 128% - 0s 0 0 15.60472 0 117 7.00000 15.60472 123% - 0s 0 0 15.44980 0 118 7.00000 15.44980 121% - 0s 0 0 15.40781 0 118 7.00000 15.40781 120% - 0s H 0 0 8.0000000 15.40781 92.6% - 0s 0 0 15.38674 0 117 8.00000 15.38674 92.3% - 0s H 0 0 9.0000000 15.38674 71.0% - 0s 0 0 15.36567 0 117 9.00000 15.36567 70.7% - 0s 0 0 15.34876 0 118 9.00000 15.34876 70.5% - 1s 0 0 15.33466 0 118 9.00000 15.33466 70.4% - 1s 0 0 15.33321 0 118 9.00000 15.33321 70.4% - 1s 0 0 15.33169 0 118 9.00000 15.33169 70.4% - 1s 0 2 15.32997 0 118 9.00000 15.32997 70.3% - 1s Cutting planes: Clique: 118 Explored 529 nodes (32065 simplex iterations) in 3.94 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%