Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:54:03 2012 Optimize a model with 3189 rows, 114 columns and 6378 nonzeros Presolve removed 2247 rows and 0 columns Presolve time: 0.10s Presolved: 942 rows, 114 columns, 6296 nonzeros Variable types: 0 continuous, 114 integer (114 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.580912e+01, 512 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.80912 0 112 6.00000 15.80912 163% - 0s H 0 0 7.0000000 15.80912 126% - 0s H 0 0 8.0000000 15.80912 97.6% - 0s 0 0 15.57256 0 113 8.00000 15.57256 94.7% - 0s 0 0 15.45797 0 114 8.00000 15.45797 93.2% - 0s 0 0 15.41447 0 114 8.00000 15.41447 92.7% - 0s H 0 0 9.0000000 15.41447 71.3% - 0s 0 0 15.38954 0 113 9.00000 15.38954 71.0% - 0s 0 0 15.38598 0 114 9.00000 15.38598 71.0% - 0s 0 0 15.37863 0 114 9.00000 15.37863 70.9% - 1s 0 0 15.35343 0 113 9.00000 15.35343 70.6% - 1s 0 0 15.32079 0 114 9.00000 15.32079 70.2% - 1s 0 0 15.32000 0 114 9.00000 15.32000 70.2% - 1s 0 0 15.31922 0 114 9.00000 15.31922 70.2% - 1s H 0 0 10.0000000 15.31922 53.2% - 1s 0 0 15.31898 0 114 10.00000 15.31898 53.2% - 1s 0 2 15.31706 0 114 10.00000 15.31706 53.2% - 2s Cutting planes: Clique: 69 Explored 228 nodes (17749 simplex iterations) in 3.22 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%