Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:11:43 2012 Optimize a model with 4443 rows, 133 columns and 8886 nonzeros Presolve removed 3204 rows and 0 columns Presolve time: 0.16s Presolved: 1239 rows, 133 columns, 8799 nonzeros Variable types: 0 continuous, 133 integer (133 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.718672e+01, 611 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.18672 0 130 6.00000 17.18672 186% - 0s H 0 0 7.0000000 17.18672 146% - 0s 0 0 16.83210 0 130 7.00000 16.83210 140% - 0s H 0 0 8.0000000 16.83210 110% - 0s 0 0 16.74097 0 133 8.00000 16.74097 109% - 0s H 0 0 9.0000000 16.74097 86.0% - 0s 0 0 16.65623 0 132 9.00000 16.65623 85.1% - 0s 0 0 16.63158 0 132 9.00000 16.63158 84.8% - 1s 0 0 16.62325 0 132 9.00000 16.62325 84.7% - 1s H 0 0 10.0000000 16.62325 66.2% - 1s 0 0 16.61711 0 132 10.00000 16.61711 66.2% - 1s 0 0 16.60498 0 132 10.00000 16.60498 66.0% - 1s 0 0 16.58863 0 132 10.00000 16.58863 65.9% - 1s 0 0 16.58647 0 132 10.00000 16.58647 65.9% - 2s 0 0 16.58340 0 133 10.00000 16.58340 65.8% - 2s 0 0 16.57476 0 132 10.00000 16.57476 65.7% - 2s 0 0 16.57349 0 133 10.00000 16.57349 65.7% - 2s 0 0 16.57297 0 133 10.00000 16.57297 65.7% - 2s 0 0 16.57282 0 133 10.00000 16.57282 65.7% - 3s 0 2 16.57249 0 133 10.00000 16.57249 65.7% - 3s 244 116 cutoff 23 10.00000 15.00839 50.1% 80.4 5s Cutting planes: Clique: 136 Explored 507 nodes (40857 simplex iterations) in 6.59 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%