Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:09:33 2012 Optimize a model with 4332 rows, 132 columns and 8664 nonzeros Presolve removed 3116 rows and 0 columns Presolve time: 0.16s Presolved: 1216 rows, 132 columns, 8568 nonzeros Variable types: 0 continuous, 132 integer (132 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.729034e+01, 544 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.29034 0 130 8.00000 17.29034 116% - 0s H 0 0 9.0000000 17.29034 92.1% - 0s 0 0 16.82564 0 130 9.00000 16.82564 87.0% - 0s 0 0 16.77416 0 132 9.00000 16.77416 86.4% - 0s 0 0 16.75082 0 132 9.00000 16.75082 86.1% - 0s 0 0 16.74048 0 132 9.00000 16.74048 86.0% - 1s 0 0 16.72799 0 132 9.00000 16.72799 85.9% - 1s 0 0 16.70406 0 132 9.00000 16.70406 85.6% - 1s H 0 0 10.0000000 16.70406 67.0% - 1s 0 0 16.68849 0 132 10.00000 16.68849 66.9% - 1s 0 0 16.68609 0 132 10.00000 16.68609 66.9% - 1s 0 0 16.68533 0 132 10.00000 16.68533 66.9% - 2s 0 0 16.68150 0 132 10.00000 16.68150 66.8% - 2s 0 0 16.67780 0 132 10.00000 16.67780 66.8% - 2s 0 0 16.67513 0 132 10.00000 16.67513 66.8% - 2s 0 0 16.67368 0 132 10.00000 16.67368 66.7% - 2s 0 0 16.67294 0 132 10.00000 16.67294 66.7% - 2s 0 0 16.67190 0 132 10.00000 16.67190 66.7% - 3s 0 0 16.67156 0 132 10.00000 16.67156 66.7% - 3s 0 2 16.67027 0 132 10.00000 16.67027 66.7% - 3s 192 108 12.84032 10 64 10.00000 15.22240 52.2% 82.5 5s Cutting planes: Clique: 99 Explored 500 nodes (40696 simplex iterations) in 6.82 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%