Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:16:51 2012 Optimize a model with 4584 rows, 136 columns and 9168 nonzeros Presolve removed 3272 rows and 0 columns Presolve time: 0.16s Presolved: 1312 rows, 136 columns, 9250 nonzeros Variable types: 0 continuous, 136 integer (136 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.794925e+01, 654 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.94925 0 134 7.00000 17.94925 156% - 0s H 0 0 8.0000000 17.94925 124% - 0s H 0 0 9.0000000 17.94925 99.4% - 0s 0 0 17.28907 0 135 9.00000 17.28907 92.1% - 0s 0 0 17.20678 0 134 9.00000 17.20678 91.2% - 0s H 0 0 10.0000000 17.20678 72.1% - 0s 0 0 17.16127 0 135 10.00000 17.16127 71.6% - 0s 0 0 17.10038 0 134 10.00000 17.10038 71.0% - 1s 0 0 17.04048 0 133 10.00000 17.04048 70.4% - 1s 0 0 16.98874 0 135 10.00000 16.98874 69.9% - 1s 0 0 16.96693 0 135 10.00000 16.96693 69.7% - 1s 0 0 16.96325 0 136 10.00000 16.96325 69.6% - 1s 0 0 16.95993 0 135 10.00000 16.95993 69.6% - 2s 0 0 16.95963 0 135 10.00000 16.95963 69.6% - 2s 0 0 16.95271 0 135 10.00000 16.95271 69.5% - 2s 0 0 16.94393 0 134 10.00000 16.94393 69.4% - 2s 0 0 16.93172 0 136 10.00000 16.93172 69.3% - 2s 0 0 16.92160 0 136 10.00000 16.92160 69.2% - 3s 0 0 16.91983 0 135 10.00000 16.91983 69.2% - 3s 0 0 16.91959 0 136 10.00000 16.91959 69.2% - 3s 0 0 16.91930 0 136 10.00000 16.91930 69.2% - 3s 0 0 16.91930 0 136 10.00000 16.91930 69.2% - 3s 0 2 16.91852 0 136 10.00000 16.91852 69.2% - 4s 118 88 13.80769 4 64 10.00000 16.39042 63.9% 86.9 5s Cutting planes: Clique: 175 Explored 702 nodes (52464 simplex iterations) in 9.08 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%