Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:30:07 2012 Optimize a model with 5050 rows, 143 columns and 10100 nonzeros Presolve removed 3638 rows and 0 columns Presolve time: 0.20s Presolved: 1412 rows, 143 columns, 10045 nonzeros Variable types: 0 continuous, 143 integer (143 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.821199e+01, 606 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.21199 0 142 7.00000 18.21199 160% - 0s H 0 0 8.0000000 18.21199 128% - 0s 0 0 17.98125 0 142 8.00000 17.98125 125% - 0s H 0 0 9.0000000 17.98125 100% - 0s 0 0 17.91652 0 141 9.00000 17.91652 99.1% - 0s 0 0 17.84106 0 141 9.00000 17.84106 98.2% - 0s 0 0 17.81447 0 142 9.00000 17.81447 97.9% - 1s H 0 0 10.0000000 17.81447 78.1% - 1s 0 0 17.81034 0 143 10.00000 17.81034 78.1% - 1s 0 0 17.80541 0 142 10.00000 17.80541 78.1% - 1s 0 0 17.79432 0 143 10.00000 17.79432 77.9% - 1s 0 0 17.79040 0 143 10.00000 17.79040 77.9% - 1s 0 0 17.78698 0 142 10.00000 17.78698 77.9% - 2s 0 0 17.77808 0 143 10.00000 17.77808 77.8% - 2s 0 0 17.77605 0 142 10.00000 17.77605 77.8% - 2s 0 0 17.77584 0 142 10.00000 17.77584 77.8% - 2s 0 2 17.77463 0 142 10.00000 17.77463 77.7% - 3s 228 152 13.25744 9 67 10.00000 16.61678 66.2% 83.8 5s 842 175 11.10331 7 38 10.00000 12.80843 28.1% 74.0 10s Cutting planes: Clique: 76 Explored 1030 nodes (73487 simplex iterations) in 11.25 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%