Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:18:59 2012 Optimize a model with 4701 rows, 137 columns and 9402 nonzeros Presolve removed 3371 rows and 0 columns Presolve time: 0.18s Presolved: 1330 rows, 137 columns, 9503 nonzeros Variable types: 0 continuous, 137 integer (137 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.761252e+01, 675 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.61252 0 137 6.00000 17.61252 194% - 0s H 0 0 7.0000000 17.61252 152% - 0s 0 0 17.23685 0 136 7.00000 17.23685 146% - 0s H 0 0 9.0000000 17.23685 91.5% - 0s 0 0 17.13445 0 137 9.00000 17.13445 90.4% - 0s 0 0 17.06702 0 137 9.00000 17.06702 89.6% - 0s 0 0 17.03182 0 137 9.00000 17.03182 89.2% - 1s 0 0 17.01823 0 137 9.00000 17.01823 89.1% - 1s H 0 0 10.0000000 17.01823 70.2% - 1s 0 0 17.01294 0 136 10.00000 17.01294 70.1% - 1s 0 0 17.00818 0 137 10.00000 17.00818 70.1% - 1s 0 0 16.99353 0 137 10.00000 16.99353 69.9% - 1s 0 0 16.99113 0 137 10.00000 16.99113 69.9% - 2s 0 0 16.98113 0 137 10.00000 16.98113 69.8% - 2s 0 0 16.97306 0 137 10.00000 16.97306 69.7% - 2s 0 0 16.97122 0 137 10.00000 16.97122 69.7% - 2s 0 0 16.97094 0 137 10.00000 16.97094 69.7% - 2s 0 2 16.96891 0 137 10.00000 16.96891 69.7% - 3s 197 119 13.64612 8 74 10.00000 15.87496 58.7% 88.6 5s H 540 53 11.0000000 12.68216 15.3% 80.7 7s Cutting planes: Clique: 92 Explored 594 nodes (46058 simplex iterations) in 7.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%