Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:22:26 2012 Optimize a model with 4834 rows, 139 columns and 9668 nonzeros Presolve removed 3505 rows and 0 columns Presolve time: 0.18s Presolved: 1329 rows, 139 columns, 9582 nonzeros Variable types: 0 continuous, 139 integer (139 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.784186e+01, 585 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.84186 0 133 7.00000 17.84186 155% - 0s H 0 0 8.0000000 17.84186 123% - 0s 0 0 17.20591 0 139 8.00000 17.20591 115% - 0s H 0 0 9.0000000 17.20591 91.2% - 0s 0 0 17.13187 0 139 9.00000 17.13187 90.4% - 0s 0 0 17.05796 0 139 9.00000 17.05796 89.5% - 0s 0 0 17.05209 0 138 9.00000 17.05209 89.5% - 1s 0 0 17.04573 0 139 9.00000 17.04573 89.4% - 1s 0 0 17.03868 0 139 9.00000 17.03868 89.3% - 1s 0 0 17.03226 0 139 9.00000 17.03226 89.2% - 1s 0 0 17.02552 0 139 9.00000 17.02552 89.2% - 1s 0 0 17.02361 0 139 9.00000 17.02361 89.2% - 2s 0 0 17.01085 0 139 9.00000 17.01085 89.0% - 2s 0 0 17.00825 0 139 9.00000 17.00825 89.0% - 2s 0 0 17.00769 0 139 9.00000 17.00769 89.0% - 2s 0 0 17.00647 0 138 9.00000 17.00647 89.0% - 2s 0 0 17.00602 0 139 9.00000 17.00602 89.0% - 3s 0 0 17.00555 0 139 9.00000 17.00555 89.0% - 3s 0 2 17.00542 0 139 9.00000 17.00542 88.9% - 3s 200 153 10.98734 10 33 9.00000 16.28393 80.9% 78.2 5s H 600 234 10.0000000 14.10285 41.0% 68.6 10s 673 282 12.05534 40 57 10.00000 13.96759 39.7% 92.3 15s Cutting planes: Clique: 66 Explored 1390 nodes (95556 simplex iterations) in 17.91 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%