Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:09:22 2012 Optimize a model with 4314 rows, 131 columns and 8628 nonzeros Presolve removed 3065 rows and 0 columns Presolve time: 0.15s Presolved: 1249 rows, 131 columns, 8698 nonzeros Variable types: 0 continuous, 131 integer (131 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.708213e+01, 618 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17.08213 0 129 7.00000 17.08213 144% - 0s H 0 0 8.0000000 17.08213 114% - 0s 0 0 16.84102 0 128 8.00000 16.84102 111% - 0s 0 0 16.65820 0 129 8.00000 16.65820 108% - 0s 0 0 16.53797 0 129 8.00000 16.53797 107% - 0s 0 0 16.49947 0 129 8.00000 16.49947 106% - 0s 0 0 16.46446 0 129 8.00000 16.46446 106% - 1s 0 0 16.44811 0 129 8.00000 16.44811 106% - 1s H 0 0 9.0000000 16.44811 82.8% - 1s 0 0 16.44541 0 129 9.00000 16.44541 82.7% - 1s 0 0 16.44540 0 129 9.00000 16.44540 82.7% - 1s 0 0 16.44535 0 129 9.00000 16.44535 82.7% - 1s 0 0 16.44491 0 129 9.00000 16.44491 82.7% - 2s 0 2 16.44487 0 129 9.00000 16.44487 82.7% - 2s * 198 115 11 10.0000000 15.60687 56.1% 75.1 3s 418 118 11.77397 9 40 10.00000 13.30993 33.1% 79.6 5s Cutting planes: Clique: 121 Explored 549 nodes (41479 simplex iterations) in 5.55 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%