Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:53:40 2012 Optimize a model with 3161 rows, 113 columns and 6322 nonzeros Presolve removed 2283 rows and 0 columns Presolve time: 0.11s Presolved: 878 rows, 113 columns, 6040 nonzeros Variable types: 0 continuous, 113 integer (113 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.533884e+01, 434 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.33884 0 109 7.00000 15.33884 119% - 0s 0 0 14.94774 0 113 7.00000 14.94774 114% - 0s H 0 0 8.0000000 14.94774 86.8% - 0s 0 0 14.88249 0 111 8.00000 14.88249 86.0% - 0s 0 0 14.85553 0 113 8.00000 14.85553 85.7% - 0s 0 0 14.82653 0 113 8.00000 14.82653 85.3% - 0s 0 0 14.82541 0 113 8.00000 14.82541 85.3% - 0s 0 0 14.82532 0 113 8.00000 14.82532 85.3% - 0s 0 0 14.82528 0 113 8.00000 14.82528 85.3% - 1s H 0 0 9.0000000 14.82528 64.7% - 1s 0 2 14.82200 0 113 9.00000 14.82200 64.7% - 1s * 327 46 6 10.0000000 12.24276 22.4% 56.9 2s Cutting planes: Clique: 69 Zero half: 1 Explored 374 nodes (20543 simplex iterations) in 2.47 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%