Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:55:50 2012 Optimize a model with 3359 rows, 117 columns and 6718 nonzeros Presolve removed 2403 rows and 0 columns Presolve time: 0.11s Presolved: 956 rows, 117 columns, 6578 nonzeros Variable types: 0 continuous, 117 integer (117 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.625728e+01, 461 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.25728 0 110 6.00000 16.25728 171% - 0s H 0 0 8.0000000 16.25728 103% - 0s 0 0 15.75706 0 117 8.00000 15.75706 97.0% - 0s 0 0 15.72648 0 116 8.00000 15.72648 96.6% - 0s H 0 0 9.0000000 15.72648 74.7% - 0s 0 0 15.71048 0 116 9.00000 15.71048 74.6% - 0s 0 0 15.70023 0 116 9.00000 15.70023 74.4% - 0s 0 0 15.69599 0 116 9.00000 15.69599 74.4% - 0s H 0 0 10.0000000 15.69599 57.0% - 0s 0 0 15.69515 0 116 10.00000 15.69515 57.0% - 1s 0 0 15.69474 0 116 10.00000 15.69474 56.9% - 1s 0 2 15.69361 0 116 10.00000 15.69361 56.9% - 1s Cutting planes: Clique: 78 Zero half: 2 Explored 284 nodes (21166 simplex iterations) in 2.93 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%