Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:41 2012 Optimize a model with 1052 rows, 66 columns and 2104 nonzeros Presolve removed 737 rows and 0 columns Presolve time: 0.02s Presolved: 315 rows, 66 columns, 1835 nonzeros Variable types: 0 continuous, 66 integer (66 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.117075e+01, 162 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11.17075 0 57 7.00000 11.17075 59.6% - 0s 0 0 10.80597 0 62 7.00000 10.80597 54.4% - 0s H 0 0 8.0000000 10.80597 35.1% - 0s 0 0 10.74640 0 65 8.00000 10.74640 34.3% - 0s 0 0 10.73389 0 66 8.00000 10.73389 34.2% - 0s 0 0 10.73379 0 66 8.00000 10.73379 34.2% - 0s 0 2 10.72901 0 66 8.00000 10.72901 34.1% - 0s Cutting planes: Clique: 35 Zero half: 4 Explored 38 nodes (1462 simplex iterations) in 0.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%