Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:58:24 2012 Optimize a model with 3623 rows, 120 columns and 7246 nonzeros Presolve removed 2602 rows and 0 columns Presolve time: 0.14s Presolved: 1021 rows, 120 columns, 7323 nonzeros Variable types: 0 continuous, 120 integer (120 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 1.610108e+01, 542 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 16.10108 0 118 6.00000 16.10108 168% - 0s H 0 0 7.0000000 16.10108 130% - 0s 0 0 15.90985 0 119 7.00000 15.90985 127% - 0s H 0 0 8.0000000 15.90985 98.9% - 0s 0 0 15.79314 0 120 8.00000 15.79314 97.4% - 0s 0 0 15.74851 0 119 8.00000 15.74851 96.9% - 0s 0 0 15.72178 0 117 8.00000 15.72178 96.5% - 0s 0 0 15.70060 0 119 8.00000 15.70060 96.3% - 0s 0 0 15.65329 0 120 8.00000 15.65329 95.7% - 1s H 0 0 9.0000000 15.65329 73.9% - 1s H 0 0 10.0000000 15.65329 56.5% - 1s 0 0 15.63060 0 120 10.00000 15.63060 56.3% - 1s 0 0 15.62985 0 120 10.00000 15.62985 56.3% - 1s 0 0 15.62975 0 120 10.00000 15.62975 56.3% - 1s 0 0 15.62974 0 120 10.00000 15.62974 56.3% - 1s 0 2 15.62965 0 120 10.00000 15.62965 56.3% - 2s Cutting planes: Clique: 70 Zero half: 1 Explored 229 nodes (19442 simplex iterations) in 3.29 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%