Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:36 2012 Optimize a model with 984 rows, 64 columns and 1968 nonzeros Presolve removed 669 rows and 0 columns Presolve time: 0.02s Presolved: 315 rows, 64 columns, 1836 nonzeros Variable types: 0 continuous, 64 integer (64 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.095273e+01, 136 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.95273 0 58 8.00000 10.95273 36.9% - 0s 0 0 10.57018 0 60 8.00000 10.57018 32.1% - 0s 0 0 10.46596 0 61 8.00000 10.46596 30.8% - 0s 0 0 10.43586 0 61 8.00000 10.43586 30.4% - 0s 0 0 10.41722 0 61 8.00000 10.41722 30.2% - 0s 0 0 10.41621 0 61 8.00000 10.41621 30.2% - 0s 0 0 10.40626 0 60 8.00000 10.40626 30.1% - 0s 0 0 10.40536 0 61 8.00000 10.40536 30.1% - 0s 0 0 10.40536 0 61 8.00000 10.40536 30.1% - 0s 0 2 10.40521 0 61 8.00000 10.40521 30.1% - 0s Cutting planes: Clique: 40 Zero half: 3 Explored 23 nodes (1127 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%