Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:10:08 2012 Optimize a model with 11570 rows, 17822 columns and 51868 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.18s Presolved: 11701 rows, 17820 columns, 69383 nonzeros Variable types: 0 continuous, 17820 integer (17820 binary) Found heuristic solution: objective 133.0000000 Root relaxation: objective 2.000000e+00, 6914 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 88 133.00000 2.00000 98.5% - 0s H 0 0 103.0000000 2.00000 98.1% - 0s H 0 0 3.0000000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 1 Zero half: 4 Explored 0 nodes (23720 simplex iterations) in 0.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%