Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:20:03 2012 Optimize a model with 38915 rows, 35532 columns and 151338 nonzeros Presolve removed 405 rows and 5078 columns Presolve time: 0.98s Presolved: 38510 rows, 30454 columns, 144912 nonzeros Variable types: 0 continuous, 30454 integer (30454 binary) Found heuristic solution: objective 188.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 299 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 infeasible 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (299 simplex iterations) in 1.10 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%