Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:16:06 2012 Optimize a model with 40993 rows, 39800 columns and 161785 nonzeros Presolve removed 24 rows and 4380 columns Presolve time: 0.93s Presolved: 40969 rows, 35420 columns, 156995 nonzeros Variable types: 0 continuous, 35420 integer (35420 binary) Found heuristic solution: objective 199.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 404 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 318 3.00000 2.00000 33.3% - 1s 0 0 infeasible 0 3.00000 2.00000 33.3% - 1s Explored 0 nodes (741 simplex iterations) in 1.16 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%