Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:44:56 2012 Optimize a model with 30443 rows, 31506 columns and 121951 nonzeros Presolve removed 710 rows and 2 columns Presolve time: 0.72s Presolved: 29910 rows, 31504 columns, 151174 nonzeros Variable types: 0 continuous, 31504 integer (31504 binary) Found heuristic solution: objective 177.0000000 Root relaxation: objective 3.000000e+00, 24487 iterations, 4.69 seconds Total elapsed time = 14.90s Total elapsed time = 16.85s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 18s Explored 0 nodes (66611 simplex iterations) in 18.42 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%