Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:50:32 2012 Optimize a model with 29699 rows, 32580 columns and 120778 nonzeros Presolve removed 749 rows and 4862 columns Presolve time: 0.69s Presolved: 28950 rows, 27718 columns, 113796 nonzeros Variable types: 0 continuous, 27718 integer (27718 binary) Found heuristic solution: objective 180.0000000 Root relaxation: objective 3.000000e+00, 17539 iterations, 2.35 seconds Total elapsed time = 10.39s 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% - 13s Explored 0 nodes (56676 simplex iterations) in 13.87 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%