Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:40:42 2012 Optimize a model with 13130 rows, 17030 columns and 55900 nonzeros Presolve removed 552 rows and 4160 columns Presolve time: 0.25s Presolved: 12578 rows, 12870 columns, 50440 nonzeros Variable types: 0 continuous, 12870 integer (12870 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 3.000000e+00, 12684 iterations, 0.81 seconds 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% - 2s Explored 0 nodes (19193 simplex iterations) in 2.04 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%