Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:49:01 2012 Optimize a model with 11850 rows, 6320 columns and 41554 nonzeros Presolve removed 636 rows and 316 columns Presolve time: 0.22s Presolved: 11214 rows, 6004 columns, 39737 nonzeros Variable types: 0 continuous, 6004 integer (6004 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 3.000000e+00, 11099 iterations, 1.26 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 (16154 simplex iterations) in 2.43 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%