Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:16:05 2012 Optimize a model with 11850 rows, 5700 columns and 40950 nonzeros Presolve removed 1500 rows and 0 columns Presolve time: 0.24s Presolved: 10350 rows, 5700 columns, 37350 nonzeros Variable types: 0 continuous, 5700 integer (5700 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 3.000000e+00, 9086 iterations, 1.10 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% - 3s Explored 0 nodes (19985 simplex iterations) in 3.10 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%