Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:17:02 2012 Optimize a model with 4160 rows, 3306 columns and 15502 nonzeros Presolve removed 122 rows and 344 columns Presolve time: 0.11s Presolved: 4038 rows, 2962 columns, 14733 nonzeros Variable types: 0 continuous, 2962 integer (2962 binary) Found heuristic solution: objective 57.0000000 Root relaxation: objective 3.000000e+00, 3041 iterations, 0.14 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% - 0s Explored 0 nodes (8875 simplex iterations) in 0.61 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%