Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:44:19 2012 Optimize a model with 12707 rows, 17292 columns and 54889 nonzeros Presolve removed 288 rows and 3406 columns Presolve time: 0.26s Presolved: 12419 rows, 13886 columns, 50828 nonzeros Variable types: 0 continuous, 13886 integer (13886 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 3.000000e+00, 12997 iterations, 0.54 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 (12997 simplex iterations) in 0.83 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%