Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:15:40 2012 Optimize a model with 12997 rows, 18090 columns and 56412 nonzeros Presolve removed 301 rows and 4156 columns Presolve time: 0.25s Presolved: 12696 rows, 13934 columns, 51398 nonzeros Variable types: 0 continuous, 13934 integer (13934 binary) Found heuristic solution: objective 134.0000000 Root relaxation: objective 3.000000e+00, 8672 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% - 3s Explored 0 nodes (24649 simplex iterations) in 4.00 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%