Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:44:01 2012 Optimize a model with 13909 rows, 17030 columns and 58108 nonzeros Presolve removed 287 rows and 3252 columns Presolve time: 0.27s Presolved: 13622 rows, 13778 columns, 53998 nonzeros Variable types: 0 continuous, 13778 integer (13778 binary) Found heuristic solution: objective 130.0000000 Root relaxation: objective 3.000000e+00, 9843 iterations, 0.64 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% - 4s Explored 0 nodes (25185 simplex iterations) in 4.56 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%