Gurobi 5.0.1 (linux64) logging started Fri Nov 16 19:51:26 2012 Optimize a model with 12837 rows, 17292 columns and 55149 nonzeros Presolve removed 264 rows and 2 columns Presolve time: 0.22s Presolved: 12704 rows, 17290 columns, 71463 nonzeros Variable types: 0 continuous, 17290 integer (17290 binary) Found heuristic solution: objective 131.0000000 Root relaxation: objective 3.000000e+00, 7746 iterations, 0.45 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 (20526 simplex iterations) in 3.01 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%