Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:50:21 2012 Optimize a model with 17373 rows, 21462 columns and 72852 nonzeros Presolve removed 325 rows and 4528 columns Presolve time: 0.37s Presolved: 17048 rows, 16934 columns, 67362 nonzeros Variable types: 0 continuous, 16934 integer (16934 binary) Found heuristic solution: objective 146.0000000 Root relaxation: objective 3.000000e+00, 11285 iterations, 0.96 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 22 146.00000 3.00000 97.9% - 4s H 0 0 3.0000000 3.00000 0.0% - 4s Explored 0 nodes (31750 simplex iterations) in 4.75 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%