Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:15:18 2013 Optimize a model with 95367 rows, 6889 columns and 289338 nonzeros Presolve removed 12063 rows and 3574 columns Presolve time: 0.91s Presolved: 83304 rows, 3315 columns, 251909 nonzeros Variable types: 25 continuous, 3290 integer (3290 binary) Found heuristic solution: objective 166350.00000 Root relaxation: objective 1.367719e+05, 13875 iterations, 1.68 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 136771.904 0 10 166350.000 136771.904 17.8% - 2s H 0 0 136780.00000 136771.904 0.01% - 2s Explored 0 nodes (13907 simplex iterations) in 2.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.367800000000e+05, best bound 1.367720000000e+05, gap 0.0058%