Gurobi 5.0.1 (linux64) logging started Tue Apr 23 22:02:14 2013 Optimize a model with 2650 rows, 2600 columns and 10100 nonzeros Presolve removed 2231 rows and 2133 columns Presolve time: 0.01s Presolved: 419 rows, 467 columns, 1173 nonzeros Variable types: 419 continuous, 48 integer (48 binary) Root relaxation: objective 8.514953e+05, 198 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 851495.32500 851495.325 0.0% - 0s Explored 0 nodes (198 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.514953250000e+05, best bound 8.514953250000e+05, gap 0.0%