Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:39 2013 Optimize a model with 405 rows, 1050 columns and 81102 nonzeros Presolve removed 53 rows and 51 columns Presolve time: 0.84s Presolved: 352 rows, 999 columns, 77223 nonzeros Variable types: 0 continuous, 999 integer (999 binary) Found heuristic solution: objective 845.0000000 Root relaxation: objective 7.420000e+02, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 742.0000000 742.00000 0.0% - 0s Explored 0 nodes (53 simplex iterations) in 0.86 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.420000000000e+02, best bound 7.420000000000e+02, gap 0.0%