Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:30:18 2013 Optimize a model with 134137 rows, 8649 columns and 406503 nonzeros Presolve removed 10993 rows and 4412 columns Presolve time: 1.62s Presolved: 123144 rows, 4237 columns, 372575 nonzeros Variable types: 35 continuous, 4202 integer (4202 binary) Found heuristic solution: objective 189787.00000 Root relaxation: objective 1.397013e+05, 24649 iterations, 3.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 139701.267 0 20 189787.000 139701.267 26.4% - 5s H 0 0 139712.00000 139701.267 0.01% - 5s Explored 0 nodes (24893 simplex iterations) in 5.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.397120000000e+05, best bound 1.397020000000e+05, gap 0.0072%