Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:17:56 2013 Optimize a model with 102425 rows, 7225 columns and 310675 nonzeros Presolve removed 6778 rows and 3653 columns Presolve time: 1.03s Presolved: 95647 rows, 3572 columns, 290302 nonzeros Variable types: 41 continuous, 3531 integer (3531 binary) Found heuristic solution: objective 154393.00000 Root relaxation: objective 1.144937e+05, 34308 iterations, 4.47 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 114493.659 0 13 154393.000 114493.659 25.8% - 5s H 0 0 114506.00000 114493.659 0.01% - 6s H 0 0 114504.00000 114493.659 0.01% - 6s Explored 0 nodes (34381 simplex iterations) in 6.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.145040000000e+05, best bound 1.144940000000e+05, gap 0.0087%