Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:39 2013 Optimize a model with 98854 rows, 7056 columns and 299880 nonzeros Presolve removed 10924 rows and 3634 columns Presolve time: 0.98s Presolved: 87930 rows, 3422 columns, 266208 nonzeros Variable types: 30 continuous, 3392 integer (3392 binary) Found heuristic solution: objective 151170.00000 Root relaxation: objective 1.122319e+05, 18448 iterations, 2.21 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 112231.850 0 9 151170.000 112231.850 25.8% - 3s H 0 0 112248.00000 112231.850 0.01% - 3s H 0 0 112240.00000 112231.850 0.01% - 3s Explored 0 nodes (18503 simplex iterations) in 3.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.122400000000e+05, best bound 1.122320000000e+05, gap 0.0071%