Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:45 2013 Optimize a model with 98854 rows, 7056 columns and 299880 nonzeros Presolve removed 4913 rows and 3545 columns Presolve time: 0.84s Presolved: 93941 rows, 3511 columns, 285224 nonzeros Variable types: 42 continuous, 3469 integer (3469 binary) Found heuristic solution: objective 163953.00000 Root relaxation: objective 1.134236e+05, 36084 iterations, 4.64 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 113423.562 0 9 163953.000 113423.562 30.8% - 6s H 0 0 113431.00000 113423.562 0.01% - 6s Explored 0 nodes (36566 simplex iterations) in 6.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.134310000000e+05, best bound 1.134240000000e+05, gap 0.0062%