Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:07:12 2013 Optimize a model with 70375 rows, 5625 columns and 213750 nonzeros Presolve removed 5655 rows and 2859 columns Presolve time: 0.58s Presolved: 64720 rows, 2766 columns, 196391 nonzeros Variable types: 31 continuous, 2735 integer (2735 binary) Found heuristic solution: objective 140315.00000 Root relaxation: objective 1.128497e+05, 18068 iterations, 1.88 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 112849.708 0 9 140315.000 112849.708 19.6% - 2s H 0 0 112868.00000 112849.708 0.02% - 2s H 0 0 112866.00000 112849.708 0.01% - 2s H 0 0 112859.00000 112849.708 0.01% - 2s Explored 0 nodes (18157 simplex iterations) in 2.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.128590000000e+05, best bound 1.128500000000e+05, gap 0.0080%