Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:11:00 2013 Optimize a model with 82239 rows, 6241 columns and 249640 nonzeros Presolve removed 12855 rows and 3273 columns Presolve time: 0.78s Presolved: 69384 rows, 2968 columns, 209742 nonzeros Variable types: 21 continuous, 2947 integer (2947 binary) Found heuristic solution: objective 148913.00000 Root relaxation: objective 1.236740e+05, 10900 iterations, 1.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 123674.009 0 7 148913.000 123674.009 16.9% - 2s H 0 0 123687.00000 123674.009 0.01% - 2s H 0 0 123683.00000 123674.009 0.01% - 2s Explored 0 nodes (10912 simplex iterations) in 2.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.236830000000e+05, best bound 1.236740090944e+05, gap 0.0073%