Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:14:36 2013 Optimize a model with 91963 rows, 6724 columns and 279046 nonzeros Presolve removed 8862 rows and 3447 columns Presolve time: 0.87s Presolved: 83101 rows, 3277 columns, 251432 nonzeros Variable types: 27 continuous, 3250 integer (3250 binary) Found heuristic solution: objective 150566.00000 Root relaxation: objective 1.198291e+05, 12608 iterations, 1.38 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 119829.066 0 10 150566.000 119829.066 20.4% - 2s H 0 0 119839.00000 119829.066 0.01% - 2s Explored 0 nodes (12639 simplex iterations) in 2.58 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.198390000000e+05, best bound 1.198300000000e+05, gap 0.0075%