Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:09:23 2013 Optimize a model with 76153 rows, 5929 columns and 231231 nonzeros Presolve removed 5687 rows and 3006 columns Presolve time: 0.68s Presolved: 70466 rows, 2923 columns, 213909 nonzeros Variable types: 34 continuous, 2889 integer (2889 binary) Found heuristic solution: objective 131158.00000 Root relaxation: objective 9.349032e+04, 17709 iterations, 1.57 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93490.3211 0 13 131158.000 93490.3211 28.7% - 2s H 0 0 93531.000000 93490.3211 0.04% - 2s H 0 0 93513.000000 93490.3211 0.02% - 2s H 0 0 93498.000000 93490.3211 0.01% - 2s Explored 0 nodes (17811 simplex iterations) in 2.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.349800000000e+04, best bound 9.349100000000e+04, gap 0.0075%