Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:21:08 2013 Optimize a model with 109823 rows, 7569 columns and 333036 nonzeros Presolve removed 7729 rows and 3839 columns Presolve time: 0.95s Presolved: 102094 rows, 3730 columns, 309389 nonzeros Variable types: 37 continuous, 3693 integer (3693 binary) Found heuristic solution: objective 170329.00000 Root relaxation: objective 1.201319e+05, 27274 iterations, 3.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 120131.921 0 13 170329.000 120131.921 29.5% - 4s H 0 0 120143.00000 120131.921 0.01% - 4s Explored 0 nodes (27349 simplex iterations) in 4.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.201430000000e+05, best bound 1.201320000000e+05, gap 0.0092%