Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:10:07 2013 Optimize a model with 79157 rows, 6084 columns and 240318 nonzeros Presolve removed 5666 rows and 3086 columns Presolve time: 0.63s Presolved: 73491 rows, 2998 columns, 222722 nonzeros Variable types: 30 continuous, 2968 integer (2968 binary) Found heuristic solution: objective 147571.00000 Root relaxation: objective 1.143553e+05, 17563 iterations, 1.86 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 114355.333 0 11 147571.000 114355.333 22.5% - 2s H 0 0 114367.00000 114355.333 0.01% - 2s H 0 0 114361.00000 114355.333 0.00% - 2s Explored 0 nodes (17692 simplex iterations) in 2.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.143610000000e+05, best bound 1.143560000000e+05, gap 0.0044%