Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:36:11 2013 Optimize a model with 147536 rows, 9216 columns and 446976 nonzeros Presolve removed 11167 rows and 4690 columns Presolve time: 1.80s Presolved: 136369 rows, 4526 columns, 412641 nonzeros Variable types: 38 continuous, 4488 integer (4488 binary) Found heuristic solution: objective 214941.00000 Root relaxation: objective 1.625266e+05, 28783 iterations, 3.58 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162526.607 0 12 214941.000 162526.607 24.4% - 5s H 0 0 162544.00000 162526.607 0.01% - 5s H 0 0 162543.00000 162526.607 0.01% - 5s H 0 0 162538.00000 162526.607 0.01% - 6s Explored 0 nodes (28820 simplex iterations) in 6.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.625380000000e+05, best bound 1.625270000000e+05, gap 0.0068%