Gurobi 5.0.1 (linux64) logging started Sat Dec 8 03:30:36 2012 Optimize a model with 1635 rows, 1620 columns and 5903 nonzeros Presolve removed 212 rows and 68 columns Presolve time: 0.02s Presolved: 1423 rows, 1552 columns, 5434 nonzeros Variable types: 1382 continuous, 170 integer (170 binary) Root relaxation: objective 5.754553e+04, 239 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 57545.5279 0 1 - 57545.5279 - - 0s H 0 0 58093.000000 57545.5279 0.94% - 0s * 0 0 0 57832.000000 57832.0000 0.0% - 0s Cutting planes: Gomory: 1 Flow cover: 3 Explored 0 nodes (245 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.783200000000e+04, best bound 5.783200000000e+04, gap 0.0%