Gurobi 5.0.1 (linux64) logging started Sat Dec 8 03:30:35 2012 Optimize a model with 1635 rows, 1620 columns and 5901 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 5.982534e+04, 244 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 59825.3357 0 3 - 59825.3357 - - 0s H 0 0 59836.000000 59825.3357 0.02% - 0s 0 0 59830.9885 0 2 59836.0000 59830.9885 0.01% - 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 0 nodes (249 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.983600000000e+04, best bound 5.983098849392e+04, gap 0.0084%