Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:18 2013 Optimize a model with 540 rows, 1420 columns and 3610 nonzeros Presolve removed 30 rows and 20 columns Presolve time: 0.01s Presolved: 510 rows, 1400 columns, 3180 nonzeros Variable types: 1210 continuous, 190 integer (190 binary) Root relaxation: objective 1.836170e+04, 218 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18361.7044 0 1 - 18361.7044 - - 0s 0 0 18381.2294 0 1 - 18381.2294 - - 0s 0 0 18381.2294 0 1 - 18381.2294 - - 0s 0 0 18383.0668 0 1 - 18383.0668 - - 0s 0 0 18383.8229 0 1 - 18383.8229 - - 0s H 0 0 18423.142900 18383.8229 0.21% - 0s 0 0 18383.8229 0 1 18423.1429 18383.8229 0.21% - 0s 0 0 18383.8229 0 1 18423.1429 18383.8229 0.21% - 0s 0 0 18396.2265 0 5 18423.1429 18396.2265 0.15% - 0s 0 0 18417.9808 0 2 18423.1429 18417.9808 0.03% - 0s H 0 0 18418.150058 18417.9808 0.00% - 0s Cutting planes: Gomory: 2 Explored 0 nodes (373 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.841815005800e+04, best bound 1.841798075721e+04, gap 0.0009%