Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:47 2013 Optimize a model with 432 rows, 846 columns and 2890 nonzeros Presolve removed 80 rows and 140 columns Presolve time: 0.03s Presolved: 352 rows, 706 columns, 2097 nonzeros Variable types: 364 continuous, 342 integer (342 binary) Root relaxation: objective 5.786554e+03, 15 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5786.55431 0 2 - 5786.55431 - - 0s 0 0 5788.22328 0 3 - 5788.22328 - - 0s 0 0 5795.27669 0 3 - 5795.27669 - - 0s 0 0 5797.87370 0 3 - 5797.87370 - - 0s 0 0 5798.87732 0 3 - 5798.87732 - - 0s 0 0 5799.33058 0 3 - 5799.33058 - - 0s 0 0 5799.54694 0 3 - 5799.54694 - - 0s 0 0 5799.75694 0 3 - 5799.75694 - - 0s 0 0 5799.95934 0 3 - 5799.95934 - - 0s 0 0 5800.15631 0 3 - 5800.15631 - - 0s 0 0 5800.34814 0 3 - 5800.34814 - - 0s 0 0 5800.53512 0 3 - 5800.53512 - - 0s 0 0 5800.71750 0 3 - 5800.71750 - - 0s 0 0 5800.89550 0 3 - 5800.89550 - - 0s 0 2 5800.89550 0 3 - 5800.89550 - - 0s * 9 3 5 5812.3255371 5812.27458 0.00% 28.4 0s Cutting planes: Gomory: 1 Cover: 4 Flow cover: 1 Explored 10 nodes (341 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.812325537147e+03, best bound 5.812274582300e+03, gap 0.0009%