Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:20 2013 Optimize a model with 128 rows, 344 columns and 882 nonzeros Presolve removed 113 rows and 295 columns Presolve time: 0.00s Presolved: 15 rows, 49 columns, 98 nonzeros Variable types: 40 continuous, 9 integer (9 binary) Root relaxation: objective 5.784077e+03, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5784.07688 0 1 - 5784.07688 - - 0s H 0 0 5812.3255371 5784.07688 0.49% - 0s 0 0 5806.18667 0 4 5812.32554 5806.18667 0.11% - 0s 0 0 5812.32552 0 3 5812.32554 5812.32552 0.00% - 0s Cutting planes: Cover: 2 Flow cover: 5 Explored 0 nodes (20 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.812325537147e+03, best bound 5.812325520613e+03, gap 0.0000%