Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:43 2013 Optimize a model with 64 rows, 1064 columns and 11142 nonzeros Presolve removed 22 rows and 24 columns Presolve time: 0.03s Presolved: 42 rows, 1040 columns, 10096 nonzeros Variable types: 1022 continuous, 18 integer (18 binary) Root relaxation: objective 5.784077e+03, 12 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 3 - 5784.07688 - - 0s 0 0 5786.39776 0 3 - 5786.39776 - - 0s 0 0 5804.09948 0 6 - 5804.09948 - - 0s 0 0 5808.15113 0 3 - 5808.15113 - - 0s 0 0 5808.15113 0 3 - 5808.15113 - - 0s H 0 0 5812.3255371 5808.15113 0.07% - 0s 0 0 5811.02575 0 3 5812.32554 5811.02575 0.02% - 0s 0 0 5811.04854 0 3 5812.32554 5811.04854 0.02% - 0s 0 0 5812.13656 0 3 5812.32554 5812.13656 0.00% - 0s Cutting planes: Implied bound: 1 Flow cover: 2 Explored 0 nodes (94 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.812325537147e+03, best bound 5.812136556279e+03, gap 0.0033%