Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:22 2013 Optimize a model with 52 rows, 158 columns and 924 nonzeros Presolve removed 22 rows and 23 columns Presolve time: 0.00s Presolved: 30 rows, 135 columns, 780 nonzeros Variable types: 123 continuous, 12 integer (12 binary) Root relaxation: objective 5.737611e+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 5737.61109 0 3 - 5737.61109 - - 0s 0 0 5741.68934 0 4 - 5741.68934 - - 0s 0 0 5741.79086 0 4 - 5741.79086 - - 0s 0 0 5753.17692 0 3 - 5753.17692 - - 0s 0 0 5753.91303 0 1 - 5753.91303 - - 0s H 0 0 5753.9274879 5753.91303 0.00% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (39 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.753927487904e+03, best bound 5.753913028197e+03, gap 0.0003%