Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:10 2013 Optimize a model with 48 rows, 182 columns and 742 nonzeros Presolve removed 22 rows and 81 columns Presolve time: 0.00s Presolved: 26 rows, 101 columns, 600 nonzeros Variable types: 91 continuous, 10 integer (10 binary) Root relaxation: objective 5.420106e+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 5420.10604 0 3 - 5420.10604 - - 0s 0 0 5428.45150 0 5 - 5428.45150 - - 0s 0 0 5428.60719 0 5 - 5428.60719 - - 0s 0 0 5428.63087 0 5 - 5428.63087 - - 0s 0 0 5428.63833 0 5 - 5428.63833 - - 0s 0 0 5441.39382 0 1 - 5441.39382 - - 0s 0 0 5441.39382 0 1 - 5441.39382 - - 0s H 0 0 5441.5746300 5441.39382 0.00% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (50 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.441574629950e+03, best bound 5.441393820953e+03, gap 0.0033%