Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:39:21 2013 Optimize a model with 320 rows, 11350 columns and 122190 nonzeros Presolve removed 10 rows and 250 columns Presolve time: 0.26s Presolved: 310 rows, 11100 columns, 112190 nonzeros Variable types: 11010 continuous, 90 integer (90 binary) Root relaxation: objective 2.199252e+04, 144 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 14 - 21992.5209 - - 0s 0 0 21992.8054 0 14 - 21992.8054 - - 0s 0 0 22057.7158 0 13 - 22057.7158 - - 0s 0 0 22057.7158 0 13 - 22057.7158 - - 0s H 0 0 22460.115178 22057.7158 1.79% - 0s 0 2 22117.3559 0 6 22460.1152 22117.3559 1.53% - 0s * 10 7 8 22134.958679 22132.2003 0.01% 14.1 0s Cutting planes: Flow cover: 2 Explored 13 nodes (651 simplex iterations) in 0.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213495867877e+04, best bound 2.213379657363e+04, gap 0.0053%