Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:49 2013 Optimize a model with 220 rows, 1170 columns and 2760 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 210 rows, 1160 columns, 2650 nonzeros Variable types: 1120 continuous, 40 integer (40 binary) Root relaxation: objective 1.836170e+04, 134 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18361.7044 0 3 - 18361.7044 - - 0s 0 0 18367.0059 0 4 - 18367.0059 - - 0s 0 0 18381.2294 0 3 - 18381.2294 - - 0s 0 0 18392.8220 0 12 - 18392.8220 - - 0s 0 0 18412.0761 0 3 - 18412.0761 - - 0s 0 0 18412.0761 0 3 - 18412.0761 - - 0s H 0 0 18417.639282 18412.0761 0.03% - 0s 0 0 18417.6393 0 1 18417.6393 18417.6393 0.0% - 0s Cutting planes: Flow cover: 1 Explored 1 nodes (370 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.841763928198e+04, best bound 1.841763928198e+04, gap 0.0%