Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:19 2013 Optimize a model with 1080 rows, 2265 columns and 7525 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.12s Presolved: 1075 rows, 2260 columns, 6520 nonzeros Variable types: 1260 continuous, 1000 integer (1000 binary) Root relaxation: objective 1.174557e+04, 53 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11745.5748 0 2 - 11745.5748 - - 0s 0 0 11750.2736 0 2 - 11750.2736 - - 0s 0 0 11751.9830 0 2 - 11751.9830 - - 0s 0 0 11753.2342 0 2 - 11753.2342 - - 0s 0 0 11754.0789 0 4 - 11754.0789 - - 0s 0 0 11754.2507 0 2 - 11754.2507 - - 0s 0 0 11754.9069 0 4 - 11754.9069 - - 0s 0 0 11755.1187 0 2 - 11755.1187 - - 0s 0 0 11755.8822 0 2 - 11755.8822 - - 0s 0 0 11755.9930 0 7 - 11755.9930 - - 0s 0 0 11756.5672 0 2 - 11756.5672 - - 0s 0 0 11756.8069 0 4 - 11756.8069 - - 0s 0 0 11757.1905 0 2 - 11757.1905 - - 0s 0 0 11757.4804 0 9 - 11757.4804 - - 0s 0 0 11757.7638 0 2 - 11757.7638 - - 0s 0 0 11757.7986 0 3 - 11757.7986 - - 0s 0 0 11757.8669 0 5 - 11757.8669 - - 0s 0 0 11758.0007 0 8 - 11758.0007 - - 0s 0 0 11758.2320 0 4 - 11758.2320 - - 0s 0 0 11758.2956 0 2 - 11758.2956 - - 0s 0 0 11758.7922 0 2 - 11758.7922 - - 0s 0 0 11758.8030 0 8 - 11758.8030 - - 0s 0 0 11758.8455 0 13 - 11758.8455 - - 0s 0 0 11758.9742 0 6 - 11758.9742 - - 0s 0 0 11758.9893 0 13 - 11758.9893 - - 0s 0 0 11759.0221 0 13 - 11759.0221 - - 0s 0 0 11759.0221 0 13 - 11759.0221 - - 0s 0 2 11759.0221 0 13 - 11759.0221 - - 0s * 19 3 12 11779.403919 11779.4026 0.00% 7.8 0s Cutting planes: Implied bound: 24 Flow cover: 6 Explored 20 nodes (414 simplex iterations) in 0.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.177940391857e+04, best bound 1.177940262477e+04, gap 0.0000%