Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:13 2013 Optimize a model with 1080 rows, 2265 columns and 7525 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.23s Presolved: 1075 rows, 2260 columns, 6520 nonzeros Variable types: 1260 continuous, 1000 integer (1000 binary) Root relaxation: objective 1.121714e+04, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11217.1409 0 2 - 11217.1409 - - 0s 0 0 11221.7259 0 2 - 11221.7259 - - 0s 0 0 11223.3920 0 2 - 11223.3920 - - 0s 0 0 11224.2608 0 2 - 11224.2608 - - 0s 0 0 11224.4666 0 2 - 11224.4666 - - 0s 0 0 11224.5068 0 2 - 11224.5068 - - 0s 0 0 11224.6115 0 2 - 11224.6115 - - 0s 0 0 11224.6491 0 4 - 11224.6491 - - 0s 0 0 11225.6022 0 2 - 11225.6022 - - 0s 0 0 11226.3685 0 3 - 11226.3685 - - 0s 0 0 11226.4303 0 2 - 11226.4303 - - 0s 0 0 11226.4482 0 2 - 11226.4482 - - 0s 0 0 11226.4482 0 2 - 11226.4482 - - 0s H 0 0 11632.477805 11226.4482 3.49% - 0s 0 2 11226.4482 0 2 11632.4778 11226.4482 3.49% - 0s * 27 6 21 11250.403664 11250.4037 0.0% 5.5 0s Cutting planes: Gomory: 1 Implied bound: 11 Flow cover: 2 Explored 28 nodes (270 simplex iterations) in 0.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.125040366371e+04, best bound 1.125040366371e+04, gap 0.0%