Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:52:23 2013 Optimize a model with 10320 rows, 24060 columns and 78100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.43s Presolved: 10300 rows, 24040 columns, 68080 nonzeros Variable types: 14040 continuous, 10000 integer (10000 binary) Root relaxation: objective 4.642213e+04, 579 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46422.1265 0 6 - 46422.1265 - - 1s 0 0 46456.3720 0 4 - 46456.3720 - - 1s 0 0 46457.8142 0 6 - 46457.8142 - - 1s 0 0 46464.1885 0 6 - 46464.1885 - - 1s 0 0 46465.1091 0 6 - 46465.1091 - - 1s 0 0 46469.2056 0 6 - 46469.2056 - - 1s 0 0 46471.8884 0 8 - 46471.8884 - - 1s 0 0 46474.0924 0 7 - 46474.0924 - - 1s 0 0 46475.7370 0 4 - 46475.7370 - - 1s 0 0 46475.8344 0 6 - 46475.8344 - - 1s 0 0 46475.9389 0 5 - 46475.9389 - - 2s 0 0 46476.0986 0 6 - 46476.0986 - - 2s 0 0 46476.2106 0 4 - 46476.2106 - - 2s 0 0 46476.2945 0 4 - 46476.2945 - - 2s 0 0 46476.7688 0 10 - 46476.7688 - - 2s 0 0 46477.7417 0 6 - 46477.7417 - - 2s 0 0 46477.8069 0 8 - 46477.8069 - - 2s 0 0 46478.3885 0 12 - 46478.3885 - - 2s 0 0 46478.6099 0 8 - 46478.6099 - - 2s 0 0 46478.8689 0 8 - 46478.8689 - - 3s 0 0 46479.0314 0 8 - 46479.0314 - - 3s 0 0 46479.1273 0 4 - 46479.1273 - - 3s 0 0 46479.2191 0 9 - 46479.2191 - - 3s 0 0 46479.2191 0 9 - 46479.2191 - - 3s 0 2 46479.2191 0 9 - 46479.2191 - - 5s * 24 6 12 46743.816100 46743.8161 0.0% 27.2 5s Cutting planes: Gomory: 2 Implied bound: 51 Flow cover: 4 Explored 25 nodes (1795 simplex iterations) in 5.73 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.674381610004e+04, best bound 4.674381610004e+04, gap 0.0%