Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:12:37 2013 Optimize a model with 5080 rows, 10265 columns and 35525 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.14s Presolved: 5075 rows, 10260 columns, 30520 nonzeros Variable types: 5260 continuous, 5000 integer (5000 binary) Root relaxation: objective 1.704455e+04, 81 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17044.5499 0 2 - 17044.5499 - - 1s 0 0 17047.5680 0 2 - 17047.5680 - - 1s 0 0 17048.7478 0 2 - 17048.7478 - - 1s 0 0 17049.6333 0 2 - 17049.6333 - - 1s 0 0 17050.3667 0 2 - 17050.3667 - - 1s 0 0 17051.0033 0 2 - 17051.0033 - - 1s 0 0 17051.0714 0 5 - 17051.0714 - - 1s 0 0 17051.5712 0 2 - 17051.5712 - - 1s 0 0 17051.8261 0 5 - 17051.8261 - - 1s 0 0 17052.0872 0 2 - 17052.0872 - - 1s 0 0 17052.1692 0 3 - 17052.1692 - - 1s 0 0 17052.1857 0 3 - 17052.1857 - - 1s 0 0 17052.5622 0 2 - 17052.5622 - - 1s 0 0 17052.5759 0 6 - 17052.5759 - - 1s 0 0 17052.9241 0 5 - 17052.9241 - - 1s 0 0 17053.0038 0 2 - 17053.0038 - - 1s 0 0 17053.0888 0 11 - 17053.0888 - - 1s 0 0 17053.1478 0 11 - 17053.1478 - - 1s 0 0 17053.1478 0 11 - 17053.1478 - - 1s 0 2 17053.1478 0 11 - 17053.1478 - - 2s * 20 2 10 17091.445872 17091.4459 0.0% 200 3s Cutting planes: Gomory: 1 Implied bound: 16 Flow cover: 4 Explored 21 nodes (4213 simplex iterations) in 3.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.709144587154e+04, best bound 1.709144587154e+04, gap 0.0%