Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:27:59 2013 Optimize a model with 2580 rows, 5265 columns and 18025 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.14s Presolved: 2575 rows, 5260 columns, 15520 nonzeros Variable types: 2760 continuous, 2500 integer (2500 binary) Root relaxation: objective 1.704455e+04, 76 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 - - 0s 0 0 17048.7864 0 2 - 17048.7864 - - 0s 0 0 17050.4039 0 2 - 17050.4039 - - 0s 0 0 17051.6074 0 2 - 17051.6074 - - 0s 0 0 17051.6180 0 3 - 17051.6180 - - 0s 0 0 17052.5975 0 2 - 17052.5975 - - 0s 0 0 17053.1238 0 5 - 17053.1238 - - 0s 0 0 17053.4520 0 2 - 17053.4520 - - 0s 0 0 17053.7214 0 2 - 17053.7214 - - 0s 0 0 17053.7614 0 6 - 17053.7614 - - 0s 0 0 17054.2105 0 2 - 17054.2105 - - 0s 0 0 17054.6166 0 7 - 17054.6166 - - 0s 0 0 17054.6814 0 2 - 17054.6814 - - 0s 0 0 17054.8270 0 7 - 17054.8270 - - 0s 0 0 17054.8965 0 2 - 17054.8965 - - 0s 0 0 17054.9227 0 9 - 17054.9227 - - 0s 0 0 17054.9714 0 9 - 17054.9714 - - 0s 0 0 17054.9872 0 9 - 17054.9872 - - 0s 0 0 17054.9872 0 9 - 17054.9872 - - 0s 0 2 17054.9872 0 9 - 17054.9872 - - 1s * 17 1 9 17091.445829 17091.4457 0.00% 45.9 1s Cutting planes: Gomory: 1 Implied bound: 15 Flow cover: 3 Explored 18 nodes (986 simplex iterations) in 1.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.709144582885e+04, best bound 1.709144574362e+04, gap 0.0000%