Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:11:00 2013 Optimize a model with 1400 rows, 38250 columns and 150750 nonzeros Presolve removed 50 rows and 2850 columns Presolve time: 0.22s Presolved: 1350 rows, 35400 columns, 140750 nonzeros Variable types: 35050 continuous, 350 integer (350 binary) Root relaxation: objective 1.650739e+05, 2740 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 8 - 165073.856 - - 0s 0 0 165087.034 0 8 - 165087.034 - - 0s 0 0 165090.399 0 12 - 165090.399 - - 0s 0 0 165091.512 0 8 - 165091.512 - - 0s 0 0 165091.903 0 8 - 165091.903 - - 0s 0 0 165091.958 0 8 - 165091.958 - - 0s 0 0 165091.965 0 8 - 165091.965 - - 1s 0 0 165091.965 0 8 - 165091.965 - - 1s 0 0 165091.965 0 8 - 165091.965 - - 1s 0 0 165091.965 0 8 - 165091.965 - - 1s 0 2 165098.243 0 8 - 165098.243 - - 3s * 47 26 45 165656.16599 165480.086 0.11% 13.4 3s * 92 24 21 165641.82575 165502.226 0.08% 11.3 4s * 112 24 24 165633.69583 165545.234 0.05% 10.6 4s * 124 23 18 165628.68761 165556.230 0.04% 10.2 4s 157 10 165609.168 10 3 165628.688 165609.168 0.01% 9.9 5s Cutting planes: Flow cover: 11 Explored 162 nodes (5359 simplex iterations) in 5.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656286876144e+05, best bound 1.656124634664e+05, gap 0.0098%