Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:57:08 2013 Optimize a model with 1023 rows, 86583 columns and 173073 nonzeros Presolve time: 0.15s Presolved: 1023 rows, 86583 columns, 173073 nonzeros Variable types: 86490 continuous, 93 integer (93 binary) Root relaxation: objective 1.353930e+05, 4284 iterations, 0.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 135393.027 0 9 - 135393.027 - - 0s H 0 0 146104.00000 135393.027 7.33% - 0s 0 0 135657.027 0 6 146104.000 135657.027 7.15% - 0s 0 0 135684.194 0 4 146104.000 135684.194 7.13% - 1s H 0 0 143108.88021 135684.194 5.19% - 1s H 0 0 142461.00000 135684.194 4.76% - 1s 0 0 135692.366 0 6 142461.000 135692.366 4.75% - 1s 0 0 135706.215 0 5 142461.000 135706.215 4.74% - 1s 0 0 135707.045 0 4 142461.000 135707.045 4.74% - 1s H 0 0 142234.00000 135707.045 4.59% - 1s 0 0 135713.685 0 4 142234.000 135713.685 4.58% - 1s H 0 0 142226.00000 135713.685 4.58% - 1s 0 0 135713.685 0 4 142226.000 135713.685 4.58% - 1s H 0 0 142186.00000 135713.685 4.55% - 1s 0 0 135717.214 0 4 142186.000 135717.214 4.55% - 2s 0 0 135717.214 0 4 142186.000 135717.214 4.55% - 2s 0 0 135717.214 0 4 142186.000 135717.214 4.55% - 2s 0 0 135717.214 0 4 142186.000 135717.214 4.55% - 2s 0 2 135733.646 0 4 142186.000 135733.646 4.54% - 3s H 2 2 139923.99338 135800.381 2.95% 71.0 3s H 3 3 139919.51926 135801.708 2.94% 88.0 3s H 4 4 137387.39437 135804.701 1.15% 68.0 3s H 11 10 136986.00000 135817.553 0.85% 37.7 3s H 14 12 136817.00000 135817.553 0.73% 33.9 3s H 16 14 136561.00000 135817.553 0.54% 30.6 3s H 17 12 136183.00000 135817.553 0.27% 29.8 3s * 18 9 17 136070.00000 135817.553 0.19% 29.0 3s Cutting planes: Implied bound: 132 Flow cover: 4 Explored 60 nodes (8392 simplex iterations) in 4.85 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.360700000000e+05, best bound 1.360700000000e+05, gap 0.0%