Gurobi 5.0.1 (linux64) logging started Sat Dec 8 03:29:02 2012 Optimize a model with 825 rows, 810 columns and 2957 nonzeros Presolve removed 86 rows and 27 columns Presolve time: 0.01s Presolved: 739 rows, 783 columns, 2848 nonzeros Variable types: 697 continuous, 86 integer (86 binary) Root relaxation: objective 3.016482e+04, 183 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 30164.8226 0 21 - 30164.8226 - - 0s 0 0 30568.0195 0 31 - 30568.0195 - - 0s 0 0 30590.2913 0 36 - 30590.2913 - - 0s 0 0 30615.2915 0 39 - 30615.2915 - - 0s 0 0 30615.6801 0 41 - 30615.6801 - - 0s H 0 0 42051.000000 30615.6801 27.2% - 0s 0 2 30634.3530 0 41 42051.0000 30634.3530 27.1% - 0s H 162 116 41557.000000 31028.1979 25.3% 20.0 0s * 289 210 57 35508.000000 31105.0400 12.4% 16.8 0s H 341 151 33331.000000 31110.9084 6.66% 16.4 0s H 718 298 33036.000000 31183.4044 5.61% 16.5 1s H 772 296 32740.000000 31183.4044 4.75% 16.6 1s 7061 2179 32705.8156 26 22 32740.0000 31773.3609 2.95% 13.6 5s 16717 3312 32445.6435 25 18 32740.0000 32147.9461 1.81% 12.7 10s H25935 2338 32719.000000 32423.9139 0.90% 12.2 14s *25936 2323 48 32716.000000 32423.9139 0.89% 12.2 14s 27135 1950 32665.3407 33 15 32716.0000 32469.2204 0.75% 12.1 15s Cutting planes: Gomory: 3 Cover: 2 Clique: 1 Flow cover: 14 Explored 30150 nodes (349556 simplex iterations) in 16.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.271600000000e+04, best bound 3.271309944233e+04, gap 0.0089%