Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:33 2013 Optimize a model with 280 rows, 4100 columns and 8200 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.00s Presolved: 320 rows, 4120 columns, 8260 nonzeros Variable types: 4080 continuous, 40 integer (40 binary) Root relaxation: objective 3.573401e+04, 422 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35734.0139 0 6 - 35734.0139 - - 0s H 0 0 36637.968655 35734.0139 2.47% - 0s 0 0 35767.1405 0 6 36637.9687 35767.1405 2.38% - 0s 0 0 35788.1319 0 6 36637.9687 35788.1319 2.32% - 0s 0 0 35804.3678 0 8 36637.9687 35804.3678 2.28% - 0s 0 0 35805.0208 0 8 36637.9687 35805.0208 2.27% - 0s 0 0 35806.1066 0 8 36637.9687 35806.1066 2.27% - 0s 0 0 35806.6491 0 8 36637.9687 35806.6491 2.27% - 0s 0 0 35810.6854 0 8 36637.9687 35810.6854 2.26% - 0s 0 0 35812.1308 0 8 36637.9687 35812.1308 2.25% - 0s 0 0 35812.9067 0 8 36637.9687 35812.9067 2.25% - 0s 0 0 35814.0868 0 8 36637.9687 35814.0868 2.25% - 0s H 0 0 36131.385172 35814.0868 0.88% - 0s 0 0 35814.2595 0 8 36131.3852 35814.2595 0.88% - 0s 0 0 35814.6101 0 8 36131.3852 35814.6101 0.88% - 0s 0 0 35815.4419 0 8 36131.3852 35815.4419 0.87% - 0s 0 0 35816.1054 0 8 36131.3852 35816.1054 0.87% - 0s 0 0 35816.4371 0 8 36131.3852 35816.4371 0.87% - 0s 0 0 35816.7851 0 8 36131.3852 35816.7851 0.87% - 0s 0 0 35816.8619 0 8 36131.3852 35816.8619 0.87% - 0s 0 0 35816.9159 0 8 36131.3852 35816.9159 0.87% - 0s 0 0 35817.4330 0 8 36131.3852 35817.4330 0.87% - 0s 0 0 35817.6393 0 8 36131.3852 35817.6393 0.87% - 0s 0 0 35817.8297 0 8 36131.3852 35817.8297 0.87% - 0s 0 0 35818.0187 0 8 36131.3852 35818.0187 0.87% - 0s 0 0 35818.5776 0 8 36131.3852 35818.5776 0.87% - 0s 0 0 35819.0096 0 8 36131.3852 35819.0096 0.86% - 0s 0 0 35819.9819 0 8 36131.3852 35819.9819 0.86% - 0s 0 0 35819.9819 0 8 36131.3852 35819.9819 0.86% - 0s 0 0 35819.9819 0 8 36131.3852 35819.9819 0.86% - 0s 0 0 35819.9819 0 8 36131.3852 35819.9819 0.86% - 0s 0 0 35866.1143 0 4 36131.3852 35866.1143 0.73% - 0s 0 0 35866.9812 0 2 36131.3852 35866.9812 0.73% - 0s 0 0 35866.9812 0 2 36131.3852 35866.9812 0.73% - 0s 0 2 35878.0729 0 2 36131.3852 35878.0729 0.70% - 0s Cutting planes: Flow cover: 7 Explored 5 nodes (1276 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.613138517161e+04, best bound 3.613138517161e+04, gap 0.0%