Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:29:45 2012 Optimize a model with 2190 rows, 2160 columns and 7158 nonzeros Presolve removed 96 rows and 60 columns Presolve time: 0.02s Presolved: 2094 rows, 2100 columns, 6927 nonzeros Variable types: 1401 continuous, 699 integer (699 binary) Root relaxation: objective 1.905908e+05, 1067 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 190590.787 0 374 - 190590.787 - - 0s H 0 0 326571.00000 190590.787 41.6% - 0s 0 0 238272.214 0 69 326571.000 238272.214 27.0% - 0s 0 0 239728.405 0 34 326571.000 239728.405 26.6% - 0s H 0 0 253214.58728 239728.405 5.33% - 0s 0 0 239926.702 0 1 253214.587 239926.702 5.25% - 0s H 0 0 240311.00000 239926.702 0.16% - 0s H 0 0 239939.00000 239926.702 0.01% - 0s Cutting planes: Gomory: 17 Cover: 2 Flow cover: 231 Flow path: 152 Explored 0 nodes (1537 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.399390000000e+05, best bound 2.399267024793e+05, gap 0.0051%