Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:18:36 2013 Optimize a model with 900 rows, 25350 columns and 50950 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.13s Presolved: 750 rows, 25250 columns, 50550 nonzeros Variable types: 25200 continuous, 50 integer (50 binary) Root relaxation: objective 1.650739e+05, 1864 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 2 - 165073.856 - - 0s H 0 0 169208.68884 165073.856 2.44% - 0s 0 0 165205.091 0 3 169208.689 165205.091 2.37% - 0s 0 0 165283.018 0 2 169208.689 165283.018 2.32% - 0s 0 0 165335.007 0 2 169208.689 165335.007 2.29% - 0s 0 0 165349.315 0 2 169208.689 165349.315 2.28% - 0s 0 0 165362.144 0 2 169208.689 165362.144 2.27% - 0s 0 0 165369.744 0 2 169208.689 165369.744 2.27% - 0s 0 0 165370.112 0 2 169208.689 165370.112 2.27% - 0s 0 0 165371.396 0 2 169208.689 165371.396 2.27% - 0s 0 0 165372.377 0 2 169208.689 165372.377 2.27% - 0s 0 0 165373.361 0 2 169208.689 165373.361 2.27% - 0s 0 0 165373.771 0 2 169208.689 165373.771 2.27% - 0s 0 0 165373.985 0 2 169208.689 165373.985 2.27% - 1s 0 0 165374.227 0 2 169208.689 165374.227 2.27% - 1s 0 0 165374.340 0 2 169208.689 165374.340 2.27% - 1s 0 0 165374.340 0 2 169208.689 165374.340 2.27% - 1s 0 0 165374.513 0 2 169208.689 165374.513 2.27% - 1s 0 0 165374.637 0 2 169208.689 165374.637 2.27% - 1s 0 0 165374.803 0 2 169208.689 165374.803 2.27% - 1s 0 0 165374.808 0 2 169208.689 165374.808 2.27% - 1s 0 0 165374.843 0 2 169208.689 165374.843 2.27% - 1s 0 0 165374.843 0 2 169208.689 165374.843 2.27% - 1s 0 2 165375.361 0 2 169208.689 165375.361 2.27% - 1s * 8 5 8 165600.16715 165562.099 0.02% 33.2 2s Cutting planes: Flow cover: 22 Explored 12 nodes (3036 simplex iterations) in 2.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656001671541e+05, best bound 1.656001671541e+05, gap 0.0%