Gurobi 5.0.1 (linux64) logging started Tue Dec 11 04:06:50 2012 Optimize a model with 11910 rows, 11880 columns and 45310 nonzeros Presolve removed 665 rows and 103 columns Presolve time: 0.07s Presolved: 11245 rows, 11777 columns, 43955 nonzeros Variable types: 11076 continuous, 701 integer (701 binary) Root relaxation: objective 2.418349e+05, 1099 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 241834.879 0 29 - 241834.879 - - 0s H 0 0 244937.00000 241834.879 1.27% - 0s H 0 0 243967.00000 241834.879 0.87% - 0s 0 0 241895.824 0 31 243967.000 241895.824 0.85% - 0s 0 0 241904.848 0 34 243967.000 241904.848 0.85% - 0s 0 0 241907.703 0 41 243967.000 241907.703 0.84% - 0s 0 0 241912.274 0 42 243967.000 241912.274 0.84% - 0s 0 0 241913.783 0 45 243967.000 241913.783 0.84% - 0s 0 0 241914.057 0 44 243967.000 241914.057 0.84% - 0s 0 0 241914.298 0 42 243967.000 241914.298 0.84% - 0s 0 0 241914.802 0 47 243967.000 241914.802 0.84% - 0s H 0 0 243886.00000 241914.802 0.81% - 0s 0 2 241919.788 0 47 243886.000 241919.788 0.81% - 0s H 27 24 242782.00000 241961.408 0.34% 4.2 0s * 125 70 56 242229.00000 241973.283 0.11% 4.6 1s H 600 195 242151.00000 242037.968 0.05% 5.2 2s 945 205 242059.577 16 31 242151.000 242059.577 0.04% 5.9 5s Cutting planes: Gomory: 7 Flow cover: 14 Explored 1929 nodes (10131 simplex iterations) in 6.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.421510000000e+05, best bound 2.421268360711e+05, gap 0.0100%