Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:41:38 2012 Optimize a model with 2190 rows, 2160 columns and 7153 nonzeros Presolve removed 98 rows and 59 columns Presolve time: 0.02s Presolved: 2092 rows, 2101 columns, 6923 nonzeros Variable types: 1399 continuous, 702 integer (702 binary) Root relaxation: objective 1.823182e+05, 1056 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182318.202 0 366 - 182318.202 - - 0s H 0 0 303561.00000 182318.202 39.9% - 0s 0 0 229384.738 0 90 303561.000 229384.738 24.4% - 0s 0 0 231199.703 0 80 303561.000 231199.703 23.8% - 0s 0 0 231679.800 0 58 303561.000 231679.800 23.7% - 0s 0 0 231895.809 0 40 303561.000 231895.809 23.6% - 0s 0 0 231915.833 0 30 303561.000 231915.833 23.6% - 0s 0 0 231923.123 0 27 303561.000 231923.123 23.6% - 0s 0 0 231940.401 0 36 303561.000 231940.401 23.6% - 0s 0 2 231942.441 0 36 303561.000 231942.441 23.6% - 0s H 27 22 233452.00000 231942.441 0.65% 3.3 0s * 409 301 155 233361.00000 231992.826 0.59% 4.8 0s H 600 113 232393.00000 232030.790 0.16% 4.8 0s 4514 1134 232333.938 85 12 232393.000 232297.299 0.04% 4.2 5s * 5395 1265 93 232388.00000 232309.573 0.03% 4.1 5s H 7216 588 232357.00000 232333.785 0.01% 3.9 6s Cutting planes: Gomory: 26 Cover: 3 Implied bound: 1 Flow cover: 150 Flow path: 121 Explored 7216 nodes (29632 simplex iterations) in 6.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.323569999994e+05, best bound 2.323337847943e+05, gap 0.0100%