Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:25:34 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 8370 rows and 0 columns Presolve time: 1.00s Presolved: 113840 rows, 121110 columns, 467370 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20214 1.3770507e+05 1.779395e+04 0.000000e+00 5s 26664 1.4749924e+05 0.000000e+00 0.000000e+00 9s Root relaxation: objective 1.474992e+05, 26664 iterations, 8.56 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 147499.237 0 3 - 147499.237 - - 9s H 0 0 150466.00000 147499.237 1.97% - 10s 0 0 147500.418 0 4 150466.000 147500.418 1.97% - 11s 0 0 147501.329 0 4 150466.000 147501.329 1.97% - 12s H 0 0 148944.00000 147501.329 0.97% - 15s 0 0 147501.329 0 3 148944.000 147501.329 0.97% - 25s 0 0 147501.422 0 4 148944.000 147501.422 0.97% - 25s 0 2 147513.452 0 4 148944.000 147513.452 0.96% - 28s 3 5 148124.095 2 2 148944.000 148045.627 0.60% 498 30s H 10 10 148655.00000 148045.627 0.41% 212 31s H 22 5 148304.00000 148045.627 0.17% 131 33s * 23 3 22 148209.00000 148045.627 0.11% 127 33s Cutting planes: Gomory: 2 Flow cover: 3 Explored 31 nodes (45777 simplex iterations) in 34.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.482090000000e+05, best bound 1.482090000000e+05, gap 0.0%