Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:17:11 2013 Optimize a model with 89394 rows, 88454 columns and 353534 nonzeros Presolve removed 5279 rows and 0 columns Presolve time: 0.63s Presolved: 84115 rows, 88454 columns, 342976 nonzeros Variable types: 88360 continuous, 94 integer (94 binary) Root relaxation: objective 1.325988e+05, 17738 iterations, 3.92 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 132598.821 0 3 - 132598.821 - - 4s H 0 0 135481.00000 132598.821 2.13% - 5s H 0 0 132992.00000 132598.821 0.30% - 5s 0 0 132599.638 0 4 132992.000 132599.638 0.30% - 6s 0 0 132802.827 0 5 132992.000 132802.827 0.14% - 7s 0 0 132802.827 0 4 132992.000 132802.827 0.14% - 11s 0 0 132803.294 0 5 132992.000 132803.294 0.14% - 12s 0 0 132803.294 0 5 132992.000 132803.294 0.14% - 12s 0 2 132803.432 0 5 132992.000 132803.432 0.14% - 14s * 6 5 5 132932.00000 132832.966 0.07% 75.8 14s 9 1 cutoff 2 132932.000 132919.235 0.01% 67.9 15s Cutting planes: Gomory: 1 Flow cover: 5 Explored 10 nodes (25968 simplex iterations) in 15.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.329320000000e+05, best bound 1.329192354531e+05, gap 0.0096%