Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:56:01 2013 Optimize a model with 97118 rows, 96138 columns and 384258 nonzeros Presolve removed 7157 rows and 0 columns Presolve time: 0.70s Presolved: 89961 rows, 96138 columns, 369944 nonzeros Variable types: 96040 continuous, 98 integer (98 binary) Root relaxation: objective 1.219958e+05, 17995 iterations, 4.65 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 121995.850 0 4 - 121995.850 - - 5s H 0 0 125007.00000 121995.850 2.41% - 6s 0 0 121997.084 0 5 125007.000 121997.084 2.41% - 7s H 0 0 123976.11111 121997.084 1.60% - 10s 0 2 121999.462 0 5 123976.111 121999.462 1.59% - 11s H 4 4 122246.00000 122157.000 0.07% 177 12s H 5 4 122212.71429 122168.387 0.04% 189 13s * 7 5 7 122198.00000 122168.387 0.02% 157 13s Cutting planes: Gomory: 2 Flow cover: 1 Explored 11 nodes (19300 simplex iterations) in 13.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.221980000000e+05, best bound 1.221943893377e+05, gap 0.0030%