Gurobi 5.0.1 (linux64) logging started Mon Dec 10 23:30:33 2012 Optimize a model with 11910 rows, 11880 columns and 45300 nonzeros Presolve removed 681 rows and 120 columns Presolve time: 0.07s Presolved: 11229 rows, 11760 columns, 43855 nonzeros Variable types: 11059 continuous, 701 integer (701 binary) Root relaxation: objective 2.313505e+05, 998 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 231350.471 0 1 - 231350.471 - - 0s H 0 0 231374.00000 231350.471 0.01% - 0s 0 0 231373.497 0 1 231374.000 231373.497 0.00% - 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 0 nodes (999 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.313740000000e+05, best bound 2.313734974874e+05, gap 0.0002%