Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:46 2013 Optimize a model with 11253 rows, 10923 columns and 43593 nonzeros Presolve removed 1338 rows and 0 columns Presolve time: 0.06s Presolved: 9915 rows, 10923 columns, 40917 nonzeros Variable types: 10890 continuous, 33 integer (33 binary) Root relaxation: objective 4.017723e+04, 1666 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40177.2308 0 1 - 40177.2308 - - 0s H 0 0 40578.000000 40177.2308 0.99% - 0s H 0 0 40196.000000 40177.2308 0.05% - 0s 0 0 40177.4587 0 2 40196.0000 40177.4587 0.05% - 0s 0 0 40177.4587 0 2 40196.0000 40177.4587 0.05% - 0s 0 0 cutoff 0 40196.0000 40196.0000 0.0% - 0s Cutting planes: Gomory: 1 Flow cover: 2 Explored 0 nodes (1703 simplex iterations) in 0.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.019600000000e+04, best bound 4.019600000000e+04, gap 0.0%