Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:23 2013 Optimize a model with 17261 rows, 16851 columns and 67281 nonzeros Presolve removed 744 rows and 0 columns Presolve time: 0.09s Presolved: 16517 rows, 16851 columns, 65793 nonzeros Variable types: 16810 continuous, 41 integer (41 binary) Root relaxation: objective 3.681229e+04, 2099 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36812.2928 0 2 - 36812.2928 - - 0s H 0 0 36969.000000 36812.2928 0.42% - 0s H 0 0 36866.000000 36812.2928 0.15% - 0s 0 0 36814.0496 0 3 36866.0000 36814.0496 0.14% - 0s 0 0 36814.0629 0 3 36866.0000 36814.0629 0.14% - 0s 0 0 36854.1479 0 2 36866.0000 36854.1479 0.03% - 0s 0 0 36855.5821 0 1 36866.0000 36855.5821 0.03% - 0s 0 0 36855.5821 0 1 36866.0000 36855.5821 0.03% - 0s 0 0 cutoff 0 36866.0000 36866.0000 0.0% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (2650 simplex iterations) in 0.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.686600000000e+04, best bound 3.686600000000e+04, gap 0.0%