Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:47 2013 Optimize a model with 286 rows, 6786 columns and 13546 nonzeros Presolve time: 0.01s Presolved: 286 rows, 6786 columns, 13546 nonzeros Variable types: 6760 continuous, 26 integer (26 binary) Root relaxation: objective 2.216756e+04, 183 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22167.5573 0 8 - 22167.5573 - - 0s H 0 0 22630.000000 22167.5573 2.04% - 0s H 0 0 22495.000000 22167.5573 1.46% - 0s 0 0 22382.6130 0 5 22495.0000 22382.6130 0.50% - 0s 0 0 22395.6448 0 5 22495.0000 22395.6448 0.44% - 0s 0 0 22402.8764 0 5 22495.0000 22402.8764 0.41% - 0s 0 0 22403.0092 0 4 22495.0000 22403.0092 0.41% - 0s 0 0 22403.5785 0 4 22495.0000 22403.5785 0.41% - 0s 0 0 22408.1616 0 2 22495.0000 22408.1616 0.39% - 0s H 0 0 22449.000000 22408.1616 0.18% - 0s 0 2 22408.4061 0 2 22449.0000 22408.4061 0.18% - 0s Cutting planes: Implied bound: 37 Flow cover: 5 Explored 5 nodes (374 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.244900000000e+04, best bound 2.244900000000e+04, gap 0.0%