Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:23 2013 Optimize a model with 6024 rows, 5784 columns and 23064 nonzeros Presolve removed 556 rows and 0 columns Presolve time: 0.04s Presolved: 5468 rows, 5784 columns, 21952 nonzeros Variable types: 5760 continuous, 24 integer (24 binary) Root relaxation: objective 2.243690e+04, 629 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22436.8974 0 4 - 22436.8974 - - 0s H 0 0 22659.000000 22436.8974 0.98% - 0s H 0 0 22464.000000 22436.8974 0.12% - 0s 0 0 22439.8631 0 5 22464.0000 22439.8631 0.11% - 0s 0 0 22439.8758 0 5 22464.0000 22439.8758 0.11% - 0s 0 0 22460.6000 0 3 22464.0000 22460.6000 0.02% - 0s 0 0 22462.6000 0 1 22464.0000 22462.6000 0.01% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (713 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.246400000000e+04, best bound 2.246260000000e+04, gap 0.0062%