Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:50 2013 Optimize a model with 649 rows, 34869 columns and 69679 nonzeros Presolve time: 0.05s Presolved: 649 rows, 34869 columns, 69679 nonzeros Variable types: 34810 continuous, 59 integer (59 binary) Root relaxation: objective 5.934143e+04, 1179 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 59341.4289 0 7 - 59341.4289 - - 0s H 0 0 62610.000000 59341.4289 5.22% - 0s H 0 0 62040.000000 59341.4289 4.35% - 0s H 0 0 60160.000000 59341.4289 1.36% - 0s 0 0 59750.3657 0 6 60160.0000 59750.3657 0.68% - 0s 0 0 59762.0074 0 5 60160.0000 59762.0074 0.66% - 0s H 0 0 59884.000000 59762.0074 0.20% - 0s 0 0 59763.9460 0 4 59884.0000 59763.9460 0.20% - 0s 0 0 59763.9460 0 6 59884.0000 59763.9460 0.20% - 0s 0 0 59763.9460 0 6 59884.0000 59763.9460 0.20% - 0s 0 0 59763.9460 0 5 59884.0000 59763.9460 0.20% - 0s 0 0 59763.9460 0 5 59884.0000 59763.9460 0.20% - 0s H 0 0 59880.000000 59763.9460 0.19% - 0s 0 0 59765.0179 0 4 59880.0000 59765.0179 0.19% - 0s 0 0 59765.4973 0 4 59880.0000 59765.4973 0.19% - 0s 0 0 59773.1900 0 3 59880.0000 59773.1900 0.18% - 0s 0 0 59778.9834 0 2 59880.0000 59778.9834 0.17% - 0s 0 0 59780.1628 0 2 59880.0000 59780.1628 0.17% - 0s 0 0 59780.4878 0 1 59880.0000 59780.4878 0.17% - 0s H 0 0 59876.000000 59780.4878 0.16% - 0s H 0 0 59784.000000 59780.4878 0.01% - 0s Cutting planes: Implied bound: 71 Flow cover: 5 Explored 0 nodes (2848 simplex iterations) in 0.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.978400000000e+04, best bound 5.978048780488e+04, gap 0.0059%