Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:20:23 2013

Optimize a model with 2600 rows, 113600 columns and 291300 nonzeros
Presolve removed 100 rows and 2900 columns
Presolve time: 0.53s
Presolved: 2500 rows, 110700 columns, 281300 nonzeros
Variable types: 110100 continuous, 600 integer (600 binary)

Root relaxation: objective 8.258498e+05, 5968 iterations, 0.54 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 825849.833    0    3          - 825849.833     -      -    1s
H    0     0                    851121.35006 825849.833  2.97%     -    1s
     0     0 825855.439    0    3 851121.350 825855.439  2.97%     -    1s
     0     0 825855.833    0    3 851121.350 825855.833  2.97%     -    1s
     0     0 825856.228    0    3 851121.350 825856.228  2.97%     -    2s
     0     0 825857.870    0    3 851121.350 825857.870  2.97%     -    2s
     0     0 825863.285    0    3 851121.350 825863.285  2.97%     -    2s
     0     0 825863.438    0    3 851121.350 825863.438  2.97%     -    2s
     0     0 825865.185    0    3 851121.350 825865.185  2.97%     -    3s
     0     0 825865.185    0    3 851121.350 825865.185  2.97%     -    3s
     0     2 825867.536    0    3 851121.350 825867.536  2.97%     -    4s
     1     3 825898.563    1    5 851121.350 825898.563  2.96%   454    5s
*   11     6              11    826102.66657 825912.195  0.02%  85.2    7s

Cutting planes:
  Flow cover: 6

Explored 17 nodes (8095 simplex iterations) in 7.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.261026665679e+05, best bound 8.261026665679e+05, gap 0.0%