Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:41:21 2013

Optimize a model with 2600 rows, 105900 columns and 242200 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.36s
Presolved: 2500 rows, 105800 columns, 237100 nonzeros
Variable types: 105200 continuous, 600 integer (600 binary)

Root relaxation: objective 8.258498e+05, 6317 iterations, 0.63 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 825855.833    0    3 851121.350 825855.833  2.97%     -    1s
     0     0 825855.833    0    3 851121.350 825855.833  2.97%     -    1s
     0     0 825857.833    0    3 851121.350 825857.833  2.97%     -    2s
     0     0 825863.186    0    3 851121.350 825863.186  2.97%     -    2s
     0     0 825868.225    0    4 851121.350 825868.225  2.97%     -    2s
     0     0 825868.225    0    4 851121.350 825868.225  2.97%     -    3s
     0     2 825873.251    0    4 851121.350 825873.251  2.97%     -    3s
*    5     3               5    826102.66657 825912.195  0.02%   109    4s

Cutting planes:
  Flow cover: 5

Explored 8 nodes (7923 simplex iterations) in 4.69 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 0.0000%