Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:05:40 2013

Optimize a model with 22607 rows, 22137 columns and 88407 nonzeros
Presolve removed 1038 rows and 0 columns
Presolve time: 0.12s
Presolved: 21569 rows, 22137 columns, 86331 nonzeros
Variable types: 22090 continuous, 47 integer (47 binary)

Root relaxation: objective 4.470717e+04, 3126 iterations, 0.31 seconds

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

     0     0 44707.1703    0    3          - 44707.1703     -      -    0s
H    0     0                    44895.000000 44707.1703  0.42%     -    0s
     0     0 44707.8077    0    4 44895.0000 44707.8077  0.42%     -    0s
     0     0 44707.8077    0    4 44895.0000 44707.8077  0.42%     -    0s
     0     0 44707.8077    0    4 44895.0000 44707.8077  0.42%     -    0s
     0     0 44711.0118    0    2 44895.0000 44711.0118  0.41%     -    1s
H    0     0                    44846.000000 44711.0118  0.30%     -    1s
     0     2 44719.3387    0    2 44846.0000 44719.3387  0.28%     -    1s
*    6     2               5    44817.000000 44758.7698  0.13%  39.2    1s
*   13     1               4    44791.000000 44791.0000   0.0%  39.8    1s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 14 nodes (3708 simplex iterations) in 1.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.479100000000e+04, best bound 4.479100000000e+04, gap 0.0%