Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:19:50 2013

Optimize a model with 1700 rows, 75650 columns and 651700 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.66s
Presolved: 1650 rows, 75600 columns, 601650 nonzeros
Variable types: 75100 continuous, 500 integer (500 binary)

Root relaxation: objective 2.246016e+05, 3114 iterations, 0.17 seconds

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

     0     0 224601.597    0    3          - 224601.597     -      -    1s
     0     0 224601.597    0    3          - 224601.597     -      -    1s
     0     0 224601.597    0    3          - 224601.597     -      -    1s
     0     0 224601.597    0    3          - 224601.597     -      -    2s
     0     0 224601.597    0    3          - 224601.597     -      -    2s
     0     0 224601.597    0    3          - 224601.597     -      -    2s
     0     0 224601.597    0    3          - 224601.597     -      -    3s
     0     2 224601.597    0    3          - 224601.597     -      -    9s
     4     6 224780.290    3    3          - 224691.466     -   90.8   10s
    57    59 224904.793   56    1          - 224691.466     -   10.4   15s
*  146    39             145    225077.78098 224691.466  0.17%   5.1   18s
*  152     0               5    224847.24808 224847.248   0.0%   6.0   18s

Cutting planes:
  Flow cover: 2

Explored 153 nodes (5216 simplex iterations) in 18.91 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%