Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:17:01 2013

Optimize a model with 1200 rows, 26600 columns and 54050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.16s
Presolved: 1100 rows, 26450 columns, 52900 nonzeros
Variable types: 26000 continuous, 450 integer (450 binary)

Root relaxation: objective 2.252562e+05, 3893 iterations, 0.13 seconds

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

     0     0 225256.157    0    1          - 225256.157     -      -    0s
     0     0 225293.414    0    1          - 225293.414     -      -    0s
     0     0 225298.138    0    1          - 225298.138     -      -    0s
     0     0 225315.719    0    1          - 225315.719     -      -    0s
     0     0 225315.719    0    1          - 225315.719     -      -    0s
     0     0 225318.174    0    2          - 225318.174     -      -    0s
     0     0 225322.031    0    2          - 225322.031     -      -    0s
     0     0 225322.044    0    2          - 225322.044     -      -    0s
     0     0 225323.145    0    1          - 225323.145     -      -    1s
     0     0 225323.445    0    1          - 225323.445     -      -    1s
     0     0 225323.895    0    1          - 225323.895     -      -    1s
     0     0 225324.290    0    1          - 225324.290     -      -    1s
     0     0 225324.290    0    1          - 225324.290     -      -    1s
H    0     0                    227793.19218 225324.290  1.08%     -    1s
     0     2 225337.962    0    1 227793.192 225337.962  1.08%     -    2s
*   10     4              10    225915.15199 225773.206  0.06%  76.2    2s

Cutting planes:
  Flow cover: 17

Explored 13 nodes (5262 simplex iterations) in 2.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.259151519913e+05, best bound 2.259151519913e+05, gap 0.0%