Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:00:35 2013

Optimize a model with 5700 rows, 40100 columns and 90050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.30s
Presolved: 5600 rows, 39950 columns, 79900 nonzeros
Variable types: 35000 continuous, 4950 integer (4950 binary)

Root relaxation: objective 2.252562e+05, 5006 iterations, 0.19 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 225304.124    0    2          - 225304.124     -      -    1s
     0     0 225305.605    0    2          - 225305.605     -      -    1s
     0     0 225305.605    0    2          - 225305.605     -      -    1s
     0     0 225305.605    0    2          - 225305.605     -      -    1s
     0     0 225305.605    0    2          - 225305.605     -      -    1s
     0     0 225305.605    0    2          - 225305.605     -      -    1s
     0     2 225315.829    0    2          - 225315.829     -      -    3s
    37    39 226826.186   35    2          - 225625.106     -   35.1    5s
   161   163 227572.809  159    1          - 225625.106     -   32.0   10s
*  164    99             161    227573.40605 225625.106  0.86%  31.4   10s
   467   376 225971.347   44    1 227573.406 225744.907  0.80%  37.5   15s
H  490   113                    226561.10769 225744.907  0.36%  35.8   15s
H  600    17                    225937.03362 225744.907  0.09%  29.5   17s
   604    17 225899.212    4    2 225937.034 225744.907  0.09%  29.3   20s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 690 nodes (34815 simplex iterations) in 23.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.259370336186e+05, best bound 2.259151519913e+05, gap 0.0097%