Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:41:39 2013

Optimize a model with 340 rows, 11130 columns and 122340 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.21s
Presolved: 330 rows, 11120 columns, 112330 nonzeros
Variable types: 11020 continuous, 100 integer (100 binary)

Root relaxation: objective 2.337984e+04, 154 iterations, 0.01 seconds

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

     0     0 23379.8401    0    3          - 23379.8401     -      -    0s
     0     0 23379.9546    0    3          - 23379.9546     -      -    0s
     0     0 23505.3240    0    6          - 23505.3240     -      -    0s
     0     0 23505.3240    0    6          - 23505.3240     -      -    0s
H    0     0                    23620.127542 23505.3240  0.49%     -    1s
     0     2 23507.8292    0    6 23620.1275 23507.8292  0.48%     -    1s
*   13     8              13    23529.867720 23511.8279  0.08%   7.5    1s
*   31     7              15    23528.711980 23527.2177  0.01%   5.5    1s

Cutting planes:
  Flow cover: 1

Explored 32 nodes (510 simplex iterations) in 1.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352871197962e+04, best bound 2.352721773095e+04, gap 0.0064%