Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:39:38 2013

Optimize a model with 320 rows, 11350 columns and 122190 nonzeros
Presolve removed 10 rows and 250 columns
Presolve time: 0.25s
Presolved: 310 rows, 11100 columns, 112190 nonzeros
Variable types: 11010 continuous, 90 integer (90 binary)

Root relaxation: objective 2.337984e+04, 183 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    7          - 23379.8401     -      -    0s
     0     0 23380.0691    0    7          - 23380.0691     -      -    0s
     0     0 23505.3359    0   13          - 23505.3359     -      -    0s
     0     0 23505.3359    0   13          - 23505.3359     -      -    0s
     0     2 23505.3926    0   13          - 23505.3926     -      -    1s
*   41    25              38    23553.734479 23505.3926  0.21%   6.1    1s
*   64    24              21    23531.891244 23505.4411  0.11%   4.9    1s
*   79    18              12    23531.530685 23505.7002  0.11%   4.5    1s
*   90    13              10    23527.308995 23506.2217  0.09%   4.3    1s

Cutting planes:
  Flow cover: 1

Explored 107 nodes (1074 simplex iterations) in 1.80 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730899529e+04, best bound 2.352513811693e+04, gap 0.0092%