Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:51 2013

Optimize a model with 300 rows, 3110 columns and 22280 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.03s
Presolved: 290 rows, 3100 columns, 20270 nonzeros
Variable types: 3020 continuous, 80 integer (80 binary)

Root relaxation: objective 2.337984e+04, 143 iterations, 0.00 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 23380.4125    0    3          - 23380.4125     -      -    0s
     0     0 23512.6956    0    6          - 23512.6956     -      -    0s
     0     0 23512.6956    0    6          - 23512.6956     -      -    0s
H    0     0                    24137.910016 23512.6956  2.59%     -    0s
     0     2 23512.6956    0    6 24137.9100 23512.6956  2.59%     -    0s
*   15     6              14    23578.360351 23512.6956  0.28%   7.3    0s
*   30    13              13    23553.822511 23526.3368  0.12%   5.5    0s
*   38     4               9    23527.307569 23527.3076   0.0%   5.1    0s

Cutting planes:
  Flow cover: 1

Explored 39 nodes (506 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352730756914e+04, best bound 2.352730756914e+04, gap 0.0%