Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:46 2013

Optimize a model with 220 rows, 1380 columns and 3490 nonzeros
Presolve removed 10 rows and 130 columns
Presolve time: 0.00s
Presolved: 210 rows, 1250 columns, 3290 nonzeros
Variable types: 1210 continuous, 40 integer (40 binary)

Root relaxation: objective 2.337984e+04, 176 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    2          - 23379.8401     -      -    0s
     0     0 23395.3063    0    4          - 23395.3063     -      -    0s
     0     0 23395.4304    0    4          - 23395.4304     -      -    0s
     0     0 23395.4304    0    4          - 23395.4304     -      -    0s
H    0     0                    23612.210621 23395.4304  0.92%     -    0s
     0     2 23447.1851    0    4 23612.2106 23447.1851  0.70%     -    0s
*    8     2               7    23526.709807 23501.6013  0.11%  11.5    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 12 nodes (384 simplex iterations) in 0.05 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.352670980679e+04, best bound 2.352670980679e+04, gap 0.0%