Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:21 2013

Optimize a model with 240 rows, 1710 columns and 5310 nonzeros
Presolve removed 10 rows and 250 columns
Presolve time: 0.01s
Presolved: 230 rows, 1460 columns, 4910 nonzeros
Variable types: 1410 continuous, 50 integer (50 binary)

Root relaxation: objective 2.207062e+04, 140 iterations, 0.00 seconds

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

     0     0 22070.6191    0    3          - 22070.6191     -      -    0s
     0     0 22076.9318    0    5          - 22076.9318     -      -    0s
     0     0 22109.5015    0    6          - 22109.5015     -      -    0s
     0     0 22111.4805    0    6          - 22111.4805     -      -    0s
     0     0 22111.6515    0    6          - 22111.6515     -      -    0s
     0     0 22111.9269    0    6          - 22111.9269     -      -    0s
     0     0 22112.0015    0    6          - 22112.0015     -      -    0s
     0     0 22112.2731    0    6          - 22112.2731     -      -    0s
     0     0 22112.2962    0    6          - 22112.2962     -      -    0s
     0     0 22112.4626    0    6          - 22112.4626     -      -    0s
     0     0 22112.4739    0    6          - 22112.4739     -      -    0s
     0     0 22112.4739    0    6          - 22112.4739     -      -    0s
     0     0 22112.4739    0    6          - 22112.4739     -      -    0s
H    0     0                    23141.666822 22112.4739  4.45%     -    0s
     0     2 22118.0250    0    6 23141.6668 22118.0250  4.42%     -    0s
*    7     2               5    22332.970758 22331.7853  0.01%  13.1    0s

Cutting planes:
  Gomory: 1
  Flow cover: 8

Explored 8 nodes (518 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.233297075756e+04, best bound 2.233178531535e+04, gap 0.0053%