Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:47 2013

Optimize a model with 11253 rows, 10923 columns and 43593 nonzeros
Presolve removed 800 rows and 0 columns
Presolve time: 0.06s
Presolved: 10453 rows, 10923 columns, 41993 nonzeros
Variable types: 10890 continuous, 33 integer (33 binary)

Root relaxation: objective 3.357635e+04, 1255 iterations, 0.07 seconds

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

     0     0 33576.3452    0    2          - 33576.3452     -      -    0s
H    0     0                    34092.000000 33576.3452  1.51%     -    0s
     0     0 33578.5832    0    4 34092.0000 33578.5832  1.51%     -    0s
     0     0 33578.5832    0    4 34092.0000 33578.5832  1.51%     -    0s
     0     0 33578.5832    0    4 34092.0000 33578.5832  1.51%     -    0s
     0     2 33579.2156    0    4 34092.0000 33579.2156  1.50%     -    0s
H    1     1                    34037.387268 33579.2156  1.35%   0.0    0s
H    2     2                    33690.000000 33625.4607  0.19%  10.5    0s
*    4     1               4    33683.000000 33675.8182  0.02%  23.5    0s

Cutting planes:
  Gomory: 2
  Flow cover: 4

Explored 6 nodes (1392 simplex iterations) in 0.74 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.368300000000e+04, best bound 3.368300000000e+04, gap 0.0%