Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:27:05 2013

Optimize a model with 34278 rows, 33698 columns and 134618 nonzeros
Presolve removed 2345 rows and 0 columns
Presolve time: 0.20s
Presolved: 31933 rows, 33698 columns, 129928 nonzeros
Variable types: 33640 continuous, 58 integer (58 binary)

Root relaxation: objective 6.237686e+04, 5434 iterations, 0.69 seconds

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

     0     0 62376.8608    0    4          - 62376.8608     -      -    0s
H    0     0                    63978.000000 62376.8608  2.50%     -    1s
     0     0 62384.0821    0    5 63978.0000 62384.0821  2.49%     -    1s
     0     0 62384.4594    0    5 63978.0000 62384.4594  2.49%     -    1s
H    0     0                    63103.000000 62384.4594  1.14%     -    2s
     0     2 62408.5846    0    5 63103.0000 62408.5846  1.10%     -    2s
H    2     2                    62975.320755 62470.1509  0.80%  44.0    2s
*   10     5               8    62780.000000 62493.9122  0.46%  97.4    2s
*   17     4               6    62656.000000 62506.9682  0.24%  77.2    3s
*   24     4               6    62566.000000 62520.3235  0.07%  68.0    3s

Cutting planes:
  Gomory: 2
  Flow cover: 4

Explored 29 nodes (7155 simplex iterations) in 3.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.256600000000e+04, best bound 6.256600000000e+04, gap 0.0%