Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:13:31 2013

Optimize a model with 759 rows, 47679 columns and 95289 nonzeros
Presolve time: 0.07s
Presolved: 759 rows, 47679 columns, 95289 nonzeros
Variable types: 47610 continuous, 69 integer (69 binary)

Root relaxation: objective 6.381414e+04, 1584 iterations, 0.05 seconds

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

     0     0 63814.1415    0    8          - 63814.1415     -      -    0s
H    0     0                    65319.000000 63814.1415  2.30%     -    0s
H    0     0                    64508.000000 63814.1415  1.08%     -    0s
     0     0 64142.5695    0    3 64508.0000 64142.5695  0.57%     -    0s
     0     0 64142.5695    0    8 64508.0000 64142.5695  0.57%     -    0s
     0     0 64142.5695    0    3 64508.0000 64142.5695  0.57%     -    0s
     0     0 64166.1710    0    3 64508.0000 64166.1710  0.53%     -    0s
     0     0 64168.7483    0    2 64508.0000 64168.7483  0.53%     -    0s
H    0     0                    64489.000000 64168.7483  0.50%     -    0s
     0     0 64168.7483    0    2 64489.0000 64168.7483  0.50%     -    0s
H    0     0                    64266.000000 64168.7483  0.15%     -    0s
     0     1 64175.7170    0    2 64266.0000 64175.7170  0.14%     -    1s

Cutting planes:
  Implied bound: 83
  Flow cover: 2

Explored 5 nodes (3846 simplex iterations) in 1.13 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.426600000000e+04, best bound 6.426600000000e+04, gap 0.0%