Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:27:41 2013

Optimize a model with 34278 rows, 33698 columns and 134618 nonzeros
Presolve removed 2846 rows and 0 columns
Presolve time: 0.19s
Presolved: 31432 rows, 33698 columns, 128926 nonzeros
Variable types: 33640 continuous, 58 integer (58 binary)

Root relaxation: objective 6.346163e+04, 6229 iterations, 0.77 seconds

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

     0     0 63461.6260    0    2          - 63461.6260     -      -    1s
H    0     0                    63943.000000 63461.6260  0.75%     -    1s
     0     0 63464.2621    0    5 63943.0000 63464.2621  0.75%     -    1s
     0     0 63464.2621    0    5 63943.0000 63464.2621  0.75%     -    1s
     0     0 63464.2621    0    5 63943.0000 63464.2621  0.75%     -    1s
H    0     0                    63691.610526 63464.2621  0.36%     -    2s
H    0     0                    63545.000000 63464.2621  0.13%     -    2s
     0     0 63481.7368    0    2 63545.0000 63481.7368  0.10%     -    3s
     0     0 63485.7490    0    3 63545.0000 63485.7490  0.09%     -    3s
     0     0     cutoff    0      63545.0000 63545.0000   0.0%     -    3s

Cutting planes:
  Gomory: 2
  Flow cover: 2

Explored 0 nodes (8524 simplex iterations) in 3.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.354500000000e+04, best bound 6.354500000000e+04, gap 0.0%