Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:12:19 2013

Optimize a model with 26571 rows, 26061 columns and 104091 nonzeros
Presolve removed 627 rows and 0 columns
Presolve time: 0.14s
Presolved: 25944 rows, 26061 columns, 102837 nonzeros
Variable types: 26010 continuous, 51 integer (51 binary)

Root relaxation: objective 6.301956e+04, 5599 iterations, 0.63 seconds

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

     0     0 63019.5612    0    3          - 63019.5612     -      -    0s
H    0     0                    63170.000000 63019.5612  0.24%     -    0s
     0     0 63020.5017    0    4 63170.0000 63020.5017  0.24%     -    1s
     0     0 63020.5017    0    4 63170.0000 63020.5017  0.24%     -    1s
     0     0 63021.0551    0    3 63170.0000 63021.0551  0.24%     -    1s
     0     2 63022.3902    0    3 63170.0000 63022.3902  0.23%     -    1s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 14 nodes (6489 simplex iterations) in 2.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.317000000000e+04, best bound 6.317000000000e+04, gap 0.0%