Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:52:10 2013

Optimize a model with 10320 rows, 24060 columns and 78100 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.38s
Presolved: 10300 rows, 24040 columns, 68080 nonzeros
Variable types: 14040 continuous, 10000 integer (10000 binary)

Root relaxation: objective 3.839329e+04, 538 iterations, 0.02 seconds

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

     0     0 38393.2919    0    4          - 38393.2919     -      -    0s
     0     0 38494.7315    0    6          - 38494.7315     -      -    0s
     0     0 38498.0430    0    5          - 38498.0430     -      -    1s
     0     0 38498.1356    0    5          - 38498.1356     -      -    1s
     0     0 38498.1356    0    5          - 38498.1356     -      -    1s
     0     2 38498.1356    0    5          - 38498.1356     -      -    2s
*   32     6              16    38634.721836 38634.7218   0.0%  30.3    3s

Cutting planes:
  Gomory: 2
  Implied bound: 11
  Flow cover: 1

Explored 33 nodes (1801 simplex iterations) in 3.44 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.863472183585e+04, best bound 3.863472183585e+04, gap 0.0%