Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:52:21 2013

Optimize a model with 3300 rows, 30150 columns and 67750 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.14s
Presolved: 3250 rows, 30100 columns, 65200 nonzeros
Variable types: 27600 continuous, 2500 integer (2500 binary)

Root relaxation: objective 1.650739e+05, 3566 iterations, 0.10 seconds

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

     0     0 165073.856    0    4          - 165073.856     -      -    0s
     0     0 165209.989    0    8          - 165209.989     -      -    0s
     0     0 165237.236    0   10          - 165237.236     -      -    0s
     0     0 165243.018    0   10          - 165243.018     -      -    0s
     0     0 165247.155    0   10          - 165247.155     -      -    0s
     0     0 165247.159    0    8          - 165247.159     -      -    0s
     0     0 165247.159    0    8          - 165247.159     -      -    0s
     0     0 165247.159    0    8          - 165247.159     -      -    1s
     0     2 165247.159    0    8          - 165247.159     -      -    2s
*   29     7              15    165621.92658 165610.300  0.01%   119    3s

Cutting planes:
  Gomory: 1
  Implied bound: 52
  Flow cover: 4

Explored 30 nodes (7690 simplex iterations) in 3.14 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.656219265842e+05, best bound 1.656102995618e+05, gap 0.0070%