Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:05:42 2013

Optimize a model with 50800 rows, 125150 columns and 400250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 1.21s
Presolved: 50750 rows, 125100 columns, 350200 nonzeros
Variable types: 75100 continuous, 50000 integer (50000 binary)

Root relaxation: objective 1.650739e+05, 4307 iterations, 0.37 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     -      -    3s
     0     0 165304.677    0    8          - 165304.677     -      -    5s
     0     0 165320.319    0    7          - 165320.319     -      -    5s
     0     0 165320.319    0    7          - 165320.319     -      -    5s
     0     0 165320.319    0    7          - 165320.319     -      -    7s
     0     2 165320.319    0    7          - 165320.319     -      -   13s
    12    14 168947.757    6    2          - 165557.394     -    205   15s
*   37     7              19    165622.04579 165607.652  0.01%  98.4   17s

Cutting planes:
  Gomory: 3
  Implied bound: 58
  Flow cover: 1

Explored 38 nodes (8882 simplex iterations) in 17.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.656220457902e+05, best bound 1.656076522874e+05, gap 0.0087%