Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:03:02 2013

Optimize a model with 25800 rows, 75150 columns and 225250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.89s
Presolved: 25750 rows, 75100 columns, 200200 nonzeros
Variable types: 50100 continuous, 25000 integer (25000 binary)

Root relaxation: objective 1.715514e+05, 4328 iterations, 0.25 seconds

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

     0     0 171551.420    0    4          - 171551.420     -      -    1s
     0     0 171558.365    0    2          - 171558.365     -      -    2s
     0     0 171558.436    0    2          - 171558.436     -      -    2s
     0     0 171559.111    0    3          - 171559.111     -      -    2s
     0     0 171559.111    0    3          - 171559.111     -      -    3s
H    0     0                    171614.67568 171559.111  0.03%     -    3s
     0     1 171562.019    0    2 171614.676 171562.019  0.03%     -    4s
    16     1 171571.011   16    2 171614.676 171571.011  0.03%  22.9    5s
*  128     0             128    171584.76124 171584.761   0.0%   4.6    9s

Cutting planes:
  Implied bound: 14
  Flow cover: 1

Explored 129 nodes (5799 simplex iterations) in 9.92 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.715847612416e+05, best bound 1.715847612416e+05, gap 0.0%