Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:29:53 2013

Optimize a model with 1500 rows, 51100 columns and 270850 nonzeros
Presolve removed 50 rows and 5650 columns
Presolve time: 0.41s
Presolved: 1450 rows, 45450 columns, 250850 nonzeros
Variable types: 45050 continuous, 400 integer (400 binary)

Root relaxation: objective 1.650739e+05, 3044 iterations, 0.13 seconds

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

     0     0 165073.856    0   10          - 165073.856     -      -    0s
     0     0 165080.431    0   10          - 165080.431     -      -    0s
     0     0 165081.522    0   10          - 165081.522     -      -    1s
     0     0 165081.634    0   15          - 165081.634     -      -    1s
     0     0 165082.337    0   15          - 165082.337     -      -    1s
     0     0 165082.384    0   15          - 165082.384     -      -    1s
     0     0 165082.617    0   15          - 165082.617     -      -    1s
     0     0 165082.617    0   15          - 165082.617     -      -    1s
     0     0 165082.617    0   15          - 165082.617     -      -    1s
     0     0 165082.617    0   15          - 165082.617     -      -    2s
     0     0 165082.617    0   15          - 165082.617     -      -    2s
     0     0 165082.617    0   15          - 165082.617     -      -    2s
     0     2 165082.787    0   15          - 165082.787     -      -    5s
*   49    33              47    165727.24264 165110.143  0.37%  19.3    6s
*   70    20              21    165630.32986 165319.174  0.19%  17.7    6s
*   95    19              20    165629.95229 165443.248  0.11%  16.2    7s

Cutting planes:
  Flow cover: 10

Explored 189 nodes (7108 simplex iterations) in 8.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.656299522906e+05, best bound 1.656148758214e+05, gap 0.0091%