Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:17:25 2013

Optimize a model with 800 rows, 25400 columns and 50850 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.12s
Presolved: 700 rows, 25250 columns, 50500 nonzeros
Variable types: 25200 continuous, 50 integer (50 binary)

Root relaxation: objective 1.715514e+05, 2442 iterations, 0.09 seconds

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

     0     0 171551.420    0    2          - 171551.420     -      -    0s
H    0     0                    175540.05747 171551.420  2.27%     -    0s
H    0     0                    171602.27255 171551.420  0.03%     -    0s
     0     0 171553.825    0    1 171602.273 171553.825  0.03%     -    0s
     0     0 171564.828    0    1 171602.273 171564.828  0.02%     -    0s
     0     0 171569.326    0    1 171602.273 171569.326  0.02%     -    0s
     0     0 171569.505    0    1 171602.273 171569.505  0.02%     -    0s
     0     0 171578.618    0    1 171602.273 171578.618  0.01%     -    0s
     0     0 171579.745    0    1 171602.273 171579.745  0.01%     -    0s
     0     0 171583.121    0    1 171602.273 171583.121  0.01%     -    0s
*    0     0               0    171584.76124 171584.761   0.0%     -    0s

Cutting planes:
  Flow cover: 2

Explored 0 nodes (2742 simplex iterations) in 0.59 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%