Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:33:53 2013

Optimize a model with 1500 rows, 35550 columns and 151400 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.20s
Presolved: 1450 rows, 35500 columns, 141350 nonzeros
Variable types: 35100 continuous, 400 integer (400 binary)

Root relaxation: objective 2.252562e+05, 3006 iterations, 0.11 seconds

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

     0     0 225256.157    0    3          - 225256.157     -      -    0s
     0     0 225267.296    0    6          - 225267.296     -      -    0s
     0     0 225267.516    0    6          - 225267.516     -      -    0s
     0     0 225267.516    0    6          - 225267.516     -      -    0s
     0     2 225282.785    0    6          - 225282.785     -      -    2s
*   11     4              11    225915.15199 225911.011  0.00%  74.3    3s

Cutting planes:
  Flow cover: 3

Explored 12 nodes (4248 simplex iterations) in 3.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.259151519913e+05, best bound 2.259110110937e+05, gap 0.0018%