Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:32:15 2013

Optimize a model with 10800 rows, 45150 columns and 120250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.31s
Presolved: 10750 rows, 45100 columns, 110200 nonzeros
Variable types: 35100 continuous, 10000 integer (10000 binary)

Root relaxation: objective 2.208160e+05, 4067 iterations, 0.15 seconds

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

     0     0 220815.985    0    8          - 220815.985     -      -    0s
     0     0 220930.407    0    4          - 220930.407     -      -    1s
     0     0 220956.360    0    6          - 220956.360     -      -    1s
     0     0 220957.957    0    6          - 220957.957     -      -    1s
     0     0 220963.116    0    6          - 220963.116     -      -    1s
     0     0 220963.116    0    6          - 220963.116     -      -    1s
     0     0 220963.116    0    6          - 220963.116     -      -    2s
     0     2 220963.116    0    6          - 220963.116     -      -    3s
    23    25 229332.658   12    2          - 221238.933     -    127    5s
*   50    12              25    221476.98579 221238.933  0.11%  69.9    5s

Cutting planes:
  Gomory: 1
  Implied bound: 38
  Flow cover: 3

Explored 56 nodes (8818 simplex iterations) in 5.85 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.214769857930e+05, best bound 2.214758508658e+05, gap 0.0005%