Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:51:19 2013

Optimize a model with 1300 rows, 31800 columns and 95650 nonzeros
Presolve removed 50 rows and 1450 columns
Presolve time: 0.14s
Presolved: 1250 rows, 30350 columns, 90650 nonzeros
Variable types: 30050 continuous, 300 integer (300 binary)

Root relaxation: objective 2.208160e+05, 2101 iterations, 0.08 seconds

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

     0     0 220815.985    0   12          - 220815.985     -      -    0s
     0     0 220849.232    0    9          - 220849.232     -      -    0s
     0     0 220849.437    0   12          - 220849.437     -      -    0s
     0     0 220859.725    0   12          - 220859.725     -      -    0s
     0     0 220869.280    0    6          - 220869.280     -      -    0s
     0     0 220869.280    0    6          - 220869.280     -      -    0s
     0     0 220870.725    0    9          - 220870.725     -      -    0s
     0     0 220872.088    0    9          - 220872.088     -      -    0s
     0     0 220872.088    0    9          - 220872.088     -      -    1s
     0     2 220877.425    0    9          - 220877.425     -      -    2s
*   39    28              37    221492.42787 220968.349  0.24%  19.5    3s
*   96    34              16    221476.95360 221259.443  0.10%  27.7    4s
   178    28 221410.133   16    2 221476.954 221410.133  0.03%  21.4    5s
*  240    10              22    221476.69350 221450.490  0.01%  17.9    5s

Cutting planes:
  Flow cover: 11

Explored 250 nodes (7259 simplex iterations) in 5.46 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.214766934992e+05, best bound 2.214555229064e+05, gap 0.0096%