Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:48:45 2013

Optimize a model with 1700 rows, 128000 columns and 1351050 nonzeros
Presolve removed 50 rows and 2450 columns
Presolve time: 3.82s
Presolved: 1650 rows, 125550 columns, 1251050 nonzeros
Variable types: 125050 continuous, 500 integer (500 binary)

Root relaxation: objective 2.252562e+05, 2951 iterations, 0.35 seconds

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

     0     0 225256.157    0    8          - 225256.157     -      -    4s
     0     0 225258.397    0    8          - 225258.397     -      -    5s
     0     0 225258.449    0    8          - 225258.449     -      -    6s
     0     0 225258.449    0    8          - 225258.449     -      -    7s
     0     2 225262.188    0    8          - 225262.188     -      -   23s
    12    14 226051.239   11    8          - 225401.053     -   70.1   25s
    48    50 226616.109   44    8          - 225401.053     -   28.8   30s
   140   142 226993.904  135    8          - 225401.053     -   14.0   35s
   229   225 227440.639  211    6          - 225401.053     -   10.5   40s
*  263   206             244    227442.23867 225401.053  0.90%   9.4   41s
   406   341 226599.681  139    5 227442.239 225449.998  0.88%   8.8   45s
*  409   172             142    226605.37085 225449.998  0.51%   8.8   45s
*  423     7              11    225915.15199 225492.079  0.19%  10.5   46s

Cutting planes:
  Flow cover: 1

Explored 445 nodes (10780 simplex iterations) in 48.99 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.259151519913e+05, best bound 2.259151519913e+05, gap 0.0%