Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:45 2013

Optimize a model with 220 rows, 1380 columns and 3490 nonzeros
Presolve removed 10 rows and 130 columns
Presolve time: 0.00s
Presolved: 210 rows, 1250 columns, 3290 nonzeros
Variable types: 1210 continuous, 40 integer (40 binary)

Root relaxation: objective 2.207062e+04, 126 iterations, 0.00 seconds

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

     0     0 22070.6191    0    2          - 22070.6191     -      -    0s
     0     0 22083.4433    0    4          - 22083.4433     -      -    0s
     0     0 22083.8373    0    4          - 22083.8373     -      -    0s
     0     0 22083.8373    0    4          - 22083.8373     -      -    0s
     0     0 22084.6305    0    4          - 22084.6305     -      -    0s
     0     0 22084.6305    0    4          - 22084.6305     -      -    0s
     0     0 22084.6305    0    4          - 22084.6305     -      -    0s
     0     0 22084.8817    0    4          - 22084.8817     -      -    0s
     0     0 22085.1815    0    4          - 22085.1815     -      -    0s
     0     0 22085.1815    0    4          - 22085.1815     -      -    0s
     0     0 22085.1815    0    4          - 22085.1815     -      -    0s
H    0     0                    22566.622063 22085.1815  2.13%     -    0s
     0     2 22100.3284    0    4 22566.6221 22100.3284  2.07%     -    0s
*    6     3               5    22336.145036 22316.6920  0.09%  12.5    0s
*    9     1               5    22332.689075 22332.0325  0.00%   8.6    0s

Cutting planes:
  Gomory: 1
  Flow cover: 5

Explored 10 nodes (409 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.233268907504e+04, best bound 2.233203253014e+04, gap 0.0029%