Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:29 2013

Optimize a model with 300 rows, 6220 columns and 46170 nonzeros
Presolve removed 10 rows and 1130 columns
Presolve time: 0.07s
Presolved: 290 rows, 5090 columns, 42170 nonzeros
Variable types: 5010 continuous, 80 integer (80 binary)

Root relaxation: objective 2.207062e+04, 210 iterations, 0.01 seconds

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

     0     0 22070.6191    0    5          - 22070.6191     -      -    0s
     0     0 22070.6191    0    5          - 22070.6191     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     0 22071.0188    0    5          - 22071.0188     -      -    0s
     0     2 22072.3446    0    5          - 22072.3446     -      -    0s
*   25    15              23    22363.961064 22110.5791  1.13%   7.2    0s
*   40     9               9    22333.163337 22124.9010  0.93%   5.8    0s

Cutting planes:
  Flow cover: 5

Explored 80 nodes (1226 simplex iterations) in 0.77 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.233316333700e+04, best bound 2.233316333700e+04, gap 0.0%