Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:15:46 2013

Optimize a model with 260 rows, 1230 columns and 2750 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.00s
Presolved: 240 rows, 1210 columns, 2680 nonzeros
Variable types: 1120 continuous, 90 integer (90 binary)

Root relaxation: objective 2.199252e+04, 87 iterations, 0.00 seconds

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

     0     0 21992.5209    0    2          - 21992.5209     -      -    0s
     0     0 22003.2784    0    1          - 22003.2784     -      -    0s
     0     0 22004.9279    0    1          - 22004.9279     -      -    0s
     0     0 22004.9279    0    1          - 22004.9279     -      -    0s
H    0     0                    22202.166751 22004.9279  0.89%     -    0s
     0     2 22011.2957    0    1 22202.1668 22011.2957  0.86%     -    0s
*    4     4               3    22134.404174 22128.1744  0.03%   9.0    0s

Cutting planes:
  Flow cover: 2

Explored 7 nodes (169 simplex iterations) in 0.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.213440417441e+04, best bound 2.213440417441e+04, gap 0.0%