Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:47:10 2013

Optimize a model with 280 rows, 2100 columns and 11250 nonzeros
Presolve removed 10 rows and 10 columns
Presolve time: 0.01s
Presolved: 270 rows, 2090 columns, 10240 nonzeros
Variable types: 2020 continuous, 70 integer (70 binary)

Root relaxation: objective 2.199252e+04, 122 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    6          - 21992.5209     -      -    0s
     0     0 21993.9422    0    8          - 21993.9422     -      -    0s
     0     0 22061.6646    0    7          - 22061.6646     -      -    0s
     0     0 22061.6646    0    7          - 22061.6646     -      -    0s
     0     2 22068.2610    0    7          - 22068.2610     -      -    0s
*   20     7              18    22158.298545 22075.6392  0.37%   5.8    0s
H   27     3                    22141.714848 22091.8157  0.23%   5.1    0s
*   42     3               6    22134.953373 22134.8910  0.00%   4.3    0s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 43 nodes (437 simplex iterations) in 0.35 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.213495337267e+04, best bound 2.213489101284e+04, gap 0.0003%