Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:25 2013

Optimize a model with 570 rows, 760 columns and 2505 nonzeros
Presolve removed 15 rows and 10 columns
Presolve time: 0.02s
Presolved: 555 rows, 750 columns, 1990 nonzeros
Variable types: 505 continuous, 245 integer (245 binary)

Root relaxation: objective 1.174557e+04, 230 iterations, 0.00 seconds

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

     0     0 11745.5748    0    1          - 11745.5748     -      -    0s
     0     0 11770.8641    0    2          - 11770.8641     -      -    0s
     0     0 11774.0514    0    2          - 11774.0514     -      -    0s
     0     0 11774.0536    0    3          - 11774.0536     -      -    0s
H    0     0                    11902.026083 11774.0536  1.08%     -    0s
     0     0 11774.0536    0    1 11902.0261 11774.0536  1.08%     -    0s
     0     0 11774.0536    0    2 11902.0261 11774.0536  1.08%     -    0s
     0     0 11774.0536    0    2 11902.0261 11774.0536  1.08%     -    0s
     0     0 11774.0536    0    3 11902.0261 11774.0536  1.08%     -    0s
H    0     0                    11783.510594 11774.0536  0.08%     -    0s
     0     2 11774.1478    0    2 11783.5106 11774.1478  0.08%     -    0s
*    6     0               1    11779.400058 11779.4001   0.0%   3.8    0s

Cutting planes:
  Flow cover: 3

Explored 7 nodes (438 simplex iterations) in 0.10 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.177940005794e+04, best bound 1.177940005794e+04, gap 0.0%