Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:44 2013

Optimize a model with 380 rows, 4340 columns and 8820 nonzeros
Presolve removed 40 rows and 60 columns
Presolve time: 0.01s
Presolved: 340 rows, 4280 columns, 8560 nonzeros
Variable types: 4200 continuous, 80 integer (80 binary)

Root relaxation: objective 4.370285e+04, 571 iterations, 0.01 seconds

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

     0     0 43702.8549    0    2          - 43702.8549     -      -    0s
     0     0 43723.5780    0    1          - 43723.5780     -      -    0s
     0     0 43723.9795    0    2          - 43723.9795     -      -    0s
     0     0 43725.7873    0    1          - 43725.7873     -      -    0s
     0     0 43725.7873    0    1          - 43725.7873     -      -    0s
     0     0 43726.3067    0    1          - 43726.3067     -      -    0s
     0     0 43726.5548    0    1          - 43726.5548     -      -    0s
     0     0 43726.5548    0    1          - 43726.5548     -      -    0s
     0     0 43726.5548    0    1          - 43726.5548     -      -    0s
H    0     0                    44033.613407 43726.5548  0.70%     -    0s
     0     2 43741.6678    0    1 44033.6134 43741.6678  0.66%     -    0s
*   11     3              11    44000.669969 43836.4070  0.37%  10.6    0s
*   25     1               4    43899.817028 43899.8170   0.0%  11.9    0s

Cutting planes:
  Flow cover: 8

Explored 26 nodes (943 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.389981702769e+04, best bound 4.389981702769e+04, gap 0.0%