Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:35 2013

Optimize a model with 2032 rows, 4046 columns and 14090 nonzeros
Presolve removed 23 rows and 163 columns
Presolve time: 0.18s
Presolved: 2009 rows, 3883 columns, 11628 nonzeros
Variable types: 2021 continuous, 1862 integer (1862 binary)

Root relaxation: objective 5.785047e+03, 14 iterations, 0.00 seconds

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

     0     0 5785.04661    0    2          - 5785.04661     -      -    0s
     0     0 5785.96810    0    3          - 5785.96810     -      -    0s
     0     0 5792.18286    0    3          - 5792.18286     -      -    0s
     0     0 5794.07215    0    3          - 5794.07215     -      -    0s
     0     0 5794.52965    0    3          - 5794.52965     -      -    0s
     0     0 5794.61687    0    3          - 5794.61687     -      -    0s
     0     0 5794.70282    0    3          - 5794.70282     -      -    0s
     0     2 5794.70282    0    3          - 5794.70282     -      -    1s
*   19     3              10    5812.3255371 5812.32543  0.00%   241    1s

Cutting planes:
  Gomory: 1
  Cover: 3
  Flow cover: 1

Explored 20 nodes (4666 simplex iterations) in 1.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537147e+03, best bound 5.812325434979e+03, gap 0.0000%