Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:59 2013

Optimize a model with 7587 rows, 7317 columns and 29187 nonzeros
Presolve removed 939 rows and 0 columns
Presolve time: 0.04s
Presolved: 6648 rows, 7317 columns, 27309 nonzeros
Variable types: 7290 continuous, 27 integer (27 binary)

Root relaxation: objective 2.828436e+04, 978 iterations, 0.04 seconds

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

     0     0 28284.3636    0    1          - 28284.3636     -      -    0s
H    0     0                    28350.000000 28284.3636  0.23%     -    0s
H    0     0                    28309.000000 28284.3636  0.09%     -    0s
     0     0 28286.2941    0    1 28309.0000 28286.2941  0.08%     -    0s
     0     0 28286.4667    0    1 28309.0000 28286.4667  0.08%     -    0s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 0 nodes (1003 simplex iterations) in 0.17 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.830900000000e+04, best bound 2.830900000000e+04, gap 0.0%