Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:19 2013

Optimize a model with 32 rows, 522 columns and 5551 nonzeros
Presolve removed 12 rows and 12 columns
Presolve time: 0.01s
Presolved: 20 rows, 510 columns, 5027 nonzeros
Variable types: 501 continuous, 9 integer (9 binary)

Root relaxation: objective 2.970073e+03, 15 iterations, 0.00 seconds

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

     0     0 2970.07290    0    8          - 2970.07290     -      -    0s
     0     0 2970.24242    0    9          - 2970.24242     -      -    0s
     0     0 2970.24915    0    9          - 2970.24915     -      -    0s
     0     0 2970.24915    0    9          - 2970.24915     -      -    0s
     0     0 2970.33537    0    6          - 2970.33537     -      -    0s
     0     0 2970.33537    0    6          - 2970.33537     -      -    0s
     0     0 2970.33537    0    5          - 2970.33537     -      -    0s
     0     0 2970.33537    0    6          - 2970.33537     -      -    0s
     0     0 2970.35620    0    5          - 2970.35620     -      -    0s
     0     0 2970.35939    0    6          - 2970.35939     -      -    0s
     0     0 2970.35966    0    6          - 2970.35966     -      -    0s
     0     0 2970.35966    0    6          - 2970.35966     -      -    0s
H    0     0                    2970.4554798 2970.35966  0.00%     -    0s

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

Explored 0 nodes (93 simplex iterations) in 0.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.970455479823e+03, best bound 2.970359661798e+03, gap 0.0032%