Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:13 2013

Optimize a model with 32 rows, 1045 columns and 12039 nonzeros
Presolve removed 12 rows and 36 columns
Presolve time: 0.04s
Presolved: 20 rows, 1009 columns, 11016 nonzeros
Variable types: 1000 continuous, 9 integer (9 binary)

Root relaxation: objective 2.689073e+03, 13 iterations, 0.00 seconds

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

     0     0 2689.07287    0    3          - 2689.07287     -      -    0s
     0     0 2689.07478    0    3          - 2689.07478     -      -    0s
     0     0 2689.07482    0    3          - 2689.07482     -      -    0s
     0     0 2689.08972    0    4          - 2689.08972     -      -    0s
     0     0 2689.08972    0    4          - 2689.08972     -      -    0s
H    0     0                    2689.1101631 2689.08972  0.00%     -    0s

Cutting planes:
  Implied bound: 2
  Flow cover: 1

Explored 0 nodes (41 simplex iterations) in 0.48 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.689110163075e+03, best bound 2.689089723746e+03, gap 0.0008%