Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:20 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 3.291317e+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 3291.31685    0    7          - 3291.31685     -      -    0s
     0     0 3291.80705    0    9          - 3291.80705     -      -    0s
     0     0 3291.80734    0    9          - 3291.80734     -      -    0s
     0     0 3292.10915    0    5          - 3292.10915     -      -    0s
     0     0 3292.10915    0    5          - 3292.10915     -      -    0s
     0     0 3292.10915    0    4          - 3292.10915     -      -    0s
     0     0 3292.23961    0    2          - 3292.23961     -      -    0s
     0     0 3292.24577    0    5          - 3292.24577     -      -    0s
     0     0 3292.25191    0    5          - 3292.25191     -      -    0s
     0     0 3292.31038    0    2          - 3292.31038     -      -    0s
     0     0 3292.31038    0    2          - 3292.31038     -      -    0s
     0     2 3292.32569    0    2          - 3292.32569     -      -    0s
*    7     0               4    3292.3314038 3292.33140   0.0%   3.6    0s

Cutting planes:
  Cover: 1
  Implied bound: 3

Explored 8 nodes (108 simplex iterations) in 0.12 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.292331403819e+03, best bound 3.292331403819e+03, gap 0.0%