The Prenucleolus (Prescision=15 places): 

x1 = 1.5000000000000004 
x2 = 1.5000000000000004 
x3 = 2.0000000000000009 

Excesses:

3.0000000000000000 ( )
-0.0000000000000018 ( 1 2 3 )
-1.5000000000000004 ( 2 )
-1.5000000000000004 ( 1 )
-1.5000000000000013 ( 2 3 )
-1.5000000000000013 ( 1 3 )
-2.0000000000000009 ( 3 )
-3.0000000000000009 ( 1 2 )

Vector v:

3.0000000000000000 ( )
0.0000000000000000 ( 3 )
0.0000000000000000 ( 2 )
2.0000000000000000 ( 2 3 )
0.0000000000000000 ( 1 )
2.0000000000000000 ( 1 3 )
0.0000000000000000 ( 1 2 )
5.0000000000000000 ( 1 2 3 )