==> YES, main.fstb terminates. max_dim = 2

+-----------------------------------------------------------------------------+
|                             Ranking Function                                |
+-----------------------------------------------------------------------------+

state f1:
1

state f2:
0
(-2+A)+B

state ____f1:
2


+-----------------------------------------------------------------------------+
|                         Worst Case Execution Time                           |
+-----------------------------------------------------------------------------+

/---
/
| -1*A__o' >= 0
| 1 >= 0
\

1+1

/
| -1*B__o' >= 0
| 1 >= 0
\

1+1

/
| -1+B__o' >= 0
| -1+A__o' >= 0
| 1 >= 0
\

(1+((-1+B__o')+A__o'))+1

\---