Arbortext Command Language > set Command Options > set traceback
  
set traceback
set traceback=n
The set traceback command allows you to set the number of levels displayed in the function call traceback if a user-defined ACL function aborts with a runtime error. The default is 10. If you set traceback to 0 (zero), you disable the function call traceback.
Examples
set traceback=20
set traceback=6
set traceback=0