https://www.starexec.org/starexec/services/jobs/pairs/615271002/log
yeah of course this does not work:
error when applying the rule removal technique on
rules:
a(b(a(b(a(x))))) -> b(x)
relative rules:
x ->= a(a(b(b(x))))
to remove the rules
a(b(a(b(a(x))))) -> b(x)
x -> a(a(b(b(x))))
the rule x ->= ... cannot be removed, and it does not have to, to show relative termination. Must be some error in my proof output. I wonder why it does not happen more often.