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simplify: remove an incorrect simplification rule

Browse source 
Fortunately was only enabled with the
ltl_simplifier_options::favor_event_univ option, which cannot yet be
turned on from the command-line tools.

* src/ltlvisit/simplify.cc, doc/tl/tl.tex: Remove the rule.
* src/ltltest/eventuniv.test: Adjust.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2014-05-13 17:26:53 +02:00
parent 362862dace
commit d741d9266d
4 changed files with 8 additions and 26 deletions
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19
src/ltlvisit/simplify.cc
View file

@ -2075,7 +2075,6 @@ namespace spot
// (a W (b|e)) = (a W b)|e
// (a U (b&q)) = (a U b)&q
// ((a&q) M b) = (a M b)&q
// ((a|u) W b) = u|(a W b)
// (a R (b&u)) = (a R b)&u
// (a M (b&u)) = (a M b)&u
if (opt_.favor_event_univ)
@ -2099,24 +2098,6 @@ namespace spot
b2->destroy();
delete s.res_Event;
}
if (op == binop::W)
if (const multop* mo = is_Or(a))
{
a->clone();
mospliter s(mospliter::Split_Univ, mo, c_);
const formula* a2 =
multop::instance(multop::Or, s.res_other);
if (a2 != a)
{
a->destroy();
s.res_Univ->push_back(binop::instance(op, a2, b));
result_ = recurse_destroy
(multop::instance(multop::Or, s.res_Univ));
return;
}
a2->destroy();
delete s.res_Univ;
}
if (op == binop::U)
if (const multop* mo = is_And(b))
{