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fix is_generalized_rabin() and is_generalized_streett()

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Fixes #325.

* spot/twa/acc.cc: Here.
* tests/core/accsimpl.test: New test case.
* NEWS: Mention the issue.
This commit is contained in:
Alexandre Duret-Lutz 2018-02-16 16:34:08 +01:00
parent 9ec6e9172c
commit 5a2e4f54c5
3 changed files with 36 additions and 6 deletions
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13
spot/twa/acc.cc
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@ -666,7 +666,7 @@ namespace spot
auto s = code_.back().sub.size;
acc_cond::mark_t seen_fin = 0U;
acc_cond::mark_t seen_inf = 0U;
// Each pairs is the position of a Fin followed
// Each pair is the position of a Fin followed
// by the number of Inf.
std::map<unsigned, unsigned> p;
while (s)
@ -697,7 +697,7 @@ namespace spot
unsigned i = m2.count();
// If we have seen this pair already, it must have the
// same size.
if (p.emplace(m1.max_set(), i).first->second != i)
if (p.emplace(m1.max_set() - 1, i).first->second != i)
return false;
assert(i > 0);
unsigned j = m1.max_set(); // == n+1
@ -705,7 +705,6 @@ namespace spot
if (!m2.has(j++))
return false;
while (--i);
seen_fin |= m1;
seen_inf |= m2;
}
@ -715,8 +714,10 @@ namespace spot
for (auto s: m1.sets())
// If we have seen this pair already, it must have the
// same size.
if (p.emplace(s, 0U).first->second != 0U)
return false;
{
if (p.emplace(s, 0U).first->second != 0U)
return false;
}
seen_fin |= m1;
}
else
@ -777,7 +778,7 @@ namespace spot
unsigned i = m2.count();
// If we have seen this pair already, it must have the
// same size.
if (p.emplace(m1.max_set(), i).first->second != i)
if (p.emplace(m1.max_set() - 1, i).first->second != i)
return false;
assert(i > 0);
unsigned j = m1.max_set(); // == n+1