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deal with model construction, issue #684. fix model construction for ite #678. WIth this version, issue #686 does not repro

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-07-20 12:18:07 -07:00
parent cf48eb5f72
commit 60711bb0cd
4 changed files with 51 additions and 8 deletions
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16
src/smt/theory_seq_empty.h
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@ -126,6 +126,22 @@ namespace smt {
symbol sym;
if (u.str.is_string(n, sym)) {
m_strings.insert(sym);
if (sym.str().find(m_unique_delim) != std::string::npos) {
add_new_delim();
}
}
}
private:
void add_new_delim() {
bool found = true;
while (found) {
found = false;
m_unique_delim += "!";
symbol_set::iterator it = m_strings.begin(), end = m_strings.end();
for (; it != end && !found; ++it) {
found = it->str().find(m_unique_delim) != std::string::npos;
}
}
}
};