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fix and optimize not-contains and regex equalities

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-04-21 09:16:00 +02:00
parent c18188cba8
commit 352b14fe2b
4 changed files with 86 additions and 42 deletions
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18
src/smt/seq/seq_nielsen.h
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@ -371,10 +371,10 @@ namespace seq {
euf::snode* m_rhs;
dep_tracker m_dep;
str_eq() = default;
str_eq(euf::snode* lhs, euf::snode* rhs, dep_tracker const& dep):
m_lhs(lhs), m_rhs(rhs), m_dep(dep) {}
str_eq(euf::snode* lhs, euf::snode* rhs, dep_tracker const& dep):
m_lhs(lhs), m_rhs(rhs), m_dep(dep) {
SASSERT(well_formed());
}
bool operator==(str_eq const& other) const {
return m_lhs == other.m_lhs && m_rhs == other.m_rhs;
@ -388,6 +388,10 @@ namespace seq {
// check if the constraint contains a given variable
bool contains_var(euf::snode* var) const;
bool well_formed() const {
return !!m_lhs && !!m_rhs;
}
};
struct eq_pp {
@ -407,7 +411,7 @@ namespace seq {
euf::snode* m_regex;
dep_tracker m_dep;
str_mem(): m_str(nullptr), m_regex(nullptr), m_dep(nullptr) {}
// str_mem(): m_str(nullptr), m_regex(nullptr), m_dep(nullptr) {}
str_mem(euf::snode* str, euf::snode* regex, dep_tracker const& dep):
m_str(str), m_regex(regex), m_dep(dep) {}
@ -425,6 +429,10 @@ namespace seq {
// check if the constraint contains a given variable
bool contains_var(euf::snode* var) const;
bool well_formed() const {
return !!m_str && !!m_regex;
}
};
struct mem_pp {