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remove incorrect assertion, make sat case for range + size conservative

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-12-06 13:07:14 -08:00
parent e90512388c
commit 1d3f6a7c70
3 changed files with 48 additions and 9 deletions
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42
src/ast/rewriter/finite_set_axioms.cpp
View file

@ -33,23 +33,55 @@ std::ostream& operator<<(std::ostream& out, theory_axiom const& ax) {
}
void finite_set_axioms::add_unit(char const *name, expr *p1, expr *unit) {
expr_ref _f1(unit, m);
if (is_true(unit))
return;
theory_axiom *ax = alloc(theory_axiom, m, name, p1);
ax->clause.push_back(unit);
m_add_clause(ax);
}
bool finite_set_axioms::is_true(expr *f) {
if (m.is_true(f))
return true;
if (m.is_not(f, f) && m.is_false(f))
return true;
return false;
}
bool finite_set_axioms::is_false(expr* f) {
if (m.is_false(f))
return true;
if (m.is_not(f, f) && m.is_true(f))
return true;
return false;
}
void finite_set_axioms::add_binary(char const *name, expr *p1, expr *p2, expr *f1, expr *f2) {
expr_ref _f1(f1, m), _f2(f2, m);
if (is_true(f1) || is_true(f2))
return;
theory_axiom *ax = alloc(theory_axiom, m, name, p1, p2);
ax->clause.push_back(f1);
ax->clause.push_back(f2);
if (!is_false(f1))
ax->clause.push_back(f1);
if (!is_false(f2))
ax->clause.push_back(f2);
m_add_clause(ax);
}
void finite_set_axioms::add_ternary(char const *name, expr *p1, expr *p2, expr *f1, expr *f2, expr *f3) {
expr_ref _f1(f1, m), _f2(f2, m), _f3(f3, m);
if (is_true(f1) || is_true(f2) || is_true(f3))
return;
theory_axiom *ax = alloc(theory_axiom, m, name, p1, p2);
ax->clause.push_back(f1);
ax->clause.push_back(f2);
ax->clause.push_back(f3);
if (!is_false(f1))
ax->clause.push_back(f1);
if (!is_false(f2))
ax->clause.push_back(f2);
if (!is_false(f3))
ax->clause.push_back(f3);
m_add_clause(ax);
}

4
src/ast/rewriter/finite_set_axioms.h
View file

@ -52,6 +52,10 @@ class finite_set_axioms {
void add_ternary(char const *name, expr *p1, expr *p2, expr *f1, expr *f2, expr *f3);
bool is_true(expr *f);
bool is_false(expr *f);
public:
finite_set_axioms(ast_manager &m) : m(m), u(m), m_rewriter(m) {}