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test

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2025-10-14 18:01:41 +02:00
parent a1b831a3e1
commit f2260d959d
2 changed files with 24 additions and 6 deletions
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23
src/ast/converters/expr_inverter.cpp
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@ -828,16 +828,28 @@ class finite_set_inverter : public iexpr_inverter {
public:
finite_set_inverter(ast_manager& m): iexpr_inverter(m), fs(m) {}
family_id get_fid() const override { return fs.get_family_id(); }
bool operator()(func_decl* f, unsigned num, expr* const* args, expr_ref& r) override {
switch (f->get_decl_kind()) {
case OP_FINITE_SET_UNION:
// x union y -> fresh
// x := fresh, y := empty
// x union y -> x
// y := x
if (num == 2 && uncnstr(args[0]) && uncnstr(args[1])) {
mk_fresh_uncnstr_var_for(f, r);
r = args[0];
if (m_mc) {
add_def(args[0], r);
add_def(args[1], fs.mk_empty(args[1]->get_sort()));
add_def(args[1], r);
}
return true;
}
return false;
case OP_FINITE_SET_INTERSECT:
// x intersect y -> x
// y := x
if (num == 2 && uncnstr(args[0]) && uncnstr(args[1])) {
r = args[0];
if (m_mc) {
add_def(args[1], r);
}
return true;
}
@ -1001,6 +1013,7 @@ expr_inverter::expr_inverter(ast_manager& m): iexpr_inverter(m) {
add(alloc(basic_expr_inverter, m, *this));
add(alloc(seq_expr_inverter, m));
//add(alloc(pb_expr_inverter, m));
add(alloc(finite_set_inverter, m));
}