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fix model extraction for 0-ary recursive function declarations

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-11-01 09:55:27 -05:00
parent e75d07c1c1
commit d9e77ba443
1 changed files with 5 additions and 0 deletions
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5
src/smt/smt_context.cpp
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@ -4460,6 +4460,11 @@ namespace smt {
auto& def = u.get_def(f); auto& def = u.get_def(f);
expr* rhs = def.get_rhs(); expr* rhs = def.get_rhs();
if (!rhs) continue; if (!rhs) continue;
if (f->get_arity() == 0) {
m_model->register_decl(f, rhs);
continue;
}
func_interp* fi = alloc(func_interp, m, f->get_arity()); func_interp* fi = alloc(func_interp, m, f->get_arity());
// reverse argument order so that variable 0 starts at the beginning. // reverse argument order so that variable 0 starts at the beginning.
expr_ref_vector subst(m); expr_ref_vector subst(m);