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don't unfold recursive defs if there is an uninterpreted subterm, #7671

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2025-12-10 00:26:21 -08:00
parent c7f6cead9b
commit 175625f43c
1 changed files with 3 additions and 0 deletions
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src/ast/rewriter/recfun_rewriter.cpp
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@ -34,6 +34,9 @@ br_status recfun_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr *
for (unsigned i = 0; i < num_args; ++i)
if (!m.is_value(args[i]))
safe_to_subst = false;
for (auto t : subterms::all(expr_ref(r, m)))
if (is_uninterp(t))
return BR_FAILED;
// check if there is an argument that is a constructor
// such that the recursive function can be partially evaluated.