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fix #5303

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Nikolaj Bjorner 2021-05-25 10:20:20 -07:00
parent 36ca98cbbe
commit 322531e95c
1 changed files with 2 additions and 1 deletions
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3
src/tactic/core/elim_uncnstr_tactic.cpp
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@ -21,6 +21,7 @@ Notes:
#include "ast/rewriter/rewriter_def.h" #include "ast/rewriter/rewriter_def.h"
#include "ast/arith_decl_plugin.h" #include "ast/arith_decl_plugin.h"
#include "ast/bv_decl_plugin.h" #include "ast/bv_decl_plugin.h"
#include "ast/recfun_decl_plugin.h"
#include "ast/array_decl_plugin.h" #include "ast/array_decl_plugin.h"
#include "ast/datatype_decl_plugin.h" #include "ast/datatype_decl_plugin.h"
#include "tactic/core/collect_occs.h" #include "tactic/core/collect_occs.h"
@ -784,7 +785,7 @@ class elim_uncnstr_tactic : public tactic {
m_vars.reset(); m_vars.reset();
collect_occs p; collect_occs p;
p(*g, m_vars); p(*g, m_vars);
if (m_vars.empty()) { if (m_vars.empty() || recfun::util(m()).has_defs()) {
result.push_back(g.get()); result.push_back(g.get());
// did not increase depth since it didn't do anything. // did not increase depth since it didn't do anything.
return; return;