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Fix

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This commit is contained in:
CEisenhofer 2026-04-08 09:27:46 +02:00
parent f895548154
commit c7e7b40d40
3 changed files with 9 additions and 3 deletions
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5
src/smt/seq/seq_nielsen.cpp
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@ -267,6 +267,7 @@ namespace seq {
}
void nielsen_node::apply_subst(euf::sgraph& sg, nielsen_subst const& s) {
SASSERT(!s.m_var->is_char_or_unit() || s.m_replacement->is_char_or_unit());
SASSERT(s.m_var);
SASSERT(s.m_replacement != nullptr);
for (auto &eq : m_str_eq) {
@ -294,9 +295,11 @@ namespace seq {
if (s.is_char_subst()) {
ast_manager& m = graph().get_manager();
expr* var_c_expr = s.m_var->arg(0)->get_expr();
expr* repl_c_expr = s.m_replacement->arg(0)->get_expr();
add_constraint(
constraint(
m.mk_eq(s.m_var->get_expr(), s.m_replacement->get_expr()), s.m_dep, m));
m.mk_eq(var_c_expr, repl_c_expr), s.m_dep, m));
if (m_char_ranges.contains(var_id)) {
auto range = m_char_ranges.find(var_id); // copy exactly