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Added unit (not char) case in apply_const_nielsen

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CEisenhofer 2026-03-24 13:34:39 +01:00
parent b74f0bbb00
commit 538fbc1b8d
2 changed files with 2 additions and 4 deletions
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src/smt/seq/seq_nielsen.cpp
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@ -2011,7 +2011,7 @@ namespace seq {
// char vs var: branch 1: var -> ε, branch 2: var -> char·var (depending on direction)
// NSB review: add also case var -> unit·var
euf::snode* char_head = lhead->is_char() ? lhead : (rhead->is_char() ? rhead : nullptr);
euf::snode* char_head = (lhead->is_char() || lhead->is_unit()) ? lhead : ((rhead->is_char() || rhead->is_unit()) ? rhead : nullptr);
euf::snode* var_head = lhead->is_var() ? lhead : (rhead->is_var() ? rhead : nullptr);
if (char_head && var_head) {
nielsen_node* child = mk_child(node);