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regression fixes

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-04-02 11:42:50 -07:00
parent 9b3826ed86
commit 3629cd9447
1 changed files with 4 additions and 3 deletions
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7
src/smt/seq/seq_nielsen.cpp
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@ -251,7 +251,8 @@ namespace seq {
bool nielsen_node::add_constraint(constraint const &c) { bool nielsen_node::add_constraint(constraint const &c) {
if (graph().get_manager().is_and(c.fml)) { if (graph().get_manager().is_and(c.fml)) {
for (const auto f : *to_app(c.fml)) { for (const auto f : *to_app(c.fml)) {
add_constraint(constraint(f, c.dep, graph().get_manager())); if (!add_constraint(constraint(f, c.dep, graph().get_manager())))
return false;
} }
return true; return true;
} }
@ -1141,8 +1142,8 @@ namespace seq {
expr_ref d(rw.mk_derivative(mem.m_regex->get_expr()), m); expr_ref d(rw.mk_derivative(mem.m_regex->get_expr()), m);
// Extract the inner char expression from seq.unit(?inner) // Extract the inner char expression from seq.unit(?inner)
expr *unit_expr = tok->arg(0)->get_expr(), *inner_char; expr *inner_char = tok->arg(0)->get_expr();
// substitute the inner char for the derivative variable in d // substitute the inner char for the derivative variable in d
var_subst vs(m); var_subst vs(m);
d = vs(d, inner_char); d = vs(d, inner_char);