substitute into non-ground regexes

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
Z3Prover · Jun 9, 2020 · b0da540 · b0da540
1 parent bac4726
commit b0da540
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/smt/seq_regex.cpp b/src/smt/seq_regex.cpp
@@ -275,6 +275,9 @@ namespace smt {
 #endif
             }
         }
+        if (!is_ground(d)) {
+            d = subst(d, sub);
+        }
         // at this point there should be no free variables as the ites are at top-level.
         if (!re().is_empty(d)) 
             conds.push_back(th.mk_literal(sk().mk_accept(s, a().mk_int(idx + 1), d)));