fix bug in array rewriter introduced in 202ce1e

Z3Prover · Jun 21, 2022 · 41deed5 · 41deed5
1 parent 36a1f75
commit 41deed5
Showing 1 changed file with 4 additions and 11 deletions.
diff --git a/src/ast/rewriter/array_rewriter.cpp b/src/ast/rewriter/array_rewriter.cpp
@@ -174,21 +174,14 @@ br_status array_rewriter::mk_select_core(unsigned num_args, expr * const * args,
             result = to_app(args[0])->get_arg(num_args);
             return BR_DONE;
         case l_false: {
-            expr* arg0 = args[0];
-            expr* arg1 = to_app(arg0)->get_arg(0);
-#if 0
-            IF_VERBOSE(0, verbose_stream() << mk_pp(arg0, m()) << "\n");
-            while (m_util.is_store(arg1) && compare_args<true>(num_args-1, args + 1, to_app(arg0)->get_args() + 1) == l_false) {
-                IF_VERBOSE(0, verbose_stream() << "diff: " << mk_pp(arg1, m()) << "\n");
-
-                arg0 = arg1;
-                arg1 = to_app(arg0)->get_arg(0);
+            expr* arg0 = to_app(args[0])->get_arg(0);
+            while (m_util.is_store(arg0) && compare_args<true>(num_args-1, args + 1, to_app(arg0)->get_args() + 1) == l_false) {
+                arg0 = to_app(arg0)->get_arg(0);
             }
-#endif
 
             // select(store(a, I, v), J) --> select(a, J) if I != J
             ptr_buffer<expr> new_args;
-            new_args.push_back(arg1);
+            new_args.push_back(arg0);
             new_args.append(num_args-1, args+1);
             result = m().mk_app(get_fid(), OP_SELECT, num_args, new_args.data());
             return BR_REWRITE1;