diff --git a/src/libasr/pass/pass_utils.h b/src/libasr/pass/pass_utils.h
index 884195de25..2a34ef0f15 100644
--- a/src/libasr/pass/pass_utils.h
+++ b/src/libasr/pass/pass_utils.h
@@ -831,13 +831,15 @@ namespace LCompilers {
                 s_func_type->n_arg_types = arg_types.n;
                 s_func_type->m_return_var_type = nullptr;
 
-                Vec<ASR::stmt_t*> func_body;
-                func_body.reserve(al, x->n_body - 1);
-                for (size_t i=0; i< x->n_body - 1; i++) {
-                    func_body.push_back(al, x->m_body[i]);
+                if (ASR::is_a<ASR::Return_t>(*x->m_body[x->n_body - 1])) {
+                    Vec<ASR::stmt_t*> func_body;
+                    func_body.reserve(al, x->n_body - 1);
+                    for (size_t i=0; i< x->n_body - 1; i++) {
+                        func_body.push_back(al, x->m_body[i]);
+                    }
+                    x->m_body = func_body.p;
+                    x->n_body = func_body.n;
                 }
-                x->m_body = func_body.p;
-                x->n_body = func_body.n;
             }
         }
         for (auto &item : x->m_symtab->get_scope()) {
diff --git a/src/libasr/pass/replace_symbolic.cpp b/src/libasr/pass/replace_symbolic.cpp
index 4464a1a1f4..cf3da1acf1 100644
--- a/src/libasr/pass/replace_symbolic.cpp
+++ b/src/libasr/pass/replace_symbolic.cpp
@@ -269,10 +269,16 @@ class ReplaceSymbolicVisitor : public PassUtils::PassVisitor<ReplaceSymbolicVisi
 
         ASR::ttype_t* f_signature= xx.m_function_signature;
         ASR::FunctionType_t *f_type = ASR::down_cast<ASR::FunctionType_t>(f_signature);
-        ASR::ttype_t *type1 = ASRUtils::TYPE(ASR::make_CPtr_t(al, xx.base.base.loc));
+        ASR::ttype_t *CPtr_type = ASRUtils::TYPE(ASR::make_CPtr_t(al, xx.base.base.loc));
         for (size_t i = 0; i < f_type->n_arg_types; ++i) {
             if (f_type->m_arg_types[i]->type == ASR::ttypeType::SymbolicExpression) {
-                f_type->m_arg_types[i] = type1;
+                f_type->m_arg_types[i] = CPtr_type;
+            } else if (f_type->m_arg_types[i]->type == ASR::ttypeType::List) {
+                ASR::List_t* list = ASR::down_cast<ASR::List_t>(f_type->m_arg_types[i]);
+                if (list->m_type->type == ASR::ttypeType::SymbolicExpression){
+                    ASR::ttype_t* list_type = ASRUtils::TYPE(ASR::make_List_t(al, xx.base.base.loc, CPtr_type));
+                    f_type->m_arg_types[i] = list_type;
+                }
             }
         }
 
@@ -592,6 +598,17 @@ class ReplaceSymbolicVisitor : public PassUtils::PassVisitor<ReplaceSymbolicVisi
                 ASR::expr_t* function_call = process_attributes(xx.base.base.loc, xx.m_test);
                 xx.m_test = function_call;
             }
+        } else if (ASR::is_a<ASR::LogicalNot_t>(*xx.m_test)) {
+            ASR::LogicalNot_t* logical_not = ASR::down_cast<ASR::LogicalNot_t>(xx.m_test);
+            if (ASR::is_a<ASR::IntrinsicScalarFunction_t>(*logical_not->m_arg)) {
+                ASR::IntrinsicScalarFunction_t* intrinsic_func = ASR::down_cast<ASR::IntrinsicScalarFunction_t>(logical_not->m_arg);
+                if (intrinsic_func->m_type->type == ASR::ttypeType::Logical) {
+                    ASR::expr_t* function_call = process_attributes(xx.base.base.loc, logical_not->m_arg);
+                    ASR::expr_t* new_logical_not = ASRUtils::EXPR(ASR::make_LogicalNot_t(al, xx.base.base.loc, function_call,
+                        logical_not->m_type, logical_not->m_value));
+                    xx.m_test = new_logical_not;
+                }
+            }
         }
     }