-typedef HashSet<struct pred_expr *, uintptr_t, 0, model_malloc, model_calloc, model_free, pred_expr_hash, pred_expr_equal> PredicateSet;
+typedef HashSet<struct pred_expr *, uintptr_t, 0, model_malloc, model_calloc, model_free, pred_expr_hash, pred_expr_equal> PredSet;
+typedef HSIterator<struct pred_expr *, uintptr_t, 0, model_malloc, model_calloc, model_free, pred_expr_hash, pred_expr_equal> PredSetIter;