event set queens

event nodiag_fail(
/* 0 */	test_failed:	string,
/* 1 */	arg_b:		int,
/* 2 */	arg_d:		int,
/* 3 */	arg_list_len:	int synthesized by list_len_func(sorted_list),
/* 4 */	sorted_list:	list(int) synthesized by list_sort_func(arg_list),
/* 5 */	list_len_func:	function,
/* 6 */	list_sort_func:	function,
/* 7 */	arg_list:	list(int)
)

event safe_test(
	test_list:	listint,
	f:		function,
	excp:		int synthesized by f(test_list)
)