1C MP+poonceonces
2
3(*
4 * Result: Maybe
5 *
6 * Can the counter-intuitive message-passing outcome be prevented with
7 * no ordering at all?
8 *)
9
10{}
11
12P0(int *x, int *y)
13{
14	WRITE_ONCE(*x, 1);
15	WRITE_ONCE(*y, 1);
16}
17
18P1(int *x, int *y)
19{
20	int r0;
21	int r1;
22
23	r0 = READ_ONCE(*y);
24	r1 = READ_ONCE(*x);
25}
26
27exists (1:r0=1 /\ 1:r1=0)
28