C MP+poonceonces (* * Result: Maybe * * Can the counter-intuitive message-passing outcome be prevented with * no ordering at all? *) {} P0(int *x, int *y) { WRITE_ONCE(*x, 1); WRITE_ONCE(*y, 1); } P1(int *x, int *y) { int r0; int r1; r0 = READ_ONCE(*y); r1 = READ_ONCE(*x); } exists (1:r0=1 /\ 1:r1=0)
