Test SB

C SB+o-o+o-o
Hash=33d7b2f877caab8ecb8f9a26bf3b2770

{x=0; y=0;}


P0(int* x,int* y) {
  WRITE_ONCE(*x,1);
  int r2 = READ_ONCE(*y);
}

P1(int* x,int* y) {
  WRITE_ONCE(*y,1);
  int r4 = READ_ONCE(*x);
}

exists (0:r2=0 /\ 1:r4=0)

C11 equivalent: c11-prop-src/sb+o-o+o-o.litmus