Test LB

C LB+o-o+o-o
Hash=bec2503876b0aa74810b4e3e4559c90b

{x=0; y=0;}


P0(int* x,int* y) {
  int r1 = READ_ONCE(*x);
  WRITE_ONCE(*y,1);
}

P1(int* x,int* y) {
  int r3 = READ_ONCE(*y);
  WRITE_ONCE(*x,1);
}

exists (0:r1=1 /\ 1:r3=1)

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