Test IRRWIW+poacquireacquire+poacquirerelease+ReleaseOnce

LISA IRRWIW+poacquireacquire+poacquirerelease+ReleaseOnce
"RfeReleaseAcquire PodRRAcquireAcquire FreAcquireOnce RfeOnceAcquire PodRWAcquireRelease WseReleaseRelease"
Cycle=PodRRAcquireAcquire FreAcquireOnce RfeOnceAcquire PodRWAcquireRelease WseReleaseRelease RfeReleaseAcquire
Relax=FreAcquireOnce RfeOnceAcquire RfeReleaseAcquire WseReleaseRelease
Safe=PodRRAcquireAcquire PodRWAcquireRelease
Prefetch=1:x=F,1:y=T,3:y=F,3:x=W
Com=Rf Fr Rf Ws
Orig=RfeReleaseAcquire PodRRAcquireAcquire FreAcquireOnce RfeOnceAcquire PodRWAcquireRelease WseReleaseRelease
{
}
 P0             | P1              | P2          | P3              ;
 w[release] x 2 | r[acquire] r0 x | w[once] y 1 | r[acquire] r0 y ;
                | r[acquire] r1 y |             | w[release] x 1  ;
Observed
    x=2; 3:r0=1; 1:r1=0; 1:r0=2;