Test auto/RR-G+RR-G

LISA auto/RR-G+RR-G
(*
 * Result: Never
 * 
 * Process 0 starts (t=100000).
 * 
 * P0 advances one grace period (t=200000).
 * 
 * P1 advances one grace period (t=300001).
 * 
 * Process 0 start at t=100000, process 2 end at t=300001: Cycle forbidden.
 *)
{
}
 P0            | P1            | P2           ;
 r[once] r1 x0 | r[once] r1 x1 | w[once] x0 1 ;
 f[sync]       | f[sync]       | w[once] x1 1 ;
 r[once] r2 x1 | r[once] r2 x0 |              ;
Observed
    1:r2=1; 1:r1=1; 0:r2=0; 0:r1=1;
and 1:r2=1; 1:r1=0; 0:r2=0; 0:r1=1;
and 1:r2=0; 1:r1=0; 0:r2=0; 0:r1=1;