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| C CoRW+poonceonce+Once
|
| (*
| * Result: Never
| *
| * Test of read-write coherence, that is, whether or not a read from
| * a given variable and a later write to that same variable are ordered.
| *)
|
| {}
|
| P0(int *x)
| {
| int r0;
|
| r0 = READ_ONCE(*x);
| WRITE_ONCE(*x, 1);
| }
|
| P1(int *x)
| {
| WRITE_ONCE(*x, 2);
| }
|
| exists (x=2 /\ 0:r0=2)
|
|
