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