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source:
vis_dev/vis-2.1/examples/treearbiter/8-arbit.ltl
@
11
| Last change on this file since 11 was 11, checked in by , 13 years ago | |
|---|---|
| File size: 390 bytes | |
| Rev | Line | |
|---|---|---|
| [11] | 1 | # never have both cells holding the token at the same time |
| 2 | G !(G1.C1.holdToken = myTRUE * G1.C2.holdToken = myTRUE); | |
| 3 | ||
| 4 | # never have G1.P3 and G1.P2 holding the token; | |
| 5 | # actually need a formula for each pair of procs... | |
| 6 | G !(G1.P3.procState = lock * G1.P2.procState = lock); | |
| 7 | ||
| 8 | # ensures liveness - needs fairness on the procs to pass | |
| 9 | G (G1.P3.procState = request -> F(G1.P3.procState = lock)); |
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