| author | wenzelm |
| Tue, 11 Oct 2016 20:31:13 +0200 | |
| changeset 64149 | 1380bf90d986 |
| parent 51404 | 90a598019aeb |
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<H2>UNITY: Examples Involving Program Composition</H2> |
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<P> |
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The directory presents verification examples involving program composition. |
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They are mostly taken from the works of Chandy, Charpentier and Chandy. |
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<UL> |
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<LI>examples of <em>universal properties</em>: |
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the counter (<A HREF="Counter.thy"><CODE>Counter.thy</CODE></A>) |
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and priority system (<A HREF="Priority.thy"><CODE>Priority.thy</CODE></A>) |
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<LI>the allocation system (<A HREF="Alloc.thy"><CODE>Alloc.thy</CODE></A>) |
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<LI>client implementation (<A HREF="Client.thy"><CODE>Client.thy</CODE></A>) |
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<LI>allocator implementation (<A HREF="AllocImpl.thy"><CODE>AllocImpl.thy</CODE></A>) |
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<LI>the handshake protocol |
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(<A HREF="Handshake.thy"><CODE>Handshake.thy</CODE></A>) |
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<LI>the timer array (demonstrates arrays of processes) |
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(<A HREF="TimerArray.thy"><CODE>TimerArray.thy</CODE></A>) |
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</UL> |
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<P> Safety proofs (invariants) are often proved automatically. Progress |
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proofs involving ENSURES can sometimes be proved automatically. The |
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level of automation appears to be about the same as in HOL-UNITY by Flemming |
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Andersen et al. |
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<ADDRESS> |
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<A NAME="lcp@cl.cam.ac.uk" HREF="mailto:lcp@cl.cam.ac.uk">lcp@cl.cam.ac.uk</A> |
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</ADDRESS> |
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