On Wed, Jun 6, 2012 at 1:51 PM, Rob Arthan <[email protected]> wrote:
> Tom Ridge and I formed two teams of one each using HOL4 and ProofPower-HOL
> (respectively) in the first VSTTE competition which was a slightly smaller
> scale affair at the previous VSTTE (it was a rather open-ended 2 hours
> during the conference rather than 48 hours strictly timed several weeks
> before). Tom and I both verified functional implementations written as
> recursive functions in the HOL object language. Several of the questions in
> the second competition were formulated in terms of imperative programs - so
> it was good to see that that didn't stop ACL-2 coming joint first. I didn't
> participate in the second competition because I didn't have anything like 2
> days to spare.
>
Although the problems were formulated in terms of imperative programs, in
the latest competition solutions for functional versions of the same
algorithms were also allowed. I think this will continue to be true in
later competitions.
>
> Depending on my availability, I wouldn't mind joining a "HOL family" team,
> with individuals using the HOL of their choice. But that might not be
> considered fair.
>
Cool - I like the idea of a "HOL family" team. I don't see any reason why
it would be unfair; "HOL family" is a reasonably coherent concept. In the
last competition, teams of up to 4 people were allowed with very few
restrictions. In particular, individuals can belong to more than one team,
more than one piece of software can be used by a team, and the software can
be modified during the competition.
>
> Regards,
>
> Rob.
>
> On 6 Jun 2012, at 11:24, Ramana Kumar wrote:
>
> Dear HOL users
>
> Would anyone be interested in entering a team using HOL4 or HOL Light to
> the "Verified Software: Theories, Tools and Experiments" competition next
> year (2013)?
> Information about the last competition is here:
> https://sites.google.com/site/vstte2012/.
> Winning teams used ACL2, KIV, Dafny, PVS, or VCC. I hear people made
> submissions using Isabelle and Coq, but apparently they didn't do as well.
> I don't know of anyone who tried using HOL4 or HOL Light.
>
> Next year's competition is probably several months away. I think it's a
> good opportunity to look at why HOL-based provers don't do so well (is it
> because the questions are biased against our tools, or because our tools
> suck, or because our community is too weak to put together a good team?)
> and improve our tools if necessary.
>
> Cheers,
> Ramana
>
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