[isabelle-dev] Nonterminating AFP build

[Lawrence Paulson]

There are multiple failures in PMF_OF_List. It looks like the behaviour of simplification has changed concerning the functions ennreal and ereal.
Larry

> On 12 May 2016, at 11:39, Lawrence Paulson <lp15 at cam.ac.uk> wrote:
> 
> It has no timeout, sorry, that was my fault. Now set to 300 seconds.
> 
> We don’t need a global timeout, but why not a default timeout? We could set up to the median runtime. Actually I think our typical value of 600 seconds is much too high, considering that a loop in a common library could make dozens of entries run forever.
> Larry
> 
>> On 11 May 2016, at 23:58, Gerwin Klein <Gerwin.Klein at nicta.com.au> wrote:
>> 
>> If it doesn’t have a timeout set, then that’s a mistake and should be fixed. It’d be good to have protection for all builds, not only through Jenkins.
>> 
>> We’ve avoided a global timeout so far, because it’d have to be fairly long, i.e. if you have a few entries that don’t terminate because of a change in Isabelle for instance, you might very quickly be looking at multiple days.
>> 
>> Might still be a good idea to add one anyway as an additional safety net.
>> 
>> Cheers,
>> Gerwin
>> 
>> 
>> 
>>> On 12.05.2016, at 06:58, Lars Hupel <hupel at in.tum.de> wrote:
>>> 
>>> Isabelle/8326aa594273
>>> AFP/ffea2c11f257
>>> 
>>> We appear to have an issue with nonterminating builds. See here:
>>> <https://ci.isabelle.systems/jenkins/job/afp-repo-afp/189/consoleFull>.
>>> I had to manually kill the running poly process. I'm not quite sure
>>> which session causes it, but it's possibly Randomised_Social_Choice. I
>>> was under the assumption that all AFP sessions had timeouts set –
>>> apparently this is not the case.
>>> 
>>> In order to avoid these problems in the future, I'll implement job
>>> timeouts in Jenkins.
>>> 
>>> Cheers
>>> Lars
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>> 
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