We are both right: in the log I looked at, the proofs only left 90 minutes for the presentation until timeout (hence no upper bound), but as you point out, if the proofs are shorter, the presentation part will happily use the rest of the 4 hours.

Tobias

On 16/11/2021 09:06, Gerwin Klein wrote:
I'm not sure it's that, although it might be related. The log looks like the 
presentation part went on for almost the full 4h, which sure isn't how long it 
is supposed to take.

Cheers,
Gerwin

On 16 Nov 2021, at 19:02, Tobias Nipkow <[email protected]> wrote:

Oops, hadn't noticed that. The hard timing facts: The presentation part, which 
used to take 35-40 mins is now taking 90 minutes at least, and we don't have an 
upper bound (because of the timeout). Of course we could try to increase the 
timeout and see what happens. The problem is largely due to the fact that 
theory presentation used to be incremental (quite some time ago) but these 
days, even if only 1 AFP entry has changed, the presentation for the entire AFP 
is built.

Tobias

On 16/11/2021 06:42, Gerwin Klein wrote:
It looks like since 12 Nov at isabelle@2b212c8138a5 the AFP build has been 
timing out towards the end of theory/file presentation despite everything else 
being successful (logs at 
https://ci.isabelle.systems/jenkins/job/isabelle-all/3298/ for the morbidly 
curious). For some reason Jenkins decided that no emails needed to be sent for 
that.
I haven't been able to reproduce the problem locally, but this is happening 
even for small AFP changes where the proofs are finished after a few minutes, 
e.g. in https://ci.isabelle.systems/jenkins/job/isabelle-all/3301/consoleText 
(for afp-devel@7c831b848ada135a and isabelle@4f1c1c7eb95f4) so it's not the 
global timeout that is the issue. It does really seem to either hang or take 
very long for the presentation part.
To make testing worse, the entry Complex_Bounded_Operators is currently broken 
since (I think) Manuel's recent afp-devel commit 7aec7688b019. Manuel, could 
you please have a look at that?
In any case, I can't do the AFP release fork in this state, and will have to 
postpone until we've figured out what is going on with the presentation part.
Cheers,
Gerwin
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