#10941: ModularSymbols(4727).cuspidal_submodule().decomposition() fails
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Reporter: nbruin | Owner: craigcitro
Type: defect | Status: needs_work
Priority: major | Milestone: sage-5.0
Component: modular forms | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Changes (by davidloeffler):
* status: needs_review => needs_work
Comment:
This is a nasty one: the failure seems to be non-deterministic! I ran
{{{ModularSymbols(N).cuspidal_submodule().decomposition()}}} in a loop
from N=1 onwards, and it failed at {{{N = 195}}}. I tried {{{N = 195}}}
again and it worked. I've had other phantom crashes for other values of N.
So this is a genuine bug, and I was too hasty in nominating it to be
closed. Sadly I can't set this back to "new", although that would be the
correct status for it.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10941#comment:4>
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