In case someone wants to follow up, the crash is due to an unsurprising:
Flint exception (Impossible inverse):
Cannot invert modulo 13*13
so perhaps a bit more extensive error catching/processing needs to happen
in the flint wrapper.
On Friday 5 January 2024 at 23:03:48 UTC-8 Georgi Guninski wrote:
> def testcrtcrash1():
> """
> crash with coredump in `crt` for polynomials over finite rings
> author: Georgi Guninski
> """
> A=13
> Kx.<x>=Integers(A**2)[]
> mods=[x^2+A,x^4+A]
> resi=[x,x^2]
> g=crt(resi,mods)
> return g
>
>
> Aborted (core dumped)
>
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