Hi,
Migration from beta 7 to beta 8 (Ubuntu 20.10):
-compilation: ok.
- make ptestlong:
1 error:
sage -t --long --warn-long 89.4 --random-seed=0
src/sage/interfaces/singular.py
Killed due to segmentation fault
**********************************************************************
Tests run before process (pid=134886) failed:
sage: R1 = singular.ring(0, '(x,y)', 'dp') ## line 65 ##
sage: R1 ## line 66 ##
polynomial ring, over a field, global ordering
// coefficients: QQ
// number of vars : 2
// block 1 : ordering dp
// : names x y
// block 2 : ordering C
sage: f = singular('9x16 - 18x13y2 - 9x12y3 + 9x10y4 - 18x11y2 + 36x8y4
+ 18x7y5 - 18x5y6 + 9x6y4 - 18x3y6 - 9x2y7 + 9y8') ## line 73 ##
sage: f ## line 74 ##
9*x^16-18*x^13*y^2-9*x^12*y^3+9*x^10*y^4-18*x^11*y^2+36*x^8*y^4+18*x^7*y^5-18*x^5*y^6+9*x^6*y^4-18*x^3*y^6-9*x^2*y^7+9*y^8
sage: f.parent() ## line 76 ##
Singular
sage: F = f.factorize(); F ## line 81 ##
[1]:
_[1]=9
_[2]=x^6-2*x^3*y^2-x^2*y^3+y^4
_[3]=-x^5+y^2
[2]:
1,1,2
sage: F[1] ## line 91 ##
9,
x^6-2*x^3*y^2-x^2*y^3+y^4,
-x^5+y^2
sage: F[1][2] ## line 95 ##
x^6-2*x^3*y^2-x^2*y^3+y^4
sage: g = f.sage(); g ## line 103 #
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