[sage-devel] Re: During a libgap evaluation: SystemError: calling remove_from_pari_stack() inside sig_on()

2019-02-27 Thread Simon Brandhorst 
This is now 
#27374 

On Wednesday, February 27, 2019 at 9:53:35 AM UTC+1, Simon Brandhorst wrote:
>
> -
> SystemError Traceback (most recent call last)
>  in ()
> > 1 classify_ord_pe(L,Integer(2),Integer(2),"results/order4.txt","w")
>
> /home/simon/.sage/temp/k3/8598/K3_aut_classification.sageqIg9CK.py in 
> classify_ord_pe(L, p, e, file_name, rw)
> 252 print(" ")
> 253 cofix = cofixed[k].twist(-_sage_const_1 )
> --> 254 for Aa in k3_prime_power(fix.genus(), p, e):
> 255 A, a, Oa = Aa
> 256 actsg = MaximalK3surfaceAut(A, cofix, a, Oa)
>
> /home/simon/.sage/temp/k3/8598/prime_power.sage5OzLUx.py in 
> k3_prime_power(genus, prime, e)
> 138 signatures += [[ranks_E[k]]*(weights[k]//_sage_const_2 
> ) for k in range(_sage_const_1 ,n)]
> 139 signatures[-_sage_const_1 ][_sage_const_0 ] -= 
> _sage_const_1
> --> 140 for act in 
> prime_power_actions(genus,prime,ranks,signatures):
> 141 yield act
> 142 
>
> /home/simon/.sage/temp/k3/8598/prime_power.sage5OzLUx.py in 
> prime_power_actions(genus, p, ranks, signatures)
> 276 # recurse
> 277 # print(R)
> --> 278 for N in prime_power_actions(R, p, 
> ranks[:-_sage_const_1 ], R_signatures):
> 279 N, fN, GN = N
> 280 ext = extensions(M, fM, N, fN, GM, GN, 
> glue_order, p)
>
> /home/simon/.sage/temp/k3/8598/prime_power.sage5OzLUx.py in 
> prime_power_actions(genus, p, ranks, signatures)
> 240 if G.is_even() and not M.is_even():
> 241 continue
> --> 242 GM = Oq_equiv(M, fM, p**e)
> 243 DM = M.discriminant_group()
> 244 M_max_glue_group = (M.span((fM**(p**(e-_sage_const_1 
> )) - fM**_sage_const_0 ).inverse())
>
> /home/simon/.sage/temp/k3/8598/prime_power.sage5OzLUx.py in Oq_equiv(M, 
> fM, order)
> 514 """
> 515 if order==_sage_const_1  or order==_sage_const_2 :
> --> 516 return M.image_in_Oq()
> 517 elif prod(M.signature_pair()) == _sage_const_0 :
> 518 #
>
> This looks like a bug to me but I am not enough of an expert to decide.
> /home/simon/sage/local/lib/python2.7/site-packages/sage/modules/free_quadratic_module_integer_symmetric.pyc
>  
> in image_in_Oq(self)
>1443 generated by 5 elements
>1444 """
> -> 1445 Oq = self.discriminant_group().orthogonal_group()
>1446 sig = self.signature_pair()
>1447 if sig[0]*sig[1]==0 or self.rank()==2:
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/misc/cachefunc.pyx 
> in sage.misc.cachefunc.CachedMethodCaller.__call__ 
> (build/cythonized/sage/misc/cachefunc.c:10232)()
>1948 return cache[k]
>1949 except KeyError:
> -> 1950 w = self._instance_call(*args, **kwds)
>1951 cache[k] = w
>1952 return w
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/misc/cachefunc.pyx 
> in sage.misc.cachefunc.CachedMethodCaller._instance_call 
> (build/cythonized/sage/misc/cachefunc.c:9717)()
>1824 True
>1825 """
> -> 1826 return self.f(self._instance, *args, **kwds)
>1827 
>1828 cdef fix_args_kwds(self, tuple args, dict kwds):
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/modules/torsion_quadratic_module.pyc
>  
> in orthogonal_group(self, gens, check)
>1196 gens = [matrix(g) for g in _isom_fqf(self)]
>1197 ambient = AbelianGroupGap(self.invariants()).aut()
> -> 1198 gens = [ambient(g) for g in gens]
>1199 gens = tuple(g for g in gens if g != ambient.one())
>1200 return FqfOrthogonalGroup(ambient, gens, self, check=check)
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/structure/parent.pyx 
> in sage.structure.parent.Parent.__call__ 
> (build/cythonized/sage/structure/parent.c:9171)()
> 897 if mor is not None:
> 898 if no_extra_args:
> --> 899 return mor._call_(x)
> 900 else:
> 901 return mor._call_with_args(x, args, kwds)
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/structure/coerce_maps.pyx
>  
> in sage.structure.coerce_maps.DefaultConvertMap_unique._call_ 
> (build/cythonized/sage/structure/coerce_maps.c:4547)()
> 160 print(type(C), C)
> 161 print(type(C._element_constructor), 
> C._element_constructor)
> --> 162 raise
> 163 
> 164 cpdef Element _call_with_args(self, x, args=(), kwds={}):
>
> /home/simon/sage/local/lib/python2.7/site-packages/sage/structure/coerce_maps.pyx
>  
> in

Re: [sage-devel] Re: During a libgap evaluation: SystemError: calling remove_from_pari_stack() inside sig_on()

2019-02-27 Thread Jeroen Demeyer 

On 2019-02-27 10:31, Simon Brandhorst wrote:

Okay. But I cannot reproduce the error consistently. Post anyways?


Yes. The traceback is clear enough.

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[sage-devel] Re: During a libgap evaluation: SystemError: calling remove_from_pari_stack() inside sig_on()

2019-02-27 Thread Simon Brandhorst 
Okay. But I cannot reproduce the error consistently. Post anyways?

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