#13314: segmentation fault with roots over ComplexField
----------------------------+-----------------------------------------------
Reporter: zimmerma | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-5.3
Component: calculus | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
----------------------------+-----------------------------------------------
Comment (by zimmerma):
I tried to trace the error down to the Pari library. In file
{{{rootpol.c}}}, function
{{{roots_aux}}}, the segmentation fault happens in the call to
{{{roots_com}}} with
{{{l=4}}} and {{{bit_accuracy(l)=128}}} where {{{p}}} is (as printed by
the Pari {{{output}}}
function):
{{{
(1.00000000000000000000000000000000000000+0.E-38*I)*z^84+(0.E-38+0.E-38*I)*z^83+(0.E-38+0.E-38*I)*z^82+(0.E-38+0.E-38*I)*z^81+(-1.31262215974857454625635000411421060562+0.E-38*I)*z^80+(0.E-38+0.E-38*I)*z^79+(0.E-38+0.E-38*I)*z^78+(0.E-38+0.E-38*I)*z^77+(0.82046519968571818282043750514276325703+0.E-38*I)*z^76+(0.E-38+0.E-38*I)*z^75+(0.E-38+0.E-38*I)*z^74+(0.E-38+0.E-38*I)*z^73+(-0.324797696688395171049634768678515683860+0.E-38*I)*z^72+(0.E-38+0.E-38*I)*z^71+(0.E-38+0.E-38*I)*z^70+(0.E-38+0.E-38*I)*z^69+(0.091357852078460689143613038254443381448+0.E-38*I)*z^68+(0.E-38+0.E-38*I)*z^67+(0.E-38+0.E-38*I)*z^66+(0.E-38+0.E-38*I)*z^65+(-0.0194153497922034252412722132863365231970+0.E-38*I)*z^64+(0.E-38+0.E-38*I)*z^63+(0.E-38+0.E-38*I)*z^62+(0.E-38+0.E-38*I)*z^61+(0.00323619266962232567325444265726730463939+0.E-38*I)*z^60+(0.E-38+0.E-38*I)*z^59+(0.E-38+0.E-38*I)*z^58+(0.E-38+0.E-38*I)*z^57+(-0.000433458978644296491914756665198016349904+0.E-38*I)*z^56+(0.E-38+0.E-38*I)*z^55+(0.E-38+0.E-38*I)*z^54+(0.E-38+0.E-38*I)*z^53+(4.74139855195190713770398956497520437380E-5+0.E-38*I)*z^52+(0.E-38+0.E-38*I)*z^51+(0.E-38+0.E-38*I)*z^50+(0.E-38+0.E-38*I)*z^49+(-4.2808273489419220927898795386466919422E-6+0.E-38*I)*z^48+(0.E-38+0.E-38*I)*z^47+(0.E-38+0.E-38*I)*z^46+(0.E-38+0.E-38*I)*z^45+(3.21091908719544601469774304001807661846E-7+0.E-38*I)*z^44+(0.E-38+0.E-38*I)*z^43+(0.E-38+0.E-38*I)*z^42+(0.E-38+0.E-38*I)*z^41+(-2.00701103917778153737692276628195892519E-8+0.E-38*I)*z^40+(0.E-38+0.E-38*I)*z^39+(0.E-38+0.E-38*I)*z^38+(0.E-38+0.E-38*I)*z^37+(1.04541544211375485185820631903782289784E-9+0.E-38*I)*z^36+(0.E-38+0.E-38*I)*z^35+(0.E-38+0.E-38*I)*z^34+(0.E-38+0.E-38*I)*z^33+(-4.52385274610660402740066744025679312462E-11+0.E-38*I)*z^32+(0.E-38+0.E-38*I)*z^31+(0.E-38+0.E-38*I)*z^30+(0.E-38+0.E-38*I)*z^29+(1.61581188955695039273058373628568909992E-12+0.E-38*I)*z^28+(0.E-38+0.E-38*I)*z^27+(0.E-38+0.E-38*I)*z^26+(0.E-38+0.E-38*I)*z^25+(-4.71322274522116476238604321139902691134E-14+0.E-38*I)*z^24+(0.E-38+0.E-38*I)*z^23+(0.E-38+0.E-38*I)*z^22+(0.E-38+0.E-38*I)*z^21+(1.10476425294559942483778527936674858155E-15+0.E-38*I)*z^20+(0.E-38+0.E-38*I)*z^19+(0.E-38+0.E-38*I)*z^18+(0.E-38+0.E-38*I)*z^17+(-2.03100537680144918840320161959898939477E-17+0.E-38*I)*z^16+(0.E-38+0.E-38*I)*z^15+(0.E-38+0.E-38*I)*z^14+(0.E-38+0.E-38*I)*z^13+(2.82110293355386359309869812795381913797E-19+0.E-38*I)*z^12+(0.E-38+0.E-38*I)*z^11+(0.E-38+0.E-38*I)*z^10+(0.E-38+0.E-38*I)*z^9+(-2.78424184144204274350181426076550186938E-21+0.E-38*I)*z^8+(0.E-38+0.E-38*I)*z^7+(0.E-38+0.E-38*I)*z^6+(0.E-38+0.E-38*I)*z^5+(1.74031282798232506192330105295904480920E-23+0.E-38*I)*z^4+(0.E-38+0.E-38*I)*z^3+(0.E-38+0.E-38*I)*z^2+(0.E-38+0.E-38*I)*z+(-5.1799836460219446701130005742251516370E-26+0.E-38*I)
}}}
Paul
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13314#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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