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Bug #1639

RealRoots: crashes after interrupting

Added by John Abbott over 2 years ago. Updated over 2 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
bug
Target version:
CoCoA-5.4.2
Start date:
07 Dec 2021
Due date:
% Done:

0%

Estimated time:
Spent time:
0.25 h

Description

Naturally I discovered this while giving a demo to my students...

/**/ use QQ[x,y,z];
/**/ f := product([x-k | k in 0..1000]);
/**/ RR:=RealRoots(f);
  C-c C-c***ERROR***  UNCAUGHT UNKNOWN EXCEPTION

Process cocoa5 exited abnormally with code 1

History

#1 Updated by John Abbott over 2 years ago

I still get a crash with product([x-k | k in 0..600]) and interrupting after about 20s.
Trying with 500 instead of 600 did not trigger a crash.

Very odd! Could it be some sort of stack-overflow?

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