numerical solve -> crash

[martin@…]

Version 3-1-1 Feb 2010, accessed on a UNIX server.

Trying to solve a system of five polynomial equations in four variables. Coefficients are given to 40 digits of accuracy. A dozen or two similar computations have completed successfully. But this one caused singular to crash.

ideal I= A1,A2,B1,B2,s1;

redefining I

ideal SI = std(I);

redefining SI

dim(SI);

0

vdim(SI);

40

LIB "solve.lib";

loaded /usr/local/Singular/3-1-1/LIB/solve.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/triang.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/elim.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/ring.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/primdec.lib (12508,2010-02-03) loaded /usr/local/Singular/3-1-1/LIB/absfact.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/matrix.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/nctools.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/random.lib (12231,2009-11-02) loaded /usr/local/Singular/3-1-1/LIB/poly.lib (12443,2010-01-19) loaded /usr/local/Singular/3-1-1/LIB/inout.lib (12541,2010-02-09) loaded /usr/local/Singular/3-1-1/LIB/general.lib (12231,2009-11-02)

. setring R;

def T=solve(SI,10,1,"nodisplay");

Singular : signal 11 (v: 3114/2010071616): current line:>> ideal H = fglm(dphilb,G);<< Segment fault/Bus error occurred at 6ac6970 because of 10283 (r:1472319397) please inform the authors trying to restart...

? var number 0 out of range 1..4 ? error occurred in or before solve.lib::mutrisolve line 1331: sp = splittolist(splitsqrfree(T[1],var(d))); ? leaving solve.lib::mutrisolve skipping text from ; error at token ) ? leaving solve.lib::solve

Auf Wiedersehen.

[hannes]

Please report the complete example (including ring definition and values of A1,A2,B1,B2,s1) -otherwise we cannot reproduce what is happening.