GP/PARI CALCULATOR Version 2.8.0 (development 18700-3cadb51)

          ix86 running solaris (ix86/GMP-4.3.2 kernel) 32-bit version

                 compiled: Mar 18 2016, gcc version 4.8.2 (GCC)

                           threading engine: pthread

                (readline v5.2 disabled, extended help enabled)

                     Copyright (C) 2000-2016 The PARI Group

PARI/GP is free software, covered by the GNU General Public License, and comes

WITHOUT ANY WARRANTY WHATSOEVER.

Type ? for help, \q to quit.

Type ?15 for how to get moral (and possibly technical) support.

parisize = 4000000, primelimit = 500000

   echo = 1 (on)

? bnfisprincipal(bnfinit(x^2-x-57),[5,1;0,1])

  ***   at top-level: bnfisprincipal(bnfin

  ***                 ^--------------------

  *** bnfisprincipal: bug in PARI/GP (Segmentation Fault), please report.