Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7795590 in GooHash::hash(GooString*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
(gdb) bt
#0  0x00007ffff7795590 in GooHash::hash(GooString*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#1  0x00007ffff77955e2 in GooHash::find(GooString*, int*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#2  0x00007ffff779577e in GooHash::lookup(GooString*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#3  0x00007ffff7747bb4 in GlobalParams::getResidentUnicodeMap(GooString*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#4  0x00007ffff77492c3 in GlobalParams::getUnicodeMap2(GooString*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#5  0x00007ffff778c54a in TextPage::coalesce(bool, bool) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#6  0x00007ffff779132a in TextOutputDev::endPage() () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#7  0x00007ffff77242b7 in Gfx::~Gfx() () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#8  0x00007ffff7760cb2 in Page::displaySlice(OutputDev*, double, double, int, bool, bool, int, int, int, int, bool, Catalog*, bool (*)(void*), void*, bool (*)(Annot*, void*), void*) () from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#9  0x00007ffff7760d4b in Page::display(OutputDev*, double, double, int, bool, bool, bool, Catalog*, bool (*)(void*), void*, bool (*)(Annot*, void*), void*) ()
   from /usr/lib/x86_64-linux-gnu/libpoppler.so.19
#10 0x0000000000415432 in ?? ()
#11 0x0000000000418631 in ?? ()
#12 0x000000000041b15d in ?? ()
#13 0x00000000004130f5 in ?? ()
#14 0x0000000000420332 in ?? ()
#15 0x00007ffff7407140 in XtCallCallbackList () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#16 0x00007ffff7aed792 in ?? () from /usr/lib/libXm.so.2
#17 0x00007ffff7407140 in XtCallCallbackList () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#18 0x00007ffff7b1aba9 in ?? () from /usr/lib/libXm.so.2
#19 0x00007ffff7acc462 in ?? () from /usr/lib/libXm.so.2
#20 0x00007ffff7b00514 in ?? () from /usr/lib/libXm.so.2
#21 0x00007ffff7b02b25 in ?? () from /usr/lib/libXm.so.2
#22 0x00007ffff743c28d in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#23 0x00007ffff743c6aa in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#24 0x00007ffff743d3e7 in _XtTranslateEvent () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#25 0x00007ffff74152a3 in XtDispatchEventToWidget () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#26 0x00007ffff74159e6 in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#27 0x00007ffff7415aa4 in XtDispatchEvent () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#28 0x00007ffff7415f4b in XtAppMainLoop () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#29 0x000000000040b322 in ?? ()
#30 0x00007ffff650e76d in __libc_start_main (main=0x40aef0, argc=1, ubp_av=0x7fffffffe1a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7fffffffe198) at libc-start.c:226
#31 0x000000000040b805 in ?? ()
#32 0x00007fffffffe198 in ?? ()
#33 0x000000000000001c in ?? ()
#34 0x0000000000000001 in ?? ()
#35 0x00007fffffffe456 in ?? ()
#36 0x0000000000000000 in ?? ()