Another user experienced a similar problem:
Did nothing on my side. I just received the crash notification.
reporter: libreport-2.2.2
backtrace_rating: 4
cmdline: /usr/bin/virtuoso-t +foreground +configfile /tmp/virtuoso_TT2129.ini +wait
crash_function: gpf_notice
executable: /usr/bin/virtuoso-t
kernel: 3.14.8-200.fc20.x86_64
package: virtuoso-opensource-6.1.6-5.fc20
reason: virtuoso-t killed by SIGSEGV
runlevel: N 5
type: CCpp
uid: 1000