(../seg:10)     unstack
(../seg:10)     gvsv(main::_)
(../seg:10)     rcatline
(../seg:10)     defined
(../seg:10)     and
(../seg:10)     nextstate
(../seg:10)     match
(../seg:10)     and
(../seg:10)     enter
(../seg:10)     nextstate
(../seg:12)     gvsv(main::1)
(../seg:12)     gvsv(main::_)
(../seg:12)     sassign
(../seg:12)     leave
(../seg:10)     unstack
(../seg:10)     gvsv(main::_)
(../seg:10)     rcatline
(../seg:10)     defined
(../seg:10)     and
(../seg:10)     nextstate
(../seg:10)     match
(../seg:10)     and
(../seg:10)     enter
(../seg:10)     nextstate
(../seg:12)     gvsv(main::1)
(../seg:12)     gvsv(main::_)
(../seg:12)     sassign
(../seg:12)     leave
(../seg:10)     unstack
(../seg:10)     gvsv(main::_)
(../seg:10)     rcatline
(../seg:10)     defined
(../seg:10)     and
(../seg:10)     nextstate
(../seg:10)     match
(../seg:10)     and
(../seg:10)     enter
(../seg:10)     nextstate
(../seg:12)     gvsv(main::1)
(../seg:12)     gvsv(main::_)
(../seg:12)     sassign
(../seg:12)     leave
(../seg:10)     unstack
(../seg:10)     gvsv(main::_)
(../seg:10)     rcatline
(../seg:10)     defined
(../seg:10)     and
(../seg:10)     nextstate
(../seg:10)     match
(../seg:10)     and
(../seg:10)     enter
(../seg:10)     nextstate
(../seg:12)     gvsv(main::1)
(../seg:12)     gvsv(main::_)
(../seg:12)     sassign
(../seg:12)     leave
(../seg:10)     unstack
(../seg:10)     gvsv(main::_)
(../seg:10)     rcatline
Segmentation fault