Program terminated with signal 11, Segmentation fault.
#0  0x00000038f3a41bf5 in __correctly_grouped_prefixwc () from /lib64/libc.so.6
(gdb) bt
#0  0x00000038f3a41bf5 in __correctly_grouped_prefixwc () from /lib64/libc.so.6
#1  0x0000000000000000 in ?? ()
(gdb) info r
rax            0x1ac1b108       448901384
rbx            0x2add423b4ff0   47129787322352
rcx            0x2add48128640   47129885312576
rdx            0x0      0
rsi            0x1      1
rdi            0x2add48000020   47129884098592
rbp            0x2add3f1aef50   0x2add3f1aef50
rsp            0x2add423b4ff0   0x2add423b4ff0
r8             0x2      2
r9             0x2      2
r10            0x0      0
r11            0x0      0
r12            0x0      0
r13            0x3      3
r14            0x1000   4096
r15            0x2add3f1b0000   47129734873088
rip            0x38f3a41bf5     0x38f3a41bf5 <__correctly_grouped_prefixwc+165>
eflags         0x10246  [ PF ZF IF RF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0
fctrl          0x37f    895
fstat          0x0      0
ftag           0xffff   65535
fiseg          0x0      0
fioff          0xc54f06 12930822
foseg          0x2add   10973
fooff          0x423b3f00       1111179008
fop            0x0      0
mxcsr          0x1fa1   [ IE PE IM DM ZM OM UM PM ]