Segfault happened at: 0x7f42d96c5aa7 <kill+7>:	cmp    $0xfffffffffffff001,%rax
PC (0x7f42d96c5aa7) ok
source "$0xfffffffffffff001" ok
destination "%rax" ok
Stack memory exhausted (SP below stack segment)
SP (0x7ffed49bf8a8) ok
Reason could not be automatically determined.