Error: segmentation violation
   rax 0000000000000000, rbx 00000000013dc140, rcx ffffffffffffffff
   rdx 0000000000000965, rsp 00007fff46c204f8, rbp 00007fff46c20520
   rsi 000000000000000b, rdi 0000000000000965, r8  00007f0c317fa740
   r9  0000000000000000, r10 00007fff46c1ff60, r11 0000000000000202
   r12 00007fff46c20a20, r13 000000000238f520, r14 00000000013c5630
   r15 00007f0c20aff9b0
  --- traceback not available