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Thread 1 (process 4717):
#0  0x00007f8b4de8fbfa in ?? ()
No symbol table info available.
#1  0x0000000001d1c1e0 in ?? ()
No symbol table info available.
#2  0x000000014e216c83 in ?? ()
No symbol table info available.
#3  0x0000000001dcf5d0 in ?? ()
No symbol table info available.
#4  0x0000000001e2edf8 in ?? ()
No symbol table info available.
#5  0x0000000001eb0300 in ?? ()
No symbol table info available.
#6  0x0000000001d4eab0 in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.