. Thread 1 (process 6621): #0 0x00007f1063661b10 in ?? () #1 0x00007f1063675b15 in ?? () #2 0x00007f106364fec0 in ?? () #3 0x0000000001f12a70 in ?? () #4 0x0200000000000019 in ?? () #5 0x0000000000000000 in ?? ()