#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {16387, 23, 140623897452360, 128, 140623897397840, 1, 140623897398096, 193, 0, 61783913144387, 140623738901904, 65535, 6860733170392760320, 13366, 0, 0}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007fe590a44535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 0, 0, 0, 0, 0, 0, 0, 140623953324326, 94269997081600, 140623953318264, 0, 17651246113804436480, 0, 140623897432080, 94270026373040}}, sa_flags = -1921719672, sa_restorer = 0xffffffffffffffff}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fe590c645ef in isc_assertion_failed () from /usr/lib/x86_64-linux-gnu/libisc.so.169
No symbol table info available.
#3  0x00007fe590c9245a in isc.timer_create () from /usr/lib/x86_64-linux-gnu/libisc.so.169
No symbol table info available.
#4  0x000055bcf1aef75a in ?? ()
No symbol table info available.
#5  0x000055bcf1af6e22 in ?? ()
No symbol table info available.
#6  0x000055bcf1af76c5 in ?? ()
No symbol table info available.
#7  0x00007fe590c8c439 in ?? () from /usr/lib/x86_64-linux-gnu/libisc.so.169
No symbol table info available.
#8  0x00007fe590c14164 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140623897401088, -7591998463925068293, 140732844622238, 140732844622239, 140732844622384, 140623897399168, 7595557682425060859, 7595580383078342139}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#9  0x00007fe590b3cdef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.