#0  0x00007ff4d13da6b2 in _IO_vfprintf_internal (s=0x7ff4d227a480, format=0x5fe82a "\t%s\n", ap=0x7ff4d227ac18) at vfprintf.c:246
        thousands_sep = 0x0
        grouping = <optimized out>
        done = <optimized out>
        f = <optimized out>
        lead_str_end = <optimized out>
        end_of_spec = <optimized out>
        work_buffer = <error reading variable work_buffer (Cannot access memory at address 0x7ff4d2277f60)>
        workstart = 0x0
        workend = <optimized out>
        ap_save = {{gp_offset = 0, fp_offset = 0, overflow_arg_area = 0x0, reg_save_area = 0x0}}
        nspecs_done = <optimized out>
        save_errno = <optimized out>
        readonly_format = <optimized out>
        jump_table = "\001\000\000\004\000\016\000\006\000\000\a\002\000\003\t\000\005\b\b\b\b\b\b\b\b\b\000\000\000\000\000\000\000\032\000\031\000\023\023\023\000\035\000\000\f\000\000\000\000\000\000\025\000\000\000\000\022\000\r\000\000\000\000\000\000\032\000\024\017\023\023\023\n\017\034\000\v\030\027\021\026\f\000\025\033\020\000\000\022\000\r"
        __PRETTY_FUNCTION__ = "_IO_vfprintf_internal"
#1  0x00007ff4d13df654 in buffered_vfprintf (s=0x7ff4d1748180, format=<optimized out>, args=<optimized out>) at vfprintf.c:2261
        buf = '\000' <repeats 7816 times>, "~\316@\321\364\177\000\000\200\251'\322\364\177\000\000p\251'\322\364\177\000\000\230\252'\322\364\177\000\000m\267P\321\364\177\000\000\v\000\000\000\000\000\000\000O\301=\321\364\177\000\000p\267P\321\364\177", '\000' <repeats 18 times>, "\001", '\000' <repeats 71 times>, " ", '\000' <repeats 15 times>, "\001\000\000\000\000\000\000\000\370\377\377\377\377\377\377\377", '\000' <repeats 56 times>"\213, \314\026@\000\000\000\000\020\000\000\000\001\000\000\000\001\000\000\000\000\000\000\000\377\377\377\377\377\377\377\377\000\000\000\000\000\000\000\000o\267P\321\364\177\000\000x\000\000\000\364\177\000\000H\250'\322\364\177\000\000\342\350=\321\364\177\000\000\000\000\000\000\000\000\000\000r\225\a\322\364\177\000\000n\267P\321\364\177\000\000\002", '\000' <repeats 38 times>
        helper = {_f = {file = {_flags = -72515580, _IO_read_ptr = 0x0, _IO_read_end = 0x0, _IO_read_base = 0x0, _IO_write_base = 0x7ff4d2278480 "", _IO_write_ptr = 0x7ff4d2278480 "", _IO_write_end = 0x7ff4d227a480 "\004\200\255\373\002", _IO_buf_base = 0x0, _IO_buf_end = 0x0, _IO_save_base = 0x0, _IO_backup_base = 0x0, _IO_save_end = 0x0, _markers = 0x0, _chain = 0x0, _fileno = 0, _flags2 = 4, _old_offset = 0, _cur_column = 0, _vtable_offset = 0 '\000', _shortbuf = "", _lock = 0x0, _offset = 0, _codecvt = 0x0, _wide_data = 0x0, _freeres_list = 0x0, _freeres_buf = 0x0, _freeres_size = 0, _mode = -1, _unused2 = '\000' <repeats 19 times>}, vtable = 0x7ff4d1745ba0}, _put_stream = 0x7ff4d1748180, lock = {lock = 0, cnt = 0, owner = 0x0}}
        hp = 0x7ff4d227a480
        result = <optimized out>
        to_flush = <optimized out>
#2  0x00007ff4d13da87e in _IO_vfprintf_internal (s=0x7ff4d1748180, format=0x5fe82a "\t%s\n", ap=0x7ff4d227ac18) at vfprintf.c:1307
        thousands_sep = 0x0
        grouping = <optimized out>
        done = <optimized out>
        f = <optimized out>
        lead_str_end = <optimized out>
        end_of_spec = <optimized out>
        work_buffer = '\000' <repeats 24 times>, "\001", '\000' <repeats 15 times>, "`\250'\322\364\177", '\000' <repeats 58 times>"\340, \251'\322\364\177", '\000' <repeats 90 times>, ">m\234\272\364\177", '\000' <repeats 26 times>, "\001q\234\272\364\177\000\000\000\000\000\000\000\000\000@", '\000' <repeats 39 times>, "\001", '\000' <repeats 44 times>, "7ff44016cc8b", '\000' <repeats 32 times>, "X\000\000\000\000\000\000\000\020\000\000\000\060\000\000\000p\253'\322\364\177\000\000\260\252'\322\364\177\000\000@\251'\322\364\177\000\000\266\210\234\272\364\177\000\000\360\372K\321\364\177\000\000\000\000\000\000\000\000\000\000\020\252'\322\364\177\000\000P\273'\322\364\177\000\000\000\000\000\000\364\177\000\000\000\220Y\270\364\177\000\000\020\360{\002\000\000\000\000@\220Y\270\364\177\000\000\a\000'\322\364\177\000\000"...
        workstart = 0x0
        workend = <optimized out>
        ap_save = {{gp_offset = 3525923528, fp_offset = 32756, overflow_arg_area = 0x7ff4d207b523, reg_save_area = 0x0}}
        nspecs_done = <optimized out>
        save_errno = 2
        readonly_format = 0
        jump_table = "\001\000\000\004\000\016\000\006\000\000\a\002\000\003\t\000\005\b\b\b\b\b\b\b\b\b\000\000\000\000\000\000\000\032\000\031\000\023\023\023\000\035\000\000\f\000\000\000\000\000\000\025\000\000\000\000\022\000\r\000\000\000\000\000\000\032\000\024\017\023\023\023\n\017\034\000\v\030\027\021\026\f\000\025\033\020\000\000\022\000\r"
        __PRETTY_FUNCTION__ = "_IO_vfprintf_internal"
#3  0x00007ff4d1498b5b in ___fprintf_chk (fp=0x7ff4d1748180, flag=1, format=<optimized out>) at fprintf_chk.c:37
        _IO_acquire_lock_file = 0x7ff4d1748180
        ap = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7ff4d227ad00, reg_save_area = 0x7ff4d227ac30}}
        done = <optimized out>
#4  0x0000000000491671 in fprintf (__fmt=0x5fe82a "\t%s\n", __stream=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/stdio2.h:98
No locals.
#5  mono_handle_native_sigsegv (signal=<optimized out>, ctx=<optimized out>) at mini-exceptions.c:2162
        array = {0x49163a, 0x4e0ccf, 0x41bbf7, 0x7ff4d175dcb0, 0x7ff4cd501615, 0x4016cc8b, 0x0 <repeats 250 times>}
        i = <optimized out>
        signal_str = 0x5fe7f6 "SIGSEGV"
        names = 0x7ff4c8009360
        size = 6
        sa = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0}
        jit_tls = <optimized out>
#6  0x00000000004e0ccf in mono_arch_handle_altstack_exception (sigctx=0x7ff4d227bac0, fault_addr=<optimized out>, stack_ovf=0) at exceptions-amd64.c:953
        exc = <optimized out>
        ctx = 0x7ff4d227bac0
        ji = 0x0
        sp = <optimized out>
        frame_size = <optimized out>
#7  0x000000000041bbf7 in mono_sigsegv_signal_handler (_dummy=11, info=0x7ff4d227bbf0, context=0x7ff4d227bac0) at mini.c:5909
        ji = 0x0
        jit_tls = 0x7ff4c8000970
        fault_addr = <optimized out>
        ctx = 0x7ff4d227bac0
#8  <signal handler called>
No symbol table info available.
#9  0x00007ff4cd501615 in g_type_name (type=<optimized out>) at /build/buildd/glib2.0-2.31.22/./gobject/gtype.c:3301
        node = 0xaaaaaaaaaaaaaaa8
#10 0x000000004016cc8b in ?? ()
No symbol table info available.
#11 0x00007ff4c8000c20 in ?? ()
No symbol table info available.
#12 0x00007ff4c1487e00 in ?? ()
No symbol table info available.
#13 0x000000000000000f in ?? ()
No symbol table info available.
#14 0x00007ff4d2216540 in ?? ()
No symbol table info available.
#15 0x00007ff4ce61ea80 in ?? ()
No symbol table info available.
#16 0x00007ff4ce916b00 in ?? ()
No symbol table info available.
#17 0x00007ff4ce916930 in ?? ()
No symbol table info available.
#18 0x00007ff4cf481cc0 in ?? ()
No symbol table info available.
#19 0x0000000000000000 in ?? ()
No symbol table info available.