ASSERT(m) in 'mon-util.cc' at line 2529 failed.

Version: Dungeon Crawl Stone Soup 0.34-a0-863-g0d9fc5886c
Platform: unix
Bits: 64
Game mode: normal
Tiles: online

Seed: 13041334240232139257, deterministic pregen: 1
Command line: /usr/games/crawl-git-0d9fc5886c -name nobo -rc /dgldir/rcfiles/crawl-git/nobo.rc -macro /dgldir/rcfiles/crawl-git/nobo.macro -morgue /dgldir/morgue/nobo/ -webtiles-socket /crawl-master/webserver/sockets/nobo:2025-09-29.18:38:57.sock -await-connection

RC options:
restart_after_game = false


Crash caused by signal #6: Aborted

Obtained 26 stack frames.
/usr/games/crawl-git-0d9fc5886c(_Z17write_stack_traceP8_IO_FILE+0x3e) [0x5e7e37c6319e]: write_stack_trace(_IO_FILE*)
/usr/games/crawl-git-0d9fc5886c(_Z13do_crash_dumpv+0x43a) [0x5e7e37c7127a]: do_crash_dump()
/usr/games/crawl-git-0d9fc5886c(_Z20crash_signal_handleri+0x1fa) [0x5e7e37c6367a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x42910) [0x71a927a42910]: 
/lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x11b) [0x71a927a9999b]: 
/lib/x86_64-linux-gnu/libc.so.6(raise+0x16) [0x71a927a42866]: 
/usr/games/crawl-git-0d9fc5886c(+0x4ec64d) [0x5e7e37c7064d]: 
/usr/games/crawl-git-0d9fc5886c(_Z12AssertFailedPKcS0_iS0_z+0x1c7) [0x5e7e37c70b57]: AssertFailed(char const*, char const*, int, char const*, ...)
/usr/games/crawl-git-0d9fc5886c(+0x924fac) [0x5e7e380a8fac]: 
/usr/games/crawl-git-0d9fc5886c(_Z17mons_threat_levelRK7monsterb+0xf2) [0x5e7e380ac102]: mons_threat_level(monster const&, bool)
/usr/games/crawl-git-0d9fc5886c(_ZN12monster_infoC2EPK7monsteri+0x1c1) [0x5e7e3806bac1]: monster_info::monster_info(monster const*, int)
/usr/games/crawl-git-0d9fc5886c(+0x7917e6) [0x5e7e37f157e6]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xfcfd) [0x71a92845ecfd]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0x1a2ba) [0x71a9284692ba]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xe71d) [0x71a92845d71d]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xae23) [0x71a928459e23]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(+0xd7b0) [0x71a92845c7b0]: 
/lib/x86_64-linux-gnu/liblua5.1.so.0(lua_pcall+0x5c) [0x71a92845c8dc]: 
/usr/games/crawl-git-0d9fc5886c(_ZN4CLua6callfnEPKcii+0xca) [0x5e7e37c4a56a]: CLua::callfn(char const*, int, int)
/usr/games/crawl-git-0d9fc5886c(_Z15process_command12command_typeS_+0x208) [0x5e7e38419698]: process_command(command_type, command_type)
/usr/games/crawl-git-0d9fc5886c(+0xc9384a) [0x5e7e3841784a]: 
/usr/games/crawl-git-0d9fc5886c(+0xc943d5) [0x5e7e384183d5]: 
/usr/games/crawl-git-0d9fc5886c(main+0x1f7) [0x5e7e37b97c77]: 
/lib/x86_64-linux-gnu/libc.so.6(+0x280d0) [0x71a927a280d0]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x89) [0x71a927a28189]: 
/usr/games/crawl-git-0d9fc5886c(_start+0x25) [0x5e7e37b98765]: 

Trying to run gdb.
GNU gdb (Ubuntu 14.0.50.20230907-0ubuntu1) 14.0.50.20230907-git
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x000071a927b0fbf7 in __GI___wait4 (pid=2494994, stat_loc=0x0, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30
#0  0x000071a927b0fbf7 in __GI___wait4 (pid=2494994, stat_loc=0x0, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30
        sc_ret = -512
        sc_ret = <optimized out>
#1  0x00005e7e37c6384c in call_gdb (file=0x71a927bff6c0 <_IO_2_1_stderr_>) at crash.cc:438
        gdb = <optimized out>
        attach_cmd = "attach 2494751\000\000\000\000\000"
#2  0x00005e7e37c71298 in do_crash_dump () at dbg-asrt.cc:673
        t = 1759171340
        dir = "/dgldir/morgue/nobo/"
        name = "/dgldir/morgue/nobo/crash-nobo-20250929-184220.txt", '\000' <repeats 129 times>
        signal_info = "Crash caused by signal #6: Aborted"
        cause_msg = "ASSERT(m) in 'mon-util.cc' at line 2529 failed."
        file = 0x71a927bff6c0 <_IO_2_1_stderr_>
#3  0x00005e7e37c6367a in crash_signal_handler (sig_num=6) at crash.cc:198
No locals.
#4  <signal handler called>
No locals.
#5  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {2529}}
        ret = <optimized out>
        pd = <optimized out>
        old_mask = <optimized out>
        ret = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
        resultvar = <optimized out>
        resultvar = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
        __futex = <optimized out>
        resultvar = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
        __futex = <optimized out>
        __private = <optimized out>
        __oldval = <optimized out>
#6  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
No locals.
#7  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
No locals.
#8  0x000071a927a42866 in __GI_raise (sig=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#9  0x00005e7e37c7064d in _BreakStrToDebugger (mesg=mesg@entry=0x7fff0eb68050 "ASSERT(m) in 'mon-util.cc' at line 2529 failed.", assert=true) at dbg-asrt.cc:799
No locals.
#10 0x00005e7e37c70b57 in AssertFailed (expr=expr@entry=0x5e7e38434d84 "m", file=file@entry=0x5e7e3844c42f "mon-util.cc", line=line@entry=2529, text=text@entry=0x0) at dbg-asrt.cc:837
        mesg = "ASSERT(m) in 'mon-util.cc' at line 2529 failed.\000 \222\266\016\377\177\000\000@\201\266\016\377\177\000\000`\201\266\016\377\177\000\000P\201\266\016\377\177\000\0000\201\266\016\377\177\000\000\310k@8~^\000\000\001\000/tmp/crawldx_a89dt.socket\000\000\000\000\000h\377\377\377\377\377\377\377\002\000\000\000\000\000\000\000@\201\266\016\377\177\000\000\363\207\252'\251q", '\000' <repeats 26 times>, "`a\2258~^\000\000 \222\266\016\377\177\000\000"...
        args = {{gp_offset = 2, fp_offset = 2, overflow_arg_area = 0x200000002, reg_save_area = 0x200000002}}
        fileName = <optimized out>
#11 0x00005e7e380a8fac in exp_value (mon=..., real=real@entry=false, legacy=legacy@entry=true) at mon-util.cc:2529
        m = 0x0
        x_val = 0
        mc = MONS_NO_MONSTER
        maxhp = 0
        zombified = <optimized out>
        avg_hp = <optimized out>
#12 0x00005e7e380ac102 in exp_value (legacy=true, real=false, mon=...) at mon-util.cc:2505
        x_val = <optimized out>
        mc = <optimized out>
        maxhp = <optimized out>
        zombified = <optimized out>
        avg_hp = <optimized out>
        m = <optimized out>
#13 mons_threat_level (mon=..., real=real@entry=false) at mon-util.cc:5026
        threat = @0x5e7e38a252c8: {<actor> = {_vptr.actor = 0x5e7e3879fe10 <vtable for monster+16>, type = MONS_NO_MONSTER, mid = 0, position = {x = 17, y = 23}, props = {<std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, CrawlStoreValue, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, CrawlStoreValue> > >> = std::map with 0 elements, <No data fields>}, shield_blocks = 0, triggered_spectral = false, constricted_by = 0, escape_attempts = 0, constricting = 0x0}, mname = "", hit_points = 0, max_hit_points = 0, exp = 0, speed = 0, speed_increment = 0, target = {x = 0, y = 0}, firing_pos = {x = 0, y = 0}, patrol_point = {x = 0, y = 0}, travel_target = MTRAV_NONE, travel_path = std::vector of length 0, capacity 0, inv = {mData = {27000 <repeats 12 times>}}, spells = std::vector of length 0, capacity 3, attitude = ATT_HOSTILE, behaviour = BEH_SLEEP, foe = 27000, ench_countdown = 0 '\000', enchantments = std::map with 0 elements, ench_cache = {_vptr.FixedBitVector = 0x5e7e3876e2d8 <vtable for FixedBitVector<185u>+16>, data = std::bitset}, flags = {<_enum_bitfield_exponent_base<-1, false>> = {<No data fields>}, flags = 0}, xp_tracking = XP_NON_VAULT, base_monster = MONS_NO_MONSTER, {number = 0, blob_size = 0, num_heads = 0, ballisto_activity = 0, spore_cooldown = 0, mangrove_pests = 0, prism_charge = 0, battlecharge = 0, move_spurt = 0, steps_remaining = 0, blazeheart_heat = 0, tentacle_connect = 0}, colour = -1, summoner = 0, foe_memory = 0, god = GOD_NO_GOD, ghost = std::unique_ptr<ghost_demon> = {get() = 0x0}, seen_context = SC_NONE, damage_friendly = 0, damage_total = 0, client_id = 0, static last_client_id = 315, went_unseen_this_turn = false, unseen_pos = {x = 0, y = 0}, hit_dice = 0}
        factor = 9.532824124368238e-130
        tension = <optimized out>
#14 0x00005e7e3806bac1 in monster_info::monster_info (this=0x7fff0eb68b50, m=0x5e7e38a252c8 <env+256008>, milev=0) at mon-info.cc:436
        need_name_desc = <optimized out>
        stab_bonus = <optimized out>
        name_flags = <optimized out>
        spellhd = -1314417566
        constr_typ = <optimized out>
        name_flags = <optimized out>
        need_name_desc = <optimized out>
        stab_bonus = <optimized out>
        spellhd = <optimized out>
        constr_typ = <optimized out>
        entry = <optimized out>
        __for_range = <optimized out>
        __for_begin = <optimized out>
        __for_end = <optimized out>
        entry = <optimized out>
        __for_range = <optimized out>
        __for_begin = <optimized out>
        __for_end = <optimized out>
        flag = <optimized out>
        ghost = <optimized out>
        i = <optimized out>
        atk_index = <optimized out>
        i = <optimized out>
        ok = <optimized out>
        constrictor = <optimized out>
        entry = <optimized out>
        __for_range = <optimized out>
        __for_begin = <optimized out>
        __for_end = <optimized out>
        constrictee = <optimized out>
        level = <optimized out>
#15 0x00005e7e37f157e6 in mi_get_monster_at (ls=