I've letting the AI take over my (blue) tribe again (like in cfr. #1627767). This time an assertion failed, which seems to indicate some kind of prehistoric expedition. Blue has an expedition going on with a ship that was loaded a rather long time ago.
ComputerPlayer(1): initializing as type 2
ComputerPlayer(2): initializing as type 2
widelands: ../src/ai/defaultai.cc:3747: void DefaultAI::check_ship_in_expedition(Widelands::ShipObserver&, uint32_t): Controletest 'persistent_data->expedition_start_time > 0' faalt.
Thread 1 "widelands" received signal SIGABRT, Aborted.
[Switching to Thread 0xb47c4a40 (LWP 7179)]
0xb7fd9dad in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fd9dad in __kernel_vsyscall ()
#1 0xb75bac19 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#2 0xb75bc117 in __GI_abort () at abort.c:89
#3 0xb75b3bd7 in __assert_fail_base (fmt=0xb46143d3 "%s%s%s:%u: %s%sControletest '%s' faalt.\n%n",
assertion=0x8ec71d8 "persistent_data->expedition_start_time > 0", file=0x8ec666f "../src/ai/defaultai.cc", line=3747,
function=0x8ec81c0 <DefaultAI::check_ship_in_expedition(Widelands::ShipObserver&, unsigned int)::__PRETTY_FUNCTION__> "void DefaultAI::check_ship_in_expedition(Widelands::ShipObserver&, uint32_t)") at assert.c:92
#4 0xb75b3c5b in __GI___assert_fail (assertion=0x8ec71d8 "persistent_data->expedition_start_time > 0", file=0x8ec666f "../src/ai/defaultai.cc", line=3747,
function=0x8ec81c0 <DefaultAI::check_ship_in_expedition(Widelands::ShipObserver&, unsigned int)::__PRETTY_FUNCTION__> "void DefaultAI::check_ship_in_expedition(Widelands::ShipObserver&, uint32_t)") at assert.c:101
#5 0x08b8cffa in DefaultAI::check_ship_in_expedition (this=0xdecac68, so=..., gametime=90495463) at ../src/ai/defaultai.cc:3747
#6 0x08b8c87e in DefaultAI::check_ships (this=0xdecac68, gametime=90495463) at ../src/ai/defaultai.cc:3626
#7 0x08b7ed3d in DefaultAI::think (this=0xdecac68) at ../src/ai/defaultai.cc:407
#8 0x089d8dcc in NetHost::think (this=0xbfffe0a0) at ../src/network/nethost.cc:807
#9 0x088b487e in Widelands::Game::think (this=0xbfffbf20) at ../src/logic/game.cc:548
#10 0x08a97c7e in InteractiveBase::think (this=0xbadf1c8) at ../src/wui/interactive_base.cc:306
#11 0x08a0fc48 in UI::Panel::do_think (this=0xbadf1c8) at ../src/ui_basic/panel.cc:441
#12 0x08a0f631 in UI::Panel::do_run (this=0xbadf1c8) at ../src/ui_basic/panel.cc:183
#13 0x087d2007 in UI::Panel::run<UI::Panel::Returncodes> (this=0xbadf1c8) at ../src/ui_basic/panel.h:96
#14 0x088b45c6 in Widelands::Game::run (this=0xbfffbf20, loader_ui=0x9c86140, start_game_type=Widelands::Game::Loaded, script_to_run="", replay=false,
prefix_for_replays="nethost") at ../src/logic/game.cc:525
#15 0x089d85d5 in NetHost::run (this=0xbfffe0a0) at ../src/network/nethost.cc:749
#16 0x087cc81b in WLApplication::mainmenu_multiplayer (this=0x91b6570) at ../src/wlapplication.cc:1159
#17 0x087cbe55 in WLApplication::mainmenu (this=0x91b6570) at ../src/wlapplication.cc:997
#18 0x087c894b in WLApplication::run (this=0x91b6570) at ../src/wlapplication.cc:441
#19 0x087c710b in main (argc=1, argv=0xbffff324) at ../src/main.cc:49
(gdb)
Indeed - it is a corner case, AI finds a ship in expedition in initialization, but expedition start time is not set in persistent data.
Fix prepared...
I must say that switching AI<->Human on one slot is bit fragile due to persistent data....