#0  0x00007f66191a3445 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <optimized out>
        selftid = 11664
#1  0x00007f66191a6bab in __GI_abort () at abort.c:91
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x18, sa_sigaction = 0x18}, sa_mask = {__val = {140076488776041, 140076484344904, 140076536224224, 1024, 9400512, 12802088, 4294967296, 4294967295, 9400512, 108, 9400512, 3092568, 0, 8575168, 8573472, 140076488237056}}, sa_flags = 470742900, sa_restorer = 0x5}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f6619591f9d in g_assertion_message (domain=<optimized out>, file=<optimized out>, line=<optimized out>, func=0x7f6619aaa900 "gee_linked_list_real_get", message=0x8f7010 "assertion failed: (_tmp1_ < _tmp2_)") at /build/buildd/glib2.0-2.32.3/./glib/gtestutils.c:1861
        lstr = "679\000\377\177\000\000\000.\271'\377\177\000\000\350\003\000\000\000\000\000\000\\\212\252\031f\177\000"
        s = 0x8f70c0 ""
#3  0x00007f66195924c2 in g_assertion_message_expr (domain=0x0, file=0x7f6619aaa6df "linkedlist.c", line=679, func=0x7f6619aaa900 "gee_linked_list_real_get", expr=<optimized out>) at /build/buildd/glib2.0-2.32.3/./glib/gtestutils.c:1872
        s = <optimized out>
#4  0x00007f6619a89a11 in gee_linked_list_real_get (base=0x82dd90, index=<optimized out>) at linkedlist.c:679
        self = 0x82dd90
        result = 0x0
        _tmp0_ = <optimized out>
        _tmp1_ = <optimized out>
        _tmp2_ = <optimized out>
        _tmp3_ = <optimized out>
        _tmp4_ = 0x0
        n = <optimized out>
        _tmp5_ = <optimized out>
        _tmp6_ = <optimized out>
        __PRETTY_FUNCTION__ = "gee_linked_list_real_get"
#5  0x000000000040d57b in gala_plugin_end_animation (self=0x82d8c0, list=0x82d908, actor=0x9ca000) at /build/buildd/gala-0.1/obj-x86_64-linux-gnu/src/Main.c:2444
        _tmp26_ = 0
        _tmp29_ = 0x82dd90
        w = 0x0
        found = 0
        _tmp32_ = 0x0
        _tmp27_ = 1
        _tmp30_ = 1
        _tmp33_ = 0x0
        _tmp28_ = 2
        _tmp31_ = 0x0
        _tmp37_ = 0
        _tmp22_ = 0x82dd90
        _w_list = 0x82dd90
        _tmp24_ = 2
        _tmp21_ = 0x82dd90
        _tmp23_ = 0x82dd90
        _tmp25_ = 2
        _w_size = 2
        _w_index = 1
        result = 0
        _tmp0_ = 0x82dd90
        _tmp1_ = 0x9ca000
        _tmp2_ = -1
        index = -1
        _tmp3_ = -1
        __PRETTY_FUNCTION__ = "gala_plugin_end_animation"
#6  0x000000000040d8d1 in gala_plugin_real_kill_window_effects (base=0x82d8c0, actor=0x9ca000) at /build/buildd/gala-0.1/obj-x86_64-linux-gnu/src/Main.c:2532
        self = 0x82d8c0
        _tmp0_ = 0x9ca000
        _tmp1_ = 0
        _tmp3_ = 0x9ca000
        _tmp4_ = 0
        _tmp6_ = 0x9ca000
        _tmp7_ = 0
        _tmp9_ = 0x9ca000
        _tmp10_ = 0
        _tmp12_ = 0x9ca000
        _tmp13_ = 0
        __PRETTY_FUNCTION__ = "gala_plugin_real_kill_window_effects"
#7  0x00007f661be525af in ?? () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#8  0x00007f661be52a13 in meta_plugin_manager_event_simple () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#9  0x00007f661be5706f in ?? () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#10 0x00007f661be57f13 in meta_window_actor_show () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#11 0x00007f661be89e6f in ?? () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#12 0x00007f661be8ac9e in ?? () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#13 0x00007f661be7f318 in ?? () from /tmp/tmpFSR19A/usr/lib/libmutter.so.0
No symbol table info available.
#14 0x00007f661b72078c in clutter_check_windowing_backend (backend_type=0x2d90 <Address 0x2d90 out of bounds>) at ./clutter-main.c:3756
        context = <optimized out>
        __PRETTY_FUNCTION__ = "clutter_check_windowing_backend"
#15 0x0000000135cd2c95 in ?? ()
No symbol table info available.
#16 0x0000000000976580 in ?? ()
No symbol table info available.
#17 0x00007f661b722682 in master_clock_next_frame_delay (master_clock=<optimized out>) at ./clutter-master-clock.c:244
        _g_boolean_var_ = <optimized out>
        now = <optimized out>
        next = -1
#18 master_clock_next_frame_delay (master_clock=<optimized out>) at ./clutter-master-clock.c:189
No locals.
#19 0x0000000000000041 in ?? ()
No symbol table info available.
#20 0x0000000000e2c1a0 in ?? ()
No symbol table info available.
#21 0x0000000000000000 in ?? ()
No symbol table info available.