#0  0x00007ffff4a0f4b5 in raise () from /lib/libc.so.6
#1  0x00007ffff4a12f50 in abort () from /lib/libc.so.6
#2  0x00007ffff4a47c97 in ?? () from /lib/libc.so.6
#3  0x00007ffff4a51dd6 in ?? () from /lib/libc.so.6
#4  0x00007ffff4a54c4e in ?? () from /lib/libc.so.6
#5  0x00007ffff4a55e74 in calloc () from /lib/libc.so.6
#6  0x0000000001293bfb in MEM_callocN (len=160, str=0x19f36f4 "SCREEN_OT_animation_step") at intern/guardedalloc/intern/mallocn.c:301
#7  0x0000000000887d3e in wm_operator_create (wm=0x3d61e40, ot=0x2aa0710, properties=0x3f16400, reports=0x0) at source/blender/windowmanager/intern/wm_event_system.c:438
#8  0x0000000000888196 in wm_operator_invoke (C=0x2861ab0, ot=0x2aa0710, event=0x7fffe080e1a0, properties=0x3f16400, reports=0x0) at source/blender/windowmanager/intern/wm_event_system.c:544
#9  0x0000000000889502 in wm_handler_operator_call (C=0x2861ab0, handlers=0x3d62030, handler=0x3e1aab0, event=0x7fffe080e1a0, properties=0x3f16400)
    at source/blender/windowmanager/intern/wm_event_system.c:1110
#10 0x0000000000889c22 in wm_handlers_do (C=0x2861ab0, event=0x7fffe080e1a0, handlers=0x3d62030) at source/blender/windowmanager/intern/wm_event_system.c:1320
#11 0x000000000088a70e in wm_event_do_handlers (C=0x2861ab0) at source/blender/windowmanager/intern/wm_event_system.c:1612
#12 0x000000000087944a in WM_main (C=0x2861ab0) at source/blender/windowmanager/intern/wm.c:325
#13 0x000000000087467f in main (argc=2, argv=0x7fffffffe348) at source/creator/creator.c:1038