.
Thread 1 (LWP 350):
#0  0x00007fac854ff660 in script_obj_deref_direct () from /tmp/apport_sandbox_eiv8XD/usr/lib/x86_64-linux-gnu/plymouth/script.so
No symbol table info available.
#1  0x00007fac854ff8df in script_obj_as_custom () from /tmp/apport_sandbox_eiv8XD/usr/lib/x86_64-linux-gnu/plymouth/script.so
No symbol table info available.
#2  0x00007fac854fee90 in script_execute_object () from /tmp/apport_sandbox_eiv8XD/usr/lib/x86_64-linux-gnu/plymouth/script.so
No symbol table info available.
#3  0x00007fac85502ccc in script_lib_plymouth_on_update_status () from /tmp/apport_sandbox_eiv8XD/usr/lib/x86_64-linux-gnu/plymouth/script.so
No symbol table info available.
#4  0x000000000040665c in ply_boot_connection_on_request ()
No symbol table info available.
#5  0x00007fac87677f46 in ply_event_loop_process_pending_events () from /tmp/apport_sandbox_eiv8XD/lib/x86_64-linux-gnu/libply.so.4
No symbol table info available.
#6  0x00007fac87678400 in ply_event_loop_run () from /tmp/apport_sandbox_eiv8XD/lib/x86_64-linux-gnu/libply.so.4
No symbol table info available.
#7  0x0000000000404e81 in main ()
No symbol table info available.