.
Thread 1 (Thread 5207):
#0  0x00007fbcf8059d05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <value optimized out>
        selftid = 5207
#1  0x00007fbcf805dab6 in abort () at abort.c:92
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0, sa_sigaction = 0}, sa_mask = {__val = {25733936, 2, 140449595216320, 140449591511968, 140449646639568, 25571840, 2, 4294967295, 140449591994595, 2, 2, 3068024, 0, 0, 6405056, 140449597456384}}, sa_flags = -80843484, sa_restorer = 0x7fff00000001}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fbcf8623a22 in g_logv (log_domain=0x7fbcf9bd46db "Gtk", log_level=<value optimized out>, format=0x7fbcf9c66cc8 "GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported", args1=0x7fffe8724a70) at /build/buildd/glib2.0-2.28.5/./glib/gmessages.c:557
        depth = <value optimized out>
        domain = 0x0
        data = 0x0
        log_func = 0x7fbcf8622ba0 <g_log_default_handler>
        domain_fatal_mask = <value optimized out>
        masquerade_fatal = <value optimized out>
        test_level = <value optimized out>
        was_fatal = 0
        was_recursion = 0
        i = 2
#3  0x00007fbcf8623aaf in g_log (log_domain=<value optimized out>, log_level=<value optimized out>, format=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gmessages.c:577
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffe8724b50, reg_save_area = 0x7fffe8724a90}}
#4  0x00007fbcf9a3860d in do_pre_parse_initialization (context=<value optimized out>, group=<value optimized out>, data=<value optimized out>, error=<value optimized out>) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkmain.c:676
        env_string = <value optimized out>
#5  pre_parse_hook (context=<value optimized out>, group=<value optimized out>, data=<value optimized out>, error=<value optimized out>) at /build/buildd/gtk+2.0-2.24.4/gtk/gtkmain.c:785
No locals.
#6  0x00007fbcf86277f1 in g_option_context_parse (context=0x1861940, argc=0x7fffe8724c4c, argv=0x7fffe8724c40, error=0x7fffe8724c58) at /build/buildd/glib2.0-2.28.5/./glib/goption.c:1727
        group = <value optimized out>
        i = <value optimized out>
        j = <value optimized out>
        k = <value optimized out>
        list = <value optimized out>
#7  0x0000000000409bd9 in main (argc=1, argv=0x7fffe8724d58) at main.c:65
        app = 0x1861880
        context = 0x1861940
        error = 0x0