#0  0x00007fca2c41ad04 in FcStrSetMember () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
No symbol table info available.
#1  0x00007fca2c41ad53 in ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
No symbol table info available.
#2  0x00007fca2c41aeb6 in FcStrSetAdd () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
No symbol table info available.
#3  0x00007fca2c40bfe1 in ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
No symbol table info available.
#4  0x00007fca2c40c1d1 in ?? () from /usr/lib/x86_64-linux-gnu/libfontconfig.so.1
No symbol table info available.
#5  0x00000000004019d2 in ?? ()
No symbol table info available.
#6  0x0000000000401a84 in ?? ()
No symbol table info available.
#7  0x0000000000401a84 in ?? ()
No symbol table info available.
#8  0x0000000000401528 in ?? ()
No symbol table info available.
#9  0x00007fca2be38ea5 in re_node_set_init_copy (src=<error reading variable: Cannot access memory at address 0xffffffffffffff38>, dest=0x2430000) at regex_internal.c:1032
No locals.
#10 group_nodes_into_DFAstates (dests_ch=<error reading variable: Cannot access memory at address 0xffffffffffffff30>, dests_node=<error reading variable: Cannot access memory at address 0xffffffffffffff38>, state=<error reading variable: Cannot access memory at address 0xffffffffffffff10>, dfa=<error reading variable: Cannot access memory at address 0xffffffffffffff28>) at regexec.c:3694
        remains = <error reading variable remains (Cannot access memory at address 0xffffffffffffffb0)>
        has_intersec = <optimised out>
        not_consumed = 140735828978768
        not_subset = <optimised out>
        intersec = <error reading variable intersec (Cannot access memory at address 0xffffffffffffff90)>
        node = <optimised out>
        type = <optimised out>
        constraint = <optimised out>
        i = <error reading variable i (Cannot access memory at address 0xffffffffffffff40)>
        accepts = <error reading variable accepts (Cannot access memory at address 0xffffffffffffff70)>
        result = 34
        j = 0
        ndests = 0
        cur_nodes = <error reading variable cur_nodes (Cannot access memory at address 0xffffffffffffff10)>
#11 build_trtable (dfa=<error reading variable: Cannot access memory at address 0xffffffffffffff28>, dfa@entry=<error reading variable: Cannot access memory at address 0x8>, state=<error reading variable: Cannot access memory at address 0xffffffffffffff10>) at regexec.c:3353
        err = <optimised out>
        i = <optimised out>
        j = <optimised out>
        ch = <optimised out>
        need_word_trtable = 0
        elem = <optimised out>
        mask = <optimised out>
        dests_node_malloced = <error reading variable dests_node_malloced (Cannot access memory at address 0xffffffffffffff1b)>
        dest_states_malloced = false
        trtable = <optimised out>
        dest_states = 0x0
        dest_states_word = <optimised out>
        dest_states_nl = <optimised out>
        follows = <error reading variable follows (Cannot access memory at address 0xffffffffffffff60)>
        dests_node = <error reading variable dests_node (Cannot access memory at address 0xffffffffffffff38)>
        dests_ch = <error reading variable dests_ch (Cannot access memory at address 0xffffffffffffff30)>
        acceptable = <error reading variable acceptable (Cannot access memory at address 0xffffffffffffffb0)>
        dests_alloc = <error reading variable dests_alloc (Cannot access memory at address 0xffffffffffffff38)>