#0 0x00007fff85943886 in __kill () #1 0x00007fff859e3eae in abort () #2 0x00007fff87fcf5d2 in __verbose_terminate_handler () #3 0x00007fff87fcdae1 in __cxxabiv1::__terminate () #4 0x00007fff87fcdb16 in terminate () #5 0x00007fff87fcdbfc in __cxa_throw () #6 0x00007fff87f89a3e in __throw_length_error () #7 0x00007fff87fb347f in string::_Rep::_S_create () #8 0x00007fff87fb3c5b in string::_S_construct () #9 0x00007fff87fb3ce8 in basic_string<...>::basic_string () #10 0x000000010000c31d in property_tree::xml_parser::encode_char_entities (s=@0x7fff5fbff270) at xml_parser_utils.hpp:55 #11 0x000000010000d9ed in write_graphml<...> (out=@0x7fff70fa8b00, g=@0x7fff5fbff580, vertex_index={<...> = {<...>}, <...>}, dp=@0x7fff5fbff530, ordered_vertices=false) at graphml.hpp:294 #12 0x000000010000e11a in write_graphml<...> (out=@0x7fff70fa8b00, g=@0x7fff5fbff580, dp=@0x7fff5fbff530, ordered_vertices=false) at graphml.hpp:332 #13 0x000000010000148d in main () at demo.cpp:24