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Thread 1 (Thread 0x7efceea71700 (LWP 28701)):
#0  strlen () at ../sysdeps/x86_64/strlen.S:214
No locals.
#1  0x00007efcecb9c87e in debTranslationsIndex::IndexURI[abi:cxx11](char const*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#2  0x00007efcecb9e433 in debTranslationsIndex::Exists() const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#3  0x00007efcecb2af6f in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#4  0x00007efcecb2e002 in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#5  0x00007efcecb10533 in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#6  0x00007efcecb10894 in pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.16
No symbol table info available.
#7  0x00007efcece3355f in ?? () from /usr/lib/python3/dist-packages/apt_pkg.cpython-34m-x86_64-linux-gnu.so
No symbol table info available.
#8  0x0000000000591e35 in ?? ()
No symbol table info available.
#9  0x0000000000517c77 in PyEval_EvalFrameEx ()
No symbol table info available.
#10 0x00000000005b1ad5 in PyEval_EvalCodeEx ()
No symbol table info available.
#11 0x0000000000517f0b in PyEval_EvalFrameEx ()
No symbol table info available.
#12 0x00000000004c9ec5 in ?? ()
No symbol table info available.
#13 0x00000000004f7c7b in ?? ()
No symbol table info available.
#14 0x0000000000559251 in ?? ()
No symbol table info available.
#15 0x0000000000591e9a in ?? ()
No symbol table info available.
#16 0x0000000000517c77 in PyEval_EvalFrameEx ()
No symbol table info available.
#17 0x00000000005b1ad5 in PyEval_EvalCodeEx ()
No symbol table info available.
#18 0x0000000000517f0b in PyEval_EvalFrameEx ()
No symbol table info available.
#19 0x00000000005b1ad5 in PyEval_EvalCodeEx ()
No symbol table info available.
#20 0x00000000005e0f65 in ?? ()
No symbol table info available.
#21 0x00000000005e102a in PyRun_FileExFlags ()
No symbol table info available.
#22 0x00000000005e1c4a in PyRun_SimpleFileExFlags ()
No symbol table info available.
#23 0x00000000005fe970 in Py_Main ()
No symbol table info available.
#24 0x00000000004c2d2f in main ()
No symbol table info available.