Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7b7f0d7 in debListParser::NewVersion(pkgCache::VerIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
(gdb) bt full
#0  0x00007ffff7b7f0d7 in debListParser::NewVersion(pkgCache::VerIterator&) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#1  0x00007ffff7b312f0 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#2  0x00007ffff7b32b28 in pkgCacheGenerator::MergeList(pkgCacheGenerator::ListParser&, pkgCache::VerIterator*) ()
   from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#3  0x00007ffff7b9b218 in debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#4  0x00007ffff7b2b145 in ?? () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#5  0x00007ffff7b2e30c in pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#6  0x00007ffff7b23b9e in pkgCacheFile::BuildCaches(OpProgress*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#7  0x0000000000408ea2 in ?? ()
No symbol table info available.
#8  0x00007ffff7ad4032 in CommandLine::DispatchArg(CommandLine::Dispatch*, bool) () from /usr/lib/x86_64-linux-gnu/libapt-pkg.so.4.12
No symbol table info available.
#9  0x0000000000407be3 in ?? ()
No symbol table info available.
#10 0x00007ffff6f99ec5 in __libc_start_main (main=0x407a40, argc=3, argv=0x7fffffffe0c8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fffffffe0b8) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 7659654023835576064, 4226406, 140737488347328, 0, 0, -7659654024907692288, -7659669467480824064}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x416460, 0x7fffffffe0c8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4285536}}}
        not_first_call = <optimized out>
#11 0x0000000000407d8f in ?? ()
No symbol table info available.