ELF x64 - Double free
"1 → 5 → 1 → 3 → 7 → 1 → 4 → 5 → 1 → 5 → 2 → 1 → 7 → 1"
"1 → 5 → 1 → 3 → 7 → 1 → 4 → 5 → 1 → 5 → 2 → 1 → 7 → 1"