This repository contains the frat-xor tool for elaborating unsatisfiability proofs for CNF-XOR formulas from FRAT-XOR to XLRUP format. The latter format is supported by a formally verified proof checker cake_xlrup, whose verified binary implementation can be found in its own directory.
The format description is here.
This repository was created as a fork of FRAT-rs which is available here.
Proofs in FRAT-XOR format can be generated by the CryptoMiniSat SAT solver which is available here.
You must have the rust toolchain, including cargo, installed. Then you can build with:
cargo clean
cargo build --release
You can find the compiled tool at ./target/release/frat-xor. In case you need a static compilation, build with:
cargo clean
rustup target add x86_64-unknown-linux-musl
cargo build --release --target=x86_64-unknown-linux-musl
The compiled tool is at ./target/x86_64-unknown-linux-musl/release/frat-xor.
The following command elaborates the unsatisfiability proof in FRAT-XOR format (xfrat_file) of the CNF-XOR formula (xnf_file)
and produces the proof in XLRUP format (xlrup_file).
frat-xor elab xfrat_file xnf_file xlrup_file
You can find an example below.
frat-xor elab ./example/test_1.xfrat ./example/test_1.xnf ./example/test_1.xlrup
The elaborated proof can be checked with cake_xlrup.
cake_xlrup ./example/test_1.xnf ./example/test_1.xlrup