MuHFL

A full-HFLz solver

Installation

The solver can be built with docker. The Dockerfile is currently unmaintained. If you want to try MuHFL please contact the maintainer.

cd docker

# build
# the ssh key is for kamocyc/hflmc2.git, kamocyc/muapprox.git, ketanahashi/fptprove.git repository
DOCKER_BUILDKIT=1 docker build --progress=plain --secret id=ssh,src=<path_to_ssh_private_key> .

# run
docker run -v <path_to_directory_containing_input_files>:/home/opam/inputs/ <image_id> muapprox_main /home/opam/inputs/<input_file_name>

# examples
docker run -v <path_to_repositoy>/benchmark/inputs:/home/opam/inputs/ <image_id> muapprox_main /home/opam/inputs/termination/sum.in                  # valid
docker run -v <path_to_repositoy>/benchmark/inputs:/home/opam/inputs/ <image_id> muapprox_main /home/opam/inputs/nontermination/fib_CPS_nonterm.in   # valid
docker run -v <path_to_repositoy>/benchmark/inputs:/home/opam/inputs/ <image_id> muapprox_main /home/opam/inputs/termination/notused/sum-invalid.in  # invalid

Run benchmark

1. In the repository's root directory, run python3 memory_watchdog.py &. This script kills the (backend) solver if it uses excessive memory.
2. cd benchmark
3. python3 bench1.py --timeout <timeout for the solver> --benchmark <text file with a list of input files (in benchmark/file_list directory)> <script to run the solver (in benchmark directory )>
   • e.g. python3 bench1.py --timeout 900 --benchmark all_paper_t muapprox_katsura.

• Benchmark used in the paper
  • all_paper_t for Experiment 1 (all inputs are in benchmark/inputs/paper directory), ho for Experiment 2 (run_ho_test.sh script), and prog2 for Experiment 3
  • muapprox_katsura script is used

Scripts (in the repository's root directory)

• x: shortcut to run the solver
• killp.sh: Kill zombie processes (The script kills processes with the current user and with specific process names)
• clear.sh: Remove temporary files created in the tool's working directory
• simplify.sh: Simplify a given HFL formula

Other tools

• bin2/dual.ml: Output a dual formula of a given formula
  • e.g., dune exec bin2/dual.exe -- benchmark/inputs/paper/termination/sum.in

Show help

docker run <image_id> muapprox_main --help | less

Installation of other backend nu-HFL(Z) solvers (optional)

PaHFL (developed by Iwayama)

Installation

git clone https://github.com/Hogeyama/hflmc2.git
# Then, build with Dockerfile
#

Set the full path of the solver executable to the environment variable iwayama_solver_path.

Older version

git clone git@github.com:kamocyc/hflmc2-1.git
cd hflmc2-1
git checkout -b old
# Then, build with Dockerfile
#

First-order nu-HFL(Z) solver

Installation

git clone https://github.com/kamocyc/nu_only_mu_arithmetic_solver
# Then, build according to readme.md
#

Set the full path of the solver executable to the environment variable first_order_solver_path.