https://github.com/msakai/toysolver

My sandbox for experimenting with solver algorithms.
https://github.com/msakai/toysolver

algorithms mathematical-programming sat-solver smt-solver theorem-prover

Last synced: about 1 year ago
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My sandbox for experimenting with solver algorithms.

• Host: GitHub
• URL: https://github.com/msakai/toysolver
• Owner: msakai
• License: other
• Created: 2011-06-12T02:38:42.000Z (almost 15 years ago)
• Default Branch: master
• Last Pushed: 2025-05-08T10:56:14.000Z (about 1 year ago)
• Last Synced: 2025-05-08T11:33:47.083Z (about 1 year ago)
• Topics: algorithms, mathematical-programming, sat-solver, smt-solver, theorem-prover
• Language: Haskell
• Homepage:
• Size: 7.6 MB
• Stars: 156
• Watchers: 10
• Forks: 11
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.markdown
  • License: COPYING

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README

          
toysolver

=========

[![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)

[![Join the chat at https://gitter.im/msakai/toysolver](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/msakai/toysolver)

Hackage:

[![Hackage](https://img.shields.io/hackage/v/toysolver.svg)](https://hackage.haskell.org/package/toysolver)

Dev:

[![Build Status](https://github.com/msakai/toysolver/workflows/build/badge.svg)](https://github.com/msakai/toysolver/actions)

[![Coverage Status](https://coveralls.io/repos/msakai/toysolver/badge.svg)](https://coveralls.io/r/msakai/toysolver)

It provides solver implementations of various problems including SAT, SMT, Max-SAT, PBS (Pseudo Boolean Satisfaction), PBO (Pseudo Boolean Optimization), MILP (Mixed Integer Linear Programming) and non-linear real arithmetic.

In particular, it contains moderately-fast pure-Haskell SAT solver 'toysat'.

Installation

------------

See [INSTALL.md](INSTALL.md).

Usage

-----

This package includes several commands.

### toysolver

Arithmetic solver for the following problems:

* Mixed Integer Linear Programming (MILP or MIP)

* Boolean SATisfiability problem (SAT)

* PB

    * Pseudo Boolean Satisfaction (PBS)

    * Pseudo Boolean Optimization (PBO)

    * Weighted Boolean Optimization (WBO)

* Max-SAT families

    * Max-SAT

    * Partial Max-SAT

    * Weighted Max-SAT

    * Weighted Partial Max-SAT

* Real Closed Field

Usage:

    toysolver [OPTION...] [file.lp|file.mps]

    toysolver --lp [OPTION...] [file.lp|file.mps]

    toysolver --sat [OPTION...] [file.cnf]

    toysolver --pb [OPTION...] [file.opb]

    toysolver --wbo [OPTION...] [file.wbo]

    toysolver --maxsat [OPTION...] [file.cnf|file.wcnf]

    -h  --help           show help

    -v  --version        show version number

        --solver=SOLVER  mip (default), omega-test, cooper, cad, old-mip, ct

### toysat

SAT-based solver for the following problems:

* SAT

    * Boolean SATisfiability problem (SAT)

    * Minimally Unsatisfiable Subset (MUS)

    * Group-Oriented MUS (GMUS)

* PB

    * Pseudo Boolean Satisfaction (PBS)

    * Pseudo Boolean Optimization (PBO)

    * Weighted Boolean Optimization (WBO)

* Max-SAT families

    * Max-SAT

    * Partial Max-SAT

    * Weighted Max-SAT

    * Weighted Partial Max-SAT

* Integer Programming (all variables must be bounded)

Usage:

    toysat [file.cnf|-]

    toysat --sat [file.cnf|-]

    toysat --mus [file.gcnf|file.cnf|-]

    toysat --pb [file.opb|-]

    toysat --wbo [file.wbo|-]

    toysat --maxsat [file.cnf|file.wcnf|-]

    toysat --lp [file.lp|file.mps|-]

PB'12 competition result: 

* toysat placed 2nd in PARTIAL-BIGINT-LIN and SOFT-BIGINT-LIN categories

* toysat placed 4th in PARTIAL-SMALLINT-LIN and SOFT-SMALLINT-LIN categories

* toysat placed 8th in OPT-BIGINT-LIN category

### toysmt

SMT solver based on toysat.

Usage:

    toysmt [file.smt2]

Currently only QF_UF, QF_RDL, QF_LRA, QF_UFRDL and QF_UFLRA logic are supported.

### toyfmf

SAT-based finite model finder for first order logic (FOL).

Usage:

    toyfmf [file.tptp] [size]

### toyconvert

Converter between various problem files.

Usage:

    toyconvert -o [outputfile] [inputfile]

Supported formats:

* Input formats: .cnf .wcnf .opb .wbo .gcnf .lp .mps

* Output formats: .cnf .wcnf .opb .wbo .lsp .lp .mps .smp .smt2 .ys

Bindings

--------

* [ersatz-toysat](http://hackage.haskell.org/package/ersatz-toysat) -  toysat backend driver for [ersatz](http://hackage.haskell.org/package/ersatz)

* [satchmo-toysat](http://hackage.haskell.org/package/satchmo-toysat) - toysat backend driver for [satchmo](http://hackage.haskell.org/package/satchmo)

Spin-off projects and packages

------------------------------

* [bytestring-encoding](https://github.com/msakai/bytestring-encoding)

* [data-interval](https://github.com/msakai/data-interval)	

* [extended-reals](https://github.com/msakai/extended-reals)

* [finite-field](https://github.com/msakai/finite-field)

* [MIP](https://github.com/msakai/haskell-MIP)

* [OptDir](https://github.com/msakai/haskell-optdir)

* [pseudo-boolean](https://github.com/msakai/pseudo-boolean)

* [sign](https://github.com/msakai/sign)