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MiniZinc

MiniZinc is a high-level constraint modelling language that allows you to easily express and solve discrete optimisation problems.

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Latest release: 2.8.4 (changelog)

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MiniZinc is developed at Monash University with support from OPTIMA.

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Try MiniZinc

Try one of the examples, or write your own model.

Why choose MiniZinc?

  • High-level language

    Model constraint satisfaction and optimisation problems using readable, intuitive logical constructs, with full type safety.

  • Solver independent

    Run the same model using a variety of different solver technologies, without being locked into a particular solver.

  • Pre-defined constraints

    MiniZinc features a large library of pre-defined constraints, making modelling complex relationships simple.

  • Fully featured development environment

    Use the MiniZinc IDE to write and run models, visualise search and solutions, profile performance and more.

  • In-depth learning materials

    MiniZinc has comprehensive documentation, including beginner tutorials, advanced courses, a user manual, and library documentation.

  • Integrate MiniZinc into your project

    MiniZinc can be embedded into Python and JavaScript programs, and can even be used entirely from within the browser.

Latest Release

MiniZinc 2.8.4

Released 10 May 2024

  • Add -w and --disable-warnings flags that will suppress all warnings emitted by the flattening process.
  • Add option for solver libraries to set mzn_opt_annotate_computed_domains such that the compiler will signal domains that are enforced by separate constraints using a computed_domain annotation.
  • Always output multidimensional arrays as nested arrays when using showJSON for consistency.
  • Add missing implementation for default for sets expressions.
  • Add missing optional versions of unary mathematical functions/operators.
  • Improve special-case handling of boolean <-> and xor operators.
  • Allow IDE MOOC submission window to be scrolled.
  • Increase IDE hard process termination timeout to 1s.
  • Plus more than 30 bugfixes.

See the full changelog.

View all releases

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