mirror of
https://github.com/Z3Prover/z3
synced 2025-11-03 21:09:11 +00:00
223 lines
6.9 KiB
Markdown
223 lines
6.9 KiB
Markdown
# Z3
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Z3 is a theorem prover from Microsoft Research.
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It is licensed under the [MIT license](LICENSE.txt).
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If you are not familiar with Z3, you can start [here](https://github.com/Z3Prover/z3/wiki#background).
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Pre-built binaries for stable and nightly releases are available from [here](https://github.com/Z3Prover/z3/releases).
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Z3 can be built using [Visual Studio][1], a [Makefile][2] or using [CMake][3]. It provides
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[bindings for several programming languages][4].
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See the [release notes](RELEASE_NOTES) for notes on various stable releases of Z3.
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## Build status
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| Azure Pipelines | TravisCI |
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| --------------- | -------- |
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[](https://z3build.visualstudio.com/Z3Build/_build/latest?definitionId=10) | [](https://travis-ci.org/Z3Prover/z3)
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[1]: #building-z3-on-windows-using-visual-studio-command-prompt
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[2]: #building-z3-using-make-and-gccclang
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[3]: #building-z3-using-cmake
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[4]: #z3-bindings
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## Building Z3 on Windows using Visual Studio Command Prompt
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32-bit builds, start with:
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```bash
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python scripts/mk_make.py
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```
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or instead, for a 64-bit build:
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```bash
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python scripts/mk_make.py -x
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```
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then:
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```bash
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cd build
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nmake
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```
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## Building Z3 using make and GCC/Clang
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Execute:
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```bash
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python scripts/mk_make.py
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cd build
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make
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sudo make install
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```
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Note by default ``g++`` is used as the C++ compiler if it is available. If you
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would prefer to use Clang change the ``mk_make.py`` invocation to:
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```bash
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CXX=clang++ CC=clang python scripts/mk_make.py
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```
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Note that Clang < 3.7 does not support OpenMP.
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You can also build Z3 for Windows using Cygwin and the Mingw-w64 cross-compiler.
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To configure that case correctly, make sure to use Cygwin's own python and not
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some Windows installation of Python.
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For a 64 bit build (from Cygwin64), configure Z3's sources with
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```bash
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CXX=x86_64-w64-mingw32-g++ CC=x86_64-w64-mingw32-gcc AR=x86_64-w64-mingw32-ar python scripts/mk_make.py
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```
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A 32 bit build should work similarly (but is untested); the same is true for 32/64 bit builds from within Cygwin32.
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By default, it will install z3 executable at ``PREFIX/bin``, libraries at
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``PREFIX/lib``, and include files at ``PREFIX/include``, where ``PREFIX``
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installation prefix if inferred by the ``mk_make.py`` script. It is usually
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``/usr`` for most Linux distros, and ``/usr/local`` for FreeBSD and macOS. Use
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the ``--prefix=`` command line option to change the install prefix. For example:
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```bash
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python scripts/mk_make.py --prefix=/home/leo
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cd build
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make
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make install
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```
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To uninstall Z3, use
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```bash
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sudo make uninstall
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```
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To clean Z3 you can delete the build directory and run the ``mk_make.py`` script again.
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## Building Z3 using CMake
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Z3 has a build system using CMake. Read the [README-CMake.md](README-CMake.md)
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file for details. It is recommended for most build tasks,
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except for building OCaml bindings.
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## Z3 bindings
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Z3 has bindings for various programming languages.
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### ``.NET``
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You can install a nuget package for the latest release Z3 from [nuget.org](https://www.nuget.org/packages/Microsoft.Z3.x64/).
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Use the ``--dotnet`` command line flag with ``mk_make.py`` to enable building these.
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On non-windows platforms [mono](http://www.mono-project.com/) is required. On these
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platforms the location of the C# compiler and gac utility need to be known. You
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can set these as follows if they aren't detected automatically. For example:
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```bash
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CSC=/usr/bin/csc GACUTIL=/usr/bin/gacutil python scripts/mk_make.py --dotnet
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```
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Note for very old versions of Mono (e.g. ``2.10``) you may need to set ``CSC``
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to ``/usr/bin/dmcs``.
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Note that when ``make install`` is executed on non-windows platforms the GAC
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utility is used to install ``Microsoft.Z3.dll`` into the
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[GAC](http://www.mono-project.com/docs/advanced/assemblies-and-the-gac/) as the
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``Microsoft.Z3.Sharp`` package. During install a
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[pkg-config](http://www.freedesktop.org/wiki/Software/pkg-config/) file
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(``Microsoft.Z3.Sharp.pc``) is also installed which allows the
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[MonoDevelop](http://www.monodevelop.com/) IDE to find the bindings. Running
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``make uninstall`` will remove the dll from the GAC and the ``pkg-config`` file.
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See [``examples/dotnet``](examples/dotnet) for examples.
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### ``C``
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These are always enabled.
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See [``examples/c``](examples/c) for examples.
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### ``C++``
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These are always enabled.
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See [``examples/c++``](examples/c++) for examples.
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### ``Java``
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Use the ``--java`` command line flag with ``mk_make.py`` to enable building these.
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See [``examples/java``](examples/java) for examples.
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### ``OCaml``
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Use the ``--ml`` command line flag with ``mk_make.py`` to enable building these.
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See [``examples/ml``](examples/ml) for examples.
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### ``Python``
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You can install the Python wrapper for Z3 for the latest release from pypi using the command
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```bash
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pip install z3-solver
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```
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Use the ``--python`` command line flag with ``mk_make.py`` to enable building these.
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Note that is required on certain platforms that the Python package directory
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(``site-packages`` on most distributions and ``dist-packages`` on Debian based
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distributions) live under the install prefix. If you use a non standard prefix
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you can use the ``--pypkgdir`` option to change the Python package directory
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used for installation. For example:
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```bash
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python scripts/mk_make.py --prefix=/home/leo --python --pypkgdir=/home/leo/lib/python-2.7/site-packages
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```
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If you do need to install to a non standard prefix a better approach is to use
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a [Python virtual environment](https://virtualenv.readthedocs.org/en/latest/)
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and install Z3 there. Python packages also work for Python3.
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Under Windows, recall to build inside the Visual C++ native command build environment.
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Note that the ``build/python/z3`` directory should be accessible from where python is used with Z3
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and it depends on ``libz3.dll`` to be in the path.
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```bash
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virtualenv venv
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source venv/bin/activate
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python scripts/mk_make.py --python
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cd build
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make
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make install
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# You will find Z3 and the Python bindings installed in the virtual environment
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venv/bin/z3 -h
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...
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python -c 'import z3; print(z3.get_version_string())'
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...
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```
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See [``examples/python``](examples/python) for examples.
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### ``Web Assembly``
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[WebAssembly](https://github.com/cpitclaudel/z3.wasm) bindings are provided by Clément Pit-Claudel.
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## System Overview
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## Interfaces
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* Default input format is [SMTLIB2](http://smtlib.cs.uiowa.edu)
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* Other native foreign function interfaces:
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* [C++ API](https://z3prover.github.io/api/html/group__cppapi.html)
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* [.NET API](https://z3prover.github.io/api/html/namespace_microsoft_1_1_z3.html)
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* [Java API](https://z3prover.github.io/api/html/namespacecom_1_1microsoft_1_1z3.html)
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* [Python API](https://z3prover.github.io/api/html/namespacez3py.html) (also available in [pydoc format](https://z3prover.github.io/api/html/z3.html))
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* C
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* OCaml
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