plasp—Translate PDDL to ASP

plasp 3 is in early development and not intended for productive use yet.

plasp 3 translates planning problem instances to ASP facts. plasp 3 supports the input languages PDDL (only basic features currently) and the SAS (full support of the current version 3), which is used by Fast Downward.

Please get in touch with Patrick Lühne if you have any suggestions.

Usage

Translating PDDL to ASP Facts

PDDL instances are translated to ASP facts as follows:

$ plasp domain.pddl problem.pddl

Alternatively, PDDL instances may first be translated to SAS, the output format of Fast Downward.

$ ./fast-downward.py --translate --build=release64 domain.pddl instance.pddl

This creates a file called output.sas, which may now be translated by plasp.

$ plasp output.sas

Solving the Translated Instance

The translated instance can now be solved incrementally with clingo and a meta encoding, for instance, pddl-meta-sequential-incremental.lp:

$ plasp domain.pddl problem.pddl > instance.lp
$ clingo encodings/pddl-meta-sequential-incremental.lp instance.lp

Building

plasp requires a C++14 compiler (preferrably GCC ≥ 6.1 or clang ≥ 3.8), the boost libraries (≥ 1.55), and CMake for building.

$ git clone https://github.com/potassco/plasp.git
$ cd plasp
$ mkdir -p build/release
$ cd build/release
$ cmake ../.. -DCMAKE_BUILD_TYPE=Release
$ make

The built plasp binary is then located at plasp/build/release/bin/plasp.

Running the Tests

plasp provides unit tests written using the Google Test framework. Before building and running the tests, make sure you have fetched the Google Test git submodule:

$ git submodule init
$ git submodule update

Afterward, build and run the tests as follows:

$ make run-tests

Contributors

• Patrick Lühne (plasp 3)

Earlier Versions

• René Knaebel
• Murat Knecht