I-DLV is a full-fleged Answer Set Programming and Datalog reasoner. It supports the ASP-Core-2 standard language; nevertheless, the system supports additional linguistic extensions such as list terms and external atoms. I-DLV is also a full-fledged deductive database system, supporting query answering powered by the Magic Sets technique.
I-DLV has also been integrated as the grounding module of the completely renewed second version of the logic-based Artificial Intelligence system DLV.
I-DLV is free for academic and non-commerical educational use, as well as for use by non-profit organisations.
You can download the latest stable release of I-DLV in the release section of github.
I-DLV can interoperate with the state-of-the-art solvers wasp and clasp. Indeed, by default I-DLV output is produced in a numeric format compliant with the mentioned solvers.
In order to interoperate with a solver type:
./idlv [filename [filename [...]]] | ./solver_executable
In order to obtain the ground program in textual format type:
./idlv --t [filename [filename [...]]]
I-DLV can be also adopted as Datalog reasoner. Indeed, the system when fed with a disjunction-free and stratified under negation program is able to fully evaluate it and compute its perfect model.
To this end, one can type:
./idlv --t [filename [filename [...]]]
In case a query is provided, I-DLV automatically enables the Magic Sets technique; in order to obtain only the query answers as output type:
./idlv --query [filename [filename [...]]]
For a detailed description of I-DLV capabilities please visit the official guide.
- Francesco Calimeri
- Francesco Pacenza
- Simona Perri
- Jessica Zangari
- Antonino Agostino
- Bruno Barbara
- Giuseppe Benvenuto
- Davide Fuscà
- Nicola Greco
- Elena Mastria
- Giovanni Melissari
- Matteo Perfidio
- Agostino Rizzo
For additional details and bug report, please write to i-dlv@googlegroups.com.