A symbolic model checker for Dynamic Epistemic Logic.
You can find a complete literate Haskell documentation in the file SMCDEL.pdf.
Johan van Benthem, Jan van Eijck, Malvin Gattinger, and Kaile Su: Symbolic Model Checking for Dynamic Epistemic Logic. In: Proceedings of The Fifth International Conference on Logic, Rationality and Interaction (LORI-V), 2015.
You can try SMCDEL online here: https://w4eg.de/malvin/illc/smcdelweb/
On Debian, just do
sudo apt install graphviz dot2tex.
- Use stack from https://www.stackage.org
stack buildwill compile everything. This might fail if one of the BDD packages written in C and C++ is missing. In this case, install those manually and then try
stack installwill put two executables
smcdel-webinto ~/.local/bin which should be in your
Create a text file
MuddyShort.smcdel.txtwhich describes the knowledge structure and the formulas you want to check for truth or validity:
-- Three Muddy Children in SMCDEL VARS 1,2,3 LAW Top OBS alice: 2,3 bob: 1,3 carol: 1,2 WHERE? [ ! (1|2|3) ] alice knows whether 1 VALID? [ ! (1|2|3) ] [ ! ((~ (alice knows whether 1)) & (~ (bob knows whether 2)) & (~ (carol knows whether 3))) ] [ ! ((~ (alice knows whether 1)) & (~ (bob knows whether 2)) & (~ (carol knows whether 3))) ] (alice,bob,carol) comknow that (1 & 2 & 3)
smcdel MuddyShort.smcdel.txtresulting in:
>> smcdel MuddyShort.smcdel.txt SMCDEL 1.0 by Malvin Gattinger -- https://github.com/jrclogic/SMCDEL At which states is ... true?   Is ... valid on the given structure? True
More example files are in the folder Examples.
To use the web interface run
smcdel-weband then open http://localhost:3000/index.html.
To deal with more complex models and formulas, use SMCDEL as a Haskell module.
Used BDD packages
SMCDEL can be used with different BDD packages. To compile and run the benchmarks you will have to install all of them.