General: https://en.wikipedia.org/wiki/Planning_Domain_Definition_Language

Extensions: https://planning.wiki/ref/pddl/requirements#typing

FastDownward Heuristics/Support https://www.fast-downward.org/Doc/Evaluator https://www.fast-downward.org/PddlSupport

Usage https://www.fast-downward.org/PlannerUsage

Example:

nix-shell -p fast-downward

does not support conditional effect

fast-downward domain.pddl problem.pddl --search "astar(lmcut())"

fast-downward domain.pddl problem.pddl --evaluator "hff=ff()" --evaluator "hcea=cea()" --search "lazy_greedy([hff, hcea], preferred=[hff, hcea])"

astar(blind()) works with conditional effect

fast-downward domain.pddl problem.pddl --search "astar(ipdb())"

From Docu online: fast-downward domain.pddl problem.pddl --search "astar(blind())"

admissible:

• blind
• hmax
• landmark_cost_partitioning(factory)
• landmark_sum(factory) lm_rhw, lm_zg
• merge_and_shrink

not admissible

• add
• cg
• ff
• goalcount
• hm (conditional ignored, not admissible)

admissible but not conditional

• cegar

https://www.fast-downward.org/Doc/SearchAlgorithm astar lazy_greedy eager_greedy

fast-downward domain.pddl problem.pddl --evaluator "hff=ff()" --evaluator "hcea=cea()" --search "lazy_greedy([hff, hcea], preferred=[hff, hcea])"

fast-downward domain.pddl problem.pddl --alias seq-sat-lama-2011

From Help

Examples:

Translate and find a plan with A* + LM-Cut: fast-downward misc/tests/benchmarks/gripper/prob01.pddl --search "astar(lmcut())"

Translate and run no search: fast-downward --translate misc/tests/benchmarks/gripper/prob01.pddl

Run predefined configuration (LAMA-2011) on translated task: fast-downward --alias seq-sat-lama-2011 output.sas

Run a portfolio on a translated task: fast-downward --portfolio driver/portfolios/seq_opt_fdss_1.py --search-time-limit 30m output.sas

Run the search component in debug mode (with assertions enabled) and validate the resulting plan: fast-downward --debug output.sas --search "astar(ipdb())"

Pass options to translator and search components: fast-downward misc/tests/benchmarks/gripper/prob01.pddl --translate-options --full-encoding --search-options --search "astar(lmcut())"

Find a plan and validate it: fast-downward --validate misc/tests/benchmarks/gripper/prob01.pddl --search "astar(cegar())"

fast-downward --portfolio driver/portfolios/seq_opt_fdss_1.py domain.pddl problem.pddl

export SRCDIR=$PWD &&
cd $(dirname $(which fast-downward)) &&
cd ../lib/python3.10/site-packages/ &&
fast-downward --portfolio ./driver/portfolios/seq_opt_fdss_1.py $SRCDIR/domain.pddl $SRCDIR/problem.pddl &&
cd $SRCDIR