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finalizing redundant rules to restrict number of parallel plans

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gebser 2016-11-15 21:16:01 +01:00
parent 6f1a64a705
commit 367f49253e
1 changed files with 10 additions and 9 deletions
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19
encodings/strips/redundancy.lp
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@ -1,11 +1,13 @@
% Additional rules for enforcing the inclusion of parallel actions in plans,
% whenever such 'redundant' actions are compatible with states and other actions
compatible(A,A1) :- active(A), active(A1), A != A1, _parallel = 2,
not diverge(A,A1), not diverge(A1,A).
disable(A,A1,A2) :- disable(A1,A2), compatible(A,A1), compatible(A,A2).
disabled(A,A2) :- disable(A,A1,A2).
disabled(A,A2) :- disable(A,A2), _parallel = 2.
compatible(A,A1) :- active(A), active(A1), A != A1, _parallel = 2,
not diverge(A,A1), not diverge(A1,A).
compatible(A) :- compatible(A,A1).
disable(A,A1,A2) :- disable(A1,A2), compatible(A,A1), compatible(A,A2).
disabled(A,A2) :- disable(A,A1,A2).
disabled(A,A2) :- disable(A,A2).
#program step(t).
@ -17,16 +19,15 @@ defeated(A,t) :- _parallel = 1, active(A), precondition(A,X,V), not holds(X,V,t)
defeated(A,t) :- _parallel = 1, active(A), postcondition(A,X,V), not precondition(A,X,V),
single(X,t).
proceed(A,X,V,t) :- active(A), holds(X,V,t-1), scope(X,V).
proceed(A,X,V,t) :- compatible(A), holds(X,V,t-1), scope(X,V).
proceed(A,X,V,t) :- compatible(A,A1), occurs(A1,t), perform(A,A1,t),
postcondition(A1,X,V), scope(X,V), not precondition(A1,X,V).
perform(A,A1,t) :- disabled(A,A1), not occurs(A1,t).
perform(A,A1,t) :- compatible(A,A1),
proceed(A,X,V,t) : precondition(A1,X,V); perform(A,A2,t) : disable(A,A1,A2).
perform(A,A,t) :- active(A), _parallel = 2,
proceed(A,X,V,t) : precondition(A,X,V); perform(A,A2,t) : disable(A,A2).
defeated(A,t) :- _parallel = 2, active(A), not perform(A,A,t).
defeated(A,t) :- compatible(A), precondition(A,X,V), not proceed(A,X,V,t).
defeated(A,t) :- compatible(A), disable(A,A2), not perform(A,A2,t).
:- active(A), not occurs(A,t), not defeated(A,t), _parallel = 1 : _parallel != 2.