[Civl] Add support for preconditions to actions #872
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds preconditions to actions for the purpose of providing extra contextual information in left mover checks for inductive sequentialization. These preconditions are proved to be interference-free just like other preconditions. Their initiation is established by the IS invariant during the step condition check for the action being moved left. As a result of this enhancement, the use of abstractions (and the eliminates clause) is eliminated from Civl benchmarks, the strengthening achieved by the extra gates of the abstractions now achieved by the preconditions.
The intention is to eliminate abstractions and the eliminates clause from Civl. But that will be done in a separate PR.