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Restrict the scope of bool pred internalisation to syntactic transformation only #3945

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Jun 18, 2024
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13 changes: 3 additions & 10 deletions booster/library/Booster/Syntax/Json/Internalise.hs
Original file line number Diff line number Diff line change
Expand Up @@ -429,27 +429,20 @@ internalisePred allowAlias checkSubsorts sortVars definition@KoreDefinition{sort
Syntax.KJBottom{} -> notSupported
Syntax.KJNot{arg} -> do
recursion arg >>= \case
[BoolPred (Internal.Predicate (Internal.EqualsInt a b))] ->
pure [BoolPred $ Internal.Predicate $ Internal.NEqualsInt a b]
[BoolPred (Internal.Predicate (Internal.NEqualsInt a b))] ->
pure [BoolPred $ Internal.Predicate $ Internal.EqualsInt a b]
[BoolPred (Internal.Predicate (Internal.EqualsK a b))] ->
pure [BoolPred $ Internal.Predicate $ Internal.NEqualsK a b]
[BoolPred (Internal.Predicate (Internal.NEqualsK a b))] ->
pure [BoolPred $ Internal.Predicate $ Internal.EqualsK a b]
[BoolPred (Internal.Predicate p')] ->
pure [BoolPred $ Internal.Predicate $ Internal.NotBool p']
[SubstitutionPred k v] ->
if "@" `isPrefixOf` k.variableName
then notSupported -- @ variables are set variables, the negation of which we do not support internalising
else case sortOfTerm v of
Internal.SortInt ->
pure [BoolPred $ Internal.Predicate $ Internal.NEqualsInt (Internal.Var k) v]
pure [BoolPred $ Internal.Predicate $ Internal.NotBool $ Internal.EqualsInt (Internal.Var k) v]
otherSort ->
pure
[ BoolPred $
Internal.Predicate $
Internal.NEqualsK (Internal.KSeq otherSort $ Internal.Var k) (Internal.KSeq otherSort v)
Internal.NotBool $
Internal.EqualsK (Internal.KSeq otherSort $ Internal.Var k) (Internal.KSeq otherSort v)
]
_ -> notSupported
Syntax.KJAnd{patterns = []} -> notSupported
Expand Down
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