When using this feature unavailable of CVC4/5, an error message is displayed even though the VC is verified by another available solver. This could be a message displayed only in debug level of logs.
[ Error ] {* -> mapDefault$14}@?:? (of class inox.ast.Expressions$FiniteMap) is unsupported by solver smt-cvc5:
[ Error ] Cannot encode map with non-constant default value