Closed rainoftime closed 3 years ago
Hi, for the following formula, z3 Commit: 223bffd
(set-logic UFNIA) (set-option :model_validate true) (declare-fun i4 () Int) (assert (= 1 i4)) (check-sat-using (then eq2bv unit-subsume-simplify smt)) (get-model)
sat (error "line 5 column 55: an invalid model was generated") ( ;; universe for (_ bv 2): ;; bv!val!0 ;; ----------- ;; definitions for universe elements: (declare-fun bv!val!0 () (_ bv 2)) ;; cardinality constraint: (forall ((x (_ bv 2))) (= x bv!val!0)) ;; ----------- (define-fun i4 () Int 0) (define-fun bv () (_ bv 2) #b01) (define-fun bv () (_ bv 1) #b0) )
UFNIA doesn't know bit-vectors. There were similar "abuse" bugs recently: setting the SMTLIB logic and using tactics that circumvent the logic.
Hi, for the following formula, z3 Commit: 223bffd