Z3无效的功能应用程序，args缺失

Question

这是我第一次使用Z3并且我试图找到给定表单的所有坐标真值分配，它一直在抛出：

Z3(5, 10): ERROR: invalid function application, arguments missing

(echo "((p => q) v (q => p)) ^ ~((p => q) ^ (q => p)))")
(declare-const p Bool)
(declare-const q Bool)
(assert (and(or(=> p q)(=> q p)) (not(and(=> p q) (=> q p)))
(check-sat)
(get-model)
(assert (or (=> p q)(=> qp)))
(assert (not(and(=> p q) (=> q p)))
(check-sat)
(get-model)

Answer 1

你需要更多正确的括号。

(echo "((p => q) v (q => p)) ^ ~((p => q) ^ (q => p)))")
(declare-const p Bool)
(declare-const q Bool)
(assert (and(or(=> p q)(=> q p)) (not(and(=> p q) (=> q p)))))
(check-sat)

(get-model)
(assert (or (=> p q)(=> q p)))
(assert (not(and(=> p q) (=> q p))))
(check-sat)
(get-model)