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If the PDA does not stop on an accepting state and the stack is not empty, the string is:

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in Automata Theory by (51.1k points)
If the PDA does not stop on an accepting state and the stack is not empty, the string is:

(a) rejected

(b) goes into loop forever

(c) both (a) and (b)

(d) none of the mentioned

The question was asked by my school principal while I was bunking the class.

The query is from Deterministic PDA topic in portion Push Down Automata of Automata Theory

1 Answer

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Best answer
The correct answer is (a) rejected

To explain: To accept a string, PDA needs to halt at an accepting state and with a stack empty, else it is called rejected. Given a PDA M, we can construct a PDA M’ that accepts the same language as M, by both acceptance criteria.

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