Is "run away" a durative verb?

[Sitifan]

1. The stray dog has run away from its master for a long time.
2. It has been a long time since the stray dog ran away from its master.
I think that #2 is correct. Is #1 also acceptable?
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Thank you very much for your reply.

[Mister Micawber]

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It seems odd if not wrong to me.

1a. The stray dog has been running away from its master for a long time.
1b. The stray dog has been away from its master for a long time.
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Native English teacher at Mister Micawber's

[Molly]

What does "for a long time" mean in your examples, MrM?

[Mister Micawber]

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17 weeks.
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Native English teacher at Mister Micawber's