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[Frama-c-discuss] Why does a string literal not satisfy valid_read_string?

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• Subject: [Frama-c-discuss] Why does a string literal not satisfy valid_read_string?
• From: rod at proteancode.com (Roderick Chapman)
• Date: Mon, 22 Jul 2019 11:04:32 +0100
• In-reply-to: <7b1af00b-e12a-d3f0-4479-1af11273f0a8@proteancode.com>
• References: <ddaabc8a-e9b9-3d2d-c73c-7bc89ef672e2@proteancode.com> <7b1af00b-e12a-d3f0-4479-1af11273f0a8@proteancode.com>

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On 18/07/2019 09:00, Roderick Chapman wrote:
>  I possibly silly question. The the code below - I get an unproved VC 
> for the precondition of the call to "d2".  So.. why is a string 
> literal not considered to satisfy "valid_read_string"?? I am using 
> Frama-C 19...

With a bit more experimenting, I find that a string literal satisifies 
"valid_read" but not "valid_read_string".  Can anyone please explain this?

  Thanks,

   Rod


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