Re: [tlaplus] Automatically checking for different model constants

[Markus Kuppe <tlaplus-google-group@xxxxxxxxxxx>]

Hi Vahab,

chapter v06 [1] of my TLA+ tutorial shows how to do this for this very problem for safety checking.  Chapter v30 [2] outlines in the light of liveness checking.

Markus

[1] https://github.com/lemmy/BlockingQueue/commit/e49a31a9c96fca5ad4ba1c8c419cd472a2857301
[2] 
https://github.com/lemmy/BlockingQueue/commit/be16c92d5eba45a3be6f0ab508338637cb1f46e5

> On Apr 19, 2022, at 7:03 AM, Vahab Jabrayilov <vahabfuad@xxxxxxxxx> wrote:
> 
> Hi everyone,
> 
> I am into learning TLA+ and implemented a well-known Cosumer and Producer problem. 
> 
> When I test for deadlock model didn't get find any for the set of model constants I provided.
> But when we discuss with my advisor, found out a deadlock for a specific set of constant values(e.g 1 producer, 2 consumer with buffer size of 1). My question is,
> 
> Is there any way of automatically checking for different values of model constants ? How can I truly find out that model is deadlock free for all kind of model constants ?
> 
> Link to the specification : https://gist.github.com/vjabrayilov/aa446420ea5bfb3c6147a80d5223149f
> 
> All the best,
> Vahab
> 
> 
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