[klee-dev] Timed-out solver queries

[Hooman]

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Dear Professor Cadar,

As you rightfully mentioned I am not sure that any of the queries 
time-out. However, I am also not sure if I should use all 
-use-query-log=solver:smt2 -min-query-time-to-log=20 
--max-solver-time=20 options or klee will report timed-out queries 
itself by default. (as -log-timed-out-queries option is true by 
default). I also appreciate to have a response for my second question.


Kind regards,

Hooman

On 2020-04-14 15:12, Cristian Cadar wrote:
> Hi Hooman,
>
> How do you know it is not working?  Are you sure there are queries 
> that time out?
>
> Best,
> Cristian
>
> On 14/04/2020 08:39, Hooman wrote:
>> Dear all,
>>
>> I have two questions and I will appreciate any help.
>>
>> 1- I am wondering how is it possible to find out the percentage of 
>> timed-out queries out of all queries sent to solver? I am aware of 
>> the -log-timed-out-queries option. but apparently it is not working. 
>> because it is by default enabled but in a long klee execution (2 
>> days) I don't see any logged timed-out queries. I also don't know 
>> where to look for it :) Moreover, I tried to combine 
>> -use-query-log=solver:smt2 -min-query-time-to-log=20 
>> --max-solver-time=20 options together to kind of trying to log 
>> queries which took more than 20 seconds but solver-queries.smt2 file 
>> is empty after a long run.
>>
>>
>> 2- How is it possible to associate a timed-out query with certain 
>> part of the code. So to understand what parts klee was not able to 
>> cover.
>>
>>
>> Thank you very much.
>>
>> Kind regards,
>>
>> Hooman
>>
>>
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