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[<daparpon AT dsic.upv.es>]

Nope, it does not. I tried commenting the "require array-symbolic.k" clause
and I obtained other kompiling errors and warnings, specifically the following
ones:

[Warning] Compiler: Associativity attribute should only be assigned to binary
infix production.

        File: /Users/ELP/Documents/k/include/builtins/fol.k
        Location: (14,18,14,57)
        Compilation Phase: class org.kframework.compile.checks.CheckSyntaxDecl

[Warning] Compiler: Associativity attribute should only be assigned to binary
infix production.

        File: /Users/ELP/Documents/k/include/builtins/fol.k
        Location: (15,18,15,57)
        Compilation Phase: class org.kframework.compile.checks.CheckSyntaxDecl

[Error] Critical: Parse error: Syntax error near unexpected character 'y'
        File: /Users/ELP/Documents/k/include/builtins/smt.k
        Location: (17,16,17,16)

To be more precise, the line which the error refers to is:

rule Smtlib(symBool(I:Int)) => "var" +String Int2String(I)

and the location reference points to the 'y' in "symBool(I:Int)".

Daniel

--------------------------------------------------------------------------------------------------
2017-04-28 13:16 GMT+03:00 <andrei.arusoaie AT gmail.com>:

That's weird...
Anyway, I think you can comment the line which include array-symbolic.k from /
k/include/builtins/smt.k.
Does it work if you do that?


2017-04-28 13:12 GMT+03:00 <daparpon AT dsic.upv.es>:

    Hi! I tried to import the module you refer to (and insert the proper "
require
    "builtins/smt.k" " clause) in order to use the checkSat function in my
    language. However, when I kompile the resulting specification, I get the
    following error message:

    [Error] Critical: Could not find 'required' file: builtins/array-
symbolic.k
            File: <filepath to K>/k/include/builtins/smt.k
            Location: (4,1,4,35)

    I have looked for the "array-symbolic.k" file in both my file system and
    previous distributions of the K Framework, but I could not find it
anywhere.
    How can I solve this dependency and work with the "smt.k" file?

    Thanks in advance,
    Daniel

    From: Andrei Arusoaie <andrei.arusoaie AT gmail.com>
    Date: 2017-04-12 19:47 GMT+03:00
    Subject: Re: [[K-user] ] Calling SMT Solver from K specification
    To: daparpon AT dsic.upv.es


    Hi Daniel,

    If you’re using K-3.4 then you can take a look at k/include/builtins/
smt.k,
    specifically in module:

    module SMT-SYNTAX-HOOKS

      syntax SmtResponse ::= "sat"
                           | "unsat"
                   | "unknown"
                   | "model" "(" Map ")"

      syntax SmtResponse ::= "checkSat" "(" K ")" [function]
                           | "getModel" "(" K ")" [function]

      syntax Bool ::= SmtResponse "=/=" SmtResponse
            | SmtResponse "==" SmtResponse
    endmodule

    I think checkSat is what you’re looking for. Make sure you pass a Bool to
it.
    If you need more, you can extend the module to translate whatever exp to
    SMTLib as we implicitly did for ints and bools (check the entire smt.k
file
    for details).

    Andrei A.
    ​

    2017-04-12 17:07 GMT+03:00 <daparpon AT dsic.upv.es>:

        What I need to do is to compare two symbolic execution states, S1 and
S2,
        which respectively contain the path conditions PC1 and PC2. The
comparison
    is
        simply done by checking whether the implication PC1 => PC2 holds. For
        instance, this is a valid implication, where each ?vi is a symbolic
value

        (?v1 < ?v3 ^ ?v3 < ?v2) => (?v1 <= ?v2)

        Since path conditions are logical expressions involving symbolic data,
the
        implication cannot be solved by means of K's boolean operators but I
need
    to
        delegate this problem to a SAT/SMT Solver.

        How can I send the constraint to the SAT solver and get the solver
verdict
    in
        return?

        I am still using K 3.4 since I need to read the path-condition cell
during
        symbolic execution, while K 4.0 does not have this capability
available
    yet.

        Thanks a lot and sorry for the inconveniencies. Best regards,
        Daniel
        ________________________________________
        From:
        yzhng173 AT illinois.edu

        [yzhng173 AT illinois.edu]
        Sent: Tuesday, April 11, 2017 9:16 AM
        To:
        k-user AT lists.cs.illinois.edu
        Subject: RE: [[K-user] ] Calling SMT Solver from K specification

        Hi Daniel,

        The current Java backend is using Z3 in the symbolic execution engine
        internally and it is not exposed to the user. Could you please tell us
    more
        specifically about your use cases?

        Best,

        Yi
        ________________________________________
        From:
        daparpon AT dsic.upv.es

        [daparpon AT dsic.upv.es]
        Sent: Tuesday, April 11, 2017 4:01 AM
        To:
        k-user AT lists.cs.illinois.edu
        Subject: [[K-user] ] Calling SMT Solver from K specification

        Hi! I am implementing a part of my K language specification which
needs to
        check a boolean formula for satisfiability/validity. How can I do that
in
    K?
        Are there any built-in commands or terms that allow K rules to
communicate
        with an SMT Solver, for instance Z3? In that case, which are they (or
    where
        can I find more information about them)?

        Thanks in advance,
        Daniel