tlaplus | TLC is an explicit state model checker for specifications written in TLA+. The TLA+Toolbox is an IDE | Authorization library

by tlaplus Java Version: v1.8.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | tlaplus Summary

tlaplus is a Java library typically used in Financial Services, Banks, Payments, Security, Authorization applications. tlaplus has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub.

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Support

tlaplus has a medium active ecosystem.

It has 2037 star(s) with 169 fork(s). There are 57 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 210 open issues and 490 have been closed. On average issues are closed in 217 days. There are 13 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of tlaplus is v1.8.0

Quality

tlaplus has no bugs reported.

Security

tlaplus has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

tlaplus is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

tlaplus releases are available to install and integrate.

Build file is available. You can build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed tlaplus and discovered the below as its top functions. This is intended to give you an instant insight into tlaplus implemented functionality, and help decide if they suit your requirements.

move to next state
Convert a Selector to a Node .
Main write comment method .
Create a human readable message based on an error code .
Evaluate an appl .
Helper method to write the body of the latex file .
Tokenize inner token .
Generate the init code .
Process the spec .
The document changed .

Get all kandi verified functions for this library.

tlaplus Key Features

No Key Features are available at this moment for tlaplus.

tlaplus Examples and Code Snippets

No Code Snippets are available at this moment for tlaplus.

Community Discussions

Trending Discussions on tlaplus

Specifying multiple steps using TLA+ (Temporal Logic of Actions)

Use module overloading to implement a hash function in TLA+

TLC cannot handle this conjunct of the spec

isPrime function with TLA+

QUESTION

Specifying multiple steps using TLA+ (Temporal Logic of Actions)

Asked 2019-Mar-02 at 00:33

Looking through here mostly shows simple examples of action specifications where you reference the next state using ', as in:

...

ANSWER

Answered 2019-Mar-02 at 00:33

TLA is designed that it considers only the current state and a successor state (or the whole behaviour). You can always split up multiple steps that depend on each other by introducing an explicit variable that tells you which assignments have already been done:

Source https://stackoverflow.com/questions/54945976

QUESTION

Use module overloading to implement a hash function in TLA+

Asked 2019-Feb-19 at 02:28

The module overloading mechanism is explained in the Tower of Hanoi sample here. It enables you to implement TLA+ operators in Java, for improved model-checking performance.

I've struggled for a while to define a useful hash function in TLA+ (no, the identity function does not work for my purposes) and am thinking module overloading might be the way to do it. The hash function would accept a TLA+ object (a record, for example) and use Java's hashCode() method on the object's string representation to deterministically derive its hash value. This value would be returned to the TLA+ spec.

Is this possible? What would the Java override code look like? Do any other module override code samples exist?

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ANSWER

Answered 2019-Feb-19 at 02:28

import tlc2.value.impl.IntValue;
import tlc2.value.impl.Value;

public class TLCHash {

    public static Value Hash(Value v) {
        return IntValue.gen(v.hashCode());
    }
}

Source https://stackoverflow.com/questions/53908653

QUESTION

TLC cannot handle this conjunct of the spec

Asked 2019-Feb-15 at 23:11

I have a TLA+ module, which, summarized, looks like this:

...

ANSWER

Answered 2019-Feb-15 at 23:11

The problem was with my use of \subseteq in Init, as answered here: \in works, while \subseteq gives a "identifier undefined" error

Source https://stackoverflow.com/questions/53423052

QUESTION

isPrime function with TLA+

Asked 2018-Dec-04 at 16:43

This question is about TLA+ using toolbox (https://github.com/tlaplus/tlaplus/releases) I haven't been able to find any tag about it. Sorry about that. This is why I only tagged with Primes. If I am missing something please be kind to add better tags or create the missing ones.

Here is the issue

There is a well known function and algorith for GCD. Here it is.

...

ANSWER

Answered 2018-Nov-18 at 02:36

There are many way to express the notion that an integer is prime, however your attempt says that an integer N is prime if there exists some integer k in 2..N for which the gcd(k,n) = 1 or gcd(k,n) = n. This is easily seen to be incorrect, as 4 is clearly composite but gcd(3,4) = 1. And, of course, for every N prime or not, gcd(N, N) = N.

I'm not sure about the rules for TLA+, but I had a quick read of some documentation and here's my try at IsPrime

Source https://stackoverflow.com/questions/53356535

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install tlaplus

You can download it from GitHub.
You can use tlaplus like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the tlaplus component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .