Java Team2 Benchmark1

FiTS (A Financial Transaction System) is a bare-bones system mocking the behaviour of a financial transaction system. It emulates a virtual banking system in which users may open accounts from which they may perform money transfers. For more information read the manual at [1]

Categories: Financial

Benchmark Data

The Trace Part

Please upload your Java program to the server and include the necessary information (see rules document) here

The Property Part

Informal Description

FiTS contains an object UserInfo that corresponds to a user. A user can be greylisted, blacklisted, or whitelisted.

Once greylisted, a user must perform at least three incoming transfers before being whitelisted.

Demonstration Traces

Satisfying Traces

• greylist(u); depositTo(u); depositTo(u); depositTo(u); whitelist(u);

• greylist(u'); depositTo(u); depositTo(u);

• depositTo(u); depositTo(u); greylist(u)

Violating Traces

• greylist(u); depositTo(u'); depositTo(u'); depositTo(u'); whitelist(u)

• depositTo(u); depositTo(u); depositTo(u); greylist(u'); whitelist(u)

• depositTo(u); depositTo(u); greylist(u); depositTo(u); depositTo(u); whitelist(u)

Formal Specification

As a formal specification we use regular expressions over traces, defining both an expression for a satisfying and a violating trace. Each of these events are defined with respect to an object u of type UserInfo (e.g. such that the event greylist refers to u being greylisted).

Regular Expression for satisfying traces:

    property foreach target (UserInfo u) matching{
       ((!greylist)* ; greylist ; ((!whitelist)* ; depositTo ; (!whitelist)* ; depositTo ;
       (!whitelist)* ; depositTo ; (!whitelist)*) ; whitelist )*
    }

Regular Expression for violating traces:

    property foreach target (UserInfo u) not matching{
        (?)* ; greylist ; ((!depositTo)* + (!depositTo)* ; depositTo ;
        (!depositTo)* + (!depositTo)* ; depositTo ; (!depositTo)*; depositTo; 
        (!depositTo)*) ; whitelist
    }

Clarification Requests

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