All RVS tools include a friendly user-interface that presents your data in both tabular and graphical formats. Using this interface, you can filter your results to zoom in on target functions, making it easy to find the information you are looking for.

RapiTime includes charts designed to help you easily understand your data:

• Its Treemaps provide a high-level overview of your code base and help you understand the timing behavior of your code at a glance.
• Its Invocation Timeline and Aggregate Profile Charts let you visualize your results in of your code's call tree, identify the calls with the highest execution times, and investigate specific timing events more easily.

You can view RapiTime and RapiTime^Zero results in continuous integration software, allowing you to track your verification results over time.

RVS tools are designed to handle very large code bases. Because of the efficient algorithms used by RVS tools, there is no fundamental limitation to the number of lines of code that RVS can process, and our RVS tools have been used on projects with millions of lines of code.

We offer both “Node-locked” and “Floating” licenses, and a license server to support use of our tools in your specific development environment. 

For more information on our licensing models, see our RVS licensing FAQs.

All RVS licenses include access to our dedicated in-house support team, who will work with you to provide a rapid fix to your issue. This is a critical part of our vision. During 2021, we resolved 63% of our support requests within 7 working days and 93% within 30 working days. We also inform our customers of known issues via our website and email.

We provide an extensive set of RVS documentation with each of our products, and offer training courses guiding you through the most effective use of RVS tools. All our users can benefit from privileged access to our website, which includes downloads for new product releases. 

RapiTime^Zero is an execution time analysis tool that requires no project source code or modification of the development environment being used. To extract execution time information, RapiTime^Zero analyzes branch trace information collected from a compatible target or data collection mechanism.

As part of the RVS toolsuite, it forms part of a software verification solution that also includes tools for structural coverage analysis and functional testing.

RapiTime^Zero uses two types of inputs from which to analyze software execution times. The first is the executable file and a disassembly of it, and the second is a branch trace collected while the program under analysis is executed. From these inputs, RapiTime^Zero can understand both the program structure and the events that occurred during the program execution, allowing it to perform execution time analysis and produce execution time results.

RapiTime^Zero collects and reports data on your code’s worst-case-execution time, high water mark path, and reports minimum, average and maximum execution times for each test.

As with all RVS tools, RapiTime^Zero supports data collection on multicore architectures. To analyze the timing behavior of multicore architectures, RapiTime^Zero simply needs to know which branches corresponded to which core during program execution. This information can either be inferred by providing an individual branch trace for each core, or a combined trace that includes information on the core on which each branch was taken.

RapiTime^Zero includes a Rewind Trace utility, which lets you step through the events that occurred during program execution like you can with a debugger. This lets you set breakpoints and easily analyze the execution of your program.

As RapiTime^Zero analyzes object code directly to produce results, it supports any language that targets machine code.

You can request a trial version of RVS, which includes RapiTime^Zero. You can also arrange a demonstration, where a member of our team will work with you to show the benefits that RapiTime^Zero can offer you.

Software analysis by zero-footprint RVS tools has the following requirements:

• The platform (target and any external devices e.g. debuggers) must be capable of producing a branch trace without gaps to ensure that the full program trace can be reconstructed.
• The OS needs to make context switches observable. For some systems, supporting this may require modifications to be made to the OS.
• A Platform Support Package (PSP) is needed for RVS to interface with the platform, including the target hardware and trace capture mechanisms, in order to convert the branch trace into a format that the RVS tool understands and disassemble the executable and parse the resulting object code. PSPs are developed to be compatible with four components of the platform: Compilers, Instruction sets, Branch traces and Real-time operating systems.

For more information on the requirements for software analysis by zero-footprint RVS tools and a list of currently supported platforms, see our Platform support page.

For more detailed information on the requirements, see our Technical note.

If your source code is available, yes. By importing your source code and debug symbols into your RVS project, you can view your results in the context of both your object and source code, and trace between them.

RVS integrates with a range of continuous integration tools, allowing you to collect unit test, coverage and execution time results with every new build, track your verification progress over time and easily identify anomalies in your software's behavior as they are introduced.

RapiTest, RapiCover and RapiTime (including zero-footprint versions) include custom plugins to integrate with Jenkins and Bamboo. RapiTest and RapiCover results can also be displayed in a range of other continuous integration tools through the JUnit and Cobertura plugins, which are compatible with most continuous integration software. 

The Rapita Verification Suite (RVS) has been used in the critical embedded industry for over 15 years and supported a number of avionics projects globally. Qualification kits for qualified RVS products have supported more than 20 DO-178B and C certification projects up to and including DAL A.

In general, statistical modeling approaches are not applicable to timing analysis of software as software timing behavior does not fit standard statistical assumptions.

In some cases, software timing behavior may fit standard statistical assumptions, but this is the exception rather than the rule and must be proven before relying on results from statistical modeling.

Floating RVS licenses follow an “Enterprise” model. You can use them across geographical boundaries*, in different projects, with different users, and share them with suppliers working on the same project.

^*Some floating licenses may be restricted to use within a specific geographical region. Where this is the case, this is agreed before licenses are issued.

Platform Support Packages are required to support software analysis by zero-footprint RVS tools. They interface between the tools and the platform in order to do the following:

• Convert the specific format of native branch traces generated by the platform into a format that the RVS tool understands and can use for subsequent analysis.
• Disassemble the object code to understand the structure and control flow of the code so this can be used for subsequent analysis.

Each PSP is designed to support various components of a platform. These include:

• The compiler(s) used to generate executables
• The instruction set of object code to be analyzed
• The native branch trace format generated from the platform – this depends on the mechanism used to generate branch traces, which may be the target hardware (or simulator) or a third-party device e.g. debugger.
• The real-time operating system.

Different PSPs are needed to support analysis by zero-footprint RVS tools when any of the above items are different between two platforms. For more information on how PSPs support analysis by zero-footprint RVS tools, see our Requirements for zero-footprint RVS analysis Technical note.

To see whether we have already developed PSPs compatible with the components on your platform, see our zero-footprint Platform support.

If we have not yet developed PSPs compatible with one or more components of your platform, we may be able to develop them. For more information, contact us at info@rapitasystems.com.

Check PSP compatibility

Yes, you can create and manage groups of users for your floating RVS licenses. You can restrict each group to only serve licenses to specific hostnames or IP addresses. This allows you to reserve licenses for specific groups or specific purposes such as supporting the use of RVS on a continuous integration server.

Any licenses that you don’t reserve will remain available as floating licenses that can be shared among different users and geographic locations.

RVS supports the analysis of shared code compiled by build systems with multiple executables by letting you specify the source files that will be compiled in each executable. 

If you have functions that are declared in multiple components with the same name but have different definitions, RVS can treat each such function uniquely, for example to provide separate coverage in RapiCover and separate execution time results in RapiTime.

RVS analyzes the structure of your code and presents information on your code’s structure, helping you understand your code and its dependencies in a variety of forms such as the following:

• RVS analyzes the McCabe complexity of your code and presents the complexity of each code element, letting you easily identify code with high complexity. 
• RVS Treemaps present the hierarchy of your code’s components and source files graphically.
• RVS lets you view and explore the call dependencies in your code.  

RapiTime^Zero lets you merge timing results from different test runs into a single report. This supports the collection of timing data from multiple test campaigns, and lets you merge results from different builds, for example system test and low-level test builds, so long as the functions under test are identical.

RVS supports meeting standards and guidelines for verification of mission and safety-critical applications including:

• Civil aerospace software guidelines DO-178C (ED-12C), DO-278A (ED-109), AC 20-193 & AMC 20-193
• Military & defense aerospace standards MIL-HDBK-516C, AA-22-01 AMACC, EMACC, ADSM, Def Stan 00-55 & Def Stan 00-56
• Automotive standard ISO 26262
• Space software standards NASA NPR 7150.2D, ECSS-E-ST-40C
• Other standards based on IEC 61508, including IEC 62279, EN50128 & EN 50657 (rail), IEC 61511 (industrial processes), IEC 61513 (power), IEC 60880 (nuclear) & IEC 62061 (machinery)

Both RapiTime and RapiTime^Zero support on-target worst-case execution time analysis for critical software. 

Depending on your project and needs, one or both solutions may be better for you. Consult the table below to determine which is best for your project.

RapiTime Zero can help you meet DO-178C objective 6.3.4.f, which calls for evidence that “Source code is accurate and consistent”, including worst-case execution time analysis.

It can also help you meet DO-178C objective 6.3.3.f “Software partitioning integrity is confirmed” by letting you measure the impact of deliberate attempts to breach partitioning on your software’s timing behavior.

As RapiTime Zero is designed for on-target execution, it also helps you achieve DO-178C objective 6.4.e.

For a detailed description of how RVS tools including RapiTime Zero can help you achieve DO-178C certification, see our web page on how to achieve DO-178C certification.

RapiCover Zero can help you meet DO-178C objective 6.4.4.c, which indicates that structural coverage analysis is performed on the software based on requirements-based tests of its behavior. RapiCover Zero supports structural coverage analysis at the statement and decision levels. Since Modified Condition/Decision Coverage examines source-level decisions, it can only be measured on object code in very limited circumstances. Instead, we recommend using RapiCover for full support of all MC/DC source code analysis.

RapiCover Zero justifications help you with DO-178C “structural coverage resolution” by letting you mark coverage holes as justified or covered by analysis.

As RapiCover Zero is designed to collect results from tests run on-target, it also helps you achieve DO-178C objective 6.4.e.

RapiCover Zero (together with RapiCover) can also support meeting the “additional code verification” part of DO-178C objective 6.4.4.c for DAL A software, which indicates that evidence is available for the correctness of additional code introduced by the compiler. 

For a detailed description of how RVS tools including RapiCover Zero can help you achieve DO-178C certification, see our web page on how to achieve DO-178C certification.