Your browser does not support JavaScript! Skip to main content
Free 30-day trial DO-178C Handbook RapiCoupling Preview DO-178C Multicore Training Multicore Resources
Rapita Systems
 

Industry leading verification tools

Rapita Verification Suite (RVS)

RapiTest - Functional testing for critical software RapiCover - Low-overhead coverage analysis for critical software RapiTime - In-depth execution time analysis for critical software RapiTask - RTOS scheduling visualization RapiCoverZero - Zero-footprint coverage analysis RapitimeZero - Zero-footprint timing analysis RapiTaskZero - Zero-footprint event-level scheduling analysis RVS Qualification Kits - Tool qualification for DO-178 B/C and ISO 26262 projects RapiCoupling - DCCC analysis

Multicore Verification

MACH178 - Multicore Avionics Certification for High-integrity DO-178C projects MACH178 Foundations - Lay the groundwork for A(M)C 20-193 compliance Multicore Timing Solution - Solving the challenges of multicore timing analysis RapiDaemon - Analyze interference in multicore systems

Other

RTBx - The ultimate data logging solution Sim68020 - Simulation for the Motorola 68020 microprocessor

RVS Software Policy

Software licensing Product life cycle policy RVS Assurance issue policy RVS development roadmap

Industry leading verification services

Engineering Services

V&V Services Data Coupling & Control Coupling Object code verification Qualification Training Consultancy Tool Integration Support

Latest from Rapita HQ

Latest news

Rapita partners with Asterios Technologies to deliver solutions in multicore certification
SAIF Autonomy to use RVS to verify their groundbreaking AI platform
RVS 3.22 Launched
Hybrid electric pioneers, Ascendance, join Rapita Systems Trailblazer Partnership Program
View News

Latest from the Rapita blog

How emulation can reduce avionics verification costs: Sim68020
Multicore timing analysis: to instrument or not to instrument
How to certify multicore processors - what is everyone asking?
Data Coupling Basics in DO-178C
View Blog

Latest discovery pages

Military Drone Certifying Unmanned Aircraft Systems
control_tower DO-278A Guidance: Introduction to RTCA DO-278 approval
Picture of a car ISO 26262
DCCC Image Data Coupling & Control Coupling
View Discovery pages

Upcoming events

IEEE SMC-IT/SCC 2025
2025-07-28
DASC 2025
2025-09-14
DO-178C Multicore In-person Training (Fort Worth, TX)
2025-10-01
DO-178C Multicore In-person Training (Toulouse)
2025-11-04
View Events

Technical resources for industry professionals

Latest White papers

Mitigation of interference in multicore processors for A(M)C 20-193
Sysgo WP
Developing DO-178C and ED-12C-certifiable multicore software
DO178C Handbook
Efficient Verification Through the DO-178C Life Cycle
View White papers

Latest Videos

How to make AI safe in autonomous systems with SAIF
Rapita Systems - Safety Through Quality
Simulation for the Motorola 68020 microprocessor with Sim68020
AI-driven Requirements Traceability for Faster Testing and Certification
View Videos

Latest Case studies

GMV case study front cover
GMV verify ISO26262 automotive software with RVS
Kappa: Verifying Airborne Video Systems for Air-to-Air Refueling using RVS
Supporting DanLaw with unit testing and code coverage analysis for automotive software
View Case studies

Other Resources

 Webinars

 Brochures

 Product briefs

 Technical notes

 Research projects

 Multicore resources

Discover Rapita

Who we are

The company menu

  • About us
  • Customers
  • Distributors
  • Locations
  • Partners
  • Research projects
  • Contact us
  • Careers
  • Working at Rapita

Industries

  Civil Aviation (DO-178C)   Automotive (ISO 26262)   Military & Defense   Space

US office

+1 248-957-9801
info@rapitasystems.com Rapita Systems, Inc., 41131 Vincenti Ct., Novi, MI 48375, USA

UK office

+44 (0)1904 413945
info@rapitasystems.com Rapita Systems Ltd., Atlas House, Osbaldwick Link Road, York, YO10 3JB, UK

Spain office

+34 93 351 02 05
info@rapitasystems.com Rapita Systems S.L., Parc UPC, Edificio K2M, c/ Jordi Girona, 1-3, Barcelona 08034, Spain
Back to Top Contact Us

Automating test generation with AUTOSAC

Chris Bryan
2017-07-20

As anyone working with safety-critical software knows, testing is a costly process. DO-178 and ISO 26262 guidelines set standards for software quality assurance that require significant effort to meet. In the avionics software industry, it has been estimated that over 50% of the cost of overall development is spent on testing!

How much of this cost could be avoided if test requirements were written in a computer-parseable language so that tests can be generated automatically from them?

In January 2016 we partnered with Altran UK, Rolls-Royce and the Universty of Oxford to answer just that. In the 15-month NATEP-funded AUTOSAC project, we aimed to AUTOmate the generation of tests from Spark Ada Contracts.

During the project, we used SPARK pre- and post-conditions to define requirements. These replace typical natural-language requirements while, critically, remaining separate from the code itself. Here's an example requirement for a function that calculates the square root of a postive integer:

function Integer_Sqrt (P : Positive) return Positive
   with Pre  => P > 0,
        Post => (Integer_Sqrt'Result + 1) * (Integer_Sqrt'Result + 1) > M
                  and then (Integer_Sqrt'Result * Integer_Sqrt'Result) <= M;

We used requirements like this example to generate tests for real-world Ada code that can replace tests written manually. Using RapiTest, test generation was integrated into the workflow so tests could be easily generated, executed and reviewed. Also, by using the code coverage measurement and reporting capabilities of RapiCover, test results were reported clearly, allowing project partners to quickly identify coverage holes and potential problems in the requirements and implementation of the code.

Using the process in a real-world case study, we demonstrated that it produced robust tests and reduced the time and effort needed to test requirements, while still being independent of the code under test. You can find more information on the project in the final report.

Looking ahead, we will continue to work with Rolls-Royce, Altran, and the University of Oxford to develop automated test-generation solutions that reduce the time and cost of safety-critical software development. This development will take place in future research projects such as SECT-AIR, case-studies, and through direct commercial involvement.

If you would like to receive updates on RapiTest, make sure you are signed up to our mailing list.

DO-178C webinars

DO178C webinars

White papers

Mitigation of interference in multicore processors for A(M)C 20-193
Sysgo WP Developing DO-178C and ED-12C-certifiable multicore software
DO178C Handbook Efficient Verification Through the DO-178C Life Cycle
A Commercial Solution for Safety-Critical Multicore Timing Analysis

Related blog posts

Metrowerks CodeTest - How and why to upgrade

.
2021-02-01

Generating low level tests from system tests

.
2020-07-07

Race condition testing

.
2019-11-20

False positive and false negative in software testing

.
2019-05-22

Pagination

  • Current page 1
  • Page 2
  • Next page Next ›
  • Last page Last »
  • Solutions
    • Rapita Verification Suite
    • RapiTest
    • RapiCover
    • RapiTime
    • RapiTask
    • MACH178

    • Verification and Validation Services
    • Qualification
    • Training
    • Integration
  • Latest
  • Latest menu

    • News
    • Blog
    • Events
    • Videos
  • Downloads
  • Downloads menu

    • Brochures
    • Webinars
    • White Papers
    • Case Studies
    • Product briefs
    • Technical notes
    • Software licensing
  • Company
  • Company menu

    • About Rapita
    • Careers
    • Customers
    • Distributors
    • Industries
    • Locations
    • Partners
    • Research projects
    • Contact
  • Discover
    • Multicore Timing Analysis
    • Embedded Software Testing Tools
    • Worst Case Execution Time
    • WCET Tools
    • Code coverage for Ada, C & C++
    • MC/DC Coverage
    • Verifying additional code for DO-178C
    • Timing analysis (WCET) & Code coverage for MATLAB® Simulink®
    • Data Coupling & Control Coupling
    • Aerospace Software Testing
    • DO-178C
    • Meeting DO-178C Objectives
    • AC 20-193 and AMC 20-193
    • Meeting A(M)C 20-193 Objectives
    • Certifying eVTOL
    • Cerifying UAS

All materials © Rapita Systems Ltd. 2025 - All rights reserved | Privacy information | Trademark notice Subscribe to our newsletter