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 & services

Rapita Verification Suite (RVS)

  RapiTest - Unit/system testing  RapiCover - Structural coverage analysis  RapiTime - Timing analysis (inc. WCET)  RapiTask - Scheduling visualization  RapiCoverZero - Zero footprint coverage analysis  RapiTimeZero - Zero footprint timing analysis  RapiTaskZero - Zero footprint scheduling analysis  RapiCouplingPreview - DCCC analysis

Multicore Verification

  MACH178  MACH178 Foundations  Multicore Timing Solution  RapiDaemons

Engineering Services

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

Industries

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

Other

RTBx Mx-Suite Software licensing Product life cycle policy RVS Assurance issue policy RVS development roadmap

Latest from Rapita HQ

Latest news

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
Magline joins Rapita Trailblazer Partnership Program to support DO-178 Certification
View News

Latest from the Rapita blog

How to certify multicore processors - what is everyone asking?
Data Coupling Basics in DO-178C
Control Coupling Basics in DO-178C
Components in Data Coupling and Control Coupling
View Blog

Latest discovery pages

control_tower DO-278A Guidance: Introduction to RTCA DO-278 approval
Picture of a car ISO 26262
DCCC Image Data Coupling & Control Coupling
Additional Coe verification thumb Verifying additional code for DO-178C
View Discovery pages

Upcoming events

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
HISC 2025
2025-11-13
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

Rapita Systems - Safety Through Quality
Simulation for the Motorola 68020 microprocessor with Sim68020
AI-driven Requirements Traceability for Faster Testing and Certification
Multicore software verification with RVS 3.22
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

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

Working at Rapita

Careers

Careers menu

  • Current opportunities & application process
  • Working at Rapita
Back to Top Contact Us

Automating test generation with AUTOSAC

Breadcrumb

  1. Home
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
    • Automotive Software Testing
    • Certifying eVTOL
    • DO-178C
    • AC 20-193 and AMC 20-193
    • ISO 26262
    • What is CAST-32A?

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