Simulink Design Verifier: Fix Missing Coverage Issues

Resolving missing coverage using simulink design verifier and not by using simulink test

grans asked: 2021-09-14 coverage , simulink design ve...

Resolve missing code coverage in Simulink models! Learn how to use Simulink Design Verifier, instead of Simulink Test, to achieve complete coverage. Click here

Expert Answer

John Williams answered . 2025-07-14 13:53:45

Simulink Test will help you manage and construct a test-suite - I am not sure it will help you in achieving coverage on its own. For example, Simulink Test can help if you want to manually author test-case in additio to auto-generating test-cases from Simulink Design Verifier, or if you want to manage test-suites across multiple components (models/subsystems etc.), and automate test-execution, coverage measurement etc.

Have you tried identifying dead-logic in the state-chart? Are there "unsatisfiable" objectives in the chart? Have you analyzed the chart for design-errors?

Entering min-max values for inputs would make the formal analysis problem more tractable, it can convert some "undecided" objectives into "satisfied". But you do need to be careful that the ranges reflect the actual intended usage of the stateflow chart. If you over-constrain the ranges, some objectives in the chart may become unsatisfiable.

Could you also clarify the workflow you are using with cvt files? The cvt files save coverage data in a file, and by themselves would not help maximizing coverage.

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