---
name: "murphi2smv"
section: "1"
platform: "linux"
package: "rumur"
version: "2025.02.02-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/murphi2smv"
---

# murphi2smv(1)

translate a Murphi model to SMV

## NAME

murphi2smv - translate a Murphi model to SMV

## SYNOPSIS

**murphi2smv \[--output *FILE* \| -o *FILE*\] *FILE***

## DESCRIPTION

The utility **murphi2smv** is bundled with the model checker Rumur and can be used to translate a Murphi model into the input format to the NuSMV model checker. See **[rumur(1)](/rumur/1.md)** for more information about Rumur or Murphi.

## OPTIONS

- **--help** or **-?**

  Display usage information.

**--numeric-type** \[**integer** \| **word**\] or **-n** \[**integer** \| **word**\]

Set the SMV type used for ranges, scalarsets and numeric literals. This can be either *integer* to use native integers or *word* to use bit-vectors. If this option is omitted, one is chosen automatically based on the content of the input model.

- **--output** *FILE* or **-o** *FILE*

  Set the path to write the output SMV model to. If this argument is omitted, output is written to standard out.

- **--quiet** or **-q**

  Silence warning diagnostics.

- **--verbose or -v**

  Report extra debugging information.

- **--version**

  Display version information and exit.

## NOTES

Translation to SMV is imprecise because the semantics of model execution in SMV are significantly different to Murphi. **murphi2smv** should not be expected to give you a ready-to-run SMV model. Rather it gives you an initial rough translation that you will need to edit to form a runnable model.

## LIMITATIONS

Murphi type declarations have no exact equivalent in SMV. These are handled by propagating and expanding them inline. This is done purely syntactically, which can lead to unexpected or incorrect results if your input model has symbols that shadow other symbols.

The following Murphi constructs have no equivalent in SMV and are emitted as a placeholder comment:

- •

  **alias** declarations

- •

  **alias** rules

- •

  **alias** statements

- •

  **assume**, **cover**, and **liveness** properties

- •

  **clear** statements

- •

  **error** statements

- •

  **exists** expressions

- •

  **for** loops

- •

  **forall** expressions

- •

  **function**s, **procedure**s, and calls to these

- •

  **if** statements

- •

  **isundefined** statements

- •

  **property** statements

- •

  quantifiers

- •

  **record** definitions

- •

  simple **rule**s

- •

  **ruleset**s

- •

  **switch** statements

- •

  **undefine** statements

- •

  **while** statements

You will need to either rephrase your input model to avoid these features or edit the generated SMV after generation.

Rumur supports integers up to 64-bit in width. SMV integers are only 32-bit. There are no checks that the numbers or calculations in the input model fit in 32-bit. This may result in constants or calculations in the generated SMV that overflow.

Murphi rule-local declarations and variables have no equivalent in SMV. These are emitted using SMV syntax but will need to be moved to a valid location within the SMV output.

## SEE ALSO

[rumur(1)](/rumur/1.md)

## AUTHOR

All comments, questions and complaints should be directed to Matthew Fernandez \<matthew.fernandez@gmail.com\>.

## LICENSE

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

For more information, please refer to \<http://unlicense.org\>