derek.holloway
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This directory contains formal models of Implib.so algorithm which should help with verification.
Initialization
This is a model of Implib.so initialization logic with -DIMPLIB_EXPORT_SHIMS
and is based on arch/common/init.c.tpl.
The model is implemented in two flavors: Promela and TLA+ (I have no idea why I didn't use PlusCal).
To verify TLA+ model
- download tla2tools.jar from https://github.com/tlaplus/tlaplus
- execute
$ rm -rf states
$ java -jar ./tla2tools.jar -workers $(nproc) Init.tla
(add -coverage 1 for coverage stats).
To verify Promela model
- install spin (via
sudo apt install spin) - execute
$ spin -run -ltl never_0 Init.pml
$ spin -run -ltl Prop Init.pml
Errors can be examined via
$ spin -p -t Init.pml
TODO:
- try other langs (Alloy, SMV, B)
- integrate TLA model with Apalache