Fix `ImperativeCleanup` cleaning too much

epfl-lara / stainless

Verification framework and tool for higher-order Scala programs

https://epfl-lara.github.io/stainless/

Apache License 2.0

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Fix `ImperativeCleanup` cleaning too much #1500

Closed mario-bucev closed 4 months ago

mario-bucev commented 5 months ago

In some cases, ImperativeCleanup would eliminate unused bindings even though it should not (causing unsoundness as in the test case TupleCleanup).