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Enable cbmc-concurrency regression tests by default #4278

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Merged
merged 3 commits into from
Feb 26, 2019

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tautschnig
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For some reason we had not included these in our standard set of regression
tests, and sure enough they got out of sync and one actual regression happened.

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@tautschnig tautschnig self-assigned this Feb 25, 2019
@tautschnig tautschnig force-pushed the enable-concurrency-tests branch 2 times, most recently from 0f4916b to 4603c31 Compare February 25, 2019 17:38
@tautschnig tautschnig marked this pull request as ready for review February 25, 2019 17:38
@tautschnig tautschnig force-pushed the enable-concurrency-tests branch 2 times, most recently from 5c38005 to b581af3 Compare February 25, 2019 20:35
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✔️
Passed Diffblue compatibility checks (cbmc commit: b581af3).
Build URL: https://travis-ci.com/diffblue/test-gen/builds/102230249


ifeq ($(filter-out OSX MSVC,$(BUILD_ENV_)),)
# no POSIX threads on Windows
# for OSX we'd need sound handling of pointers in multi-threaded programs
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? Why is that concern particular to OSX?

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I believe the difference is whether pthreadt is a typedef for a pointer type or not, which varies from platform to platform.

For some reason we had not included these in our standard set of regression
tests, and sure enough they got out of sync and one actual regression happened.
Using it->code.set(ID_statement, ...) no longer suffices as it will not set
code.id(), which is ID_nil after initialisation. Thus any such instruction is
removed during goto-program cleanup.

Use the recently added APIs instead, which will ensure proper initialisation.
They all fail with "pointer handling for concurrency is unsound."
@tautschnig tautschnig force-pushed the enable-concurrency-tests branch from b581af3 to 78437a1 Compare February 26, 2019 11:36
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✔️
Passed Diffblue compatibility checks (cbmc commit: 78437a1).
Build URL: https://travis-ci.com/diffblue/test-gen/builds/102316841

@tautschnig tautschnig merged commit af7124f into diffblue:develop Feb 26, 2019
@tautschnig tautschnig deleted the enable-concurrency-tests branch February 26, 2019 12:24
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5 participants