Update to CBMC 5.7 #148
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Update to CBMC 5.7 #148
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viktormalik
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Proposal for how this should be merged: firstly merge the PR in CBMC, modify acbeed7 so that it points to a correct commit, squash this whole PR into 2 commits - one commit for the changes themselves and one for 2LS version update. Do you agree @peterschrammel or can you think of a better way to handle this? |
peterschrammel
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Mar 12, 2021
Yes, please. |
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Replace i2string with std::to_string. Adjust abstract domains: - In CBMC 5.7, abstract domains work slightly differently than they used to. Methods for creating top, bottom and entry must be implemented. Moreover, the first merge could have no effect resulting in the function not being entered due to changes in abstract interpretation implementation in CBMC. Replace dstring with dstringt. Replace deprecated gen_zero. Fix GOTO check options. Change graph to grapht. Add missing argument to goto_inlinet constructor call. Recompute locations after inlining. Adjust memsafety tests to new checks. Signed-off-by: František Nečas <[email protected]>
Signed-off-by: František Nečas <[email protected]>
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Following up on peterschrammel/cbmc#21 , adjusting 2LS to the changes in CBMC 5.7. I will squash the commits before this PR is merged to have an atomic compilable commit but leaving it as is (per type of change) to make reviewing easier. May also require changing the CBMC commit used once peterschrammel/cbmc#21 is merged.
Major changes
make_bottom,make_topandmake_entrymethods. The changes also required adjustingmergereturn value in our domains to make the analyses work correctly. The fix was inspired by Data-flow analysis must always enter new function cbmc#327