Disable SV-COMP syntactic loop unrolling #1402
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5 tasks
This is under the assumption that the same behavior can be achieved there, which is not a given, e.g., vis-a-vis automatic detection of widening points or the termination analysis. |
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This is cherry-picked from #1372 in preparation for it to get merged: #1372 (comment).
I benchmarked the equivalent change at be3ee1d: https://goblint.cs.ut.ee/results/158-rm-loop-unroll-after/table-generator-cmp.diff.html. This costs us ~100 tasks, mostly from nla-digbench-scaling/_unwindbound and product-lines/elevator_spec.
The actual delta is that we lose ~130 true verdicts, but also gain ~30 true verdicts (from cases where unrolling causes excessive resource usage).
The nightly BenchExec run will give a more up-to-date comparison, but I don't expect it to be different since nothing notable has been changed in SV-COMP analyses in this time.
To get this back, we'll have to finalize #1370 for SV-COMP 2025.