refactor: remove SymContext.h_sp?, replacing uses with the corresponding AxEffects field - #207
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) ### Description: Stacked on #207. When an write to memory or a write to a register that is not SP is made, we update the proof of stack alignment. When a write to SP is made, we create a new mvar with the proof obligation that the new value is aligned, and store that mvar in a new `sideConditions` field. ### Testing: What tests have been run? Did `make all` succeed for your changes? Was conformance testing successful on an Aarch64 machine? Yes ### License: By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. --------- Co-authored-by: Shilpi Goel <shigoel@gmail.com>
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…ep in `sym_n` (#213) ### Description: Stacked on: - [x] #204 - [x] #207 - [x] #209 - [x] #211 This PR implements "snorkeling" of the heartbeat budget. This unfortunately does not buy us much, as aggregation for 500 steps already seems to hit both the recursion limit and heartbeat budget, by itself. ### Testing: What tests have been run? Did `make all` succeed for your changes? Was conformance testing successful on an Aarch64 machine? Yes ### License: By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. --------- Co-authored-by: Shilpi Goel <shigoel@gmail.com>
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Description:
Benchmarks suggest this could be marginally slower than before (the SHA512_400 benchmark slowed down from 19.0 to 19.2 second, i.e., within noise levels).
Still, it's a good change to make, because it will make effect aggregation easier.
Testing:
What tests have been run? Did
make allsucceed for your changes? Wasconformance testing successful on an Aarch64 machine? Yes
License:
By submitting this pull request, I confirm that my contribution is
made under the terms of the Apache 2.0 license.