aa54390c85
This PR makes it possible for `bv_decide` to tackle situations for its enum type preprocessing where the enums themselves are use in a dependently type context (for example inside of a `GetElem` body) and thus not trivially accessible to `simp` for rewriting. To do this we drop`GetElem` on `BitVec` as well as `dite` as early as possible in the pipeline.
24 lines
961 B
Text
24 lines
961 B
Text
import Std.Tactic.BVDecide
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open BitVec
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/--
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error: The SAT solver timed out while solving the problem.
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Consider increasing the timeout with the `timeout` config option.
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If solving your problem relies inherently on using associativity or commutativity, consider enabling the `acNf` config option.
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-/
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#guard_msgs in
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theorem timeout (x y z : BitVec 1024) : x - (y + z) = x - y - z := by
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bv_decide (config := { timeout := 1 })
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/--
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error: None of the hypotheses are in the supported BitVec fragment after applying preprocessing.
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There are three potential reasons for this:
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1. If you are using custom BitVec constructs simplify them to built-in ones.
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2. If your problem is using only built-in ones it might currently be out of reach.
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Consider expressing it in terms of different operations that are better supported.
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3. The original goal was reduced to False and is thus invalid.
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-/
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#guard_msgs in
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theorem no_hyps (x y : Nat) : x * y = y * x := by
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bv_decide
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