adfbc56f91
We trust that the users read the error messages or tactic docs to discover the option. AWS problems have shown that this can be too eager of an operation to do. Given that we have the luxury of interactivity let's go for an approach where the users can optionally enable it.
26 lines
891 B
Text
26 lines
891 B
Text
import Std.Tactic.BVDecide
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open BitVec
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set_option bv.ac_nf false
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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 `set_option sat.timeout <sec>`.
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If solving your problem relies inherently on using associativity or commutativity, consider enabling the `bv.ac_nf` option.
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-/
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#guard_msgs in
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set_option sat.timeout 1 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
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/--
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error: None of the hypotheses are in the supported BitVec fragment.
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There are two potential fixes 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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-/
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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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