c7dec60428
This PR adds support for `UIntX` and `USize` in `bv_decide` by adding a preprocessor that turns them into `BitVec` of their corresponding size.
78 lines
1.7 KiB
Text
78 lines
1.7 KiB
Text
import Std.Tactic.BVDecide
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/-! UInt8 -/
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example (a b c : UInt8) (h1 : a < b) (h2 : b < c) : a < c := by
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bv_decide
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/--
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error: The prover found a counterexample, consider the following assignment:
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a.toBitVec = 0xff#8
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b.toBitVec = 0xff#8
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-/
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#guard_msgs in
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example (a b : UInt8) : a + b > a := by
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bv_decide
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/-! UInt16 -/
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example (a b c : UInt16) (h1 : a < b) (h2 : b < c) : a < c := by
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bv_decide
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/--
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error: The prover found a counterexample, consider the following assignment:
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a.toBitVec = 0xffff#16
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b.toBitVec = 0xffff#16
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-/
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#guard_msgs in
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example (a b : UInt16) : a + b > a := by
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bv_decide
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/-! UInt32 -/
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example (a b c : UInt32) (h1 : a < b) (h2 : b < c) : a < c := by
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bv_decide
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/--
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error: The prover found a counterexample, consider the following assignment:
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a.toBitVec = 0xffffffff#32
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b.toBitVec = 0xffffffff#32
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-/
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#guard_msgs in
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example (a b : UInt32) : a + b > a := by
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bv_decide
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/-! UInt64 -/
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example (a b c : UInt64) (h1 : a < b) (h2 : b < c) : a < c := by
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bv_decide
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/--
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error: The prover found a counterexample, consider the following assignment:
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a.toBitVec = 0xffffffffffffffff#64
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b.toBitVec = 0xffffffffffffffff#64
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-/
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#guard_msgs in
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example (a b : UInt64) : a + b > a := by
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bv_decide
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/-! USize -/
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example (a b c : USize) (h1 : a < b) (h2 : b < c) : a < c := by
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cases System.Platform.numBits_eq <;> bv_decide
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/--
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warning: Detected USize in the goal but no hypothesis about System.Platform.numBits, consider case splitting on System.Platform.numBits_eq
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---
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warning: declaration uses 'sorry'
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-/
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#guard_msgs in
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example (a b : USize) : a + b > a := by
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bv_normalize
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sorry
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example (h : 32 = System.Platform.numBits) (a b c : USize) (h1 : a < b) (h2 : b < c) : a < c := by
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bv_decide
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