Documentation

Std.Tactic.BVDecide.Bitblast.BVExpr.Circuit.Impl.Operations.ShiftRight

This module contains the implementation of a bitblaster for BitVec.shiftRight. It distinguishes two cases:

  1. Shifting by a constant distance (trivial)
  2. Shifting by a symbolic BitVec distance (requires symbolic branches over the distance).
source
def Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRightConst {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : aig.ShiftTarget w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
def Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRightConst.go {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (input : aig.RefVec w) (distance curr : Nat) (hcurr : curr ≤ w) (s : aig.RefVec curr) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRightConst.go_le_size {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (distance : Nat) (input : aig.RefVec w) (curr : Nat) (hcurr : curr ≤ w) (s : aig.RefVec curr) :
aig.decls.size ≤ (go aig input distance curr hcurr s).aig.decls.size
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRightConst.go_decl_eq {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (distance : Nat) (input : aig.RefVec w) (curr : Nat) (hcurr : curr ≤ w) (s : aig.RefVec curr) (idx : Nat) (h1 : idx < aig.decls.size) (h2 : idx < (go aig input distance curr hcurr s).aig.decls.size) :
(go aig input distance curr hcurr s).aig.decls[idx] = aig.decls[idx]
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instance Std.Tactic.BVDecide.BVExpr.bitblast.instLawfulVecOperatorShiftTargetBlastShiftRightConst {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α Sat.AIG.ShiftTarget fun {len : Nat} => blastShiftRightConst
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def Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRightConst {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : aig.ShiftTarget w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
def Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRightConst.go {α : Type} [Hashable α] [DecidableEq α] {w : Nat} {aig : Sat.AIG α} (input : aig.RefVec w) (distance curr : Nat) (hcurr : curr ≤ w) (s : aig.RefVec curr) :
aig.RefVec w
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  • One or more equations did not get rendered due to their size.
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instance Std.Tactic.BVDecide.BVExpr.bitblast.instLawfulVecOperatorShiftTargetBlastArithShiftRightConst {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α Sat.AIG.ShiftTarget fun {len : Nat} => blastArithShiftRightConst
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structure Std.Tactic.BVDecide.BVExpr.bitblast.TwoPowShiftTarget {α : Type} [Hashable α] [DecidableEq α] (aig : Sat.AIG α) (w : Nat) :
Type
Instances For
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def Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight.twoPowShift {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : TwoPowShiftTarget aig w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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instance Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight.instLawfulVecOperatorTwoPowShiftTargetTwoPowShift {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α TwoPowShiftTarget fun {len : Nat} => twoPowShift
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def Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : aig.ArbitraryShiftTarget w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
def Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight.go {α : Type} [Hashable α] [DecidableEq α] {w n : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight.go_le_size {α : Type} [Hashable α] [DecidableEq α] {n w : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) :
aig.decls.size ≤ (go aig distance curr acc).aig.decls.size
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastShiftRight.go_decl_eq {α : Type} [Hashable α] [DecidableEq α] {n w : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) (idx : Nat) (h1 : idx < aig.decls.size) (h2 : idx < (go aig distance curr acc).aig.decls.size) :
(go aig distance curr acc).aig.decls[idx] = aig.decls[idx]
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instance Std.Tactic.BVDecide.BVExpr.bitblast.instLawfulVecOperatorArbitraryShiftTargetBlastShiftRight {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α Sat.AIG.ArbitraryShiftTarget fun {len : Nat} => blastShiftRight
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def Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight.twoPowShift {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : TwoPowShiftTarget aig w) :
Sat.AIG.RefVecEntry α w
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instance Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight.instLawfulVecOperatorTwoPowShiftTargetTwoPowShift {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α TwoPowShiftTarget fun {len : Nat} => twoPowShift
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def Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight {α : Type} [Hashable α] [DecidableEq α] {w : Nat} (aig : Sat.AIG α) (target : aig.ArbitraryShiftTarget w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
def Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight.go {α : Type} [Hashable α] [DecidableEq α] {w n : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) :
Sat.AIG.RefVecEntry α w
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  • One or more equations did not get rendered due to their size.
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight.go_le_size {α : Type} [Hashable α] [DecidableEq α] {n w : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) :
aig.decls.size ≤ (go aig distance curr acc).aig.decls.size
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@[irreducible]
theorem Std.Tactic.BVDecide.BVExpr.bitblast.blastArithShiftRight.go_decl_eq {α : Type} [Hashable α] [DecidableEq α] {n w : Nat} (aig : Sat.AIG α) (distance : aig.RefVec n) (curr : Nat) (acc : aig.RefVec w) (idx : Nat) (h1 : idx < aig.decls.size) (h2 : idx < (go aig distance curr acc).aig.decls.size) :
(go aig distance curr acc).aig.decls[idx] = aig.decls[idx]
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instance Std.Tactic.BVDecide.BVExpr.bitblast.instLawfulVecOperatorArbitraryShiftTargetBlastArithShiftRight {α : Type} [Hashable α] [DecidableEq α] :
Sat.AIG.LawfulVecOperator α Sat.AIG.ArbitraryShiftTarget fun {len : Nat} => blastArithShiftRight