val efficient_lh_pc_relation (lpc_to_hpc: array_t nat) : GTot (relation_t nat nat)
val efficient_lh_pc_relation (lpc_to_hpc: array_t nat) : GTot (relation_t nat nat)
let efficient_lh_pc_relation (lpc_to_hpc: array_t nat) : GTot (relation_t nat nat) =
  fun lidx hidx -> array_nth lpc_to_hpc lidx = Some hidx
module Strategies.VarHiding.Efficient

open Armada.Action
open Armada.Base
open Armada.Init
open Armada.Memory
open Armada.Program
open Armada.State
open Armada.Statement
open Armada.Thread
open Armada.Threads
open Armada.Transition
open Armada.Type
open Spec.Behavior
open Spec.List
open Spec.Logic
open Spec.Ubool
open Strategies.ArmadaStatement.Propagate
open Strategies.ArmadaStatement.ThreadState
open Strategies.Atomic
open Strategies.Breaking
open Strategies.GlobalVars
open Strategies.GlobalVars.Permanent
open Strategies.GlobalVars.Statement
open Strategies.GlobalVars.VarHiding
open Strategies.GlobalVars.VarIntro
open Strategies.Invariant
open Strategies.Invariant.Armada.AtomicSubstep
open Strategies.Nonyielding
open Strategies.PCIndices
open Strategies.Semantics
open Strategies.Semantics.Armada
open Strategies.VarHiding.Defs
open Util.ImmutableArray
open Util.List
open Util.Nth
open Util.Range
open Util.Relation

let efficient_program_inits_match_except_global_variables
  (vs: list var_id_t)
  (lpcs: array_t pc_t)
  (hpcs: array_t pc_t)
  (lpc_to_hpc: array_t nat)
  (which_initializers_are_hidings: list bool)
  (lprog: Armada.Program.t)
  (hprog: Armada.Program.t)
  (lprog_main_start_pc: nat)
  (hprog_main_start_pc: nat)
  : GTot ubool =
    lprog.main_method_id = hprog.main_method_id
  /\ array_nth lpc_to_hpc lprog_main_start_pc = Some hprog_main_start_pc
  /\ array_nth lpcs lprog_main_start_pc = Some lprog.main_start_pc
  /\ array_nth hpcs hprog_main_start_pc = Some hprog.main_start_pc
  /\ initializers_match_except_global_variables vs which_initializers_are_hidings
       lprog.global_initializers hprog.global_initializers
  /\ lprog.main_stack_initializers == hprog.main_stack_initializers

let efficient_lpc_to_hpc_contains_valid_indices
  (num_hpcs: nat)
  (lpc_to_hpc: array_t nat)
  : GTot bool =
  for_all_array (fun (hidx: nat) -> hidx < num_hpcs) lpc_to_hpc
/
Util.Relation.fst.checked Util.Range.fsti.checked Util.Nth.fst.checked Util.List.fst.checked Util.ImmutableArray.fsti.checked Strategies.VarHiding.Defs.fst.checked Strategies.Semantics.Armada.fsti.checked Strategies.Semantics.fst.checked Strategies.PCIndices.fst.checked Strategies.Nonyielding.fst.checked Strategies.Invariant.Armada.AtomicSubstep.fsti.checked Strategies.Invariant.fsti.checked Strategies.GlobalVars.VarIntro.fsti.checked Strategies.GlobalVars.VarHiding.fsti.checked Strategies.GlobalVars.Statement.fsti.checked Strategies.GlobalVars.Permanent.fst.checked Strategies.GlobalVars.fst.checked Strategies.Breaking.fst.checked Strategies.Atomic.fst.checked Strategies.ArmadaStatement.ThreadState.fst.checked Strategies.ArmadaStatement.Propagate.fst.checked Spec.Ubool.fst.checked Spec.Logic.fst.checked Spec.List.fst.checked Spec.Behavior.fst.checked prims.fst.checked FStar.Pervasives.Native.fst.checked FStar.Pervasives.fsti.checked Armada.Type.fst.checked Armada.Transition.fst.checked Armada.Threads.fst.checked Armada.Thread.fst.checked Armada.Statement.fst.checked Armada.State.fst.checked Armada.Program.fst.checked Armada.Memory.fst.checked Armada.Init.fst.checked Armada.Base.fst.checked Armada.Action.fst.checked
Strategies.VarHiding.Efficient.fsti
lpc_to_hpc: Util.ImmutableArray.array_t Prims.nat
  -> Prims.GTot (Util.Relation.relation_t Prims.nat Prims.nat)
Util.ImmutableArray.array_t Prims.nat Prims.op_Equality FStar.Pervasives.Native.option Util.ImmutableArray.array_nth FStar.Pervasives.Native.Some Prims.bool Util.Relation.relation_t
let efficient_lh_pc_relation (lpc_to_hpc: array_t nat) : GTot (relation_t nat nat) =
  
fun lidx hidx -> array_nth lpc_to_hpc lidx = Some hidx