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Add lean source and binary files (part 61)
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import Mathlib
import OAI.Computability.DirectedFeedback.Encoding.EmitRows
namespace OAI
namespace DFVSGames.Foundations.PCP.AlphabetTable.Body
open Turing
open DFVSGames.Foundations.Complexity
open RuntimeModel
variable {q : Nat}
def bodyTime (q N : Nat) : Nat :=
(32 + 8 * (Enumeration.localCount q * (6 * (2 * 4104)))) * (N + 1)
structure RowStepResult (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) (oldRelation : GenericGraphTables.RelationTable q)
(oldFlag : Bool) where
tapes : Tape → List Bool
ready : LoopState.Ready input (e.val + 1) tapes
run : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .guard, normal oldRelation oldFlag, base⟩
(some ⟨some .guard, CompareLoop.rowState input e, tapes⟩)
(bodyTime q (LoopState.inputBits input).length)
def guardTapes (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) : Tape → List Bool :=
Function.update base .counter (encodeWord (input.darts - (e.val + 1)))
def parsedTapes (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) : Tape → List Bool :=
Lookup.readRowTapes .cursor .tail .reverseIndex (guardTapes input e base)
input.rows[e] (LoopState.cursorBits input (e.val + 1))
def workingTapes (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) : Tape → List Bool :=
Lookup.headLookupTapes headPorts (parsedTapes input e base) input e
def emittedTapes (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) : Tape → List Bool :=
Emitter.resultTapes .reversed (workingTapes input e base)
(encodeWords (EmitRows.blockWords input e))
def clearFieldsTapes (base : Tape → List Bool) : Tape → List Bool :=
Function.update (Function.update (Function.update base .tail []) .reverseIndex []) .head []
def resultTapes (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) : Tape → List Bool :=
Function.update (clearFieldsTapes (emittedTapes input e base)) .edge
(encodeWord (e.val + 1))
private theorem workingTapes_other_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) (other : Tape)
(hcounter : other ≠ .counter) (hcursor : other ≠ .cursor)
(htail : other ≠ .tail) (hreverse : other ≠ .reverseIndex)
(hscan : other ≠ .scan) (hindex : other ≠ .indexScan) (hhead : other ≠ .head) :
workingTapes input e base other = base other := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes, guardTapes, hcounter, hcursor, htail,
hreverse, hscan, hindex, hhead]
private theorem workingTapes_counter_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) :
workingTapes input e base .counter = encodeWord (input.darts - (e.val + 1)) := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes, guardTapes]
private theorem workingTapes_cursor_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) :
workingTapes input e base .cursor = LoopState.cursorBits input (e.val + 1) := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes]
private theorem workingTapes_tail_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) :
workingTapes input e base .tail = encodeWord input.rows[e].tail.val := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes]
private theorem workingTapes_reverse_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) :
workingTapes input e base .reverseIndex = encodeWord input.rows[e].reverseIndex.val := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes]
private theorem workingTapes_head_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) (base : Tape → List Bool) :
workingTapes input e base .head =
encodeWord input.rows[input.rows[e].reverseIndex].tail.val := by
simp [workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
Lookup.headValue, Lookup.headIndex]
def clearFieldsInTime (base : Tape → List Bool) (ambient : Ambient q) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some (.clearField 0), (ambient, none), base⟩
(some ⟨some .increment, (ambient, none), clearFieldsTapes base⟩)
((base .tail).length + (base .reverseIndex).length + (base .head).length + 3) := by
let first := MachineDrain.drainInTime Tape.tail (Driver.Label.clearField 0)
(some (.clearField 1)) (Driver.program q) (by rfl) base ambient none
let second := MachineDrain.drainInTime Tape.reverseIndex (Driver.Label.clearField 1)
(some (.clearField 2)) (Driver.program q) (by rfl)
(Function.update base .tail []) ambient none
let third := MachineDrain.drainInTime Tape.head (Driver.Label.clearField 2)
(some .increment) (Driver.program q) (by rfl)
(Function.update (Function.update base .tail []) .reverseIndex []) ambient none
let firstTwo := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ first second
let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ firstTwo third
refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
have h := run.steps_le_m
simp only [Function.update_of_ne (by decide : Tape.reverseIndex ≠ .tail),
Function.update_of_ne (by decide : Tape.head ≠ .reverseIndex),
Function.update_of_ne (by decide : Tape.head ≠ .tail)] at h
omega
def incrementInTime (base : Tape → List Bool) (ambient : Ambient q)
(e : Nat) (he : base .edge = encodeWord e) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .increment, (ambient, none), base⟩
(some ⟨some .guard, (ambient, none), Function.update base .edge (encodeWord (e + 1))⟩)
1 where
steps := 1
evals_in_steps := by
change some (TM2.stepAux (nextRow (Driver.Label.guard : Driver.Label q))
(ambient, none) base) = _
simpa only [List.append_nil] using congrArg some
(stepAux_nextRow (Driver.Label.guard : Driver.Label q) (ambient, none) base e []
(by simpa only [List.append_nil] using he))
steps_le_m := Nat.le_refl _
private theorem emitterView_at_inline_Body (label :
Emitter.Label (Driver.rowPlan q).length (Addresses.fieldBound q)) :
(MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q).symm
(Driver.program q)) (.emit label) =
Emitter.statement (Emitter.listCommands (Driver.rowPlan q)) rowSources
Tape.scratch Tape.reversed Driver.Label.emit (some (.clearField 0)) label := by
change MachineControl.statement id (emitterEquiv q).symm
(MachineControl.statement id (emitterEquiv q) _) = _
exact MachineFieldProfile.statement_roundtrip (emitterEquiv q).symm _
private theorem context_rowState_inline_Body (input : GenericGraphTables.Table q)
(e : Fin input.darts) :
context (CompareLoop.rowState input e).1 = EmitRows.rowContext input e := by
change (input.rows[e].relation,
decide (input.rows[e].tail.val = input.rows[input.rows[e].reverseIndex].tail.val)) =
(input.rows[e].relation,
decide (input.rows[e].tail = input.rows[input.rows[e].reverseIndex].tail))
simp only [Fin.val_inj]
def emitInTime (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool)
(operands : ∀ i, base (rowSources i) = encodeWord (EmitRows.rowValues input e i))
(scratchEmpty : base .scratch = []) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some (Driver.rowEntry q), CompareLoop.rowState input e, base⟩
(some ⟨some (.clearField 0), CompareLoop.rowState input e,
Emitter.resultTapes .reversed base (encodeWords (EmitRows.blockWords input e))⟩)
(Enumeration.localCount q * (6 * (2 * 4104)) *
(3 * ((LoopState.inputBits input).length + 1) + 3) + 1) := by
let view := MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q).symm
(Driver.program q)
have sourceScratch : ∀ i : Fin 5, rowSources i ≠ Tape.scratch := by
intro i; fin_cases i <;> decide
have sourceOutput : ∀ i : Fin 5, rowSources i ≠ Tape.reversed := by
intro i; fin_cases i <;> decide
have bounded : ∀ i, EmitRows.rowValues input e i ≤ (LoopState.inputBits input).length := by
have hn := GenericGraphTables.vertices_le_tableBits_length input
have hm := GenericGraphTables.darts_le_tableBits_length input
have he := e.isLt
have ht := input.rows[e].tail.isLt
have hh := input.rows[input.rows[e].reverseIndex].tail.isLt
intro i
fin_cases i <;> simp [EmitRows.rowValues, Addresses.values, LoopState.inputBits] <;> omega
have run := EmitRows.blockInTimeAmbient input e (@context q)
(CompareLoop.rowState input e).1 (context_rowState_inline_Body input e)
rowSources Tape.scratch Tape.reversed sourceScratch sourceOutput (by decide)
Driver.Label.emit (some (.clearField 0)) view emitterView_at_inline_Body base operands
scratchEmpty (LoopState.inputBits input).length bounded
have restored : MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q) view =
Driver.program q := by
funext label
exact MachineFieldProfile.statement_roundtrip (emitterEquiv q) (Driver.program q label)
have transported := transportInTime (emitterEquiv q) view run
rw [restored] at transported
simpa [MachineControl.configuration, emitterEquiv, Option.map_some, id_eq,
Driver.rowEntry, Driver.rowPlan, CompareLoop.rowState, normal] using transported
private theorem result_ready_inline_Body (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) (ready : LoopState.Ready input e.val base) :
LoopState.Ready input (e.val + 1) (resultTapes input e base) := by
constructor
· exact Nat.succ_le_of_lt e.isLt
all_goals simp [resultTapes, clearFieldsTapes, emittedTapes, Emitter.resultTapes,
workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes, guardTapes, ready.original, ready.vertices,
ready.darts, ready.scratch, ready.compareLeft, ready.compareRight, ready.output,
ready.reversed, LoopState.prefixBits_reverse_succ input e.val e.isLt]
private theorem workingOperands_inline_Body (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) (ready : LoopState.Ready input e.val base) :
∀ i, workingTapes input e base (rowSources i) =
encodeWord (EmitRows.rowValues input e i) := by
intro i
fin_cases i <;> simp [rowSources, EmitRows.rowValues, Addresses.values,
workingTapes, Lookup.headLookupTapes, MachineLookup.tapes, headPorts,
parsedTapes, Lookup.readRowTapes, guardTapes, Lookup.headValue, Lookup.headIndex,
ready.vertices, ready.darts, ready.edge]
def rowStep (input : GenericGraphTables.Table q) (e : Fin input.darts)
(base : Tape → List Bool) (ready : LoopState.Ready input e.val base)
(oldRelation : GenericGraphTables.RelationTable q) (oldFlag : Bool) :
RowStepResult input e base oldRelation oldFlag := by
let N := (LoopState.inputBits input).length
have guarded : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .guard, normal oldRelation oldFlag, base⟩
(some ⟨some .tailStart, normal oldRelation oldFlag, guardTapes input e base⟩) 1 := by
have hbase : MachineUnaryCounter.counterTapes .counter base
(input.darts - (e.val + 1) + 1) [] = base := by
simp only [MachineUnaryCounter.counterTapes, List.append_nil,
← ready.counter_succ e.isLt, Function.update_eq_self]
have run := MachineUnaryCounter.guardInTime_succ Tape.counter Driver.Label.guard
.tailStart .reverseOutput (Driver.program q) (by rfl) base
(input.darts - (e.val + 1)) [] (normal oldRelation oldFlag).1 none
rw [hbase] at run
simpa only [MachineUnaryCounter.counterTapes, List.append_nil, guardTapes,
normal] using run
have parsed : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .tailStart, normal oldRelation oldFlag, guardTapes input e base⟩
(some ⟨some .headCopyFirst, normal input.rows[e].relation oldFlag,
parsedTapes input e base⟩) (Lookup.readRowCost input.rows[e]) := by
have hcursor : guardTapes input e base .cursor = Lookup.rowBits input.rows[e] ++
LoopState.cursorBits input (e.val + 1) := by
simpa only [guardTapes, Function.update_of_ne (by decide : Tape.cursor ≠ .counter),
Lookup.rowBits] using ready.cursor.trans (LoopState.cursorBits_succ input e.val e.isLt)
have htail : guardTapes input e base .tail = [] := by simp [guardTapes, ready.tail]
have hreverse : guardTapes input e base .reverseIndex = [] := by
simp [guardTapes, ready.reverseIndex]
simpa only [normal, parsedTapes] using
Lookup.readRowInTime Tape.cursor Tape.tail Tape.reverseIndex
(by decide) (by decide) (by decide) Driver.Label.tailStart .tailLoop
.reverseStart .reverseLoop .readPredicate .headCopyFirst (Driver.program q)
(by rfl) (by rfl) (by rfl) (by rfl) (by rfl)
(guardTapes input e base) input.rows[e] (LoopState.cursorBits input (e.val + 1))
hcursor htail hreverse (oldFlag, false, none) oldRelation none
have looked : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .headCopyFirst, normal input.rows[e].relation oldFlag, parsedTapes input e base⟩
(some ⟨some (.compare .leftFirst), normal input.rows[e].relation oldFlag,
workingTapes input e base⟩) (7 * N + 5) := by
have htable : parsedTapes input e base (headPorts 0) = GenericGraphTables.tableBits input := by
simpa [headPorts, parsedTapes, Lookup.readRowTapes, guardTapes,
LoopState.inputBits] using ready.original
have hreverse : parsedTapes input e base (headPorts 1) =
encodeWord (Lookup.headIndex input e).val := by
simp [headPorts, parsedTapes, Lookup.readRowTapes, Lookup.headIndex]
have hhead : parsedTapes input e base (headPorts 4) = [] := by
simp [headPorts, parsedTapes, Lookup.readRowTapes, guardTapes, ready.head]
have hscratch : parsedTapes input e base (headPorts 5) = [] := by
simp [headPorts, parsedTapes, Lookup.readRowTapes, guardTapes, ready.scratch]
have run := Lookup.headLookupInTime headPorts headPorts_injective
Driver.Label.headCopyFirst .headCopySecond .indexCopyFirst .indexCopySecond
.headVertices .headDarts Driver.Label.headLookup (some (.compare .leftFirst))
(Driver.program q) (by rfl) (by rfl) (by rfl) (by rfl) (by rfl) (by rfl)
(fun _ => rfl) (parsedTapes input e base) input e htable hreverse hhead hscratch
(normal input.rows[e].relation oldFlag).1 none
simpa only [workingTapes, normal, N, LoopState.inputBits, Lookup.headTimePolynomial,
Polynomial.eval_add, Polynomial.eval_mul, Polynomial.eval_C, Polynomial.eval_X] using run
have hleft : workingTapes input e base .compareLeft = [] :=
(workingTapes_other_inline_Body input e base .compareLeft (by decide) (by decide) (by decide)
(by decide) (by decide) (by decide) (by decide)).trans ready.compareLeft
have hright : workingTapes input e base .compareRight = [] :=
(workingTapes_other_inline_Body input e base .compareRight (by decide) (by decide) (by decide)
(by decide) (by decide) (by decide) (by decide)).trans ready.compareRight
have hscratch : workingTapes input e base .scratch = [] :=
(workingTapes_other_inline_Body input e base .scratch (by decide) (by decide) (by decide)
(by decide) (by decide) (by decide) (by decide)).trans ready.scratch
let compared := CompareLoop.compareRowInTime Driver.Label.compare (Driver.rowEntry q)
(Driver.program q) (fun _ => rfl) input e (workingTapes input e base)
(workingTapes_tail_inline_Body input e base) (workingTapes_head_inline_Body input e base)
hleft hright hscratch oldFlag
let emitted := emitInTime input e (workingTapes input e base)
(workingOperands_inline_Body input e base ready) hscratch
let cleared := clearFieldsInTime (emittedTapes input e base) (CompareLoop.rowState input e).1
have hedge : clearFieldsTapes (emittedTapes input e base) .edge = encodeWord e.val := by
simp [clearFieldsTapes, emittedTapes, Emitter.resultTapes, workingTapes,
Lookup.headLookupTapes, MachineLookup.tapes, headPorts, parsedTapes,
Lookup.readRowTapes, guardTapes, ready.edge]
let incremented := incrementInTime (clearFieldsTapes (emittedTapes input e base))
(CompareLoop.rowState input e).1 e.val hedge
let run₁ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ guarded parsed
let run₂ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₁ looked
let run₃ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₂ compared
let run₄ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₃ emitted
let run₅ := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₄ cleared
let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ run₅ incremented
refine {
tapes := resultTapes input e base
ready := result_ready_inline_Body input e base ready
run := { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
}
have hn : input.vertices ≤ N := GenericGraphTables.vertices_le_tableBits_length input
have hm : input.darts ≤ N := GenericGraphTables.darts_le_tableBits_length input
have hr : Lookup.readRowCost input.rows[e] ≤ 2 * N + 5 :=
Lookup.readRowCost_table_le input e
have ht : (emittedTapes input e base .tail).length ≤ N := by
simp only [emittedTapes, Emitter.resultTapes,
Function.update_of_ne (by decide : Tape.tail ≠ .reversed), workingTapes_tail_inline_Body,
encodeWord_length]
exact (Nat.succ_le_of_lt input.rows[e].tail.isLt).trans hn
have hv : (emittedTapes input e base .reverseIndex).length ≤ N := by
simp only [emittedTapes, Emitter.resultTapes,
Function.update_of_ne (by decide : Tape.reverseIndex ≠ .reversed), workingTapes_reverse_inline_Body,
encodeWord_length]
exact (Nat.succ_le_of_lt input.rows[e].reverseIndex.isLt).trans hm
have hh : (emittedTapes input e base .head).length ≤ N := by
simp only [emittedTapes, Emitter.resultTapes,
Function.update_of_ne (by decide : Tape.head ≠ .reversed), workingTapes_head_inline_Body,
encodeWord_length]
exact (Nat.succ_le_of_lt input.rows[input.rows[e].reverseIndex].tail.isLt).trans hn
have budget := run.steps_le_m
change run.steps ≤ (32 + 8 * (Enumeration.localCount q * (6 * (2 * 4104)))) * (N + 1)
nlinarith
end DFVSGames.Foundations.PCP.AlphabetTable.Body
namespace DFVSGames.Foundations.PCP.AlphabetTable.Initialization
open Turing
open DFVSGames.Foundations.Complexity
open RuntimeModel
variable {q : Nat}
def inputTapes (input : GenericGraphTables.Table q) : Tape → List Bool
| .original => GenericGraphTables.tableBits input
| _ => []
def rowsBits (input : GenericGraphTables.Table q) : List Bool :=
encodeWords ((GenericGraphTables.rowList input).flatMap GenericGraphTables.rowWords)
def headerBits (input : GenericGraphTables.Table q) : List Bool :=
encodeWords [Enumeration.vertexCount input.vertices input.darts q,
Enumeration.dartCount input.darts q]
def setupTapes (input : GenericGraphTables.Table q) : Tape → List Bool
| .original => GenericGraphTables.tableBits input
| .cursor => rowsBits input
| .vertices => encodeWord input.vertices
| .darts | .counter => encodeWord input.darts
| .edge => encodeWord 0
| _ => []
def loopTapes (input : GenericGraphTables.Table q) : Tape → List Bool
| .original => GenericGraphTables.tableBits input
| .cursor => rowsBits input
| .vertices => encodeWord input.vertices
| .darts | .counter => encodeWord input.darts
| .edge => encodeWord 0
| .reversed => (headerBits input).reverse
| _ => []
def loopStart (input : GenericGraphTables.Table q) :
TM2.Cfg Alphabet (Driver.Label q) (State q) :=
⟨some .guard, initial q, loopTapes input⟩
theorem setupResult_eq (input : GenericGraphTables.Table q) :
Setup.resultTapes setupPorts (inputTapes input) input.vertices input.darts (rowsBits input) =
setupTapes input := by
funext tape
cases tape <;> simp [Setup.resultTapes, setupPorts, inputTapes, setupTapes]
theorem headerResult_eq (input : GenericGraphTables.Table q) :
Emitter.resultTapes Tape.reversed (setupTapes input) (headerBits input) = loopTapes input := by
funext tape
cases tape <;> simp [Emitter.resultTapes, setupTapes, loopTapes]
theorem machineInitial_eq (input : GenericGraphTables.Table q) :
initList (Driver.machine q) (GenericGraphTables.tableBits input) =
(⟨some (.setup .copyFirst), initial q, inputTapes input⟩ :
TM2.Cfg Alphabet (Driver.Label q) (State q)) := by
change (⟨some (.setup .copyFirst), initial q, _⟩ :
TM2.Cfg Alphabet (Driver.Label q) (State q)) = _
congr 1
funext tape
cases tape <;> rfl
def setupInTime (input : GenericGraphTables.Table q) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
(initList (Driver.machine q) (GenericGraphTables.tableBits input))
(some ⟨some (Driver.headerEntry q), initial q, setupTapes input⟩)
(6 * (GenericGraphTables.tableBits input).length + 11) := by
have initialized : ∀ i : Fin 7, inputTapes input (setupPorts i) =
if i = 0 then GenericGraphTables.tableBits input else [] := by
intro i
fin_cases i <;> rfl
have run := Setup.tableSetupInTime setupPorts setupPorts_injective Driver.Label.setup
(some (Driver.headerEntry q)) (Driver.program q) (Driver.program_setup q)
(inputTapes input) input initialized (initial q).1 none
have initialState : ((initial q).1, (none : Option Bool)) = initial q := rfl
have result := setupResult_eq input
unfold rowsBits at result
rw [initialState, result] at run
rw [machineInitial_eq]
exact run
private theorem headerView_at_inline_Initialization (label : Emitter.Label (Driver.headerPlan q).length
(Addresses.fieldBound q)) :
(MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q).symm
(Driver.program q)) (.header label) =
Emitter.statement (Emitter.listCommands (Driver.headerPlan q)) headerSources
Tape.scratch Tape.reversed Driver.Label.header (some .guard) label := by
change MachineControl.statement id (emitterEquiv q).symm
(MachineControl.statement id (emitterEquiv q) _) = _
exact MachineFieldProfile.statement_roundtrip (emitterEquiv q).symm _
def headerInTime (input : GenericGraphTables.Table q) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some (Driver.headerEntry q), initial q, setupTapes input⟩
(some (loopStart input))
(7 * (3 * ((GenericGraphTables.tableBits input).length + 1) + 3) + 1) := by
let view := MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q).symm
(Driver.program q)
have sourceScratch : ∀ i : Fin 2, headerSources i ≠ Tape.scratch := by
intro i
fin_cases i <;> decide
have sourceOutput : ∀ i : Fin 2, headerSources i ≠ Tape.reversed := by
intro i
fin_cases i <;> decide
have operands : ∀ i : Fin 2, setupTapes input (headerSources i) =
encodeWord (![input.vertices, input.darts] i) := by
intro i
fin_cases i <;> rfl
have run := EmitRows.headerInTime q input.vertices input.darts headerSources
Tape.scratch Tape.reversed sourceScratch sourceOutput (by decide)
Driver.Label.header (some .guard) view headerView_at_inline_Initialization
(setupTapes input) operands (by rfl) (initial q).1
(GenericGraphTables.tableBits input).length
(GenericGraphTables.vertices_le_tableBits_length input)
(GenericGraphTables.darts_le_tableBits_length input)
have restored : MachineControl.program (Equiv.refl (Driver.Label q)) (emitterEquiv q) view =
Driver.program q := by
funext label
exact MachineFieldProfile.statement_roundtrip (emitterEquiv q) (Driver.program q label)
have transported := transportInTime (emitterEquiv q) view run
rw [restored] at transported
change StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some (Driver.headerEntry q), initial q, setupTapes input⟩
(some ⟨some .guard, initial q,
Emitter.resultTapes Tape.reversed (setupTapes input) (headerBits input)⟩)
(7 * (3 * ((GenericGraphTables.tableBits input).length + 1) + 3) + 1) at transported
rw [headerResult_eq] at transported
exact transported
def time (N : Nat) : Nat := (6 * N + 11) + (7 * (3 * (N + 1) + 3) + 1)
theorem time_eq (N : Nat) : time N = 27 * N + 54 := by
unfold time
omega
def initializeInTime (input : GenericGraphTables.Table q) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
(initList (Driver.machine q) (GenericGraphTables.tableBits input))
(some (loopStart input)) (time (GenericGraphTables.tableBits input).length) := by
let run := StateTransition.EvalsToInTime.trans _ _ _ _ _ _
(setupInTime input) (headerInTime input)
refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
have bound := run.steps_le_m
unfold time
omega
end DFVSGames.Foundations.PCP.AlphabetTable.Initialization
namespace DFVSGames.Foundations.PCP.AlphabetTable.LoopInitialization
open DFVSGames.Foundations.Complexity
open RuntimeModel LoopState
theorem initialization_ready {q : Nat} (input : GenericGraphTables.Table q) :
Ready input 0 (Initialization.loopTapes input) where
le_darts := Nat.zero_le _
original := rfl
cursor := by
change Initialization.rowsBits input = cursorBits input 0
rw [cursorBits_zero]
rfl
vertices := rfl
darts := rfl
counter := by simp [Initialization.loopTapes]
edge := rfl
tail := rfl
reverseIndex := rfl
head := rfl
scratch := rfl
compareLeft := rfl
compareRight := rfl
output := rfl
reversed := by
change (Initialization.headerBits input).reverse = (prefixBits input 0).reverse
rw [prefixBits_zero]
rfl
end DFVSGames.Foundations.PCP.AlphabetTable.LoopInitialization
namespace DFVSGames.Foundations.PCP.AlphabetTable.Loop
open Turing
open DFVSGames.Foundations.Complexity
open RuntimeModel
variable {q : Nat}
def zeroGuardInTime (input : GenericGraphTables.Table q) (base : Tape → List Bool)
(ready : LoopState.Ready input input.darts base)
(relation : GenericGraphTables.RelationTable q) (flag : Bool) :
StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .guard, normal relation flag, base⟩
(some ⟨some .reverseOutput, normal relation flag, base⟩) 1 := by
have counterSelf : MachineUnaryCounter.counterTapes Tape.counter base 0 [] = base := by
simp only [MachineUnaryCounter.counterTapes, List.append_nil,
← ready.counter_at_end, Function.update_eq_self]
have run := MachineUnaryCounter.guardInTime_zero Tape.counter
(Driver.Label.guard : Driver.Label q) .tailStart .reverseOutput
(Driver.program q) (Driver.program_guard q) base [] (normal relation flag).1 none
simpa only [counterSelf, normal] using run
structure LoopResult (input : GenericGraphTables.Table q) (e remaining : Nat)
(base : Tape → List Bool) (oldRelation : GenericGraphTables.RelationTable q)
(oldFlag : Bool) where
tapes : Tape → List Bool
relation : GenericGraphTables.RelationTable q
flag : Bool
ready : LoopState.Ready input input.darts tapes
run : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
⟨some .guard, normal oldRelation oldFlag, base⟩
(some ⟨some .reverseOutput, normal relation flag, tapes⟩)
(remaining * Body.bodyTime q (LoopState.inputBits input).length + 1)
def runRemaining (input : GenericGraphTables.Table q) :
(remaining e : Nat) → e + remaining = input.darts →
(base : Tape → List Bool) → LoopState.Ready input e base →
(oldRelation : GenericGraphTables.RelationTable q) → (oldFlag : Bool) →
LoopResult input e remaining base oldRelation oldFlag
| 0, e, finished, base, ready, oldRelation, oldFlag => by
have atEnd : e = input.darts := by omega
subst e
exact {
tapes := base
relation := oldRelation
flag := oldFlag
ready := ready
run := by
simpa only [Nat.zero_mul, Nat.zero_add] using
zeroGuardInTime input base ready oldRelation oldFlag }
| remaining + 1, e, finished, base, ready, oldRelation, oldFlag => by
have beforeEnd : e < input.darts := by omega
let edge : Fin input.darts := ⟨e, beforeEnd⟩
let one := Body.rowStep input edge base ready oldRelation oldFlag
let rest := runRemaining input remaining (e + 1) (by omega) one.tapes one.ready
input.rows[edge].relation (CompareLoop.rowLoop input edge)
let composed := StateTransition.EvalsToInTime.trans _ _ _ _ _ _ one.run rest.run
refine {
tapes := rest.tapes
relation := rest.relation
flag := rest.flag
ready := rest.ready
run := { toEvalsTo := composed.toEvalsTo, steps_le_m := ?_ } }
have budget := composed.steps_le_m
simpa only [Nat.succ_mul, Nat.add_assoc, Nat.add_comm, Nat.add_left_comm] using budget
def prefixTime (q N : Nat) : Nat :=
Initialization.time N + N * Body.bodyTime q N + 1
structure PrefixResult (input : GenericGraphTables.Table q) where
tapes : Tape → List Bool
relation : GenericGraphTables.RelationTable q
flag : Bool
ready : LoopState.Ready input input.darts tapes
run : StateTransition.EvalsToInTime (TM2.step (Driver.program q))
(initList (Driver.machine q) (GenericGraphTables.tableBits input))
(some ⟨some .reverseOutput, normal relation flag, tapes⟩)
(prefixTime q (LoopState.inputBits input).length)
def runPrefix (input : GenericGraphTables.Table q) : PrefixResult input := by
let rows := runRemaining input input.darts 0 (by simp)
(Initialization.loopTapes input) (LoopInitialization.initialization_ready input)
(Vector.replicate (q * q) false) false
let composed := StateTransition.EvalsToInTime.trans _ _ _ _ _ _
(Initialization.initializeInTime input) rows.run
refine {
tapes := rows.tapes
relation := rows.relation
flag := rows.flag
ready := rows.ready
run := { toEvalsTo := composed.toEvalsTo, steps_le_m := ?_ } }
have budget := composed.steps_le_m
change composed.steps ≤
input.darts * Body.bodyTime q (LoopState.inputBits input).length + 1 +
Initialization.time (LoopState.inputBits input).length at budget
have rowCount : input.darts ≤ (LoopState.inputBits input).length :=
GenericGraphTables.darts_le_tableBits_length input
have rowBudget := Nat.mul_le_mul_right (Body.bodyTime q (LoopState.inputBits input).length)
rowCount
unfold prefixTime
omega
theorem PrefixResult.reversed {input : GenericGraphTables.Table q} (result : PrefixResult input) :
result.tapes .reversed = (GraphTables.tableBits (Table.build input)).reverse :=
result.ready.reversed_at_end
theorem PrefixResult.output {input : GenericGraphTables.Table q} (result : PrefixResult input) :
result.tapes .output = [] := result.ready.output
end DFVSGames.Foundations.PCP.AlphabetTable.Loop
namespace DFVSGames.Foundations.PCP.AlphabetTable.Finish
open Turing
open DFVSGames.Foundations.Complexity
open RuntimeModel
open scoped BigOperators
def afterReversal (base : Tape → List Bool) (word : List Bool) : Tape → List Bool :=
Reduction.MachineTransfer.tapesAt .reversed .output base [] word
@[simp] theorem afterReversal_output (base : Tape → List Bool) (word : List Bool) :
afterReversal base word .output = word := by
simp [afterReversal, Reduction.MachineTransfer.tapesAt]
@[simp] theorem afterReversal_reversed (base : Tape → List Bool) (word : List Bool) :
afterReversal base word .reversed = [] := by
simp [afterReversal, Reduction.MachineTransfer.tapesAt]
def finishBudget (base : Tape → List Bool) (word : List Bool) : Nat :=
word.length + 1 + (∑ i : Fin 15, (afterReversal base word (cleanupPorts i)).length) + 16
def reverseInTime (q : Nat) (base : Tape → List Bool) (word : List Bool)
(state : State q) (hreversed : base .reversed = word.reverse)
(houtput : base .output = []) :
StateTransition.EvalsToInTime (Driver.machine q).step
⟨some .reverseOutput, state, base⟩
(some ⟨some (.cleanup 0), (state.1, none), afterReversal base word⟩)
(word.length + 1) := by
have run := Reduction.MachineTransfer.transferAtInTime
(σ := Ambient q) Tape.reversed Tape.output (by decide) id false
Driver.Label.reverseOutput (some (.cleanup 0)) (Driver.program q) rfl
base state.1 state.2
simp only [hreversed, houtput, List.length_reverse, List.reverse_reverse,
List.map_id, List.append_nil] at run
exact run
theorem cleared_eq_haltList (q : Nat) (base : Tape → List Bool) :
(⟨none, initial q, Cleanup.clearTapes cleanupPorts base⟩ : (Driver.machine q).Cfg) =
haltList (Driver.machine q) (base .output) := by
have tapes := Cleanup.clearTapes_outputOnly cleanupPorts Tape.output base
cleanupPorts_ne_output cleanupPorts_cover
congr 1
def cleanupInTime (q : Nat) (base : Tape → List Bool) (state : State q) :
StateTransition.EvalsToInTime (Driver.machine q).step
⟨some (.cleanup 0), state, base⟩
(some (haltList (Driver.machine q) (base .output)))
((∑ i : Fin 15, (base (cleanupPorts i)).length) + 16) := by
have run := Cleanup.cleanupInTime cleanupPorts Driver.Label.cleanup (initial q).1 none
(Driver.program q)
(fun i => by simp only [Driver.program, Cleanup.instruction_drain])
(by simp only [Driver.program, Cleanup.instruction_finish]) base state.1 state.2
change StateTransition.EvalsToInTime (Driver.machine q).step
⟨some (.cleanup 0), state, base⟩
(some ⟨none, initial q, Cleanup.clearTapes cleanupPorts base⟩)
((∑ i : Fin 15, (base (cleanupPorts i)).length) + 15 + 1) at run
rw [cleared_eq_haltList] at run
simpa only [Nat.add_assoc] using run
def finishInTime (q : Nat) (base : Tape → List Bool) (word : List Bool)
(state : State q) (hreversed : base .reversed = word.reverse)
(houtput : base .output = []) :
StateTransition.EvalsToInTime (Driver.machine q).step
⟨some .reverseOutput, state, base⟩
(some (haltList (Driver.machine q) word)) (finishBudget base word) := by
have first := reverseInTime q base word state hreversed houtput
have last := cleanupInTime q (afterReversal base word) (state.1, none)
rw [afterReversal_output] at last
have run := StateTransition.EvalsToInTime.trans (Driver.machine q).step _ _
⟨some .reverseOutput, state, base⟩
⟨some (.cleanup 0), (state.1, none), afterReversal base word⟩
(some (haltList (Driver.machine q) word)) first last
refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
have budgetEq : ((∑ i : Fin 15, (afterReversal base word (cleanupPorts i)).length) + 16) +
(word.length + 1) =
finishBudget base word := by
dsimp only [finishBudget]
omega
exact run.steps_le_m.trans (Nat.le_of_eq budgetEq)
theorem afterReversal_selected_length_le (base : Tape → List Bool) (word : List Bool)
(i : Fin 15) :
(afterReversal base word (cleanupPorts i)).length ≤ (base (cleanupPorts i)).length := by
have ho := cleanupPorts_ne_output i
by_cases hr : cleanupPorts i = .reversed <;>
simp [afterReversal, Reduction.MachineTransfer.tapesAt, ho, hr]
theorem stackLength_after_prefix (q : Nat) (input : List Bool)
(base : Tape → List Bool) (state : State q) (budget : Nat)
(prefixRun : StateTransition.EvalsToInTime (Driver.machine q).step
(initList (Driver.machine q) input) (some ⟨some .reverseOutput, state, base⟩) budget)
(k : Tape) :
(base k).length ≤ input.length + budget * Runtime.programPushBound (Driver.machine q) := by
have bound := Runtime.executionSizeBound (Driver.machine q).step
(fun cfg => (cfg.stk k).length) (Runtime.programPushBound (Driver.machine q))
(Runtime.stepStackLength (Driver.machine q) k) prefixRun
exact bound.trans (Nat.add_le_add_right
(Runtime.initialStackLength (Driver.machine q) input k) _)
theorem finishBudget_le_of_prefix (q : Nat) (input : List Bool)
(base : Tape → List Bool) (word : List Bool) (state : State q) (budget : Nat)
(prefixRun : StateTransition.EvalsToInTime (Driver.machine q).step
(initList (Driver.machine q) input) (some ⟨some .reverseOutput, state, base⟩) budget)
(hreversed : base .reversed = word.reverse) :
finishBudget base word ≤
16 * (input.length + budget * Runtime.programPushBound (Driver.machine q)) + 17 := by
let B := input.length + budget * Runtime.programPushBound (Driver.machine q)
have wordBound : word.length ≤ B := by
simpa only [hreversed, List.length_reverse] using
stackLength_after_prefix q input base state budget prefixRun .reversed
have sumBound : (∑ i : Fin 15, (afterReversal base word (cleanupPorts i)).length) ≤ 15 * B := by
calc
_ ≤ ∑ _i : Fin 15, B := by
apply Finset.sum_le_sum
intro i _
exact (afterReversal_selected_length_le base word i).trans
(stackLength_after_prefix q input base state budget prefixRun (cleanupPorts i))
_ = 15 * B := by simp
dsimp only [finishBudget]
omega
noncomputable def completedPolynomial (q : Nat) (prefixTime : Polynomial Nat) : Polynomial Nat :=
prefixTime + Polynomial.C 16 *
(Polynomial.X + Polynomial.C (Runtime.programPushBound (Driver.machine q)) * prefixTime) +
Polynomial.C 17
def finishAfterPrefix (q : Nat) (input : List Bool) (base : Tape → List Bool)
(word : List Bool) (state : State q) (budget : Nat)
(prefixRun : StateTransition.EvalsToInTime (Driver.machine q).step
(initList (Driver.machine q) input) (some ⟨some .reverseOutput, state, base⟩) budget)
(hreversed : base .reversed = word.reverse) (houtput : base .output = []) :
TM2OutputsInTime (Driver.machine q) input (some word)
(budget + 16 * (input.length + budget * Runtime.programPushBound (Driver.machine q)) + 17) := by
have last := finishInTime q base word state hreversed houtput
let run := StateTransition.EvalsToInTime.trans (Driver.machine q).step _ _
(initList (Driver.machine q) input) ⟨some .reverseOutput, state, base⟩
(some (haltList (Driver.machine q) word)) prefixRun last
refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
have finishBound := finishBudget_le_of_prefix q input base word state budget prefixRun hreversed
have allBound := run.steps_le_m
omega
def finishAfterPolynomialPrefix (q : Nat) (input : List Bool) (base : Tape → List Bool)
(word : List Bool) (state : State q) (prefixTime : Polynomial Nat)
(prefixRun : StateTransition.EvalsToInTime (Driver.machine q).step
(initList (Driver.machine q) input) (some ⟨some .reverseOutput, state, base⟩)
(prefixTime.eval input.length))
(hreversed : base .reversed = word.reverse) (houtput : base .output = []) :
TM2OutputsInTime (Driver.machine q) input (some word)
((completedPolynomial q prefixTime).eval input.length) := by
have run := finishAfterPrefix q input base word state (prefixTime.eval input.length)
prefixRun hreversed houtput
refine { toEvalsTo := run.toEvalsTo, steps_le_m := ?_ }
simpa only [completedPolynomial, Polynomial.eval_add, Polynomial.eval_mul,
Polynomial.eval_C, Polynomial.eval_X, Nat.mul_comm] using run.steps_le_m
end DFVSGames.Foundations.PCP.AlphabetTable.Finish
namespace DFVSGames.Foundations.PCP.AlphabetTable.Runtime
open Turing
open DFVSGames.Foundations.Complexity
open RuntimeModel
noncomputable def prefixPolynomial (q : Nat) : Polynomial Nat :=
Polynomial.C 27 * Polynomial.X + Polynomial.C 54 +
Polynomial.X *
(Polynomial.C (32 + 8 * (Enumeration.localCount q * (6 * (2 * 4104)))) *
(Polynomial.X + Polynomial.C 1)) + Polynomial.C 1
theorem prefixPolynomial_eval (q N : Nat) :
(prefixPolynomial q).eval N = Loop.prefixTime q N := by
simp only [prefixPolynomial, Polynomial.eval_add, Polynomial.eval_mul,
Polynomial.eval_C, Polynomial.eval_X, Loop.prefixTime,
Initialization.time, Body.bodyTime]
ring
noncomputable def time (q : Nat) : Polynomial Nat :=
Finish.completedPolynomial q (prefixPolynomial q)
noncomputable def tableOutputsInTime {q : Nat} (input : GenericGraphTables.Table q) :
TM2OutputsInTime (Driver.machine q) (GenericGraphTables.tableBits input)
(some (GraphTables.tableBits (Table.build input)))
((time q).eval (GenericGraphTables.tableBits input).length) := by
let prefixRun := Loop.runPrefix input
have hrun : StateTransition.EvalsToInTime (Driver.machine q).step
(initList (Driver.machine q) (GenericGraphTables.tableBits input))
(some ⟨some .reverseOutput, normal prefixRun.relation prefixRun.flag, prefixRun.tapes⟩)
((prefixPolynomial q).eval (GenericGraphTables.tableBits input).length) := by
rw [prefixPolynomial_eval]
exact prefixRun.run
exact Finish.finishAfterPolynomialPrefix q (GenericGraphTables.tableBits input)
prefixRun.tapes (GraphTables.tableBits (Table.build input))
(normal prefixRun.relation prefixRun.flag) (prefixPolynomial q) hrun
prefixRun.ready.reversed_at_end prefixRun.ready.output
noncomputable def tablePolynomialTime (q : Nat) :
TM2ComputableInPolyTime (GenericGraphTables.tableBits (q := q))
GraphTables.tableBits (Table.build (q := q)) where
tm := Driver.machine q
inputAlphabet := Equiv.refl Bool
outputAlphabet := Equiv.refl Bool
time := time q
outputsFun input := by
dsimp only [Driver.machine, Equiv.refl]
simp only [List.map_id]
exact tableOutputsInTime input
end DFVSGames.Foundations.PCP.AlphabetTable.Runtime
end OAI