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    • Observability-fix

    Observability-fix-outs

    Signature
    (observability-fix-outs n config aignet copy strash aignet2 state) 
      → 
    (mv new-copy new-strash new-aignet2 new-aignet new-state)
    Arguments
    n — Guard (natp n).
    config — Guard (observability-config-p config).

    Definitions and Theorems

    Function: observability-fix-outs

    (defun observability-fix-outs
           (n config aignet copy strash aignet2 state)
     (declare (xargs :stobjs (aignet copy strash aignet2 state)))
     (declare (xargs :guard (and (natp n)
                                 (observability-config-p config))))
     (declare (xargs :guard (and (<= (num-ins aignet) (num-ins aignet2))
                                 (<= (num-regs aignet)
                                     (num-regs aignet2))
                                 (aignet-copies-in-bounds copy aignet2)
                                 (<= n (num-outs aignet)))))
     (let ((__function__ 'observability-fix-outs))
       (declare (ignorable __function__))
       (b* ((aignet (aignet-fix aignet))
            (aignet2 (aignet-fix aignet2))
            ((when (mbe :logic (zp (- (num-outs aignet) (nfix n)))
                        :exec (eql (num-outs aignet) n)))
             (mv copy strash aignet2 aignet state))
            (fanin-lit (outnum->fanin n aignet))
            ((mv copy-lit
                 copy strash aignet2 aignet state)
             (observability-fix-lit fanin-lit config
                                    aignet copy strash aignet2 state))
            (aignet2 (aignet-add-out copy-lit aignet2)))
         (observability-fix-outs (1+ (lnfix n))
                                 config
                                 aignet copy strash aignet2 state))))

    Theorem: observability-fix-outs-of-nfix-n

    (defthm observability-fix-outs-of-nfix-n
     (equal
        (observability-fix-outs (nfix n)
                                config aignet copy strash aignet2 state)
        (observability-fix-outs n config
                                aignet copy strash aignet2 state)))

    Theorem: observability-fix-outs-nat-equiv-congruence-on-n

    (defthm observability-fix-outs-nat-equiv-congruence-on-n
     (implies
      (nat-equiv n n-equiv)
      (equal
        (observability-fix-outs n
                                config aignet copy strash aignet2 state)
        (observability-fix-outs n-equiv config
                                aignet copy strash aignet2 state)))
     :rule-classes :congruence)

    Theorem: observability-fix-outs-of-observability-config-fix-config

    (defthm observability-fix-outs-of-observability-config-fix-config
      (equal (observability-fix-outs n (observability-config-fix config)
                                     aignet copy strash aignet2 state)
             (observability-fix-outs n config
                                     aignet copy strash aignet2 state)))

    Theorem: observability-fix-outs-observability-config-equiv-congruence-on-config

    (defthm
     observability-fix-outs-observability-config-equiv-congruence-on-config
     (implies
      (observability-config-equiv config config-equiv)
      (equal
        (observability-fix-outs n
                                config aignet copy strash aignet2 state)
        (observability-fix-outs n config-equiv
                                aignet copy strash aignet2 state)))
     :rule-classes :congruence)

    Theorem: observability-fix-outs-of-node-list-fix-aignet

    (defthm observability-fix-outs-of-node-list-fix-aignet
      (equal (observability-fix-outs n config (node-list-fix aignet)
                                     copy strash aignet2 state)
             (observability-fix-outs n config
                                     aignet copy strash aignet2 state)))

    Theorem: observability-fix-outs-node-list-equiv-congruence-on-aignet

    (defthm observability-fix-outs-node-list-equiv-congruence-on-aignet
     (implies
      (node-list-equiv aignet aignet-equiv)
      (equal
        (observability-fix-outs n
                                config aignet copy strash aignet2 state)
        (observability-fix-outs n config aignet-equiv
                                copy strash aignet2 state)))
     :rule-classes :congruence)

    Theorem: observability-fix-outs-of-node-list-fix-aignet2

    (defthm observability-fix-outs-of-node-list-fix-aignet2
      (equal (observability-fix-outs n config aignet
                                     copy strash (node-list-fix aignet2)
                                     state)
             (observability-fix-outs n config
                                     aignet copy strash aignet2 state)))

    Theorem: observability-fix-outs-node-list-equiv-congruence-on-aignet2

    (defthm observability-fix-outs-node-list-equiv-congruence-on-aignet2
     (implies
      (node-list-equiv aignet2 aignet2-equiv)
      (equal
        (observability-fix-outs n
                                config aignet copy strash aignet2 state)
        (observability-fix-outs n config aignet
                                copy strash aignet2-equiv state)))
     :rule-classes :congruence)

    Theorem: aignet-extension-p-of-observability-fix-outs-2

    (defthm aignet-extension-p-of-observability-fix-outs-2
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (aignet-extension-p new-aignet2 aignet2)))

    Theorem: aignet-extension-p-of-observability-fix-outs-1

    (defthm aignet-extension-p-of-observability-fix-outs-1
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (aignet-extension-p new-aignet aignet)))

    Theorem: stype-counts-of-observability-fix-outs-2

    (defthm stype-counts-of-observability-fix-outs-2
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (implies (and (and (not (equal (stype-fix stype) (and-stype)))
                           (not (equal (stype-fix stype) (xor-stype))))
                      (not (equal (stype-fix stype) :po)))
                 (equal (stype-count stype new-aignet2)
                        (stype-count stype aignet2)))))

    Theorem: stype-counts-of-observability-fix-outs-1

    (defthm stype-counts-of-observability-fix-outs-1
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (implies (and (not (equal (stype-fix stype) (and-stype)))
                      (not (equal (stype-fix stype) (xor-stype))))
                 (equal (stype-count stype new-aignet)
                        (stype-count stype aignet)))))

    Theorem: copies-in-bounds-of-observability-fix-outs

    (defthm copies-in-bounds-of-observability-fix-outs
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (implies (and (aignet-copies-in-bounds copy aignet2)
                      (<= (num-ins aignet) (num-ins aignet2))
                      (<= (num-regs aignet)
                          (num-regs aignet2)))
                 (aignet-copies-in-bounds new-copy new-aignet2))))

    Theorem: num-outs-of-observability-fix-outs

    (defthm num-outs-of-observability-fix-outs
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (equal (stype-count :po new-aignet2)
               (+ (max 0 (- (num-outs aignet) (nfix n)))
                  (num-outs aignet2)))))

    Theorem: output-eval-of-observability-fix-outs

    (defthm output-eval-of-observability-fix-outs
     (b* (((mv ?new-copy ?new-strash
               ?new-aignet2 ?new-aignet ?new-state)
           (observability-fix-outs n config
                                   aignet copy strash aignet2 state)))
       (implies (and (<= (num-ins aignet) (num-ins aignet2))
                     (<= (num-regs aignet)
                         (num-regs aignet2))
                     (aignet-copies-in-bounds copy aignet2))
                (equal (output-eval m invals regvals new-aignet2)
                       (if (or (< (nfix m) (num-outs aignet2))
                               (<= (+ (num-outs aignet2)
                                      (- (num-outs aignet) (nfix n)))
                                   (nfix m)))
                           (output-eval m invals regvals aignet2)
                         (output-eval (+ (- (nfix m) (num-outs aignet2))
                                         (nfix n))
                                      invals regvals aignet))))))

    Theorem: w-state-of-observability-fix-outs

    (defthm w-state-of-observability-fix-outs
      (b* (((mv ?new-copy ?new-strash
                ?new-aignet2 ?new-aignet ?new-state)
            (observability-fix-outs n config
                                    aignet copy strash aignet2 state)))
        (equal (w new-state) (w state))))