/usr/share/acl2-7.2dfsg/books/system/legal-variablep.lisp is in acl2-books-source 7.2dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | ; legal-variablep.lisp -- admit and verify guards of legal-variablep, etc.
; Copyright (C) 2008-2013 Centaur Technology
;
; Contact:
; Centaur Technology Formal Verification Group
; 7600-C N. Capital of Texas Highway, Suite 300, Austin, TX 78731, USA.
; http://www.centtech.com/
;
; License: (An MIT/X11-style license)
;
; Permission is hereby granted, free of charge, to any person obtaining a
; copy of this software and associated documentation files (the "Software"),
; to deal in the Software without restriction, including without limitation
; the rights to use, copy, modify, merge, publish, distribute, sublicense,
; and/or sell copies of the Software, and to permit persons to whom the
; Software is furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be included in
; all copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
; DEALINGS IN THE SOFTWARE.
;
; Original author: Jared Davis <jared@centtech.com>
(in-package "ACL2")
(local (in-theory (disable member-equal)))
(verify-termination legal-variable-or-constant-namep)
(verify-termination legal-variablep)
(verify-termination arglistp1)
(verify-termination arglistp)
(verify-termination lambda-keywordp)
(verify-termination legal-constantp1)
(verify-guards legal-variable-or-constant-namep)
(verify-guards legal-variablep)
(verify-guards arglistp1)
(verify-guards arglistp)
(verify-guards lambda-keywordp)
(verify-termination find-first-bad-arg ; See later in file for verify-guards.
(declare (xargs :verify-guards nil)))
(defthm symbolp-when-legal-variablep
(implies (legal-variablep x)
(and (symbolp x)
(not (equal x t))
(not (equal x nil))))
:rule-classes :compound-recognizer)
(local (defthm find-first-bad-arg-lemma-lemma
(implies (and (character-listp x)
(atom (cdr x))
(equal (car x) #\&))
(equal "&" (coerce x 'string)))
:rule-classes nil))
(local (defthm find-first-bad-arg-lemma
(implies (and (not (equal "&" s))
(equal (car (coerce s 'list)) #\&)
(stringp s))
(consp (cdr (coerce s 'list))))
:hints (("Goal" :use ((:instance find-first-bad-arg-lemma-lemma
(x (coerce s 'list))))))))
(verify-guards find-first-bad-arg
:hints (("Goal" :in-theory (enable string< string<-l))))
; Since we're verifying these terminate, it seems reasonable to disable them here.
(in-theory (disable legal-variable-or-constant-namep
legal-variablep
arglistp1
arglistp
lambda-keywordp
legal-constantp1
find-first-bad-arg))
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