TSTP Solution File: DAT093_1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : DAT093_1 : TPTP v8.1.0. Released v6.1.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri Sep 16 14:36:42 EDT 2022

% Result   : Theorem 0.19s 0.40s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   22
% Syntax   : Number of formulae    :   49 (  25 unt;   3 typ;   0 def)
%            Number of atoms       :   89 (  75 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   57 (  24   ~;  12   |;   0   &)
%                                         (  21 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of FOOLs       :   10 (  10 fml;   0 var)
%            Number arithmetic     :  304 (   6 atm; 170 fun; 128 num;   0 var)
%            Number of types       :    1 (   0 usr;   1 ari)
%            Number of type conns  :    3 (   2   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    9 (   5 usr;   2 prp; 0-3 aty)
%            Number of functors    :    9 (   3 usr;   5 con; 0-2 aty)
%            Number of variables   :   78 (  71   !;   0   ?;  78   :)

% Comments : 
%------------------------------------------------------------------------------
tff(length_type,type,
    length: list > $int ).

tff(append_type,type,
    append: ( list * list ) > list ).

tff(nil_type,type,
    nil: list ).

tff(1,plain,
    ^ [L: list] :
      refl(
        ( ( append(nil,L) = L )
      <=> ( append(nil,L) = L ) )),
    inference(bind,[status(th)],]) ).

tff(2,plain,
    ( ! [L: list] : ( append(nil,L) = L )
  <=> ! [L: list] : ( append(nil,L) = L ) ),
    inference(quant_intro,[status(thm)],[1]) ).

tff(3,plain,
    ( ! [L: list] : ( append(nil,L) = L )
  <=> ! [L: list] : ( append(nil,L) = L ) ),
    inference(rewrite,[status(thm)],]) ).

tff(4,axiom,
    ! [L: list] : ( append(nil,L) = L ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l_6) ).

tff(5,plain,
    ! [L: list] : ( append(nil,L) = L ),
    inference(modus_ponens,[status(thm)],[4,3]) ).

tff(6,plain,
    ! [L: list] : ( append(nil,L) = L ),
    inference(skolemize,[status(sab)],[5]) ).

tff(7,plain,
    ! [L: list] : ( append(nil,L) = L ),
    inference(modus_ponens,[status(thm)],[6,2]) ).

tff(8,plain,
    ( ~ ! [L: list] : ( append(nil,L) = L )
    | ( append(nil,nil) = nil ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(9,plain,
    append(nil,nil) = nil,
    inference(unit_resolution,[status(thm)],[8,7]) ).

tff(10,plain,
    length(append(nil,nil)) = length(nil),
    inference(monotonicity,[status(thm)],[9]) ).

tff(11,plain,
    length(nil) = length(append(nil,nil)),
    inference(symmetry,[status(thm)],[10]) ).

tff(12,plain,
    ( ( length(nil) != length(append(nil,nil)) )
    | $greatereq($sum(length(nil),$product(-1,length(append(nil,nil)))),0) ),
    inference(theory_lemma,[status(thm)],]) ).

tff(13,plain,
    $greatereq($sum(length(nil),$product(-1,length(append(nil,nil)))),0),
    inference(unit_resolution,[status(thm)],[12,11]) ).

tff(14,plain,
    ^ [K: list,L: list] :
      refl(
        ( ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      <=> ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ) )),
    inference(bind,[status(th)],]) ).

tff(15,plain,
    ( ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
  <=> ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ) ),
    inference(quant_intro,[status(thm)],[14]) ).

tff(16,plain,
    ^ [K: list,L: list] :
      trans(
        monotonicity(rewrite($sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = $sum($product(-1,length(L)),$sum($product(-1,length(K)),length(append(K,L))))),
          ( ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 )
        <=> ( $sum($product(-1,length(L)),$sum($product(-1,length(K)),length(append(K,L)))) = 1 ) )),
        rewrite(
          ( ( $sum($product(-1,length(L)),$sum($product(-1,length(K)),length(append(K,L)))) = 1 )
        <=> ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ) )),
        ( ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 )
      <=> ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ) )),
    inference(bind,[status(th)],]) ).

tff(17,plain,
    ( ! [K: list,L: list] : ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 )
  <=> ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ) ),
    inference(quant_intro,[status(thm)],[16]) ).

tff(18,plain,
    ^ [K: list,L: list] :
      rewrite(
        ( ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) )
      <=> ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 ) )),
    inference(bind,[status(th)],]) ).

tff(19,plain,
    ( ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) )
  <=> ! [K: list,L: list] : ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 ) ),
    inference(quant_intro,[status(thm)],[18]) ).

tff(20,plain,
    ( ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) )
  <=> ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(21,plain,
    ( ~ ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) )
  <=> ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(22,plain,
    ( ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum($sum(length(K),length(L)),1) )
  <=> ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(23,plain,
    ( ~ ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum($sum(length(K),length(L)),1) )
  <=> ~ ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ) ),
    inference(monotonicity,[status(thm)],[22]) ).

tff(24,plain,
    ( ~ ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum($sum(length(K),length(L)),1) )
  <=> ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ) ),
    inference(transitivity,[status(thm)],[23,21]) ).

tff(25,axiom,
    ~ ~ ! [K: list,L: list] : ( length(append(K,L)) = $sum($sum(length(K),length(L)),1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',c) ).

tff(26,plain,
    ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ),
    inference(modus_ponens,[status(thm)],[25,24]) ).

tff(27,plain,
    ! [K: list,L: list] : ( length(append(K,L)) = $sum(1,$sum(length(K),length(L))) ),
    inference(modus_ponens,[status(thm)],[26,20]) ).

tff(28,plain,
    ! [K: list,L: list] : ( $sum(length(append(K,L)),$sum($product(-1,length(K)),$product(-1,length(L)))) = 1 ),
    inference(modus_ponens,[status(thm)],[27,19]) ).

tff(29,plain,
    ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ),
    inference(modus_ponens,[status(thm)],[28,17]) ).

tff(30,plain,
    ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ),
    inference(skolemize,[status(sab)],[29]) ).

tff(31,plain,
    ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 ),
    inference(modus_ponens,[status(thm)],[30,15]) ).

tff(32,plain,
    ( ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) )
  <=> ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(33,plain,
    ( ( $sum(length(nil),$sum(length(nil),$product(-1,length(append(nil,nil))))) = -1 )
  <=> ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(34,plain,
    ( ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum(length(nil),$sum(length(nil),$product(-1,length(append(nil,nil))))) = -1 ) )
  <=> ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) ) ),
    inference(monotonicity,[status(thm)],[33]) ).

tff(35,plain,
    ( ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum(length(nil),$sum(length(nil),$product(-1,length(append(nil,nil))))) = -1 ) )
  <=> ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
      | ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) ) ),
    inference(transitivity,[status(thm)],[34,32]) ).

tff(36,plain,
    ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
    | ( $sum(length(nil),$sum(length(nil),$product(-1,length(append(nil,nil))))) = -1 ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(37,plain,
    ( ~ ! [K: list,L: list] : ( $sum(length(L),$sum(length(K),$product(-1,length(append(K,L))))) = -1 )
    | ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1 ) ),
    inference(modus_ponens,[status(thm)],[36,35]) ).

tff(38,plain,
    $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) = -1,
    inference(unit_resolution,[status(thm)],[37,31]) ).

tff(39,plain,
    ( ( $sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))) != -1 )
    | $lesseq($sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))),-1) ),
    inference(theory_lemma,[status(thm)],]) ).

tff(40,plain,
    $lesseq($sum($product(2,length(nil)),$product(-1,length(append(nil,nil)))),-1),
    inference(unit_resolution,[status(thm)],[39,38]) ).

tff(41,plain,
    ( ( length(nil) = 0 )
  <=> ( length(nil) = 0 ) ),
    inference(rewrite,[status(thm)],]) ).

tff(42,axiom,
    length(nil) = 0,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l) ).

tff(43,plain,
    length(nil) = 0,
    inference(modus_ponens,[status(thm)],[42,41]) ).

tff(44,plain,
    ( ( length(nil) != 0 )
    | $greatereq(length(nil),0) ),
    inference(theory_lemma,[status(thm)],]) ).

tff(45,plain,
    $greatereq(length(nil),0),
    inference(unit_resolution,[status(thm)],[44,43]) ).

tff(46,plain,
    $false,
    inference(theory_lemma,[status(thm)],[45,40,13]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : DAT093_1 : TPTP v8.1.0. Released v6.1.0.
% 0.07/0.12  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.33  % Computer : n014.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 300
% 0.13/0.33  % DateTime : Wed Aug 31 01:51:48 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.13/0.34  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.13/0.34  Usage: tptp [options] [-file:]file
% 0.13/0.34    -h, -?       prints this message.
% 0.13/0.34    -smt2        print SMT-LIB2 benchmark.
% 0.13/0.34    -m, -model   generate model.
% 0.13/0.34    -p, -proof   generate proof.
% 0.13/0.34    -c, -core    generate unsat core of named formulas.
% 0.13/0.34    -st, -statistics display statistics.
% 0.13/0.34    -t:timeout   set timeout (in second).
% 0.13/0.34    -smt2status  display status in smt2 format instead of SZS.
% 0.13/0.34    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.13/0.34    -<param>:<value> configuration parameter and value.
% 0.13/0.34    -o:<output-file> file to place output in.
% 0.19/0.40  % SZS status Theorem
% 0.19/0.40  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------