TSTP Solution File: NUM877_1 by Vampire---4.8

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%------------------------------------------------------------------------------
% File     : Vampire---4.8
% Problem  : NUM877_1 : TPTP v8.1.2. Released v5.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s

% Computer : n008.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 : Thu Aug 31 12:16:24 EDT 2023

% Result   : Theorem 0.21s 0.40s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   26 (  16 unt;   4 typ;   0 def)
%            Number of atoms       :   30 (  29 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   15 (   7   ~;   0   |;   4   &)
%                                         (   0 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   2 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number arithmetic     :   66 (   0 atm;  36 fun;  12 num;  18 var)
%            Number of types       :    1 (   0 usr;   1 ari)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   4 usr;   5 con; 0-2 aty)
%            Number of variables   :   18 (;  14   !;   4   ?;  18   :)

% Comments : 
%------------------------------------------------------------------------------
tff(func_def_5,type,
    sK0: $int ).

tff(func_def_6,type,
    sK1: $int ).

tff(func_def_7,type,
    sF2: $int ).

tff(func_def_8,type,
    sF3: $int ).

tff(f56,plain,
    $false,
    inference(subsumption_resolution,[],[f55,f20]) ).

tff(f20,plain,
    sK0 != sK1,
    inference(cnf_transformation,[],[f18]) ).

tff(f18,plain,
    ( ( sK0 != sK1 )
    & ( 0 = $sum(sK0,$uminus(sK1)) ) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0,sK1])],[f16,f17]) ).

tff(f17,plain,
    ( ? [X0: $int,X1: $int] :
        ( ( X0 != X1 )
        & ( 0 = $sum(X0,$uminus(X1)) ) )
   => ( ( sK0 != sK1 )
      & ( 0 = $sum(sK0,$uminus(sK1)) ) ) ),
    introduced(choice_axiom,[]) ).

tff(f16,plain,
    ? [X0: $int,X1: $int] :
      ( ( X0 != X1 )
      & ( 0 = $sum(X0,$uminus(X1)) ) ),
    inference(ennf_transformation,[],[f3]) ).

tff(f3,plain,
    ~ ! [X0: $int,X1: $int] :
        ( ( 0 = $sum(X0,$uminus(X1)) )
       => ( X0 = X1 ) ),
    inference(theory_normalization,[],[f2]) ).

tff(f2,negated_conjecture,
    ~ ! [X0: $int,X1: $int] :
        ( ( $difference(X0,X1) = 0 )
       => ( X0 = X1 ) ),
    inference(negated_conjecture,[],[f1]) ).

tff(f1,conjecture,
    ! [X0: $int,X1: $int] :
      ( ( $difference(X0,X1) = 0 )
     => ( X0 = X1 ) ),
    file('/export/starexec/sandbox2/tmp/tmp.4pxa9l7jHN/Vampire---4.8_4426',diff_identity) ).

tff(f55,plain,
    sK0 = sK1,
    inference(forward_demodulation,[],[f53,f27]) ).

tff(f27,plain,
    sK1 = $uminus(sF2),
    inference(superposition,[],[f14,f21]) ).

tff(f21,plain,
    $uminus(sK1) = sF2,
    introduced(function_definition,[]) ).

tff(f14,plain,
    ! [X0: $int] : ( $uminus($uminus(X0)) = X0 ),
    introduced(theory_axiom_151,[]) ).

tff(f53,plain,
    sK0 = $uminus(sF2),
    inference(evaluation,[],[f49]) ).

tff(f49,plain,
    $uminus(sF2) = $sum(sK0,0),
    inference(superposition,[],[f39,f8]) ).

tff(f8,plain,
    ! [X0: $int] : ( 0 = $sum(X0,$uminus(X0)) ),
    introduced(theory_axiom_143,[]) ).

tff(f39,plain,
    ! [X0: $int] : ( $sum(sK0,$sum(sF2,X0)) = X0 ),
    inference(evaluation,[],[f38]) ).

tff(f38,plain,
    ! [X0: $int] : ( $sum(sK0,$sum(sF2,X0)) = $sum(0,X0) ),
    inference(forward_demodulation,[],[f35,f23]) ).

tff(f23,plain,
    0 = sF3,
    inference(definition_folding,[],[f19,f22,f21]) ).

tff(f22,plain,
    $sum(sK0,sF2) = sF3,
    introduced(function_definition,[]) ).

tff(f19,plain,
    0 = $sum(sK0,$uminus(sK1)),
    inference(cnf_transformation,[],[f18]) ).

tff(f35,plain,
    ! [X0: $int] : ( $sum(sK0,$sum(sF2,X0)) = $sum(sF3,X0) ),
    inference(superposition,[],[f5,f22]) ).

tff(f5,plain,
    ! [X2: $int,X0: $int,X1: $int] : ( $sum(X0,$sum(X1,X2)) = $sum($sum(X0,X1),X2) ),
    introduced(theory_axiom_139,[]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : NUM877_1 : TPTP v8.1.2. Released v5.0.0.
% 0.00/0.14  % Command    : vampire --ignore_missing on --mode portfolio/casc [--schedule casc_hol_2020] -p tptp -om szs -t %d %s
% 0.14/0.35  % Computer : n008.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit   : 300
% 0.14/0.35  % WCLimit    : 300
% 0.14/0.35  % DateTime   : Fri Aug 25 11:17:32 EDT 2023
% 0.14/0.35  % CPUTime    : 
% 0.14/0.35  This is a TF0_THM_EQU_ARI problem
% 0.14/0.36  Running vampire_casc2023 --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/tmp/tmp.4pxa9l7jHN/Vampire---4.8_4426
% 0.14/0.36  % (4537)Running in auto input_syntax mode. Trying TPTP
% 0.21/0.40  % (4538)lrs+2_32_add=large:amm=off:bd=off:bs=unit_only:drc=off:flr=on:fsd=off:fde=none:nm=0:nwc=1.1:sos=theory:sp=reverse_arity:tgt=ground:stl=180_1034 on Vampire---4 for (1034ds/0Mi)
% 0.21/0.40  % (4538)First to succeed.
% 0.21/0.40  % (4538)Refutation found. Thanks to Tanya!
% 0.21/0.40  % SZS status Theorem for Vampire---4
% 0.21/0.40  % SZS output start Proof for Vampire---4
% See solution above
% 0.21/0.40  % (4538)------------------------------
% 0.21/0.40  % (4538)Version: Vampire 4.7 (commit 05ef610bd on 2023-06-21 19:03:17 +0100)
% 0.21/0.40  % (4538)Linked with Z3 4.9.1.0 6ed071b44407cf6623b8d3c0dceb2a8fb7040cee z3-4.8.4-6427-g6ed071b44
% 0.21/0.40  % (4538)Termination reason: Refutation
% 0.21/0.40  
% 0.21/0.40  % (4538)Memory used [KB]: 5500
% 0.21/0.40  % (4538)Time elapsed: 0.003 s
% 0.21/0.40  % (4538)------------------------------
% 0.21/0.40  % (4538)------------------------------
% 0.21/0.40  % (4537)Success in time 0.039 s
% 0.21/0.40  % Vampire---4.8 exiting
%------------------------------------------------------------------------------