TSTP Solution File: SET072-6 by SnakeForV---1.0

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%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : SET072-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s

% Computer : n023.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 : Wed Aug 31 18:18:56 EDT 2022

% Result   : Unsatisfiable 1.84s 0.60s
% Output   : Refutation 1.84s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   27 (   8 unt;   0 def)
%            Number of atoms       :   51 (  13 equ)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :   45 (  21   ~;  22   |;   0   &)
%                                         (   2 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   3 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   4 con; 0-2 aty)
%            Number of variables   :   14 (  14   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f155,plain,
    $false,
    inference(avatar_sat_refutation,[],[f117,f119,f154]) ).

fof(f154,plain,
    ~ spl0_1,
    inference(avatar_contradiction_clause,[],[f153]) ).

fof(f153,plain,
    ( $false
    | ~ spl0_1 ),
    inference(subsumption_resolution,[],[f152,f103]) ).

fof(f103,plain,
    member(x,universal_class),
    inference(resolution,[],[f93,f14]) ).

fof(f14,axiom,
    ! [X2,X3,X0,X1] :
      ( ~ member(ordered_pair(X2,X3),cross_product(X0,X1))
      | member(X2,X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product1) ).

fof(f93,axiom,
    member(ordered_pair(x,y),cross_product(universal_class,universal_class)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_right_cancellation_2) ).

fof(f152,plain,
    ( ~ member(x,universal_class)
    | ~ spl0_1 ),
    inference(subsumption_resolution,[],[f151,f94]) ).

fof(f94,axiom,
    x != y,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_right_cancellation_3) ).

fof(f151,plain,
    ( x = y
    | ~ member(x,universal_class)
    | ~ spl0_1 ),
    inference(subsumption_resolution,[],[f143,f127]) ).

fof(f127,plain,
    ( x != z
    | ~ spl0_1 ),
    inference(superposition,[],[f94,f122]) ).

fof(f122,plain,
    ( z = y
    | ~ spl0_1 ),
    inference(subsumption_resolution,[],[f120,f94]) ).

fof(f120,plain,
    ( x = y
    | z = y
    | ~ spl0_1 ),
    inference(resolution,[],[f112,f8]) ).

fof(f8,axiom,
    ! [X2,X0,X1] :
      ( ~ member(X2,unordered_pair(X0,X1))
      | X1 = X2
      | X0 = X2 ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair_member) ).

fof(f112,plain,
    ( member(y,unordered_pair(x,z))
    | ~ spl0_1 ),
    inference(avatar_component_clause,[],[f110]) ).

fof(f110,plain,
    ( spl0_1
  <=> member(y,unordered_pair(x,z)) ),
    introduced(avatar_definition,[new_symbols(naming,[spl0_1])]) ).

fof(f143,plain,
    ( x = z
    | x = y
    | ~ member(x,universal_class) ),
    inference(resolution,[],[f99,f9]) ).

fof(f9,axiom,
    ! [X0,X1] :
      ( member(X0,unordered_pair(X0,X1))
      | ~ member(X0,universal_class) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',unordered_pair2) ).

fof(f99,plain,
    ! [X0] :
      ( ~ member(X0,unordered_pair(x,z))
      | y = X0
      | z = X0 ),
    inference(superposition,[],[f8,f92]) ).

fof(f92,axiom,
    unordered_pair(x,z) = unordered_pair(y,z),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_right_cancellation_1) ).

fof(f119,plain,
    spl0_2,
    inference(avatar_contradiction_clause,[],[f118]) ).

fof(f118,plain,
    ( $false
    | spl0_2 ),
    inference(subsumption_resolution,[],[f116,f104]) ).

fof(f104,plain,
    member(y,universal_class),
    inference(resolution,[],[f93,f15]) ).

fof(f15,axiom,
    ! [X2,X3,X0,X1] :
      ( ~ member(ordered_pair(X2,X3),cross_product(X0,X1))
      | member(X3,X1) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',cartesian_product2) ).

fof(f116,plain,
    ( ~ member(y,universal_class)
    | spl0_2 ),
    inference(avatar_component_clause,[],[f114]) ).

fof(f114,plain,
    ( spl0_2
  <=> member(y,universal_class) ),
    introduced(avatar_definition,[new_symbols(naming,[spl0_2])]) ).

fof(f117,plain,
    ( spl0_1
    | ~ spl0_2 ),
    inference(avatar_split_clause,[],[f100,f114,f110]) ).

fof(f100,plain,
    ( ~ member(y,universal_class)
    | member(y,unordered_pair(x,z)) ),
    inference(superposition,[],[f9,f92]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem    : SET072-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.03/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.14/0.35  % Computer : n023.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   : Tue Aug 30 13:29:35 EDT 2022
% 0.14/0.35  % CPUTime    : 
% 1.46/0.58  % (13941)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=49:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/49Mi)
% 1.46/0.58  % (13944)lrs+1010_1:1_bd=off:fd=off:fde=none:ins=3:sac=on:sos=on:spb=goal:to=lpo:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/51Mi)
% 1.46/0.58  % (13944)First to succeed.
% 1.84/0.60  % (13944)Refutation found. Thanks to Tanya!
% 1.84/0.60  % SZS status Unsatisfiable for theBenchmark
% 1.84/0.60  % SZS output start Proof for theBenchmark
% See solution above
% 1.84/0.60  % (13944)------------------------------
% 1.84/0.60  % (13944)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.84/0.60  % (13944)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.84/0.60  % (13944)Termination reason: Refutation
% 1.84/0.60  
% 1.84/0.60  % (13944)Memory used [KB]: 6012
% 1.84/0.60  % (13944)Time elapsed: 0.146 s
% 1.84/0.60  % (13944)Instructions burned: 4 (million)
% 1.84/0.60  % (13944)------------------------------
% 1.84/0.60  % (13944)------------------------------
% 1.84/0.60  % (13934)Success in time 0.24 s
%------------------------------------------------------------------------------