TSTP Solution File: ALG203+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : ALG203+1 : TPTP v8.1.0. Released v2.7.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n018.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  : 600s
% DateTime : Thu Jul 14 18:02:55 EDT 2022

% Result   : Theorem 0.20s 0.48s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :    9
% Syntax   : Number of clauses     :   24 (   9 unt;   0 nHn;  24 RR)
%            Number of literals    :   56 (   0 equ;  33 neg)
%            Maximal clause size   :    6 (   2 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   4 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    sorti1(skc3),
    file('ALG203+1.p',unknown),
    [] ).

cnf(2,axiom,
    sorti1(skc2),
    file('ALG203+1.p',unknown),
    [] ).

cnf(3,axiom,
    equal(op1(skc2,skc2),skc2),
    file('ALG203+1.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ sorti1(u)
    | sorti2(h(u)) ),
    file('ALG203+1.p',unknown),
    [] ).

cnf(6,axiom,
    ~ equal(op1(skc3,skc3),skc3),
    file('ALG203+1.p',unknown),
    [] ).

cnf(8,axiom,
    ( ~ sorti1(u)
    | equal(j(h(u)),u) ),
    file('ALG203+1.p',unknown),
    [] ).

cnf(9,axiom,
    ( ~ sorti1(u)
    | ~ sorti1(v)
    | sorti1(op1(v,u)) ),
    file('ALG203+1.p',unknown),
    [] ).

cnf(11,axiom,
    ( ~ sorti1(u)
    | ~ sorti1(v)
    | equal(op2(h(v),h(u)),h(op1(v,u))) ),
    file('ALG203+1.p',unknown),
    [] ).

cnf(13,axiom,
    ( ~ sorti2(u)
    | ~ sorti2(v)
    | ~ equal(op2(v,v),v)
    | equal(op2(u,u),u) ),
    file('ALG203+1.p',unknown),
    [] ).

cnf(15,plain,
    sorti2(h(skc3)),
    inference(res,[status(thm),theory(equality)],[1,4]),
    [iquote('0:Res:1.0,4.0')] ).

cnf(17,plain,
    equal(j(h(skc3)),skc3),
    inference(res,[status(thm),theory(equality)],[1,8]),
    [iquote('0:Res:1.0,8.0')] ).

cnf(19,plain,
    ( ~ sorti1(u)
    | equal(op2(h(skc3),h(u)),h(op1(skc3,u))) ),
    inference(res,[status(thm),theory(equality)],[1,11]),
    [iquote('0:Res:1.0,11.0')] ).

cnf(105,plain,
    ( ~ sorti1(u)
    | ~ sorti1(u)
    | ~ sorti2(v)
    | ~ sorti2(h(u))
    | ~ equal(h(op1(u,u)),h(u))
    | equal(op2(v,v),v) ),
    inference(spl,[status(thm),theory(equality)],[11,13]),
    [iquote('0:SpL:11.2,13.2')] ).

cnf(107,plain,
    ( ~ sorti1(u)
    | ~ sorti2(v)
    | ~ sorti2(h(u))
    | ~ equal(h(op1(u,u)),h(u))
    | equal(op2(v,v),v) ),
    inference(obv,[status(thm),theory(equality)],[105]),
    [iquote('0:Obv:105.0')] ).

cnf(108,plain,
    ( ~ sorti1(u)
    | ~ sorti2(v)
    | ~ equal(h(op1(u,u)),h(u))
    | equal(op2(v,v),v) ),
    inference(ssi,[status(thm)],[107,4]),
    [iquote('0:SSi:107.2,4.1')] ).

cnf(415,plain,
    ( ~ sorti1(skc2)
    | ~ sorti2(u)
    | ~ equal(h(skc2),h(skc2))
    | equal(op2(u,u),u) ),
    inference(spl,[status(thm),theory(equality)],[3,108]),
    [iquote('0:SpL:3.0,108.2')] ).

cnf(419,plain,
    ( ~ sorti1(skc2)
    | ~ sorti2(u)
    | equal(op2(u,u),u) ),
    inference(obv,[status(thm),theory(equality)],[415]),
    [iquote('0:Obv:415.2')] ).

cnf(420,plain,
    ( ~ sorti2(u)
    | equal(op2(u,u),u) ),
    inference(ssi,[status(thm)],[419,2]),
    [iquote('0:SSi:419.0,2.0')] ).

cnf(427,plain,
    ( ~ sorti2(h(skc3))
    | ~ sorti1(skc3)
    | equal(h(op1(skc3,skc3)),h(skc3)) ),
    inference(spr,[status(thm),theory(equality)],[420,19]),
    [iquote('0:SpR:420.1,19.1')] ).

cnf(441,plain,
    equal(h(op1(skc3,skc3)),h(skc3)),
    inference(ssi,[status(thm)],[427,1,15]),
    [iquote('0:SSi:427.1,427.0,1.0,15.0')] ).

cnf(453,plain,
    ( ~ sorti1(op1(skc3,skc3))
    | equal(op1(skc3,skc3),j(h(skc3))) ),
    inference(spr,[status(thm),theory(equality)],[441,8]),
    [iquote('0:SpR:441.0,8.1')] ).

cnf(471,plain,
    ( ~ sorti1(op1(skc3,skc3))
    | equal(op1(skc3,skc3),skc3) ),
    inference(rew,[status(thm),theory(equality)],[17,453]),
    [iquote('0:Rew:17.0,453.1')] ).

cnf(472,plain,
    equal(op1(skc3,skc3),skc3),
    inference(ssi,[status(thm)],[471,9,1]),
    [iquote('0:SSi:471.0,9.0,1.0,1.2')] ).

cnf(473,plain,
    $false,
    inference(mrr,[status(thm)],[472,6]),
    [iquote('0:MRR:472.0,6.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : ALG203+1 : TPTP v8.1.0. Released v2.7.0.
% 0.07/0.13  % Command  : run_spass %d %s
% 0.12/0.34  % Computer : n018.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Thu Jun  9 02:23:37 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.20/0.48  
% 0.20/0.48  SPASS V 3.9 
% 0.20/0.48  SPASS beiseite: Proof found.
% 0.20/0.48  % SZS status Theorem
% 0.20/0.48  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.20/0.48  SPASS derived 291 clauses, backtracked 0 clauses, performed 0 splits and kept 126 clauses.
% 0.20/0.48  SPASS allocated 104382 KBytes.
% 0.20/0.48  SPASS spent	0:00:00.13 on the problem.
% 0.20/0.48  		0:00:00.04 for the input.
% 0.20/0.48  		0:00:00.03 for the FLOTTER CNF translation.
% 0.20/0.48  		0:00:00.00 for inferences.
% 0.20/0.48  		0:00:00.00 for the backtracking.
% 0.20/0.48  		0:00:00.03 for the reduction.
% 0.20/0.48  
% 0.20/0.48  
% 0.20/0.48  Here is a proof with depth 4, length 24 :
% 0.20/0.48  % SZS output start Refutation
% See solution above
% 0.20/0.48  Formulae used in the proof : ax3 co1 ax1 ax4
% 0.20/0.48  
%------------------------------------------------------------------------------