TSTP Solution File: HEN012-3 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : HEN012-3 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n013.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 : Sat Jul 16 13:03:16 EDT 2022

% Result   : Unsatisfiable 0.19s 0.43s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    7
% Syntax   : Number of clauses     :   18 (  10 unt;   0 nHn;  18 RR)
%            Number of literals    :   28 (   0 equ;  12 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   5 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ less_equal(a,a),
    file('HEN012-3.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ less_equal(u,v)
    | equal(divide(u,v),zero) ),
    file('HEN012-3.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ equal(divide(u,v),zero)
    | less_equal(u,v) ),
    file('HEN012-3.p',unknown),
    [] ).

cnf(4,axiom,
    less_equal(divide(u,v),u),
    file('HEN012-3.p',unknown),
    [] ).

cnf(5,axiom,
    less_equal(divide(divide(u,v),divide(w,v)),divide(divide(u,w),v)),
    file('HEN012-3.p',unknown),
    [] ).

cnf(6,axiom,
    less_equal(zero,u),
    file('HEN012-3.p',unknown),
    [] ).

cnf(7,axiom,
    ( ~ less_equal(u,v)
    | ~ less_equal(v,u)
    | equal(v,u) ),
    file('HEN012-3.p',unknown),
    [] ).

cnf(9,plain,
    ~ equal(divide(a,a),zero),
    inference(res,[status(thm),theory(equality)],[3,1]),
    [iquote('0:Res:3.1,1.0')] ).

cnf(15,plain,
    ( ~ less_equal(u,zero)
    | equal(u,zero) ),
    inference(res,[status(thm),theory(equality)],[6,7]),
    [iquote('0:Res:6.0,7.0')] ).

cnf(19,plain,
    equal(divide(zero,u),zero),
    inference(res,[status(thm),theory(equality)],[4,15]),
    [iquote('0:Res:4.0,15.0')] ).

cnf(32,plain,
    less_equal(divide(divide(u,v),zero),divide(divide(u,zero),v)),
    inference(spr,[status(thm),theory(equality)],[19,5]),
    [iquote('0:SpR:19.0,5.0')] ).

cnf(40,plain,
    ( ~ less_equal(divide(u,zero),v)
    | less_equal(divide(divide(u,v),zero),zero) ),
    inference(spr,[status(thm),theory(equality)],[2,32]),
    [iquote('0:SpR:2.1,32.0')] ).

cnf(202,plain,
    ( ~ less_equal(divide(u,zero),v)
    | equal(divide(divide(u,v),zero),zero) ),
    inference(res,[status(thm),theory(equality)],[40,15]),
    [iquote('0:Res:40.1,15.0')] ).

cnf(239,plain,
    ( ~ less_equal(divide(u,zero),v)
    | ~ equal(zero,zero)
    | less_equal(divide(u,v),zero) ),
    inference(spl,[status(thm),theory(equality)],[202,3]),
    [iquote('0:SpL:202.1,3.0')] ).

cnf(242,plain,
    ( ~ less_equal(divide(u,zero),v)
    | less_equal(divide(u,v),zero) ),
    inference(obv,[status(thm),theory(equality)],[239]),
    [iquote('0:Obv:239.1')] ).

cnf(252,plain,
    less_equal(divide(u,u),zero),
    inference(res,[status(thm),theory(equality)],[4,242]),
    [iquote('0:Res:4.0,242.0')] ).

cnf(323,plain,
    equal(divide(u,u),zero),
    inference(res,[status(thm),theory(equality)],[252,15]),
    [iquote('0:Res:252.0,15.0')] ).

cnf(326,plain,
    $false,
    inference(unc,[status(thm)],[323,9]),
    [iquote('0:UnC:323.0,9.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : HEN012-3 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n013.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Fri Jul  1 12:56:44 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.19/0.43  
% 0.19/0.43  SPASS V 3.9 
% 0.19/0.43  SPASS beiseite: Proof found.
% 0.19/0.43  % SZS status Theorem
% 0.19/0.43  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.43  SPASS derived 240 clauses, backtracked 0 clauses, performed 0 splits and kept 68 clauses.
% 0.19/0.43  SPASS allocated 63303 KBytes.
% 0.19/0.43  SPASS spent	0:00:00.08 on the problem.
% 0.19/0.43  		0:00:00.04 for the input.
% 0.19/0.43  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.43  		0:00:00.00 for inferences.
% 0.19/0.43  		0:00:00.00 for the backtracking.
% 0.19/0.43  		0:00:00.01 for the reduction.
% 0.19/0.43  
% 0.19/0.43  
% 0.19/0.43  Here is a proof with depth 8, length 18 :
% 0.19/0.43  % SZS output start Refutation
% See solution above
% 0.19/0.43  Formulae used in the proof : prove_a_LE_a quotient_less_equal1 quotient_less_equal2 quotient_smaller_than_numerator quotient_property zero_is_smallest less_equal_and_equal
% 0.19/0.43  
%------------------------------------------------------------------------------