TSTP Solution File: HEN011-4 by Leo-III---1.7.7

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%------------------------------------------------------------------------------
% File     : Leo-III---1.7.7
% Problem  : HEN011-4 : TPTP v8.1.2. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_Leo-III %s %d

% Computer : n021.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 May 19 11:16:56 EDT 2023

% Result   : Unsatisfiable 4.49s 1.95s
% Output   : Refutation 4.49s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :   24
% Syntax   : Number of formulae    :   43 (  23 unt;   6 typ;   0 def)
%            Number of atoms       :   55 (  20 equ;   0 cnn)
%            Maximal formula atoms :    3 (   1 avg)
%            Number of connectives :  246 (  20   ~;  18   |;   0   &; 208   @)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   5 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    4 (   4   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :    8 (   6 usr;   5 con; 0-2 aty)
%            Number of variables   :   60 (   0   ^;  60   !;   0   ?;  60   :)

% Comments : 
%------------------------------------------------------------------------------
thf(divide_type,type,
    divide: $i > $i > $i ).

thf(identity_type,type,
    identity: $i ).

thf(a_type,type,
    a: $i ).

thf(b_type,type,
    b: $i ).

thf(less_equal_type,type,
    less_equal: $i > $i > $o ).

thf(zero_type,type,
    zero: $i ).

thf(15,axiom,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( ( divide @ A @ B )
        = zero ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_less_equal1) ).

thf(46,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( ( divide @ A @ B )
        = zero ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).

thf(18,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( less_equal @ ( divide @ A @ C ) @ ( divide @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_divide3) ).

thf(53,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( less_equal @ ( divide @ A @ C ) @ ( divide @ B @ C ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).

thf(16,axiom,
    ! [A: $i] :
      ( ( divide @ zero @ A )
      = zero ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_divide_anything_is_zero) ).

thf(49,plain,
    ! [A: $i] :
      ( ( divide @ zero @ A )
      = zero ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).

thf(8,axiom,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_smaller_than_numerator) ).

thf(35,plain,
    ! [B: $i,A: $i] : ( less_equal @ ( divide @ A @ B ) @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).

thf(13,axiom,
    ! [A: $i] : ( less_equal @ A @ identity ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',identity_is_largest) ).

thf(43,plain,
    ! [A: $i] : ( less_equal @ A @ identity ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).

thf(12,axiom,
    ! [C: $i,B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ A @ B ) @ ( divide @ C @ B ) ) @ ( divide @ ( divide @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_property) ).

thf(42,plain,
    ! [C: $i,B: $i,A: $i] : ( less_equal @ ( divide @ ( divide @ A @ B ) @ ( divide @ C @ B ) ) @ ( divide @ ( divide @ A @ C ) @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).

thf(4,axiom,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',less_equal_and_equal) ).

thf(25,plain,
    ! [B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ A )
      | ( A = B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).

thf(7,axiom,
    ( ( divide @ a @ zero )
    = a ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',x_divide_zero_is_x) ).

thf(33,plain,
    ( ( divide @ a @ zero )
    = a ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).

thf(5,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ ( divide @ A @ B ) @ C )
      | ( less_equal @ ( divide @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_divide1) ).

thf(28,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ ( divide @ A @ B ) @ C )
      | ( less_equal @ ( divide @ A @ C ) @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).

thf(10,axiom,
    ! [A: $i] :
      ( ( divide @ A @ A )
      = zero ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',x_divide_x_is_zero) ).

thf(38,plain,
    ! [A: $i] :
      ( ( divide @ A @ A )
      = zero ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).

thf(2,axiom,
    ! [A: $i] : ( less_equal @ zero @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_is_smallest) ).

thf(22,plain,
    ! [A: $i] : ( less_equal @ zero @ A ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).

thf(14,axiom,
    ! [A: $i] :
      ( ( divide @ A @ identity )
      = zero ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',everything_divide_id_is_zero) ).

thf(44,plain,
    ! [A: $i] :
      ( ( divide @ A @ identity )
      = zero ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).

thf(11,axiom,
    ! [A: $i] :
      ( ( divide @ ( divide @ identity @ A ) @ ( divide @ identity @ ( divide @ identity @ A ) ) )
      = ( divide @ identity @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_inversion) ).

thf(40,plain,
    ! [A: $i] :
      ( ( divide @ ( divide @ identity @ A ) @ ( divide @ identity @ ( divide @ identity @ A ) ) )
      = ( divide @ identity @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).

thf(3,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ C )
      | ( less_equal @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',transitivity_of_less_equal) ).

thf(23,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ~ ( less_equal @ B @ C )
      | ( less_equal @ A @ C ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).

thf(9,axiom,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( less_equal @ ( divide @ C @ B ) @ ( divide @ C @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_divide2) ).

thf(36,plain,
    ! [C: $i,B: $i,A: $i] :
      ( ~ ( less_equal @ A @ B )
      | ( less_equal @ ( divide @ C @ B ) @ ( divide @ C @ A ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).

thf(6,axiom,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',quotient_less_equal2) ).

thf(30,plain,
    ! [B: $i,A: $i] :
      ( ( ( divide @ A @ B )
       != zero )
      | ( less_equal @ A @ B ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).

thf(17,axiom,
    ! [A: $i] :
      ( ( divide @ identity @ ( divide @ identity @ ( divide @ identity @ A ) ) )
      = ( divide @ identity @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',one_inversion_equals_three) ).

thf(51,plain,
    ! [A: $i] :
      ( ( divide @ identity @ ( divide @ identity @ ( divide @ identity @ A ) ) )
      = ( divide @ identity @ A ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).

thf(1,negated_conjecture,
    ( ( divide @ ( divide @ identity @ a ) @ ( divide @ identity @ ( divide @ identity @ b ) ) )
   != ( divide @ ( divide @ identity @ b ) @ ( divide @ identity @ ( divide @ identity @ a ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_this) ).

thf(19,plain,
    ( ( divide @ ( divide @ identity @ a ) @ ( divide @ identity @ ( divide @ identity @ b ) ) )
   != ( divide @ ( divide @ identity @ b ) @ ( divide @ identity @ ( divide @ identity @ a ) ) ) ),
    inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).

thf(248,plain,
    $false,
    inference(e,[status(thm)],[46,53,49,35,43,42,25,33,28,38,22,44,40,23,36,30,51,19]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : HEN011-4 : TPTP v8.1.2. Bugfixed v1.2.1.
% 0.12/0.15  % Command  : run_Leo-III %s %d
% 0.14/0.36  % Computer : n021.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit : 300
% 0.14/0.36  % WCLimit  : 300
% 0.14/0.36  % DateTime : Thu May 18 15:15:13 EDT 2023
% 0.14/0.36  % CPUTime  : 
% 0.82/0.83  % [INFO] 	 Parsing problem /export/starexec/sandbox/benchmark/theBenchmark.p ... 
% 1.25/0.95  % [INFO] 	 Parsing done (116ms). 
% 1.25/0.96  % [INFO] 	 Running in sequential loop mode. 
% 1.55/1.16  % [INFO] 	 eprover registered as external prover. 
% 1.55/1.16  % [INFO] 	 cvc4 registered as external prover. 
% 1.55/1.16  % [INFO] 	 Scanning for conjecture ... 
% 1.85/1.22  % [INFO] 	 Found a conjecture and 17 axioms. Running axiom selection ... 
% 1.92/1.25  % [INFO] 	 Axiom selection finished. Selected 17 axioms (removed 0 axioms). 
% 1.92/1.27  % [INFO] 	 Problem is propositional (TPTP CNF). 
% 1.92/1.27  % [INFO] 	 Type checking passed. 
% 1.92/1.28  % [CONFIG] 	 Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>.  Searching for refutation ... 
% 4.49/1.95  % External prover 'e' found a proof!
% 4.49/1.95  % [INFO] 	 Killing All external provers ... 
% 4.49/1.95  % Time passed: 1436ms (effective reasoning time: 985ms)
% 4.49/1.95  % Solved by strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>
% 4.49/1.95  % Axioms used in derivation (17): property_of_inversion, identity_is_largest, x_divide_x_is_zero, property_of_divide2, zero_divide_anything_is_zero, property_of_divide1, everything_divide_id_is_zero, quotient_less_equal2, less_equal_and_equal, zero_is_smallest, x_divide_zero_is_x, quotient_less_equal1, transitivity_of_less_equal, quotient_smaller_than_numerator, quotient_property, one_inversion_equals_three, property_of_divide3
% 4.49/1.95  % No. of inferences in proof: 37
% 4.49/1.95  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : 1436 ms resp. 985 ms w/o parsing
% 4.49/1.97  % SZS output start Refutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 4.49/1.97  % [INFO] 	 Killing All external provers ... 
%------------------------------------------------------------------------------