TSTP Solution File: SET617+3 by ET---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : ET---2.0
% Problem  : SET617+3 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_ET %s %d

% Computer : n010.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 : Tue Jul 19 00:52:33 EDT 2022

% Result   : Theorem 0.24s 1.42s
% Output   : CNFRefutation 0.24s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   22 (  17 unt;   0 def)
%            Number of atoms       :   27 (  26 equ)
%            Maximal formula atoms :    2 (   1 avg)
%            Number of connectives :   12 (   7   ~;   3   |;   2   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    4 (   2 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   24 (   1 sgn  16   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(prove_th92,conjecture,
    ! [X1] :
      ( symmetric_difference(X1,empty_set) = X1
      & symmetric_difference(empty_set,X1) = X1 ),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',prove_th92) ).

fof(symmetric_difference_defn,axiom,
    ! [X1,X2] : symmetric_difference(X1,X2) = union(difference(X1,X2),difference(X2,X1)),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',symmetric_difference_defn) ).

fof(union_empty_set,axiom,
    ! [X1] : union(X1,empty_set) = X1,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',union_empty_set) ).

fof(commutativity_of_union,axiom,
    ! [X1,X2] : union(X1,X2) = union(X2,X1),
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',commutativity_of_union) ).

fof(no_difference_with_empty_set2,axiom,
    ! [X1] : difference(empty_set,X1) = empty_set,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',no_difference_with_empty_set2) ).

fof(no_difference_with_empty_set1,axiom,
    ! [X1] : difference(X1,empty_set) = X1,
    file('/export/starexec/sandbox2/solver/bin/../tmp/theBenchmark.p.mepo_128.in',no_difference_with_empty_set1) ).

fof(c_0_6,negated_conjecture,
    ~ ! [X1] :
        ( symmetric_difference(X1,empty_set) = X1
        & symmetric_difference(empty_set,X1) = X1 ),
    inference(assume_negation,[status(cth)],[prove_th92]) ).

fof(c_0_7,negated_conjecture,
    ( symmetric_difference(esk1_0,empty_set) != esk1_0
    | symmetric_difference(empty_set,esk2_0) != esk2_0 ),
    inference(skolemize,[status(esa)],[inference(shift_quantors,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_6])])])]) ).

fof(c_0_8,plain,
    ! [X3,X4] : symmetric_difference(X3,X4) = union(difference(X3,X4),difference(X4,X3)),
    inference(variable_rename,[status(thm)],[symmetric_difference_defn]) ).

fof(c_0_9,plain,
    ! [X2] : union(X2,empty_set) = X2,
    inference(variable_rename,[status(thm)],[union_empty_set]) ).

fof(c_0_10,plain,
    ! [X3,X4] : union(X3,X4) = union(X4,X3),
    inference(variable_rename,[status(thm)],[commutativity_of_union]) ).

cnf(c_0_11,negated_conjecture,
    ( symmetric_difference(empty_set,esk2_0) != esk2_0
    | symmetric_difference(esk1_0,empty_set) != esk1_0 ),
    inference(split_conjunct,[status(thm)],[c_0_7]) ).

cnf(c_0_12,plain,
    symmetric_difference(X1,X2) = union(difference(X1,X2),difference(X2,X1)),
    inference(split_conjunct,[status(thm)],[c_0_8]) ).

fof(c_0_13,plain,
    ! [X2] : difference(empty_set,X2) = empty_set,
    inference(variable_rename,[status(thm)],[no_difference_with_empty_set2]) ).

fof(c_0_14,plain,
    ! [X2] : difference(X2,empty_set) = X2,
    inference(variable_rename,[status(thm)],[no_difference_with_empty_set1]) ).

cnf(c_0_15,plain,
    union(X1,empty_set) = X1,
    inference(split_conjunct,[status(thm)],[c_0_9]) ).

cnf(c_0_16,plain,
    union(X1,X2) = union(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_10]) ).

cnf(c_0_17,negated_conjecture,
    ( union(difference(empty_set,esk2_0),difference(esk2_0,empty_set)) != esk2_0
    | union(difference(esk1_0,empty_set),difference(empty_set,esk1_0)) != esk1_0 ),
    inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_11,c_0_12]),c_0_12]) ).

cnf(c_0_18,plain,
    difference(empty_set,X1) = empty_set,
    inference(split_conjunct,[status(thm)],[c_0_13]) ).

cnf(c_0_19,plain,
    difference(X1,empty_set) = X1,
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_20,plain,
    union(empty_set,X1) = X1,
    inference(spm,[status(thm)],[c_0_15,c_0_16]) ).

cnf(c_0_21,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[c_0_17,c_0_18]),c_0_18]),c_0_19]),c_0_20]),c_0_19]),c_0_15])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET617+3 : TPTP v8.1.0. Released v2.2.0.
% 0.03/0.13  % Command  : run_ET %s %d
% 0.14/0.34  % Computer : n010.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 600
% 0.14/0.34  % DateTime : Sun Jul 10 07:51:00 EDT 2022
% 0.14/0.34  % CPUTime  : 
% 0.24/1.42  # Running protocol protocol_eprover_4a02c828a8cc55752123edbcc1ad40e453c11447 for 23 seconds:
% 0.24/1.42  # SinE strategy is GSinE(CountFormulas,hypos,1.4,,04,100,1.0)
% 0.24/1.42  # Preprocessing time       : 0.015 s
% 0.24/1.42  
% 0.24/1.42  # Proof found!
% 0.24/1.42  # SZS status Theorem
% 0.24/1.42  # SZS output start CNFRefutation
% See solution above
% 0.24/1.42  # Proof object total steps             : 22
% 0.24/1.42  # Proof object clause steps            : 9
% 0.24/1.42  # Proof object formula steps           : 13
% 0.24/1.42  # Proof object conjectures             : 6
% 0.24/1.42  # Proof object clause conjectures      : 3
% 0.24/1.42  # Proof object formula conjectures     : 3
% 0.24/1.42  # Proof object initial clauses used    : 6
% 0.24/1.42  # Proof object initial formulas used   : 6
% 0.24/1.42  # Proof object generating inferences   : 1
% 0.24/1.42  # Proof object simplifying inferences  : 9
% 0.24/1.42  # Training examples: 0 positive, 0 negative
% 0.24/1.42  # Parsed axioms                        : 13
% 0.24/1.42  # Removed by relevancy pruning/SinE    : 1
% 0.24/1.42  # Initial clauses                      : 19
% 0.24/1.42  # Removed in clause preprocessing      : 3
% 0.24/1.42  # Initial clauses in saturation        : 16
% 0.24/1.42  # Processed clauses                    : 21
% 0.24/1.42  # ...of these trivial                  : 2
% 0.24/1.42  # ...subsumed                          : 0
% 0.24/1.42  # ...remaining for further processing  : 18
% 0.24/1.42  # Other redundant clauses eliminated   : 2
% 0.24/1.42  # Clauses deleted for lack of memory   : 0
% 0.24/1.42  # Backward-subsumed                    : 0
% 0.24/1.42  # Backward-rewritten                   : 1
% 0.24/1.42  # Generated clauses                    : 16
% 0.24/1.42  # ...of the previous two non-trivial   : 8
% 0.24/1.42  # Contextual simplify-reflections      : 0
% 0.24/1.42  # Paramodulations                      : 12
% 0.24/1.42  # Factorizations                       : 2
% 0.24/1.42  # Equation resolutions                 : 2
% 0.24/1.42  # Current number of processed clauses  : 15
% 0.24/1.42  #    Positive orientable unit clauses  : 6
% 0.24/1.42  #    Positive unorientable unit clauses: 1
% 0.24/1.42  #    Negative unit clauses             : 1
% 0.24/1.42  #    Non-unit-clauses                  : 7
% 0.24/1.42  # Current number of unprocessed clauses: 3
% 0.24/1.42  # ...number of literals in the above   : 6
% 0.24/1.42  # Current number of archived formulas  : 0
% 0.24/1.42  # Current number of archived clauses   : 2
% 0.24/1.42  # Clause-clause subsumption calls (NU) : 2
% 0.24/1.42  # Rec. Clause-clause subsumption calls : 2
% 0.24/1.42  # Non-unit clause-clause subsumptions  : 0
% 0.24/1.42  # Unit Clause-clause subsumption calls : 0
% 0.24/1.42  # Rewrite failures with RHS unbound    : 0
% 0.24/1.42  # BW rewrite match attempts            : 4
% 0.24/1.42  # BW rewrite match successes           : 4
% 0.24/1.42  # Condensation attempts                : 0
% 0.24/1.42  # Condensation successes               : 0
% 0.24/1.42  # Termbank termtop insertions          : 974
% 0.24/1.42  
% 0.24/1.42  # -------------------------------------------------
% 0.24/1.42  # User time                : 0.014 s
% 0.24/1.42  # System time              : 0.002 s
% 0.24/1.42  # Total time               : 0.016 s
% 0.24/1.42  # Maximum resident set size: 2776 pages
%------------------------------------------------------------------------------