TSTP Solution File: GRP496-1 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : GRP496-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n022.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 11:39:08 EDT 2022

% Result   : Unsatisfiable 0.37s 0.55s
% Output   : Refutation 0.37s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :    5
% Syntax   : Number of clauses     :    9 (   9 unt;   0 nHn;   3 RR)
%            Number of literals    :    9 (   8 equ;   2 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   2 con; 0-2 aty)
%            Number of variables   :   12 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(single_axiom,axiom,
    double_divide(double_divide(identity,double_divide(X,double_divide(Y,identity))),double_divide(double_divide(Y,double_divide(Z,X)),identity)) = Z,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',single_axiom) ).

cnf(multiply,axiom,
    multiply(X,Y) = double_divide(double_divide(Y,X),identity),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',multiply) ).

cnf(inverse,axiom,
    inverse(X) = double_divide(X,identity),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',inverse) ).

cnf(identity,axiom,
    identity = double_divide(X,inverse(X)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',identity) ).

cnf(prove_these_axioms_1,negated_conjecture,
    multiply(inverse(a1),a1) != identity,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_these_axioms_1) ).

cnf(6,plain,
    multiply(X,Y) = inverse(double_divide(Y,X)),
    inference('REWRITE',[status(thm)],[multiply,inverse,theory(equality)]) ).

cnf(7,plain,
    inverse(identity) != identity,
    inference('REWRITE',[status(thm)],[prove_these_axioms_1,identity,6,theory(equality)]) ).

cnf(8,plain,
    double_divide(double_divide(identity,double_divide(X,inverse(Y))),inverse(double_divide(Y,double_divide(Z,X)))) = Z,
    inference('REWRITE',[status(thm)],[single_axiom,inverse,theory(equality)]) ).

cnf(9,plain,
    $false,
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[identity,8,theory(equality)]),7]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.14  % Problem  : GRP496-1 : TPTP v8.1.0. Released v2.6.0.
% 0.14/0.15  % Command  : run-snark %s %d
% 0.14/0.36  % Computer : n022.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  : 600
% 0.14/0.36  % DateTime : Mon Jun 13 21:48:33 EDT 2022
% 0.14/0.37  % CPUTime  : 
% 0.22/0.50  /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.22/0.51  * 
% 0.22/0.51  * 
% 0.22/0.52  #<PACKAGE "SNARK-USER">
% 0.22/0.52  * 
% 0.22/0.52  SNARK-TPTP-OPTIONS
% 0.22/0.52  * 
% 0.22/0.52  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.22/0.52   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.22/0.52   (USE-FACTORING :POS)
% 0.22/0.52   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.22/0.52   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.22/0.52   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.22/0.52   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.22/0.52   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.22/0.52   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.22/0.52   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.22/0.52   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.22/0.52   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.22/0.52   (DECLARE-TPTP-SYMBOLS2))
% 0.22/0.52  * 
% 0.22/0.52  "."
% 0.22/0.52  * 
% 0.22/0.52  ; Begin refute-file /export/starexec/sandbox2/benchmark/theBenchmark.p 2022-06-13T21:48:33
% 0.22/0.52  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n022.cluster.edu at 2022-06-13T21:48:33
% 0.22/0.53  
% 0.37/0.55  ; Recognized possible right inverse assertion (= |identity| (|double_divide| ?X (|inverse| ?X))).
% 0.37/0.55  
% 0.37/0.55  #||
% 0.37/0.55  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.37/0.55  % SZS output start Refutation
% See solution above
% 0.37/0.55  ||#
% 0.37/0.55  
% 0.37/0.55  ; Summary of computation:
% 0.37/0.55  ;        18 formulas have been input or derived (from 6 formulas).
% 0.37/0.55  ;         9 (50%) were retained.  Of these,
% 0.37/0.55  ;            3 (33%) were simplified or subsumed later,
% 0.37/0.55  ;            6 (67%) are still being kept.
% 0.37/0.55  ; 
% 0.37/0.55  ; Run time in seconds excluding printing time:
% 0.37/0.55  ;     0.002   7%   Read assertion file          (1 call)
% 0.37/0.55  ;     0.000   0%   Assert                       (5 calls)
% 0.37/0.55  ;     0.002   7%   Process new row              (13 calls)
% 0.37/0.55  ;     0.001   4%   Resolution                   (10 calls)
% 0.37/0.55  ;     0.000   0%   Paramodulation               (5 calls)
% 0.37/0.55  ;     0.000   0%   Forward simplification       (13 calls)
% 0.37/0.55  ;     0.001   4%   Backward simplification      (9 calls)
% 0.37/0.55  ;     0.000   0%   Ordering                     (31 calls)
% 0.37/0.55  ;     0.000   0%   Sortal reasoning             (32 calls)
% 0.37/0.55  ;     0.000   0%   Purity testing               (1 call)
% 0.37/0.55  ;     0.022  79%   Other
% 0.37/0.55  ;     0.028        Total
% 0.37/0.55  ;     0.029        Real time
% 0.37/0.55  ; 
% 0.37/0.55  ; Term-hash-array has 30 terms in all.
% 0.37/0.55  ; Feature-vector-row-index has 0 entries (0 at peak, 0 added, 0 deleted).
% 0.37/0.55  ; Feature-vector-row-index has 1 node (1 at peak, 1 added, 0 deleted).
% 0.37/0.55  ; Path-index has 21 entries (21 at peak, 37 added, 16 deleted).
% 0.37/0.55  ; Path-index has 124 nodes (124 at peak, 162 added, 38 deleted).
% 0.37/0.55  ; Trie-index has 21 entries (21 at peak, 37 added, 16 deleted).
% 0.37/0.55  ; Trie-index has 75 nodes (75 at peak, 143 added, 68 deleted).
% 0.37/0.55  ; Retrieved 5 generalization terms in 19 calls.
% 0.37/0.55  ; Retrieved 12 instance terms in 8 calls.
% 0.37/0.55  ; Retrieved 22 unifiable terms in 30 calls.
% 0.37/0.55  ; 
% 0.37/0.55  ; The agenda of rows to process has 5 entries:
% 0.37/0.55  ;     1 with value 18              1 with value 30               1 with value 31
% 0.37/0.55  ;     2 with value 20
% 0.37/0.55  Evaluation took:
% 0.37/0.55    0.03 seconds of real time
% 0.37/0.55    0.02778 seconds of user run time
% 0.37/0.55    0.001991 seconds of system run time
% 0.37/0.55    0 calls to %EVAL
% 0.37/0.55    0 page faults and
% 0.37/0.55    1,788,808 bytes consed.
% 0.37/0.55  :PROOF-FOUND
% 0.37/0.55  ; End refute-file /export/starexec/sandbox2/benchmark/theBenchmark.p 2022-06-13T21:48:33
% 0.37/0.55  :PROOF-FOUND
% 0.37/0.55  * 
%------------------------------------------------------------------------------