TSTP Solution File: HEN004-5 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : HEN004-5 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n015.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 13:02:21 EDT 2022

% Result   : Unsatisfiable 0.19s 0.52s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :    6
% Syntax   : Number of clauses     :   12 (  11 unt;   0 nHn;   6 RR)
%            Number of literals    :   14 (  13 equ;   6 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   12 (   2 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(quotient_smaller_than_numerator,axiom,
    divide(divide(X,Y),X) = zero,
    file('/export/starexec/sandbox2/benchmark/Axioms/HEN003-0.ax',quotient_smaller_than_numerator) ).

cnf(quotient_property,axiom,
    divide(divide(divide(X,Y),divide(Z,Y)),divide(divide(X,Z),Y)) = zero,
    file('/export/starexec/sandbox2/benchmark/Axioms/HEN003-0.ax',quotient_property) ).

cnf(zero_is_smallest,axiom,
    divide(zero,X) = zero,
    file('/export/starexec/sandbox2/benchmark/Axioms/HEN003-0.ax',zero_is_smallest) ).

cnf(divide_and_equal,axiom,
    ( divide(X,Y) != zero
    | divide(Y,X) != zero
    | X = Y ),
    file('/export/starexec/sandbox2/benchmark/Axioms/HEN003-0.ax',divide_and_equal) ).

cnf(x_divide_x_is_zero,axiom,
    divide(X,X) = zero,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',x_divide_x_is_zero) ).

cnf(prove_x_divide_zero_is_x,negated_conjecture,
    divide(a,zero) != a,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_x_divide_zero_is_x) ).

cnf(8,plain,
    divide(a,divide(a,zero)) != zero,
    inference('UR-RESOLVE',[status(thm)],[divide_and_equal,quotient_smaller_than_numerator,prove_x_divide_zero_is_x]) ).

cnf(12,plain,
    divide(divide(divide(X,Y),zero),divide(divide(X,zero),Y)) = zero,
    inference('PARAMODULATE',[status(thm)],[quotient_property,zero_is_smallest,theory(equality)]) ).

cnf(22,plain,
    divide(divide(a,divide(a,zero)),zero) != zero,
    inference('UR-RESOLVE',[status(thm)],[divide_and_equal,8,zero_is_smallest]) ).

cnf(23,plain,
    divide(divide(divide(a,divide(a,zero)),zero),zero) != zero,
    inference('UR-RESOLVE',[status(thm)],[divide_and_equal,22,zero_is_smallest]) ).

cnf(29,plain,
    divide(divide(divide(X,divide(X,zero)),zero),zero) = zero,
    inference('PARAMODULATE',[status(thm)],[12,x_divide_x_is_zero,theory(equality)]) ).

cnf(30,plain,
    $false,
    inference('REWRITE',[status(thm)],[23,29,theory(equality)]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : HEN004-5 : TPTP v8.1.0. Released v1.0.0.
% 0.10/0.13  % Command  : run-snark %s %d
% 0.13/0.34  % Computer : n015.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 14:02:58 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.46  /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.19/0.47  * 
% 0.19/0.47  * 
% 0.19/0.48  #<PACKAGE "SNARK-USER">
% 0.19/0.48  * 
% 0.19/0.48  SNARK-TPTP-OPTIONS
% 0.19/0.48  * 
% 0.19/0.48  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.19/0.48   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.19/0.48   (USE-FACTORING :POS)
% 0.19/0.48   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.19/0.48   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.19/0.48   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.19/0.48   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.19/0.48   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.19/0.48   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.19/0.48   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.19/0.48   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.19/0.48   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.19/0.48   (DECLARE-TPTP-SYMBOLS2))
% 0.19/0.48  * 
% 0.19/0.48  "."
% 0.19/0.48  * 
% 0.19/0.48  ; Begin refute-file /export/starexec/sandbox2/benchmark/theBenchmark.p 2022-07-01T14:02:58
% 0.19/0.48  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n015.cluster.edu at 2022-07-01T14:02:58
% 0.19/0.52  
% 0.19/0.52  
% 0.19/0.52  #||
% 0.19/0.52  % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.19/0.52  % SZS output start Refutation
% See solution above
% 0.19/0.52  ||#
% 0.19/0.52  
% 0.19/0.52  ; Summary of computation:
% 0.19/0.52  ;       193 formulas have been input or derived (from 16 formulas).
% 0.19/0.52  ;        30 (16%) were retained.  Of these,
% 0.19/0.52  ;            2 ( 7%) were simplified or subsumed later,
% 0.19/0.52  ;           28 (93%) are still being kept.
% 0.19/0.52  ; 
% 0.19/0.52  ; Run time in seconds excluding printing time:
% 0.19/0.52  ;     0.002   5%   Read assertion file          (1 call)
% 0.19/0.52  ;     0.001   2%   Assert                       (7 calls)
% 0.19/0.52  ;     0.006  15%   Process new row              (136 calls)
% 0.19/0.52  ;     0.001   2%   Resolution                   (30 calls)
% 0.19/0.52  ;     0.003   7%   Paramodulation               (15 calls)
% 0.19/0.52  ;     0.000   0%   Condensing                   (14 calls)
% 0.19/0.52  ;     0.000   0%   Forward subsumption          (14 calls)
% 0.19/0.52  ;     0.000   0%   Backward subsumption         (6 calls)
% 0.19/0.52  ;     0.000   0%   Clause clause subsumption    (10 calls)
% 0.19/0.52  ;     0.002   5%   Forward simplification       (124 calls)
% 0.19/0.52  ;     0.001   2%   Backward simplification      (30 calls)
% 0.19/0.52  ;     0.001   2%   Ordering                     (189 calls)
% 0.19/0.52  ;     0.000   0%   Sortal reasoning             (32 calls)
% 0.19/0.52  ;     0.000   0%   Purity testing               (1 call)
% 0.19/0.52  ;     0.024  59%   Other
% 0.19/0.52  ;     0.041        Total
% 0.19/0.52  ;     0.043        Real time
% 0.19/0.52  ; 
% 0.19/0.52  ; Term-hash-array has 106 terms in all.
% 0.19/0.52  ; Feature-vector-row-index has 6 entries (6 at peak, 6 added, 0 deleted).
% 0.19/0.52  ; Feature-vector-row-index has 37 nodes (37 at peak, 37 added, 0 deleted).
% 0.19/0.52  ;  Retrieved 13 possibly forward subsuming rows in 14 calls.
% 0.19/0.52  ;  Retrieved 0 possibly backward subsumed rows in 6 calls.
% 0.19/0.52  ; Path-index has 105 entries (107 at peak, 109 added, 4 deleted).
% 0.19/0.52  ; Path-index has 254 nodes (258 at peak, 260 added, 6 deleted).
% 0.19/0.52  ; Trie-index has 105 entries (107 at peak, 109 added, 4 deleted).
% 0.19/0.52  ; Trie-index has 447 nodes (460 at peak, 467 added, 20 deleted).
% 0.19/0.52  ; Retrieved 354 generalization terms in 366 calls.
% 0.19/0.52  ; Retrieved 35 instance terms in 23 calls.
% 0.19/0.52  ; Retrieved 788 unifiable terms in 175 calls.
% 0.19/0.52  ; 
% 0.19/0.52  ; The agenda of rows to process has 15 entries:
% 0.19/0.52  ;     2 with value 19              1 with value 25               2 with value 33
% 0.19/0.52  ;     3 with value 20              1 with value 27               1 with value 37
% 0.19/0.52  ;     2 with value 23              3 with value 29
% 0.19/0.52  ; The agenda of rows to give has 13 entries:
% 0.19/0.52  ;     2 with value (4 18)          1 with value (4 24)           1 with value (4 30)
% 0.19/0.52  ;     1 with value (4 19)          1 with value (4 27)           1 with value (4 34)
% 0.19/0.52  ;     2 with value (4 21)          1 with value (4 28)           1 with value (4 36)
% 0.19/0.52  ;     2 with value (4 23)
% 0.19/0.52  Evaluation took:
% 0.19/0.52    0.043 seconds of real time
% 0.19/0.52    0.034969 seconds of user run time
% 0.19/0.52    0.008059 seconds of system run time
% 0.19/0.52    0 calls to %EVAL
% 0.19/0.52    0 page faults and
% 0.19/0.52    2,558,792 bytes consed.
% 0.19/0.52  :PROOF-FOUND
% 0.19/0.52  ; End refute-file /export/starexec/sandbox2/benchmark/theBenchmark.p 2022-07-01T14:02:58
% 0.19/0.52  :PROOF-FOUND
% 0.19/0.52  * 
%------------------------------------------------------------------------------