TSTP Solution File: HEN004-4 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : HEN004-4 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n006.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 0.50s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    5
%            Number of leaves      :    8
% Syntax   : Number of clauses     :   16 (  14 unt;   0 nHn;   8 RR)
%            Number of literals    :   19 (   8 equ;   8 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   16 (   3 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(quotient_less_equal2,axiom,
    ( divide(X,Y) != zero
    | less_equal(X,Y) ),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal2) ).

cnf(quotient_smaller_than_numerator,axiom,
    less_equal(divide(X,Y),X),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_smaller_than_numerator) ).

cnf(quotient_property,axiom,
    less_equal(divide(divide(X,Y),divide(Z,Y)),divide(divide(X,Z),Y)),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_property) ).

cnf(zero_is_smallest,axiom,
    less_equal(zero,X),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',zero_is_smallest) ).

cnf(less_equal_and_equal,axiom,
    ( ~ less_equal(X,Y)
    | ~ less_equal(Y,X)
    | X = Y ),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',less_equal_and_equal) ).

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

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

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

cnf(14,plain,
    ~ less_equal(a,divide(a,zero)),
    inference('UR-RESOLVE',[status(thm)],[less_equal_and_equal,quotient_smaller_than_numerator,prove_x_divide_zero_is_x]) ).

cnf(15,plain,
    less_equal(divide(divide(X,Y),zero),divide(divide(X,zero),Y)),
    inference('PARAMODULATE',[status(thm)],[quotient_property,zero_divide_anything_is_zero,theory(equality)]) ).

cnf(20,plain,
    divide(a,divide(a,zero)) != zero,
    inference('UR-RESOLVE',[status(thm)],[quotient_less_equal2,14]) ).

cnf(23,plain,
    ~ less_equal(divide(a,divide(a,zero)),zero),
    inference('UR-RESOLVE',[status(thm)],[less_equal_and_equal,20,zero_is_smallest]) ).

cnf(25,plain,
    divide(divide(a,divide(a,zero)),zero) != zero,
    inference('UR-RESOLVE',[status(thm)],[quotient_less_equal2,23]) ).

cnf(30,plain,
    less_equal(divide(divide(X,divide(X,zero)),zero),zero),
    inference('PARAMODULATE',[status(thm)],[15,x_divide_x_is_zero,theory(equality)]) ).

cnf(34,plain,
    divide(divide(X,divide(X,zero)),zero) = zero,
    inference('HYPERRESOLVE',[status(thm)],[less_equal_and_equal,30,zero_is_smallest]) ).

cnf(35,plain,
    $false,
    inference('REWRITE',[status(thm)],[25,34,theory(equality)]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : HEN004-4 : TPTP v8.1.0. Released v1.0.0.
% 0.04/0.13  % Command  : run-snark %s %d
% 0.13/0.34  % Computer : n006.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 14:53:07 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.19/0.45  /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.19/0.46  * 
% 0.19/0.46  * 
% 0.19/0.46  #<PACKAGE "SNARK-USER">
% 0.19/0.46  * 
% 0.19/0.46  SNARK-TPTP-OPTIONS
% 0.19/0.46  * 
% 0.19/0.46  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.19/0.46   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.19/0.46   (USE-FACTORING :POS)
% 0.19/0.46   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.19/0.46   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.19/0.46   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.19/0.46   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.19/0.46   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.19/0.46   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.19/0.46   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.19/0.46   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.19/0.46   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.19/0.47   (DECLARE-TPTP-SYMBOLS2))
% 0.19/0.47  * 
% 0.19/0.47  "."
% 0.19/0.47  * 
% 0.19/0.47  ; Begin refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-07-01T14:53:08
% 0.19/0.47  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n006.cluster.edu at 2022-07-01T14:53:08
% 0.19/0.50  
% 0.19/0.50  
% 0.19/0.50  #||
% 0.19/0.50  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.19/0.50  % SZS output start Refutation
% See solution above
% 0.19/0.51  ||#
% 0.19/0.51  
% 0.19/0.51  ; Summary of computation:
% 0.19/0.51  ;       203 formulas have been input or derived (from 23 formulas).
% 0.19/0.51  ;        35 (17%) were retained.  Of these,
% 0.19/0.51  ;            3 ( 9%) were simplified or subsumed later,
% 0.19/0.51  ;           32 (91%) are still being kept.
% 0.19/0.51  ; 
% 0.19/0.51  ; Run time in seconds excluding printing time:
% 0.19/0.51  ;     0.002   5%   Read assertion file          (1 call)
% 0.19/0.51  ;     0.000   0%   Assert                       (11 calls)
% 0.19/0.51  ;     0.003   8%   Process new row              (161 calls)
% 0.19/0.51  ;     0.006  16%   Resolution                   (44 calls)
% 0.19/0.51  ;     0.001   3%   Paramodulation               (22 calls)
% 0.19/0.51  ;     0.001   3%   Condensing                   (3 calls)
% 0.19/0.51  ;     0.000   0%   Forward subsumption          (3 calls)
% 0.19/0.51  ;     0.000   0%   Backward subsumption         (3 calls)
% 0.19/0.51  ;     0.003   8%   Forward simplification       (160 calls)
% 0.19/0.51  ;     0.000   0%   Backward simplification      (35 calls)
% 0.19/0.51  ;     0.000   0%   Ordering                     (124 calls)
% 0.19/0.51  ;     0.000   0%   Sortal reasoning             (32 calls)
% 0.19/0.51  ;     0.000   0%   Purity testing               (1 call)
% 0.19/0.51  ;     0.022  58%   Other
% 0.19/0.51  ;     0.038        Total
% 0.19/0.51  ;     0.041        Real time
% 0.19/0.51  ; 
% 0.19/0.51  ; Term-hash-array has 77 terms in all.
% 0.19/0.51  ; Feature-vector-row-index has 3 entries (3 at peak, 3 added, 0 deleted).
% 0.19/0.51  ; Feature-vector-row-index has 11 nodes (11 at peak, 11 added, 0 deleted).
% 0.19/0.51  ;  Retrieved 0 possibly forward subsuming rows in 3 calls.
% 0.19/0.51  ;  Retrieved 0 possibly backward subsumed rows in 3 calls.
% 0.19/0.51  ; Path-index has 76 entries (79 at peak, 80 added, 4 deleted).
% 0.19/0.51  ; Path-index has 171 nodes (175 at peak, 176 added, 5 deleted).
% 0.19/0.51  ; Trie-index has 76 entries (79 at peak, 80 added, 4 deleted).
% 0.19/0.51  ; Trie-index has 234 nodes (248 at peak, 251 added, 17 deleted).
% 0.19/0.51  ; Retrieved 388 generalization terms in 330 calls.
% 0.19/0.51  ; Retrieved 50 instance terms in 31 calls.
% 0.19/0.51  ; Retrieved 592 unifiable terms in 228 calls.
% 0.19/0.51  ; 
% 0.19/0.51  ; The agenda of rows to process has 2 entries:
% 0.19/0.51  ;     1 with value 16              1 with value 19
% 0.19/0.51  ; The agenda of rows to give has 11 entries:
% 0.19/0.51  ;     2 with value (4 16)          1 with value (4 18)           3 with value (4 20)
% 0.19/0.51  ;     1 with value (4 17)          3 with value (4 19)           1 with value (4 24)
% 0.19/0.51  Evaluation took:
% 0.19/0.51    0.041 seconds of real time
% 0.19/0.51    0.034338 seconds of user run time
% 0.19/0.51    0.006338 seconds of system run time
% 0.19/0.51    0 calls to %EVAL
% 0.19/0.51    0 page faults and
% 0.19/0.51    2,624,232 bytes consed.
% 0.19/0.51  :PROOF-FOUND
% 0.19/0.51  ; End refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-07-01T14:53:08
% 0.19/0.51  :PROOF-FOUND
% 0.19/0.51  * 
%------------------------------------------------------------------------------