TSTP Solution File: HEN009-4 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : HEN009-4 : TPTP v8.1.0. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n020.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 13:02:30 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     :   10 (   6 unt;   0 nHn;   5 RR)
%            Number of literals    :   15 (   4 equ;   6 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    :    4 (   4 usr;   3 con; 0-2 aty)
%            Number of variables   :   17 (   0 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(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(x_divide_x_is_zero,axiom,
    divide(X,X) = zero,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',x_divide_x_is_zero) ).

cnf(property_of_divide1,axiom,
    ( ~ less_equal(divide(X,Y),Z)
    | less_equal(divide(X,Z),Y) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_divide1) ).

cnf(property_of_divide2,axiom,
    ( ~ less_equal(X,Y)
    | less_equal(divide(Z,Y),divide(Z,X)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',property_of_divide2) ).

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

cnf(19,plain,
    less_equal(X,X),
    inference('HYPERRESOLVE',[status(thm)],[quotient_less_equal2,x_divide_x_is_zero]) ).

cnf(40,plain,
    less_equal(divide(X,divide(X,Y)),Y),
    inference('HYPERRESOLVE',[status(thm)],[property_of_divide1,19]) ).

cnf(75,plain,
    less_equal(divide(X,Y),divide(X,divide(Z,divide(Z,Y)))),
    inference('HYPERRESOLVE',[status(thm)],[property_of_divide2,40]) ).

cnf(78,plain,
    $false,
    inference('REWRITE',[status(thm)],[inference('UR-RESOLVE',[status(thm)],[less_equal_and_equal,40,prove_this]),75]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : HEN009-4 : TPTP v8.1.0. Bugfixed v1.2.1.
% 0.07/0.13  % Command  : run-snark %s %d
% 0.12/0.34  % Computer : n020.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Fri Jul  1 13:59:45 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.19/0.45  /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.19/0.46  * 
% 0.19/0.46  * 
% 0.19/0.47  #<PACKAGE "SNARK-USER">
% 0.19/0.47  * 
% 0.19/0.47  SNARK-TPTP-OPTIONS
% 0.19/0.47  * 
% 0.19/0.47  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.19/0.47   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.19/0.47   (USE-FACTORING :POS)
% 0.19/0.47   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.19/0.47   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.19/0.47   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.19/0.47   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.19/0.47   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.19/0.47   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.19/0.47   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.19/0.47   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.19/0.47   (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 2022-07-01T13:59:45
% 0.19/0.47  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n020.cluster.edu at 2022-07-01T13:59:45
% 0.19/0.52  
% 0.19/0.52  
% 0.19/0.52  #||
% 0.19/0.52  % SZS status Unsatisfiable for /export/starexec/sandbox/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  ;       464 formulas have been input or derived (from 27 formulas).
% 0.19/0.52  ;        78 (17%) were retained.  Of these,
% 0.19/0.52  ;            4 ( 5%) were simplified or subsumed later,
% 0.19/0.52  ;           74 (95%) are still being kept.
% 0.19/0.52  ; 
% 0.19/0.52  ; Run time in seconds excluding printing time:
% 0.19/0.52  ;     0.003   6%   Read assertion file          (1 call)
% 0.19/0.52  ;     0.001   2%   Assert                       (16 calls)
% 0.19/0.52  ;     0.005  10%   Process new row              (369 calls)
% 0.19/0.52  ;     0.006  12%   Resolution                   (52 calls)
% 0.19/0.52  ;     0.001   2%   Paramodulation               (26 calls)
% 0.19/0.52  ;     0.000   0%   Condensing                   (9 calls)
% 0.19/0.52  ;     0.000   0%   Forward subsumption          (9 calls)
% 0.19/0.52  ;     0.000   0%   Backward subsumption         (9 calls)
% 0.19/0.52  ;     0.000   0%   Clause clause subsumption    (2 calls)
% 0.19/0.52  ;     0.005  10%   Forward simplification       (369 calls)
% 0.19/0.52  ;     0.002   4%   Backward simplification      (78 calls)
% 0.19/0.52  ;     0.000   0%   Ordering                     (110 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  ;     0.028  55%   Other
% 0.19/0.52  ;     0.051        Total
% 0.19/0.52  ;     0.053        Real time
% 0.19/0.52  ; 
% 0.19/0.52  ; Term-hash-array has 154 terms in all.
% 0.19/0.52  ; Feature-vector-row-index has 9 entries (9 at peak, 9 added, 0 deleted).
% 0.19/0.52  ; Feature-vector-row-index has 30 nodes (30 at peak, 30 added, 0 deleted).
% 0.19/0.52  ;  Retrieved 1 possibly forward subsuming row in 9 calls.
% 0.19/0.52  ;  Retrieved 1 possibly backward subsumed row in 9 calls.
% 0.19/0.52  ; Path-index has 153 entries (153 at peak, 157 added, 4 deleted).
% 0.19/0.52  ; Path-index has 212 nodes (213 at peak, 215 added, 3 deleted).
% 0.19/0.52  ; Trie-index has 153 entries (153 at peak, 157 added, 4 deleted).
% 0.19/0.52  ; Trie-index has 395 nodes (395 at peak, 404 added, 9 deleted).
% 0.19/0.52  ; Retrieved 1,030 generalization terms in 702 calls.
% 0.19/0.52  ; Retrieved 139 instance terms in 68 calls.
% 0.19/0.52  ; Retrieved 2,883 unifiable terms in 431 calls.
% 0.19/0.52  ; 
% 0.19/0.52  ; The agenda of rows to process has 12 entries:
% 0.19/0.52  ;     8 with value 19              4 with value 25
% 0.19/0.52  ; The agenda of rows to give has 47 entries:
% 0.19/0.52  ;     1 with value (4 12)          7 with value (4 16)           2 with value (4 20)
% 0.19/0.52  ;     5 with value (4 13)          6 with value (4 17)           3 with value (4 22)
% 0.19/0.52  ;     4 with value (4 14)          8 with value (4 18)           1 with value (4 24)
% 0.19/0.52  ;     9 with value (4 15)          1 with value (4 19)
% 0.19/0.52  Evaluation took:
% 0.19/0.52    0.053 seconds of real time
% 0.19/0.52    0.042023 seconds of user run time
% 0.19/0.52    0.011089 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    2,894,368 bytes consed.
% 0.19/0.52  :PROOF-FOUND
% 0.19/0.52  ; End refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-07-01T13:59:45
% 0.19/0.52  :PROOF-FOUND
% 0.19/0.52  * 
%------------------------------------------------------------------------------