TSTP Solution File: HEN008-4 by SNARK---20120808r022

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SNARK---20120808r022
% Problem  : HEN008-4 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run-snark %s %d

% Computer : n003.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 13:02:29 EDT 2022

% Result   : Unsatisfiable 0.39s 0.55s
% Output   : Refutation 0.39s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :    8
% Syntax   : Number of clauses     :   12 (   9 unt;   0 nHn;   8 RR)
%            Number of literals    :   16 (   6 equ;   6 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    3 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   4 con; 0-2 aty)
%            Number of variables   :   12 (   2 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(quotient_less_equal1,axiom,
    ( ~ less_equal(X,Y)
    | divide(X,Y) = zero ),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal1) ).

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_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(a_LE_b,hypothesis,
    less_equal(a,b),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',a_LE_b) ).

cnf(prove_a_divide_c_LE_b_divide_c,negated_conjecture,
    ~ less_equal(divide(a,c),divide(b,c)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_a_divide_c_LE_b_divide_c) ).

cnf(18,plain,
    divide(a,b) = zero,
    inference('HYPERRESOLVE',[status(thm)],[quotient_less_equal1,a_LE_b]) ).

cnf(22,plain,
    divide(divide(a,c),divide(b,c)) != zero,
    inference('UR-RESOLVE',[status(thm)],[quotient_less_equal2,prove_a_divide_c_LE_b_divide_c]) ).

cnf(48,plain,
    less_equal(divide(divide(a,X),divide(b,X)),zero),
    inference('REWRITE',[status(thm)],[inference('PARAMODULATE',[status(thm)],[quotient_property,18,theory(equality)]),zero_divide_anything_is_zero,theory(equality)]) ).

cnf(169,plain,
    $false,
    inference('REWRITE',[status(thm)],[inference('UR-RESOLVE',[status(thm)],[less_equal_and_equal,22,zero_is_smallest]),48]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : HEN008-4 : TPTP v8.1.0. Released v1.0.0.
% 0.07/0.13  % Command  : run-snark %s %d
% 0.13/0.34  % Computer : n003.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 13:20:37 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.20/0.46  /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.47  * 
% 0.20/0.47  * 
% 0.20/0.47  #<PACKAGE "SNARK-USER">
% 0.20/0.47  * 
% 0.20/0.47  SNARK-TPTP-OPTIONS
% 0.20/0.47  * 
% 0.20/0.47  ((AGENDA-LENGTH-LIMIT NIL) (AGENDA-LENGTH-BEFORE-SIMPLIFICATION-LIMIT NIL)
% 0.20/0.47   (USE-HYPERRESOLUTION T) (USE-UR-RESOLUTION T) (USE-PARAMODULATION T)
% 0.20/0.47   (USE-FACTORING :POS)
% 0.20/0.47   (USE-LITERAL-ORDERING-WITH-HYPERRESOLUTION 'LITERAL-ORDERING-P)
% 0.20/0.47   (USE-LITERAL-ORDERING-WITH-PARAMODULATION 'LITERAL-ORDERING-P)
% 0.20/0.47   (ORDERING-FUNCTIONS>CONSTANTS T) (ASSERT-CONTEXT :CURRENT)
% 0.20/0.47   (RUN-TIME-LIMIT 300) (LISTEN-FOR-COMMANDS NIL)
% 0.20/0.47   (USE-CLOSURE-WHEN-SATISFIABLE T) (PRINT-ROWS-WHEN-GIVEN NIL)
% 0.20/0.47   (PRINT-ROWS-WHEN-DERIVED NIL) (PRINT-UNORIENTABLE-ROWS NIL)
% 0.20/0.47   (PRINT-ROW-WFFS-PRETTILY NIL) (PRINT-FINAL-ROWS :TPTP)
% 0.20/0.47   (PRINT-OPTIONS-WHEN-STARTING NIL) (USE-VARIABLE-NAME-SORTS NIL)
% 0.20/0.47   (USE-PURITY-TEST T) (USE-RELEVANCE-TEST T) (DECLARE-TPTP-SYMBOLS1)
% 0.20/0.47   (DECLARE-TPTP-SYMBOLS2))
% 0.20/0.47  * 
% 0.20/0.47  "."
% 0.20/0.47  * 
% 0.20/0.47  ; Begin refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-07-01T13:20:38
% 0.20/0.47  ; Running SNARK from /davis/home/graph/tptp/Systems/SNARK---20120808r022/Source/snark-system.lisp in SBCL 1.0.12 on n003.cluster.edu at 2022-07-01T13:20:38
% 0.39/0.55  
% 0.39/0.55  
% 0.39/0.55  #||
% 0.39/0.55  % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.39/0.55  % SZS output start Refutation
% See solution above
% 0.39/0.55  ||#
% 0.39/0.55  
% 0.39/0.55  ; Summary of computation:
% 0.39/0.55  ;       742 formulas have been input or derived (from 60 formulas).
% 0.39/0.55  ;       169 (23%) were retained.  Of these,
% 0.39/0.55  ;            3 ( 2%) were simplified or subsumed later,
% 0.39/0.55  ;          166 (98%) are still being kept.
% 0.39/0.55  ; 
% 0.39/0.55  ; Run time in seconds excluding printing time:
% 0.39/0.55  ;     0.003   4%   Read assertion file          (1 call)
% 0.39/0.55  ;     0.000   0%   Assert                       (16 calls)
% 0.39/0.55  ;     0.018  24%   Process new row              (623 calls)
% 0.39/0.55  ;     0.012  16%   Resolution                   (118 calls)
% 0.39/0.55  ;     0.001   1%   Paramodulation               (59 calls)
% 0.39/0.55  ;     0.001   1%   Condensing                   (8 calls)
% 0.39/0.55  ;     0.000   0%   Forward subsumption          (8 calls)
% 0.39/0.55  ;     0.000   0%   Backward subsumption         (8 calls)
% 0.39/0.55  ;     0.011  15%   Forward simplification       (623 calls)
% 0.39/0.55  ;     0.000   0%   Backward simplification      (169 calls)
% 0.39/0.55  ;     0.000   0%   Ordering                     (185 calls)
% 0.39/0.55  ;     0.000   0%   Sortal reasoning             (32 calls)
% 0.39/0.55  ;     0.000   0%   Purity testing               (1 call)
% 0.39/0.55  ;     0.029  39%   Other
% 0.39/0.55  ;     0.075        Total
% 0.39/0.55  ;     0.078        Real time
% 0.39/0.55  ; 
% 0.39/0.55  ; Term-hash-array has 318 terms in all.
% 0.39/0.55  ; Feature-vector-row-index has 7 entries (8 at peak, 8 added, 1 deleted).
% 0.39/0.55  ; Feature-vector-row-index has 22 nodes (30 at peak, 30 added, 8 deleted).
% 0.39/0.55  ;  Retrieved 0 possibly forward subsuming rows in 8 calls.
% 0.39/0.55  ;  Retrieved 0 possibly backward subsumed rows in 8 calls.
% 0.39/0.55  ; Path-index has 321 entries (321 at peak, 324 added, 3 deleted).
% 0.39/0.55  ; Path-index has 346 nodes (346 at peak, 347 added, 1 deleted).
% 0.39/0.55  ; Trie-index has 321 entries (321 at peak, 324 added, 3 deleted).
% 0.39/0.55  ; Trie-index has 905 nodes (905 at peak, 909 added, 4 deleted).
% 0.39/0.55  ; Retrieved 1,819 generalization terms in 1,379 calls.
% 0.39/0.55  ; Retrieved 223 instance terms in 160 calls.
% 0.39/0.55  ; Retrieved 4,579 unifiable terms in 853 calls.
% 0.39/0.55  ; 
% 0.39/0.55  ; The agenda of rows to give has 106 entries:
% 0.39/0.55  ;    11 with value (4 13)          8 with value (4 17)           2 with value (4 22)
% 0.39/0.55  ;    13 with value (4 14)         16 with value (4 18)           1 with value (4 24)
% 0.39/0.55  ;    17 with value (4 15)         12 with value (4 19)           3 with value (4 25)
% 0.39/0.55  ;    20 with value (4 16)          3 with value (4 20)
% 0.39/0.55  Evaluation took:
% 0.39/0.55    0.078 seconds of real time
% 0.39/0.55    0.06679 seconds of user run time
% 0.39/0.55    0.010745 seconds of system run time
% 0.39/0.55    0 calls to %EVAL
% 0.39/0.55    0 page faults and
% 0.39/0.55    3,848,880 bytes consed.
% 0.39/0.55  :PROOF-FOUND
% 0.39/0.55  ; End refute-file /export/starexec/sandbox/benchmark/theBenchmark.p 2022-07-01T13:20:38
% 0.39/0.55  :PROOF-FOUND
% 0.39/0.55  * 
%------------------------------------------------------------------------------