TSTP Solution File: GRP036-3 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : GRP036-3 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n005.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  : 300s
% DateTime : Wed Jul 27 12:55:56 EDT 2022

% Result   : Unsatisfiable 1.67s 1.86s
% Output   : Refutation 1.67s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :    7
% Syntax   : Number of clauses     :   11 (   8 unt;   0 nHn;   9 RR)
%            Number of literals    :   17 (   3 equ;   7 neg)
%            Maximal clause size   :    4 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-3 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-1 aty)
%            Number of variables   :   13 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ product(A,B,C)
    | ~ product(A,B,D)
    | C = D ),
    file('GRP036-3.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ product(A,B,C)
    | ~ product(B,D,E)
    | ~ product(A,E,F)
    | product(C,D,F) ),
    file('GRP036-3.p',unknown),
    [] ).

cnf(6,axiom,
    ( ~ subgroup_member(A)
    | product(A,another_identity,A) ),
    file('GRP036-3.p',unknown),
    [] ).

cnf(10,axiom,
    identity != another_identity,
    file('GRP036-3.p',unknown),
    [] ).

cnf(12,axiom,
    product(identity,A,A),
    file('GRP036-3.p',unknown),
    [] ).

cnf(14,axiom,
    product(inverse(A),A,identity),
    file('GRP036-3.p',unknown),
    [] ).

cnf(17,axiom,
    subgroup_member(another_identity),
    file('GRP036-3.p',unknown),
    [] ).

cnf(21,plain,
    product(another_identity,another_identity,another_identity),
    inference(hyper,[status(thm)],[17,6]),
    [iquote('hyper,17,6')] ).

cnf(41,plain,
    product(identity,another_identity,identity),
    inference(hyper,[status(thm)],[21,3,14,14]),
    [iquote('hyper,21,3,14,14')] ).

cnf(62,plain,
    identity = another_identity,
    inference(flip,[status(thm),theory(equality)],[inference(hyper,[status(thm)],[41,1,12])]),
    [iquote('hyper,41,1,12,flip.1')] ).

cnf(64,plain,
    $false,
    inference(binary,[status(thm)],[62,10]),
    [iquote('binary,62.1,10.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : GRP036-3 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n005.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Wed Jul 27 05:11:50 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 1.67/1.86  ----- Otter 3.3f, August 2004 -----
% 1.67/1.86  The process was started by sandbox on n005.cluster.edu,
% 1.67/1.86  Wed Jul 27 05:11:50 2022
% 1.67/1.86  The command was "./otter".  The process ID is 27075.
% 1.67/1.86  
% 1.67/1.86  set(prolog_style_variables).
% 1.67/1.86  set(auto).
% 1.67/1.86     dependent: set(auto1).
% 1.67/1.86     dependent: set(process_input).
% 1.67/1.86     dependent: clear(print_kept).
% 1.67/1.86     dependent: clear(print_new_demod).
% 1.67/1.86     dependent: clear(print_back_demod).
% 1.67/1.86     dependent: clear(print_back_sub).
% 1.67/1.86     dependent: set(control_memory).
% 1.67/1.86     dependent: assign(max_mem, 12000).
% 1.67/1.86     dependent: assign(pick_given_ratio, 4).
% 1.67/1.86     dependent: assign(stats_level, 1).
% 1.67/1.86     dependent: assign(max_seconds, 10800).
% 1.67/1.86  clear(print_given).
% 1.67/1.86  
% 1.67/1.86  list(usable).
% 1.67/1.86  0 [] A=A.
% 1.67/1.86  0 [] product(identity,X,X).
% 1.67/1.86  0 [] product(X,identity,X).
% 1.67/1.86  0 [] product(inverse(X),X,identity).
% 1.67/1.86  0 [] product(X,inverse(X),identity).
% 1.67/1.86  0 [] product(X,Y,multiply(X,Y)).
% 1.67/1.86  0 [] -product(X,Y,Z)| -product(X,Y,W)|Z=W.
% 1.67/1.86  0 [] -product(X,Y,U)| -product(Y,Z,V)| -product(U,Z,W)|product(X,V,W).
% 1.67/1.86  0 [] -product(X,Y,U)| -product(Y,Z,V)| -product(X,V,W)|product(U,Z,W).
% 1.67/1.86  0 [] -subgroup_member(A)| -subgroup_member(B)| -product(A,inverse(B),C)|subgroup_member(C).
% 1.67/1.86  0 [] -subgroup_member(A)|product(another_identity,A,A).
% 1.67/1.86  0 [] -subgroup_member(A)|product(A,another_identity,A).
% 1.67/1.86  0 [] -subgroup_member(A)|product(A,another_inverse(A),another_identity).
% 1.67/1.86  0 [] -subgroup_member(A)|product(another_inverse(A),A,another_identity).
% 1.67/1.86  0 [] -subgroup_member(A)|subgroup_member(another_inverse(A)).
% 1.67/1.86  0 [] subgroup_member(another_identity).
% 1.67/1.86  0 [] identity!=another_identity.
% 1.67/1.86  end_of_list.
% 1.67/1.86  
% 1.67/1.86  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=4.
% 1.67/1.86  
% 1.67/1.86  This is a Horn set with equality.  The strategy will be
% 1.67/1.86  Knuth-Bendix and hyper_res, with positive clauses in
% 1.67/1.86  sos and nonpositive clauses in usable.
% 1.67/1.86  
% 1.67/1.86     dependent: set(knuth_bendix).
% 1.67/1.86     dependent: set(anl_eq).
% 1.67/1.86     dependent: set(para_from).
% 1.67/1.86     dependent: set(para_into).
% 1.67/1.86     dependent: clear(para_from_right).
% 1.67/1.86     dependent: clear(para_into_right).
% 1.67/1.86     dependent: set(para_from_vars).
% 1.67/1.86     dependent: set(eq_units_both_ways).
% 1.67/1.86     dependent: set(dynamic_demod_all).
% 1.67/1.86     dependent: set(dynamic_demod).
% 1.67/1.86     dependent: set(order_eq).
% 1.67/1.86     dependent: set(back_demod).
% 1.67/1.86     dependent: set(lrpo).
% 1.67/1.86     dependent: set(hyper_res).
% 1.67/1.86     dependent: clear(order_hyper).
% 1.67/1.86  
% 1.67/1.86  ------------> process usable:
% 1.67/1.86  ** KEPT (pick-wt=11): 1 [] -product(A,B,C)| -product(A,B,D)|C=D.
% 1.67/1.86  ** KEPT (pick-wt=16): 2 [] -product(A,B,C)| -product(B,D,E)| -product(C,D,F)|product(A,E,F).
% 1.67/1.86  ** KEPT (pick-wt=16): 3 [] -product(A,B,C)| -product(B,D,E)| -product(A,E,F)|product(C,D,F).
% 1.67/1.86  ** KEPT (pick-wt=11): 4 [] -subgroup_member(A)| -subgroup_member(B)| -product(A,inverse(B),C)|subgroup_member(C).
% 1.67/1.86  ** KEPT (pick-wt=6): 5 [] -subgroup_member(A)|product(another_identity,A,A).
% 1.67/1.86  ** KEPT (pick-wt=6): 6 [] -subgroup_member(A)|product(A,another_identity,A).
% 1.67/1.86  ** KEPT (pick-wt=7): 7 [] -subgroup_member(A)|product(A,another_inverse(A),another_identity).
% 1.67/1.86  ** KEPT (pick-wt=7): 8 [] -subgroup_member(A)|product(another_inverse(A),A,another_identity).
% 1.67/1.86  ** KEPT (pick-wt=5): 9 [] -subgroup_member(A)|subgroup_member(another_inverse(A)).
% 1.67/1.86  ** KEPT (pick-wt=3): 10 [] identity!=another_identity.
% 1.67/1.86  
% 1.67/1.86  ------------> process sos:
% 1.67/1.86  ** KEPT (pick-wt=3): 11 [] A=A.
% 1.67/1.86  ** KEPT (pick-wt=4): 12 [] product(identity,A,A).
% 1.67/1.86  ** KEPT (pick-wt=4): 13 [] product(A,identity,A).
% 1.67/1.86  ** KEPT (pick-wt=5): 14 [] product(inverse(A),A,identity).
% 1.67/1.86  ** KEPT (pick-wt=5): 15 [] product(A,inverse(A),identity).
% 1.67/1.86  ** KEPT (pick-wt=6): 16 [] product(A,B,multiply(A,B)).
% 1.67/1.86  ** KEPT (pick-wt=2): 17 [] subgroup_member(another_identity).
% 1.67/1.86    Following clause subsumed by 11 during input processing: 0 [copy,11,flip.1] A=A.
% 1.67/1.86  
% 1.67/1.86  ======= end of input processing =======
% 1.67/1.86  
% 1.67/1.86  =========== start of search ===========
% 1.67/1.86  
% 1.67/1.86  -------- PROOF -------- 
% 1.67/1.86  
% 1.67/1.86  ----> UNIT CONFLICT at   0.00 sec ----> 64 [binary,62.1,10.1] $F.
% 1.67/1.86  
% 1.67/1.86  Length of proof is 3.  Level of proof is 3.
% 1.67/1.86  
% 1.67/1.86  ---------------- PROOF ----------------
% 1.67/1.86  % SZS status Unsatisfiable
% 1.67/1.86  % SZS output start Refutation
% See solution above
% 1.67/1.86  ------------ end of proof -------------
% 1.67/1.86  
% 1.67/1.86  
% 1.67/1.86  Search stopped by max_proofs option.
% 1.67/1.86  
% 1.67/1.86  
% 1.67/1.86  Search stopped by max_proofs option.
% 1.67/1.86  
% 1.67/1.86  ============ end of search ============
% 1.67/1.86  
% 1.67/1.86  -------------- statistics -------------
% 1.67/1.86  clauses given                 10
% 1.67/1.86  clauses generated            158
% 1.67/1.86  clauses kept                  61
% 1.67/1.86  clauses forward subsumed     117
% 1.67/1.86  clauses back subsumed          1
% 1.67/1.86  Kbytes malloced              976
% 1.67/1.86  
% 1.67/1.86  ----------- times (seconds) -----------
% 1.67/1.86  user CPU time          0.00          (0 hr, 0 min, 0 sec)
% 1.67/1.86  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.67/1.86  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 1.67/1.86  
% 1.67/1.86  That finishes the proof of the theorem.
% 1.67/1.86  
% 1.67/1.86  Process 27075 finished Wed Jul 27 05:11:52 2022
% 1.67/1.86  Otter interrupted
% 1.67/1.86  PROOF FOUND
%------------------------------------------------------------------------------