TSTP Solution File: LCL498+1 by Vampire-SAT---4.8

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Vampire-SAT---4.8
% Problem  : LCL498+1 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s

% Computer : n004.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 : Tue Apr 30 13:42:35 EDT 2024

% Result   : Theorem 64.55s 9.60s
% Output   : Refutation 64.55s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   40
%            Number of leaves      :   26
% Syntax   : Number of formulae    :  154 (  61 unt;   0 def)
%            Number of atoms       :  270 (  26 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :  205 (  89   ~;  83   |;   2   &)
%                                         (  14 <=>;  17  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   4 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :   15 (  13 usr;  13 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   1 con; 0-2 aty)
%            Number of variables   :  256 ( 254   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f96773,plain,
    $false,
    inference(resolution,[],[f96612,f113]) ).

fof(f113,plain,
    ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101]) ).

fof(f101,plain,
    ( cn3
    | ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(cnf_transformation,[],[f83]) ).

fof(f83,plain,
    ( cn3
    | ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f73,f82]) ).

fof(f82,plain,
    ( ? [X0] : ~ is_a_theorem(implies(implies(not(X0),X0),X0))
   => ~ is_a_theorem(implies(implies(not(sK0),sK0),sK0)) ),
    introduced(choice_axiom,[]) ).

fof(f73,plain,
    ( cn3
    | ? [X0] : ~ is_a_theorem(implies(implies(not(X0),X0),X0)) ),
    inference(ennf_transformation,[],[f64]) ).

fof(f64,plain,
    ( ! [X0] : is_a_theorem(implies(implies(not(X0),X0),X0))
   => cn3 ),
    inference(unused_predicate_definition_removal,[],[f53]) ).

fof(f53,plain,
    ( cn3
  <=> ! [X0] : is_a_theorem(implies(implies(not(X0),X0),X0)) ),
    inference(rectify,[],[f21]) ).

fof(f21,axiom,
    ( cn3
  <=> ! [X3] : is_a_theorem(implies(implies(not(X3),X3),X3)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cn3) ).

fof(f112,plain,
    ! [X0,X1] : equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0)),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100]) ).

fof(f100,plain,
    ! [X0,X1] :
      ( equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0))
      | ~ op_equiv ),
    inference(cnf_transformation,[],[f72]) ).

fof(f72,plain,
    ( ! [X0,X1] : equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0))
    | ~ op_equiv ),
    inference(ennf_transformation,[],[f31]) ).

fof(f31,axiom,
    ( op_equiv
   => ! [X0,X1] : equiv(X0,X1) = and(implies(X0,X1),implies(X1,X0)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_equiv) ).

fof(f111,plain,
    ! [X0,X1] : or(X0,X1) = not(and(not(X0),not(X1))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( or(X0,X1) = not(and(not(X0),not(X1)))
      | ~ op_or ),
    inference(cnf_transformation,[],[f71]) ).

fof(f71,plain,
    ( ! [X0,X1] : or(X0,X1) = not(and(not(X0),not(X1)))
    | ~ op_or ),
    inference(ennf_transformation,[],[f27]) ).

fof(f27,axiom,
    ( op_or
   => ! [X0,X1] : or(X0,X1) = not(and(not(X0),not(X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_or) ).

fof(f110,plain,
    ! [X0,X1] : and(X0,X1) = not(or(not(X0),not(X1))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98]) ).

fof(f98,plain,
    ! [X0,X1] :
      ( and(X0,X1) = not(or(not(X0),not(X1)))
      | ~ op_and ),
    inference(cnf_transformation,[],[f70]) ).

fof(f70,plain,
    ( ! [X0,X1] : and(X0,X1) = not(or(not(X0),not(X1)))
    | ~ op_and ),
    inference(ennf_transformation,[],[f28]) ).

fof(f28,axiom,
    ( op_and
   => ! [X0,X1] : and(X0,X1) = not(or(not(X0),not(X1))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_and) ).

fof(f109,plain,
    ! [X0,X1] : implies(X0,X1) = or(not(X0),X1),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97]) ).

fof(f97,plain,
    ! [X0,X1] :
      ( implies(X0,X1) = or(not(X0),X1)
      | ~ op_implies_or ),
    inference(cnf_transformation,[],[f69]) ).

fof(f69,plain,
    ( ! [X0,X1] : implies(X0,X1) = or(not(X0),X1)
    | ~ op_implies_or ),
    inference(ennf_transformation,[],[f30]) ).

fof(f30,axiom,
    ( op_implies_or
   => ! [X0,X1] : implies(X0,X1) = or(not(X0),X1) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',op_implies_or) ).

fof(f96,plain,
    op_equiv,
    inference(cnf_transformation,[],[f34]) ).

fof(f34,axiom,
    op_equiv,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_op_equiv) ).

fof(f95,plain,
    op_equiv,
    inference(cnf_transformation,[],[f44]) ).

fof(f44,axiom,
    op_equiv,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',luka_op_equiv) ).

fof(f94,plain,
    op_and,
    inference(cnf_transformation,[],[f33]) ).

fof(f33,axiom,
    op_and,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_op_and) ).

fof(f93,plain,
    op_implies_or,
    inference(cnf_transformation,[],[f32]) ).

fof(f32,axiom,
    op_implies_or,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_op_implies_or) ).

fof(f92,plain,
    op_or,
    inference(cnf_transformation,[],[f42]) ).

fof(f42,axiom,
    op_or,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',luka_op_or) ).

fof(f91,plain,
    r1,
    inference(cnf_transformation,[],[f36]) ).

fof(f36,axiom,
    r1,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r1) ).

fof(f90,plain,
    substitution_of_equivalents,
    inference(cnf_transformation,[],[f41]) ).

fof(f41,axiom,
    substitution_of_equivalents,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',substitution_of_equivalents) ).

fof(f89,plain,
    r3,
    inference(cnf_transformation,[],[f38]) ).

fof(f38,axiom,
    r3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r3) ).

fof(f88,plain,
    r2,
    inference(cnf_transformation,[],[f37]) ).

fof(f37,axiom,
    r2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r2) ).

fof(f87,plain,
    r5,
    inference(cnf_transformation,[],[f40]) ).

fof(f40,axiom,
    r5,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r5) ).

fof(f86,plain,
    r4,
    inference(cnf_transformation,[],[f39]) ).

fof(f39,axiom,
    r4,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_r4) ).

fof(f85,plain,
    modus_ponens,
    inference(cnf_transformation,[],[f35]) ).

fof(f35,axiom,
    modus_ponens,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',principia_modus_ponens) ).

fof(f84,plain,
    ~ cn3,
    inference(cnf_transformation,[],[f47]) ).

fof(f47,plain,
    ~ cn3,
    inference(flattening,[],[f46]) ).

fof(f46,negated_conjecture,
    ~ cn3,
    inference(negated_conjecture,[],[f45]) ).

fof(f45,conjecture,
    cn3,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',luka_cn3) ).

fof(f96612,plain,
    ! [X0] : is_a_theorem(implies(implies(not(X0),X0),X0)),
    inference(resolution,[],[f55819,f1025]) ).

fof(f1025,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X1,implies(X0,X1)))
      | is_a_theorem(implies(X0,X1)) ),
    inference(forward_demodulation,[],[f1023,f109]) ).

fof(f1023,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X1,implies(X0,X1)))
      | is_a_theorem(or(not(X0),X1)) ),
    inference(superposition,[],[f853,f109]) ).

fof(f853,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X0,or(X1,X0)))
      | is_a_theorem(or(X1,X0)) ),
    inference(resolution,[],[f649,f125]) ).

fof(f125,plain,
    ! [X0] :
      ( ~ is_a_theorem(or(X0,X0))
      | is_a_theorem(X0) ),
    inference(resolution,[],[f118,f114]) ).

fof(f114,plain,
    ! [X0] : is_a_theorem(implies(or(X0,X0),X0)),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102]) ).

fof(f102,plain,
    ! [X0] :
      ( is_a_theorem(implies(or(X0,X0),X0))
      | ~ r1 ),
    inference(cnf_transformation,[],[f74]) ).

fof(f74,plain,
    ( ! [X0] : is_a_theorem(implies(or(X0,X0),X0))
    | ~ r1 ),
    inference(ennf_transformation,[],[f63]) ).

fof(f63,plain,
    ( r1
   => ! [X0] : is_a_theorem(implies(or(X0,X0),X0)) ),
    inference(unused_predicate_definition_removal,[],[f54]) ).

fof(f54,plain,
    ( r1
  <=> ! [X0] : is_a_theorem(implies(or(X0,X0),X0)) ),
    inference(rectify,[],[f22]) ).

fof(f22,axiom,
    ( r1
  <=> ! [X3] : is_a_theorem(implies(or(X3,X3),X3)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r1) ).

fof(f118,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(X0,X1))
      | is_a_theorem(X1)
      | ~ is_a_theorem(X0) ),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103,f115,f104,f116,f105,f117,f106]) ).

fof(f106,plain,
    ! [X0,X1] :
      ( is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0)
      | ~ modus_ponens ),
    inference(cnf_transformation,[],[f79]) ).

fof(f79,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(flattening,[],[f78]) ).

fof(f78,plain,
    ( ! [X0,X1] :
        ( is_a_theorem(X1)
        | ~ is_a_theorem(implies(X0,X1))
        | ~ is_a_theorem(X0) )
    | ~ modus_ponens ),
    inference(ennf_transformation,[],[f66]) ).

fof(f66,plain,
    ( modus_ponens
   => ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    inference(unused_predicate_definition_removal,[],[f1]) ).

fof(f1,axiom,
    ( modus_ponens
  <=> ! [X0,X1] :
        ( ( is_a_theorem(implies(X0,X1))
          & is_a_theorem(X0) )
       => is_a_theorem(X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',modus_ponens) ).

fof(f117,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(equiv(X0,X1))
      | X0 = X1 ),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103,f115,f104,f116,f105]) ).

fof(f105,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ is_a_theorem(equiv(X0,X1))
      | ~ substitution_of_equivalents ),
    inference(cnf_transformation,[],[f77]) ).

fof(f77,plain,
    ( ! [X0,X1] :
        ( X0 = X1
        | ~ is_a_theorem(equiv(X0,X1)) )
    | ~ substitution_of_equivalents ),
    inference(ennf_transformation,[],[f65]) ).

fof(f65,plain,
    ( substitution_of_equivalents
   => ! [X0,X1] :
        ( is_a_theorem(equiv(X0,X1))
       => X0 = X1 ) ),
    inference(unused_predicate_definition_removal,[],[f2]) ).

fof(f2,axiom,
    ( substitution_of_equivalents
  <=> ! [X0,X1] :
        ( is_a_theorem(equiv(X0,X1))
       => X0 = X1 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',substitution_of_equivalents) ).

fof(f116,plain,
    ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103,f115,f104]) ).

fof(f104,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(or(X0,X1),or(X1,X0)))
      | ~ r3 ),
    inference(cnf_transformation,[],[f76]) ).

fof(f76,plain,
    ( ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0)))
    | ~ r3 ),
    inference(ennf_transformation,[],[f61]) ).

fof(f61,plain,
    ( r3
   => ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(unused_predicate_definition_removal,[],[f56]) ).

fof(f56,plain,
    ( r3
  <=> ! [X0,X1] : is_a_theorem(implies(or(X0,X1),or(X1,X0))) ),
    inference(rectify,[],[f24]) ).

fof(f24,axiom,
    ( r3
  <=> ! [X3,X4] : is_a_theorem(implies(or(X3,X4),or(X4,X3))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r3) ).

fof(f115,plain,
    ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103]) ).

fof(f103,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X1,or(X0,X1)))
      | ~ r2 ),
    inference(cnf_transformation,[],[f75]) ).

fof(f75,plain,
    ( ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1)))
    | ~ r2 ),
    inference(ennf_transformation,[],[f62]) ).

fof(f62,plain,
    ( r2
   => ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1))) ),
    inference(unused_predicate_definition_removal,[],[f55]) ).

fof(f55,plain,
    ( r2
  <=> ! [X0,X1] : is_a_theorem(implies(X1,or(X0,X1))) ),
    inference(rectify,[],[f23]) ).

fof(f23,axiom,
    ( r2
  <=> ! [X3,X4] : is_a_theorem(implies(X4,or(X3,X4))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r2) ).

fof(f649,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(or(X1,or(X2,X0)))
      | ~ is_a_theorem(or(X0,X1)) ),
    inference(resolution,[],[f509,f248]) ).

fof(f248,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(or(X1,or(X0,X2)))
      | is_a_theorem(or(X0,or(X1,X2))) ),
    inference(resolution,[],[f120,f118]) ).

fof(f120,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103,f115,f104,f116,f105,f117,f106,f118,f107,f119,f108]) ).

fof(f108,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2))))
      | ~ r4 ),
    inference(cnf_transformation,[],[f81]) ).

fof(f81,plain,
    ( ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2))))
    | ~ r4 ),
    inference(ennf_transformation,[],[f60]) ).

fof(f60,plain,
    ( r4
   => ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))) ),
    inference(unused_predicate_definition_removal,[],[f58]) ).

fof(f58,plain,
    ( r4
  <=> ! [X0,X1,X2] : is_a_theorem(implies(or(X0,or(X1,X2)),or(X1,or(X0,X2)))) ),
    inference(rectify,[],[f25]) ).

fof(f25,axiom,
    ( r4
  <=> ! [X3,X4,X5] : is_a_theorem(implies(or(X3,or(X4,X5)),or(X4,or(X3,X5)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r4) ).

fof(f119,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2)))),
    inference(global_subsumption,[],[f84,f85,f86,f87,f88,f89,f90,f91,f92,f93,f94,f95,f96,f97,f109,f98,f110,f99,f111,f100,f112,f101,f113,f102,f114,f103,f115,f104,f116,f105,f117,f106,f118,f107]) ).

fof(f107,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2))))
      | ~ r5 ),
    inference(cnf_transformation,[],[f80]) ).

fof(f80,plain,
    ( ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2))))
    | ~ r5 ),
    inference(ennf_transformation,[],[f59]) ).

fof(f59,plain,
    ( r5
   => ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2)))) ),
    inference(unused_predicate_definition_removal,[],[f57]) ).

fof(f57,plain,
    ( r5
  <=> ! [X0,X1,X2] : is_a_theorem(implies(implies(X1,X2),implies(or(X0,X1),or(X0,X2)))) ),
    inference(rectify,[],[f26]) ).

fof(f26,axiom,
    ( r5
  <=> ! [X3,X4,X5] : is_a_theorem(implies(implies(X4,X5),implies(or(X3,X4),or(X3,X5)))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',r5) ).

fof(f509,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(or(X0,or(X1,X2)))
      | ~ is_a_theorem(or(X2,X1)) ),
    inference(resolution,[],[f460,f116]) ).

fof(f460,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(implies(X0,X1))
      | is_a_theorem(or(X2,X1))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[],[f424,f118]) ).

fof(f424,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(X0,or(X1,X2)))
      | ~ is_a_theorem(implies(X0,X2)) ),
    inference(forward_demodulation,[],[f423,f109]) ).

fof(f423,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(X0,or(X1,X2)))
      | ~ is_a_theorem(or(not(X0),X2)) ),
    inference(superposition,[],[f367,f109]) ).

fof(f367,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(or(X0,or(X1,X2)))
      | ~ is_a_theorem(or(X0,X2)) ),
    inference(resolution,[],[f248,f127]) ).

fof(f127,plain,
    ! [X0,X1] :
      ( is_a_theorem(or(X0,X1))
      | ~ is_a_theorem(X1) ),
    inference(resolution,[],[f118,f115]) ).

fof(f55819,plain,
    ! [X0,X1] : is_a_theorem(or(X0,implies(implies(not(X0),X1),X1))),
    inference(resolution,[],[f7892,f7829]) ).

fof(f7829,plain,
    ! [X0,X1] : is_a_theorem(implies(X0,implies(implies(X0,X1),X1))),
    inference(resolution,[],[f5862,f415]) ).

fof(f415,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(implies(X0,implies(X1,X2)),implies(X1,implies(X0,X2)))),
    inference(forward_demodulation,[],[f411,f109]) ).

fof(f411,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(implies(X0,implies(X1,X2)),implies(X1,or(not(X0),X2)))),
    inference(superposition,[],[f253,f109]) ).

fof(f253,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(or(X2,implies(X0,X1)),implies(X0,or(X2,X1)))),
    inference(forward_demodulation,[],[f249,f109]) ).

fof(f249,plain,
    ! [X2,X0,X1] : is_a_theorem(implies(or(X2,implies(X0,X1)),or(not(X0),or(X2,X1)))),
    inference(superposition,[],[f120,f109]) ).

fof(f5862,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(implies(X0,X0),X1))
      | is_a_theorem(X1) ),
    inference(superposition,[],[f2736,f4516]) ).

fof(f4516,plain,
    ! [X0] : implies(X0,X0) = equiv(X0,X0),
    inference(subsumption_resolution,[],[f4498,f2323]) ).

fof(f2323,plain,
    ! [X0] : is_a_theorem(implies(X0,X0)),
    inference(resolution,[],[f2154,f115]) ).

fof(f2154,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(X0,or(X1,X1)))
      | is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[],[f372,f1025]) ).

fof(f372,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(or(X1,implies(X0,X2)))
      | ~ is_a_theorem(implies(X0,or(X1,X2))) ),
    inference(forward_demodulation,[],[f370,f109]) ).

fof(f370,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(implies(X0,or(X1,X2)))
      | is_a_theorem(or(X1,or(not(X0),X2))) ),
    inference(superposition,[],[f248,f109]) ).

fof(f4498,plain,
    ! [X0] :
      ( ~ is_a_theorem(implies(X0,X0))
      | implies(X0,X0) = equiv(X0,X0) ),
    inference(resolution,[],[f4447,f220]) ).

fof(f220,plain,
    ! [X0] : is_a_theorem(implies(implies(X0,X0),equiv(X0,X0))),
    inference(superposition,[],[f217,f112]) ).

fof(f217,plain,
    ! [X0] : is_a_theorem(implies(X0,and(X0,X0))),
    inference(forward_demodulation,[],[f216,f134]) ).

fof(f134,plain,
    ! [X0,X1] : and(X0,X1) = not(implies(X0,not(X1))),
    inference(forward_demodulation,[],[f110,f109]) ).

fof(f216,plain,
    ! [X0] : is_a_theorem(implies(X0,not(implies(X0,not(X0))))),
    inference(forward_demodulation,[],[f210,f109]) ).

fof(f210,plain,
    ! [X0] : is_a_theorem(implies(X0,not(or(not(X0),not(X0))))),
    inference(resolution,[],[f180,f114]) ).

fof(f180,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(X1,not(X0)))
      | is_a_theorem(implies(X0,not(X1))) ),
    inference(superposition,[],[f137,f109]) ).

fof(f137,plain,
    ! [X0,X1] :
      ( is_a_theorem(or(X1,not(X0)))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(superposition,[],[f126,f109]) ).

fof(f126,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X1,X0))
      | is_a_theorem(or(X0,X1)) ),
    inference(resolution,[],[f118,f116]) ).

fof(f4447,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(X0,X1))
      | ~ is_a_theorem(X0)
      | X0 = X1 ),
    inference(resolution,[],[f4078,f117]) ).

fof(f4078,plain,
    ! [X0,X1] :
      ( is_a_theorem(equiv(X0,X1))
      | ~ is_a_theorem(X1)
      | ~ is_a_theorem(implies(X1,X0)) ),
    inference(superposition,[],[f3185,f112]) ).

fof(f3185,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(and(implies(X0,X1),X2))
      | ~ is_a_theorem(X1)
      | ~ is_a_theorem(X2) ),
    inference(resolution,[],[f2673,f2058]) ).

fof(f2058,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(X1,and(X1,X0)))
      | ~ is_a_theorem(X0) ),
    inference(resolution,[],[f2041,f172]) ).

fof(f172,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X1,not(X0)))
      | is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[],[f124,f118]) ).

fof(f124,plain,
    ! [X0,X1] : is_a_theorem(implies(or(X1,not(X0)),implies(X0,X1))),
    inference(superposition,[],[f116,f109]) ).

fof(f2041,plain,
    ! [X0,X1] :
      ( is_a_theorem(or(and(X0,X1),not(X0)))
      | ~ is_a_theorem(X1) ),
    inference(resolution,[],[f2016,f118]) ).

fof(f2016,plain,
    ! [X0,X1] : is_a_theorem(implies(X0,or(and(X1,X0),not(X1)))),
    inference(resolution,[],[f371,f289]) ).

fof(f289,plain,
    ! [X0,X1] : is_a_theorem(or(and(X0,X1),implies(X1,not(X0)))),
    inference(forward_demodulation,[],[f264,f109]) ).

fof(f264,plain,
    ! [X0,X1] : is_a_theorem(or(and(X0,X1),or(not(X1),not(X0)))),
    inference(superposition,[],[f123,f156]) ).

fof(f156,plain,
    ! [X2,X0,X1] : implies(implies(X0,not(X1)),X2) = or(and(X0,X1),X2),
    inference(superposition,[],[f109,f134]) ).

fof(f123,plain,
    ! [X0,X1] : is_a_theorem(implies(implies(X0,X1),or(X1,not(X0)))),
    inference(superposition,[],[f116,f109]) ).

fof(f371,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(or(X2,implies(X0,X1)))
      | is_a_theorem(implies(X0,or(X2,X1))) ),
    inference(forward_demodulation,[],[f369,f109]) ).

fof(f369,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(or(X2,implies(X0,X1)))
      | is_a_theorem(or(not(X0),or(X2,X1))) ),
    inference(superposition,[],[f248,f109]) ).

fof(f2673,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(implies(implies(X1,X2),X0))
      | is_a_theorem(X0)
      | ~ is_a_theorem(X2) ),
    inference(resolution,[],[f2624,f516]) ).

fof(f516,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(or(X0,implies(X1,X2)))
      | ~ is_a_theorem(X2) ),
    inference(resolution,[],[f460,f122]) ).

fof(f122,plain,
    ! [X0,X1] : is_a_theorem(implies(X1,implies(X0,X1))),
    inference(superposition,[],[f115,f109]) ).

fof(f2624,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(or(X1,X0))
      | is_a_theorem(X1)
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[],[f2321,f118]) ).

fof(f2321,plain,
    ! [X0,X1] :
      ( is_a_theorem(implies(or(X0,X1),X0))
      | ~ is_a_theorem(implies(X1,X0)) ),
    inference(resolution,[],[f2154,f228]) ).

fof(f228,plain,
    ! [X2,X0,X1] :
      ( is_a_theorem(implies(or(X0,X1),or(X0,X2)))
      | ~ is_a_theorem(implies(X1,X2)) ),
    inference(resolution,[],[f119,f118]) ).

fof(f2736,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(equiv(X1,X1),X0))
      | is_a_theorem(X0) ),
    inference(subsumption_resolution,[],[f2676,f2323]) ).

fof(f2676,plain,
    ! [X0,X1] :
      ( is_a_theorem(X0)
      | ~ is_a_theorem(implies(equiv(X1,X1),X0))
      | ~ is_a_theorem(implies(X1,X1)) ),
    inference(resolution,[],[f2624,f526]) ).

fof(f526,plain,
    ! [X0,X1] :
      ( is_a_theorem(or(X0,equiv(X1,X1)))
      | ~ is_a_theorem(implies(X1,X1)) ),
    inference(resolution,[],[f460,f220]) ).

fof(f7892,plain,
    ! [X0,X1] :
      ( ~ is_a_theorem(implies(not(X0),X1))
      | is_a_theorem(or(X0,X1)) ),
    inference(resolution,[],[f7831,f313]) ).

fof(f313,plain,
    ! [X2,X0,X1] :
      ( ~ is_a_theorem(or(X2,X0))
      | is_a_theorem(or(X2,X1))
      | ~ is_a_theorem(implies(X0,X1)) ),
    inference(resolution,[],[f228,f118]) ).

fof(f7831,plain,
    ! [X0] : is_a_theorem(or(X0,not(X0))),
    inference(resolution,[],[f5862,f123]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem    : LCL498+1 : TPTP v8.1.2. Released v3.3.0.
% 0.03/0.13  % Command    : vampire --mode casc_sat -m 16384 --cores 7 -t %d %s
% 0.12/0.33  % Computer : n004.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
% 0.12/0.33  % WCLimit    : 300
% 0.12/0.33  % DateTime   : Mon Apr 29 22:56:33 EDT 2024
% 0.12/0.34  % CPUTime    : 
% 0.12/0.34  % (5806)Running in auto input_syntax mode. Trying TPTP
% 0.17/0.35  % (5809)WARNING: value z3 for option sas not known
% 0.17/0.35  % (5811)ott+10_10:1_add=off:afr=on:amm=off:anc=all:bd=off:bs=on:fsr=off:irw=on:lma=on:msp=off:nm=4:nwc=4.0:sac=on:sp=reverse_frequency_531 on theBenchmark for (531ds/0Mi)
% 0.17/0.35  % (5808)fmb+10_1_bce=on:fmbdsb=on:fmbes=contour:fmbswr=3:fde=none:nm=0_793 on theBenchmark for (793ds/0Mi)
% 0.17/0.35  % (5807)fmb+10_1_bce=on:fmbas=function:fmbsr=1.2:fde=unused:nm=0_846 on theBenchmark for (846ds/0Mi)
% 0.17/0.35  % (5812)ott-10_8_av=off:bd=preordered:bs=on:fsd=off:fsr=off:fde=unused:irw=on:lcm=predicate:lma=on:nm=4:nwc=1.7:sp=frequency_522 on theBenchmark for (522ds/0Mi)
% 0.17/0.35  % (5810)fmb+10_1_bce=on:fmbsr=1.5:nm=32_533 on theBenchmark for (533ds/0Mi)
% 0.17/0.35  % (5809)dis+2_11_add=large:afr=on:amm=off:bd=off:bce=on:fsd=off:fde=none:gs=on:gsaa=full_model:gsem=off:irw=on:msp=off:nm=4:nwc=1.3:sas=z3:sims=off:sac=on:sp=reverse_arity_569 on theBenchmark for (569ds/0Mi)
% 0.17/0.35  % (5813)ott+1_64_av=off:bd=off:bce=on:fsd=off:fde=unused:gsp=on:irw=on:lcm=predicate:lma=on:nm=2:nwc=1.1:sims=off:urr=on_497 on theBenchmark for (497ds/0Mi)
% 0.17/0.36  TRYING [1]
% 0.17/0.36  TRYING [2]
% 0.17/0.36  TRYING [1]
% 0.17/0.36  TRYING [3]
% 0.17/0.36  TRYING [2]
% 0.17/0.37  TRYING [3]
% 0.17/0.37  TRYING [4]
% 0.17/0.39  TRYING [4]
% 0.17/0.41  TRYING [5]
% 0.17/0.48  TRYING [5]
% 0.17/0.54  TRYING [6]
% 4.24/0.95  TRYING [6]
% 4.81/1.04  TRYING [7]
% 7.24/1.45  TRYING [1]
% 7.24/1.45  TRYING [2]
% 7.24/1.46  TRYING [3]
% 7.93/1.47  TRYING [4]
% 8.17/1.51  TRYING [5]
% 9.45/1.69  TRYING [6]
% 14.35/2.45  TRYING [7]
% 18.97/3.05  TRYING [8]
% 34.76/5.35  TRYING [8]
% 55.96/8.41  TRYING [7]
% 59.76/8.88  TRYING [9]
% 64.55/9.58  % (5809)First to succeed.
% 64.55/9.60  % (5809)Refutation found. Thanks to Tanya!
% 64.55/9.60  % SZS status Theorem for theBenchmark
% 64.55/9.60  % SZS output start Proof for theBenchmark
% See solution above
% 64.55/9.60  % (5809)------------------------------
% 64.55/9.60  % (5809)Version: Vampire 4.8 (commit 8e9376e55 on 2024-01-18 13:49:33 +0100)
% 64.55/9.60  % (5809)Termination reason: Refutation
% 64.55/9.60  
% 64.55/9.60  % (5809)Memory used [KB]: 45864
% 64.55/9.60  % (5809)Time elapsed: 9.225 s
% 64.55/9.60  % (5809)Instructions burned: 29138 (million)
% 64.55/9.60  % (5809)------------------------------
% 64.55/9.60  % (5809)------------------------------
% 64.55/9.60  % (5806)Success in time 9.223 s
%------------------------------------------------------------------------------