TSTP Solution File: SET159+3 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : SET159+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s

% 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  : 300s
% DateTime : Thu Aug 31 14:33:23 EDT 2023

% Result   : Theorem 5.28s 5.42s
% Output   : CNFRefutation 5.28s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :   13
% Syntax   : Number of formulae    :   79 (  41 unt;   8 typ;   0 def)
%            Number of atoms       :  124 (  22 equ)
%            Maximal formula atoms :    7 (   1 avg)
%            Number of connectives :   84 (  31   ~;  42   |;   7   &)
%                                         (   3 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   2 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   10 (   5   >;   5   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :  197 (  26 sgn;  28   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    union: ( $i * $i ) > $i ).

tff(decl_23,type,
    member: ( $i * $i ) > $o ).

tff(decl_24,type,
    subset: ( $i * $i ) > $o ).

tff(decl_25,type,
    esk1_2: ( $i * $i ) > $i ).

tff(decl_26,type,
    esk2_2: ( $i * $i ) > $i ).

tff(decl_27,type,
    esk3_0: $i ).

tff(decl_28,type,
    esk4_0: $i ).

tff(decl_29,type,
    esk5_0: $i ).

fof(subset_defn,axiom,
    ! [X1,X2] :
      ( subset(X1,X2)
    <=> ! [X3] :
          ( member(X3,X1)
         => member(X3,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',subset_defn) ).

fof(union_defn,axiom,
    ! [X1,X2,X3] :
      ( member(X3,union(X1,X2))
    <=> ( member(X3,X1)
        | member(X3,X2) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',union_defn) ).

fof(commutativity_of_union,axiom,
    ! [X1,X2] : union(X1,X2) = union(X2,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_of_union) ).

fof(equal_defn,axiom,
    ! [X1,X2] :
      ( X1 = X2
    <=> ( subset(X1,X2)
        & subset(X2,X1) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',equal_defn) ).

fof(prove_associativity_of_union,conjecture,
    ! [X1,X2,X3] : union(union(X1,X2),X3) = union(X1,union(X2,X3)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_associativity_of_union) ).

fof(c_0_5,plain,
    ! [X11,X12,X13,X14,X15] :
      ( ( ~ subset(X11,X12)
        | ~ member(X13,X11)
        | member(X13,X12) )
      & ( member(esk1_2(X14,X15),X14)
        | subset(X14,X15) )
      & ( ~ member(esk1_2(X14,X15),X15)
        | subset(X14,X15) ) ),
    inference(distribute,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(shift_quantors,[status(thm)],[inference(fof_nnf,[status(thm)],[subset_defn])])])])])]) ).

fof(c_0_6,plain,
    ! [X4,X5,X6] :
      ( ( ~ member(X6,union(X4,X5))
        | member(X6,X4)
        | member(X6,X5) )
      & ( ~ member(X6,X4)
        | member(X6,union(X4,X5)) )
      & ( ~ member(X6,X5)
        | member(X6,union(X4,X5)) ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[union_defn])])]) ).

cnf(c_0_7,plain,
    ( subset(X1,X2)
    | ~ member(esk1_2(X1,X2),X2) ),
    inference(split_conjunct,[status(thm)],[c_0_5]) ).

cnf(c_0_8,plain,
    ( member(X1,union(X3,X2))
    | ~ member(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_6]) ).

cnf(c_0_9,plain,
    ( subset(X1,union(X2,X3))
    | ~ member(esk1_2(X1,union(X2,X3)),X3) ),
    inference(spm,[status(thm)],[c_0_7,c_0_8]) ).

cnf(c_0_10,plain,
    ( member(X1,union(X2,X3))
    | ~ member(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_6]) ).

cnf(c_0_11,plain,
    ( member(X1,X2)
    | member(X1,X3)
    | ~ member(X1,union(X2,X3)) ),
    inference(split_conjunct,[status(thm)],[c_0_6]) ).

cnf(c_0_12,plain,
    ( member(esk1_2(X1,X2),X1)
    | subset(X1,X2) ),
    inference(split_conjunct,[status(thm)],[c_0_5]) ).

cnf(c_0_13,plain,
    ( subset(X1,union(X2,union(X3,X4)))
    | ~ member(esk1_2(X1,union(X2,union(X3,X4))),X4) ),
    inference(spm,[status(thm)],[c_0_9,c_0_8]) ).

fof(c_0_14,plain,
    ! [X9,X10] : union(X9,X10) = union(X10,X9),
    inference(variable_rename,[status(thm)],[commutativity_of_union]) ).

cnf(c_0_15,plain,
    ( subset(X1,union(X2,X3))
    | ~ member(esk1_2(X1,union(X2,X3)),X2) ),
    inference(spm,[status(thm)],[c_0_7,c_0_10]) ).

cnf(c_0_16,plain,
    ( subset(union(X1,X2),X3)
    | member(esk1_2(union(X1,X2),X3),X1)
    | member(esk1_2(union(X1,X2),X3),X2) ),
    inference(spm,[status(thm)],[c_0_11,c_0_12]) ).

cnf(c_0_17,plain,
    subset(X1,union(X2,union(X3,X1))),
    inference(spm,[status(thm)],[c_0_13,c_0_12]) ).

cnf(c_0_18,plain,
    union(X1,X2) = union(X2,X1),
    inference(split_conjunct,[status(thm)],[c_0_14]) ).

cnf(c_0_19,plain,
    ( subset(X1,union(union(X2,X3),X4))
    | ~ member(esk1_2(X1,union(union(X2,X3),X4)),X3) ),
    inference(spm,[status(thm)],[c_0_15,c_0_8]) ).

cnf(c_0_20,plain,
    ( subset(union(X1,X2),union(X3,X2))
    | member(esk1_2(union(X1,X2),union(X3,X2)),X1) ),
    inference(spm,[status(thm)],[c_0_9,c_0_16]) ).

fof(c_0_21,plain,
    ! [X7,X8] :
      ( ( subset(X7,X8)
        | X7 != X8 )
      & ( subset(X8,X7)
        | X7 != X8 )
      & ( ~ subset(X7,X8)
        | ~ subset(X8,X7)
        | X7 = X8 ) ),
    inference(distribute,[status(thm)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[equal_defn])])]) ).

cnf(c_0_22,plain,
    ( subset(union(X1,X1),X2)
    | member(esk1_2(union(X1,X1),X2),X1) ),
    inference(ef,[status(thm)],[c_0_16]) ).

cnf(c_0_23,plain,
    subset(X1,union(X2,union(X1,X3))),
    inference(spm,[status(thm)],[c_0_17,c_0_18]) ).

cnf(c_0_24,plain,
    subset(union(X1,X2),union(union(X3,X1),X2)),
    inference(spm,[status(thm)],[c_0_19,c_0_20]) ).

cnf(c_0_25,plain,
    ( X1 = X2
    | ~ subset(X1,X2)
    | ~ subset(X2,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_21]) ).

cnf(c_0_26,plain,
    subset(union(X1,X1),X1),
    inference(spm,[status(thm)],[c_0_7,c_0_22]) ).

cnf(c_0_27,plain,
    subset(X1,union(X1,X2)),
    inference(spm,[status(thm)],[c_0_15,c_0_12]) ).

cnf(c_0_28,plain,
    ( member(X3,X2)
    | ~ subset(X1,X2)
    | ~ member(X3,X1) ),
    inference(split_conjunct,[status(thm)],[c_0_5]) ).

cnf(c_0_29,plain,
    subset(X1,union(union(X1,X2),X3)),
    inference(spm,[status(thm)],[c_0_23,c_0_18]) ).

cnf(c_0_30,plain,
    subset(union(X1,X2),union(X2,union(X3,X1))),
    inference(spm,[status(thm)],[c_0_24,c_0_18]) ).

cnf(c_0_31,plain,
    union(X1,X1) = X1,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_26]),c_0_27])]) ).

cnf(c_0_32,plain,
    ( member(X1,union(union(X2,X3),X4))
    | ~ member(X1,X2) ),
    inference(spm,[status(thm)],[c_0_28,c_0_29]) ).

cnf(c_0_33,plain,
    ( subset(X1,union(X2,union(X3,X4)))
    | ~ member(esk1_2(X1,union(X2,union(X3,X4))),X3) ),
    inference(spm,[status(thm)],[c_0_9,c_0_10]) ).

cnf(c_0_34,plain,
    ( subset(union(X1,X2),X2)
    | member(esk1_2(union(X1,X2),X2),X1) ),
    inference(spm,[status(thm)],[c_0_7,c_0_16]) ).

cnf(c_0_35,plain,
    subset(union(X1,X2),union(X2,X1)),
    inference(spm,[status(thm)],[c_0_30,c_0_31]) ).

cnf(c_0_36,plain,
    ( subset(X1,union(X2,union(union(X3,X4),X5)))
    | ~ member(esk1_2(X1,union(X2,union(union(X3,X4),X5))),X3) ),
    inference(spm,[status(thm)],[c_0_9,c_0_32]) ).

cnf(c_0_37,plain,
    ( subset(union(X1,X2),union(X2,X3))
    | member(esk1_2(union(X1,X2),union(X2,X3)),X1) ),
    inference(spm,[status(thm)],[c_0_15,c_0_16]) ).

cnf(c_0_38,plain,
    subset(union(X1,union(X2,union(X1,X3))),union(X2,union(X1,X3))),
    inference(spm,[status(thm)],[c_0_33,c_0_34]) ).

cnf(c_0_39,plain,
    subset(X1,union(X2,X1)),
    inference(spm,[status(thm)],[c_0_9,c_0_12]) ).

cnf(c_0_40,plain,
    ( member(X1,union(X2,X3))
    | ~ member(X1,union(X3,X2)) ),
    inference(spm,[status(thm)],[c_0_28,c_0_35]) ).

cnf(c_0_41,plain,
    subset(union(X1,X2),union(X2,union(union(X1,X3),X4))),
    inference(spm,[status(thm)],[c_0_36,c_0_37]) ).

cnf(c_0_42,plain,
    union(X1,union(X2,union(X1,X3))) = union(X2,union(X1,X3)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_38]),c_0_39])]) ).

cnf(c_0_43,plain,
    subset(union(X1,union(union(X1,X2),X3)),union(union(X1,X2),X3)),
    inference(spm,[status(thm)],[c_0_38,c_0_18]) ).

cnf(c_0_44,plain,
    ( subset(union(union(X1,X2),X3),X3)
    | member(esk1_2(union(union(X1,X2),X3),X3),union(X2,X1)) ),
    inference(spm,[status(thm)],[c_0_40,c_0_34]) ).

cnf(c_0_45,plain,
    ( subset(union(union(X1,X2),X3),X3)
    | member(esk1_2(union(union(X1,X2),X3),X3),X1)
    | member(esk1_2(union(union(X1,X2),X3),X3),X2) ),
    inference(spm,[status(thm)],[c_0_11,c_0_34]) ).

cnf(c_0_46,plain,
    subset(union(X1,X2),union(union(X1,X3),union(X2,X4))),
    inference(spm,[status(thm)],[c_0_41,c_0_42]) ).

cnf(c_0_47,plain,
    union(X1,union(union(X1,X2),X3)) = union(union(X1,X2),X3),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_43]),c_0_39])]) ).

cnf(c_0_48,plain,
    subset(union(union(X1,X2),union(X2,X1)),union(X2,X1)),
    inference(spm,[status(thm)],[c_0_7,c_0_44]) ).

cnf(c_0_49,plain,
    ( subset(union(union(X1,X2),union(X3,X2)),union(X3,X2))
    | member(esk1_2(union(union(X1,X2),union(X3,X2)),union(X3,X2)),X1) ),
    inference(spm,[status(thm)],[c_0_9,c_0_45]) ).

cnf(c_0_50,plain,
    ( subset(X1,union(union(X2,X3),X4))
    | ~ member(esk1_2(X1,union(union(X2,X3),X4)),X2) ),
    inference(spm,[status(thm)],[c_0_15,c_0_10]) ).

cnf(c_0_51,plain,
    subset(union(X1,X2),union(union(X1,X3),union(union(X2,X4),X5))),
    inference(spm,[status(thm)],[c_0_46,c_0_47]) ).

cnf(c_0_52,plain,
    union(union(X1,X2),union(X2,X1)) = union(X2,X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_48]),c_0_39])]) ).

cnf(c_0_53,plain,
    subset(union(union(X1,X2),union(union(X3,X1),X2)),union(union(X3,X1),X2)),
    inference(spm,[status(thm)],[c_0_19,c_0_49]) ).

cnf(c_0_54,plain,
    subset(union(X1,X2),union(union(X1,X3),X2)),
    inference(spm,[status(thm)],[c_0_50,c_0_20]) ).

cnf(c_0_55,plain,
    subset(union(union(X1,X2),X3),union(union(X2,X1),union(union(X3,X4),X5))),
    inference(spm,[status(thm)],[c_0_51,c_0_52]) ).

cnf(c_0_56,plain,
    union(union(X1,X2),union(union(X3,X1),X2)) = union(union(X3,X1),X2),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_53]),c_0_39])]) ).

fof(c_0_57,negated_conjecture,
    ~ ! [X1,X2,X3] : union(union(X1,X2),X3) = union(X1,union(X2,X3)),
    inference(assume_negation,[status(cth)],[prove_associativity_of_union]) ).

cnf(c_0_58,plain,
    subset(union(X1,X2),union(X2,union(X1,X3))),
    inference(spm,[status(thm)],[c_0_54,c_0_18]) ).

cnf(c_0_59,plain,
    subset(union(X1,X2),union(union(X2,X3),X1)),
    inference(spm,[status(thm)],[c_0_54,c_0_18]) ).

cnf(c_0_60,plain,
    subset(union(union(X1,X2),X3),union(union(X3,X2),X1)),
    inference(spm,[status(thm)],[c_0_55,c_0_56]) ).

fof(c_0_61,negated_conjecture,
    union(union(esk3_0,esk4_0),esk5_0) != union(esk3_0,union(esk4_0,esk5_0)),
    inference(skolemize,[status(esa)],[inference(variable_rename,[status(thm)],[inference(fof_nnf,[status(thm)],[c_0_57])])]) ).

cnf(c_0_62,plain,
    subset(union(union(X1,X2),X3),union(X3,union(X2,X1))),
    inference(spm,[status(thm)],[c_0_58,c_0_52]) ).

cnf(c_0_63,plain,
    subset(union(X1,union(X2,X3)),union(union(X3,X2),X1)),
    inference(spm,[status(thm)],[c_0_59,c_0_52]) ).

cnf(c_0_64,plain,
    union(union(X1,X2),X3) = union(union(X3,X2),X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_60]),c_0_60])]) ).

cnf(c_0_65,negated_conjecture,
    union(union(esk3_0,esk4_0),esk5_0) != union(esk3_0,union(esk4_0,esk5_0)),
    inference(split_conjunct,[status(thm)],[c_0_61]) ).

cnf(c_0_66,plain,
    union(X1,union(X2,X3)) = union(union(X3,X2),X1),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_62]),c_0_63])]) ).

cnf(c_0_67,plain,
    union(union(X1,X2),X3) = union(X1,union(X3,X2)),
    inference(spm,[status(thm)],[c_0_18,c_0_64]) ).

cnf(c_0_68,negated_conjecture,
    union(esk5_0,union(esk3_0,esk4_0)) != union(esk3_0,union(esk4_0,esk5_0)),
    inference(rw,[status(thm)],[c_0_65,c_0_18]) ).

cnf(c_0_69,plain,
    union(X1,union(X2,X3)) = union(X3,union(X1,X2)),
    inference(rw,[status(thm)],[c_0_66,c_0_67]) ).

cnf(c_0_70,negated_conjecture,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_68,c_0_69])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem    : SET159+3 : TPTP v8.1.2. Released v2.2.0.
% 0.00/0.13  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.13/0.35  % Computer : n003.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit   : 300
% 0.13/0.35  % WCLimit    : 300
% 0.13/0.35  % DateTime   : Sat Aug 26 14:59:09 EDT 2023
% 0.20/0.35  % CPUTime  : 
% 0.20/0.57  start to proof: theBenchmark
% 5.28/5.41  % Version  : CSE_E---1.5
% 5.28/5.41  % Problem  : theBenchmark.p
% 5.28/5.42  % Proof found
% 5.28/5.42  % SZS status Theorem for theBenchmark.p
% 5.28/5.42  % SZS output start Proof
% See solution above
% 5.28/5.42  % Total time : 4.842000 s
% 5.28/5.42  % SZS output end Proof
% 5.28/5.42  % Total time : 4.845000 s
%------------------------------------------------------------------------------