TSTP Solution File: PUZ008-3 by CSE_E---1.5

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : CSE_E---1.5
% Problem  : PUZ008-3 : TPTP v8.1.2. Released v1.2.0.
% 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 13:11:30 EDT 2023

% Result   : Unsatisfiable 0.16s 0.57s
% Output   : CNFRefutation 0.16s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :   23
% Syntax   : Number of formulae    :   53 (  11 unt;  11 typ;   0 def)
%            Number of atoms       :  131 (   0 equ)
%            Maximal formula atoms :    6 (   3 avg)
%            Number of connectives :  186 (  97   ~;  89   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   4 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   14 (   8   >;   6   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-3 aty)
%            Number of functors    :    8 (   8 usr;   3 con; 0-2 aty)
%            Number of variables   :   81 (   7 sgn;   0   !;   0   ?;   0   :)

% Comments : 
%------------------------------------------------------------------------------
tff(decl_22,type,
    n0: $i ).

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

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

tff(decl_25,type,
    s: $i > $i ).

tff(decl_26,type,
    m: $i > $i ).

tff(decl_27,type,
    c: $i > $i ).

tff(decl_28,type,
    west: ( $i * $i ) > $i ).

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

tff(decl_30,type,
    east: ( $i * $i ) > $i ).

tff(decl_31,type,
    achievable: ( $i * $i * $i ) > $o ).

tff(decl_32,type,
    boatoneast: $i ).

cnf(two_cannibals_west_to_east,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(X3),c(s(s(X4)))))
    | ~ achievable(west(m(X1),c(s(s(X2)))),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(X3,s(s(X4))) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',two_cannibals_west_to_east) ).

cnf(cannibal_east_to_west,axiom,
    ( achievable(west(m(X1),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(X3),c(s(X4))))
    | ~ safe(X1,s(X2))
    | ~ safe(X3,X4) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cannibal_east_to_west) ).

cnf(start_on_west_bank,hypothesis,
    achievable(west(m(s(s(s(n0)))),c(s(s(s(n0))))),boatonwest,east(m(n0),c(n0))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',start_on_west_bank) ).

cnf(no_missionaries_is_safe,axiom,
    safe(n0,X1),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',no_missionaries_is_safe) ).

cnf(same_or_more_missionaries_is_safe,axiom,
    ( safe(X1,X2)
    | ~ greater_or_equal(X1,X2) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',same_or_more_missionaries_is_safe) ).

cnf(great_eq_base,axiom,
    greater_or_equal(X1,n0),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',great_eq_base) ).

cnf(two_missionaries_west_to_east,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(s(s(X3))),c(X4)))
    | ~ achievable(west(m(s(s(X1))),c(X2)),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(s(s(X3)),X4) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',two_missionaries_west_to_east) ).

cnf(missionary_and_cannibal_east_to_west,axiom,
    ( achievable(west(m(s(X1)),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ safe(s(X1),s(X2))
    | ~ safe(X3,X4) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',missionary_and_cannibal_east_to_west) ).

cnf(missionary_and_cannibal_west_to_east,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ achievable(west(m(s(X1)),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(s(X3),s(X4)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',missionary_and_cannibal_west_to_east) ).

cnf(missionary_east_to_west,axiom,
    ( achievable(west(m(s(X1)),c(X2)),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(X4)))
    | ~ safe(s(X1),X2)
    | ~ safe(X3,X4) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',missionary_east_to_west) ).

cnf(prove_can_get_to_east_bank,negated_conjecture,
    ~ achievable(west(m(n0),c(n0)),X1,east(m(s(s(s(n0)))),c(s(s(s(n0)))))),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_can_get_to_east_bank) ).

cnf(great_eq_recursive,axiom,
    ( greater_or_equal(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',great_eq_recursive) ).

cnf(c_0_12,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(X3),c(s(s(X4)))))
    | ~ achievable(west(m(X1),c(s(s(X2)))),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(X3,s(s(X4))) ),
    two_cannibals_west_to_east ).

cnf(c_0_13,axiom,
    ( achievable(west(m(X1),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(X3),c(s(X4))))
    | ~ safe(X1,s(X2))
    | ~ safe(X3,X4) ),
    cannibal_east_to_west ).

cnf(c_0_14,hypothesis,
    achievable(west(m(s(s(s(n0)))),c(s(s(s(n0))))),boatonwest,east(m(n0),c(n0))),
    start_on_west_bank ).

cnf(c_0_15,axiom,
    safe(n0,X1),
    no_missionaries_is_safe ).

cnf(c_0_16,axiom,
    ( safe(X1,X2)
    | ~ greater_or_equal(X1,X2) ),
    same_or_more_missionaries_is_safe ).

cnf(c_0_17,axiom,
    greater_or_equal(X1,n0),
    great_eq_base ).

cnf(c_0_18,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(s(s(X3))),c(X4)))
    | ~ achievable(west(m(s(s(X1))),c(X2)),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(s(s(X3)),X4) ),
    two_missionaries_west_to_east ).

cnf(c_0_19,plain,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(X3),c(s(s(X4)))))
    | ~ achievable(west(m(X1),c(s(X2))),boatoneast,east(m(X3),c(s(X4))))
    | ~ safe(X3,s(s(X4)))
    | ~ safe(X1,s(s(X2)))
    | ~ safe(X1,X2)
    | ~ safe(X3,X4) ),
    inference(spm,[status(thm)],[c_0_12,c_0_13]) ).

cnf(c_0_20,hypothesis,
    ( achievable(west(m(s(s(s(n0)))),c(s(n0))),boatoneast,east(m(n0),c(s(s(n0)))))
    | ~ safe(s(s(s(n0))),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_12,c_0_14]),c_0_15])]) ).

cnf(c_0_21,plain,
    safe(X1,n0),
    inference(spm,[status(thm)],[c_0_16,c_0_17]) ).

cnf(c_0_22,axiom,
    ( achievable(west(m(s(X1)),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ safe(s(X1),s(X2))
    | ~ safe(X3,X4) ),
    missionary_and_cannibal_east_to_west ).

cnf(c_0_23,plain,
    ( achievable(west(m(X1),c(s(X2))),boatoneast,east(m(s(s(X3))),c(X4)))
    | ~ achievable(west(m(s(s(X1))),c(X2)),boatoneast,east(m(X3),c(s(X4))))
    | ~ safe(s(s(X1)),s(X2))
    | ~ safe(s(s(X3)),X4)
    | ~ safe(X1,s(X2))
    | ~ safe(X3,X4) ),
    inference(spm,[status(thm)],[c_0_18,c_0_13]) ).

cnf(c_0_24,hypothesis,
    ( achievable(west(m(s(s(s(n0)))),c(n0)),boatoneast,east(m(n0),c(s(s(s(n0))))))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_19,c_0_20]),c_0_15]),c_0_21]),c_0_15])]) ).

cnf(c_0_25,plain,
    ( achievable(west(m(X1),c(s(X2))),boatoneast,east(m(s(s(X3))),c(X4)))
    | ~ achievable(west(m(s(X1)),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ safe(s(s(X1)),s(X2))
    | ~ safe(s(s(X3)),X4)
    | ~ safe(X1,s(X2))
    | ~ safe(X3,X4) ),
    inference(spm,[status(thm)],[c_0_18,c_0_22]) ).

cnf(c_0_26,hypothesis,
    ( achievable(west(m(s(n0)),c(s(n0))),boatoneast,east(m(s(s(n0))),c(s(s(n0)))))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(s(n0)),s(s(n0)))
    | ~ safe(s(n0),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_23,c_0_24]),c_0_15])]) ).

cnf(c_0_27,axiom,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ achievable(west(m(s(X1)),c(s(X2))),boatonwest,east(m(X3),c(X4)))
    | ~ safe(X1,X2)
    | ~ safe(s(X3),s(X4)) ),
    missionary_and_cannibal_west_to_east ).

cnf(c_0_28,axiom,
    ( achievable(west(m(s(X1)),c(X2)),boatonwest,east(m(X3),c(X4)))
    | ~ achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(X4)))
    | ~ safe(s(X1),X2)
    | ~ safe(X3,X4) ),
    missionary_east_to_west ).

cnf(c_0_29,hypothesis,
    ( achievable(west(m(n0),c(s(s(n0)))),boatoneast,east(m(s(s(s(n0)))),c(s(n0))))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(n0)),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(n0),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_25,c_0_26]),c_0_15])]) ).

cnf(c_0_30,plain,
    ( achievable(west(m(X1),c(X2)),boatoneast,east(m(s(X3)),c(s(X4))))
    | ~ achievable(west(m(X1),c(s(X2))),boatoneast,east(m(s(X3)),c(X4)))
    | ~ safe(s(X3),s(X4))
    | ~ safe(s(X1),s(X2))
    | ~ safe(X1,X2)
    | ~ safe(X3,X4) ),
    inference(spm,[status(thm)],[c_0_27,c_0_28]) ).

cnf(c_0_31,hypothesis,
    ( achievable(west(m(n0),c(s(n0))),boatoneast,east(m(s(s(s(n0)))),c(s(s(n0)))))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(n0)),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(n0),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_19,c_0_29]),c_0_15]),c_0_15]),c_0_21])]) ).

cnf(c_0_32,negated_conjecture,
    ~ achievable(west(m(n0),c(n0)),X1,east(m(s(s(s(n0)))),c(s(s(s(n0)))))),
    prove_can_get_to_east_bank ).

cnf(c_0_33,axiom,
    ( greater_or_equal(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    great_eq_recursive ).

cnf(c_0_34,hypothesis,
    ( ~ safe(s(s(s(n0))),s(s(s(n0))))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(n0)),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(n0),s(n0)) ),
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_30,c_0_31]),c_0_21])]),c_0_32]) ).

cnf(c_0_35,plain,
    ( safe(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    inference(spm,[status(thm)],[c_0_16,c_0_33]) ).

cnf(c_0_36,hypothesis,
    ( ~ greater_or_equal(s(s(n0)),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(s(n0)))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(n0),s(n0)) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_34,c_0_35]),c_0_16]) ).

cnf(c_0_37,hypothesis,
    ( ~ greater_or_equal(s(s(n0)),s(s(n0)))
    | ~ greater_or_equal(s(s(n0)),s(n0))
    | ~ safe(s(s(s(n0))),s(n0))
    | ~ safe(s(n0),s(n0)) ),
    inference(spm,[status(thm)],[c_0_36,c_0_35]) ).

cnf(c_0_38,hypothesis,
    ( ~ greater_or_equal(s(s(n0)),s(n0))
    | ~ greater_or_equal(s(n0),s(n0))
    | ~ safe(s(s(s(n0))),s(n0)) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_37,c_0_33]),c_0_16]) ).

cnf(c_0_39,hypothesis,
    ( ~ greater_or_equal(s(s(n0)),s(n0))
    | ~ greater_or_equal(s(n0),s(n0)) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_38,c_0_35]),c_0_17])]) ).

cnf(c_0_40,hypothesis,
    ~ greater_or_equal(s(n0),s(n0)),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_39,c_0_33]),c_0_17])]) ).

cnf(c_0_41,hypothesis,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_40,c_0_33]),c_0_17])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.10  % Problem    : PUZ008-3 : TPTP v8.1.2. Released v1.2.0.
% 0.00/0.11  % Command    : java -jar /export/starexec/sandbox2/solver/bin/mcs_scs.jar %d %s
% 0.10/0.31  % Computer : n003.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31  % CPULimit   : 300
% 0.10/0.31  % WCLimit    : 300
% 0.10/0.31  % DateTime   : Sat Aug 26 22:37:54 EDT 2023
% 0.10/0.31  % CPUTime  : 
% 0.16/0.55  start to proof: theBenchmark
% 0.16/0.57  % Version  : CSE_E---1.5
% 0.16/0.57  % Problem  : theBenchmark.p
% 0.16/0.57  % Proof found
% 0.16/0.57  % SZS status Theorem for theBenchmark.p
% 0.16/0.57  % SZS output start Proof
% See solution above
% 0.16/0.57  % Total time : 0.016000 s
% 0.16/0.57  % SZS output end Proof
% 0.16/0.57  % Total time : 0.018000 s
%------------------------------------------------------------------------------