TSTP Solution File: PUZ008-3 by E-SAT---3.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : E-SAT---3.1
% Problem  : PUZ008-3 : TPTP v8.1.2. Released v1.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_E %s %d THM

% Computer : n029.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 : 2400s
% WCLimit  : 300s
% DateTime : Tue Oct 10 19:12:14 EDT 2023

% Result   : Unsatisfiable 0.21s 0.54s
% Output   : CNFRefutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   10
% Syntax   : Number of clauses     :   36 (  13 unt;   0 nHn;  30 RR)
%            Number of literals    :   91 (   0 equ;  60 neg)
%            Maximal clause size   :    6 (   2 avg)
%            Maximal term depth    :    6 (   2 avg)
%            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   :   64 (   8 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(same_or_more_missionaries_is_safe,axiom,
    ( safe(X1,X2)
    | ~ greater_or_equal(X1,X2) ),
    file('/export/starexec/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',same_or_more_missionaries_is_safe) ).

cnf(great_eq_recursive,axiom,
    ( greater_or_equal(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    file('/export/starexec/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',great_eq_recursive) ).

cnf(great_eq_base,axiom,
    greater_or_equal(X1,n0),
    file('/export/starexec/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',great_eq_base) ).

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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',start_on_west_bank) ).

cnf(no_missionaries_is_safe,axiom,
    safe(n0,X1),
    file('/export/starexec/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',no_missionaries_is_safe) ).

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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',missionary_and_cannibal_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/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p',prove_can_get_to_east_bank) ).

cnf(c_0_10,axiom,
    ( safe(X1,X2)
    | ~ greater_or_equal(X1,X2) ),
    same_or_more_missionaries_is_safe ).

cnf(c_0_11,axiom,
    ( greater_or_equal(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    great_eq_recursive ).

cnf(c_0_12,plain,
    ( safe(s(X1),s(X2))
    | ~ greater_or_equal(X1,X2) ),
    inference(spm,[status(thm)],[c_0_10,c_0_11]) ).

cnf(c_0_13,axiom,
    greater_or_equal(X1,n0),
    great_eq_base ).

cnf(c_0_14,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_15,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_16,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_17,axiom,
    safe(n0,X1),
    no_missionaries_is_safe ).

cnf(c_0_18,plain,
    safe(s(X1),s(n0)),
    inference(spm,[status(thm)],[c_0_12,c_0_13]) ).

cnf(c_0_19,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_20,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_14,c_0_15]) ).

cnf(c_0_21,hypothesis,
    achievable(west(m(s(s(s(n0)))),c(s(n0))),boatoneast,east(m(n0),c(s(s(n0))))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_14,c_0_16]),c_0_17]),c_0_18])]) ).

cnf(c_0_22,plain,
    safe(X1,n0),
    inference(spm,[status(thm)],[c_0_10,c_0_13]) ).

cnf(c_0_23,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_24,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_19,c_0_15]) ).

cnf(c_0_25,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))) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_21]),c_0_17]),c_0_22]),c_0_17])]) ).

cnf(c_0_26,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_19,c_0_23]) ).

cnf(c_0_27,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(n0)),s(s(n0))) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_24,c_0_25]),c_0_18]),c_0_18]),c_0_17])]) ).

cnf(c_0_28,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))) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_26,c_0_27]),c_0_18]),c_0_17]),c_0_18])]) ).

cnf(c_0_29,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))) ),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_28]),c_0_17]),c_0_17]),c_0_22])]) ).

cnf(c_0_30,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_31,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))) ),
    inference(sr,[status(thm)],[inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_20,c_0_29]),c_0_17]),c_0_22]),c_0_18])]),c_0_30]) ).

cnf(c_0_32,plain,
    ( safe(s(s(X1)),s(s(X2)))
    | ~ greater_or_equal(X1,X2) ),
    inference(spm,[status(thm)],[c_0_12,c_0_11]) ).

cnf(c_0_33,hypothesis,
    ( ~ greater_or_equal(s(n0),s(n0))
    | ~ safe(s(s(s(n0))),s(s(n0))) ),
    inference(csr,[status(thm)],[inference(spm,[status(thm)],[c_0_31,c_0_32]),c_0_12]) ).

cnf(c_0_34,hypothesis,
    ~ safe(s(s(s(n0))),s(s(n0))),
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_33,c_0_11]),c_0_13])]) ).

cnf(c_0_35,hypothesis,
    $false,
    inference(cn,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_34,c_0_32]),c_0_13])]),
    [proof] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.15  % Problem    : PUZ008-3 : TPTP v8.1.2. Released v1.2.0.
% 0.08/0.16  % Command    : run_E %s %d THM
% 0.14/0.38  % Computer : n029.cluster.edu
% 0.14/0.38  % Model    : x86_64 x86_64
% 0.14/0.38  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.38  % Memory   : 8042.1875MB
% 0.14/0.38  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.38  % CPULimit   : 2400
% 0.14/0.38  % WCLimit    : 300
% 0.14/0.38  % DateTime   : Mon Oct  2 19:13:52 EDT 2023
% 0.14/0.38  % CPUTime    : 
% 0.21/0.52  Running first-order model finding
% 0.21/0.52  Running: /export/starexec/sandbox/solver/bin/eprover --delete-bad-limit=2000000000 --definitional-cnf=24 -s --print-statistics -R --print-version --proof-object --satauto-schedule=8 --cpu-limit=300 /export/starexec/sandbox/tmp/tmp.rAG4PnOwIu/E---3.1_7537.p
% 0.21/0.54  # Version: 3.1pre001
% 0.21/0.54  # Preprocessing class: FSMSSMSSSSSNFFN.
% 0.21/0.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.21/0.54  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.21/0.54  # Starting new_bool_3 with 300s (1) cores
% 0.21/0.54  # Starting new_bool_1 with 300s (1) cores
% 0.21/0.54  # Starting sh5l with 300s (1) cores
% 0.21/0.54  # G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with pid 7614 completed with status 0
% 0.21/0.54  # Result found by G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN
% 0.21/0.54  # Preprocessing class: FSMSSMSSSSSNFFN.
% 0.21/0.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.21/0.54  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.21/0.54  # No SInE strategy applied
% 0.21/0.54  # Search class: FHUNS-FFMF21-MFFFFFNN
% 0.21/0.54  # partial match(1): FHUNS-FFSF21-MFFFFFNN
% 0.21/0.54  # Scheduled 6 strats onto 5 cores with 1500 seconds (1500 total)
% 0.21/0.54  # Starting H----_011_C07_F1_PI_AE_Q4_CS_SP_PS_S0V with 811s (1) cores
% 0.21/0.54  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 0.21/0.54  # Starting H----_011_C07_F1_PI_SE_SP_S0V with 136s (1) cores
% 0.21/0.54  # Starting new_bool_3 with 136s (1) cores
% 0.21/0.54  # Starting new_bool_1 with 136s (1) cores
% 0.21/0.54  # G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with pid 7619 completed with status 0
% 0.21/0.54  # Result found by G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN
% 0.21/0.54  # Preprocessing class: FSMSSMSSSSSNFFN.
% 0.21/0.54  # Scheduled 4 strats onto 8 cores with 300 seconds (2400 total)
% 0.21/0.54  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 1500s (5) cores
% 0.21/0.54  # No SInE strategy applied
% 0.21/0.54  # Search class: FHUNS-FFMF21-MFFFFFNN
% 0.21/0.54  # partial match(1): FHUNS-FFSF21-MFFFFFNN
% 0.21/0.54  # Scheduled 6 strats onto 5 cores with 1500 seconds (1500 total)
% 0.21/0.54  # Starting H----_011_C07_F1_PI_AE_Q4_CS_SP_PS_S0V with 811s (1) cores
% 0.21/0.54  # Starting G-E--_208_C18_F1_SE_CS_SOS_SP_PS_S5PRR_RG_S04AN with 151s (1) cores
% 0.21/0.54  # Preprocessing time       : 0.001 s
% 0.21/0.54  # Presaturation interreduction done
% 0.21/0.54  
% 0.21/0.54  # Proof found!
% 0.21/0.54  # SZS status Unsatisfiable
% 0.21/0.54  # SZS output start CNFRefutation
% See solution above
% 0.21/0.54  # Parsed axioms                        : 16
% 0.21/0.54  # Removed by relevancy pruning/SinE    : 0
% 0.21/0.54  # Initial clauses                      : 16
% 0.21/0.54  # Removed in clause preprocessing      : 0
% 0.21/0.54  # Initial clauses in saturation        : 16
% 0.21/0.54  # Processed clauses                    : 74
% 0.21/0.54  # ...of these trivial                  : 0
% 0.21/0.54  # ...subsumed                          : 6
% 0.21/0.54  # ...remaining for further processing  : 68
% 0.21/0.54  # Other redundant clauses eliminated   : 0
% 0.21/0.54  # Clauses deleted for lack of memory   : 0
% 0.21/0.54  # Backward-subsumed                    : 10
% 0.21/0.54  # Backward-rewritten                   : 0
% 0.21/0.54  # Generated clauses                    : 149
% 0.21/0.54  # ...of the previous two non-redundant : 129
% 0.21/0.54  # ...aggressively subsumed             : 0
% 0.21/0.54  # Contextual simplify-reflections      : 1
% 0.21/0.54  # Paramodulations                      : 149
% 0.21/0.54  # Factorizations                       : 0
% 0.21/0.54  # NegExts                              : 0
% 0.21/0.54  # Equation resolutions                 : 0
% 0.21/0.54  # Total rewrite steps                  : 167
% 0.21/0.54  # Propositional unsat checks           : 0
% 0.21/0.54  #    Propositional check models        : 0
% 0.21/0.54  #    Propositional check unsatisfiable : 0
% 0.21/0.54  #    Propositional clauses             : 0
% 0.21/0.54  #    Propositional clauses after purity: 0
% 0.21/0.54  #    Propositional unsat core size     : 0
% 0.21/0.54  #    Propositional preprocessing time  : 0.000
% 0.21/0.54  #    Propositional encoding time       : 0.000
% 0.21/0.54  #    Propositional solver time         : 0.000
% 0.21/0.54  #    Success case prop preproc time    : 0.000
% 0.21/0.54  #    Success case prop encoding time   : 0.000
% 0.21/0.54  #    Success case prop solver time     : 0.000
% 0.21/0.54  # Current number of processed clauses  : 42
% 0.21/0.54  #    Positive orientable unit clauses  : 6
% 0.21/0.54  #    Positive unorientable unit clauses: 0
% 0.21/0.54  #    Negative unit clauses             : 2
% 0.21/0.54  #    Non-unit-clauses                  : 34
% 0.21/0.54  # Current number of unprocessed clauses: 87
% 0.21/0.54  # ...number of literals in the above   : 544
% 0.21/0.54  # Current number of archived formulas  : 0
% 0.21/0.54  # Current number of archived clauses   : 26
% 0.21/0.54  # Clause-clause subsumption calls (NU) : 1843
% 0.21/0.54  # Rec. Clause-clause subsumption calls : 568
% 0.21/0.54  # Non-unit clause-clause subsumptions  : 7
% 0.21/0.54  # Unit Clause-clause subsumption calls : 16
% 0.21/0.54  # Rewrite failures with RHS unbound    : 0
% 0.21/0.54  # BW rewrite match attempts            : 7
% 0.21/0.54  # BW rewrite match successes           : 0
% 0.21/0.54  # Condensation attempts                : 0
% 0.21/0.54  # Condensation successes               : 0
% 0.21/0.54  # Termbank termtop insertions          : 9308
% 0.21/0.54  
% 0.21/0.54  # -------------------------------------------------
% 0.21/0.54  # User time                : 0.009 s
% 0.21/0.54  # System time              : 0.002 s
% 0.21/0.54  # Total time               : 0.011 s
% 0.21/0.54  # Maximum resident set size: 1668 pages
% 0.21/0.54  
% 0.21/0.54  # -------------------------------------------------
% 0.21/0.54  # User time                : 0.048 s
% 0.21/0.54  # System time              : 0.006 s
% 0.21/0.54  # Total time               : 0.054 s
% 0.21/0.54  # Maximum resident set size: 1692 pages
% 0.21/0.54  % E---3.1 exiting
%------------------------------------------------------------------------------