TSTP Solution File: PUZ008-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : PUZ008-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n032.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  : 600s
% DateTime : Mon Jul 18 18:23:49 EDT 2022

% Result   : Unsatisfiable 0.52s 0.78s
% Output   : Refutation 0.52s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.09  % Problem  : PUZ008-1 : TPTP v8.1.0. Released v1.0.0.
% 0.05/0.09  % Command  : tptp2X_and_run_prover9 %d %s
% 0.09/0.28  % Computer : n032.cluster.edu
% 0.09/0.28  % Model    : x86_64 x86_64
% 0.09/0.28  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.28  % Memory   : 8042.1875MB
% 0.09/0.28  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.28  % CPULimit : 300
% 0.09/0.28  % WCLimit  : 600
% 0.09/0.28  % DateTime : Sun May 29 02:13:11 EDT 2022
% 0.09/0.28  % CPUTime  : 
% 0.47/0.78  ============================== Prover9 ===============================
% 0.47/0.78  Prover9 (32) version 2009-11A, November 2009.
% 0.47/0.78  Process 26938 was started by sandbox on n032.cluster.edu,
% 0.47/0.78  Sun May 29 02:13:11 2022
% 0.47/0.78  The command was "/export/starexec/sandbox/solver/bin/prover9 -t 300 -f /tmp/Prover9_26563_n032.cluster.edu".
% 0.47/0.78  ============================== end of head ===========================
% 0.47/0.78  
% 0.47/0.78  ============================== INPUT =================================
% 0.47/0.78  
% 0.47/0.78  % Reading from file /tmp/Prover9_26563_n032.cluster.edu
% 0.47/0.78  
% 0.47/0.78  set(prolog_style_variables).
% 0.47/0.78  set(auto2).
% 0.47/0.78      % set(auto2) -> set(auto).
% 0.47/0.78      % set(auto) -> set(auto_inference).
% 0.47/0.78      % set(auto) -> set(auto_setup).
% 0.47/0.78      % set(auto_setup) -> set(predicate_elim).
% 0.47/0.78      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.47/0.78      % set(auto) -> set(auto_limits).
% 0.47/0.78      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.47/0.78      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.47/0.78      % set(auto) -> set(auto_denials).
% 0.47/0.78      % set(auto) -> set(auto_process).
% 0.47/0.78      % set(auto2) -> assign(new_constants, 1).
% 0.47/0.78      % set(auto2) -> assign(fold_denial_max, 3).
% 0.47/0.78      % set(auto2) -> assign(max_weight, "200.000").
% 0.47/0.78      % set(auto2) -> assign(max_hours, 1).
% 0.47/0.78      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.47/0.78      % set(auto2) -> assign(max_seconds, 0).
% 0.47/0.78      % set(auto2) -> assign(max_minutes, 5).
% 0.47/0.78      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.47/0.78      % set(auto2) -> set(sort_initial_sos).
% 0.47/0.78      % set(auto2) -> assign(sos_limit, -1).
% 0.47/0.78      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.47/0.78      % set(auto2) -> assign(max_megs, 400).
% 0.47/0.78      % set(auto2) -> assign(stats, some).
% 0.47/0.78      % set(auto2) -> clear(echo_input).
% 0.47/0.78      % set(auto2) -> set(quiet).
% 0.47/0.78      % set(auto2) -> clear(print_initial_clauses).
% 0.47/0.78      % set(auto2) -> clear(print_given).
% 0.47/0.78  assign(lrs_ticks,-1).
% 0.47/0.78  assign(sos_limit,10000).
% 0.47/0.78  assign(order,kbo).
% 0.47/0.78  set(lex_order_vars).
% 0.47/0.78  clear(print_given).
% 0.47/0.78  
% 0.47/0.78  % formulas(sos).  % not echoed (16 formulas)
% 0.47/0.78  
% 0.47/0.78  ============================== end of input ==========================
% 0.47/0.78  
% 0.47/0.78  % From the command line: assign(max_seconds, 300).
% 0.47/0.78  
% 0.47/0.78  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.52/0.78  
% 0.52/0.78  % Formulas that are not ordinary clauses:
% 0.52/0.78  
% 0.52/0.78  ============================== end of process non-clausal formulas ===
% 0.52/0.78  
% 0.52/0.78  ============================== PROCESS INITIAL CLAUSES ===============
% 0.52/0.78  
% 0.52/0.78  ============================== PREDICATE ELIMINATION =================
% 0.52/0.78  
% 0.52/0.78  ============================== end predicate elimination =============
% 0.52/0.78  
% 0.52/0.78  Auto_denials:
% 0.52/0.78    % copying label prove_can_get_to_east_bank to answer in negative clause
% 0.52/0.78  
% 0.52/0.78  Term ordering decisions:
% 0.52/0.78  Function symbol KB weights:  boatonwest=1. boatoneast=1. n0=1. east=1. west=1. s=1. c=1. m=1.
% 0.52/0.78  
% 0.52/0.78  ============================== end of process initial clauses ========
% 0.52/0.78  
% 0.52/0.78  ============================== CLAUSES FOR SEARCH ====================
% 0.52/0.78  
% 0.52/0.78  ============================== end of clauses for search =============
% 0.52/0.78  
% 0.52/0.78  ============================== SEARCH ================================
% 0.52/0.78  
% 0.52/0.78  % Starting search at 0.01 seconds.
% 0.52/0.78  
% 0.52/0.78  ============================== PROOF =================================
% 0.52/0.78  % SZS status Unsatisfiable
% 0.52/0.78  % SZS output start Refutation
% 0.52/0.78  
% 0.52/0.78  % Proof 1 at 0.01 (+ 0.00) seconds: prove_can_get_to_east_bank.
% 0.52/0.78  % Length of proof is 5.
% 0.52/0.78  % Level of proof is 2.
% 0.52/0.78  % Maximum clause weight is 26.000.
% 0.52/0.78  % Given clauses 9.
% 0.52/0.78  
% 0.52/0.78  2 achievable(west(A,B),C,east(m(s(D)),c(s(s(D))))) # label(extra_cannibal_meal_on_east_bank) # label(axiom).  [assumption].
% 0.52/0.78  6 -achievable(west(m(n0),c(n0)),A,east(m(s(s(s(n0)))),c(s(s(s(n0)))))) # label(prove_can_get_to_east_bank) # label(negated_conjecture) # answer(prove_can_get_to_east_bank).  [assumption].
% 0.52/0.78  9 -achievable(west(m(s(A)),c(B)),boatonwest,east(m(C),c(D))) | achievable(west(m(A),c(B)),boatoneast,east(m(s(C)),c(D))) # label(missionary_west_to_east) # label(axiom).  [assumption].
% 0.52/0.78  23 -achievable(west(m(s(n0)),c(n0)),boatonwest,east(m(s(s(n0))),c(s(s(s(n0)))))) # answer(prove_can_get_to_east_bank).  [resolve(9,b,6,a)].
% 0.52/0.78  24 $F # answer(prove_can_get_to_east_bank).  [resolve(23,a,2,a)].
% 0.52/0.78  
% 0.52/0.78  % SZS output end Refutation
% 0.52/0.78  ============================== end of proof ==========================
% 0.52/0.78  
% 0.52/0.78  ============================== STATISTICS ============================
% 0.52/0.78  
% 0.52/0.78  Given=9. Generated=28. Kept=23. proofs=1.
% 0.52/0.78  Usable=9. Sos=13. Demods=0. Limbo=0, Disabled=16. Hints=0.
% 0.52/0.78  Megabytes=0.06.
% 0.52/0.78  User_CPU=0.01, System_CPU=0.00, Wall_clock=0.
% 0.52/0.78  
% 0.52/0.78  ============================== end of statistics =====================
% 0.52/0.78  
% 0.52/0.78  ============================== end of search =========================
% 0.52/0.78  
% 0.52/0.78  THEOREM PROVED
% 0.52/0.78  % SZS status Unsatisfiable
% 0.52/0.78  
% 0.52/0.78  Exiting with 1 proof.
% 0.52/0.78  
% 0.52/0.78  Process 26938 exit (max_proofs) Sun May 29 02:13:11 2022
% 0.52/0.78  Prover9 interrupted
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