%------------------------------------------------------------------------------
% File     : iProver---3.9
% Problem  : PUZ020-1 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover %s %d THM

% Computer : n027.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 : Fri May  3 02:54:36 EDT 2024

% Result   : Unsatisfiable 0.65s 1.17s
% Output   : CNFRefutation 0.65s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    2
%            Number of leaves      :    5
% Syntax   : Number of clauses     :    7 (   3 unt;   1 nHn;   7 RR)
%            Number of literals    :   13 (   0 equ;   6 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-1 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-1 aty)
%            Number of variables   :    1 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(c_55,plain,
    ( ~ a_truth(statement_by(X0))
    | ~ person(X0)
    | knight(X0) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',knights_make_true_statements) ).

cnf(c_59,plain,
    person(husband),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',husband) ).

cnf(c_65,plain,
    ( a_truth(statement_by(husband))
    | knight(wife) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',knight_wife_or_truthful_husband) ).

cnf(c_66,plain,
    ( ~ knight(wife)
    | a_truth(statement_by(husband)) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',knight_wife_means_truthful_husband) ).

cnf(c_67,negated_conjecture,
    ~ knight(husband),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_knight_husband) ).

cnf(c_72,plain,
    ( ~ a_truth(statement_by(husband))
    | ~ person(husband)
    | knight(husband) ),
    inference(instantiation,[status(thm)],[c_55]) ).

cnf(c_73,plain,
    $false,
    inference(prop_impl_just,[status(thm)],[c_72,c_66,c_65,c_67,c_59]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : PUZ020-1 : TPTP v8.1.2. Released v1.0.0.
% 0.03/0.13  % Command  : run_iprover %s %d THM
% 0.13/0.35  % Computer : n027.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 : Thu May  2 21:36:05 EDT 2024
% 0.13/0.35  % CPUTime  : 
% 0.20/0.47  Running first-order theorem proving
% 0.20/0.48  Running: /export/starexec/sandbox/solver/bin/run_problem --schedule fof_schedule --heuristic_context casc_unsat --no_cores 8 /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.65/1.17  % SZS status Started for theBenchmark.p
% 0.65/1.17  % SZS status Unsatisfiable for theBenchmark.p
% 0.65/1.17  
% 0.65/1.17  %---------------- iProver v3.9 (pre CASC 2024/SMT-COMP 2024) ----------------%
% 0.65/1.17  
% 0.65/1.17  ------  iProver source info
% 0.65/1.17  
% 0.65/1.17  git: date: 2024-05-02 19:28:25 +0000
% 0.65/1.17  git: sha1: a33b5eb135c74074ba803943bb12f2ebd971352f
% 0.65/1.17  git: non_committed_changes: false
% 0.65/1.17  
% 0.65/1.17  ------ Parsing...successful
% 0.65/1.17  
% 0.65/1.17  
% 0.65/1.17  
% 0.65/1.17  ------ Preprocessing...
% 0.65/1.17  
% 0.65/1.17  % SZS status Unsatisfiable for theBenchmark.p
% 0.65/1.17  
% 0.65/1.17  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.65/1.17  
% 0.65/1.17  
%------------------------------------------------------------------------------