%------------------------------------------------------------------------------
% File : Prover9---2026-6A
% Problem : LCL238-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : prover9 -casc 300 -f /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n006.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Sun Sep 27 07:58:26 AM UTC 2026
% Result : Unsatisfiable 0.06s 0.37s
% Output : CNFRefutation 0.06s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 9
% Syntax : Number of formulae : 45 ( 34 unt; 0 def)
% Number of atoms : 59 ( 4 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 37 ( 23 ~; 14 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 6 ( 2 avg)
% Maximal term depth : 7 ( 2 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 2 con; 0-2 aty)
% Number of variables : 82 ( 5 sgn 17 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(rule_1,axiom,
! [VAR_0] :
( ~ axiom(VAR_0)
| theorem(VAR_0) ),
file('theBenchmark.p',rule_1) ).
cnf(c_1,plain,
( ~ axiom(A)
| theorem(A) ),
inference(clausify,[status(thm)],[rule_1]) ).
fof(axiom_1_6,axiom,
! [VAR_0,VAR_1,VAR_2] : axiom(implies(implies(VAR_0,VAR_1),implies(or(VAR_2,VAR_0),or(VAR_2,VAR_1)))),
file('theBenchmark.p',axiom_1_6) ).
cnf(c_2,plain,
axiom(implies(implies(A,B),implies(or(C,A),or(C,B)))),
inference(clausify,[status(thm)],[axiom_1_6]) ).
fof(axiom_1_5,axiom,
! [VAR_0,VAR_1,VAR_2] : axiom(implies(or(VAR_0,or(VAR_1,VAR_2)),or(VAR_1,or(VAR_0,VAR_2)))),
file('theBenchmark.p',axiom_1_5) ).
cnf(c_3,plain,
axiom(implies(or(A,or(B,C)),or(B,or(A,C)))),
inference(clausify,[status(thm)],[axiom_1_5]) ).
fof(axiom_1_4,axiom,
! [VAR_0,VAR_1] : axiom(implies(or(VAR_0,VAR_1),or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_4) ).
cnf(c_4,plain,
axiom(implies(or(A,B),or(B,A))),
inference(clausify,[status(thm)],[axiom_1_4]) ).
fof(axiom_1_3,axiom,
! [VAR_0,VAR_1] : axiom(implies(VAR_0,or(VAR_1,VAR_0))),
file('theBenchmark.p',axiom_1_3) ).
cnf(c_5,plain,
axiom(implies(A,or(B,A))),
inference(clausify,[status(thm)],[axiom_1_3]) ).
cnf(c_8,plain,
theorem(implies(A,or(B,A))),
inference(resolve,[status(thm)],[c_1,c_5]) ).
cnf(c_9,plain,
theorem(implies(or(A,B),or(B,A))),
inference(resolve,[status(thm)],[c_1,c_4]) ).
cnf(c_10,plain,
theorem(implies(or(A,or(B,C)),or(B,or(A,C)))),
inference(resolve,[status(thm)],[c_1,c_3]) ).
cnf(c_11,plain,
theorem(implies(implies(A,B),implies(or(C,A),or(C,B)))),
inference(resolve,[status(thm)],[c_1,c_2]) ).
fof(prove_this,axiom,
~ theorem(implies(and(p,q),and(q,p))),
file('theBenchmark.p',prove_this) ).
cnf(c_12,plain,
~ theorem(implies(and(p,q),and(q,p))),
inference(clausify,[status(thm)],[prove_this]) ).
fof(and_defn,axiom,
! [VAR_0,VAR_1] : and(VAR_0,VAR_1) = not(or(not(VAR_0),not(VAR_1))),
file('theBenchmark.p',and_defn) ).
cnf(c_13,plain,
and(A,B) = not(or(not(A),not(B))),
inference(clausify,[status(thm)],[and_defn]) ).
fof(rule_2,axiom,
! [VAR_0,VAR_1] :
( ~ theorem(VAR_1)
| ~ theorem(implies(VAR_1,VAR_0))
| theorem(VAR_0) ),
file('theBenchmark.p',rule_2) ).
cnf(c_14,plain,
( ~ theorem(B)
| ~ theorem(implies(B,A))
| theorem(A) ),
inference(clausify,[status(thm)],[rule_2]) ).
fof(implies_definition,axiom,
! [VAR_0,VAR_1] : implies(VAR_0,VAR_1) = or(not(VAR_0),VAR_1),
file('theBenchmark.p',implies_definition) ).
cnf(c_15,plain,
implies(A,B) = or(not(A),B),
inference(clausify,[status(thm)],[implies_definition]) ).
cnf(c_116,plain,
~ theorem(implies(not(or(not(p),not(q))),and(q,p))),
inference(paramod,[status(thm)],[c_13,c_12]) ).
cnf(c_117,plain,
~ theorem(implies(not(or(not(p),not(q))),not(or(not(q),not(p))))),
inference(paramod,[status(thm)],[c_13,c_116]) ).
cnf(c_16,plain,
~ theorem(or(not(not(or(not(p),not(q)))),not(or(not(q),not(p))))),
inference(paramod,[status(thm)],[c_15,c_117]) ).
cnf(c_17,plain,
( ~ theorem(B)
| ~ theorem(or(not(B),A))
| theorem(A) ),
inference(paramod,[status(thm)],[c_15,c_14]) ).
cnf(c_118,plain,
theorem(implies(or(not(A),B),implies(or(C,A),or(C,B)))),
inference(paramod,[status(thm)],[c_15,c_11]) ).
cnf(c_119,plain,
theorem(implies(or(not(A),B),or(not(or(C,A)),or(C,B)))),
inference(paramod,[status(thm)],[c_15,c_118]) ).
cnf(c_18,plain,
theorem(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))),
inference(paramod,[status(thm)],[c_15,c_119]) ).
cnf(c_19,plain,
theorem(or(not(or(A,or(B,C))),or(B,or(A,C)))),
inference(paramod,[status(thm)],[c_15,c_10]) ).
cnf(c_20,plain,
theorem(or(not(or(A,B)),or(B,A))),
inference(paramod,[status(thm)],[c_15,c_9]) ).
cnf(c_21,plain,
theorem(or(not(A),or(B,A))),
inference(paramod,[status(thm)],[c_15,c_8]) ).
cnf(c_120,plain,
( ~ theorem(A)
| ~ theorem(or(not(A),or(not(not(or(not(p),not(q)))),not(or(not(q),not(p)))))) ),
inference(resolve,[status(thm)],[c_17,c_16]) ).
cnf(c_35,plain,
~ theorem(or(not(or(not(q),not(p))),not(not(or(not(p),not(q)))))),
inference(resolve,[status(thm)],[c_120,c_20]) ).
cnf(c_121,plain,
( ~ theorem(or(B,or(A,C)))
| theorem(or(A,or(B,C))) ),
inference(resolve,[status(thm)],[c_17,c_19]) ).
cnf(c_38,plain,
theorem(or(A,or(not(B),B))),
inference(resolve,[status(thm)],[c_121,c_21]) ).
cnf(c_122,plain,
( ~ theorem(A)
| ~ theorem(or(not(A),or(not(or(not(q),not(p))),not(not(or(not(p),not(q))))))) ),
inference(resolve,[status(thm)],[c_17,c_35]) ).
cnf(c_79,plain,
~ theorem(or(not(or(not(or(A,B)),or(B,A))),or(not(or(not(q),not(p))),not(not(or(not(p),not(q))))))),
inference(resolve,[status(thm)],[c_122,c_20]) ).
cnf(c_123,plain,
( ~ theorem(B)
| theorem(or(not(A),A)) ),
inference(resolve,[status(thm)],[c_17,c_38]) ).
cnf(c_97,plain,
theorem(or(not(A),A)),
inference(resolve,[status(thm)],[c_123,c_38]) ).
cnf(c_124,plain,
( ~ theorem(or(B,A))
| theorem(or(A,B)) ),
inference(resolve,[status(thm)],[c_17,c_20]) ).
cnf(c_105,plain,
theorem(or(A,not(A))),
inference(resolve,[status(thm)],[c_124,c_97]) ).
cnf(c_125,plain,
( ~ theorem(or(not(B),C))
| theorem(or(not(or(A,B)),or(A,C))) ),
inference(resolve,[status(thm)],[c_17,c_18]) ).
cnf(c_114,plain,
theorem(or(not(or(A,B)),or(A,not(not(B))))),
inference(resolve,[status(thm)],[c_125,c_105]) ).
cnf(c_115,plain,
$false,
inference(resolve,[status(thm)],[c_114,c_79]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : LCL238-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.03 % Command : prover9 -casc 300 -f /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.06/0.34 % Computer : n006.cluster.edu
% 0.06/0.34 % Model : x86_64 x86_64
% 0.06/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.34 % Memory : 8046.5625MB
% 0.06/0.34 % OS : Linux 6.8.0-71-generic
% 0.06/0.34 % CPULimit : 300
% 0.06/0.34 % WCLimit : 300
% 0.06/0.34 % DateTime : Fri Sep 25 22:05:10 UTC 2026
% 0.06/0.34 % CPUTime :
% 0.06/0.34 % Prover9 (64) version 2026-6A, July 2026, CASC-J13.
% 0.06/0.34 % Process 3867365 was started by sandbox2 on n006,
% 0.06/0.34 % Fri Sep 25 22:05:10 2026
% 0.06/0.34 % The command was "/export/starexec/sandbox2/solver/bin/prover9 -casc 300 -f /export/starexec/sandbox2/benchmark/theBenchmark.p".
% 0.06/0.35
% 0.06/0.35 % From the command line: assign(max_seconds, 300).
% 0.06/0.37
% 0.06/0.37 % SZS status Unsatisfiable for theBenchmark
% 0.06/0.37
% 0.06/0.37 % Proof 1 at 0.01 (+ 0.00) seconds.
% 0.06/0.37 % Length of proof is 26.
% 0.06/0.37 % Level of proof is 7.
% 0.06/0.37 % Maximum clause weight is 25.000.
% 0.06/0.37 % Given clauses 18.
% 0.06/0.37
% 0.06/0.37 % SZS output start CNFRefutation for theBenchmark
% See solution above
%------------------------------------------------------------------------------