TSTP Solution File: LCL238-1 by Otter---3.3
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%------------------------------------------------------------------------------
% File : Otter---3.3
% Problem : LCL238-1 : TPTP v8.1.0. Bugfixed v2.3.0.
% Transfm : none
% Format : tptp:raw
% Command : otter-tptp-script %s
% Computer : n020.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 : Wed Jul 27 13:04:01 EDT 2022
% Result : Unsatisfiable 2.00s 2.17s
% Output : Refutation 2.00s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 7
% Syntax : Number of clauses : 13 ( 10 unt; 0 nHn; 5 RR)
% Number of literals : 18 ( 0 equ; 6 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 6 ( 2 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-1 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 18 ( 1 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(1,axiom,
( theorem(A)
| ~ axiom(A) ),
file('LCL238-1.p',unknown),
[] ).
cnf(2,axiom,
( theorem(A)
| ~ axiom(or(not(B),A))
| ~ theorem(B) ),
file('LCL238-1.p',unknown),
[] ).
cnf(3,axiom,
( theorem(or(not(A),B))
| ~ axiom(or(not(A),C))
| ~ theorem(or(not(C),B)) ),
file('LCL238-1.p',unknown),
[] ).
cnf(4,axiom,
~ theorem(or(not(not(or(not(p),not(q)))),not(or(not(q),not(p))))),
file('LCL238-1.p',unknown),
[] ).
cnf(5,axiom,
axiom(or(not(or(A,A)),A)),
file('LCL238-1.p',unknown),
[] ).
cnf(6,axiom,
axiom(or(not(A),or(B,A))),
file('LCL238-1.p',unknown),
[] ).
cnf(7,axiom,
axiom(or(not(or(A,B)),or(B,A))),
file('LCL238-1.p',unknown),
[] ).
cnf(10,plain,
theorem(or(not(or(A,A)),A)),
inference(hyper,[status(thm)],[5,1]),
[iquote('hyper,5,1')] ).
cnf(12,plain,
theorem(or(not(A),A)),
inference(hyper,[status(thm)],[10,3,6]),
[iquote('hyper,10,3,6')] ).
cnf(21,plain,
theorem(or(A,not(A))),
inference(hyper,[status(thm)],[7,2,12]),
[iquote('hyper,7,2,12')] ).
cnf(24,plain,
theorem(or(not(or(A,B)),not(not(or(B,A))))),
inference(hyper,[status(thm)],[21,3,7]),
[iquote('hyper,21,3,7')] ).
cnf(143,plain,
theorem(or(not(not(or(A,B))),not(or(B,A)))),
inference(hyper,[status(thm)],[24,2,7]),
[iquote('hyper,24,2,7')] ).
cnf(144,plain,
$false,
inference(binary,[status(thm)],[143,4]),
[iquote('binary,143.1,4.1')] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12 % Problem : LCL238-1 : TPTP v8.1.0. Bugfixed v2.3.0.
% 0.03/0.13 % Command : otter-tptp-script %s
% 0.12/0.34 % Computer : n020.cluster.edu
% 0.12/0.34 % Model : x86_64 x86_64
% 0.12/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34 % Memory : 8042.1875MB
% 0.12/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34 % CPULimit : 300
% 0.12/0.34 % WCLimit : 300
% 0.12/0.34 % DateTime : Wed Jul 27 09:34:23 EDT 2022
% 0.12/0.34 % CPUTime :
% 2.00/2.17 ----- Otter 3.3f, August 2004 -----
% 2.00/2.17 The process was started by sandbox2 on n020.cluster.edu,
% 2.00/2.17 Wed Jul 27 09:34:23 2022
% 2.00/2.17 The command was "./otter". The process ID is 14630.
% 2.00/2.17
% 2.00/2.17 set(prolog_style_variables).
% 2.00/2.17 set(auto).
% 2.00/2.17 dependent: set(auto1).
% 2.00/2.17 dependent: set(process_input).
% 2.00/2.17 dependent: clear(print_kept).
% 2.00/2.17 dependent: clear(print_new_demod).
% 2.00/2.17 dependent: clear(print_back_demod).
% 2.00/2.17 dependent: clear(print_back_sub).
% 2.00/2.17 dependent: set(control_memory).
% 2.00/2.17 dependent: assign(max_mem, 12000).
% 2.00/2.17 dependent: assign(pick_given_ratio, 4).
% 2.00/2.17 dependent: assign(stats_level, 1).
% 2.00/2.17 dependent: assign(max_seconds, 10800).
% 2.00/2.17 clear(print_given).
% 2.00/2.17
% 2.00/2.17 list(usable).
% 2.00/2.17 0 [] axiom(or(not(or(A,A)),A)).
% 2.00/2.17 0 [] axiom(or(not(A),or(B,A))).
% 2.00/2.17 0 [] axiom(or(not(or(A,B)),or(B,A))).
% 2.00/2.17 0 [] axiom(or(not(or(A,or(B,C))),or(B,or(A,C)))).
% 2.00/2.17 0 [] axiom(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))).
% 2.00/2.17 0 [] theorem(X)| -axiom(X).
% 2.00/2.17 0 [] theorem(X)| -axiom(or(not(Y),X))| -theorem(Y).
% 2.00/2.17 0 [] theorem(or(not(X),Z))| -axiom(or(not(X),Y))| -theorem(or(not(Y),Z)).
% 2.00/2.17 0 [] -theorem(or(not(not(or(not(p),not(q)))),not(or(not(q),not(p))))).
% 2.00/2.17 end_of_list.
% 2.00/2.17
% 2.00/2.17 SCAN INPUT: prop=0, horn=1, equality=0, symmetry=0, max_lits=3.
% 2.00/2.17
% 2.00/2.17 This is a Horn set without equality. The strategy will
% 2.00/2.17 be hyperresolution, with satellites in sos and nuclei
% 2.00/2.17 in usable.
% 2.00/2.17
% 2.00/2.17 dependent: set(hyper_res).
% 2.00/2.17 dependent: clear(order_hyper).
% 2.00/2.17
% 2.00/2.17 ------------> process usable:
% 2.00/2.17 ** KEPT (pick-wt=4): 1 [] theorem(A)| -axiom(A).
% 2.00/2.17 ** KEPT (pick-wt=9): 2 [] theorem(A)| -axiom(or(not(B),A))| -theorem(B).
% 2.00/2.17 ** KEPT (pick-wt=15): 3 [] theorem(or(not(A),B))| -axiom(or(not(A),C))| -theorem(or(not(C),B)).
% 2.00/2.17 ** KEPT (pick-wt=15): 4 [] -theorem(or(not(not(or(not(p),not(q)))),not(or(not(q),not(p))))).
% 2.00/2.17
% 2.00/2.17 ------------> process sos:
% 2.00/2.17 ** KEPT (pick-wt=7): 5 [] axiom(or(not(or(A,A)),A)).
% 2.00/2.17 ** KEPT (pick-wt=7): 6 [] axiom(or(not(A),or(B,A))).
% 2.00/2.17 ** KEPT (pick-wt=9): 7 [] axiom(or(not(or(A,B)),or(B,A))).
% 2.00/2.17 ** KEPT (pick-wt=13): 8 [] axiom(or(not(or(A,or(B,C))),or(B,or(A,C)))).
% 2.00/2.17 ** KEPT (pick-wt=15): 9 [] axiom(or(not(or(not(A),B)),or(not(or(C,A)),or(C,B)))).
% 2.00/2.17
% 2.00/2.17 ======= end of input processing =======
% 2.00/2.17
% 2.00/2.17 =========== start of search ===========
% 2.00/2.17
% 2.00/2.17 -------- PROOF --------
% 2.00/2.17
% 2.00/2.17 ----> UNIT CONFLICT at 0.00 sec ----> 144 [binary,143.1,4.1] $F.
% 2.00/2.17
% 2.00/2.17 Length of proof is 5. Level of proof is 5.
% 2.00/2.17
% 2.00/2.17 ---------------- PROOF ----------------
% 2.00/2.17 % SZS status Unsatisfiable
% 2.00/2.17 % SZS output start Refutation
% See solution above
% 2.00/2.17 ------------ end of proof -------------
% 2.00/2.17
% 2.00/2.17
% 2.00/2.17 Search stopped by max_proofs option.
% 2.00/2.17
% 2.00/2.17
% 2.00/2.17 Search stopped by max_proofs option.
% 2.00/2.17
% 2.00/2.17 ============ end of search ============
% 2.00/2.17
% 2.00/2.17 -------------- statistics -------------
% 2.00/2.17 clauses given 31
% 2.00/2.17 clauses generated 197
% 2.00/2.17 clauses kept 143
% 2.00/2.17 clauses forward subsumed 63
% 2.00/2.17 clauses back subsumed 2
% 2.00/2.17 Kbytes malloced 976
% 2.00/2.17
% 2.00/2.17 ----------- times (seconds) -----------
% 2.00/2.17 user CPU time 0.00 (0 hr, 0 min, 0 sec)
% 2.00/2.17 system CPU time 0.00 (0 hr, 0 min, 0 sec)
% 2.00/2.17 wall-clock time 2 (0 hr, 0 min, 2 sec)
% 2.00/2.17
% 2.00/2.17 That finishes the proof of the theorem.
% 2.00/2.17
% 2.00/2.17 Process 14630 finished Wed Jul 27 09:34:25 2022
% 2.00/2.17 Otter interrupted
% 2.00/2.17 PROOF FOUND
%------------------------------------------------------------------------------