TSTP Solution File: SET874+1 by SOS---2.0
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% File : SOS---2.0
% Problem : SET874+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : sos-script %s
% Computer : n013.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 : Tue Jul 19 05:21:30 EDT 2022
% Result : Theorem 0.14s 0.42s
% Output : Refutation 0.14s
% Verified :
% SZS Type : -
% Comments :
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%----WARNING: Could not form TPTP format derivation
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%----ORIGINAL SYSTEM OUTPUT
% 0.13/0.12 % Problem : SET874+1 : TPTP v8.1.0. Released v3.2.0.
% 0.13/0.13 % Command : sos-script %s
% 0.14/0.34 % Computer : n013.cluster.edu
% 0.14/0.34 % Model : x86_64 x86_64
% 0.14/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34 % Memory : 8042.1875MB
% 0.14/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34 % CPULimit : 300
% 0.14/0.34 % WCLimit : 600
% 0.14/0.34 % DateTime : Mon Jul 11 06:45:59 EDT 2022
% 0.14/0.35 % CPUTime :
% 0.14/0.36 ----- Otter 3.2, August 2001 -----
% 0.14/0.36 The process was started by sandbox2 on n013.cluster.edu,
% 0.14/0.36 Mon Jul 11 06:45:59 2022
% 0.14/0.36 The command was "./sos". The process ID is 23431.
% 0.14/0.36
% 0.14/0.36 set(prolog_style_variables).
% 0.14/0.36 set(auto).
% 0.14/0.36 dependent: set(auto1).
% 0.14/0.36 dependent: set(process_input).
% 0.14/0.36 dependent: clear(print_kept).
% 0.14/0.36 dependent: clear(print_new_demod).
% 0.14/0.36 dependent: clear(print_back_demod).
% 0.14/0.36 dependent: clear(print_back_sub).
% 0.14/0.36 dependent: set(control_memory).
% 0.14/0.36 dependent: assign(max_mem, 12000).
% 0.14/0.36 dependent: assign(pick_given_ratio, 4).
% 0.14/0.36 dependent: assign(stats_level, 1).
% 0.14/0.36 dependent: assign(pick_semantic_ratio, 3).
% 0.14/0.36 dependent: assign(sos_limit, 5000).
% 0.14/0.36 dependent: assign(max_weight, 60).
% 0.14/0.36 clear(print_given).
% 0.14/0.36
% 0.14/0.36 formula_list(usable).
% 0.14/0.36
% 0.14/0.36 SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=4.
% 0.14/0.36
% 0.14/0.36 This ia a non-Horn set with equality. The strategy will be
% 0.14/0.36 Knuth-Bendix, ordered hyper_res, ur_res, factoring, and
% 0.14/0.36 unit deletion, with positive clauses in sos and nonpositive
% 0.14/0.36 clauses in usable.
% 0.14/0.36
% 0.14/0.36 dependent: set(knuth_bendix).
% 0.14/0.36 dependent: set(para_from).
% 0.14/0.36 dependent: set(para_into).
% 0.14/0.36 dependent: clear(para_from_right).
% 0.14/0.36 dependent: clear(para_into_right).
% 0.14/0.36 dependent: set(para_from_vars).
% 0.14/0.36 dependent: set(eq_units_both_ways).
% 0.14/0.36 dependent: set(dynamic_demod_all).
% 0.14/0.36 dependent: set(dynamic_demod).
% 0.14/0.36 dependent: set(order_eq).
% 0.14/0.36 dependent: set(back_demod).
% 0.14/0.36 dependent: set(lrpo).
% 0.14/0.36 dependent: set(hyper_res).
% 0.14/0.36 dependent: set(unit_deletion).
% 0.14/0.36 dependent: set(factor).
% 0.14/0.36
% 0.14/0.36 ------------> process usable:
% 0.14/0.36
% 0.14/0.36 ------------> process sos:
% 0.14/0.36 Following clause subsumed by 14 during input processing: 0 [copy,14,flip.1] {-} unordered_pair(A,B)=unordered_pair(B,A).
% 0.14/0.36 Following clause subsumed by 15 during input processing: 0 [copy,15,flip.1] {-} set_union2(A,B)=set_union2(B,A).
% 0.14/0.36 Following clause subsumed by 20 during input processing: 0 [copy,20,flip.1] {-} A=A.
% 0.14/0.36
% 0.14/0.36 ======= end of input processing =======
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42 Failed to model usable list: disabling FINDER
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42 -------------- Softie stats --------------
% 0.14/0.42
% 0.14/0.42 UPDATE_STOP: 300
% 0.14/0.42 SFINDER_TIME_LIMIT: 2
% 0.14/0.42 SHORT_CLAUSE_CUTOFF: 4
% 0.14/0.42 number of clauses in intial UL: 13
% 0.14/0.42 number of clauses initially in problem: 21
% 0.14/0.42 percentage of clauses intially in UL: 61
% 0.14/0.42 percentage of distinct symbols occuring in initial UL: 90
% 0.14/0.42 percent of all initial clauses that are short: 100
% 0.14/0.42 absolute distinct symbol count: 11
% 0.14/0.42 distinct predicate count: 3
% 0.14/0.42 distinct function count: 4
% 0.14/0.42 distinct constant count: 4
% 0.14/0.42
% 0.14/0.42 ---------- no more Softie stats ----------
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42 =========== start of search ===========
% 0.14/0.42
% 0.14/0.42 -------- PROOF --------
% 0.14/0.42 % SZS status Theorem
% 0.14/0.42 % SZS output start Refutation
% 0.14/0.42
% 0.14/0.42 ----> UNIT CONFLICT at 0.03 sec ----> 45 [binary,44.1,14.1] {+} $F.
% 0.14/0.42
% 0.14/0.42 Length of proof is 4. Level of proof is 3.
% 0.14/0.42
% 0.14/0.42 ---------------- PROOF ----------------
% 0.14/0.42 % SZS status Theorem
% 0.14/0.42 % SZS output start Refutation
% 0.14/0.42
% 0.14/0.42 4 [] {+} A!=unordered_pair(B,C)|in(D,A)|D!=C.
% 0.14/0.42 9 [] {+} -in(A,B)|set_union2(singleton(A),B)=B.
% 0.14/0.42 11 [] {+} set_union2(singleton($c4),unordered_pair($c4,$c3))!=unordered_pair($c4,$c3).
% 0.14/0.42 14 [] {-} unordered_pair(A,B)=unordered_pair(B,A).
% 0.14/0.42 20 [] {-} A=A.
% 0.14/0.42 29 [para_from,14.1.1,11.1.1.2] {-} set_union2(singleton($c4),unordered_pair($c3,$c4))!=unordered_pair($c4,$c3).
% 0.14/0.42 35 [hyper,20,4,20] {-} in(A,unordered_pair(B,A)).
% 0.14/0.42 43,42 [hyper,35,9] {-} set_union2(singleton(A),unordered_pair(B,A))=unordered_pair(B,A).
% 0.14/0.42 44 [back_demod,29,demod,43,flip.1] {-} unordered_pair($c4,$c3)!=unordered_pair($c3,$c4).
% 0.14/0.42 45 [binary,44.1,14.1] {+} $F.
% 0.14/0.42
% 0.14/0.42 % SZS output end Refutation
% 0.14/0.42 ------------ end of proof -------------
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42 Search stopped by max_proofs option.
% 0.14/0.42
% 0.14/0.42
% 0.14/0.42 Search stopped by max_proofs option.
% 0.14/0.42
% 0.14/0.42 ============ end of search ============
% 0.14/0.42
% 0.14/0.42 That finishes the proof of the theorem.
% 0.14/0.42
% 0.14/0.42 Process 23431 finished Mon Jul 11 06:46:00 2022
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