%------------------------------------------------------------------------------
% File : SOS---2.0
% Problem : SET093-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : sos-script %s
% Computer : n025.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 05:15:39 EDT 2022
% Result : Unsatisfiable 0.19s 0.77s
% Output : Refutation 0.19s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12 % Problem : SET093-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.11/0.13 % Command : sos-script %s
% 0.12/0.34 % Computer : n025.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 : 600
% 0.12/0.34 % DateTime : Sun Jul 10 15:34:01 EDT 2022
% 0.12/0.34 % CPUTime :
% 0.12/0.36 ----- Otter 3.2, August 2001 -----
% 0.12/0.36 The process was started by sandbox on n025.cluster.edu,
% 0.12/0.36 Sun Jul 10 15:34:01 2022
% 0.12/0.36 The command was "./sos". The process ID is 22215.
% 0.12/0.36
% 0.12/0.36 set(prolog_style_variables).
% 0.12/0.36 set(auto).
% 0.12/0.36 dependent: set(auto1).
% 0.12/0.36 dependent: set(process_input).
% 0.12/0.36 dependent: clear(print_kept).
% 0.12/0.36 dependent: clear(print_new_demod).
% 0.12/0.36 dependent: clear(print_back_demod).
% 0.12/0.36 dependent: clear(print_back_sub).
% 0.12/0.36 dependent: set(control_memory).
% 0.12/0.36 dependent: assign(max_mem, 12000).
% 0.12/0.36 dependent: assign(pick_given_ratio, 4).
% 0.12/0.36 dependent: assign(stats_level, 1).
% 0.12/0.36 dependent: assign(pick_semantic_ratio, 3).
% 0.12/0.36 dependent: assign(sos_limit, 5000).
% 0.12/0.36 dependent: assign(max_weight, 60).
% 0.12/0.36 clear(print_given).
% 0.12/0.36
% 0.12/0.36 list(usable).
% 0.12/0.36
% 0.12/0.36 SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=5.
% 0.12/0.36
% 0.12/0.36 This ia a non-Horn set with equality. The strategy will be
% 0.12/0.36 Knuth-Bendix, ordered hyper_res, ur_res, factoring, and
% 0.12/0.36 unit deletion, with positive clauses in sos and nonpositive
% 0.12/0.36 clauses in usable.
% 0.12/0.36
% 0.12/0.36 dependent: set(knuth_bendix).
% 0.12/0.36 dependent: set(para_from).
% 0.12/0.36 dependent: set(para_into).
% 0.12/0.36 dependent: clear(para_from_right).
% 0.12/0.36 dependent: clear(para_into_right).
% 0.12/0.36 dependent: set(para_from_vars).
% 0.12/0.36 dependent: set(eq_units_both_ways).
% 0.12/0.36 dependent: set(dynamic_demod_all).
% 0.12/0.36 dependent: set(dynamic_demod).
% 0.12/0.36 dependent: set(order_eq).
% 0.12/0.36 dependent: set(back_demod).
% 0.12/0.36 dependent: set(lrpo).
% 0.12/0.36 dependent: set(hyper_res).
% 0.12/0.36 dependent: set(unit_deletion).
% 0.12/0.36 dependent: set(factor).
% 0.12/0.36
% 0.12/0.36 ------------> process usable:
% 0.12/0.36
% 0.12/0.36 ------------> process sos:
% 0.12/0.36 Following clause subsumed by 138 during input processing: 0 [copy,138,flip.1] {-} A=A.
% 0.12/0.36 138 back subsumes 61.
% 0.12/0.36
% 0.12/0.36 ======= end of input processing =======
% 0.19/0.73
% 0.19/0.73 Stopped by limit on insertions
% 0.19/0.73
% 0.19/0.73
% 0.19/0.73 Failed to model usable list: disabling FINDER
% 0.19/0.73
% 0.19/0.73
% 0.19/0.73
% 0.19/0.73 -------------- Softie stats --------------
% 0.19/0.73
% 0.19/0.73 UPDATE_STOP: 300
% 0.19/0.73 SFINDER_TIME_LIMIT: 2
% 0.19/0.73 SHORT_CLAUSE_CUTOFF: 4
% 0.19/0.73 number of clauses in intial UL: 49
% 0.19/0.73 number of clauses initially in problem: 121
% 0.19/0.73 percentage of clauses intially in UL: 40
% 0.19/0.73 percentage of distinct symbols occuring in initial UL: 62
% 0.19/0.73 percent of all initial clauses that are short: 100
% 0.19/0.73 absolute distinct symbol count: 50
% 0.19/0.73 distinct predicate count: 10
% 0.19/0.73 distinct function count: 31
% 0.19/0.73 distinct constant count: 9
% 0.19/0.73
% 0.19/0.73 ---------- no more Softie stats ----------
% 0.19/0.73
% 0.19/0.73
% 0.19/0.73
% 0.19/0.73 =========== start of search ===========
% 0.19/0.77
% 0.19/0.77 -------- PROOF --------
% 0.19/0.77 % SZS status Unsatisfiable
% 0.19/0.77 % SZS output start Refutation
% 0.19/0.77
% 0.19/0.77 ----> UNIT CONFLICT at 0.38 sec ----> 2108 [binary,2107.1,60.1] {-} $F.
% 0.19/0.77
% 0.19/0.77 Length of proof is 3. Level of proof is 3.
% 0.19/0.77
% 0.19/0.77 ---------------- PROOF ----------------
% 0.19/0.77 % SZS status Unsatisfiable
% 0.19/0.77 % SZS output start Refutation
% 0.19/0.77
% 0.19/0.77 60 [] {+} -member(x,universal_class).
% 0.19/0.77 71 [] {-} member(unordered_pair(A,B),universal_class).
% 0.19/0.77 72 [] {-} unordered_pair(A,A)=singleton(A).
% 0.19/0.77 74,73 [copy,72,flip.1] {-} singleton(A)=unordered_pair(A,A).
% 0.19/0.77 135 [] {-} singleton(member_of(x))=x.
% 0.19/0.77 136 [copy,135,demod,74] {-} unordered_pair(member_of(x),member_of(x))=x.
% 0.19/0.77 2107 [para_from,136.1.1,71.1.1] {-} member(x,universal_class).
% 0.19/0.77 2108 [binary,2107.1,60.1] {-} $F.
% 0.19/0.77
% 0.19/0.77 % SZS output end Refutation
% 0.19/0.77 ------------ end of proof -------------
% 0.19/0.77
% 0.19/0.77
% 0.19/0.77 Search stopped by max_proofs option.
% 0.19/0.77
% 0.19/0.77
% 0.19/0.77 Search stopped by max_proofs option.
% 0.19/0.77
% 0.19/0.77 ============ end of search ============
% 0.19/0.77
% 0.19/0.77 That finishes the proof of the theorem.
% 0.19/0.77
% 0.19/0.77 Process 22215 finished Sun Jul 10 15:34:02 2022
%------------------------------------------------------------------------------