%------------------------------------------------------------------------------
% File : SOS---2.0
% Problem : SET117-7 : TPTP v8.1.0. Bugfixed v7.3.0.
% Transfm : none
% Format : tptp:raw
% Command : sos-script %s
% Computer : n010.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 05:16:02 EDT 2022
% Result : Unsatisfiable 1.02s 1.20s
% Output : Refutation 1.02s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.08/0.12 % Problem : SET117-7 : TPTP v8.1.0. Bugfixed v7.3.0.
% 0.08/0.12 % Command : sos-script %s
% 0.12/0.33 % Computer : n010.cluster.edu
% 0.12/0.33 % Model : x86_64 x86_64
% 0.12/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33 % Memory : 8042.1875MB
% 0.12/0.33 % OS : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33 % CPULimit : 300
% 0.12/0.33 % WCLimit : 600
% 0.12/0.33 % DateTime : Mon Jul 11 06:05:30 EDT 2022
% 0.12/0.34 % CPUTime :
% 0.12/0.37 ----- Otter 3.2, August 2001 -----
% 0.12/0.37 The process was started by sandbox2 on n010.cluster.edu,
% 0.12/0.37 Mon Jul 11 06:05:30 2022
% 0.12/0.37 The command was "./sos". The process ID is 7883.
% 0.12/0.37
% 0.12/0.37 set(prolog_style_variables).
% 0.12/0.37 set(auto).
% 0.12/0.37 dependent: set(auto1).
% 0.12/0.37 dependent: set(process_input).
% 0.12/0.37 dependent: clear(print_kept).
% 0.12/0.37 dependent: clear(print_new_demod).
% 0.12/0.37 dependent: clear(print_back_demod).
% 0.12/0.37 dependent: clear(print_back_sub).
% 0.12/0.37 dependent: set(control_memory).
% 0.12/0.37 dependent: assign(max_mem, 12000).
% 0.12/0.37 dependent: assign(pick_given_ratio, 4).
% 0.12/0.37 dependent: assign(stats_level, 1).
% 0.12/0.37 dependent: assign(pick_semantic_ratio, 3).
% 0.12/0.37 dependent: assign(sos_limit, 5000).
% 0.12/0.37 dependent: assign(max_weight, 60).
% 0.12/0.37 clear(print_given).
% 0.12/0.37
% 0.12/0.37 list(usable).
% 0.12/0.37
% 0.12/0.37 SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=5.
% 0.12/0.37
% 0.12/0.37 This ia a non-Horn set with equality. The strategy will be
% 0.12/0.37 Knuth-Bendix, ordered hyper_res, ur_res, factoring, and
% 0.12/0.37 unit deletion, with positive clauses in sos and nonpositive
% 0.12/0.37 clauses in usable.
% 0.12/0.37
% 0.12/0.37 dependent: set(knuth_bendix).
% 0.12/0.37 dependent: set(para_from).
% 0.12/0.37 dependent: set(para_into).
% 0.12/0.37 dependent: clear(para_from_right).
% 0.12/0.37 dependent: clear(para_into_right).
% 0.12/0.37 dependent: set(para_from_vars).
% 0.12/0.37 dependent: set(eq_units_both_ways).
% 0.12/0.37 dependent: set(dynamic_demod_all).
% 0.12/0.37 dependent: set(dynamic_demod).
% 0.12/0.37 dependent: set(order_eq).
% 0.12/0.37 dependent: set(back_demod).
% 0.12/0.37 dependent: set(lrpo).
% 0.12/0.37 dependent: set(hyper_res).
% 0.12/0.37 dependent: set(unit_deletion).
% 0.12/0.37 dependent: set(factor).
% 0.12/0.37
% 0.12/0.37 ------------> process usable:
% 0.12/0.37
% 0.12/0.37 ------------> process sos:
% 0.12/0.37 Following clause subsumed by 111 during input processing: 0 [demod,114] {-} member(unordered_pair(A,A),universal_class).
% 0.12/0.37 Following clause subsumed by 217 during input processing: 0 [] {-} member(ordered_pair(first(A),second(A)),cross_product(universal_class,universal_class))|first(A)=A.
% 0.12/0.37 Following clause subsumed by 218 during input processing: 0 [] {-} member(ordered_pair(first(A),second(A)),cross_product(universal_class,universal_class))|second(A)=A.
% 0.12/0.37 Following clause subsumed by 219 during input processing: 0 [] {-} ordered_pair(first(A),second(A))=A|first(A)=A.
% 0.12/0.37 Following clause subsumed by 220 during input processing: 0 [] {-} ordered_pair(first(A),second(A))=A|second(A)=A.
% 0.12/0.37 Following clause subsumed by 180 during input processing: 0 [copy,180,flip.1] {-} unordered_pair(A,B)=unordered_pair(B,A).
% 0.12/0.37 Following clause subsumed by 223 during input processing: 0 [copy,223,flip.1] {-} A=A.
% 0.12/0.37 223 back subsumes 106.
% 0.12/0.37 223 back subsumes 98.
% 0.12/0.37 Following clause subsumed by 207 during input processing: 0 [copy,254,flip.1] {-} unordered_pair(A,B)=union(unordered_pair(A,A),unordered_pair(B,B)).
% 0.12/0.37
% 0.12/0.37 ======= end of input processing =======
% 0.42/0.60
% 0.42/0.60 Stopped by limit on insertions
% 0.42/0.60
% 0.42/0.60
% 0.42/0.60 Failed to model usable list: disabling FINDER
% 0.42/0.60
% 0.42/0.60
% 0.42/0.60
% 0.42/0.60 -------------- Softie stats --------------
% 0.42/0.60
% 0.42/0.60 UPDATE_STOP: 300
% 0.42/0.60 SFINDER_TIME_LIMIT: 2
% 0.42/0.60 SHORT_CLAUSE_CUTOFF: 4
% 0.42/0.60 number of clauses in intial UL: 72
% 0.42/0.60 number of clauses initially in problem: 188
% 0.42/0.60 percentage of clauses intially in UL: 38
% 0.42/0.60 percentage of distinct symbols occuring in initial UL: 60
% 0.42/0.60 percent of all initial clauses that are short: 100
% 0.42/0.60 absolute distinct symbol count: 51
% 0.42/0.60 distinct predicate count: 10
% 0.42/0.60 distinct function count: 32
% 0.42/0.60 distinct constant count: 9
% 0.42/0.60
% 0.42/0.60 ---------- no more Softie stats ----------
% 0.42/0.60
% 0.42/0.60
% 0.42/0.60
% 0.42/0.60 =========== start of search ===========
% 0.70/0.89
% 0.70/0.89
% 0.70/0.89 Changing weight limit from 60 to 25.
% 0.70/0.89
% 0.70/0.89 Resetting weight limit to 25 after 105 givens.
% 0.70/0.89
% 0.76/0.97
% 0.76/0.97
% 0.76/0.97 Changing weight limit from 25 to 20.
% 0.76/0.97
% 0.76/0.97 Resetting weight limit to 20 after 110 givens.
% 0.76/0.97
% 0.84/1.04
% 0.84/1.04
% 0.84/1.04 Changing weight limit from 20 to 19.
% 0.84/1.04
% 0.84/1.04 Resetting weight limit to 19 after 115 givens.
% 0.84/1.04
% 0.84/1.07
% 0.84/1.07
% 0.84/1.07 Changing weight limit from 19 to 17.
% 0.84/1.07
% 0.84/1.07 Resetting weight limit to 17 after 120 givens.
% 0.84/1.07
% 0.91/1.15
% 0.91/1.15
% 0.91/1.15 Changing weight limit from 17 to 16.
% 0.91/1.15
% 0.91/1.15 Resetting weight limit to 16 after 125 givens.
% 0.91/1.15
% 1.02/1.20
% 1.02/1.20 -------- PROOF --------
% 1.02/1.20 % SZS status Unsatisfiable
% 1.02/1.20 % SZS output start Refutation
% 1.02/1.20
% 1.02/1.20 ----> UNIT CONFLICT at 0.81 sec ----> 7904 [binary,7903.1,97.1] {-} $F.
% 1.02/1.20
% 1.02/1.20 Length of proof is 1. Level of proof is 1.
% 1.02/1.20
% 1.02/1.20 ---------------- PROOF ----------------
% 1.02/1.20 % SZS status Unsatisfiable
% 1.02/1.20 % SZS output start Refutation
% 1.02/1.20
% 1.02/1.20 97 [] {+} -member(x,universal_class).
% 1.02/1.20 208 [] {-} member(ordered_pair(A,B),universal_class).
% 1.02/1.20 221 [] {-} ordered_pair(first(x),second(x))=x.
% 1.02/1.20 7903 [para_from,221.1.1,208.1.1] {-} member(x,universal_class).
% 1.02/1.20 7904 [binary,7903.1,97.1] {-} $F.
% 1.02/1.20
% 1.02/1.20 % SZS output end Refutation
% 1.02/1.20 ------------ end of proof -------------
% 1.02/1.20
% 1.02/1.20
% 1.02/1.20 Search stopped by max_proofs option.
% 1.02/1.20
% 1.02/1.20
% 1.02/1.20 Search stopped by max_proofs option.
% 1.02/1.20
% 1.02/1.20 ============ end of search ============
% 1.02/1.20
% 1.02/1.20 That finishes the proof of the theorem.
% 1.02/1.20
% 1.02/1.20 Process 7883 finished Mon Jul 11 06:05:31 2022
%------------------------------------------------------------------------------