TSTP Solution File: SWC209-1 by SOS---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SOS---2.0
% Problem  : SWC209-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : sos-script %s

% Computer : n012.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 21:59:55 EDT 2022

% Result   : Unsatisfiable 0.20s 0.43s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SWC209-1 : TPTP v8.1.0. Released v2.4.0.
% 0.12/0.13  % Command  : sos-script %s
% 0.14/0.34  % Computer : n012.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 : Sun Jun 12 05:05:41 EDT 2022
% 0.14/0.34  % CPUTime  : 
% 0.20/0.43  
% 0.20/0.43  -------- PROOF -------- 
% 0.20/0.43  % SZS status Unsatisfiable
% 0.20/0.43  % SZS output start Refutation
% 0.20/0.43  ----- Otter 3.2, August 2001 -----
% 0.20/0.43  The process was started by sandbox on n012.cluster.edu,
% 0.20/0.43  Sun Jun 12 05:05:41 2022
% 0.20/0.43  The command was "./sos".  The process ID is 17746.
% 0.20/0.43  
% 0.20/0.43  set(prolog_style_variables).
% 0.20/0.43  set(auto).
% 0.20/0.43     dependent: set(auto1).
% 0.20/0.43     dependent: set(process_input).
% 0.20/0.43     dependent: clear(print_kept).
% 0.20/0.43     dependent: clear(print_new_demod).
% 0.20/0.43     dependent: clear(print_back_demod).
% 0.20/0.43     dependent: clear(print_back_sub).
% 0.20/0.43     dependent: set(control_memory).
% 0.20/0.43     dependent: assign(max_mem, 12000).
% 0.20/0.43     dependent: assign(pick_given_ratio, 4).
% 0.20/0.43     dependent: assign(stats_level, 1).
% 0.20/0.43     dependent: assign(pick_semantic_ratio, 3).
% 0.20/0.43     dependent: assign(sos_limit, 5000).
% 0.20/0.43     dependent: assign(max_weight, 60).
% 0.20/0.43  clear(print_given).
% 0.20/0.43  
% 0.20/0.43  list(usable).
% 0.20/0.43  
% 0.20/0.43  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=10.
% 0.20/0.43  
% 0.20/0.43  This ia a non-Horn set with equality.  The strategy will be
% 0.20/0.43  Knuth-Bendix, ordered hyper_res, ur_res, factoring, and
% 0.20/0.43  unit deletion, with positive clauses in sos and nonpositive
% 0.20/0.43  clauses in usable.
% 0.20/0.43  
% 0.20/0.43     dependent: set(knuth_bendix).
% 0.20/0.43     dependent: set(para_from).
% 0.20/0.43     dependent: set(para_into).
% 0.20/0.43     dependent: clear(para_from_right).
% 0.20/0.43     dependent: clear(para_into_right).
% 0.20/0.43     dependent: set(para_from_vars).
% 0.20/0.43     dependent: set(eq_units_both_ways).
% 0.20/0.43     dependent: set(dynamic_demod_all).
% 0.20/0.43     dependent: set(dynamic_demod).
% 0.20/0.43     dependent: set(order_eq).
% 0.20/0.43     dependent: set(back_demod).
% 0.20/0.43     dependent: set(lrpo).
% 0.20/0.43     dependent: set(hyper_res).
% 0.20/0.43     dependent: set(unit_deletion).
% 0.20/0.43     dependent: set(factor).
% 0.20/0.43  
% 0.20/0.43  ------------> process usable:
% 0.20/0.43    Following clause subsumed by 23 during input processing: 0 [] {-} -ssList(A)|ssList(tl(A))|nil=A.
% 0.20/0.43    Following clause subsumed by 24 during input processing: 0 [] {-} -ssList(A)|ssItem(hd(A))|nil=A.
% 0.20/0.43    Following clause subsumed by 67 during input processing: 0 [] {-} -leq(A,B)| -ssItem(B)| -ssItem(A)|lt(A,B)|A=B.
% 0.20/0.43  136 back subsumes 135.
% 0.20/0.43  146 back subsumes 140.
% 0.20/0.43  
% 0.20/0.43  ------------> process sos:
% 0.20/0.43  
% 0.20/0.43  ----> UNIT CONFLICT at   0.07 sec ----> 443 [binary,442.1,437.1] {-} $F.
% 0.20/0.43  
% 0.20/0.43  Length of proof is 6.  Level of proof is 3.
% 0.20/0.43  
% 0.20/0.43  ---------------- PROOF ----------------
% 0.20/0.43  % SZS status Unsatisfiable
% 0.20/0.43  % SZS output start Refutation
% 0.20/0.43  
% 0.20/0.43  131 [] {-} -neq(sk1,nil).
% 0.20/0.43  419 [] {-} sk2=sk4.
% 0.20/0.43  421,420 [copy,419,flip.1] {-} sk4=sk2.
% 0.20/0.43  422 [] {-} sk1=sk3.
% 0.20/0.43  424,423 [copy,422,flip.1] {-} sk3=sk1.
% 0.20/0.43  425 [] {-} neq(sk2,nil).
% 0.20/0.43  426 [] {-} nil=sk4|neq(sk3,nil).
% 0.20/0.43  428,427 [copy,426,demod,421,424,unit_del,131,flip.1] {-} sk2=nil.
% 0.20/0.43  431 [] {-} nil=sk3|neq(sk3,nil).
% 0.20/0.43  433,432 [copy,431,demod,424,424,unit_del,131,flip.1] {-} sk1=nil.
% 0.20/0.43  437 [back_demod,425,demod,428] {-} neq(nil,nil).
% 0.20/0.43  442 [back_demod,131,demod,433] {-} -neq(nil,nil).
% 0.20/0.43  443 [binary,442.1,437.1] {-} $F.
% 0.20/0.43  
% 0.20/0.43  % SZS output end Refutation
% 0.20/0.43  ------------ end of proof -------------
% 0.20/0.43  
% 0.20/0.43  
% 0.20/0.43  Search stopped by max_proofs option.
% 0.20/0.43  
% 0.20/0.43  
% 0.20/0.43  Search stopped by max_proofs option.
% 0.20/0.43  
% 0.20/0.43  ============ end of search ============
% 0.20/0.43  
% 0.20/0.43  That finishes the proof of the theorem.
% 0.20/0.43  
% 0.20/0.43  Process 17746 finished Sun Jun 12 05:05:41 2022
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