TSTP Solution File: SWC375-1 by SOS---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SOS---2.0
% Problem  : SWC375-1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : sos-script %s

% Computer : n032.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 22:00:43 EDT 2022

% Result   : Unsatisfiable 0.12s 0.33s
% Output   : Refutation 0.12s
% Verified : 
% SZS Type : -

% Comments : 
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%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.08  % Problem  : SWC375-1 : TPTP v8.1.0. Released v2.4.0.
% 0.04/0.08  % Command  : sos-script %s
% 0.07/0.27  % Computer : n032.cluster.edu
% 0.07/0.27  % Model    : x86_64 x86_64
% 0.07/0.27  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.27  % Memory   : 8042.1875MB
% 0.07/0.27  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.07/0.27  % CPULimit : 300
% 0.07/0.27  % WCLimit  : 600
% 0.07/0.27  % DateTime : Sun Jun 12 17:07:56 EDT 2022
% 0.07/0.27  % CPUTime  : 
% 0.12/0.33  
% 0.12/0.33  -------- PROOF -------- 
% 0.12/0.33  % SZS status Unsatisfiable
% 0.12/0.33  % SZS output start Refutation
% 0.12/0.33  ----- Otter 3.2, August 2001 -----
% 0.12/0.33  The process was started by sandbox2 on n032.cluster.edu,
% 0.12/0.33  Sun Jun 12 17:07:56 2022
% 0.12/0.33  The command was "./sos".  The process ID is 15537.
% 0.12/0.33  
% 0.12/0.33  set(prolog_style_variables).
% 0.12/0.33  set(auto).
% 0.12/0.33     dependent: set(auto1).
% 0.12/0.33     dependent: set(process_input).
% 0.12/0.33     dependent: clear(print_kept).
% 0.12/0.33     dependent: clear(print_new_demod).
% 0.12/0.33     dependent: clear(print_back_demod).
% 0.12/0.33     dependent: clear(print_back_sub).
% 0.12/0.33     dependent: set(control_memory).
% 0.12/0.33     dependent: assign(max_mem, 12000).
% 0.12/0.33     dependent: assign(pick_given_ratio, 4).
% 0.12/0.33     dependent: assign(stats_level, 1).
% 0.12/0.33     dependent: assign(pick_semantic_ratio, 3).
% 0.12/0.33     dependent: assign(sos_limit, 5000).
% 0.12/0.33     dependent: assign(max_weight, 60).
% 0.12/0.33  clear(print_given).
% 0.12/0.33  
% 0.12/0.33  list(usable).
% 0.12/0.33  
% 0.12/0.33  SCAN INPUT: prop=0, horn=0, equality=1, symmetry=0, max_lits=10.
% 0.12/0.33  
% 0.12/0.33  This ia a non-Horn set with equality.  The strategy will be
% 0.12/0.33  Knuth-Bendix, ordered hyper_res, ur_res, factoring, and
% 0.12/0.33  unit deletion, with positive clauses in sos and nonpositive
% 0.12/0.33  clauses in usable.
% 0.12/0.33  
% 0.12/0.33     dependent: set(knuth_bendix).
% 0.12/0.33     dependent: set(para_from).
% 0.12/0.33     dependent: set(para_into).
% 0.12/0.33     dependent: clear(para_from_right).
% 0.12/0.33     dependent: clear(para_into_right).
% 0.12/0.33     dependent: set(para_from_vars).
% 0.12/0.33     dependent: set(eq_units_both_ways).
% 0.12/0.33     dependent: set(dynamic_demod_all).
% 0.12/0.33     dependent: set(dynamic_demod).
% 0.12/0.33     dependent: set(order_eq).
% 0.12/0.33     dependent: set(back_demod).
% 0.12/0.33     dependent: set(lrpo).
% 0.12/0.33     dependent: set(hyper_res).
% 0.12/0.33     dependent: set(unit_deletion).
% 0.12/0.33     dependent: set(factor).
% 0.12/0.33  
% 0.12/0.33  ------------> process usable:
% 0.12/0.33    Following clause subsumed by 23 during input processing: 0 [] {-} -ssList(A)|ssList(tl(A))|nil=A.
% 0.12/0.33    Following clause subsumed by 24 during input processing: 0 [] {-} -ssList(A)|ssItem(hd(A))|nil=A.
% 0.12/0.33    Following clause subsumed by 67 during input processing: 0 [] {-} -leq(A,B)| -ssItem(B)| -ssItem(A)|lt(A,B)|A=B.
% 0.12/0.33  136 back subsumes 135.
% 0.12/0.33  146 back subsumes 140.
% 0.12/0.33  
% 0.12/0.33  ------------> process sos:
% 0.12/0.33  
% 0.12/0.33  -----> EMPTY CLAUSE at   0.05 sec ----> 434 [back_demod,131,demod,427,unit_del,430,430] {-} $F.
% 0.12/0.33  
% 0.12/0.33  Length of proof is 4.  Level of proof is 3.
% 0.12/0.33  
% 0.12/0.33  ---------------- PROOF ----------------
% 0.12/0.33  % SZS status Unsatisfiable
% 0.12/0.33  % SZS output start Refutation
% 0.12/0.33  
% 0.12/0.33  131 [] {-} -memberP(sk2,sk5)| -memberP(sk1,sk5).
% 0.12/0.33  419 [] {-} sk2=sk4.
% 0.12/0.33  421,420 [copy,419,flip.1] {-} sk4=sk2.
% 0.12/0.33  422 [] {-} sk1=sk3.
% 0.12/0.33  424,423 [copy,422,flip.1] {-} sk3=sk1.
% 0.12/0.33  425 [] {-} sk4=sk3.
% 0.12/0.33  427,426 [copy,425,demod,421,424] {-} sk2=sk1.
% 0.12/0.33  429 [] {-} memberP(sk2,sk5)|memberP(sk1,sk5).
% 0.12/0.33  430 [copy,429,demod,427,factor_simp] {-} memberP(sk1,sk5).
% 0.12/0.33  434 [back_demod,131,demod,427,unit_del,430,430] {-} $F.
% 0.12/0.33  
% 0.12/0.33  % SZS output end Refutation
% 0.12/0.33  ------------ end of proof -------------
% 0.12/0.33  
% 0.12/0.33  
% 0.12/0.33  Search stopped by max_proofs option.
% 0.12/0.33  
% 0.12/0.33  
% 0.12/0.33  Search stopped by max_proofs option.
% 0.12/0.33  
% 0.12/0.33  ============ end of search ============
% 0.12/0.33  
% 0.12/0.33  That finishes the proof of the theorem.
% 0.12/0.33  
% 0.12/0.33  Process 15537 finished Sun Jun 12 17:07:56 2022
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