TSTP Solution File: NUM002-1 by SOS---2.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SOS---2.0
% Problem  : NUM002-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : sos-script %s

% Computer : n008.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 : Mon Jul 18 14:15:42 EDT 2022

% Result   : Unsatisfiable 1.46s 1.64s
% Output   : Refutation 1.46s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.11  % Problem  : NUM002-1 : TPTP v8.1.0. Released v1.0.0.
% 0.10/0.12  % Command  : sos-script %s
% 0.13/0.33  % Computer : n008.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % WCLimit  : 600
% 0.13/0.33  % DateTime : Wed Jul  6 09:21:53 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.13/0.35  ----- Otter 3.2, August 2001 -----
% 0.13/0.35  The process was started by sandbox on n008.cluster.edu,
% 0.13/0.35  Wed Jul  6 09:21:53 2022
% 0.13/0.35  The command was "./sos".  The process ID is 17153.
% 0.13/0.35  
% 0.13/0.35  set(prolog_style_variables).
% 0.13/0.35  set(auto).
% 0.13/0.35     dependent: set(auto1).
% 0.13/0.35     dependent: set(process_input).
% 0.13/0.35     dependent: clear(print_kept).
% 0.13/0.35     dependent: clear(print_new_demod).
% 0.13/0.35     dependent: clear(print_back_demod).
% 0.13/0.35     dependent: clear(print_back_sub).
% 0.13/0.35     dependent: set(control_memory).
% 0.13/0.35     dependent: assign(max_mem, 12000).
% 0.13/0.35     dependent: assign(pick_given_ratio, 4).
% 0.13/0.35     dependent: assign(stats_level, 1).
% 0.13/0.35     dependent: assign(pick_semantic_ratio, 3).
% 0.13/0.35     dependent: assign(sos_limit, 5000).
% 0.13/0.35     dependent: assign(max_weight, 60).
% 0.13/0.35  clear(print_given).
% 0.13/0.35  
% 0.13/0.35  list(usable).
% 0.13/0.35  
% 0.13/0.35  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=3.
% 0.13/0.35  
% 0.13/0.35  This is a Horn set with equality.  The strategy will be
% 0.13/0.35  Knuth-Bendix and hyper_res, with positive clauses in
% 0.13/0.35  sos and nonpositive clauses in usable.
% 0.13/0.35  
% 0.13/0.35     dependent: set(knuth_bendix).
% 0.13/0.35     dependent: set(para_from).
% 0.13/0.35     dependent: set(para_into).
% 0.13/0.35     dependent: clear(para_from_right).
% 0.13/0.35     dependent: clear(para_into_right).
% 0.13/0.35     dependent: set(para_from_vars).
% 0.13/0.35     dependent: set(eq_units_both_ways).
% 0.13/0.35     dependent: set(dynamic_demod_all).
% 0.13/0.35     dependent: set(dynamic_demod).
% 0.13/0.35     dependent: set(order_eq).
% 0.13/0.35     dependent: set(back_demod).
% 0.13/0.35     dependent: set(lrpo).
% 0.13/0.35     dependent: set(hyper_res).
% 0.13/0.35     dependent: clear(order_hyper).
% 0.13/0.35  
% 0.13/0.35  ------------> process usable:
% 0.13/0.35  
% 0.13/0.35  ------------> process sos:
% 0.13/0.35    Following clause subsumed by 8 during input processing: 0 [demod,14] {-} equalish(A,A).
% 0.13/0.35    Following clause subsumed by 8 during input processing: 0 [demod,17] {-} equalish(add(subtract(A,C),B),add(subtract(A,C),B)).
% 0.13/0.35    Following clause subsumed by 8 during input processing: 0 [copy,8,flip.1] {-} equalish(A,A).
% 0.13/0.35    Following clause subsumed by 9 during input processing: 0 [copy,9,flip.1] {-} equalish(add(A,B),add(B,A)).
% 0.13/0.35  
% 0.13/0.35  ======= end of input processing =======
% 0.13/0.37  
% 0.13/0.37  Model 1 (0.00 seconds, 0 Inserts)
% 0.13/0.37  
% 0.13/0.37  Stopped by limit on number of solutions
% 0.13/0.37  
% 0.13/0.37  
% 0.13/0.37  -------------- Softie stats --------------
% 0.13/0.37  
% 0.13/0.37  UPDATE_STOP: 300
% 0.13/0.37  SFINDER_TIME_LIMIT: 2
% 0.13/0.37  SHORT_CLAUSE_CUTOFF: 4
% 0.13/0.37  number of clauses in intial UL: 6
% 0.13/0.37  number of clauses initially in problem: 14
% 0.13/0.37  percentage of clauses intially in UL: 42
% 0.13/0.37  percentage of distinct symbols occuring in initial UL: 100
% 0.13/0.37  percent of all initial clauses that are short: 100
% 0.13/0.37  absolute distinct symbol count: 6
% 0.13/0.37     distinct predicate count: 1
% 0.13/0.37     distinct function count: 2
% 0.13/0.37     distinct constant count: 3
% 0.13/0.37  
% 0.13/0.37  ---------- no more Softie stats ----------
% 0.13/0.37  
% 0.13/0.37  
% 0.13/0.37  
% 0.13/0.37  =========== start of search ===========
% 1.46/1.64  
% 1.46/1.64  -------- PROOF -------- 
% 1.46/1.64  % SZS status Unsatisfiable
% 1.46/1.64  % SZS output start Refutation
% 1.46/1.64  
% 1.46/1.64  Model 2 (0.00 seconds, 0 Inserts)
% 1.46/1.64  
% 1.46/1.64  Stopped by limit on number of solutions
% 1.46/1.64  
% 1.46/1.64  ----> UNIT CONFLICT at   1.27 sec ----> 31 [binary,30.1,21.1] {-} $F.
% 1.46/1.64  
% 1.46/1.64  Length of proof is 4.  Level of proof is 2.
% 1.46/1.64  
% 1.46/1.64  ---------------- PROOF ----------------
% 1.46/1.64  % SZS status Unsatisfiable
% 1.46/1.64  % SZS output start Refutation
% 1.46/1.64  
% 1.46/1.64  4 [] {+} -equalish(A,B)| -equalish(C,subtract(A,D))|equalish(C,subtract(B,D)).
% 1.46/1.64  6 [] {-} -equalish(add(subtract(a,b),c),add(a,subtract(c,b))).
% 1.46/1.64  7 [copy,6,flip.1] {+} -equalish(add(a,subtract(c,b)),add(subtract(a,b),c)).
% 1.46/1.64  8 [] {+} equalish(A,A).
% 1.46/1.64  9 [] {+} equalish(add(A,B),add(B,A)).
% 1.46/1.64  15 [] {-} equalish(add(subtract(A,B),C),subtract(add(A,C),B)).
% 1.46/1.64  17,16 [copy,15,flip.1] {-} equalish(subtract(add(A,B),C),add(subtract(A,C),B)).
% 1.46/1.64  21 [hyper,9,4,8,demod,17,17] {-} equalish(add(subtract(A,B),C),add(subtract(C,B),A)).
% 1.46/1.64  30 [para_from,9.1.1,7.1.1] {-} -equalish(add(subtract(c,b),a),add(subtract(a,b),c)).
% 1.46/1.64  31 [binary,30.1,21.1] {-} $F.
% 1.46/1.64  
% 1.46/1.64  % SZS output end Refutation
% 1.46/1.64  ------------ end of proof -------------
% 1.46/1.64  
% 1.46/1.64  
% 1.46/1.64  Search stopped by max_proofs option.
% 1.46/1.64  
% 1.46/1.64  
% 1.46/1.64  Search stopped by max_proofs option.
% 1.46/1.64  
% 1.46/1.64  ============ end of search ============
% 1.46/1.64  
% 1.46/1.64  ----------- soft-scott stats ----------
% 1.46/1.64  
% 1.46/1.64  true clauses given           1      (50.0%)
% 1.46/1.64  false clauses given          1
% 1.46/1.64  
% 1.46/1.64        FALSE     TRUE
% 1.46/1.64     7  1         0
% 1.46/1.64    11  2         0
% 1.46/1.64  tot:  3         0      (0.0% true)
% 1.46/1.64  
% 1.46/1.64  
% 1.46/1.64  Model 2 (0.00 seconds, 0 Inserts)
% 1.46/1.64  
% 1.46/1.64  That finishes the proof of the theorem.
% 1.46/1.64  
% 1.46/1.64  Process 17153 finished Wed Jul  6 09:21:54 2022
%------------------------------------------------------------------------------