%------------------------------------------------------------------------------
% File     : SOS---2.0
% Problem  : LCL644+1.020 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : sos-script %s

% Computer : n005.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 : Sun Jul 17 14:31:21 EDT 2022

% Result   : Theorem 3.03s 3.22s
% Output   : Refutation 3.03s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : LCL644+1.020 : TPTP v8.1.0. Released v4.0.0.
% 0.04/0.12  % Command  : sos-script %s
% 0.12/0.33  % Computer : n005.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 : Sun Jul  3 04:47:22 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 3.03/3.22  
% 3.03/3.22  -------- PROOF -------- 
% 3.03/3.22  % SZS status Unsatisfiable
% 3.03/3.22  % SZS output start Refutation
% 3.03/3.22  ----- Otter 3.2, August 2001 -----
% 3.03/3.22  The process was started by sandbox on n005.cluster.edu,
% 3.03/3.22  Sun Jul  3 04:47:22 2022
% 3.03/3.22  The command was "./sos".  The process ID is 18168.
% 3.03/3.22  
% 3.03/3.22  set(prolog_style_variables).
% 3.03/3.22  set(auto).
% 3.03/3.22     dependent: set(auto1).
% 3.03/3.22     dependent: set(process_input).
% 3.03/3.22     dependent: clear(print_kept).
% 3.03/3.22     dependent: clear(print_new_demod).
% 3.03/3.22     dependent: clear(print_back_demod).
% 3.03/3.22     dependent: clear(print_back_sub).
% 3.03/3.22     dependent: set(control_memory).
% 3.03/3.22     dependent: assign(max_mem, 12000).
% 3.03/3.22     dependent: assign(pick_given_ratio, 4).
% 3.03/3.22     dependent: assign(stats_level, 1).
% 3.03/3.22     dependent: assign(pick_semantic_ratio, 3).
% 3.03/3.22     dependent: assign(sos_limit, 5000).
% 3.03/3.22     dependent: assign(max_weight, 60).
% 3.03/3.22  clear(print_given).
% 3.03/3.22  
% 3.03/3.22  formula_list(usable).
% 3.03/3.22  
% 3.03/3.22  SCAN INPUT: prop=1, horn=1, equality=0, symmetry=0, max_lits=0.
% 3.03/3.22  
% 3.03/3.22  The clause set is propositional; the strategy will be
% 3.03/3.22  ordered hyperresolution with the propositional
% 3.03/3.22  optimizations, with satellites in sos and nuclei in usable.
% 3.03/3.22  
% 3.03/3.22     dependent: set(hyper_res).
% 3.03/3.22     dependent: set(propositional).
% 3.03/3.22     dependent: set(sort_literals).
% 3.03/3.22  
% 3.03/3.22  ------------> process usable:
% 3.03/3.22  
% 3.03/3.22  ------------> process sos:
% 3.03/3.22  
% 3.03/3.22  -----> EMPTY CLAUSE at   2.85 sec ----> 1 [] {-} $F.
% 3.03/3.22  
% 3.03/3.22  Length of proof is -1.  Level of proof is -1.
% 3.03/3.22  
% 3.03/3.22  ---------------- PROOF ----------------
% 3.03/3.22  % SZS status Theorem
% 3.03/3.22  % SZS output start Refutation
% 3.03/3.22  
% 3.03/3.22  1 [] {-} $F.
% 3.03/3.22  
% 3.03/3.22  % SZS output end Refutation
% 3.03/3.22  ------------ end of proof -------------
% 3.03/3.22  
% 3.03/3.22  
% 3.03/3.22  Search stopped by max_proofs option.
% 3.03/3.22  
% 3.03/3.22  
% 3.03/3.22  Search stopped by max_proofs option.
% 3.03/3.22  
% 3.03/3.22  ============ end of search ============
% 3.03/3.22  
% 3.03/3.22  That finishes the proof of the theorem.
% 3.03/3.22  
% 3.03/3.22  Process 18168 finished Sun Jul  3 04:47:25 2022
%------------------------------------------------------------------------------