%------------------------------------------------------------------------------
% File : SOS---2.0
% Problem : SYN397+1 : TPTP v8.1.0. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : sos-script %s
% Computer : n021.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 : Thu Jul 21 12:12:31 EDT 2022
% Result : Theorem 0.14s 0.38s
% Output : Refutation 0.14s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.13/0.13 % Problem : SYN397+1 : TPTP v8.1.0. Released v2.0.0.
% 0.13/0.14 % Command : sos-script %s
% 0.14/0.36 % Computer : n021.cluster.edu
% 0.14/0.36 % Model : x86_64 x86_64
% 0.14/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36 % Memory : 8042.1875MB
% 0.14/0.36 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36 % CPULimit : 300
% 0.14/0.36 % WCLimit : 600
% 0.14/0.36 % DateTime : Tue Jul 12 03:02:23 EDT 2022
% 0.14/0.36 % CPUTime :
% 0.14/0.38
% 0.14/0.38 -------- PROOF --------
% 0.14/0.38 % SZS status Unsatisfiable
% 0.14/0.38 % SZS output start Refutation
% 0.14/0.38 ----- Otter 3.2, August 2001 -----
% 0.14/0.38 The process was started by sandbox on n021.cluster.edu,
% 0.14/0.38 Tue Jul 12 03:02:24 2022
% 0.14/0.38 The command was "./sos". The process ID is 28427.
% 0.14/0.38
% 0.14/0.38 set(prolog_style_variables).
% 0.14/0.38 set(auto).
% 0.14/0.38 dependent: set(auto1).
% 0.14/0.38 dependent: set(process_input).
% 0.14/0.38 dependent: clear(print_kept).
% 0.14/0.38 dependent: clear(print_new_demod).
% 0.14/0.38 dependent: clear(print_back_demod).
% 0.14/0.38 dependent: clear(print_back_sub).
% 0.14/0.38 dependent: set(control_memory).
% 0.14/0.38 dependent: assign(max_mem, 12000).
% 0.14/0.38 dependent: assign(pick_given_ratio, 4).
% 0.14/0.38 dependent: assign(stats_level, 1).
% 0.14/0.38 dependent: assign(pick_semantic_ratio, 3).
% 0.14/0.38 dependent: assign(sos_limit, 5000).
% 0.14/0.38 dependent: assign(max_weight, 60).
% 0.14/0.38 clear(print_given).
% 0.14/0.38
% 0.14/0.38 formula_list(usable).
% 0.14/0.38
% 0.14/0.38 SCAN INPUT: prop=0, horn=0, equality=0, symmetry=0, max_lits=2.
% 0.14/0.38
% 0.14/0.38 This is a non-Horn set without equality. The strategy
% 0.14/0.38 will be ordered hyper_res, ur_res, unit deletion, and
% 0.14/0.38 factoring, with satellites in sos and nuclei in usable.
% 0.14/0.38
% 0.14/0.38 dependent: set(hyper_res).
% 0.14/0.38 dependent: set(factor).
% 0.14/0.38 dependent: set(unit_deletion).
% 0.14/0.38
% 0.14/0.38 ------------> process usable:
% 0.14/0.38
% 0.14/0.38 ------------> process sos:
% 0.14/0.38
% 0.14/0.38 -----> EMPTY CLAUSE at 0.00 sec ----> 4 [copy,3,unit_del,2,2] {-} $F.
% 0.14/0.38
% 0.14/0.38 Length of proof is 1. Level of proof is 1.
% 0.14/0.38
% 0.14/0.38 ---------------- PROOF ----------------
% 0.14/0.38 % SZS status Theorem
% 0.14/0.38 % SZS output start Refutation
% 0.14/0.38
% 0.14/0.38 1 [] {-} -f(A)| -f(B).
% 0.14/0.38 2 [copy,1,factor_simp] {-} -f(A).
% 0.14/0.38 3 [] {-} f($c1)|f($c2).
% 0.14/0.38 4 [copy,3,unit_del,2,2] {-} $F.
% 0.14/0.38
% 0.14/0.38 % SZS output end Refutation
% 0.14/0.38 ------------ end of proof -------------
% 0.14/0.38
% 0.14/0.38
% 0.14/0.38 Search stopped by max_proofs option.
% 0.14/0.38
% 0.14/0.38
% 0.14/0.38 Search stopped by max_proofs option.
% 0.14/0.38
% 0.14/0.38 ============ end of search ============
% 0.14/0.38
% 0.14/0.38 That finishes the proof of the theorem.
% 0.14/0.38
% 0.14/0.38 Process 28427 finished Tue Jul 12 03:02:24 2022
%------------------------------------------------------------------------------