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iProver---3.9.4.UNS-CRf.s

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%------------------------------------------------------------------------------
% File     : iProver---3.9.4
% Problem  : REL005-3 : TPTP v9.3.1. Released v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM

% Computer : n007.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Fri Sep 25 02:36:32 PM UTC 2026

% Result   : Unsatisfiable 4.96s 18.35s
% Output   : CNFRefutation 4.96s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   41
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   99 (  99 unt;   0 def)
%            Number of atoms       :  143 (  98 equ)
%            Maximal formula atoms :    1 (   1 avg)
%            Number of connectives :    6 (   6   ~;   0   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    4 (   2 avg)
%            Maximal term depth    :    8 (   2 avg)
%            Number of types       :    1 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   2 usr;   2 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   4 con; 0-2 aty)
%            Number of variables   :  133 (   0 sgn 133   !;   0   ?; 109   :)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [X0,X1] : join(X0,X1) = join(X1,X0),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',maddux1_join_commutativity_1) ).

fof(f2,axiom,
    ! [X2,X0,X1] : join(X0,join(X1,X2)) = join(join(X0,X1),X2),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',maddux2_join_associativity_2) ).

fof(f3,axiom,
    ! [X0,X1] : X0 = join(complement(join(complement(X0),complement(X1))),complement(join(complement(X0),X1))),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',maddux3_a_kind_of_de_Morgan_3) ).

fof(f4,plain,
    ! [X0,X1] : join(complement(join(complement(X0),complement(X1))),complement(join(complement(X0),X1))) = X0,
    inference(reorient_equations,[],[f3]) ).

fof(f5,axiom,
    ! [X0,X1] : meet(X0,X1) = complement(join(complement(X0),complement(X1))),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',maddux4_definiton_of_meet_4) ).

fof(f6,plain,
    ! [X0,X1] : complement(join(complement(X0),complement(X1))) = meet(X0,X1),
    inference(reorient_equations,[],[f5]) ).

fof(f8,axiom,
    ! [X0] : composition(X0,one) = X0,
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',composition_identity_6) ).

fof(f10,axiom,
    ! [X0] : converse(converse(X0)) = X0,
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',converse_idempotence_8) ).

fof(f11,axiom,
    ! [X0,X1] : converse(join(X0,X1)) = join(converse(X0),converse(X1)),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',converse_additivity_9) ).

fof(f12,axiom,
    ! [X0,X1] : converse(composition(X0,X1)) = composition(converse(X1),converse(X0)),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',converse_multiplicativity_10) ).

fof(f13,axiom,
    ! [X0,X1] : join(composition(converse(X0),complement(composition(X0,X1))),complement(X1)) = complement(X1),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',converse_cancellativity_11) ).

fof(f14,plain,
    ! [X0,X1] : complement(X1) = join(composition(converse(X0),complement(composition(X0,X1))),complement(X1)),
    inference(reorient_equations,[],[f13]) ).

fof(f15,axiom,
    ! [X0] : top = join(X0,complement(X0)),
    file('/export/starexec/sandbox2/benchmark/Axioms/REL001-0.ax',def_top_12) ).

fof(f23,negated_conjecture,
    converse(meet(sk1,sk2)) != meet(converse(sk1),converse(sk2)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',goals_17) ).

fof(f28,plain,
    converse(complement(join(complement(sk1),complement(sk2)))) != complement(join(complement(converse(sk1)),complement(converse(sk2)))),
    inference(definition_unfolding,[],[f23,f6,f6]) ).

tcf(c_66,plain,
    ! [X0: $i,X1: $i] : join(X0,X1) = join(X1,X0),
    inference(cnf_transformation,[],[f1]) ).

tcf(c_67,plain,
    ! [X0: $i,X1: $i,X2: $i] : join(join(X0,X1),X2) = join(X0,join(X1,X2)),
    inference(cnf_transformation,[],[f2]) ).

tcf(c_68,plain,
    ! [X0: $i,X1: $i] : join(complement(join(complement(X0),complement(X1))),complement(join(complement(X0),X1))) = X0,
    inference(cnf_transformation,[],[f4]) ).

tcf(c_70,plain,
    ! [X0: $i] : composition(X0,one) = X0,
    inference(cnf_transformation,[],[f8]) ).

tcf(c_72,plain,
    ! [X0: $i] : converse(converse(X0)) = X0,
    inference(cnf_transformation,[],[f10]) ).

tcf(c_73,plain,
    ! [X0: $i,X1: $i] : join(converse(X0),converse(X1)) = converse(join(X0,X1)),
    inference(cnf_transformation,[],[f11]) ).

tcf(c_74,plain,
    ! [X0: $i,X1: $i] : composition(converse(X0),converse(X1)) = converse(composition(X1,X0)),
    inference(cnf_transformation,[],[f12]) ).

tcf(c_75,plain,
    ! [X0: $i,X1: $i] : join(composition(converse(X0),complement(composition(X0,X1))),complement(X1)) = complement(X1),
    inference(cnf_transformation,[],[f14]) ).

tcf(c_76,plain,
    ! [X0: $i] : join(X0,complement(X0)) = top,
    inference(cnf_transformation,[],[f15]) ).

tcf(c_81,negated_conjecture,
    complement(join(complement(converse(sk1)),complement(converse(sk2)))) != converse(complement(join(complement(sk1),complement(sk2)))),
    inference(cnf_transformation,[],[f28]) ).

tcf(c_97,plain,
    ! [X0: $i,X1: $i] : join(complement(join(complement(X0),X1)),complement(join(complement(X0),complement(X1)))) = X0,
    inference(theory_normalisation,[status(thm)],[c_68,c_67,c_66]) ).

tcf(c_98,plain,
    ! [X0: $i,X1: $i] : join(complement(X0),composition(converse(X1),complement(composition(X1,X0)))) = complement(X0),
    inference(theory_normalisation,[status(thm)],[c_75,c_67,c_66]) ).

tcf(c_216,plain,
    ! [X0: $i,X1: $i] : join(X0,complement(X0)) = join(X1,complement(X1)),
    inference(superposition,[status(thm)],[c_76,c_76]) ).

tcf(c_218,plain,
    ! [X0: $i] : join(X0,complement(X0)) = iPr_def_10,
    inference(splitting,[splitting(split),new_symbols(definition,[iPr_def_10])],[c_216]) ).

tcf(c_1661,plain,
    ! [X0: $i] : composition(converse(one),converse(X0)) = converse(X0),
    inference(superposition,[status(thm)],[c_70,c_74]) ).

tcf(c_1665,plain,
    ! [X0: $i] : composition(converse(one),X0) = X0,
    inference(superposition,[status(thm)],[c_72,c_1661]) ).

tcf(c_1669,plain,
    converse(one) = one,
    inference(superposition,[status(thm)],[c_70,c_1665]) ).

tcf(c_1672,plain,
    ! [X0: $i] : composition(one,X0) = X0,
    inference(demodulation,[status(thm)],[c_1665,c_1669]) ).

tcf(c_2996,plain,
    ! [X0: $i,X1: $i] : join(X0,join(complement(X0),X1)) = join(iPr_def_10,X1),
    inference(superposition,[status(thm)],[c_218,c_67]) ).

tcf(c_3002,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,complement(join(X0,X1)))) = iPr_def_10,
    inference(superposition,[status(thm)],[c_67,c_218]) ).

tcf(c_3044,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,complement(X0))) = join(iPr_def_10,X1),
    inference(superposition,[status(thm)],[c_66,c_2996]) ).

tcf(c_3398,plain,
    ! [X0: $i,X1: $i,X2: $i] : join(X0,join(X1,complement(X0))) = join(X2,join(X1,complement(X2))),
    inference(superposition,[status(thm)],[c_3044,c_3044]) ).

tcf(c_3403,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,complement(X0))) = iPr_def_11(X1),
    inference(splitting,[splitting(split),new_symbols(definition,[iPr_def_11])],[c_3398]) ).

tcf(c_3413,plain,
    ! [X0: $i] : join(iPr_def_10,X0) = iPr_def_11(X0),
    inference(demodulation,[status(thm)],[c_3044,c_3403]) ).

tcf(c_3492,plain,
    ! [X0: $i] : join(X0,iPr_def_10) = iPr_def_11(X0),
    inference(superposition,[status(thm)],[c_3413,c_66]) ).

tcf(c_3546,plain,
    ! [X0: $i] : join(X0,join(iPr_def_10,complement(iPr_def_11(X0)))) = iPr_def_10,
    inference(superposition,[status(thm)],[c_3492,c_3002]) ).

tcf(c_3558,plain,
    ! [X0: $i] : join(X0,iPr_def_11(complement(iPr_def_11(X0)))) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_3546,c_3413]) ).

tcf(c_5448,plain,
    ! [X0: $i] : join(complement(X0),composition(converse(one),complement(X0))) = complement(X0),
    inference(superposition,[status(thm)],[c_1672,c_98]) ).

tcf(c_5455,plain,
    ! [X0: $i] : join(complement(X0),complement(X0)) = complement(X0),
    inference(demodulation,[status(thm)],[c_5448,c_1669,c_1672]) ).

tcf(c_6247,plain,
    ! [X0: $i] : join(X0,complement(X0)) = iPr_def_11(complement(X0)),
    inference(superposition,[status(thm)],[c_5455,c_3403]) ).

tcf(c_6250,plain,
    ! [X0: $i] : iPr_def_11(complement(X0)) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_6247,c_218]) ).

tcf(c_6263,plain,
    ! [X0: $i] : join(X0,iPr_def_10) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_3558,c_6250]) ).

tcf(c_6271,plain,
    ! [X0: $i] : iPr_def_11(X0) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_3492,c_6263]) ).

tcf(c_30772,plain,
    ! [X0: $i,X1: $i,X2: $i] : join(X0,join(X1,X2)) = join(X1,join(X0,X2)),
    inference(superposition,[status(thm)],[c_67,c_66]) ).

tcf(c_30791,plain,
    ! [X0: $i] : join(converse(X0),converse(complement(X0))) = converse(iPr_def_10),
    inference(superposition,[status(thm)],[c_218,c_73]) ).

tcf(c_30792,plain,
    ! [X0: $i,X1: $i] : converse(join(converse(X0),converse(X1))) = join(X0,X1),
    inference(superposition,[status(thm)],[c_73,c_72]) ).

tcf(c_30793,plain,
    ! [X0: $i] : join(X0,converse(complement(converse(X0)))) = converse(iPr_def_10),
    inference(superposition,[status(thm)],[c_72,c_30791]) ).

tcf(c_30801,plain,
    ! [X0: $i] : composition(converse(one),converse(X0)) = converse(X0),
    inference(superposition,[status(thm)],[c_70,c_74]) ).

tcf(c_30805,plain,
    ! [X0: $i] : composition(converse(one),X0) = X0,
    inference(superposition,[status(thm)],[c_72,c_30801]) ).

tcf(c_30809,plain,
    converse(one) = one,
    inference(superposition,[status(thm)],[c_70,c_30805]) ).

tcf(c_30812,plain,
    ! [X0: $i] : composition(one,X0) = X0,
    inference(demodulation,[status(thm)],[c_30805,c_30809]) ).

tcf(c_30843,plain,
    ! [X0: $i,X1: $i] : converse(join(converse(X0),X1)) = join(X0,converse(X1)),
    inference(superposition,[status(thm)],[c_72,c_30792]) ).

tcf(c_31744,plain,
    ! [X0: $i,X1: $i] : join(X0,join(complement(X0),X1)) = join(iPr_def_10,X1),
    inference(superposition,[status(thm)],[c_218,c_67]) ).

tcf(c_31765,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,complement(X0))) = join(iPr_def_10,X1),
    inference(superposition,[status(thm)],[c_66,c_31744]) ).

tcf(c_31767,plain,
    ! [X0: $i] : join(iPr_def_10,complement(complement(X0))) = join(X0,iPr_def_10),
    inference(superposition,[status(thm)],[c_218,c_31744]) ).

tcf(c_31944,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,complement(X0))) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_3403,c_6271]) ).

tcf(c_31956,plain,
    ! [X0: $i] : join(iPr_def_10,X0) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_31765,c_31944]) ).

tcf(c_31959,plain,
    ! [X0: $i] : join(X0,iPr_def_10) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_31767,c_31956]) ).

tcf(c_31969,plain,
    converse(iPr_def_10) = iPr_def_10,
    inference(superposition,[status(thm)],[c_31956,c_30793]) ).

tcf(c_31977,plain,
    ! [X0: $i] : join(X0,converse(complement(converse(X0)))) = iPr_def_10,
    inference(demodulation,[status(thm)],[c_30793,c_31969]) ).

tcf(c_32775,plain,
    ! [X0: $i] : join(complement(X0),composition(converse(one),complement(X0))) = complement(X0),
    inference(superposition,[status(thm)],[c_30812,c_98]) ).

tcf(c_32783,plain,
    ! [X0: $i] : join(complement(X0),complement(X0)) = complement(X0),
    inference(demodulation,[status(thm)],[c_32775,c_30809,c_30812]) ).

tcf(c_32808,plain,
    ! [X0: $i] : join(complement(iPr_def_10),complement(join(complement(X0),complement(iPr_def_10)))) = X0,
    inference(superposition,[status(thm)],[c_31959,c_97]) ).

tcf(c_33087,plain,
    ! [X0: $i] : join(complement(join(complement(X0),X0)),complement(complement(X0))) = X0,
    inference(superposition,[status(thm)],[c_32783,c_97]) ).

tcf(c_33100,plain,
    ! [X0: $i] : join(complement(iPr_def_10),complement(complement(X0))) = X0,
    inference(demodulation,[status(thm)],[c_33087,c_66,c_218]) ).

tcf(c_33728,plain,
    ! [X0: $i] : join(complement(iPr_def_10),complement(join(complement(iPr_def_10),complement(X0)))) = X0,
    inference(superposition,[status(thm)],[c_66,c_32808]) ).

tcf(c_34396,plain,
    ! [X0: $i] : join(complement(iPr_def_10),complement(X0)) = complement(X0),
    inference(superposition,[status(thm)],[c_33100,c_33728]) ).

tcf(c_34538,plain,
    ! [X0: $i] : complement(complement(X0)) = X0,
    inference(superposition,[status(thm)],[c_34396,c_33100]) ).

tcf(c_34585,plain,
    ! [X0: $i] : join(X0,X0) = X0,
    inference(superposition,[status(thm)],[c_34538,c_32783]) ).

tcf(c_34588,plain,
    ! [X0: $i,X1: $i] : join(complement(join(X0,X1)),complement(join(X0,complement(X1)))) = complement(X0),
    inference(superposition,[status(thm)],[c_34538,c_97]) ).

tcf(c_34620,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X0,X1)) = join(X0,X1),
    inference(superposition,[status(thm)],[c_34585,c_67]) ).

tcf(c_34628,plain,
    ! [X0: $i] : join(complement(complement(X0)),complement(join(complement(X0),complement(complement(X0))))) = X0,
    inference(superposition,[status(thm)],[c_34585,c_97]) ).

tcf(c_34631,plain,
    ! [X0: $i,X1: $i] : join(X0,join(X1,X0)) = join(X1,X0),
    inference(superposition,[status(thm)],[c_34585,c_30772]) ).

tcf(c_34681,plain,
    ! [X0: $i] : join(X0,complement(iPr_def_10)) = X0,
    inference(demodulation,[status(thm)],[c_34628,c_218,c_34538]) ).

tcf(c_35679,plain,
    ! [X0: $i,X1: $i] : join(complement(join(complement(X0),X1)),X0) = X0,
    inference(superposition,[status(thm)],[c_97,c_34620]) ).

tcf(c_35757,plain,
    ! [X0: $i,X1: $i] : join(X0,complement(join(complement(X0),X1))) = X0,
    inference(theory_normalisation,[status(thm)],[c_35679,c_67,c_66]) ).

tcf(c_36235,plain,
    ! [X0: $i,X1: $i] : join(X0,complement(join(X1,complement(X0)))) = X0,
    inference(superposition,[status(thm)],[c_34631,c_35757]) ).

tcf(c_36389,plain,
    ! [X0: $i,X1: $i] : join(complement(X0),complement(join(X1,X0))) = complement(X0),
    inference(superposition,[status(thm)],[c_34538,c_36235]) ).

tcf(c_87880,plain,
    ! [X0: $i,X1: $i] : join(complement(join(complement(join(X0,X1)),join(X0,complement(X1)))),complement(complement(X0))) = join(X0,X1),
    inference(superposition,[status(thm)],[c_34588,c_97]) ).

tcf(c_87947,plain,
    ! [X0: $i,X1: $i] : join(X0,complement(join(X0,complement(X1)))) = join(X0,X1),
    inference(demodulation,[status(thm)],[c_87880,c_66,c_30772,c_34538,c_36389]) ).

tcf(c_105270,plain,
    ! [X0: $i,X1: $i] : join(X0,complement(join(X0,X1))) = join(X0,complement(X1)),
    inference(superposition,[status(thm)],[c_34538,c_87947]) ).

tcf(c_112756,plain,
    ! [X0: $i] : join(X0,complement(converse(complement(converse(X0))))) = join(X0,complement(iPr_def_10)),
    inference(superposition,[status(thm)],[c_31977,c_105270]) ).

tcf(c_113044,plain,
    ! [X0: $i] : join(X0,complement(converse(complement(converse(X0))))) = X0,
    inference(demodulation,[status(thm)],[c_112756,c_34681]) ).

tcf(c_113315,plain,
    ! [X0: $i] : join(X0,converse(complement(converse(complement(converse(converse(X0))))))) = converse(converse(X0)),
    inference(superposition,[status(thm)],[c_113044,c_30843]) ).

tcf(c_113386,plain,
    ! [X0: $i] : join(X0,converse(complement(converse(complement(X0))))) = X0,
    inference(demodulation,[status(thm)],[c_113315,c_72]) ).

tcf(c_113900,plain,
    ! [X0: $i] : join(complement(X0),converse(complement(converse(X0)))) = complement(X0),
    inference(superposition,[status(thm)],[c_34538,c_113386]) ).

tcf(c_114262,plain,
    ! [X0: $i] : join(complement(converse(complement(converse(X0)))),complement(complement(X0))) = complement(converse(complement(converse(X0)))),
    inference(superposition,[status(thm)],[c_113900,c_36389]) ).

tcf(c_114312,plain,
    ! [X0: $i] : complement(converse(complement(converse(X0)))) = X0,
    inference(demodulation,[status(thm)],[c_114262,c_66,c_34538,c_113044]) ).

tcf(c_115249,plain,
    ! [X0: $i] : complement(converse(complement(X0))) = converse(X0),
    inference(superposition,[status(thm)],[c_72,c_114312]) ).

tcf(c_116805,plain,
    ! [X0: $i] : converse(complement(X0)) = complement(converse(X0)),
    inference(superposition,[status(thm)],[c_115249,c_34538]) ).

tcf(c_116902,plain,
    complement(join(complement(converse(sk1)),complement(converse(sk2)))) != complement(converse(join(complement(sk1),complement(sk2)))),
    inference(demodulation,[status(thm)],[c_81,c_116805]) ).

tcf(c_116924,plain,
    complement(join(converse(complement(sk1)),converse(complement(sk2)))) != complement(join(complement(converse(sk1)),complement(converse(sk2)))),
    inference(demodulation,[status(thm)],[c_116902,c_73]) ).

tcf(c_118947,plain,
    complement(join(complement(converse(sk1)),converse(complement(sk2)))) != complement(join(complement(converse(sk1)),complement(converse(sk2)))),
    inference(demodulation,[status(thm)],[c_116924,c_116805]) ).

tcf(c_118948,plain,
    $false,
    inference(ground_joinability,[status(thm)],[c_118947,c_116805]) ).


%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : REL005-3 : TPTP v9.3.1. Released v4.0.0.
% 0.00/0.04  % Command  : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.10/10.38  % Computer : n007.cluster.edu
% 0.10/10.38  % Model    : x86_64 x86_64
% 0.10/10.38  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/10.38  % Memory   : 8046.5625MB
% 0.10/10.38  % OS       : Linux 6.8.0-71-generic
% 0.10/10.38  % CPULimit : 300
% 0.10/10.38  % WCLimit  : 300
% 0.10/10.38  % DateTime : Thu Sep 24 07:04:48 UTC 2026
% 0.10/10.38  % CPUTime  : 
% 0.10/10.38  Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.14/10.42  Running UEQ theorem proving
% 0.14/10.42  Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s ueq_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/10.43  
% 0.14/10.43  % ======== iProver multi-core TPTP/SMT =========
% 0.14/10.43  
% 0.14/10.43  % Detected problem language: tptp
% 0.14/10.44  % Proving...
% 4.96/18.35  WARNING - Clausifier option not provided in the heuristic config "heur/vip2_118404", setting default options.
% 4.96/18.35  % SZS status Started for theBenchmark.p
% 4.96/18.35  % SZS status Unsatisfiable for theBenchmark.p
% 4.96/18.35  
% 4.96/18.35  %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 4.96/18.35  
% 4.96/18.35  % ------  iProver source info
% 4.96/18.35  
% 4.96/18.35  % git: date: 2026-07-19 20:42:38 +0200
% 4.96/18.35  % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 4.96/18.35  % git: non_committed_changes: false
% 4.96/18.35  
% 4.96/18.35  % ------ Parsing...% successful
% 4.96/18.35  
% 4.96/18.35  
% 4.96/18.35  % ------ Clausification by vclausify_rel  & Parsing by iProver...% 
% 4.96/18.35  
% 4.96/18.35  % ------ Preprocessing... sup_sim: 0  sf_s  rm: 0 0s  sf_e  pe_s  pe_e % 
% 4.96/18.35  
% 4.96/18.35  % ------ Preprocessing... gs_s  sp: 0 0s  gs_e  snvd_s sp: 0 0s snvd_e % 
% 4.96/18.35  
% 4.96/18.35  % ------ Preprocessing... sf_s  rm: 0 0s  sf_e 
% 4.96/18.35  % ------ Proving...
% 4.96/18.35  % ------ Problem Properties 
% 4.96/18.35  
% 4.96/18.35  % 
% 4.96/18.35  % clauses                               16
% 4.96/18.35  % conjectures                           1
% 4.96/18.35  % EPR                                   0
% 4.96/18.35  % Horn                                  16
% 4.96/18.35  % unary                                 16
% 4.96/18.35  % binary                                0
% 4.96/18.35  % lits                                  16
% 4.96/18.35  % lits eq                               16
% 4.96/18.35  % fd_pure                               0
% 4.96/18.35  % fd_pseudo                             0
% 4.96/18.35  % fd_cond                               0
% 4.96/18.35  % fd_pseudo_cond                        0
% 4.96/18.35  % AC symbols                            1
% 4.96/18.35  
% 4.96/18.35  % ------ Input Options Time Limit: Unbounded
% 4.96/18.35  
% 4.96/18.35  
% 4.96/18.35  % ------ 
% 4.96/18.35  % Current options:
% 4.96/18.35  % ------ 
% 4.96/18.35  
% 4.96/18.35  
% 4.96/18.35  % 
% 4.96/18.35  
% 4.96/18.35  % ------ Proving...
% 4.96/18.35  % 
% 4.96/18.35  
% 4.96/18.35  % SZS status Unsatisfiable for theBenchmark.p
% 4.96/18.35  
% 4.96/18.35  % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 4.96/18.36  
% 4.96/18.36  
%------------------------------------------------------------------------------