%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SET071-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n004.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 02:46:23 PM UTC 2026
% Result : Unsatisfiable 10.38s 2.31s
% Output : CNFRefutation 10.38s
% Verified :
% SZS Type : Refutation
% Derivation depth : 19
% Number of leaves : 20
% Syntax : Number of formulae : 87 ( 30 unt; 1 def)
% Number of atoms : 207 ( 70 equ)
% Maximal formula atoms : 4 ( 2 avg)
% Number of connectives : 142 ( 62 ~; 80 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 4 avg)
% Maximal term depth : 8 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 5 ( 3 usr; 2 prp; 0-2 aty)
% Number of functors : 18 ( 18 usr; 6 con; 0-3 aty)
% Number of variables : 107 ( 0 sgn 107 !; 0 ?; 72 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X2,X0,X1] :
( member(X2,X1)
| ~ member(X2,X0)
| ~ subclass(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',subclass_members) ).
fof(f2,axiom,
! [X0,X1] :
( subclass(X0,X1)
| member(not_subclass_element(X0,X1),X0) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',not_subclass_members1) ).
fof(f3,axiom,
! [X0,X1] :
( subclass(X0,X1)
| ~ member(not_subclass_element(X0,X1),X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',not_subclass_members2) ).
fof(f4,axiom,
! [X0] : subclass(X0,universal_class),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',class_elements_are_sets) ).
fof(f7,axiom,
! [X0,X1] :
( X0 = X1
| ~ subclass(X1,X0)
| ~ subclass(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',subclass_implies_equal) ).
fof(f8,axiom,
! [X2,X0,X1] :
( X0 = X2
| X0 = X1
| ~ member(X0,unordered_pair(X1,X2)) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',unordered_pair_member) ).
fof(f12,axiom,
! [X0] : unordered_pair(X0,X0) = singleton(X0),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',singleton_set) ).
fof(f21,axiom,
! [X2,X0,X1] :
( member(X0,X1)
| ~ member(X0,intersection(X1,X2)) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',intersection1) ).
fof(f22,axiom,
! [X2,X0,X1] :
( member(X0,X2)
| ~ member(X0,intersection(X1,X2)) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',intersection2) ).
fof(f23,axiom,
! [X2,X0,X1] :
( member(X0,intersection(X1,X2))
| ~ member(X0,X2)
| ~ member(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',intersection3) ).
fof(f28,axiom,
! [X2,X0,X1] : intersection(X0,cross_product(X1,X2)) = restrict(X0,X1,X2),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',restriction1) ).
fof(f30,axiom,
! [X0,X1] :
( ~ member(X1,domain_of(X0))
| restrict(X0,singleton(X1),universal_class) != null_class ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',domain1) ).
fof(f39,axiom,
! [X0] : domain_of(flip(cross_product(X0,universal_class))) = inverse(X0),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',inverse) ).
fof(f67,axiom,
! [X0] :
( member(regular(X0),X0)
| X0 = null_class ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',regularity1) ).
fof(f68,plain,
! [X0] :
( member(regular(X0),X0)
| null_class = X0 ),
inference(reorient_equations,[],[f67]) ).
fof(f69,axiom,
! [X0] :
( intersection(X0,regular(X0)) = null_class
| X0 = null_class ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',regularity2) ).
fof(f70,plain,
! [X0] :
( null_class = intersection(X0,regular(X0))
| null_class = X0 ),
inference(reorient_equations,[],[f69]) ).
fof(f78,axiom,
intersection(cross_product(universal_class,universal_class),intersection(cross_product(universal_class,universal_class),complement(compose(complement(element_relation),inverse(element_relation))))) = subset_relation,
file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',subset_relation) ).
fof(f101,negated_conjecture,
unordered_pair(x,y) != null_class,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_unordered_pair_1) ).
fof(f102,plain,
null_class != unordered_pair(x,y),
inference(reorient_equations,[],[f101]) ).
fof(f103,negated_conjecture,
~ member(x,universal_class),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_unordered_pair_2) ).
fof(f104,negated_conjecture,
~ member(y,universal_class),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_unordered_pair_3) ).
fof(f122,plain,
! [X0,X1] :
( ~ member(X1,domain_of(X0))
| null_class != intersection(X0,cross_product(unordered_pair(X1,X1),universal_class)) ),
inference(definition_unfolding,[],[f30,f28,f12]) ).
fof(f144,plain,
subset_relation = intersection(cross_product(universal_class,universal_class),intersection(cross_product(universal_class,universal_class),complement(compose(complement(element_relation),domain_of(flip(cross_product(element_relation,universal_class))))))),
inference(definition_unfolding,[],[f78,f39]) ).
tcf(c_143,plain,
! [X0: $i,X1: $i,X2: $i] :
( member(X0,X2)
| ~ subclass(X1,X2)
| ~ member(X0,X1) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_144,plain,
! [X0: $i,X1: $i] :
( subclass(X0,X1)
| member(not_subclass_element(X0,X1),X0) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_145,plain,
! [X0: $i,X1: $i] :
( subclass(X0,X1)
| ~ member(not_subclass_element(X0,X1),X1) ),
inference(cnf_transformation,[],[f3]) ).
tcf(c_146,plain,
! [X0: $i] : subclass(X0,universal_class),
inference(cnf_transformation,[],[f4]) ).
tcf(c_149,plain,
! [X0: $i,X1: $i] :
( ( X0 = X1 )
| ~ subclass(X1,X0)
| ~ subclass(X0,X1) ),
inference(cnf_transformation,[],[f7]) ).
tcf(c_150,plain,
! [X0: $i,X1: $i,X2: $i] :
( ( X0 = X2 )
| ( X0 = X1 )
| ~ member(X0,unordered_pair(X1,X2)) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_161,plain,
! [X0: $i,X1: $i,X2: $i] :
( member(X0,X1)
| ~ member(X0,intersection(X1,X2)) ),
inference(cnf_transformation,[],[f21]) ).
tcf(c_162,plain,
! [X0: $i,X1: $i,X2: $i] :
( member(X0,X2)
| ~ member(X0,intersection(X1,X2)) ),
inference(cnf_transformation,[],[f22]) ).
tcf(c_163,plain,
! [X0: $i,X1: $i,X2: $i] :
( member(X0,intersection(X1,X2))
| ~ member(X0,X2)
| ~ member(X0,X1) ),
inference(cnf_transformation,[],[f23]) ).
tcf(c_167,plain,
! [X0: $i,X1: $i] :
( ~ member(X1,domain_of(X0))
| ( intersection(X0,cross_product(unordered_pair(X1,X1),universal_class)) != null_class ) ),
inference(cnf_transformation,[],[f122]) ).
tcf(c_195,plain,
! [X0: $i] :
( member(regular(X0),X0)
| ( X0 = null_class ) ),
inference(cnf_transformation,[],[f68]) ).
tcf(c_196,plain,
! [X0: $i] :
( ( X0 = null_class )
| ( intersection(X0,regular(X0)) = null_class ) ),
inference(cnf_transformation,[],[f70]) ).
tcf(c_202,plain,
intersection(cross_product(universal_class,universal_class),intersection(cross_product(universal_class,universal_class),complement(compose(complement(element_relation),domain_of(flip(cross_product(element_relation,universal_class))))))) = subset_relation,
inference(cnf_transformation,[],[f144]) ).
tcf(c_218,negated_conjecture,
unordered_pair(x,y) != null_class,
inference(cnf_transformation,[],[f102]) ).
tcf(c_219,negated_conjecture,
~ member(x,universal_class),
inference(cnf_transformation,[],[f103]) ).
tcf(c_220,negated_conjecture,
~ member(y,universal_class),
inference(cnf_transformation,[],[f104]) ).
tcf(c_2651,definition,
iPr_def_10 = unordered_pair(x,y),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_2652,negated_conjecture,
~ member(y,universal_class),
inference(demodulation,[status(thm)],[c_220]) ).
tcf(c_2653,negated_conjecture,
~ member(x,universal_class),
inference(demodulation,[status(thm)],[c_219]) ).
tcf(c_2654,negated_conjecture,
iPr_def_10 != null_class,
inference(demodulation,[status(thm)],[c_218,c_2651]) ).
tcf(c_3457,plain,
! [X0: $i,X1: $i,X2: $i] :
( subclass(intersection(X0,X1),X2)
| member(not_subclass_element(intersection(X0,X1),X2),X0) ),
inference(superposition,[status(thm)],[c_144,c_161]) ).
tcf(c_3458,plain,
! [X0: $i,X1: $i] :
( member(regular(intersection(X0,X1)),X0)
| ( intersection(X0,X1) = null_class ) ),
inference(superposition,[status(thm)],[c_195,c_161]) ).
tcf(c_3475,plain,
! [X0: $i,X1: $i] :
( member(regular(intersection(X0,X1)),X1)
| ( intersection(X0,X1) = null_class ) ),
inference(superposition,[status(thm)],[c_195,c_162]) ).
tcf(c_3540,plain,
! [X0: $i,X1: $i] :
( member(regular(X0),X1)
| ( X0 = null_class )
| ~ subclass(X0,X1) ),
inference(superposition,[status(thm)],[c_195,c_143]) ).
tcf(c_4135,plain,
! [X0: $i,X1: $i,X2: $i] :
( ( intersection(unordered_pair(X0,X1),X2) = null_class )
| ( regular(intersection(unordered_pair(X0,X1),X2)) = X1 )
| ( regular(intersection(unordered_pair(X0,X1),X2)) = X0 ) ),
inference(superposition,[status(thm)],[c_3458,c_150]) ).
tcf(c_4210,plain,
! [X0: $i,X1: $i] : subclass(intersection(X0,X1),X0),
inference(superposition,[status(thm)],[c_3457,c_145]) ).
tcf(c_4268,plain,
! [X0: $i] :
( subclass(null_class,X0)
| ( X0 = null_class ) ),
inference(superposition,[status(thm)],[c_196,c_4210]) ).
tcf(c_4271,plain,
! [X0: $i,X1: $i] :
( ( intersection(X0,X1) = X0 )
| ~ subclass(X0,intersection(X0,X1)) ),
inference(superposition,[status(thm)],[c_4210,c_149]) ).
tcf(c_4292,plain,
! [X0: $i] :
( ( X0 = null_class )
| ~ subclass(X0,null_class) ),
inference(superposition,[status(thm)],[c_4268,c_149]) ).
tcf(c_4318,plain,
! [X0: $i] : intersection(null_class,X0) = null_class,
inference(superposition,[status(thm)],[c_4210,c_4292]) ).
tcf(c_4464,plain,
! [X0: $i] : ~ member(X0,domain_of(null_class)),
inference(superposition,[status(thm)],[c_4318,c_167]) ).
tcf(c_4480,plain,
domain_of(null_class) = null_class,
inference(superposition,[status(thm)],[c_195,c_4464]) ).
tcf(c_4485,plain,
! [X0: $i] : ~ member(X0,null_class),
inference(demodulation,[status(thm)],[c_4464,c_4480]) ).
tcf(c_4550,plain,
! [X0: $i] :
( ( regular(intersection(iPr_def_10,X0)) = x )
| ( intersection(unordered_pair(x,y),X0) = null_class )
| ( regular(intersection(unordered_pair(x,y),X0)) = y ) ),
inference(superposition,[status(thm)],[c_2651,c_4135]) ).
tcf(c_4587,plain,
! [X0: $i] :
( ( intersection(iPr_def_10,X0) = null_class )
| ( regular(intersection(iPr_def_10,X0)) = y )
| ( regular(intersection(iPr_def_10,X0)) = x ) ),
inference(light_normalisation,[status(thm)],[c_4550,c_2651]) ).
tcf(c_4674,plain,
! [X0: $i] :
( member(X0,cross_product(universal_class,universal_class))
| ~ member(X0,subset_relation) ),
inference(superposition,[status(thm)],[c_202,c_161]) ).
tcf(c_4758,plain,
! [X0: $i,X1: $i] :
( member(X1,X0)
| ~ member(X1,subset_relation)
| ~ subclass(cross_product(universal_class,universal_class),X0) ),
inference(superposition,[status(thm)],[c_4674,c_143]) ).
tcf(c_7626,plain,
! [X0: $i] :
( member(X0,universal_class)
| ~ member(X0,subset_relation) ),
inference(superposition,[status(thm)],[c_146,c_4758]) ).
tcf(c_7648,plain,
! [X0: $i] :
( member(regular(intersection(X0,subset_relation)),universal_class)
| ( intersection(X0,subset_relation) = null_class ) ),
inference(superposition,[status(thm)],[c_3475,c_7626]) ).
tcf(c_7654,plain,
! [X0: $i] :
( member(regular(X0),universal_class)
| ( X0 = null_class )
| ~ subclass(X0,subset_relation) ),
inference(superposition,[status(thm)],[c_3540,c_7626]) ).
tcf(c_7716,plain,
! [X0: $i] :
( member(x,universal_class)
| ~ subclass(X0,universal_class)
| ~ member(x,X0) ),
inference(instantiation,[status(thm)],[c_143]) ).
tcf(c_7717,plain,
! [X0: $i] :
( member(y,universal_class)
| ~ subclass(X0,universal_class)
| ~ member(y,X0) ),
inference(instantiation,[status(thm)],[c_143]) ).
tcf(c_11527,plain,
! [X0: $i] :
( member(y,universal_class)
| ( intersection(iPr_def_10,X0) = null_class )
| ( regular(intersection(iPr_def_10,X0)) = x )
| ~ subclass(intersection(iPr_def_10,X0),subset_relation) ),
inference(superposition,[status(thm)],[c_4587,c_7654]) ).
tcf(c_11532,plain,
! [X0: $i] :
( member(y,X0)
| ( intersection(iPr_def_10,X0) = null_class )
| ( regular(intersection(iPr_def_10,X0)) = x ) ),
inference(superposition,[status(thm)],[c_4587,c_3475]) ).
tcf(c_11538,plain,
( member(y,universal_class)
| ( intersection(iPr_def_10,subset_relation) = null_class )
| ( regular(intersection(iPr_def_10,subset_relation)) = x ) ),
inference(superposition,[status(thm)],[c_4587,c_7648]) ).
tcf(c_11539,plain,
( ( intersection(iPr_def_10,subset_relation) = null_class )
| ( regular(intersection(iPr_def_10,subset_relation)) = x ) ),
inference(forward_subsumption_resolution,[status(thm)],[c_11538,c_2652]) ).
tcf(c_11568,plain,
! [X0: $i] :
( ( intersection(iPr_def_10,X0) = null_class )
| ( regular(intersection(iPr_def_10,X0)) = x )
| ~ subclass(intersection(iPr_def_10,X0),subset_relation) ),
inference(forward_subsumption_resolution,[status(thm)],[c_11527,c_2652]) ).
tcf(c_12028,plain,
( member(x,universal_class)
| ( intersection(iPr_def_10,subset_relation) = null_class ) ),
inference(superposition,[status(thm)],[c_11539,c_7648]) ).
tcf(c_12029,plain,
intersection(iPr_def_10,subset_relation) = null_class,
inference(forward_subsumption_resolution,[status(thm)],[c_12028,c_2653]) ).
tcf(c_12036,plain,
( ( intersection(iPr_def_10,subset_relation) = iPr_def_10 )
| ~ subclass(iPr_def_10,null_class) ),
inference(superposition,[status(thm)],[c_12029,c_4271]) ).
tcf(c_12062,plain,
( ( null_class = iPr_def_10 )
| ~ subclass(iPr_def_10,null_class) ),
inference(light_normalisation,[status(thm)],[c_12036,c_12029]) ).
tcf(c_12153,plain,
! [X0: $i] :
( ( intersection(iPr_def_10,X0) = null_class )
| ( regular(intersection(iPr_def_10,X0)) = x ) ),
inference(global_subsumption_just,[status(thm)],[c_11568,c_146,c_220,c_7717,c_11532]) ).
tcf(c_12170,plain,
! [X0: $i] :
( member(x,universal_class)
| ( intersection(iPr_def_10,X0) = null_class )
| ~ subclass(intersection(iPr_def_10,X0),subset_relation) ),
inference(superposition,[status(thm)],[c_12153,c_7654]) ).
tcf(c_12175,plain,
! [X0: $i] :
( member(x,X0)
| ( intersection(iPr_def_10,X0) = null_class ) ),
inference(superposition,[status(thm)],[c_12153,c_3475]) ).
tcf(c_12198,plain,
! [X0: $i] :
( ( intersection(iPr_def_10,X0) = null_class )
| ~ subclass(intersection(iPr_def_10,X0),subset_relation) ),
inference(forward_subsumption_resolution,[status(thm)],[c_12170,c_2653]) ).
tcf(c_12241,plain,
! [X0: $i] : intersection(iPr_def_10,X0) = null_class,
inference(global_subsumption_just,[status(thm)],[c_12198,c_146,c_219,c_7716,c_12175]) ).
tcf(c_12266,plain,
! [X0: $i,X1: $i] :
( member(X0,null_class)
| ~ member(X0,iPr_def_10)
| ~ member(X0,X1) ),
inference(superposition,[status(thm)],[c_12241,c_163]) ).
tcf(c_12301,plain,
! [X0: $i,X1: $i] :
( ~ member(X0,iPr_def_10)
| ~ member(X0,X1) ),
inference(forward_subsumption_resolution,[status(thm)],[c_12266,c_4485]) ).
tcf(c_13155,plain,
! [X0: $i,X1: $i] :
( subclass(X0,X1)
| ~ member(not_subclass_element(X0,X1),iPr_def_10) ),
inference(superposition,[status(thm)],[c_144,c_12301]) ).
tcf(c_13657,plain,
! [X0: $i] : subclass(iPr_def_10,X0),
inference(superposition,[status(thm)],[c_144,c_13155]) ).
tcf(c_13669,plain,
null_class = iPr_def_10,
inference(backward_subsumption_resolution,[status(thm)],[c_12062,c_13657]) ).
tcf(c_13766,plain,
iPr_def_10 != iPr_def_10,
inference(demodulation,[status(thm)],[c_2654,c_13669]) ).
tcf(c_13767,plain,
$false,
inference(equality_resolution_simp,[status(thm)],[c_13766]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET071-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.13/0.39 % Computer : n004.cluster.edu
% 0.13/0.39 % Model : x86_64 x86_64
% 0.13/0.39 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.39 % Memory : 8046.5625MB
% 0.13/0.39 % OS : Linux 6.8.0-71-generic
% 0.13/0.39 % CPULimit : 300
% 0.13/0.39 % WCLimit : 300
% 0.13/0.39 % DateTime : Thu Sep 24 09:34:51 UTC 2026
% 0.13/0.39 % CPUTime :
% 0.13/0.39 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.13/0.43 Running first-order theorem proving
% 0.13/0.43 Running: /export/starexec/sandbox2/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.45
% 0.13/0.45 % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.45
% 0.13/0.45 % Detected problem language: tptp
% 0.18/0.46 % Proving...
% 10.38/2.31 % SZS status Started for theBenchmark.p
% 10.38/2.31 % SZS status Unsatisfiable for theBenchmark.p
% 10.38/2.31
% 10.38/2.31 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 10.38/2.31
% 10.38/2.31 % ------ iProver source info
% 10.38/2.31
% 10.38/2.31 % git: date: 2026-07-19 20:42:38 +0200
% 10.38/2.31 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 10.38/2.31 % git: non_committed_changes: false
% 10.38/2.31
% 10.38/2.31 % ------ Parsing...% successful
% 10.38/2.31
% 10.38/2.31
% 10.38/2.31 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 10.38/2.31
% 10.38/2.31 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe:2:0s pe_e sup_sim: 0 sf_s rm: 2 0s sf_e pe_s pe_e %
% 10.38/2.31
% 10.38/2.31 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 10.38/2.31
% 10.38/2.31 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 10.38/2.31 % ------ Proving...
% 10.38/2.31 % ------ Problem Properties
% 10.38/2.31
% 10.38/2.31 %
% 10.38/2.31 % clauses 71
% 10.38/2.31 % conjectures 3
% 10.38/2.31 % EPR 15
% 10.38/2.31 % Horn 63
% 10.38/2.31 % unary 19
% 10.38/2.31 % binary 32
% 10.38/2.31 % lits 149
% 10.38/2.31 % lits eq 22
% 10.38/2.31 % fd_pure 0
% 10.38/2.31 % fd_pseudo 0
% 10.38/2.31 % fd_cond 3
% 10.38/2.31 % fd_pseudo_cond 3
% 10.38/2.31 % AC symbols 0
% 10.38/2.31
% 10.38/2.31 % ------ Schedule dynamic 5 is on
% 10.38/2.31
% 10.38/2.31 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 10.38/2.31
% 10.38/2.31
% 10.38/2.31 % ------
% 10.38/2.31 % Current options:
% 10.38/2.31 % ------
% 10.38/2.31
% 10.38/2.31
% 10.38/2.31 %
% 10.38/2.31
% 10.38/2.31 % ------ Proving...
% 10.38/2.31 %
% 10.38/2.31
% 10.38/2.31 % SZS status Unsatisfiable for theBenchmark.p
% 10.38/2.31
% 10.38/2.31 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 10.38/2.31
% 10.38/2.31
%------------------------------------------------------------------------------