%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SET004-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n001.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 02:45:58 PM UTC 2026
% Result : Unsatisfiable 1.64s 1.26s
% Output : CNFRefutation 1.64s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 5
% Syntax : Number of formulae : 16 ( 7 unt; 0 def)
% Number of atoms : 30 ( 0 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 29 ( 15 ~; 14 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 8 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-3 aty)
% Number of functors : 4 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 19 ( 0 sgn 19 !; 0 ?; 11 :)
% Comments :
%------------------------------------------------------------------------------
fof(f2,axiom,
! [X0,X1] :
( member(member_of_1_not_of_2(X0,X1),X0)
| subset(X0,X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET001-0.ax',subsets_axiom1) ).
fof(f3,axiom,
! [X0,X1] :
( subset(X0,X1)
| ~ member(member_of_1_not_of_2(X0,X1),X1) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET001-0.ax',subsets_axiom2) ).
fof(f8,axiom,
! [X2,X3,X0,X1] :
( member(X3,X2)
| ~ member(X3,X0)
| ~ union(X0,X1,X2) ),
file('/export/starexec/sandbox2/benchmark/Axioms/SET001-1.ax',member_of_set1_is_member_of_union) ).
fof(f13,axiom,
union(a,b,aUb),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',a_union_b_is_aUb) ).
fof(f14,negated_conjecture,
~ subset(a,aUb),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_a_is_a_subset_of_aUb) ).
tcf(c_64,plain,
! [X0: $i,X1: $i] :
( subset(X0,X1)
| member(member_of_1_not_of_2(X0,X1),X0) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_65,plain,
! [X0: $i,X1: $i] :
( subset(X0,X1)
| ~ member(member_of_1_not_of_2(X0,X1),X1) ),
inference(cnf_transformation,[],[f3]) ).
tcf(c_70,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( member(X3,X2)
| ~ member(X3,X0)
| ~ union(X0,X1,X2) ),
inference(cnf_transformation,[],[f8]) ).
tcf(c_75,plain,
union(a,b,aUb),
inference(cnf_transformation,[],[f13]) ).
tcf(c_76,negated_conjecture,
~ subset(a,aUb),
inference(cnf_transformation,[],[f14]) ).
tcf(c_177,plain,
~ member(member_of_1_not_of_2(a,aUb),aUb),
inference(resolution,[status(thm)],[c_76,c_65]) ).
tcf(c_181,plain,
member(member_of_1_not_of_2(a,aUb),a),
inference(resolution,[status(thm)],[c_76,c_64]) ).
tcf(c_710,plain,
! [X0: $i,X1: $i] :
( member(member_of_1_not_of_2(a,aUb),X1)
| ~ union(a,X0,X1)
| ~ member(member_of_1_not_of_2(a,aUb),a) ),
inference(instantiation,[status(thm)],[c_70]) ).
tcf(c_722,plain,
! [X0: $i] :
( member(member_of_1_not_of_2(a,aUb),aUb)
| ~ union(a,X0,aUb)
| ~ member(member_of_1_not_of_2(a,aUb),a) ),
inference(instantiation,[status(thm)],[c_710]) ).
tcf(c_734,plain,
( member(member_of_1_not_of_2(a,aUb),aUb)
| ~ union(a,b,aUb)
| ~ member(member_of_1_not_of_2(a,aUb),a) ),
inference(instantiation,[status(thm)],[c_722]) ).
tcf(c_735,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_734,c_181,c_177,c_75]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET004-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.03 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.09/0.36 % Computer : n001.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Thu Sep 24 09:10:08 UTC 2026
% 0.12/0.36 % CPUTime :
% 0.12/0.36 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.12/0.39 Running first-order theorem proving
% 0.12/0.40 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
% 0.12/0.41
% 0.12/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.41
% 0.12/0.41 % Detected problem language: tptp
% 0.12/0.42 % Proving...
% 1.64/1.26 % SZS status Started for theBenchmark.p
% 1.64/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 1.64/1.26
% 1.64/1.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 1.64/1.26
% 1.64/1.26 % ------ iProver source info
% 1.64/1.26
% 1.64/1.26 % git: date: 2026-07-19 20:42:38 +0200
% 1.64/1.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 1.64/1.26 % git: non_committed_changes: false
% 1.64/1.26
% 1.64/1.26 % ------ Parsing...% successful
% 1.64/1.26
% 1.64/1.26
% 1.64/1.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 1.64/1.26
% 1.64/1.26 % ------ Preprocessing... sf_s rm: 0 0s sf_e pe_s pe:1:0s pe_e sf_s rm: 0 0s sf_e pe_s pe_e %
% 1.64/1.26
% 1.64/1.26 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 1.64/1.26 % ------ Proving...
% 1.64/1.26 % ------ Problem Properties
% 1.64/1.26
% 1.64/1.26 %
% 1.64/1.26 % clauses 11
% 1.64/1.26 % conjectures 1
% 1.64/1.26 % EPR 6
% 1.64/1.26 % Horn 8
% 1.64/1.26 % unary 2
% 1.64/1.26 % binary 2
% 1.64/1.26 % lits 29
% 1.64/1.26 % lits eq 0
% 1.64/1.26 % fd_pure 0
% 1.64/1.26 % fd_pseudo 0
% 1.64/1.26 % fd_cond 0
% 1.64/1.26 % fd_pseudo_cond 0
% 1.64/1.26 % AC symbols 0
% 1.64/1.26
% 1.64/1.26 % ------ Schedule dynamic 5 is on
% 1.64/1.26
% 1.64/1.26 % ------ no equalities: superposition off
% 1.64/1.26
% 1.64/1.26 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 1.64/1.26
% 1.64/1.26
% 1.64/1.26 % ------
% 1.64/1.26 % Current options:
% 1.64/1.26 % ------
% 1.64/1.26
% 1.64/1.26
% 1.64/1.26 %
% 1.64/1.26
% 1.64/1.26 % ------ Proving...
% 1.64/1.26 %
% 1.64/1.26
% 1.64/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 1.64/1.26
% 1.64/1.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 1.64/1.26
% 1.64/1.26
%------------------------------------------------------------------------------