%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SET061+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% Computer : n015.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 02:46:18 PM UTC 2026
% Result : Theorem 3.43s 6.30s
% Output : CNFRefutation 3.43s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 2
% Syntax : Number of formulae : 11 ( 11 unt; 0 def)
% Number of atoms : 11 ( 0 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 6 ( 6 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 3 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 : 2 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 2 ( 2 usr; 1 con; 0-1 aty)
% Number of variables : 13 ( 0 sgn 10 !; 3 ?; 3 :)
% Comments :
%------------------------------------------------------------------------------
fof(f16,axiom,
! [X0] : ~ member(X0,null_class),
file('/export/starexec/sandbox2/benchmark/Axioms/SET005+0.ax',null_class_defn) ).
fof(f44,conjecture,
? [X0] :
! [X1] : ~ member(X1,X0),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',existence_of_null_class) ).
fof(f45,negated_conjecture,
~ ? [X0] :
! [X1] : ~ member(X1,X0),
inference(negated_conjecture,[status(cth)],[f44]) ).
fof(f60,plain,
! [X0] :
? [X1] : member(X1,X0),
inference(ennf_transformation,[],[f45]) ).
fof(f103,plain,
! [X0] : member(sK6(X0),X0),
inference(skolemize,[status(esa),new_symbols(skolem,[sK6]),skolemize(X1,sK6(X0))],[f60]) ).
fof(f135,plain,
! [X0] : ~ member(X0,null_class),
inference(cnf_transformation,[],[f16]) ).
fof(f191,plain,
! [X0] : member(sK6(X0),X0),
inference(cnf_transformation,[],[f103]) ).
tcf(c_77,plain,
! [X0: $i] : ~ member(X0,null_class),
inference(cnf_transformation,[],[f135]) ).
tcf(c_128,negated_conjecture,
! [X0: $i] : member(sK6(X0),X0),
inference(cnf_transformation,[],[f191]) ).
tcf(c_1553,negated_conjecture,
! [X0: $i] : member(sK6(X0),X0),
inference(demodulation,[status(thm)],[c_128]) ).
tcf(c_2355,plain,
$false,
inference(superposition,[status(thm)],[c_1553,c_77]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET061+1 : TPTP v9.3.1. Bugfixed v5.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.12/5.38 % Computer : n015.cluster.edu
% 0.12/5.38 % Model : x86_64 x86_64
% 0.12/5.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/5.38 % Memory : 8046.5625MB
% 0.12/5.38 % OS : Linux 6.8.0-71-generic
% 0.12/5.38 % CPULimit : 300
% 0.12/5.38 % WCLimit : 300
% 0.12/5.38 % DateTime : Thu Sep 24 09:32:48 UTC 2026
% 0.12/5.38 % CPUTime :
% 0.12/5.38 Running run_iprover 300 /export/starexec/sandbox2/benchmark/theBenchmark.p THM
% 0.15/5.42 Running first-order theorem proving
% 0.15/5.42 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
% 0.15/5.43
% 0.15/5.43 % ======== iProver multi-core TPTP/SMT =========
% 0.15/5.43
% 0.15/5.44 % Detected problem language: tptp
% 0.15/5.45 % Proving...
% 3.43/6.30 % SZS status Started for theBenchmark.p
% 3.43/6.30 % SZS status Theorem for theBenchmark.p
% 3.43/6.30
% 3.43/6.30 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 3.43/6.30
% 3.43/6.30 % ------ iProver source info
% 3.43/6.30
% 3.43/6.30 % git: date: 2026-07-19 20:42:38 +0200
% 3.43/6.30 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 3.43/6.30 % git: non_committed_changes: false
% 3.43/6.30
% 3.43/6.30 % ------ Parsing...
% 3.43/6.30 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 3.43/6.30
% 3.43/6.30 % ------ 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: 4 0s sf_e pe_s pe_e %
% 3.43/6.30
% 3.43/6.30 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 3.43/6.30
% 3.43/6.30 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 3.43/6.30 % ------ Proving...
% 3.43/6.30 % ------ Problem Properties
% 3.43/6.30
% 3.43/6.30 %
% 3.43/6.30 % clauses 75
% 3.43/6.30 % conjectures 1
% 3.43/6.30 % EPR 7
% 3.43/6.30 % Horn 67
% 3.43/6.30 % unary 15
% 3.43/6.30 % binary 39
% 3.43/6.30 % lits 157
% 3.43/6.30 % lits eq 14
% 3.43/6.30 % fd_pure 0
% 3.43/6.30 % fd_pseudo 0
% 3.43/6.30 % fd_cond 4
% 3.43/6.30 % fd_pseudo_cond 3
% 3.43/6.30 % AC symbols 0
% 3.43/6.30
% 3.43/6.30 % ------ Schedule dynamic 5 is on
% 3.43/6.30
% 3.43/6.30 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.43/6.30
% 3.43/6.30
% 3.43/6.30 % ------
% 3.43/6.30 % Current options:
% 3.43/6.30 % ------
% 3.43/6.30
% 3.43/6.30
% 3.43/6.30 %
% 3.43/6.30
% 3.43/6.30 % ------ Proving...
% 3.43/6.30 %
% 3.43/6.30
% 3.43/6.30 % SZS status Theorem for theBenchmark.p
% 3.43/6.30
% 3.43/6.30 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.43/6.30
% 3.43/6.30
%------------------------------------------------------------------------------