%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWC020-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n026.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 03:07:32 PM UTC 2026
% Result : Unsatisfiable 3.42s 1.26s
% Output : CNFRefutation 3.42s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 10
% Syntax : Number of formulae : 30 ( 12 unt; 0 def)
% Number of atoms : 58 ( 18 equ)
% Maximal formula atoms : 5 ( 1 avg)
% Number of connectives : 59 ( 31 ~; 28 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 3 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of predicates : 5 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 6 ( 0 sgn 6 !; 0 ?; 3 :)
% Comments :
%------------------------------------------------------------------------------
fof(f61,axiom,
! [X0] :
( frontsegP(X0,X0)
| ~ ssList(X0) ),
file('/export/starexec/sandbox/benchmark/Axioms/SWC001-0.ax',clause61) ).
fof(f202,negated_conjecture,
ssList(sk3),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_3) ).
fof(f204,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_5) ).
fof(f205,negated_conjecture,
sk1 = sk3,
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_6) ).
fof(f206,negated_conjecture,
! [X0] :
( ~ frontsegP(sk1,X0)
| ~ frontsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_7) ).
fof(f207,negated_conjecture,
( nil != sk1
| nil != sk2 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_8) ).
fof(f208,negated_conjecture,
( neq(sk3,nil)
| nil = sk4 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_9) ).
fof(f209,negated_conjecture,
( frontsegP(sk4,sk3)
| nil = sk4 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_10) ).
fof(f210,negated_conjecture,
( neq(sk3,nil)
| nil = sk3 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_11) ).
fof(f211,negated_conjecture,
( frontsegP(sk4,sk3)
| nil = sk3 ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',co1_12) ).
fof(f214,plain,
! [X0] :
( ~ frontsegP(sk3,X0)
| ~ frontsegP(sk4,X0)
| ~ neq(X0,nil)
| ~ ssList(X0) ),
inference(definition_unfolding,[],[f206,f204,f205]) ).
fof(f215,plain,
( nil != sk3
| nil != sk4 ),
inference(definition_unfolding,[],[f207,f204,f205]) ).
tcf(c_306,plain,
! [X0: $i] :
( frontsegP(X0,X0)
| ~ ssList(X0) ),
inference(cnf_transformation,[],[f61]) ).
tcf(c_433,negated_conjecture,
ssList(sk3),
inference(cnf_transformation,[],[f202]) ).
tcf(c_435,negated_conjecture,
! [X0: $i] :
( ~ ssList(X0)
| ~ frontsegP(sk4,X0)
| ~ frontsegP(sk3,X0)
| ~ neq(X0,nil) ),
inference(cnf_transformation,[],[f214]) ).
tcf(c_436,negated_conjecture,
( ( sk4 != nil )
| ( sk3 != nil ) ),
inference(cnf_transformation,[],[f215]) ).
tcf(c_437,negated_conjecture,
( neq(sk3,nil)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f208]) ).
tcf(c_438,negated_conjecture,
( frontsegP(sk4,sk3)
| ( sk4 = nil ) ),
inference(cnf_transformation,[],[f209]) ).
tcf(c_439,negated_conjecture,
( neq(sk3,nil)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f210]) ).
tcf(c_440,negated_conjecture,
( frontsegP(sk4,sk3)
| ( sk3 = nil ) ),
inference(cnf_transformation,[],[f211]) ).
tcf(c_554,negated_conjecture,
frontsegP(sk4,sk3),
inference(global_subsumption_just,[status(thm)],[c_440,c_440,c_438,c_436]) ).
tcf(c_556,negated_conjecture,
neq(sk3,nil),
inference(global_subsumption_just,[status(thm)],[c_439,c_439,c_437,c_436]) ).
tcf(c_560,negated_conjecture,
neq(sk3,nil),
inference(global_subsumption_just,[status(thm)],[c_437,c_556]) ).
tcf(c_2970,plain,
! [X0: $i] :
( ~ ssList(X0)
| ~ frontsegP(sk4,X0)
| ~ frontsegP(sk3,X0)
| ( nil != nil )
| ( X0 != sk3 ) ),
inference(resolution_lifted,[status(thm)],[c_435,c_560]) ).
tcf(c_2971,plain,
( ~ ssList(sk3)
| ~ frontsegP(sk4,sk3)
| ~ frontsegP(sk3,sk3) ),
inference(unflattening,[status(thm)],[c_2970]) ).
tcf(c_2972,plain,
~ frontsegP(sk3,sk3),
inference(global_subsumption_just,[status(thm)],[c_2971,c_433,c_554,c_2971]) ).
tcf(c_6543,plain,
~ frontsegP(sk3,sk3),
inference(demodulation,[status(thm)],[c_2972]) ).
tcf(c_6546,negated_conjecture,
ssList(sk3),
inference(demodulation,[status(thm)],[c_433]) ).
tcf(c_9097,plain,
~ ssList(sk3),
inference(superposition,[status(thm)],[c_306,c_6543]) ).
tcf(c_9098,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_9097,c_6546]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC020-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.08/0.35 % Computer : n026.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.35 % CPULimit : 300
% 0.08/0.35 % WCLimit : 300
% 0.08/0.35 % DateTime : Thu Sep 24 16:00:09 UTC 2026
% 0.08/0.35 % CPUTime :
% 0.08/0.35 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.13/0.39 Running first-order theorem proving
% 0.13/0.39 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s fof_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.40
% 0.13/0.40 % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.40
% 0.13/0.40 % Detected problem language: tptp
% 0.13/0.41 % Proving...
% 3.42/1.26 % SZS status Started for theBenchmark.p
% 3.42/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 3.42/1.26
% 3.42/1.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 3.42/1.26
% 3.42/1.26 % ------ iProver source info
% 3.42/1.26
% 3.42/1.26 % git: date: 2026-07-19 20:42:38 +0200
% 3.42/1.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 3.42/1.26 % git: non_committed_changes: false
% 3.42/1.26
% 3.42/1.26 % ------ Parsing...% successful
% 3.42/1.26
% 3.42/1.26
% 3.42/1.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 3.42/1.26
% 3.42/1.26 % ------ Preprocessing... sup_sim: 0 sf_s rm: 1 0s sf_e pe_s pe:1:0s pe_e sup_sim: 0 sf_s rm: 2 0s sf_e pe_s pe_e %
% 3.42/1.26
% 3.42/1.26 % ------ Preprocessing... gs_s sp: 2 0s gs_e snvd_s sp: 0 0s snvd_e %
% 3.42/1.26
% 3.42/1.26 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 3.42/1.26 % ------ Proving...
% 3.42/1.26 % ------ Problem Properties
% 3.42/1.26
% 3.42/1.26 %
% 3.42/1.26 % clauses 183
% 3.42/1.26 % conjectures 3
% 3.42/1.26 % EPR 58
% 3.42/1.26 % Horn 155
% 3.42/1.26 % unary 63
% 3.42/1.26 % binary 21
% 3.42/1.26 % lits 550
% 3.42/1.26 % lits eq 71
% 3.42/1.26 % fd_pure 0
% 3.42/1.26 % fd_pseudo 0
% 3.42/1.26 % fd_cond 16
% 3.42/1.26 % fd_pseudo_cond 14
% 3.42/1.26 % AC symbols 0
% 3.42/1.26
% 3.42/1.26 % ------ Schedule dynamic 5 is on
% 3.42/1.26
% 3.42/1.26 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 3.42/1.26
% 3.42/1.26
% 3.42/1.26 % ------
% 3.42/1.26 % Current options:
% 3.42/1.26 % ------
% 3.42/1.26
% 3.42/1.26
% 3.42/1.26 %
% 3.42/1.26
% 3.42/1.26 % ------ Proving...
% 3.42/1.26 %
% 3.42/1.26
% 3.42/1.26 % SZS status Unsatisfiable for theBenchmark.p
% 3.42/1.26
% 3.42/1.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 3.42/1.26
% 3.42/1.26
%------------------------------------------------------------------------------