%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : SWV412+1 : TPTP v9.3.1. Released v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n005.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 03:17:34 PM UTC 2026
% Result : Theorem 2.13s 1.16s
% Output : CNFRefutation 2.13s
% Verified :
% SZS Type : Refutation
% Derivation depth : 10
% Number of leaves : 3
% Syntax : Number of formulae : 23 ( 11 unt; 1 def)
% Number of atoms : 53 ( 1 equ)
% Maximal formula atoms : 4 ( 2 avg)
% Number of connectives : 44 ( 17 ~; 10 |; 14 &)
% ( 0 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 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 : 5 ( 3 usr; 2 prp; 0-3 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 37 ( 0 sgn 29 !; 8 ?; 5 :)
% Comments :
%------------------------------------------------------------------------------
fof(f19,axiom,
! [X0,X1,X2,X3] :
( ( strictly_less_than(X2,X3)
& pair_in_list(X0,X1,X2) )
=> pair_in_list(update_slb(X0,X3),X1,X3) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',l48_li3839) ).
fof(f20,conjecture,
! [X0,X1,X2,X3] :
( ( strictly_less_than(X2,X3)
& strictly_less_than(X1,X3)
& pair_in_list(X0,X1,X2) )
=> pair_in_list(update_slb(X0,X3),X1,X3) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',l48_co) ).
fof(f21,negated_conjecture,
~ ! [X0,X1,X2,X3] :
( ( strictly_less_than(X2,X3)
& strictly_less_than(X1,X3)
& pair_in_list(X0,X1,X2) )
=> pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(negated_conjecture,[status(cth)],[f20]) ).
fof(f30,plain,
! [X0,X1,X2,X3] :
( ~ strictly_less_than(X2,X3)
| ~ pair_in_list(X0,X1,X2)
| pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(ennf_transformation,[],[f19]) ).
fof(f31,plain,
! [X0,X1,X2,X3] :
( ~ strictly_less_than(X2,X3)
| ~ pair_in_list(X0,X1,X2)
| pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(flattening,[],[f30]) ).
fof(f32,plain,
? [X0,X1,X2,X3] :
( strictly_less_than(X2,X3)
& strictly_less_than(X1,X3)
& pair_in_list(X0,X1,X2)
& ~ pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(ennf_transformation,[],[f21]) ).
fof(f33,plain,
? [X0,X1,X2,X3] :
( strictly_less_than(X2,X3)
& strictly_less_than(X1,X3)
& pair_in_list(X0,X1,X2)
& ~ pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(flattening,[],[f32]) ).
fof(f40,plain,
( strictly_less_than(sK2,sK3)
& strictly_less_than(sK1,sK3)
& pair_in_list(sK0,sK1,sK2)
& ~ pair_in_list(update_slb(sK0,sK3),sK1,sK3) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2,sK3]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2),skolemize(X3,sK3)],[f33]) ).
fof(f66,plain,
! [X2,X3,X0,X1] :
( ~ strictly_less_than(X2,X3)
| ~ pair_in_list(X0,X1,X2)
| pair_in_list(update_slb(X0,X3),X1,X3) ),
inference(cnf_transformation,[],[f31]) ).
fof(f67,plain,
strictly_less_than(sK2,sK3),
inference(cnf_transformation,[],[f40]) ).
fof(f69,plain,
pair_in_list(sK0,sK1,sK2),
inference(cnf_transformation,[],[f40]) ).
fof(f70,plain,
~ pair_in_list(update_slb(sK0,sK3),sK1,sK3),
inference(cnf_transformation,[],[f40]) ).
tcf(c_74,plain,
! [X0: $i,X1: $i,X2: $i,X3: $i] :
( pair_in_list(update_slb(X0,X3),X1,X3)
| ~ strictly_less_than(X2,X3)
| ~ pair_in_list(X0,X1,X2) ),
inference(cnf_transformation,[],[f66]) ).
tcf(c_75,negated_conjecture,
~ pair_in_list(update_slb(sK0,sK3),sK1,sK3),
inference(cnf_transformation,[],[f70]) ).
tcf(c_76,negated_conjecture,
pair_in_list(sK0,sK1,sK2),
inference(cnf_transformation,[],[f69]) ).
tcf(c_78,negated_conjecture,
strictly_less_than(sK2,sK3),
inference(cnf_transformation,[],[f67]) ).
tcf(c_788,definition,
iPr_def_10 = update_slb(sK0,sK3),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_789,negated_conjecture,
strictly_less_than(sK2,sK3),
inference(demodulation,[status(thm)],[c_78]) ).
tcf(c_791,negated_conjecture,
pair_in_list(sK0,sK1,sK2),
inference(demodulation,[status(thm)],[c_76]) ).
tcf(c_792,negated_conjecture,
~ pair_in_list(iPr_def_10,sK1,sK3),
inference(demodulation,[status(thm)],[c_75,c_788]) ).
tcf(c_1252,plain,
! [X0: $i] :
( pair_in_list(update_slb(sK0,X0),sK1,X0)
| ~ strictly_less_than(sK2,X0) ),
inference(superposition,[status(thm)],[c_791,c_74]) ).
tcf(c_1355,plain,
( pair_in_list(iPr_def_10,sK1,sK3)
| ~ strictly_less_than(sK2,sK3) ),
inference(superposition,[status(thm)],[c_788,c_1252]) ).
tcf(c_1357,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_1355,c_792,c_789]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWV412+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.09/0.36 % Computer : n005.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 19:30:47 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.13/0.40 Running first-order theorem proving
% 0.13/0.40 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
% 0.13/0.41
% 0.13/0.41 % ======== iProver multi-core TPTP/SMT =========
% 0.13/0.41
% 0.13/0.41 % Detected problem language: tptp
% 0.13/0.42 % Proving...
% 2.13/1.16 % SZS status Started for theBenchmark.p
% 2.13/1.16 % SZS status Theorem for theBenchmark.p
% 2.13/1.16
% 2.13/1.16 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.13/1.16
% 2.13/1.16 % ------ iProver source info
% 2.13/1.16
% 2.13/1.16 % git: date: 2026-07-19 20:42:38 +0200
% 2.13/1.16 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.13/1.16 % git: non_committed_changes: false
% 2.13/1.16
% 2.13/1.16 % ------ Parsing...
% 2.13/1.16 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 2.13/1.16
% 2.13/1.16 % ------ 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:1:0s pe_e sup_sim: 0 sf_s rm: 3 0s sf_e pe_s pe_e %
% 2.13/1.16
% 2.13/1.16 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 2.13/1.16
% 2.13/1.16 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 2.13/1.16 % ------ Proving...
% 2.13/1.16 % ------ Problem Properties
% 2.13/1.16
% 2.13/1.16 %
% 2.13/1.16 % clauses 27
% 2.13/1.16 % conjectures 4
% 2.13/1.16 % EPR 10
% 2.13/1.16 % Horn 20
% 2.13/1.16 % unary 15
% 2.13/1.16 % binary 5
% 2.13/1.16 % lits 46
% 2.13/1.16 % lits eq 14
% 2.13/1.16 % fd_pure 0
% 2.13/1.16 % fd_pseudo 0
% 2.13/1.16 % fd_cond 0
% 2.13/1.16 % fd_pseudo_cond 5
% 2.13/1.16 % AC symbols 0
% 2.13/1.16
% 2.13/1.16 % ------ Schedule dynamic 5 is on
% 2.13/1.16
% 2.13/1.16 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" Time Limit: 10.
% 2.13/1.16
% 2.13/1.16
% 2.13/1.16 % ------
% 2.13/1.16 % Current options:
% 2.13/1.16 % ------
% 2.13/1.16
% 2.13/1.16
% 2.13/1.16 %
% 2.13/1.16
% 2.13/1.16 % ------ Proving...
% 2.13/1.16 %
% 2.13/1.16
% 2.13/1.16 % SZS status Theorem for theBenchmark.p
% 2.13/1.16
% 2.13/1.16 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.13/1.16
% 2.13/1.16
%------------------------------------------------------------------------------