%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : GEO206+3 : TPTP v9.3.1. Bugfixed v4.0.1.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n013.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 01:20:20 PM UTC 2026
% Result : Theorem 2.28s 1.26s
% Output : CNFRefutation 2.28s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 7
% Syntax : Number of formulae : 42 ( 15 unt; 1 def)
% Number of atoms : 86 ( 1 equ)
% Maximal formula atoms : 3 ( 2 avg)
% Number of connectives : 66 ( 29 ~; 21 |; 8 &)
% ( 2 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 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 : 8 ( 6 usr; 2 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 64 ( 0 sgn 58 !; 6 ?; 14 :)
% Comments :
%------------------------------------------------------------------------------
fof(f5,axiom,
! [X0,X1,X2] :
( distinct_lines(X0,X1)
=> ( distinct_lines(X1,X2)
| distinct_lines(X0,X2) ) ),
file('/export/starexec/sandbox/benchmark/Axioms/GEO006+0.ax',apart5) ).
fof(f15,axiom,
! [X0,X1] :
( distinct_lines(X0,X1)
=> convergent_lines(X0,X1) ),
file('/export/starexec/sandbox/benchmark/Axioms/GEO006+1.ax',p1) ).
fof(f16,axiom,
! [X0,X1] : ~ convergent_lines(parallel_through_point(X1,X0),X1),
file('/export/starexec/sandbox/benchmark/Axioms/GEO006+2.ax',cp1) ).
fof(f32,axiom,
! [X0,X1] :
( equal_lines(X0,X1)
<=> ~ distinct_lines(X0,X1) ),
file('/export/starexec/sandbox/benchmark/Axioms/GEO006+6.ax',ax2) ).
fof(f33,axiom,
! [X0,X1] :
( parallel_lines(X0,X1)
<=> ~ convergent_lines(X0,X1) ),
file('/export/starexec/sandbox/benchmark/Axioms/GEO006+6.ax',a3) ).
fof(f36,conjecture,
! [X0,X1,X2] :
( ( parallel_lines(X1,X2)
& incident_point_and_line(X0,X1) )
=> equal_lines(X1,parallel_through_point(X2,X0)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',con) ).
fof(f37,negated_conjecture,
~ ! [X0,X1,X2] :
( ( parallel_lines(X1,X2)
& incident_point_and_line(X0,X1) )
=> equal_lines(X1,parallel_through_point(X2,X0)) ),
inference(negated_conjecture,[status(cth)],[f36]) ).
fof(f39,plain,
! [X0,X1] :
( parallel_lines(X0,X1)
=> ~ convergent_lines(X0,X1) ),
inference(unused_predicate_definition_removal,[],[f33]) ).
fof(f40,plain,
! [X0,X1] :
( ~ distinct_lines(X0,X1)
=> equal_lines(X0,X1) ),
inference(unused_predicate_definition_removal,[],[f32]) ).
fof(f43,plain,
! [X0,X1,X2] :
( ~ distinct_lines(X0,X1)
| distinct_lines(X1,X2)
| distinct_lines(X0,X2) ),
inference(ennf_transformation,[],[f5]) ).
fof(f44,plain,
! [X0,X1,X2] :
( ~ distinct_lines(X0,X1)
| distinct_lines(X1,X2)
| distinct_lines(X0,X2) ),
inference(flattening,[],[f43]) ).
fof(f59,plain,
! [X0,X1] :
( ~ distinct_lines(X0,X1)
| convergent_lines(X0,X1) ),
inference(ennf_transformation,[],[f15]) ).
fof(f79,plain,
! [X0,X1] :
( distinct_lines(X0,X1)
| equal_lines(X0,X1) ),
inference(ennf_transformation,[],[f40]) ).
fof(f80,plain,
! [X0,X1] :
( ~ parallel_lines(X0,X1)
| ~ convergent_lines(X0,X1) ),
inference(ennf_transformation,[],[f39]) ).
fof(f82,plain,
? [X0,X1,X2] :
( parallel_lines(X1,X2)
& incident_point_and_line(X0,X1)
& ~ equal_lines(X1,parallel_through_point(X2,X0)) ),
inference(ennf_transformation,[],[f37]) ).
fof(f83,plain,
? [X0,X1,X2] :
( parallel_lines(X1,X2)
& incident_point_and_line(X0,X1)
& ~ equal_lines(X1,parallel_through_point(X2,X0)) ),
inference(flattening,[],[f82]) ).
fof(f84,plain,
( parallel_lines(sK1,sK2)
& incident_point_and_line(sK0,sK1)
& ~ equal_lines(sK1,parallel_through_point(sK2,sK0)) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0,sK1,sK2]),skolemize(X0,sK0),skolemize(X1,sK1),skolemize(X2,sK2)],[f83]) ).
fof(f89,plain,
! [X2,X0,X1] :
( ~ distinct_lines(X0,X1)
| distinct_lines(X1,X2)
| distinct_lines(X0,X2) ),
inference(cnf_transformation,[],[f44]) ).
fof(f99,plain,
! [X0,X1] :
( ~ distinct_lines(X0,X1)
| convergent_lines(X0,X1) ),
inference(cnf_transformation,[],[f59]) ).
fof(f100,plain,
! [X0,X1] : ~ convergent_lines(parallel_through_point(X1,X0),X1),
inference(cnf_transformation,[],[f16]) ).
fof(f121,plain,
! [X0,X1] :
( distinct_lines(X0,X1)
| equal_lines(X0,X1) ),
inference(cnf_transformation,[],[f79]) ).
fof(f122,plain,
! [X0,X1] :
( ~ parallel_lines(X0,X1)
| ~ convergent_lines(X0,X1) ),
inference(cnf_transformation,[],[f80]) ).
fof(f124,plain,
parallel_lines(sK1,sK2),
inference(cnf_transformation,[],[f84]) ).
fof(f126,plain,
~ equal_lines(sK1,parallel_through_point(sK2,sK0)),
inference(cnf_transformation,[],[f84]) ).
tcf(c_53,plain,
! [X0: $i,X1: $i,X2: $i] :
( distinct_lines(X1,X2)
| distinct_lines(X0,X2)
| ~ distinct_lines(X0,X1) ),
inference(cnf_transformation,[],[f89]) ).
tcf(c_63,plain,
! [X0: $i,X1: $i] :
( convergent_lines(X0,X1)
| ~ distinct_lines(X0,X1) ),
inference(cnf_transformation,[],[f99]) ).
tcf(c_64,plain,
! [X0: $i,X1: $i] : ~ convergent_lines(parallel_through_point(X0,X1),X0),
inference(cnf_transformation,[],[f100]) ).
tcf(c_85,plain,
! [X0: $i,X1: $i] :
( equal_lines(X0,X1)
| distinct_lines(X0,X1) ),
inference(cnf_transformation,[],[f121]) ).
tcf(c_86,plain,
! [X0: $i,X1: $i] :
( ~ parallel_lines(X0,X1)
| ~ convergent_lines(X0,X1) ),
inference(cnf_transformation,[],[f122]) ).
tcf(c_88,negated_conjecture,
~ equal_lines(sK1,parallel_through_point(sK2,sK0)),
inference(cnf_transformation,[],[f126]) ).
tcf(c_90,negated_conjecture,
parallel_lines(sK1,sK2),
inference(cnf_transformation,[],[f124]) ).
tcf(c_305,plain,
distinct_lines(sK1,parallel_through_point(sK2,sK0)),
inference(resolution,[status(thm)],[c_85,c_88]) ).
tcf(c_310,plain,
~ convergent_lines(sK1,sK2),
inference(resolution,[status(thm)],[c_86,c_90]) ).
tcf(c_476,definition,
iPr_def_10 = parallel_through_point(sK2,sK0),
introduced(definition,[new_symbols(definition,[iPr_def_10])],[]) ).
tcf(c_478,plain,
~ convergent_lines(sK1,sK2),
inference(demodulation,[status(thm)],[c_310]) ).
tcf(c_479,plain,
distinct_lines(sK1,iPr_def_10),
inference(demodulation,[status(thm)],[c_305,c_476]) ).
tcf(c_897,plain,
~ convergent_lines(iPr_def_10,sK2),
inference(superposition,[status(thm)],[c_476,c_64]) ).
tcf(c_920,plain,
! [X0: $i] :
( distinct_lines(iPr_def_10,X0)
| distinct_lines(sK1,X0) ),
inference(superposition,[status(thm)],[c_479,c_53]) ).
tcf(c_930,plain,
! [X0: $i] :
( convergent_lines(sK1,X0)
| distinct_lines(iPr_def_10,X0) ),
inference(superposition,[status(thm)],[c_920,c_63]) ).
tcf(c_944,plain,
! [X0: $i] :
( convergent_lines(iPr_def_10,X0)
| convergent_lines(sK1,X0) ),
inference(superposition,[status(thm)],[c_930,c_63]) ).
tcf(c_997,plain,
convergent_lines(iPr_def_10,sK2),
inference(superposition,[status(thm)],[c_944,c_478]) ).
tcf(c_998,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[c_997,c_897]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GEO206+3 : TPTP v9.3.1. Bugfixed v4.0.1.
% 0.00/0.03 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.07/0.34 % Computer : n013.cluster.edu
% 0.07/0.34 % Model : x86_64 x86_64
% 0.07/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.07/0.34 % Memory : 8046.5625MB
% 0.07/0.34 % OS : Linux 6.8.0-71-generic
% 0.07/0.35 % CPULimit : 300
% 0.07/0.35 % WCLimit : 300
% 0.07/0.35 % DateTime : Wed Sep 23 11:28:36 UTC 2026
% 0.07/0.35 % CPUTime :
% 0.07/0.35 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.38 Running first-order theorem proving
% 0.12/0.38 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
% 0.12/0.39
% 0.12/0.39 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.39
% 0.12/0.39 % Detected problem language: tptp
% 0.12/0.41 % Proving...
% 2.28/1.26 % SZS status Started for theBenchmark.p
% 2.28/1.26 % SZS status Theorem for theBenchmark.p
% 2.28/1.26
% 2.28/1.26 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 2.28/1.26
% 2.28/1.26 % ------ iProver source info
% 2.28/1.26
% 2.28/1.26 % git: date: 2026-07-19 20:42:38 +0200
% 2.28/1.26 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 2.28/1.26 % git: non_committed_changes: false
% 2.28/1.26
% 2.28/1.26 % ------ Parsing...
% 2.28/1.26 % ------ Clausification by vclausify_rel & Parsing by iProver...%
% 2.28/1.26
% 2.28/1.26 % ------ Preprocessing... sf_s rm: 4 0s sf_e pe_s pe:1:0s pe:2:0s pe_e sf_s rm: 0 0s sf_e pe_s pe_e %
% 2.28/1.26
% 2.28/1.26 % ------ Preprocessing... gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e %
% 2.28/1.26
% 2.28/1.26 % ------ Preprocessing... sf_s rm: 1 0s sf_e sf_s rm: 0 0s sf_e
% 2.28/1.26 % ------ Proving...
% 2.28/1.26 % ------ Problem Properties
% 2.28/1.26
% 2.28/1.26 %
% 2.28/1.26 % clauses 32
% 2.28/1.26 % conjectures 0
% 2.28/1.26 % EPR 23
% 2.28/1.26 % Horn 16
% 2.28/1.26 % unary 11
% 2.28/1.26 % binary 6
% 2.28/1.26 % lits 79
% 2.28/1.26 % lits eq 1
% 2.28/1.26 % fd_pure 0
% 2.28/1.26 % fd_pseudo 0
% 2.28/1.26 % fd_cond 0
% 2.28/1.26 % fd_pseudo_cond 0
% 2.28/1.26 % AC symbols 0
% 2.28/1.26
% 2.28/1.26 % ------ Schedule dynamic 5 is on
% 2.28/1.26
% 2.28/1.26 % ------ no conjectures: strip conj schedule
% 2.28/1.26
% 2.28/1.26 % ------ Input Options "--resolution_flag false --inst_lit_sel_side none" stripped conjectures Time Limit: 10.
% 2.28/1.26
% 2.28/1.26
% 2.28/1.26 % ------
% 2.28/1.26 % Current options:
% 2.28/1.26 % ------
% 2.28/1.26
% 2.28/1.26
% 2.28/1.26 %
% 2.28/1.26
% 2.28/1.26 % ------ Proving...
% 2.28/1.26 %
% 2.28/1.26
% 2.28/1.26 % SZS status Theorem for theBenchmark.p
% 2.28/1.26
% 2.28/1.26 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 2.28/1.26
% 2.28/1.26
%------------------------------------------------------------------------------