%------------------------------------------------------------------------------
% File : iProver---3.9.4
% Problem : PUZ003-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% Computer : n019.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 02:32:39 PM UTC 2026
% Result : Unsatisfiable 0.80s 1.16s
% Output : CNFRefutation 0.80s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 8
% Syntax : Number of formulae : 27 ( 17 unt; 0 def)
% Number of atoms : 46 ( 0 equ)
% Maximal formula atoms : 4 ( 1 avg)
% Number of connectives : 40 ( 21 ~; 19 |; 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 : 3 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 12 ( 0 sgn 12 !; 0 ?; 8 :)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [X0,X1] :
( shaved(members,X0)
| ~ shaved(X0,X1)
| ~ member(X1)
| ~ member(X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',one_shaved_then_all_shaved) ).
fof(f2,axiom,
! [X0,X1] :
( shaved(X1,X0)
| ~ member(X1)
| ~ shaved(members,X0) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',all_shaved_then_one_shaved) ).
fof(f3,axiom,
member(guido),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',guido) ).
fof(f4,axiom,
member(lorenzo),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',lorenzo) ).
fof(f5,axiom,
member(petruchio),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',petruchio) ).
fof(f6,axiom,
member(cesare),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',cesare) ).
fof(f7,axiom,
shaved(guido,cesare),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',guido_has_shaved_cesare) ).
fof(f8,negated_conjecture,
~ shaved(petruchio,lorenzo),
file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_petruchio_has_shaved_lorenzo) ).
tcf(c_57,plain,
! [X0: $i,X1: $i] :
( shaved(members,X0)
| ~ member(X1)
| ~ member(X0)
| ~ shaved(X0,X1) ),
inference(cnf_transformation,[],[f1]) ).
tcf(c_58,plain,
! [X0: $i,X1: $i] :
( shaved(X1,X0)
| ~ member(X1)
| ~ shaved(members,X0) ),
inference(cnf_transformation,[],[f2]) ).
tcf(c_59,plain,
member(guido),
inference(cnf_transformation,[],[f3]) ).
tcf(c_60,plain,
member(lorenzo),
inference(cnf_transformation,[],[f4]) ).
tcf(c_61,plain,
member(petruchio),
inference(cnf_transformation,[],[f5]) ).
tcf(c_62,plain,
member(cesare),
inference(cnf_transformation,[],[f6]) ).
tcf(c_63,plain,
shaved(guido,cesare),
inference(cnf_transformation,[],[f7]) ).
tcf(c_64,negated_conjecture,
~ shaved(petruchio,lorenzo),
inference(cnf_transformation,[],[f8]) ).
tcf(c_67,plain,
! [X0: $i] :
( shaved(lorenzo,X0)
| ~ shaved(members,X0) ),
inference(resolution,[status(thm)],[c_58,c_60]) ).
tcf(c_69,plain,
! [X0: $i] :
( shaved(petruchio,X0)
| ~ shaved(members,X0) ),
inference(resolution,[status(thm)],[c_58,c_61]) ).
tcf(c_71,plain,
! [X0: $i] :
( shaved(members,lorenzo)
| ~ member(X0)
| ~ shaved(lorenzo,X0) ),
inference(resolution,[status(thm)],[c_57,c_60]) ).
tcf(c_77,plain,
( shaved(members,lorenzo)
| ~ shaved(lorenzo,guido) ),
inference(resolution,[status(thm)],[c_59,c_71]) ).
tcf(c_78,plain,
! [X0: $i] :
( shaved(members,guido)
| ~ member(X0)
| ~ shaved(guido,X0) ),
inference(resolution,[status(thm)],[c_59,c_57]) ).
tcf(c_79,plain,
( shaved(members,guido)
| ~ member(cesare)
| ~ shaved(guido,cesare) ),
inference(instantiation,[status(thm)],[c_78]) ).
tcf(c_89,plain,
shaved(members,guido),
inference(global_subsumption_just,[status(thm)],[c_78,c_62,c_63,c_79]) ).
tcf(c_94,plain,
shaved(lorenzo,guido),
inference(resolution,[status(thm)],[c_89,c_67]) ).
tcf(c_109,plain,
shaved(members,lorenzo),
inference(resolution,[status(thm)],[c_94,c_77]) ).
tcf(c_125,plain,
shaved(petruchio,lorenzo),
inference(resolution,[status(thm)],[c_109,c_69]) ).
tcf(c_127,plain,
$false,
inference(prop_impl_just,[status(thm)],[c_125,c_64]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ003-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.05 % Command : run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.38 % Computer : n019.cluster.edu
% 0.12/0.38 % Model : x86_64 x86_64
% 0.12/0.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.38 % Memory : 8046.5625MB
% 0.12/0.38 % OS : Linux 6.8.0-71-generic
% 0.12/0.38 % CPULimit : 300
% 0.12/0.38 % WCLimit : 300
% 0.12/0.38 % DateTime : Thu Sep 24 06:36:19 UTC 2026
% 0.12/0.38 % CPUTime :
% 0.12/0.38 Running run_iprover 300 /export/starexec/sandbox/benchmark/theBenchmark.p THM
% 0.12/0.42 Running EPR theorem proving
% 0.12/0.42 Running: /export/starexec/sandbox/solver/bin/iproveropt-multi-core.sh -d -n -l tptp -s epr_schedule -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.44
% 0.12/0.44 % ======== iProver multi-core TPTP/SMT =========
% 0.12/0.44
% 0.12/0.44 % Detected problem language: tptp
% 0.12/0.45 % Proving...
% 0.80/1.16 % SZS status Started for theBenchmark.p
% 0.80/1.16 % SZS status Unsatisfiable for theBenchmark.p
% 0.80/1.16
% 0.80/1.16 %---------------- iProver v3.9.4 (pre CASC 2026/SMT-COMP 2026) ----------------%
% 0.80/1.16
% 0.80/1.16 % ------ iProver source info
% 0.80/1.16
% 0.80/1.16 % git: date: 2026-07-19 20:42:38 +0200
% 0.80/1.16 % git: sha1: 804e7d636a263075307957e923b7a22a4035de61
% 0.80/1.16 % git: non_committed_changes: false
% 0.80/1.16
% 0.80/1.16 % ------ Parsing...% successful
% 0.80/1.16
% 0.80/1.16
% 0.80/1.16 % ------ Clausification by vclausify_rel & Parsing by iProver...% ------ preprocesses with Option_epr_horn
% 0.80/1.16 %
% 0.80/1.16
% 0.80/1.16 % ------ Preprocessing... sf_s rm: 0 0s sf_e %
% 0.80/1.16
% 0.80/1.16 % ------ Preprocessing...% ------ preprocesses with Option_epr_horn
% 0.80/1.16 gs_s sp: 0 0s gs_e snvd_s sp: 0 0s snvd_e
% 0.80/1.16 % ------ Proving...
% 0.80/1.16 % ------ Problem Properties
% 0.80/1.16
% 0.80/1.16 %
% 0.80/1.16 % clauses 8
% 0.80/1.16 % conjectures 1
% 0.80/1.16 % EPR 8
% 0.80/1.16 % Horn 8
% 0.80/1.16 % unary 6
% 0.80/1.16 % binary 0
% 0.80/1.16 % lits 13
% 0.80/1.16 % lits eq 0
% 0.80/1.16 % fd_pure 0
% 0.80/1.16 % fd_pseudo 0
% 0.80/1.16 % fd_cond 0
% 0.80/1.16 % fd_pseudo_cond 0
% 0.80/1.16 % AC symbols 0
% 0.80/1.16
% 0.80/1.16 % ------ Schedule EPR Horn non eq is on
% 0.80/1.16
% 0.80/1.16 % ------ no equalities: superposition off
% 0.80/1.16
% 0.80/1.16 % ------ Option_epr_horn Time Limit: Unbounded
% 0.80/1.16
% 0.80/1.16
% 0.80/1.16 % ------
% 0.80/1.16 % Current options:
% 0.80/1.16 % ------
% 0.80/1.16
% 0.80/1.16
% 0.80/1.16 %
% 0.80/1.16
% 0.80/1.16 % ------ Proving...
% 0.80/1.16 %
% 0.80/1.16
% 0.80/1.16 % SZS status Unsatisfiable for theBenchmark.p
% 0.80/1.16
% 0.80/1.16 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
% 0.80/1.16
% 0.80/1.16
%------------------------------------------------------------------------------