%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : PUZ019-1 : TPTP v9.3.1. Bugfixed v5.1.0.
% Transfm : none
% Format : tptp:raw
% Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% Computer : n001.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 : Sun Sep 27 08:21:07 AM UTC 2026
% Result : Unsatisfiable 4.22s 2.63s
% Output : Refutation 4.49s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 64
% Syntax : Number of formulae : 129 ( 89 unt; 0 typ; 0 def)
% Number of atoms : 211 ( 0 equ; 0 cnn)
% Maximal formula atoms : 8 ( 1 avg)
% Number of connectives : 606 ( 138 ~; 82 |; 0 &; 386 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 19 ( 5 avg)
% Number of types : 2 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 20 ( 19 usr; 13 con; 0-2 aty)
% Number of variables : 80 ( 0 ^; 80 !; 0 ?; 80 :)
% Comments :
%------------------------------------------------------------------------------
thf(has_job_decl,type,
has_job: $i > $i > $o ).
thf(chef_decl,type,
chef: $i ).
thf(guard_decl,type,
guard: $i ).
thf(nurse_decl,type,
nurse: $i ).
thf(operator_decl,type,
operator: $i ).
thf(police_decl,type,
police: $i ).
thf(teacher_decl,type,
teacher: $i ).
thf(actor_decl,type,
actor: $i ).
thf(boxer_decl,type,
boxer: $i ).
thf(equal_jobs_decl,type,
equal_jobs: $i > $i > $o ).
thf(equal_people_decl,type,
equal_people: $i > $i > $o ).
thf(roberta_decl,type,
roberta: $i ).
thf(steve_decl,type,
steve: $i ).
thf(husband_decl,type,
husband: $i > $i > $o ).
thf(male_decl,type,
male: $i > $o ).
thf(female_decl,type,
female: $i > $o ).
thf(pete_decl,type,
pete: $i ).
thf(educated_decl,type,
educated: $i > $o ).
thf(thelma_decl,type,
thelma: $i ).
thf(29,axiom,
~ ( teacher @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_teacher) ).
thf(115,plain,
~ ( teacher @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[29]) ).
thf(48,axiom,
! [A: $i] :
( ( A @ female )
| ~ ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_is_female) ).
thf(153,plain,
! [A: $i] :
( ( A @ female )
| ~ ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[48]) ).
thf(64,axiom,
! [A: $i] :
( ( A @ educated )
| ~ ( nurse @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_is_educated) ).
thf(185,plain,
! [A: $i] :
( ( A @ educated )
| ~ ( nurse @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[64]) ).
thf(8,axiom,
pete @ male,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',pete_is_male) ).
thf(78,plain,
pete @ male,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).
thf(30,axiom,
~ ( teacher @ ( operator @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operator_not_teacher) ).
thf(117,plain,
~ ( teacher @ ( operator @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[30]) ).
thf(26,axiom,
~ ( actor @ ( nurse @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_not_actor) ).
thf(109,plain,
~ ( actor @ ( nurse @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[26]) ).
thf(19,axiom,
~ ( steve @ ( pete @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',pete_not_steve) ).
thf(95,plain,
~ ( steve @ ( pete @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[19]) ).
thf(21,axiom,
! [A: $i] :
( ( A @ male )
| ~ ( nurse @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_is_male) ).
thf(99,plain,
! [A: $i] :
( ( A @ male )
| ~ ( nurse @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[21]) ).
thf(3,axiom,
~ ( steve @ ( roberta @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_not_steve) ).
thf(69,plain,
~ ( steve @ ( roberta @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).
thf(22,axiom,
~ ( teacher @ ( police @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',police_not_teacher) ).
thf(101,plain,
~ ( teacher @ ( police @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[22]) ).
thf(15,axiom,
~ ( steve @ ( thelma @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thelma_not_steve) ).
thf(88,plain,
~ ( steve @ ( thelma @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).
thf(34,axiom,
! [B: $i,A: $i] :
( ( B @ ( A @ husband ) )
| ~ ( operator @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',husband_of_chef_is_operator1) ).
thf(125,plain,
! [B: $i,A: $i] :
( ( B @ ( A @ husband ) )
| ~ ( operator @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[34]) ).
thf(50,axiom,
~ ( teacher @ ( nurse @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_not_teacher) ).
thf(157,plain,
~ ( teacher @ ( nurse @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[50]) ).
thf(61,axiom,
! [A: $i] :
( ( A @ ( steve @ has_job ) )
| ( A @ ( pete @ has_job ) )
| ( A @ ( thelma @ has_job ) )
| ( A @ ( roberta @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',every_job_is_used) ).
thf(179,plain,
! [A: $i] :
( ( A @ ( steve @ has_job ) )
| ( A @ ( pete @ has_job ) )
| ( A @ ( thelma @ has_job ) )
| ( A @ ( roberta @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[61]) ).
thf(32,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( D @ ( C @ equal_jobs ) )
| ( D @ ( B @ equal_jobs ) )
| ( C @ ( B @ equal_jobs ) )
| ~ ( D @ ( A @ has_job ) )
| ~ ( C @ ( A @ has_job ) )
| ~ ( B @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',each_has_maximum_of_two_jobs) ).
thf(121,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( D @ ( C @ equal_jobs ) )
| ( D @ ( B @ equal_jobs ) )
| ( C @ ( B @ equal_jobs ) )
| ~ ( D @ ( A @ has_job ) )
| ~ ( C @ ( A @ has_job ) )
| ~ ( B @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[32]) ).
thf(13,axiom,
~ ( thelma @ ( pete @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',pete_not_thelma) ).
thf(84,plain,
~ ( thelma @ ( pete @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).
thf(45,axiom,
~ ( teacher @ ( boxer @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',boxer_not_teacher) ).
thf(147,plain,
~ ( teacher @ ( boxer @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[45]) ).
thf(38,axiom,
~ ( teacher @ ( actor @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',actor_not_teacher) ).
thf(133,plain,
~ ( teacher @ ( actor @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[38]) ).
thf(40,axiom,
~ ( boxer @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_boxer) ).
thf(137,plain,
~ ( boxer @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[40]) ).
thf(54,axiom,
~ ( boxer @ ( operator @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operator_not_boxer) ).
thf(165,plain,
~ ( boxer @ ( operator @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[54]) ).
thf(17,axiom,
~ ( pete @ ( roberta @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_not_pete) ).
thf(92,plain,
~ ( pete @ ( roberta @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).
thf(1,negated_conjecture,
! [H: $i,G: $i,F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
( ~ ( boxer @ ( H @ has_job ) )
| ~ ( actor @ ( G @ has_job ) )
| ~ ( teacher @ ( F @ has_job ) )
| ~ ( police @ ( E @ has_job ) )
| ~ ( operator @ ( D @ has_job ) )
| ~ ( nurse @ ( C @ has_job ) )
| ~ ( guard @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',find_who_has_each_job) ).
thf(65,plain,
! [H: $i,G: $i,F: $i,E: $i,D: $i,C: $i,B: $i,A: $i] :
( ~ ( boxer @ ( H @ has_job ) )
| ~ ( actor @ ( G @ has_job ) )
| ~ ( teacher @ ( F @ has_job ) )
| ~ ( police @ ( E @ has_job ) )
| ~ ( operator @ ( D @ has_job ) )
| ~ ( nurse @ ( C @ has_job ) )
| ~ ( guard @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).
thf(20,axiom,
! [A: $i] :
( ( A @ female )
| ( A @ male ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everyone_male_or_female) ).
thf(97,plain,
! [A: $i] :
( ( A @ female )
| ( A @ male ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[20]) ).
thf(56,axiom,
! [A: $i] :
( ~ ( police @ ( A @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_is_not_also_police) ).
thf(169,plain,
! [A: $i] :
( ~ ( police @ ( A @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[56]) ).
thf(42,axiom,
~ ( police @ ( nurse @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_not_police) ).
thf(141,plain,
~ ( police @ ( nurse @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[42]) ).
thf(58,axiom,
~ ( boxer @ ( roberta @ has_job ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_is_not_boxer) ).
thf(173,plain,
~ ( boxer @ ( roberta @ has_job ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[58]) ).
thf(36,axiom,
! [B: $i,A: $i] :
( ~ ( B @ ( A @ husband ) )
| ( operator @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',husband_of_chef_is_operator2) ).
thf(129,plain,
! [B: $i,A: $i] :
( ~ ( B @ ( A @ husband ) )
| ( operator @ ( B @ has_job ) )
| ~ ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[36]) ).
thf(5,axiom,
! [B: $i,A: $i] :
( ( B @ male )
| ~ ( B @ ( A @ husband ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',husband_is_male) ).
thf(73,plain,
! [B: $i,A: $i] :
( ( B @ male )
| ~ ( B @ ( A @ husband ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).
thf(24,axiom,
~ ( police @ ( operator @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operator_not_police) ).
thf(105,plain,
~ ( police @ ( operator @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[24]) ).
thf(52,axiom,
~ ( actor @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_actor) ).
thf(161,plain,
~ ( actor @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[52]) ).
thf(46,axiom,
~ ( teacher @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_teacher) ).
thf(149,plain,
~ ( teacher @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[46]) ).
thf(4,axiom,
! [B: $i,A: $i] :
( ( A @ ( B @ equal_people ) )
| ~ ( B @ ( A @ equal_people ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',symmetry_of_equal_people) ).
thf(71,plain,
! [B: $i,A: $i] :
( ( A @ ( B @ equal_people ) )
| ~ ( B @ ( A @ equal_people ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).
thf(62,axiom,
! [A: $i] :
( ( boxer @ ( A @ has_job ) )
| ( actor @ ( A @ has_job ) )
| ( teacher @ ( A @ has_job ) )
| ( police @ ( A @ has_job ) )
| ( operator @ ( A @ has_job ) )
| ( nurse @ ( A @ has_job ) )
| ( guard @ ( A @ has_job ) )
| ( chef @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',everyone_works) ).
thf(181,plain,
! [A: $i] :
( ( boxer @ ( A @ has_job ) )
| ( actor @ ( A @ has_job ) )
| ( teacher @ ( A @ has_job ) )
| ( police @ ( A @ has_job ) )
| ( operator @ ( A @ has_job ) )
| ( nurse @ ( A @ has_job ) )
| ( guard @ ( A @ has_job ) )
| ( chef @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[62]) ).
thf(14,axiom,
! [B: $i,A: $i] :
( ( A @ female )
| ~ ( B @ ( A @ husband ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',wife_is_female) ).
thf(86,plain,
! [B: $i,A: $i] :
( ( A @ female )
| ~ ( B @ ( A @ husband ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).
thf(51,axiom,
~ ( police @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_police) ).
thf(159,plain,
~ ( police @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[51]) ).
thf(28,axiom,
~ ( actor @ ( operator @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',operator_not_actor) ).
thf(113,plain,
~ ( actor @ ( operator @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[28]) ).
thf(7,axiom,
! [A: $i] :
( ~ ( A @ female )
| ~ ( A @ male ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',males_are_not_female) ).
thf(76,plain,
! [A: $i] :
( ~ ( A @ female )
| ~ ( A @ male ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).
thf(23,axiom,
~ ( boxer @ ( police @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',police_not_boxer) ).
thf(103,plain,
~ ( boxer @ ( police @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[23]) ).
thf(49,axiom,
~ ( boxer @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_boxer) ).
thf(155,plain,
~ ( boxer @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[49]) ).
thf(39,axiom,
~ ( police @ ( roberta @ has_job ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_is_not_police) ).
thf(135,plain,
~ ( police @ ( roberta @ has_job ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[39]) ).
thf(10,axiom,
~ ( pete @ educated ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',pete_is_not_educated) ).
thf(80,plain,
~ ( pete @ educated ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).
thf(55,axiom,
~ ( operator @ ( nurse @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_not_operator) ).
thf(167,plain,
~ ( operator @ ( nurse @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[55]) ).
thf(33,axiom,
~ ( actor @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_actor) ).
thf(123,plain,
~ ( actor @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[33]) ).
thf(44,axiom,
~ ( operator @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_operator) ).
thf(145,plain,
~ ( operator @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[44]) ).
thf(2,axiom,
! [B: $i,A: $i] :
( ( A @ ( B @ equal_jobs ) )
| ~ ( B @ ( A @ equal_jobs ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',symmetry_of_equal_jobs) ).
thf(67,plain,
! [B: $i,A: $i] :
( ( A @ ( B @ equal_jobs ) )
| ~ ( B @ ( A @ equal_jobs ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(60,axiom,
~ ( guard @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_guard) ).
thf(177,plain,
~ ( guard @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[60]) ).
thf(35,axiom,
! [A: $i] :
( ( A @ educated )
| ~ ( police @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',police_is_educated) ).
thf(127,plain,
! [A: $i] :
( ( A @ educated )
| ~ ( police @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[35]) ).
thf(59,axiom,
~ ( boxer @ ( actor @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',actor_not_boxer) ).
thf(175,plain,
~ ( boxer @ ( actor @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[59]) ).
thf(43,axiom,
~ ( police @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_police) ).
thf(143,plain,
~ ( police @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[43]) ).
thf(57,axiom,
~ ( boxer @ ( nurse @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',nurse_not_boxer) ).
thf(171,plain,
~ ( boxer @ ( nurse @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[57]) ).
thf(41,axiom,
~ ( chef @ ( roberta @ has_job ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_is_not_chef) ).
thf(139,plain,
~ ( chef @ ( roberta @ has_job ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[41]) ).
thf(6,axiom,
roberta @ female,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_is_female) ).
thf(75,plain,
roberta @ female,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).
thf(31,axiom,
~ ( nurse @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_nurse) ).
thf(119,plain,
~ ( nurse @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[31]) ).
thf(11,axiom,
steve @ male,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',steve_is_male) ).
thf(82,plain,
steve @ male,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).
thf(47,axiom,
! [C: $i,B: $i,A: $i] :
( ( C @ ( A @ equal_people ) )
| ~ ( B @ ( C @ has_job ) )
| ~ ( B @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',each_job_held_once) ).
thf(151,plain,
! [C: $i,B: $i,A: $i] :
( ( C @ ( A @ equal_people ) )
| ~ ( B @ ( C @ has_job ) )
| ~ ( B @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[47]) ).
thf(63,axiom,
! [A: $i] :
( ( A @ educated )
| ~ ( teacher @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',teacher_is_educated) ).
thf(183,plain,
! [A: $i] :
( ( A @ educated )
| ~ ( teacher @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[63]) ).
thf(25,axiom,
~ ( nurse @ ( chef @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',chef_not_nurse) ).
thf(107,plain,
~ ( nurse @ ( chef @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[25]) ).
thf(9,axiom,
! [A: $i] : ( A @ ( A @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',reflexivity_for_equal_jobs) ).
thf(79,plain,
! [A: $i] : ( A @ ( A @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).
thf(18,axiom,
! [A: $i] : ( A @ ( A @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',reflexivity_for_equal_people) ).
thf(94,plain,
! [A: $i] : ( A @ ( A @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).
thf(37,axiom,
! [A: $i] :
( ( A @ male )
| ~ ( actor @ ( A @ has_job ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',actor_is_male) ).
thf(131,plain,
! [A: $i] :
( ( A @ male )
| ~ ( actor @ ( A @ has_job ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[37]) ).
thf(53,axiom,
~ ( operator @ ( guard @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',guard_not_operator) ).
thf(163,plain,
~ ( operator @ ( guard @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[53]) ).
thf(12,axiom,
thelma @ female,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',thelma_is_female) ).
thf(83,plain,
thelma @ female,
inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).
thf(16,axiom,
~ ( thelma @ ( roberta @ equal_people ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',roberta_not_thelma) ).
thf(90,plain,
~ ( thelma @ ( roberta @ equal_people ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).
thf(27,axiom,
~ ( actor @ ( police @ equal_jobs ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',police_not_actor) ).
thf(111,plain,
~ ( actor @ ( police @ equal_jobs ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[27]) ).
thf(187,plain,
$false,
inference(e,[status(thm)],[115,153,185,78,117,109,95,99,69,101,88,125,157,179,121,84,147,133,137,165,92,65,97,169,141,173,129,73,105,161,149,71,181,86,159,113,76,103,155,135,80,167,123,145,67,177,127,175,143,171,139,75,119,82,151,183,107,79,94,131,163,83,90,111]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ019-1 : TPTP v9.3.1. Bugfixed v5.1.0.
% 0.00/0.08 % Command : java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.14/0.41 % Computer : n001.cluster.edu
% 0.14/0.41 % Model : x86_64 x86_64
% 0.14/0.41 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.41 % Memory : 8046.5625MB
% 0.14/0.41 % OS : Linux 6.8.0-71-generic
% 0.14/0.41 % CPULimit : 300
% 0.14/0.41 % WCLimit : 300
% 0.14/0.41 % DateTime : Sat Sep 26 05:11:12 UTC 2026
% 0.14/0.41 % CPUTime :
% 0.14/0.41 Running java -Xss128m -Xmx2g -Xms1g -jar /export/starexec/sandbox2/solver/bin/leo3.jar /export/starexec/sandbox2/benchmark/theBenchmark.p -t 300 -p --atp eprover=/export/starexec/sandbox2/solver/bin/externals/eprover --instantiate 39
% 0.86/1.01 % [INFO] Parsing problem /export/starexec/sandbox2/benchmark/theBenchmark.p ...
% 1.34/1.22 % [INFO] Parsing done (214ms).
% 1.34/1.24 % [INFO] Running in sequential loop mode.
% 2.01/1.64 % [INFO] eprover registered as external prover.
% 2.01/1.65 % [INFO] Scanning for conjecture ...
% 2.20/1.76 % [INFO] Found a conjecture (or negated_conjecture) and 63 axioms. Running axiom selection ...
% 2.38/1.86 % [INFO] Axiom selection finished. Selected 63 axioms (removed 0 axioms).
% 2.60/1.91 % [INFO] Problem is propositional (TPTP CNF).
% 2.60/1.91 % [INFO] Type checking passed.
% 2.60/1.92 % [CONFIG] Using configuration: timeout(300) with strategy<name(default),share(1.0),primSubst(3),sos(false),unifierCount(4),uniDepth(8),boolExt(true),choice(true),renaming(true),funcspec(false), domConstr(0),specialInstances(39),restrictUniAttempts(true),termOrdering(CPO)>. Searching for refutation ...
% 4.22/2.63 % External prover 'e' found a proof!
% 4.22/2.63 % [INFO] Killing All external provers ...
% 4.22/2.63 % Time passed: 2067ms (effective reasoning time: 1385ms)
% 4.22/2.63 % Axioms used in derivation (63): husband_is_male, nurse_not_boxer, operator_not_boxer, nurse_not_operator, roberta_is_not_police, actor_not_teacher, wife_is_female, symmetry_of_equal_jobs, everyone_works, every_job_is_used, guard_not_boxer, chef_is_female, guard_not_nurse, roberta_not_pete, actor_not_boxer, teacher_is_educated, roberta_not_steve, roberta_is_not_boxer, boxer_not_teacher, nurse_not_teacher, chef_not_teacher, thelma_not_steve, chef_not_police, roberta_not_thelma, reflexivity_for_equal_jobs, roberta_is_female, husband_of_chef_is_operator1, guard_not_teacher, pete_not_steve, police_not_teacher, symmetry_of_equal_people, nurse_is_educated, each_has_maximum_of_two_jobs, pete_is_not_educated, chef_not_operator, actor_is_male, each_job_held_once, husband_of_chef_is_operator2, guard_not_police, operator_not_actor, males_are_not_female, chef_not_guard, nurse_not_police, steve_is_male, guard_not_actor, chef_is_not_also_police, police_not_actor, pete_is_male, chef_not_boxer, operator_not_teacher, nurse_is_male, chef_not_actor, police_is_educated, operator_not_police, everyone_male_or_female, chef_not_nurse, pete_not_thelma, guard_not_operator, police_not_boxer, nurse_not_actor, roberta_is_not_chef, thelma_is_female, reflexivity_for_equal_people
% 4.22/2.63 % No. of inferences in proof: 129
% 4.22/2.63 % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : 2067 ms resp. 1385 ms w/o parsing
% 4.49/2.72 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 4.49/2.72 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------