%------------------------------------------------------------------------------
% File : Leo-III---1.8.0
% Problem : SWX199-1 : TPTP v9.3.1. Released v9.3.0.
% 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 : n006.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 09:15:15 AM UTC 2026
% Result : Unsatisfiable 4.02s 2.57s
% Output : Refutation 4.37s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 24
% Syntax : Number of formulae : 49 ( 45 unt; 0 typ; 0 def)
% Number of atoms : 53 ( 52 equ; 0 cnn)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 282 ( 6 ~; 4 |; 0 &; 272 @)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 3 avg)
% Number of types : 1 ( 0 usr)
% Number of type conns : 0 ( 0 >; 0 *; 0 +; 0 <<)
% Number of symbols : 16 ( 14 usr; 5 con; 0-5 aty)
% Number of variables : 92 ( 0 ^; 92 !; 0 ?; 92 :)
% Comments :
%------------------------------------------------------------------------------
thf(eq3_decl,type,
eq3: $i > $i > $i ).
thf(prop_merge_comm_decl,type,
prop_merge_comm: $i > $i > $i > $i ).
thf(bfalse_decl,type,
bfalse: $i ).
thf(btrue_decl,type,
btrue: $i ).
thf(leqNat_decl,type,
leqNat: $i > $i > $i ).
thf(s_decl,type,
s: $i > $i ).
thf(eq2_decl,type,
eq2: $i > $i > $i ).
thf(merge_decl,type,
merge: $i > $i > $i ).
thf(cons_decl,type,
cons: $i > $i > $i ).
thf(aux_decl,type,
aux: $i > $i > $i > $i > $i > $i ).
thf(nil_decl,type,
nil: $i ).
thf(z_decl,type,
z: $i ).
thf(eq_decl,type,
eq: $i > $i > $i ).
thf(impl_decl,type,
impl: $i > $i > $i ).
thf(16,axiom,
! [B: $i,A: $i] :
( ( B @ ( A @ cons ) @ ( nil @ eq ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_021) ).
thf(57,plain,
! [B: $i,A: $i] :
( ( B @ ( A @ cons ) @ ( nil @ eq ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[16]) ).
thf(20,axiom,
! [A: $i] :
( ( A @ s @ ( z @ eq2 ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_014) ).
thf(65,plain,
! [A: $i] :
( ( A @ s @ ( z @ eq2 ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[20]) ).
thf(14,axiom,
( ( bfalse @ ( btrue @ eq3 ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_012) ).
thf(53,plain,
( ( bfalse @ ( btrue @ eq3 ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[14]) ).
thf(17,axiom,
! [A: $i] :
( ( A @ ( A @ eq ) )
= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_016) ).
thf(59,plain,
! [A: $i] :
( ( A @ ( A @ eq ) )
= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[17]) ).
thf(12,axiom,
! [A: $i] :
( ( A @ ( btrue @ impl ) )
= A ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_008) ).
thf(49,plain,
! [A: $i] :
( ( A @ ( btrue @ impl ) )
= A ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[12]) ).
thf(19,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( btrue @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) )
= ( D @ ( C @ cons ) @ ( B @ merge ) @ ( A @ cons ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom) ).
thf(63,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( btrue @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) )
= ( D @ ( C @ cons ) @ ( B @ merge ) @ ( A @ cons ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[19]) ).
thf(21,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( ( D @ ( B @ cons ) @ ( C @ ( A @ cons ) @ eq ) )
= ( D @ ( C @ eq ) ) )
| ( ( B @ ( A @ eq2 ) )
!= btrue ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_020) ).
thf(67,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( ( D @ ( B @ cons ) @ ( C @ ( A @ cons ) @ eq ) )
= ( D @ ( C @ eq ) ) )
| ( ( B @ ( A @ eq2 ) )
!= btrue ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[21]) ).
thf(23,axiom,
( ( btrue @ ( bfalse @ eq3 ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_011) ).
thf(72,plain,
( ( btrue @ ( bfalse @ eq3 ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[23]) ).
thf(11,axiom,
! [A: $i] :
( ( A @ ( A @ eq3 ) )
= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_018) ).
thf(47,plain,
! [A: $i] :
( ( A @ ( A @ eq3 ) )
= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[11]) ).
thf(9,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( ( D @ ( B @ cons ) @ ( C @ ( A @ cons ) @ eq ) )
= bfalse )
| ( ( B @ ( A @ eq2 ) )
!= bfalse ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_019) ).
thf(42,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( ( D @ ( B @ cons ) @ ( C @ ( A @ cons ) @ eq ) )
= bfalse )
| ( ( B @ ( A @ eq2 ) )
!= bfalse ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[9]) ).
thf(1,negated_conjecture,
! [C: $i,B: $i,A: $i] :
( ( bfalse @ ( C @ ( B @ ( A @ prop_merge_comm ) ) @ eq3 ) )
!= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',goal) ).
thf(25,plain,
! [C: $i,B: $i,A: $i] :
( ( bfalse @ ( C @ ( B @ ( A @ prop_merge_comm ) ) @ eq3 ) )
!= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[1]) ).
thf(18,axiom,
! [A: $i] :
( ( A @ ( bfalse @ impl ) )
= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_009) ).
thf(61,plain,
! [A: $i] :
( ( A @ ( bfalse @ impl ) )
= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[18]) ).
thf(24,axiom,
! [C: $i,B: $i,A: $i] :
( ( C @ ( B @ ( A @ prop_merge_comm ) ) )
= ( B @ ( C @ merge ) @ ( C @ ( B @ merge ) @ eq ) @ ( A @ ( C @ merge ) @ ( C @ ( A @ merge ) @ eq ) @ impl ) @ ( A @ ( B @ merge ) @ ( B @ ( A @ merge ) @ eq ) @ impl ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_010) ).
thf(74,plain,
! [C: $i,B: $i,A: $i] :
( ( C @ ( B @ ( A @ prop_merge_comm ) ) )
= ( B @ ( C @ merge ) @ ( C @ ( B @ merge ) @ eq ) @ ( A @ ( C @ merge ) @ ( C @ ( A @ merge ) @ eq ) @ impl ) @ ( A @ ( B @ merge ) @ ( B @ ( A @ merge ) @ eq ) @ impl ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[24]) ).
thf(22,axiom,
! [A: $i] :
( ( z @ ( A @ s @ eq2 ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_015) ).
thf(70,plain,
! [A: $i] :
( ( z @ ( A @ s @ eq2 ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[22]) ).
thf(2,axiom,
! [B: $i,A: $i] :
( ( B @ s @ ( A @ s @ leqNat ) )
= ( B @ ( A @ leqNat ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_004) ).
thf(28,plain,
! [B: $i,A: $i] :
( ( B @ s @ ( A @ s @ leqNat ) )
= ( B @ ( A @ leqNat ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[2]) ).
thf(7,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( bfalse @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) )
= ( D @ ( B @ ( A @ cons ) @ merge ) @ ( C @ cons ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_001) ).
thf(38,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( bfalse @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) )
= ( D @ ( B @ ( A @ cons ) @ merge ) @ ( C @ cons ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[7]) ).
thf(10,axiom,
! [A: $i] :
( ( z @ ( A @ s @ leqNat ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_003) ).
thf(45,plain,
! [A: $i] :
( ( z @ ( A @ s @ leqNat ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[10]) ).
thf(4,axiom,
! [D: $i,C: $i,B: $i,A: $i] :
( ( D @ ( C @ cons ) @ ( B @ ( A @ cons ) @ merge ) )
= ( C @ ( A @ leqNat ) @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_007) ).
thf(32,plain,
! [D: $i,C: $i,B: $i,A: $i] :
( ( D @ ( C @ cons ) @ ( B @ ( A @ cons ) @ merge ) )
= ( C @ ( A @ leqNat ) @ ( D @ ( C @ ( B @ ( A @ aux ) ) ) ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[4]) ).
thf(5,axiom,
! [A: $i] :
( ( A @ ( nil @ merge ) )
= A ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_005) ).
thf(34,plain,
! [A: $i] :
( ( A @ ( nil @ merge ) )
= A ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[5]) ).
thf(8,axiom,
! [A: $i] :
( ( A @ ( z @ leqNat ) )
= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_002) ).
thf(40,plain,
! [A: $i] :
( ( A @ ( z @ leqNat ) )
= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[8]) ).
thf(15,axiom,
! [B: $i,A: $i] :
( ( nil @ ( B @ ( A @ cons ) @ eq ) )
= bfalse ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_022) ).
thf(55,plain,
! [B: $i,A: $i] :
( ( nil @ ( B @ ( A @ cons ) @ eq ) )
= bfalse ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[15]) ).
thf(6,axiom,
! [B: $i,A: $i] :
( ( nil @ ( B @ ( A @ cons ) @ merge ) )
= ( B @ ( A @ cons ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_006) ).
thf(36,plain,
! [B: $i,A: $i] :
( ( nil @ ( B @ ( A @ cons ) @ merge ) )
= ( B @ ( A @ cons ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[6]) ).
thf(3,axiom,
! [B: $i,A: $i] :
( ( B @ s @ ( A @ s @ eq2 ) )
= ( B @ ( A @ eq2 ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_013) ).
thf(30,plain,
! [B: $i,A: $i] :
( ( B @ s @ ( A @ s @ eq2 ) )
= ( B @ ( A @ eq2 ) ) ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[3]) ).
thf(13,axiom,
! [A: $i] :
( ( A @ ( A @ eq2 ) )
= btrue ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',axiom_017) ).
thf(51,plain,
! [A: $i] :
( ( A @ ( A @ eq2 ) )
= btrue ),
inference(defexp_and_simp_and_etaexpand,[status(thm)],[13]) ).
thf(80,plain,
$false,
inference(e,[status(thm)],[57,65,53,59,49,63,67,72,47,42,25,61,74,70,28,38,45,32,34,40,55,36,30,51]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SWX199-1 : TPTP v9.3.1. Released v9.3.0.
% 0.00/0.09 % 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
% 0.16/0.42 % Computer : n006.cluster.edu
% 0.16/0.42 % Model : x86_64 x86_64
% 0.16/0.42 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.42 % Memory : 8046.5625MB
% 0.16/0.42 % OS : Linux 6.8.0-71-generic
% 0.16/0.42 % CPULimit : 300
% 0.16/0.42 % WCLimit : 300
% 0.16/0.42 % DateTime : Sat Sep 26 16:54:40 UTC 2026
% 0.16/0.42 % CPUTime :
% 0.16/0.42 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 ...
% 1.38/1.21 % [INFO] Parsing done (197ms).
% 1.38/1.23 % [INFO] Running in sequential loop mode.
% 2.01/1.63 % [INFO] eprover registered as external prover.
% 2.01/1.64 % [INFO] Scanning for conjecture ...
% 2.21/1.73 % [INFO] Found a conjecture (or negated_conjecture) and 23 axioms. Running axiom selection ...
% 2.37/1.81 % [INFO] Axiom selection finished. Selected 23 axioms (removed 0 axioms).
% 2.37/1.84 % [INFO] Problem is propositional (TPTP CNF).
% 2.37/1.84 % [INFO] Type checking passed.
% 2.37/1.85 % [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 ...
% 4.02/2.56 % External prover 'e' found a proof!
% 4.02/2.56 % [INFO] Killing All external provers ...
% 4.02/2.56 % Time passed: 1999ms (effective reasoning time: 1331ms)
% 4.02/2.57 % Axioms used in derivation (23): axiom_010, axiom_021, axiom_002, axiom_016, axiom_005, axiom_012, axiom_001, axiom_022, axiom_020, axiom_003, axiom_014, axiom_007, axiom_018, axiom_009, axiom_017, axiom_013, axiom_006, axiom_015, axiom_004, axiom, axiom_011, axiom_019, axiom_008
% 4.02/2.57 % No. of inferences in proof: 49
% 4.02/2.57 % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p : 1999 ms resp. 1331 ms w/o parsing
% 4.37/2.63 % SZS output start Refutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 4.37/2.63 % [INFO] Killing All external provers ...
%------------------------------------------------------------------------------