%------------------------------------------------------------------------------
% File : Vampire---5.0.1
% Problem : NLP124-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% Computer : n002.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 : Tue Sep 29 12:07:29 PM UTC 2026
% Result : Satisfiable 6.18s 1.87s
% Output : Saturation 6.18s
% Verified :
% SZS Type : ERROR: Analysing output (MakeTreeStats fails)
% Comments :
%------------------------------------------------------------------------------
cnf(u82,negated_conjecture,
specific(skc6,skc8) ).
cnf(clause13,axiom,
( ~ entity(X0,X1)
| specific(X0,X1) ) ).
cnf(clause5,axiom,
( ~ eventuality(X0,X1)
| specific(X0,X1) ) ).
cnf(clause28,axiom,
( ~ chevy(X0,X1)
| car(X0,X1) ) ).
cnf(clause30,axiom,
( ~ vehicle(X0,X1)
| transport(X0,X1) ) ).
cnf(clause43,negated_conjecture,
placename(skc6,skc9) ).
cnf(u89,negated_conjecture,
( ~ of(skc6,X0,skc10)
| ~ placename(skc6,X0)
| skc9 = X0 ) ).
cnf(clause45,negated_conjecture,
event(skc6,skc7) ).
cnf(u73,negated_conjecture,
specific(skc6,skc10) ).
cnf(u72,negated_conjecture,
existent(skc6,skc10) ).
cnf(u74,negated_conjecture,
car(skc6,skc8) ).
cnf(u84,negated_conjecture,
~ nonexistent(skc6,skc11) ).
cnf(u66,negated_conjecture,
abstraction(skc6,skc9) ).
cnf(clause26,axiom,
( ~ city(X0,X1)
| location(X0,X1) ) ).
cnf(u78,negated_conjecture,
artifact(skc6,skc8) ).
cnf(clause18,axiom,
( ~ placename(X0,X1)
| relname(X0,X1) ) ).
cnf(u70,negated_conjecture,
object(skc6,skc10) ).
cnf(u64,negated_conjecture,
relname(skc6,skc9) ).
cnf(u63,negated_conjecture,
existent(skc6,skc11) ).
cnf(u57,negated_conjecture,
nonexistent(skc6,skc7) ).
cnf(clause8,axiom,
( ~ street(X0,X1)
| way(X0,X1) ) ).
cnf(u59,negated_conjecture,
artifact(skc6,skc11) ).
cnf(clause10,axiom,
( ~ artifact(X0,X1)
| object(X0,X1) ) ).
cnf(clause20,axiom,
( ~ relation(X0,X1)
| abstraction(X0,X1) ) ).
cnf(clause2,axiom,
( ~ event(X0,X1)
| eventuality(X0,X1) ) ).
cnf(u61,negated_conjecture,
entity(skc6,skc11) ).
cnf(clause33,axiom,
( ~ general(X0,X1)
| ~ specific(X0,X1) ) ).
cnf(clause31,axiom,
( ~ transport(X0,X1)
| instrumentality(X0,X1) ) ).
cnf(clause14,axiom,
( ~ entity(X0,X1)
| existent(X0,X1) ) ).
cnf(u55,negated_conjecture,
eventuality(skc6,skc7) ).
cnf(clause6,axiom,
( ~ eventuality(X0,X1)
| nonexistent(X0,X1) ) ).
cnf(u81,negated_conjecture,
existent(skc6,skc8) ).
cnf(clause25,axiom,
( ~ hollywood_placename(X0,X1)
| placename(X0,X1) ) ).
cnf(u77,negated_conjecture,
instrumentality(skc6,skc8) ).
cnf(clause42,negated_conjecture,
chevy(skc6,skc8) ).
cnf(clause29,axiom,
( ~ car(X0,X1)
| vehicle(X0,X1) ) ).
cnf(u85,negated_conjecture,
~ nonexistent(skc6,skc10) ).
cnf(u76,negated_conjecture,
transport(skc6,skc8) ).
cnf(clause44,negated_conjecture,
hollywood_placename(skc6,skc9) ).
cnf(clause19,axiom,
( ~ relname(X0,X1)
| relation(X0,X1) ) ).
cnf(u79,negated_conjecture,
object(skc6,skc8) ).
cnf(u36,axiom,
( ~ of(X0,X2,X3)
| ~ placename(X0,X1)
| ~ placename(X0,X2)
| ~ of(X0,X1,X3)
| ~ entity(X0,X3)
| X1 = X2 ) ).
cnf(clause38,negated_conjecture,
city(skc6,skc10) ).
cnf(u75,negated_conjecture,
vehicle(skc6,skc8) ).
cnf(u65,negated_conjecture,
relation(skc6,skc9) ).
cnf(u86,negated_conjecture,
~ nonexistent(skc6,skc8) ).
cnf(u67,negated_conjecture,
general(skc6,skc9) ).
cnf(clause27,axiom,
( ~ location(X0,X1)
| object(X0,X1) ) ).
cnf(clause34,axiom,
( ~ existent(X0,X1)
| ~ nonexistent(X0,X1) ) ).
cnf(u69,negated_conjecture,
location(skc6,skc10) ).
cnf(u56,negated_conjecture,
specific(skc6,skc7) ).
cnf(u71,negated_conjecture,
entity(skc6,skc10) ).
cnf(clause37,negated_conjecture,
street(skc6,skc11) ).
cnf(u80,negated_conjecture,
entity(skc6,skc8) ).
cnf(clause49,negated_conjecture,
of(skc6,skc9,skc10) ).
cnf(clause23,axiom,
( ~ abstraction(X0,X1)
| general(X0,X1) ) ).
cnf(u60,negated_conjecture,
object(skc6,skc11) ).
cnf(u83,negated_conjecture,
~ specific(skc6,skc9) ).
cnf(clause32,axiom,
( ~ instrumentality(X0,X1)
| artifact(X0,X1) ) ).
cnf(u62,negated_conjecture,
specific(skc6,skc11) ).
cnf(u58,negated_conjecture,
way(skc6,skc11) ).
cnf(clause9,axiom,
( ~ way(X0,X1)
| artifact(X0,X1) ) ).
cnf(clause11,axiom,
( ~ object(X0,X1)
| entity(X0,X1) ) ).
cnf(clause1,axiom,
( ~ barrel(X0,X1)
| event(X0,X1) ) ).
cnf(clause47,negated_conjecture,
barrel(skc6,skc7) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : NLP124-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.06 % Command : run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.12/0.40 % Computer : n002.cluster.edu
% 0.12/0.40 % Model : x86_64 x86_64
% 0.12/0.40 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.40 % Memory : 8046.5625MB
% 0.12/0.40 % OS : Linux 6.8.0-71-generic
% 0.12/0.40 % CPULimit : 300
% 0.12/0.40 % WCLimit : 300
% 0.12/0.40 % DateTime : Sun Sep 27 18:09:07 UTC 2026
% 0.12/0.40 % CPUTime :
% 0.12/0.40 Running run_vampire /export/starexec/sandbox2/benchmark/theBenchmark.p 300 THM
% 0.12/0.44 Running first-order theorem proving
% 0.12/0.44 Running: /export/starexec/sandbox2/solver/bin/vampire --input_syntax tptp --output_axiom_names on --mode casc -m 16384 --cores 7 -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 4.17/1.67 % (3786932)Input is clausal, will run a generic CNF schedule.
% 4.17/1.67 % (3786938)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:npcc=on:urr=on:br=off:random_seed=173073892:i=132376:av=off_2999 on theBenchmark for (2999ds/132376Mi)
% 4.17/1.67 % (3786943)dis-21_1_sil=8000:lcm=predicate:random_seed=219875139:st=5:avsq=on:i=117:avsqr=1,16:sd=3:aac=none:ep=RS:fsr=off:ss=included_2999 on theBenchmark for (2999ds/117Mi)
% 4.17/1.67 % (3786940)lrs+10_1_sil=8000:sp=occurrence:random_seed=3232361105:i=107:sd=3:ss=axioms:sgt=8_2999 on theBenchmark for (2999ds/107Mi)
% 4.17/1.67 % (3786941)dis-1002_1_to=lpo:sil=16000:fd=off:random_seed=1907779855:st=1.5:i=114:aac=none:ins=7:ss=axioms:fsd=on_2999 on theBenchmark for (2999ds/114Mi)
% 4.17/1.67 % (3786937)lrs+10_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=full:npcc=on:drc=off:sp=weighted_frequency:spb=goal:fd=preordered:foolp=on:random_seed=2903527860:i=140167_2999 on theBenchmark for (2999ds/140167Mi)
% 4.17/1.67 % (3786939)lrs+1002_1_ncem=casc2026/models/loop8.pt:sil=128000:tgt=ground:npcc=on:sp=reverse_frequency:spb=intro:random_seed=4204763054:i=137899:s2at=10:gtgl=3:kws=precedence:add=on:bd=preordered:gtg=position_2999 on theBenchmark for (2999ds/137899Mi)
% 4.17/1.67 % (3786942)dis-1011_1_sil=16000:fde=unused:s2agt=70:random_seed=4153500806:s2a=on:i=180:gtg=position_2999 on theBenchmark for (2999ds/180Mi)
% 4.17/1.67 % (3786941)Refutation not found, incomplete strategy
% 4.17/1.67 % (3786941)------------------------------
% 4.17/1.67 % (3786941)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.17/1.67 % (3786941)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.17/1.67 % (3786941)CaDiCaL version: 2.1.3
% 4.17/1.67 % (3786941)Termination reason: Refutation not found, incomplete strategy
% 4.17/1.67 % (3786941)Time elapsed: 0.001 s
% 4.17/1.67 % (3786941)Peak memory usage: 86 MB
% 4.17/1.67 % (3786940)Refutation not found, incomplete strategy
% 4.17/1.67 % (3786940)------------------------------
% 4.17/1.67 % (3786940)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.17/1.67 % (3786940)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.17/1.67 % (3786940)CaDiCaL version: 2.1.3
% 4.17/1.67 % (3786940)Termination reason: Refutation not found, incomplete strategy
% 4.17/1.67 % (3786940)Time elapsed: 0.002 s
% 4.17/1.67 % (3786940)Peak memory usage: 87 MB
% 4.17/1.67 % (3786940)Instructions burned: 1 (million)
% 4.17/1.67 % (3786943)Refutation not found, incomplete strategy
% 4.17/1.67 % (3786943)------------------------------
% 4.17/1.67 % (3786943)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.17/1.67 % (3786943)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.17/1.67 % (3786943)CaDiCaL version: 2.1.3
% 4.17/1.67 % (3786943)Termination reason: Refutation not found, incomplete strategy
% 4.17/1.67 % (3786943)Time elapsed: 0.002 s
% 4.17/1.67 % (3786943)Peak memory usage: 88 MB
% 4.17/1.67 % (3786943)Instructions burned: 1 (million)
% 4.17/1.67 % (3786942)Refutation not found, incomplete strategy
% 4.17/1.67 % (3786942)------------------------------
% 4.17/1.67 % (3786942)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.17/1.67 % (3786942)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.17/1.67 % (3786942)CaDiCaL version: 2.1.3
% 4.17/1.67 % (3786942)Termination reason: Refutation not found, incomplete strategy
% 4.17/1.67 % (3786942)Time elapsed: 0.003 s
% 4.17/1.67 % (3786942)Peak memory usage: 88 MB
% 4.17/1.67 % (3786942)Instructions burned: 3 (million)
% 4.17/1.67 % (3786942)------------------------------
% 4.17/1.67 % (3786942)------------------------------
% 4.17/1.67 % (3786943)------------------------------
% 4.17/1.67 % (3786943)------------------------------
% 4.17/1.67 % (3786940)------------------------------
% 4.17/1.67 % (3786940)------------------------------
% 4.17/1.67 % (3786941)------------------------------
% 4.17/1.67 % (3786941)------------------------------
% 4.17/1.67 % (3786938)Refutation not found, incomplete strategy
% 4.17/1.67 % (3786938)------------------------------
% 4.17/1.67 % (3786938)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 4.17/1.67 % (3786938)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 4.17/1.67 % (3786938)CaDiCaL version: 2.1.3
% 4.17/1.67 % (3786938)Termination reason: Refutation not found, incomplete strategy
% 4.17/1.67 % (3786938)Time elapsed: 0.373 s
% 4.17/1.67 % (3786938)Peak memory usage: 127 MB
% 6.18/1.87 % (3786938)Instructions burned: 945 (million)
% 6.18/1.87 % (3786951)dis+1010_3_sil=8000:plsq=on:drc=off:fde=none:plsqc=1:bsd=on:plsqr=7,2:sos=on:spb=goal_then_units:random_seed=1758971612:i=143:sd=2:aac=none:ss=axioms:sgt=16_2996 on theBenchmark for (2996ds/143Mi)
% 6.18/1.87 % (3786954)lrs+10_64_to=lpo:sil=8000:random_seed=4170954440:i=126:bd=preordered_2996 on theBenchmark for (2996ds/126Mi)
% 6.18/1.87 % (3786952)ott-1010_1_to=lpo:sil=16000:sos=on:spb=units:urr=on:bce=on:br=off:random_seed=2584145623:st=3:avsq=on:s2a=on:i=189:s2at=1.2:avsqr=1,16:sd=2:bd=all:nm=64:ss=axioms:sgt=30_2996 on theBenchmark for (2996ds/189Mi)
% 6.18/1.87 % (3786953)lrs-1002_1_to=lpo:sil=8000:fde=none:sos=on:random_seed=159828629:st=4:i=219:sd=3:ss=axioms_2996 on theBenchmark for (2996ds/219Mi)
% 6.18/1.87 % (3786953)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786953)------------------------------
% 6.18/1.87 % (3786953)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786953)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786952)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786952)------------------------------
% 6.18/1.87 % (3786952)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786953)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786952)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786953)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786953)Time elapsed: 0.001 s
% 6.18/1.87 % (3786953)Peak memory usage: 88 MB
% 6.18/1.87 % (3786952)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786953)Instructions burned: 1 (million)
% 6.18/1.87 % (3786952)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786952)Time elapsed: 0.001 s
% 6.18/1.87 % (3786952)Peak memory usage: 88 MB
% 6.18/1.87 % (3786952)Instructions burned: 1 (million)
% 6.18/1.87 % (3786951)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786951)------------------------------
% 6.18/1.87 % (3786951)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786951)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786951)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786951)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786951)Time elapsed: 0.001 s
% 6.18/1.87 % (3786951)Peak memory usage: 88 MB
% 6.18/1.87 % (3786951)Instructions burned: 1 (million)
% 6.18/1.87 % (3786954)First to succeed.
% 6.18/1.87 % (3786954)Solution written to "/export/starexec/sandbox2/tmp/vampire-proof-3786932"
% 6.18/1.87 % (3786938)------------------------------
% 6.18/1.87 % (3786938)------------------------------
% 6.18/1.87 % (3786959)lrs+1011_16_to=lpo:sil=8000:drc=off:sp=reverse_frequency:spb=goal_then_units:random_seed=3657628689:avsq=on:i=194:fgj=on:bd=preordered_2993 on theBenchmark for (2993ds/194Mi)
% 6.18/1.87 % (3786959)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786959)------------------------------
% 6.18/1.87 % (3786959)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786959)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786959)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786959)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786959)Time elapsed: 0.001 s
% 6.18/1.87 % (3786959)Peak memory usage: 88 MB
% 6.18/1.87 % (3786959)Instructions burned: 3 (million)
% 6.18/1.87 % (3786939)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786939)------------------------------
% 6.18/1.87 % (3786939)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786939)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786939)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786939)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786939)Time elapsed: 0.623 s
% 6.18/1.87 % (3786939)Peak memory usage: 127 MB
% 6.18/1.87 % (3786939)Instructions burned: 915 (million)
% 6.18/1.87 % (3786952)------------------------------
% 6.18/1.87 % (3786952)------------------------------
% 6.18/1.87 % (3786937)Refutation not found, incomplete strategy
% 6.18/1.87 % (3786937)------------------------------
% 6.18/1.87 % (3786937)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786937)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786937)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786937)Termination reason: Refutation not found, incomplete strategy
% 6.18/1.87 % (3786937)Time elapsed: 0.624 s
% 6.18/1.87 % (3786937)Peak memory usage: 127 MB
% 6.18/1.87 % (3786937)Instructions burned: 919 (million)
% 6.18/1.87 % (3786953)------------------------------
% 6.18/1.87 % (3786953)------------------------------
% 6.18/1.87 % (3786951)------------------------------
% 6.18/1.87 % (3786951)------------------------------
% 6.18/1.87 % SZS status Satisfiable for theBenchmark
% 6.18/1.87 % SZS output start Saturation.
% See solution above
% 6.18/1.87 % SZS output start Definitions and Model Updates.
% 6.18/1.87 for all inputs,
% 6.18/1.87 define thing(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define singleton(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define unisex(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define nonliving(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define impartial(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define nonhuman(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define actual_world(X0) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define old(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define dirty(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define white(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define present(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define lonely(X0,X1) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define in(X0,X1,X2) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define agent(X0,X1,X2) := $true
% 6.18/1.87 for all inputs,
% 6.18/1.87 define down(X0,X1,X2) := $true
% 6.18/1.87 % SZS output end Definitions and Model Updates.
% 6.18/1.87 % (3786954)------------------------------
% 6.18/1.87 % (3786954)Version: Vampire 5.0.1 (Release build, commit ea8961452 on 2026-07-16 15:14:34 +0200)
% 6.18/1.87 % (3786954)Linked with Z3 4.14.0.0 3c47fd96cf5645d0c42b2c819d9e9a84380aa721 z3-4.8.4-9178-g3c47fd96c
% 6.18/1.87 % (3786954)CaDiCaL version: 2.1.3
% 6.18/1.87 % (3786954)Termination reason: Satisfiable
% 6.18/1.87 % (3786954)Time elapsed: 0.003 s
% 6.18/1.87 % (3786954)Peak memory usage: 87 MB
% 6.18/1.87 % (3786954)Instructions burned: 2 (million)
% 6.18/1.87 % (3786954)------------------------------
% 6.18/1.87 % (3786954)------------------------------
% 6.18/1.87 % (3786932)Success in time 0.795 s
% 6.18/1.87 % Vampire exiting
%------------------------------------------------------------------------------