TSTP Solution File: BOO072-1 by SnakeForV-SAT---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV-SAT---1.0
% Problem  : BOO072-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s

% Computer : n001.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Aug 31 15:50:20 EDT 2022

% Result   : Unsatisfiable 3.35s 0.93s
% Output   : Refutation 3.35s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :    2
% Syntax   : Number of formulae    :   41 (  41 unt;   0 def)
%            Number of atoms       :   41 (  40 equ)
%            Maximal formula atoms :    1 (   1 avg)
%            Number of connectives :    1 (   1   ~;   0   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    6 (   3 avg)
%            Maximal term depth    :   13 (   3 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :   76 (  76   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f3810,plain,
    $false,
    inference(subsumption_resolution,[],[f2,f3792]) ).

fof(f3792,plain,
    ! [X14,X13] : add(X14,X13) = add(X13,X14),
    inference(forward_demodulation,[],[f3707,f609]) ).

fof(f609,plain,
    ! [X0] : inverse(inverse(X0)) = X0,
    inference(forward_demodulation,[],[f588,f545]) ).

fof(f545,plain,
    ! [X0] : add(X0,X0) = X0,
    inference(superposition,[],[f523,f294]) ).

fof(f294,plain,
    ! [X2] : inverse(add(inverse(add(X2,X2)),inverse(add(X2,X2)))) = X2,
    inference(superposition,[],[f34,f109]) ).

fof(f109,plain,
    ! [X15] : inverse(add(X15,X15)) = inverse(add(inverse(add(X15,inverse(add(X15,X15)))),X15)),
    inference(superposition,[],[f64,f33]) ).

fof(f33,plain,
    ! [X0] : inverse(add(inverse(X0),inverse(add(X0,X0)))) = X0,
    inference(superposition,[],[f19,f19]) ).

fof(f19,plain,
    ! [X0,X1] : inverse(add(inverse(X0),inverse(add(X0,inverse(add(inverse(X0),inverse(add(X0,X1)))))))) = X0,
    inference(superposition,[],[f1,f8]) ).

fof(f8,plain,
    ! [X0] : inverse(X0) = inverse(add(inverse(add(X0,inverse(X0))),X0)),
    inference(superposition,[],[f7,f1]) ).

fof(f7,plain,
    ! [X3,X0,X1] : inverse(X0) = inverse(add(inverse(add(inverse(add(inverse(add(inverse(add(inverse(inverse(X0)),X1)),X0)),X3)),inverse(X0))),X0)),
    inference(superposition,[],[f1,f1]) ).

fof(f1,axiom,
    ! [X2,X3,X0,X1] : inverse(add(inverse(add(inverse(add(X0,X1)),X2)),inverse(add(X0,inverse(add(inverse(X2),inverse(add(X2,X3)))))))) = X2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dn1) ).

fof(f64,plain,
    ! [X17,X15] : inverse(add(inverse(add(X15,X17)),inverse(add(inverse(X15),X17)))) = X17,
    inference(superposition,[],[f34,f19]) ).

fof(f34,plain,
    ! [X2,X3,X0] : inverse(add(inverse(add(inverse(add(X2,X3)),X0)),inverse(add(X2,X0)))) = X0,
    inference(superposition,[],[f1,f19]) ).

fof(f523,plain,
    ! [X6] : inverse(add(inverse(X6),inverse(X6))) = X6,
    inference(forward_demodulation,[],[f497,f453]) ).

fof(f453,plain,
    ! [X3] : inverse(X3) = inverse(add(X3,inverse(add(inverse(X3),inverse(X3))))),
    inference(superposition,[],[f34,f396]) ).

fof(f396,plain,
    ! [X7] : inverse(add(inverse(add(inverse(X7),X7)),inverse(X7))) = X7,
    inference(superposition,[],[f115,f7]) ).

fof(f115,plain,
    ! [X14,X15,X13] : inverse(add(inverse(add(X14,X15)),inverse(add(inverse(add(X13,X14)),X15)))) = X15,
    inference(superposition,[],[f34,f64]) ).

fof(f497,plain,
    ! [X6] : inverse(add(inverse(X6),inverse(add(X6,inverse(add(inverse(X6),inverse(X6))))))) = X6,
    inference(superposition,[],[f19,f453]) ).

fof(f588,plain,
    ! [X0] : inverse(add(inverse(X0),inverse(X0))) = X0,
    inference(backward_demodulation,[],[f33,f545]) ).

fof(f3707,plain,
    ! [X14,X13] : add(X13,X14) = add(X14,inverse(inverse(X13))),
    inference(backward_demodulation,[],[f2636,f3192]) ).

fof(f3192,plain,
    ! [X46,X47] : add(inverse(X46),inverse(add(X46,X47))) = inverse(X46),
    inference(superposition,[],[f1865,f3069]) ).

fof(f3069,plain,
    ! [X70,X69] : add(add(X69,X70),X69) = add(X69,X70),
    inference(forward_demodulation,[],[f3031,f609]) ).

fof(f3031,plain,
    ! [X70,X69] : inverse(inverse(add(X69,X70))) = add(inverse(inverse(add(X69,X70))),X69),
    inference(superposition,[],[f1865,f2238]) ).

fof(f2238,plain,
    ! [X3,X5] : inverse(add(inverse(add(inverse(add(X3,X5)),X3)),inverse(add(X3,X5)))) = X3,
    inference(superposition,[],[f3,f34]) ).

fof(f3,plain,
    ! [X2,X0,X1,X4,X5] : inverse(add(inverse(add(X2,X4)),inverse(add(inverse(add(inverse(add(X0,X1)),X2)),inverse(add(inverse(X4),inverse(add(X4,X5)))))))) = X4,
    inference(superposition,[],[f1,f1]) ).

fof(f1865,plain,
    ! [X59,X60] : inverse(X59) = add(inverse(X59),inverse(add(X60,X59))),
    inference(superposition,[],[f609,f1781]) ).

fof(f1781,plain,
    ! [X8,X9] : inverse(add(inverse(X9),inverse(add(X8,X9)))) = X9,
    inference(superposition,[],[f34,f1704]) ).

fof(f1704,plain,
    ! [X16,X17] : add(inverse(add(X17,inverse(X16))),X16) = X16,
    inference(superposition,[],[f1558,f609]) ).

fof(f1558,plain,
    ! [X8,X9] : add(inverse(add(X8,X9)),inverse(X9)) = inverse(X9),
    inference(superposition,[],[f1540,f952]) ).

fof(f952,plain,
    ! [X24,X23] : inverse(X24) = add(inverse(add(inverse(X23),X24)),inverse(add(X23,X24))),
    inference(superposition,[],[f618,f609]) ).

fof(f618,plain,
    ! [X11,X12] : inverse(X12) = add(inverse(add(X11,X12)),inverse(add(inverse(X11),X12))),
    inference(superposition,[],[f609,f64]) ).

fof(f1540,plain,
    ! [X54,X53] : add(X54,X53) = add(X53,add(X54,X53)),
    inference(forward_demodulation,[],[f1527,f609]) ).

fof(f1527,plain,
    ! [X54,X53] : add(X53,add(X54,X53)) = inverse(inverse(add(X54,X53))),
    inference(superposition,[],[f609,f1482]) ).

fof(f1482,plain,
    ! [X3,X4] : inverse(add(X4,add(X3,X4))) = inverse(add(X3,X4)),
    inference(forward_demodulation,[],[f1423,f609]) ).

fof(f1423,plain,
    ! [X3,X4] : inverse(add(X3,X4)) = inverse(add(X4,inverse(inverse(add(X3,X4))))),
    inference(superposition,[],[f594,f34]) ).

fof(f594,plain,
    ! [X10,X9] : inverse(add(inverse(add(inverse(add(X9,X10)),X9)),inverse(X9))) = X9,
    inference(superposition,[],[f34,f545]) ).

fof(f2636,plain,
    ! [X14,X13] : add(X13,X14) = add(X14,inverse(add(inverse(X13),inverse(add(X13,X14))))),
    inference(forward_demodulation,[],[f2635,f609]) ).

fof(f2635,plain,
    ! [X14,X13] : inverse(inverse(add(X13,X14))) = add(X14,inverse(add(inverse(X13),inverse(add(X13,X14))))),
    inference(forward_demodulation,[],[f2569,f609]) ).

fof(f2569,plain,
    ! [X14,X13] : inverse(inverse(add(X13,X14))) = add(inverse(inverse(X14)),inverse(add(inverse(X13),inverse(add(X13,X14))))),
    inference(superposition,[],[f614,f952]) ).

fof(f614,plain,
    ! [X6,X4,X5] : inverse(X6) = add(inverse(add(inverse(add(X4,X5)),X6)),inverse(add(X4,X6))),
    inference(superposition,[],[f609,f34]) ).

fof(f2,axiom,
    add(b,a) != add(a,b),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',huntinton_1) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem    : BOO072-1 : TPTP v8.1.0. Released v2.6.0.
% 0.06/0.12  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_sat --cores 0 -t %d %s
% 0.13/0.33  % Computer : n001.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit   : 300
% 0.13/0.33  % WCLimit    : 300
% 0.13/0.33  % DateTime   : Mon Aug 29 16:30:59 EDT 2022
% 0.13/0.33  % CPUTime    : 
% 0.20/0.46  % (10344)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.20/0.46  % (10350)dis+2_1:64_add=large:bce=on:bd=off:i=2:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/2Mi)
% 0.20/0.46  % (10350)Instruction limit reached!
% 0.20/0.46  % (10350)------------------------------
% 0.20/0.46  % (10350)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.20/0.46  % (10350)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.20/0.46  % (10350)Termination reason: Unknown
% 0.20/0.46  % (10350)Termination phase: Saturation
% 0.20/0.46  
% 0.20/0.46  % (10350)Memory used [KB]: 5373
% 0.20/0.46  % (10350)Time elapsed: 0.096 s
% 0.20/0.46  % (10350)Instructions burned: 3 (million)
% 0.20/0.46  % (10350)------------------------------
% 0.20/0.46  % (10350)------------------------------
% 0.20/0.47  % (10366)ott+10_1:1_kws=precedence:tgt=ground:i=482:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/482Mi)
% 0.20/0.48  % (10358)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/99Mi)
% 0.20/0.49  % (10362)ott+10_1:8_bsd=on:fsd=on:lcm=predicate:nwc=5.0:s2a=on:s2at=1.5:spb=goal_then_units:i=176:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/176Mi)
% 0.20/0.49  % (10345)ott+33_1:4_s2a=on:tgt=ground:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.20/0.50  % (10354)ott+10_1:28_bd=off:bs=on:tgt=ground:i=101:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/101Mi)
% 0.20/0.50  % (10347)fmb+10_1:1_fmbsr=2.0:nm=4:skr=on:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 0.20/0.50  % (10342)ott+10_1:32_abs=on:br=off:urr=ec_only:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/50Mi)
% 0.20/0.50  % (10341)fmb+10_1:1_bce=on:fmbsr=1.5:nm=4:skr=on:i=191324:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/191324Mi)
% 0.20/0.50  % (10346)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=48:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/48Mi)
% 0.20/0.50  TRYING [1]
% 0.20/0.50  TRYING [2]
% 0.20/0.51  % (10364)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=498:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/498Mi)
% 0.20/0.51  % (10360)ott+10_1:1_tgt=ground:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/100Mi)
% 0.20/0.51  % (10369)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=177:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/177Mi)
% 0.20/0.51  TRYING [1]
% 0.20/0.51  % (10357)ott+11_2:3_av=off:fde=unused:nwc=5.0:tgt=ground:i=75:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/75Mi)
% 0.20/0.51  TRYING [2]
% 1.41/0.52  % (10343)ott+4_1:1_av=off:bd=off:nwc=5.0:s2a=on:s2at=2.0:slsq=on:slsqc=2:slsql=off:slsqr=1,2:sp=frequency:i=37:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/37Mi)
% 1.41/0.52  TRYING [3]
% 1.41/0.52  % (10349)dis+10_1:1_fsd=on:sp=occurrence:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/7Mi)
% 1.41/0.52  % (10363)ott+3_1:1_gsp=on:lcm=predicate:i=138:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/138Mi)
% 1.41/0.52  % (10349)Instruction limit reached!
% 1.41/0.52  % (10349)------------------------------
% 1.41/0.52  % (10349)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.41/0.52  % (10349)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.41/0.52  % (10349)Termination reason: Unknown
% 1.41/0.52  % (10349)Termination phase: Saturation
% 1.41/0.52  
% 1.41/0.52  % (10349)Memory used [KB]: 5628
% 1.41/0.52  % (10349)Time elapsed: 0.113 s
% 1.41/0.52  % (10349)Instructions burned: 9 (million)
% 1.41/0.52  % (10349)------------------------------
% 1.41/0.52  % (10349)------------------------------
% 1.41/0.52  % (10361)ott+4_1:1_av=off:bd=off:nwc=5.0:rp=on:s2a=on:s2at=2.0:slsq=on:slsqc=2:slsql=off:slsqr=1,2:sp=frequency:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/100Mi)
% 1.41/0.52  % (10355)ott+10_1:5_bd=off:tgt=full:i=99:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/99Mi)
% 1.41/0.52  % (10351)ott-1_1:6_av=off:cond=on:fsr=off:nwc=3.0:i=51:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/51Mi)
% 1.41/0.53  % (10359)fmb+10_1:1_bce=on:i=59:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/59Mi)
% 1.41/0.53  TRYING [3]
% 1.41/0.53  TRYING [1]
% 1.41/0.53  TRYING [2]
% 1.41/0.53  % (10365)ott+11_1:1_drc=off:nwc=5.0:slsq=on:slsqc=1:spb=goal_then_units:to=lpo:i=467:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/467Mi)
% 1.41/0.53  TRYING [3]
% 1.41/0.53  % (10352)ott+2_1:1_fsr=off:gsp=on:i=50:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/50Mi)
% 1.51/0.53  % (10367)ott+10_1:5_bd=off:tgt=full:i=500:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/500Mi)
% 1.51/0.53  % (10371)ott+10_7:2_awrs=decay:awrsf=8:bd=preordered:drc=off:fd=preordered:fde=unused:fsr=off:slsq=on:slsqc=2:slsqr=5,8:sp=const_min:spb=units:to=lpo:i=355:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/355Mi)
% 1.51/0.54  % (10368)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/68Mi)
% 1.51/0.54  % (10356)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/68Mi)
% 1.51/0.54  % (10353)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=100:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/100Mi)
% 1.51/0.54  % (10370)ott+33_1:4_s2a=on:tgt=ground:i=439:si=on:rawr=on:rtra=on_0 on theBenchmark for (3000ds/439Mi)
% 1.51/0.54  % (10345)Instruction limit reached!
% 1.51/0.54  % (10345)------------------------------
% 1.51/0.54  % (10345)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.54  % (10345)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.54  % (10345)Termination reason: Unknown
% 1.51/0.54  % (10345)Termination phase: Saturation
% 1.51/0.54  
% 1.51/0.54  % (10345)Memory used [KB]: 6780
% 1.51/0.54  % (10345)Time elapsed: 0.152 s
% 1.51/0.54  % (10345)Instructions burned: 51 (million)
% 1.51/0.54  % (10345)------------------------------
% 1.51/0.54  % (10345)------------------------------
% 1.51/0.54  % (10344)Instruction limit reached!
% 1.51/0.54  % (10344)------------------------------
% 1.51/0.54  % (10344)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.54  % (10344)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.54  % (10344)Termination reason: Unknown
% 1.51/0.54  % (10344)Termination phase: Saturation
% 1.51/0.54  
% 1.51/0.54  % (10344)Memory used [KB]: 6780
% 1.51/0.54  % (10344)Time elapsed: 0.176 s
% 1.51/0.54  % (10344)Instructions burned: 51 (million)
% 1.51/0.54  % (10344)------------------------------
% 1.51/0.54  % (10344)------------------------------
% 1.51/0.56  TRYING [4]
% 1.51/0.56  TRYING [4]
% 1.51/0.57  % (10346)Instruction limit reached!
% 1.51/0.57  % (10346)------------------------------
% 1.51/0.57  % (10346)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.57  % (10347)Instruction limit reached!
% 1.51/0.57  % (10347)------------------------------
% 1.51/0.57  % (10347)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.57  % (10347)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.57  % (10347)Termination reason: Unknown
% 1.51/0.57  % (10347)Termination phase: Finite model building SAT solving
% 1.51/0.57  
% 1.51/0.57  % (10347)Memory used [KB]: 6140
% 1.51/0.57  % (10347)Time elapsed: 0.180 s
% 1.51/0.57  % (10347)Instructions burned: 51 (million)
% 1.51/0.57  % (10347)------------------------------
% 1.51/0.57  % (10347)------------------------------
% 1.51/0.58  % (10343)Instruction limit reached!
% 1.51/0.58  % (10343)------------------------------
% 1.51/0.58  % (10343)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.58  % (10343)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.58  % (10343)Termination reason: Unknown
% 1.51/0.58  % (10343)Termination phase: Saturation
% 1.51/0.58  
% 1.51/0.58  % (10343)Memory used [KB]: 2046
% 1.51/0.58  % (10343)Time elapsed: 0.162 s
% 1.51/0.58  % (10343)Instructions burned: 39 (million)
% 1.51/0.58  % (10343)------------------------------
% 1.51/0.58  % (10343)------------------------------
% 1.51/0.58  TRYING [4]
% 1.51/0.58  % (10342)Instruction limit reached!
% 1.51/0.58  % (10342)------------------------------
% 1.51/0.58  % (10342)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.58  % (10342)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.58  % (10342)Termination reason: Unknown
% 1.51/0.58  % (10342)Termination phase: Saturation
% 1.51/0.58  
% 1.51/0.58  % (10342)Memory used [KB]: 6652
% 1.51/0.58  % (10342)Time elapsed: 0.179 s
% 1.51/0.58  % (10342)Instructions burned: 52 (million)
% 1.51/0.58  % (10342)------------------------------
% 1.51/0.58  % (10342)------------------------------
% 1.51/0.59  % (10346)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.59  % (10346)Termination reason: Unknown
% 1.51/0.59  % (10346)Termination phase: Saturation
% 1.51/0.59  
% 1.51/0.59  % (10346)Memory used [KB]: 6396
% 1.51/0.59  % (10346)Time elapsed: 0.167 s
% 1.51/0.59  % (10346)Instructions burned: 48 (million)
% 1.51/0.59  % (10346)------------------------------
% 1.51/0.59  % (10346)------------------------------
% 1.51/0.60  % (10352)Instruction limit reached!
% 1.51/0.60  % (10352)------------------------------
% 1.51/0.60  % (10352)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.60  % (10352)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.60  % (10352)Termination reason: Unknown
% 1.51/0.60  % (10352)Termination phase: Saturation
% 1.51/0.60  
% 1.51/0.60  % (10352)Memory used [KB]: 6652
% 1.51/0.60  % (10352)Time elapsed: 0.189 s
% 1.51/0.60  % (10352)Instructions burned: 51 (million)
% 1.51/0.60  % (10352)------------------------------
% 1.51/0.60  % (10352)------------------------------
% 1.51/0.60  % (10411)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=388:si=on:rawr=on:rtra=on_0 on theBenchmark for (2998ds/388Mi)
% 1.51/0.60  % (10359)Instruction limit reached!
% 1.51/0.60  % (10359)------------------------------
% 1.51/0.60  % (10359)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.60  % (10359)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.60  % (10359)Termination reason: Unknown
% 1.51/0.60  % (10359)Termination phase: Finite model building SAT solving
% 1.51/0.60  
% 1.51/0.60  % (10359)Memory used [KB]: 6268
% 1.51/0.60  % (10359)Time elapsed: 0.213 s
% 1.51/0.60  % (10359)Instructions burned: 59 (million)
% 1.51/0.60  % (10359)------------------------------
% 1.51/0.60  % (10359)------------------------------
% 1.51/0.60  % (10357)Instruction limit reached!
% 1.51/0.60  % (10357)------------------------------
% 1.51/0.60  % (10357)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.61  % (10356)Instruction limit reached!
% 1.51/0.61  % (10356)------------------------------
% 1.51/0.61  % (10356)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 1.51/0.61  % (10356)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 1.51/0.61  % (10356)Termination reason: Unknown
% 1.51/0.61  % (10356)Termination phase: Saturation
% 1.51/0.61  
% 1.51/0.61  % (10356)Memory used [KB]: 7291
% 1.51/0.61  % (10356)Time elapsed: 0.049 s
% 1.51/0.61  % (10356)Instructions burned: 69 (million)
% 1.51/0.61  % (10356)------------------------------
% 1.51/0.61  % (10356)------------------------------
% 1.51/0.61  % (10351)Instruction limit reached!
% 1.51/0.61  % (10351)------------------------------
% 1.51/0.61  % (10351)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.62  % (10357)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.62  % (10357)Termination reason: Unknown
% 2.20/0.62  % (10357)Termination phase: Saturation
% 2.20/0.62  
% 2.20/0.62  % (10357)Memory used [KB]: 2942
% 2.20/0.62  % (10357)Time elapsed: 0.187 s
% 2.20/0.62  % (10357)Instructions burned: 76 (million)
% 2.20/0.62  % (10357)------------------------------
% 2.20/0.62  % (10357)------------------------------
% 2.20/0.63  % (10358)Instruction limit reached!
% 2.20/0.63  % (10358)------------------------------
% 2.20/0.63  % (10358)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.63  % (10351)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.63  % (10351)Termination reason: Unknown
% 2.20/0.63  % (10351)Termination phase: Saturation
% 2.20/0.63  
% 2.20/0.63  % (10351)Memory used [KB]: 2174
% 2.20/0.63  % (10351)Time elapsed: 0.233 s
% 2.20/0.63  % (10351)Instructions burned: 52 (million)
% 2.20/0.63  % (10351)------------------------------
% 2.20/0.63  % (10351)------------------------------
% 2.20/0.64  % (10354)Instruction limit reached!
% 2.20/0.64  % (10354)------------------------------
% 2.20/0.64  % (10354)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.64  % (10354)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.64  % (10354)Termination reason: Unknown
% 2.20/0.64  % (10354)Termination phase: Saturation
% 2.20/0.64  
% 2.20/0.64  % (10354)Memory used [KB]: 7931
% 2.20/0.64  % (10354)Time elapsed: 0.220 s
% 2.20/0.64  % (10354)Instructions burned: 101 (million)
% 2.20/0.64  % (10354)------------------------------
% 2.20/0.64  % (10354)------------------------------
% 2.20/0.64  % (10358)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.64  % (10358)Termination reason: Unknown
% 2.20/0.64  % (10358)Termination phase: Saturation
% 2.20/0.64  
% 2.20/0.64  % (10358)Memory used [KB]: 6780
% 2.20/0.64  % (10358)Time elapsed: 0.264 s
% 2.20/0.64  % (10358)Instructions burned: 99 (million)
% 2.20/0.64  % (10358)------------------------------
% 2.20/0.64  % (10358)------------------------------
% 2.20/0.65  % (10446)ott-1_1:6_av=off:cond=on:fsr=off:nwc=3.0:i=211:si=on:rawr=on:rtra=on_0 on theBenchmark for (2998ds/211Mi)
% 2.20/0.67  % (10355)Instruction limit reached!
% 2.20/0.67  % (10355)------------------------------
% 2.20/0.67  % (10355)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.67  % (10368)Instruction limit reached!
% 2.20/0.67  % (10368)------------------------------
% 2.20/0.67  % (10368)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.67  % (10368)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.67  % (10368)Termination reason: Unknown
% 2.20/0.67  % (10368)Termination phase: Saturation
% 2.20/0.67  
% 2.20/0.67  % (10368)Memory used [KB]: 7291
% 2.20/0.67  % (10368)Time elapsed: 0.035 s
% 2.20/0.67  % (10368)Instructions burned: 70 (million)
% 2.20/0.67  % (10368)------------------------------
% 2.20/0.67  % (10368)------------------------------
% 2.20/0.67  % (10355)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.67  % (10355)Termination reason: Unknown
% 2.20/0.67  % (10355)Termination phase: Saturation
% 2.20/0.67  
% 2.20/0.67  % (10355)Memory used [KB]: 8059
% 2.20/0.67  % (10355)Time elapsed: 0.258 s
% 2.20/0.67  % (10355)Instructions burned: 99 (million)
% 2.20/0.67  % (10355)------------------------------
% 2.20/0.67  % (10355)------------------------------
% 2.20/0.67  % (10361)Instruction limit reached!
% 2.20/0.67  % (10361)------------------------------
% 2.20/0.67  % (10361)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.67  % (10361)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.67  % (10361)Termination reason: Unknown
% 2.20/0.67  % (10361)Termination phase: Saturation
% 2.20/0.67  
% 2.20/0.67  % (10361)Memory used [KB]: 3965
% 2.20/0.67  % (10361)Time elapsed: 0.278 s
% 2.20/0.67  % (10361)Instructions burned: 100 (million)
% 2.20/0.67  % (10361)------------------------------
% 2.20/0.67  % (10361)------------------------------
% 2.20/0.68  % (10448)ott+1_1:2_i=920:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/920Mi)
% 2.20/0.69  % (10453)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=940:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/940Mi)
% 2.20/0.69  % (10360)Instruction limit reached!
% 2.20/0.69  % (10360)------------------------------
% 2.20/0.69  % (10360)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.20/0.69  % (10360)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.20/0.69  % (10360)Termination reason: Unknown
% 2.20/0.69  % (10360)Termination phase: Saturation
% 2.20/0.69  
% 2.20/0.69  % (10360)Memory used [KB]: 7931
% 2.20/0.69  % (10360)Time elapsed: 0.258 s
% 2.20/0.69  % (10360)Instructions burned: 100 (million)
% 2.20/0.69  % (10360)------------------------------
% 2.20/0.69  % (10360)------------------------------
% 2.50/0.69  % (10353)Instruction limit reached!
% 2.50/0.69  % (10353)------------------------------
% 2.50/0.69  % (10353)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.50/0.69  % (10353)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.50/0.69  % (10353)Termination reason: Unknown
% 2.50/0.69  % (10353)Termination phase: Saturation
% 2.50/0.69  
% 2.50/0.69  % (10353)Memory used [KB]: 8059
% 2.50/0.69  % (10353)Time elapsed: 0.308 s
% 2.50/0.69  % (10353)Instructions burned: 101 (million)
% 2.50/0.69  % (10353)------------------------------
% 2.50/0.69  % (10353)------------------------------
% 2.50/0.70  % (10447)dis+22_1:128_bsd=on:rp=on:slsq=on:slsqc=1:slsqr=1,6:sp=frequency:spb=goal:thsq=on:thsqc=16:thsqd=1:thsql=off:i=90:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/90Mi)
% 2.50/0.70  % (10450)ott+10_1:50_bsr=unit_only:drc=off:fd=preordered:sp=frequency:i=747:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/747Mi)
% 2.50/0.70  % (10449)ott+1_1:7_bd=off:i=934:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/934Mi)
% 2.50/0.71  % (10363)Instruction limit reached!
% 2.50/0.71  % (10363)------------------------------
% 2.50/0.71  % (10363)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.50/0.72  % (10363)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.50/0.72  % (10363)Termination reason: Unknown
% 2.50/0.72  % (10363)Termination phase: Saturation
% 2.50/0.72  
% 2.50/0.72  % (10363)Memory used [KB]: 9083
% 2.50/0.72  % (10363)Time elapsed: 0.301 s
% 2.50/0.72  % (10363)Instructions burned: 138 (million)
% 2.50/0.72  % (10363)------------------------------
% 2.50/0.72  % (10363)------------------------------
% 2.50/0.72  % (10451)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=655:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/655Mi)
% 2.50/0.73  % (10362)Instruction limit reached!
% 2.50/0.73  % (10362)------------------------------
% 2.50/0.73  % (10362)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.50/0.74  % (10452)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/68Mi)
% 2.50/0.74  % (10362)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.50/0.74  % (10362)Termination reason: Unknown
% 2.50/0.74  % (10362)Termination phase: Saturation
% 2.50/0.74  
% 2.50/0.74  % (10362)Memory used [KB]: 9338
% 2.50/0.74  % (10362)Time elapsed: 0.327 s
% 2.50/0.74  % (10362)Instructions burned: 177 (million)
% 2.50/0.74  % (10362)------------------------------
% 2.50/0.74  % (10362)------------------------------
% 2.50/0.75  % (10456)dis+21_1:1_av=off:er=filter:slsq=on:slsqc=0:slsqr=1,1:sp=frequency:to=lpo:i=2016:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/2016Mi)
% 2.50/0.75  % (10455)dis+22_1:128_bsd=on:rp=on:slsq=on:slsqc=1:slsqr=1,6:sp=frequency:spb=goal:thsq=on:thsqc=16:thsqd=1:thsql=off:i=90:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/90Mi)
% 2.50/0.76  % (10458)ott+11_9:8_add=large:afp=10:amm=off:fsd=on:fsr=off:lma=on:nm=0:nwc=2.4:s2a=on:s2agt=10:sas=z3:sp=reverse_arity:tha=some:thi=overlap:i=4958:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/4958Mi)
% 2.50/0.76  % (10457)dis+10_1:2_atotf=0.3:i=3735:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/3735Mi)
% 2.75/0.76  WARNING Broken Constraint: if sine_depth(2) has been set then sine_selection(off) is not equal to off
% 2.75/0.76  % (10454)ott+11_4:1_br=off:fde=none:s2a=on:sd=2:sp=frequency:urr=on:i=981:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/981Mi)
% 2.75/0.77  % (10459)ott+10_1:32_bd=off:fsr=off:newcnf=on:tgt=full:i=4959:si=on:rawr=on:rtra=on_0 on theBenchmark for (2997ds/4959Mi)
% 2.77/0.79  % (10461)ott+3_1:1_atotf=0.2:fsr=off:kws=precedence:sp=weighted_frequency:spb=intro:tgt=ground:i=4931:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/4931Mi)
% 2.77/0.80  % (10460)ott+10_1:1_kws=precedence:tgt=ground:i=4756:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/4756Mi)
% 2.84/0.80  % (10463)ott+11_9:8_amm=off:bsd=on:etr=on:fsd=on:fsr=off:lma=on:newcnf=on:nm=0:nwc=3.0:s2a=on:s2agt=10:sas=z3:tha=some:i=1824:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/1824Mi)
% 2.84/0.81  % (10462)ins+10_1:1_awrs=decay:awrsf=30:bsr=unit_only:foolp=on:igrr=8/457:igs=10:igwr=on:nwc=1.5:sp=weighted_frequency:to=lpo:uhcvi=on:i=68:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/68Mi)
% 2.84/0.82  % (10369)Instruction limit reached!
% 2.84/0.82  % (10369)------------------------------
% 2.84/0.82  % (10369)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.84/0.82  % (10369)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.84/0.82  % (10369)Termination reason: Unknown
% 2.84/0.82  % (10369)Termination phase: Saturation
% 2.84/0.82  
% 2.84/0.82  % (10369)Memory used [KB]: 5628
% 2.84/0.82  % (10369)Time elapsed: 0.371 s
% 2.84/0.82  % (10369)Instructions burned: 177 (million)
% 2.84/0.82  % (10369)------------------------------
% 2.84/0.82  % (10369)------------------------------
% 2.84/0.82  % (10452)Instruction limit reached!
% 2.84/0.82  % (10452)------------------------------
% 2.84/0.82  % (10452)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.84/0.82  % (10452)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.84/0.82  % (10452)Termination reason: Unknown
% 2.84/0.82  % (10452)Termination phase: Saturation
% 2.84/0.82  
% 2.84/0.82  % (10452)Memory used [KB]: 7291
% 2.84/0.82  % (10452)Time elapsed: 0.031 s
% 2.84/0.82  % (10452)Instructions burned: 69 (million)
% 2.84/0.82  % (10452)------------------------------
% 2.84/0.82  % (10452)------------------------------
% 2.97/0.84  % (10447)Instruction limit reached!
% 2.97/0.84  % (10447)------------------------------
% 2.97/0.84  % (10447)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.97/0.84  % (10447)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.97/0.84  % (10447)Termination reason: Unknown
% 2.97/0.84  % (10447)Termination phase: Saturation
% 2.97/0.84  
% 2.97/0.84  % (10447)Memory used [KB]: 6652
% 2.97/0.84  % (10447)Time elapsed: 0.270 s
% 2.97/0.84  % (10447)Instructions burned: 90 (million)
% 2.97/0.84  % (10447)------------------------------
% 2.97/0.84  % (10447)------------------------------
% 2.97/0.85  % (10464)dis+34_1:32_abs=on:add=off:bsr=on:gsp=on:sp=weighted_frequency:i=2134:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/2134Mi)
% 2.97/0.85  % (10465)ott-1_1:1_sp=const_frequency:i=2891:si=on:rawr=on:rtra=on_0 on theBenchmark for (2996ds/2891Mi)
% 2.97/0.86  % (10466)dis+2_1:64_add=large:bce=on:bd=off:i=4585:si=on:rawr=on:rtra=on_0 on theBenchmark for (2995ds/4585Mi)
% 2.97/0.90  % (10455)Instruction limit reached!
% 2.97/0.90  % (10455)------------------------------
% 2.97/0.90  % (10455)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.97/0.91  % (10462)Instruction limit reached!
% 2.97/0.91  % (10462)------------------------------
% 2.97/0.91  % (10462)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 2.97/0.91  % (10462)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.97/0.91  % (10462)Termination reason: Unknown
% 2.97/0.91  % (10462)Termination phase: Saturation
% 2.97/0.91  
% 2.97/0.91  % (10462)Memory used [KB]: 7291
% 2.97/0.91  % (10462)Time elapsed: 0.029 s
% 2.97/0.91  % (10462)Instructions burned: 70 (million)
% 2.97/0.91  % (10462)------------------------------
% 2.97/0.91  % (10462)------------------------------
% 2.97/0.91  % (10455)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 2.97/0.91  % (10455)Termination reason: Unknown
% 2.97/0.91  % (10455)Termination phase: Saturation
% 2.97/0.91  
% 2.97/0.91  % (10455)Memory used [KB]: 6780
% 2.97/0.91  % (10455)Time elapsed: 0.252 s
% 2.97/0.91  % (10455)Instructions burned: 91 (million)
% 2.97/0.91  % (10455)------------------------------
% 2.97/0.91  % (10455)------------------------------
% 3.35/0.93  % (10411)First to succeed.
% 3.35/0.93  % (10411)Refutation found. Thanks to Tanya!
% 3.35/0.93  % SZS status Unsatisfiable for theBenchmark
% 3.35/0.93  % SZS output start Proof for theBenchmark
% See solution above
% 3.35/0.93  % (10411)------------------------------
% 3.35/0.93  % (10411)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 3.35/0.93  % (10411)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 3.35/0.93  % (10411)Termination reason: Refutation
% 3.35/0.93  
% 3.35/0.93  % (10411)Memory used [KB]: 8443
% 3.35/0.93  % (10411)Time elapsed: 0.423 s
% 3.35/0.93  % (10411)Instructions burned: 218 (million)
% 3.35/0.93  % (10411)------------------------------
% 3.35/0.93  % (10411)------------------------------
% 3.35/0.93  % (10340)Success in time 0.601 s
%------------------------------------------------------------------------------