TSTP Solution File: NUM845+2 by SnakeForV---1.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SnakeForV---1.0
% Problem  : NUM845+2 : TPTP v8.1.0. Released v4.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s

% Computer : n022.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 18:02:33 EDT 2022

% Result   : Theorem 0.19s 0.55s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   18
%            Number of leaves      :    8
% Syntax   : Number of formulae    :   53 (  37 unt;   0 def)
%            Number of atoms       :   71 (  70 equ)
%            Maximal formula atoms :    4 (   1 avg)
%            Number of connectives :   33 (  15   ~;   5   |;   8   &)
%                                         (   0 <=>;   5  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   3 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   50 (  48   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f118,plain,
    $false,
    inference(subsumption_resolution,[],[f117,f102]) ).

fof(f102,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) != vplus(v1,vplus(sK0,vmul(vd411,vplus(v1,sK0)))),
    inference(forward_demodulation,[],[f99,f46]) ).

fof(f46,plain,
    ! [X0,X1] : vplus(X1,X0) = vplus(X0,X1),
    inference(cnf_transformation,[],[f25]) ).

fof(f25,plain,
    ! [X0,X1] : vplus(X1,X0) = vplus(X0,X1),
    inference(rectify,[],[f13]) ).

fof(f13,axiom,
    ! [X5,X4] : vplus(X5,X4) = vplus(X4,X5),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','ass(cond(61, 0), 0)') ).

fof(f99,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) != vplus(v1,vplus(vmul(vd411,vplus(v1,sK0)),sK0)),
    inference(superposition,[],[f75,f70]) ).

fof(f70,plain,
    ! [X0,X1] : vplus(X1,vplus(v1,X0)) = vplus(v1,vplus(X1,X0)),
    inference(definition_unfolding,[],[f56,f42,f42]) ).

fof(f42,plain,
    ! [X0] : vsucc(X0) = vplus(v1,X0),
    inference(cnf_transformation,[],[f23]) ).

fof(f23,plain,
    ! [X0] : vsucc(X0) = vplus(v1,X0),
    inference(rectify,[],[f14]) ).

fof(f14,axiom,
    ! [X6] : vplus(v1,X6) = vsucc(X6),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','ass(cond(43, 0), 0)') ).

fof(f56,plain,
    ! [X0,X1] : vplus(X1,vsucc(X0)) = vsucc(vplus(X1,X0)),
    inference(cnf_transformation,[],[f24]) ).

fof(f24,plain,
    ! [X0,X1] :
      ( vplus(X1,vsucc(X0)) = vsucc(vplus(X1,X0))
      & vsucc(X1) = vplus(X1,v1) ),
    inference(rectify,[],[f16]) ).

fof(f16,axiom,
    ! [X11,X10] :
      ( vplus(X10,vsucc(X11)) = vsucc(vplus(X10,X11))
      & vplus(X10,v1) = vsucc(X10) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','qu(cond(conseq(axiom(3)), 3), and(holds(definiens(29), 45, 0), holds(definiens(29), 44, 0)))') ).

fof(f75,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) != vplus(vmul(vd411,vplus(v1,sK0)),vplus(v1,sK0)),
    inference(forward_demodulation,[],[f63,f46]) ).

fof(f63,plain,
    vplus(vmul(vd411,vplus(v1,sK0)),vplus(v1,sK0)) != vmul(vplus(v1,vd411),vplus(v1,sK0)),
    inference(definition_unfolding,[],[f48,f42,f42,f42,f42]) ).

fof(f48,plain,
    vplus(vmul(vd411,vsucc(sK0)),vsucc(sK0)) != vmul(vsucc(vd411),vsucc(sK0)),
    inference(cnf_transformation,[],[f40]) ).

fof(f40,plain,
    ( vplus(vmul(vd411,vsucc(sK0)),vsucc(sK0)) != vmul(vsucc(vd411),vsucc(sK0))
    & vplus(vmul(vd411,sK0),sK0) = vmul(vsucc(vd411),sK0) ),
    inference(skolemisation,[status(esa),new_symbols(skolem,[sK0])],[f35,f39]) ).

fof(f39,plain,
    ( ? [X0] :
        ( vmul(vsucc(vd411),vsucc(X0)) != vplus(vmul(vd411,vsucc(X0)),vsucc(X0))
        & vmul(vsucc(vd411),X0) = vplus(vmul(vd411,X0),X0) )
   => ( vplus(vmul(vd411,vsucc(sK0)),vsucc(sK0)) != vmul(vsucc(vd411),vsucc(sK0))
      & vplus(vmul(vd411,sK0),sK0) = vmul(vsucc(vd411),sK0) ) ),
    introduced(choice_axiom,[]) ).

fof(f35,plain,
    ? [X0] :
      ( vmul(vsucc(vd411),vsucc(X0)) != vplus(vmul(vd411,vsucc(X0)),vsucc(X0))
      & vmul(vsucc(vd411),X0) = vplus(vmul(vd411,X0),X0) ),
    inference(ennf_transformation,[],[f2]) ).

fof(f2,negated_conjecture,
    ~ ! [X0] :
        ( vmul(vsucc(vd411),X0) = vplus(vmul(vd411,X0),X0)
       => vmul(vsucc(vd411),vsucc(X0)) = vplus(vmul(vd411,vsucc(X0)),vsucc(X0)) ),
    inference(negated_conjecture,[],[f1]) ).

fof(f1,conjecture,
    ! [X0] :
      ( vmul(vsucc(vd411),X0) = vplus(vmul(vd411,X0),X0)
     => vmul(vsucc(vd411),vsucc(X0)) = vplus(vmul(vd411,vsucc(X0)),vsucc(X0)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','qu(ind(267), imp(267))') ).

fof(f117,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) = vplus(v1,vplus(sK0,vmul(vd411,vplus(v1,sK0)))),
    inference(forward_demodulation,[],[f116,f73]) ).

fof(f73,plain,
    ! [X0,X1] : vmul(X1,vplus(v1,X0)) = vplus(vmul(X1,X0),X1),
    inference(definition_unfolding,[],[f58,f42]) ).

fof(f58,plain,
    ! [X0,X1] : vmul(X1,vsucc(X0)) = vplus(vmul(X1,X0),X1),
    inference(cnf_transformation,[],[f18]) ).

fof(f18,plain,
    ! [X0,X1] :
      ( vmul(X1,v1) = X1
      & vmul(X1,vsucc(X0)) = vplus(vmul(X1,X0),X1) ),
    inference(rectify,[],[f12]) ).

fof(f12,axiom,
    ! [X3,X2] :
      ( vmul(X2,vsucc(X3)) = vplus(vmul(X2,X3),X2)
      & vmul(X2,v1) = X2 ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','qu(cond(conseq(axiom(3)), 32), and(holds(definiens(249), 399, 0), holds(definiens(249), 398, 0)))') ).

fof(f116,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) = vplus(v1,vplus(sK0,vplus(vmul(vd411,sK0),vd411))),
    inference(backward_demodulation,[],[f98,f109]) ).

fof(f109,plain,
    ! [X2] : vplus(sK0,vplus(vmul(vd411,sK0),X2)) = vplus(vmul(vd411,sK0),vplus(X2,sK0)),
    inference(superposition,[],[f104,f46]) ).

fof(f104,plain,
    ! [X0] : vplus(vmul(vd411,sK0),vplus(sK0,X0)) = vplus(sK0,vplus(vmul(vd411,sK0),X0)),
    inference(backward_demodulation,[],[f88,f103]) ).

fof(f103,plain,
    ! [X0] : vplus(sK0,vplus(vmul(vd411,sK0),X0)) = vplus(vmul(vplus(vd411,v1),sK0),X0),
    inference(superposition,[],[f51,f90]) ).

fof(f90,plain,
    vmul(vplus(vd411,v1),sK0) = vplus(sK0,vmul(vd411,sK0)),
    inference(superposition,[],[f46,f74]) ).

fof(f74,plain,
    vplus(vmul(vd411,sK0),sK0) = vmul(vplus(vd411,v1),sK0),
    inference(forward_demodulation,[],[f64,f46]) ).

fof(f64,plain,
    vplus(vmul(vd411,sK0),sK0) = vmul(vplus(v1,vd411),sK0),
    inference(definition_unfolding,[],[f47,f42]) ).

fof(f47,plain,
    vplus(vmul(vd411,sK0),sK0) = vmul(vsucc(vd411),sK0),
    inference(cnf_transformation,[],[f40]) ).

fof(f51,plain,
    ! [X2,X0,X1] : vplus(X2,vplus(X0,X1)) = vplus(vplus(X2,X0),X1),
    inference(cnf_transformation,[],[f41]) ).

fof(f41,plain,
    ! [X0,X1,X2] : vplus(X2,vplus(X0,X1)) = vplus(vplus(X2,X0),X1),
    inference(rectify,[],[f17]) ).

fof(f17,plain,
    ! [X2,X0,X1] : vplus(X1,vplus(X2,X0)) = vplus(vplus(X1,X2),X0),
    inference(rectify,[],[f15]) ).

fof(f15,axiom,
    ! [X9,X7,X8] : vplus(vplus(X7,X8),X9) = vplus(X7,vplus(X8,X9)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','ass(cond(33, 0), 0)') ).

fof(f88,plain,
    ! [X0] : vplus(vmul(vd411,sK0),vplus(sK0,X0)) = vplus(vmul(vplus(vd411,v1),sK0),X0),
    inference(superposition,[],[f51,f74]) ).

fof(f98,plain,
    vmul(vplus(vd411,v1),vplus(v1,sK0)) = vplus(v1,vplus(vmul(vd411,sK0),vplus(vd411,sK0))),
    inference(forward_demodulation,[],[f97,f46]) ).

fof(f97,plain,
    vplus(v1,vplus(vmul(vd411,sK0),vplus(vd411,sK0))) = vmul(vplus(v1,vd411),vplus(v1,sK0)),
    inference(forward_demodulation,[],[f96,f73]) ).

fof(f96,plain,
    vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(v1,vplus(vmul(vd411,sK0),vplus(vd411,sK0))),
    inference(forward_demodulation,[],[f95,f46]) ).

fof(f95,plain,
    vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(v1,vplus(vmul(vd411,sK0),vplus(sK0,vd411))),
    inference(forward_demodulation,[],[f94,f70]) ).

fof(f94,plain,
    vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(vmul(vd411,sK0),vplus(v1,vplus(sK0,vd411))),
    inference(forward_demodulation,[],[f93,f70]) ).

fof(f93,plain,
    vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(vmul(vd411,sK0),vplus(sK0,vplus(v1,vd411))),
    inference(forward_demodulation,[],[f92,f88]) ).

fof(f92,plain,
    vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(vmul(vplus(vd411,v1),sK0),vplus(v1,vd411)),
    inference(trivial_inequality_removal,[],[f91]) ).

fof(f91,plain,
    ( vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(vmul(vplus(vd411,v1),sK0),vplus(v1,vd411))
    | vmul(vplus(vd411,v1),sK0) != vmul(vplus(vd411,v1),sK0) ),
    inference(forward_demodulation,[],[f82,f46]) ).

fof(f82,plain,
    ( vmul(vplus(vd411,v1),sK0) != vmul(vplus(v1,vd411),sK0)
    | vplus(vmul(vplus(v1,vd411),sK0),vplus(v1,vd411)) = vplus(vmul(vplus(vd411,v1),sK0),vplus(v1,vd411)) ),
    inference(superposition,[],[f66,f74]) ).

fof(f66,plain,
    ! [X0] :
      ( vplus(vplus(vmul(vd411,X0),X0),vplus(v1,vd411)) = vplus(vmul(vplus(v1,vd411),X0),vplus(v1,vd411))
      | vplus(vmul(vd411,X0),X0) != vmul(vplus(v1,vd411),X0) ),
    inference(definition_unfolding,[],[f50,f42,f42,f42,f42]) ).

fof(f50,plain,
    ! [X0] :
      ( vplus(vplus(vmul(vd411,X0),X0),vsucc(vd411)) = vplus(vmul(vsucc(vd411),X0),vsucc(vd411))
      | vmul(vsucc(vd411),X0) != vplus(vmul(vd411,X0),X0) ),
    inference(cnf_transformation,[],[f33]) ).

fof(f33,plain,
    ! [X0] :
      ( vplus(vplus(vmul(vd411,X0),X0),vsucc(vd411)) = vplus(vmul(vsucc(vd411),X0),vsucc(vd411))
      | vmul(vsucc(vd411),X0) != vplus(vmul(vd411,X0),X0) ),
    inference(ennf_transformation,[],[f20]) ).

fof(f20,plain,
    ! [X0] :
      ( vmul(vsucc(vd411),X0) = vplus(vmul(vd411,X0),X0)
     => vplus(vplus(vmul(vd411,X0),X0),vsucc(vd411)) = vplus(vmul(vsucc(vd411),X0),vsucc(vd411)) ),
    inference(rectify,[],[f9]) ).

fof(f9,axiom,
    ! [X1] :
      ( vmul(vsucc(vd411),X1) = vplus(vmul(vd411,X1),X1)
     => vplus(vplus(vmul(vd411,X1),X1),vsucc(vd411)) = vplus(vmul(vsucc(vd411),X1),vsucc(vd411)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p','ass(cond(conseq(263), 1), 6)') ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem    : NUM845+2 : TPTP v8.1.0. Released v4.1.0.
% 0.10/0.13  % Command    : vampire --input_syntax tptp --proof tptp --output_axiom_names on --mode portfolio --schedule snake_tptp_uns --cores 0 -t %d %s
% 0.13/0.34  % Computer : n022.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit   : 300
% 0.13/0.34  % WCLimit    : 300
% 0.13/0.34  % DateTime   : Tue Aug 30 09:03:26 EDT 2022
% 0.13/0.34  % CPUTime    : 
% 0.19/0.53  % (18117)dis-10_3:2_amm=sco:ep=RS:fsr=off:nm=10:sd=2:sos=on:ss=axioms:st=3.0:i=11:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/11Mi)
% 0.19/0.53  % (18126)dis+2_3:1_aac=none:abs=on:ep=R:lcm=reverse:nwc=10.0:sos=on:sp=const_frequency:spb=units:urr=ec_only:i=8:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/8Mi)
% 0.19/0.53  % (18126)Refutation not found, incomplete strategy% (18126)------------------------------
% 0.19/0.53  % (18126)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.53  % (18126)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.53  % (18126)Termination reason: Refutation not found, incomplete strategy
% 0.19/0.53  
% 0.19/0.53  % (18126)Memory used [KB]: 5884
% 0.19/0.53  % (18126)Time elapsed: 0.126 s
% 0.19/0.53  % (18126)Instructions burned: 2 (million)
% 0.19/0.53  % (18126)------------------------------
% 0.19/0.53  % (18126)------------------------------
% 0.19/0.53  % (18123)lrs+11_1:1_plsq=on:plsqc=1:plsqr=32,1:ss=included:i=95:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/95Mi)
% 0.19/0.53  % (18117)Refutation not found, incomplete strategy% (18117)------------------------------
% 0.19/0.53  % (18117)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.53  % (18117)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.53  % (18117)Termination reason: Refutation not found, incomplete strategy
% 0.19/0.53  
% 0.19/0.53  % (18117)Memory used [KB]: 5884
% 0.19/0.53  % (18117)Time elapsed: 0.126 s
% 0.19/0.53  % (18117)Instructions burned: 2 (million)
% 0.19/0.53  % (18117)------------------------------
% 0.19/0.53  % (18117)------------------------------
% 0.19/0.54  % (18113)lrs+10_1:1_drc=off:sp=reverse_frequency:spb=goal:to=lpo:i=7:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/7Mi)
% 0.19/0.54  % (18112)lrs+10_1:1_ins=3:sp=reverse_frequency:spb=goal:to=lpo:i=3:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/3Mi)
% 0.19/0.54  % (18105)lrs+2_1:1_lcm=reverse:lma=on:sos=all:spb=goal_then_units:ss=included:urr=on:i=39:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/39Mi)
% 0.19/0.54  % (18105)First to succeed.
% 0.19/0.54  % (18104)dis+1010_1:50_awrs=decay:awrsf=128:nwc=10.0:s2pl=no:sp=frequency:ss=axioms:i=39:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/39Mi)
% 0.19/0.54  % (18110)lrs+10_1:4_av=off:bs=unit_only:bsr=unit_only:ep=RS:s2a=on:sos=on:sp=frequency:to=lpo:i=16:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/16Mi)
% 0.19/0.55  % (18110)Refutation not found, incomplete strategy% (18110)------------------------------
% 0.19/0.55  % (18110)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.55  % (18110)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.55  % (18110)Termination reason: Refutation not found, incomplete strategy
% 0.19/0.55  
% 0.19/0.55  % (18110)Memory used [KB]: 1407
% 0.19/0.55  % (18110)Time elapsed: 0.139 s
% 0.19/0.55  % (18110)Instructions burned: 3 (million)
% 0.19/0.55  % (18110)------------------------------
% 0.19/0.55  % (18110)------------------------------
% 0.19/0.55  % (18125)dis+21_1:1_aac=none:abs=on:er=known:fde=none:fsr=off:nwc=5.0:s2a=on:s2at=4.0:sp=const_frequency:to=lpo:urr=ec_only:i=25:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/25Mi)
% 0.19/0.55  % (18118)dis+1010_1:1_bs=on:ep=RS:erd=off:newcnf=on:nwc=10.0:s2a=on:sgt=32:ss=axioms:i=30:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/30Mi)
% 0.19/0.55  % (18120)dis+1010_2:3_fs=off:fsr=off:nm=0:nwc=5.0:s2a=on:s2agt=32:i=82:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/82Mi)
% 0.19/0.55  % (18121)dis+10_1:1_av=off:sos=on:sp=reverse_arity:ss=included:st=2.0:to=lpo:urr=ec_only:i=45:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/45Mi)
% 0.19/0.55  % (18099)lrs+10_1:1_gsp=on:sd=1:sgt=32:sos=on:ss=axioms:i=13:si=on:rawr=on:rtra=on_0 on theBenchmark for (2999ds/13Mi)
% 0.19/0.55  % (18118)Refutation not found, incomplete strategy% (18118)------------------------------
% 0.19/0.55  % (18118)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.55  % (18118)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.55  % (18118)Termination reason: Refutation not found, incomplete strategy
% 0.19/0.55  
% 0.19/0.55  % (18118)Memory used [KB]: 5884
% 0.19/0.55  % (18118)Time elapsed: 0.141 s
% 0.19/0.55  % (18118)Instructions burned: 4 (million)
% 0.19/0.55  % (18118)------------------------------
% 0.19/0.55  % (18118)------------------------------
% 0.19/0.55  % (18113)Instruction limit reached!
% 0.19/0.55  % (18113)------------------------------
% 0.19/0.55  % (18113)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.55  % (18113)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.55  % (18113)Termination reason: Unknown
% 0.19/0.55  % (18113)Termination phase: Saturation
% 0.19/0.55  
% 0.19/0.55  % (18113)Memory used [KB]: 6012
% 0.19/0.55  % (18105)Refutation found. Thanks to Tanya!
% 0.19/0.55  % SZS status Theorem for theBenchmark
% 0.19/0.55  % SZS output start Proof for theBenchmark
% See solution above
% 0.19/0.55  % (18105)------------------------------
% 0.19/0.55  % (18105)Version: Vampire 4.7 (commit 807e37dd9 on 2022-08-23 09:55:27 +0200)
% 0.19/0.55  % (18105)Linked with Z3 4.8.13.0 f03d756e086f81f2596157241e0decfb1c982299 z3-4.8.4-5390-gf03d756e0
% 0.19/0.55  % (18105)Termination reason: Refutation
% 0.19/0.55  
% 0.19/0.55  % (18105)Memory used [KB]: 6012
% 0.19/0.55  % (18105)Time elapsed: 0.130 s
% 0.19/0.55  % (18105)Instructions burned: 5 (million)
% 0.19/0.55  % (18105)------------------------------
% 0.19/0.55  % (18105)------------------------------
% 0.19/0.55  % (18097)Success in time 0.203 s
%------------------------------------------------------------------------------