TSTP Solution File: PRO003+2 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : PRO003+2 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n027.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  : 600s
% DateTime : Mon Jul 18 17:53:42 EDT 2022

% Result   : Theorem 32.05s 32.28s
% Output   : Refutation 33.11s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   20
%            Number of leaves      :   28
% Syntax   : Number of clauses     :   86 (  22 unt;   9 nHn;  86 RR)
%            Number of literals    :  237 (   0 equ; 146 neg)
%            Maximal clause size   :    8 (   2 avg)
%            Maximal term depth    :    5 (   1 avg)
%            Number of predicates  :   12 (  11 usr;   1 prp; 0-3 aty)
%            Number of functors    :   15 (  15 usr;  10 con; 0-3 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    atomic(tptp4),
    file('PRO003+2.p',unknown),
    [] ).

cnf(3,axiom,
    atomic(tptp3),
    file('PRO003+2.p',unknown),
    [] ).

cnf(5,axiom,
    atomic(tptp1),
    file('PRO003+2.p',unknown),
    [] ).

cnf(6,axiom,
    occurrence_of(skc1,tptp0),
    file('PRO003+2.p',unknown),
    [] ).

cnf(10,axiom,
    occurrence_of(skf32(u),tptp4),
    file('PRO003+2.p',unknown),
    [] ).

cnf(11,axiom,
    occurrence_of(skf31(u),tptp3),
    file('PRO003+2.p',unknown),
    [] ).

cnf(15,axiom,
    ~ equal(tptp1,tptp3),
    file('PRO003+2.p',unknown),
    [] ).

cnf(18,axiom,
    occurrence_of(skf33(u),tptp1),
    file('PRO003+2.p',unknown),
    [] ).

cnf(24,axiom,
    ( ~ occurrence_of(u,v)
    | activity(v) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(25,axiom,
    ( ~ occurrence_of(u,v)
    | activity_occurrence(u) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(27,axiom,
    ( ~ next_subocc(u,v,w)
    | arboreal(u) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(30,axiom,
    ( ~ root_occ(u,v)
    | subactivity_occurrence(u,v) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(31,axiom,
    ( ~ leaf_occ(u,v)
    | subactivity_occurrence(u,v) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(32,axiom,
    ( ~ activity_occurrence(u)
    | occurrence_of(u,skf23(u)) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(35,axiom,
    ( ~ occurrence_of(u,tptp0)
    | root_occ(skf32(u),u) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(36,axiom,
    ( ~ occurrence_of(u,tptp0)
    | leaf_occ(skf31(u),u) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(37,axiom,
    ( ~ next_subocc(u,v,w)
    | min_precedes(u,v,w) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(44,axiom,
    ( ~ atomic(u)
    | ~ occurrence_of(v,u)
    | arboreal(v) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(56,axiom,
    ( ~ occurrence_of(u,tptp0)
    | next_subocc(skf32(u),skf31(u),tptp0) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(58,axiom,
    ( ~ occurrence_of(u,v)
    | ~ occurrence_of(u,w)
    | equal(w,v) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(61,axiom,
    ( ~ min_precedes(u,v,w)
    | occurrence_of(skf25(v,u,w),w) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(62,axiom,
    ( ~ min_precedes(u,v,w)
    | subactivity_occurrence(u,skf25(v,u,x)) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(63,axiom,
    ( ~ min_precedes(u,v,w)
    | subactivity_occurrence(v,skf25(v,x,y)) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(70,axiom,
    ( ~ root_occ(u,v)
    | ~ occurrence_of(v,w)
    | ~ min_precedes(x,u,w) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(71,axiom,
    ( ~ leaf_occ(u,v)
    | ~ occurrence_of(v,w)
    | ~ min_precedes(u,x,w) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(72,axiom,
    ( ~ root_occ(u,v)
    | ~ occurrence_of(v,tptp0)
    | next_subocc(u,skf33(u),tptp0) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(77,axiom,
    ( ~ next_subocc(u,v,w)
    | ~ min_precedes(x,v,w)
    | ~ min_precedes(u,x,w) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(83,axiom,
    ( ~ arboreal(u)
    | ~ arboreal(v)
    | ~ subactivity_occurrence(u,w)
    | ~ occurrence_of(w,x)
    | ~ subactivity_occurrence(v,w)
    | equal(v,u)
    | min_precedes(u,v,x)
    | min_precedes(v,u,x) ),
    file('PRO003+2.p',unknown),
    [] ).

cnf(87,plain,
    ( ~ root_occ(u,skc1)
    | ~ min_precedes(v,u,tptp0) ),
    inference(res,[status(thm),theory(equality)],[6,70]),
    [iquote('0:Res:6.0,70.0')] ).

cnf(96,plain,
    root_occ(skf32(skc1),skc1),
    inference(res,[status(thm),theory(equality)],[6,35]),
    [iquote('0:Res:6.0,35.0')] ).

cnf(100,plain,
    ( ~ root_occ(u,skc1)
    | next_subocc(u,skf33(u),tptp0) ),
    inference(res,[status(thm),theory(equality)],[6,72]),
    [iquote('0:Res:6.0,72.1')] ).

cnf(112,plain,
    activity(tptp1),
    inference(res,[status(thm),theory(equality)],[18,24]),
    [iquote('0:Res:18.0,24.0')] ).

cnf(113,plain,
    activity(tptp3),
    inference(res,[status(thm),theory(equality)],[11,24]),
    [iquote('0:Res:11.0,24.0')] ).

cnf(114,plain,
    activity(tptp4),
    inference(res,[status(thm),theory(equality)],[10,24]),
    [iquote('0:Res:10.0,24.0')] ).

cnf(119,plain,
    activity_occurrence(skf33(u)),
    inference(res,[status(thm),theory(equality)],[18,25]),
    [iquote('0:Res:18.0,25.0')] ).

cnf(120,plain,
    activity_occurrence(skf31(u)),
    inference(res,[status(thm),theory(equality)],[11,25]),
    [iquote('0:Res:11.0,25.0')] ).

cnf(121,plain,
    activity_occurrence(skf32(u)),
    inference(res,[status(thm),theory(equality)],[10,25]),
    [iquote('0:Res:10.0,25.0')] ).

cnf(145,plain,
    ( ~ atomic(tptp1)
    | arboreal(skf33(u)) ),
    inference(res,[status(thm),theory(equality)],[18,44]),
    [iquote('0:Res:18.0,44.1')] ).

cnf(146,plain,
    ( ~ atomic(tptp3)
    | arboreal(skf31(u)) ),
    inference(res,[status(thm),theory(equality)],[11,44]),
    [iquote('0:Res:11.0,44.1')] ).

cnf(147,plain,
    ( ~ atomic(tptp4)
    | arboreal(skf32(u)) ),
    inference(res,[status(thm),theory(equality)],[10,44]),
    [iquote('0:Res:10.0,44.1')] ).

cnf(149,plain,
    arboreal(skf33(u)),
    inference(ssi,[status(thm)],[145,5,112]),
    [iquote('0:SSi:145.0,5.0,112.0')] ).

cnf(150,plain,
    arboreal(skf31(u)),
    inference(ssi,[status(thm)],[146,3,113]),
    [iquote('0:SSi:146.0,3.0,113.0')] ).

cnf(151,plain,
    arboreal(skf32(u)),
    inference(ssi,[status(thm)],[147,2,114]),
    [iquote('0:SSi:147.0,2.0,114.0')] ).

cnf(152,plain,
    ( ~ root_occ(u,skc1)
    | arboreal(u) ),
    inference(res,[status(thm),theory(equality)],[100,27]),
    [iquote('0:Res:100.1,27.0')] ).

cnf(216,plain,
    ( ~ root_occ(u,skc1)
    | min_precedes(u,skf33(u),tptp0) ),
    inference(res,[status(thm),theory(equality)],[100,37]),
    [iquote('0:Res:100.1,37.0')] ).

cnf(332,plain,
    ( ~ occurrence_of(skf33(u),v)
    | equal(v,tptp1) ),
    inference(res,[status(thm),theory(equality)],[18,58]),
    [iquote('0:Res:18.0,58.0')] ).

cnf(333,plain,
    ( ~ occurrence_of(skf31(u),v)
    | equal(v,tptp3) ),
    inference(res,[status(thm),theory(equality)],[11,58]),
    [iquote('0:Res:11.0,58.0')] ).

cnf(343,plain,
    ( ~ activity_occurrence(skf33(u))
    | equal(skf23(skf33(u)),tptp1) ),
    inference(res,[status(thm),theory(equality)],[32,332]),
    [iquote('0:Res:32.1,332.0')] ).

cnf(347,plain,
    equal(skf23(skf33(u)),tptp1),
    inference(ssi,[status(thm)],[343,119,149]),
    [iquote('0:SSi:343.0,119.0,149.0')] ).

cnf(353,plain,
    ( ~ activity_occurrence(skf31(u))
    | equal(skf23(skf31(u)),tptp3) ),
    inference(res,[status(thm),theory(equality)],[32,333]),
    [iquote('0:Res:32.1,333.0')] ).

cnf(357,plain,
    equal(skf23(skf31(u)),tptp3),
    inference(ssi,[status(thm)],[353,120,150]),
    [iquote('0:SSi:353.0,120.0,150.0')] ).

cnf(514,plain,
    ( ~ root_occ(u,skc1)
    | subactivity_occurrence(u,skf25(skf33(u),u,v)) ),
    inference(res,[status(thm),theory(equality)],[216,62]),
    [iquote('0:Res:216.1,62.0')] ).

cnf(527,plain,
    ( ~ root_occ(u,skc1)
    | subactivity_occurrence(skf33(u),skf25(skf33(u),v,w)) ),
    inference(res,[status(thm),theory(equality)],[216,63]),
    [iquote('0:Res:216.1,63.0')] ).

cnf(558,plain,
    ( ~ occurrence_of(u,tptp0)
    | ~ occurrence_of(u,tptp0)
    | next_subocc(skf32(u),skf33(skf32(u)),tptp0) ),
    inference(res,[status(thm),theory(equality)],[35,72]),
    [iquote('0:Res:35.1,72.0')] ).

cnf(560,plain,
    ( ~ occurrence_of(u,tptp0)
    | next_subocc(skf32(u),skf33(skf32(u)),tptp0) ),
    inference(obv,[status(thm),theory(equality)],[558]),
    [iquote('0:Obv:558.0')] ).

cnf(782,plain,
    ( ~ occurrence_of(u,tptp0)
    | ~ min_precedes(v,skf31(u),tptp0)
    | ~ min_precedes(skf32(u),v,tptp0) ),
    inference(res,[status(thm),theory(equality)],[56,77]),
    [iquote('0:Res:56.1,77.0')] ).

cnf(889,plain,
    ( ~ arboreal(u)
    | ~ arboreal(v)
    | ~ root_occ(u,w)
    | ~ occurrence_of(w,x)
    | ~ subactivity_occurrence(v,w)
    | equal(v,u)
    | min_precedes(u,v,x)
    | min_precedes(v,u,x) ),
    inference(res,[status(thm),theory(equality)],[30,83]),
    [iquote('0:Res:30.1,83.2')] ).

cnf(890,plain,
    ( ~ arboreal(u)
    | ~ arboreal(v)
    | ~ leaf_occ(u,w)
    | ~ occurrence_of(w,x)
    | ~ subactivity_occurrence(v,w)
    | equal(v,u)
    | min_precedes(u,v,x)
    | min_precedes(v,u,x) ),
    inference(res,[status(thm),theory(equality)],[31,83]),
    [iquote('0:Res:31.1,83.2')] ).

cnf(895,plain,
    ( ~ arboreal(u)
    | ~ arboreal(v)
    | ~ leaf_occ(u,w)
    | ~ occurrence_of(w,x)
    | ~ subactivity_occurrence(v,w)
    | equal(v,u)
    | min_precedes(v,u,x) ),
    inference(mrr,[status(thm)],[890,71]),
    [iquote('0:MRR:890.6,71.2')] ).

cnf(896,plain,
    ( ~ arboreal(u)
    | ~ arboreal(v)
    | ~ root_occ(u,w)
    | ~ occurrence_of(w,x)
    | ~ subactivity_occurrence(v,w)
    | equal(v,u)
    | min_precedes(u,v,x) ),
    inference(mrr,[status(thm)],[889,70]),
    [iquote('0:MRR:889.7,70.2')] ).

cnf(902,plain,
    ( ~ occurrence_of(u,tptp0)
    | min_precedes(skf32(u),skf33(skf32(u)),tptp0) ),
    inference(res,[status(thm),theory(equality)],[560,37]),
    [iquote('0:Res:560.1,37.0')] ).

cnf(2482,plain,
    ( ~ arboreal(skf31(u))
    | ~ arboreal(v)
    | ~ occurrence_of(u,tptp0)
    | ~ occurrence_of(u,w)
    | ~ subactivity_occurrence(v,u)
    | equal(v,skf31(u))
    | min_precedes(v,skf31(u),w) ),
    inference(res,[status(thm),theory(equality)],[36,895]),
    [iquote('0:Res:36.1,895.2')] ).

cnf(2486,plain,
    ( ~ arboreal(u)
    | ~ occurrence_of(v,tptp0)
    | ~ occurrence_of(v,w)
    | ~ subactivity_occurrence(u,v)
    | equal(u,skf31(v))
    | min_precedes(u,skf31(v),w) ),
    inference(ssi,[status(thm)],[2482,120,150]),
    [iquote('0:SSi:2482.0,120.0,150.0')] ).

cnf(2510,plain,
    ( ~ arboreal(skf32(u))
    | ~ arboreal(v)
    | ~ occurrence_of(u,tptp0)
    | ~ occurrence_of(u,w)
    | ~ subactivity_occurrence(v,u)
    | equal(v,skf32(u))
    | min_precedes(skf32(u),v,w) ),
    inference(res,[status(thm),theory(equality)],[35,896]),
    [iquote('0:Res:35.1,896.2')] ).

cnf(2512,plain,
    ( ~ arboreal(u)
    | ~ occurrence_of(v,tptp0)
    | ~ occurrence_of(v,w)
    | ~ subactivity_occurrence(u,v)
    | equal(u,skf32(v))
    | min_precedes(skf32(v),u,w) ),
    inference(ssi,[status(thm)],[2510,121,151]),
    [iquote('0:SSi:2510.0,121.0,151.0')] ).

cnf(5185,plain,
    ( ~ arboreal(u)
    | ~ occurrence_of(v,tptp0)
    | ~ occurrence_of(v,tptp0)
    | ~ subactivity_occurrence(u,v)
    | ~ occurrence_of(v,tptp0)
    | ~ min_precedes(skf32(v),u,tptp0)
    | equal(u,skf31(v)) ),
    inference(res,[status(thm),theory(equality)],[2486,782]),
    [iquote('0:Res:2486.5,782.1')] ).

cnf(5199,plain,
    ( ~ arboreal(u)
    | ~ subactivity_occurrence(u,v)
    | ~ occurrence_of(v,tptp0)
    | ~ min_precedes(skf32(v),u,tptp0)
    | equal(u,skf31(v)) ),
    inference(obv,[status(thm),theory(equality)],[5185]),
    [iquote('0:Obv:5185.2')] ).

cnf(5289,plain,
    ( ~ arboreal(u)
    | ~ occurrence_of(v,tptp0)
    | ~ occurrence_of(v,tptp0)
    | ~ subactivity_occurrence(u,v)
    | ~ root_occ(u,skc1)
    | equal(u,skf32(v)) ),
    inference(res,[status(thm),theory(equality)],[2512,87]),
    [iquote('0:Res:2512.5,87.1')] ).

cnf(5319,plain,
    ( ~ arboreal(u)
    | ~ occurrence_of(v,tptp0)
    | ~ subactivity_occurrence(u,v)
    | ~ root_occ(u,skc1)
    | equal(u,skf32(v)) ),
    inference(obv,[status(thm),theory(equality)],[5289]),
    [iquote('0:Obv:5289.1')] ).

cnf(5320,plain,
    ( ~ occurrence_of(u,tptp0)
    | ~ subactivity_occurrence(v,u)
    | ~ root_occ(v,skc1)
    | equal(v,skf32(u)) ),
    inference(mrr,[status(thm)],[5319,152]),
    [iquote('0:MRR:5319.0,152.1')] ).

cnf(5459,plain,
    ( ~ root_occ(u,skc1)
    | ~ occurrence_of(skf25(skf33(u),u,v),tptp0)
    | ~ root_occ(u,skc1)
    | equal(skf32(skf25(skf33(u),u,v)),u) ),
    inference(res,[status(thm),theory(equality)],[514,5320]),
    [iquote('0:Res:514.1,5320.1')] ).

cnf(5470,plain,
    ( ~ occurrence_of(skf25(skf33(u),u,v),tptp0)
    | ~ root_occ(u,skc1)
    | equal(skf32(skf25(skf33(u),u,v)),u) ),
    inference(obv,[status(thm),theory(equality)],[5459]),
    [iquote('0:Obv:5459.0')] ).

cnf(16001,plain,
    ( ~ arboreal(skf33(skf32(u)))
    | ~ occurrence_of(u,tptp0)
    | ~ subactivity_occurrence(skf33(skf32(u)),u)
    | ~ occurrence_of(u,tptp0)
    | equal(skf33(skf32(u)),skf31(u)) ),
    inference(res,[status(thm),theory(equality)],[902,5199]),
    [iquote('0:Res:902.1,5199.3')] ).

cnf(16018,plain,
    ( ~ arboreal(skf33(skf32(u)))
    | ~ subactivity_occurrence(skf33(skf32(u)),u)
    | ~ occurrence_of(u,tptp0)
    | equal(skf33(skf32(u)),skf31(u)) ),
    inference(obv,[status(thm),theory(equality)],[16001]),
    [iquote('0:Obv:16001.1')] ).

cnf(16019,plain,
    ( ~ subactivity_occurrence(skf33(skf32(u)),u)
    | ~ occurrence_of(u,tptp0)
    | equal(skf33(skf32(u)),skf31(u)) ),
    inference(ssi,[status(thm)],[16018,119,121,151,149]),
    [iquote('0:SSi:16018.0,119.0,121.0,151.0,149.0,121.0,151.0')] ).

cnf(35228,plain,
    ( ~ min_precedes(u,skf33(u),tptp0)
    | ~ root_occ(u,skc1)
    | equal(skf32(skf25(skf33(u),u,tptp0)),u) ),
    inference(res,[status(thm),theory(equality)],[61,5470]),
    [iquote('0:Res:61.1,5470.0')] ).

cnf(35229,plain,
    ( ~ root_occ(u,skc1)
    | equal(skf32(skf25(skf33(u),u,tptp0)),u) ),
    inference(mrr,[status(thm)],[35228,216]),
    [iquote('0:MRR:35228.0,216.1')] ).

cnf(35349,plain,
    ( ~ root_occ(u,skc1)
    | ~ subactivity_occurrence(skf33(u),skf25(skf33(u),u,tptp0))
    | ~ occurrence_of(skf25(skf33(u),u,tptp0),tptp0)
    | equal(skf33(skf32(skf25(skf33(u),u,tptp0))),skf31(skf25(skf33(u),u,tptp0))) ),
    inference(spl,[status(thm),theory(equality)],[35229,16019]),
    [iquote('0:SpL:35229.1,16019.0')] ).

cnf(35558,plain,
    ( ~ root_occ(u,skc1)
    | ~ subactivity_occurrence(skf33(u),skf25(skf33(u),u,tptp0))
    | ~ occurrence_of(skf25(skf33(u),u,tptp0),tptp0)
    | equal(skf31(skf25(skf33(u),u,tptp0)),skf33(u)) ),
    inference(rew,[status(thm),theory(equality)],[35229,35349]),
    [iquote('0:Rew:35229.1,35349.3')] ).

cnf(35559,plain,
    ( ~ root_occ(u,skc1)
    | ~ occurrence_of(skf25(skf33(u),u,tptp0),tptp0)
    | equal(skf31(skf25(skf33(u),u,tptp0)),skf33(u)) ),
    inference(mrr,[status(thm)],[35558,527]),
    [iquote('0:MRR:35558.1,527.1')] ).

cnf(41446,plain,
    ( ~ min_precedes(u,skf33(u),tptp0)
    | ~ root_occ(u,skc1)
    | equal(skf31(skf25(skf33(u),u,tptp0)),skf33(u)) ),
    inference(res,[status(thm),theory(equality)],[61,35559]),
    [iquote('0:Res:61.1,35559.1')] ).

cnf(41447,plain,
    ( ~ root_occ(u,skc1)
    | equal(skf31(skf25(skf33(u),u,tptp0)),skf33(u)) ),
    inference(mrr,[status(thm)],[41446,216]),
    [iquote('0:MRR:41446.0,216.1')] ).

cnf(41484,plain,
    ( ~ root_occ(u,skc1)
    | equal(skf23(skf33(u)),tptp3) ),
    inference(spr,[status(thm),theory(equality)],[41447,357]),
    [iquote('0:SpR:41447.1,357.0')] ).

cnf(41606,plain,
    ( ~ root_occ(u,skc1)
    | equal(tptp1,tptp3) ),
    inference(rew,[status(thm),theory(equality)],[347,41484]),
    [iquote('0:Rew:347.0,41484.1')] ).

cnf(41607,plain,
    ~ root_occ(u,skc1),
    inference(mrr,[status(thm)],[41606,15]),
    [iquote('0:MRR:41606.1,15.0')] ).

cnf(41608,plain,
    $false,
    inference(unc,[status(thm)],[41607,96]),
    [iquote('0:UnC:41607.0,96.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : PRO003+2 : TPTP v8.1.0. Released v4.0.0.
% 0.11/0.12  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n027.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jun 13 03:36:31 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 32.05/32.28  
% 32.05/32.28  SPASS V 3.9 
% 32.05/32.28  SPASS beiseite: Proof found.
% 32.05/32.28  % SZS status Theorem
% 32.05/32.28  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 32.05/32.28  SPASS derived 33283 clauses, backtracked 3342 clauses, performed 48 splits and kept 14192 clauses.
% 32.05/32.28  SPASS allocated 138742 KBytes.
% 32.05/32.28  SPASS spent	0:0:31.89 on the problem.
% 32.05/32.28  		0:00:00.03 for the input.
% 32.05/32.28  		0:00:00.08 for the FLOTTER CNF translation.
% 32.05/32.28  		0:00:00.76 for inferences.
% 32.05/32.28  		0:00:01.11 for the backtracking.
% 32.05/32.28  		0:0:29.46 for the reduction.
% 32.05/32.28  
% 32.05/32.28  
% 32.05/32.28  Here is a proof with depth 8, length 86 :
% 32.05/32.28  % SZS output start Refutation
% See solution above
% 33.11/33.33  Formulae used in the proof : sos_35 sos_36 sos_38 goals sos_32 sos_42 sos_45 sos_29 sos_05 sos_10 sos_11 sos_18 sos_04 sos_13 sos_22 sos_24 sos_20 sos_21 sos_28
% 33.11/33.33  
%------------------------------------------------------------------------------