TSTP Solution File: PLA031-1.001 by Metis---2.4
View Problem
- Process Solution
%------------------------------------------------------------------------------
% File : Metis---2.4
% Problem : PLA031-1.001 : TPTP v8.1.0. Released v3.5.0.
% Transfm : none
% Format : tptp:raw
% Command : metis --show proof --show saturation %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 17:26:21 EDT 2022
% Result : Unsatisfiable 4.13s 4.32s
% Output : CNFRefutation 4.13s
% Verified :
% SZS Type : Refutation
% Derivation depth : 52
% Number of leaves : 29
% Syntax : Number of clauses : 106 ( 40 unt; 0 nHn; 106 RR)
% Number of literals : 193 ( 0 equ; 88 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 5 ( 4 usr; 1 prp; 0-6 aty)
% Number of functors : 7 ( 7 usr; 7 con; 0-0 aty)
% Number of variables : 105 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(load3,axiom,
( ~ s(L,O2,D1,D2,T1,L)
| s(truck2,O2,D1,D2,T1,L) ) ).
cnf(load4,axiom,
( s(L,O2,D1,D2,T1,L)
| ~ s(truck2,O2,D1,D2,T1,L) ) ).
cnf(load5,axiom,
( ~ s(O1,L,D1,D2,L,T2)
| s(O1,truck1,D1,D2,L,T2) ) ).
cnf(load6,axiom,
( s(O1,L,D1,D2,L,T2)
| ~ s(O1,truck1,D1,D2,L,T2) ) ).
cnf(load7,axiom,
( ~ s(O1,L,D1,D2,T1,L)
| s(O1,truck2,D1,D2,T1,L) ) ).
cnf(load8,axiom,
( s(O1,L,D1,D2,T1,L)
| ~ s(O1,truck2,D1,D2,T1,L) ) ).
cnf(board1,axiom,
( ~ s(O1,O2,L,D2,L,T2)
| ~ neq(D2,truck1)
| s(O1,O2,truck1,D2,L,T2) ) ).
cnf(board2,axiom,
( s(O1,O2,L,D2,L,T2)
| ~ s(O1,O2,truck1,D2,L,T2) ) ).
cnf(board3,axiom,
( ~ s(O1,O2,L,D2,T1,L)
| ~ neq(D2,truck2)
| s(O1,O2,truck2,D2,T1,L) ) ).
cnf(board4,axiom,
( s(O1,O2,L,D2,T1,L)
| ~ s(O1,O2,truck2,D2,T1,L) ) ).
cnf(board5,axiom,
( ~ s(O1,O2,D1,L,L,T2)
| ~ neq(D1,truck1)
| s(O1,O2,D1,truck1,L,T2) ) ).
cnf(board6,axiom,
( s(O1,O2,D1,L,L,T2)
| ~ s(O1,O2,D1,truck1,L,T2) ) ).
cnf(drive1,axiom,
( ~ s(O1,O2,truck1,D2,S,T2)
| ~ link(S,D)
| s(O1,O2,truck1,D2,D,T2) ) ).
cnf(drive2,axiom,
( ~ s(O1,O2,truck2,D2,T1,S)
| ~ link(S,D)
| s(O1,O2,truck2,D2,T1,D) ) ).
cnf(drive3,axiom,
( ~ s(O1,O2,D1,truck1,S,T2)
| ~ link(S,D)
| s(O1,O2,D1,truck1,D,T2) ) ).
cnf(walk1,axiom,
( ~ s(O1,O2,S,D2,T1,T2)
| ~ path(S,D)
| s(O1,O2,D,D2,T1,T2) ) ).
cnf(neq25,axiom,
neq(s1,truck1) ).
cnf(neq26,axiom,
neq(s1,truck2) ).
cnf(neq33,axiom,
neq(s2,truck1) ).
cnf(map6,axiom,
path(p2_0,s2) ).
cnf(map7,axiom,
path(s0,p2_0) ).
cnf(map10,axiom,
path(p2_1,s2) ).
cnf(map11,axiom,
path(s1,p2_1) ).
cnf(map15,axiom,
link(s0,s2) ).
cnf(map16,axiom,
link(s2,s0) ).
cnf(map17,axiom,
link(s1,s2) ).
cnf(map18,axiom,
link(s2,s1) ).
cnf(init,axiom,
s(s2,s2,s0,s1,s0,s2) ).
cnf(goal,negated_conjecture,
~ s(s2,s1,s2,s2,s2,s0) ).
cnf(refute_0_0,plain,
( ~ s(s2,s1,s2,truck1,s2,s0)
| s(s2,s1,s2,s2,s2,s0) ),
inference(subst,[],[board6:[bind(D1,$fot(s2)),bind(L,$fot(s2)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_1,plain,
( ~ link(s1,D)
| ~ s(s2,s1,s2,truck1,s1,s0)
| s(s2,s1,s2,truck1,D,s0) ),
inference(subst,[],[drive3:[bind(D1,$fot(s2)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_2,plain,
( ~ neq(s2,truck1)
| ~ s(s2,s1,s2,s1,s1,s0)
| s(s2,s1,s2,truck1,s1,s0) ),
inference(subst,[],[board5:[bind(D1,$fot(s2)),bind(L,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_3,plain,
( ~ path(p2_1,D)
| ~ s(s2,s1,p2_1,s1,s1,s0)
| s(s2,s1,D,s1,s1,s0) ),
inference(subst,[],[walk1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(p2_1)),bind(T1,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_4,plain,
( ~ path(s1,D)
| ~ s(s2,s1,s1,s1,s1,s0)
| s(s2,s1,D,s1,s1,s0) ),
inference(subst,[],[walk1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s1)),bind(T1,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_5,plain,
( ~ s(s2,s1,truck1,s1,s1,s0)
| s(s2,s1,s1,s1,s1,s0) ),
inference(subst,[],[board2:[bind(D2,$fot(s1)),bind(L,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_6,plain,
( ~ link(s2,D)
| ~ s(s2,s1,truck1,s1,s2,s0)
| s(s2,s1,truck1,s1,D,s0) ),
inference(subst,[],[drive1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s2)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_7,plain,
( ~ neq(s1,truck1)
| ~ s(s2,s1,s2,s1,s2,s0)
| s(s2,s1,truck1,s1,s2,s0) ),
inference(subst,[],[board1:[bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_8,plain,
( ~ path(p2_0,D)
| ~ s(s2,s1,p2_0,s1,s2,s0)
| s(s2,s1,D,s1,s2,s0) ),
inference(subst,[],[walk1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(p2_0)),bind(T1,$fot(s2)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_9,plain,
( ~ s(s2,s1,truck2,s1,s2,s0)
| s(s2,s1,s0,s1,s2,s0) ),
inference(subst,[],[board4:[bind(D2,$fot(s1)),bind(L,$fot(s0)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(T1,$fot(s2))]]) ).
cnf(refute_0_10,plain,
( ~ s(truck2,s1,truck2,s1,s2,s2)
| s(s2,s1,truck2,s1,s2,s2) ),
inference(subst,[],[load4:[bind(D1,$fot(truck2)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O2,$fot(s1)),bind(T1,$fot(s2))]]) ).
cnf(refute_0_11,plain,
( ~ neq(s1,truck2)
| ~ s(truck2,s1,s2,s1,s2,s2)
| s(truck2,s1,truck2,s1,s2,s2) ),
inference(subst,[],[board3:[bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(truck2)),bind(O2,$fot(s1)),bind(T1,$fot(s2))]]) ).
cnf(refute_0_12,plain,
( ~ s(truck2,s1,truck1,s1,s2,s2)
| s(truck2,s1,s2,s1,s2,s2) ),
inference(subst,[],[board2:[bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(truck2)),bind(O2,$fot(s1)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_13,plain,
( ~ s(s2,s1,truck1,s1,s2,s2)
| s(truck2,s1,truck1,s1,s2,s2) ),
inference(subst,[],[load3:[bind(D1,$fot(truck1)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O2,$fot(s1)),bind(T1,$fot(s2))]]) ).
cnf(refute_0_14,plain,
( ~ link(s1,D)
| ~ s(s2,s1,truck1,s1,s1,s2)
| s(s2,s1,truck1,s1,D,s2) ),
inference(subst,[],[drive1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s1)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_15,plain,
( ~ s(s2,truck1,truck1,s1,s1,s2)
| s(s2,s1,truck1,s1,s1,s2) ),
inference(subst,[],[load6:[bind(D1,$fot(truck1)),bind(D2,$fot(s1)),bind(L,$fot(s1)),bind(O1,$fot(s2)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_16,plain,
( ~ link(s2,D)
| ~ s(s2,truck1,truck1,s1,s2,s2)
| s(s2,truck1,truck1,s1,D,s2) ),
inference(subst,[],[drive1:[bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(truck1)),bind(S,$fot(s2)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_17,plain,
( ~ s(s2,s2,truck1,s1,s2,s2)
| s(s2,truck1,truck1,s1,s2,s2) ),
inference(subst,[],[load5:[bind(D1,$fot(truck1)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(s2)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_18,plain,
( ~ s(s2,truck2,truck1,s1,s0,s2)
| s(s2,s2,truck1,s1,s0,s2) ),
inference(subst,[],[load8:[bind(D1,$fot(truck1)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(s2)),bind(T1,$fot(s0))]]) ).
cnf(refute_0_19,plain,
( ~ s(truck2,truck2,s0,s1,s0,s2)
| s(s2,truck2,s0,s1,s0,s2) ),
inference(subst,[],[load4:[bind(D1,$fot(s0)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O2,$fot(truck2)),bind(T1,$fot(s0))]]) ).
cnf(refute_0_20,plain,
( ~ s(s2,s2,s0,s1,s0,s2)
| s(truck2,s2,s0,s1,s0,s2) ),
inference(subst,[],[load3:[bind(D1,$fot(s0)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O2,$fot(s2)),bind(T1,$fot(s0))]]) ).
cnf(refute_0_21,plain,
s(truck2,s2,s0,s1,s0,s2),
inference(resolve,[$cnf( s(s2,s2,s0,s1,s0,s2) )],[init,refute_0_20]) ).
cnf(refute_0_22,plain,
( ~ s(truck2,s2,s0,s1,s0,s2)
| s(truck2,truck2,s0,s1,s0,s2) ),
inference(subst,[],[load7:[bind(D1,$fot(s0)),bind(D2,$fot(s1)),bind(L,$fot(s2)),bind(O1,$fot(truck2)),bind(T1,$fot(s0))]]) ).
cnf(refute_0_23,plain,
s(truck2,truck2,s0,s1,s0,s2),
inference(resolve,[$cnf( s(truck2,s2,s0,s1,s0,s2) )],[refute_0_21,refute_0_22]) ).
cnf(refute_0_24,plain,
s(s2,truck2,s0,s1,s0,s2),
inference(resolve,[$cnf( s(truck2,truck2,s0,s1,s0,s2) )],[refute_0_23,refute_0_19]) ).
cnf(refute_0_25,plain,
( ~ neq(s1,truck1)
| ~ s(s2,truck2,s0,s1,s0,s2)
| s(s2,truck2,truck1,s1,s0,s2) ),
inference(subst,[],[board1:[bind(D2,$fot(s1)),bind(L,$fot(s0)),bind(O1,$fot(s2)),bind(O2,$fot(truck2)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_26,plain,
( ~ neq(s1,truck1)
| s(s2,truck2,truck1,s1,s0,s2) ),
inference(resolve,[$cnf( s(s2,truck2,s0,s1,s0,s2) )],[refute_0_24,refute_0_25]) ).
cnf(refute_0_27,plain,
s(s2,truck2,truck1,s1,s0,s2),
inference(resolve,[$cnf( neq(s1,truck1) )],[neq25,refute_0_26]) ).
cnf(refute_0_28,plain,
s(s2,s2,truck1,s1,s0,s2),
inference(resolve,[$cnf( s(s2,truck2,truck1,s1,s0,s2) )],[refute_0_27,refute_0_18]) ).
cnf(refute_0_29,plain,
( ~ link(s0,X_80)
| ~ s(s2,s2,truck1,s1,s0,s2)
| s(s2,s2,truck1,s1,X_80,s2) ),
inference(subst,[],[drive1:[bind(D,$fot(X_80)),bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s2)),bind(S,$fot(s0)),bind(T2,$fot(s2))]]) ).
cnf(refute_0_30,plain,
( ~ link(s0,X_80)
| s(s2,s2,truck1,s1,X_80,s2) ),
inference(resolve,[$cnf( s(s2,s2,truck1,s1,s0,s2) )],[refute_0_28,refute_0_29]) ).
cnf(refute_0_31,plain,
( ~ link(s0,s2)
| s(s2,s2,truck1,s1,s2,s2) ),
inference(subst,[],[refute_0_30:[bind(X_80,$fot(s2))]]) ).
cnf(refute_0_32,plain,
s(s2,s2,truck1,s1,s2,s2),
inference(resolve,[$cnf( link(s0,s2) )],[map15,refute_0_31]) ).
cnf(refute_0_33,plain,
s(s2,truck1,truck1,s1,s2,s2),
inference(resolve,[$cnf( s(s2,s2,truck1,s1,s2,s2) )],[refute_0_32,refute_0_17]) ).
cnf(refute_0_34,plain,
( ~ link(s2,D)
| s(s2,truck1,truck1,s1,D,s2) ),
inference(resolve,[$cnf( s(s2,truck1,truck1,s1,s2,s2) )],[refute_0_33,refute_0_16]) ).
cnf(refute_0_35,plain,
( ~ link(s2,s1)
| s(s2,truck1,truck1,s1,s1,s2) ),
inference(subst,[],[refute_0_34:[bind(D,$fot(s1))]]) ).
cnf(refute_0_36,plain,
s(s2,truck1,truck1,s1,s1,s2),
inference(resolve,[$cnf( link(s2,s1) )],[map18,refute_0_35]) ).
cnf(refute_0_37,plain,
s(s2,s1,truck1,s1,s1,s2),
inference(resolve,[$cnf( s(s2,truck1,truck1,s1,s1,s2) )],[refute_0_36,refute_0_15]) ).
cnf(refute_0_38,plain,
( ~ link(s1,D)
| s(s2,s1,truck1,s1,D,s2) ),
inference(resolve,[$cnf( s(s2,s1,truck1,s1,s1,s2) )],[refute_0_37,refute_0_14]) ).
cnf(refute_0_39,plain,
( ~ link(s1,s2)
| s(s2,s1,truck1,s1,s2,s2) ),
inference(subst,[],[refute_0_38:[bind(D,$fot(s2))]]) ).
cnf(refute_0_40,plain,
s(s2,s1,truck1,s1,s2,s2),
inference(resolve,[$cnf( link(s1,s2) )],[map17,refute_0_39]) ).
cnf(refute_0_41,plain,
s(truck2,s1,truck1,s1,s2,s2),
inference(resolve,[$cnf( s(s2,s1,truck1,s1,s2,s2) )],[refute_0_40,refute_0_13]) ).
cnf(refute_0_42,plain,
s(truck2,s1,s2,s1,s2,s2),
inference(resolve,[$cnf( s(truck2,s1,truck1,s1,s2,s2) )],[refute_0_41,refute_0_12]) ).
cnf(refute_0_43,plain,
( ~ neq(s1,truck2)
| s(truck2,s1,truck2,s1,s2,s2) ),
inference(resolve,[$cnf( s(truck2,s1,s2,s1,s2,s2) )],[refute_0_42,refute_0_11]) ).
cnf(refute_0_44,plain,
s(truck2,s1,truck2,s1,s2,s2),
inference(resolve,[$cnf( neq(s1,truck2) )],[neq26,refute_0_43]) ).
cnf(refute_0_45,plain,
s(s2,s1,truck2,s1,s2,s2),
inference(resolve,[$cnf( s(truck2,s1,truck2,s1,s2,s2) )],[refute_0_44,refute_0_10]) ).
cnf(refute_0_46,plain,
( ~ link(s2,X_161)
| ~ s(s2,s1,truck2,s1,s2,s2)
| s(s2,s1,truck2,s1,s2,X_161) ),
inference(subst,[],[drive2:[bind(D,$fot(X_161)),bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s2)),bind(T1,$fot(s2))]]) ).
cnf(refute_0_47,plain,
( ~ link(s2,X_161)
| s(s2,s1,truck2,s1,s2,X_161) ),
inference(resolve,[$cnf( s(s2,s1,truck2,s1,s2,s2) )],[refute_0_45,refute_0_46]) ).
cnf(refute_0_48,plain,
( ~ link(s2,s0)
| s(s2,s1,truck2,s1,s2,s0) ),
inference(subst,[],[refute_0_47:[bind(X_161,$fot(s0))]]) ).
cnf(refute_0_49,plain,
s(s2,s1,truck2,s1,s2,s0),
inference(resolve,[$cnf( link(s2,s0) )],[map16,refute_0_48]) ).
cnf(refute_0_50,plain,
s(s2,s1,s0,s1,s2,s0),
inference(resolve,[$cnf( s(s2,s1,truck2,s1,s2,s0) )],[refute_0_49,refute_0_9]) ).
cnf(refute_0_51,plain,
( ~ path(s0,X_404)
| ~ s(s2,s1,s0,s1,s2,s0)
| s(s2,s1,X_404,s1,s2,s0) ),
inference(subst,[],[walk1:[bind(D,$fot(X_404)),bind(D2,$fot(s1)),bind(O1,$fot(s2)),bind(O2,$fot(s1)),bind(S,$fot(s0)),bind(T1,$fot(s2)),bind(T2,$fot(s0))]]) ).
cnf(refute_0_52,plain,
( ~ path(s0,X_404)
| s(s2,s1,X_404,s1,s2,s0) ),
inference(resolve,[$cnf( s(s2,s1,s0,s1,s2,s0) )],[refute_0_50,refute_0_51]) ).
cnf(refute_0_53,plain,
( ~ path(s0,p2_0)
| s(s2,s1,p2_0,s1,s2,s0) ),
inference(subst,[],[refute_0_52:[bind(X_404,$fot(p2_0))]]) ).
cnf(refute_0_54,plain,
s(s2,s1,p2_0,s1,s2,s0),
inference(resolve,[$cnf( path(s0,p2_0) )],[map7,refute_0_53]) ).
cnf(refute_0_55,plain,
( ~ path(p2_0,D)
| s(s2,s1,D,s1,s2,s0) ),
inference(resolve,[$cnf( s(s2,s1,p2_0,s1,s2,s0) )],[refute_0_54,refute_0_8]) ).
cnf(refute_0_56,plain,
( ~ path(p2_0,s2)
| s(s2,s1,s2,s1,s2,s0) ),
inference(subst,[],[refute_0_55:[bind(D,$fot(s2))]]) ).
cnf(refute_0_57,plain,
s(s2,s1,s2,s1,s2,s0),
inference(resolve,[$cnf( path(p2_0,s2) )],[map6,refute_0_56]) ).
cnf(refute_0_58,plain,
( ~ neq(s1,truck1)
| s(s2,s1,truck1,s1,s2,s0) ),
inference(resolve,[$cnf( s(s2,s1,s2,s1,s2,s0) )],[refute_0_57,refute_0_7]) ).
cnf(refute_0_59,plain,
s(s2,s1,truck1,s1,s2,s0),
inference(resolve,[$cnf( neq(s1,truck1) )],[neq25,refute_0_58]) ).
cnf(refute_0_60,plain,
( ~ link(s2,D)
| s(s2,s1,truck1,s1,D,s0) ),
inference(resolve,[$cnf( s(s2,s1,truck1,s1,s2,s0) )],[refute_0_59,refute_0_6]) ).
cnf(refute_0_61,plain,
( ~ link(s2,s1)
| s(s2,s1,truck1,s1,s1,s0) ),
inference(subst,[],[refute_0_60:[bind(D,$fot(s1))]]) ).
cnf(refute_0_62,plain,
s(s2,s1,truck1,s1,s1,s0),
inference(resolve,[$cnf( link(s2,s1) )],[map18,refute_0_61]) ).
cnf(refute_0_63,plain,
s(s2,s1,s1,s1,s1,s0),
inference(resolve,[$cnf( s(s2,s1,truck1,s1,s1,s0) )],[refute_0_62,refute_0_5]) ).
cnf(refute_0_64,plain,
( ~ path(s1,D)
| s(s2,s1,D,s1,s1,s0) ),
inference(resolve,[$cnf( s(s2,s1,s1,s1,s1,s0) )],[refute_0_63,refute_0_4]) ).
cnf(refute_0_65,plain,
( ~ path(s1,p2_1)
| s(s2,s1,p2_1,s1,s1,s0) ),
inference(subst,[],[refute_0_64:[bind(D,$fot(p2_1))]]) ).
cnf(refute_0_66,plain,
s(s2,s1,p2_1,s1,s1,s0),
inference(resolve,[$cnf( path(s1,p2_1) )],[map11,refute_0_65]) ).
cnf(refute_0_67,plain,
( ~ path(p2_1,D)
| s(s2,s1,D,s1,s1,s0) ),
inference(resolve,[$cnf( s(s2,s1,p2_1,s1,s1,s0) )],[refute_0_66,refute_0_3]) ).
cnf(refute_0_68,plain,
( ~ path(p2_1,s2)
| s(s2,s1,s2,s1,s1,s0) ),
inference(subst,[],[refute_0_67:[bind(D,$fot(s2))]]) ).
cnf(refute_0_69,plain,
s(s2,s1,s2,s1,s1,s0),
inference(resolve,[$cnf( path(p2_1,s2) )],[map10,refute_0_68]) ).
cnf(refute_0_70,plain,
( ~ neq(s2,truck1)
| s(s2,s1,s2,truck1,s1,s0) ),
inference(resolve,[$cnf( s(s2,s1,s2,s1,s1,s0) )],[refute_0_69,refute_0_2]) ).
cnf(refute_0_71,plain,
s(s2,s1,s2,truck1,s1,s0),
inference(resolve,[$cnf( neq(s2,truck1) )],[neq33,refute_0_70]) ).
cnf(refute_0_72,plain,
( ~ link(s1,D)
| s(s2,s1,s2,truck1,D,s0) ),
inference(resolve,[$cnf( s(s2,s1,s2,truck1,s1,s0) )],[refute_0_71,refute_0_1]) ).
cnf(refute_0_73,plain,
( ~ link(s1,s2)
| s(s2,s1,s2,truck1,s2,s0) ),
inference(subst,[],[refute_0_72:[bind(D,$fot(s2))]]) ).
cnf(refute_0_74,plain,
s(s2,s1,s2,truck1,s2,s0),
inference(resolve,[$cnf( link(s1,s2) )],[map17,refute_0_73]) ).
cnf(refute_0_75,plain,
s(s2,s1,s2,s2,s2,s0),
inference(resolve,[$cnf( s(s2,s1,s2,truck1,s2,s0) )],[refute_0_74,refute_0_0]) ).
cnf(refute_0_76,plain,
$false,
inference(resolve,[$cnf( s(s2,s1,s2,s2,s2,s0) )],[refute_0_75,goal]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12 % Problem : PLA031-1.001 : TPTP v8.1.0. Released v3.5.0.
% 0.12/0.13 % Command : metis --show proof --show saturation %s
% 0.13/0.34 % Computer : n027.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 : 600
% 0.13/0.34 % DateTime : Tue May 31 23:30:33 EDT 2022
% 0.13/0.34 % CPUTime :
% 0.13/0.35 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 4.13/4.32 % SZS status Unsatisfiable for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 4.13/4.32
% 4.13/4.32 % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 4.13/4.32
%------------------------------------------------------------------------------