On improving efficiency of model checking through systematically ...

else if wl11 and c1 then 1
else if wl11 and c2 then 2
else if wl11 and c3 then 3
else widx;
Precon’ = if true then 1
else if wl8 and wl810 then w2
else Precon;
w1’= if true then 1
else if wl3 and wl34 then Latest
else w1;
w2’= if true then 1
else if wl7 and wl78 then Prefer2
else if wl6 and wl68 then Prefer1
else if wl9 and wl910 then Precon
else w2;
j’= if true then 1
else if wl10 and wl1011 then Latest
else j;
initial
(s and not l2 and not l3 and not l4 and
not l5 and not l6 and not l7 and not lr) and
(ws and not wl2 and not wl3 and not wl4 and not wl5
and not wl6 and not wl7 and not wl8 and not wl9
and not wl10 and not wl11 and not wl12) ;
final
(lr and wl12) and ((l7 or l6)and wl11) ;
A.3 Fischer’s protocol
state
input
l10,l11,l12,l13,l20,l21,l22,l23,lock1,lock2:bool;
c1,c2:int;
p1,p2,tick:bool;
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