You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
992 B
42 lines
992 B
// Israeli-Jalfon algorithm
|
|
// dxp/gxn 10/06/02
|
|
// token of size 6
|
|
|
|
nondeterministic
|
|
|
|
// variables to represent whether a process has a token or not
|
|
// note they are global because they can be updated by other processes
|
|
global q1 : [0..1];
|
|
global q2 : [0..1];
|
|
global q3 : [0..1];
|
|
global q4 : [0..1];
|
|
global q5 : [0..1];
|
|
global q6 : [0..1];
|
|
|
|
// module of process 1
|
|
module process1
|
|
|
|
[] (q1=1) -> 0.5 : (q1'=0) & (q6'=1) + 0.5 : (q1'=0) & (q2'=1);
|
|
|
|
endmodule
|
|
|
|
// add further processes through renaming
|
|
module process2 =process1[q1=q2 ,q2=q3, q6=q1] endmodule
|
|
module process3 =process1[q1=q3 ,q2=q4, q6=q2] endmodule
|
|
module process4 =process1[q1=q4 ,q2=q5, q6=q3] endmodule
|
|
module process5 =process1[q1=q5 ,q2=q6, q6=q4] endmodule
|
|
module process6 =process1[q1=q6 ,q2=q1, q6=q5] endmodule
|
|
|
|
// cost - 1 in each state (expected steps)
|
|
rewards
|
|
|
|
true : 1;
|
|
|
|
endrewards
|
|
|
|
// initial states (at least one token)
|
|
init
|
|
|
|
q1+q2+q3+q4+q5+q6>=1
|
|
|
|
endinit
|