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deadlock.dot
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digraph g {
1 [shape=box,label="M: \nP: 0=entry:1[1],1=ta:0[]"]
2 [shape=box,label="M: \nP: 0=entry:1[1],1=ta:1[]"]
3 [shape=box,label="M: \nP: 1=ta:0[],2=tb:0[]"]
4 [shape=box,label="M: \nP: 1=ta:0[],2=tb:1[]"]
5 [shape=box,label="M: \nP: 1=ta:1[],2=tb:0[]"]
6 [shape=box,label="M: a:1/1\nP: 0=entry:1[1],1=ta:2[]"]
7 [shape=box,label="M: \nP: 1=ta:1[],2=tb:1[]"]
8 [shape=box,label="M: a:1/1\nP: 1=ta:2[],2=tb:0[]"]
9 [shape=box,label="M: b:2/1\nP: 1=ta:0[],2=tb:2[]"]
10 [shape=box,label="M: a:1/1,b:1/1\nP: 0=entry:1[1],1=ta:3[]"]
11 [shape=box,label="M: a:1/1\nP: 1=ta:2[],2=tb:1[]"]
12 [shape=box,label="M: a:1/1,b:1/1\nP: 1=ta:3[],2=tb:0[]"]
13 [shape=box,label="M: b:2/1\nP: 1=ta:1[],2=tb:2[]"]
14 [shape=box,label="M: a:2/1,b:2/1\nP: 1=ta:0[],2=tb:3[]"]
15 [shape=box,label="M: a:1/1\nP: 0=entry:1[1],1=ta:4[]"]
16 [shape=box,label="M: a:1/1,b:1/1\nP: 1=ta:3[],2=tb:1[]"]
17 [shape=box,label="M: a:1/1\nP: 1=ta:4[],2=tb:0[]"]
18 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:2[],2=tb:2[]"]
19 [shape=box,label="M: a:2/1,b:2/1\nP: 1=ta:1[],2=tb:3[]"]
20 [shape=box,label="M: b:2/1\nP: 1=ta:0[],2=tb:4[]"]
22 [shape=box,label="M: a:1/1\nP: 1=ta:4[],2=tb:1[]"]
24 [shape=box,label="M: a:1/1,b:1/1\nP: 1=ta:3[],2=tb:1[]?b"]
25 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:2[],2=tb:2[]?a"]
26 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:2[]?b,2=tb:2[]"]
27 [shape=box,label="M: b:2/1\nP: 1=ta:1[],2=tb:4[]"]
28 [shape=box,label="M: a:2/1,b:2/1\nP: 1=ta:1[]?a,2=tb:3[]"]
30 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:4[],2=tb:2[]"]
32 [shape=box,label="M: a:1/1\nP: 1=ta:4[],2=tb:1[]?b"]
33 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:2[]?b,2=tb:2[]?a"]
34 [shape=box,label="M: b:2/1\nP: 1=ta:1[]?a,2=tb:4[]"]
36 [shape=box,label="M: a:1/1,b:2/1\nP: 1=ta:2[],2=tb:4[]"]
48 [shape=box,label="M: \nP: 1=ta:1[],2=tb:1[]?b"]
49 [shape=box,label="M: \nP: 1=ta:1[]?a,2=tb:1[]"]
51 [shape=box,label="M: b:2/1\nP: 1=ta:1[],2=tb:2[]?a"]
52 [shape=box,label="M: a:1/1\nP: 1=ta:2[],2=tb:1[]?b"]
53 [shape=box,label="M: b:2/1\nP: 1=ta:1[]?a,2=tb:2[]"]
54 [shape=box,label="M: a:1/1\nP: 1=ta:2[]?b,2=tb:1[]"]
1 -> 3 [style=bold,color=red,weight=10,label="0@1 spawn tb ; "]
1 -> 2 [style=bold,color=red,weight=10,label="1@0 label loop: ; "]
2 -> 5 [constraint=false,label="0@1 spawn tb ; "]
2 -> 6 [style=bold,color=red,weight=10,label="1@1 enter a ; ok -> 1"]
3 -> 5 [style=bold,color=red,weight=10,label="1@0 label loop: ; "]
3 -> 4 [style=bold,color=red,weight=10,label="2@0 label loop: ; "]
4 -> 7 [constraint=false,label="1@0 label loop: ; "]
4 -> 9 [style=bold,color=red,weight=10,label="2@1 enter b ; ok -> 1"]
5 -> 8 [style=bold,color=red,weight=10,label="1@1 enter a ; ok -> 1"]
5 -> 7 [style=bold,color=red,weight=10,label="2@0 label loop: ; "]
6 -> 8 [constraint=false,label="0@1 spawn tb ; "]
6 -> 10 [style=bold,color=red,weight=10,label="1@2 enter b ; ok -> 1"]
7 -> 11 [constraint=false,label="1@1 enter a ; ok -> 1"]
7 -> 13 [style=bold,color=red,weight=10,label="2@1 enter b ; ok -> 1"]
8 -> 12 [style=bold,color=red,weight=10,label="1@2 enter b ; ok -> 1"]
8 -> 11 [style=bold,color=red,weight=10,label="2@0 label loop: ; "]
9 -> 13 [constraint=false,label="1@0 label loop: ; "]
9 -> 14 [style=bold,color=red,weight=10,label="2@2 enter a ; ok -> 1"]
10 -> 12 [constraint=false,label="0@1 spawn tb ; "]
10 -> 15 [style=bold,color=red,weight=10,label="1@3 leave b ; ->free"]
11 -> 16 [constraint=false,label="1@2 enter b ; ok -> 1"]
11 -> 18 [style=bold,color=red,weight=10,label="2@1 enter b ; ok -> 1"]
12 -> 17 [style=bold,color=red,weight=10,label="1@3 leave b ; ->free"]
12 -> 16 [style=bold,color=red,weight=10,label="2@0 label loop: ; "]
13 -> 18 [constraint=false,label="1@1 enter a ; ok -> 1"]
13 -> 19 [style=bold,color=red,weight=10,label="2@2 enter a ; ok -> 1"]
14 -> 19 [constraint=false,label="1@0 label loop: ; "]
14 -> 20 [style=bold,color=red,weight=10,label="2@3 leave a ; ->free"]
15 -> 17 [constraint=false,label="0@1 spawn tb ; "]
15 -> 1 [constraint=false,label="1@4 leave a ; ->free\n1@5 jmp loop ; "]
16 -> 22 [constraint=false,label="1@3 leave b ; ->free"]
16 -> 24 [style=bold,color=red,weight=10,label="2@1 enter b ; blocked by 1"]
17 -> 3 [constraint=false,label="1@4 leave a ; ->free\n1@5 jmp loop ; "]
17 -> 22 [style=bold,color=red,weight=10,label="2@0 label loop: ; "]
18 -> 26 [style=bold,color=red,weight=10,label="1@2 enter b ; blocked by 2"]
18 -> 25 [style=bold,color=red,weight=10,label="2@2 enter a ; blocked by 1"]
19 -> 28 [style=bold,color=red,weight=10,label="1@1 enter a ; blocked by 2"]
19 -> 27 [style=bold,color=red,weight=10,label="2@3 leave a ; ->free"]
20 -> 27 [constraint=false,label="1@0 label loop: ; "]
20 -> 3 [constraint=false,label="2@4 leave b ; ->free\n2@5 jmp loop ; "]
22 -> 4 [constraint=false,label="1@4 leave a ; ->free\n1@5 jmp loop ; "]
22 -> 30 [style=bold,color=red,weight=10,label="2@1 enter b ; ok -> 1"]
24 -> 32 [style=bold,color=red,weight=10,label="1@3 leave b ; ->free"]
25 -> 33 [constraint=false,label="1@2 enter b ; blocked by 2"]
26 -> 33 [style=bold,color=red,weight=10,label="2@2 enter a ; blocked by 1"]
27 -> 36 [style=bold,color=red,weight=10,label="1@1 enter a ; ok -> 1"]
27 -> 5 [constraint=false,label="2@4 leave b ; ->free\n2@5 jmp loop ; "]
28 -> 34 [style=bold,color=red,weight=10,label="2@3 leave a ; ->free"]
30 -> 9 [constraint=false,label="1@4 leave a ; ->free\n1@5 jmp loop ; "]
30 -> 51 [style=bold,color=red,weight=10,label="2@2 enter a ; blocked by 1\n1@4 leave a ; ->free\n1@5 jmp loop ; \n1@0 label loop: ; "]
32 -> 48 [style=bold,color=red,weight=10,label="1@4 leave a ; ->free\n1@5 jmp loop ; \n1@0 label loop: ; "]
32 -> 30 [constraint=false,label="2@1 enter b ; ok -> 1"]
34 -> 36 [constraint=false,label="1@1 enter a ; ok -> 1"]
34 -> 49 [style=bold,color=red,weight=10,label="2@4 leave b ; ->free\n2@5 jmp loop ; \n2@0 label loop: ; "]
36 -> 54 [style=bold,color=red,weight=10,label="1@2 enter b ; blocked by 2\n2@4 leave b ; ->free\n2@5 jmp loop ; \n2@0 label loop: ; "]
36 -> 8 [constraint=false,label="2@4 leave b ; ->free\n2@5 jmp loop ; "]
48 -> 52 [style=bold,color=red,weight=10,label="1@1 enter a ; ok -> 1"]
48 -> 13 [constraint=false,label="2@1 enter b ; ok -> 1"]
49 -> 11 [constraint=false,label="1@1 enter a ; ok -> 1"]
49 -> 53 [style=bold,color=red,weight=10,label="2@1 enter b ; ok -> 1"]
51 -> 25 [constraint=false,label="1@1 enter a ; ok -> 1"]
51 -> 19 [constraint=false,label="2@2 enter a ; ok -> 1"]
52 -> 24 [constraint=false,label="1@2 enter b ; ok -> 1"]
52 -> 18 [constraint=false,label="2@1 enter b ; ok -> 1"]
53 -> 18 [constraint=false,label="1@1 enter a ; ok -> 1"]
53 -> 28 [constraint=false,label="2@2 enter a ; ok -> 1"]
54 -> 16 [constraint=false,label="1@2 enter b ; ok -> 1"]
54 -> 26 [constraint=false,label="2@1 enter b ; ok -> 1"]
}