New graph with 40 nodes

test/inputs/40nodes.graph

+40 92
+2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
+1 3 21
+1 2 4 22
+1 3 5 23
+1 4 6 24
+1 5 7 25
+1 6 8 26
+1 7 9 27
+1 8 10 28
+1 9 11 29
+1 10 12 30
+1 11 13 31
+1 12 14 32
+1 13 15 33
+1 14 16 34
+1 15 17 35
+1 16 18 36
+1 17 19 37
+1 18 20 38
+1 19 39
+40 2 22
+40 3 21 23
+40 4 22 24
+40 5 23 25
+40 6 24 26
+40 7 25 27
+40 8 26 28
+40 9 27 28
+40 10 28 30
+40 11 29 31
+40 12 30 32
+40 13 31 33
+40 14 32 34
+40 15 33 35
+40 16 34 36
+40 17 35 37
+40 18 36 38
+40 19 37 39
+40 20 38
+21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
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