For Toady One.

Generating world using parameter set S I CRASHTEST
Seed: a
History Seed: b
Name Seed: c
Creature Seed: d
crash.

Generating world using parameter set S I CRASHTEST
Seed: h
History Seed: i
Name Seed: j
Creature Seed: k
crash.

u,n,i,x : no crash
m,i,d,i : 124 year crash
p,i,k,e : successful 116 years world outputted.
q,i,x,o : no crash
b,i,k,e : crash a bit later.
c,i,t,y : successful 228 years world outputted.
d,i,v,a : no crash
e,v,v,a : huh, years ticking speeded up after 540 years, everyone must be dead.