I think I found a duplicate pattern in ‘reduction4safe.aiml’
On lines 7200 and 7709 are 2 identical patterns (except that 1 has an extra space in the pattern):
<category>
<pattern>IT WOULD SEEM THAT *</pattern>
<template><srai><star/></srai></template>
</category>
<category><pattern>IT WOULD SEEM THAT *</pattern>
<template><srai><star/></srai></template>
</category>