
abs.erl:12:1: Function i1/0 has no local return
abs.erl:16:5: The pattern 'true' can never match the type 'false'
abs.erl:23:1: Function i2/0 has no local return
abs.erl:27:5: The pattern 'true' can never match the type 'false'
abs.erl:34:1: Function i3/0 has no local return
abs.erl:37:5: The pattern 'true' can never match the type 'false'
abs.erl:45:1: Function i4/0 has no local return
abs.erl:49:5: The pattern 'true' can never match the type 'false'
