also: ありはしない
expression
doesn't even exist; there is no way it exists
Emphatic negative of ある, often expressing strong denial or disbelief. Used in casual speech.
そんな都合のいい話、ありゃしないよ。
There's no way such a convenient story exists.
あの店にまだ在庫があるなんてありはしない。
It's impossible that store still has stock.