:: String -> Int -package:hledger-lib -package:speculate is:exact -package:ViennaRNAParser -package:gpolyline -package:Cabal -package:numeric-prelude -package:ghc -package:locators -package:base package:ChasingBottoms

nonBottomError s raises an exception (AssertionFailed) that is not caught by isBottom. Use s to describe the exception.