Abstract. We present a collection of command-line tools designed to generate, filter, convert, simplify, lists of Linear-time Temporal Logic formulas. These tools were introduced in the release 1.0 of Spot, and we believe they should be of interest to anybody who has to manipulate LTL formulas. We focus on two tools in particular: ltlfilt, to filter and transform formulas, and ltlcross to cross-check LTL-to-Büchi-Automata translators.
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