Verification and enforcement of access control policies
Formal Methods in System Design
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This extended abstract presents the main ideas behind regular linear-time temporal logic (RLTL), a logic that generalizes linear-time temporal logic (LTL) with the ability to use regular expressions arbitrarily as sub-expressions. Unlike LTL, RLTL can define all !-regular languages and unlike previous approaches, RLTL is defined with an algebraic signature, does not depend on fix-points in its syntax, and provides past operators via a single previous-step operator for basic state formulas. The satisfiability and model checking problems for RLTL are PSPACE-complete, which is optimal for extensions of LTL.