Representing first order logic-based specifications in Petri-net-like graphs

We describe a formalism that maps a first order logic-based specification into a graph representation (Influence Graph). The graph can be shown to be a representation scheme equivalent to ordinary Petri nets, with an emphasis on general causal implications instead of resource usage. By making the procedural aspects of a system explicit, the graph helps users in validating specifications of system behaviors. A program has been implemented to construct, simplify and analyze influence graphs.