MOP 2.0 Past Time Linear Temporal Logic with Calls and Returns (PTCaRet) Plugin
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This page allows one to synthesize online monitors from past time linear temporal logic with call and return (ptCaRet). ptCaRet extends the past time linear temporal logic (PTLTL) with call/return atoms. In addition to the standard temporal operators, it also includes abstract variants of past temporal operators, which can express properties over traces in which terminated function or procedure executions are abstracted away into a call and a corresponding return. This way, ptCaRet can express safety properties about procedural programs which cannot be expressed using conventional linear temporal logics.
The PTCARET plugin for MOP is available for download below. The generated monitors are push-down automata-based; see links in the top-right box for details and syntax. These monitors for ptCaRet specifications are language-independent and can be used in various language instances of MOP, as well as in other monitoring applications not necessarily based on MOP. Simply chose one of the examples below from the list on the left, or write your own in the text box, then click run.
Please press the Run button once and wait; it may take a few seconds to run PTCaRetPlugin2.0; the execution of PTCaRetPlugin2.0 using this web interface is limited to 2 minutes of CPU time and 500 MB of RAM.