System Z2 is a program analyzer generating system using abstract interpretation.
An analyzer generated by Z2 has some problems of being difficult for the user to observe its analysis results.
We have developed a graphic user interface generating system ZV on top of system Z2. System Z2 gets an abstract interpreter specification as an input, and generates collecting analyzer and its graphic user interface. Through this interface, analysis results in an intuitive relation with the source program, can be shown in an intuitive graphical form. The user can examine the analysis result at each program point interactively by just clicking the mouse button.
We successfully implemented various program analyzers using system Z2 plus ZV.