Simulation Control

The simulation control panel is the left sub window of the simulator. It is used to control the simulation and to select the (symbolic) state or transition to be visualized in the other two windows of the simulator. The control panel is divided in two parts:

The upper part is used for performing step-by-step simulation. A window displays the enabled transitions, with the currently selected transition highlighted. Pressing the Next-button causes the simulated system to take the selected transition. The Reset-button is used to reset the simulated system to its initial state.

The lower part of the control panel has a window displaying the generated trace. The displayed trace is an alternating sequence of control location vectors and transitions. The simulation always progresses from the highlighted element in this window. It is possible to change the selection using the mouse.

The six buttons below the trace window have the following semantics:

• Prev: highlights the element immediately preceding the current selection (if any) in the trace.
• Next: highlights the element immediately following the current selection (if any) in the trace.
• Replay: replays the trace starting from the currently selected element.
• Open: opens a file selector window for loading a trace from file.
• Save: opens a file selector for saving the current trace on file.
• Random: starts a random simulation where the simulator proceed automatically by randomly selecting enabled transitions.

The slider at the bottom of the control panel is used for controlling the speed used when traces are replayed and when random simulation is performed.