Targets API #52
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Targets API #52
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--------- Co-authored-by: Alexey Menshutin <alex.menshutin99@gmail.com>
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Signed-off-by: Старцев Матвей <tozarin@yandex.ru>
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Signed-off-by: Старцев Матвей <tozarin@yandex.ru>
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Adds targets API and path selectors which give priority to closest targets.
A target can be understood as a 'task' for symbolic machine which it tries to complete. For example, a task can have an attached location which should be visited by a state to consider the task completed. Also, the targets can produce some effects on states visiting them.
Tasks can have 'child' tasks which should be completed only after its parent has been completed. For example, it allows to force the execution along the specific path.
Targets are designed to be shared between all the symbolic execution states. Due to this, once there is a state which has reached the target which has no children, it is logically removed from the targets tree. The other states ignore such removed targets.