You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.3 KiB
47 lines
1.3 KiB
import stormpy
|
|
import stormpy.core
|
|
import stormpy.simulator
|
|
|
|
|
|
import stormpy.shields
|
|
|
|
import stormpy.examples
|
|
import stormpy.examples.files
|
|
|
|
"""
|
|
|
|
Example of exporting a Pre Safety Shield
|
|
to a file
|
|
|
|
"""
|
|
|
|
def pre_schield():
|
|
path = stormpy.examples.files.prism_mdp_lava_simple
|
|
formula_str = "Pmax=? [G !\"AgentIsInLavaAndNotDone\"]"
|
|
|
|
program = stormpy.parse_prism_program(path)
|
|
formulas = stormpy.parse_properties_for_prism_program(formula_str, program)
|
|
|
|
options = stormpy.BuilderOptions([p.raw_formula for p in formulas])
|
|
options.set_build_state_valuations(True)
|
|
options.set_build_choice_labels(True)
|
|
options.set_build_all_labels()
|
|
model = stormpy.build_sparse_model_with_options(program, options)
|
|
|
|
initial_state = model.initial_states[0]
|
|
assert initial_state == 0
|
|
|
|
shield_specification = stormpy.logic.ShieldExpression(stormpy.logic.ShieldingType.PRE_SAFETY, stormpy.logic.ShieldComparison.Absolute, 0.9)
|
|
result = stormpy.model_checking(model, formulas[0], extract_scheduler=True, shield_expression=shield_specification)
|
|
|
|
assert result.has_scheduler
|
|
assert result.has_shield
|
|
|
|
shield = result.shield
|
|
|
|
stormpy.shields.export_shield(model, shield, "pre.shield")
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
pre_schield()
|