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47 lines
1.7 KiB
47 lines
1.7 KiB
import stormpy
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import stormpy.core
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import stormpy.examples
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import stormpy.examples.files
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from stormpy.storage import Expression
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def example_analysis_02():
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path = stormpy.examples.files.prism_dtmc_die
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prism_program = stormpy.parse_prism_program(path)
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formula_str = "P=? [F s=7 & d=2]"
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properties = stormpy.parse_properties(formula_str, prism_program)
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model = stormpy.build_symbolic_model(prism_program, properties)
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result = stormpy.model_checking(model, properties[0])
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filter = stormpy.create_filter_initial_states_symbolic(model)
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result.filter(filter)
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assert result.min == result.max
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print(result.min)
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# Create an auxiliary mapping to build expressions that matches some state.
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variables = dict()
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for m in prism_program.modules:
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for v in m.integer_variables:
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variables[v.name] = v.expression_variable.get_expression()
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expr_manager = prism_program.expression_manager
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expr_for_state_1 = Expression.Conjunction([Expression.Eq(variables["s"],expr_manager.create_integer(1)),
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Expression.Eq(variables["d"],expr_manager.create_integer(0))])
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expr_for_state_2 = Expression.And(Expression.Eq(variables["s"],expr_manager.create_integer(4)),
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Expression.Eq(variables["d"],expr_manager.create_integer(0)))
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result = stormpy.model_checking(model, properties[0])
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cached_res = result.clone()
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cached_res.filter(stormpy.create_filter_symbolic(model,expr_for_state_1))
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print(cached_res.min)
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result.filter(stormpy.create_filter_symbolic(model,expr_for_state_2))
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assert result.min == result.max
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print(result.min)
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if __name__ == '__main__':
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example_analysis_02()
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