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67 lines
2.4 KiB
67 lines
2.4 KiB
import stormpy
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import numpy as np
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def example_building_dtmcs_01():
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# Use the SparseMatrixBuilder for constructing the transition matrix
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builder = stormpy.SparseMatrixBuilder(rows = 0, columns = 0, entries = 0, force_dimensions = False, has_custom_row_grouping = False)
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# New Transition from state 0 to target state 1 with probability 0.5
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builder.add_next_value(row = 0, column = 1, value = 0.5)
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builder.add_next_value(0, 2, 0.5)
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builder.add_next_value(1, 3, 0.5)
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builder.add_next_value(1, 4, 0.5)
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builder.add_next_value(2, 5, 0.5)
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builder.add_next_value(2, 6, 0.5)
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builder.add_next_value(3, 7, 0.5)
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builder.add_next_value(3, 1, 0.5)
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builder.add_next_value(4, 8, 0.5)
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builder.add_next_value(4, 9, 0.5)
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builder.add_next_value(5, 10, 0.5)
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builder.add_next_value(5, 11, 0.5)
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builder.add_next_value(6, 2, 0.5)
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builder.add_next_value(6, 12, 0.5)
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# Add transitions for the final states
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for s in range(7,13):
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builder.add_next_value(s, s, 1)
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# Build matrix
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transition_matrix = builder.build(13, 13)
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# State labeling
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state_labeling = stormpy.storage.StateLabeling(13)
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# Add labels
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labels = {'init','one', 'two', 'three', 'four', 'five', 'six', 'done', 'deadlock'}
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for label in labels:
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state_labeling.add_label(label)
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# Add label to state
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state_labeling.add_label_to_state('init', 0)
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state_labeling.add_label_to_state('one', 7)
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state_labeling.add_label_to_state('two', 8)
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state_labeling.add_label_to_state('three', 9)
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state_labeling.add_label_to_state('four', 10)
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state_labeling.add_label_to_state('five', 11)
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state_labeling.add_label_to_state('six', 12)
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# Add label 'done' to multiple states
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state_labeling.set_states('done', stormpy.BitVector(13, [7, 8, 9, 10, 11, 12]))
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# Reward models:
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reward_models = {}
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# Create a vector representing the state-action rewards
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action_reward = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
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reward_models['coin_flips'] = stormpy.SparseRewardModel(optional_state_action_reward_vector = action_reward)
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components = stormpy.SparseModelComponents(transition_matrix=transition_matrix, state_labeling=state_labeling, reward_models=reward_models)
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dtmc = stormpy.storage.SparseDtmc(components)
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print(dtmc)
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if __name__ == '__main__':
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example_building_dtmcs_01()
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