42 lines
1.2 KiB
42 lines
1.2 KiB
import stormpy
|
|
import stormpy.core
|
|
import stormpy.simulator
|
|
|
|
import stormpy.examples
|
|
import stormpy.examples.files
|
|
import random
|
|
|
|
"""
|
|
Simulator for nondeterministic models
|
|
"""
|
|
def example_simulator_01():
|
|
path = stormpy.examples.files.prism_mdp_maze
|
|
prism_program = stormpy.parse_prism_program(path)
|
|
|
|
model = stormpy.build_model(prism_program)
|
|
simulator = stormpy.simulator.create_simulator(model, seed=42)
|
|
# 5 paths of at most 20 steps.
|
|
paths = []
|
|
for m in range(5):
|
|
path = []
|
|
state = simulator.restart()
|
|
path = [f"{state}"]
|
|
for n in range(20):
|
|
actions = simulator.available_actions()
|
|
select_action = random.randint(0,len(actions)-1)
|
|
#print(f"Randomly select action nr: {select_action} from actions {actions}")
|
|
path.append(f"--act={actions[select_action]}-->")
|
|
state = simulator.step(actions[select_action])
|
|
#print(state)
|
|
path.append(f"{state}")
|
|
if simulator.is_done():
|
|
#print("Trapped!")
|
|
break
|
|
paths.append(path)
|
|
for path in paths:
|
|
print(" ".join(path))
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
example_simulator_01()
|