$BENCH_HOME/bin/storm-pomdp --prism $BENCH_HOME/models/walk/walk.prism --prop $BENCH_HOME/models/walk/walk.props rbrmax1 -const N=40,B1=80 --timemem --statistics --revised --reward-aware --unfold-reward-bound --belief-exploration unfold --size-threshold 131072
Storm-pomdp. Unfolds cost bounds, cost aware, with cutoffs and size threshold 2^17
Storm-POMDP 1.9.1 (dev)
Date: Mon Feb 10 15:03:44 2025
Command line arguments: --prism $BENCH_HOME/models/walk/walk.prism --prop $BENCH_HOME/models/walk/walk.props rbrmax1 -const 'N=40,B1=80' --timemem --statistics --revised --reward-aware --unfold-reward-bound --belief-exploration unfold --size-threshold 131072
Current working directory: $BENCH_HOME/experiments64gb
Time for model input parsing: 0.001s.
Time for model construction: 0.009s.
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Model type: POMDP (sparse)
States: 84
Transitions: 328
Choices: 207
Observations: 44
Reward Models: obsCost
State Labels: 3 labels
* deadlock -> 0 item(s)
* init -> 1 item(s)
* goal -> 1 item(s)
Choice Labels: 3 labels
* observe -> 41 item(s)
* move -> 82 item(s)
* stop -> 84 item(s)
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Analyzing property 'Pmax=? [true Urew{"obsCost"}<=80 "goal"]'
Perform explicit unfolding of reward bounds.
Extend observation function to become reward aware.
bounded reachability processing done. POMDP Information:
--------------------------------------------------------------
Model type: POMDP (sparse)
States: 10169
Transitions: 43303
Choices: 26858
Observations: 47
Reward Models: obsCost
State Labels: 4 labels
* goal -> 82 item(s)
* dim0_active -> 10044 item(s)
* deadlock -> 0 item(s)
* init -> 1 item(s)
Choice Labels: 3 labels
* observe -> 6684 item(s)
* stop -> 10169 item(s)
* move -> 10005 item(s)
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Transformed formula: Pmax=? [(true & "dim0_active") U ("goal" & "dim0_active")]
Time for pre-processing: 0.007s.
Exploring the belief MDP...
Exploring the belief space...
Exploration stopped before all beliefs were explored. 131074 beliefs discovered. 126572 beliefs explored.
Constructing the belief MDP...
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Model type: MDP (sparse)
States: 131040
Transitions: 2544908
Choices: 395182
Reward Models: none
State Labels: 3 labels
* target -> 1 item(s)
* init -> 1 item(s)
* bottom -> 1 item(s)
Choice Labels: none
--------------------------------------------------------------
Time for exploring beliefs: 1.712s.
Time for building the belief MDP: 0.151s.
Time for analyzing the belief MDP: 4.697s.
##### POMDP Approximation Statistics ######
# Input model:
--------------------------------------------------------------
Model type: POMDP (sparse)
States: 10169
Transitions: 43101
Choices: 26858
Observations: 48
Reward Models: obsCost
State Labels: 4 labels
* goal -> 82 item(s)
* dim0_active -> 10044 item(s)
* deadlock -> 0 item(s)
* init -> 1 item(s)
Choice Labels: 3 labels
* observe -> 6684 item(s)
* stop -> 10169 item(s)
* move -> 10005 item(s)
--------------------------------------------------------------
# Max. Number of states with same observation: 3362
# Total check time: 6.677s
##########################################
Result: ≥ 0.5559325855
Time for POMDP analysis: 6.678s.
Performance statistics:
* peak memory usage: 347MB
* CPU time: 6.617s
* wallclock time: 6.701s
############################## Notes ##############################
Storm-pomdp. Unfolds cost bounds, cost aware, with cutoffs and size threshold 2^17