$BENCH_HOME/bin/storm-pomdp --prism $BENCH_HOME/models/water/water_grid_repeat.prism --prop $BENCH_HOME/models/water/water.props rbrmax2 -const B1=590,B2=50 --timemem --statistics --revised --reward-aware --unfold-reward-bound --belief-exploration unfold --size-threshold 4096
Storm-pomdp. Unfolds cost bounds, cost aware, with cutoffs and size threshold 2^12
Storm-POMDP 1.9.1 (dev)
Date: Mon Feb 10 15:29:58 2025
Command line arguments: --prism $BENCH_HOME/models/water/water_grid_repeat.prism --prop $BENCH_HOME/models/water/water.props rbrmax2 -const 'B1=590,B2=50' --timemem --statistics --revised --reward-aware --unfold-reward-bound --belief-exploration unfold --size-threshold 4096
Current working directory: $BENCH_HOME/experiments64gb
Time for model input parsing: 0.003s.
Time for model construction: 0.013s.
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Model type: POMDP (sparse)
States: 34
Transitions: 132
Choices: 130
Observations: 5
Reward Models: homeReached, energy
State Labels: 2 labels
* deadlock -> 0 item(s)
* init -> 1 item(s)
Choice Labels: 5 labels
* flip -> 2 item(s)
* north -> 32 item(s)
* east -> 32 item(s)
* west -> 32 item(s)
* south -> 32 item(s)
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Analyzing property 'Pmax=? [true U^{rew{"energy"}<=590 , rew{"homeReached"}>=50 }true]'
Perform explicit unfolding of reward bounds.
Extend observation function to become reward aware.
bounded reachability processing done. POMDP Information:
--------------------------------------------------------------
Model type: POMDP (sparse)
States: 1121747
Transitions: 4353678
Choices: 4287023
Observations: 23
Reward Models: energy, homeReached
State Labels: 4 labels
* dim0_active -> 1121681 item(s)
* dim1_active -> 5629 item(s)
* deadlock -> 0 item(s)
* init -> 1 item(s)
Choice Labels: 5 labels
* west -> 1055092 item(s)
* south -> 1055092 item(s)
* north -> 1055092 item(s)
* flip -> 66655 item(s)
* east -> 1055092 item(s)
--------------------------------------------------------------
Transformed formula: Pmax=? [(true & "dim0_active") U ((true & "dim0_active") & "dim1_active")]
Time for pre-processing: 2.227s.
Exploring the belief MDP...
Exploring the belief space...
Exploration stopped before all beliefs were explored. 4100 beliefs discovered. 2838 beliefs explored.
Constructing the belief MDP...
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Model type: MDP (sparse)
States: 4102
Transitions: 28918
Choices: 19840
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: 0.002s.
Time for building the belief MDP: 0.001s.
Time for analyzing the belief MDP: 0.002s.
##### POMDP Approximation Statistics ######
# Input model:
--------------------------------------------------------------
Model type: POMDP (sparse)
States: 1121747
Transitions: 4353674
Choices: 4287023
Observations: 41
Reward Models: energy, homeReached
State Labels: 4 labels
* dim0_active -> 1121681 item(s)
* dim1_active -> 5629 item(s)
* deadlock -> 0 item(s)
* init -> 1 item(s)
Choice Labels: 5 labels
* west -> 1055092 item(s)
* south -> 1055092 item(s)
* north -> 1055092 item(s)
* flip -> 66655 item(s)
* east -> 1055092 item(s)
--------------------------------------------------------------
# Max. Number of states with same observation: 240414
# Pre-computations detected that the belief MDP is finite.
# Total check time: 11.939s
##########################################
Result: ≥ 2.364743867e-138
Time for POMDP analysis: 12.165s.
Performance statistics:
* peak memory usage: 2849MB
* CPU time: 13.529s
* wallclock time: 14.418s
############################## Notes ##############################
Storm-pomdp. Unfolds cost bounds, cost aware, with cutoffs and size threshold 2^12