PRISM
=====
Version: 4.5.dev
Date: Sat Mar 14 15:25:48 UTC 2020
Hostname: e72bdd194fc5
Memory limits: cudd=4g, java(heap)=11g
Command line: prism -javamaxmem 11g -cuddmaxmem 4g -heuristic speed -e 1e-6 -maxiters 1000000 consensus.4.prism consensus.props --property disagree -const K=4
Parsing model file "consensus.4.prism"...
Type: MDP
Modules: process1 process2 process3 process4
Variables: counter pc1 coin1 pc2 coin2 pc3 coin3 pc4 coin4
Parsing properties file "consensus.props"...
5 properties:
(1) "c1": P>=1 [ F "finished" ]
(2) "c2": Pmin=? [ F "finished"&"all_coins_equal_1" ]
(3) "disagree": Pmax=? [ F "finished"&!"agree" ]
(4) "steps_max": R{"steps"}max=? [ F "finished" ]
(5) "steps_min": R{"steps"}min=? [ F "finished" ]
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Model checking: "disagree": Pmax=? [ F "finished"&!"agree" ]
Model constants: K=4
Warning: Switching to sparse engine and (backwards) Gauss Seidel (default for heuristic=speed).
Building model...
Model constants: K=4
Computing reachable states...
Reachability (BFS): 195 iterations in 0.13 seconds (average 0.000662, setup 0.00)
Time for model construction: 0.086 seconds.
Type: MDP
States: 43136 (1 initial)
Transitions: 144352
Choices: 115840
Transition matrix: 2336 nodes (3 terminal), 144352 minterms, vars: 18r/18c/4nd
Prob0A: 149 iterations in 0.32 seconds (average 0.002128, setup 0.00)
Prob1E: 2480 iterations in 3.25 seconds (average 0.001309, setup 0.00)
yes = 10872, no = 910, maybe = 31354
Computing remaining probabilities...
Engine: Sparse
Building sparse matrix... [n=43136, nc=94344, nnz=118168, k=4] [1.5 MB]
Creating vector for yes... [337.0 KB]
Allocating iteration vectors... [2 x 337.0 KB]
TOTAL: [2.5 MB]
Starting iterations...
Iteration 4799: max relative diff=0.000028, 5.00 sec so far
Iterative method: 6873 iterations in 7.22 seconds (average 0.001044, setup 0.05)
Value in the initial state: 0.15605695062063785
Time for model checking: 10.676 seconds.
Result: 0.15605695062063785 (value in the initial state)
Overall running time: 11.324 seconds.
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Note: There was 1 warning during computation.