PRISM
=====
Version: 4.5.dev
Date: Fri Feb 26 16:40:54 CET 2021
Hostname: christopher
Memory limits: cudd=4g, java(heap)=11g
Command line: prism -javamaxmem 11g -cuddmaxmem 4g -heuristic speed -e 1e-6 -maxiters 1000000 consensus.2.prism consensus.props --property steps_min -const K=2
Parsing model file "consensus.2.prism"...
Type: MDP
Modules: process1 process2
Variables: counter pc1 coin1 pc2 coin2
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: "steps_min": R{"steps"}min=? [ F "finished" ]
Model constants: K=2
Warning: Switching to sparse engine and (backwards) Gauss Seidel (default for heuristic=speed).
Building model...
Model constants: K=2
Computing reachable states...
Reachability (BFS): 37 iterations in 0.00 seconds (average 0.000027, setup 0.00)
Time for model construction: 0.014 seconds.
Type: MDP
States: 272 (1 initial)
Transitions: 492
Choices: 400
Transition matrix: 365 nodes (3 terminal), 492 minterms, vars: 10r/10c/2nd
Prob0A: 17 iterations in 0.01 seconds (average 0.000294, setup 0.00)
Prob1E: 18 iterations in 0.00 seconds (average 0.000056, setup 0.00)
Warning: PRISM hasn't checked for zero-reward loops.
Your minimum rewards may be too low...
goal = 8, inf = 0, maybe = 264
Computing remaining rewards...
Engine: Sparse
Building sparse matrix (transitions)... [n=272, nc=392, nnz=484, k=2] [8.3 KB]
Building sparse matrix (transition rewards)... [n=272, nc=392, nnz=0, k=2] [2.6 KB]
Creating vector for state rewards... [2.1 KB]
Creating vector for inf... [2.1 KB]
Allocating iteration vectors... [2 x 2.1 KB]
TOTAL: [19.4 KB]
Starting iterations...
Iterative method: 390 iterations in 0.00 seconds (average 0.000003, setup 0.00)
Value in the initial state: 47.998324237033074
Time for model checking: 0.007 seconds.
Result: 47.998324237033074 (value in the initial state)
Overall running time: 0.241 seconds.
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Note: There were 2 warnings during computation.