PRISM
=====
Version: 4.5.dev
Date: Sat Mar 14 15:03:19 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 speed-ind.prism speed-ind.props --property change_state -const T=2100
Parsing model file "speed-ind.prism"...
Type: CTMC
Modules: S1_def S2_def S3_def S4_def Y_def Z_def CC_def XX_def
Variables: S1 S2 S3 S4 Y Z CC XX
Parsing properties file "speed-ind.props"...
1 property:
(1) "change_state": P=? [ F<=T ((S2>80)&(S3<20)) ]
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Model checking: "change_state": P=? [ F<=T ((S2>80)&(S3<20)) ]
Property constants: T=2100
Warning: Switching to sparse engine and (backwards) Gauss Seidel (default for heuristic=speed).
Building model...
Computing reachable states...
Reachability (BFS): 38 iterations in 0.04 seconds (average 0.001132, setup 0.00)
Time for model construction: 32.146 seconds.
Type: CTMC
States: 743424 (1 initial)
Transitions: 9518080
Rate matrix: 33024 nodes (187 terminal), 9518080 minterms, vars: 58r/58c
Computing probabilities...
Engine: Sparse
Number of non-absorbing states: 718848 of 743424 (96.7%)
Building sparse matrix... [n=743424, nnz=9219072, compact] [35.9 MB]
Creating vector for diagonals... [5.7 MB]
Allocating iteration vectors... [3 x 5.7 MB]
TOTAL: [58.6 MB]
Uniformisation: q.t = 2.797911 x 2100.000000 = 5875.612619
Fox-Glynn: left = 5336, right = 6527
Starting iterations...
Iteration 169 (of 6527): max relative diff=0.067337, 5.02 sec so far
Iteration 337 (of 6527): max relative diff=0.028687, 10.03 sec so far
Iteration 505 (of 6527): max relative diff=0.015675, 15.05 sec so far
Iteration 673 (of 6527): max relative diff=0.009357, 20.07 sec so far
Iteration 841 (of 6527): max relative diff=0.005872, 25.08 sec so far
Iteration 1008 (of 6527): max relative diff=0.003976, 30.08 sec so far
Iteration 1176 (of 6527): max relative diff=0.003026, 35.10 sec so far
Iteration 1344 (of 6527): max relative diff=0.002374, 40.12 sec so far
Iteration 1512 (of 6527): max relative diff=0.001910, 45.14 sec so far
Iteration 1680 (of 6527): max relative diff=0.001569, 50.16 sec so far
Iteration 1848 (of 6527): max relative diff=0.001312, 55.18 sec so far
Iteration 2015 (of 6527): max relative diff=0.001117, 60.19 sec so far
Iteration 2183 (of 6527): max relative diff=0.000963, 65.20 sec so far
Iteration 2351 (of 6527): max relative diff=0.000842, 70.22 sec so far
Iteration 2518 (of 6527): max relative diff=0.000745, 75.24 sec so far
Iteration 2685 (of 6527): max relative diff=0.000667, 80.27 sec so far
Iteration 2852 (of 6527): max relative diff=0.000602, 85.27 sec so far
Iteration 3019 (of 6527): max relative diff=0.000548, 90.28 sec so far
Iteration 3187 (of 6527): max relative diff=0.000502, 95.29 sec so far
Iteration 3355 (of 6527): max relative diff=0.000463, 100.31 sec so far
Iteration 3523 (of 6527): max relative diff=0.000429, 105.31 sec so far
Iteration 3691 (of 6527): max relative diff=0.000400, 110.32 sec so far
Iteration 3860 (of 6527): max relative diff=0.000374, 115.34 sec so far
Iteration 4028 (of 6527): max relative diff=0.000352, 120.36 sec so far
Iteration 4196 (of 6527): max relative diff=0.000332, 125.37 sec so far
Iteration 4364 (of 6527): max relative diff=0.000314, 130.40 sec so far
Iteration 4532 (of 6527): max relative diff=0.000298, 135.42 sec so far
Iteration 4699 (of 6527): max relative diff=0.000283, 140.43 sec so far
Iteration 4867 (of 6527): max relative diff=0.000270, 145.45 sec so far
Iteration 5034 (of 6527): max relative diff=0.000258, 150.47 sec so far
Iteration 5202 (of 6527): max relative diff=0.000247, 155.47 sec so far
Iteration 5368 (of 6527): max relative diff=0.000237, 160.48 sec so far
Iteration 5529 (of 6527): max relative diff=0.000228, 165.49 sec so far
Iteration 5690 (of 6527): max relative diff=0.000219, 170.50 sec so far
Iteration 5852 (of 6527): max relative diff=0.000211, 175.52 sec so far
Iteration 6014 (of 6527): max relative diff=0.000204, 180.54 sec so far
Iteration 6175 (of 6527): max relative diff=0.000197, 185.55 sec so far
Iteration 6337 (of 6527): max relative diff=0.000191, 190.56 sec so far
Iteration 6499 (of 6527): max relative diff=0.000185, 195.57 sec so far
Iterative method: 6527 iterations in 207.03 seconds (average 0.030095, setup 10.60)
Value in the initial state: 0.04229449797846471
Time for model checking: 207.326 seconds.
Result: 0.04229449797846471 (value in the initial state)
Overall running time: 240.07 seconds.
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Note: There was 1 warning during computation.