./fix-syntax ./prism -javamaxmem 11g -cuddmaxmem 4g -heuristic speed -e 1e-6 -maxiters 1000000 cluster.prism cluster.props --property premium_steady -const N=128,T=2000,t=20
PRISM
=====
Version: 4.5.dev
Date: Sat Mar 14 12:39:48 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 cluster.prism cluster.props --property premium_steady -const 'N=128,T=2000,t=20'
Parsing model file "cluster.prism"...
Type: CTMC
Modules: Left Right Repairman Line ToLeft ToRight
Variables: left_n left right_n right r line line_n toleft toleft_n toright toright_n
Parsing properties file "cluster.props"...
8 properties:
(1) "below_min": R{"time_not_min"}=? [ C<=T ]
(2) "operational": R{"percent_op"}=? [ I=t ]
(3) "premium_steady": S=? [ "premium" ]
(4) "qos1": P=? [ F<=T !"minimum" ]
(5) "qos2": P=? [ F[t,t] !"minimum" ]
(6) "qos3": P=? [ "minimum" U<=t "premium" ]
(7) "qos4": P=? [ !"minimum" U>=t "minimum" ]
(8) "repairs": R{"num_repairs"}=? [ C<=T ]
---------------------------------------------------------------------
Model checking: "premium_steady": S=? [ "premium" ]
Model constants: N=128
Warning: Switching to sparse engine and (backwards) Gauss Seidel (default for heuristic=speed).
Building model...
Model constants: N=128
Computing reachable states...
Reachability (BFS): 261 iterations in 0.32 seconds (average 0.001218, setup 0.00)
Time for model construction: 0.255 seconds.
Type: CTMC
States: 597012 (1 initial)
Transitions: 2908192
Rate matrix: 17481 nodes (134 terminal), 2908192 minterms, vars: 25r/25c
SCCs: 1, BSCCs: 1, non-BSCC states: 0
BSCC sizes: 1:597012
Computing steady state probabilities for BSCC 1
Computing probabilities...
Engine: Sparse
Building sparse matrix... [n=597012, nnz=2908192, compact] [11.7 MB]
Creating vector for diagonals... [dist=6345, compact] [1.2 MB]
Allocating iteration vector... [4.6 MB]
TOTAL: [17.4 MB]
Starting iterations...
Iteration 390: max relative diff=0.260804, 5.00 sec so far
Iteration 779: max relative diff=0.000917, 10.01 sec so far
Iteration 1170: max relative diff=0.000138, 15.02 sec so far
Iteration 1561: max relative diff=0.000081, 20.03 sec so far
Iteration 1952: max relative diff=0.000047, 25.03 sec so far
Iteration 2343: max relative diff=0.000028, 30.04 sec so far
Iteration 2734: max relative diff=0.000016, 35.05 sec so far
Iteration 3125: max relative diff=0.000009, 40.06 sec so far
Iteration 3515: max relative diff=0.000006, 45.07 sec so far
Iteration 3905: max relative diff=0.000003, 50.07 sec so far
Iteration 4296: max relative diff=0.000002, 55.08 sec so far
Iteration 4687: max relative diff=0.000001, 60.08 sec so far
Backwards Gauss-Seidel: 4769 iterations in 63.73 seconds (average 0.012819, setup 2.60)
BSCC 1 probability: 0.9979378926049853
All states are in BSCCs (so no reachability probabilities computed)
Value in the initial state: 0.9979378926049853
Time for model checking: 64.245 seconds.
Result: 0.9979378926049853 (value in the initial state)
Overall running time: 65.11 seconds.
---------------------------------------------------------------------
Note: There was 1 warning during computation.