./fix-syntax ./prism --javamaxmem 11g cluster.prism cluster.props --property premium_steady -const N=128,T=2000,t=20 -sparse -gs
Select best engine and numerical method
PRISM
=====
Version: 4.4.dev
Date: Mon Dec 10 20:48:16 CET 2018
Hostname: qcomp2019
Memory limits: cudd=1g, java(heap)=1g
Command line: prism --javamaxmem 11g cluster.prism cluster.props --property premium_steady -const 'N=128,T=2000,t=20' -sparse -gs
Parsing model file "cluster.prism"...
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 ]
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
---------------------------------------------------------------------
Model checking: "premium_steady": S=? [ "premium" ]
Model constants: N=128
Building model...
Model constants: N=128
Computing reachable states...
Reachability (BFS): 261 iterations in 0.13 seconds (average 0.000498, setup 0.00)
Time for model construction: 0.22 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...
Gauss-Seidel: 343 iterations in 7.01 seconds (average 0.012962, setup 2.57)
BSCC 1 probability: 0.997937891093495
All states are in BSCCs (so no reachability probabilities computed)
Value in the initial state: 0.997937891093495
Time for model checking: 7.396 seconds.
Result: 0.997937891093495 (value in the initial state)
Overall running time: 8.173 seconds.