PRISM

Benchmark
Model:consensus v.1 (MDP)
Parameter(s)N = 4, K = 4
Property:disagree (prob-reach)
Invocation (default)
../fix-syntax ../prism -javamaxmem 11g -cuddmaxmem 4g -heuristic speed -e 1e-6 -maxiters 1000000 consensus.4.prism consensus.props --property disagree -const K=4
Execution
Walltime:5.425365447998047s
Return code:0
Relative Error:0.00010324246230812794
Log
PRISM
=====

Version: 4.5.dev
Date: Fri Feb 26 15:07:33 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.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" ]

---------------------------------------------------------------------

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 0.02 seconds (average 0.000123, setup 0.00)

Time for model construction: 0.046 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 0.10 seconds (average 0.000658, setup 0.00)

Prob1E: 2480 iterations in 1.89 seconds (average 0.000763, 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...

Iterative method: 6873 iterations in 2.78 seconds (average 0.000402, setup 0.02)

Value in the initial state: 0.15605695062063785

Time for model checking: 4.785 seconds.

Result: 0.15605695062063785 (value in the initial state)


Overall running time: 5.34 seconds.

---------------------------------------------------------------------

Note: There was 1 warning during computation.