Table 3.

Model checking statistical analysis results for the phase variation case study

id	% true	#total STML		#true STML		#false STML		Exec. times
	PBLSTL	μ	σ	μ	σ	μ	σ	μ	σ
1	100	67.95	12.51	67.12	11.52	0.83	0.98	0:2.87	0:0.57
2	100	103.21	57.70	0.81	1.18	102.40	56.56	0:4.40	0:2.60
3	100	63.05	8.43	62.62	7.74	0.43	0.69	0:2.75	0:0.43
4	99.6	3.29	12.79	1.84	7.51	1.45	5.36	0:0.22	0:0.83
5	74.6	15.35	14.17	6.98	5.94	8.36	8.72	0:0.99	0:0.92
6	99.8	982.63	111.18	10.74	1.62	971.88	109.59	0:43.71	0:9.70
7	100	106.21	42.53	102.53	39.42	3.68	3.11	0:4.67	0:2.02
8	99.8	30.04	63.24	24.87	51.40	5.17	11.99	0:1.33	0:2.59

Entries in the “id” column represent the numeric identifiers placed at the right of each PBLSTL statement. The “% true PBLSTL” column describes what percentage of the 500 executions concluded that the PBLSTL statement is true. “#total STML” represents the total number of STML files evaluated for the PBLSTL statement; columns “#true STML” and “#false STML” represent the number of STML files for which the PBLSTL statement was evaluated true, respectively false.“ μ” and “ σ” represent the mean and standard deviation. “Exec. times” presents the average model checking execution time for each PBLSTL evaluation using the “minutes:seconds” format.