Ampersand
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product operator # malfunctions
What happened
I am running the following script:
CONTEXT Script
POPULATION X CONTAINS ["aap", "noot", "mies"]
POPULATION A CONTAINS ["1", "2", "3"]
RELATION r[X*A]
POPULATION r CONTAINS
[ ("aap", "1")
, ("noot", "1")
]
RULE rule1 : r#r~ |- r;V;r~
RULE rule2 : r;V;r~ |- r#r~
ENDCONTEXT
I got the following result:
% ampersand check Issue1310.adl
/Users/sjo00577/git/ampersand-models/ArchiChecker/ResearchData/Issue1310.adl:13:1 error:
There are 5 violations of RULE "rule1":
("aap", "mies")
("mies", "aap")
("mies", "mies")
("mies", "noot")
("noot", "mies")
ExitFailure 10
(Note: the population of r;V;r~
is [("aap", "aap"), ("aap", "noot"), ("noot", "aap"), ("noot", "noot")]
)
What I expected
Since the operator #
is defined by r#s = r;V;s
, both rules should never be violated.
Version of ampersand that was used
I used both the RAP tool (Ampersand-v4.3.0) and Ampersand-v4.6.3