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noEarlyRent added

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Giulio De Pasquale 2017-01-22 16:26:59 +01:00
parent ad3a7231e5
commit cf64a73bbf
1 changed files with 6 additions and 0 deletions
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6
1.RASD/res/alloy/AlloyPowerEnjoy.als
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@ -213,6 +213,12 @@ fact noUserWithNotConfirmedBilling {
no u : User | u.billingInformation = NOTCONFIRMED
}
// Every rent starts after every reservation
fact noEarlyRent {
(all c : Car, res : Reservation, ren : Rent | c.status = INUSE and res.car = c and ren.car = c implies
ren.startTime >= res.endTime
)
}
// No Cities with the same ID
fact noDuplicatedCities {
no c1 , c2 : City | c1.id = c2.id and c1 != c2