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来自「UML设计测试工具」· 代码 · 共 16 行

This directory contains two examples calling
procedure `testeZugaufbauUndWaggonreihung(Integer,Integer).

Invariant `Zug::Kette' will be evaluated to false if the links of association
`Reihung' form a cycle.

In the first example (run.cmd) another invariant `Waggon::KeineSchleife' is
loaded. The generator searches for a state, which satisfies `Zug::Kette' but
not `Waggon::KeineSchleife'. If a state exists, it is a counterexample showing
that `Zug::Kette' is too weak. Starting run.cmd results in a `no valid state
found' message, because `Zug::Kette' is correct.

The second example (run2.cmd) replaces `Zug::Kette' with `Zug::Kette_zuWeich',
which is too weak. Starting run2.cmd results in a counterexample showing that
`Zug::Kette_zuWeich' does not prevent cycles.