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class Cell {
var value: int;
predicate p { acc(value) }
method test()
requires p
{
var tmp: int := unfolding p in value;
var tmp2: int := unfolding p in value;
call void()
assert tmp == unfolding p in value // ERROR: should fail
}
method test2()
requires p
ensures p
{
var tmp: int := unfolding p in value;
var tmp2: int := unfolding p in value;
call v()
assert tmp == unfolding p in value
}
method v() requires true {}
method void()
requires p
ensures p
{}
}
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