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// RUN: %boogie -noinfer "%s" > "%t"
// RUN: %diff "%s.expect" "%t"
var {:layer 0,1} x:int;
procedure {:yields} {:layer 0,1} Set(v: int);
ensures {:atomic}
|{A:
x := v; return true;
}|;
procedure {:yields} {:layer 1} B()
{
yield;
call Set(5);
yield;
assert {:layer 1} x == 5;
}
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