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procedure evilrequires(x:int)
requires x>0;
{
var y : int;
if(x<0) {
y := 1;
} else {
y := 2;
}
}
procedure evilbranch(x:int)
{
var y : int;
if(x<0) {
y := 1;
} else {
y := 2;
}
assume y!=2;
assert x<0;
}
procedure evilloop(x:int)
{
var y : int;
y:=x;
while (y<100) {
y := y -1;
}
}
procedure evilpath(x:int)
{
var y : int;
y:=0;
if (x>10) {
y:=3;
} else {
assert y!=0;
}
}
procedure evilcondition(x:int)
{
var y : int;
y:=0;
if (x!=0) {
y:=3;
} else {
assert x!=0;
}
}
procedure evilensures(x:int) returns ($result: int)
ensures $result>0;
{
var y : int;
if(x<0) {
y := 1;
} else {
$result:=-1;
}
}
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