<s>
A	O
verification	B-Application
condition	I-Application
generator	I-Application
is	O
a	O
common	O
sub-component	O
of	O
an	O
automated	O
program	O
verifier	O
that	O
synthesizes	O
formal	O
verification	B-Application
conditions	I-Application
by	O
analyzing	O
a	O
program	O
's	O
source	O
code	O
using	O
a	O
method	O
based	O
upon	O
Hoare	O
logic	O
.	O
</s>
<s>
VC	O
generators	O
may	O
require	O
that	O
the	O
source	O
code	O
contains	O
logical	O
annotations	O
provided	O
by	O
the	O
programmer	O
or	O
the	O
compiler	O
such	O
as	O
pre/post	O
-conditions	O
and	O
loop	O
invariants	O
(	O
a	O
form	O
of	O
proof-carrying	B-Application
code	I-Application
)	O
.	O
</s>
<s>
VC	O
generators	O
are	O
often	O
coupled	O
with	O
SMT	B-Application
solvers	I-Application
in	O
the	O
backend	O
of	O
a	O
program	O
verifier	O
.	O
</s>
<s>
After	O
a	O
verification	B-Application
condition	I-Application
generator	I-Application
has	O
created	O
the	O
verification	B-Application
conditions	I-Application
they	O
are	O
passed	O
to	O
an	O
automated	B-Application
theorem	I-Application
prover	I-Application
,	O
which	O
can	O
then	O
formally	O
prove	O
the	O
correctness	O
of	O
the	O
code	O
.	O
</s>
<s>
Methods	O
have	O
been	O
proposed	O
to	O
use	O
the	O
operational	O
semantics	O
of	O
machine	O
languages	O
to	O
automatically	O
generate	O
verification	B-Application
condition	I-Application
generators	I-Application
.	O
</s>
