<s>
In	O
static	O
program	O
analysis	O
,	O
Soot	B-Language
is	O
a	O
bytecode	O
manipulation	O
and	O
optimization	O
framework	O
consisting	O
of	O
intermediate	B-Application
languages	I-Application
for	O
Java	B-Language
.	O
</s>
<s>
Soot	B-Language
provides	O
four	O
intermediate	B-Application
representations	I-Application
for	O
use	O
through	O
its	O
API	B-General_Concept
for	O
other	O
analysis	O
programs	O
to	O
access	O
and	O
build	O
upon	O
:	O
</s>
<s>
Jimple	O
:	O
a	O
simplified	O
version	O
of	O
Java	B-Language
source	I-Language
code	I-Language
that	O
has	O
a	O
maximum	O
of	O
three	B-Application
components	I-Application
per	O
statement	O
.	O
</s>
<s>
Grimp	O
:	O
an	O
aggregated	O
version	O
of	O
Jimple	O
suitable	O
for	O
decompilation	B-Application
and	O
code	O
inspection	O
.	O
</s>
<s>
The	O
current	O
Soot	B-Language
software	O
release	O
also	O
contains	O
detailed	O
program	O
analyses	O
that	O
can	O
be	O
used	O
out-of-the-box	O
,	O
such	O
as	O
context-sensitive	O
flow-insensitive	O
points-to	O
analysis	O
,	O
call	B-Application
graph	I-Application
analysis	O
and	O
domination	B-Application
analysis	O
(	O
answering	O
the	O
question	O
"	O
must	O
event	O
a	O
follow	O
event	O
b	O
?	O
"	O
)	O
.	O
</s>
<s>
It	O
also	O
has	O
a	O
decompiler	B-Application
called	O
dava	O
.	O
</s>
<s>
Soot	B-Language
is	O
free	B-Application
software	I-Application
available	O
under	O
the	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
(	O
LGPL	B-Application
)	O
.	O
</s>
<s>
In	O
2010	O
,	O
two	O
research	O
papers	O
on	O
Soot	B-Language
(	O
and	O
)	O
were	O
selected	O
as	O
IBM	O
CASCON	O
First	O
Decade	O
High	O
Impact	O
Papers	O
among	O
12	O
other	O
papers	O
from	O
the	O
425	O
entries	O
.	O
</s>
<s>
Jimple	O
is	O
an	O
intermediate	B-Application
representation	I-Application
of	O
a	O
Java	B-Language
program	O
designed	O
to	O
be	O
easier	O
to	O
optimize	O
than	O
Java	B-Language
bytecode	I-Language
.	O
</s>
<s>
It	O
is	O
typed	O
,	O
has	O
a	O
concrete	O
syntax	O
and	O
is	O
based	O
on	O
three-address	B-Application
code	I-Application
.	O
</s>
<s>
By	O
contrast	O
,	O
java	B-Language
bytecode	I-Language
includes	O
over	B-Language
200	I-Language
different	I-Language
operations	I-Language
.	O
</s>
<s>
Unlike	O
java	B-Language
bytecode	I-Language
,	O
in	O
Jimple	O
local	O
and	O
stack	O
variables	O
are	O
typed	O
and	O
Jimple	O
is	O
inherently	O
type	O
safe	O
.	O
</s>
<s>
Converting	O
to	O
Jimple	O
,	O
or	O
"	O
Jimplifying	O
"	O
(	O
after	O
"	O
simplifying	O
"	O
)	O
,	O
is	O
conversion	O
of	O
bytecode	O
to	O
three-address	B-Application
code	I-Application
.	O
</s>
<s>
The	O
above	O
translates	O
to	O
the	O
following	O
three-address	B-Application
code	I-Application
:	O
</s>
