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LARA
inox
Commits
9c076b11
Commit
9c076b11
authored
14 years ago
by
Philippe Suter
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1 changed file
src/purescala/Z3Solver.scala
+31
-27
31 additions, 27 deletions
src/purescala/Z3Solver.scala
with
31 additions
and
27 deletions
src/purescala/Z3Solver.scala
+
31
−
27
View file @
9c076b11
...
...
@@ -14,6 +14,9 @@ class Z3Solver(reporter: Reporter) extends Solver(reporter) {
// this is fixed
private
val
z3cfg
=
new
Z3Config
()
z3cfg
.
setParamValue
(
"MODEL"
,
"true"
)
z3cfg
.
setParamValue
(
"SOFT_TIMEOUT"
,
"5000"
)
// this one doesn't work apparently
z3cfg
.
setParamValue
(
"TYPE_CHECK"
,
"true"
)
z3cfg
.
setParamValue
(
"WELL_SORTED_CHECK"
,
"true"
)
Z3Global
.
toggleWarningMessages
(
true
)
// we restart Z3 for each new program
...
...
@@ -151,6 +154,7 @@ class Z3Solver(reporter: Reporter) extends Solver(reporter) {
val
fOfT
:
Expr
=
FunctionInvocation
(
funDef
,
List
(
CaseClass
(
ccd
,
subids
.
map
(
Variable
(
_
)))))
val
toConvert
=
Equals
(
fOfT
,
rhs
)
//println(toConvert)
val
initialMap
:
Map
[
String
,
Z3AST
]
=
Map
((
subids
.
map
(
_
.
uniqueName
)
zip
boundVars
)
:_
*
)
+
(
pid
.
uniqueName
->
matcher
)
+
(
funDef
.
args
(
0
).
id
.
uniqueName
->
matcher
)
toZ3Formula
(
z3
,
toConvert
,
initialMap
)
match
{
case
Some
(
axiomTree
)
=>
{
...
...
@@ -159,7 +163,7 @@ class Z3Solver(reporter: Reporter) extends Solver(reporter) {
}
else
{
z3
.
mkForAll
(
0
,
List
(
pattern
),
nameTypePairs
,
axiomTree
)
}
//
z3.printAST(toAssert)
//z3.printAST(toAssert)
z3
.
assertCnstr
(
toAssert
)
}
case
None
=>
{
...
...
@@ -169,32 +173,32 @@ class Z3Solver(reporter: Reporter) extends Solver(reporter) {
}
})
case
_
=>
{
// Newly introduced variables should in fact
// probably also be universally quantified.
val
argSorts
:
Seq
[
Z3Sort
]
=
funDef
.
args
.
map
(
vd
=>
typeToSort
(
vd
.
getType
))
val
boundVars
=
argSorts
.
zipWithIndex
.
map
(
p
=>
z3
.
mkBound
(
p
.
_2
,
p
.
_1
))
val
pattern
:
Z3Pattern
=
z3
.
mkPattern
(
functionDefToDef
(
funDef
)(
boundVars
:
_
*
))
val
nameTypePairs
=
argSorts
.
map
(
s
=>
(
z3
.
mkIntSymbol
(
nextIntForSymbol
()),
s
))
val
fOfX
:
Expr
=
FunctionInvocation
(
funDef
,
funDef
.
args
.
map
(
_
.
toVariable
))
val
toConvert
:
Expr
=
if
(
funDef
.
hasPrecondition
)
{
Implies
(
funDef
.
precondition
.
get
,
Equals
(
fOfX
,
funDef
.
body
.
get
))
}
else
{
Equals
(
fOfX
,
funDef
.
body
.
get
)
}
val
finalToConvert
=
Analysis
.
rewriteSimplePatternMatching
(
toConvert
)
val
initialMap
:
Map
[
String
,
Z3AST
]
=
Map
((
funDef
.
args
.
map
(
_
.
id
.
uniqueName
)
zip
boundVars
)
:_
*
)
toZ3Formula
(
z3
,
finalToConvert
,
initialMap
)
match
{
case
Some
(
axiomTree
)
=>
{
val
quantifiedAxiom
=
z3
.
mkForAll
(
0
,
List
(
pattern
),
nameTypePairs
,
axiomTree
)
//z3.printAST(quantifiedAxiom)
z3
.
assertCnstr
(
quantifiedAxiom
)
}
case
None
=>
{
reporter
.
warning
(
"Could not generate forall axiom for "
+
funDef
.
id
.
name
)
reporter
.
warning
(
toConvert
)
reporter
.
warning
(
finalToConvert
)
}
}
//
//
Newly introduced variables should in fact
//
//
probably also be universally quantified.
//
val argSorts: Seq[Z3Sort] = funDef.args.map(vd => typeToSort(vd.getType))
//
val boundVars = argSorts.zipWithIndex.map(p => z3.mkBound(p._2, p._1))
//
val pattern: Z3Pattern = z3.mkPattern(functionDefToDef(funDef)(boundVars: _*))
//
val nameTypePairs = argSorts.map(s => (z3.mkIntSymbol(nextIntForSymbol()), s))
//
val fOfX: Expr = FunctionInvocation(funDef, funDef.args.map(_.toVariable))
//
val toConvert: Expr = if(funDef.hasPrecondition) {
//
Implies(funDef.precondition.get, Equals(fOfX, funDef.body.get))
//
} else {
//
Equals(fOfX, funDef.body.get)
//
}
//
val finalToConvert = Analysis.rewriteSimplePatternMatching(toConvert)
//
val initialMap: Map[String,Z3AST] = Map((funDef.args.map(_.id.uniqueName) zip boundVars):_*)
//
toZ3Formula(z3, finalToConvert, initialMap) match {
//
case Some(axiomTree) => {
//
val quantifiedAxiom = z3.mkForAll(0, List(pattern), nameTypePairs, axiomTree)
//
//z3.printAST(quantifiedAxiom)
//
z3.assertCnstr(quantifiedAxiom)
//
}
//
case None => {
//
reporter.warning("Could not generate forall axiom for " + funDef.id.name)
//
reporter.warning(toConvert)
//
reporter.warning(finalToConvert)
//
}
//
}
}
}
}
...
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