public Object leq(Object exp, int value) {
try {
return vc.leExpr((Expr) exp, vc.ratExpr(value));
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("## Error CVC3: Exception caught in CVC3 JNI: \n" + e);
}
}
public Object neq(Object exp, double value) {
try {
return vc.notExpr(vc.eqExpr((Expr) exp, vc.ratExpr(Double.toString(value), base)));
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("## Error CVC3: Exception caught in CVC3 JNI: \n" + e);
}
}
public Object neq(Object exp1, Object exp2) {
try {
return vc.notExpr(vc.eqExpr((Expr) exp1, (Expr) exp2));
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("## Error CVC3: Exception caught in CVC3 JNI: \n" + e);
}
}
public Object getExpr() {
// if (pb == null) return new
if (listConstraint.size() != 0) {
pb = vc.andExpr(listConstraint);
if (listExistentialIntegerVar != null) ;
pb = vc.existsExpr(listExistentialIntegerVar, pb);
}
return pb;
}
public Object makeIntVar(String name, int min, int max) {
try {
/*
* Type sType = vc.subrangeType(vc.ratExpr(min), vc.ratExpr(max)); return
* vc.varExpr(name, sType);
*/
Expr expr = vc.varExpr(name, vc.intType());
return expr;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("## Error CVC3: Exception caught in CVC3 JNI: \n" + e);
}
}
@Override
public boolean isSubsumedBy(NumericConstraint constraint) {
vc.push();
Expr cc = vc.impliesExpr(pb, (Expr) (constraint.getExpr()));
System.out.println("Implication: " + cc);
QueryResult sr = vc.query(cc);
System.out.println(sr.toString());
if (sr == QueryResult.VALID) {
vc.pop();
return true;
}
return false;
}
public Object makeRealVar(String name, double min, double max) {
// WARNING: need to downcast double to int - I don't see
// a way in CVC3 to create a sub-range for real types
// other choice is not to bound and use vc.realType() to
// create the expression
int minInt = (int) min;
int maxInt = (int) max;
try {
// Expr x = vc.varExpr(name, vc.realType());
/*
* Type sType = vc.subrangeType(vc.ratExpr(minInt), vc.ratExpr(maxInt));
* return vc.varExpr(name, sType);
*/
Expr expr = vc.varExpr(name, vc.intType());
return expr;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException("## Error CVC3: Exception caught in CVC3 JNI: \n" + e);
}
}
public static void initCVC3Constraint() {
flags = ValidityChecker.createFlags(null);
flags.setFlag("dagify-exprs", false);
vc = ValidityChecker.create(flags);
}