public static String translateImplication(
SymbolicConstraint leftHandSide, SymbolicConstraint rightHandSide) {
KILtoSMTLib leftTransformer = new KILtoSMTLib(true);
KILtoSMTLib rightTransformer = new KILtoSMTLib(false);
String leftExpression = ((SMTLibTerm) leftHandSide.accept(leftTransformer)).expression();
String rightExpression = ((SMTLibTerm) rightHandSide.accept(rightTransformer)).expression();
StringBuilder sb = new StringBuilder();
sb.append(
getSortAndFunctionDeclarations(
leftHandSide.termContext().definition(),
Sets.union(leftTransformer.variables(), rightTransformer.variables())));
sb.append(getAxioms(leftHandSide.termContext().definition()));
sb.append(getConstantDeclarations(leftTransformer.variables()));
sb.append("(assert (and ");
sb.append(leftExpression);
sb.append(" (not ");
Set<Variable> rightHandSideOnlyVariables =
Sets.difference(rightTransformer.variables(), leftTransformer.variables());
if (!rightHandSideOnlyVariables.isEmpty()) {
sb.append("(exists (");
sb.append(getQuantifiedVariables(rightHandSideOnlyVariables));
sb.append(") ");
}
sb.append(rightExpression);
if (!rightHandSideOnlyVariables.isEmpty()) {
sb.append(")");
}
sb.append(")))");
return sb.toString();
}
public static String translateConstraint(SymbolicConstraint constraint) {
KILtoSMTLib transformer = new KILtoSMTLib(true);
String expression = ((SMTLibTerm) constraint.accept(transformer)).expression();
return getSortAndFunctionDeclarations(
constraint.termContext().definition(), transformer.variables())
+ getAxioms(constraint.termContext().definition())
+ getConstantDeclarations(transformer.variables())
+ "(assert "
+ expression
+ ")";
}