floorNode.addChild(aDividedByB);
node.addChild(floorNode);
ASTNode greaterThan = new ASTNode(ASTNode.Type.RELATIONAL_GT);
greaterThan.addChild(aDividedByB.clone());
greaterThan.addChild(new ASTNode(0));
node.addChild(greaterThan);
ASTNode ceilNode = new ASTNode(ASTNode.Type.FUNCTION_CEILING);
ceilNode.addChild(aDividedByB.clone());