Crash in contactTestBetween

I want to test the SCNNode whether overlap to other exist SCNNode. Therefore, I try to use

contactTestBetween

var node: SCNNode!
var node2: SCNNode!
@objc func handleTap(_ gesture: UITapGestureRecognizer) {


    if(node == nil){
        let center = gesture.location(in: gesture.view)
        let boxCenter = CGPoint(x: center.x, y: center.y)


        let arHitTestResult: [ARHitTestResult] = drawer.cameraView.hitTest(boxCenter, types: [.estimatedHorizontalPlane, .featurePoint])
        if let result = arHitTestResult.first{
            let transform: matrix_float4x4 = result.worldTransform


            node = SCNNode()
            let box = SCNBox(width: 0.3, height: 0.3, length: 0.3, chamferRadius: 0)
            box.firstMaterial?.diffuse.contents = TLDarknet.labels_tl_color[0]
            node.geometry = box
            node.position = SCNVector3Make(transform.columns.3.x, transform.columns.3.y, transform.columns.3.z)
            node.physicsBody = SCNPhysicsBody(type: .kinematic, shape: SCNPhysicsShape(geometry: box, options: nil))
            node.physicsBody!.categoryBitMask = 2
            node.physicsBody!.contactTestBitMask = 2
            node.physicsBody!.collisionBitMask = 2
            self.cameraView.scene.rootNode.addChildNode(node)




            let pointer = SCNScene(named: "art.scnassets/pointer.dae")
            let t1 = pointer!.rootNode.childNodes[2]
            t1.scale = SCNVector3(0.3, 0.3, 0.3)


            node2 = SCNNode()
            let box2 = SCNBox(width: CGFloat(t1.boundingBox.max.x - t1.boundingBox.min.x), height: CGFloat(t1.boundingBox.max.y - t1.boundingBox.min.y), length: CGFloat(t1.boundingBox.max.z - t1.boundingBox.min.z), chamferRadius: 0)
            box2.firstMaterial?.diffuse.contents = TLDarknet.labels_tl_color[1]
            node2.addChildNode(t1)
            node2.position = SCNVector3Make(transform.columns.3.x, transform.columns.3.y, transform.columns.3.z)
            node2.physicsBody = SCNPhysicsBody(type: .kinematic, shape: SCNPhysicsShape(geometry: box2, options: nil))
            node2.physicsBody!.categoryBitMask = 2
            node2.physicsBody!.contactTestBitMask = 2
            node2.physicsBody!.collisionBitMask = 2
            self.cameraView.scene.rootNode.addChildNode(node2)
        }
    }else{
        let center = gesture.location(in: gesture.view)
        let boxCenter = CGPoint(x: center.x, y: center.y)


        let arHitTestResult: [ARHitTestResult] = drawer.cameraView.hitTest(boxCenter, types: [.estimatedHorizontalPlane, .featurePoint])
        if let result = arHitTestResult.first{
            let transform: matrix_float4x4 = result.worldTransform


            let pointer = SCNScene(named: "art.scnassets/pointer.dae")
            let t1 = pointer!.rootNode.childNodes[2]
            t1.scale = SCNVector3(0.3, 0.3, 0.3)


            node2 = SCNNode()
            let box2 = SCNBox(width: CGFloat(t1.boundingBox.max.x - t1.boundingBox.min.x), height: CGFloat(t1.boundingBox.max.y - t1.boundingBox.min.y), length: CGFloat(t1.boundingBox.max.z - t1.boundingBox.min.z), chamferRadius: 0)
            box2.firstMaterial?.diffuse.contents = TLDarknet.labels_tl_color[1]
            node2.addChildNode(t1)
            node2.position = SCNVector3Make(transform.columns.3.x, transform.columns.3.y, transform.columns.3.z)
            node2.physicsBody = SCNPhysicsBody(type: .kinematic, shape: SCNPhysicsShape(geometry: box2, options: nil))
            node2.physicsBody!.categoryBitMask = 2
            node2.physicsBody!.contactTestBitMask = 2
            node2.physicsBody!.collisionBitMask = 2
            self.cameraView.scene.rootNode.addChildNode(node2)
        }


        print("ok? ", self.cameraView.scene.physicsWorld.contactTestBetween(node.physicsBody!, node2.physicsBody!, options: nil))
    }
}