diff --git a/Sencha-lang/AST/ProgramNode.cpp b/Sencha-lang/AST/ProgramNode.cpp
index 43369f0..0a5240a 100644
--- a/Sencha-lang/AST/ProgramNode.cpp
+++ b/Sencha-lang/AST/ProgramNode.cpp
@@ -38,7 +38,10 @@ void ProgramNode::execute_last()
 
 SenchaObject ProgramNode::evaluate_last()
 {
-	return static_cast<ASTStatement * >(children[children.size() - 1])->evaluate();
+	std::cout << "Program evaluates last statement:";
+	SenchaObject result = (children[children.size() - 1])->evaluate();
+	std::cout << "It's value is: " << result.repr() << std::endl;
+	return result;
 }
 
 std::string ProgramNode::debug()
diff --git a/Sencha-lang/Parser.cpp b/Sencha-lang/Parser.cpp
index 8a367b2..962bcb8 100644
--- a/Sencha-lang/Parser.cpp
+++ b/Sencha-lang/Parser.cpp
@@ -18,13 +18,17 @@ Parser::~Parser()
 
 void Parser::erase_all()
 {
-	tree.delete_all_children();
+	/*tree.delete_all_children();
 	tree.root = new ProgramNode();
+	*/
+
 	error_message = "***ERRORS DURING PARSING***\n";
 
 	position_in_stream = 0;
 	in_statement = false;
-	program = static_cast<ProgramNode *>(tree.root);
+	this->token_stream = vector<Token>();
+	delete program;
+	program = new ProgramNode();
 
 
 }
diff --git a/Sencha-lang/Tests/TestParser.cpp b/Sencha-lang/Tests/TestParser.cpp
index a65bb71..649d576 100644
--- a/Sencha-lang/Tests/TestParser.cpp
+++ b/Sencha-lang/Tests/TestParser.cpp
@@ -23,14 +23,21 @@ std::string TestParser::test_parsing_and_evaluating_logical_expressions()
 	Lexer lexer;
 	Context context;
 	Parser parser(&context);
+	ASTInspector inspector;
 	for(auto logical_case : logical_inputs)
 	{
 		auto tokens = lexer.parse_line(logical_case.first);
 		parser.add_tokens(tokens);
-		auto value = parser.program->evaluate();
+		cout << parser.show_tokens();
+		parser.interpret();
+		inspector.visit(parser.program);
+		std::cout << inspector.get_report();
+		inspector.forget_everything();
+		SenchaObject value = parser.program->evaluate();
 		parser.erase_all();
 		muu_assert("Logical value isn't correct", value.truthy == logical_case.second);
 	}
+
 	return test_report;
 }