cap symbol rank to 2 in tests

alib2integrationtest/test-src/tests/arbologyTest.cpp

@@ -58,7 +58,7 @@ static std::string qGen ( const EGenerateType & type, int height, int nodes, int
 	oss << " (bool) false"; /* alphRand */
 	if ( type == EGenerateType::NONLINEAR_PATTERN || type == EGenerateType::NONLINEAR_PATTERN_SINGLE_VAR )
 		oss << " (bool)" << ( type == EGenerateType::NONLINEAR_PATTERN_SINGLE_VAR );
-	oss << " (int)" << 5; /* rank */
+	oss << " (int)" << 2; /* rank */
 	oss << "> $" << output;
 	return oss.str ( );
 }