Fix segmentation fault in GetFactors function
Fix segmentation fault in GetFactors function

lazyparser/Nice2Predict,chubbymaggie/Nice2Predict,urialon/Nice2Predict,urialon/Nice2Predict,chubbymaggie/Nice2Predict,lazyparser/Nice2Predict,lazyparser/Nice2Predict,chubbymaggie/Nice2Predict,eth-srl/Nice2Predict,chubbymaggie/Nice2Predict,lazyparser/Nice2Predict,urialon/Nice2Predict,eth-srl/Nice2Predict,urialon/Nice2Predict,lazyparser/Nice2Predict,chubbymaggie/Nice2Predict,eth-srl/Nice2Predict,eth-srl/Nice2Predict,urialon/Nice2Predict,eth-srl/Nice2Predict