Fix segmentation fault when having duplicate labels between given and inferred
Fix segmentation fault when having duplicate labels between given and inferred

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