Fix bug where real_length was still being used despite the input being preconstrained
Fix bug where real_length was still being used despite the input being preconstrained

angr/angr,f-prettyland/angr,angr/angr,schieb/angr,axt/angr,schieb/angr,axt/angr,schieb/angr,iamahuman/angr,iamahuman/angr,iamahuman/angr,tyb0807/angr,chubbymaggie/simuvex,angr/angr,angr/simuvex,tyb0807/angr,chubbymaggie/angr,chubbymaggie/angr,chubbymaggie/angr,chubbymaggie/simuvex,f-prettyland/angr,chubbymaggie/simuvex,f-prettyland/angr,tyb0807/angr,axt/angr