Added support for generating a library of real-life truth-tables.

src/base/io/io.c

@@ -929,8 +929,6 @@ int IoCommandReadTruth( Abc_Frame_t * pAbc, int argc, char ** argv )
         goto usage;
     }
 
-    c = strlen(argv[globalUtilOptind]);
-
     // convert truth table to SOP
     if ( fHex )
         pSopCover = Abc_SopFromTruthHex(argv[globalUtilOptind]);