When running ``` make clean make -j CLANG=3 ./IVAS_cod -STEREO -dtx 24400 16 ./scripts/testv/stvST16nwav bit ./IVAS_dec stereo 32 bit out.wav ``` ,UBSAN reports (among others): ``` lib_dec/ivas_stereo_cng_dec.c:380:29: runtime error: division by zero SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior lib_dec/ivas_stereo_cng_dec.c:380:29 in lib_dec/ivas_stereo_cng_dec.c:461:113: runtime error: division by zero SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior lib_dec/ivas_stereo_cng_dec.c:461:113 in ``` This happens in **frame 114**. Running in the debugger and breaking at `ivas_stereo_cng_dec.c:378`, one can see that `shb_shape` is completely zero and thus the multiplication in line 380 has a zero denominator. The other division-by-zero error is a direct follow up of the first, as `enr` goes to Inf due to the division by zero. <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary. -->