error 0
 crypto_kem_dec returns nonzero
 ==16019== Memcheck, a memory error detector
 ==16019== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
 ==16019== Using Valgrind-3.15.0.GIT and LibVEX; rerun with -h for copyright info
 ==16019== Command: ./try
 ==16019==
 ==16019==
 ==16019== HEAP SUMMARY:
 ==16019==     in use at exit: 11,266,992 bytes in 12 blocks
 ==16019==   total heap usage: 24 allocs, 12 frees, 11,282,232 bytes allocated
 ==16019==
 ==16019== LEAK SUMMARY:
 ==16019==    definitely lost: 0 bytes in 0 blocks
 ==16019==    indirectly lost: 0 bytes in 0 blocks
 ==16019==      possibly lost: 11,266,560 bytes in 10 blocks
 ==16019==    still reachable: 432 bytes in 2 blocks
 ==16019==         suppressed: 0 bytes in 0 blocks
 ==16019== Rerun with --leak-check=full to see details of leaked memory
 ==16019==
 ==16019== For lists of detected and suppressed errors, rerun with: -s
 ==16019== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)