Segfaulting Pocketsphinx Code

ps_test.c

#include <pocketsphinx.h>

int main(int argc, char *argv[])
{
        ps_decoder_t *ps;
        cmd_ln_t *config;
        config = cmd_ln_init(NULL, ps_args(), TRUE,
                             NULL);
        ps = ps_init(config);
        ps_update_fsgset (ps);
        ps_update_fsgset (ps);
        return 0;
}

ps_test2.c

#include <pocketsphinx.h>

int main(int argc, char *argv[])
{
        ps_decoder_t *ps;
        cmd_ln_t *config;
        ngram_model_t *model;
        config = cmd_ln_init(NULL, ps_args(), TRUE,
                             "-hmm", "/usr/share/pocketsphinx/model/hmm/wsj1/",
                             "-dict", "/usr/share/pocketsphinx/model/lm/wsj/wlist5o.dic",
                             "-lm", "/usr/share/pocketsphinx/model/lm/wsj/wlist5o.3e-7.vp.tg.lm.DMP",
                             NULL);
        ps = ps_init(config);
        model = ps_update_lmset (ps, NULL);
        return 0;
}