Thread 26 "philo" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff9d7fa700 (LWP 19577)]
__GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:67
67	../nptl/pthread_mutex_lock.c: Aucun fichier ou dossier de ce type.
(gdb) bt
#0  __GI___pthread_mutex_lock (mutex=0x0) at ../nptl/pthread_mutex_lock.c:67
#1  0x00007ffff7bcfc93 in ?? () from /home/samuel/PSU_2017/PSU_philosopher_2017/lib/libriceferee.so
#2  0x00005555555554e1 in first_case_eat ()
#3  0x0000555555555725 in eat ()
#4  0x0000555555555903 in take_decision ()
#5  0x000055555555513d in philosophe_does ()
#6  0x00007ffff79b17fc in start_thread (arg=0x7fff9d7fa700) at pthread_create.c:465
#7  0x00007ffff76deb5f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95