=== gdb backtrace: system() reached via hijacked cb (FULL ACE evidence) ===
Breakpoint 1 at 0x8092e0
Thread 1 "qemu-fuzz-x86_6" hit Breakpoint 1, __libc_system (line=line@entry=0x597c423b28b0 "echo edu-ace > /tmp/edu_ace_marker") at ../sysdeps/posix/system.c:202
warning: 202	../sysdeps/posix/system.c: No such file or directory
SYSTEM_HIT rdi=0x597c423b28b0
#0  __libc_system (line=line@entry=0x597c423b28b0 "echo edu-ace > /tmp/edu_ace_marker") at ../sysdeps/posix/system.c:202
#1  0x0000597c25972096 in timerlist_run_timers (timer_list=0x597c41902440) at ../util/qemu-timer.c:593
#2  0x0000597c25973025 in qemu_clock_run_timers (type=QEMU_CLOCK_VIRTUAL) at ../util/qemu-timer.c:607
#3  qemu_clock_advance_virtual_time (dest=1000000000) at ../util/qemu-timer.c:713