how to run angora-fuzzer?

[butterflyhack]

the run command:

./angora_fuzzer -i input -o output -t path/to/taint/program -- path/to/fast/program [argv]

the -t point taint mode, the -- point fast mode, they are opposite, why run together?

[butterflyhack]

I use the run command,:

butterfly@ubuntu:~/Desktop/ImageMagick$ /home/butterfly/Desktop/Angora/angora_fuzzer --input /home/butterfly/Desktop/in/ --output /home/butterfly/Desktop/output/ -- /home/butterfly/Desktop/imagemagick_install/bin/magick identify

and print error as below:

thread 'main' panicked at 'assertion failed: `(left != right)`
  left: `"-"`,
 right: `"-"`: You should set track target with -t PROM in LLVM mode!', fuzzer/src/command.rs:90:9
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:70
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:58
             at src/libstd/panicking.rs:200
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:215
   4: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:478
   5: std::panicking::continue_panic_fmt
             at src/libstd/panicking.rs:385
   6: std::panicking::begin_panic_fmt
             at src/libstd/panicking.rs:340
   7: angora::command::CommandOpt::new
   8: angora::fuzz_main::fuzz_main
   9: fuzzer::main
  10: std::rt::lang_start::{{closure}}
  11: std::panicking::try::do_call
             at src/libstd/rt.rs:49
             at src/libstd/panicking.rs:297
  12: __rust_maybe_catch_panic
             at src/libpanic_unwind/lib.rs:87
  13: std::rt::lang_start_internal
             at src/libstd/panicking.rs:276
             at src/libstd/panic.rs:388
             at src/libstd/rt.rs:48
  14: main
  15: __libc_start_main
  16: _start

[zhangysh1995]

@butterflyhack You need to run the -t, which is the binary for taint analysis.