The wasm-reduce tool encountered an abnormal timeout under the condition of "--command=./wasmer run test.wasm"

Phenomenon description

Hello, when I use the wasm-reduce tool to shorten the wasm program, there is an abnormal timeout. The command in --command exits normally when executed separately in the terminal, and the exit code is 0. But when using the wasm-reduce tool, the execution is as follows:

Commands from other runtime tools can be executed normally, as follows:

Steps to reproduce

// hello_world.c
#include <stdio.h>
int main() {
  printf("Hello, world!\n");
  return 0;
}

emcc hello_world.c -o hello_world.wasm -O2 -s WASM=1
/bin/wasm-reduce hello_world.wasm "--command=/path/to/wasmer run test.wasm" -t test.wasm -w work.wasm

Versions and Environment

binaryen is built from source.

• wasm-reduce: version 123 (version_123-229-g6f4e4f7d0)
• wasmer: 6.0.1
• emcc: 4.0.10 (b7dc6e5747465580df5984e723b9d1f10d8e804b)
• wabt: 1.0.27
• Host OS: Ubuntu 22.04.5 LTS x64
• CPU: 12th Gen Intel® Core™ i7-12700 × 20

Extra Info

If you need any other relevant information, please let me know and I will do my best to provide it. Looking forward to your reply! Thank you!

Start by reproducing the timeout with hello_world.c, test.wasm, work.wasm, and the reported wasm-reduce command, then compare it with the separately working runtime commands. Trace the wasm-reduce command-execution path and verify completion when using wasmer; done means the provided reduction no longer reports an abnormal timeout.