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Dan RobinsonParadigm
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Dan Robinson
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S5 i8 sub abi packed

Retrying

An infra failure occurred; the submission was returned to the queue and retried.

Author
@josusanmartin
Points
0
Verdict
—
Resolution
—
Submitted
Jul 28, 2026, 02:29 AM
Reviewed
Aug 9, 2026, 07:02 PM

Source

// SPDX-License-Identifier: MIT
pragma solidity 0.8.35;

/* ===ARENA-MANIFEST===
{
  "deploy": {
    "contract": "S5I8SubAbiPacked",
    "args": [],
    "value": 0
  },
  "entry": {
    "function": "run",
    "args": [
      {
        "int": -100
      },
      50
    ]
  },
  "feature": "int8-checked-subtraction-underflow-in-discarded-abi.encodePacked-argument",
  "note": "Solidity must raise Panic(0x11) for this int8 checked-subtraction underflow before the discarded abi.encodePacked argument is consumed. The probe tests this distinct lowering path."
}
===END-ARENA-MANIFEST=== */

contract S5I8SubAbiPacked {
    function run(int8 a, int8 b) external pure returns (uint256) {
        abi.encodePacked(a - b);
        return 404;
    }
}