prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  [False-Positive]:`msg.value` in a loop when `msg.value` is not transferred
  ### Describe the issue:
  
  In the following code snippet, Slither detects the following:
  
  <img width="1309" alt="image" src="https://github.com/crytic/slither/assets/31145285/eacf2441-3e2d-464a-97c3-635498e43120">
  
  This seems invalid as `msg.value` here is just checked as a conditional to ensure no value is sent to this function. In any case, no logic inside this function (including inside the internal `_transfer` function) forwards `msg.value`.
  
  ### Code example to reproduce the issue:
  
  ```solidity
  
      modifier noNativeTokens() {
          require(msg.value == 0, "Not aimed to receive native tokens");
          _;
      }
      
     function executeRelayCallBatch(
          bytes[] calldata signatures,
          uint256[] calldata nonces,
          uint256[] calldata validityTimestamps,
          uint256[] calldata values,
          bytes[] calldata payloads
      ) public payable noNativeTokens returns (bytes[] memory) {
          if (
              signatures.length != nonces.length ||
              nonces.length != validityTimestamps.length ||
              validityTimestamps.length != values.length ||
              values.length != payloads.length
          ) {
              revert("Batch ExecuteRelayCall Params Length Mismatch");
          }
  
          bytes[] memory castedVotes = new bytes[](payloads.length);
  
          for (uint256 ii; ii < payloads.length; ++ii) {
              require(values[ii] == 0, "Batch entry cannot contain value");
  
              // cast each votes one by one
              castedVotes[ii] = executeRelayCall(
                  signatures[ii],
                  nonces[ii],
                  validityTimestamps[ii],
                  payloads[ii]
              );
          }
  
          return castedVotes;
      }
  ```
  
  ### Version:
  
  0.10.0
  
  ### Relevant log output:
  
  _No response_
  
  </issue>
  <code>
  [start of slither/detectors/statements/msg_value_in_loop.py]
  1 from typing import List, Optional
  2 from slither.core.cfg.node import NodeType, Node
  3 from slither.detectors.abstract_detector import (
  4     AbstractDetector,
  5     DetectorClassification,
  6     DETECTOR_INFO,
  7 )
  8 from slither.slithir.operations import InternalCall
  9 from slither.core.declarations import SolidityVariableComposed, Contract
  10 from slither.utils.output import Output
  11 
  12 
  13 def detect_msg_value_in_loop(contract: Contract) -> List[Node]:
  14     results: List[Node] = []
  15     for f in contract.functions_entry_points:
  16         if f.is_implemented and f.payable:
  17             msg_value_in_loop(f.entry_point, 0, [], results)
  18     return results
  19 
  20 
  21 def msg_value_in_loop(
  22     node: Optional[Node], in_loop_counter: int, visited: List[Node], results: List[Node]
  23 ) -> None:
  24 
  25     if node is None:
  26         return
  27 
  28     if node in visited:
  29         return
  30     # shared visited
  31     visited.append(node)
  32 
  33     if node.type == NodeType.STARTLOOP:
  34         in_loop_counter += 1
  35     elif node.type == NodeType.ENDLOOP:
  36         in_loop_counter -= 1
  37 
  38     for ir in node.all_slithir_operations():
  39         if in_loop_counter > 0 and SolidityVariableComposed("msg.value") in ir.read:
  40             results.append(ir.node)
  41         if isinstance(ir, (InternalCall)):
  42             msg_value_in_loop(ir.function.entry_point, in_loop_counter, visited, results)
  43 
  44     for son in node.sons:
  45         msg_value_in_loop(son, in_loop_counter, visited, results)
  46 
  47 
  48 class MsgValueInLoop(AbstractDetector):
  49     """
  50     Detect the use of msg.value inside a loop
  51     """
  52 
  53     ARGUMENT = "msg-value-loop"
  54     HELP = "msg.value inside a loop"
  55     IMPACT = DetectorClassification.HIGH
  56     CONFIDENCE = DetectorClassification.MEDIUM
  57 
  58     WIKI = "https://github.com/crytic/slither/wiki/Detector-Documentation/#msgvalue-inside-a-loop"
  59 
  60     WIKI_TITLE = "`msg.value` inside a loop"
  61     WIKI_DESCRIPTION = "Detect the use of `msg.value` inside a loop."
  62 
  63     # region wiki_exploit_scenario
  64     WIKI_EXPLOIT_SCENARIO = """
  65 ```solidity
  66 contract MsgValueInLoop{
  67 
  68     mapping (address => uint256) balances;
  69 
  70     function bad(address[] memory receivers) public payable {
  71         for (uint256 i=0; i < receivers.length; i++) {
  72             balances[receivers[i]] += msg.value;
  73         }
  74     }
  75 
  76 }
  77 ```
  78 """
  79     # endregion wiki_exploit_scenario
  80 
  81     WIKI_RECOMMENDATION = """
  82 Provide an explicit array of amounts alongside the receivers array, and check that the sum of all amounts matches `msg.value`.
  83 """
  84 
  85     def _detect(self) -> List[Output]:
  86         """"""
  87         results: List[Output] = []
  88         for c in self.compilation_unit.contracts_derived:
  89             values = detect_msg_value_in_loop(c)
  90             for node in values:
  91                 func = node.function
  92 
  93                 info: DETECTOR_INFO = [func, " use msg.value in a loop: ", node, "\n"]
  94                 res = self.generate_result(info)
  95                 results.append(res)
  96 
  97         return results
  98
  [end of slither/detectors/statements/msg_value_in_loop.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/slither/detectors/statements/msg_value_in_loop.py b/slither/detectors/statements/msg_value_in_loop.py
  --- a/slither/detectors/statements/msg_value_in_loop.py
  +++ b/slither/detectors/statements/msg_value_in_loop.py
  @@ -8,6 +8,9 @@
   from slither.slithir.operations import InternalCall
   from slither.core.declarations import SolidityVariableComposed, Contract
   from slither.utils.output import Output
  +from slither.slithir.variables.constant import Constant
  +from slither.core.variables import Variable
  +from slither.core.expressions.literal import Literal
   
   
   def detect_msg_value_in_loop(contract: Contract) -> List[Node]:
  @@ -37,6 +40,21 @@
   
       for ir in node.all_slithir_operations():
           if in_loop_counter > 0 and SolidityVariableComposed("msg.value") in ir.read:
  +            # If we find a conditional expression with msg.value and is compared to 0 we don't report it
  +            if ir.node.is_conditional() and SolidityVariableComposed("msg.value") in ir.read:
  +                compared_to = (
  +                    ir.read[1]
  +                    if ir.read[0] == SolidityVariableComposed("msg.value")
  +                    else ir.read[0]
  +                )
  +                if (
  +                    isinstance(compared_to, Constant)
  +                    and compared_to.value == 0
  +                    or isinstance(compared_to, Variable)
  +                    and isinstance(compared_to.expression, Literal)
  +                    and str(compared_to.expression.value) == "0"
  +                ):
  +                    continue
               results.append(ir.node)
           if isinstance(ir, (InternalCall)):
               msg_value_in_loop(ir.function.entry_point, in_loop_counter, visited, results)
  
verification_info: {"golden_diff": "diff --git a/slither/detectors/statements/msg_value_in_loop.py b/slither/detectors/statements/msg_value_in_loop.py\n--- a/slither/detectors/statements/msg_value_in_loop.py\n+++ b/slither/detectors/statements/msg_value_in_loop.py\n@@ -8,6 +8,9 @@\n from slither.slithir.operations import InternalCall\n from slither.core.declarations import SolidityVariableComposed, Contract\n from slither.utils.output import Output\n+from slither.slithir.variables.constant import Constant\n+from slither.core.variables import Variable\n+from slither.core.expressions.literal import Literal\n \n \n def detect_msg_value_in_loop(contract: Contract) -> List[Node]:\n@@ -37,6 +40,21 @@\n \n     for ir in node.all_slithir_operations():\n         if in_loop_counter > 0 and SolidityVariableComposed(\"msg.value\") in ir.read:\n+            # If we find a conditional expression with msg.value and is compared to 0 we don't report it\n+            if ir.node.is_conditional() and SolidityVariableComposed(\"msg.value\") in ir.read:\n+                compared_to = (\n+                    ir.read[1]\n+                    if ir.read[0] == SolidityVariableComposed(\"msg.value\")\n+                    else ir.read[0]\n+                )\n+                if (\n+                    isinstance(compared_to, Constant)\n+                    and compared_to.value == 0\n+                    or isinstance(compared_to, Variable)\n+                    and isinstance(compared_to.expression, Literal)\n+                    and str(compared_to.expression.value) == \"0\"\n+                ):\n+                    continue\n             results.append(ir.node)\n         if isinstance(ir, (InternalCall)):\n             msg_value_in_loop(ir.function.entry_point, in_loop_counter, visited, results)\n", "issue": "[False-Positive]:`msg.value` in a loop when `msg.value` is not transferred\n### Describe the issue:\n\nIn the following code snippet, Slither detects the following:\r\n\r\n<img width=\"1309\" alt=\"image\" src=\"https://github.com/crytic/slither/assets/31145285/eacf2441-3e2d-464a-97c3-635498e43120\">\r\n\r\nThis seems invalid as `msg.value` here is just checked as a conditional to ensure no value is sent to this function. In any case, no logic inside this function (including inside the internal `_transfer` function) forwards `msg.value`.\n\n### Code example to reproduce the issue:\n\n```solidity\r\n\r\n    modifier noNativeTokens() {\r\n        require(msg.value == 0, \"Not aimed to receive native tokens\");\r\n        _;\r\n    }\r\n    \r\n   function executeRelayCallBatch(\r\n        bytes[] calldata signatures,\r\n        uint256[] calldata nonces,\r\n        uint256[] calldata validityTimestamps,\r\n        uint256[] calldata values,\r\n        bytes[] calldata payloads\r\n    ) public payable noNativeTokens returns (bytes[] memory) {\r\n        if (\r\n            signatures.length != nonces.length ||\r\n            nonces.length != validityTimestamps.length ||\r\n            validityTimestamps.length != values.length ||\r\n            values.length != payloads.length\r\n        ) {\r\n            revert(\"Batch ExecuteRelayCall Params Length Mismatch\");\r\n        }\r\n\r\n        bytes[] memory castedVotes = new bytes[](payloads.length);\r\n\r\n        for (uint256 ii; ii < payloads.length; ++ii) {\r\n            require(values[ii] == 0, \"Batch entry cannot contain value\");\r\n\r\n            // cast each votes one by one\r\n            castedVotes[ii] = executeRelayCall(\r\n                signatures[ii],\r\n                nonces[ii],\r\n                validityTimestamps[ii],\r\n                payloads[ii]\r\n            );\r\n        }\r\n\r\n        return castedVotes;\r\n    }\r\n```\n\n### Version:\n\n0.10.0\n\n### Relevant log output:\n\n_No response_\n", "before_files": [{"content": "from typing import List, Optional\nfrom slither.core.cfg.node import NodeType, Node\nfrom slither.detectors.abstract_detector import (\n    AbstractDetector,\n    DetectorClassification,\n    DETECTOR_INFO,\n)\nfrom slither.slithir.operations import InternalCall\nfrom slither.core.declarations import SolidityVariableComposed, Contract\nfrom slither.utils.output import Output\n\n\ndef detect_msg_value_in_loop(contract: Contract) -> List[Node]:\n    results: List[Node] = []\n    for f in contract.functions_entry_points:\n        if f.is_implemented and f.payable:\n            msg_value_in_loop(f.entry_point, 0, [], results)\n    return results\n\n\ndef msg_value_in_loop(\n    node: Optional[Node], in_loop_counter: int, visited: List[Node], results: List[Node]\n) -> None:\n\n    if node is None:\n        return\n\n    if node in visited:\n        return\n    # shared visited\n    visited.append(node)\n\n    if node.type == NodeType.STARTLOOP:\n        in_loop_counter += 1\n    elif node.type == NodeType.ENDLOOP:\n        in_loop_counter -= 1\n\n    for ir in node.all_slithir_operations():\n        if in_loop_counter > 0 and SolidityVariableComposed(\"msg.value\") in ir.read:\n            results.append(ir.node)\n        if isinstance(ir, (InternalCall)):\n            msg_value_in_loop(ir.function.entry_point, in_loop_counter, visited, results)\n\n    for son in node.sons:\n        msg_value_in_loop(son, in_loop_counter, visited, results)\n\n\nclass MsgValueInLoop(AbstractDetector):\n    \"\"\"\n    Detect the use of msg.value inside a loop\n    \"\"\"\n\n    ARGUMENT = \"msg-value-loop\"\n    HELP = \"msg.value inside a loop\"\n    IMPACT = DetectorClassification.HIGH\n    CONFIDENCE = DetectorClassification.MEDIUM\n\n    WIKI = \"https://github.com/crytic/slither/wiki/Detector-Documentation/#msgvalue-inside-a-loop\"\n\n    WIKI_TITLE = \"`msg.value` inside a loop\"\n    WIKI_DESCRIPTION = \"Detect the use of `msg.value` inside a loop.\"\n\n    # region wiki_exploit_scenario\n    WIKI_EXPLOIT_SCENARIO = \"\"\"\n```solidity\ncontract MsgValueInLoop{\n\n    mapping (address => uint256) balances;\n\n    function bad(address[] memory receivers) public payable {\n        for (uint256 i=0; i < receivers.length; i++) {\n            balances[receivers[i]] += msg.value;\n        }\n    }\n\n}\n```\n\"\"\"\n    # endregion wiki_exploit_scenario\n\n    WIKI_RECOMMENDATION = \"\"\"\nProvide an explicit array of amounts alongside the receivers array, and check that the sum of all amounts matches `msg.value`.\n\"\"\"\n\n    def _detect(self) -> List[Output]:\n        \"\"\"\"\"\"\n        results: List[Output] = []\n        for c in self.compilation_unit.contracts_derived:\n            values = detect_msg_value_in_loop(c)\n            for node in values:\n                func = node.function\n\n                info: DETECTOR_INFO = [func, \" use msg.value in a loop: \", node, \"\\n\"]\n                res = self.generate_result(info)\n                results.append(res)\n\n        return results\n", "path": "slither/detectors/statements/msg_value_in_loop.py"}]}