text: # This file is part of BenchExec, a framework for reliable benchmarking:
  # https://github.com/sosy-lab/benchexec
  #
  # SPDX-FileCopyrightText: 2007-2020 Dirk Beyer <https://www.sosy-lab.org>
  #
  # SPDX-License-Identifier: Apache-2.0
  
  import logging
  import os
  
  import benchexec.result as result
  import benchexec.tools.template
  
  
  class Tool(benchexec.tools.template.BaseTool2):
      """
      Tool info for the NITWIT Validator, an interpreter-based violation witness validator.
      URL: https://github.com/moves-rwth/nitwit-validator
      """
  
      REQUIRED_PATHS = ["bin/nitwit32", "bin/nitwit64"]
      BIN_DIR = "bin"
  
      def executable(self, tool_locator):
          executable = tool_locator.find_executable("nitwit.sh")
          bin_path = os.path.join(os.path.dirname(executable), self.BIN_DIR)
          if (
              not os.path.isdir(bin_path)
              or not os.path.isfile(os.path.join(bin_path, "nitwit32"))
              or not os.path.isfile(os.path.join(bin_path, "nitwit64"))
          ):
              logging.warning(
                  "Required binary files for Nitwit not found in %s.", bin_path
              )
          return executable
  
      def version(self, executable):
          return self._version_from_tool(executable, "--version")
  
      def name(self):
          return "Nitwit"
  
      def cmdline(self, executable, options, task, rlimits):
          if task.property_file:
              options = options + ["-p", task.property_file]
          return [executable] + options + [task.single_input_file]
  
      def determine_result(self, run):
          """
          See README.md at https://github.com/moves-rwth/nitwit-validator for information
          about result codes.
          @return: status of validator after executing a run
          """
          if run.exit_code.value in [0, 245]:
              status = result.RESULT_FALSE_REACH
          elif run.exit_code.value in [4, 5, 241, 242, 243, 250]:
              status = result.RESULT_UNKNOWN
          else:
              status = result.RESULT_ERROR
  
          if ("out of memory!".lower() in (line.lower() for line in run.output)) or (
              run.exit_code.value == 251
          ):
              status = "OUT OF MEMORY"
  
          return status
  