fix: lowering of unsigned comparisons #1179

	# workflow to build and test clam

	name: CI

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the master and dev14 branches
	push:
	branches: [master, dev14]
	pull_request:
	branches: [master, dev14]
	schedule:
	- cron: 0 0 * * * # run every day at UTC 00:00

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "test"
	test:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- name: Check out repo
	uses: actions/checkout@v2
	with:
	ref: master
	- name: Build clam and run tests
	run: docker build --build-arg BRANCH=master -t seahorn/clam-llvm14:nightly -f docker/clam.Dockerfile .
	# Logging in using this mechanism prints the following warning
	# WARNING! Your password will be stored unencrypted in /home/runner/.docker/config.json.
	# There does not seem to be an easy way around it though using docker actions may mitigate
	# it.
	- name: Login to DockerHub Registry
	if: ${{ github.event_name == 'schedule' }} # only push if nightly run
	run: echo ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }} \| docker login -u ${{ secrets.DOCKER_HUB_USERNAME }} --password-stdin
	- name: Tag and push clam (nightly)
	if: ${{ github.event_name == 'schedule' }} # only push if nightly run
	run: \|
	docker push seahorn/clam-llvm14:nightly

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