add a CI (#109)

.github/workflows/bolts-CI.yml

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+name: Bolts CI
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+jobs:
+  tests:
+    if: github.event.pull_request.draft == false
+    runs-on: [self-hosted, linux]
+    env:
+      # define Java options for both official sbt and sbt-extras
+      JAVA_OPTS: -Dsbt.io.implicit.relative.glob.conversion=allow -Xss512M -Xms1024M -Xmx12G -XX:MaxMetaspaceSize=2G -XX:+UseCodeCacheFlushing -XX:ReservedCodeCacheSize=768M
+      JVM_OPTS:  -Dsbt.io.implicit.relative.glob.conversion=allow -Xss512M -Xms1024M -Xmx12G -XX:MaxMetaspaceSize=2G -XX:+UseCodeCacheFlushing -XX:ReservedCodeCacheSize=768M
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+    - name: Setup JDK
+      uses: actions/setup-java@v3
+      with:
+        distribution: temurin
+        java-version: 17
+    - name: Install stainless and solvers
+      run: ./install_stainless_and_solvers.sh $GITHUB_WORKSPACE/.local/bin $GITHUB_WORKSPACE/.local
+    - name: Add stainless to PATH
+      run: echo "$GITHUB_WORKSPACE/.local/stainless/frontends/dotty/target/universal/stage/bin" >> $GITHUB_PATH
+    - name: Test stainless availability
+      run: stainless-dotty --version
+    - name: Add solvers to PATH
+      run: echo "$GITHUB_WORKSPACE/.local/bin" >> $GITHUB_PATH
+    - name: Test solvers availability
+      run: cvc5 --version && z3 --version && cvc4 --version
+    - name: Bolts Tests
+      run: ./run_tests.sh
+  fail_if_pull_request_is_draft:
+    if: github.event.pull_request.draft == true
+    runs-on: [self-hosted, linux]
+    steps:
+    - name: Fails in order to indicate that pull request needs to be marked as ready to review and tests workflows need to pass.
+      run: exit 1

install_stainless_and_solvers.sh

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+TEMP_DIR="temp"
+SOLVERS_DIR="$1"
+STAINLESS_DIT="$2"
+
+mkdir -p "$SOLVERS_DIR"
+mkdir -p "$TEMP_DIR"
+mkdir -p "$STAINLESS_DIR"
+
+# stainless
+cd "$STAINLESS_DIR"
+git clone https://github.com/epfl-lara/stainless
+cd stainless
+sbt universal:stage
+
+# cvc5
+wget https://github.com/cvc5/cvc5/releases/download/cvc5-1.1.2/cvc5-Linux-static.zip -O "$TEMP_DIR/downloaded.zip" -q
+unzip "$TEMP_DIR/downloaded.zip" -d "$TEMP_DIR" 
+CVC5_DIR=$(ls "$TEMP_DIR" | grep cvc5)
+mv "$TEMP_DIR/$CVC5_DIR/bin/cvc5" "$SOLVERS_DIR/cvc5"
+chmod +x "$SOLVERS_DIR/cvc5"
+rm -rf "$TEMP_DIR"
+
+# CVC4
+wget https://cvc4.cs.stanford.edu/downloads/builds/x86_64-linux-opt/cvc4-1.8-x86_64-linux-opt -O "$SOLVERS_DIR/cvc4" -q
+chmod +x "$SOLVERS_DIR/cvc4"
+
+# z3
+mkdir -p "$TEMP_DIR"
+wget https://github.com/Z3Prover/z3/releases/download/z3-4.13.0/z3-4.13.0-x64-glibc-2.35.zip -O "$TEMP_DIR/downloaded.zip" -q
+unzip "$TEMP_DIR/downloaded.zip" -d "$TEMP_DIR" 
+Z3_DIR=$(ls "$TEMP_DIR" | grep z3)
+mv "$TEMP_DIR/$Z3_DIR/bin/z3" "$SOLVERS_DIR/z3"
+chmod +x "$SOLVERS_DIR/z3"
+rm -rf "$TEMP_DIR"
+
+echo "************** Solvers Installed **************"
+exit 0