Refactor DoubleEndedQueue (#4150)

Co-authored-by: Francisco <fg@frang.io>

certora/run.js

@@ -28,6 +28,11 @@ const argv = require('yargs')
       type: 'number',
       default: 4,
     },
+    verbose: {
+      alias: 'v',
+      type: 'count',
+      default: 0,
+    },
     options: {
       alias: 'o',
       type: 'array',
@@ -65,6 +70,9 @@ for (const { spec, contract, files, options = [] } of specs) {
 // Run certora, aggregate the output and print it at the end
 async function runCertora(spec, contract, files, options = []) {
   const args = [...files, '--verify', `${contract}:certora/specs/${spec}.spec`, ...options];
+  if (argv.verbose) {
+    console.log('Running:', args.join(' '));
+  }
   const child = proc.spawn('certoraRun', args);
 
   const stream = new PassThrough();