From 45d8b1a74beaf6a80ce44a1f9aa3d59abc5d0582 Mon Sep 17 00:00:00 2001
From: Brian Norris <banorris@uci.edu>
Date: Wed, 22 Aug 2012 19:15:04 -0700
Subject: [PATCH] action: (assertion) disallow out-of-order synchronization

We build our ModelChecker around the assumption that synchronization never
occurs counter to the execution order. This assertion lets us know if that
fails.
---
 action.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/action.cc b/action.cc
index b9e9c02..5124780 100644
--- a/action.cc
+++ b/action.cc
@@ -177,6 +177,7 @@ void ModelAction::read_from(const ModelAction *act)
  * @param act The ModelAction to synchronize with
  */
 void ModelAction::synchronize_with(const ModelAction *act) {
+	ASSERT(*act < *this);
 	model->check_promises(cv, act->cv);
 	cv->merge(act->cv);
 }
-- 
2.34.1