From 66bd799f0526de5d27d2faee0ebecd7e8714f02c Mon Sep 17 00:00:00 2001
From: Andrew Noyes <andrew@weaselab.dev>
Date: Sun, 30 Jun 2024 21:20:05 -0700
Subject: [PATCH] Fix hasty change about `end` invariants

`end` is allowed to be <= 0 at the beginning of
checkMaxBetweenExclusive, but not later after checking for the first
range version.
---
 ConflictSet.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index 2cb122a..1c964f2 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -1967,7 +1967,7 @@ bool checkMaxBetweenExclusive(Node *n, int begin, int end,
                               InternalVersionT readVersion) {
   assume(-1 <= begin);
   assume(begin <= 256);
-  assume(0 < end);
+  assume(-1 <= end);
   assume(end <= 256);
   assume(begin < end);