diff --git a/clang/lib/StaticAnalyzer/Core/RangedConstraintManager.cpp b/clang/lib/StaticAnalyzer/Core/RangedConstraintManager.cpp
--- a/clang/lib/StaticAnalyzer/Core/RangedConstraintManager.cpp
+++ b/clang/lib/StaticAnalyzer/Core/RangedConstraintManager.cpp
@@ -137,10 +137,13 @@
 
   // Reverse the operation and add directly to state.
   const llvm::APSInt &Zero = BVF.getValue(0, T);
+  llvm::APSInt Adjustment = Zero;
+  computeAdjustment(Sym, Adjustment);
+
   if (Assumption)
-    return assumeSymNE(State, Sym, Zero, Zero);
-  else
-    return assumeSymEQ(State, Sym, Zero, Zero);
+    return assumeSymNE(State, Sym, Zero, Adjustment);
+
+  return assumeSymEQ(State, Sym, Zero, Adjustment);
 }
 
 ProgramStateRef RangedConstraintManager::assumeSymRel(ProgramStateRef State,
diff --git a/clang/test/Analysis/infeasible_paths.c b/clang/test/Analysis/infeasible_paths.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Analysis/infeasible_paths.c
@@ -0,0 +1,25 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -verify %s
+
+// expected-no-diagnostics
+
+void clang_analyzer_warnIfReached();
+
+void unsupportedSymAssumption_1(int a) {
+  int b = a + 1;
+  if (b + 1)
+    return;
+  // At this point, b == -1, a == -2
+  // and this condition is always true.
+  if (b < 1)
+    return;
+  clang_analyzer_warnIfReached(); // no-warning
+}
+
+void unsupportedSymAssumption_2(int a) {
+  int b = a - 1;
+  if (!b)
+    return;
+  if (b)
+    return;
+  clang_analyzer_warnIfReached(); // no-warning
+}