diff --git a/alloy/ptx.als b/alloy/ptx.als
index d54b512..1bff2cd 100644
--- a/alloy/ptx.als
+++ b/alloy/ptx.als
@@ -129,8 +129,12 @@ pred no_thin_air {
   acyclic[rf + dep]
 }
 
+pred sc_per_location {
+  acyclic[strong[com] + po_loc]
+}
+
 pred ptx_mm {
-  no_thin_air and atomicity and coherence and causality and seq_cst
+  no_thin_air and atomicity and coherence and causality and seq_cst and sc_per_location
 }
 
 
diff --git a/tests/SC_per_location.test b/tests/SC_per_location.test
new file mode 100644
index 0000000..4412f91
--- /dev/null
+++ b/tests/SC_per_location.test
@@ -0,0 +1,21 @@
+.global x;
+.global f1;
+.global f2;
+
+d0.b0.t0 {
+  st.release.sys [x], 1;
+  st.release.sys [f1], 1;
+}
+
+d0.b1.t0 {
+  st.release.gpu [x], 2;
+  ld.acquire.sys r0, [x];
+  st.release.sys [f2], 1;
+}
+d0.b2.t0 {
+  ld.acquire.sys r1, [f2];
+  ld.acquire.sys r2, [f2];
+  ld.acquire.sys r3, [x];
+}
+
+assert (r0 != 0 || r1 != 1 || r2 != 1 || r3 != 2) as my_test;
\ No newline at end of file