P16.d DiffT
Before 5211acfe95a0c6d82a60e2524b5e46b47fe67a3e
After bb35b941115a0a9f818e8512eebe67c29ee68355
Threshold: ZERO semantic mismatches to declared oracle; ZERO reducer mismatches; all mandatory head assertions PASS. Compare each stream and service/upstream channel independently; ignore only cross-channel arrival interleaving.

--- P16.d 5211acfe95a0c6d82a60e2524b5e46b47fe67a3e
+++ P16.d bb35b941115a0a9f818e8512eebe67c29ee68355
@@ -8,26 +8,19 @@
             "_tag": "Success",
             "value": {
               "aheadCount": 0,
-              "aheadOfDefaultCount": 1,
-              "behindCount": 2,
+              "aheadOfDefaultCount": 0,
+              "behindCount": 0,
               "branchChanges": {
                 "baseRef": "origin/main",
                 "deletions": 0,
                 "insertions": 1
               },
               "hasPrimaryRemote": true,
-              "hasUpstream": true,
+              "hasUpstream": false,
               "hasWorkingTreeChanges": true,
               "isDefaultRef": true,
               "isRepo": true,
-              "pr": {
-                "baseRef": "main",
-                "headRef": "main",
-                "number": 613,
-                "state": "open",
-                "title": "Fixture A",
-                "url": "https://github.com/proof-audit/status-fixture/pull/613"
-              },
+              "pr": null,
               "refName": "B",
               "workingTree": {
                 "deletions": 0,
@@ -85,7 +78,11 @@
               }
             },
             {
-              "_tag": "snapshot",
+              "_tag": "remoteUpdated",
+              "remote": null
+            },
+            {
+              "_tag": "localUpdated",
               "local": {
                 "branchChanges": {
                   "baseRef": "origin/main",
@@ -108,20 +105,6 @@
                   ],
                   "insertions": 1
                 }
-              },
-              "remote": {
-                "aheadCount": 0,
-                "aheadOfDefaultCount": 1,
-                "behindCount": 2,
-                "hasUpstream": true,
-                "pr": {
-                  "baseRef": "main",
-                  "headRef": "main",
-                  "number": 613,
-                  "state": "open",
-                  "title": "Fixture A",
-                  "url": "https://github.com/proof-audit/status-fixture/pull/613"
-                }
               }
             }
           ],
@@ -137,26 +120,19 @@
             "_tag": "Success",
             "value": {
               "aheadCount": 0,
-              "aheadOfDefaultCount": 1,
-              "behindCount": 2,
+              "aheadOfDefaultCount": 0,
+              "behindCount": 0,
               "branchChanges": {
                 "baseRef": "origin/main",
                 "deletions": 0,
                 "insertions": 1
               },
               "hasPrimaryRemote": true,
-              "hasUpstream": true,
+              "hasUpstream": false,
               "hasWorkingTreeChanges": true,
               "isDefaultRef": true,
               "isRepo": true,
-              "pr": {
-                "baseRef": "main",
-                "headRef": "main",
-                "number": 613,
-                "state": "open",
-                "title": "Fixture A",
-                "url": "https://github.com/proof-audit/status-fixture/pull/613"
-              },
+              "pr": null,
               "refName": "B",
               "workingTree": {
                 "deletions": 0,
@@ -172,8 +148,8 @@
             }
           },
           "expectedPredicate": true,
-          "observedPredicate": false,
-          "outcome": "FAIL",
+          "observedPredicate": true,
+          "outcome": "PASS",
           "test": "failed pull reconciliation rejects old-branch remote",
           "virtualTimeMs": 0
         },
@@ -186,7 +162,24 @@
           "virtualTimeMs": 0
         }
       ],
-      "branchProbeChannel": [],
+      "branchProbeChannel": [
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        }
+      ],
       "checkpoints": [],
       "clockAdvances": [
         {
@@ -201,26 +194,19 @@
             "_tag": "Success",
             "value": {
               "aheadCount": 0,
-              "aheadOfDefaultCount": 1,
-              "behindCount": 2,
+              "aheadOfDefaultCount": 0,
+              "behindCount": 0,
               "branchChanges": {
                 "baseRef": "origin/main",
                 "deletions": 0,
                 "insertions": 1
               },
               "hasPrimaryRemote": true,
-              "hasUpstream": true,
+              "hasUpstream": false,
               "hasWorkingTreeChanges": true,
               "isDefaultRef": true,
               "isRepo": true,
-              "pr": {
-                "baseRef": "main",
-                "headRef": "main",
-                "number": 613,
-                "state": "open",
-                "title": "Fixture A",
-                "url": "https://github.com/proof-audit/status-fixture/pull/613"
-              },
+              "pr": null,
               "refName": "B",
               "workingTree": {
                 "deletions": 0,
@@ -241,7 +227,16 @@
       ],
       "invalidationChannel": [
         {
+          "kind": "invalidate-remote"
+        },
+        {
+          "kind": "invalidate-local"
+        },
+        {
           "kind": "invalidate-all"
+        },
+        {
+          "kind": "invalidate-remote"
         },
         {
           "kind": "invalidate-local"
@@ -312,6 +307,27 @@
             }
           },
           "n": 3,
+          "virtualTimeMs": 0
+        },
+        {
+          "local": {
+            "branchChanges": {
+              "baseRef": "origin/main",
+              "deletions": 0,
+              "insertions": 1
+            },
+            "hasPrimaryRemote": true,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
+            "refName": "main",
+            "workingTree": {
+              "deletions": 0,
+              "files": [],
+              "insertions": 0
+            }
+          },
+          "n": 4,
           "virtualTimeMs": 0
         },
         {
@@ -338,7 +354,7 @@
               "insertions": 1
             }
           },
-          "n": 4,
+          "n": 5,
           "virtualTimeMs": 0
         }
       ],
@@ -509,7 +525,36 @@
       },
       {
         "event": {
-          "_tag": "snapshot",
+          "_tag": "remoteUpdated",
+          "remote": null
+        },
+        "merged": {
+          "aheadCount": 0,
+          "aheadOfDefaultCount": 0,
+          "behindCount": 0,
+          "branchChanges": {
+            "baseRef": "origin/main",
+            "deletions": 0,
+            "insertions": 1
+          },
+          "hasPrimaryRemote": true,
+          "hasUpstream": false,
+          "hasWorkingTreeChanges": false,
+          "isDefaultRef": true,
+          "isRepo": true,
+          "pr": null,
+          "refName": "main",
+          "workingTree": {
+            "deletions": 0,
+            "files": [],
+            "insertions": 0
+          }
+        },
+        "virtualTimeMs": 0
+      },
+      {
+        "event": {
+          "_tag": "localUpdated",
           "local": {
             "branchChanges": {
               "baseRef": "origin/main",
@@ -532,44 +577,23 @@
               ],
               "insertions": 1
             }
-          },
-          "remote": {
-            "aheadCount": 0,
-            "aheadOfDefaultCount": 1,
-            "behindCount": 2,
-            "hasUpstream": true,
-            "pr": {
-              "baseRef": "main",
-              "headRef": "main",
-              "number": 613,
-              "state": "open",
-              "title": "Fixture A",
-              "url": "https://github.com/proof-audit/status-fixture/pull/613"
-            }
           }
         },
         "merged": {
           "aheadCount": 0,
-          "aheadOfDefaultCount": 1,
-          "behindCount": 2,
+          "aheadOfDefaultCount": 0,
+          "behindCount": 0,
           "branchChanges": {
             "baseRef": "origin/main",
             "deletions": 0,
             "insertions": 1
           },
           "hasPrimaryRemote": true,
-          "hasUpstream": true,
+          "hasUpstream": false,
           "hasWorkingTreeChanges": true,
           "isDefaultRef": true,
           "isRepo": true,
-          "pr": {
-            "baseRef": "main",
-            "headRef": "main",
-            "number": 613,
-            "state": "open",
-            "title": "Fixture A",
-            "url": "https://github.com/proof-audit/status-fixture/pull/613"
-          },
+          "pr": null,
           "refName": "B",
           "workingTree": {
             "deletions": 0,