P15.b 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.

--- P15.b 5211acfe95a0c6d82a60e2524b5e46b47fe67a3e
+++ P15.b bb35b941115a0a9f818e8512eebe67c29ee68355
@@ -37,55 +37,9 @@
                   "url": "https://github.com/proof-audit/status-fixture/pull/613"
                 }
               }
-            }
-          ],
-          "expectedPredicate": true,
-          "observedPredicate": false,
-          "outcome": "FAIL",
-          "test": "pulled local published while second remote read held",
-          "virtualTimeMs": 0
-        },
-        {
-          "actual": 1,
-          "expectedPredicate": true,
-          "observedPredicate": true,
-          "outcome": "PASS",
-          "test": "exactly one pull",
-          "virtualTimeMs": 0
-        },
-        {
-          "actual": {
-            "result": {
-              "aheadCount": 0,
-              "aheadOfDefaultCount": 1,
-              "behindCount": 0,
-              "branchChanges": {
-                "baseRef": "origin/main",
-                "deletions": 0,
-                "insertions": 6
-              },
-              "hasPrimaryRemote": true,
-              "hasUpstream": true,
-              "hasWorkingTreeChanges": false,
-              "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"
-              },
-              "refName": "main",
-              "workingTree": {
-                "deletions": 0,
-                "files": [],
-                "insertions": 0
-              }
-            },
-            "snapshot": {
-              "_tag": "snapshot",
+            },
+            {
+              "_tag": "localUpdated",
               "local": {
                 "branchChanges": {
                   "baseRef": "origin/main",
@@ -102,34 +56,105 @@
                   "files": [],
                   "insertions": 0
                 }
+              }
+            }
+          ],
+          "expectedPredicate": true,
+          "observedPredicate": true,
+          "outcome": "PASS",
+          "test": "pulled local published while second remote read held",
+          "virtualTimeMs": 0
+        },
+        {
+          "actual": 1,
+          "expectedPredicate": true,
+          "observedPredicate": true,
+          "outcome": "PASS",
+          "test": "exactly one pull",
+          "virtualTimeMs": 0
+        },
+        {
+          "actual": {
+            "result": {
+              "aheadCount": 0,
+              "aheadOfDefaultCount": 0,
+              "behindCount": 0,
+              "branchChanges": {
+                "baseRef": "origin/main",
+                "deletions": 0,
+                "insertions": 6
               },
-              "remote": {
-                "aheadCount": 0,
-                "aheadOfDefaultCount": 1,
-                "behindCount": 0,
-                "hasUpstream": true,
-                "pr": {
-                  "baseRef": "main",
-                  "headRef": "main",
-                  "number": 613,
-                  "state": "open",
-                  "title": "Fixture A",
-                  "url": "https://github.com/proof-audit/status-fixture/pull/613"
+              "hasPrimaryRemote": true,
+              "hasUpstream": false,
+              "hasWorkingTreeChanges": false,
+              "isDefaultRef": true,
+              "isRepo": true,
+              "pr": null,
+              "refName": "B",
+              "workingTree": {
+                "deletions": 0,
+                "files": [],
+                "insertions": 0
+              }
+            },
+            "snapshot": {
+              "_tag": "snapshot",
+              "local": {
+                "branchChanges": {
+                  "baseRef": "origin/main",
+                  "deletions": 0,
+                  "insertions": 6
+                },
+                "hasPrimaryRemote": true,
+                "hasWorkingTreeChanges": false,
+                "isDefaultRef": true,
+                "isRepo": true,
+                "refName": "B",
+                "workingTree": {
+                  "deletions": 0,
+                  "files": [],
+                  "insertions": 0
                 }
-              }
+              },
+              "remote": null
             }
           },
           "expectedPredicate": true,
-          "observedPredicate": false,
-          "outcome": "FAIL",
+          "observedPredicate": true,
+          "outcome": "PASS",
           "test": "switch discards post-pull A remote and returns B/null",
           "virtualTimeMs": 0
         }
       ],
-      "branchProbeChannel": [],
+      "branchProbeChannel": [
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "main",
+          "virtualTimeMs": 0
+        },
+        {
+          "branch": "B",
+          "virtualTimeMs": 0
+        }
+      ],
       "checkpoints": [
         {
-          "localReads": 4,
+          "localReads": 5,
           "name": "remote-held",
           "pending": true,
           "pulls": 1,
@@ -153,7 +178,7 @@
           "pulls": 1,
           "result": {
             "aheadCount": 0,
-            "aheadOfDefaultCount": 1,
+            "aheadOfDefaultCount": 0,
             "behindCount": 0,
             "branchChanges": {
               "baseRef": "origin/main",
@@ -161,18 +186,62 @@
               "insertions": 6
             },
             "hasPrimaryRemote": true,
-            "hasUpstream": true,
-            "hasWorkingTreeChanges": false,
-            "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"
-            },
+            "hasUpstream": false,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
+            "pr": null,
+            "refName": "B",
+            "workingTree": {
+              "deletions": 0,
+              "files": [],
+              "insertions": 0
+            }
+          },
+          "virtualTimeMs": 0
+        }
+      ],
+      "invalidationChannel": [
+        {
+          "kind": "invalidate-remote"
+        },
+        {
+          "kind": "invalidate-local"
+        },
+        {
+          "kind": "invalidate-all"
+        },
+        {
+          "kind": "invalidate-remote"
+        },
+        {
+          "kind": "invalidate-local"
+        },
+        {
+          "kind": "invalidate-all"
+        },
+        {
+          "kind": "invalidate-local"
+        },
+        {
+          "kind": "invalidate-remote"
+        },
+        {
+          "kind": "invalidate-local"
+        }
+      ],
+      "localReadChannel": [
+        {
+          "local": {
+            "branchChanges": {
+              "baseRef": "origin/main",
+              "deletions": 0,
+              "insertions": 1
+            },
+            "hasPrimaryRemote": true,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
             "refName": "main",
             "workingTree": {
               "deletions": 0,
@@ -180,21 +249,9 @@
               "insertions": 0
             }
           },
-          "virtualTimeMs": 0
-        }
-      ],
-      "invalidationChannel": [
-        {
-          "kind": "invalidate-all"
-        },
-        {
-          "kind": "invalidate-local"
-        },
-        {
-          "kind": "invalidate-all"
-        }
-      ],
-      "localReadChannel": [
+          "n": 1,
+          "virtualTimeMs": 0
+        },
         {
           "local": {
             "branchChanges": {
@@ -213,7 +270,7 @@
               "insertions": 0
             }
           },
-          "n": 1,
+          "n": 2,
           "virtualTimeMs": 0
         },
         {
@@ -234,7 +291,7 @@
               "insertions": 0
             }
           },
-          "n": 2,
+          "n": 3,
           "virtualTimeMs": 0
         },
         {
@@ -255,7 +312,7 @@
               "insertions": 0
             }
           },
-          "n": 3,
+          "n": 4,
           "virtualTimeMs": 0
         },
         {
@@ -276,7 +333,28 @@
               "insertions": 0
             }
           },
-          "n": 4,
+          "n": 5,
+          "virtualTimeMs": 0
+        },
+        {
+          "local": {
+            "branchChanges": {
+              "baseRef": "origin/main",
+              "deletions": 0,
+              "insertions": 6
+            },
+            "hasPrimaryRemote": true,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
+            "refName": "B",
+            "workingTree": {
+              "deletions": 0,
+              "files": [],
+              "insertions": 0
+            }
+          },
+          "n": 6,
           "virtualTimeMs": 0
         }
       ],
@@ -307,31 +385,18 @@
               "hasWorkingTreeChanges": false,
               "isDefaultRef": true,
               "isRepo": true,
-              "refName": "main",
+              "refName": "B",
               "workingTree": {
                 "deletions": 0,
                 "files": [],
                 "insertions": 0
               }
             },
-            "remote": {
-              "aheadCount": 0,
-              "aheadOfDefaultCount": 1,
-              "behindCount": 0,
-              "hasUpstream": true,
-              "pr": {
-                "baseRef": "main",
-                "headRef": "main",
-                "number": 613,
-                "state": "open",
-                "title": "Fixture A",
-                "url": "https://github.com/proof-audit/status-fixture/pull/613"
-              }
-            }
+            "remote": null
           },
           "merged": {
             "aheadCount": 0,
-            "aheadOfDefaultCount": 1,
+            "aheadOfDefaultCount": 0,
             "behindCount": 0,
             "branchChanges": {
               "baseRef": "origin/main",
@@ -339,19 +404,12 @@
               "insertions": 6
             },
             "hasPrimaryRemote": true,
-            "hasUpstream": true,
-            "hasWorkingTreeChanges": false,
-            "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"
-            },
-            "refName": "main",
+            "hasUpstream": false,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
+            "pr": null,
+            "refName": "B",
             "workingTree": {
               "deletions": 0,
               "files": [],
@@ -587,7 +645,7 @@
       },
       {
         "event": {
-          "_tag": "snapshot",
+          "_tag": "localUpdated",
           "local": {
             "branchChanges": {
               "baseRef": "origin/main",
@@ -603,27 +661,13 @@
               "deletions": 0,
               "files": [],
               "insertions": 0
-            }
-          },
-          "remote": {
-            "aheadCount": 0,
-            "aheadOfDefaultCount": 1,
-            "behindCount": 0,
-            "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": 0,
+          "behindCount": 2,
           "branchChanges": {
             "baseRef": "origin/main",
             "deletions": 0,
@@ -650,6 +694,80 @@
           }
         },
         "virtualTimeMs": 0
+      },
+      {
+        "event": {
+          "_tag": "remoteUpdated",
+          "remote": null
+        },
+        "merged": {
+          "aheadCount": 0,
+          "aheadOfDefaultCount": 0,
+          "behindCount": 0,
+          "branchChanges": {
+            "baseRef": "origin/main",
+            "deletions": 0,
+            "insertions": 6
+          },
+          "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",
+              "deletions": 0,
+              "insertions": 6
+            },
+            "hasPrimaryRemote": true,
+            "hasWorkingTreeChanges": false,
+            "isDefaultRef": true,
+            "isRepo": true,
+            "refName": "B",
+            "workingTree": {
+              "deletions": 0,
+              "files": [],
+              "insertions": 0
+            }
+          }
+        },
+        "merged": {
+          "aheadCount": 0,
+          "aheadOfDefaultCount": 0,
+          "behindCount": 0,
+          "branchChanges": {
+            "baseRef": "origin/main",
+            "deletions": 0,
+            "insertions": 6
+          },
+          "hasPrimaryRemote": true,
+          "hasUpstream": false,
+          "hasWorkingTreeChanges": false,
+          "isDefaultRef": true,
+          "isRepo": true,
+          "pr": null,
+          "refName": "B",
+          "workingTree": {
+            "deletions": 0,
+            "files": [],
+            "insertions": 0
+          }
+        },
+        "virtualTimeMs": 0
       }
     ]
   }