[PASS] membership: 4 members, f=1, quorum 3  (n=4 f=1 quorum=3)
[PASS] membership: configuration_hash recomputed  (9ad62c270187b9e16d2938370457ddc257cdf9849be61253f4319a5738387fd2)
[PASS] cain-mr2-node-1: reports the same configuration_hash
[PASS] cain-mr2-node-1: 52 COMMIT_QC + 52 PREPARE_QC verified, chain contiguous from genesis  (head a8dfd92cfb4b2218)
[PASS] cain-mr2-node-1: stated head_decision_hash matches the folded chain
[PASS] cain-mr2-node-2: reports the same configuration_hash
[PASS] cain-mr2-node-2: 52 COMMIT_QC + 52 PREPARE_QC verified, chain contiguous from genesis  (head a8dfd92cfb4b2218)
[PASS] cain-mr2-node-2: stated head_decision_hash matches the folded chain
[PASS] cain-mr2-node-3: reports the same configuration_hash
[PASS] cain-mr2-node-3: 52 COMMIT_QC + 52 PREPARE_QC verified, chain contiguous from genesis  (head a8dfd92cfb4b2218)
[PASS] cain-mr2-node-3: stated head_decision_hash matches the folded chain
[PASS] cain-mr2-node-4: reports the same configuration_hash
[PASS] cain-mr2-node-4: 52 COMMIT_QC + 52 PREPARE_QC verified, chain contiguous from genesis  (head a8dfd92cfb4b2218)
[PASS] cain-mr2-node-4: stated head_decision_hash matches the folded chain
[PASS] all nodes: identical decision chain (same sequence -> same digest -> same decision_hash)  (52 decisions)
[PASS] all nodes: identical application state hash after the run  (40c72d274cca4ec3)
[PASS] run spans a view change (decisions committed in more than one view)  (views [0, 1, 2, 3, 4, 5])
[PASS] VIEW_CHANGE_QC for view 4: signatures + quorum
[PASS] AuthorizationCertificate seq 52 issued by cain-mr2-node-1
[PASS] AuthorizationCertificate seq 52 issued by cain-mr2-node-2
[PASS] AuthorizationCertificate seq 52 issued by cain-mr2-node-3
[PASS] AuthorizationCertificate seq 52 issued by cain-mr2-node-4
[PASS] negative control: forged signature -> rejected  (signature of 'cain-mr2-node-1' does not verify)
[PASS] negative control: below quorum (hash recomputed) -> rejected  (2 distinct signers, need 3)
[PASS] negative control: COMMIT votes presented as PREPARE (domain separation) -> rejected  (vote from 'cain-mr2-node-1' is a COMMIT by 'cain-mr2-node-1', need PREPARE)
[PASS] negative control: different decision digest (hash recomputed) -> rejected  (vote from 'cain-mr2-node-1' is for another (sequence, digest))
[PASS] negative control: cross-cluster replay -> rejected  (wrong cluster or epoch)
[PASS] negative control: cross-view replay (hash recomputed) -> rejected  (vote from 'cain-mr2-node-1' is for view 5)
[PASS] negative control: vote content altered after signing -> rejected  (signature of 'cain-mr2-node-1' does not verify)

ALL_CHECKS_PASSED: 29/29 checks, 416 certificates verified