Skip to content

fix(main): report transition-assertion failures on the inbound link #362

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jp-fizzbee merged 1 commit into from
May 22, 2026
Merged

fix(main): report transition-assertion failures on the inbound link #362

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions main.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -870,10 +870,21 @@ func modelCheckSingleSpec(f *ast.File, stateConfig *ast.StateSpaceOptions, dirPa

} else if failedNode != nil {
clearProgressLine()
// Always-assertion failures live on the node's Process.FailedInvariants.
// Transition-assertion failures live on the *inbound link* — see
// processor.go where CheckTransitionInvariants writes to
// node.Inbound[0].FailedInvariants. Without checking the link, a
// transition-assertion failure in simulation falls through to the
// misleading "Deadlock/stuttering" message, and in model-checking
// mode nothing about the failure is printed at all.
if failedNode.FailedInvariants != nil && len(failedNode.FailedInvariants) > 0 && len(failedNode.FailedInvariants[0]) > 0 {
fmt.Println("FAILED: Model checker failed. Invariant: ", f.Invariants[failedNode.FailedInvariants[0][0]].Name)
} else if len(failedNode.Inbound) > 0 && failedNode.Inbound[0].FailedInvariants != nil && len(failedNode.Inbound[0].FailedInvariants[0]) > 0 {
fmt.Println("FAILED: Model checker failed. Transition Invariant:", f.Invariants[failedNode.Inbound[0].FailedInvariants[0][0]].Name)
} else if simulation {
fmt.Println("FAILED: Model checker failed. Deadlock/stuttering detected")
} else {
fmt.Println("FAILED: Model checker failed (no failed-invariant metadata on the failing node; see trace below).")
}
if simulation {
fmt.Println("seed:", p1.Seed)
Expand Down
Loading