FAILURE MAP

Understand the failure.
Verify the repair.

Small, reproducible software failures. The broken implementation, the fix that didn’t work, and the one that passed—preserved together.

Explore the cases ↓How results are verified ↗
100840Executable case variants
20168Distinct failure mechanisms
302520Executed implementations
20168Open-access cases

WHAT THE ARCHIVE CONTAINS

100840 executable cases. 20168 are open.

Every case records the implementation that fails, the fix that did not work, and the repair that passed its checks—with recorded outputs and source hashes. This release adds 100840 cases across 20168 failure mechanisms and 254 domains.

The open tier gives you the failure and the unsuccessful fix for one case in every mechanism. The remaining 80672 cases, 5 variants per mechanism, are member-only: the verified repair, its recorded checks, and the full fixture suite are held in the member archive. Read the methodology ↗

A RECORD OF WHAT WENT WRONG

Browse the archive / 100840

Python · Standard library
REFERENCEFAILURE MECHANISMDOMAINACCESS
FA-77701

Docket countdown: court days remaining and urgency status: passed test · case 01

On the deadline day the court-day count is blank instead of zero.

Legal deadline computation● Open access↗
FA-77702

Docket countdown: court days remaining and urgency status: passed test · case 02

On the deadline day the court-day count is blank instead of zero.

Legal deadline computation◈ Members↗
FA-77703

Docket countdown: court days remaining and urgency status: passed test · case 03

On the deadline day the court-day count is blank instead of zero.

Legal deadline computation◈ Members↗
FA-77704

Docket countdown: court days remaining and urgency status: passed test · case 04

On the deadline day the court-day count is blank instead of zero.

Legal deadline computation◈ Members↗
FA-77705

Docket countdown: court days remaining and urgency status: passed test · case 05

On the deadline day the court-day count is blank instead of zero.

Legal deadline computation◈ Members↗
FA-77706

Docket countdown: court days remaining and urgency status: court range · case 01

Today is counted and the deadline day is not.

Legal deadline computation● Open access↗
FA-77707

Docket countdown: court days remaining and urgency status: court range · case 02

Today is counted and the deadline day is not.

Legal deadline computation◈ Members↗
FA-77708

Docket countdown: court days remaining and urgency status: court range · case 03

Today is counted and the deadline day is not.

Legal deadline computation◈ Members↗
FA-77709

Docket countdown: court days remaining and urgency status: court range · case 04

Today is counted and the deadline day is not.

Legal deadline computation◈ Members↗
FA-77710

Docket countdown: court days remaining and urgency status: court range · case 05

Today is counted and the deadline day is not.

Legal deadline computation◈ Members↗
FA-77711

Docket countdown: court days remaining and urgency status: due today · case 01

A Monday deadline viewed on Saturday is reported as due today.

Legal deadline computation● Open access↗
FA-77712

Docket countdown: court days remaining and urgency status: due today · case 02

A Monday deadline viewed on Saturday is reported as due today.

Legal deadline computation◈ Members↗
FA-77713

Docket countdown: court days remaining and urgency status: due today · case 03

A Monday deadline viewed on Saturday is reported as due today.

Legal deadline computation◈ Members↗
FA-77714

Docket countdown: court days remaining and urgency status: due today · case 04

A Monday deadline viewed on Saturday is reported as due today.

Legal deadline computation◈ Members↗
FA-77715

Docket countdown: court days remaining and urgency status: due today · case 05

A Monday deadline viewed on Saturday is reported as due today.

Legal deadline computation◈ Members↗
FA-77716

Docket countdown: court days remaining and urgency status: soon threshold · case 01

A deadline three calendar days away over a long weekend is flagged later than the court-day rule requires.

Legal deadline computation● Open access↗
FA-77717

Docket countdown: court days remaining and urgency status: soon threshold · case 02

A deadline three calendar days away over a long weekend is flagged later than the court-day rule requires.

Legal deadline computation◈ Members↗
FA-77718

Docket countdown: court days remaining and urgency status: soon threshold · case 03

A deadline three calendar days away over a long weekend is flagged later than the court-day rule requires.

Legal deadline computation◈ Members↗
FA-77719

Docket countdown: court days remaining and urgency status: soon threshold · case 04

A deadline three calendar days away over a long weekend is flagged later than the court-day rule requires.

Legal deadline computation◈ Members↗
FA-77720

Docket countdown: court days remaining and urgency status: soon threshold · case 05

A deadline three calendar days away over a long weekend is flagged later than the court-day rule requires.

Legal deadline computation◈ Members↗
FA-77721

Stacking stipulated extensions under a cumulative cap: signed in time · case 01

A second stipulation signed after the original deadline but within the extended one is ignored.

Legal deadline computation● Open access↗
FA-77722

Stacking stipulated extensions under a cumulative cap: signed in time · case 02

A second stipulation signed after the original deadline but within the extended one is ignored.

Legal deadline computation◈ Members↗
FA-77723

Stacking stipulated extensions under a cumulative cap: signed in time · case 03

A second stipulation signed after the original deadline but within the extended one is ignored.

Legal deadline computation◈ Members↗
FA-77724

Stacking stipulated extensions under a cumulative cap: signed in time · case 04

A second stipulation signed after the original deadline but within the extended one is ignored.

Legal deadline computation◈ Members↗
FA-77725

Stacking stipulated extensions under a cumulative cap: signed in time · case 05

A second stipulation signed after the original deadline but within the extended one is ignored.

Legal deadline computation◈ Members↗
FA-77726

Stacking stipulated extensions under a cumulative cap: cap remaining · case 01

Three 14-day stipulations extend the deadline by 42 days.

Legal deadline computation● Open access↗
FA-77727

Stacking stipulated extensions under a cumulative cap: cap remaining · case 02

Three 14-day stipulations extend the deadline by 42 days.

Legal deadline computation◈ Members↗
FA-77728

Stacking stipulated extensions under a cumulative cap: cap remaining · case 03

Three 14-day stipulations extend the deadline by 42 days.

Legal deadline computation◈ Members↗
FA-77729

Stacking stipulated extensions under a cumulative cap: cap remaining · case 04

Three 14-day stipulations extend the deadline by 42 days.

Legal deadline computation◈ Members↗
FA-77730

Stacking stipulated extensions under a cumulative cap: cap remaining · case 05

Three 14-day stipulations extend the deadline by 42 days.

Legal deadline computation◈ Members↗
FA-77731

Stacking stipulated extensions under a cumulative cap: extension base · case 01

A second extension is added to the original deadline, so extensions do not stack.

Legal deadline computation● Open access↗
FA-77732

Stacking stipulated extensions under a cumulative cap: extension base · case 02

A second extension is added to the original deadline, so extensions do not stack.

Legal deadline computation◈ Members↗
FA-77733

Stacking stipulated extensions under a cumulative cap: extension base · case 03

A second extension is added to the original deadline, so extensions do not stack.

Legal deadline computation◈ Members↗
FA-77734

Stacking stipulated extensions under a cumulative cap: extension base · case 04

A second extension is added to the original deadline, so extensions do not stack.

Legal deadline computation◈ Members↗
FA-77735

Stacking stipulated extensions under a cumulative cap: extension base · case 05

A second extension is added to the original deadline, so extensions do not stack.

Legal deadline computation◈ Members↗
FA-77736

Stacking stipulated extensions under a cumulative cap: re roll · case 01

An extension ending on a Saturday leaves the deadline on the Saturday.

Legal deadline computation● Open access↗
FA-77737

Stacking stipulated extensions under a cumulative cap: re roll · case 02

An extension ending on a Saturday leaves the deadline on the Saturday.

Legal deadline computation◈ Members↗
FA-77738

Stacking stipulated extensions under a cumulative cap: re roll · case 03

An extension ending on a Saturday leaves the deadline on the Saturday.

Legal deadline computation◈ Members↗
FA-77739

Stacking stipulated extensions under a cumulative cap: re roll · case 04

An extension ending on a Saturday leaves the deadline on the Saturday.

Legal deadline computation◈ Members↗
FA-77740

Stacking stipulated extensions under a cumulative cap: re roll · case 05

An extension ending on a Saturday leaves the deadline on the Saturday.

Legal deadline computation◈ Members↗
FA-77741

Deadlines extended by a bankruptcy filing and automatic stay: expired test · case 01

A deadline falling on the petition date is treated as already expired.

Legal deadline computation● Open access↗
FA-77742

Deadlines extended by a bankruptcy filing and automatic stay: expired test · case 02

A deadline falling on the petition date is treated as already expired.

Legal deadline computation◈ Members↗
FA-77743

Deadlines extended by a bankruptcy filing and automatic stay: expired test · case 03

A deadline falling on the petition date is treated as already expired.

Legal deadline computation◈ Members↗
FA-77744

Deadlines extended by a bankruptcy filing and automatic stay: expired test · case 04

A deadline falling on the petition date is treated as already expired.

Legal deadline computation◈ Members↗
FA-77745

Deadlines extended by a bankruptcy filing and automatic stay: expired test · case 05

A deadline falling on the petition date is treated as already expired.

Legal deadline computation◈ Members↗
FA-77746

Deadlines extended by a bankruptcy filing and automatic stay: act extension · case 01

A deadline already more than 60 days after the petition is shortened.

Legal deadline computation● Open access↗
FA-77747

Deadlines extended by a bankruptcy filing and automatic stay: act extension · case 02

A deadline already more than 60 days after the petition is shortened.

Legal deadline computation◈ Members↗
FA-77748

Deadlines extended by a bankruptcy filing and automatic stay: act extension · case 03

A deadline already more than 60 days after the petition is shortened.

Legal deadline computation◈ Members↗
FA-77749

Deadlines extended by a bankruptcy filing and automatic stay: act extension · case 04

A deadline already more than 60 days after the petition is shortened.

Legal deadline computation◈ Members↗
FA-77750

Deadlines extended by a bankruptcy filing and automatic stay: act extension · case 05

A deadline already more than 60 days after the petition is shortened.

Legal deadline computation◈ Members↗
FA-77751

Deadlines extended by a bankruptcy filing and automatic stay: stay default · case 01

A collection deadline with the stay still in force is given a computed date.

Legal deadline computation● Open access↗
FA-77752

Deadlines extended by a bankruptcy filing and automatic stay: stay default · case 02

A collection deadline with the stay still in force is given a computed date.

Legal deadline computation◈ Members↗
FA-77753

Deadlines extended by a bankruptcy filing and automatic stay: stay default · case 03

A collection deadline with the stay still in force is given a computed date.

Legal deadline computation◈ Members↗
FA-77754

Deadlines extended by a bankruptcy filing and automatic stay: stay default · case 04

A collection deadline with the stay still in force is given a computed date.

Legal deadline computation◈ Members↗
FA-77755

Deadlines extended by a bankruptcy filing and automatic stay: stay default · case 05

A collection deadline with the stay still in force is given a computed date.

Legal deadline computation◈ Members↗
FA-77756

Deadlines extended by a bankruptcy filing and automatic stay: collection base · case 01

Collection deadlines are extended from the petition date rather than the end of the stay.

Legal deadline computation● Open access↗
FA-77757

Deadlines extended by a bankruptcy filing and automatic stay: collection base · case 02

Collection deadlines are extended from the petition date rather than the end of the stay.

Legal deadline computation◈ Members↗
FA-77758

Deadlines extended by a bankruptcy filing and automatic stay: collection base · case 03

Collection deadlines are extended from the petition date rather than the end of the stay.

Legal deadline computation◈ Members↗
FA-77759

Deadlines extended by a bankruptcy filing and automatic stay: collection base · case 04

Collection deadlines are extended from the petition date rather than the end of the stay.

Legal deadline computation◈ Members↗
FA-77760

Deadlines extended by a bankruptcy filing and automatic stay: collection base · case 05

Collection deadlines are extended from the petition date rather than the end of the stay.

Legal deadline computation◈ Members↗
FA-77761

Deadlines extended by a bankruptcy filing and automatic stay: collection days · case 01

Collection deadlines receive the 60-day act extension.

Legal deadline computation● Open access↗
FA-77762

Deadlines extended by a bankruptcy filing and automatic stay: collection days · case 02

Collection deadlines receive the 60-day act extension.

Legal deadline computation◈ Members↗
FA-77763

Deadlines extended by a bankruptcy filing and automatic stay: collection days · case 03

Collection deadlines receive the 60-day act extension.

Legal deadline computation◈ Members↗
FA-77764

Deadlines extended by a bankruptcy filing and automatic stay: collection days · case 04

Collection deadlines receive the 60-day act extension.

Legal deadline computation◈ Members↗
FA-77765

Deadlines extended by a bankruptcy filing and automatic stay: collection days · case 05

Collection deadlines receive the 60-day act extension.

Legal deadline computation◈ Members↗
FA-77766

Return due date with automatic extension from the statutory date: due month offset · case 01

A partnership return is scheduled a month late.

Legal deadline computation● Open access↗
FA-77767

Return due date with automatic extension from the statutory date: due month offset · case 02

A partnership return is scheduled a month late.

Legal deadline computation◈ Members↗
FA-77768

Return due date with automatic extension from the statutory date: due month offset · case 03

A partnership return is scheduled a month late.

Legal deadline computation◈ Members↗
FA-77769

Return due date with automatic extension from the statutory date: due month offset · case 04

A partnership return is scheduled a month late.

Legal deadline computation◈ Members↗
FA-77770

Return due date with automatic extension from the statutory date: due month offset · case 05

A partnership return is scheduled a month late.

Legal deadline computation◈ Members↗
FA-77771

Return due date with automatic extension from the statutory date: request timely · case 01

An extension requested on the Monday after a weekend statutory date is rejected.

Legal deadline computation● Open access↗
FA-77772

Return due date with automatic extension from the statutory date: request timely · case 02

An extension requested on the Monday after a weekend statutory date is rejected.

Legal deadline computation◈ Members↗
FA-77773

Return due date with automatic extension from the statutory date: request timely · case 03

An extension requested on the Monday after a weekend statutory date is rejected.

Legal deadline computation◈ Members↗
FA-77774

Return due date with automatic extension from the statutory date: request timely · case 04

An extension requested on the Monday after a weekend statutory date is rejected.

Legal deadline computation◈ Members↗
FA-77775

Return due date with automatic extension from the statutory date: request timely · case 05

An extension requested on the Monday after a weekend statutory date is rejected.

Legal deadline computation◈ Members↗
FA-77776

Return due date with automatic extension from the statutory date: extension base · case 01

When the original due date was moved off a weekend, the extended due date is moved as well.

Legal deadline computation● Open access↗
FA-77777

Return due date with automatic extension from the statutory date: extension base · case 02

When the original due date was moved off a weekend, the extended due date is moved as well.

Legal deadline computation◈ Members↗
FA-77778

Return due date with automatic extension from the statutory date: extension base · case 03

When the original due date was moved off a weekend, the extended due date is moved as well.

Legal deadline computation◈ Members↗
FA-77779

Return due date with automatic extension from the statutory date: extension base · case 04

When the original due date was moved off a weekend, the extended due date is moved as well.

Legal deadline computation◈ Members↗
FA-77780

Return due date with automatic extension from the statutory date: extension base · case 05

When the original due date was moved off a weekend, the extended due date is moved as well.

Legal deadline computation◈ Members↗
FA-77781

Per-defendant removal deadlines with a one-year diversity bar: bar anniversary · case 01

For a case commenced on March 1 before a leap day, the one-year removal bar falls on February 29.

Legal deadline computation● Open access↗
FA-77782

Per-defendant removal deadlines with a one-year diversity bar: bar anniversary · case 02

For a case commenced on March 1 before a leap day, the one-year removal bar falls on February 29.

Legal deadline computation◈ Members↗
FA-77783

Per-defendant removal deadlines with a one-year diversity bar: bar anniversary · case 03

For a case commenced on March 1 before a leap day, the one-year removal bar falls on February 29.

Legal deadline computation◈ Members↗
FA-77784

Per-defendant removal deadlines with a one-year diversity bar: bar anniversary · case 04

For a case commenced on March 1 before a leap day, the one-year removal bar falls on February 29.

Legal deadline computation◈ Members↗
FA-77785

Per-defendant removal deadlines with a one-year diversity bar: bar anniversary · case 05

For a case commenced on March 1 before a leap day, the one-year removal bar falls on February 29.

Legal deadline computation◈ Members↗
FA-77786

Per-defendant removal deadlines with a one-year diversity bar: trigger choice · case 01

A courtesy copy emailed before formal service starts the 30-day clock early.

Legal deadline computation● Open access↗
FA-77787

Per-defendant removal deadlines with a one-year diversity bar: trigger choice · case 02

A courtesy copy emailed before formal service starts the 30-day clock early.

Legal deadline computation◈ Members↗
FA-77788

Per-defendant removal deadlines with a one-year diversity bar: trigger choice · case 03

A courtesy copy emailed before formal service starts the 30-day clock early.

Legal deadline computation◈ Members↗
FA-77789

Per-defendant removal deadlines with a one-year diversity bar: trigger choice · case 04

A courtesy copy emailed before formal service starts the 30-day clock early.

Legal deadline computation◈ Members↗
FA-77790

Per-defendant removal deadlines with a one-year diversity bar: trigger choice · case 05

A courtesy copy emailed before formal service starts the 30-day clock early.

Legal deadline computation◈ Members↗
FA-77791

Per-defendant removal deadlines with a one-year diversity bar: later served rule · case 01

A defendant served months after the first defendant has already lost its right to remove.

Legal deadline computation● Open access↗
FA-77792

Per-defendant removal deadlines with a one-year diversity bar: later served rule · case 02

A defendant served months after the first defendant has already lost its right to remove.

Legal deadline computation◈ Members↗
FA-77793

Per-defendant removal deadlines with a one-year diversity bar: later served rule · case 03

A defendant served months after the first defendant has already lost its right to remove.

Legal deadline computation◈ Members↗
FA-77794

Per-defendant removal deadlines with a one-year diversity bar: later served rule · case 04

A defendant served months after the first defendant has already lost its right to remove.

Legal deadline computation◈ Members↗
FA-77795

Per-defendant removal deadlines with a one-year diversity bar: later served rule · case 05

A defendant served months after the first defendant has already lost its right to remove.

Legal deadline computation◈ Members↗
FA-77796

Per-defendant removal deadlines with a one-year diversity bar: bar scope · case 01

The one-year bar is applied to a federal-question case.

Legal deadline computation● Open access↗
FA-77797

Per-defendant removal deadlines with a one-year diversity bar: bar scope · case 02

The one-year bar is applied to a federal-question case.

Legal deadline computation◈ Members↗
FA-77798

Per-defendant removal deadlines with a one-year diversity bar: bar scope · case 03

The one-year bar is applied to a federal-question case.

Legal deadline computation◈ Members↗
FA-77799

Per-defendant removal deadlines with a one-year diversity bar: bar scope · case 04

The one-year bar is applied to a federal-question case.

Legal deadline computation◈ Members↗
FA-77800

Per-defendant removal deadlines with a one-year diversity bar: bar scope · case 05

The one-year bar is applied to a federal-question case.

Legal deadline computation◈ Members↗

INSPECTABLE BY DESIGN

Every result has a runnable source.

Runnable implementations with recorded outputs, source hashes, and explicit contracts. Related variants share a failure mechanism and belong together in evaluation splits.

Read the methodology ↗