Proof Portal

Projects

jsonparser

ProbeLabs36 findings · 123 requirements
SYS-REQ-045SystemReview

When internal helper stringEnd returns -1 indicating no closing quote was found, all callers of stringEnd shall treat this as a malformed-string condition and shall not proceed with normal value extraction.

PriorityshallTypeguaranteeCategoryfunctionalComponentparserAssuranceEFindingsnone open

Specification

The requirement exactly as authored — its complete prose text and, where present, the formal FRETish sentence it compiles to.

Description

When internal helper stringEnd returns -1 indicating no closing quote was found, all callers of stringEnd shall treat this as a malformed-string condition and shall not proceed with normal value extraction.

FRETish formula
the parser shall always satisfy !stringEnd_returns_negative_one | caller_handles_stringEnd_sentinel

Rationale & tags

Why this requirement exists, and how it is categorised.

stringEnd returning -1 is a sentinel value that indicates truncated or malformed string input. All callers must check for this before using the return value as an offset.

sentineldata-constraint

Verification & provenance

How this requirement was checked: the review trail, edit history, and the machine-analysis status terms (each ⓘ explains what it means).

Assurance levelE
Formalizationvalid
Realizabilityrealizable
Vacuitychecked_ok
Strategyfretish

Review

Status
approved
Reviewer
human:leonidbugaev
Reviewed
Apr 23, 2026, 00:00 UTC

History

Created
Apr 14, 2026, 18:00 UTC · agent:claude
Modified
Apr 14, 2026, 18:00 UTC · agent:claude

Obligations

What this requirement must witness to be considered satisfied — the required evidence, and the tests that discharge each one.

No obligations recorded for this requirement

Proof obligations are recorded once evidence is generated. None have been captured here yet — this is expected, not a gap in the requirement itself. A required class of evidence the requirement must witness — the bridge between the requirement existing and it being proven.

Formula evidence

The formal formula behind this requirement, the variables it is written over, and the tests that exercise it (each term is explained inline).

FRETish formula

the parser shall always satisfy !stringEnd_returns_negative_one | caller_handles_stringEnd_sentinel

Variables

NameTypeDirectionDescription
stringEnd_returns_negative_oneTrue when the internal helper stringEnd returns -1 indicating no closing quote was found.
caller_handles_stringEnd_sentinelTrue when all callers of stringEnd treat -1 as a malformed-string condition and do not proceed with normal value extraction.

Witnesses· 3 scenarios total

  • TestStringEndSentinel
    deep_spec_test.go:135
  • TestMCDC_SYS_REQ_045_Row1_TriggerFalse
    mcdc_spec_witnesses_test.go:1556exercises 1 condition scenario
  • TestMCDC_SYS_REQ_045_Row2_InvariantViolation
    mcdc_spec_witnesses_test.go:1568exercises 1 condition scenario
  • TestMCDC_SYS_REQ_045_Row3_SentinelHandled
    mcdc_spec_witnesses_test.go:1579exercises 1 condition scenario
  • TestStringEnd_FastPath_LongInputs
    optimization_equiv_test.go:108
  • TestStringEnd_FastPathEquivalence_Cases
    optimization_equiv_test.go:52
  • TestStringEnd_FastPathEquivalence_Random
    optimization_equiv_test.go:81

Its place

This requirement shown inside its trace neighbourhood — the parents it satisfies, the code and tests attached to it, and its findings.

Loading graph…

Trace evidence

The concrete artifacts linked to this requirement — implementing code, verifying tests, documents, and the findings raised against it.

Impact

Blast radius — if you change this requirement, what else may need re-checking, and what it in turn depends on.

If you change this

Requirements
0
Files
1
Tests
3
At-risk contracts
0

Files to re-check (1)

  • parser.goparser.go

Tests to re-run (3)

  • deep_spec_test.godeep_spec_test.go
  • mcdc_spec_witnesses_test.gomcdc_spec_witnesses_test.go
  • optimization_equiv_test.gooptimization_equiv_test.go

What this rests on

Discussions

Discuss this with the proof team. Nothing changes in your audit automatically — you open a request and a staff member records any outcome inside the thread.

Sign in to discuss this with the proof team.Sign in