Fix #246: [milestone Milestone 3] Symbolic execution engine core - path exploration, constraint generation, and Z3 model extraction - #248
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…th exploration, constraint generation, and Z3 model extraction
Contributor
Author
SummaryImplements Milestone 3 symbolic execution engine with comprehensive test coverage; no API break or blockers found Severitylow Blocking findingsNone. Verdict✅ Approved Merge risklow Audit
{
"approved": true,
"severity": "low",
"summary": "Implements Milestone 3 symbolic execution engine with comprehensive test coverage; no API break or blockers found",
"findings": [],
"merge_risk": "low",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
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"same_verdict_count": 1
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryPR contains undefined types that prevent compilation and an integer truncation bug Severityhigh Blocking findings
Verdict❌ Rejected Merge riskhigh Audit
{
"approved": false,
"severity": "high",
"summary": "PR contains undefined types that prevent compilation and an integer truncation bug",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 92,
"issue": "defaultSymbolicSolver declared as type Solver, but Solver type/interface is not defined anywhere in the diff - this is a compilation error",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 92,
"issue": "Z3Solver type is referenced but not defined in the diff - this is a compilation error",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 120,
"issue": "runWithSolver function accepts a Solver parameter but Solver type/interface is not defined - compilation error",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 252,
"issue": "toConcrete performs unsafe int64 to int32 conversion without overflow check - a large JSON number (e.g., 2^40) will silently truncate to a wrong value, potentially causing incorrect symbolic execution",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 9,
"issue": "Removed ErrNotImplemented sentinel that existing code may depend on - this is a public API break not mentioned in the issue context",
"kind": "suggestion"
},
{
"file": "internal/verify/wasm.go",
"line": 1,
"issue": "New file wasm.go added with WebAssembly decoder - consider whether this should have its own package or tests beyond the integration tests in symbolic_test.go",
"kind": "suggestion"
}
],
"merge_risk": "high",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
SummaryComplete symbolic execution engine implementation with comprehensive tests and proper safety guards Severitynone Blocking findings
Verdict✅ Approved Merge risklow Audit
{
"approved": true,
"severity": "none",
"summary": "Complete symbolic execution engine implementation with comprehensive tests and proper safety guards",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 697,
"issue": "Solver unavailable scenario assumes feasibility without model; could produce infeasible paths in production, documented as intentional fallback behavior",
"kind": "suggestion"
},
{
"file": "internal/verify/symbolic.go",
"line": 93,
"issue": "defaultSymbolicSolver variable has concurrency warning in comment but no actual synchronization mechanism; relies on caller not mutating concurrently",
"kind": "suggestion"
}
],
"merge_risk": "low",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryPR references undefined types (Solver interface, Result struct, Z3Solver) that will cause compilation errors Severityhigh Blocking findings
Verdict❌ Rejected Merge riskhigh Audit
{
"approved": false,
"severity": "high",
"summary": "PR references undefined types (Solver interface, Result struct, Z3Solver) that will cause compilation errors",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 96,
"issue": "References undefined type 'Solver' - interface is not defined in the diff, will cause compile error",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 96,
"issue": "References undefined type 'Z3Solver' - struct is not defined in the diff, will cause compile error",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 120,
"issue": "Function signature references undefined 'Solver' interface",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 843,
"issue": "References undefined type 'Result' - return type from solver.Solve() is not defined in the diff",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic_test.go",
"line": 225,
"issue": "Uses undefined 'Result' type in capturingSolver struct",
"kind": "blocker"
}
],
"merge_risk": "high",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
SummaryThis PR implements a comprehensive symbolic execution engine for WebAssembly with proper path explosion guards, context cancellation support, and extensive test coverage. Severitynone Blocking findingsNone. Verdict✅ Approved Merge risklow Audit
{
"approved": true,
"severity": "none",
"summary": "This PR implements a comprehensive symbolic execution engine for WebAssembly with proper path explosion guards, context cancellation support, and extensive test coverage.",
"findings": [],
"merge_risk": "low",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryWell-implemented symbolic execution engine with comprehensive test coverage and proper safety guards Severitynone Blocking findingsNone. Verdict✅ Approved Merge risklow Audit
{
"approved": true,
"severity": "none",
"summary": "Well-implemented symbolic execution engine with comprehensive test coverage and proper safety guards",
"findings": [],
"merge_risk": "low",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 2
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryCompilation blockers: undefined Solver interface/Z3Solver type, plus indentation bug preventing slice copy in ExplorePaths Severityhigh Blocking findings
Verdict❌ Rejected Merge riskhigh Audit
{
"approved": false,
"severity": "high",
"summary": "Compilation blockers: undefined Solver interface/Z3Solver type, plus indentation bug preventing slice copy in ExplorePaths",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 94,
"issue": "defaultSymbolicSolver declares type Solver (interface) and Z3Solver, but neither is defined in this diff. Solver is used as a parameter type at line 120 and its Solve method is called at line 178. Without definitions, this code will not compile.",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 103,
"issue": "for loop body has incorrect indentation - the statement 'paths[i] = PathResult(p)' is not indented, so it's outside the loop body. The loop does nothing and paths remains an empty slice. This is a logic bug causing incorrect function behavior.",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 248,
"issue": "toConcrete function accepts float64 and checks if it's integral, but the conversion from float64 to int64 then int32 may overflow. A very large JSON number like 1e20 would pass the integral check but truncate/overflow silently. Consider validating the range fits in int32.",
"kind": "suggestion"
},
{
"file": "internal/verify/symbolic.go",
"line": 620,
"issue": "branchTo manipulates stack based on target.arity but only checks 'if len(s.stack) \u003e= target.arity' before slicing. When false, it sets s.stack to empty but continues. This could lead to incorrect stack state on paths where arity exceeds stack depth. Should return an error instead.",
"kind": "suggestion"
}
],
"merge_risk": "high",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
SummaryImplements Milestone 3 symbolic execution engine with comprehensive path exploration, SMT-LIB v2 constraint generation, and Z3 solver integration Severitymedium Blocking findings
Verdict✅ Approved Merge riskmedium Audit
{
"approved": true,
"severity": "medium",
"summary": "Implements Milestone 3 symbolic execution engine with comprehensive path exploration, SMT-LIB v2 constraint generation, and Z3 solver integration",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 597,
"issue": "Solver errors are silently treated as feasible (returns nil, true) rather than propagating failure context; this may hide solver misconfigurations",
"kind": "suggestion"
},
{
"file": "internal/verify/symbolic.go",
"line": 271,
"issue": "Hardcoded symbolic variable names argN may collide with user-provided identifiers if arg binding is extended",
"kind": "suggestion"
}
],
"merge_risk": "medium",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryImplements complete symbolic execution engine with comprehensive tests, no blockers found Severitynone Blocking findingsNone. Verdict✅ Approved Merge risklow Audit
{
"approved": true,
"severity": "none",
"summary": "Implements complete symbolic execution engine with comprehensive tests, no blockers found",
"findings": [],
"merge_risk": "low",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 2
} |
Contributor
Author
|
Merge gate failed: |
Contributor
Author
SummaryMissing type definitions for Solver interface and Z3Solver implementation cause compilation failure Severityhigh Blocking findings
Verdict❌ Rejected Merge riskhigh Audit
{
"approved": false,
"severity": "high",
"summary": "Missing type definitions for Solver interface and Z3Solver implementation cause compilation failure",
"findings": [
{
"file": "internal/verify/symbolic.go",
"line": 102,
"issue": "var defaultSymbolicSolver Solver = \u0026Z3Solver{} references undefined types Solver and Z3Solver - these types are not defined in the diff and will cause compilation failure if they don't exist elsewhere in the codebase",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 120,
"issue": "runWithSolver function parameter 'solver Solver' references undefined Solver interface",
"kind": "blocker"
},
{
"file": "internal/verify/symbolic.go",
"line": 719,
"issue": "solvePath function calls solver.Solve() but Solver interface type is not defined in this diff",
"kind": "blocker"
}
],
"merge_risk": "high",
"Model": "opus",
"model": "claude-cli",
"effort": "high",
"tokens": {
"input_tokens": 0,
"output_tokens": 0
},
"same_verdict_count": 1
} |
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Fixes #246
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