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refactor(rt): make projection traversal total #1073

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f396abc
refactor(rt): make projection traversal total
Stevengre Apr 21, 2026
7453d8f
test(integration): skip nonterminating symbolic proofs
Stevengre Apr 21, 2026
8dc3edb
test(integration): update expected outputs
Stevengre Apr 21, 2026
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740 changes: 424 additions & 316 deletions kmir/src/kmir/kdist/mir-semantics/rt/data.md
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4 changes: 2 additions & 2 deletions kmir/src/tests/integration/data/crate-tests/single-bin/single_exe::a_module::twice.expected
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Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (44 steps)
│ (43 steps)
├─ 3 (split)
│ #expect ( BoolVal ( notBool ARG_UINT1:Int +Int ARG_UINT1:Int &Int 18446744073709
┃
Expand All @@ -25,7 +25,7 @@
├─ 5
│ #expect ( BoolVal ( notBool ARG_UINT1:Int +Int ARG_UINT1:Int &Int 18446744073709
│
│ (21 steps)
│ (20 steps)
├─ 7 (terminal)
│ #EndProgram ~> .K
│
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2 changes: 1 addition & 1 deletion kmir/src/tests/integration/data/crate-tests/single-bin/single_exe::main.expected
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (228 steps)
│ (218 steps)
├─ 3 (terminal)
│ #EndProgram ~> .K
│
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4 changes: 2 additions & 2 deletions kmir/src/tests/integration/data/crate-tests/single-dylib/small_test_dylib::add.expected
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (35 steps)
│ (34 steps)
├─ 3 (split)
│ #expect ( BoolVal ( notBool ARG_UINT1:Int +Int ARG_UINT2:Int &Int 18446744073709
┃
Expand All @@ -25,7 +25,7 @@
├─ 5
│ #expect ( BoolVal ( notBool ARG_UINT1:Int +Int ARG_UINT2:Int &Int 18446744073709
│
│ (16 steps)
│ (15 steps)
├─ 7 (terminal)
│ #EndProgram ~> .K
│
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4 changes: 2 additions & 2 deletions ...tegration/data/crate-tests/single-lib/small_test_lib::testing::test_add_in_range.expected
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (114 steps)
│ (112 steps)
├─ 3 (split)
│ #selectBlock ( switchTargets ( ... branches: branch ( 0 , basicBlockIdx ( 1 ) )
┃
Expand All @@ -25,7 +25,7 @@
├─ 5
│ #selectBlock ( switchTargets ( ... branches: branch ( 0 , basicBlockIdx ( 1 ) )
│
│ (182 steps)
│ (174 steps)
├─ 7 (terminal)
│ #EndProgram ~> .K
│
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2 changes: 1 addition & 1 deletion kmir/src/tests/integration/data/crate-tests/two-crate-bin/crate2::main.expected
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (737 steps)
│ (713 steps)
├─ 3 (terminal)
│ #EndProgram ~> .K
│
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2 changes: 1 addition & 1 deletion .../src/tests/integration/data/crate-tests/two-crate-dylib/crate2::test_crate1_with.expected
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
┌─ 1 (root, init)
│ #execTerminator ( terminator ( ... kind: terminatorKindCall ( ... func: operandC
│
│ (216 steps)
│ (212 steps)
├─ 3 (terminal)
│ #EndProgram ~> .K
│
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2 changes: 1 addition & 1 deletion kmir/src/tests/integration/data/exec-smir/allocs/enum-two-refs-fail.state
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@@ -1,6 +1,6 @@
<kmir>
<k>
#traverseProjection ( toLocal ( 13 ) , thunk ( #decodeConstant ( constantKindAllocated ( allocation (... bytes: b"\x00\x00\x00\x00\x00\x00\x00\x00" , provenance: provenanceMap (... ptrs: provenanceMapEntry (... offset: 0 , allocId: allocId ( 1 ) ) .ProvenanceMapEntries ) , align: align ( 8 ) , mutability: mutabilityMut ) ) , ty ( 25 ) , typeInfoRefType ( ty ( 109 ) ) ) ) , projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 0 ) , ty ( 37 ) ) .ProjectionElems , .Contexts ) ~> #forRef ( mutabilityNot , metadata ( noMetadataSize , 0 , noMetadataSize ) ) ~> #freezer#setLocalValue(_,_)_RT-DATA_KItem_Place_Evaluation1_ ( place (... local: local ( 4 ) , projection: .ProjectionElems ) ~> .K ) ~> #execStmts ( statement (... kind: statementKindAssign (... place: place (... local: local ( 14 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 0 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 5 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 14 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 1 ) , ty ( 45 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 15 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 1 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 6 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 15 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 0 ) , ty ( 37 ) ) .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 16 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 1 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 7 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 16 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 1 ) , ty ( 45 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 9 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 4 ) , projection: .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 10 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 6 ) , projection: .ProjectionElems ) ) ) , span: span ( 145 ) ) .Statements ) ~> #execTerminator ( terminator (... kind: terminatorKindCall (... func: operandConstant ( constOperand (... span: span ( 145 ) , userTy: noUserTypeAnnotationIndex , const: mirConst (... kind: constantKindZeroSized , ty: ty ( 93 ) , id: mirConstId ( 47 ) ) ) ) , args: operandMove ( place (... local: local ( 9 ) , projection: .ProjectionElems ) ) operandMove ( place (... local: local ( 10 ) , projection: .ProjectionElems ) ) .Operands , destination: place (... local: local ( 8 ) , projection: .ProjectionElems ) , target: someBasicBlockIdx ( basicBlockIdx ( 1 ) ) , unwind: unwindActionContinue ) , span: span ( 145 ) ) ) ~> .K
#projectionError ~> #forRef ( mutabilityNot , metadata ( noMetadataSize , 0 , noMetadataSize ) ) ~> #freezer#setLocalValue(_,_)_RT-DATA_KItem_Place_Evaluation1_ ( place (... local: local ( 4 ) , projection: .ProjectionElems ) ~> .K ) ~> #execStmts ( statement (... kind: statementKindAssign (... place: place (... local: local ( 14 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 0 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 5 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 14 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 1 ) , ty ( 45 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 15 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 1 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 6 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 15 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 0 ) , ty ( 37 ) ) .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 16 ) , projection: .ProjectionElems ) , rvalue: rvalueCopyForDeref ( place (... local: local ( 3 ) , projection: projectionElemField ( fieldIdx ( 1 ) , ty ( 25 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 7 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 16 ) , projection: projectionElemDeref projectionElemDowncast ( variantIdx ( 0 ) ) projectionElemField ( fieldIdx ( 1 ) , ty ( 45 ) ) .ProjectionElems ) ) ) , span: span ( 147 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 9 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 4 ) , projection: .ProjectionElems ) ) ) , span: span ( 145 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 10 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 6 ) , projection: .ProjectionElems ) ) ) , span: span ( 145 ) ) .Statements ) ~> #execTerminator ( terminator (... kind: terminatorKindCall (... func: operandConstant ( constOperand (... span: span ( 145 ) , userTy: noUserTypeAnnotationIndex , const: mirConst (... kind: constantKindZeroSized , ty: ty ( 93 ) , id: mirConstId ( 47 ) ) ) ) , args: operandMove ( place (... local: local ( 9 ) , projection: .ProjectionElems ) ) operandMove ( place (... local: local ( 10 ) , projection: .ProjectionElems ) ) .Operands , destination: place (... local: local ( 8 ) , projection: .ProjectionElems ) , target: someBasicBlockIdx ( basicBlockIdx ( 1 ) ) , unwind: unwindActionContinue ) , span: span ( 145 ) ) ) ~> .K
</k>
<retVal>
noReturn
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5 changes: 1 addition & 4 deletions kmir/src/tests/integration/data/exec-smir/pointers/pointer-cast-length-test-fail.state
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@@ -1,9 +1,6 @@
<kmir>
<k>
#traverseProjection ( toLocal ( 5 ) , Range ( ListItem ( Integer ( 42 , 8 , false ) )
ListItem ( Integer ( 42 , 8 , false ) )
ListItem ( Integer ( 42 , 8 , false ) )
ListItem ( Integer ( 42 , 8 , false ) ) ) , .ProjectionElems , .Contexts ) ~> #derefTruncate ( staticSize ( 9 ) , .ProjectionElems ) ~> #readProjection ( false ) ~> #freezer#setLocalValue(_,_)_RT-DATA_KItem_Place_Evaluation1_ ( place (... local: local ( 23 ) , projection: .ProjectionElems ) ~> .K ) ~> #execStmts ( statement (... kind: statementKindAssign (... place: place (... local: local ( 28 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 23 ) , projection: .ProjectionElems ) ) ) , span: span ( 97 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 27 ) , projection: .ProjectionElems ) , rvalue: rvalueCast ( castKindPointerCoercion ( pointerCoercionUnsize ) , operandMove ( place (... local: local ( 28 ) , projection: .ProjectionElems ) ) , ty ( 26 ) ) ) , span: span ( 97 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 26 ) , projection: .ProjectionElems ) , rvalue: rvalueUnaryOp ( unOpPtrMetadata , operandMove ( place (... local: local ( 27 ) , projection: .ProjectionElems ) ) ) ) , span: span ( 98 ) ) .Statements ) ~> #execTerminator ( terminator (... kind: terminatorKindSwitchInt (... discr: operandMove ( place (... local: local ( 26 ) , projection: .ProjectionElems ) ) , targets: switchTargets (... branches: branch ( 9 , basicBlockIdx ( 11 ) ) .Branches , otherwise: basicBlockIdx ( 12 ) ) ) , span: span ( 94 ) ) ) ~> .K
#projectionError ~> #readProjection ( false ) ~> #freezer#setLocalValue(_,_)_RT-DATA_KItem_Place_Evaluation1_ ( place (... local: local ( 23 ) , projection: .ProjectionElems ) ~> .K ) ~> #execStmts ( statement (... kind: statementKindAssign (... place: place (... local: local ( 28 ) , projection: .ProjectionElems ) , rvalue: rvalueRef ( region (... kind: regionKindReErased ) , borrowKindShared , place (... local: local ( 23 ) , projection: .ProjectionElems ) ) ) , span: span ( 97 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 27 ) , projection: .ProjectionElems ) , rvalue: rvalueCast ( castKindPointerCoercion ( pointerCoercionUnsize ) , operandMove ( place (... local: local ( 28 ) , projection: .ProjectionElems ) ) , ty ( 26 ) ) ) , span: span ( 97 ) ) statement (... kind: statementKindAssign (... place: place (... local: local ( 26 ) , projection: .ProjectionElems ) , rvalue: rvalueUnaryOp ( unOpPtrMetadata , operandMove ( place (... local: local ( 27 ) , projection: .ProjectionElems ) ) ) ) , span: span ( 98 ) ) .Statements ) ~> #execTerminator ( terminator (... kind: terminatorKindSwitchInt (... discr: operandMove ( place (... local: local ( 26 ) , projection: .ProjectionElems ) ) , targets: switchTargets (... branches: branch ( 9 , basicBlockIdx ( 11 ) ) .Branches , otherwise: basicBlockIdx ( 12 ) ) ) , span: span ( 94 ) ) ) ~> .K
</k>
<retVal>
noReturn
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