Robert Allan JamesandClaude Sonnet 5
fe3169dac9
Covers the 9 self-contained words in string_words.c that operate purely on data_stack/memory with no dependency outside the existing model. Introduces vm_addr_ok_m, a literal transcription of the real C vm_addr_ok bounds check (src/vm.c:815-820) using VM_MEMORY_SIZE -- more precise than the sign-only check earlier memory words used -- and resolve_span, a shared helper for the auto-detect-counted-string pattern that recurs across six of this file's words. 16 words deliberately not modeled, in three groups (full reasoning in the theory header): (a) WORD/SPAN/TIB/>IN/SOURCE/QUERY/EXPECT depend on the lazily-allocated TIB input subsystem (vm->tib_buf via vm_input_ensure), which has no vm_state counterpart; QUERY/EXPECT also call fgets(stdin) directly, real I/O with no HOL formalization; (b) CONVERT/NUMBER/ENCLOSE depend on raw C-string scanning (strlen past a single vm_addr_ok-checked byte -- a genuine unbounded-read hazard, noted not chased) or strtol(); (c) S"/(s")/LITERAL/[LITERAL]/['] depend on the same compile-time/threaded-code machinery already out of scope from control_words.c. SEARCH is deferred despite being self-contained -- its nested substring search needs a bigger proof-engineering lift than the single-pass helpers used here. Third occurrence of the file-scope-static-instead-of-per-VM-field bug pattern noted (WORD's word_scratch_addr), matching control_words.c's cf_stack and dictionary_manipulation_words.c's state_variable -- not fixed, flagged for aggregation when raised to Bob. 29 theory files verify with zero errors. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
33 lines
953 B
Plaintext
33 lines
953 B
Plaintext
session "StarForth" = "HOL-Library" +
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description "Formal proofs of StarForth FORTH-79 primitive correctness and physics-loop invariants"
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theories [document = false]
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StarForth_Base
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StarForth_Q48_16
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StarForth_Stack_Words
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StarForth_Double_Words
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StarForth_Arithmetic_Words
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StarForth_Mixed_Arithmetic_Words
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StarForth_Logical_Words
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StarForth_Return_Stack_Words
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StarForth_Memory_Words
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StarForth_Dictionary_Words
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StarForth_Dictionary_Manipulation_Words
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StarForth_Control_Words
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StarForth_String_Words
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StarForth_Mutex
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StarForth_Transition
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StarForth_Loop1_Heat
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StarForth_Loop2_Window
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StarForth_Loop3_Decay
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StarForth_Loop4_Pipeline
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StarForth_Loop5_WinInf
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StarForth_Loop6_DecayInf
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StarForth_Loop7_Heartrate
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StarForth_Concurrent
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StarForth_Correctness
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ACL_Pin_Monotone
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ACL_Inherit_Clears_Pin
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ACL_TTL_Bounded
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ACL_Emergency_Bypass
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ACL_No_Escalation
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