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Proof step 50 from proof validrefs-put-badclassfield-01 (previous step)

acc = r1 + refs, r1 = st[r -- i '] .refval, st[r0 -- _type] .type = mkclasstype(class), is_array(str, r, st), 0 < st[r -- _length] .intval, 0 ≤ i, validrefs(str, acc, st[r -- _type] .type .type, st), is_referencevalue(st[r -- i ']), i < st[r -- _length] .intval, st[r -- _type] .type ≤ ty, is_arraytype(st[r -- _type] .type), junkref(str, r1, st) ⊦ r = r0, acc = [], fs ' = _type, r = jvmref, validrefs(str, acc, st[r -- _type] .type .type, st[r0 -- fs ', val]), r ∈ acc .butlast, dups(acc .butlast), junkref(str, r, st[r0 -- fs ', val]), junkref(str, r, st), fs ' ∈ instfields(class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 49:
st[r0 -- _type] .type = mkclasstype(class), is_referencevalue(st[r -- i ']), i < st[r -- _length] .intval, st[r -- _type] .type ≤ ty, is_arraytype(st[r -- _type] .type), junkref(str, st[r -- i '] .refval, st), is_array(str, r, st), 0 < st[r -- _length] .intval, 0 ≤ i, validrefs(str, st[r -- i '] .refval ' + refs, st[r -- _type] .type .type, st) ⊦ r = r0, fs ' = _type, r = jvmref, junkref(str, r, st[r0 -- fs ', val]), junkref(str, r, st), fs ' ∈ instfields(class), validrefs(str, st[r -- i '] .refval ' + refs, st[r -- _type] .type .type, st[r0 -- fs ', val]), r ∈ (st[r -- i '] .refval ' + refs) .butlast, dups((st[r -- i '] .refval ' + refs) .butlast)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ' + refs ≠ []], [CSIMPSEQ : ⊦ r + refs = r ' + refs])]]