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Proof step 13 from proof read-loop-inv (previous step)

VFS_PAGE_SIZE = n4 + (n0 + n3) % VFS_PAGE_SIZE, buf = mkbuf(VFS_PAGE_SIZE), err = ESUCCESS, n0 + n3 < m2, n0 + n3 < n1, read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf1, n3, dirs, files), read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf3, n2, dirs, files), (n0 + n3) % VFS_PAGE_SIZE ≤ VFS_PAGE_SIZE ⊦ [afs_readpage#(mkinode(m, md, boolvar, m0, m1, m2), (n0 + n3) / VFS_PAGE_SIZE, dirs, files, asynced; buf, err); n := min(n1 - n0 + n3, n4, m2 - n0 + n3); if err = ESUCCESS then {buf1 := copy(buf, (n0 + n3) % VFS_PAGE_SIZE, buf1, n3, n); n3 := n3 + n}] read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf1, n3, dirs, files), m2 = n0 + n3, n1 = n0 + n3, n4 = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
VFS_PAGE_SIZE = n4 + (n0 + n3) % VFS_PAGE_SIZE, buf = mkbuf(VFS_PAGE_SIZE), err = ESUCCESS, m2 ≠ n0 + n3, n1 ≠ n0 + n3, n4 ≠ 0, n0 + n3 < n1, n0 + n3 < m2, read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf3, n2, dirs, files), read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf1, n3, dirs, files) ⊦ [afs_readpage#(mkinode(m, md, boolvar, m0, m1, m2), (n0 + n3) / VFS_PAGE_SIZE, dirs, files, asynced; buf, err); n := min(n1 - n0 + n3, n4, m2 - n0 + n3); if err = ESUCCESS then {buf1 := copy(buf, (n0 + n3) % VFS_PAGE_SIZE, buf1, n3, n); n3 := n3 + n}] read-inv(n0, n1, mkinode(m, md, boolvar, m0, m1, m2), buf2, buf1, n3, dirs, files)

Rule argument

Additional information

Used simplifier rules: n ≠ 0 ⊦ m % n ≤ n; (s)% ⊦ VFS_PAGE_SIZE ≠ 0; (s)