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Proof step 5 from proof eq-io-truncate (previous step)

⟨let pageno0 = 0, pageno = 0 in afs_truncate_internal#(n, pageno1; inode, buf-opt, pageno0, pageno, boolvar, err, dirs, files; asynced)⟩ (buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar ↔ boolvar0) ∧ err = err0 ∧ dirs = dirs0 ∧ files = files0 ∧ (asynced ↔ asynced0)), dirs = dirs1, files = files1, n = n0, pageno1 = pageno0, pre-truncate(inode, n, pageno1, buf-opt, dirs, files) ⊦ ⟨afs_truncate#(n0, pageno0; buf-opt, inode, boolvar, err, dirs1, files1, boolvar2)⟩ (buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar ↔ boolvar0) ∧ err = err0 ∧ dirs1 = dirs0 ∧ files1 = files0)

Heuristic symbolic execution applied rule let left

And obtained the following new goals

Proof step 6:
⟨afs_truncate_internal#(n, pageno1; inode, buf-opt, pageno0, pageno, boolvar, err, dirs, files; asynced)⟩ (buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar ↔ boolvar0) ∧ err = err0 ∧ dirs = dirs0 ∧ files = files0 ∧ (asynced ↔ asynced0)), dirs = dirs1, files = files1, n = n0, pageno = 0, pageno0 = 0, pageno1 = pageno3, pre-truncate(inode, n, pageno1, buf-opt, dirs, files) ⊦ ⟨afs_truncate#(n0, pageno3; buf-opt, inode, boolvar, err, dirs1, files1, boolvar2)⟩ (buf-opt = buf-opt0 ∧ inode = p_inode ∧ (boolvar ↔ boolvar0) ∧ err = err0 ∧ dirs1 = dirs0 ∧ files1 = files0)

Proof step 5 from proof eq-io-truncate (previous step)

Heuristic symbolic execution applied rule let left

And obtained the following new goals

Rule argument

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