try_for_heap.lean:44:3: error: try_for tactic failed, timeout state: h₁ h₂ : heap, x₁ x₂ x₃ x₄ : ptr, v₁ v₂ v₃ : val, hcomm : ∀ (x y : heap), x∙y = y∙x, hassoc : ∀ (x y z : heap), x∙y∙z = x∙(y∙z), hnoalias : ∀ (h : heap) (y₁ y₂ : ptr) (w₁ w₂ : val), is_def (h∙y₁↣w₁∙y₂↣w₂) → y₁ ≠ y₂ ⊢ is_def (h₁∙(x₁↣v₁∙x₂↣v₂)∙h₂∙x₃↣v₃) → x₁ ≠ x₃ ∧ x₁ ≠ x₂ ∧ x₂ ≠ x₃