7bea3c1508
Currently, the messages in the diagnostic summaries are created by appending interpolated strings. We wrap these in `.trace`'s, and the results are better formatted when expanding child nodes in the info view. Particularly, the latter diagnostic summaries remain on their own lines flush to the left instead of on the same line directly adjacent to the last child node.
114 lines
3.7 KiB
Text
114 lines
3.7 KiB
Text
opaque q : Nat → Nat
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def f (x : Nat) : Nat :=
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match x with
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| 0 => 1
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| x+1 => q (f x)
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theorem f_eq : f (x + 1) = q (f x) := rfl
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axiom q_eq (x : Nat) : q x = x
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/--
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info: [simp] used theorems (max: 50, num: 2):
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[simp] f_eq ↦ 50
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[simp] q_eq ↦ 50[simp] tried theorems (max: 101, num: 2):
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[simp] f_eq ↦ 101, succeeded: 50
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[simp] q_eq ↦ 50, succeeded: 50use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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-/
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#guard_msgs in
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example : f (x + 50) = f x := by
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set_option diagnostics true in
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simp [f_eq, q_eq]
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example : f (x + 50) = f x := by
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set_option diagnostics true in
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simp [f_eq, q_eq]
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def ack : Nat → Nat → Nat
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| 0, y => y+1
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| x+1, 0 => ack x 1
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| x+1, y+1 => ack x (ack (x+1) y)
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/--
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info: [simp] used theorems (max: 1201, num: 3):
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[simp] ack.eq_3 ↦ 1201
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[simp] Nat.reduceAdd (builtin simproc) ↦ 771
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[simp] ack.eq_1 ↦ 768[simp] tried theorems (max: 1973, num: 2):
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[simp] ack.eq_3 ↦ 1973, succeeded: 1201
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[simp] ack.eq_1 ↦ 768, succeeded: 768use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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---
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error: tactic 'simp' failed, nested error:
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maximum recursion depth has been reached
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use `set_option maxRecDepth <num>` to increase limit
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use `set_option diagnostics true` to get diagnostic information
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-/
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#guard_msgs in
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example : ack 4 4 = x := by
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set_option diagnostics true in
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simp [ack.eq_2, ack.eq_1, ack.eq_3]
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-- TODO: In the following test we just want to check whether we
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-- diagnostics for `simp` when there is a failure. However, the
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-- actual counters make the test very unstable since small
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-- changes to Lean affect heartbeat consumption, and consequently
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-- the number of rewrites tried.
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-- /--
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-- info: [simp] used theorems (max: 22, num: 5):
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-- ack.eq_3 ↦ 22
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-- ⏎
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-- Nat.reduceAdd (builtin simproc) ↦ 14
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-- ⏎
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-- ack.eq_1 ↦ 11
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-- ⏎
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-- ack.eq_2 ↦ 4
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-- ⏎
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-- Nat.zero_add ↦ 1[simp] tried theorems (max: 38, num: 4):
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-- ack.eq_3 ↦ 38, succeeded: 22
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-- ⏎
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-- ack.eq_1 ↦ 11, succeeded: 11
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-- ⏎
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-- ack.eq_2 ↦ 4, succeeded: 4
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-- ⏎
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-- Nat.zero_add ↦ 1, succeeded: 1[reduction] unfolded reducible declarations (max: 7, num: 1):
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-- outParam ↦ 7use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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-- ---
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-- error: tactic 'simp' failed, nested error:
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-- (deterministic) timeout at `whnf`, maximum number of heartbeats (500) has been reached
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-- use `set_option maxHeartbeats <num>` to set the limit
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-- use `set_option diagnostics true` to get diagnostic information
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-- -/
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-- #guard_msgs in
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-- set_option maxHeartbeats 500 in
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-- example : ack 4 4 = x := by
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-- set_option diagnostics true in
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-- set_option diagnostics.threshold 0 in
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-- simp [ack.eq_2, ack.eq_1, ack.eq_3]
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@[reducible] def h (x : Nat) :=
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match x with
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| 0 => 10
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| x + 1 => h x
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opaque q1 : Nat → Nat → Prop
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@[simp] axiom q1_ax (x : Nat) : q1 x 10
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/--
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info: [simp] used theorems (max: 1, num: 1):
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[simp] q1_ax ↦ 1[simp] tried theorems (max: 1, num: 1):
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[simp] q1_ax ↦ 1, succeeded: 1use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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---
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info: [reduction] unfolded declarations (max: 246, num: 2):
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[reduction] Nat.rec ↦ 246
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[reduction] OfNat.ofNat ↦ 24[reduction] unfolded reducible declarations (max: 246, num: 2):
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[reduction] h ↦ 246
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[reduction] Nat.casesOn ↦ 246use `set_option diagnostics.threshold <num>` to control threshold for reporting counters
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-/
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#guard_msgs in
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example : q1 x (h 40) := by
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set_option diagnostics true in
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set_option diagnostics.threshold 0 in
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simp
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example : q1 x (h 40) := by
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set_option diagnostics true in
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set_option diagnostics.threshold 0 in
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simp
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