2c8ee4f29c
This PR simplifies the interface between the `grind` core and the cutsat procedure. Before this PR, core would try to minimize the number of numeric literals that have to be internalized in cutsat. This optimization was buggy (see `grind_cutsat_zero.lean` test), and produced counterintuitive counterexamples.
85 lines
1.4 KiB
Text
85 lines
1.4 KiB
Text
set_option grind.warning false
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reset_grind_attrs%
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attribute [grind] List.map_append
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def a := 10
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example : a = 5 + 5 := by
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grind [a]
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/--
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error: `grind` failed
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case grind
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h : ¬a = 10
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⊢ False
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[grind] Goal diagnostics
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[facts] Asserted facts
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[prop] ¬a = 10
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[eqc] False propositions
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[prop] a = 10
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[cutsat] Assignment satisfying linear constraints
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[assign] a := 1
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-/
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#guard_msgs (error) in
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example : a = 5 + 5 := by
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grind
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section
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attribute [local grind] a
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example : a = 5 + 5 := by
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grind
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end
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def f (x : Nat) := x + 1
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theorem fa : f a = 11 := rfl
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example : f a = 10 + 1 := by
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grind [fa]
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/--
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error: `grind` failed
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case grind
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h : ¬f a = 11
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⊢ False
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[grind] Goal diagnostics
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[facts] Asserted facts
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[prop] ¬f a = 11
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[eqc] False propositions
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[prop] f a = 11
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[cutsat] Assignment satisfying linear constraints
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[assign] a := 2
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[assign] f a := 1
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-/
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#guard_msgs (error) in
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example : f a = 10 + 1 := by
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grind
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attribute [grind] fa
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example : f a = 10 + 1 := by
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grind
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/--
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error: `grind` failed
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case grind
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x : Nat
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h : ¬f x = 11
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⊢ False
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[grind] Goal diagnostics
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[facts] Asserted facts
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[prop] ¬f x = 11
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[eqc] False propositions
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[prop] f x = 11
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[ematch] E-matching patterns
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[thm] fa: [f `[a]]
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[cutsat] Assignment satisfying linear constraints
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[assign] x := 3
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[assign] a := 2
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[assign] f x := 1
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-/
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#guard_msgs (error) in
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example : f x = 10 + 1 := by
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grind
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