Negative coverage: prove_wc / forall / premise prove_wc(decls, env, assumptions, p1) => c
Premise at line 37. Observed failure causes: failed_judgment.
forall| Line | Coverage | Source |
|---|---|---|
| 35 | N/A | (let (env, subst) = env.universal_substitution(binder)) |
| 36 | N/A | (let p1 = binder.instantiate_with(&subst).unwrap()) |
| 37 | 8 | (prove_wc(decls, env, assumptions, p1) => c) |
| ──────── ("forall") | ||
| 39 | 12 | (prove_wc(decls, env, assumptions, WcData::ForAll(binder)) => c.pop_subst(&subst)) |
8 tests failed proving this premise:
Source location: crates/formality-rust/src/prove/prove/test/eq_assumptions.rs:41
#[test]
fn test_normalize_assoc_ty_existential0() {
test_prove(
Program::empty(),
term("exists<A> {} => {for<T> if { <T as Iterator>::Item = u32 } <A as Iterator>::Item = u32}"),
).assert_err(
expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: <?ty_0 as Iterator>::Item = u32, via: <!ty_1 as Iterator>::Item = u32, assumptions: {<!ty_1 as Iterator>::Item = u32}, env: Env { variables: [?ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_1)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_1)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "normalize-via-impl" at (prove_normalize.rs) failed because
expression evaluated to an empty collection: `decls.alias_eq_decls(&a.name)`
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: <!ty_0 as Iterator>::Item = <?ty_1 as Iterator>::Item, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: !ty_0 = ?ty_1, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: ?ty_1, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: u32 = <?ty_1 as Iterator>::Item, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "normalize-via-impl" at (prove_normalize.rs) failed because
expression evaluated to an empty collection: `decls.alias_eq_decls(&a.name)`
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: ?ty_1 = !ty_0, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: ?ty_1, via: <!ty_0 as Iterator>::Item = u32, assumptions: {<!ty_0 as Iterator>::Item = u32}, env: Env { variables: [?ty_1, !ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_0)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
the rule "normalize-via-impl" at (prove_normalize.rs) failed because
expression evaluated to an empty collection: `decls.alias_eq_decls(&a.name)`"#]]);
}Failed proof tree
prove failedtest_util.rs:60ruletest_util.rs:60prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "implies"prove_wc.rs:43prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55rule "axiom-l"prove_normalize.rs:96prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-via-impl"prove_normalize.rs:39 (failed: empty_collection)
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:71prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "alias"prove_eq.rs:58prove failedprove_eq.rs:58ruleprove_eq.rs:58prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "existential"prove_eq.rs:64prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "normalize-l"prove_eq.rs:71prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55rule "axiom-l"prove_normalize.rs:96prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-via-impl"prove_normalize.rs:39 (failed: empty_collection)
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "alias"prove_eq.rs:58prove failedprove_eq.rs:58ruleprove_eq.rs:58prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "existential"prove_eq.rs:64prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55rule "axiom-l"prove_normalize.rs:96prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "symmetric"prove_normalize.rs:146prove_syntactically_eq failedprove_normalize.rs:133rule "alias"prove_normalize.rs:164prove_syntactically_eq failedprove_normalize.rs:133rule "existential-nonvar"prove_normalize.rs:170prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-via-impl"prove_normalize.rs:39 (failed: empty_collection)
Source location: crates/formality-rust/src/prove/prove/test/eq_partial_eq.rs:33
#[test]
fn not_partial_eq_implies_eq() {
let goal: Wc = term("for<T> if {PartialEq(T)} Eq(T)");
prove(decls(), (), (), goal)
.assert_err(
expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Eq(!ty_1), via: PartialEq(!ty_1), assumptions: {PartialEq(!ty_1)}, env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Eq(!ty_1), via: PartialEq(?ty_2), assumptions: {PartialEq(!ty_1)}, env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);
}Failed proof tree
prove failedeq_partial_eq.rs:32ruleeq_partial_eq.rs:32prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "implies"prove_wc.rs:43prove_wc failedprove_wc.rs:23rule "assumption - predicate"prove_wc.rs:50prove_via failedprove_via.rs:9
rule "trait implied bound"prove_wc.rs:120prove_via failedprove_via.rs:9
Source location: crates/formality-rust/src/prove/prove/test/eq_partial_eq.rs:44
#[test]
fn universals_not_eq() {
let goal: Wc = term("for<T, U> if {Eq(T)} PartialEq(U)");
prove(decls(), (), (), goal)
.assert_err(
expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: PartialEq(!ty_2), via: Eq(!ty_1), assumptions: {Eq(!ty_1)}, env: Env { variables: [!ty_1, !ty_2], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: !ty_0 = !ty_1, via: Eq(!ty_0), assumptions: {Eq(!ty_0)}, env: Env { variables: [!ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Eq(!ty_0), assumptions: {Eq(!ty_0)}, env: Env { variables: [!ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: !ty_1, via: Eq(!ty_0), assumptions: {Eq(!ty_0)}, env: Env { variables: [!ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Eq(!ty_1), via: PartialEq(?ty_2), assumptions: {Eq(!ty_0)}, env: Env { variables: [!ty_0, !ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);
}Failed proof tree
prove failedeq_partial_eq.rs:43ruleeq_partial_eq.rs:43prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "implies"prove_wc.rs:43prove_wc failedprove_wc.rs:23rule "assumption - predicate"prove_wc.rs:50prove_via failedprove_via.rs:9
rule "trait implied bound"prove_wc.rs:121prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - predicate"prove_wc.rs:50prove_via failedprove_via.rs:9rule "predicate-congruence-axiom"prove_via.rs:31prove failedprove_via.rs:31ruleprove_via.rs:31prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "trait implied bound"prove_wc.rs:120prove_via failedprove_via.rs:9
Source location: crates/formality-rust/src/prove/prove/test/is_local.rs:11
#[test]
fn test_forall_not_local() {
test_prove(Program::empty(), term("{} => {for<T> @IsLocal(Debug(T))}")).assert_err(expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:19:1: no applicable rules for prove_normalize { p: !ty_1, assumptions: {}, env: Env { variables: [!ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "local trait" at (is_local.rs) failed because
condition evaluated to false: `decls.is_local_trait_id(&goal.trait_id)`
decls = program([], 222)
&goal.trait_id = Debug"#]]);
}Failed proof tree
prove failedtest_util.rs:60ruletest_util.rs:60prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "trait ref is local"prove_wc.rs:148is_local_trait_ref failedis_local.rs:201rule "local parameter"is_local.rs:219is_local_parameter failedis_local.rs:279rule "local parameter"is_local.rs:291prove_normalize failedprove_normalize.rs:19
rule "local trait"is_local.rs:211 (failed: if_false)
Source location: crates/formality-rust/src/prove/prove/test/magic_copy.rs:25
#[test]
fn all_t_not_magic() {
test_prove(decls(), term("{} => {for<T> Magic(T)}")).assert_err(
expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: !ty_0 = u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Magic(!ty_0), via: Copy(?ty_1), assumptions: {}, env: Env { variables: [!ty_0, ?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Magic(!ty_1), via: Copy(?ty_2), assumptions: {}, env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);
}Failed proof tree
prove failedtest_util.rs:60ruletest_util.rs:60prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "positive impl"prove_wc.rs:88prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "positive impl"prove_wc.rs:81prove failedprove_wc.rs:81ruleprove_wc.rs:81prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "trait implied bound"prove_wc.rs:121prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "trait implied bound"prove_wc.rs:120prove_via failedprove_via.rs:9
rule "trait implied bound"prove_wc.rs:120prove_via failedprove_via.rs:9
Source location: crates/formality-rust/src/prove/prove/test/magic_copy.rs:40
#[test]
fn all_t_not_copy() {
test_prove(decls(), term("{} => {for<T> Copy(T)}")).assert_err(
expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: !ty_0 = u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: !ty_0 = u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: !ty_0, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:55:1: no applicable rules for prove_normalize_via { goal: u32, via: Copy(!ty_0), assumptions: {Copy(!ty_0)}, env: Env { variables: [!ty_0], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: Magic(!ty_0), via: Copy(?ty_1), assumptions: {}, env: Env { variables: [!ty_0, ?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);
}Failed proof tree
prove failedtest_util.rs:60ruletest_util.rs:60prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "positive impl"prove_wc.rs:81prove failedprove_wc.rs:81ruleprove_wc.rs:81prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "trait implied bound"prove_wc.rs:121prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "positive impl"prove_wc.rs:88prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "positive impl"prove_wc.rs:81prove failedprove_wc.rs:81ruleprove_wc.rs:81prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - relation"prove_wc.rs:56prove_via failedprove_via.rs:9
rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19rule "normalize-via-assumption"prove_normalize.rs:33prove_normalize_via failedprove_normalize.rs:55
rule "trait implied bound"prove_wc.rs:120prove_via failedprove_via.rs:9
Source location: crates/formality-rust/src/prove/prove/test/universes.rs:14
#[test]
fn exists_u_for_t() {
let decls = Program::empty();
test_prove(decls, term("exists<U> {} => {for<T> T = U}")).assert_err(expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:19:1: no applicable rules for prove_normalize { p: !ty_1, assumptions: {}, env: Env { variables: [?ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "existential-nonvar" at (prove_eq.rs) failed because
pattern `None` did not match value `Some(!ty_1)`
the rule "existential-universal" at (prove_eq.rs) failed because
condition evaluated to false: `env.universe(p) < env.universe(v)`
crates/formality-rust/src/prove/prove/prove/prove_normalize.rs:19:1: no applicable rules for prove_normalize { p: ?ty_0, assumptions: {}, env: Env { variables: [?ty_0, !ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);
}Failed proof tree
prove failedtest_util.rs:60ruletest_util.rs:60prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "eq"prove_wc.rs:127prove_eq failedprove_eq.rs:25rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19
rule "symmetric"prove_eq.rs:40prove_eq failedprove_eq.rs:25rule "existential"prove_eq.rs:64prove_existential_var_eq failedprove_eq.rs:78rule "existential-nonvar"prove_eq.rs:96 (failed: if_let)rule "existential-universal"prove_eq.rs:142 (failed: if_false)
rule "normalize-l"prove_eq.rs:70prove_normalize failedprove_normalize.rs:19
Source location: tests/basic_tests.rs:85
#[test]
fn basic_where_clauses_fail() {
FormalityTest::new(crates![crate core {
#![feature(non_lifetime_binders)]
trait A<T> where T: B { }
trait B { }
trait WellFormed where for<T> u32: A<T> { }
}]).err(expect_test::expect![[r#"
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: @ WellFormedTraitRef(A(u32, !ty_1)), via: A(u32, ?ty_2), assumptions: {for <ty> A(u32, ^ty0_0)}, env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false } }
crates/formality-rust/src/prove/prove/prove/prove_via.rs:9:1: no applicable rules for prove_via { goal: B(!ty_0), via: A(u32, ?ty_1), assumptions: {for <ty> A(u32, ^ty0_0)}, env: Env { variables: [!ty_0, ?ty_1], bias: Soundness, pending: [], allow_pending_outlives: false } }
the rule "trait implied bound" at (prove_wc.rs) failed because
expression evaluated to an empty collection: `decls.trait_invariants()`"#]])
}Failed proof tree
check_all_crates failedmod.rs:41rule "check all prefixes"mod.rs:53check_crate failedmod.rs:60rule "check crate"mod.rs:73check_crate_item failedmod.rs:163rule "trait"mod.rs:172check_trait failedtraits.rs:9rule "check trait"traits.rs:23prove failedfunction.rs:250rulefunction.rs:250prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "forall"prove_wc.rs:37prove_wc failedprove_wc.rs:23rule "assumption - predicate"prove_wc.rs:50prove_via failedprove_via.rs:9rule "forall"prove_via.rs:50prove_via failedprove_via.rs:9
rule "trait well formed"prove_wc.rs:142prove_after failedprove_after.rs:8rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:11rule "some"prove_wc_list.rs:29prove_wc failedprove_wc.rs:23rule "assumption - predicate"prove_wc.rs:50prove_via failedprove_via.rs:9rule "forall"prove_via.rs:50prove_via failedprove_via.rs:9
rule "trait implied bound"prove_wc.rs:117 (failed: empty_collection)