Negative coverage: prove_wc / trait implied bound / premise prove_after(decls, c, assumptions, &ti.trait_ref) => c
Premise at line 119. Observed failure causes: failed_judgment.
trait implied bound| Line | Coverage | Source |
|---|---|---|
| 115 | 14 | (ti in decls.trait_invariants()) |
| 116 | N/A | (let (env, subst) = env.existential_substitution(&ti.binder)) |
| 117 | N/A | (let ti = ti.binder.instantiate_with(&subst).unwrap()) |
| 118 | 4 | (prove_via(decls, env, assumptions, &ti.where_clause, trait_ref) => c) |
| 119 | 3 | (prove_after(decls, c, assumptions, &ti.trait_ref) => c) |
| ──────── ("trait implied bound") | ||
| 121 | 1 | (prove_wc(decls, env, assumptions, Predicate::IsImplemented(trait_ref)) => c.pop_subst(&subst)) |
3 tests failed proving this premise:
Source location: crates/formality-rust/src/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_via.rs:8:1: 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_via.rs:8:1: 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_normalize.rs:56:1: 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_normalize.rs:56:1: 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_via.rs:8:1: 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:43args
ruleeq_partial_eq.rs:43prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "forall"prove_wc.rs:35prove_wc failedprove_wc.rs:21args
rule "implies"prove_wc.rs:41prove_wc failedprove_wc.rs:21args
rule "trait implied bound"prove_wc.rs:119prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - predicate"prove_wc.rs:48prove_via failedprove_via.rs:8args
rule "predicate-congruence-axiom"prove_via.rs:30prove failedprove_via.rs:30args
ruleprove_via.rs:30prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - relation"prove_wc.rs:54prove_via failedprove_via.rs:8args
rule "eq"prove_wc.rs:125prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "symmetric"prove_eq.rs:38prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "trait implied bound"prove_wc.rs:118prove_via failedprove_via.rs:8args
Source location: crates/formality-rust/src/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_via.rs:8:1: 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_normalize.rs:56:1: 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_normalize.rs:56:1: 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_via.rs:8:1: 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_via.rs:8:1: 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:57args
ruletest_util.rs:57prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "forall"prove_wc.rs:35prove_wc failedprove_wc.rs:21args
rule "positive impl"prove_wc.rs:86prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "trait implied bound"prove_wc.rs:119prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "trait implied bound"prove_wc.rs:118prove_via failedprove_via.rs:8args
Source location: crates/formality-rust/src/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_via.rs:8:1: 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_normalize.rs:56:1: 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_normalize.rs:56:1: 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_via.rs:8:1: 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_normalize.rs:56:1: 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_normalize.rs:56:1: 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_via.rs:8:1: 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:57args
ruletest_util.rs:57prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "forall"prove_wc.rs:35prove_wc failedprove_wc.rs:21args
rule "trait implied bound"prove_wc.rs:119prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "positive impl"prove_wc.rs:86prove_after failedprove_after.rs:8args
rule "prove_after"prove_after.rs:19prove failedprove_after.rs:19args
ruleprove_after.rs:19prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "positive impl"prove_wc.rs:79prove failedprove_wc.rs:79args
ruleprove_wc.rs:79prove_wc_list failedprove_wc_list.rs:8args
rule "some"prove_wc_list.rs:26prove_wc failedprove_wc.rs:21args
rule "assumption - relation"prove_wc.rs:54prove_via failedprove_via.rs:8args
rule "eq"prove_wc.rs:125prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "symmetric"prove_eq.rs:38prove_eq failedprove_eq.rs:23args
rule "normalize-l"prove_eq.rs:68prove_normalize failedprove_normalize.rs:20args
rule "normalize-via-assumption"prove_normalize.rs:34prove_normalize_via failedprove_normalize.rs:56args
rule "trait implied bound"prove_wc.rs:118prove_via failedprove_via.rs:8args