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Support defining predicates using #[thrust::predicate] attribute with fn statements #23

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Merged
coeff-aij merged 10 commits into from
Jan 29, 2026
Merged

Support defining predicates using #[thrust::predicate] attribute with fn statements #23

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b09e4fe
add: test for annotations of predicates
coeff-aij Dec 25, 2025
e149696
add: definitions to check if functions are marked as predicates
coeff-aij Jan 23, 2026
07154d8
add: gather functions marked as predicates into Analyzer::predicates
coeff-aij Jan 12, 2026
9dee274
add: logging for found predicates
coeff-aij Jan 4, 2026
52046b2
add: UserDefinedPredDefs in chc::System
coeff-aij Jan 23, 2026
5e06c95
add: parse `#[thrust::predicate]` and register user-defined predicate…
coeff-aij Jan 23, 2026
125b56e
add: format `UserDefinedPredDef` in SMT-LIB2
coeff-aij Jan 23, 2026
3a2e20b
fix: test for `#[thrust::predicate]`
coeff-aij Jan 23, 2026
0735236
fix: use String for predicate body
coeff-aij Jan 23, 2026
1e495d0
fix: insert raw commands and user-defined predicates before datatype …
coeff-aij Jan 26, 2026
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11 changes: 6 additions & 5 deletions src/chc/smtlib2.rs
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@coeff-aij coeff-aij Jan 26, 2026

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I think raw‑command definitions and user‑defined predicates should be emitted before the datatype declarations in the generated .smt2 file.

The reason is that raw commands and predicates written by users may refer to previously declared datatypes(ex. access fieleds of structs), whereas datatype definitions emmitted by Thrust will not refer to those commands or predicates.

Original file line number Diff line number Diff line change
Expand Up @@ -600,6 +600,12 @@ impl<'a> std::fmt::Display for System<'a> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
writeln!(f, "(set-logic HORN)\n")?;

writeln!(f, "{}\n", Datatypes::new(&self.ctx, self.ctx.datatypes()))?;
for datatype in self.ctx.datatypes() {
writeln!(f, "{}", DatatypeDiscrFun::new(&self.ctx, datatype))?;
writeln!(f, "{}", MatcherPredFun::new(&self.ctx, datatype))?;
}

// insert command from #![thrust::raw_command()] here
for raw_command in &self.inner.raw_commands {
writeln!(f, "{}\n", RawCommand::new(raw_command))?;
Expand All @@ -613,11 +619,6 @@ impl<'a> std::fmt::Display for System<'a> {
)?;
}

writeln!(f, "{}\n", Datatypes::new(&self.ctx, self.ctx.datatypes()))?;
for datatype in self.ctx.datatypes() {
writeln!(f, "{}", DatatypeDiscrFun::new(&self.ctx, datatype))?;
writeln!(f, "{}", MatcherPredFun::new(&self.ctx, datatype))?;
}
writeln!(f)?;
for (p, def) in self.inner.pred_vars.iter_enumerated() {
if !def.debug_info.is_empty() {
Expand Down