// WriteExtendedTrace writes an extended proof trace in TraceCheck format.
// Requires that p was created with EnableTrace.
func (p *Pigosat) WriteExtendedTrace(f io.Writer) error {
defer p.ready(true)()
if Status(C.picosat_res(p.p)) != Unsatisfiable {
return fmt.Errorf("expected to be in Unsatisfiable state")
}
return cFileWriterWrapper(f, func(cfile *C.FILE) error {
// void picosat_write_extended_trace (PicoSAT *, FILE * trace_file);
_, err := C.picosat_write_extended_trace(p.p, cfile)
return err
})
}
// Res returns Solve's last status, or Unknown if Solve hasn't yet been called.
func (p *Pigosat) Res() (status Status) {
defer p.ready(true)()
// int picosat_res (PicoSAT *);
return Status(C.picosat_res(p.p))
}