From: Alberto Gonzalez <boqwxp@airmail.cc>
Date: Wed, 1 Apr 2020 19:32:44 +0000 (+0000)
Subject: Fix handling of `-sat` and `-unsat` options when the solver returns `unknown`.
X-Git-Tag: working-ls180~641^2~8
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ce033a8e3654ba1f9be06b9bab8202cc5a7d5b2b;p=yosys.git

Fix handling of `-sat` and `-unsat` options when the solver returns `unknown`.
---

diff --git a/passes/sat/qbfsat.cc b/passes/sat/qbfsat.cc
index 833cab167..a16ee546f 100644
--- a/passes/sat/qbfsat.cc
+++ b/passes/sat/qbfsat.cc
@@ -507,6 +507,8 @@ struct QbfSatPass : public Pass {
 			}
 			else if (!ret.unknown && !ret.sat && opt.sat)
 				log_cmd_error("expected problem to be SAT\n");
+			else if (ret.unknown && (opt.sat || opt.unsat))
+				log_cmd_error("expected problem to be %s\n", opt.sat? "SAT" : "UNSAT");
 		} else {
 			specialize_from_file(module, opt.specialize_soln_file);
 			Pass::call(design, "opt_clean");