Added prove mode support via "abc pdr"

sbysrc/sby_mode_prove.py

@@ -0,0 +1,52 @@
+#
+# SymbiYosys (sby) -- Front-end for Yosys-based formal verification flows
+#
+# Copyright (C) 2016  Clifford Wolf <clifford@clifford.at>
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+
+import re, os, getopt
+from sby_core import SbyTask
+
+def run(job):
+    job.opt_depth = 20
+
+    if "depth" in job.options:
+        job.opt_depth = int(job.options["depth"])
+
+    job.basecase_done = False
+    job.induction_done = False
+    job.basecase_tasks = list()
+    job.induction_tasks = list()
+
+    for engine_idx in range(len(job.engines)):
+        engine = job.engines[engine_idx]
+        assert len(engine) > 0
+
+        job.log("engine_%d: %s" % (engine_idx, " ".join(engine)))
+        os.makedirs("%s/engine_%d" % (job.workdir, engine_idx))
+
+        if engine[0] == "smtbmc":
+            import sby_engine_smtbmc
+            sby_engine_smtbmc.run("prove", job, engine_idx, engine)
+
+        elif engine[0] == "abc":
+            import sby_engine_abc
+            sby_engine_abc.run("prove", job, engine_idx, engine)
+
+        else:
+            assert False
+
+    job.taskloop()
+