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1328 Commits

Author SHA1 Message Date
Jannis Harder 1d40f5e8fa smtbmc: Avoid unnecessary string copies when parsing solver output 2022-09-02 22:37:08 +02:00
KrystalDelusion 9465b2af95 Fitting help messages to 80 character width 
Uses the regex below to search (using vscode):
	^\t\tlog\("(.{10,}(?<!\\n)|.{81,}\\n)"\);

Finds any log messages double indented (which help messages are)
and checks if *either* there are is no newline character at the end,
*or* the number of characters before the newline is more than 80.
 2022-08-24 10:40:57 +12:00
Jannis Harder 5142fb3b5c write_aiger: Fix non-$_FF_ FFs 
This broke while switching sby's formal flows to always use $_FF_'s.
 2022-08-18 13:56:22 +02:00
Jannis Harder 66f761a8c5 smtbmc: Set step range for --yw and dont skip steps for --check-witness 2022-08-16 13:37:30 +02:00
Jannis Harder b156fe903f yosys-witness: Add stats command 2022-08-16 13:37:30 +02:00
Jannis Harder 475267ac25 smtbmc: Add --check-witness mode 
This verifies that the given constraints force an assertion failure.
This is useful to debug witness trace conversion (and minimization).
 2022-08-16 13:37:30 +02:00
Jannis Harder efd5b86eb9 aiger: Add yosys-witness support 
Adds a new json based aiger map file and yosys-witness converters to us
this to convert between native and AIGER witness files.
 2022-08-16 13:37:30 +02:00
Jannis Harder f041e36c6e smtbmc: Add native json based witness format + smt2 backend support 
This adds a native json based witness trace format. By having a common
format that includes everything we support, and providing a conversion
utility (yosys-witness) we no longer need to implement every format for
every tool that deals with witness traces, avoiding a quadratic
opportunity to introduce subtle bugs.

Included:

  * smt2: New yosys-smt2-witness info lines containing full hierarchical
    paths without lossy escaping.
  * yosys-smtbmc --dump-yw trace.yw: Dump results in the new format.
  * yosys-smtbmc --yw trace.yw: Read new format as constraints.
  * yosys-witness: New tool to convert witness formats.
    Currently this can only display traces in a human-readable-only
    format and do a passthrough read/write of the new format.
  * ywio.py: Small python lib for reading and writing the new format.
    Used by yosys-smtbmc and yosys-witness to avoid duplication.
 2022-08-16 13:37:30 +02:00
Jannis Harder 96a1173598 btor: Support $anyinit cells 2022-08-16 13:37:30 +02:00
Jannis Harder 5893cae647 aiger: Support $anyinit cells 2022-08-16 13:37:30 +02:00
Jannis Harder 021c3c8da5 smt2: Support $anyinit cells 2022-08-16 13:37:30 +02:00
Jannis Harder a5e1d3b997 formalff: Set new replaced_by_gclk attribute on removed dff's clks 
This attribute can be used by formal backends to indicate which clocks
were mapped to the global clock. Update the btor and smt2 backend which
already handle clock inputs to understand this attribute.
 2022-08-16 13:37:30 +02:00
Miodrag Milanovic 4444d5cf68 Switched to utf-8 in smtio.py 2022-08-09 12:54:48 +02:00
Miodrag Milanovic 99f1c71582 properly encode string in rtlil 2022-08-09 12:45:32 +02:00
Miodrag Milanović 3705d8414e
Merge pull request #3432 from YosysHQ/aki/jny_updates 
jny: Added JNY schema and additional information to JNY output file
 2022-08-03 13:33:10 +02:00
Jannis Harder 6af5e74f95 smt2: Fix $shift/$shiftx with negative shift ammounts 
Fixes #3431, fixes #3344
 2022-08-02 20:16:41 +02:00
Aki Van Ness 4f0ee383c9
backend: jny: updated the `JnyWriter` to emite a new "invocation" entry as well as a "$schema" entry to point to the location the schema will be at 2022-08-02 06:58:41 -04:00
Michael Nolan 24b895778a Add support for GHDL modfloor operator 2022-07-05 15:15:54 -04:00
Jannis Harder 930bcf0e75 smt2, btor: Revert calling memory_map -rom-only 
This approach had major issues with ROMs whose initialization was not
fully defined. If required, memory_map -rom-only -keepdc should be
called early in a formal flow instead. (This does require a careful
choice of optimization passes though. Sby's scripts will be updated
accordingly.)
 2022-06-29 18:28:34 +02:00
Jannis Harder d78d807a7f memory_map: -keepdc option for formal 
Use it when invoking memory_map -rom-only from write_{smt2,btor}.
 2022-06-27 15:47:55 +02:00
Kevin Läufer de5c4bf523 btor: add support for $pos cell 2022-06-20 16:40:46 -07:00
Jannis Harder 4adef63cd4 smt2, btor: Use memory_map -rom-only to make ROMs usable for k-induction 
This avoids provability regressions now that we infer more ROMs.

This fixes #3378
 2022-06-17 17:23:13 +02:00
Jannis Harder 0c5f62f6ff smtbmc: noincr: keep solver running for post check-sat unrolling 2022-06-08 13:20:25 +02:00
Jannis Harder 6db2948938
Merge pull request #3357 from jix/smtbmc-cvc5 
smtbmc: recognize cvc5 and fix unrolling for cvc4/cvc5
 2022-06-08 12:52:51 +02:00
Jannis Harder ac22f1764d smt2: emit smtlib2_comb_expr outputs after all inputs 2022-06-07 19:06:45 +02:00
Jannis Harder 5f9a97d234
Merge pull request #3319 from programmerjake/smtlib2-expr-support 
add smtlib2_comb_expr
 2022-06-07 16:47:10 +02:00
Jannis Harder ab9e887dee smtbmc: Force nonincremental mode when yices is used with forall 2022-06-03 16:45:23 +02:00
Jannis Harder 0207d7b0cf smtbmc: recognize cvc5 and fix unrolling for cvc4/cvc5 2022-06-03 16:24:09 +02:00
Jacob Lifshay cd57c5adb3 smt2: Add smtlib2_comb_expr attribute to allow user-selected smtlib2 expressions 2022-06-02 22:37:29 -07:00
Miodrag Milanovic 7ee570a75e Use proper operator 2022-05-27 10:23:34 +02:00
Jacob Lifshay d53479a0d6 add $divfloor support to write_smt2 
Fixes: #3330
 2022-05-24 01:34:25 -07:00
Claire Xenia Wolf 3fb32540ea Add propagated clock signals into btor info file 2022-05-04 08:10:18 +02:00
Jannis Harder c7ef0f2932 smt2: Make write port array stores conditional on nonzero write mask 2022-04-20 17:49:48 +02:00
Aki Van Ness 1f1a403cce pass jny: flipped the defaults for the inclusion of various bits of metadata 2022-04-08 08:05:15 +02:00
Aki Van Ness 6053856f91 pass jny: ensured the cell collection is cleared between modules 2022-04-08 08:05:15 +02:00
Aki Van Ness 5a016713cc pass jny: fixed missing quotes around the type value for the cell sort 2022-04-08 08:05:15 +02:00
Aki Van Ness 2e792857e9 pass jny: fixed the backslash escape for strings 2022-04-08 08:05:15 +02:00
Aki Van Ness cae5ea8337 pass jny: removed the invalid json escapes 2022-04-08 08:05:15 +02:00
Aki Van Ness dccc89e8b3 pass jny: added some todo comments about things that need to be done before a proper merge, but it should be enough for the PoC at the moment 2022-04-08 08:05:15 +02:00
Aki Van Ness 1be9bef28b pass jny: changed the constructor initializers to use parens rather than curly-braces to hopefully make GCC 4.8 happy 2022-04-08 08:05:15 +02:00
Aki Van Ness 43b2fc5566 pass jny: fixed the string escape method to be less jank and more proper 2022-04-08 08:05:15 +02:00
Aki Van Ness 52ea944012 pass jny: fixed the signed output for param value output 2022-04-08 08:05:15 +02:00
Aki Van Ness 58e2870261 pass jny: added connection output 2022-04-08 08:05:15 +02:00
Aki Van Ness 167206f2f5 pass jny: added filter options for including connections, attributes, and properties 2022-04-08 08:05:15 +02:00
Aki Van Ness 587f31b9a3 pass jny: large chunk of refactoring to make the JSON output more pretty and the internals less of a spaghetti nightmare 2022-04-08 08:05:15 +02:00
Aki Van Ness 0e20619189 metadata -> jny: migrated to the proper name for the pass 2022-04-08 08:05:15 +02:00
Aki Van Ness bdf14557ca pass metadata: added the machinery to write param and attributes 2022-04-08 08:05:15 +02:00
Aki Van Ness 1876ed21e7 pass metadata: removed superfluous `stringf` calls 2022-04-08 08:05:15 +02:00
Aki Van Ness ca03fbdc6d pass metadata: some more rough work on dumping the parameters and attributes 2022-04-08 08:05:15 +02:00
Aki Van Ness 6a90b42c48 pass metadata: fixed the MetadataWriter object initializer so GCC 4.8 is happy 2022-04-08 08:05:15 +02:00