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Code Activity
13149 commits 122 branches 59 tags 73 MiB
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308 commits

Author SHA1 Message Date
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
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
Jacob Lifshay
d53479a0d6 add $divfloor support to write_smt2 
Fixes: #3330
 2022-05-24 01:34:25 -07:00
Jannis Harder
c7ef0f2932 smt2: Make write port array stores conditional on nonzero write mask 2022-04-20 17:49:48 +02:00
Jannis Harder
8b15f3a548 smtbmc: fix bmc with no assertions 
this was broken by the `--keep-going` changes
 2022-03-29 20:41:50 +02:00
Jannis Harder
8cc8c5efde
Merge pull request #3253 from jix/smtbmc-nodeepcopy 
smtbmc: Avoid unnecessary deep copies during unrolling
 2022-03-28 16:59:26 +02:00
Jannis Harder
17e2a3048c
Merge pull request #3247 from jix/smtbmc-keepgoing 
smtbmc `--keep-going`
 2022-03-28 16:58:41 +02:00
Jannis Harder
d25daa6203 smtbmc: Avoid unnecessary deep copies during unrolling 2022-03-28 13:03:48 +02:00
Jannis Harder
5e4d804e53 yosys-smtbmc: Option to keep going after failed assertions in BMC mode 2022-03-24 16:01:14 +01:00
Jannis Harder
e43ebf8527 yosys-smtbmc: Fix typo in help text, remove trailing whitespace 2022-03-24 16:01:14 +01:00
N. Engelhardt
a7ee01065a ignore # comment lines 2022-03-24 10:19:17 +01:00
Miodrag Milanović
a95e5d505b
Merge pull request #3186 from nakengelhardt/smtbmc_sby_print_id 
add argument for printing cell names in yosys-smtbmc
 2022-03-04 16:39:12 +01:00
N. Engelhardt
dc739362c7 print cell name for properties in yosys-smtbmc 2022-02-22 17:00:10 +01:00
Claire Xenia Wolf
30eb7f8665 Add a bit of flexibilty re trace length when processing aiger witnesses in smtbmc.py 
Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
 2022-02-11 17:24:49 +01:00
Marcelina Kościelnicka
93508d58da Add $bmux and $demux cells. 2022-01-28 23:34:41 +01:00
Marcelina Kościelnicka
e7d89e653c Hook up $aldff support in various passes. 2021-10-02 21:01:21 +02:00
Marcelina Kościelnicka
33749f1e3a yosys-smtbmc: Fix reused loop variable. 
Fixes #2999.
 2021-09-10 13:34:58 +02:00
GCHQDeveloper560
4379375d89 Add support for the Bitwuzla solver 2021-07-12 22:07:58 +02:00
Claire Xenia Wolf
72787f52fc Fixing old e-mail addresses and deadnames 
s/((Claire|Xen|Xenia|Clifford)\s+)+(Wolf|Xen)\s+<(claire|clifford)@(symbioticeda.com|clifford.at|yosyshq.com)>/Claire Xenia Wolf <claire@yosyshq.com>/gi;
s/((Nina|Nak|N\.)\s+)+Engelhardt\s+<nak@(symbioticeda.com|yosyshq.com)>/N. Engelhardt <nak@yosyshq.com>/gi;
s/((David)\s+)+Shah\s+<(dave|david)@(symbioticeda.com|yosyshq.com|ds0.me)>/David Shah <dave@ds0.me>/gi;
s/((Miodrag)\s+)+Milanovic\s+<(miodrag|micko)@(symbioticeda.com|yosyshq.com)>/Miodrag Milanovic <micko@yosyshq.com>/gi;
s,https?://www.clifford.at/yosys/,http://yosyshq.net/yosys/,g;
 2021-06-08 00:39:36 +02:00
Marcelina Kościelnicka
cbf6b719fe Make a few passes auto-call Mem::narrow instead of rejecting wide ports. 
This essentially adds wide port support for free in passes that don't
have a usefully better way of handling wide ports than just breaking
them up to narrow ports, avoiding "please run memory_narrow" annoyance.
 2021-05-28 00:40:56 +02:00
Marcelina Kościelnicka
69bf5c81c7 Reject wide ports in some passes that will never support them. 2021-05-25 02:07:25 +02:00
Marcelina Kościelnicka
c4cc888b2c kernel/rtlil: Extract some helpers for checking memory cell types. 
There will soon be more (versioned) memory cells, so handle passes that
only care if a cell is memory-related by a simple helper call instead of
a hardcoded list.
 2021-05-22 21:43:00 +02:00
Marcelina Kościelnicka
979347999f btor, smt2, smv: Add a hint on how to deal with funny FF types. 2021-02-25 22:04:04 +01:00
Marcelina Kościelnicka
f272c8b407 smt2: Use Mem helper. 2020-10-21 17:51:20 +02:00
Jakob Wenzel
54166ae0c5 smtbmc: escape identifiers in verilog testbench 2020-10-06 11:27:14 +02:00
N. Engelhardt
3238190797 use the new isPublic() in a few places 2020-09-14 12:43:18 +02:00
whitequark
c1fff52477
write_smt2: fix SMT-LIB tutorial URL 2020-08-29 20:02:35 +00:00
Noah Moroze
91682d189e Ensure smt2 comments are associated with accessors 2020-08-20 16:00:05 -04:00
Alberto Gonzalez
42fb75c570
smtio: Emit mode: start options before set-logic command and any other options after it. 
Refer to the SMT-LIB specification, section 4.1.7.  According to the spec, some options can only be specified in `start` mode.  Once the solver sees `set-logic`, it moves to `assert` mode.
 2020-07-20 22:09:44 +00:00
Alberto Gonzalez
654864658f
smtio: Add support for parsing yosys-smt2-solver-option info statements. 2020-07-20 21:54:56 +00:00
Alberto Gonzalez
f037985337
smt2: Add -solver-option option. 2020-07-20 21:54:56 +00:00
Claire Wolf
a207cb362c Only allow "sat" and "unsat" smt solver responses in yosys-smtbmc 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-07-20 19:35:32 +02:00
whitequark
7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Yehowshua Immanuel
da0778350b
more reasonable numbers for memory 2020-06-04 17:00:04 -04:00
Yehowshua Immanuel
5d29a9f633
MacOS has even stricter stack limits in catalina. 
Invoking sby in macOS Catalina fails because of bizarre stack limits in Catalina.
 2020-06-04 14:01:56 -04:00
clairexen
ea46ed81f9
Merge pull request #2018 from boqwxp/qbfsat-timeout 
smtbmc and qbfsat: Add timeout option to set solver timeouts for Z3, Yices, and CVC4.
 2020-05-30 15:04:51 +02:00
Alberto Gonzalez
ea30465107
smtbmc: Remove superfluous yosys-smt2-timeout file macro. 
Co-Authored-By: clairexen <claire@symbioticeda.com>
 2020-05-29 21:33:00 +00:00
clairexen
94c1035389
Merge pull request #1885 from Xiretza/mod-rem-cells 
Fix modulo/remainder semantics
 2020-05-29 16:37:23 +02:00
Xiretza
17163cf43a
Add flooring modulo operator 
The $div and $mod cells use truncating division semantics (rounding
towards 0), as defined by e.g. Verilog. Another rounding mode, flooring
(rounding towards negative infinity), can be used in e.g. VHDL. The
new $modfloor cell provides this flooring modulo (also known as "remainder"
in several languages, but this name is ambiguous).

This commit also fixes the handling of $mod in opt_expr, which was
previously optimized as if it was $modfloor.
 2020-05-28 22:59:03 +02:00
Alberto Gonzalez
9847a4eea8
smtbmc and qbfsat: Add timeout option to set solver timeouts for Z3, Yices, and CVC4. 2020-05-25 20:39:30 +00:00
Alberto Gonzalez
54570a3978
qbfsat: Move SMT2 info statements back to the top of the file. 2020-05-25 20:38:29 +00:00
Alberto Gonzalez
903456c267
qbfsat: Add -solver option and allow choice of Z3 or Yices, making Yices the default. 
Ensures that "BV" is the logic whenever solving an exists-forall problem with Yices, moves the "(set-logic ...)" directive above any non-info line, sets the `ef-max-iters` parameter to a very high number when using Yices in exists-forall mode so as not to prematurely abandon difficult problems, and does not provide the incompatible "--incremental" Yices argument when in exists-forall mode.
 2020-05-25 20:38:29 +00:00
Alberto Gonzalez
1053032a81
smtbmc: Fix typo in error message. 
Co-Authored-By: N. Engelhardt <nak@symbioticeda.com>
 2020-05-19 16:13:44 +00:00