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90 Commits

Author SHA1 Message Date
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 1053032a81
smtbmc: Fix typo in error message. 
Co-Authored-By: N. Engelhardt <nak@symbioticeda.com>
 2020-05-19 16:13:44 +00:00
Alberto Gonzalez 299ab76a09
smtbmc: Fix return status handling. 2020-05-14 17:07:59 +00:00
N. Engelhardt 0b7a5879e5
Merge pull request #1830 from boqwxp/qbfsat 
Add `qbfsat` command to integrate exists-forall solving and specialization
 2020-04-15 17:33:50 +02:00
Miodrag Milanovic 0d789c5a3b Support custom PROGRAM_PREFIX 2020-04-10 10:38:40 +02:00
Alberto Gonzalez 437afa1f0c
Updated `yosys-smtbmc` to optionally dump raw bit strings, and fixed hole value recovery using that mode. 2020-04-04 22:13:25 +00:00
Alberto Gonzalez 0fda8308bc Add support for optimizing exists-forall problems. 
Modifies smt2 backend to recognize `$anyconst` etc. assigned to a wire with the `maximize` or `minimize` attribute and emit `; yosys-smt2-maximize` or `; yosys-smt2-minimize` directives as appropriate.
Modifies `backends/smt2/smtbmc.py` and `smtio.py` to recognize those directives and emit a `(maximize ...)` or `(minimize ...)` command at the end of `smt_forall_assert()`, as described in the paper "νZ - An Optimizing SMT Solver" by Nikolaj Bjørner et al.
Adds an example `examples/smtbmc/demo9.v` to show how it can be used.
 2020-03-13 17:10:29 +00:00
Clifford Wolf 2ed2e9c3e8 Change smtbmc "Warmup failed" status to "PREUNSAT" 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-10-03 14:59:07 +02:00
Clifford Wolf bacca57537 Fix smtbmc.py handling of zero appended steps 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2019-03-14 22:04:42 +01:00
whitequark efa278e232 Fix typographical and grammatical errors and inconsistencies. 
The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.

    DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
    DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
    codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint

More hits were found by looking through comments and strings manually.
 2019-01-02 13:12:17 +00:00
Clifford Wolf 0b9bb852c6 Add yosys-smtbmc support for btor witness 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-10 03:43:07 +01:00
Clifford Wolf 47a5dfdaa4 Add "yosys-smtbmc --btorwit" skeleton 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-12-08 06:59:27 +01:00
Clifford Wolf d0acea4f2e Add proper error message for when smtbmc "append" fails 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-11-04 14:41:28 +01:00
Clifford Wolf cedbc35f4b Imporove yosys-smtbmc error handling, Improve VCD output 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-03-05 12:17:22 +01:00
Clifford Wolf 3ced2cca6e Fix smtbmc smtc/aiw parser for wire names containing [] 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-03-03 14:15:49 +01:00
Clifford Wolf 675dd5347a Small fixes and improvements in $allconst/$allseq handling 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-26 11:58:44 +01:00
Clifford Wolf b13e6bd375 Add smtbmc support for exist-forall problems 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-23 19:33:30 +01:00
Clifford Wolf 17583b6a21 Add support for mockup clock signals in yosys-smtbmc vcd output 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-02-20 17:45:22 +01:00
Clifford Wolf 9419de3e37 Add yosys-smtbmc VCD writer support for memories with async writes 2017-12-14 03:06:00 +01:00
Clifford Wolf da91b31bb2 Fixed "yosys-smtbmc -g" handling of no solution 2017-11-27 19:43:36 +01:00
Clifford Wolf dd46d76394 Fix a bug in yosys-smtbmc in ROM handling 2017-10-25 13:05:14 +02:00
Clifford Wolf 48b2b376d0 Add "yosys-smtbmc --smtc-init --smtc-top --noinit" 2017-08-04 17:09:08 +02:00
Clifford Wolf 3a8f6f0f51 Add verilator support to testbenches generated by yosys-smtbmc 2017-07-21 14:33:29 +02:00
Clifford Wolf 10c7709e68 Generate FSM-style testbenches in smtbmc 2017-07-12 15:57:04 +02:00
Clifford Wolf 3c693b6561 Change s/asserts/assertions/ in yosys-smtbmc log messages 2017-07-07 11:52:25 +02:00
Clifford Wolf 8f7404f82c Add "yosys-smtbmc --presat" 2017-07-07 02:47:30 +02:00
Clifford Wolf 3e0948e16f Remove unneeded delays in smtbmc vlogtb 2017-07-03 15:37:17 +02:00
Clifford Wolf ea805af6f5 Add "yosys-smtbmc --vlogtb-top" 2017-07-01 18:19:23 +02:00
Clifford Wolf 7d2fb6e2fc Fix smtbmc vlogtb bug in $anyseq handling 2017-07-01 02:13:32 +02:00
Clifford Wolf 8f8baccfde Fix generation of vlogtb output in yosys-smtbmc for "rand reg" and "rand const reg" 2017-06-07 12:30:24 +02:00
Clifford Wolf fbd52ec6dd Use hex addresses in smtbmc vcd mem traces 2017-02-28 13:54:50 +01:00
Clifford Wolf 2203562268 Add smtbmc support for memory vcd dumping 2017-02-26 21:26:32 +01:00
Clifford Wolf 66a1617b69 Fix assert checking in "yosys-smtbmc -c --append" 2017-02-26 11:06:26 +01:00
Clifford Wolf fd1cc0c73d Improve (and fix for stbv mode) SMT2 memory API 2017-02-26 10:58:34 +01:00
Clifford Wolf 38bf458037 Add support for "yosys-smtbmc -c --append" 2017-02-25 23:41:40 +01:00
Clifford Wolf 7af9727f78 Add "write_smt2 -stbv" 2017-02-24 18:24:53 +01:00
Clifford Wolf 5541b42159 Add assert check in "yosys-smtbmc -c" 2017-02-04 21:22:17 +01:00
Clifford Wolf adbecfee66 Improve yosys-smtbmc cover() support 2017-02-04 21:10:24 +01:00
Clifford Wolf 0c0784b6bf Partially implement cover() support in yosys-smtbmc 2017-02-04 18:17:08 +01:00
Clifford Wolf 18ea65ef04 Add "yosys-smtbmc --aig <aim_filename>:<aiw_filename>" support 2017-01-30 11:38:43 +01:00
Clifford Wolf e54c355b41 Add "yosys-smtbmc --aig-noheader" and AIGER mem init support 2017-01-28 15:15:02 +01:00
Clifford Wolf b7cfb7dbd2 Fix $initstate handling bug in yosys-smtbmc 2017-01-11 14:14:12 +01:00
Clifford Wolf 81bb952e5d Handle "always 1" like "always -1" in .smtc files 2017-01-02 20:08:03 +01:00
Clifford Wolf 37760541bd Improved yosys-smtbmc default -t/--assume-skipped for --cex and --aig 2016-12-03 12:37:20 +01:00
Clifford Wolf 88b9733253 Added "yosys-smtbmc --aig" 2016-12-01 13:16:57 +01:00
Clifford Wolf f257ccf22e Added "yosys-smtbmc --append" 2016-11-22 21:21:13 +01:00
Clifford Wolf 281a977b39 Ignore L_pi nets in "yosys-smtbmc --cex" 2016-10-18 10:54:53 +02:00
Clifford Wolf 0bcc617a4f Added "yosys-smtbmc --cex <filename>" 2016-10-17 14:57:28 +02:00
Clifford Wolf 5f6a838823 Added smtc support for top-level state with [], [N:] syntax 2016-10-08 12:25:34 +02:00
Clifford Wolf 34e2fb594d Minor improvements in yosys-smtbmc 2016-09-24 20:40:22 +02:00