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302 Commits

Author SHA1 Message Date
Alberto Gonzalez 4ab41c6435
qbfsat: Fixes three bugs. 
1. Infinite loop in the optimization procedure when the first solution found while maximizing is at zero.
2. A signed-ness issue when maximizing.
3. Erroneously entering bisection mode with no wire to optimize.
 2020-06-21 02:16:11 +00:00
Alberto Gonzalez a3d1f8637a
qbfsat: Use bit precise mapping for hole value wires and a more robust hole spec for writing to and specializing from a solution file. 2020-06-21 02:16:11 +00:00
whitequark ede4b10da8
Merge pull request #2173 from whitequark/use-cxx11-final-override 
Use C++11 final/override/[[noreturn]]
 2020-06-19 06:15:33 +00:00
whitequark 7191dd16f9 Use C++11 final/override keywords. 2020-06-18 23:34:52 +00:00
Alberto Gonzalez 76dfa81790
cutpoint: Improve efficiency by iterating over module ports instead of module wires. 2020-06-18 17:42:36 +00:00
Claire Wolf 0bd70e8222 Drive-by modernization in sat.cc 
Signed-off-by: Claire Wolf <claire@symbioticeda.com>
 2020-06-09 22:48:26 +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 f9eef5e3f7
qbfsat: Add support for CVC4. 2020-05-25 20:39:03 +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 ac41f8a9c7
qbfsat: Remove cruft inadvertently left untouched in commit 86fc49a9d6. 2020-05-23 00:53:09 +00:00
Alberto Gonzalez aea0fd5ed4
qbfsat: Add bisection mode and make it the default. 
Also adds `-nooptimize` and reorganizes `qbfsat.cc` a bit.
 2020-05-23 00:53:09 +00:00
whitequark b43c282e4e Add WASI platform support. 
This includes the following significant changes:
  * Patching ezsat and minisat to disable resource limiting code
    on WASM/WASI, since the POSIX functions they use are unavailable.
  * Adding a new definition, YOSYS_DISABLE_SPAWN, present if platform
    does not support spawning subprocesses (i.e. Emscripten or WASI).
    This definition hides the definition of `run_command()`.
  * Adding a new Makefile flag, DISABLE_SPAWN, present in the same
    condition. This flag disables all passes that require spawning
    subprocesses for their function.
 2020-04-30 18:56:25 +00:00
Claire Wolf dc9a72bc8d
Merge pull request #1989 from boqwxp/qbfsat_anyconst_sourcelocs 
qbfsat: Make hole name recovery from source locations more robust.
 2020-04-23 11:34:19 +02:00
Alberto Gonzalez 4ee8452d34
qbfsat: Make hole name recovery more robust. Allow multiple cell types to share the same source location as long as only one `$anyconst` or `$anyseq` has that location. 2020-04-23 05:45:44 +00:00
Alberto Gonzalez 7369e6b26b
qbfsat: Add `-assume-negative-polarity` option. 2020-04-23 04:06:15 +00:00
David Shah abf81c7639 sim: Fix handling of constant-connected cell inputs at startup 
Signed-off-by: David Shah <dave@ds0.me>
 2020-04-21 08:58:52 +01:00
David Shah 586739ecf3 qbfsat: Fix illegal use of 'stdout' identifier 
Signed-off-by: David Shah <dave@ds0.me>
 2020-04-17 08:42:39 +01:00
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
Alberto Gonzalez e300766fb3
Use `pool` instead of `std::set`. 2020-04-11 09:41:09 +00:00
Alberto Gonzalez 73bd7fb01d
Use `dict` instead of `std::map`. 2020-04-11 06:53:59 +00:00
Alberto Gonzalez de5e6fa56a
Clean up `passes/sat/qbfsat.cc`. 
Makes various cosmetic fixes, removes superfluous `hasPort()` check, and uses `emplace_back()` instead of `push_back()`.
 2020-04-09 07:47:44 +00:00
Alberto Gonzalez 194354e128
Remove `$anyconst` cells before specialization to eliminate warnings and the need to run `opt_clean`. 2020-04-07 03:29:54 +00:00
Alberto Gonzalez 5fedd0931c
Use newly-renamed `-push-copy` option. 2020-04-04 22:22:54 +00:00
Alberto Gonzalez 0ca3a8e94f
Improve style in `passes/sat/qbfsat.cc`. 2020-04-04 22:13:27 +00:00
Alberto Gonzalez 1db73e8dd2
Gracefully report error when module has nothing to prove. 2020-04-04 22:13:27 +00:00
Alberto Gonzalez 8f0f13cad2
Suppress `yosys-smtbmc` output unless the new `-show-smtbmc` option is provided. 2020-04-04 22:13:27 +00:00
Alberto Gonzalez ce033a8e36
Fix handling of `-sat` and `-unsat` options when the solver returns `unknown`. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 6af8b767b4
Use `log_push()` and `log_pop()` and show the satisfiable model when `-specialize` is not specified. 
Co-Authored-By: N. Engelhardt <nak@symbioticeda.com>
 2020-04-04 22:13:26 +00:00
Alberto Gonzalez d311a80222
Clean up `qbfsat` command and fix AND-reduction of miter outputs. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 125a583c57
Use the `-duplicate` option rather than `-save` and `-load` with an explicit name. 
Co-Authored-By: Claire Wolf <claire@symbioticeda.com>
 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 86fc49a9d6
Use internal `run_command()` API instead of `popen()`. 
Co-Authored-By: Claire Wolf <claire@symbioticeda.com>
 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 09b2264837
Clean up manual casting. 
Co-Authored-By: David Shah <dave@ds0.me>
 2020-04-04 22:13:26 +00:00
Alberto Gonzalez acf96b6b0b
Remove unimplemented `-timeout` option. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez bb101e0b3a
Implement the `-assume-outputs`, `-sat`, and -unsat` options for the `qbfsat` command. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 5527063f66
Add NDEBUG guards to `qbfsat` assertions. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez 3a4fd4a999
Implement `-specialize-from-file` option for the `qbfsat` command. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez b9e79e0bb7
Implement `-write-solution` option for the `qbfsat` command. 2020-04-04 22:13:26 +00:00
Alberto Gonzalez d07ac2612b
Clean up `passes/sat/qbfsat.cc`. 2020-04-04 22:13:26 +00:00
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 a4598d64ef
Hole value recovery and specialization implementation for `qbfsat` command. 2020-04-04 22:13:25 +00:00
Alberto Gonzalez 2fff574741
Barebones implementation of `qbfsat` command. 2020-04-04 22:13:25 +00:00
Alberto Gonzalez fb878b2a70
Initial skeleton for `qbfsat` command. 2020-04-04 22:13:25 +00:00
Eddie Hung 956ecd48f7 kernel: big fat patch to use more ID::*, otherwise ID(*) 2020-04-02 09:51:32 -07:00
Eddie Hung fdafb74eb7 kernel: use more ID::* 2020-04-02 07:14:08 -07:00
Eddie Hung 37f42fe102
Merge pull request #1845 from YosysHQ/eddie/kernel_speedup 
kernel: speedup by using more pass-by-const-ref
 2020-04-02 07:13:33 -07:00
Eddie Hung 3e88ede061
Merge pull request #1835 from boqwxp/cleanup_sat_expose 
Clean up pseudo-private member usage in `passes/sat/expose.cc`.
 2020-03-30 13:05:12 -07:00
Eddie Hung 9f7d20a653
Merge pull request #1831 from boqwxp/cleanup_sat_eval 
Clean up pseudo-private member usage in `passes/sat/eval.cc`.
 2020-03-30 11:13:53 -07:00
Alberto Gonzalez 00544cffab
Remove unused function parameter. 2020-03-30 18:00:19 +00:00
Alberto Gonzalez 5a0f029e23
Simplify iterating over selected modules or cells. 
Co-Authored-By: N. Engelhardt <nak@symbioticeda.com>
 2020-03-30 17:56:07 +00:00
Alberto Gonzalez f4faa1514b
Further clean up `passes/sat/eval.cc`. 
Co-Authored-By: Eddie Hung <eddie@fpgeh.com>
 2020-03-30 16:38:35 +00:00