cvc5.git
6 years agoOption to use sampling for CEGIS (#1555)
Andrew Reynolds [Sat, 3 Feb 2018 03:04:49 +0000 (21:04 -0600)]
Option to use sampling for CEGIS (#1555)

6 years agoRestoring ostream format. Resolves a few CIDs 1362780. (#1543)
Tim King [Sat, 3 Feb 2018 01:03:10 +0000 (17:03 -0800)]
Restoring ostream format. Resolves a few CIDs 1362780. (#1543)

6 years agoFix remaining synthesis solution regressions (#1557)
Andrew Reynolds [Fri, 2 Feb 2018 23:20:44 +0000 (17:20 -0600)]
Fix remaining synthesis solution regressions (#1557)

6 years agoOption to check solutions produced by SyGuS solver (#1553)
Haniel Barbosa [Fri, 2 Feb 2018 21:34:44 +0000 (15:34 -0600)]
Option to check solutions produced by SyGuS solver (#1553)

6 years agoAdd interface in sygus to get synthesis solution Nodes (#1552)
Andrew Reynolds [Thu, 1 Feb 2018 19:52:34 +0000 (13:52 -0600)]
Add interface in sygus to get synthesis solution Nodes (#1552)

6 years agoUse sygus to synthesize/verify rewrite rules (#1547)
Andrew Reynolds [Thu, 1 Feb 2018 18:13:54 +0000 (12:13 -0600)]
Use sygus to synthesize/verify rewrite rules (#1547)

6 years agoFurther clean and document datatypes rewriter (#1548)
Andrew Reynolds [Tue, 30 Jan 2018 17:42:31 +0000 (11:42 -0600)]
Further clean and document datatypes rewriter (#1548)

6 years agoGeneralize explanations for PBE sygus strings based on negative contains when multipl...
Andrew Reynolds [Mon, 29 Jan 2018 22:59:13 +0000 (16:59 -0600)]
Generalize explanations for PBE sygus strings based on negative contains when multiple strategies are present (#1546)

6 years agoSort children of all commutative operators for sygus. (#1544)
Andrew Reynolds [Sun, 28 Jan 2018 22:37:54 +0000 (16:37 -0600)]
Sort children of all commutative operators for sygus. (#1544)

6 years agoRemoving an unused variable. Resolves CID 1172257. (#1542)
Tim King [Sat, 27 Jan 2018 20:50:54 +0000 (12:50 -0800)]
Removing an unused variable. Resolves CID 1172257. (#1542)

6 years agoRemoving structurally dead code. (#1540)
Tim King [Sat, 27 Jan 2018 00:29:16 +0000 (16:29 -0800)]
Removing structurally dead code. (#1540)

6 years agoCommenting out throw specifiers on SmtEngine. These can later be refined into better...
Tim King [Thu, 25 Jan 2018 03:55:59 +0000 (19:55 -0800)]
Commenting out throw specifiers on SmtEngine. These can later be refined into better documentation. (#1512)

6 years agoAdded unit tests for PLUS, NEG, NOT ICs for CBQI BV. (#1534)
Aina Niemetz [Thu, 25 Jan 2018 00:19:50 +0000 (16:19 -0800)]
Added unit tests for PLUS, NEG, NOT ICs for CBQI BV. (#1534)

6 years agoFix MULT handling for CBQI BV. (#1531)
Aina Niemetz [Tue, 23 Jan 2018 20:02:42 +0000 (12:02 -0800)]
Fix MULT handling for CBQI BV. (#1531)

6 years agoCommenting out throw specifiers for DeltaRationExceptions. These functions can be...
Tim King [Tue, 23 Jan 2018 08:14:43 +0000 (00:14 -0800)]
Commenting out throw specifiers for DeltaRationExceptions. These functions can be cleaned up later. (#1529)

6 years agoAdd previous concat handling for CBQI BV as heuristic for EQ. (#1528)
Aina Niemetz [Mon, 22 Jan 2018 18:06:26 +0000 (10:06 -0800)]
Add previous concat handling for CBQI BV as heuristic for EQ. (#1528)

Previously, we computed an inverse for s1 o x, x o s2, s1 o x o s2 while disregarding that invertibility
depends on si. This adds this handling as an optional heuristic for concats over (dis)equality since it improves performance on a considerable number of benchmarks.

6 years agoRefactor and fix solveBvLit for CBQI BV. (#1526)
Aina Niemetz [Mon, 22 Jan 2018 04:41:39 +0000 (20:41 -0800)]
Refactor and fix solveBvLit for CBQI BV. (#1526)

This refactors and simplifies solveBvLit() and fixes the following:

- generate side conditions for BITVECTOR_NEG, BITVECTOR_NOT, BITVECTOR_PLUS,
BITVECTOR_XOR over inequalities and disequality
- fix CONCAT handling (generate side conditions rather then computing an inverse which was incorrect)
- fix SIGN_EXTEND handling (same as with CONCATs)

6 years agoOnly push/pop around check-sat if it is associated with an assertion (#1525)
Andrew Reynolds [Mon, 22 Jan 2018 02:06:58 +0000 (20:06 -0600)]
Only push/pop around check-sat if it is associated with an assertion (#1525)

6 years agoRemoves yet more throw specifiers. Updating the documentation as needed. (#1518)
Tim King [Wed, 17 Jan 2018 20:16:17 +0000 (12:16 -0800)]
Removes yet more throw specifiers. Updating the documentation as needed. (#1518)

6 years agoRemoving more miscellaneous throw specifiers. (#1509)
Tim King [Tue, 16 Jan 2018 06:47:40 +0000 (22:47 -0800)]
Removing more miscellaneous throw specifiers. (#1509)

Removing more miscellaneous throw specifiers. Also fixing the spelling of amount in several places.

6 years agoRemoving throw specifiers from Type. (#1511)
Tim King [Mon, 15 Jan 2018 07:56:56 +0000 (23:56 -0800)]
Removing throw specifiers from Type. (#1511)

6 years agoRemoving throw specifiers from OptionsHandler. (#1510)
Tim King [Sun, 14 Jan 2018 08:59:54 +0000 (00:59 -0800)]
Removing throw specifiers from OptionsHandler. (#1510)

6 years agoRemove BITVECTOR_SUB from isInvertible(). (#1513)
Aina Niemetz [Sun, 14 Jan 2018 06:12:27 +0000 (22:12 -0800)]
Remove BITVECTOR_SUB from isInvertible(). (#1513)

6 years agoImprovements for CBQI BV (#1504)
Andrew Reynolds [Fri, 12 Jan 2018 22:05:52 +0000 (16:05 -0600)]
Improvements for CBQI BV (#1504)

6 years agoRemoved division by constant handling for CBQI BV (unsound). (#1508)
Aina Niemetz [Wed, 10 Jan 2018 23:18:13 +0000 (15:18 -0800)]
Removed division by constant handling for CBQI BV (unsound). (#1508)

This removes division by constant handling in the BV inverter introduced in #1498.
Division by constant was simplified to:
x / s OP t ---> x = t / s^-1 if s odd and there exists a multiplicative modular inverse s^-1.
This however, is incorrect since
x / s * 1 / s^-1 != x / (s * s^-1)

6 years agoRemoving throw specifiers for TypeRules. (#1501)
Tim King [Wed, 10 Jan 2018 20:57:38 +0000 (12:57 -0800)]
Removing throw specifiers for TypeRules. (#1501)

6 years agoRemoving throw specifiers from type enumerators. (#1502)
Tim King [Wed, 10 Jan 2018 16:52:01 +0000 (08:52 -0800)]
Removing throw specifiers from type enumerators. (#1502)

6 years agoCleaning up throw specifiers on Exception and subclasses. (#1475)
Tim King [Wed, 10 Jan 2018 06:05:02 +0000 (22:05 -0800)]
Cleaning up throw specifiers on Exception and subclasses. (#1475)

6 years agoFix linearization for terms where the solve variable does not occur. (#1506)
Mathias Preiner [Wed, 10 Jan 2018 02:12:32 +0000 (18:12 -0800)]
Fix linearization for terms where the solve variable does not occur. (#1506)

6 years agoReorganized bitvector.h. (#1505)
Aina Niemetz [Tue, 9 Jan 2018 23:35:44 +0000 (15:35 -0800)]
Reorganized bitvector.h. (#1505)

6 years agoFix output of --trace=help. (#1500)
Aina Niemetz [Tue, 9 Jan 2018 20:44:27 +0000 (12:44 -0800)]
Fix output of --trace=help. (#1500)

6 years agoRemoving throw specifiers from miscellaneous src/expr/ classes. (#1503)
Tim King [Tue, 9 Jan 2018 14:20:52 +0000 (06:20 -0800)]
Removing throw specifiers from miscellaneous src/expr/ classes. (#1503)

6 years agoRemoving more miscellaneous throw specifiers. (#1488)
Tim King [Tue, 9 Jan 2018 06:04:02 +0000 (22:04 -0800)]
Removing more miscellaneous throw specifiers. (#1488)

Removing more miscellaneous throw specifiers.

6 years agoAdd bv util mkConst(unsigned, Integer&). (#1499)
Aina Niemetz [Tue, 9 Jan 2018 04:16:33 +0000 (20:16 -0800)]
Add bv util mkConst(unsigned, Integer&). (#1499)

6 years agoRemove throw specifiers from symbol table. (#1490)
Tim King [Tue, 9 Jan 2018 02:38:20 +0000 (18:38 -0800)]
Remove throw specifiers from symbol table. (#1490)

6 years agoAdded division by constant handling for CBQI BV. (#1498)
Aina Niemetz [Tue, 9 Jan 2018 00:52:36 +0000 (16:52 -0800)]
Added division by constant handling for CBQI BV. (#1498)

6 years agoRemove portfolio option from builds. (#1496)
Aina Niemetz [Mon, 8 Jan 2018 23:30:16 +0000 (15:30 -0800)]
Remove portfolio option from builds. (#1496)

6 years agoRemoves throw specifiers from command.{h,cpp}. (#1485)
Tim King [Mon, 8 Jan 2018 21:28:04 +0000 (13:28 -0800)]
Removes throw specifiers from command.{h,cpp}. (#1485)

6 years agoImprovements to quant+BV/Bool variable elimination (#1495)
Andrew Reynolds [Mon, 8 Jan 2018 19:21:29 +0000 (13:21 -0600)]
Improvements to quant+BV/Bool variable elimination (#1495)

6 years agoFix broken GMP URL in get-win-dependencies script (#1493)
Andres Noetzli [Mon, 8 Jan 2018 18:05:59 +0000 (19:05 +0100)]
Fix broken GMP URL in get-win-dependencies script (#1493)

6 years agoRemove throw specifiers from datatype. (#1489)
Tim King [Mon, 8 Jan 2018 15:49:23 +0000 (07:49 -0800)]
Remove throw specifiers from datatype. (#1489)

6 years agoRe-ordering field initialization in QuantInfo to remove compiler warning. (#1487)
Tim King [Mon, 8 Jan 2018 03:14:57 +0000 (19:14 -0800)]
Re-ordering field initialization in QuantInfo to remove compiler warning. (#1487)

6 years agoRemoves RationalFromDoubleException. Replaces this with an explicit M… (#1476)
Tim King [Mon, 8 Jan 2018 00:46:16 +0000 (16:46 -0800)]
Removes RationalFromDoubleException. Replaces this with an explicit M… (#1476)

* Removes RationalFromDoubleException. Replaces this with an explicit Maybe<Rational> datatype. Makes Maybe<T> CVC4_PUBLIC. Updates the users of Rational::fromDouble(). Miscellaneous cleanup of ApproxSimplex.

6 years agoRemoving throw specifiers from src/parser/. (#1486)
Tim King [Sat, 6 Jan 2018 23:27:11 +0000 (15:27 -0800)]
Removing throw specifiers from src/parser/. (#1486)

6 years agoAdd special {SGE,SGT,NE}_UDIV1 side conditions for BV of size 1. (#1483)
Mathias Preiner [Sat, 6 Jan 2018 06:50:21 +0000 (22:50 -0800)]
Add special {SGE,SGT,NE}_UDIV1 side conditions for BV of size 1. (#1483)

This commit further fixes some other issues with bit-vectors of size 1.

6 years agoUse simpler EQUAL SCs for LSHR0, LSHR1, ASHR0, AHSR1, SHL0, SHL1. (#1482)
Mathias Preiner [Sat, 6 Jan 2018 02:05:41 +0000 (18:05 -0800)]
Use simpler EQUAL SCs for LSHR0, LSHR1, ASHR0, AHSR1, SHL0, SHL1. (#1482)

6 years agoAdd UGT/SGT side conditions for AND/OR + other fixes. (#1481)
Mathias Preiner [Fri, 5 Jan 2018 22:24:49 +0000 (14:24 -0800)]
Add UGT/SGT side conditions for AND/OR + other fixes. (#1481)

6 years agoFix side condition handling for PLUS, XOR, SIGN_EXTEND for CBQI BV. (#1480)
Aina Niemetz [Fri, 5 Jan 2018 02:32:48 +0000 (18:32 -0800)]
Fix side condition handling for PLUS, XOR, SIGN_EXTEND for CBQI BV. (#1480)

6 years agoAdd side conditions for inequalities of SHL. (#1472)
Mathias Preiner [Fri, 5 Jan 2018 01:28:42 +0000 (17:28 -0800)]
Add side conditions for inequalities of SHL. (#1472)

6 years agoImprovements for CBQI (#1478)
Andrew Reynolds [Thu, 4 Jan 2018 23:30:25 +0000 (17:30 -0600)]
Improvements for CBQI (#1478)

Includes:

- Basic rewriting for choice functions in the builtin rewriter,
- Do not consider more than one equal term in ceg instantiator (helps cases where we have a
  repeated pattern of duplicate instantiations),
- Do not introduce dummy extract equalities in the cbqi-bv-rm-extract pass (dummy concat
  equalities suffice).
- Do not consider extracts in nested quantified formulas in the cbqi-bv-rm-extract pass.

6 years agoRemoving miscellaneous throw specifiers. (#1474)
Tim King [Thu, 4 Jan 2018 21:09:39 +0000 (13:09 -0800)]
Removing miscellaneous throw specifiers. (#1474)

6 years agoRemoving throw specifiers from context/. (#1473)
Tim King [Thu, 4 Jan 2018 06:01:42 +0000 (22:01 -0800)]
Removing throw specifiers from context/. (#1473)

6 years agoAdd side conditions for UGT/SGT over BITVECTOR_UREM for CBQI BV. (#1470)
Aina Niemetz [Wed, 3 Jan 2018 22:18:48 +0000 (14:18 -0800)]
Add side conditions for UGT/SGT over BITVECTOR_UREM for CBQI BV. (#1470)

6 years agoAdd UGT/SGT side conditions for LSHR. (#1469)
Mathias Preiner [Wed, 3 Jan 2018 20:44:56 +0000 (12:44 -0800)]
Add UGT/SGT side conditions for LSHR. (#1469)

6 years ago Add side conditions for inequalities over BITVECTOR_MULT for CBQI BV. (#1468)
Aina Niemetz [Wed, 3 Jan 2018 19:26:40 +0000 (11:26 -0800)]
 Add side conditions for inequalities over BITVECTOR_MULT for CBQI BV. (#1468)

6 years agoGlobal negate (#1466)
Andrew Reynolds [Wed, 3 Jan 2018 15:35:27 +0000 (09:35 -0600)]
Global negate (#1466)

6 years ago Add side conditions for inequalities of ASHR. (#1461)
Mathias Preiner [Wed, 3 Jan 2018 07:57:43 +0000 (23:57 -0800)]
 Add side conditions for inequalities of ASHR. (#1461)

6 years agoAdd side conditions for inequalities over BITVECTOR_UDIV for CBQI BV. (#1464)
Aina Niemetz [Wed, 3 Jan 2018 04:30:04 +0000 (20:30 -0800)]
Add side conditions for inequalities over BITVECTOR_UDIV for CBQI BV. (#1464)

We now can handle all cases of (in|dis)equality over BITVECTOR_UREM. This also simplifies some
of the side conditions for equality.

6 years agoSimplify side condition for SGE over UREM (index = 1) for CBQI BV. (#1463)
Aina Niemetz [Wed, 3 Jan 2018 02:17:06 +0000 (18:17 -0800)]
Simplify side condition for SGE over UREM (index = 1) for CBQI BV. (#1463)

6 years agoFix handling for UGT/SGT. (#1467)
Mathias Preiner [Wed, 3 Jan 2018 00:54:32 +0000 (16:54 -0800)]
Fix handling for UGT/SGT. (#1467)

Previously, we only handled the case x s < t. With this fix, we now get BITVECTOR_[SU]GT for litk
if we encounter a literal t < x s.

6 years agoRewrites for BitVector multiplication (#1465)
Andrew Reynolds [Tue, 2 Jan 2018 22:12:45 +0000 (16:12 -0600)]
Rewrites for BitVector multiplication (#1465)

6 years agoAdd side conditions for inequalities of LSHR. (#1462)
Mathias Preiner [Tue, 2 Jan 2018 19:21:12 +0000 (11:21 -0800)]
Add side conditions for inequalities of LSHR. (#1462)

6 years agoImprove rewriter for string equality (#1427)
Andrew Reynolds [Tue, 2 Jan 2018 17:43:00 +0000 (11:43 -0600)]
Improve rewriter for string equality (#1427)

6 years agoAdd side conditions for inequalities over BITVECTOR_UREM for CBQI BV. (#1460)
Aina Niemetz [Sat, 30 Dec 2017 04:02:38 +0000 (20:02 -0800)]
Add side conditions for inequalities over BITVECTOR_UREM for CBQI BV. (#1460)

We now can handle all cases of (in|dis)equality over UREM. Previously, we could not handle equality
for index=0 and had to rewrite x % s = t to x - x / s * s. Since we can now handle this case, we do not
apply this rewriting anymore.

6 years agoFix RNG for seed = 0. (#1459)
Aina Niemetz [Sat, 30 Dec 2017 02:08:41 +0000 (18:08 -0800)]
Fix RNG for seed = 0. (#1459)

The default value for the seed for CVC4's RNG is 0. However, xorshift* requires a non-zero seed, else it generates only zero values. This fixes and prevents this behavior by resetting a given zero seed to ~0.

6 years agoCbqi repeat solve literal (#1458)
Andrew Reynolds [Sat, 30 Dec 2017 00:24:43 +0000 (18:24 -0600)]
Cbqi repeat solve literal (#1458)

6 years agoAdd side conditions for inequalities of AND/OR. (#1457)
Mathias Preiner [Fri, 29 Dec 2017 22:33:16 +0000 (14:33 -0800)]
Add side conditions for inequalities of AND/OR. (#1457)

6 years agoFix unit tests for ineq for CBQI BV. (#1456)
Aina Niemetz [Fri, 29 Dec 2017 04:27:58 +0000 (20:27 -0800)]
Fix unit tests for ineq for CBQI BV. (#1456)

6 years agoAdd unit tests for side conditions for inequality for CBQI BV. (#1455)
Aina Niemetz [Fri, 29 Dec 2017 03:24:35 +0000 (19:24 -0800)]
Add unit tests for side conditions for inequality for CBQI BV. (#1455)

6 years agoFixes for cbqi (#1453)
Andrew Reynolds [Thu, 28 Dec 2017 22:21:08 +0000 (16:21 -0600)]
Fixes for cbqi (#1453)

6 years agoRel smt parser (#1446)
Arjun Viswanathan [Thu, 28 Dec 2017 03:43:35 +0000 (21:43 -0600)]
Rel smt parser (#1446)

6 years agoMinor refactor for inequality handling for CBQI BV. (#1452)
Aina Niemetz [Thu, 28 Dec 2017 01:12:34 +0000 (17:12 -0800)]
Minor refactor for inequality handling for CBQI BV. (#1452)

6 years agoDisable sygus PBE when sygus stream is enabled (#1451)
Andrew Reynolds [Wed, 27 Dec 2017 22:25:22 +0000 (16:25 -0600)]
Disable sygus PBE when sygus stream is enabled (#1451)

6 years agoFixes for cbqi-bv (#1449)
Andrew Reynolds [Thu, 21 Dec 2017 04:26:17 +0000 (22:26 -0600)]
Fixes for cbqi-bv (#1449)

6 years agoAdd explicit disequality handling when generating side condition for CBQI BV. (#1447)
Aina Niemetz [Thu, 21 Dec 2017 02:27:39 +0000 (18:27 -0800)]
Add explicit disequality handling when generating side condition for CBQI BV. (#1447)

This refactors solveBvLit to support explicit handling of disequalities (and, in the next step, inequalities) when generating side conditions.

6 years agoAdd rewriting rule for ranking benchmarks. (#1448)
Mathias Preiner [Thu, 21 Dec 2017 00:45:07 +0000 (16:45 -0800)]
Add rewriting rule for ranking benchmarks. (#1448)

6 years agoTranscendental functions check model (#1443)
Andrew Reynolds [Wed, 20 Dec 2017 18:36:10 +0000 (12:36 -0600)]
Transcendental functions check model (#1443)

6 years agoFix travis write errors. (#1445)
Aina Niemetz [Tue, 19 Dec 2017 01:20:02 +0000 (17:20 -0800)]
Fix travis write errors. (#1445)

For reasons unknown, after the latest update of the Trusty environment on Travis,
we encountered write errors for the three Clang builds. As suggested here
https://github.com/travis-ci/travis-ci/issues/4704#issuecomment-321777557,
adding filter_secrets: false to the .travis.yml fixes the problem.

Note: switching back to the deprecated builds did not fix the problem.

6 years agoEnable side condition handling for shifts introduced in #1441. (#1444)
Aina Niemetz [Sat, 16 Dec 2017 01:29:03 +0000 (17:29 -0800)]
Enable side condition handling for shifts introduced in #1441. (#1444)

PR #1441 forgot to enable the missing side condition handling for shifts. This PR enables it.

6 years agoAdd missing side conditions for SHL, LSHR, ASHR for CBQI BV. (#1441)
Aina Niemetz [Thu, 14 Dec 2017 03:10:16 +0000 (19:10 -0800)]
Add missing side conditions for SHL, LSHR, ASHR for CBQI BV. (#1441)

This adds side conditions for operators BITVECTOR_SHL, BITVECTOR_LSHR and
BITVECTOR_ASHR for index = 1, i.e., s << x = t and s >> x = t. Previously, we treated
 these cases as non-invertible.

6 years agoAdd SIGTERM handler. (#1440)
Mathias Preiner [Tue, 12 Dec 2017 19:34:46 +0000 (11:34 -0800)]
Add SIGTERM handler. (#1440)

Print statistics if CVC4 gets a SIGTERM signal.

6 years agoAdd new infrastructure for preprocessing passes (#1053)
justinxu421 [Mon, 11 Dec 2017 00:39:02 +0000 (16:39 -0800)]
Add new infrastructure for preprocessing passes (#1053)

This commit adds new infrastructure for preprocessing passes. It is preparation only, it does not change how the current preprocessing passes work (this will be done in future commits).

6 years agoFix issue 1433. (#1435)
Andrew Reynolds [Sun, 10 Dec 2017 11:12:22 +0000 (05:12 -0600)]
Fix issue 1433. (#1435)

6 years agoFix issue with mkConst/getConst of TypeConstant (#1439)
Andres Noetzli [Sun, 10 Dec 2017 08:48:05 +0000 (00:48 -0800)]
Fix issue with mkConst/getConst of TypeConstant (#1439)

When compiling the Java bindings on macOS, the linker complained about
CVC4::ExprManager::mkConst<CVC4::TypeConstant>() and
CVC4::Expr::getConst<CVC4::TypeConstant>() being undefined. After some
research, I found that the issue has been introduced by commit
36bf9f8bcb2a1a3aea1f90eb4d13aed3bbf6da8f. It looks like adding the
-no-undefined flags resulted in the symbols in question being omitted
due to TypeConstant not being exported. This commit makes TypeConstant
CVC4_PUBLIC, which fixes the issue.

6 years agoAdd CEGQI BV linearization of additions and equalities over additions. (#1417)
Mathias Preiner [Sat, 9 Dec 2017 01:36:15 +0000 (17:36 -0800)]
Add CEGQI BV linearization of additions and equalities over additions. (#1417)

Adds support for linearizing additions w.r.t. to a variable.

For example,

a * x + b + c * d * -x = e + x

is rewritten to

x * (a - c * d - 1) = e - b.

This also adds an additional rewriting rule x * x = x --> x < 2.

6 years agoFixed side conditions for CBQI BV, added unit tests. (#1434)
Aina Niemetz [Fri, 8 Dec 2017 22:32:16 +0000 (14:32 -0800)]
Fixed side conditions for CBQI BV, added unit tests. (#1434)

This fixes the side conditions for BITVECTOR_UREM_TOTAL, BITVECTOR_UDIV_TOTAL,
BITVECTOR_LSHR, BITVECTOR_ASHR, BITVECTOR_SHL.

It refactors side condition generation for better readability and unit testing.
It further adds unit tests for all side conditions we generate in order to check if they too weak
or to restrictive (which may result in unsound behavior).

This is achieved by checking the following two implications:
not (exists x. s * x = t => SC) ... if sat, SC is too restrictive
not (SC => exists x. s * x = t) ... if sat SC is too weak

This simplifies to checking not (SC <=> exists x. s * x = t).

6 years agoDocument and clean datatypes rewriter (#1437)
Andrew Reynolds [Fri, 8 Dec 2017 19:54:00 +0000 (13:54 -0600)]
Document and clean datatypes rewriter (#1437)

6 years agoMake collect model info return a Bool (#1421)
Andrew Reynolds [Fri, 8 Dec 2017 16:14:31 +0000 (10:14 -0600)]
Make collect model info return a Bool (#1421)

6 years agoFixes related to SyGuS + real arithmetic (#1432)
Andrew Reynolds [Thu, 7 Dec 2017 10:07:17 +0000 (04:07 -0600)]
Fixes related to SyGuS + real arithmetic (#1432)

6 years agoAdd command for define-fun-rec and add to API (#1412)
Andrew Reynolds [Thu, 7 Dec 2017 02:57:44 +0000 (20:57 -0600)]
Add command for define-fun-rec and add to API (#1412)

6 years agoFixed time stats for MiniSat solve time. (#1431)
Aina Niemetz [Wed, 6 Dec 2017 20:35:18 +0000 (12:35 -0800)]
Fixed time stats for MiniSat solve time. (#1431)

Also, moved implementation of BVMinisatSatSolver::MinisatNotify::notify to .cpp file.

6 years agoRemove CDChunkList (#1414)
Andres Noetzli [Wed, 6 Dec 2017 12:45:06 +0000 (04:45 -0800)]
Remove CDChunkList (#1414)

6 years agoFix output of --show-trace-tags. (#1430)
Mathias Preiner [Tue, 5 Dec 2017 20:18:37 +0000 (12:18 -0800)]
Fix output of --show-trace-tags. (#1430)

Now prints each tag in a separate line.

6 years agoAdding SyGuS grammars for rationals. (#1426)
Haniel Barbosa [Tue, 5 Dec 2017 02:06:47 +0000 (20:06 -0600)]
Adding SyGuS grammars for rationals. (#1426)

6 years agoEliminate expand definitions from Sygus (#1425)
Andrew Reynolds [Mon, 4 Dec 2017 21:42:00 +0000 (15:42 -0600)]
Eliminate expand definitions from Sygus (#1425)

6 years agoFix strings rewriter for strip constant endpoint reverse direction (#1424)
Andrew Reynolds [Mon, 4 Dec 2017 20:18:16 +0000 (14:18 -0600)]
Fix strings rewriter for strip constant endpoint reverse direction (#1424)

6 years agoFix side condition for BITVECTOR_MULT. (#1422)
Mathias Preiner [Mon, 4 Dec 2017 18:43:40 +0000 (10:43 -0800)]
Fix side condition for BITVECTOR_MULT. (#1422)

6 years agoNormalize grammars - 2 (#1420)
Haniel Barbosa [Sun, 3 Dec 2017 19:18:42 +0000 (13:18 -0600)]
Normalize grammars - 2 (#1420)

This is another step towards addressing #1304 and #1344. This pull request:

- Refactors SygusGrammarNorm
- Makes SyGusGrammarNorm a default component in the construction of grammar. The linearization of grammars however only occurs if the option --sygus-grammar-norm is used.
- Performs a "chain transformation" in the application of the PLUS operator in integer grammars
- Removes redundant expansions of definitions from TermDbSygus
- Adds a default empty print callback to SygusEmptyPrintCallback

This lays the basis for more general linearizations.

6 years agoMinor improvements to inst match generator (#1415)
Andrew Reynolds [Sat, 2 Dec 2017 12:14:12 +0000 (06:14 -0600)]
Minor improvements to inst match generator (#1415)

6 years agoImprove rewriter for string replace (#1416)
Andrew Reynolds [Sat, 2 Dec 2017 02:03:03 +0000 (20:03 -0600)]
Improve rewriter for string replace (#1416)