Andrew Reynolds [Tue, 7 Aug 2018 04:04:21 +0000 (23:04 -0500)]
Make flat form inferences optional in strings (#2277)
Andrew Reynolds [Tue, 7 Aug 2018 03:39:21 +0000 (22:39 -0500)]
Add RegLan to smt2/sygus parsers. (#2276)
Andrew Reynolds [Tue, 7 Aug 2018 02:44:41 +0000 (21:44 -0500)]
Move sygus quantifier elimination step for non-ground-single-invocation to sygus (#2269)
Andrew Reynolds [Tue, 7 Aug 2018 01:28:15 +0000 (20:28 -0500)]
Remove support for Enum sygus syntax. (#2264)
Andrew Reynolds [Mon, 6 Aug 2018 23:55:29 +0000 (18:55 -0500)]
Fixes for sygus inference (#2238)
This includes:
- Enabling sygus-specific options in SmtEngine::setDefaults,
- Disabling a variant of miniscoping (triggered by many chc-comp18 benchmarks),
- Treating free constants as functions to synthesize
Andrew Reynolds [Mon, 6 Aug 2018 22:33:23 +0000 (17:33 -0500)]
Fixes and improvements for single invocation inference (#2261)
Andrew Reynolds [Mon, 6 Aug 2018 21:36:23 +0000 (16:36 -0500)]
Fix degenerate case of sygus grammar construction for 0-argument Bools (#2260)
Aina Niemetz [Sat, 4 Aug 2018 02:41:49 +0000 (19:41 -0700)]
Add rewrite for nested BITVECTOR_ITE with cond_outer == cond_inner. (#2272)
Aina Niemetz [Sat, 4 Aug 2018 01:09:07 +0000 (18:09 -0700)]
Add rewrite for BITVECTOR_ITE with const children. (#2271)
Aina Niemetz [Fri, 3 Aug 2018 23:43:10 +0000 (16:43 -0700)]
Add rewrite for BITVECTOR_ITE with term_then == term_else. (#2268)
Andrew Reynolds [Fri, 3 Aug 2018 20:34:17 +0000 (15:34 -0500)]
Eliminate option for sygus UF evaluation functions (#2262)
Mathias Preiner [Fri, 3 Aug 2018 12:59:23 +0000 (05:59 -0700)]
Fix printing statistics in case of signals. (#2267)
Aina Niemetz [Fri, 3 Aug 2018 00:11:36 +0000 (17:11 -0700)]
Add timer for BV inequality solver. (#2265)
Andrew Reynolds [Thu, 2 Aug 2018 22:17:09 +0000 (17:17 -0500)]
Parse standard separation logic inputs (#2257)
Andrew Reynolds [Thu, 2 Aug 2018 20:29:45 +0000 (15:29 -0500)]
Improve CEGQI heuristics involving equality and multiple instantiations (#2254)
Andrew Reynolds [Thu, 2 Aug 2018 19:54:37 +0000 (14:54 -0500)]
Fix candidate rewrite utilities for non-first-class types (#2256)
Andrew Reynolds [Thu, 2 Aug 2018 19:16:48 +0000 (14:16 -0500)]
Make strings robust to regular expression variables. (#2255)
The theory solver for strings does not support regular expression variables. With this PR, we properly throw an exception if it is given one.
However, the rewriter needs to handle regular expression variables (for various reasons: rewriting an expression before its asserted, sygus explanation generalization, etc.). This corrects a few miscellaneous issues in the strings rewriter to make it sound for these cases.
It also corrects a seg fault in simpleRegexpConsume when testing memberships `(str.in.re "" R)`, where R is a *non-constant* regular expression (which will now be allowed if variables are allowed).
This is in preparation for adding `RegLan` as a token to the smt2/sygus parsers.
Aina Niemetz [Thu, 2 Aug 2018 18:52:32 +0000 (11:52 -0700)]
Add rewrites for BITVECTOR_ITE and BITVECTOR_COMP with const condition/child. (#2259)
Andrew Reynolds [Thu, 2 Aug 2018 18:01:50 +0000 (13:01 -0500)]
Remove references to deprecated propagate as decision feature (#2258)
Andres Noetzli [Thu, 2 Aug 2018 14:54:50 +0000 (07:54 -0700)]
Remove Subversion build info (#2250)
Andrew Reynolds [Thu, 2 Aug 2018 04:24:53 +0000 (23:24 -0500)]
Fix API call for reg exp. (#2248)
Andrew Reynolds [Thu, 2 Aug 2018 02:24:42 +0000 (21:24 -0500)]
Improvements and fixes in cegqi arithmetic (#2247)
This includes several improvements for cegqi with arithmetic:
- Randomly choose either lower or upper bounds instead of always using lower bounds (this is similar to cegqi+BV),
- Equalities are handled by processAssertions,
- Resort to *only* model values at full effort instead of trying to mix model values/bounds (this is also similar to cegqi+BV),
- cegqi+arithmetic does not try multiple instantiations unless the flag cbqiMultiInst is set. This makes it so that ceg_instantiator does not have exponential behavior when the strategy is non-monotonic.
It also includes a core fix to computing what bound is optimal based on an ordering that incorporates virtual terms. Previously, we would consider, e.g.:
`a+b*delta > c+d*delta if a>=c and b>=d`
Whereas the correct check is lexicographic:
`a+b*delta > c+d*delta if a>c or a=c and b>d`
This means e.g. 2+(-1)*delta > 3 was previously wrongly inferred.
This is part of merging https://github.com/ajreynol/CVC4/tree/cegqiSingleInst, which is +3-0 on SMTLIB BV and +12-9 on SMTLIB LIA+LRA+NRA+NIA.
Andres Noetzli [Thu, 2 Aug 2018 01:07:34 +0000 (18:07 -0700)]
Remove outdated references to TLS (#2245)
Andrew Reynolds [Thu, 2 Aug 2018 00:10:47 +0000 (19:10 -0500)]
Fix issues with printing parametric datatypes in smt2 (#2213)
Andres Noetzli [Wed, 1 Aug 2018 23:08:47 +0000 (16:08 -0700)]
Fix wrong evaluation of STRING_STOI (#2252)
Mathias Preiner [Wed, 1 Aug 2018 22:14:45 +0000 (15:14 -0700)]
Fix bool-to-bv preprocessing pass for non-{bv,bool} equalities. (#2251)
Aina Niemetz [Wed, 1 Aug 2018 19:08:02 +0000 (12:08 -0700)]
InteractiveShell: Remove redundant options argument. (#2244)
Aina Niemetz [Wed, 1 Aug 2018 18:36:30 +0000 (11:36 -0700)]
New C++ API: Fixed ownership of options object. (#2243)
Andrew Reynolds [Wed, 1 Aug 2018 17:22:09 +0000 (12:22 -0500)]
Fix issues with bv2nat (#2219)
This includes:
- A missing case in the smt2 printer,
- A bug in an inference of int2bv applied to bv2nat where the types are different.
Andrew Reynolds [Wed, 1 Aug 2018 15:33:41 +0000 (10:33 -0500)]
Fix assertion in conjecture generator (#2246)
Makes minor improvements and removes the need to have the assertion (which was incorrect).
This fixes the nightlies.
Andrew Reynolds [Wed, 1 Aug 2018 07:31:49 +0000 (02:31 -0500)]
Make conjecture generator's uf term enumeration safer (#2172)
This ensures that the function getEnumerateUfTerm does not have out of bounds accesses. This is an alternative fix to the one brought up in #2158.
Andrew Reynolds [Wed, 1 Aug 2018 06:31:14 +0000 (01:31 -0500)]
Make candidate rewrite match filtering handle polymorphic operators properly (#2236)
Currently, the discrimination tree index used for candidate rewrite rule filtering based on matching does not properly distinguish polymorphic operators, which leads to type errors. This makes the index handle them correctly.
Fixes #1923.
ayveejay [Wed, 1 Aug 2018 02:25:51 +0000 (03:25 +0100)]
Improvements and tests for the API around separation logic (#2229)
- Introduces a system that validating that, when not using THEORY_SEP, that it is not possible to
obtain the separation logic heap/nil (validate_exception())
- Introduces a system test demonstrating how to use the separation logic theory, and then how
to use the "getters" to obtain and interrogate the heap/nil expressions (validate_getters())
- Refactors the original getters to avoid duplicate code
- Add a check as part of the getters to ensure that THEORY_SEP is in use
Mathias Preiner [Wed, 1 Aug 2018 00:51:15 +0000 (17:51 -0700)]
Remove hasAssertions() method from eager BV solver. (#2239)
Mathias Preiner [Tue, 31 Jul 2018 18:25:27 +0000 (11:25 -0700)]
Fix option handler for lazy/bv-sat-solver combinations. (#2225)
Further, unifies all *limitHandler and *limitPerHandler to limitHandler.
Mathias Preiner [Mon, 30 Jul 2018 22:24:55 +0000 (15:24 -0700)]
Add support for incremental eager bit-blasting. (#1838)
Eager incremental solving is achieved via solving under assumptions. As soon as incremental and eager bit-blasting is enabled, assertions are passed to the SAT solver as assumptions rather than assertions. This requires the eager SAT solver to support incremental solving, which is currently only supported by CryptoMiniSat.
FabianWolff [Mon, 30 Jul 2018 16:28:11 +0000 (18:28 +0200)]
Fix several spelling errors (#2231)
Tim King [Mon, 30 Jul 2018 02:02:44 +0000 (19:02 -0700)]
Storing a std::pair<Key,Data> on CDOhash_map.
Changing the return type of CDHashMap::iterator* to return a reference. Requires performance testing.
Mathias Preiner [Fri, 27 Jul 2018 21:54:06 +0000 (14:54 -0700)]
Require argument description for non-{bool,void} options. (#2228)
Not adding the argument description for non-{bool,void} options is now an error.
Further, adds missing argument descriptions.
Andres Noetzli [Fri, 27 Jul 2018 20:22:49 +0000 (13:22 -0700)]
Fix issues related to cxxtest in configure.ac (#2226)
Fixes #2188. There were two issues related to cxxtest in configure.ac:
- `AC_PATH_PROGS` was used wrong (the third argument is a value to
assign to the first argument and cannot be used for arbitrary
commands)
- The `test` command always executes both sides of an "and" (`-a`), so
`basename` was called without arguments when `CXXTESTGEN` was empty
This commit fixes both issues.
Mathias Preiner [Fri, 27 Jul 2018 19:50:47 +0000 (12:50 -0700)]
Make Python a required CVC4 dependency. (#2227)
Python is required for generating the options code. The dependency is now
required. Now autoconf searches for a Python version >= 2.7 and sets the
corresponding environment variables. mkoptions.py is now called with $(PYTHON).
This fixes the broken competition and windows nightly builds.
Andrew Reynolds [Fri, 27 Jul 2018 15:56:01 +0000 (10:56 -0500)]
Fix for candidate rewrite rule filtering. (#2220)
Andrew Reynolds [Fri, 27 Jul 2018 15:19:13 +0000 (10:19 -0500)]
Make check-synth robust for assertions that are not the synth conjecture (#2217)
Andrew Reynolds [Fri, 27 Jul 2018 07:03:56 +0000 (02:03 -0500)]
Fix Node::hasFreeVar for function variables (#2216)
A Node has free variables if its operator has free variables.
Mathias Preiner [Fri, 27 Jul 2018 02:56:44 +0000 (19:56 -0700)]
Fix CryptoMiniSat config to allow system versions. (#2223)
Aina Niemetz [Thu, 26 Jul 2018 23:37:26 +0000 (16:37 -0700)]
New C++ API: Enable examples. (#2222)
Tim King [Thu, 26 Jul 2018 23:02:33 +0000 (16:02 -0700)]
Removing unused CDTrailHashmap. (#2221)
yoni206 [Thu, 26 Jul 2018 22:16:04 +0000 (15:16 -0700)]
Disabling bvLazyRewriteExtf in the right place (#2214)
Tim King [Thu, 26 Jul 2018 20:55:53 +0000 (13:55 -0700)]
Changing CDInsertHashMap to store <const Key, const Data> pairs. This is in preparation for adding map utility functions. (#2209)
Tim King [Thu, 26 Jul 2018 20:13:43 +0000 (13:13 -0700)]
Changing the arithmetic static learner to use CDHashMap. This is 2/3 PRs for deprecating CDTrailHashMap. (#2207)
Andrew Reynolds [Thu, 26 Jul 2018 19:48:40 +0000 (14:48 -0500)]
Fix rewriter for lambda (#2211)
The rewriter for lambda is currently too aggressive, there are cases like:
lambda xy. x = y
that are converted into an array representation that when indexing based on x gives (store y true false), which is subsequently converted to:
lambda fv_1 fv_2. fv_1 = y
where fv_1 and fv_2 are canonical free variables. Here, y is used as index but was not substituted hence is incorrectly made free.
To make things simpler, this PR disables any rewriting for lambda unless the array representation of the lambda is a constant, which hardcodes/simplifies a previous argument (reqConst=true). This fixes a sygus issue I ran into yesterday (regression added in this PR).
Some parts of the code were formatted as a result.
Andrew Reynolds [Thu, 26 Jul 2018 19:27:37 +0000 (14:27 -0500)]
Fix a few issues in the sygus sampler related to evaluation (#2215)
ayveejay [Thu, 26 Jul 2018 18:27:46 +0000 (19:27 +0100)]
Avoid explicit dependency on Python 3 (#2195)
Aina Niemetz [Thu, 26 Jul 2018 17:00:21 +0000 (10:00 -0700)]
New C++ API: Third batch of commands (SMT-LIB). (#2212)
Aina Niemetz [Thu, 26 Jul 2018 16:00:18 +0000 (09:00 -0700)]
New C++ API: Second batch of commands (SMT-LIB). (#2201)
Tim King [Wed, 25 Jul 2018 23:56:34 +0000 (16:56 -0700)]
Changing ArithIteUtils to use CDInsertHashMap. (#2206)
This is 1/3 PRs for deprecating CDTrailHashMap.
Tim King [Wed, 25 Jul 2018 23:13:18 +0000 (16:13 -0700)]
Removing support for CDHashMap::iterator's postfix increment. (#2208)
Andrew Reynolds [Wed, 25 Jul 2018 17:34:32 +0000 (12:34 -0500)]
Move reg exp rewrites from prerewrite to postrewrite (#2204)
ayveejay [Wed, 25 Jul 2018 16:59:05 +0000 (17:59 +0100)]
Performing clang-format on the original change-set of #2194 (#2203)
Mathias Preiner [Wed, 25 Jul 2018 16:40:22 +0000 (09:40 -0700)]
Use CryptoMiniSat 5.6.3. (#2205)
Andrew Reynolds [Tue, 24 Jul 2018 22:01:38 +0000 (17:01 -0500)]
Improvements to sets + cardinality + quantifiers (#2200)
ayveejay [Tue, 24 Jul 2018 21:16:16 +0000 (22:16 +0100)]
Adding API access methods to get heap/nil expressions when using separation logic (#2194)
Aina Niemetz [Tue, 24 Jul 2018 17:11:24 +0000 (10:11 -0700)]
New C++ API: First batch of commands (SMT-LIB and non-SMT-LIB). (#2199)
Andrew Reynolds [Mon, 23 Jul 2018 23:02:36 +0000 (18:02 -0500)]
Improve rewriter for regular expression concatenation (#2196)
Andrew Reynolds [Mon, 23 Jul 2018 22:39:12 +0000 (17:39 -0500)]
Generalize symmetry detection for 1 symmetry variable mapped to n input variables (#1888)
Aina Niemetz [Mon, 23 Jul 2018 21:38:37 +0000 (14:38 -0700)]
New C++ API: Implementation of Solver class: OpTerm handling. (#2164)
Aina Niemetz [Mon, 23 Jul 2018 19:29:03 +0000 (12:29 -0700)]
New C++ API: declare-datatype. (#2166)
Andrew Reynolds [Mon, 23 Jul 2018 18:36:53 +0000 (13:36 -0500)]
sygusComp2018: add regressions (#2191)
Andrew Reynolds [Mon, 23 Jul 2018 17:01:02 +0000 (12:01 -0500)]
Fix warning in sygus PBE (#2190)
Andrew Reynolds [Sun, 22 Jul 2018 04:50:57 +0000 (23:50 -0500)]
sygusComp2018: Improvements to CEGIS loop (#2187)
Andrew Reynolds [Sat, 21 Jul 2018 14:19:31 +0000 (09:19 -0500)]
Optimizations and fixes for computing whether a type is finite (#2179)
Andrew Reynolds [Sat, 21 Jul 2018 12:27:28 +0000 (07:27 -0500)]
sygusComp2018: refactor and improve sygus io utility (#2185)
yoni206 [Sat, 21 Jul 2018 12:02:01 +0000 (05:02 -0700)]
Remove --no-check-proofs and --no-check-unsat-cores from a satisfiable test (#2184)
Andrew Reynolds [Fri, 20 Jul 2018 23:42:25 +0000 (01:42 +0200)]
Cleanup and additions for candidate generator (#2173)
Andrew Reynolds [Fri, 20 Jul 2018 20:34:18 +0000 (22:34 +0200)]
sygusComp2018: minor changes to repair constant utility (#2110)
Andrew Reynolds [Tue, 17 Jul 2018 23:51:28 +0000 (01:51 +0200)]
sygusComp2018: pbe multi-enumerator fairness option (#2178)
yoni206 [Tue, 17 Jul 2018 21:20:46 +0000 (14:20 -0700)]
Refactor sep-pre-skolem-emp preprocessing pass
Andrew Reynolds [Tue, 17 Jul 2018 17:53:14 +0000 (19:53 +0200)]
Minor cleanup and fixes for conflict-based instantiation (#2123)
Andrew Reynolds [Tue, 17 Jul 2018 17:07:22 +0000 (19:07 +0200)]
Do extended rewrite on results of quantifier elimination. (#2119)
Andrew Reynolds [Tue, 17 Jul 2018 16:25:13 +0000 (18:25 +0200)]
Purify applications of exp to transcendental arguments (#2097)
Andrew Reynolds [Tue, 17 Jul 2018 15:37:03 +0000 (17:37 +0200)]
sygusComp2018: update policies for solution reconstruction (#2109)
Andrew Reynolds [Tue, 17 Jul 2018 14:17:43 +0000 (16:17 +0200)]
sygusComp2018: Improvements to datatypes sygus solver (#2177)
Andrew Reynolds [Tue, 17 Jul 2018 11:02:32 +0000 (13:02 +0200)]
sygusComp 2018: updates to sygus term database (#2170)
Andres Noetzli [Sun, 15 Jul 2018 11:25:57 +0000 (04:25 -0700)]
Avoid ambiguous overloads in BitVector (#2169)
`long` is a 32-bit integer on Windows. CVC4's BitVector class had a
constructor for `unsigned int` and `unsigned long`, which lead to issues
with the new CVC4 C++ API because the two constructors were ambiguous
overloads. This commit changes the constructors to use `uint32_t` and
`uint64_t`, which are plattform independent and more explicit (mirroring
Andres Noetzli [Sat, 14 Jul 2018 08:45:58 +0000 (01:45 -0700)]
exportTo only if needed for --sygus-rr-synth-check (#2168)
Andrew Reynolds [Sat, 14 Jul 2018 08:08:11 +0000 (10:08 +0200)]
sygusComp2018: update semantics for declare-fun in sygus. (#2102)
Andrew Reynolds [Fri, 13 Jul 2018 22:30:04 +0000 (00:30 +0200)]
Fix and improve grammar normalization for any constant. (#2101)
Andres Noetzli [Fri, 13 Jul 2018 20:24:43 +0000 (13:24 -0700)]
Properly clean up assertion stack in CnfProof (#2147)
Fixes issue #2137. CnfProof has a stack of assertions that are being
converted to clauses. Previously, it could happen that while an
assertion was being added, TheoryProxy::explainPropagation() would be
called from Solver::reason() and push an assertion to the stack that was
then not removed. This lead to a clause id of the assertion being
associated with the explanation instead, which in turn could lead to a
wrong unsat core. This commit identifies two cases where
TheoryProxy::explainPropagation() is called without cleaning up the
assertion stack afterwards. It also adds an assertion that the assertion
stack must be empty when we are getting the unsat core.
Andrew Reynolds [Fri, 13 Jul 2018 15:36:01 +0000 (17:36 +0200)]
sygusComp2018: optimization for collect model info (#2105)
Aina Niemetz [Fri, 13 Jul 2018 10:04:49 +0000 (03:04 -0700)]
New C++ API: Minor reorder. (#2163)
Aina Niemetz [Fri, 13 Jul 2018 08:57:24 +0000 (01:57 -0700)]
New C++ API: Implementation of datatype classes. (#2142)
Aina Niemetz [Fri, 13 Jul 2018 08:06:18 +0000 (01:06 -0700)]
New C++ API: Implementation of Solver class: Consts handling. (#2145)
Caleb Donovick [Wed, 11 Jul 2018 00:27:16 +0000 (17:27 -0700)]
Move rewrite to pass (#2128)
Andres Noetzli [Sun, 8 Jul 2018 20:38:45 +0000 (13:38 -0700)]
Add more sophisticated floating-point sampler (#2155)
This commit adds a floating-point sampler inspired by PyMPF [0]. It also
creates a new Sampler class that can be used for creating random values
of different sorts (currently BV and FP values).
[0] https://github.com/florianschanda/PyMPF
Andrew Reynolds [Sat, 7 Jul 2018 06:49:11 +0000 (07:49 +0100)]
sygusComp2018: improve extended rewriter for Bool (#2107)
Andrew Reynolds [Fri, 6 Jul 2018 19:58:31 +0000 (20:58 +0100)]
Split ext theory to own file and document (#1809)
Martin [Fri, 6 Jul 2018 18:22:57 +0000 (19:22 +0100)]
Feature/fp rewrite improvement (#2154)
Aina Niemetz [Fri, 6 Jul 2018 17:26:00 +0000 (10:26 -0700)]
New C++ API: Implementation of Solver class: Term handling. (#2144)
Aina Niemetz [Fri, 6 Jul 2018 16:53:21 +0000 (09:53 -0700)]
New C++ API: Implementation of Solver class: Sort handling. (#2143)
Andres Noetzli [Fri, 6 Jul 2018 11:03:58 +0000 (04:03 -0700)]
Add option for timeout for rewrite candidate check (#2156)