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* Decouple single invocation techniques from deep embedding techniques. Embed templates for invariant synthesis into grammar instead of as a global substitution. Add regression.
* Update comment on class
* Cleanup
* Comments for sygus type construction.
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* Extend quantifier-free UF solver to higher-order. This includes an extensionality inference, and lazy conversion from APPLY_UF to HO_APPLY terms.Implements collectModelInfo and theory combination for HO_APPLY terms.
* Update comments, minor changes to functions. Update APPLY_UF skolem to be user-context dependent.
* Remove unused NodeList
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The variable `g` could be set multiple times depending on
the options (e.g. a combination of `--dump-unsat-cores`
and `--dump-synth`), which could lead to memory leaks and
missing output. This commit fixes the issue by replacing
`g` with a list of `getterCommands` that are all executed and
deleted.
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Commit 54d24c786d6a843cc72dfb5e377603349ea5e420 was
changing CVC4 to handle certain non-fatal errors
(such as calling get-unsat-core without a proceding
unsat check-sat command) without terminating the
solver. In the case of get-unsat-cores, the changes
lead to the solver crashing because it was trying to
print an unsat core initialized with the default
constructor, so the member variable d_smt was NULL,
which lead to a dereference of a null pointer.
One of the issues of the way non-fatal errors were
handled was that the error reporting was done in the
invoke() method of the command instead of the
printResult() method, which lead to the error
described above and other issues such as a call to
get-value printing a value after reporting an error.
This commit aims to improve the design by adding a
RecoverableModalException for errors that the solver
can recover from and CommandRecoverableFailure to
communicate that a command failed in a way that does
not prohibit the solver from continuing to execute.
The exception RecoverableModalException is thrown by
the SMTEngine and the commands catch it and turn it
into a CommandRecoverableFailure. The commit changes
all error conditions from the commit above and adds a
regression test for them.
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of instantiation for LIA. (#1111)
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This was introduced by changing the implementation of "isNumber" in this commit:
a94318b
This fixes issue #1105.
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- Update the parser to the new constant construction
- Fix the problem with parsing +/-zero and remove some dead code
- Extend the interface for literal floating-point values.
- Add a constructor so that a parameteric operator structure can be created from a type
- Add constructors so parametric operator constants can be easily converted
- Update SMT2 printing so that it uses the informative output
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Removes the following warning when compiling with gcc version 4.8.4 :
../../../../../src/expr/kind_template.h:95:55: warning: '__visibility__' attribute ignored on non-class types [-Wattributes]
Tested with clang-3.5.
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Floating-point comparison operators are chainable according to the standard.
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This commit enables compression for ccache, increases the cache size to 1GB and
resets the ccache statistics before each run.
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* Remove unhandled subtypes, which consequently makes typing rules uniformly stricter based on weakening the subtype relation. Ensure coercions in the smt2 and cvc parser for Real decimal constants whose type is Integer. Ensure type annotations are computed during preRewrite to ensure rewriting (which does not preserve types) does not impact term construction for parametric datatypes. This fixes issue #1048 (we now give an type exception).
* Update unit test for parametric datatypes to reflect new subtyping relation.
* Remove deprecated test.
* Make array construction for lambdas work with new subtype relations to handle lambdas like (lambda ((x Int) (y Int)) (ite (= x 0) 0.5 0.0)).
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CVC4::Exception. (#1085)
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Changes needed for the bit-blasting floating-point solver which are outside of it's area and / or applicable independently.
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This consists of a binary apply symbol HO_APPLY that returns the result of applying its first argument to its second argument. Update the UF rewriter to ensure that non-standard APPLY_UF applications are rewritten into curried applications of HO_APPLY.
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Add isConst check for lambda expressions by conversions to and from an Array representation where isConst is implemented. This enables check-model to succeed on higher-order benchmarks. Change the builtin rewriter for lambda to attempt to put lambdas into constant form. Update regression.
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This commit uses a workaround [0] to get ccache to work
with Clang on Travis.
[0] https://github.com/travis-ci/travis-ci/issues/5383#issuecomment-224630584
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This is required for reasoning higher-order, since we may have equalities between functions, which are operators of APPLY_UF terms.
This commit gets around the previous 1% slowdown by modifying the changes to the equality engine to be minimal impact. Previously the "isInternal" flag could be reset to false after a term is marked as internal=true. This provides an interface for whether operators of a kind should be marked as internal=false from the start. When using higher-order, APPLY_UF operators will be marked as being external when the higher-order option ufHo is set to true.
This has <.001% impact on performance on QF smtlib : https://www.starexec.org/starexec/secure/details/job.jsp?id=24445
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Commit 62b673a6b8444c14c169a984dd6e3fc8f685851e remove most of the
record/tuple infrastructure but did not remove the classes RecordSelect and
TupleSelect which lead to issues with Java bindings (the references to the
corresponding mkConst implementations could not be resolved). This commit
removes the remaining traces of those classes.
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Enable ccache on Travis for faster compile times. Also
disable debug symbols for the debug builds on Travis to
use the available cache more efficiently. Note: this
change only works on GCC, support for Clang will require
additional changes but the time savings should already be
pretty significant.
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* Initial infrastructure for BV instantiation via word-level inversions.
* Minor clean up.
* Change visited to unordered set.
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TheoryStrings::normalizeRegexp. Minor code reorganization and applying clang-tidy to the function. (#1079)
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root cause is that d_normal_forms_exp[r[0]] could have referred to different vectors (as operator[] is inserting for maps). (#1080)
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* Ensure that expand definitions is called on all non-variable expressions. In particular, it is necessary that the sets theory is notified when a set universe term occurs in the input to ensure options are set correctly. The commit moves this check from within check() to expandDefinitions(), and also adds the check for join image which relies on universe set. This fixes a bug reported by Arjun. Add and update regressions.
* Add comments concerning expandDefinitions
* Expand comment, move to .h
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* Remove support for conversions between uint32/uint16 and string.
* Temporarily disable regression.
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Until now, all travis builds where built with gmp. This commit adds an additional debug build built with cln.
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This commit adds two jobs (debug, with portfolio, test groups 0 and 1) to Travis.
Both jobs are added using matrix.include, based on the example in the documentation:
https://docs.travis-ci.com/user/languages/cpp/#GCC-on-Linux . This
unfortunately requires some code duplication but there does not seem to be a
way to do it in a much better fashion.
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Commit 546d795470ca7c30fc62fe9b6c7b8e5838e1eed4
caused our nightly builds to fail because it did
not replace CVC4_THREADLOCAL with
CVC4_THREAD_LOCAL in interactive_shell. This
commit fixes the issue and adds readline to
Travis, s.t. readline related code gets compiled
as part of our CI tests.
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constraints from user input, add regressions. (#1060)
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C++11 introduced the thread_local keyword, so we don't need to use
non-standard extensions or our custom pthread extension anymore.
The behavior was previously introduced as a workaround in commit
753a072c542c1c254d7c6adbf10e091ba585ede5. This commit
introduces the macro CVC4_THREAD_LOCAL that can be used to
declare variables as thread local. For Swig, this macro is defined to
be empty.
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Fix model construction for parametric types so that we enumerate types in order of dependencies, and avoid subterms of previously enumerated values.
There was a bug in model construction for parametric types which was related to enumerating values that are subterms of other previously enumerated values created during model construction (which were not recorded).
This commit adds all subterms of values we enumerate to the "already used value" sets of their respective types, as reflected in the changes to TypeSet.
There is an extra wrinkle in making the above change, which was caught by the regression test/regress/regress0/fmf/dt-proper-model.smt2. The issue is specific to finite model finding and can be corrected by ensuring that base types (e.g. uninterpreted sorts) are enumerated first.
The change to TheoryModel::buildModel that replaces "allTypes" with "type_list" fixes this wrinkle. This constructs a partially ordered list of types where T1 comes before T2 if values of T2 can contain terms of type T1 but not vice versa. Ordering our enumeration in this way is probably a good idea in general. This ensures we enumerate values for equivalence classes of e.g. Int before (Array Int Int) and means we exclude fewer intermediate values during model construction.
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Coverity works without the SSL certificate workaround and is not needed anymore. Note that we don't require sudo anymore and we could switch to container-based Travis builds (instead of VM-based). However, container-based environments only provide 4G of memory (instead of 7.5G for VMs) , which is not enough for the current CVC4 build environment.
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Before this commit, we were downloading cxxtest from Sourceforge. This commit
instead installs the Ubuntu package, which is easier and more reliable. Instead
of adding the package to the list of packages for Coverity and the common list
of packages, this commit changes the Coverity package list to just refer to the
common list of packages.
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LFSC now lives outside of the CVC4 repository and is not part of the CVC4 distribution
anymore. As a consequence, we
+ Add --with-lfsc and --with-lfsc-directory as configure options.
In the case where CVC4 has not been built with integrated LFSC, all code that interacts with
LFSC is disabled.
+ Disable proof checking if CVC4_USE_LFSC is not defined.
Configuring the build with --check-proofs but without --with-lfsc results in an error.
+ Do not call LFSC's cleanup function (but we should in the future).
LFSC checker segfaults during cleanup on regression testcase regress0/bv/core/bitvec7.smt.
Disabled call to lfscc_cleanup until the problem in lfscc is fixed.
+ Disable building with LFSC for the distcheck travis build since it is not part of the distribution
anymore. Further, make distcheck with LFSC would require to call contrib/get-lfsc-checker
before calling make check on the temp build (the build of the unpacked distribution tar ball).
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Algorithm was previously removed from src/util/regexp.h which broke
compilation on some platforms.
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Cleaning up the CVC4::String class.
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