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just the header comments at the top, though. Don't update to this rev if
you don't have time for a complete rebuild, and exclude this rev if you
want to see what's new across a range of commits.
(this commit was certified error- and warning-free by the test-and-commit script.)
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* fix minor issue with s-expr parsing in CVC and SMT grammars
* other minor things
(this commit was certified error- and warning-free by the test-and-commit script.)
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* ITE removal fixed to be context-dependent (on UserContext).
Resolves incrementality bugs 376 and 396 (which had given wrong answers).
* some bugfixes for incrementality that Dejan found (fixes bug 394)
* fix for bug in SmtEngine::getValue() where definitions weren't respected
(partially resolves bug 411, but get-model is still broken).
* change status of microwave21.ec.minimized.smt2 (it's actually unsat, but
was labeled sat); re-enable it for "make regress"
Also:
* --check-model doesn't fail if quantified assertions don't simplify away.
* fix some examples, and the Java system test, for the disappearance of the
BoolExpr class
* add copy constructor to array type enumerator (the type enumerator
framework requires copy ctors, and the automatically-generated copy ctor
was copying pointers that were then deleted, leaving dangling pointers in
the copy and causing segfaults)
* --dump=assertions now implies --dump=skolems
* --dump=assertions:pre-<PASS> and --dump=assertions:post-<PASS> now allow
you to dump before/after a particular preprocessing pass. E.g.,
--dump=assertions:pre-ite-removal or --dump=assertions:post-static-learning.
"--dump=assertions" by itself is after all preprocessing, just before CNF
conversion.
* minor fixes to dumping output
* include Model in language bindings
Minor refactoring/misc:
* fix compiler warning in src/theory/model.cpp
* remove unnecessary SmtEngine::printModel().
* mkoptions script doesn't give progress output if stdout isn't a terminal
(e.g., if it's written to a log, or piped through less(1), or whatever).
* add some type enumerator unit tests
* de-emphasize --parse-only and --preprocess-only (they aren't really "common"
options)
* fix some exception throw() specifications in SmtEngine
* minor documentation clarifications
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* respect output lang
* fix export variable for BOUND_VARIABLE
* support export of SUBRANGE_TYPE
* statistic for lastWinner, other minor stat changes
* fix running of multiple threads on checsat/query
* changes of Assert -> assert which became private
* fix some destruction time order issues
* fix Pickler with AssertionException going private
Fixed by not fixing:
* portfolio+datatypes does not work
- added ExportUnsupportedException to more places, switches
to sequential
(still TODO / decide : not switch silently, but print error)
> note: this exception now needs to be (and is) defined in expr.h
Known issues:
* problems in portfolio+quantifiers
- at least some problems appear to be because of static variables
(will be later "fixed" like the datatypes)
(this commit was certified error- and warning-free by the test-and-commit script.)
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(this commit was certified error- and warning-free by the test-and-commit script.)
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* --early-exit and --no-early-exit command line options (the former is default for all builds except debug builds)
* New SEXPR kind for doing lists of things (we previously used TUPLEs for this purpose, but TUPLEs will be used in future by the datatypes theory, and so cannot have function symbols in them, etc.).
* SMT-LIB compliant output for (set-option :produce-unsat-cores true) and (get-unsat-core)
(this commit was certified error- and warning-free by the test-and-commit script.)
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meeting last week. The SmtEngine now subscribes to NodeManager events,
does appropriate dumping of variable declarations, and notifies the Model
class.
The way to create a skolem is now:
nodeManager->mkSkolem("myvar_$$", TypeNode, "is a variable created by the theory of Foo")
The first argument is the name of the skolem, and the (optional) "$$" is a
placeholder for the node id (to get a unique name). Without a "$$", a "_$$"
is automatically appended to the given name.
The second argument is the type.
The (optional, but recommended) third argument is a comment, used by the
dump infrastructure to indicate what the variable is for / who owns it.
An optional fourth argument (not shown) allows you to specify flags that
control the behavior (e.g., don't do notification, and/or don't make a
unique name). Look at the documentation for details on these.
In particular, the above means you can't just do a mkSkolem(boolType) for
example---you have to specify a name and (hopefully also,
but it's optional) a comment. This leads to easier debugging than the
anonymous skolems before, since we'll be able to track where the skolems
came from.
Much of the Model and Dump stuff, as well as some Command stuff, is cleaned up
by this commit. Some remains to be cleaned up.
(this commit was certified error- and warning-free by the test-and-commit script.)
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(this commit was certified error- and warning-free by the test-and-commit script.)
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A "command executer" layer between parsing commands and invoking them.
New implementation of portfolio driver splits only when check-sat or query
command is encountered, and then switches back to sequential till the next
one. As side effect, restores functionality of interactive mode and
push/pops.
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College London (via Peter Collingbourne):
cvc4-0001-Look-for-cxxtestgen-as-well-as-cxxtestgen.pl-and-cxx.patch
* better checking for cxxtest
cvc4-0002-Do-not-read-an-additional-command-after-failure.patch
* more correct failure behavior for interactive tools
cvc4-0003-Only-exit-when-encountering-a-CommandFailure.patch
* don't consider "unsupported" as a failure (accepted with modifications)
cvc4-0004-Produce-SMT-LIB-v2-conformant-output-for-get-info.patch
* better get-info responses (accepted with modifications)
These patches will help the group build Boogie support for CVC4.
(this commit was certified error- and warning-free by the test-and-commit script.)
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collectModelInfo with fullModel argument, most theory-specific implementation out of the model class, model printer relegated to printer classes. Also updates to finite mode finding, modifications to datatypes making them compatible with theory combination, support for theory-specific handling of user attributes, refactoring of uf models
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Also some cleanup of option-related exceptions infrastructure.
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1. changes the way options are declared (see http://church.cims.nyu.edu/wiki/Options)
2. moves module-specific options enumerations (SimplificationMode, DecisionMode, ArithUnateLemmaMode, etc.) to their own header files, also they are no longer inside the Options:: class namespace.
3. includes many SMT-LIBv2 compliance fixes, especially to (set-option..) and (get-option..)
The biggest syntactical changes (outside of adding new options) you'll notice are in accessing and setting options:
* to access an option, write (e.g.) options::unconstrainedSimp() instead of Options::current()->unconstrainedSimp.
* to determine if an option value was set by the user, check (e.g.) options::unconstrainedSimp.wasSetByUser().
* ensure that you have the option available (you have to #include the right module's options.h file, e.g. #include "theory/uf/options.h" for UF options)
*** this point is important. If you access an option and it tells you the option doesn't exist, you aren't #including the appropriate options.h header file ***
Note that if you want an option to be directly set (i.e., other than via command-line parsing or SmtEngine::setOption()), you need to mark the option :read-write in its options file (otherwise it's read-only), and you then write (e.g.) options::unconstrainedSimp.set(true).
Adding new options is incredibly simple for primitive types (int, unsigned, bool, string, double). For option settings that you need to turn into a member of an enumerated type, you write a custom "handler" for the option---this is no additional work than it was before, and there are many examples to copy from (a good one is stringToSimplificationMode() in src/smt/options_handlers.h).
Benefits of the new options system include:
1. changes to options declarations don't require a full-source rebuild (you only have to rebuild those sources that depend on the set of options that changed).
2. lots of sanity checks (that the same option isn't declared twice, that option values are in range for their type, that all options are documented properly, etc.)
3. consistency: Boolean-valued option --foo gets a --no-foo automatically, documentation is generated consistently, the option-parsing matches the documented option name, etc.
4. setting options programmatically via SmtEngine::setOption() is enabled, and behaves the same as command-line equivalents (including checking the value is in range, etc.)
5. the notion of options being "set by the user" is now primitive; you can use (e.g.) options::unconstrainedSimp.wasSetByUser() instead of having to use (and maintain) a separate Boolean option for the purpose
I've taken lots of care not to break anything. Hopefully, I've succeeded in that.
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- new syntax for rewrite rules
- better rewrite rules theory
- remove the rewriting with rewrite rules during ppRewrite temporarily
- theory can define their own candidate generator
- define a general candidate generator (inefficient ask to every theory)
- split inst_match between the pattern matching used for quantifiers (inst_match.*) and
the one used for rewrite rules (rr_inst_match.*):
- the pattern matching is less exhaustive for quantifiers,
- the one for rewrite rules can use efficient-e-matching.
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* more correct support for get-info responses
* printer infrastructure extended to SExprs
* parser updates to correctly handle symbols and strings
(there were some minor differences from the spec)
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(extended) SMT command get-model. added collectModelInfo and removed getValue from theory interface. merge also includes major updates to finite model finding module (from CASC), added fmf options, some updates to strong solver and quantifiers engine interface. The test recursion_breaker_black currently fails for me on production builds, Morgan is planning to look into this.
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track; (set-option :print-success true) supported, (exit) causes immediate exit regardless of EOF, etc.
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By default, common subexpressions are dagified if they appear > 1 time and are not constants or variables.
This can be changed with --default-expr-dag=N --- N is a threshold such that if the subexpression occurs > N
times, it is dagified; a setting of 0 turns off dagification entirely.
If you notice strange dumping behavior (taking too long to print anything, e.g.), revert to the old behavior
with --default-expr-dag=0 and let me know of the problem.
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different output languages can write "sat", "unsat", etc., in different ways. No output is changed by this commit, but the flexibility is added that Francois wanted at today's meeting.
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* SMT-LIBv2 parser now supports (echo...).
* Dump() gestures can now dump EchoCommands in CVC and SMT-LIB formats.
This can make it much easier to interpret output.
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Dump("foo") << FooCommand(...);
now "dumps" the textual representation of the command (in the current
output language) to a file, IF dumping is on at configure-time, AND the
"muzzle" feature is off, AND the "foo" flag is turned on for the dump
stream during this run.
If it's a portfolio build, the above will also store the command in a
CommandSequence, IF the "foo" flag is turned on for the dump stream
during this run. This is done even if the muzzle is on.
This commit also cleans up some code that used the dump feature (in arrays,
particularly).
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support incrementality.
Some clean-up work will likely follow, but the CNF/Minisat stuff should be
left pretty much untouched.
Expected performance change negligible; slightly better on memory:
http://church.cims.nyu.edu/regress-results/compare_jobs.php?job_id=3705&reference_id=3697&mode=&category=&p=5
Note that there are crashes, but that these are exhibited in the nightly
regression run too!
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* with a patched SWIG, the ocaml bindings build correctly.
** I will provide my patch to the SWIG dev team.
* fixed some class interfaces to play more nicely with SWIG.
* php, perl, tcl now work; examples added.
* improved binding module building and installation.
Also:
Stop #defining NULL ((void*) 0). This has been in cvc4_public.h for
a long, long time, I forget why I added it in the first place, and
it's a very, very bad idea. In C++, certain things are permitted
for NULL that aren't permitted for ((void*) 0), like for instance
implicit conversion to any pointer type. We didn't see an issue
here (until now, when interfacing with SWIG), because GCC is usually
pretty smart at working around such a broken #definition of NULL.
But that's fragile.
New exception-free Command architecture. Previously, some command
invocations were wrapped in a try {} catch() {} and printed out an
error. This is much more consistent now. Each Command invocation
results in a CommandStatus. The status can be "unsupported",
"error", or "success" (these are each derived classes, though, not
strings, so that they can be easily printed in a language-specific
way... e.g., in SMT-LIBv2, they are printed in a manner consistent
with the spec, and "success" is not printed if the print-success
option is off.) All Command functionality are now no-throw
functions, which @cconway reports is a Good Thing for Google
(where all C++ exceptions are suspect), and also I think is much
cleaner than the old way in this instance.
Added an --smtlib2 option that enables an "SMT-LIBv2 compliance
mode"---really it just sets a few other options like strictParsing,
inputLanguage, and printSuccess. In the future we might put other
options into a compliance mode, or we might choose to make it the
default.
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SmtEngine::getProof(), a few other things..
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is defined via API or through input language
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Dumping infrastructure. Can dump preprocessed queries and clauses. Can
also dump queries (for testing with another solver) to see if any conflicts
are missed, T-propagations are missed, all lemmas are T-valid, etc. For a
full list of options see --dump=help.
CUDD building much cleaner.
Documentation and assertion fixes.
Printer improvements, printing of commands in language-defined way, etc.
Typechecker stuff in expr package now autogenerated, no need to manually
edit the expr package when adding a new theory.
CVC3 compatibility layer (builds as libcompat).
SWIG detection and language binding support (infrastructure).
Support for some Z3 extended commands (like datatypes) in SMT-LIBv2 mode
(when not in compliance mode).
Copyright and file headers regenerated.
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* Preprocessing-time, non-clausal, Boolean simplification round to
support "quasi-non-linear rewrites" as discussed at last few meetings.
* --simplification=none is the default for now, but we'll probably
change that to --simplification=incremental. --simplification=batch
is also a possibility. See --simplification=help for details.
* RecursionBreaker<T> now uses a hash set for the seen trail.
* Fixes to TLS stuff to support that.
* Fixes to theory and SmtEngine documentation.
* Fixes to stream indentation.
* Other miscellaneous stuff.
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1. Defines a new type "DatatypeType", a type-constant that holds a Datatype, describing an inductive data type.
2. CVC language parser supports datatypes.
3. CVC language printer now functional.
4. Minor other cleanups.
No performance impact is expected outside of datatypes. I'm verifying that that is the case with a cluster job this morning.
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are somewhat disparate but belonged on the same branch because they were
held back from trunk all for the same reason (to keep the trunk stable
for furious bitvector development). Dejan has now given me the go-ahead
for a merge.
=========================================
THIS COMMIT CHANGES THE THEORY INTERFACE!
=========================================
Theory constructors are expected to take an additional "Valuation*"
parameter that each Theory should send along to the base class
constructor. The base class Theory keeps the Valuation* in a
d_valuation field for use by it and by its derived classes.
Theory::getValue() no longer takes a Valuation* (it is expected
to use d_valuation instead). This allows other theory functions
to take advantage of getValue() for debugging or heuristic
purposes.
TODO BEFORE MERGE TO TRUNK:
****implement BitIterator find() in CDAttrHash<bool>.
Specifically:
* Added QF_BV support for SMT-LIB v2.
* Two adjustments to the theory interface as requested by Tim King:
1. As described above.
2. Theories now have const access to the fact queue through base
class functions facts_begin() and facts_end(); useful for
debugging.
* Added an "Asserted" attribute so that theories can check if something
has been asserted or not (and therefore not propagate it). However, this
has been disabled for now, pending more data on the overhead of it, and
pending discussion at the 3/25/2011 meeting.
* Do not define NDEBUG in MiniSat in assertion-enabled builds (so
that MiniSat asserts are evaluated).
* As a result of the new MiniSat assertions, some --incremental
regressions had to be disabled; also, some bitvectors ?!!
* Bug 71 is resolved by adding a specialization for CDAttrHash<> in the
attribute package.
* Fixes for some warnings flagged by clang.
* System tests have arrived! So far mainly infrastructure for having
system tests, but there is a system test aimed at improving code
coverage of the printer package.
* Minor other adjustments to documentation and coding to be more
conformant to CVC4 policy.
Tests have been performed to demonstrate that these changes have no or
negligible effect on performance. In particular, changing the
CDAttrHash<> doesn't have any real effect on performance or memory right
now, since there is only one context-dependent boolean flag (as soon
as another is added, the effect is noticeable but probably still slight).
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input expression and the second the value (resolves bug 227)
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supported; work on Result type (biggest noticeable change is that CVC4 now outputs lowercase "sat" and "unsat"), Options class moved to src/smt, to allow for future work on runtime configuration via (set-option) command
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define-fun; several set-info, set-option, get-option, get-info improvementss
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preprocessing time
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get-option, get-assertions, get-value, define-sort, define-fun, and declare-sort with arity > 0; SmtEngine doesn't yet support most of these, but will shortly...
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** file-level documentation at the top of the sources. **
This is the "make bugzilla stop bugging me" bugfix commit.
* Remove BackedNodeBuilder<> and collapse NodeBuilder<> hierarchy.
Updated documentation in the file. Resolves bug #99.
* Convenience NodeBuilders (PlusNodeBuilder, OrNodeBuilder, etc.)
moved into a separate file. Partially resolves bug #100.
* Moved isAssociative(Kind) into kind.h (and into the CVC4::kind
namespace) instead of metakind.h (where it was in CVC4::metakind).
This clears up a warning (private #inclusion) from the SMT and SMT2
parsers, and maybe makes more sense anyways, since this is based on
the kind (and not the metakind) of an operator.
* Documentation improvement; doxygen top-level \file gestures, \brief
gestures for files, etc. Changed contrib/update-copyright.pl for
this change, and post-processed to add \brief. Resolves bug #98.
* Removed ExprManager::mkExpr(Kind) and NodeManager::mkNode(Kind).
They no longer made sense. Resolves bug #91.
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+ Context* getContext() -- gets the context
+ ContextMemoryManager* getCMM() -- gets the CMM
+ int getLevel() -- the scope level of the ContextObj's most recent update
+ bool isCurrent() -- true iff the most recent update is the current top level
In particular, the ContextObj::getCMM() call cleans up by TheoryUF's
ECData::addPredecessor() function substantially (re: code review bug #64).
* Fix serious bugs in context operations that corrupted the ContextObj
linked lists. Closes bug #85.
* Identified a bug in the way objects of the "Link" class are
allocated; see bug #96.
* Re-enable context white-box tests that ensure proper links in linked
lists. Closes bug #86.
* Re-enable CDMap<>::emptyTrash(). Closes bug #87.
* Add a tracing option (-t foo or --trace foo) to the driver to enable
Trace("foo") output stream. -d foo implies -t foo.
* Minor clean-up of some TheoryUF code; addition of some documentation
(re: code review bug #64).
* Address some things that caused Doxygen discomfort.
* Address an issue raised in NodeManager's code review (bug #65).
* Remove an inaccurate comment in Attribute code (re: code review bug #61).
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expr/node.h). This removes the warnings we had during compilation,
and heads off a number of potential linking errors due to improper
inlining of private (library-only) stuff in client (out-of-library)
code.
* "configure" now takes some options as part of a "bare-option" build
type (e.g., "./configure debug-coverage" or "./configure production-muzzle").
* split cdo.h, cdlist.h, cdmap.h, and cdset.h from context.h
* split cdlist_black unit test from context_black
* implement CDMap<>.
* give ExprManagers ownership of the context (and have SmtEngine share
that one)
* fix main driver to properly report file-not-found
* fix MemoryMappedInputBuffer class to report reasons for
"errno"-returned system errors
* src/expr/attribute.h: context-dependent attribute kinds now
supported
* test/unit/expr/node_white.h: context-dependent attribute tests
* src/prop/cnf_conversion.h and associated parts of src/util/options.h
and src/main/getopt.cpp: obsolete command-line option, removed.
* src/util/Assert.h: assertions are now somewhat more useful (in debug
builds, anyway) during stack unwinding.
* test/unit/theory/theory_black.h: test context-dependent behavior of
registerTerm() attribute for theories
* src/expr/node_builder.h: formatting, fixes for arithmetic
convenience node builders, check memory allocations
* test/unit/expr/node_builder_black.h: add tessts for addition,
subtraction, unary minus, and multiplication convenience node
builders
* src/expr/attribute.h: more comments
* (various) code formatting, comment cleanup, added throws specifier
to some destructors
* contrib/code-checker: prototype perl script to test (some) code policy
* contrib/indent-settings: command line for GNU indent to indent using
CVC4 style (sort of; this is a work in progress)
* COPYING: legal stuff
* DESIGN_QUESTIONS: obsolete, removed
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