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and src
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instantiation strategies moved from instantiators to central instantiation engine, removed instantiator objects, simplified rewrite rules candidate generator to use central equality engine, efficient e-matching now uses central equality engine
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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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model.h/cpp to prepare for release, and major refactoring of quantifiers/finite model finding. Note that new datatype theory does not insist upon any interpretation for selectors applied to incorrect constructors and consequently some answers may differ with previous version
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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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Adds TheoryQuantifiers and TheoryRewriteRules, QuantifiersEngine, and other infrastructure.
Adds theory instantiators to many theories.
Adds the UF strong solver.
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handled natively and not as a generic predicate. The changes also change the order of propagation, and can produce different conflicts. Since the engine is now used everywhere this means that so some crazy results are to be expected.
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* notifications are now through the interface subclass instead of a template
* notifications include constants being merged
* changed contextNotifyObj::notify to contextNotifyObj::contextNotifyPop so it's more descriptive and doesn't clutter methods when subclassed
* sat solver now has explicit methods to make true and false constants
* 0-level literals are removed from explanations of propagations
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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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and not yet finalized but I need to put it in to work further with the theory writers. Please check the files that you 'own'. Any comments or discussion is welcome. Further details will be coming in a follow up email later.
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* Theory::staticLearning() for statically adding new T-stuff before
normal preprocessing. UF's staticLearning() does transitivity of
equality/iff, solving the diamonds.
* more aggressive T-propagation for UF
* new KEEP_STATISTIC macro to hide Theories from having to
register/deregister statistics (and also has the advantage of
keeping the statistic type, field name, and the 'tag' used to output
the statistic in the same place---instead of scattered in the theory
definition and constructor initializer list. See documentation for
KEEP_STATISTIC in src/util/stats.h for more of an explanation).
* more statistics for UF
* restart notifications from SAT (through TheoryEngine) via
Theory::notifyRestart()
* StackingMap and UnionFind unit tests
* build fixes/adjustments
* code cleanup; minor other improvements
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CongruenceClosure implementation; CongruenceClosure white-box test.
New UF theory implementation based on new CC module. This one
supports predicates. The two UF implementations exist in parallel
(they can be selected at runtime via the new command line option
"--uf").
Added type infrastructure for TUPLE.
Fixes to unit tests that failed in 16-August-2010 regressions.
Needed to instantiate TheoryEngine with an Options structure, and
explicitly call ->shutdown() on it before destruction (like the
SMTEngine does).
Fixed test makefiles to (1) perform all tests even in the presence of
failures, (2) give proper summaries of subdirectory tests
(e.g. regress0/uf and regress0/precedence)
Other minor changes.
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building with CLN or with GMP, the contrib/switch-config script
(enabling "fast switching" of different configurations in the same
builds/ directory), and also some minor changes.
./configure --with-gmp (or --without-cln) forces building with GMP
and doesn't even look for CLN. Configure fails if GMP isn't installed.
./configure --with-cln (or --without-gmp) forces building with CLN
and doesn't even look for GMP. Configure fails if CLN isn't installed.
./configure [no arguments] will detect what's installed. CLN is
default, if it isn't installed, or is too old, GMP is looked for (and
configure fails if neither is available).
It is an error to specify --with-gmp --with-cln (or --without-* for
both) at the same time.
Building with CLN (whether forced or detected) adds a note to the
configure output mentioning the fact that the build of CVC4 will be
linked against a GPLed library and notifying the user of the
--without-cln option.
Building with GMP (whether forced or detected) affects the build
directory, so CLN and GMP builds are kept separate.
./configure --with-cln debug builds in builds/$arch/debug
./configure --with-gmp debug builds in builds/$arch/debug-gmp
The final binaries are linked explicitly against either gmp or cln,
but not both. If linked against cln, cln pulls in gmp as a
dependency, so the result will be linked against both.
=== Details that you probably don't care about ===
The headers src/util/{integer,rational}.h are generated from the
corresponding .in versions. A user installing a CVC4-devel package
will get the headers for rational and integer that match the library
that s/he installs.
The preprocessor #defines CVC4_GMP_IMP and CVC4_CLN_IMP are added to
cvc4autoconfig.h. Only one is ever #defined. cvc4autoconfig.h
doesn't need to be #included directly; you get it through #including
cvc4_private.h (or the parser version).
AM_CONDITIONALs are also defined so that Makefiles get the cln/gmp
configuration. AC_SUBSTs are defined so that public headers (see
src/util/{integer,rational}.h.in) can use the setting.
*Public* headers that need to depend on the cln/gmp configuration
can't use cvc4autoconfig.h, because we're keeping that in the private,
internal-only space, never to be installed on users' machines. Here,
something special is required, like the configure-level generation of
headers that I used for src/util/{integer,rational}.h.in.
Tim's Integer and Rational wrappers are the only bits of code that
should care which library is used (and also src/util/configuration.h,
which gives the user of the library information about how CVC4 is
built), and possibly some unit tests (?).
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instead of assuming it's atomic based on kind. Atomicity is
determined at node building time. Fixes bug #81. If this is
determined to make node building too slow, we can allocate another
attribute "AtomicHasBeenComputed" to lazily compute atomicity.
* TheoryImpl<> has gone away. Theory implementations now derive from
Theory directly and share a single RegisteredAttr attribute for term
registration (which shouldn't overlap: every term is "owned" by
exactly one Theory). Fixes bug #79.
* Additional atomicity tests in ExprBlack unit test.
* More appropriate whitebox testing for attribute ID assignment
(AttributeWhite unit test).
* Better (and more correct) assertion checking in NodeBuilderBlack.
* run-regression script now checks exit status against what's provided
in "% EXIT: " gesture in .cvc input files, and stderr against
"% EXPECT-ERROR: ". These can be used to support intended failures.
Fixes bug #84. Also add "% EXIT: " gestures to all .cvc regressions
in repository.
* Solved some "control reaches end of non-void function" warnings in
src/parser/bounded_token_buffer.cpp by replacing
"AlwaysAssert(false)" with "Unreachable()" (which is known
statically to never return normally).
* Regression tests now use the cvc4 binary under
builds/$(CURRENT_BUILD)/src/main instead of the one in bin/ which
may not be properly installed yet at that point of the build.
(Partially fixes bug #46.)
* -fvisibility=hidden is now included by configure.ac instead of each
Makefile.am, which will make it easier to support platforms
(e.g. cygwin) that do things a different way.
* TheoryUF code formatting. (re: my code review bug #64)
* CDMap<> is leaking memory again, pending a fix for bug #85 in the
context subsystem. (To avoid serious errors, can't free context
objects.)
* add ContextWhite unit test for bug #85 (though it's currently
"defanged," awaiting the bugfix)
* Minor documentation, other cleanup.
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recognize an instantiation of the join conversion/copy ctor with
ref_count = ref_count_1 as a copy constructor. Problems with
reference counts ensue.
* src/theory/theory.h, src/theory/theory.cpp: Theory base
implementation work. Changed from continuation-style theory calls
to having an data member for the output channel. registerTerm() and
preRegisterTerm() work.
* src/theory/output_channel.h, src/theory/theory.h,
src/theory/theory.cpp, src/theory/uf/theory_uf.h,
src/theory/uf/theory_uf.cpp: merged ExplainOutputChannel into
OutputChannel.
* test/unit/expr/node_black.h: remove testPlusNode(),
testUMinusNode(), testMultNode().
* src/expr/attribute.h: new facilities ManagedAttribute<> and
CDAttribute<>, and add new template parameters to Attribute<>. Make
CDAttribute<>s work with context manager.
* src/expr/attribute.h, src/expr/node_manager.h: VarNameAttr and
TypeAttr are now "owned" (defined) by the NodeManager. The
AttributeManager knows nothing of specific attributes, it just as
all the code for dealing generically with attributes.
* test/unit/expr/node_white.h: test new attribute facilities.
* src/expr/soft_node.h: removed: We now have TNode, so SoftNode goes
away.
* src/theory/Makefile.am: fixed improper linking of theories
* src/theory/theory_engine.h: some implementation work (mainly stubs
for now, just to make sure TheoryUF can be instantiated properly,
etc.)
* src/expr/node_value.cpp, src/expr/node_value.h: move a number of
function implementations to the header and make them inline
* src/expr/node_manager.cpp, src/expr/node_manager.h: move a number of
function implementations to the header and make them inline
* src/theory/theoryof_table_prologue.h,
src/theory/theoryof_table_epilogue.h, src/theory/mktheoryof,
src/theory/Makefile.am: make the theoryOf() table from kinds and
implement TheoryEngine::theoryOf().
* src/theory/arith/Makefile, src/theory/bool/Makefile: generated these
stub Makefiles (with contrib/addsourcedir) as per policy
* src/theory/arith, src/theory/bool [directory properties]: add .deps
to svn:ignore.
* contrib/configure-in-place: permit configuring "in-place" in the
source directory.
* contrib/get-authors, contrib/dimacs_to_smt.pl,
contrib/update-copyright.pl, contrib/get-authors,
contrib/addsourcedir, src/expr/mkkind: copyright notice
* src/expr/node_manager.h, src/expr/node_builder.h,
src/prop/prop_engine.h, src/prop/prop_engine.cpp,
src/theory/theory_engine.h, src/smt/smt_engine.h, src/smt/smt_engine.cpp,
src/theory/output_channel.h: turn "const Node&"-typed formal
parameters into "TNode"
* src/theory/bool, src/theory/booleans: "bool" directory renamed "booleans"
to avoid keyword clash on containing namespace
* src/theory/booleans/theory_def.h, src/theory/uf/theory_def.h,
src/theory/arith/theory_def.h: "define" a theory simply (for automatic
theoryOf() generator).
* src/Makefile.am: build theory subdirectory before prop, smt, etc. so that
src/theory/theoryof_table.h header gets generated before it's needed
* src/expr/node_prologue.h, src/expr/node_middle.h: move "Kind" into a
separate CVC4::kind namespace to avoid its contents from cluttering
the CVC4 root namespace. Import the symbol "Kind" into the CVC4 namespace
but not the enum values.
* src/expr/node_manager.h, src/expr/node.h, src/expr/node_value.h,
src/expr/node_value.cpp, src/expr/expr.cpp, src/theory/uf/theory_uf.cpp,
src/prop/cnf_stream.cpp, src/parser/smt/smt_parser.g,
src/parser/cvc/cvc_parser.g, src/parser/antlr_parser.cpp,
test/unit/expr/node_white.h, test/unit/expr/node_black.h,
test/unit/expr/kind_black.h, test/unit/expr/node_builder_black.h:
update for having moved Kind into CVC4::kind.
* src/parser/parser.cpp: added file-does-not-exist check (was failing
silently).
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of functionality is stubbed out. Still needs a bit of cleanup.
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Updated contrib/update-copyright to handle Antlr (.g) parser/lexer inputs.
Updated copyright year.
Added a new "bool" theory (right now just to hold a kind.h contribution).
Added "kinds" files to UF and the new "bool" theory.
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Makefile.am files - remove obsolete INCLUDES, incorporate into AM_CPPFLAGS
Makefile files in src/ - support "make" under src/ (current build profile)
configure.ac - updates to fix warnings
config/antlr.m4 - updates to fix warnings
autogen.sh - updates to generate warnings from autotools; also support Macs
src/include/cvc4_config.h - guard with #ifdef
total reimplementation of NodeBuilder
ExprValue => NodeValue
context_mm.{h,cpp} - fixed numerous compile errors
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