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Calling (reset-assertions) in start mode was not handled correctly.
Additionally, when calling (check-sat) after (reset-assertions) after a
(check-sat) call that answered unsat, we answered unsat instead of sat.
This cleans up and fixes reset-assertions) handling.
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Towards theory of sequences.
Also adds documentation to strncmp/rstrncmp and adds them to the Word interface.
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This adds a utility file for handling operations over constant "words" (this will eventually generalize string or sequence constants). This is work towards CVC4/cvc4-projects#23.
Also improves documentation in regexp.h.
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This commit adds statistics for all resource steps. A resource statistic is incremented by 1 if the resource is spent (via `spendResource`).
Fixes #3751.
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Type rules, parsing and printing, basic rewriting including constant evaluation, reduction for string reverse (`str.rev`).
Also improves support in a few places for tolower/toupper.
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This commit enables compiler warnings for implicit fallthroughs in
switch statements that are not explicitly marked as such. The commit
introduces a new macro `CVC4_FALLTHROUGH` that can be used to indicate
that a fallthrough is intentional. The commit fixes existing warnings
and a bug in the arithmetic rewriter for `abs` (the bug likely couldn't
be triggered easily because we rewrite `abs` to an `ite` while expanding
definitions).
To have the new macro also available in the parser, the commit changes
`src/base/check.h` to be visible to the parser (it includes
`cvc4_private_library.h` now instead of `cvc4_private.h`).
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Fixes #971.
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This commit removes the SMT1 parser infrastructure and adds the SMT2 translations of the SMT1 regression tests. For now this commit removes regression test regress3/pp-regfile.smt since the SMT2 translation has a file size of 887M (vs. 172K for the SMT1 version).
Fixes #2948 and fixes #1313.
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GCC < 5 does not support the move constructor of `std::fstream` (see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54316 for details). This
commit wraps the `std::fstream` in an `std::unique_ptr` to work around
that issue.
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This commit adds support for the theory of floating-point numbers in the
Java API. Previously, floating-point related classes were missing in the
JAR. The commit also provides an example that showcases how to work with
the theory of floating-point numbers through the API.
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Previously, we were just writing temporary files to `/tmp/` but this
commit allows the user to use the `TMPDIR` environment variable to
determine which directory the temporary file should be written to. The
commit adds a helper function for this and also includes some minor
cleanup of existing code.
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This commit enables SymFPU assertions in production. The reason for this
is that there are some known problems with certain bit-widths, so we
prefer to be conservative. The commit also updates the run scripts for SMT-COMP 2019 to use `--fp-exp` since we have those additional checks in place now.
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Fixes #2989. SWIG 3 seems to have an issue properly resolving
`T::const_iterator::value_type` if that type itself is a `typedef`.
This is for example the case in the `UnsatCore` class, which `typedef`s
`const_iterator` to `std::vector<Expr>::const_iterator`. As a
workaround, this commit changes the `JavaIteratorAdapter` class to take
two template parameters, one of which is the `value_type`. The commit
also adds a compile-time assertion that `T::const_iterator::value_type`
can be converted to `value_type` to avoid nasty surprises. A nice
side-effect of this solution is that explicit `typemap`s are not
necessary anymore, so they are removed. Additionally, the commit adds a
`toString()` method for the Java API of `UnsatCore` and adds examples
that show and test the iteration over the unsat core and the statistics.
Iterating over `Statistics` now returns instances of `Statistic` instead
of `Object[]`, which is a bit cleaner and requires less glue code.
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Fixes 2887.
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Use std::shuffle (with Random as the unified random generator) instead
of std::random_shuffle for deterministic, reproducable random shuffling.
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The sources of all previous libraries are now added to libcvc4 and built as
libcvc4. This removes circular dependencies between libcvc4 and libexpr.
Further, we now only have one parser library and don't build additional
libraries for each language.
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TODO: cvc4autoconfig.h
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Further, remove redundant gmp.h include in options_handler.cpp.
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Since we are using C++11, we can replace the triple and quad classes
with std::tuple.
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Fixes #2298. The `get-unsat-assumptions` command was printing the result
with square brackets and commas instead of parentheses and spaces
between the assumptions.
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Removes some hacks due to Swig 2's incomplete C++11 support and adds
checks for version 3 at configuration time as well as in swig.h
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C++11 supports explicitly deleting functions that should not be used
(explictly or implictly), e.g. copy or assignment constructors. We were
previously using the CVC4_UNDEFINED macro that used a compiler-specific
attribute. The C++11 feature should be more portable.
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