cvc5.git
9 years agoFix oversight in dumping assertions in preprocessing.
Morgan Deters [Tue, 16 Dec 2014 23:04:47 +0000 (18:04 -0500)]
Fix oversight in dumping assertions in preprocessing.

9 years agoAdd cvc parsing support for cardinality constraints. Bug fix for enumerating element...
ajreynol [Fri, 12 Dec 2014 11:03:26 +0000 (12:03 +0100)]
Add cvc parsing support for cardinality constraints.  Bug fix for enumerating elements to meet cardinality lower bounds.

9 years agoMinor fixes to language bindings. (Resolves #607.)
Morgan Deters [Thu, 11 Dec 2014 22:04:29 +0000 (17:04 -0500)]
Minor fixes to language bindings. (Resolves #607.)

9 years agoOption to enable/disable cyclicity check in datatypes.
ajreynol [Thu, 11 Dec 2014 13:09:54 +0000 (14:09 +0100)]
Option to enable/disable cyclicity check in datatypes.

9 years agobug fix, thanks to Guy's example.
Tianyi Liang [Thu, 11 Dec 2014 02:59:32 +0000 (20:59 -0600)]
bug fix, thanks to Guy's example.

9 years agoBetter error description (related to bug 605).
Morgan Deters [Tue, 9 Dec 2014 23:48:55 +0000 (18:48 -0500)]
Better error description (related to bug 605).

9 years agoCleanup.
Morgan Deters [Tue, 9 Dec 2014 23:48:43 +0000 (18:48 -0500)]
Cleanup.

9 years agoAdded string constant in java api example.
Tianyi Liang [Sat, 6 Dec 2014 21:28:52 +0000 (15:28 -0600)]
Added string constant in java api example.

9 years agoMerge branch 'master' of github.com:tiliang/CVC4
Tianyi Liang [Sat, 6 Dec 2014 19:26:39 +0000 (13:26 -0600)]
Merge branch 'master' of github.com:tiliang/CVC4

9 years agoAdded C++/Java api examples;
Tianyi Liang [Sat, 6 Dec 2014 19:24:01 +0000 (13:24 -0600)]
Added C++/Java api examples;
Converted cset to be vector of char, instead of vector of int, since we only accept ascii in input.

9 years agoAdded C++/Java api examples;
Tianyi Liang [Sat, 6 Dec 2014 19:24:01 +0000 (13:24 -0600)]
Added C++/Java api examples;
Converted cset to be vector of char, instead of vector of int, since we only accept ascii in input.

9 years agoFix dt.size care graph.
ajreynol [Sat, 6 Dec 2014 00:26:44 +0000 (01:26 +0100)]
Fix dt.size care graph.

9 years agoRelaxed the constant requirement for regular expression loop;
Tianyi Liang [Fri, 5 Dec 2014 00:17:55 +0000 (18:17 -0600)]
Relaxed the constant requirement for regular expression loop;
Added "ignoring negative membership" option (fragment checking is not provided,
and users must make sure the constraint is in the fragment;
otherwise, the solution may not be correct).

9 years agoclean up and improve intersection
Tianyi Liang [Thu, 4 Dec 2014 22:13:41 +0000 (16:13 -0600)]
clean up and improve intersection

9 years agoFix valgrind-flagged error about uninitialized value.
Morgan Deters [Thu, 4 Dec 2014 06:40:21 +0000 (01:40 -0500)]
Fix valgrind-flagged error about uninitialized value.

9 years agoFix segfault in lambdas when constructed via API.
Morgan Deters [Thu, 4 Dec 2014 06:39:53 +0000 (01:39 -0500)]
Fix segfault in lambdas when constructed via API.

9 years agoFix UnsatCore in language bindings.
Morgan Deters [Thu, 4 Dec 2014 02:58:50 +0000 (21:58 -0500)]
Fix UnsatCore in language bindings.

9 years agoFloating point infrastructure.
Martin Brain [Thu, 4 Dec 2014 02:29:43 +0000 (21:29 -0500)]
Floating point infrastructure.

Signed-off-by: Morgan Deters <mdeters@cs.nyu.edu>
9 years agoMerge branch 'master' of https://github.com/CVC4/CVC4
Kshitij Bansal [Wed, 3 Dec 2014 17:09:14 +0000 (12:09 -0500)]
Merge branch 'master' of https://github.com/CVC4/CVC4

9 years agoRevert "Disable constants sharing in eq engine, disable hack in theory engine."
Kshitij Bansal [Wed, 3 Dec 2014 16:38:36 +0000 (11:38 -0500)]
Revert "Disable constants sharing in eq engine, disable hack in theory engine."

This partially reverts commit f70804a7159390fcb01d8c1ec208fbfd8e544fba.

In particular, it DOES NOT revert
  "Changes to strings solver : modify lemmas/splits to avoid constants, minor refactoring.  Fix assertion failure in quantifiers engine."
which is part of the same commit.

9 years agodisable inter cache
Tianyi Liang [Wed, 3 Dec 2014 05:44:26 +0000 (23:44 -0600)]
disable inter cache

9 years agoSynchronize conjecture generation with E-matching. Minor fix to --full-saturate...
ajreynol [Fri, 28 Nov 2014 15:27:19 +0000 (16:27 +0100)]
Synchronize conjecture generation with E-matching.  Minor fix to --full-saturate-quant.

9 years agoadd intersection rewriting
Tianyi Liang [Thu, 27 Nov 2014 04:09:38 +0000 (22:09 -0600)]
add intersection rewriting

9 years agoMerge branch 'master' of github.com:tiliang/CVC4
Tianyi Liang [Thu, 27 Nov 2014 01:34:37 +0000 (19:34 -0600)]
Merge branch 'master' of github.com:tiliang/CVC4

9 years agoadd more regexp rewriting
Tianyi Liang [Thu, 27 Nov 2014 01:32:32 +0000 (19:32 -0600)]
add more regexp rewriting

9 years agoadd more functions for regular expressions
Tianyi Liang [Thu, 27 Nov 2014 00:11:35 +0000 (18:11 -0600)]
add more functions for regular expressions

9 years agoadd more regexp rewriting
Tianyi Liang [Thu, 27 Nov 2014 01:32:32 +0000 (19:32 -0600)]
add more regexp rewriting

9 years agoadd more functions for regular expressions
Tianyi Liang [Thu, 27 Nov 2014 00:11:35 +0000 (18:11 -0600)]
add more functions for regular expressions

10 years agoFix bug in --term-db-mode=relevant with variable triggers. Support inst-closure...
ajreynol [Tue, 25 Nov 2014 15:15:10 +0000 (16:15 +0100)]
Fix bug in --term-db-mode=relevant with variable triggers.  Support inst-closure predicate and mode --term-db-inst-closure.  Minor changes to theory_quantifiers.

10 years agoadded number of resource units used as a stat
lianah [Sat, 22 Nov 2014 18:11:19 +0000 (10:11 -0800)]
added number of resource units used as a stat

10 years agoThrow error when pattern is not list of terms.
ajreynol [Fri, 21 Nov 2014 09:48:17 +0000 (10:48 +0100)]
Throw error when pattern is not list of terms.

10 years agoChange default option to --inst-when=full-last-call (interleave instantiation and...
ajreynol [Fri, 21 Nov 2014 08:42:07 +0000 (09:42 +0100)]
Change default option to --inst-when=full-last-call (interleave instantiation and theory combination).  Fix inefficiency in NNF, enable by default.  Set best defaults for --mbqi=abs.

10 years agoDisable constants sharing in eq engine, disable hack in theory engine. Changes to...
ajreynol [Thu, 20 Nov 2014 09:56:20 +0000 (10:56 +0100)]
Disable constants sharing in eq engine, disable hack in theory engine.  Changes to strings solver : modify lemmas/splits to avoid constants, minor refactoring.  Fix assertion failure in quantifiers engine.

10 years agoFix #lines in template.
Morgan Deters [Thu, 20 Nov 2014 05:30:33 +0000 (00:30 -0500)]
Fix #lines in template.

10 years agoMaking construction of trigger sets not use the global engine state.
Dejan Jovanović [Thu, 20 Nov 2014 03:42:31 +0000 (22:42 -0500)]
Making construction of trigger sets not use the global engine state.

10 years agoDistribute UnsafeInterruptException interface file for SWIG.
Morgan Deters [Wed, 19 Nov 2014 15:27:59 +0000 (10:27 -0500)]
Distribute UnsafeInterruptException interface file for SWIG.

10 years agoMerge pull request #70 from kbansal/sets-for-merge-squashed
Kshitij Bansal [Wed, 19 Nov 2014 02:50:33 +0000 (21:50 -0500)]
Merge pull request #70 from kbansal/sets-for-merge-squashed

Set Constant's normal form and other short fixes

10 years agoSet Constant's normal form and other short fixes
Kshitij Bansal [Mon, 10 Nov 2014 18:11:20 +0000 (13:11 -0500)]
Set Constant's normal form and other short fixes

Other short fixes:
* use debug tag "theory::assertions::fulleffort" to dump assertions only at FULL_EFFORT
* theoryof-mode fix in smt_engine.cpp
* hack in TheoryModel::getModelValue [TODO: notify Clark/Andy]
* Lemma generation when it rewrites to true/false fix
* TermInfoManager::addTerm(..) fix
* Move SUBSET rewrite to preRewrite
* On preRegister, queue up propagation to be done upfront
** Hospital4 fails when all other fixes have been applied but not this one. Good to have an actual benchmark which relies on this code.
* TheorySetsProperties::getCardinality(..) fix

Thanks to Alvise Rabitti and Stefano Calzavara for reporting some of these; and to Morgan and Clark for help in fixing!

10 years agoclear model cache in BVQuickCheck clearSolver() (fixes bug 587)
Liana Hadarean [Tue, 18 Nov 2014 22:58:34 +0000 (14:58 -0800)]
clear model cache in BVQuickCheck clearSolver() (fixes bug 587)

10 years agoAll Minisat solve calls now return lbool (fixes bug 599)
lianah [Tue, 18 Nov 2014 19:35:02 +0000 (14:35 -0500)]
All Minisat solve calls now return lbool (fixes bug 599)

10 years agoCompute model basis only for fmf. Add another co-datatype regression.
ajreynol [Tue, 18 Nov 2014 17:44:48 +0000 (18:44 +0100)]
Compute model basis only for fmf.  Add another co-datatype regression.

10 years agoAdd local theory extensions instantiation strategy (incomplete). Refactor how defaul...
ajreynol [Tue, 18 Nov 2014 16:39:05 +0000 (17:39 +0100)]
Add local theory extensions instantiation strategy (incomplete).  Refactor how default options are set for quantifiers.  Minor improvement to datatypes.  Add unsat co-datatype regression.  Clean up instantiation engine.  Set inst level 0 on introduced constants for types with no ground terms.  Return introduced constant for variable trigger when no ground terms exist.

10 years agoadded command line option for extractArith bv rewrite
lianah [Mon, 17 Nov 2014 23:40:26 +0000 (18:40 -0500)]
added command line option for extractArith bv rewrite

10 years agoShort-circuit in TheoryArithPrivate::check(), care of Tim.
Morgan Deters [Mon, 17 Nov 2014 14:33:55 +0000 (09:33 -0500)]
Short-circuit in TheoryArithPrivate::check(), care of Tim.

10 years agoNew, uniform checkTime statistic for all theories (as discussed in meeting).
Morgan Deters [Thu, 13 Nov 2014 00:42:23 +0000 (19:42 -0500)]
New, uniform checkTime statistic for all theories (as discussed in meeting).

10 years agoResource-limiting work.
Liana Hadarean [Mon, 17 Nov 2014 20:26:42 +0000 (15:26 -0500)]
Resource-limiting work.

Signed-off-by: Morgan Deters <mdeters@cs.nyu.edu>
10 years agoAdd term db mode. Minor changes to quantifiers rewriter: split ITE's where equality...
ajreynol [Sun, 16 Nov 2014 15:38:50 +0000 (16:38 +0100)]
Add term db mode.  Minor changes to quantifiers rewriter: split ITE's where equality resolution is possible on condition, pull nested quantifiers from ITE branches.  Minor cleanup.

10 years agoBe lazier to consider EQC in UF+cardinality solver. Minor cleanup.
ajreynol [Fri, 14 Nov 2014 11:25:07 +0000 (12:25 +0100)]
Be lazier to consider EQC in UF+cardinality solver.  Minor cleanup.

10 years agoMinor changes to AUTHORS and COPYING
Clark Barrett [Thu, 13 Nov 2014 23:13:49 +0000 (15:13 -0800)]
Minor changes to AUTHORS and COPYING

10 years agoMinor adjustments to wording.
Morgan Deters [Thu, 13 Nov 2014 22:02:24 +0000 (17:02 -0500)]
Minor adjustments to wording.

10 years agoCopyright text fixes.
Morgan Deters [Thu, 13 Nov 2014 21:37:19 +0000 (16:37 -0500)]
Copyright text fixes.

10 years agoMerge pull request #69 from mdeters/bug594
Morgan Deters [Thu, 13 Nov 2014 18:35:46 +0000 (13:35 -0500)]
Merge pull request #69 from mdeters/bug594

Fix memory leak in CDHashMap<> with Node keys (resolves bug 594).

10 years agoRemove two obsolete versions of MBQI.
ajreynol [Thu, 13 Nov 2014 11:17:46 +0000 (12:17 +0100)]
Remove two obsolete versions of MBQI.

10 years agoMore preparation for filtering relevant terms in TermDb.
ajreynol [Thu, 13 Nov 2014 09:43:57 +0000 (10:43 +0100)]
More preparation for filtering relevant terms in TermDb.

10 years agoPossible fix for bug594
Morgan Deters [Tue, 11 Nov 2014 21:21:37 +0000 (16:21 -0500)]
Possible fix for bug594

10 years agoMerge pull request #65 from mdeters/bv-ineq-cachefix
Morgan Deters [Thu, 13 Nov 2014 04:26:16 +0000 (23:26 -0500)]
Merge pull request #65 from mdeters/bv-ineq-cachefix

Fix BV inequality solver caching, and TNode fix.

10 years agoBV inequality graph TNode fix.
Morgan Deters [Wed, 12 Nov 2014 17:31:00 +0000 (12:31 -0500)]
BV inequality graph TNode fix.

10 years agoFix BV inequality solver caching.
Morgan Deters [Wed, 12 Nov 2014 12:46:02 +0000 (07:46 -0500)]
Fix BV inequality solver caching.

10 years agoFix tokenization of "reset" in SMT-LIB v2.0. It's a reserved word only in 2.5.
Morgan Deters [Wed, 12 Nov 2014 13:29:00 +0000 (08:29 -0500)]
Fix tokenization of "reset" in SMT-LIB v2.0.  It's a reserved word only in 2.5.

10 years agoMinor cleanup.
Morgan Deters [Mon, 10 Nov 2014 14:34:32 +0000 (09:34 -0500)]
Minor cleanup.

10 years agoMerge pull request #64 from mdeters/theorysets-hashset-iteration
Kshitij Bansal [Tue, 11 Nov 2014 19:01:47 +0000 (14:01 -0500)]
Merge pull request #64 from mdeters/theorysets-hashset-iteration

Update TheorySets to use CDHashSet<>::key_begin() / key_end().

10 years agoWork on synchronizing decision=justification and E-matching.
ajreynol [Tue, 11 Nov 2014 10:38:35 +0000 (11:38 +0100)]
Work on synchronizing decision=justification and E-matching.

10 years agoMerge pull request #63 from mdeters/theorystrings-hashset-iteration
Tianyi Liang [Mon, 10 Nov 2014 19:48:17 +0000 (13:48 -0600)]
Merge pull request #63 from mdeters/theorystrings-hashset-iteration

Update TheoryStrings to use CDHashSet<>::key_begin() / key_end().

10 years agoBug 593 fix: if the type is finite, it is now considered for detecting theories of...
Dejan Jovanović [Fri, 7 Nov 2014 17:31:26 +0000 (12:31 -0500)]
Bug 593 fix: if the type is finite, it is now considered for detecting theories of nested terms.

10 years agoDo not eliminate variables only occurring in patterns. Minor improvements to sort...
ajreynol [Mon, 10 Nov 2014 14:53:51 +0000 (15:53 +0100)]
Do not eliminate variables only occurring in patterns.  Minor improvements to sort inference.  Remove unused code.

10 years agoMerge branch '1.4.x'
Morgan Deters [Mon, 10 Nov 2014 00:02:42 +0000 (19:02 -0500)]
Merge branch '1.4.x'

10 years agoUpdate TheorySets to use CDHashSet<>::key_begin() / key_end().
Morgan Deters [Sun, 9 Nov 2014 23:20:28 +0000 (18:20 -0500)]
Update TheorySets to use CDHashSet<>::key_begin() / key_end().

10 years agoUpdate TheoryStrings to use CDHashSet<>::key_begin() / key_end().
Morgan Deters [Sun, 9 Nov 2014 23:20:32 +0000 (18:20 -0500)]
Update TheoryStrings to use CDHashSet<>::key_begin() / key_end().

10 years agoWork around an apparent bug in libc++ that was causing crashes on Mac..
Morgan Deters [Sat, 8 Nov 2014 20:13:24 +0000 (15:13 -0500)]
Work around an apparent bug in libc++ that was causing crashes on Mac..

10 years agoFix a deterministic assignment-ordering for get-assignment (fixes a regression failur...
Morgan Deters [Sun, 9 Nov 2014 23:20:04 +0000 (18:20 -0500)]
Fix a deterministic assignment-ordering for get-assignment (fixes a regression failure on Mac).

10 years agoIncrease stack size when running regressions (fixes some regression crashes on Mac).
Morgan Deters [Sun, 9 Nov 2014 23:53:11 +0000 (18:53 -0500)]
Increase stack size when running regressions (fixes some regression crashes on Mac).

10 years agoFix dt shared terms issue, reenable regression.
ajreynol [Sun, 9 Nov 2014 11:17:55 +0000 (12:17 +0100)]
Fix dt shared terms issue, reenable regression.

10 years agoFix bug with incremental+datatypes. Minor cleanup. Disable regression bug484, enabl...
ajreynol [Sat, 8 Nov 2014 16:42:50 +0000 (17:42 +0100)]
Fix bug with incremental+datatypes.  Minor cleanup.  Disable regression bug484, enable parsing_ringer.

10 years agoMerge pull request #62 from mdeters/bv-cleanup
Morgan Deters [Sat, 8 Nov 2014 15:52:22 +0000 (10:52 -0500)]
Merge pull request #62 from mdeters/bv-cleanup

Remove some unused variables.

10 years agoRemove some unused variables.
Morgan Deters [Sat, 8 Nov 2014 01:43:53 +0000 (20:43 -0500)]
Remove some unused variables.

10 years agoFixed bug in model builder with subtypes
Clark Barrett [Sat, 8 Nov 2014 00:40:54 +0000 (16:40 -0800)]
Fixed bug in model builder with subtypes

10 years agoRemove some dead code.
Morgan Deters [Fri, 7 Nov 2014 23:59:36 +0000 (18:59 -0500)]
Remove some dead code.

10 years agoFix a memory leak in SatSolverRegistry (re: bug #594).
Morgan Deters [Fri, 7 Nov 2014 22:55:30 +0000 (17:55 -0500)]
Fix a memory leak in SatSolverRegistry (re: bug #594).

10 years agoFix memory issues in bitvector theory, which is now valgrind-clean (mostly resolves...
Morgan Deters [Fri, 7 Nov 2014 22:24:35 +0000 (17:24 -0500)]
Fix memory issues in bitvector theory, which is now valgrind-clean (mostly resolves bug #594).

10 years agoMerge branch '1.4.x'
Morgan Deters [Fri, 7 Nov 2014 21:59:09 +0000 (16:59 -0500)]
Merge branch '1.4.x'

Conflicts:
src/smt/model_postprocessor.cpp
test/regress/regress0/Makefile.am

10 years agoFix missing case in Boolean terms rewriting. (Resolves bug #596.)
Morgan Deters [Fri, 7 Nov 2014 21:57:58 +0000 (16:57 -0500)]
Fix missing case in Boolean terms rewriting.  (Resolves bug #596.)

10 years agoMerge branch '1.4.x'
Morgan Deters [Fri, 7 Nov 2014 21:51:26 +0000 (16:51 -0500)]
Merge branch '1.4.x'

Conflicts:
src/smt/model_postprocessor.cpp

10 years agoCorrected fix for missing case in model postprocessor (resolves bug #595).
Morgan Deters [Fri, 7 Nov 2014 21:16:57 +0000 (16:16 -0500)]
Corrected fix for missing case in model postprocessor (resolves bug #595).

10 years agoEnable --quant-cf by default. Fix bug in qcf for mixed Int/Real. Minor improvement...
ajreynol [Fri, 7 Nov 2014 16:38:53 +0000 (17:38 +0100)]
Enable --quant-cf by default.  Fix bug in qcf for mixed Int/Real.  Minor improvement to performance of E-matching.

10 years agoRevert "Fix missing case in model postprocessor (resolves bug #595)."
Morgan Deters [Fri, 7 Nov 2014 15:16:00 +0000 (10:16 -0500)]
Revert "Fix missing case in model postprocessor (resolves bug #595)."

This reverts commit 61042cf551b19d06673be2b069bacc7cb1cd775a.

10 years agoRevert "Fix missing case in model postprocessor (resolves bug #595)."
Morgan Deters [Fri, 7 Nov 2014 15:15:41 +0000 (10:15 -0500)]
Revert "Fix missing case in model postprocessor (resolves bug #595)."

This reverts commit 61042cf551b19d06673be2b069bacc7cb1cd775a.

Conflicts:
test/regress/regress0/Makefile.am

10 years agoUpdate competition build rules.
Morgan Deters [Mon, 27 Oct 2014 23:29:22 +0000 (19:29 -0400)]
Update competition build rules.

10 years agoMerge branch '1.4.x'
Morgan Deters [Fri, 7 Nov 2014 14:24:15 +0000 (09:24 -0500)]
Merge branch '1.4.x'

Conflicts:
test/regress/regress0/Makefile.am

10 years agoFix missing case in model postprocessor (resolves bug #595).
Morgan Deters [Fri, 7 Nov 2014 14:22:11 +0000 (09:22 -0500)]
Fix missing case in model postprocessor (resolves bug #595).

10 years agoProperly distinguish which EQC to assign values in datatypes, use assertRepresentativ...
ajreynol [Fri, 7 Nov 2014 10:37:43 +0000 (11:37 +0100)]
Properly distinguish which EQC to assign values in datatypes, use assertRepresentative.  Disable regression related to records.  Enable fmf-fun related regression (modified).  Apply modified version of Morgan's patch to fix tuples/records in model.  Fix bug with sort inference + patterns.  Minor infrastructure.

10 years agoMinor fix for getInstCons
ajreynol [Thu, 6 Nov 2014 13:05:08 +0000 (14:05 +0100)]
Minor fix for getInstCons

10 years agoReenable regression. Add (for now, disabled) changes to datatypes theory combination...
ajreynol [Thu, 6 Nov 2014 10:41:35 +0000 (11:41 +0100)]
Reenable regression.  Add (for now, disabled) changes to datatypes theory combination.  Relax communication of dt facts.

10 years agoFix model bug in --mbqi=fmc. Minor cleanup in datatypes.
ajreynol [Wed, 5 Nov 2014 18:57:24 +0000 (19:57 +0100)]
Fix model bug in --mbqi=fmc.  Minor cleanup in datatypes.

10 years agoMerge branch '1.4.x'
Morgan Deters [Wed, 5 Nov 2014 16:41:11 +0000 (17:41 +0100)]
Merge branch '1.4.x'

10 years agoFix get-bug-attachments script.
Morgan Deters [Wed, 5 Nov 2014 16:41:05 +0000 (17:41 +0100)]
Fix get-bug-attachments script.

10 years agoMore work on datatypes theory combination: fix bug in care graph, do not assign value...
ajreynol [Wed, 5 Nov 2014 14:32:48 +0000 (15:32 +0100)]
More work on datatypes theory combination: fix bug in care graph, do not assign values for EQC of datatype type that contain only terms belonging to other theories, do not treat APPLY_UF as congruence operator, communicate equalities involving terms of external kind.  Minor fixes for fun_def_process.  Other minor changes.

10 years agoAdded cache to getModelValue
Clark Barrett [Sun, 2 Nov 2014 03:05:02 +0000 (20:05 -0700)]
Added cache to getModelValue

10 years agoFix cegqi for synthesis without syntax.
ajreynol [Sat, 1 Nov 2014 15:05:49 +0000 (16:05 +0100)]
Fix cegqi for synthesis without syntax.

10 years agoSimplify which lemmas to communicate in dt.
ajreynol [Sat, 1 Nov 2014 13:44:42 +0000 (14:44 +0100)]
Simplify which lemmas to communicate in dt.

10 years agoFix bug 592: introduce skolem for dt instantiate lemma (avoids terms in lemmas being...
ajreynol [Sat, 1 Nov 2014 12:01:31 +0000 (13:01 +0100)]
Fix bug 592: introduce skolem for dt instantiate lemma (avoids terms in lemmas being rewritten).  Minor improvement to dt care graph.  Reenable regressions.