Patrick Lühne
69688d1d39
Add integer simplification rule
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This adds the rule “(F in G) === (F = G) if F and G are integer
variables” to the simplification rule tableau
2018-04-29 22:28:42 +02:00
Patrick Lühne
e0509f725a
Replace SimplificationResult with OperationResult
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This replaces the SimplificationResult enum class with OperationResult.
The rationale is that this type, which just reports whether or not an
operation actually changed the input data, is not simplification-
specific and will be used for integer variable detection as well.
2018-04-27 23:37:13 +02:00
Patrick Lühne
48cf8ee3e0
Minor refactoring
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Reorders some include directives lexicographically.
2018-04-27 23:35:43 +02:00
Patrick Lühne
f7d99c82fa
Move Tristate class to Utils header
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The Tristate class (representing truth values that are either true,
false, or unknown) will be used at multiple ends. This moves it to a
separate header in order to reuse it properly.
2018-04-27 23:19:42 +02:00
Patrick Lühne
797660d6de
Add new simplification rule
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This adds the rule “(not F [comparison] G) === (F [negated comparison]
G)” to the simplification rule tableau.
2018-04-11 21:39:27 +02:00
Patrick Lühne
40ddee8444
Add new simplification rule
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This adds the rule “(not F or G) === (F -> G)” to the simplification
rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
6f7b021712
Add new simplification rule
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This adds the rule “(not (F and G)) === (not F or not G)” to the
simplification rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
23624007ec
Add new simplification rule
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This adds the rule “not not F === F” to the simplification rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
6d7b91c391
Add new simplification rule
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This adds the rule “(F <-> (F and G)) === (F -> G)” to the
simplification rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
b88393655a
Iteratively apply simplification tableau rules
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With this change, the tableau rules for simplifying formula are applied
iteratively until a fixpoint is reached.
2018-04-10 22:34:47 +02:00
Patrick Lühne
c4c3156e77
Move simplification rule to tableau
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This moves the rule “[primitive A] in [primitive B] === A = B” to the
simplification rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
107dae7287
Move simplification rule to tableau
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This moves the rule “exists () (F) === F” to the simplification rule
tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
827d6e40fe
Move simplification rule to tableau
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This moves the rule “[conjunction of only F] === F” to the
simplification rule tableau.
2018-04-10 22:34:47 +02:00
Patrick Lühne
4a85fc4b23
Move simplification rule to tableau
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This moves the rule “exists ... ([#true/#false]) === [#true/#false]” to
the simplification rule tableau along with “[empty conjunction] ===
2018-04-10 22:34:46 +02:00
Patrick Lühne
7e3fc007c8
Move simplification rule to tableau
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This moves the rule “exists X (X = t and F(X)) === exists () (F(t))” to
the simplification rule tableau.
2018-04-10 22:34:46 +02:00
Patrick Lühne
5c5411c0ff
Implement simplification rule tableau
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This implements a tableau containing simplification rules that can be
iteratively applied to input formulas until they remain unchanged.
First, this moves the rule “exists X (X = Y) === #true” to the tableau
as a reference implementation.
2018-04-10 22:34:46 +02:00
Patrick Lühne
22238bb398
Switch to C++17
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With C++17, optionals, an experimental language feature, were moved to
the “std” namespace. This makes C++17 mandatory and drops the now
obsolete “experimental” namespace.
2018-03-24 16:09:52 +01:00
Patrick Lühne
5f8c144628
Fixed regression in simplifying predicates with more than one argument.
2017-06-12 18:27:39 +02:00
Patrick Lühne
7ae0a1f289
Removed unnecessary parentheses after simplification.
2017-06-05 03:58:39 +02:00
Patrick Lühne
3b26580815
Minor formatting.
2017-06-05 03:54:17 +02:00
Patrick Lühne
4fd143ef64
Added simplification rule “exists X (X = Y)” → “#true.”
2017-06-05 02:41:17 +02:00
Patrick Lühne
7bf5d3867d
Minor clarification on side effects of a function.
2017-06-05 00:19:43 +02:00
Patrick Lühne
ab71e8eb0a
Minor refactoring.
2017-06-04 20:55:25 +02:00
Patrick Lühne
1917f18b6a
Added back simplification support.
2017-05-30 04:06:56 +02:00
Patrick Lühne
1c925d661b
Major refactoring to uniquely link variables to their declarations (breaks simplification and completion).
2017-05-30 03:56:35 +02:00
Patrick Lühne
6e7abb283e
Fixed minor incorrect variable references.
2017-04-10 17:50:19 +02:00
Patrick Lühne
5940fc4a3b
Removed workarounds thanks to a fix in clingo.
2017-04-01 03:13:52 +02:00
Patrick Lühne
3c79625685
Constrained the element’s type in set element expressions to primitive terms.
2017-03-29 23:56:58 +02:00
Patrick Lühne
dbb106c40b
Fixed typo in comment.
2017-03-29 23:18:59 +02:00
Patrick Lühne
3df4d5a2a2
Fixed incorrectly simplified rules with comparisons.
2017-03-28 17:13:15 +02:00
Patrick Lühne
cae0948763
Completed implementing simplification with deep variable replacement.
2017-03-23 15:02:06 +01:00
Patrick Lühne
42e0217409
Applying simplification to more cases.
2017-03-23 14:40:21 +01:00
Patrick Lühne
574130a8ec
Minor clarifications in simplification code annotations.
2017-03-23 13:44:55 +01:00
Patrick Lühne
188a24f5b5
Added some annotations to the simplification code.
2017-03-23 13:39:34 +01:00
Patrick Lühne
ddbd4061e4
Moved recursive formula visitor to separate header file.
2017-03-23 13:28:09 +01:00
Patrick Lühne
13ed0b013a
Made substitution of variables with terms fully recursive.
2017-03-23 01:00:54 +01:00
Patrick Lühne
825cd4de39
Refactored formula simplification with Clingo’s variants.
2017-03-23 00:44:10 +01:00
Patrick Lühne
bf8cf75369
Implemented advanced simplification (some formulas not covered yet).
2017-03-17 02:42:48 +01:00
Patrick Lühne
fc538eb7fc
Started implementing output simplifications.
2017-03-16 15:45:55 +01:00
Patrick Lühne