From 91b2a23c7838ebb28594d636b71dd58ccda7b96e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20L=C3=BChne?= <patrick-github@luehne.de>
Date: Sun, 20 Nov 2016 23:52:55 +0100
Subject: [PATCH 1/2] Added a sequential, fixed-horizon meta encoding.

---
 encodings/sequential-horizon.lp | 36 +++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 encodings/sequential-horizon.lp

diff --git a/encodings/sequential-horizon.lp b/encodings/sequential-horizon.lp
new file mode 100644
index 0000000..135a22e
--- /dev/null
+++ b/encodings/sequential-horizon.lp
@@ -0,0 +1,36 @@
+#const horizon=1.
+
+% Check feature requirements
+:- requires(feature(actionCosts)).
+:- requires(feature(axiomRules)).
+:- requires(feature(conditionalEffects)).
+
+% Horizon, must be defined externally
+time(0..horizon).
+
+% Establish initial state
+holds(Variable, Value, 0) :- initialState(Variable, Value).
+
+% Perform actions
+1 {occurs(Action, T) : action(Action)} 1 :- time(T), T > 0.
+
+% Check preconditions
+:- occurs(Action, T), precondition(Action, Variable, Value), not holds(Variable, Value, T - 1), time(T), time(T - 1).
+
+% Apply effects
+caused(Variable, Value, T) :- occurs(Action, T), postcondition(Action, _, Variable, Value).
+modified(Variable, T) :- caused(Variable, Value, T).
+
+holds(Variable, Value, T) :- caused(Variable, Value, T), time(T).
+holds(Variable, Value, T) :- holds(Variable, Value, T - 1), not modified(Variable, T), time(T), time(T - 1).
+
+% Check that variables have unique values
+:- variable(Variable), not 1 {holds(Variable, Value, T) : contains(Variable, Value)} 1, time(T).
+
+% Check mutexes
+:- mutexGroup(MutexGroup), not {holds(Variable, Value, T) : contains(MutexGroup, Variable, Value)} 1, time(T).
+
+% Verify that goal is met
+:- goal(Variable, Value), not holds(Variable, Value, horizon).
+
+#show occurs/2.

From 58e784408c5d1274e834aed513791b652db1151f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20L=C3=BChne?= <patrick-github@luehne.de>
Date: Tue, 22 Nov 2016 02:17:07 +0100
Subject: [PATCH 2/2] Fixed incorrect build status badge in readme.

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index def6fc1..ca6278a 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# plasp [![GitHub Release](https://img.shields.io/github/release/potassco/plasp.svg?maxAge=3600)](https://github.com/potassco/plasp/releases) [![Build Status](https://img.shields.io/travis/potassco/plasp/develop.svg?maxAge=3600&label=build (master))](https://travis-ci.org/potassco/plasp?branch=master) [![Build Status](https://img.shields.io/travis/potassco/plasp/develop.svg?maxAge=3600&label=build (develop))](https://travis-ci.org/potassco/plasp?branch=develop)
+# plasp [![GitHub Release](https://img.shields.io/github/release/potassco/plasp.svg?maxAge=3600)](https://github.com/potassco/plasp/releases) [![Build Status](https://img.shields.io/travis/potassco/plasp/master.svg?maxAge=3600&label=build (master))](https://travis-ci.org/potassco/plasp?branch=master) [![Build Status](https://img.shields.io/travis/potassco/plasp/develop.svg?maxAge=3600&label=build (develop))](https://travis-ci.org/potassco/plasp?branch=develop)
 
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