Z3-str2 is a string theory plug-in built on the powerful Z3 SMT solver.

Z3-str2 treats strings as a primitive type, thus avoiding the inherent limitations observed in many existing solvers that encode strings in terms of other primitives.

Please refer to https://sites.google.com/site/z3strsolver/

1. Check out the latest version of Z3-str2 from the git repo.

2. Download the source code of Z3 4.1.1

MD5 SUM: c0c2367e4de05614a80b3f62480c23db z3-src-4.1.1.zip

3. Unzip "z3-src-4.1.1.zip" and patch the original Z3. Z3-str2 will work with the modified Z3 core.

   • How to patch Z3 core. Suppose the folder name after unzipping is "z3".

     • $ cp z3.patch z3/
     • $ cd z3
     • $ patch -p0 < z3.patch

4. In the top level folder of Z3 Build the modifed version of Z3

   • $ autoconf

   • $ ./configure

   • $ make

   • $ make a

5. Build Z3-str2

   • Modify variable "Z3_path" in the Z3-str2 Makefile to indicate the patched Z3 location.

     • $ make

6. Setup Z3-str2 driver script

   • In "Z3-str.py", change the value of the variable "solver" to point to the Z3-str2 binary "str" just built

7. Run Z3-str2

   • Z3-str.py -f <inputFile>, e.g

   • $./Z3-str.py -f tests/concat-002

Z3 is a theorem prover from Microsoft Research. Z3 is licensed under MSR-LA (Microsoft Research License Agreement). See http://z3.codeplex.com/license for more information about this license. Z3 can be built using Visual Studio Command Prompt, Visual Studio and make/gcc.

1. Building Z3 on Windows using Visual Studio Command Prompt

• Open a Visual Studio Command Prompt, then execute one of the following commands to build the desired component.

• For building all components, execute msbuild z3-prover.sln /p:configuration=external All components will be located at /external

• For building all components (64-bit), execute msbuild z3-prover.sln /p:configuration=external_64 /p:platform=x64 All components will be located at /external_64

• For building all components (in debug mode), execute msbuild z3-prover.sln All components will be located at /debug

1. Building Z3 using g++/make Your machine must also have the following commands to be able to build Z3: autoconf, sed, awk, dos2unix commands

• Open a shell

• For building the z3 executable, execute

  autoconf ./configure make

The z3 executable will be located at bin/external/

• If you want a static library for Z3

  make a

• If you also want the z3 shared library, execute

  make so

  for libz3.so (on Linux)

  make dylib

  for libz3.dylib (on OSX)

Remark: the Z3 makefile imports the source file list from Visual Studio project files. To add new source files to the Z3 core, you must include them at: lib/lib.vcxproj

~/.profile add the following:

export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64
export PATH=${JAVA_HOME}/bin:${PATH}
export HADOOP_CLASSPATH=${JAVA_HOME}/lib/tools.jar

(Pseudo-Distributed Mode)
http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/SingleCluster.html#Pseudo-Distributed_Operation

1. Format the filesystem:
   $ bin/hdfs namenode -format
   
2. Start NameNode daemon and DataNode daemon:
   $ sbin/start-dfs.sh
   

The hadoop daemon log output is written to the $HADOOP_LOG_DIR directory (defaults to$HADOOP_HOME/logs).
3. Browse the web interface for the NameNode; by default it is available at:

NameNode - http://localhost:50070/

$ bin/hadoop com.sun.tools.javac.Main WordCount.java
$ jar cf wc.jar WordCount*.class

$ bin/hdfs dfs -mkdir /user/
$ bin/hdfs dfs -mkdir /user/xxx/
$ bin/hdfs dfs -mkdir /user/xxx/input/

# put the local file into the hdfs input folder
$ bin/hdfs dfs -put file01 input/
$ bin/hdfs dfs -put file02 input/
$ bin/hdfs dfs -cat /user/xxx/output/part-r-00000

More detail: http://hadoop.apache.org/docs/current/hadoop-mapreduce-client/hadoop-mapreduce-client-core/MapReduceTutorial.html