How to build leon for MacOSX? - leon

Question

I tried to follow the instructions to build leon for MacOSX (yosemite) from the README.md file on github.
It worked well except that when I run the basic test, I get a problem with a scalaz3 library not found:
$ ./leon ./testcases/verification/sas2011-testcases/RedBlackTree.scala
java.lang.UnsatisfiedLinkError: no scalaz3 in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at z3.Z3Wrapper.loadFromJar(Z3Wrapper.java:97)
at z3.Z3Wrapper.<clinit>(Z3Wrapper.java:47)
at z3.scala.Z3Config.<init>(Z3Config.scala:6)
at leon.solvers.z3.FairZ3Solver.<init>(FairZ3Solver.scala:50)
at leon.solvers.SolverFactory$$anonfun$leon$solvers$SolverFactory$$getSolver$1$1$$anon$1.<init>(SolverFactory.scala:50)
at leon.solvers.SolverFactory$$anonfun$leon$solvers$SolverFactory$$getSolver$1$1.apply(SolverFactory.scala:50)
at leon.solvers.SolverFactory$$anonfun$leon$solvers$SolverFactory$$getSolver$1$1.apply(SolverFactory.scala:50)
at leon.solvers.SolverFactory$$anon$12.getNewSolver(SolverFactory.scala:18)
at leon.verification.AnalysisPhase$.checkVC(AnalysisPhase.scala:129)
at leon.verification.AnalysisPhase$$anonfun$10.apply(AnalysisPhase.scala:111)
at leon.verification.AnalysisPhase$$anonfun$10.apply(AnalysisPhase.scala:110)
at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:728)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:727)
at leon.verification.AnalysisPhase$.checkVCs(AnalysisPhase.scala:110)
at leon.verification.AnalysisPhase$.run(AnalysisPhase.scala:45)
at leon.verification.AnalysisPhase$.run(AnalysisPhase.scala:15)
at leon.Pipeline$$anon$1.run(Pipeline.scala:12)
at leon.Pipeline$$anon$1.run(Pipeline.scala:12)
at leon.Main$.execute(Main.scala:236)
at leon.Main$.main(Main.scala:220)
at leon.Main.main(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at scala.reflect.internal.util.ScalaClassLoader$$anonfun$run$1.apply(ScalaClassLoader.scala:70)
at scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)
at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:101)
at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:70)
at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)
at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)
at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:39)
at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)
at scala.tools.nsc.ObjectRunner$.runAndCatch(ObjectRunner.scala:39)
at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:65)
at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)
at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)
at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)
at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)
I tried to build the ScalaZ3 package from EPFL which requires building Microsoft's Z3 (from github). Building z3 itself works find but building ScalaZ3 fails with a missing "gomp" library:
[error] ld: library not found for -lgomp
[error] clang: error: linker command failed with exit code 1 (use -v to see invocation)
[info] Bundling files:
[info] - /Users/rouquett/git.leon/ScalaZ3/lib-bin/libscalaz3.dylib -> lib-bin/libscalaz3.dylib
[info] - /Users/rouquett/git.leon/ScalaZ3/z3/4.3-osx-64b/lib/libz3.dylib -> lib-bin/libz3.dylib
[info] - /Users/rouquett/git.leon/ScalaZ3/z3/4.3-osx-64b/lib/python2.7 -> lib-bin/python2.7
[info] Packaging /Users/rouquett/git.leon/ScalaZ3/target/scala-2.10/scalaz3_2.10-2.1.jar ...
[info] Done packaging.
I found that there is a Clang OMP library here for MacOSX:
http://brewformulas.org
However, this may require tweaking some build scripts to point to brew's installation of clang-omp.
Has anyone experienced similar problems or solved them?
Nicolas.

Answer 1

These are the steps I followed to get the latest version of Leon running on OSX:
git clone git#github.com:epfl-lara/leon.git
cd leon
git remote add osx git#github.com:mantognini/leon.git
git fetch osx
git checkout osx
git rebase origin/master # adds precompiled OSX binaries
sbt clean compile script
Make sure to link the leon binary to your $PATH, for example after the last step run ln -sv $(pwd)/leon /usr/local/bin/leon.
To update the binary to the latest version of Leon, run
git fetch origin
git rebase origin/master
sbt clean compile script
Assuming you are on the osx branch.