[TravisCI] Clean up the configuration matrix.

The main change here try to

* Avoid testing so many metaSMT configurtions
* Avoid testing so many build with STP's master branch
* Avoid testing so many builds that tests klee-uclibc's
  `klee_0_9_29` branch.
* Avoid testing so many LLVM 2.9 builds given that it will
  be deprecated soon.
* Remove coverage build. The server for receving this data
  is dead.

This reduces 24 configurations to test down to just 14.

1 files changed, 26 insertions, 24 deletions

diff --git a/.travis.yml b/.travis.yml
index 822172c7..f559c8c8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,43 +31,45 @@ env:
     #   USE_TCMALLOC: {0, 1}
     #   USE_CMAKE: {0, 1}
 
-    # COVERAGE set indicated that coverage data should be uplaoded to the server, only ONE job should have COVERAGE set
+    # COVERAGE set indicated that coverage data should be uploaded to the server, only ONE job should have COVERAGE set
 
     matrix:
-    # Check KLEE CMake build
+    # FIXME: Enable when we want to test LLVM3.5
+    #- LLVM_VERSION=3.5 SOLVERS=STP:Z3 STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1
+    #- LLVM_VERSION=3.5 SOLVERS=STP:Z3 STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 USE_CMAKE=1
+
+    # TODO: Add ASan build
+    # TODO: Add coverage build
+    # TODO: Add Doxygen build
+
+    # Check KLEE CMake build in a few configurations
     - LLVM_VERSION=3.4 SOLVERS=STP:Z3 STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0 USE_TCMALLOC=1 USE_CMAKE=1
     - LLVM_VERSION=3.4 SOLVERS=metaSMT METASMT_DEFAULT=STP KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0 USE_TCMALLOC=1 USE_CMAKE=1
     - LLVM_VERSION=2.9 SOLVERS=STP:Z3 STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0 USE_TCMALLOC=1 USE_CMAKE=1
 
-    # Test experimental metaSMT support
-    - LLVM_VERSION=3.4 SOLVERS=metaSMT METASMT_DEFAULT=btor KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=metaSMT METASMT_DEFAULT=btor KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=3.4 SOLVERS=metaSMT METASMT_DEFAULT=stp  KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=metaSMT METASMT_DEFAULT=stp  KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=3.4 SOLVERS=metaSMT METASMT_DEFAULT=z3   KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=metaSMT METASMT_DEFAULT=z3   KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    # Test experimental Z3 support
+    # TODO: Port all configurations below to CMake build system
+
+    # Test we can still build with Z3 in the old build sytem
     - LLVM_VERSION=3.4 SOLVERS=Z3 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
     - LLVM_VERSION=2.9 SOLVERS=Z3 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=3.4 SOLVERS=STP:Z3 STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    # FIXME: Enable when we want to test LLVM3.5
-    #- LLVM_VERSION=3.5 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1
-    #- LLVM_VERSION=3.5 STP_VERSION=master KLEE_UCLIBC=1 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1
-    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=1
-    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=klee_0_9_29 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=klee_0_9_29 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
-    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
 
+    # Test we can build against STP master
+    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
+
+    # Check we can build latest klee-uclibc branch
+    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_0_9_29 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
+    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_0_9_29 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
+
+    # Test metaSMT support
+    # TODO: Tests should rerun system tests with different backends.
+    - LLVM_VERSION=3.4 SOLVERS=metaSMT METASMT_DEFAULT=btor KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
+    - LLVM_VERSION=2.9 SOLVERS=metaSMT METASMT_DEFAULT=btor KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0
 
     # Check at least one build with Asserts disabled.
-    - LLVM_VERSION=2.9 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=1 ENABLE_OPTIMIZED=1 COVERAGE=0
+    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=1 ENABLE_OPTIMIZED=1 COVERAGE=0
 
     # Check at least one Debug+Asserts build
-    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=master KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=0 COVERAGE=0
+    - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=0 COVERAGE=0
 
     # Check with TCMALLOC
     - LLVM_VERSION=3.4 SOLVERS=STP STP_VERSION=2.1.2 KLEE_UCLIBC=klee_uclibc_v1.0.0 DISABLE_ASSERTIONS=0 ENABLE_OPTIMIZED=1 COVERAGE=0 USE_TCMALLOC=1