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  1. Changelog
  2. ==============
  3. This changelog lists only the most important changes. Smaller (bug)fixes as well as non-mature features are not part of the changelog.
  4. The releases of major and minor versions contain an overview of changes since the last major/minor update.
  5. Version 1.3.x
  6. -------------
  7. ### Version 1.3.1 (under development)
  8. - Added support for multi-dimensional quantile queries.
  9. - Allow to quickly check a benchmark from the [Quantitative Verification Benchmark Set](http://qcomp.org/benchmarks/) using the `--qvbs` option.
  10. - Added script `resources/examples/download_qvbs.sh` to download the QVBS.
  11. - If an option is unknown, Storm now suggests similar option names.
  12. - Flagged several options as 'advanced' to clean up the `--help`-message. Use `--help all` to display a complete list of options.
  13. - Support for the new `round` operator in the PRISM language.
  14. - Support for parsing of exact time bounds for properties, e.g., `P=? [F=27 "goal"]`.
  15. - Export of optimal schedulers when checking MDPs with the sparse engine (experimental). Use `--exportscheduler <filename>`.
  16. - JANI: Allow bounded types for constants.
  17. - JANI: Support for non-trivial reward accumulations.
  18. - JANI: Fixed support for reward expressions over non-transient variables.
  19. - DRN: Added support for exact parsing and action-based rewards.
  20. - DRN: Support for placeholder variables which allows to parse recurring rational functions only once.
  21. - Fixed sparse bisimulation of MDPs (which failed if all non-absorbing states in the quotient are initial).
  22. - Support for export of MTBDDs from Storm.
  23. - New settings module `transformation` for Markov chain transformations. Use `--help transformation` to get a list of available transformations.
  24. - Support for eliminating chains of Non-Markovian states in MAs via `--eliminate-chains`.
  25. - `storm-conv` can now apply transformations on a prism file.
  26. - `storm-dft`: Support partial-order for state space generation.
  27. - `storm-dft`: Compute lower and upper bounds for number of BE failures via SMT.
  28. - `storm-dft`: Support for constant failed BEs. Use flag `--uniquefailedbe` to create a unique constant failed BE.
  29. - `storm-dft`: Support for probabilistic BEs via PDEPs.
  30. - Fixed linking with Mathsat on macOS.
  31. - Fixed compilation for macOS Mojave.
  32. - Several bug fixes.
  33. ## Version 1.3.0 (2018/12)
  34. - Slightly improved scheduler extraction
  35. - Environments are now part of the c++ API
  36. - Heavily extended JANI support, in particular:
  37. * arrays, functions, state-exit-rewards (all engines)
  38. * indexed assignments, complex reward expressions (sparse engine)
  39. * several jani-related bug fixes
  40. - New binary `storm-conv` that handles conversions between model files
  41. - New binary `storm-pomdp` that handles the translation of POMDPs to pMCs.
  42. - Maximal progress assumption is now applied while building Markov Automata (sparse engine).
  43. - Improved Unif+ implementation for Markov Automata, significantly reduced memory consumption.
  44. - Added support for expected time properties for discrete time models
  45. - Bug fix in the parser for DRN (MDPs and MAs might have been affected).
  46. - `storm-gspn`: Improved .pnpro parser
  47. - `storm-gspn`: Added support for single/infinite/k-server semantics for GSPNs given in the .pnpro format
  48. - `storm-gspn`: Added option to set a global capacity for all places
  49. - `storm-gspn`: Added option to include a set of standard properties when converting GSPNs to jani
  50. - `storm-pars`: Added possibility to compute the extremal value within a given region using parameter lifting
  51. - `storm-dft`: DFT translation to GSPN supports Don't Care propagation
  52. - `storm-dft`: Support DFT analysis via transformation from DFT to GSPN to JANI
  53. - `storm-dft`: Added SMT encoding for DFTs
  54. - `storm-dft`: Improved Galileo and JSON parser
  55. - Several bug fixes
  56. - Storm uses the `master14` branch of carl from now on
  57. ### Comparison with Version 1.2.0 (details see below)
  58. - Heavily extended JANI-support
  59. - New binary `storm-conv` that handles conversion between model files
  60. - New binary `storm-pomdp` that handles the translation of POMDPs to pMCs.
  61. - `storm-gspn` improved
  62. - Sound value iteration
  63. Version 1.2.x
  64. -------------
  65. ### Version 1.2.3 (2018/07)
  66. - Fix in version parsing
  67. ### Version 1.2.2 (2018/07)
  68. - Sound value iteration (SVI) for DTMCs and MDPs
  69. - Topological solver for linear equation systems and MinMax equation systems (enabled by default)
  70. - Added support for expected total rewards in the sparse engine
  71. - By default, iteration-based solvers are no longer aborted after a given number of steps.
  72. - Improved export for jani models
  73. - A fix in parsing jani properties
  74. - Several extensions to high-level counterexamples
  75. - `storm-parsers` extracted to reduce linking time
  76. - `storm-counterexamples` extracted to reduce linking time
  77. - `storm-dft`: improvements in Galileo parser
  78. - `storm-dft`: test cases for DFT analysis
  79. - Improved Storm installation
  80. - Several bug fixes
  81. ### Version 1.2.1 (2018/02)
  82. - Multi-dimensional reward bounded reachability properties for DTMCs.
  83. - `storm-dft`: transformation of DFTs to GSPNs
  84. - Several bug fixes
  85. ### Version 1.2.0 (2017/12)
  86. - C++ api changes: Building model takes `BuilderOptions` instead of extended list of Booleans, does not depend on settings anymore.
  87. - `storm-cli-utilities` now contains cli related stuff, instead of `storm-lib`
  88. - Symbolic (MT/BDD) bisimulation
  89. - Fixed issue related to variable names that can not be used in Exprtk.
  90. - DRN parser improved
  91. - LP-based MDP model checking
  92. - Sound (interval) value iteration
  93. - Support for Multi-objective multi-dimensional reward bounded reachability properties for MDPs.
  94. - RationalSearch method to solve equation systems exactly
  95. - WalkerChae method for solving linear equation systems with guaranteed convergence
  96. - Performance improvements for sparse model building
  97. - Performance improvements for conditional properties on MDPs
  98. - Automatically convert MA without probabilistic states into CTMC
  99. - Fixed implemention of Fox and Glynn' algorithm
  100. - `storm-pars`: support for welldefinedness constraints in mdps.
  101. - `storm-dft`: split DFT settings into IO settings and fault tree settings
  102. - `storm-dft`: removed obsolete explicit model builder for DFTs
  103. - Features for developers:
  104. * Solvers can now expose requirements
  105. * unbounded reachability and reachability rewards now correctly respect solver requirements
  106. * Environment variables (such as the solver precisions) can now be handled more flexible
  107. * changes to Matrix-Vector operation interfaces, in particular fixed some issues with the use Intel TBB
  108. Version 1.1.x
  109. -------------
  110. ### Version 1.1.0 (2017/8)
  111. - Support for long-run average rewards on MDPs and Markov automata using a value-iteration based approach.
  112. - Storm can now check MDPs and Markov Automata (i.e. MinMax equation systems) via Linear Programming.
  113. - Parametric model checking is now handled in a separated library/executable called `storm-pars`.
  114. - Wellformedness constraints on PMCs:
  115. * include constraints from rewards
  116. * are in smtlib2
  117. * fixed
  118. * computation of only constraints without doing model checking is now supported
  119. - Fix for nested formulae
  120. - JANI: Explicit engine supports custom model compositions.
  121. - Support for parsing/building models given in the explicit input format of IMCA.
  122. - Storm now overwrites files if asked to write files to a specific location.
  123. - Changes in build process to accommodate for changes in carl. Also, more robust against issues with carl.
  124. - `USE_POPCNT` removed in favor of `FORCE_POPCNT`. The popcnt instruction is used if available due to `march=native`, unless portable is set.
  125. Then, using `FORCE_POPCNT` enables the use of the SSE 4.2 instruction
  126. Version 1.0.x
  127. -------------
  128. ### Version 1.0.1 (2017/4)
  129. - Multi-objective model checking support now fully included
  130. - Several improvements in parameter lifting
  131. - Several improvements in JANI parsing
  132. - Properties can contain model variables
  133. - Support for rational numbers/functions in decision diagrams via sylvan
  134. - Elimination-based solvers (exact solution) for models stored as decision diagrams
  135. - Export of version and configuration to cmake
  136. - Improved building process
  137. ### Version 1.0.0 (2017/3)
  138. Start of this changelog