JavaSMT 3.0.0

Changes in the API

• New methods to cast different theories, e.g., BV to INT, REAL to INT, and vice versa.
• More function declaration kinds, especially for FP theory.

Improvements and Fixes

• New solver versions:
  • MathSAT: 5.5.4 (Feb 2019)
  • SMTInterpol: 2.5-66-g453d36e
  • other solvers were not updated since the last release
• Improve loading of Jar file for Z3 on Java 9 (and later).

JavaSMT v2.0.0

Changes since 1.0.1

• New solver versions:
  • MathSAT: 5.5.3 (Nov 20 2018)
  • OptiMathSAT: 1.4.0.10
  • Princess: 2018-12-06-assertionless
  • SMTInterpol: 2.5-47-gc0546aa
  • Z3: 4.7.1.0
• Methods for computing a model, unsat core and allsat are moved from ProverEnvironment upwards into BasicProverEnvironment and can now also be used in InterpolatingProverEnvironment
• New methods to convert IEEE bitvectors to floats and vice versa.
• Improved handling of exceptions
• New method for evaluating formulas with an existing model
• New utility methods for escaping and unescaping symbol names to avoid SMT keywords.

Improvements and Fixes

• Improve instantiation procedure of Z3 and Princess
• Remove some non-determinism and prefer deterministic data structures
• Fix model generation for SMTInterpol in case of multiple UF assignments
• ...and many more improvements

JavaSMT v1.0.1

Changes since 0.60:

• New package structure
  • Root package is java_smt
  • Solver bindings are in the package java_smt/solvers
  • User-facing API is in the package java_smt/api, apart from the entry
    point SolverContextFactory
• New solver versions:
  • Z3: 4.4.1-1558-gf96cfea
  • MathSAT: 5.3.12, compiled with GMP6.1.1 with enable-fat option
  • OptiMathSAT: 1.4.0
  • Princess: 2016-06-27-r2652
• Floating point rounding mode can be now specified for all operations in
  FloatingPointFormulaManager.
  Additionally, default rounding mode can be set using an option
  solver.floatingPointRoundingMode.
• Automatic boolean formula simplification for Z3.
• New utils package, with optional utilities. Includes:
  • UfElimination class for performing Ackermannization and returning the
    metadata describing the fresh variables.
• modularCongruence method was moved to IntegerFormulaManager and now
  throws an exception on non-positive input.
• Caching and statistics are moved to the statistics branch.
• Better cancellation handling for Z3
• Add makeTrue() and makeFalse() methods to BooleanFormulaManager
• Added Ackermannization tactic.

JavaSMT v0.60

Changes from v0.51:

• Switched to Java8.
• Change to the API for moving formulas between the contexts: the relevant
  method is now called translateFrom.
• Incompatible public API change: migrated to Java Optional.
  Affects usages of OptimizationProverEnvironment.
• simplify method can throw an InterruptedException.
• Supported options are checked when creating a ProverEnvironment.
• Our custom Z3 JNI is dropped, official JNI bindings from Z3 are used instead.
  z3java solver is dropped as well, since with the same JNI code other Java
  bindings only provide an extra wrapping layer.
• Custom fork of Z3 is no longer required, using custom classloader to load
  Z3 Java bindings.
• Adds getModelAssignments method to ProverEnvironment, which serializes
  the model to a list of assignments.
• Switches to manual closing (try-with-resources) for Model objects.
• Exposes API for calculating UNSAT core over assumptions.
  Assumptions feature is emulated in solvers which do not support it natively.
• More descriptive name for prover options: GENERATE_MODELS,
  GENERATE_UNSAT_CORE, GENERATE_UNSAT_CORE_OVER_ASSUMPTIONS.
• Adds support for floating point theory in Z3.
• Adds recursive transformation visitor for boolean formulas, which does not
  use recursion in its implementation
  (via BooleanFormulaManager#transformRecursively).
• Many miscellaneous bugfixes.

JavaSMT v0.3 release

New Model API, including evaluation of arbitrary ASTs.