class DivZero extends Theory
Theory representing the SMT-LIB semantics of division and modulo by zero. According to SMT-LIB, division is a total function, and division by zero has to be represented as a unary uninterpreted function.
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- val axioms: Formula
Axioms defining the theory; such axioms are simply added as formulae to the problem to be proven, and thus handled using the standard reasoning techniques (including e-matching).
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- val dependencies: Iterable[Theory]
Optionally, other theories that this theory depends on.
Optionally, other theories that this theory depends on. Specified dependencies will be loaded before this theory, but the preprocessors of the dependencies will be called after the preprocessor of this theory.
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- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- def evalFun(f: IFunApp): Option[ITerm]
Optionally, a function evaluating theory functions applied to concrete arguments, represented as constructor terms.
Optionally, a function evaluating theory functions applied to concrete arguments, represented as constructor terms.
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- Theory
- def evalPred(p: IAtom): Option[Boolean]
Optionally, a function evaluating theory predicates applied to concrete arguments, represented as constructor terms.
Optionally, a function evaluating theory predicates applied to concrete arguments, represented as constructor terms.
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- Theory
- def evaluatingSimplifier(t: IExpression): IExpression
A simplification function that applies the methods
evalFun
andevalPred
to some given expression (but not recursively).A simplification function that applies the methods
evalFun
andevalPred
to some given expression (but not recursively). This is used in theTheory.postSimplifiers
methods.- Definition Classes
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- def extend(order: TermOrder): TermOrder
Add the symbols defined by this theory to the
order
Add the symbols defined by this theory to the
order
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- val functionPredicateMapping: IndexedSeq[(IFunction, Predicate)]
Mapping of interpreted functions to interpreted predicates, used translating input ASTs to internal ASTs (the latter only containing predicates).
- val functionTranslation: Map[IFunction, Predicate]
- val functionalPredicates: Set[Predicate]
Information which of the predicates satisfy the functionality axiom; at some internal points, such predicates can be handled more efficiently
- val functions: IndexedSeq[IFunction]
Interpreted functions of the theory
- def generateDecoderData(model: Conjunction): Option[TheoryDecoderData]
If this theory defines any
Theory.Decoder
, which can translate model data into some theory-specific representation, this function can be overridden to pre-compute required data from a model.If this theory defines any
Theory.Decoder
, which can translate model data into some theory-specific representation, this function can be overridden to pre-compute required data from a model.- Definition Classes
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- final def getClass(): Class[_ <: AnyRef]
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- def iPostprocess(f: IFormula, signature: Signature): IFormula
Optionally, a post-processor that is applied to formulas output by the prover, for instance to interpolants or the result of quantifier elimination.
Optionally, a post-processor that is applied to formulas output by the prover, for instance to interpolants or the result of quantifier elimination. This method will be applied to the formula after calling
Internal2Inputabsy
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- Theory
- def iPreprocess(f: IFormula, signature: Signature): (IFormula, Signature)
Optionally, a pre-processor that is applied to formulas over this theory, prior to sending the formula to a prover.
Optionally, a pre-processor that is applied to formulas over this theory, prior to sending the formula to a prover. This method will be applied very early in the translation process.
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- final def isInstanceOf[T0]: Boolean
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- def isSoundForSat(theories: Seq[Theory], config: Theory.SatSoundnessConfig.Value): Boolean
Check whether we can tell that the given combination of theories is sound for checking satisfiability of a problem, i.e., if proof construction ends up in a dead end, can it be concluded that a problem is satisfiable.
- val modelGenPredicates: Set[Predicate]
Optionally, a set of predicates used by the theory to tell the
PresburgerModelFinder
about terms that will be handled exclusively by this theory.Optionally, a set of predicates used by the theory to tell the
PresburgerModelFinder
about terms that will be handled exclusively by this theory. If a proof goal in model generation mode contains an atomp(x)
, forp
in this set, then thePresburgerModelFinder
will ignorex
when assigning concrete values to symbols.- Definition Classes
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- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- val plugin: None.type
Optionally, a plug-in implementing reasoning in this theory
- def postSimplifiers: Seq[(IExpression) => IExpression]
Optionally, simplifiers that are applied to formulas output by the prover, for instance to interpolants or the result of quantifier.
Optionally, simplifiers that are applied to formulas output by the prover, for instance to interpolants or the result of quantifier. Such simplifiers are invoked by
ap.parser.Simplifier
. By default, this list will only include theevaluatingSimplifier
.- Definition Classes
- Theory
- def postprocess(f: Conjunction, order: TermOrder): Conjunction
Optionally, a post-processor that is applied to formulas output by the prover, for instance to interpolants or the result of quantifier elimination.
Optionally, a post-processor that is applied to formulas output by the prover, for instance to interpolants or the result of quantifier elimination. This method will be applied to the raw formulas, before calling
Internal2Inputabsy
.- Definition Classes
- Theory
- val predicateMatchConfig: PredicateMatchConfig
Information how interpreted predicates should be handled for e-matching.
- val predicates: Seq[Predicate]
Interpreted predicates of the theory
- def preprocess(f: Conjunction, order: TermOrder): Conjunction
Optionally, a pre-processor that is applied to formulas over this theory, prior to sending the formula to a prover.
Optionally, a pre-processor that is applied to formulas over this theory, prior to sending the formula to a prover.
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- val reducerPlugin: ReducerPluginFactory
Optionally, a plugin for the reducer applied to formulas both before and during proving.
Optionally, a plugin for the reducer applied to formulas both before and during proving.
- Definition Classes
- Theory
- val singleInstantiationPredicates: Set[Predicate]
When instantiating existentially quantifier formulas,
EX phi
, at most one instantiation is necessary provided that all predicates inphi
are contained in this set.When instantiating existentially quantifier formulas,
EX phi
, at most one instantiation is necessary provided that all predicates inphi
are contained in this set.- Definition Classes
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- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
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- val totalityAxioms: Conjunction
Additional axioms that are included if the option
+genTotalityAxioms
is given to Princess. - lazy val transitiveDependencies: Iterable[Theory]
Dependencies closed under transitivity, i.e., also including the dependencies of dependencies.
Dependencies closed under transitivity, i.e., also including the dependencies of dependencies.
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- Theory
- val triggerRelevantFunctions: Set[IFunction]
A list of functions that should be considered in automatic trigger generation
- final def wait(arg0: Long, arg1: Int): Unit
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- Deprecated
(Since version 9)