X-Git-Url: http://plrg.eecs.uci.edu/git/?p=satune.git;a=blobdiff_plain;f=src%2Fcsolver.h;h=49438b697b1235287cba1a437ec4b17aa63c9f7f;hp=115006f82faaad6403574304d6d4170be42ea42a;hb=974a00584da88dce9c638bd5fd981f2164176e2c;hpb=919a30124bede022af832c5e33e42151f7c38533 diff --git a/src/csolver.h b/src/csolver.h index 115006f..49438b6 100644 --- a/src/csolver.h +++ b/src/csolver.h @@ -1,14 +1,17 @@ #ifndef CSOLVER_H #define CSOLVER_H -#include "classlist.h" +#include "classes.h" #include "ops.h" -#include "structs.h" +#include "corestructs.h" +#include "asthash.h" +#include "solver_interface.h" +#include "common.h" class CSolver { public: CSolver(); ~CSolver(); - + void resetSolver(); /** This function creates a set containing the elements passed in the array. */ Set *createSet(VarType type, uint64_t *elements, uint num); @@ -16,12 +19,22 @@ public: Set *createRangeSet(VarType type, uint64_t lowrange, uint64_t highrange); - /** This function creates a mutable set. */ + bool itemExistInSet(Set *set, uint64_t item); + + VarType getSetVarType(Set *set); + + Element *createRangeVar(VarType type, uint64_t lowrange, uint64_t highrange); + + /** This function creates a mutable set. + * Note: You should use addItem for adding new item to Mutable sets, and + * at the end, you should call finalizeMutableSet! + */ MutableSet *createMutableSet(VarType type); /** This function adds a new item to a set. */ + //Deprecating this unless we need it... void addItem(MutableSet *set, uint64_t element); /** This function adds a new unique item to the set and returns it. @@ -30,6 +43,11 @@ public: uint64_t createUniqueItem(MutableSet *set); + /** + * Freeze and finalize the mutableSet ... + */ + void finalizeMutableSet(MutableSet *set); + /** This function creates an element variable over a set. */ Element *getElementVar(Set *set); @@ -37,26 +55,34 @@ public: /** This function creates an element constrant. */ Element *getElementConst(VarType type, uint64_t value); + Set *getElementRange (Element *element); + + void mustHaveValue(Element *element); + + BooleanEdge getBooleanTrue(); + + BooleanEdge getBooleanFalse(); + /** This function creates a boolean variable. */ - Boolean *getBooleanVar(VarType type); + BooleanEdge getBooleanVar(VarType type); /** This function creates a function operator. */ - Function *createFunctionOperator(ArithOp op, Set **domain, uint numDomain, Set *range, + Function *createFunctionOperator(ArithOp op, Set *range, OverFlowBehavior overflowbehavior); /** This function creates a predicate operator. */ - Predicate *createPredicateOperator(CompOp op, Set **domain, uint numDomain); + Predicate *createPredicateOperator(CompOp op); Predicate *createPredicateTable(Table *table, UndefinedBehavior behavior); /** This function creates an empty instance table.*/ - Table *createTable(Set **domains, uint numDomain, Set *range); + Table *createTable(Set *range); - Table *createTableForPredicate(Set **domains, uint numDomain); + Table *createTableForPredicate(); /** This function adds an input output relation to a table. */ void addTableEntry(Table *table, uint64_t *inputs, uint inputSize, uint64_t result); @@ -67,68 +93,117 @@ public: /** This function applies a function to the Elements in its input. */ - Element *applyFunction(Function *function, Element **array, uint numArrays, Boolean *overflowstatus); + Element *applyFunction(Function *function, Element **array, uint numArrays, BooleanEdge overflowstatus); /** This function applies a predicate to the Elements in its input. */ - Boolean *applyPredicateTable(Predicate *predicate, Element **inputs, uint numInputs, Boolean *undefinedStatus); + BooleanEdge applyPredicateTable(Predicate *predicate, Element **inputs, uint numInputs, BooleanEdge undefinedStatus); - Boolean *applyPredicate(Predicate *predicate, Element **inputs, uint numInputs); + BooleanEdge applyPredicate(Predicate *predicate, Element **inputs, uint numInputs); + /** This exactly one element of array can be true! (i.e. a1 + a2 + a3 + ... + an = 1)*/ + BooleanEdge applyExactlyOneConstraint (BooleanEdge *array, uint asize); + /** This function applies a logical operation to the Booleans in its input. */ + + BooleanEdge applyLogicalOperation(LogicOp op, BooleanEdge *array, uint asize); - Boolean *applyLogicalOperation(LogicOp op, Boolean **array, uint asize); + /** This function applies a logical operation to the Booleans in its input. */ + + BooleanEdge applyLogicalOperation(LogicOp op, BooleanEdge arg1, BooleanEdge arg2); + + /** This function applies a logical operation to the Booleans in its input. */ + + BooleanEdge applyLogicalOperation(LogicOp op, BooleanEdge arg); /** This function adds a boolean constraint to the set of constraints to be satisfied */ - void addConstraint(Boolean *constraint); + void addConstraint(BooleanEdge constraint); /** This function instantiates an order of type type over the set set. */ Order *createOrder(OrderType type, Set *set); /** This function instantiates a boolean on two items in an order. */ - Boolean *orderConstraint(Order *order, uint64_t first, uint64_t second); + BooleanEdge orderConstraint(Order *order, uint64_t first, uint64_t second); /** When everything is done, the client calls this function and then csolver starts to encode*/ - int startEncoding(); - + int solve(); + /** + * Incremental Solving for SATUNE. + * It only supports incremental solving for elements! + * No support for BooleanVar, BooleanOrder or using interpreters + * @return + */ + int solveIncremental(); + /** After getting the solution from the SAT solver, client can get the value of an element via this function*/ uint64_t getElementValue(Element *element); + void freezeElement(Element *e); + + void turnoffOptimizations(){optimizationsOff = true;} + /** After getting the solution from the SAT solver, client can get the value of a boolean via this function*/ - bool getBooleanValue(Boolean *boolean); + bool getBooleanValue(BooleanEdge boolean); - HappenedBefore getOrderConstraintValue(Order *order, uint64_t first, uint64_t second); + bool getOrderConstraintValue(Order *order, uint64_t first, uint64_t second); - void setUnSAT() { unsat = true; } + bool isTrue(BooleanEdge b); + bool isFalse(BooleanEdge b); + void setUnSAT() { model_print("Setting UNSAT %%%%%%\n"); unsat = true; } + void setSatSolverTimeout(long seconds) { satsolverTimeout = seconds;} bool isUnSAT() { return unsat; } + bool isBooleanVarUsed() {return booleanVarUsed;} + void printConstraint(BooleanEdge boolean); + void printConstraints(); Vector *getOrders() { return &allOrders;} + HashsetOrder *getActiveOrders() { return &activeOrders;} Tuner *getTuner() { return tuner; } - HSIteratorBoolean *getConstraints() { return constraints.iterator(); } - + SetIteratorBooleanEdge *getConstraints() { return constraints.iterator(); } + bool isConstraintEncoded(BooleanEdge be) { return encodedConstraints.contains(be);} + void addEncodedConstraint(BooleanEdge be) {encodedConstraints.add(be);} + SATEncoder *getSATEncoder() {return satEncoder;} - void replaceBooleanWithTrue(Boolean *bexpr); - void replaceBooleanWithFalse(Boolean *bexpr); - void replaceBooleanWithBoolean(Boolean *oldb, Boolean *newb); - CSolver * clone(); - - MEMALLOC; + void replaceBooleanWithTrue(BooleanEdge bexpr); + void replaceBooleanWithTrueNoRemove(BooleanEdge bexpr); + void replaceBooleanWithFalseNoRemove(BooleanEdge bexpr); + void replaceBooleanWithFalse(BooleanEdge bexpr); + void replaceBooleanWithBoolean(BooleanEdge oldb, BooleanEdge newb); + CSolver *clone(); + void serialize(); + static CSolver *deserialize(const char *file, InterpreterType itype = SATUNE); + void autoTune(uint budget); + void inferFixedOrders(); + void inferFixedOrder(Order *order); + void setInterpreter(InterpreterType type); + bool useInterpreter() {return interpreter != NULL;} + void setTuner(Tuner *_tuner) { tuner = _tuner; } + long long getElapsedTime() { return elapsedTime; } + long long getEncodeTime(); + long long getSolveTime(); + long getSatSolverTimeout() { return satsolverTimeout;} + bool isIncrementalMode() {return incrementalMode;} + void freezeElementsVariables(); + CMEMALLOC; private: - void handleXORFalse(BooleanLogic *bexpr, Boolean *child); - void handleIMPLIESTrue(BooleanLogic *bexpr, Boolean *child); - void handleIMPLIESFalse(BooleanLogic *bexpr, Boolean *child); - void handleANDTrue(BooleanLogic *bexpr, Boolean *child); - void handleORFalse(BooleanLogic *bexpr, Boolean *child); - + void handleIFFTrue(BooleanLogic *bexpr, BooleanEdge child); + void handleANDTrue(BooleanLogic *bexpr, BooleanEdge child); + void handleFunction(ElementFunction *ef, BooleanEdge child); + + //These two functions are helpers if the client has a pointer to a + //Boolean object that we have since replaced + BooleanEdge rewriteLogicalOperation(LogicOp op, BooleanEdge *array, uint asize); + BooleanEdge doRewrite(BooleanEdge b); /** This is a vector of constraints that must be satisfied. */ - HashSetBoolean constraints; + HashsetBooleanEdge constraints; + HashsetBooleanEdge encodedConstraints; /** This is a vector of all boolean structs that we have allocated. */ Vector allBooleans; @@ -148,11 +223,61 @@ private: /** This is a vector of all order structs that we have allocated. */ Vector allOrders; + HashsetOrder activeOrders; + /** This is a vector of all function structs that we have allocated. */ Vector allFunctions; + BooleanEdge boolTrue; + BooleanEdge boolFalse; + + /** These two tables are used for deduplicating entries. */ + BooleanMatchMap boolMap; + ElementMatchMap elemMap; + SATEncoder *satEncoder; bool unsat; + bool booleanVarUsed; + bool incrementalMode; + bool optimizationsOff; Tuner *tuner; + long long elapsedTime; + long satsolverTimeout; + Interpreter *interpreter; + bool noOptimization; + friend class ElementOpt; + friend class VarOrderingOpt; }; + +inline CompOp flipOp(CompOp op) { + switch (op) { + case SATC_EQUALS: + return SATC_EQUALS; + case SATC_LT: + return SATC_GT; + case SATC_GT: + return SATC_LT; + case SATC_LTE: + return SATC_GTE; + case SATC_GTE: + return SATC_LTE; + } + ASSERT(0); +} + +inline CompOp negateOp(CompOp op) { + switch (op) { + case SATC_EQUALS: + ASSERT(0); + case SATC_LT: + return SATC_GTE; + case SATC_GT: + return SATC_LTE; + case SATC_LTE: + return SATC_GT; + case SATC_GTE: + return SATC_LT; + } + ASSERT(0); +} #endif