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Topi.hpp
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Topi.hpp
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// Copyright(C) 2021-2023 Intel Corporation
// SPDX - License - Identifier: MIT
#pragma once
#include <span>
#include <limits>
#include <bit>
#include <string>
#include <any>
#include <fstream>
#include <queue>
#include <memory>
#include <tuple>
#include "TopiStatistics.hpp"
#include "ToporBitArrayBuffer.hpp"
#include "ToporDynArray.hpp"
#include "ToporBitArray.hpp"
#include "ToporVector.hpp"
#include "TopiParams.hpp"
#include "TopiVarScores.hpp"
#include "ToporWinAverage.hpp"
#include "SetInScope.h"
using namespace std;
namespace Topor
{
// To be used by compressed buffer management
constexpr array<uint32_t, 32> lowestClsSizePerBits = []
{
array<uint32_t, 32> lcspb = {};
lcspb[0] = 3;
for (uint8_t currBits = 1; currBits < 32; ++currBits)
{
// 2^n - n + 3
lcspb[currBits] = ((uint32_t)1 << currBits) - currBits + 3;
}
return lcspb;
}();
template <typename T>
inline std::string HexStr(T val, size_t width = sizeof(T) * 2)
{
stringstream ss;
ss << setfill('0') << setw(width) << hex << (val | 0);
return ss.str();
}
template <typename T>
inline size_t memMb(const vector<T>& v)
{
return v.size() * sizeof(T) / 1000;
}
template <typename TKey, typename TVal>
inline size_t memMb(const unordered_map<TKey, TVal>& m)
{
return m.size() * (sizeof(TKey) + sizeof(TVal)) / 1000;
}
using TCompressedClss = unordered_map<uint16_t, CBitArray>;
inline size_t memMb(const TCompressedClss& bc)
{
auto res = bc.size() * sizeof(uint16_t);
for (auto& i : bc)
{
res += i.second.memMb();
}
return res;
}
// The main solver class
template <typename TLit, typename TUInd, bool Compress>
class CTopi
{
public:
// varNumHint is the expected number of variables -- a non-mandatory hint, which, if provided correctly, helps the solver initialize faster
CTopi(TLit varNumHint = 0);
// DUMPS
void AddUserClause(const span<TLit> c);
// DUMPS
TToporReturnVal Solve(const span<TLit> userAssumps = {}, pair<double, bool> toInSecIsCpuTime = make_pair(numeric_limits<double>::max(), true), uint64_t confThr = numeric_limits<uint64_t>::max());
bool IsAssumptionRequired(size_t assumpInd);
TToporLitVal GetValue(TLit l) const;
TLit GetLitDecLevel(TLit l) const;
uint64_t GetSolveInvs() const;
TLit GetMaxUserVar() const;
TLit GetMaxInternalVar() const;
std::string GetStatStrShort(bool forcePrintingHead = false);
uint64_t GetConflictsNumber() const;
uint64_t GetActiveClss() const;
uint64_t GetActiveLongLearntClss() const;
uint64_t GetBacktracks() const;
uint64_t GetAssumpReuseBacktrackLevelsSaved() const;
uint64_t GetPropagations() const;
std::vector<TToporLitVal> GetModel() const;
TToporStatistics<TLit, TUInd> GetStatistics() const;
string GetParamsDescr() const;
// Set a parameter value; using double for avalue, since it encompasses all the arithmetic types, which can be used for parameters, that is:
// Signed and unsigned integers of at most 32 bits and floating-points of at most the size of a C++ double
// DUMPS
void SetParam(const string& paramName, double newVal);
// Is there an error?
bool IsError() const;
// Get the explanation for the current status (returns the empty string, if there is no error and verbosity is off)
string GetStatusExplanation() const { return IsError() || m_ParamVerbosity > 0 ? m_StatusExplanation : ""; }
// Dump DRAT, if invoked
void DumpDrat(ofstream& openedDratFile, bool isDratBinary, bool dratSortEveryClause) { m_OpenedDratFile = &openedDratFile; m_IsDratBinary = isDratBinary; m_DratSortEveryClause = dratSortEveryClause; }
// Set callback: stop-now
void SetCbStopNow(TCbStopNow CbStopNow) { M_CbStopNow = CbStopNow; }
// Interrupt now
void InterruptNow() { m_InterruptNow = true; }
// Set callback: new-learnt-clause
void SetCbNewLearntCls(TCbNewLearntCls<TLit> CbNewLearntCls) { M_CbNewLearntCls = CbNewLearntCls; }
// Boost the score of the variable v by mult
// DUMPS
void BoostScore(TLit vExternal, double mult = 1.0);
// Fix the polarity of the variable |l| to l
// onlyOnce = false: change until ClearUserPolarityInfo(|l|) is invoked (or, otherwise, forever)
// onlyOnce = true: change only once right now
// DUMPS
void FixPolarity(TLit lExternal, bool onlyOnce = false);
// Create an internal literal for l *now*
// DUMPS
void CreateInternalLit(TLit l);
// Clear any polarity information of the variable v, provided by the user (so, the default solver's heuristic will be used to determine polarity)
// DUMPS
void ClearUserPolarityInfo(TLit vExternal);
// Backtrack to the end of decLevel; the 2nd parameter is required for statistics only
// DUMPS
void Backtrack(TLit decLevel, bool isBCPBacktrack = false, bool isAPICall = false);
// Changing the configuration to # configNum, so that every configNum generates a unique configuration
// This is used for enabling different configs in parallel solving
// DUMPS
string ChangeConfigToGiven(uint16_t configNum);
// Set the relevant data for a higher-level parallel solver
void SetParallelData(unsigned threadId, std::function<void(unsigned threadId, int lit)> ReportUnitClause, std::function<int(unsigned threadId, bool reinit)> GetNextUnitClause);
protected:
/*
* Internal types
*/
static constexpr bool Standard = !Compress;
// The number of literal-entries in an index-entry
static constexpr size_t LitsInInd = sizeof(TUInd) / sizeof(TLit);
// The TLit type, representing the external literals, unsigned
// Will be used for storing internal literals, whose sign is determined by the LSB, rather than the MSB
using TULit = make_unsigned<TLit>::type;
static_assert(numeric_limits<TULit>::digits == numeric_limits<TLit>::digits + 1);
// Bad literal
TULit static constexpr BadULit = 0;
// TUL is used to hold unsigned integers, whose number is not greater than that of the literaks; used only for code clarity
using TUL = TULit;
// TUVar is used to hold variables; used only for code clarity
using TUVar = TULit;
// TUV is used to hold unsigned integers, whose number is not greater than that of the variables; used only for code clarity
using TUV = TUVar;
// Bad variable
TULit static constexpr BadUVar = 0;
// counter type for discovering duplicates, tautologies, contradictions etc., e.g., in incoming clauses and assumptions
// In the context of handling new clauses,
// we did some tests and found that int32_t for the counter works better than int64_t, int16_t (both are 2x slower) and int8_t (significantly slower)
// We also tested options using bit-arrays CBitArray<2> and CBitArrayAligned<2> with memset-0 after each clause,
// but the former is much slower than the current implementation, while the latter is impossibly slow.
typedef int32_t TCounterType;
static_assert(is_signed<TCounterType>::value);
// A span of internal literals (TULit)
using TSpanTULit = span<CTopi<TLit, TUInd, Compress>::TULit>;
/*
* Parameters
*/
// Contains a map from parameter name to parameter description & function to set it for every parameter
// Every parameter adds itself to the list, so we don't have to do it manually in this class
// To add a parameter, it suffices to declare it below, c'est tout!
CTopiParams m_Params;
// The following semantics would have been better,
// but double template parameters are not supported even by gcc 10.2
// CTopiParam template class semantics: <type, initVal, minVal, maxVal>, where:
// type must be an arithmetic type, where a floating-point type must fit into a double, and an integer-type must fit into half-a-double
// minVal <= initVal <= maxVal
// To find the mode values using a regular expression: (, *){(.*),(.*),(.*),(.*),(.*),(.*),(.*),(.*),(.*)}(,| )
// Replace expression, used last time to create a new mode from mode 2 (when there was one less mode): $1{$2,$3,$4,$5,$6,$7,$8,$9,$4}$10
// The special mode meta-parameter; Every parameter can be provided either one single default or a separate default for each mode (in an array)
CTopiParam<TModeType> m_Mode = { m_Params, m_ModeParamName, "The mode (0: Unweighted MaxSAT; 1: FLA; 2: FSN; 3: MF2S; 4: LAR; 5: Weighted MaxSAT; 6: FRU; 7: SN1, 8: EBB)", 0, 0, m_Modes - 1 };
// Parameters: verbosity
CTopiParam<uint8_t> m_ParamVerbosity = { m_Params, "/verbosity/level", "Verbosity level (0: silent; 1: basic statistics; 2: trail&conflict debugging; 3: extensive debugging)", 0, 0, 3};
CTopiParam<uint32_t> m_ParamHeavyVerbosityStartConf = { m_Params, "/verbosity/verbosity_start_conf", "Meaningful only if /verbosity/level>1: print-out at level > 1 starting with the provided conflicts number", 0 };
CTopiParam<uint32_t> m_ParamStatPrintOutConfs = { m_Params, "/verbosity/print_out_confs", "Meaningful only if /verbosity/level>0: the rate of print-outs in #conflicts", 2000, 1 };
CTopiParam<bool> m_ParamPrintMemoryProfiling = { m_Params, "/verbosity/print_mem_prof", "Print-out memory profiling info", false };
// Parameters: timeout
CTopiParam<double> m_ParamOverallTimeout = { m_Params, "/timeout/global", "An overall global timeout for Topor lifespan: Topor will be unusable after reaching this timeout (note that one can also provide a Solve-specific timeout as a parameter to Solve)", numeric_limits<double>::max(), numeric_limits<double>::epsilon() };
CTopiParam<bool> m_ParamOverallTimeoutIsCpu = { m_Params, "/timeout/global_is_cpu", "Is the overall global timeout (if any) for Topor lifespan CPU (or, otherwise, Wall)", false };
// Parameters: decision
CTopiParam<uint8_t> m_ParamInitPolarityStrat = { m_Params, "/decision/polarity/init_strategy", "The initial polarity for a new variable: 0: negative; 1: positive; 2: random", {1, 1, 1, 1, 1, 2, 1, 1, 1}, 0, 2 };
CTopiParam<uint8_t> m_ParamPolarityStrat = { m_Params, "/decision/polarity/strategy", "How to set the polarity for a non-forced variable: 0: phase saving; 1: random", 0, 0, 1 };
CTopiParam<uint32_t> m_ParamPolarityFlipFactor = { m_Params, "/decision/polarity/flip_factor", "If non-0, every N's polarity selection will be flipped", 0};
CTopiParam<double> m_ParamVarActivityInc = { m_Params, "/decision/vsids/var_activity_inc", "Variable activity bumping factor's initial value: m_PosScore[v].m_Score += m_VarActivityInc is carried out for every variable visited during a conflict (hard-coded to 1.0 in Glucose-based solvers)", {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 0.8, 1.0}, 0.0 };
CTopiParam<double> m_ParamVarActivityIncDecay = { m_Params, "/decision/vsids/var_activity_inc_decay", "After each conflict, the variable activity bumping factor is increased by multiplication by 1/m_ParamVarActivityIncDecay (the initial value is provided in the parameter): m_ParamVarActivityInc *= (1 / m_ParamVarActivityIncDecay), where it's 0.8 in Glucose-based solvers and 0.95 in Minisat", {0.95, 0.8, 0.8, 0.8, 0.8, 0.925, 0.8, 0.95, 0.925}, numeric_limits<double>::epsilon(), 1.0 };
CTopiParam<bool> m_ParamVarActivityIncDecayReinitN = { m_Params, "/decision/vsids/var_activity_inc_decay_reinit_n", "Re-initialize /decision/vsids/var_activity_inc_decay before normal incremental Solve?", {true, false, false, false, false, false, false, true, false} };
CTopiParam<bool> m_ParamVarActivityIncDecayReinitS = { m_Params, "/decision/vsids/var_activity_inc_decay_reinit_s", "Re-initialize /decision/vsids/var_activity_inc_decay before short incremental Solve?", {true, false, false, false, false, true, false, false, false} };
CTopiParam<uint32_t> m_ParamVarActivityIncDecayStopReinitSInv = { m_Params, "/decision/vsids/var_activity_inc_decay_stop_reinit_s_inv", "The first short incremental invocation to stop re-initializing /decision/vsids/var_activity_inc_decay before short incremental Solve (0: never stop; relevant only if /decision/vsids/var_activity_inc_decay_reinit_s=1)", 0 };
CTopiParam<uint32_t> m_ParamVarActivityIncDecayStopReinitRestart = { m_Params, "/decision/vsids/var_activity_inc_decay_stop_reinit_restart", "The first restart to stop re-initializing /decision/vsids/var_activity_inc_decay before short incremental Solve (0: never stop; relevant only if /decision/vsids/var_activity_inc_decay_reinit_s=1)", 0 };
CTopiParam<uint32_t> m_ParamVarActivityIncDecayStopReinitConflict = { m_Params, "/decision/vsids/var_activity_inc_decay_stop_reinit_conflict", "The first conflict to stop re-initializing /decision/vsids/var_activity_inc_decay before short incremental Solve (0: never stop; relevant only if /decision/vsids/var_activity_inc_decay_reinit_s=1)", 0 };
CTopiParam<double> m_ParamVarActivityIncDecayStopReinitTime = { m_Params, "/decision/vsids/var_activity_inc_decay_stop_reinit_time", "The time in sec. to stop re-initializing /decision/vsids/var_activity_inc_decay before short incremental Solve (0.0: never stop; relevant only if /decision/vsids/var_activity_inc_decay_reinit_s=1)", 0.0 };
CTopiParam<double> m_ParamVarActivityIncDecayReinitVal = { m_Params, "/decision/vsids/var_activity_inc_decay_reinit_val", "For /decision/vsids/var_activity_inc_decay_reinit_each_solve=1: the value to re-initialize /decision/vsids/var_activity_inc_decay before each Solve", {0.8, 0.8, 0.8, 0.8, 0.8, 0.925, 0.8, 0.8, 0.8}, numeric_limits<double>::epsilon(), 1.0 };
CTopiParam<double> m_ParamVarDecayInc = { m_Params, "/decision/vsids/var_decay_inc", "The increment value for var_activity_inc_decay each var_decay_update_conf_rate conflicts: m_ParamVarDecay += m_ParamVarDecayInc (hard-coded to 0.01 in Glucose-based solvers)", {0.01, 0.01, 0.01, 0.01, 0.01, 0.04, 0.01, 0.01, 0.01}, 0, 1.0 };
CTopiParam<double> m_ParamVarDecayIncAi = { m_Params, "/decision/vsids/var_decay_inc_ai", "After initial: the increment value for var_activity_inc_decay each var_decay_update_conf_rate conflicts: m_ParamVarDecay += m_ParamVarDecayInc (hard-coded to 0.01 in Glucose-based solvers)", 0.01, 0, 1.0 };
CTopiParam<double> m_ParamVarDecayIncS = { m_Params, "/decision/vsids/var_decay_inc_s", "Short incremental: The increment value for var_activity_inc_decay each var_decay_update_conf_rate conflicts: m_ParamVarDecay += m_ParamVarDecayInc (hard-coded to 0.01 in Glucose-based solvers)", {0.01, 0.01, 0.01, 0.01, 0.01, 0.0025, 0.01, 0.01, 0.01}, 0, 1.0 };
CTopiParam<double> m_ParamVarDecayMax = { m_Params, "/decision/vsids/var_decay_max", "The maximal value for var_activity_inc_decay", {0.99, 0.95, 0.9, 0.95, 0.95, 0.98, 0.95, 0.99, 0.9}, numeric_limits<double>::epsilon(), 1.0 };
CTopiParam<double> m_ParamVarDecayMaxAi = { m_Params, "/decision/vsids/var_decay_max_ai", "After initial: The maximal value for var_activity_inc_decay", {0.99, 0.95, 0.9, 0.95, 0.95, 0.99, 0.95, 0.99, 0.94}, numeric_limits<double>::epsilon(), 1.0 };
CTopiParam<double> m_ParamVarDecayMaxS = { m_Params, "/decision/vsids/var_decay_max_s", "Short incremental: The maximal value for var_activity_inc_decay", {0.99, 0.95, 0.9, 0.95, 0.95, 0.98, 0.95, 0.99, 0.94}, numeric_limits<double>::epsilon(), 1.0 };
CTopiParam<uint32_t> m_ParamVarDecayUpdateConfRate = { m_Params, "/decision/vsids/var_decay_update_conf_rate", "The rate in conflicts of var_decay's update (5000 in Glucose-based solvers)", 5000, 1 };
inline bool IsVsidsInitOrderParam(const string& paramName) const { return paramName == "/decision/vsids/init_order"; }
CTopiParam<bool> m_ParamVsidsInitOrder = { m_Params, "/decision/vsids/init_order", "The order of inserting into the VSIDS heap (0: bigger indices first; 1: smaller indices first)", {false, true, false, true, true, false, true, false, false} };
CTopiParam<bool> m_ParamVsidsInitOrderAi = { m_Params, "/decision/vsids/init_order_ai", "After initial call: the order of inserting into the VSIDS heap (0: bigger indices first; 1: smaller indices first)", {false, true, false, true, true, false, true, true, false} };
CTopiParam<bool> m_ParamVarActivityGlueUpdate = { m_Params, "/decision/vsids/var_activity_glue_update", "Do we increase the VSIDS score for every last-level variable, visited during a conflict, whose parent is a learnt clause with LBD score lower than that of the newly learnt clause?", {true, true, true, false, true, true, false, false, true} };
CTopiParam<bool> m_ParamVarActivityUseMapleLevelBreaker = { m_Params, "/decision/vsids/var_activity_use_maple_level_breaker", "Maple (MapleLCMDistChronoBT-f2trc-s) multiplies the variable activity bumping factor by 1.5 for variables, whose dec. level is higher-than-or-equal than 2nd highest-1 and by 0.5 for other variables; use it?", {false, false, false, true, true, false, true, false, false} };
CTopiParam<bool> m_ParamVarActivityUseMapleLevelBreakerAi = { m_Params, "/decision/vsids/var_activity_use_maple_level_breaker_ai", "After initial call: Maple (MapleLCMDistChronoBT-f2trc-s) multiplies the variable activity bumping factor by 1.5 for variables, whose dec. level is higher-than-or-equal than 2nd highest-1 and by 0.5 for other variables; use it?", {false, false, false, true, true, false, false, false, false} };
CTopiParam<uint32_t> m_ParamVarActivityMapleLevelBreakerDecrease = { m_Params, "/decision/vsids/var_activity_maple_level_breaker_decrease", "If var_activity_use_maple_level_breaker is on, this number is the decrease in the 2nd highest level, so that if the variable is higher-than-or-equal, its bump is more significant", {1, 1, 1, 1, 0, 1, 1, 1, 1} };
CTopiParam<uint8_t> m_ParamInitClssBoostScoreStrat = { m_Params, "/decision/init_clss_boost/strat", "Initial query: variable score boost strategy for user clauses -- 0: none; 1: no clause-size, user-order; 2: clause-size-aware, user-order; 3: no clause-size, reverse-user-order; 4: clause-size-aware, reverse-user-order", {2, 0, 0, 0, 0, 0, 4, 2, 0}, 0, 4 };
CTopiParam<uint8_t> m_ParamInitClssBoostScoreStratAfterInit = { m_Params, "/decision/init_clss_boost/strat_after_init", "After initial query: variable score boost strategy for user clauses -- 0: none; 1: no clause-size, user-order; 2: clause-size-aware, user-order; 3: no clause-size, reverse-user-order; 4: clause-size-aware, reverse-user-order", {1, 0, 0, 0, 0, 4, 0, 1, 0}, 0, 4 };
CTopiParam<double> m_ParamInitClssBoostMultHighest = { m_Params, "/decision/init_clss_boost/mult_highest", "Variable score boost for initial clauses: highest mult value", {10., 10., 10., 10., 10., 10., 10., 5., 10.} };
CTopiParam<double> m_ParamInitClssBoostMultLowest = { m_Params, "/decision/init_clss_boost/mult_lowest", "Variable score boost for initial clauses: lowest mult value", 1. };
CTopiParam<double> m_ParamInitClssBoostMultDelta = { m_Params, "/decision/init_clss_boost/mult_delta", "Variable score boost for initial clauses: delta mult value", {0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.01, 0.0001} };
CTopiParam<bool> m_ParamRandomizePolarityAtEachIncrementalCall = { m_Params, "/decision/polarity/randomize_at_incremental_calls", "Randomize the polarities of all the variables once at the beginning of each incremental call", false };
// Parameters: backtracking
CTopiParam<TUV> m_ParamChronoBtIfHigherInit = { m_Params, "/backtracking/chrono_bt_if_higher_init", "Initial query: backtrack chronologically, if the decision level difference is higher than the parameter", {100, numeric_limits<TUV>::max(), 50, 100, 100, 50, 100, 0, 100} };
CTopiParam<TUV> m_ParamChronoBtIfHigherN = { m_Params, "/backtracking/chrono_bt_if_higher_n", "Normal (non-short) incremental query: Backtrack chronologically, if the decision level difference is higher than the parameter", {100, numeric_limits<TUV>::max(), 50, 100, 100, 50, 100, 0, 50} };
CTopiParam<TUV> m_ParamChronoBtIfHigherS = { m_Params, "/backtracking/chrono_bt_if_higher_s", "Short incremental query: Backtrack chronologically, if the decision level difference is higher than the parameter", {100, numeric_limits<TUV>::max(), 50, 100, 100, 50, 100, 100, 50} };
CTopiParam<uint32_t> m_ParamConflictsToPostponeChrono = { m_Params, "/backtracking/conflicts_to_postpone_chrono", "The number of conflicts to postpone considering any backtracking, but NCB", {0, 0, 0, 4000, 8000, 0, 4000, 0, 4000} };
CTopiParam<uint8_t> m_ParamCustomBtStratInit = { m_Params, "/backtracking/custom_bt_strat_init", "Initial query: 0: no custom backtracking; 1, 2: backtrack to the level containing the variable with the best score *instead of any instances of supposed chronological backtracking*, where ties are broken based on the value -- 1: higher levels are preferred; 2: lower levels are preferred ", {2, 0, 0, 0, 1, 0, 0, 0, 0}, 0, 2 };
CTopiParam<uint8_t> m_ParamCustomBtStratN = { m_Params, "/backtracking/custom_bt_strat_n", "Normal (non-short) incremental query: 0: no custom backtracking; 1, 2: backtrack to the level containing the variable with the best score *instead of any instances of supposed chronological backtracking*, where ties are broken based on the value -- 1: higher levels are preferred; 2: lower levels are preferred ", {0, 0, 0, 0, 1, 0, 0, 0, 0}, 0, 2 };
CTopiParam<uint8_t> m_ParamCustomBtStratS = { m_Params, "/backtracking/custom_bt_strat_s", "Short incremental query: 0: no custom backtracking; 1, 2: backtrack to the level containing the variable with the best score *instead of any instances of supposed chronological backtracking*, where ties are broken based on the value -- 1: higher levels are preferred; 2: lower levels are preferred ", {2, 0, 0, 0, 1, 0, 0, 0, 0}, 0, 2 };
// Parameters: BCP
constexpr uint8_t InitEntriesPerWL() { return 4 >= TWatchInfo::BinsInLongBitCeil ? 4 : TWatchInfo::BinsInLongBitCeil; };
CTopiParam<uint8_t> m_ParamInitEntriesPerWL = { m_Params, "/bcp/init_entries_per_wl", "BCP: the number of initial entries in a watch list", InitEntriesPerWL(), TWatchInfo::BinsInLongBitCeil };
CTopiParam<uint8_t> m_ParamBCPWLChoice = { m_Params, "/bcp/wl_choice", "User clause processing: how to choose the watches -- 0: prefer shorter WL; 1: prefer longer WL; 2: disregard WL length", {0, 2, 0, 1, 0, 0, 1, 0, 0}, 0, 2 };
CTopiParam<uint8_t> m_ParamExistingBinWLStrat = { m_Params, "/bcp/existing_bin_wl_start", "BCP: what to do about duplicate binary clauses -- 0: nothing; 1: boost their VSIDS score; 2: add another copy to the watches; 3: inprocessing (if on) to remove duplicates; 4: inprocessing (if on) to boost their VSIDS score", {1, 1, 1, 1, 2, 1, 1, 1, 1}, 0, 4 };
CTopiParam<double> m_ParamBinWLScoreBoostFactor = { m_Params, "/bcp/bin_wl_start_score_boost_factor", "BCP: if /bcp/existing_bin_wl_start=1 or 4, what's the factor for boosting the scores", {1., 1., 1., 1., 1., 1., 1., 0.5, 1.}, numeric_limits<double>::epsilon() };
CTopiParam<uint8_t> m_ParamBestContradictionStrat = { m_Params, "/bcp/best_contradiction_strat", "BCP's best contradiction strategy: 0: size; 1: glue; 2: first; 3: last", {0, 0, 0, 0, 0, 0, 0, 3, 0}, 0, 3 };
// Parameters: Add-user-clause
CTopiParam<uint32_t> m_ParamAddClsRemoveClssGloballySatByLitMinSize = { m_Params, "/add_user_clause/remove_clss_globally_sat_by_literal_larger_size", "Assigned literal strategy: check for literals satisfied at decision level 0 and remove globally satisfied clauses for sizes larger than this parameter", {numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), 2, numeric_limits<uint32_t>::max()} };
CTopiParam<uint32_t> m_ParamAddClsRemoveClssGloballySatByLitMinSizeAi = { m_Params, "/add_user_clause/remove_clss_globally_sat_by_literal_larger_size_ai", "After initial call: assigned literal strategy: check for literals satisfied at decision level 0 and remove globally satisfied clauses for sizes larger than this parameter", {numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), 5, numeric_limits<uint32_t>::max()} };
CTopiParam<bool> m_ParamAddClsAtLevel0 = { m_Params, "/add_user_clause/guarantee_level_0", "Guarantee that adding a user clause always occurs at level 0 (by backtracking to 0 after every solve)", false };
// Parameters: Query type
CTopiParam<uint32_t> m_ParamShortQueryConfThrInv = { m_Params, "/query_type/short_query_conf_thr", "If the conflict threshold is at most this parameter, this invocation is considered to be incremental short", 10000 };
// Parameters: debugging
CTopiParam<uint8_t> m_ParamAssertConsistency = { m_Params, "/debugging/assert_consistency", "Debugging only: assert the consistency (0: none; 1: trail; 2: trail and WL's for assigned; 3: trail and WL's for all -- an extremely heavy operation)", 0, 0, 3 };
CTopiParam<uint32_t> m_ParamAssertConsistencyStartConf = { m_Params, "/debugging/assert_consistency_start_conf", "Debugging only; meaningful only if /debugging/assert_consistency=1: assert the consistency starting with the provided conflicts number", 0 };
CTopiParam<uint32_t> m_ParamPrintDebugModelInvocation = { m_Params, "/debugging/print_debug_model_invocation", "The number of solver invocation to print the model in debug-model format: intended to be used for internal Topor debugging", 0 };
CTopiParam<uint32_t> m_ParamVerifyDebugModelInvocation = { m_Params, "/debugging/verify_debug_model_invocation", "The number of solver invocation, when the debug-model is verified: intended to be used for internal Topor debugging", 0 };
// Parameters: assumptions handling
CTopiParam<bool> m_ParamAssumpsSimpAllowReorder = { m_Params, "/assumptions/allow_reorder", "Assumptions handling: allow reordering assumptions when filtering", true };
CTopiParam<bool> m_ParamAssumpsIgnoreInGlue = { m_Params, "/assumptions/ignore_in_glue", "Assumptions handling: ignore assumptions when calculating the glue score (following the SAT'13 paper \"Improving Glucose for Incremental SAT Solving with Assumptions : Application to MUS Extraction\")", false };
// Parameters: conflict analysis
CTopiParam<bool> m_ParamMinimizeClausesMinisat = { m_Params, "/conflicts/minimize_clauses", "Conflict analysis: apply deep conflict clause minimization", true };
CTopiParam<uint32_t> m_ParamMinimizeClausesBinMaxSize = { m_Params, "/conflicts/bin_res_max_size", "Conflict analysis: maximal size to apply binary minimization (both this condition and maximal LBD must hold; 30 in Glucose, Fiver, Maple)", {30, 30, 30, 30, 50, 30, 30, 30, 30} };
CTopiParam<uint32_t> m_ParamMinimizeClausesBinMaxLbd = { m_Params, "/conflicts/bin_res_max_lbd", "Conflict analysis: maximal LBD to apply binary minimization (both this condition and maximal size must hold; 6 in Glucose, Fiver, Maple)", 6 };
CTopiParam<uint32_t> m_ParamFlippedRecordingMaxLbdToRecord = { m_Params, "/conflicts/flipped_recording_max_lbd", "Conflict analysis: record a flipped clause with LBD smaller than or equal to the value of the parameter", {numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), 0, 40, numeric_limits<uint32_t>::max(), 0, 90, numeric_limits<uint32_t>::max()} };
CTopiParam<bool> m_ParamFlippedRecordDropIfSubsumed = { m_Params, "/conflicts/flipped_drop_if_subsumed", "Conflict analysis: test and drop the flipped clause, if subsumed by the main clause", true };
CTopiParam<uint32_t> m_ParamOnTheFlySubsumptionContradictingMinGlueToDisable = { m_Params, "/conflicts/on_the_fly_subsumption/contradicting_min_glue_to_disable", "Conflict analysis: the minimal glue (LBD) to disable on-the-fly subsumption during conflict analysis over the contradicting clause (1: apply only over initial clauses)", {8, 0, 0, 0, 0, 8, 0, 8, 0} };
CTopiParam<uint32_t> m_ParamOnTheFlySubsumptionParentMinGlueToDisable = { m_Params, "/conflicts/on_the_fly_subsumption/parent_min_glue_to_disable", "Conflict analysis: the minimal glue (LBD) to disable on-the-fly subsumption during conflict analysis over the parents (1: apply only over initial clauses)", {30, 0, 0, 0, 0, 1, 0, 30, 16} };
CTopiParam<uint32_t> m_ParamOnTheFlySubsumptionContradictingFirstRestart = { m_Params, "/conflicts/on_the_fly_subsumption/contradicting_first_restart", "Conflict analysis: the first restart after which on-the-fly subsumption over the contradicting clause is enabled", 1 };
CTopiParam<uint32_t> m_ParamOnTheFlySubsumptionParentFirstRestart = { m_Params, "/conflicts/on_the_fly_subsumption/parent_first_restart", "Conflict analysis: the first restart after which on-the-fly subsumption over the parent clause is enabled", 1 };
CTopiParam<uint8_t> m_ParamAllUipMode = { m_Params, "/conflicts/all_uip/mode", "Conflict analysis: ALL-UIP scheme mode -- 0: disabled; 1: only main clause; 2: only flipped clause; 3: both main and flipped", 0, 0, 3 };
CTopiParam<uint32_t> m_ParamAllUipFirstRestart = { m_Params, "/conflicts/all_uip/first_restart", "Conflict analysis: the first restart after which the ALL-UIP scheme is enabled", 0 };
CTopiParam<uint32_t> m_ParamAllUipLastRestart = { m_Params, "/conflicts/all_uip/last_restart", "Conflict analysis: the last restart after which the ALL-UIP scheme is enabled", numeric_limits<uint32_t>::max() };
CTopiParam<double> m_ParamAllUipFailureThr = { m_Params, "/conflicts/all_uip/success_rate_failure_thr", "Conflict analysis: the threshold on ALL-UIP scheme failure (0.8 in the SAT'20 paper)", 0.8 };
// Parameters: restart strategy
static constexpr uint8_t RESTART_STRAT_NUMERIC = 0;
static constexpr uint8_t RESTART_STRAT_LBD = 1;
static constexpr uint8_t RESTART_STRAT_NONE = 2;
// Restart strategy: initial query
CTopiParam<uint8_t> m_ParamRestartStrategyInit = { m_Params, "/restarts/strategy_init", "Restart strategy for the initial query: 0: numeric (arithmetic, luby or in/out); 1: LBD-average-based", {RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_NUMERIC}, 0, 1 };
// Restart strategy: normal incremental query
CTopiParam<uint8_t> m_ParamRestartStrategyN = { m_Params, "/restarts/strategy_n", "Restart strategy for the normal (non-short) incremental query: 0: arithmetic; 1: LBD-average-based", {RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_NUMERIC}, 0, 1 };
// Restart strategy: short incremental query
CTopiParam<uint8_t> m_ParamRestartStrategyS = { m_Params, "/restarts/strategy_s", "Restart strategy for the short incremental query: 0: arithmetic; 1: LBD-average-based", {RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_LBD, RESTART_STRAT_NUMERIC, RESTART_STRAT_NUMERIC}, 0, 1 };
CTopiParam<bool> m_ParamRestartNumericLocal = { m_Params, "/restarts/numeric/is_local", "Restarts, numeric strategies: use local restarts?", true };
CTopiParam<uint32_t> m_ParamRestartNumericInitConfThr = { m_Params, "/restarts/numeric/conflict_thr", "Restarts, numeric strategy: the initial value for the conflict threshold, which triggers a restart", {1000, 1000, 1000, 1000, 100, 1000, 1000, 1000, 1000}, 1 };
CTopiParam<uint8_t> m_ParamRestartNumericSubStrat = { m_Params, "/restarts/numeric/sub_strat", "Restarts, numeric sub-strategy: 0: arithmetic; 1: luby", 0, 0, 1 };
CTopiParam<uint32_t> m_ParamRestartArithmeticConfIncr = { m_Params, "/restarts/arithmetic/conflict_increment", "Restarts, arithmetic numeric strategy: increment value for conflicts", {0, 50, 50, 50, 100, 0, 50, 1, 50} };
CTopiParam<double> m_ParamRestartLubyConfIncr = { m_Params, "/restarts/luby/conflict_increment", "Restarts, luby numeric strategy: increment value for conflicts", {1.5, 1.5, 1.5, 2, 1.5, 1.5, 2, 1.5, 1.5}, 1 + numeric_limits<double>::epsilon() };
CTopiParam<uint32_t> m_ParamRestartLbdWinSize = { m_Params, "/restarts/lbd/win_size", "Restart, LBD-average-based strategy: window size", {50, 50, 50, 50, 25, 50, 50, 50, 50}, 1 };
CTopiParam<uint32_t> m_ParamRestartLbdThresholdGlueVal = { m_Params, "/restarts/lbd/thr_glue_val", "Restart, LBD-average-based strategy: the maximal value for LBD queue update", {numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max(), 50, 50, numeric_limits<uint32_t>::max(), 50, numeric_limits<uint32_t>::max(), numeric_limits<uint32_t>::max()} };
CTopiParam<double> m_ParamRestartLbdAvrgMult = { m_Params, "/restarts/lbd/average_mult", "Restarts, LBD-average-based strategy: the multiplier in the formula for determining whether it's time to restart: recent-LBD-average * multiplier > global-LBD-average", {0.8, 0.8, 0.8, 0.8, 0.9, 0.8, 0.8, 0.8, 0.8} };
CTopiParam<bool> m_ParamRestartLbdBlockingEnable = { m_Params, "/restarts/lbd/blocking/enable", "Restarts, LBD-average-based blocking enable", {true, true, false, false, true, true, false, true, false} };
CTopiParam<uint32_t> m_ParamRestartLbdBlockingConfsToConsider = { m_Params, "/restarts/lbd/blocking/conflicts_to_consider_blocking", "Restarts, LBD-average-based blocking strategy: the number of conflicts to consider blocking; relevant, if /restarts/lbd/blocking/enable=1", {10000, 10000, 10000, numeric_limits<uint32_t>::max(), 10000, 10000, numeric_limits<uint32_t>::max(), 10000, 10000} };
CTopiParam<double> m_ParamRestartLbdBlockingAvrgMult = { m_Params, "/restarts/lbd/blocking/average_mult", "Restarts, LBD-average-based blocking strategy: the multiplier in the formula for determining whether the restart is blocked: #assignments > multiplier * assignments-average", 1.4 };
CTopiParam<uint32_t> m_ParamRestartLbdBlockingWinSize = { m_Params, "/restarts/lbd/blocking/win_size", "Restarts, LBD-average-based blocking strategy: window size", {5000, 5000, 5000, 5000, 5000, 10000, 5000, 5000, 5000}, 1 };
// Parameters: buffer multipliers
inline bool IsMultiplierParam(const string& paramName) const { return paramName == "/multiplier/clauses" || paramName == "/multiplier/variables" || paramName == "/multiplier/watches_if_separate"; }
CTopiParam<double> m_ParamMultClss = { m_Params, "/multiplier/clauses", "The multiplier for reallocating the clause buffer", CDynArray<TUV>::MultiplierDef, 1. };
CTopiParam<double> m_ParamMultVars = { m_Params, "/multiplier/variables", "The multiplier for reallocating data structures, indexed by variables (and literals)", 1.33, 1. };
CTopiParam<double> m_ParamMultWatches = { m_Params, "/multiplier/watches", "The multiplier for reallocating the watches buffer", 1.33, 1. };
CTopiParam<double> m_ParamMultWasteWatches = { m_Params, "/multiplier/watches_waste", "The multiplier for triggering reallocation of the watches buffer, when there is too much waste", 1.33, 1. };
// Parameters: clause simplification
CTopiParam<bool> m_ParamSimplify = { m_Params, "/deletion/simplify", "Simplify?", true };
CTopiParam<uint8_t> m_ParamSimplifyGlobalLevelScoreStrat = { m_Params, "/deletion/simplify_global_level_strat", "Simplify: how to update the score of the only remaining globally assigned variable (relevant only when /backtracking/custom_bt_strat != 0) -- 0: don't touch; 1: minimal out of all globals; 2: maximal out of all globals", 0, 0, 2 };
// Parameters: data-based compression
CTopiParam<double> m_ParamWastedFractionThrToDelete = { m_Params, "/deletion/wasted_fraction_thr", "If wasted > size * this_parameter, we physically compress the memory (0.2 in Fiver, Maple)", 0.2, numeric_limits<double>::epsilon(), 1. };
CTopiParam<bool> m_ParamCompressAllocatedPerWatch = { m_Params, "/deletion/compress_allocated_per_watch", "Tightly compress the allocated memory per every watch during memory compression (or, otherwise, never compress per watch)", true };
// Parameters: clause deletion
CTopiParam<uint8_t> m_ParamClsDelStrategy = { m_Params, "/deletion/clause/strategy", "Clause deletion strategy (0: no clause deletion; 1: Topor; 2: Fiver)", 1, 0, 2 };
CTopiParam<bool> m_ParamClsDelDeleteOnlyAssumpDecLevel = { m_Params, "/deletion/clause/delete_only_assump_dec_level", "Clause deletion: apply clause deletion only when at assumption decision level", false };
CTopiParam<double> m_ParamClsLowDelActivityDecay = { m_Params, "/deletion/clause/activity_decay", "Clause deletion: activity decay factor", 0.999, numeric_limits<double>::epsilon(), 1. };
CTopiParam<float> m_ParamClsDelLowFracToDelete = { m_Params, "/deletion/clause/frac_to_delete", "Clause deletion: the fraction of clauses to delete", {0.7f, 0.8f, 0.8f, 0.8f, 0.8f, 0.7f, 0.8f, 0.7f, 0.8f}, numeric_limits<float>::epsilon(), (float)1.f };
CTopiParam<uint32_t> m_ParamClsDelLowTriggerInit = { m_Params, "/deletion/clause/trigger_init", "Clause deletion: the initial number of learnts to trigger clause deletion", 6000 };
CTopiParam<uint32_t> m_ParamClsDelLowTriggerInc = { m_Params, "/deletion/clause/trigger_linc", "Clause deletion: the increment in learnts to trigger clause deletion", 75 };
CTopiParam<double> m_ParamClsDelS1LowTriggerMult = { m_Params, "/deletion/clause/s1/trigger_inc_mult", "Clause deletion: the change in increment in learnts to trigger clause deletion (that is, the value by which /deletion/clause/trigger_linc is multiplied)", 1.2, 1. };
CTopiParam<uint32_t> m_ParamClsDelS1LowTriggerMax = { m_Params, "/deletion/clause/s1/trigger_max", "Clause deletion: the maximal number of learnts to activate clause deletion", 60000 };
CTopiParam<uint8_t> m_ParamClsDelS2LowGlue = { m_Params, "/deletion/clause/s2/low_glue", "Clause deletion: the low glue for an additional current-change push", {3, 3, 3, 3, 3, 6, 3, 3, 3} };
CTopiParam<uint8_t> m_ParamClsDelS2MediumGlue = { m_Params, "/deletion/clause/s2/medium_glue", "Clause deletion: the medium glue for an additional current-change push", {5, 5, 5, 5, 5, 8, 5, 5, 5} };
CTopiParam<uint32_t> m_ParamClsDelS2LowMediumIncValue = { m_Params, "/deletion/clause/s2/low_medium_inc", "Clause deletion: the increment for the low&medium push to current-change", 1000 };
CTopiParam<TUV> m_ParamClsDelLowMinGlueFreeze = { m_Params, "/deletion/clause/glue_min_freeze", "Initial query: clause deletion: protect clauses for one round if their glue decreased and is lower than this value", {4, 30, 30, 30, 30, 5, 30, 30, 30}, 0, (TUV)numeric_limits<uint8_t>::max() };
CTopiParam<TUV> m_ParamClsDelLowMinGlueFreezeAi = { m_Params, "/deletion/clause/glue_min_freeze_ai", "Normal incremental query: clause deletion: protect clauses for one round if their glue decreased and is lower than this value", 30, 0, (TUV)numeric_limits<uint8_t>::max() };
CTopiParam<TUV> m_ParamClsDelLowMinGlueFreezeS = { m_Params, "/deletion/clause/glue_min_freeze_s", "Short incremental query: clause deletion: protect clauses for one round if their glue decreased and is lower than this value", {5, 30, 30, 30, 30, 5, 30, 30, 30}, 0, (TUV)numeric_limits<uint8_t>::max() };
CTopiParam<TUV> m_ParamClsDelGlueNeverDelete = { m_Params, "/deletion/clause/glue_never_delete", "Clause deletion: the highest glue value blocking clause deletion", {2, 2, 2, 2, 2, 3, 2, 2, 2}, 0, (TUV)numeric_limits<uint8_t>::max() };
CTopiParam<TUV> m_ParamClsDelGlueClusters = { m_Params, "/deletion/clause/glue_clusters", "Clause deletion: the number of glue clusters", {11, 0, 0, 0, 0, 11, 0, 8, 0}, 0, (TUV)numeric_limits<uint8_t>::max() };
CTopiParam<TUV> m_ParamClsDelGlueMaxCluster = { m_Params, "/deletion/clause/glue_max_lex_cluster", "Clause deletion: the highest glue which makes the clause belong to a glue-cluster", {16, 0, 0, 0, 0, 16, 0, 16, 3}, 0, (TUV)numeric_limits<uint8_t>::max() };
// Parameters: phase saving
CTopiParam<bool> m_ParamPhaseMngForceSolution = { m_Params, "/phase/force_solution", "Phase management: always force (the polarities of) the latest solution?", {false, false, false, false, false, false, true, false, false} };
CTopiParam<uint16_t> m_ParamPhaseMngRestartsBlockSize = { m_Params, "/phase/restarts_block_size", "Phase management: the number of restarts in a block for phase management considerations", 10, 1 };
CTopiParam<double> m_ParamPhaseMngUnforceRestartsFractionInit = { m_Params, "/phase/unforce_restarts_fraction_init", "Phase management for the initial query: don't force the polarities for the provided fraction of restarts", 0.25, 0., 1. };
CTopiParam<double> m_ParamPhaseMngUnforceRestartsFractionN = { m_Params, "/phase/unforce_restarts_fraction_n", "Phase management for the normal (non-short) incremental query: don't force the polarities for the provided fraction of restarts", 0., 0., 1. };
CTopiParam<double> m_ParamPhaseMngUnforceRestartsFractionS = { m_Params, "/phase/unforce_restarts_fraction_s", "Phase management for the short incremental query: don't force the polarities for the provided fraction of restarts", 0., 0., 1. };
CTopiParam<uint8_t> m_ParamPhaseMngStartInvStrat = { m_Params, "/phase/start_inv_strat", "Phase management: startegy to start an invocation with; relevant when 0 < /phase/unforce_restarts_fraction < 1: 0: start with force; 1: start with unforce; 2: start with rand", 0, 0, 2 };
CTopiParam<bool> m_ParamPhaseBoostFlippedForced = { m_Params, "/phase/boost_flipped_forced", "Phase management: boost the scores of forced variables, flipped by BCP?", false };
CTopiParam<uint8_t> m_ParamUpdateParamsWhenVarFixed = { m_Params, "/phase/update_params_when_var_fixed", "Phase management: update the parameters to pre-defined values, when fixed-only-once (1) or fixed-forever (2) or either (3)", {0, 0, 0, 0, 0, 0, 0, 0, 3}, 0, 3 };
// Parameters: inprocessing
CTopiParam<bool> m_ParamInprocessingOn = { m_Params, "/inprocessing/on", "Inprocessing: on or off", false };
CTopiParam<bool> m_ParamIngInvokeEveryQueryAfterInitPostpone = { m_Params, "/inprocessing/invoke_every_query_after_init_postpone", "Inprocessing: invoke right after every query after /inprocessing/postpone_first_inv_conflicts conflicts", true };
CTopiParam<uint32_t> m_ParamIngPostponeFirstInvConflicts = { m_Params, "/inprocessing/postpone_first_inv_conflicts", "Inprocessing: conflicts to postpone the very first inprocessing invocation", 0 };
CTopiParam<uint32_t> m_ParamIngConflictsBeforeNextInvocation = { m_Params, "/inprocessing/conflicts_before_next", "Inprocessing: conflicts before the next invocation", numeric_limits<uint32_t>::max() };
void ReadAnyParamsFromFile();
/*
* INITIALIZATION-RELATED
*/
// The number of initially allocated entries in variable-indexed arrays
const size_t m_InitVarNumAlloc;
// The number of initially allocated entries in literal-indexed arrays
inline size_t GetInitLitNumAlloc() const;
// Handle a potentially new user variable
void HandleIncomingUserVar(TLit v, bool isUndoable = false);
/*
* STATUS
*/
bool m_IsSolveOngoing = false;
TToporStatus m_Status = TToporStatus::STATUS_UNDECIDED;
string m_StatusExplanation;
inline bool IsUnrecoverable() const { return m_Status >= TToporStatus::STATUS_FIRST_UNRECOVERABLE; }
inline bool IsErroneous() const { return m_Status >= TToporStatus::STATUS_FIRST_PERMANENT_ERROR; }
inline void SetStatus(TToporStatus s, string&& expl = "") { m_Status = s; m_StatusExplanation = move(expl); }
inline TToporReturnVal UnrecStatusToRetVal() const;
inline TToporReturnVal StatusToRetVal() const;
inline void SetOverallTimeoutIfAny();
/*
* INITIALIZATION AND EXTERNAL->INTERNAL VARIABLE MAP
*/
// external variable-->internal literal map
CDynArray<TULit> m_E2ILitMap;
CVector<TLit> m_NewExternalVarsAddUserCls;
// internal variable-->external literal map (initialized only, if required, e.g., for callbacks)
CDynArray<TLit> m_I2ELitMap;
inline TLit GetExternalLit(TULit iLit) const { assert(UseI2ELitMap()); return IsNeg(iLit) ? -m_I2ELitMap[GetVar(iLit)] : m_I2ELitMap[GetVar(iLit)]; }
bool UseI2ELitMap() const { return m_ParamVerifyDebugModelInvocation != 0 || IsCbLearntOrDrat() || M_ReportUnitCls != nullptr; }
static constexpr TLit ExternalLit2ExternalVar(TLit l) { return l > 0 ? l : -l; }
inline TULit E2I(TLit l) const
{
const TLit externalV = ExternalLit2ExternalVar(l);
const TULit internalL = m_E2ILitMap[externalV];
return l < 0 ? Negate(internalL) : internalL;
}
// Used to make sure tautologies are discovered and duplicates are removed in new clauses
class CHandleNewCls;
CHandleNewCls m_HandleNewUserCls;
// The last internal variable so-far
TUVar m_LastExistingVar = 0;
inline TUVar GetNextVar() const { return m_LastExistingVar + 1; }
inline TULit GetLastExistingLit() const { return GetLit((TULit)m_LastExistingVar, true); }
inline TULit GetNextLit() const { return GetLastExistingLit() + 1; }
inline TULit GetAssignedLitForVar(TUVar v) const { assert(IsAssignedVar(v)); return GetLit(v, m_AssignmentInfo[v].m_IsNegated); }
/*
* CLAUSE-BUFFER
*/
// BIT-COMPRESSED BUFFERS
// The minimal clause size
static constexpr uint8_t BCMinClsSize = 3;
// The structure of an index into the bit-compressed buffers
// 1 bit: is learnt clause
constexpr static size_t BitsForLearnt = 1;
// 5 bits: bits for [clause size]
// hence, maximal clause size for M=3: N^max = 2^{S+1}+M-2 = 2^{31+1}+3-2 = 4,294,967,297, since S=2^5-1=31 for 5 bits here
constexpr static size_t BitsForClsSize = 5;
// 5 (if literal is 32-bit) bits: bits for each literal
// hence, the maximal literal is 2^(2^5=32) = 4,294,967,296
constexpr static size_t BitsForLit = bit_width((size_t)numeric_limits<TULit>::digits - 1);
static_assert((size_t)numeric_limits<TULit>::digits != 32 || BitsForLit == 5);
// [is-learnt:1][size bits:5][max literal width:5]
constexpr static size_t BitsForHashId = BitsForLearnt + BitsForClsSize + BitsForLit;
// Buffer structure:
// Initial clause layout in the buffer with the widths
// [size: m_BitsForClsSize] [l1: BitsForLit] [l2: BitsForLit] ... [ln: BitsForLit]
// Deleted clause: [size: m_BitsForClsSize] [0: BitsForLit] [optional-binlit1: BitsForLit] [optional-binlit2: BitsForLit] ... [ln: BitsForLit]
// Conflict clause layout in the buffer:
// [size: m_BitsForClsSize] [glue: min(11, m_BitsForClsSize+2)] [stay-for-another-round: 1] [activity: 31] [l1: BitsForLit] [l2: BitsForLit] ... [ln: BitsForLit]
// Deleted clause: [size: m_BitsForClsSize] [glue: min(11, m_BitsForClsSize+2)] [stay-for-another-round: 1] [0: BitsForLit] [optional-binlit1: BitsForLit] [optional-binlit2: BitsForLit] ... [ln: BitsForLit]
// Deleted literal in any buffer: [0: BitsForLit]. Works, since:
// (1) There can be no deleted literals for clauses of size 3, whose number of bits for clause size is 0 (since binary clauses are stored separately)
// (2) the number of bits for a literal is never lower than for the clause size
struct TBCHashId
{
TBCHashId() { assert(IsError()); }
TBCHashId(uint16_t v) : m_Val(v) {}
TBCHashId(bool isLearnt, uint16_t bitsForClsSize, uint16_t bitsForLit) : m_IsLearnt(isLearnt), m_BitsForClsSize(bitsForClsSize), m_BitsForLit(bitsForLit), m_BitsRest(0)
{
assert(m_BitsForClsSize <= m_BitsForLit);
}
union
{
struct
{
uint16_t m_IsLearnt : BitsForLearnt;
uint16_t m_BitsForClsSize : BitsForClsSize;
uint16_t m_BitsForLit : BitsForLit;
uint16_t m_BitsRest : sizeof(uint16_t) * 8 - BitsForLearnt - BitsForClsSize - BitsForLit;
};
uint16_t m_Val = 0;
};
static constexpr uint8_t BCHashIdBits() { return BitsForHashId; }
inline operator uint16_t() const { return m_Val; }
inline bool IsError() const { return m_BitsForLit == 0; }
inline void SetError() { m_BitsForLit = 0; }
inline uint8_t GetBitsGlue() const { return (size_t)m_BitsForClsSize + 2 < BitsForHashId ? (uint8_t)m_BitsForClsSize + 2 : (uint8_t)BitsForHashId; }
inline uint8_t GetFirstLitOffset() const { return m_BitsForClsSize + m_IsLearnt * (GetBitsGlue() + GetBitsActivityAndSkipDel()); }
inline TUV MaxGlue() const { return ((TUV)1 << GetBitsGlue()) - 1; }
constexpr static uint8_t GetBitsSkipDel() { return 1; }
constexpr static uint8_t GetBitsActivity() { return 31; }
constexpr static uint8_t GetBitsActivityAndSkipDel() { return GetBitsActivity() + GetBitsSkipDel(); }
};
static_assert(sizeof(TBCHashId) == sizeof(uint16_t));
// Clause-sizes: bits-for-clause-size
// 3: 0 (special value not needed, since literals are not deleted for clauses of size 3; otherwise, special value 0 means that this is not a clause, but a deleted literal)
// 4: 1 (0 -- special, 1)
// 5-7: 2 (0 -- special, 1-3)
// 8-14: 3 (0 -- special, 1-7)
// 15-29: 4 (0 -- special, 1-15)
// 30-60: 5 (0 -- special, 1-31)
// 61-123: 6 (0 -- special, 1-63)
// 124-250: 7 (0 -- special, 1-127)
// 251-505: 8 (0 -- special, 1-255)
// 506-1016: 9 (0 -- special, 1-511)
// ...
// stored in lowestClsSizePerBits outside of the class, since there was a problem to declare a constexpr array inside of a templated class,
// where the function for low bound is 2^n - n + 3
void LowestClsSizePerBitsStaticAsserts()
{
static_assert(lowestClsSizePerBits[0] == 3);
static_assert(lowestClsSizePerBits[1] == 4);
static_assert(lowestClsSizePerBits[2] == 5);
static_assert(lowestClsSizePerBits[3] == 8);
static_assert(lowestClsSizePerBits[4] == 15);
static_assert(lowestClsSizePerBits[5] == 30);
static_assert(lowestClsSizePerBits[6] == 61);
static_assert(lowestClsSizePerBits[7] == 124);
static_assert(lowestClsSizePerBits[8] == 251);
static_assert(lowestClsSizePerBits[9] == 506);
}
template <class T> static constexpr uint16_t BCClsSize2Bits(T clsSize)
{
assert(clsSize >= BCMinClsSize);
assert((uint64_t)clsSize <= (uint64_t)numeric_limits<uint32_t>::max());
const auto itFirstGreater = upper_bound(lowestClsSizePerBits.begin(), lowestClsSizePerBits.end(), ((uint32_t)clsSize));
return (uint16_t)(itFirstGreater - lowestClsSizePerBits.begin()) - 1;
}
template <class T> static constexpr uint32_t BCClsSize2EncodedClsSize(T clsSize)
{
assert(clsSize >= BCMinClsSize);
assert((uint64_t)clsSize <= (uint64_t)numeric_limits<uint32_t>::max());
return clsSize == BCMinClsSize ? 0 : (uint32_t)clsSize - lowestClsSizePerBits[BCClsSize2Bits(clsSize)] + 1;
}
// Encoded clause size + bits --> clause size
static constexpr uint32_t BCEncodedClsSize2ClsSizeConst(uint32_t encodedClsSize, uint16_t bitsForClsSize)
{
if (bitsForClsSize == 0)
{
return BCMinClsSize;
}
assert(encodedClsSize > 0);
return encodedClsSize + lowestClsSizePerBits[bitsForClsSize] - 1;
}
template <class TGetEncodedClsSize>
static constexpr uint32_t BCEncodedClsSize2ClsSize(TGetEncodedClsSize GetEncodedClsSize, uint16_t bitsForClsSize)
{
if (bitsForClsSize == 0)
{
return BCMinClsSize;
}
const auto encodedClsSize = (uint32_t)GetEncodedClsSize();
assert(encodedClsSize > 0);
return encodedClsSize + lowestClsSizePerBits[bitsForClsSize] - 1;
}
void BCClsSizeStaticAsserts()
{
static_assert(BCClsSize2Bits(3u) == 0);
static_assert(BCClsSize2Bits(4u) == 1);
static_assert(BCClsSize2Bits(5u) == 2);
static_assert(BCClsSize2Bits(6u) == 2);
static_assert(BCClsSize2Bits(7u) == 2);
static_assert(BCClsSize2Bits(8u) == 3);
static_assert(BCClsSize2Bits(9u) == 3);
static_assert(BCClsSize2Bits(14u) == 3);
static_assert(BCClsSize2Bits(15u) == 4);
static_assert(BCClsSize2Bits(16u) == 4);
static_assert(BCClsSize2Bits(29u) == 4);
static_assert(BCClsSize2Bits(30u) == 5);
static_assert(BCClsSize2Bits(31u) == 5);
static_assert(BCClsSize2EncodedClsSize(3u) == 0);
static_assert(BCClsSize2EncodedClsSize(4u) == 1);
static_assert(BCClsSize2EncodedClsSize(5u) == 1);
static_assert(BCClsSize2EncodedClsSize(6u) == 2);
static_assert(BCClsSize2EncodedClsSize(7u) == 3);
static_assert(BCClsSize2EncodedClsSize(8u) == 1);
static_assert(BCClsSize2EncodedClsSize(9u) == 2);
static_assert(BCClsSize2EncodedClsSize(14u) == 7);
static_assert(BCClsSize2EncodedClsSize(15u) == 1);
static_assert(BCEncodedClsSize2ClsSizeConst(0u, 0) == 3);
static_assert(BCEncodedClsSize2ClsSizeConst(1u, 1) == 4);
static_assert(BCEncodedClsSize2ClsSizeConst(1u, 2) == 5);
static_assert(BCEncodedClsSize2ClsSizeConst(2u, 2) == 6);
static_assert(BCEncodedClsSize2ClsSizeConst(3u, 2) == 7);
static_assert(BCEncodedClsSize2ClsSizeConst(1u, 3) == 8);
static_assert(BCEncodedClsSize2ClsSizeConst(2u, 3) == 9);
static_assert(BCEncodedClsSize2ClsSizeConst(7u, 3) == 14);
static_assert(BCEncodedClsSize2ClsSizeConst(1u, 4) == 15);
static_assert(BCEncodedClsSize2ClsSizeConst(2u, 4) == 16);
static_assert(BCEncodedClsSize2ClsSizeConst(15u, 4) == 29);
static_assert(BCEncodedClsSize2ClsSizeConst(1u, 5) == 30);
static_assert(BCEncodedClsSize2ClsSizeConst(2u, 5) == 31);
}
// Bits in the parent, remaining for the index into the clause bit-array, after counting hash-index's BitsForHashId bits
constexpr static size_t BitsForBCParentClsInd = sizeof(TUInd) * 8 - BitsForHashId;
// TUInd for the compressed buffer (used, e.g., for parents). Must have the same size as TUInd.
struct TBCInd
{
TBCInd(TUInd val = BadClsInd) : m_Val(val) {}
TBCInd(const TBCHashId bcHashId, uint64_t bitStart) :
m_IsLearnt(bcHashId.m_BitsForLit == 0 || bitStart > m_MaxBitStart ? false : bcHashId.m_IsLearnt),
m_BitsForClsSize(bcHashId.m_BitsForLit == 0 || bitStart > m_MaxBitStart ? 0 : bcHashId.m_BitsForClsSize),
m_BitsForLit(bcHashId.m_BitsForLit == 0 || bitStart > m_MaxBitStart ? 0 : bcHashId.m_BitsForLit),
m_BitStart(bcHashId.m_BitsForLit == 0 || bitStart > m_MaxBitStart ? 0 : (TUInd)bitStart)
{
assert(m_BitsForClsSize <= m_BitsForLit);
}
inline bool IsError() const { return m_Val == BadClsInd; }
inline operator TUInd() const { return m_Val; }
inline TBCHashId GetHashId() const { return TBCHashId(m_IsLearnt, m_BitsForClsSize, m_BitsForLit); }
inline TUInd BitFirstLit() const { return m_BitStart + TBCHashId(m_IsLearnt, m_BitsForClsSize, m_BitsForLit).GetFirstLitOffset(); }
inline uint8_t GetBitsGlue() const { return TBCHashId(m_IsLearnt, m_BitsForClsSize, m_BitsForLit).GetBitsGlue(); }
union
{
struct
{
TUInd m_IsLearnt : BitsForLearnt;
TUInd m_BitsForClsSize : BitsForClsSize;
TUInd m_BitsForLit : BitsForLit;
TUInd m_BitStart : BitsForBCParentClsInd;
};
TUInd m_Val = BadClsInd;
};
constexpr static uint64_t m_MaxBitStart = ((uint64_t)1 << (uint64_t)BitsForBCParentClsInd) - 1;
};
static_assert(sizeof(TBCInd) == sizeof(TUInd));
// Bit-compressed buffers, indexed by TBCHashId
unordered_map<uint16_t, CBitArray> m_BC;
// This is to used in order not to invalidate iterators in SimplifyIfRequired
unordered_map<uint16_t, CBitArray> m_BCSpare;
size_t BCNextBitSum() const;
size_t BCCapacitySum() const;
void BCRemoveGarbage(function<void(uint64_t oldInd, uint64_t newInd)> NotifyAboutRemainingChunkMove = nullptr)
{
assert(NV(2) || P("BCRemoveGarbage\n"));
TUInd toInd(0);
for (auto bcIt = m_BC.begin(); bcIt != m_BC.end(); toInd == 0 ? bcIt = m_BC.erase(bcIt) : ++bcIt)
{
TBCHashId bcHashInd = bcIt->first;
CBitArray& ba = bcIt->second;
TUInd fromInd(0);
toInd = 0;
while (fromInd < ba.bit_get_next_bit())
{
// Update fromInd to the next remaining clause (or to beyond the buffer capacity)
for (TBCInd bcInd(bcHashInd, fromInd); fromInd < ba.bit_get_next_bit() &&
((bcHashInd.m_BitsForClsSize != 0 && ba.bit_get(fromInd, bcHashInd.m_BitsForClsSize) == 0) ||
ba.bit_get(bcInd.BitFirstLit(), bcHashInd.m_BitsForLit) == 0);
bcInd = TBCInd(bcHashInd, fromInd))
{
fromInd = ClsEnd(bcInd);
}
if (fromInd >= ba.bit_get_next_bit())
{
// Nothing useful to move --> we're done!
break;
}
// Copy the current clause (starting at fromInd)
const TBCInd bcInd(bcHashInd, fromInd);
const auto clsEndInd = ClsEnd(bcInd);
const auto bits2Copy = clsEndInd - fromInd;
if (toInd != fromInd)
{
assert(NV(2) || P("Copying the clause: " + SLits(Cls(bcInd)) + " from " + HexStr((TUInd)bcInd) + "," + HexStr(fromInd) + " to " + HexStr(toInd) + ", where " + to_string(bits2Copy) + " bits are copied\n"));
if (NotifyAboutRemainingChunkMove != nullptr)
{
const TBCInd bcToInd(bcHashInd, toInd);
NotifyAboutRemainingChunkMove(bcInd, bcToInd);
}
ba.copy_block(fromInd, toInd, bits2Copy);
}
toInd += bits2Copy;
fromInd += bits2Copy;
}
ba.bit_resize_and_compress(toInd);
}
}
uint16_t m_LastBCBitArrayInd = 0;
CBitArray* m_LastBCBitArrayPtr = nullptr;
inline CBitArray& BCGetBitArray(uint16_t i)
{
CApplyFuncOnExitFromScope<> onExit([&]()
{
m_LastBCBitArrayInd = i;
m_LastBCBitArrayPtr = &m_BC.at(i);
});
return i == m_LastBCBitArrayInd ? *m_LastBCBitArrayPtr : m_BC.at(i);
}
uint16_t m_LastBCBitArrayConstInd = 0;
CBitArray* m_LastBCBitArrayConstPtr = nullptr;
inline const CBitArray& BCGetBitArrayConst(uint16_t i) const
{
CApplyFuncOnExitFromScope<> onExit([&]()
{
const_cast<uint16_t&>(m_LastBCBitArrayConstInd) = i;
});
return i == m_LastBCBitArrayInd ? *m_LastBCBitArrayPtr : m_BC.at(i);
}
inline uint16_t BCMaxLitWidth(span<TULit> cls) const
{
const auto maxElem = *std::max_element(cls.begin(), cls.end());
// This assertion should hold as long as 5 bits are allocated for m_BitsForLit
// For having literals of up to 2^64, it should be sufficient to allocate 6 bits for m_BitsForLit, in which case the assert below should be removed
assert((uint64_t)maxElem <= (uint64_t)0x100000000);
return bit_width(maxElem);
}
// A compressed clause, which simulates a standard vector with literals, given a bit-array
// The main difference from the user perspective is that a seemingly by-value access to CCompressedCls is in fact always by reference.
// For example, the following code will change c[0] to 1000 (the same code wouldn't modify a standard clause)
// CCompressedCls c
// auto l = c[0]
// l = 1000
// whereas, the following code won't compile
// CCompressedCls c
// auto& l = c[0]
// One implication is that it is impossible to design a range-based by-reference for loop for CCls
// (we're using CCls = conditional_t<Compress, CCompressedCls, CStandardCls>)
// , since CCompressedCls requires auto l : c, whereas CStandardCls requires auto& l : c
// Having said all this, much of std functionality is still supported for CCls transparently for the user, including (by example):
// c[3] = 5
// l = c[3]
// auto it = find(im4.begin(), im4.end(), GetLit(16, false));
// remove_if(cls1.begin(), cls1.end(), IsEq);
// transform(cls1.begin(), cls1.end(), cls1.begin(), [&](TULit l) { return l + 1; });
// for (auto it = cls.begin() + 2; it != cls.end(); ++it)
// swap(c[0], c[1]) : implementation required some extra-code; see below
// Need "public" to be able to compile swap overrides with gcc as VS "friend" work-arounds (commented out in this version) do not work there
public:
class CCompressedCls
{
public:
CCompressedCls(CBitArray& ba, TBCInd bcInd) : m_Ba(&ba), m_BCInd(bcInd),
m_ClsSize(BCEncodedClsSize2ClsSize([&]() { return m_Ba->bit_get(bcInd.m_BitStart, bcInd.m_BitsForClsSize); }, bcInd.m_BitsForClsSize)) {
assert(m_ClsSize > 0);
}
bool Update()
{
m_ClsSize = BCEncodedClsSize2ClsSize([&]() { return m_Ba->bit_get(m_BCInd.m_BitStart, m_BCInd.m_BitsForClsSize); }, m_BCInd.m_BitsForClsSize);
return true;
}
class CIteratorRef
{
public:
CIteratorRef(CBitArray* ba, uint64_t startingBit, uint8_t bits2Read) : m_Ba(ba), m_StartingBit(startingBit), m_BitsForLit(bits2Read) { assert(!IsLocal()); }
CIteratorRef(CIteratorRef&& ccir) : m_Ba(nullptr), m_LocalLit((TULit)ccir), m_BitsForLit(ccir.m_BitsForLit) { assert(IsLocal()); }
operator TULit() const
{
return !IsLocal() ? (TULit)m_Ba->bit_get(m_StartingBit, m_BitsForLit) : m_LocalLit;
}
CIteratorRef& operator=(TULit l)
{
assert(!IsLocal());
m_Ba->bit_set(l, m_BitsForLit, m_StartingBit);
return *this;
}
// Move assignment operator
CIteratorRef& operator =(CIteratorRef&& ccirOther)
{
assert(m_BitsForLit == ccirOther.m_BitsForLit);
*this = (TULit)ccirOther;
return *this;
}
// Needed to remove "protected" to be able to compile swap overrides with gcc as VS "friend" work-arounds (commented out in this version) do not work there
//protected:
CBitArray* m_Ba;
union
{
uint64_t m_StartingBit;
TULit m_LocalLit;
};
uint8_t m_BitsForLit;
inline bool IsLocal() const { return m_Ba == nullptr; }
//friend void swap(CTopi::CCompressedCls::CIteratorRef&& ccir1RValue, CTopi::CCompressedCls::CIteratorRef&& ccir2RValue);
//friend void swap(const CTopi::CCompressedCls::CIteratorRef& ccir1LValue, CTopi::CCompressedCls::CIteratorRef&& ccir2RValue);
//friend void swap(CTopi::CCompressedCls::CIteratorRef&& ccir1RValue, const CTopi::CCompressedCls::CIteratorRef& ccir2LValue);
//friend void swap(const CTopi::CCompressedCls::CIteratorRef& ccir1LValue, const CTopi::CCompressedCls::CIteratorRef& ccir2LValue);
};
class CIteratorRefConst
{
public:
CIteratorRefConst(CBitArray* ba, uint64_t startingBit, uint8_t bits2Read) : m_Ba(ba), m_StartingBit(startingBit), m_BitsForLit(bits2Read) {}
operator TULit() const
{
return (TULit)m_Ba->bit_get(m_StartingBit, m_BitsForLit);
}
protected:
CBitArray* m_Ba;
uint64_t m_StartingBit;
uint8_t m_BitsForLit;
};
class TIteratorConst
{
public:
using iterator_category = random_access_iterator_tag;
using difference_type = uint64_t;
using value_type = TULit;
using reference = CIteratorRefConst;
TIteratorConst(CBitArray* ba, uint64_t firstLitBit, uint8_t bitsForLit) :
m_Ba(ba), m_CurrBit(firstLitBit), m_BitsForLit(bitsForLit) {}
const reference operator*()
{
return CIteratorRefConst(m_Ba, m_CurrBit, m_BitsForLit);
}
TIteratorConst& operator++()
{
m_CurrBit += m_BitsForLit;
return *this;
}
TIteratorConst operator+(size_t i) const
{
return TIteratorConst(m_Ba, m_CurrBit + (uint64_t)i * m_BitsForLit, m_BitsForLit);
}
difference_type operator-(const TIteratorConst& it) { return (m_CurrBit - it.m_CurrBit) / m_BitsForLit; }
friend bool operator== (const TIteratorConst& a, const TIteratorConst& b) { return a.m_Ba->get_const_ptr() == b.m_Ba->get_const_ptr() && a.m_CurrBit == b.m_CurrBit && a.m_BitsForLit == b.m_BitsForLit; };
friend bool operator!= (const TIteratorConst& a, const TIteratorConst& b) { return !(a == b); };
protected:
CBitArray* m_Ba;
uint64_t m_CurrBit;
uint8_t m_BitsForLit;
};
class TIterator
{
public:
using iterator_category = random_access_iterator_tag;
using difference_type = uint64_t;
using value_type = TULit;
using reference = CIteratorRef;
TIterator(CBitArray* ba, uint64_t firstLitBit, uint8_t bitsForLit) :
m_Ba(ba), m_CurrBit(firstLitBit), m_BitsForLit(bitsForLit) {}
reference operator*()
{
return CIteratorRef(m_Ba, m_CurrBit, m_BitsForLit);
}
TIterator& operator++()
{
m_CurrBit += m_BitsForLit;
return *this;
}
TIterator operator+(size_t i) const
{
return TIterator(m_Ba, m_CurrBit + (uint64_t)i * m_BitsForLit, m_BitsForLit);
}
difference_type operator-(const TIterator& it) const { return (m_CurrBit - it.m_CurrBit) / m_BitsForLit; }
friend bool operator== (const TIterator& a, const TIterator& b) { return a.m_Ba->get_const_ptr() == b.m_Ba->get_const_ptr() && a.m_CurrBit == b.m_CurrBit && a.m_BitsForLit == b.m_BitsForLit; };
friend bool operator!= (const TIterator& a, const TIterator& b) { return !(a == b); };
protected:
CBitArray* m_Ba;
uint64_t m_CurrBit;
uint8_t m_BitsForLit;
};
TIterator begin()
{
return TIterator(m_Ba, m_BCInd.BitFirstLit(), m_BCInd.m_BitsForLit);
}
TIterator end()
{
return TIterator(m_Ba, m_BCInd.BitFirstLit() + m_BCInd.m_BitsForLit * m_ClsSize, m_BCInd.m_BitsForLit);
}
TIterator::reference operator[](size_t i)
{
return *TIterator(m_Ba, m_BCInd.BitFirstLit() + m_BCInd.m_BitsForLit * i, m_BCInd.m_BitsForLit);
}
TIterator::reference back()
{
return (*this)[m_ClsSize - 1];
}
TIteratorConst begin() const
{
return TIteratorConst(m_Ba, m_BCInd.BitFirstLit(), m_BCInd.m_BitsForLit);
}
TIteratorConst end() const
{
return TIteratorConst(m_Ba, m_BCInd.BitFirstLit() + m_BCInd.m_BitsForLit * m_ClsSize, m_BCInd.m_BitsForLit);
}
TIteratorConst::reference operator[](size_t i) const
{
return *TIteratorConst(m_Ba, m_BCInd.BitFirstLit() + m_BCInd.m_BitsForLit * i, m_BCInd.m_BitsForLit);
}
TIteratorConst::reference back() const
{
return (*this)[m_ClsSize - 1];
}
inline bool IsLearnt() const { return (bool)m_BCInd.m_IsLearnt; }
inline TUV BufferGetGlue() const
{
assert(IsLearnt());
return (TUV)m_Ba->bit_get(m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize, m_BCInd.GetBitsGlue());
}
inline void BufferSetGlue(TUV glue)
{
assert(IsLearnt());
m_Ba->bit_set(glue, m_BCInd.GetBitsGlue(), m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize);
}
inline bool BufferGetSkipDel() const
{
assert(IsLearnt());
return (bool)m_Ba->bit_get(m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize + m_BCInd.GetBitsGlue(), 1);
}
inline void BufferSetSkipDel(bool skipDel)
{
assert(IsLearnt());
m_Ba->bit_set(skipDel, 1, m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize + m_BCInd.GetBitsGlue());
}
inline float BufferGetActivity() const
{
assert(IsLearnt());
uint32_t tmpUint32 = (uint32_t)m_Ba->bit_get(m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize + m_BCInd.GetBitsGlue() + 1, 31);
return *(float*)&tmpUint32;
}
inline void BufferSetActivity(float activity)
{
assert(IsLearnt());
m_Ba->bit_set(*((uint32_t*)&activity), 31, m_BCInd.m_BitStart + (uint64_t)m_BCInd.m_BitsForClsSize + m_BCInd.GetBitsGlue() + 1);
}
inline size_t size() const { return (size_t)m_ClsSize; }
protected:
CBitArray* m_Ba;
TBCInd m_BCInd;
TBCInd m_ClsSize;