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added minisat code base

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Tom
2019-02-08 23:07:45 +01:00
parent 0a0fbcc46d
commit 4f9ae6c67d
31 changed files with 5063 additions and 8 deletions
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4
minisat/utils/Makefile Normal file
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EXEC = system_test
DEPDIR = mtl
include $(MROOT)/mtl/template.mk

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minisat/utils/Options.cc Normal file
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/**************************************************************************************[Options.cc]
Copyright (c) 2008-2010, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/
#include "mtl/Sort.h"
#include "utils/Options.h"
#include "utils/ParseUtils.h"
using namespace Minisat;
void Minisat::parseOptions(int& argc, char** argv, bool strict)
{
int i, j;
for (i = j = 1; i < argc; i++){
const char* str = argv[i];
if (match(str, "--") && match(str, Option::getHelpPrefixString()) && match(str, "help")){
if (*str == '\0')
printUsageAndExit(argc, argv);
else if (match(str, "-verb"))
printUsageAndExit(argc, argv, true);
} else {
bool parsed_ok = false;
for (int k = 0; !parsed_ok && k < Option::getOptionList().size(); k++){
parsed_ok = Option::getOptionList()[k]->parse(argv[i]);
// fprintf(stderr, "checking %d: %s against flag <%s> (%s)\n", i, argv[i], Option::getOptionList()[k]->name, parsed_ok ? "ok" : "skip");
}
if (!parsed_ok)
if (strict && match(argv[i], "-"))
fprintf(stderr, "ERROR! Unknown flag \"%s\". Use '--%shelp' for help.\n", argv[i], Option::getHelpPrefixString()), exit(1);
else
argv[j++] = argv[i];
}
}
argc -= (i - j);
}
void Minisat::setUsageHelp (const char* str){ Option::getUsageString() = str; }
void Minisat::setHelpPrefixStr (const char* str){ Option::getHelpPrefixString() = str; }
void Minisat::printUsageAndExit (int argc, char** argv, bool verbose)
{
const char* usage = Option::getUsageString();
if (usage != NULL)
fprintf(stderr, usage, argv[0]);
sort(Option::getOptionList(), Option::OptionLt());
const char* prev_cat = NULL;
const char* prev_type = NULL;
for (int i = 0; i < Option::getOptionList().size(); i++){
const char* cat = Option::getOptionList()[i]->category;
const char* type = Option::getOptionList()[i]->type_name;
if (cat != prev_cat)
fprintf(stderr, "\n%s OPTIONS:\n\n", cat);
else if (type != prev_type)
fprintf(stderr, "\n");
Option::getOptionList()[i]->help(verbose);
prev_cat = Option::getOptionList()[i]->category;
prev_type = Option::getOptionList()[i]->type_name;
}
fprintf(stderr, "\nHELP OPTIONS:\n\n");
fprintf(stderr, " --%shelp Print help message.\n", Option::getHelpPrefixString());
fprintf(stderr, " --%shelp-verb Print verbose help message.\n", Option::getHelpPrefixString());
fprintf(stderr, "\n");
exit(0);
}

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/***************************************************************************************[Options.h]
Copyright (c) 2008-2010, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/
#ifndef Minisat_Options_h
#define Minisat_Options_h
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include "mtl/IntTypes.h"
#include "mtl/Vec.h"
#include "utils/ParseUtils.h"
namespace Minisat {
//==================================================================================================
// Top-level option parse/help functions:
extern void parseOptions (int& argc, char** argv, bool strict = false);
extern void printUsageAndExit(int argc, char** argv, bool verbose = false);
extern void setUsageHelp (const char* str);
extern void setHelpPrefixStr (const char* str);
//==================================================================================================
// Options is an abstract class that gives the interface for all types options:
class Option
{
protected:
const char* name;
const char* description;
const char* category;
const char* type_name;
static vec<Option*>& getOptionList () { static vec<Option*> options; return options; }
static const char*& getUsageString() { static const char* usage_str; return usage_str; }
static const char*& getHelpPrefixString() { static const char* help_prefix_str = ""; return help_prefix_str; }
struct OptionLt {
bool operator()(const Option* x, const Option* y) {
int test1 = strcmp(x->category, y->category);
return test1 < 0 || test1 == 0 && strcmp(x->type_name, y->type_name) < 0;
}
};
Option(const char* name_,
const char* desc_,
const char* cate_,
const char* type_) :
name (name_)
, description(desc_)
, category (cate_)
, type_name (type_)
{
getOptionList().push(this);
}
public:
virtual ~Option() {}
virtual bool parse (const char* str) = 0;
virtual void help (bool verbose = false) = 0;
friend void parseOptions (int& argc, char** argv, bool strict);
friend void printUsageAndExit (int argc, char** argv, bool verbose);
friend void setUsageHelp (const char* str);
friend void setHelpPrefixStr (const char* str);
};
//==================================================================================================
// Range classes with specialization for floating types:
struct IntRange {
int begin;
int end;
IntRange(int b, int e) : begin(b), end(e) {}
};
struct Int64Range {
int64_t begin;
int64_t end;
Int64Range(int64_t b, int64_t e) : begin(b), end(e) {}
};
struct DoubleRange {
double begin;
double end;
bool begin_inclusive;
bool end_inclusive;
DoubleRange(double b, bool binc, double e, bool einc) : begin(b), end(e), begin_inclusive(binc), end_inclusive(einc) {}
};
//==================================================================================================
// Double options:
class DoubleOption : public Option
{
protected:
DoubleRange range;
double value;
public:
DoubleOption(const char* c, const char* n, const char* d, double def = double(), DoubleRange r = DoubleRange(-HUGE_VAL, false, HUGE_VAL, false))
: Option(n, d, c, "<double>"), range(r), value(def) {
// FIXME: set LC_NUMERIC to "C" to make sure that strtof/strtod parses decimal point correctly.
}
operator double (void) const { return value; }
operator double& (void) { return value; }
DoubleOption& operator=(double x) { value = x; return *this; }
virtual bool parse(const char* str){
const char* span = str;
if (!match(span, "-") || !match(span, name) || !match(span, "="))
return false;
char* end;
double tmp = strtod(span, &end);
if (end == NULL)
return false;
else if (tmp >= range.end && (!range.end_inclusive || tmp != range.end)){
fprintf(stderr, "ERROR! value <%s> is too large for option \"%s\".\n", span, name);
exit(1);
}else if (tmp <= range.begin && (!range.begin_inclusive || tmp != range.begin)){
fprintf(stderr, "ERROR! value <%s> is too small for option \"%s\".\n", span, name);
exit(1); }
value = tmp;
// fprintf(stderr, "READ VALUE: %g\n", value);
return true;
}
virtual void help (bool verbose = false){
fprintf(stderr, " -%-12s = %-8s %c%4.2g .. %4.2g%c (default: %g)\n",
name, type_name,
range.begin_inclusive ? '[' : '(',
range.begin,
range.end,
range.end_inclusive ? ']' : ')',
value);
if (verbose){
fprintf(stderr, "\n %s\n", description);
fprintf(stderr, "\n");
}
}
};
//==================================================================================================
// Int options:
class IntOption : public Option
{
protected:
IntRange range;
int32_t value;
public:
IntOption(const char* c, const char* n, const char* d, int32_t def = int32_t(), IntRange r = IntRange(INT32_MIN, INT32_MAX))
: Option(n, d, c, "<int32>"), range(r), value(def) {}
operator int32_t (void) const { return value; }
operator int32_t& (void) { return value; }
IntOption& operator= (int32_t x) { value = x; return *this; }
virtual bool parse(const char* str){
const char* span = str;
if (!match(span, "-") || !match(span, name) || !match(span, "="))
return false;
char* end;
int32_t tmp = strtol(span, &end, 10);
if (end == NULL)
return false;
else if (tmp > range.end){
fprintf(stderr, "ERROR! value <%s> is too large for option \"%s\".\n", span, name);
exit(1);
}else if (tmp < range.begin){
fprintf(stderr, "ERROR! value <%s> is too small for option \"%s\".\n", span, name);
exit(1); }
value = tmp;
return true;
}
virtual void help (bool verbose = false){
fprintf(stderr, " -%-12s = %-8s [", name, type_name);
if (range.begin == INT32_MIN)
fprintf(stderr, "imin");
else
fprintf(stderr, "%4d", range.begin);
fprintf(stderr, " .. ");
if (range.end == INT32_MAX)
fprintf(stderr, "imax");
else
fprintf(stderr, "%4d", range.end);
fprintf(stderr, "] (default: %d)\n", value);
if (verbose){
fprintf(stderr, "\n %s\n", description);
fprintf(stderr, "\n");
}
}
};
// Leave this out for visual C++ until Microsoft implements C99 and gets support for strtoll.
#ifndef _MSC_VER
class Int64Option : public Option
{
protected:
Int64Range range;
int64_t value;
public:
Int64Option(const char* c, const char* n, const char* d, int64_t def = int64_t(), Int64Range r = Int64Range(INT64_MIN, INT64_MAX))
: Option(n, d, c, "<int64>"), range(r), value(def) {}
operator int64_t (void) const { return value; }
operator int64_t& (void) { return value; }
Int64Option& operator= (int64_t x) { value = x; return *this; }
virtual bool parse(const char* str){
const char* span = str;
if (!match(span, "-") || !match(span, name) || !match(span, "="))
return false;
char* end;
int64_t tmp = strtoll(span, &end, 10);
if (end == NULL)
return false;
else if (tmp > range.end){
fprintf(stderr, "ERROR! value <%s> is too large for option \"%s\".\n", span, name);
exit(1);
}else if (tmp < range.begin){
fprintf(stderr, "ERROR! value <%s> is too small for option \"%s\".\n", span, name);
exit(1); }
value = tmp;
return true;
}
virtual void help (bool verbose = false){
fprintf(stderr, " -%-12s = %-8s [", name, type_name);
if (range.begin == INT64_MIN)
fprintf(stderr, "imin");
else
fprintf(stderr, "%4"PRIi64, range.begin);
fprintf(stderr, " .. ");
if (range.end == INT64_MAX)
fprintf(stderr, "imax");
else
fprintf(stderr, "%4"PRIi64, range.end);
fprintf(stderr, "] (default: %"PRIi64")\n", value);
if (verbose){
fprintf(stderr, "\n %s\n", description);
fprintf(stderr, "\n");
}
}
};
#endif
//==================================================================================================
// String option:
class StringOption : public Option
{
const char* value;
public:
StringOption(const char* c, const char* n, const char* d, const char* def = NULL)
: Option(n, d, c, "<string>"), value(def) {}
operator const char* (void) const { return value; }
operator const char*& (void) { return value; }
StringOption& operator= (const char* x) { value = x; return *this; }
virtual bool parse(const char* str){
const char* span = str;
if (!match(span, "-") || !match(span, name) || !match(span, "="))
return false;
value = span;
return true;
}
virtual void help (bool verbose = false){
fprintf(stderr, " -%-10s = %8s\n", name, type_name);
if (verbose){
fprintf(stderr, "\n %s\n", description);
fprintf(stderr, "\n");
}
}
};
//==================================================================================================
// Bool option:
class BoolOption : public Option
{
bool value;
public:
BoolOption(const char* c, const char* n, const char* d, bool v)
: Option(n, d, c, "<bool>"), value(v) {}
operator bool (void) const { return value; }
operator bool& (void) { return value; }
BoolOption& operator=(bool b) { value = b; return *this; }
virtual bool parse(const char* str){
const char* span = str;
if (match(span, "-")){
bool b = !match(span, "no-");
if (strcmp(span, name) == 0){
value = b;
return true; }
}
return false;
}
virtual void help (bool verbose = false){
fprintf(stderr, " -%s, -no-%s", name, name);
for (uint32_t i = 0; i < 32 - strlen(name)*2; i++)
fprintf(stderr, " ");
fprintf(stderr, " ");
fprintf(stderr, "(default: %s)\n", value ? "on" : "off");
if (verbose){
fprintf(stderr, "\n %s\n", description);
fprintf(stderr, "\n");
}
}
};
//=================================================================================================
}
#endif

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/************************************************************************************[ParseUtils.h]
Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
Copyright (c) 2007-2010, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/
#ifndef Minisat_ParseUtils_h
#define Minisat_ParseUtils_h
#include <stdlib.h>
#include <stdio.h>
#include <zlib.h>
namespace Minisat {
//-------------------------------------------------------------------------------------------------
// A simple buffered character stream class:
static const int buffer_size = 1048576;
class StreamBuffer {
gzFile in;
unsigned char buf[buffer_size];
int pos;
int size;
void assureLookahead() {
if (pos >= size) {
pos = 0;
size = gzread(in, buf, sizeof(buf)); } }
public:
explicit StreamBuffer(gzFile i) : in(i), pos(0), size(0) { assureLookahead(); }
int operator * () const { return (pos >= size) ? EOF : buf[pos]; }
void operator ++ () { pos++; assureLookahead(); }
int position () const { return pos; }
};
//-------------------------------------------------------------------------------------------------
// End-of-file detection functions for StreamBuffer and char*:
static inline bool isEof(StreamBuffer& in) { return *in == EOF; }
static inline bool isEof(const char* in) { return *in == '\0'; }
//-------------------------------------------------------------------------------------------------
// Generic parse functions parametrized over the input-stream type.
template<class B>
static void skipWhitespace(B& in) {
while ((*in >= 9 && *in <= 13) || *in == 32)
++in; }
template<class B>
static void skipLine(B& in) {
for (;;){
if (isEof(in)) return;
if (*in == '\n') { ++in; return; }
++in; } }
template<class B>
static int parseInt(B& in) {
int val = 0;
bool neg = false;
skipWhitespace(in);
if (*in == '-') neg = true, ++in;
else if (*in == '+') ++in;
if (*in < '0' || *in > '9') fprintf(stderr, "PARSE ERROR! Unexpected char: %c\n", *in), exit(3);
while (*in >= '0' && *in <= '9')
val = val*10 + (*in - '0'),
++in;
return neg ? -val : val; }
// String matching: in case of a match the input iterator will be advanced the corresponding
// number of characters.
template<class B>
static bool match(B& in, const char* str) {
int i;
for (i = 0; str[i] != '\0'; i++)
if (in[i] != str[i])
return false;
in += i;
return true;
}
// String matching: consumes characters eagerly, but does not require random access iterator.
template<class B>
static bool eagerMatch(B& in, const char* str) {
for (; *str != '\0'; ++str, ++in)
if (*str != *in)
return false;
return true; }
//=================================================================================================
}
#endif

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/***************************************************************************************[System.cc]
Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
Copyright (c) 2007-2010, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/
#include "utils/System.h"
#if defined(__linux__)
#include <stdio.h>
#include <stdlib.h>
using namespace Minisat;
// TODO: split the memory reading functions into two: one for reading high-watermark of RSS, and
// one for reading the current virtual memory size.
static inline int memReadStat(int field)
{
char name[256];
pid_t pid = getpid();
int value;
sprintf(name, "/proc/%d/statm", pid);
FILE* in = fopen(name, "rb");
if (in == NULL) return 0;
for (; field >= 0; field--)
if (fscanf(in, "%d", &value) != 1)
printf("ERROR! Failed to parse memory statistics from \"/proc\".\n"), exit(1);
fclose(in);
return value;
}
static inline int memReadPeak(void)
{
char name[256];
pid_t pid = getpid();
sprintf(name, "/proc/%d/status", pid);
FILE* in = fopen(name, "rb");
if (in == NULL) return 0;
// Find the correct line, beginning with "VmPeak:":
int peak_kb = 0;
while (!feof(in) && fscanf(in, "VmPeak: %d kB", &peak_kb) != 1)
while (!feof(in) && fgetc(in) != '\n')
;
fclose(in);
return peak_kb;
}
double Minisat::memUsed() { return (double)memReadStat(0) * (double)getpagesize() / (1024*1024); }
double Minisat::memUsedPeak() {
double peak = memReadPeak() / 1024;
return peak == 0 ? memUsed() : peak; }
#elif defined(__FreeBSD__)
double Minisat::memUsed(void) {
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
return (double)ru.ru_maxrss / 1024; }
double MiniSat::memUsedPeak(void) { return memUsed(); }
#elif defined(__APPLE__)
#include <malloc/malloc.h>
double Minisat::memUsed(void) {
malloc_statistics_t t;
malloc_zone_statistics(NULL, &t);
return (double)t.max_size_in_use / (1024*1024); }
#else
double Minisat::memUsed() {
return 0; }
#endif

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/****************************************************************************************[System.h]
Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
Copyright (c) 2007-2010, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/
#ifndef Minisat_System_h
#define Minisat_System_h
#if defined(__linux__)
#include <fpu_control.h>
#endif
#include "mtl/IntTypes.h"
//-------------------------------------------------------------------------------------------------
namespace Minisat {
static inline double cpuTime(void); // CPU-time in seconds.
extern double memUsed(); // Memory in mega bytes (returns 0 for unsupported architectures).
extern double memUsedPeak(); // Peak-memory in mega bytes (returns 0 for unsupported architectures).
}
//-------------------------------------------------------------------------------------------------
// Implementation of inline functions:
#if defined(_MSC_VER) || defined(__MINGW32__)
#include <time.h>
static inline double Minisat::cpuTime(void) { return (double)clock() / CLOCKS_PER_SEC; }
#else
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
static inline double Minisat::cpuTime(void) {
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
return (double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec / 1000000; }
#endif
#endif