From: Aina Niemetz Date: Thu, 1 Apr 2021 19:30:31 +0000 (-0700) Subject: Delete hashsmt example. (#6263) X-Git-Tag: cvc5-1.0.0~1990 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a5e08f68afc53b181e9558d97495d50c53b11f48;p=cvc5.git Delete hashsmt example. (#6263) This example does not serve the purpose of documenting how to use the new API. It uses Command, which is not available via the API, and it's not worth the effort to migrate it. --- diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt index 4f7f1332f..03cbe1b2c 100644 --- a/examples/CMakeLists.txt +++ b/examples/CMakeLists.txt @@ -75,7 +75,6 @@ cvc4_add_example(simple_vc_quant_cxx "" "") add_subdirectory(api) # TODO(project issue $206): Port example to new API -# add_subdirectory(hashsmt) # add_subdirectory(nra-translate) # add_subdirectory(sets-translate) diff --git a/examples/hashsmt/CMakeLists.txt b/examples/hashsmt/CMakeLists.txt deleted file mode 100644 index c436f5e56..000000000 --- a/examples/hashsmt/CMakeLists.txt +++ /dev/null @@ -1,21 +0,0 @@ -##################### -## CMakeLists.txt -## Top contributors (to current version): -## Mathias Preiner, Aina Niemetz -## This file is part of the CVC4 project. -## Copyright (c) 2009-2021 by the authors listed in the file AUTHORS -## in the top-level source directory and their institutional affiliations. -## All rights reserved. See the file COPYING in the top-level source -## directory for licensing information. -## -if(Boost_FOUND) - cvc4_add_example(sha1_inversion - "sha1_inversion.cpp word.cpp" "hashsmt" - # arguments to binary (for testing) - "a" "sha1_inversion.outfile") -endif() - -cvc4_add_example(sha1_collision - "sha1_collision.cpp word.cpp" "hashsmt" - # arguments to binary (for testing) - "1" "1" "sha1_collision.outfile") diff --git a/examples/hashsmt/sha1.hpp b/examples/hashsmt/sha1.hpp deleted file mode 100644 index 98c33d47e..000000000 --- a/examples/hashsmt/sha1.hpp +++ /dev/null @@ -1,229 +0,0 @@ -/********************* */ -/*! \file sha1.hpp - ** \verbatim - ** Top contributors (to current version): - ** Dejan Jovanovic, Tim King - ** This file is part of the CVC4 project. - ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS - ** in the top-level source directory and their institutional affiliations. - ** All rights reserved. See the file COPYING in the top-level source - ** directory for licensing information.\endverbatim - ** - ** \brief [[ Add one-line brief description here ]] - ** - ** [[ Add lengthier description here ]] - ** \todo document this file - **/ - -// boost/uuid/sha1.hpp header file ----------------------------------------------// - -// Copyright 2007 Andy Tompkins. -// Distributed under the Boost Software License, Version 1.0. (See -// accompanying file LICENSE_1_0.txt or copy at -// http://www.boost.org/LICENSE_1_0.txt) - -// Revision History -// 29 May 2007 - Initial Revision -// 25 Feb 2008 - moved to namespace boost::uuids::detail - -// This is a byte oriented implementation -// Note: this implementation does not handle message longer than -// 2^32 bytes. - -#ifndef __CVC4__EXAMPLES__HASHSMT__SHA1_H -#define __CVC4__EXAMPLES__HASHSMT__SHA1_H - -#include - -#include "word.h" - -#ifdef BOOST_NO_STDC_NAMESPACE -namespace std { - using ::size_t; -} // namespace std -#endif - -namespace hashsmt { - -static_assert(sizeof(unsigned char)*8 == 8, - "Unexpected size for unsigned char"); -static_assert(sizeof(unsigned int)*8 == 32, - "Unexpected size for unsigned int"); - -inline cvc4_uint32 left_rotate(cvc4_uint32 x, std::size_t n) -{ - return (x<> (32-n)); -} - -class sha1 -{ -public: - typedef cvc4_uint32(&digest_type)[5]; -public: - sha1(unsigned rounds = 80); - - void reset(); - - void process_byte(cvc4_uchar8 byte); - void process_block(void const* bytes_begin, void const* bytes_end); - void process_bytes(void const* buffer, std::size_t byte_count); - - void get_digest(digest_type digest); - -private: - void process_block(); - -private: - cvc4_uint32 h_[5]; - - cvc4_uchar8 block_[64]; - - std::size_t block_byte_index_; - std::size_t byte_count_; - - unsigned rounds_; -}; - -inline sha1::sha1(unsigned rounds) -: rounds_(rounds) -{ - reset(); -} - -inline void sha1::reset() -{ - h_[0] = 0x67452301; - h_[1] = 0xEFCDAB89; - h_[2] = 0x98BADCFE; - h_[3] = 0x10325476; - h_[4] = 0xC3D2E1F0; - - block_byte_index_ = 0; - byte_count_ = 0; -} - -inline void sha1::process_byte(cvc4_uchar8 byte) -{ - block_[block_byte_index_++] = byte; - ++byte_count_; - if (block_byte_index_ == 64) { - block_byte_index_ = 0; - process_block(); - } -} - -inline void sha1::process_block(void const* bytes_begin, void const* bytes_end) -{ - cvc4_uchar8 const* begin = static_cast(bytes_begin); - cvc4_uchar8 const* end = static_cast(bytes_end); - for(; begin != end; ++begin) { - process_byte(*begin); - } -} - -inline void sha1::process_bytes(void const* buffer, std::size_t byte_count) -{ - cvc4_uchar8 const* b = static_cast(buffer); - process_block(b, b+byte_count); -} - -inline void sha1::process_block() -{ - cvc4_uint32 w[80]; - for (std::size_t i=0; i<16; ++i) { - w[i] = (block_[i*4 + 0] << 24); - w[i] |= (block_[i*4 + 1] << 16); - w[i] |= (block_[i*4 + 2] << 8); - w[i] |= (block_[i*4 + 3]); - } - for (std::size_t i=16; i<80; ++i) { - w[i] = left_rotate((w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]), 1); - } - - cvc4_uint32 a = h_[0]; - cvc4_uint32 b = h_[1]; - cvc4_uint32 c = h_[2]; - cvc4_uint32 d = h_[3]; - cvc4_uint32 e = h_[4]; - - for (std::size_t i=0; i= 0 - // such that the resulting message length is congruent to 56 (mod 64) - // check if there is enough space for padding and bit_count - if (block_byte_index_ > 56) { - // finish this block - while (block_byte_index_ != 0) { - process_byte(0); - } - - // one more block - while (block_byte_index_ < 56) { - process_byte(0); - } - } else { - while (block_byte_index_ < 56) { - process_byte(0); - } - } - - // append length of message (before pre-processing) - // as a 64-bit big-endian integer - process_byte(0); - process_byte(0); - process_byte(0); - process_byte(0); - process_byte( static_cast((bit_count>>24) & 0xFF)); - process_byte( static_cast((bit_count>>16) & 0xFF)); - process_byte( static_cast((bit_count>>8 ) & 0xFF)); - process_byte( static_cast((bit_count) & 0xFF)); - - // get final digest - digest[0] = h_[0]; - digest[1] = h_[1]; - digest[2] = h_[2]; - digest[3] = h_[3]; - digest[4] = h_[4]; -} - -} // namespace hashsmt - -#endif /* __CVC4__EXAMPLES__HASHSMT__SHA1_H */ diff --git a/examples/hashsmt/sha1_collision.cpp b/examples/hashsmt/sha1_collision.cpp deleted file mode 100644 index 0545ce048..000000000 --- a/examples/hashsmt/sha1_collision.cpp +++ /dev/null @@ -1,109 +0,0 @@ -/********************* */ -/*! \file sha1_collision.cpp - ** \verbatim - ** Top contributors (to current version): - ** Dejan Jovanovic, Aina Niemetz, Tim King - ** This file is part of the CVC4 project. - ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS - ** in the top-level source directory and their institutional affiliations. - ** All rights reserved. See the file COPYING in the top-level source - ** directory for licensing information.\endverbatim - ** - ** \brief [[ Add one-line brief description here ]] - ** - ** [[ Add lengthier description here ]] - ** \todo document this file - **/ - -/* - * sha1smt.cpp - * - * Created on: Jul 13, 2012 - * Author: dejan - */ - -#include -#include -#include -#include - -#include -#include -#include -#include "sha1.hpp" -#include "word.h" - -using namespace std; -using namespace cvc5; - -hashsmt::cvc4_uchar8 *createInput(unsigned size, std::string prefix, std::ostream& output) { - hashsmt::cvc4_uchar8 *input = new hashsmt::cvc4_uchar8[size]; - for(unsigned i = 0; i < size; ++i) { - stringstream ss; - ss << prefix << i; - input[i] = hashsmt::cvc4_uchar8(ss.str()); - output << DeclareFunctionCommand(ss.str(), input[i].getExpr(), input[i].getExpr().getType()) << endl; - } - return input; -} - -int main(int argc, char* argv[]) { - - try { - - // Check the arguments - if (argc != 4) { - cerr << "usage: sha1smt size rounds (1..80) output-file" << std::endl; - return 1; - } - - // Get the input size to encode - unsigned msgSize; - istringstream msgSize_is(argv[1]); - msgSize_is >> msgSize; - - // Get the number of rounds to use - unsigned rounds; - istringstream rounds_is(argv[2]); - rounds_is >> rounds; - - // The output - ofstream output(argv[3]); - output << expr::ExprSetDepth(-1) << language::SetLanguage(language::output::LANG_SMTLIB_V2); - output << SetBenchmarkLogicCommand("QF_BV") << endl; - output << SetBenchmarkStatusCommand(SMT_UNSATISFIABLE) << endl; - - // Make the variables the size of the string - hashsmt::cvc4_uchar8 *cvc4input1 = createInput(msgSize, "x", output); - hashsmt::cvc4_uchar8 *cvc4input2 = createInput(msgSize, "y", output); - - // Do the cvc4 encoding for first message - hashsmt::sha1 cvc4encoder1(rounds); - cvc4encoder1.process_bytes(cvc4input1, msgSize); - hashsmt::cvc4_uint32 cvc4digest1[5]; - cvc4encoder1.get_digest(cvc4digest1); - - // Do the cvc4 encoding for second message - hashsmt::sha1 cvc4encoder2(rounds); - cvc4encoder2.process_bytes(cvc4input2, msgSize); - hashsmt::cvc4_uint32 cvc4digest2[5]; - cvc4encoder2.get_digest(cvc4digest2); - - // Create the assertion - Expr inputEqual = (hashsmt::Word::concat(cvc4input1, msgSize) == hashsmt::Word::concat(cvc4input2, msgSize)); - Expr digestEqual = (hashsmt::Word::concat(cvc4digest1, 5) == hashsmt::Word::concat(cvc4digest2, 5)); - Expr assertion = inputEqual.notExpr().andExpr(digestEqual); - - output << AssertCommand(assertion) << endl; - - // Checksat command - output << CheckSatCommand() << endl; - - delete[] cvc4input1; - delete[] cvc4input2; - } - catch (cvc5::Exception& e) - { - cerr << e << endl; - } -} diff --git a/examples/hashsmt/sha1_inversion.cpp b/examples/hashsmt/sha1_inversion.cpp deleted file mode 100644 index a4acfc3c6..000000000 --- a/examples/hashsmt/sha1_inversion.cpp +++ /dev/null @@ -1,112 +0,0 @@ -/********************* */ -/*! \file sha1_inversion.cpp - ** \verbatim - ** Top contributors (to current version): - ** Dejan Jovanovic, Aina Niemetz, Andres Noetzli - ** This file is part of the CVC4 project. - ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS - ** in the top-level source directory and their institutional affiliations. - ** All rights reserved. See the file COPYING in the top-level source - ** directory for licensing information.\endverbatim - ** - ** \brief [[ Add one-line brief description here ]] - ** - ** [[ Add lengthier description here ]] - ** \todo document this file - **/ - -/* - * sha1smt.cpp - * - * Created on: Jul 13, 2012 - * Author: dejan - */ - -#include -#if BOOST_VERSION > 106700 -#include -#else -#include -#endif - -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "sha1.hpp" -#include "word.h" - -using namespace std; -using namespace cvc5; - -int main(int argc, char* argv[]) { - - try { - - // Check the arguments - if (argc != 3) { - cerr << "usage: sha1smt message output-file" << std::endl; - return 1; - } - - // Get the message to encode and the output file - string msg = argv[1]; - unsigned msgSize = msg.size(); - ofstream output(argv[2]); - output << expr::ExprSetDepth(-1) << language::SetLanguage(language::output::LANG_SMTLIB_V2); - output << SetBenchmarkLogicCommand("QF_BV") << endl; - output << SetBenchmarkStatusCommand(SMT_SATISFIABLE) << endl; - - // Make the variables the size of the string - std::vector cvc4input(msgSize); - for (unsigned i = 0; i < msgSize; ++ i) { - stringstream ss; - ss << "x" << i; - cvc4input[i] = hashsmt::cvc4_uchar8(ss.str()); - output << DeclareFunctionCommand(ss.str(), cvc4input[i].getExpr(), cvc4input[i].getExpr().getType()) << endl; - - // Ouput the solution also - Expr solution = (cvc4input[i] == hashsmt::cvc4_uchar8(msg.c_str()[i])); - output << "; " << AssertCommand(solution) << endl; - } - - // Do the cvc4 encoding - hashsmt::sha1 cvc4encoder; - cvc4encoder.process_bytes(cvc4input.data(), msgSize); - - // Get the digest as bitvectors - hashsmt::cvc4_uint32 cvc4digest[5]; - cvc4encoder.get_digest(cvc4digest); - - // Do the actual sha1 encoding - boost::uuids::detail::sha1 sha1encoder; - sha1encoder.process_bytes(msg.c_str(), msgSize); - unsigned sha1digest[5]; - sha1encoder.get_digest(sha1digest); - - // Create the assertion - Expr assertion; - for (unsigned i = 0; i < 5; ++ i) { - Expr conjunct = (cvc4digest[i] == hashsmt::cvc4_uint32(sha1digest[i])); - if (i > 0) { - assertion = assertion.andExpr(conjunct); - } else { - assertion = conjunct; - } - } - output << AssertCommand(assertion) << endl; - - // Checksat command - output << CheckSatCommand() << endl; - } - catch (cvc5::Exception& e) - { - cerr << e << endl; - } -} diff --git a/examples/hashsmt/word.cpp b/examples/hashsmt/word.cpp deleted file mode 100644 index 79b868d1c..000000000 --- a/examples/hashsmt/word.cpp +++ /dev/null @@ -1,174 +0,0 @@ -/********************* */ -/*! \file word.cpp - ** \verbatim - ** Top contributors (to current version): - ** Dejan Jovanovic, Tim King, Morgan Deters - ** This file is part of the CVC4 project. - ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS - ** in the top-level source directory and their institutional affiliations. - ** All rights reserved. See the file COPYING in the top-level source - ** directory for licensing information.\endverbatim - ** - ** \brief [[ Add one-line brief description here ]] - ** - ** [[ Add lengthier description here ]] - ** \todo document this file - **/ - -/* - * word.cpp - * - * Created on: Jul 13, 2012 - * Author: dejan - */ - -#include "word.h" - -#include - -#include -#include -#include -#include - -using namespace std; -using namespace hashsmt; -using namespace cvc5; -using namespace cvc5::options; - -Expr Word::extendToSize(unsigned newSize) const { - if (newSize <= size()) { - return d_expr; - } else { - // 0-extend to size - Expr extendOp = em()->mkConst(BitVectorZeroExtend(newSize - size())); - return em()->mkExpr(extendOp, d_expr); - } -} - -ExprManager* Word::s_manager = 0; - -ExprManager* Word::em() { - if (s_manager == 0) { - cvc5::Options options; - options.setInputLanguage(language::input::LANG_SMTLIB_V2); - options.setOutputLanguage(language::output::LANG_SMTLIB_V2); - s_manager = new cvc5::ExprManager(options); - } - return s_manager; -} - -Expr Word::operator == (const Word& b) const { - return em()->mkExpr(kind::EQUAL, d_expr, b.getExpr()); -} - -Word Word::concat(const Word words[], unsigned size) { - Expr concat = words[0].d_expr; - for(unsigned i = 1; i < size; ++i) { - concat = em()->mkExpr(kind::BITVECTOR_CONCAT, concat, words[i].d_expr); - } - return Word(concat); -} - -void Word::print(ostream& out) const { - out << cvc5::expr::ExprSetDepth(-1) << d_expr; -} - -Word::Word(unsigned newSize, unsigned value) { - d_expr = em()->mkConst(BitVector(newSize, value)); -}; - -Word::Word(unsigned newSize, string name) { - d_expr = em()->mkVar(name, em()->mkBitVectorType(newSize)); -}; - -Word& Word::operator = (const Word& b) { - d_expr = b.d_expr; - return *this; -} - -Word Word::operator + (const Word& b) const { - unsigned newSize = std::max(size(), b.size()); - Expr lhs = extendToSize(newSize); - Expr rhs = b.extendToSize(newSize); - return em()->mkExpr(kind::BITVECTOR_PLUS, lhs, rhs); -} - -Word& Word::operator += (const Word& b) { - (*this) = (*this) + b; - return (*this); -} - -Word Word::operator ~ () const { - return em()->mkExpr(kind::BITVECTOR_NOT, d_expr); -} - -Word Word::operator & (const Word& b) const { - unsigned newSize = std::max(size(), b.size()); - Expr lhs = extendToSize(newSize); - Expr rhs = b.extendToSize(newSize); - return em()->mkExpr(kind::BITVECTOR_AND, lhs, rhs); -} - -Word Word::operator | (const Word& b) const { - unsigned newSize = std::max(size(), b.size()); - Expr lhs = extendToSize(newSize); - Expr rhs = b.extendToSize(newSize); - return em()->mkExpr(kind::BITVECTOR_OR, lhs, rhs); -} - -Word& Word::operator |= (const Word& b) { - (*this) = (*this) | b; - return (*this); -} - -Word Word::operator ^ (const Word& b) const { - unsigned newSize = std::max(size(), b.size()); - Expr lhs = extendToSize(newSize); - Expr rhs = b.extendToSize(newSize); - return em()->mkExpr(kind::BITVECTOR_XOR, lhs, rhs); -} - -Word Word::operator << (unsigned amount) const { - // Instead of shifting we just add zeroes, to ensure that ((char)x << 24) return 32 bits - Word padding(amount, 0); - return em()->mkExpr(kind::BITVECTOR_CONCAT, d_expr, padding.d_expr); -} - -Word Word::operator >> (unsigned amount) const { - Word shiftAmount(size(), amount); - return em()->mkExpr(kind::BITVECTOR_LSHR, d_expr, shiftAmount.d_expr); -} - -unsigned Word::size() const { - BitVectorType type = d_expr.getType(); - return type.getSize(); -} - -cvc4_uint32::cvc4_uint32(const Word& b) { - if (b.size() > 32) { - // Extract the first 32 bits - Expr extractOp = em()->mkConst(BitVectorExtract(31, 0)); - d_expr = em()->mkExpr(extractOp, b.getExpr()); - } else if (b.size() < 32) { - // 0-extend to 32 bits - Expr extendOp = em()->mkConst(BitVectorZeroExtend(32 - b.size())); - d_expr = em()->mkExpr(extendOp, b.getExpr()); - } else { - d_expr = b.getExpr(); - } -} - -cvc4_uchar8::cvc4_uchar8(const Word& b) { - if (b.size() > 8) { - // Extract the first 8 bits - Expr extractOp = em()->mkConst(BitVectorExtract(7, 0)); - d_expr = em()->mkExpr(extractOp, b.getExpr()); - } else if (b.size() < 8) { - // 0-extend to 8 bits - Expr extendOp = em()->mkConst(BitVectorZeroExtend(8 - b.size())); - d_expr = em()->mkExpr(extendOp, b.getExpr()); - } else { - d_expr = b.getExpr(); - } -} diff --git a/examples/hashsmt/word.h b/examples/hashsmt/word.h deleted file mode 100644 index f5b95ba32..000000000 --- a/examples/hashsmt/word.h +++ /dev/null @@ -1,122 +0,0 @@ -/********************* */ -/*! \file word.h - ** \verbatim - ** Top contributors (to current version): - ** Dejan Jovanovic - ** This file is part of the CVC4 project. - ** Copyright (c) 2009-2021 by the authors listed in the file AUTHORS - ** in the top-level source directory and their institutional affiliations. - ** All rights reserved. See the file COPYING in the top-level source - ** directory for licensing information.\endverbatim - ** - ** \brief [[ Add one-line brief description here ]] - ** - ** [[ Add lengthier description here ]] - ** \todo document this file - **/ - -/* - * word.h - * - * Created on: Jul 13, 2012 - * Author: dejan - */ - -#ifndef WORD_H_ -#define WORD_H_ - -#include -#include - -#include - -namespace hashsmt { - -class Word { - - /** Expression managaer we're using for all word expressions */ - static cvc5::ExprManager* s_manager; - - protected: - - /** The expression of this word */ - cvc5::Expr d_expr; - - /** Get the expression manager words are using */ - static cvc5::ExprManager* em(); - - Word(cvc5::Expr expr = cvc5::Expr()) : d_expr(expr) {} - - /** Extend the representing expression to the given size >= size() */ - cvc5::Expr extendToSize(unsigned size) const; - - public: - - Word(unsigned size, unsigned value = 0); - Word(unsigned size, std::string name); - - Word& operator = (const Word& b); - Word operator + (const Word& b) const; - Word& operator += (const Word& b); - Word operator ~ () const; - Word operator & (const Word& b) const; - Word operator | (const Word& b) const; - Word& operator |= (const Word& b); - Word operator ^ (const Word& b) const; - Word operator << (unsigned amount) const; - Word operator >> (unsigned amount) const; - - unsigned size() const; - - void print(std::ostream& out) const; - - cvc5::Expr getExpr() const { return d_expr; } - - /** Returns the comparison expression */ - cvc5::Expr operator==(const Word& b) const; - - /** Concatenate the given words */ - static Word concat(const Word words[], unsigned size); -}; - -inline std::ostream& operator << (std::ostream& out, const Word& word) { - word.print(out); - return out; -} - -/** Symbolic 32-bit unsigned integer as a CVC4 bitvector expression */ -class cvc4_uint32 : public Word { -public: - - /** Construction from constants of the right size */ - cvc4_uint32(unsigned value = 0) - : Word(32, value) {} - - /** Construction of variables of the right size */ - cvc4_uint32(std::string name) - : Word(32, name) {} - - /** Automatic extend/cut to uint32 */ - cvc4_uint32(const Word& word); -}; - -/** Symbolic 8-bit unsigned char as a CVC4 bitvector expression */ -class cvc4_uchar8 : public Word { -public: - - /** Construction from constants of the right size */ - cvc4_uchar8(unsigned value = 0) - : Word(8, value) {} - - /** Construction of variables of the right size */ - cvc4_uchar8(std::string name) - : Word(8, name) {} - - /** Automatic extend/cut to uchar8 */ - cvc4_uchar8(const Word& word); -}; - - -} - -#endif /* WORD_H_ */