/* Test Octagonal_Shape::generalized_affine_preimage().
   Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
   Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)

This file is part of the Parma Polyhedra Library (PPL).

The PPL is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.

The PPL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.

For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */

#include "ppl_test.hh"

namespace {

bool
test01() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);

  oct.generalized_affine_preimage(A, LESS_OR_EQUAL, B + 3*C + 2, 5);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "LESS_OR_EQUAL, B + 3*C + 2, 5) ***");

  return ok;
}

bool
test02() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);
  oct.add_constraint(C >= -12);
  oct.add_constraint(C - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(C >= -12);
  known_result.add_constraint(C <= 14);


  oct.generalized_affine_preimage(A, LESS_OR_EQUAL, B - 3*C + 2, 5);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "LESS_OR_EQUAL, B - 3*C + 2, 5) ***");

  return ok;
}

bool
test03() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(2*C >= -31);
  known_result.add_constraint(2*(B - C) <= 27);
  known_result.add_constraint(2*(B + C) >= -35);

  oct.generalized_affine_preimage(A, LESS_OR_EQUAL, B + 2*C + 5, 2);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "LESS_OR_EQUAL, B + 2*C + 5, 2) ***");

  return ok;
}

bool
test04() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A >= -31);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(2*(B - A) <= 27);
  known_result.add_constraint(2*(B + A) >= -35);


  oct.generalized_affine_preimage(C, LESS_OR_EQUAL, B + 2*A + 5, 2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "LESS_OR_EQUAL, B + 2*A + 5, 2) ***");

  return ok;
}

bool
test05() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(2*C <= 31);
  known_result.add_constraint(2*(C - B) <= 35);
  known_result.add_constraint(2*(B + C) <= 27);

  oct.generalized_affine_preimage(A, LESS_OR_EQUAL, B - 2*C + 5, 2);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "LESS_OR_EQUAL, B - 2*C + 5, 2) ***");

  return ok;
}

bool
test06() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A <= 9);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(2*(A - B) <= 27);
  known_result.add_constraint(2*(B + A) <= 5);

  oct.generalized_affine_preimage(C, LESS_OR_EQUAL, B + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "LESS_OR_EQUAL, B + 2*A + 5, -2) ***");

  return ok;
}

bool
test07() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(B >= -2);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A <= 19);
  known_result.add_constraint(2*(A - B) <= 23);
  known_result.add_constraint(B >= -2);

  oct.generalized_affine_preimage(C, LESS_OR_EQUAL, B + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "LESS_OR_EQUAL, B + 2*A + 5, -2) ***");

  return ok;
}

bool
test08() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(B <= -2);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A >= -23);
  known_result.add_constraint(2*(B - A) <= 19);
  known_result.add_constraint(B <= -2);

  oct.generalized_affine_preimage(C, GREATER_OR_EQUAL, B + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "GREATER_OR_EQUAL, B + 2*A + 5, -2) ***");

  return ok;
}

bool
test09() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(2*C <= 9);
  known_result.add_constraint(2*(C - B) <= 13);
  known_result.add_constraint(2*(B + C) <= 5);

  oct.generalized_affine_preimage(A, GREATER_OR_EQUAL, B + 2*C + 5, 2);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "GREATER_OR_EQUAL, B + 2*C + 5, 2) ***");

  return ok;
}

bool
test10() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A <= 17);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(2*(A - B) <= 21);
  known_result.add_constraint(2*(B + A) <= 45);


  oct.generalized_affine_preimage(C, GREATER_OR_EQUAL, B + 2*A + 5, 2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "GREATER_OR_EQUAL, B + 2*A + 5, 2) ***");

  return ok;
}

bool
test11() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 10);
  oct.add_constraint(A >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(2*C >= -17);
  known_result.add_constraint(2*(B - C) <= 45);
  known_result.add_constraint(2*(B + C) >= -21);

  oct.generalized_affine_preimage(A, GREATER_OR_EQUAL, B - 2*C + 5, 2);
  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A, "
                    "GREATER_OR_EQUAL, B - 2*C + 5, 2) ***");

  return ok;
}

bool
test12() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  TOctagonal_Shape oct(3);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3);
  known_result.add_constraint(2*A >= -39);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);
  known_result.add_constraint(2*(B - A) <= 67);
  known_result.add_constraint(2*(B + A) >= -43);

  oct.generalized_affine_preimage(C, GREATER_OR_EQUAL, B + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "GREATER_OR_EQUAL, B + 2*A + 5, -2) ***");

  return ok;
}

bool
test13() {
  Variable A(0);
  Variable B(1);
  Variable C(2);
  Variable D(3);

  TOctagonal_Shape oct(4);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(4);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);
  oct.generalized_affine_preimage(C, GREATER_OR_EQUAL, D + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "GREATER_OR_EQUAL, D + 2*A + 5, -2) ***");

  return ok;
}

bool
test14() {
  Variable A(0);
  Variable B(1);
  Variable C(2);
  Variable D(3);

  TOctagonal_Shape oct(4);
  oct.add_constraint(C <= 10);
  oct.add_constraint(C >= -11);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - C <= 4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(4);
  known_result.add_constraint(B <= 14);
  known_result.add_constraint(B >= -2);

  oct.generalized_affine_preimage(C, LESS_OR_EQUAL, D + 2*A + 5, -2);

  bool ok = check_result(oct, known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(C, "
                    "LESS_OR_EQUAL, D + 2*A + 5, -2) ***");

  return ok;
}

bool
test15() {
  Variable A(0);
  Variable B(1);
  Variable C(2);

  Linear_Expression e1(A - C + B - 2);
  Linear_Expression e2(A + B + 1);

  TOctagonal_Shape oct(3);
  oct.add_constraint(A <= 1);
  oct.add_constraint(B >= -2);
  oct.add_constraint(B - A <= -4);
  oct.add_constraint(B - C <= -4);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(3, EMPTY);

  oct.generalized_affine_preimage(e1, LESS_OR_EQUAL, e2);

  bool ok = (Octagonal_Shape<mpq_class>(oct) == known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A - C + B - 2, "
                    "LESS_OR_EQUAL, A + B + 1) ***");

  return ok;
}

bool
test16() {
  Variable A(0);
  Variable B(1);

  Linear_Expression e1(-B + 3);
  Linear_Expression e2(2);

  TOctagonal_Shape oct(2);
  oct.add_constraint(B - A >= 2);
  oct.add_constraint(B <= 1);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(2);
  known_result.add_constraint(A <= -1);

  oct.generalized_affine_preimage(e1, GREATER_OR_EQUAL, e2);

  bool ok = (Octagonal_Shape<mpq_class>(oct) == known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(-B + 3, "
                    "GREATER_OR_EQUAL, 2) ***");

  return ok;
}

bool
test17() {
  Variable A(0);
  Variable B(1);
  Variable C(2);
  Variable D(3);

  Linear_Expression e1(A + 2*C - 3*D + 1);
  Linear_Expression e2(B - 2);

  TOctagonal_Shape oct(4);
  oct.add_constraint(B - A >= 2);
  oct.add_constraint(B <= 1);
  oct.add_constraint(B - D >= 2);
  oct.add_constraint(C + A <= 1);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(4);
  known_result.add_constraint(B <= 1);

  oct.generalized_affine_preimage(e1, EQUAL, e2);

  bool ok = (Octagonal_Shape<mpq_class>(oct) == known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A + 2*C - 3*D + 1, "
                    "EQUAL, B - 2) ***");

  return ok;
}

bool
test18() {
  Variable A(0);
  Variable B(1);
  Variable C(2);
  Variable D(3);

  Linear_Expression e1(3*D + 1);
  Linear_Expression e2(B - 2);

  TOctagonal_Shape oct(4);
  oct.add_constraint(B - A >= 2);
  oct.add_constraint(B <= 1);
  oct.add_constraint(B - D >= 2);
  oct.add_constraint(C + A <= 1);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(4);
  known_result.add_constraint(B <= 1);
  known_result.add_constraint(A <= -1);
  known_result.add_constraint(B - A >= 2);
  known_result.add_constraint(C + A <= 1);

  oct.generalized_affine_preimage(e1, EQUAL, e2);

  bool ok = (Octagonal_Shape<mpq_class>(oct) == known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(3*D + 1, "
                    "EQUAL, B - 2) ***");

  return ok;
}

bool
test19() {
  Variable A(0);
  Variable B(1);
  Variable C(2);
  Variable D(3);

  Linear_Expression e1(A + 2*B - 3*D + 1);
  Linear_Expression e2(B - 2);

  TOctagonal_Shape oct(4);
  oct.add_constraint(B - A >= 2);
  oct.add_constraint(B <= 1);
  oct.add_constraint(B - D >= 2);
  oct.add_constraint(C + A <= 1);

  print_constraints(oct, "*** oct ***");

  Octagonal_Shape<mpq_class> known_result(4);

  oct.generalized_affine_preimage(e1, EQUAL, e2);

  bool ok = (Octagonal_Shape<mpq_class>(oct) == known_result);

  print_constraints(oct,
                    "*** oct.generalized_affine_preimage(A + 2*B - 3*D + 1, "
                    "EQUAL, B - 2) ***");

  return ok;
}

} // namespace

BEGIN_MAIN
  DO_TEST(test01);
  DO_TEST(test02);
  DO_TEST(test03);
  DO_TEST(test04);
  DO_TEST(test05);
  DO_TEST(test06);
  DO_TEST(test07);
  DO_TEST(test08);
  DO_TEST(test09);
  DO_TEST(test10);
  DO_TEST(test11);
  DO_TEST(test12);
  DO_TEST(test13);
  DO_TEST(test14);
  DO_TEST(test15);
  DO_TEST(test16);
  DO_TEST(test17);
  DO_TEST(test18);
  DO_TEST(test19);
END_MAIN
