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       1                 :            : /******************************************************************************
       2                 :            :  * This file is part of the cvc5 project.
       3                 :            :  *
       4                 :            :  * Copyright (c) 2009-2026 by the authors listed in the file AUTHORS
       5                 :            :  * in the top-level source directory and their institutional affiliations.
       6                 :            :  * All rights reserved.  See the file COPYING in the top-level source
       7                 :            :  * directory for licensing information.
       8                 :            :  * ****************************************************************************
       9                 :            :  *
      10                 :            :  * Test for project issue #652
      11                 :            :  *
      12                 :            :  */
      13                 :            : #include <cvc5/cvc5.h>
      14                 :            : 
      15                 :            : using namespace cvc5;
      16                 :          1 : int main(void)
      17                 :            : {
      18                 :          1 :   TermManager tm;
      19                 :          1 :   Solver solver(tm);
      20                 :          1 :   solver.setOption("incremental", "false");
      21                 :          1 :   solver.setOption("sep-pre-skolem-emp", "true");
      22                 :          1 :   Sort s0 = tm.getIntegerSort();
      23                 :          1 :   Term t1 = tm.mkConst(s0, "_x1");
      24                 :          1 :   Term t2 = tm.mkConst(s0, "_x8");
      25                 :          1 :   Term t3 = tm.mkConst(s0, "_x10");
      26                 :          3 :   Term t4 = tm.mkTerm(Kind::SEQ_UNIT, {t1});
      27                 :          1 :   Sort s5 = t4.getSort();
      28                 :          1 :   Term t6 = tm.mkVar(s5, "_f13_0");
      29                 :          5 :   Term t7 = tm.mkTerm(Kind::SEQ_REPLACE_ALL, {t4, t4, t6});
      30                 :          4 :   Term t8 = tm.mkTerm(Kind::SEQ_AT, {t4, t1});
      31                 :          5 :   Term t9 = tm.mkTerm(Kind::SEQ_UPDATE, {t8, t1, t8});
      32                 :          5 :   Term t10 = tm.mkTerm(Kind::SEQ_EXTRACT, {t4, t1, t2});
      33                 :          5 :   Term t11 = tm.mkTerm(Kind::SEQ_REPLACE, {t10, t9, t7});
      34                 :          3 :   Sort s12 = tm.mkFunctionSort({s5}, s5);
      35                 :          3 :   Term t13 = solver.defineFun("_f13", {t6}, s5, t11, true);
      36                 :          1 :   Op o14 = tm.mkOp(Kind::APPLY_UF);
      37                 :          4 :   Term t15 = tm.mkTerm(o14, {t13, t4});
      38                 :          4 :   Term t16 = tm.mkTerm(Kind::APPLY_UF, {t13, t15});
      39                 :          1 :   Op o17 = tm.mkOp(Kind::SEQ_EXTRACT);
      40                 :          5 :   Term t18 = tm.mkTerm(o17, {t16, t3, t1});
      41                 :          1 :   Op o19 = tm.mkOp(Kind::SEQ_PREFIX);
      42                 :          4 :   Term t20 = tm.mkTerm(o19, {t18, t4});
      43                 :          1 :   Sort s21 = t20.getSort();
      44                 :          1 :   Term t22 = t20.impTerm(t20);
      45                 :          1 :   solver.assertFormula(t22);
      46                 :          1 :   solver.checkSat();
      47                 :            : 
      48                 :          1 :   return 0;
      49                 :          1 : }