File: test.c

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#include <assert.h>
#include "../cprover-string-hack.h"


int main()
{
  __CPROVER_string s1 = __CPROVER_string_literal("a1");
  __CPROVER_string s2 = __CPROVER_string_literal("2b");
  __CPROVER_string t = __CPROVER_string_concat(s1, s2);

  int i = nondet_int();


  if(i==1)
    assert(!__CPROVER_string_contains(t,__CPROVER_string_literal("3")));
  else if(i==2)
    assert(__CPROVER_string_contains(t,__CPROVER_string_literal("12")));
  else if(i==3)
    assert(!__CPROVER_string_contains(t,__CPROVER_string_literal("b")));

  return 0;
}