text: // Copyright (c) 2020, Cyberhaven
  //
  // 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 <s2e/s2e.h>
  #include <stdio.h>
  
  #define DATA_SIZE 0x1000
  
  // This must be aligned on a page boundary in order to avoid extra forks
  // for overlapping accesses.
  char g_data[DATA_SIZE] __attribute__((aligned(DATA_SIZE)));
  
  int main(int argc, char **argv) {
      unsigned offset = 0;
  
      // Test 1: check that 1 byte symbolic access forks
      // the correct number of states.
      s2e_make_symbolic(&offset, sizeof(offset), "offset1");
      for (int i = 0; i < DATA_SIZE; ++i) {
          g_data[i] = (char) i;
      }
  
      if (offset < DATA_SIZE) {
          s2e_print_expression("value1", g_data[offset]);
      }
  
      if (s2e_get_path_id() != 0) {
          s2e_kill_state(0, "Terminated symbaddr1 path");
      }
  }
  