{
 "task": "G1931",
 "mutants": [
  {
   "object": "{{P}}I_RENTAL_FEE",
   "mutant": "line 12: 'H' -> 'Z' (lit)",
   "status": "killed",
   "hidden": "9/11",
   "failed_tests": [
    "SEVEN_DAYS_GROUP_B",
    "SHORT_HIGH_SEASON"
   ]
  },
  {
   "object": "{{P}}I_RENTAL_FEE",
   "mutant": "line 15: 7 -> 8 (const)",
   "status": "killed",
   "hidden": "9/11",
   "failed_tests": [
    "FREE_DAY_AT_SEVEN",
    "SEVEN_DAYS_GROUP_B"
   ]
  },
  {
   "object": "{{P}}I_RENTAL_FEE",
   "mutant": "line 16: + -> - (arith)",
   "status": "killed",
   "hidden": "2/11",
   "failed_tests": [
    "FREE_DAY_AT_SEVEN",
    "FREE_DAY_GROUP_A",
    "LONG_GROUP_C",
    "SEVEN_DAYS_GROUP_B",
    "SHORT_HIGH_SEASON",
    "SHORT_LOW_SEASON",
    "SIX_DAYS_NO_FREE",
    "UNKNOWN_GROUP",
    "UNKNOWN_SEASON"
   ]
  },
  {
   "object": "{{P}}I_RENTAL_FEE",
   "mutant": "line 17: 'C' -> 'Z' (lit)",
   "status": "killed",
   "hidden": "9/11",
   "failed_tests": [
    "FREE_DAY_AT_SEVEN",
    "LONG_GROUP_C"
   ]
  },
  {
   "object": "{{P}}I_RENTAL_FEE",
   "mutant": "line 19: 10 -> 11 (const)",
   "status": "killed",
   "hidden": "7/11",
   "failed_tests": [
    "FREE_DAY_GROUP_A",
    "SHORT_LOW_SEASON",
    "UNKNOWN_GROUP",
    "UNKNOWN_SEASON"
   ]
  }
 ],
 "valid": 5,
 "killed": 5,
 "kill_rate": 1.0,
 "ok": true
}