False
     161,110,224 bytes allocated in the heap
      91,802,520 bytes copied during GC
      13,759,312 bytes maximum residency (5 sample(s))
         150,704 bytes maximum slop
              13 MB total memory in use (0 MB lost due to fragmentation)

                                     Tot time (elapsed)  Avg pause  Max pause
  Gen  0       148 colls,     0 par    0.077s   0.083s     0.0006s    0.0046s
  Gen  1         5 colls,     0 par    0.029s   0.041s     0.0081s    0.0120s

  TASKS: 4 (1 bound, 3 peak workers (3 total), using -N1)

  SPARKS: 250000 (0 converted, 0 overflowed, 0 dud, 238694 GC'd, 11306 fizzled)

  INIT    time    0.001s  (  0.012s elapsed)
  MUT     time   86.772s  ( 88.010s elapsed)
  GC      time    0.106s  (  0.124s elapsed)
  EXIT    time    0.001s  (  0.002s elapsed)
  Total   time   86.880s  ( 88.148s elapsed)

  Alloc rate    1,856,708 bytes per MUT second

  Productivity  99.9% of total user, 99.8% of total elapsed

word-search-exe inputs/large_input_500.txt 500 500 "gingera" +RTS -N1 -s -ls  86.89s user 0.28s system 98% cpu 1:28.17 total
