Profiling results
-----------------
  Total cpu time observed: 654ms (out of 860ms)
  Number of samples taken: 3 (once every 218ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 654(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 654(100.0%)   0(0.0%)  profile-thunk16 ...e/pkgs/profile-lib/main.rkt:9:0
                              run [3]                       100.0%
------------------------------------------------------------------
                              profile-thunk16 [2]           100.0%
 [3] 654(100.0%)   0(0.0%)  run ...et-7.5/share/pkgs/profile-lib/main.rkt:39:2
                              .../more-scheme.rkt:261:28 [4]100.0%
------------------------------------------------------------------
                              run [3]                       100.0%
 [4] 654(100.0%)   0(0.0%)  .../more-scheme.rkt:261:28 (unknown source)
                              run-improve47 [5]             100.0%
------------------------------------------------------------------
                              .../more-scheme.rkt:261:28 [4]100.0%
 [5] 654(100.0%)   0(0.0%)  run-improve47 ...-both-ends/src/mainloop.rkt:365:0
                              prepare-points-intervals [6]  100.0%
------------------------------------------------------------------
                              run-improve47 [5]             100.0%
 [6] 654(100.0%)   0(0.0%)  prepare-points-intervals ...s/src/points.rkt:128:0
                              loop [7]                      100.0%
------------------------------------------------------------------
                              prepare-points-intervals [6]  100.0%
 [7] 654(100.0%)   0(0.0%)  loop ...w-detection-both-ends/src/points.rkt:140:4
                              loop [8]                      100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 654(100.0%)   0(0.0%)  loop ...ow-detection-both-ends/src/points.rkt:81:2
                              ??? [9]                       100.0%
------------------------------------------------------------------
                              loop [8]                      100.0%
 [9] 654(100.0%)   0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:375:33
                              ival-pow-pos [10]              66.7%
                              ??? [11]                       33.3%
------------------------------------------------------------------
                              ??? [9]                       100.0%
[10] 436(66.7%)  436(66.7%) ival-pow-pos ...oth-ends/src/biginterval.rkt:353:0
------------------------------------------------------------------
                              ??? [9]                       100.0%
[11] 218(33.3%)    0(0.0%)  ??? ...tection-both-ends/src/biginterval.rkt:275:0
                              epfn [12]                     100.0%
------------------------------------------------------------------
                              ??? [11]                      100.0%
[12] 218(33.3%)  218(33.3%) epfn ...ection-both-ends/src/biginterval.rkt:151:0
------------------------------------------------------------------