Profiling results
-----------------
  Total cpu time observed: 666ms (out of 768ms)
  Number of samples taken: 3 (once every 222ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 666(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 666(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] 666(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] 666(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] 666(100.0%)   0(0.0%)  run-improve47 ...l-pow-test/src/mainloop.rkt:346:0
                              prepare-points-intervals [6]  100.0%
------------------------------------------------------------------
                              run-improve47 [5]             100.0%
 [6] 666(100.0%)   0(0.0%)  prepare-points-intervals ...t/src/points.rkt:120:0
                              loop [7]                      100.0%
------------------------------------------------------------------
                              prepare-points-intervals [6]  100.0%
 [7] 666(100.0%)   0(0.0%)  loop .../herbie/ival-pow-test/src/points.rkt:132:4
                              loop [8]                      100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 666(100.0%) 240(36.0%) loop ...s/herbie/ival-pow-test/src/points.rkt:79:2
                              ??? [9]                        33.3%
                              ??? [10]                       30.6%
------------------------------------------------------------------
                              loop [8]                      100.0%
 [9] 222(33.3%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:375:33
                              ival-pow [11]                 100.0%
------------------------------------------------------------------
                              loop [8]                      100.0%
[10] 204(30.6%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:379:33
                              ival-fabs [12]                100.0%
------------------------------------------------------------------
                              ??? [9]                       100.0%
[11] 222(33.3%)  222(33.3%) ival-pow ...val-pow-test/src/biginterval.rkt:230:0
------------------------------------------------------------------
                              ??? [10]                      100.0%
[12] 204(30.6%)  204(30.6%) ival-fabs ...al-pow-test/src/biginterval.rkt:368:0
------------------------------------------------------------------