Profiling results
-----------------
  Total cpu time observed: 792ms (out of 948ms)
  Number of samples taken: 4 (once every 198ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 792(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 792(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] 792(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] 792(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] 792(100.0%)   0(0.0%)  run-improve47 ...rebuilding/src/mainloop.rkt:346:0
                              prepare-points-intervals [6]  100.0%
------------------------------------------------------------------
                              run-improve47 [5]             100.0%
 [6] 792(100.0%)   0(0.0%)  prepare-points-intervals ...g/src/points.rkt:120:0
                              loop [7]                      100.0%
------------------------------------------------------------------
                              prepare-points-intervals [6]  100.0%
 [7] 792(100.0%)   0(0.0%)  loop ...fy-regraph-rebuilding/src/points.rkt:132:4
                              loop [8]                      100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 792(100.0%)   0(0.0%)  loop ...ify-regraph-rebuilding/src/points.rkt:79:2
                              ??? [9]                        75.3%
                              ??? [10]                       24.7%
------------------------------------------------------------------
                              loop [8]                      100.0%
 [9] 596(75.3%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:379:33
                              ival-sqrt [11]                 33.6%
                              ival-pi [12]                   33.6%
                              ival-div [14]                  32.9%
------------------------------------------------------------------
                              loop [8]                      100.0%
[10] 196(24.7%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:375:33
                              ival-mult [13]                100.0%
------------------------------------------------------------------
                              ??? [9]                       100.0%
[11] 200(25.3%)  200(25.3%) ival-sqrt ...-rebuilding/src/biginterval.rkt:212:0
------------------------------------------------------------------
                              ??? [9]                       100.0%
[12] 200(25.3%)    0(0.0%)  ival-pi ...aph-rebuilding/src/biginterval.rkt:83:0
                              pi.bf [15]                    100.0%
------------------------------------------------------------------
                              ??? [10]                      100.0%
[13] 196(24.7%)  196(24.7%) ival-mult ...-rebuilding/src/biginterval.rkt:120:0
------------------------------------------------------------------
                              ??? [9]                       100.0%
[14] 196(24.7%)    0(0.0%)  ival-div ...h-rebuilding/src/biginterval.rkt:156:0
                              bfdiv [16]                    100.0%
------------------------------------------------------------------
                              ival-pi [12]                  100.0%
[15] 200(25.3%)  200(25.3%) pi.bf ...lib/math/private/bigfloat/mpfr.rkt:1012:4
------------------------------------------------------------------
                              ival-div [14]                 100.0%
[16] 196(24.7%)    0(0.0%)  bfdiv ...-lib/math/private/bigfloat/mpfr.rkt:835:4
                              ??? [17]                      100.0%
------------------------------------------------------------------
                              bfdiv [16]                    100.0%
[17] 196(24.7%)  196(24.7%) ??? /opt/racket-7.5/collects/ffi/unsafe.rkt:938:4
------------------------------------------------------------------