Profiling results
-----------------
  Total cpu time observed: 798ms (out of 1004ms)
  Number of samples taken: 4 (once every 200ms)

==================================================================
                              Caller
 Idx  Total       Self      Name+src                        Local%
      ms(pct)     ms(pct)     Callee
==================================================================
 [1] 798(100.0%)   0(0.0%)  ??? ...lects/racket/private/more-scheme.rkt:261:28
                              profile-thunk16 [2]           100.0%
------------------------------------------------------------------
                              ??? [1]                       100.0%
 [2] 798(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] 798(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] 798(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] 798(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] 798(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] 798(100.0%)   0(0.0%)  loop ...fy-regraph-rebuilding/src/points.rkt:132:4
                              loop [8]                      100.0%
------------------------------------------------------------------
                              loop [7]                      100.0%
 [8] 798(100.0%)   0(0.0%)  loop ...ify-regraph-rebuilding/src/points.rkt:79:2
                              ??? [9]                        50.1%
                              ??? [10]                       49.9%
------------------------------------------------------------------
                              loop [8]                      100.0%
 [9] 400(50.1%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:379:33
                              ival-div [11]                 100.0%
------------------------------------------------------------------
                              loop [8]                      100.0%
[10] 398(49.9%)    0(0.0%)  ??? ...tract/private/arrow-higher-order.rkt:375:33
                              ival-mult [12]                100.0%
------------------------------------------------------------------
                              ??? [9]                       100.0%
[11] 400(50.1%)  200(25.1%) ival-div ...h-rebuilding/src/biginterval.rkt:156:0
                              bfmul [13]                     50.0%
------------------------------------------------------------------
                              ??? [10]                      100.0%
[12] 398(49.9%)    0(0.0%)  ival-mult ...-rebuilding/src/biginterval.rkt:120:0
                              bfmul [13]                    100.0%
------------------------------------------------------------------
                              ival-div [11]                  33.4%
                              ival-mult [12]                 66.6%
[13] 598(74.9%)    0(0.0%)  bfmul ...-lib/math/private/bigfloat/mpfr.rkt:835:4
                              new-mpfr [14]                  67.2%
                              ??? [15]                       32.8%
------------------------------------------------------------------
                              bfmul [13]                    100.0%
[14] 402(50.4%)  402(50.4%) new-mpfr ...b/math/private/bigfloat/mpfr.rkt:348:0
------------------------------------------------------------------
                              bfmul [13]                    100.0%
[15] 196(24.6%)  196(24.6%) ??? /opt/racket-7.5/collects/ffi/unsafe.rkt:938:4
------------------------------------------------------------------