15.858 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.274 * * * [progress]: [2/2] Setting up program.
0.278 * [progress]: [Phase 2 of 3] Improving.
0.279 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- (* (* (* (* 4.0 b) b) M) M) (* (+ (* a a) (* b b)) (+ (* b b) (* (- a d) (- a d))))))
0.281 * * [simplify]: iteration  0 :  40  enodes  (cost  15 )
0.282 * * [simplify]: iteration  1 :  123  enodes  (cost  15 )
0.285 * * [simplify]: iteration  2 :  451  enodes  (cost  15 )
0.293 * * [simplify]: iteration  3 :  1619  enodes  (cost  15 )
0.327 * * [simplify]: iteration  4 :  5001  enodes  (cost  15 )
0.328 * [simplify]: Simplified to:
   (sqrt (- (* (* (* (* 4.0 b) b) M) M) (* (+ (* a a) (* b b)) (+ (* b b) (* (- a d) (- a d))))))
0.328 * [progress]: [Phase 3 of 3] Extracting.
0.332 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sqrt (- (* (* (* (* 4.0 b) b) M) M) (* (+ (* a a) (* b b)) (+ (* b b) (* (- a d) (- a d))))))
0.332 * * [simplify]: iteration  0 :  25  enodes  (cost  15 )
0.333 * * [simplify]: iteration  1 :  25  enodes  (cost  15 )
0.333 * [simplify]: Simplified to:
   (sqrt (- (* (* (* (* 4.0 b) b) M) M) (* (+ (* a a) (* b b)) (+ (* b b) (* (- a d) (- a d))))))
7.024 * [regime-testing]: End program error score: 41.13183492568326