9.144 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.218 * * * [progress]: [2/2] Setting up program.
0.223 * [progress]: [Phase 2 of 3] Improving.
0.223 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (atan (/ (sqrt (+ (pow (* (cos a) (cos b)) 2.0) (pow (* (cos a) (sin b)) 2.0))) (sin a)))
0.225 * * [simplify]: iteration  0 :  24  enodes  (cost  13 )
0.226 * * [simplify]: iteration  1 :  32  enodes  (cost  13 )
0.228 * * [simplify]: iteration  2 :  58  enodes  (cost  13 )
0.229 * * [simplify]: iteration  3 :  130  enodes  (cost  13 )
0.232 * * [simplify]: iteration  4 :  409  enodes  (cost  13 )
0.240 * * [simplify]: iteration  5 :  1790  enodes  (cost  13 )
0.274 * * [simplify]: iteration  6 :  5002  enodes  (cost  13 )
0.274 * [simplify]: Simplified to:
   (atan (/ (sqrt (+ (pow (* (cos a) (cos b)) 2.0) (pow (* (cos a) (sin b)) 2.0))) (sin a)))
0.274 * [progress]: [Phase 3 of 3] Extracting.
0.279 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (atan (/ (sqrt (+ (pow (* (cos a) (cos b)) 2.0) (pow (* (cos a) (sin b)) 2.0))) (sin a)))
0.279 * * [simplify]: iteration  0 :  18  enodes  (cost  13 )
0.280 * * [simplify]: iteration  1 :  18  enodes  (cost  13 )
0.280 * [simplify]: Simplified to:
   (atan (/ (sqrt (+ (pow (* (cos a) (cos b)) 2.0) (pow (* (cos a) (sin b)) 2.0))) (sin a)))
7.783 * [regime-testing]: End program error score: 0.13055428960167506