2.129 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying:
  (/ a (- (acos a)))
0.024 * * [simplify]: iteration 0: 4 enodes
0.025 * * [simplify]: iteration complete: 4 enodes
0.025 * * [simplify]: Extracting #0: cost 1 inf + 0
0.025 * * [simplify]: Extracting #1: cost 3 inf + 0
0.025 * * [simplify]: Extracting #2: cost 3 inf + 1
0.025 * * [simplify]: Extracting #3: cost 0 inf + 11
0.025 * [simplify]: Simplified to:
  (/ a (- (acos a)))
0.026 * * [progress]: iteration 1 / 4
0.026 * * * [progress]: picking best candidate