data/grid_refinement.csv

n_cells,a_inf,lower,upper,excursion,inside
501,0.29999995251986433,0.2999992689689245,0.3000003132990323,0.0,True
1001,0.2999999525198087,0.29999913763065894,0.30000036958686044,0.0,True
2001,0.2999999525198102,0.29999906365851087,0.30000040128920963,0.0,True
4001,0.29999995251981015,0.29999902434515885,0.30000041813778905,0.0,True
8001,0.2999999525198095,0.29999902586464966,0.3000004174865787,0.0,True