Crash when Solve for Integral with 15C

[klesl]

casio fx-991CE X approx. 23 seconds - 5,963938092×10^91
casio fx-9700GE approx. 23 seconds - 6×10^91
casio fx-cg50 almost immediately (maybe 2 seconds) - 5,963938092×10^91
casio fx-5800P approx. 40 seconds - 5,963938092×10^91
casio fx-3650P II approx. 115 seconds - 5,963938092×10^91
sharp el-9950 almost immediately (maybe 2 seconds) - 5,963938092×10^91
sharp el-w506x approx. 14 seconds - 7,466216848×10^91 (n=100, default value),
144 seconds - 5,964300819×10^91 (n=1000)
sharp el-506x approx. 123 seconds - 5,964300819×10^91 (n=1000)
canon F-792SGA approx. 80 seconds - 5,963938092×10^91
canon X Mark I Pro approx. 79 seconds - 5,963938092×10^91
ti-30x pro approx. 82 seconds - 5,963938091×10^91