This was incorrectly instrumented:
This line: fptr[idx_dst] = (*fine_volumes)(SAMRAI::pdat::CellIndex(*bi));
Became: fptr[idx_dst] = _FPC_CHECK_((*fine_volumes)(SAMRAI::pdat::CellIndex(* bi), ), 125, “..ineOperator.cxx”);
Here a function pointer is assigned to an array element.