integral += integral_[ind];
XBT_DEBUG("a %f ind %d integral %f ind + 1 %f ind %f time +1 %f time %f", a, ind, integral, integral_[ind + 1],
integral += integral_[ind];
XBT_DEBUG("a %f ind %d integral %f ind + 1 %f ind %f time +1 %f time %f", a, ind, integral, integral_[ind + 1],