dim = isl_space_from_domain(isl_space_copy(node->dim));
dim = isl_space_add_dims(dim, isl_dim_out, nrow);
bmap = isl_basic_map_universe(isl_space_copy(dim));
dim = isl_space_from_domain(isl_space_copy(node->dim));
dim = isl_space_add_dims(dim, isl_dim_out, nrow);
bmap = isl_basic_map_universe(isl_space_copy(dim));
isl_constraint_set_coefficient_si(c, isl_dim_out, i, -1);
isl_mat_get_element(node->sched, i, 0, &v);
isl_constraint_set_constant(c, v);
isl_constraint_set_coefficient_si(c, isl_dim_out, i, -1);
isl_mat_get_element(node->sched, i, 0, &v);
isl_constraint_set_constant(c, v);