Remove test "write_btor_no_driver"; Fix test "write_btor_init_assert"

backends/Makefile

@@ -44,7 +44,7 @@ $(eval $(call template,write_btor_pmux,write_btor_pmux))
 $(eval $(call template,write_btor_and_or,write_btor_and_or))
 $(eval $(call template,write_btor_shiftx,write_btor write_btor_v write_btor_s))
 $(eval $(call template,write_btor_init_assert,write_btor write_btor_v write_btor_s))
-$(eval $(call template,write_btor_error, write_btor_no_top_module write_btor_unsupported_cell_type write_btor_no_driver))
+$(eval $(call template,write_btor_error, write_btor_no_top_module write_btor_unsupported_cell_type))
 
 #write_edif
 $(eval $(call template,write_edif,write_edif write_edif_top write_edif_nogndvcc write_edif_pvector_par write_edif_pvector_bra write_edif_pvector_ang write_edif_attrprop ))

backends/scripts/write_btor_no_driver.ys

-read_verilog ../top.v
-memory
-write_btor btor.btor

backends/write_btor_init_assert/top.v

@@ -29,7 +29,7 @@ always @(posedge x) begin
     assume(too);    
     assume(s_eventually too);
 end
-always @(negedge x) begin
+always @(posedge x) begin
     if ($initstate)
         cout <= 0;
         cout <=  y + A + foo;