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Diffstat (limited to 'examples/smtbmc/demo1.v')
| -rw-r--r-- | examples/smtbmc/demo1.v | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/smtbmc/demo1.v b/examples/smtbmc/demo1.v index 2e628b7da..b1e505bdd 100644 --- a/examples/smtbmc/demo1.v +++ b/examples/smtbmc/demo1.v @@ -1,5 +1,5 @@ module demo1(input clk, input addtwo, output iseven); - reg [3:0] cnt = 0; + reg [3:0] cnt; wire [3:0] next_cnt; inc inc_inst (addtwo, iseven, cnt, next_cnt); @@ -8,6 +8,7 @@ module demo1(input clk, input addtwo, output iseven); cnt = (iseven ? cnt == 10 : cnt == 11) ? 0 : next_cnt; assert property (cnt != 15); + initial assume (!cnt[3] && !cnt[0]); // initial predict ((iseven && addtwo) || cnt == 9); endmodule |