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31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
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read_verilog <<EOT
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module half_clock (CLK, Q, magic);
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input CLK;
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output reg Q = 0;
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input magic;
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always @(posedge CLK)
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Q <= ~Q;
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endmodule
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EOT
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proc
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design -save half_clock
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sat -set-init-undef -enable_undef -verify -seq 5 -set-at 1 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 1 Q 0 -set-at 2 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 2 Q 0 -set-at 3 Q 0
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abstract -state -initstates 1 */Q
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sat -set-init-undef -enable_undef -verify -seq 5 -set-at 1 Q 0 -set-at 2 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 2 Q 0 -set-at 3 Q 0
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design -load half_clock
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 1 Q 0 -set-at 2 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 2 Q 0 -set-at 3 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 3 Q 0 -set-at 4 Q 0
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abstract -state -initstates 2 */Q
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sat -set-init-undef -enable_undef -verify -seq 5 -set-at 1 Q 0 -set-at 2 Q 0
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sat -set-init-undef -enable_undef -verify -seq 5 -set-at 1 Q 0 -set-at 2 Q 0 -set-at 3 Q 0
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sat -set-init-undef -enable_undef -falsify -seq 5 -set-at 3 Q 0 -set-at 4 Q 0
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