fix difficulty

consensus/bor/bor.go

@@ -353,7 +353,7 @@ func (c *Bor) verifyHeader(chain consensus.ChainReader, header *types.Header, pa
 	}
 	// Ensure that the block's difficulty is meaningful (may not be correct at this point)
 	if number > 0 {
-		if header.Difficulty == nil || (header.Difficulty.Cmp(diffInTurn) != 0 && header.Difficulty.Cmp(diffNoTurn) != 0) {
+		if header.Difficulty == nil {
 			return errInvalidDifficulty
 		}
 	}

contracts/validatorset/contract/BorValidatorSet.sol

@@ -39,12 +39,16 @@ contract BorValidatorSet is ValidatorSet {
 
 	/// Get current validator set (last enacted or initial if no changes ever made) with current stake.
 	function getValidators() external view returns (address[] memory, uint256[] memory) {
-	    address[] memory d = new address[](2);
+	    address[] memory d = new address[](4);
 	    d[0] = 0x9fB29AAc15b9A4B7F17c3385939b007540f4d791;
 	    d[1] = 0x96C42C56fdb78294F96B0cFa33c92bed7D75F96a;
-	    uint256[] memory p = new uint256[](2);
+			d[2] = 0x7D58F677794ECdB751332c9A507993dB1b008874;
+	    d[3] = 0xE4F1A86989758D4aC65671855B9a29B843bb865D;
+	    uint256[] memory p = new uint256[](4);
 	    p[0] = 10;
 	    p[1] = 20;
+	    p[2] = 30;
+	    p[3] = 40;
 	    return (d, p);
 	}
 }
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