You can attack the problem by taking out the repeated variable or introducing a new variable for the repeated one and adding a new constraint. Ex:
2*x1*x2 >= x3^2
2*x1*x4 >= x5^2
In here x1 variable is used in both of the cones. By substituting x1 with x6 will solve the problem.
2*x1*x2 >= x3^2
2*x6*x4 >= x5^2
x6 - x1 = 0 (Which means x6 = x1)
