573A.3  Determination of dispute.
  Any party to the contract may have the issue in dispute determined by filing in the district court of the county in which the public improvement or any part thereof is located a verified petition which shall allege in detail the ultimate facts upon which the petitioner relies for the termination of such contract. All subcontractors and the sureties upon all bonds given in connection with the contract and subcontracts shall be made parties to the proceeding.
[C54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §573A.3]