Abstract: A computer implemented method is provided for performing symbolic execution on a symbolic representation of a computer program comprising a sequence of software instructions represented at least by variables, memories and expressions. The method is operated on-the-fly and comprises for each software instruction of the computer program: analyzing an initial symbolic representation of a software instruction to determine if a simplification may be applied to any memory-access operation included in the initial symbolic representation of the software instruction; in case of determining a simplification, generating a simplified symbolic representation of the software instruction to replace the initial symbolic representation; and generating a new symbolic representation of the computer program with the simplified symbolic representation of the software instruction.

Abstract: Methods, systems, and computer program products for re-issuing a travel reservation based on a travel category associated with the specific travel reservation. The travel reservation is associated with one of a first travel category and a second travel category. The first travel category includes a plurality of machine-readable codes associated with the travel reservation. In response to determining the travel reservation is associated with the first travel category, the travel reservation is re-issued by a computer-based on the plurality of machine-readable codes associated with the travel reservation. In response to determining that the travel reservation is associated with the second travel category, the computer determines if the travel reservation includes data expressed in machine-readable form. If the travel reservation includes the data expressed in machine-readable form, the computer generates a plurality of prepopulated fields in a format compatible with the first travel category.

Abstract: Systems, methods, and computer program products for processing database records. A database management system may receive a query identifying a ticket in a ticket database that is being exchanged. In response to receiving the query, the database management system may retrieve, from a transitional database, a transitional record that is indexed to the ticket. The transitional record may include a disruption index having one or more arrays each defining a set of linked data elements. The database management system may retrieve additional tickets from the ticket database that are identified by the data elements, and arrange the tickets into an ordered set that defines a disruption history for the ticket being exchanged. The database management system may then generate a hybrid itinerary based on the disruption history, and use the hybrid itinerary to determine a value for the ticket being exchanged.

Abstract: A computer-implemented method for determining infeasible conditions is disclosed. The method comprises executing a backward-bounded symbolic analysis on a control flow graph of a dynamic program.

Abstract: A computer-implemented method for determining infeasible conditions is disclosed. The method comprises executing a backward-bounded symbolic analysis on a control flow graph of a dynamic program.

Abstract: Systems, methods, and computer program products for processing database records. A database management system may receive a query identifying a ticket in a ticket database that is being exchanged. In response to receiving the query, the database management system may retrieve, from a transitional database, a transitional record that is indexed to the ticket. The transitional record may include a disruption index having one or more arrays each defining a set of linked data elements. The database management system may retrieve additional tickets from the ticket database that are identified by the data elements, and arrange the tickets into an ordered set that defines a disruption history for the ticket being exchanged. The database management system may then generate a hybrid itinerary based on the disruption history, and use the hybrid itinerary to determine a value for the ticket being exchanged.

Abstract: Systems, methods, and computer program products for creating and managing database records. A database management system receives requests to exchange tickets. In response to determining that a request requires enhanced processing, the system queries a penalty collection database for instructions on providing the enhanced processing. The instructions may be identified based on an identity of a provider of a travel product and/or the market in which the product is sold. The penalty collection database may include a table that provides instructions on collecting the penalty which are indexed to a specific provider, market, or combination of provider and market. If a penalty is owed for the exchange, the instructions may cause the system to implement a specific method of collecting the penalty. The instructions may cause the penalty to be encoded and stored in a manner specific to the provider and/or market to avoid an incompatibility with another system.

Abstract: Methods, systems, and computer program products for re-issuing a travel reservation based on a travel category associated with the specific travel reservation. The travel reservation is associated with one of a first travel category and a second travel category. The first travel category includes a plurality of machine-readable codes associated with the travel reservation. In response to determining the travel reservation is associated with the first travel category, the travel reservation is re-issued by a computer-based on the plurality of machine-readable codes associated with the travel reservation. In response to determining that the travel reservation is associated with the second travel category, the computer determines if the travel reservation includes data expressed in machine-readable form. If the travel reservation includes the data expressed in machine-readable form, the computer generates a plurality of prepopulated fields in a format compatible with the first travel category.

Abstract: A method, apparatus and program product perform re-pricing operations for low cost carrier travel itineraries in connection with itinerary changes in a manner that is compatible with systems and/or workflows utilized for standard carriers. Re-pricing operations may include, for example, access to a pricing engine for a low cost carrier to retrieve pricing information for a changed travel itinerary, along with the generation of one or more pricing records and the population of a passenger name record for the travel itinerary using the retrieved pricing information.