    MAXIMUM_NUMBER_OF_ITERATIONS 4
    FORWARD_SIMULATION_FILENAME ./3x1x3_transient.in
    EXTERNAL_FILE measurements_pres_3x1x3.txt
    EXTERNAL_FILE parameter_porosity.txt
    TARGET_CHI2 1d-15
    BETA 0.00001
    EXTERNAL_FILE inv_zflow_3x1x3_constrained_blocks-por.txt
