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This is Test                : ElasticConstantsFirstStrainGradientNumerical_fcc_Cu__TE_948689877911_000
Results for KIM Model       : Pair_Morse_Shifted_GirifalcoWeizer_MedCutoff_Cu__MO_173787283511_001
Crystal strucutre           : fcc
Species                     : Cu
 Relaxing the crystal to its equilibrium lattice constant
 --------------------------------------------------------
     Lattice spacing                energy
             6.34474              -0.45136
             2.11491              44.82425
             5.28728              -1.20020
             3.17237              -2.40676
             3.70110              -3.46968
             3.17237              -2.40676
             3.96546              -3.18593
             3.43673              -3.36410
             3.56891              -3.48784
             3.43673              -3.36410
             3.63501              -3.49311
             3.70110              -3.46968
             3.60196              -3.49436
             3.56891              -3.48784
             3.61848              -3.49466
             3.63501              -3.49311
             3.61022              -3.49473
             3.60196              -3.49436
             3.61435              -3.49476
             3.61848              -3.49466
             3.61229              -3.49476
             3.61022              -3.49473
             3.61332              -3.49476
             3.61435              -3.49476
             3.61280              -3.49476
             3.61384              -3.49476
             3.61306              -3.49476
             3.61280              -3.49476
             3.61319              -3.49477
             3.61332              -3.49476
             3.61313              -3.49477
             3.61306              -3.49476
             3.61316              -3.49477
             3.61319              -3.49477
             3.61314              -3.49477
             3.61313              -3.49477
             3.61315              -3.49477
             3.61316              -3.49477
             3.61315              -3.49477
             3.61314              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
             3.61315              -3.49477
Equilibrium lattice spacing :    3.6131481151