Element = Lattice = Model = Element: Ni
Lattice: hcp
Model: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_Ni__MO_758825945924_003
Computed model cutoff of 8.13294999513779 Angstroms
Computed isolated atomic energy of 0.0 eV for species Ni

==============================================================================
==============================================================================
 Starting optimization to find optimum lattice constant 'a' with c/a fixed to
 sqrt(8/3)
==============================================================================
==============================================================================


Attempting to perform relaxation using initial lattice constant guess of a = 1.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 84
Results for this minimization:
  a = 2.4941226303577455, total energy = -16.77284299601181

Attempting to perform relaxation using initial lattice constant guess of a = 1.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.494122599624097, total energy = -16.772842996011875

Attempting to perform relaxation using initial lattice constant guess of a = 1.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.4941226015798748, total energy = -16.772842996011835

Attempting to perform relaxation using initial lattice constant guess of a = 1.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.4941225886344958, total energy = -16.772842996011853

Attempting to perform relaxation using initial lattice constant guess of a = 1.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.494122599624099, total energy = -16.77284299601187

Attempting to perform relaxation using initial lattice constant guess of a = 1.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.4941225832677465, total energy = -16.772842996011818

Attempting to perform relaxation using initial lattice constant guess of a = 1.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 35
         Function evaluations: 77
Results for this minimization:
  a = 2.4941225886344913, total energy = -16.772842996011885

Attempting to perform relaxation using initial lattice constant guess of a = 1.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 85
Results for this minimization:
  a = 2.49412257730728, total energy = -16.772842996011843

Attempting to perform relaxation using initial lattice constant guess of a = 2.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.4941226303577437, total energy = -16.772842996011804

Attempting to perform relaxation using initial lattice constant guess of a = 2.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 33
         Function evaluations: 71
Results for this minimization:
  a = 2.494122630357743, total energy = -16.77284299601179

Attempting to perform relaxation using initial lattice constant guess of a = 2.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 34
         Function evaluations: 73
Results for this minimization:
  a = 2.494122606329621, total energy = -16.77284299601184

Attempting to perform relaxation using initial lattice constant guess of a = 2.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 32
         Function evaluations: 71
Results for this minimization:
  a = 2.4941225886344904, total energy = -16.772842996011878

Attempting to perform relaxation using initial lattice constant guess of a = 2.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 32
         Function evaluations: 68
Results for this minimization:
  a = 2.4941226015798748, total energy = -16.772842996011832

Attempting to perform relaxation using initial lattice constant guess of a = 2.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 33
         Function evaluations: 72
Results for this minimization:
  a = 2.4941226147115234, total energy = -16.772842996011825

Attempting to perform relaxation using initial lattice constant guess of a = 2.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 34
         Function evaluations: 73
Results for this minimization:
  a = 2.4941225886344904, total energy = -16.77284299601187

Attempting to perform relaxation using initial lattice constant guess of a = 2.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 34
         Function evaluations: 75
Results for this minimization:
  a = 2.494122584490105, total energy = -16.77284299601181

Attempting to perform relaxation using initial lattice constant guess of a = 3.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 80
Results for this minimization:
  a = 2.494122601579873, total energy = -16.77284299601182

Attempting to perform relaxation using initial lattice constant guess of a = 3.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.4941226189548615, total energy = -16.77284299601184

Attempting to perform relaxation using initial lattice constant guess of a = 3.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.4941225967369967, total energy = -16.772842996011864

Attempting to perform relaxation using initial lattice constant guess of a = 3.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.494122606015298, total energy = -16.77284299601186

Attempting to perform relaxation using initial lattice constant guess of a = 3.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 80
Results for this minimization:
  a = 2.4941225886344904, total energy = -16.772842996011864

Attempting to perform relaxation using initial lattice constant guess of a = 3.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 80
Results for this minimization:
  a = 2.4941225986462063, total energy = -16.772842996011818

Attempting to perform relaxation using initial lattice constant guess of a = 3.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.494122588657774, total energy = -16.772842996011807

Attempting to perform relaxation using initial lattice constant guess of a = 3.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.494122609056645, total energy = -16.772842996011832

Attempting to perform relaxation using initial lattice constant guess of a = 4.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.4941226184368115, total energy = -16.77284299601181

Attempting to perform relaxation using initial lattice constant guess of a = 4.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 86
Results for this minimization:
  a = 2.494122639761192, total energy = -16.77284299601177

Attempting to perform relaxation using initial lattice constant guess of a = 4.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.4941226174938462, total energy = -16.772842996011832

Attempting to perform relaxation using initial lattice constant guess of a = 4.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.4941225866787136, total energy = -16.772842996011846

Attempting to perform relaxation using initial lattice constant guess of a = 4.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 84
Results for this minimization:
  a = 2.494122607167805, total energy = -16.772842996011864

Attempting to perform relaxation using initial lattice constant guess of a = 4.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.4941226067021476, total energy = -16.77284299601184

Attempting to perform relaxation using initial lattice constant guess of a = 4.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 83
Results for this minimization:
  a = 2.494122588634492, total energy = -16.77284299601188

Attempting to perform relaxation using initial lattice constant guess of a = 4.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.494122583419081, total energy = -16.772842996011804

Attempting to perform relaxation using initial lattice constant guess of a = 5.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.4941226015798748, total energy = -16.772842996011825

Attempting to perform relaxation using initial lattice constant guess of a = 5.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.4941226366907308, total energy = -16.772842996011775

Attempting to perform relaxation using initial lattice constant guess of a = 5.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.494122615200466, total energy = -16.77284299601181

Attempting to perform relaxation using initial lattice constant guess of a = 5.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.4941226168302837, total energy = -16.77284299601184

Attempting to perform relaxation using initial lattice constant guess of a = 5.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.494122588634487, total energy = -16.77284299601186

Attempting to perform relaxation using initial lattice constant guess of a = 5.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.494122619740665, total energy = -16.77284299601183

Attempting to perform relaxation using initial lattice constant guess of a = 5.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 82
Results for this minimization:
  a = 2.4941225839545895, total energy = -16.772842996011807

Attempting to perform relaxation using initial lattice constant guess of a = 5.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 84
Results for this minimization:
  a = 2.4941225846298014, total energy = -16.772842996011796

Attempting to perform relaxation using initial lattice constant guess of a = 6.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 41
         Function evaluations: 88
Results for this minimization:
  a = 2.494122631475321, total energy = -16.772842996011835

Attempting to perform relaxation using initial lattice constant guess of a = 6.125 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.4941226140697794, total energy = -16.77284299601181

Attempting to perform relaxation using initial lattice constant guess of a = 6.25 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 84
Results for this minimization:
  a = 2.4941226189548615, total energy = -16.77284299601182

Attempting to perform relaxation using initial lattice constant guess of a = 6.375 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 88
Results for this minimization:
  a = 2.49412258271186, total energy = -16.77284299601184

Attempting to perform relaxation using initial lattice constant guess of a = 6.5 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.494122602790587, total energy = -16.772842996011843

Attempting to perform relaxation using initial lattice constant guess of a = 6.625 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 81
Results for this minimization:
  a = 2.4941226071678013, total energy = -16.772842996011853

Attempting to perform relaxation using initial lattice constant guess of a = 6.75 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 83
Results for this minimization:
  a = 2.4941226060152943, total energy = -16.77284299601185

Attempting to perform relaxation using initial lattice constant guess of a = 6.875 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 40
         Function evaluations: 86
Results for this minimization:
  a = 2.494122613861691, total energy = -16.772842996011814

Attempting to perform relaxation using initial lattice constant guess of a = 7.0 Angstroms (c/a fixed at sqrt(8/3))

Optimization terminated successfully.
         Current function value: -16.772843
         Iterations: 39
         Function evaluations: 85
Results for this minimization:
  a = 2.4941225886344887, total energy = -16.77284299601186

Attempting to perform relaxation using initial lattice constant guess of a = 7.125 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.125 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7125000000000128 Angstroms and c = -1.1635076278220304 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.25 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.25 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7250000000000156 Angstroms and c = -1.1839200423452283 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.375 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.375 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7375000000000078 Angstroms and c = -1.2043324568684086 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.5 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.5 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.75 Angstroms and c = -1.224744871391589 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.625 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.625 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7624999999999922 Angstroms and c = -1.2451572859147695 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.75 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.75 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7750000000000234 Angstroms and c = -1.2655697004380135 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 7.875 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 7.875 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.7875000000000156 Angstroms and c = -1.285982114961194 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 8.0 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 8.0 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.8000000000000078 Angstroms and c = -1.3063945294843744 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 8.125 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 8.125 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.8125 Angstroms and c = -1.3268069440075547 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


Attempting to perform relaxation using initial lattice constant guess of a = 8.25 Angstroms (c/a fixed at sqrt(8/3))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 8.25 Angstroms
Exception message:
Attempted to evaluate energy at a = -0.8249999999999922 Angstroms and c = -1.3472193585307353 Angstroms; the model cutoff was estimated to be 8.13294999513779 Angstroms.  This may mean that the model does not possess close-range repulsive forces to prevent system collapse.  In order to prevent possible neighbor list overflow, both a and c must be greater than 0.1 times the model cutoff...
Continuing...


==============================================================================
==============================================================================
 Starting optimization with both a and c/a relaxed
==============================================================================
==============================================================================


Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 3.2583081056554746 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 66
         Function evaluations: 144
Results for this minimization:
  a = 2.49386220740059, c = 4.0737334451202285, total energy = -16.772845917699826

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 3.4619523622589417 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 65
         Function evaluations: 144
Results for this minimization:
  a = 2.4938622005995548, c = 4.073733453591845, total energy = -16.772845917699847

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 3.6655966188624087 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 68
         Function evaluations: 147
Results for this minimization:
  a = 2.4938622292476147, c = 4.0737334924464275, total energy = -16.77284591769981

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 3.869240875465876 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 73
         Function evaluations: 160
Results for this minimization:
  a = 2.493862186869066, c = 4.073733491033504, total energy = -16.772845917699836

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 4.072885132069343 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 65
         Function evaluations: 145
Results for this minimization:
  a = 2.49386217678238, c = 4.073733511414341, total energy = -16.772845917699815

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 4.2765293886728095 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 69
         Function evaluations: 149
Results for this minimization:
  a = 2.4938621894192092, c = 4.0737336126444195, total energy = -16.7728459176998

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 4.4801736452762775 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 67
         Function evaluations: 147
Results for this minimization:
  a = 2.4938622156663905, c = 4.07373348979226, total energy = -16.772845917699826

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 4.683817901879744 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 70
         Function evaluations: 152
Results for this minimization:
  a = 2.4938621671151573, c = 4.073733456066439, total energy = -16.772845917699808

Attempting to perform relaxation using initial lattice constant guess of a = [2.49412259] Angstroms and c = 4.887462158483212 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.772846
         Iterations: 76
         Function evaluations: 160
Results for this minimization:
  a = 2.4938621898525053, c = 4.0737335645466395, total energy = -16.772845917699815

==============================================================================
==============================================================================
 Finished with optimization
==============================================================================
==============================================================================

 Final lattice Constants:
   a = 2.4938622005995548 Angstroms, c = 4.073733453591845 Angstroms, c/a = 1.633504

 Total energy: -16.772845917699847 eV

 Cohesive energy: -4.193211479424962 eV/atom

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