Element = Lattice = Model = Element: Si
Lattice: hcp
Model: EDIP_LAMMPS_JiangMorganSzlufarska_2012_SiC__MO_667792548433_000
Computed model cutoff of 2.933722001612209 Angstroms
Computed isolated atomic energy of 0.0 eV for species Si

==============================================================================
==============================================================================
 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: 0.000000
         Iterations: 39
         Function evaluations: 110
Results for this minimization:
  a = 3.350000000000005, total energy = 0.0

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: -15.679098
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.7855366898700584, total energy = -15.679097508314998

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: -15.679098
         Iterations: 42
         Function evaluations: 89
Results for this minimization:
  a = 2.7855366898002103, total energy = -15.679097508315023

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: -15.679098
         Iterations: 39
         Function evaluations: 82
Results for this minimization:
  a = 2.7855366909294457, total energy = -15.679097508315023

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: -15.679098
         Iterations: 42
         Function evaluations: 90
Results for this minimization:
  a = 2.785536689870063, total energy = -15.679097508315003

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: -15.679098
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.7855366887524746, total energy = -15.679097508314973

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: -15.679098
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.785536692943424, total energy = -15.679097508315012

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: -15.679098
         Iterations: 37
         Function evaluations: 77
Results for this minimization:
  a = 2.785536692943424, total energy = -15.67909750831501

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: -15.679098
         Iterations: 35
         Function evaluations: 72
Results for this minimization:
  a = 2.785536692291501, total energy = -15.679097508315014

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: -15.679098
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.785536692943425, total energy = -15.679097508315012

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: -15.679098
         Iterations: 35
         Function evaluations: 73
Results for this minimization:
  a = 2.7855366898700593, total energy = -15.679097508315005

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: -15.679098
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 2.785536691581364, total energy = -15.679097508315015

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: -15.679098
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 2.7855366898002103, total energy = -15.679097508315015

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: -15.679098
         Iterations: 32
         Function evaluations: 67
Results for this minimization:
  a = 2.7855366929434244, total energy = -15.679097508315

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: -15.679098
         Iterations: 33
         Function evaluations: 69
Results for this minimization:
  a = 2.7855366909294386, total energy = -15.679097508315033

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: -15.679098
         Iterations: 33
         Function evaluations: 68
Results for this minimization:
  a = 2.7855366926436544, total energy = -15.679097508315015

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: -15.679098
         Iterations: 34
         Function evaluations: 73
Results for this minimization:
  a = 2.7855366898700584, total energy = -15.679097508315003

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.125, total energy = 0.0

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.25, total energy = 0.0

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.375, total energy = 0.0

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.5, total energy = 0.0

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


Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 3.63900989470819 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.217475
         Iterations: 76
         Function evaluations: 158
Results for this minimization:
  a = 3.4568852583384335, c = 3.0254477317536157, total energy = -16.21747517025369

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 3.8664480131274517 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.240494
         Iterations: 86
         Function evaluations: 185
Results for this minimization:
  a = 3.5492517737945857, c = 2.8800913464917848, total energy = -16.24049368855721

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 4.093886131546713 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -16.240494
         Iterations: 86
         Function evaluations: 175
Results for this minimization:
  a = 3.5492517669065733, c = 2.8800913397538466, total energy = -16.240493688557212

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 4.321324249965976 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.679098
         Iterations: 71
         Function evaluations: 151
Results for this minimization:
  a = 2.785537971273222, c = 4.548758192452213, total energy = -15.679097508416206

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 4.548762368385237 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.679098
         Iterations: 75
         Function evaluations: 153
Results for this minimization:
  a = 2.785537978655302, c = 4.548758169879742, total energy = -15.679097508416195

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 4.776200486804498 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.624447
         Iterations: 92
         Function evaluations: 199
Results for this minimization:
  a = 2.5343927670710955, c = 5.086894291637206, total energy = -15.624447155357

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 5.0036386052237605 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.624447
         Iterations: 82
         Function evaluations: 205
Results for this minimization:
  a = 2.5343927665763877, c = 5.432824693478569, total energy = -15.624447155357002

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 5.231076723643023 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.624447
         Iterations: 86
         Function evaluations: 214
Results for this minimization:
  a = 2.534392770719129, c = 5.834695020625601, total energy = -15.624447155356998

Attempting to perform relaxation using initial lattice constant guess of a = [2.78553669] Angstroms and c = 5.458514842062284 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -15.624447
         Iterations: 89
         Function evaluations: 217
Results for this minimization:
  a = 2.534392770201506, c = 5.8651558812535685, total energy = -15.624447155357