Element = Lattice = Model = Element: Si
Lattice: hcp
Model: Sim_LAMMPS_GWZBL_Samolyuk_2016_SiC__SM_720598599889_000
Computed model cutoff of 2.4999980016425574 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: -6.534328
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.4059856727719335, total energy = -6.534328013876024

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: -6.534328
         Iterations: 39
         Function evaluations: 81
Results for this minimization:
  a = 2.405985674075783, total energy = -6.5343280138759905

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: -6.534328
         Iterations: 41
         Function evaluations: 88
Results for this minimization:
  a = 2.4059856752865016, total energy = -6.534328013875987

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: -6.534328
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.4059856701642315, total energy = -6.534328013876032

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: -6.534328
         Iterations: 39
         Function evaluations: 82
Results for this minimization:
  a = 2.4059856722597055, total energy = -6.534328013876015

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: -6.534328
         Iterations: 37
         Function evaluations: 76
Results for this minimization:
  a = 2.405985672469253, total energy = -6.534328013876008

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: -6.534328
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 2.4059856701642275, total energy = -6.534328013876015

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: -6.534328
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.4059856714739, total energy = -6.534328013876005

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: 0.000000
         Iterations: 35
         Function evaluations: 101
Results for this minimization:
  a = 2.700000000000002, total energy = 0.0

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: -6.534328
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 2.405985672585666, total energy = -6.534328013876016

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: -6.534328
         Iterations: 32
         Function evaluations: 67
Results for this minimization:
  a = 2.405985669884831, total energy = -6.534328013875997

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: -6.534328
         Iterations: 32
         Function evaluations: 66
Results for this minimization:
  a = 2.405985673936084, total energy = -6.534328013875997

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: 0.000000
         Iterations: 32
         Function evaluations: 94
Results for this minimization:
  a = 2.625, total energy = 0.0

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: -6.534328
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 2.405985669675284, total energy = -6.534328013876032

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 2.75, total energy = 0.0

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 2.875, total energy = 0.0

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: 0.000000
         Iterations: 32
         Function evaluations: 95
Results for this minimization:
  a = 3.0, total energy = 0.0

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 = [2.40598567] Angstroms and c = 3.143166517520318 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -8.249021
         Iterations: 93
         Function evaluations: 187
Results for this minimization:
  a = 3.439535391460963, c = 2.4988627925238296, total energy = -8.24902087148748

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 3.339614424865338 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -8.249021
         Iterations: 100
         Function evaluations: 193
Results for this minimization:
  a = 3.439535386695872, c = 2.498862788433501, total energy = -8.249020871487474

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 3.536062332210358 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -8.249021
         Iterations: 90
         Function evaluations: 183
Results for this minimization:
  a = 3.439535396378555, c = 2.498862789815675, total energy = -8.249020871487476

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 3.732510239555378 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -8.249021
         Iterations: 81
         Function evaluations: 162
Results for this minimization:
  a = 3.4395353943339897, c = 2.4988627917039996, total energy = -8.249020871487463

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 3.9289581469003982 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -7.546593
         Iterations: 78
         Function evaluations: 194
Results for this minimization:
  a = 2.353501709458557, c = 4.239539705127043, total energy = -7.546592534203912

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 4.125406054245419 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -7.546593
         Iterations: 94
         Function evaluations: 200
Results for this minimization:
  a = 2.3535017085279297, c = 4.347495818151905, total energy = -7.546592534203905

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 4.321853961590438 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -7.546593
         Iterations: 84
         Function evaluations: 189
Results for this minimization:
  a = 2.3535017080917924, c = 4.397087746253298, total energy = -7.546592534203887

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 4.518301868935458 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -7.546593
         Iterations: 85
         Function evaluations: 201
Results for this minimization:
  a = 2.3535017058177545, c = 4.675286821004066, total energy = -7.546592534203881

Attempting to perform relaxation using initial lattice constant guess of a = [2.40598567] Angstroms and c = 4.714749776280478 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -7.546593
         Iterations: 90
         Function evaluations: 215
Results for this minimization:
  a = 2.3535017084550125, c = 4.837654294163314, total energy = -7.5465925342038895