Element = Lattice = Model = Element: Ag
Lattice: hcp
Model: MEAM_LAMMPS_GaoOteroAouadi_2013_AgTaO__MO_112077942578_000
Computed model cutoff of 6.200000001229384 Angstroms
Computed isolated atomic energy of 0.0 eV for species Ag

==============================================================================
==============================================================================
 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: -11.381988
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.885573899745945, total energy = -11.381987680092207

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: -11.381988
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.885573892854153, total energy = -11.381987680092204

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: -11.381988
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.885573891690001, total energy = -11.381987680092205

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: -11.381988
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.885573890712119, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.8855738945305376, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.885573912411929, total energy = -11.3819876800922

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: -11.381988
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.885573885135819, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 79
Results for this minimization:
  a = 2.8855738994898275, total energy = -11.38198768009221

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: -11.381988
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.885573892295363, total energy = -11.381987680092204

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: -11.381988
         Iterations: 35
         Function evaluations: 75
Results for this minimization:
  a = 2.8855738949030654, total energy = -11.381987680092205

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: -11.381988
         Iterations: 35
         Function evaluations: 76
Results for this minimization:
  a = 2.8855738911777733, total energy = -11.381987680092207

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: -11.381988
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 2.885573890805243, total energy = -11.381987680092207

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: -11.381988
         Iterations: 34
         Function evaluations: 73
Results for this minimization:
  a = 2.8855738919228315, total energy = -11.381987680092204

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: -11.381988
         Iterations: 33
         Function evaluations: 71
Results for this minimization:
  a = 2.885573895648122, total energy = -11.381987680092205

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: -11.381988
         Iterations: 32
         Function evaluations: 68
Results for this minimization:
  a = 2.8855738978832965, total energy = -11.381987680092205

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: -11.381988
         Iterations: 33
         Function evaluations: 71
Results for this minimization:
  a = 2.885573911480605, total energy = -11.381987680092202

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: -11.381988
         Iterations: 33
         Function evaluations: 71
Results for this minimization:
  a = 2.8855739034712307, total energy = -11.381987680092205

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: -11.381988
         Iterations: 34
         Function evaluations: 72
Results for this minimization:
  a = 2.8855738998390734, total energy = -11.381987680092204

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: -11.381988
         Iterations: 35
         Function evaluations: 75
Results for this minimization:
  a = 2.885573902726172, total energy = -11.381987680092205

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: -11.381988
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 2.8855738903395824, total energy = -11.381987680092202

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: -11.381988
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 2.8855738982558243, total energy = -11.381987680092204

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: -11.381988
         Iterations: 35
         Function evaluations: 74
Results for this minimization:
  a = 2.8855738978832943, total energy = -11.381987680092204

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: -11.381988
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.8855738872662187, total energy = -11.3819876800922

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: -11.381988
         Iterations: 36
         Function evaluations: 76
Results for this minimization:
  a = 2.885573890572412, total energy = -11.381987680092205

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: -11.381988
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.885573902726172, total energy = -11.381987680092205

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: -11.381988
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.8855738917365685, total energy = -11.381987680092204

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: -11.381988
         Iterations: 36
         Function evaluations: 76
Results for this minimization:
  a = 2.885573894903062, total energy = -11.381987680092202

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: -11.381988
         Iterations: 37
         Function evaluations: 80
Results for this minimization:
  a = 2.885573895648122, total energy = -11.381987680092205

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: -11.381988
         Iterations: 39
         Function evaluations: 82
Results for this minimization:
  a = 2.885573889501388, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.885573892109095, total energy = -11.381987680092207

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: -11.381988
         Iterations: 39
         Function evaluations: 82
Results for this minimization:
  a = 2.8855739005375662, total energy = -11.381987680092207

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: -11.381988
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.8855738960672133, total energy = -11.381987680092207

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: -11.381988
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.8855738937854767, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.88557389536872, total energy = -11.381987680092207

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: -11.381988
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.8855739020043965, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 80
Results for this minimization:
  a = 2.885573902959005, total energy = -11.381987680092204

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: -11.381988
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.8855738916725353, total energy = -11.381987680092204

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: -11.381988
         Iterations: 40
         Function evaluations: 85
Results for this minimization:
  a = 2.8855739014979918, total energy = -11.381987680092204

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: -11.381988
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.8855739029124323, total energy = -11.381987680092204

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: -11.381988
         Iterations: 40
         Function evaluations: 86
Results for this minimization:
  a = 2.8855738916259703, total energy = -11.381987680092205

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: -11.381988
         Iterations: 38
         Function evaluations: 81
Results for this minimization:
  a = 2.885573896765701, total energy = -11.381987680092204

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: -11.381988
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.8855739021673763, total energy = -11.381987680092205

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: -11.381988
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.885573897510767, total energy = -11.381987680092205

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


Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 3.769697956716368 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 78
         Function evaluations: 160
Results for this minimization:
  a = 2.882034203528664, c = 4.723727278229029, total energy = -11.382169647375104

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 4.005304079011141 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 71
         Function evaluations: 153
Results for this minimization:
  a = 2.882034201343966, c = 4.723727299050137, total energy = -11.382169647375106

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 4.240910201305915 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 73
         Function evaluations: 151
Results for this minimization:
  a = 2.8820341918067283, c = 4.723727330941152, total energy = -11.382169647375108

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 4.476516323600688 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 68
         Function evaluations: 146
Results for this minimization:
  a = 2.88203419728741, c = 4.723727305386756, total energy = -11.38216964737511

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 4.712122445895461 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 65
         Function evaluations: 140
Results for this minimization:
  a = 2.8820342011654185, c = 4.723727306641979, total energy = -11.382169647375108

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 4.947728568190234 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 69
         Function evaluations: 150
Results for this minimization:
  a = 2.8820341862178545, c = 4.7237273336556385, total energy = -11.382169647375108

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 5.183334690485007 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 68
         Function evaluations: 147
Results for this minimization:
  a = 2.8820341999119115, c = 4.723727314797448, total energy = -11.382169647375106

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 5.4189408127797805 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 71
         Function evaluations: 149
Results for this minimization:
  a = 2.8820341878915885, c = 4.723727345706371, total energy = -11.382169647375106

Attempting to perform relaxation using initial lattice constant guess of a = [2.8855739] Angstroms and c = 5.654546935074554 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -11.382170
         Iterations: 75
         Function evaluations: 154
Results for this minimization:
  a = 2.8820341916580094, c = 4.7237273273687075, total energy = -11.382169647375106

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

 Final lattice Constants:
   a = 2.88203419728741 Angstroms, c = 4.723727305386756 Angstroms, c/a = 1.639025

 Total energy: -11.38216964737511 eV

 Cohesive energy: -2.8455424118437773 eV/atom

==============================================================================
==============================================================================