Element = Lattice = Model = Element: Cu
Lattice: hcp
Model: EAM_Dynamo_MendelevKramerBecker_2008_Cu__MO_945691923444_005
Computed model cutoff of 5.99943987373267 Angstroms
Computed isolated atomic energy of 0.0 eV for species Cu

==============================================================================
==============================================================================
 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))

Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 1.0 Angstroms
Exception message:
Calling "kim_model.compute" failed.

Continuing...


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: -13.105145
         Iterations: 39
         Function evaluations: 86
Results for this minimization:
  a = 2.572696832288056, total energy = -13.10514526242336

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: -13.105145
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.5726967863738537, total energy = -13.105145262423346

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: -13.105145
         Iterations: 40
         Function evaluations: 86
Results for this minimization:
  a = 2.57269678917947, total energy = -13.105145262423354

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: -13.105145
         Iterations: 37
         Function evaluations: 81
Results for this minimization:
  a = 2.5726967899594477, total energy = -13.105145262423353

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: -13.105145
         Iterations: 37
         Function evaluations: 80
Results for this minimization:
  a = 2.572696807701143, total energy = -13.105145262423388

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: -13.105145
         Iterations: 37
         Function evaluations: 78
Results for this minimization:
  a = 2.5726967954076834, total energy = -13.105145262423369

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: -13.105145
         Iterations: 35
         Function evaluations: 76
Results for this minimization:
  a = 2.572696801624261, total energy = -13.105145262423381

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: -13.105145
         Iterations: 35
         Function evaluations: 76
Results for this minimization:
  a = 2.572696793079378, total energy = -13.105145262423404

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: -13.105145
         Iterations: 34
         Function evaluations: 73
Results for this minimization:
  a = 2.572696791682393, total energy = -13.105145262423383

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: -13.105145
         Iterations: 36
         Function evaluations: 81
Results for this minimization:
  a = 2.572696828935296, total energy = -13.105145262423372

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: -13.105145
         Iterations: 34
         Function evaluations: 72
Results for this minimization:
  a = 2.572696814016671, total energy = -13.105145262423413

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: -13.105145
         Iterations: 32
         Function evaluations: 70
Results for this minimization:
  a = 2.5726967863738537, total energy = -13.105145262423344

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: -13.105145
         Iterations: 34
         Function evaluations: 72
Results for this minimization:
  a = 2.5726968053088064, total energy = -13.105145262423413

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: -13.105145
         Iterations: 34
         Function evaluations: 74
Results for this minimization:
  a = 2.5726968051865704, total energy = -13.10514526242339

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: -13.105145
         Iterations: 34
         Function evaluations: 71
Results for this minimization:
  a = 2.5726968039991336, total energy = -13.105145262423378

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: -13.105145
         Iterations: 34
         Function evaluations: 75
Results for this minimization:
  a = 2.572696789540349, total energy = -13.105145262423362

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: -13.105145
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.572696786519373, total energy = -13.105145262423404

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: -13.105145
         Iterations: 35
         Function evaluations: 75
Results for this minimization:
  a = 2.5726968075498013, total energy = -13.105145262423402

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: -13.105145
         Iterations: 36
         Function evaluations: 75
Results for this minimization:
  a = 2.572696839491253, total energy = -13.105145262423353

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: -13.105145
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.572696800949051, total energy = -13.105145262423436

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: -13.105145
         Iterations: 36
         Function evaluations: 77
Results for this minimization:
  a = 2.572696855664252, total energy = -13.105145262423312

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: -13.105145
         Iterations: 36
         Function evaluations: 78
Results for this minimization:
  a = 2.5726968015369494, total energy = -13.105145262423367

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: -13.105145
         Iterations: 36
         Function evaluations: 76
Results for this minimization:
  a = 2.5726968157570766, total energy = -13.105145262423415

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: -13.105145
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.5726967930793756, total energy = -13.10514526242341

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: -13.105145
         Iterations: 37
         Function evaluations: 79
Results for this minimization:
  a = 2.57269681748003, total energy = -13.105145262423369

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: -13.105145
         Iterations: 38
         Function evaluations: 79
Results for this minimization:
  a = 2.572696794057262, total energy = -13.105145262423392

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: -13.105145
         Iterations: 37
         Function evaluations: 80
Results for this minimization:
  a = 2.572696814313531, total energy = -13.10514526242337

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: -13.105145
         Iterations: 38
         Function evaluations: 84
Results for this minimization:
  a = 2.5726968348026222, total energy = -13.10514526242333

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: -13.105145
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.572696801813434, total energy = -13.105145262423386

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: -13.105145
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.5726968131319166, total energy = -13.105145262423408

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: -13.105145
         Iterations: 39
         Function evaluations: 84
Results for this minimization:
  a = 2.572696828586045, total energy = -13.105145262423356

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: -13.105145
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.5726967891678214, total energy = -13.105145262423363

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: -13.105145
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.572696809144685, total energy = -13.105145262423383

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: -13.105145
         Iterations: 39
         Function evaluations: 81
Results for this minimization:
  a = 2.5726968053088046, total energy = -13.105145262423402

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: -13.105145
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.5726968325499926, total energy = -13.105145262423411

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: -13.105145
         Iterations: 40
         Function evaluations: 83
Results for this minimization:
  a = 2.572696805186567, total energy = -13.10514526242338

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: -13.105145
         Iterations: 39
         Function evaluations: 83
Results for this minimization:
  a = 2.5726968000963097, total energy = -13.105145262423388

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: -13.105145
         Iterations: 38
         Function evaluations: 82
Results for this minimization:
  a = 2.57269680332974, total energy = -13.105145262423402

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: -13.105145
         Iterations: 41
         Function evaluations: 85
Results for this minimization:
  a = 2.57269680079771, total energy = -13.105145262423324

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: 0.000000
         Iterations: 33
         Function evaluations: 97
Results for this minimization:
  a = 6.300000000000001, total energy = 0.0

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


Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 3.3609570267817586 = ([1.30639453] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 76
         Function evaluations: 154
Results for this minimization:
  a = 2.5689065595361074, c = 4.2111749642691105, total energy = -13.105455413687173

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 3.5710168409556187 = ([1.38804419] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 69
         Function evaluations: 149
Results for this minimization:
  a = 2.568906524936704, c = 4.211175065836209, total energy = -13.10545541368721

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 3.7810766551294788 = ([1.46969385] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 68
         Function evaluations: 142
Results for this minimization:
  a = 2.5689065035913345, c = 4.211175037417554, total energy = -13.105455413687181

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 3.991136469303339 = ([1.5513435] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 72
         Function evaluations: 154
Results for this minimization:
  a = 2.568906522886122, c = 4.211175015406468, total energy = -13.105455413687201

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 4.2011962834771985 = ([1.63299316] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 72
         Function evaluations: 155
Results for this minimization:
  a = 2.5689065390603876, c = 4.211175014638149, total energy = -13.105455413687194

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 4.411256097651059 = ([1.71464282] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 66
         Function evaluations: 143
Results for this minimization:
  a = 2.5689065154080986, c = 4.211175032956799, total energy = -13.105455413687181

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 4.621315911824919 = ([1.79629248] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 78
         Function evaluations: 163
Results for this minimization:
  a = 2.5689065280487036, c = 4.211175005532797, total energy = -13.105455413687206

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 4.831375725998779 = ([1.87794214] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 67
         Function evaluations: 148
Results for this minimization:
  a = 2.568906487034897, c = 4.211175099046814, total energy = -13.105455413687174

Attempting to perform relaxation using initial lattice constant guess of a = [2.5726968] Angstroms and c = 5.041435540172639 = ([1.95959179] * a) Angstroms

Optimization terminated successfully.
         Current function value: -13.105455
         Iterations: 71
         Function evaluations: 156
Results for this minimization:
  a = 2.5689064837458617, c = 4.211175050462652, total energy = -13.105455413687167

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

 Final lattice Constants:
   a = 2.568906524936704 Angstroms, c = 4.211175065836209 Angstroms, c/a = 1.639287

 Total energy: -13.10545541368721 eV

 Cohesive energy: -3.2763638534218025 eV/atom

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