Element = Lattice = Model = Element: He Lattice: hcp Model: EAM_Dynamo_BonnyTerentyev_2014EAM1_W__MO_292520929154_000 Computed model cutoff of 3.002145356088898 Angstroms Computed isolated atomic energy of 0.0 eV for species He ============================================================================== ============================================================================== 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: Attempted to evaluate energy at a = 0.2999999999999994 Angstroms and c = 0.4898979485566346 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.125 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 = 1.125 Angstroms Exception message: Attempted to evaluate energy at a = -0.11250000000000293 Angstroms and c = -0.18371173070874314 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.25 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 = 1.25 Angstroms Exception message: Attempted to evaluate energy at a = -0.125 Angstroms and c = -0.2041241452319315 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.375 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 = 1.375 Angstroms Exception message: Attempted to evaluate energy at a = -0.13750000000000195 Angstroms and c = -0.22453655975512785 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.5 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 = 1.5 Angstroms Exception message: Attempted to evaluate energy at a = -0.1500000000000039 Angstroms and c = -0.24494897427832418 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.625 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 = 1.625 Angstroms Exception message: Attempted to evaluate energy at a = -0.1625000000000032 Angstroms and c = -0.26536138880151616 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.75 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 = 1.75 Angstroms Exception message: Attempted to evaluate energy at a = -0.1750000000000007 Angstroms and c = -0.28577380332470526 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 1.875 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 = 1.875 Angstroms Exception message: Attempted to evaluate energy at a = -0.1875 Angstroms and c = -0.30618621784789724 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.0 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 = 2.0 Angstroms Exception message: Attempted to evaluate energy at a = -0.20000000000000195 Angstroms and c = -0.3265986323710936 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.125 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 = 2.125 Angstroms Exception message: Attempted to evaluate energy at a = -0.2125000000000039 Angstroms and c = -0.34701104689428997 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.25 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 = 2.25 Angstroms Exception message: Attempted to evaluate energy at a = -0.22500000000000586 Angstroms and c = -0.3674234614174863 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.375 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 = 2.375 Angstroms Exception message: Attempted to evaluate energy at a = -0.23749999999999805 Angstroms and c = -0.38783587594066665 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.5 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 = 2.5 Angstroms Exception message: Attempted to evaluate energy at a = -0.25 Angstroms and c = -0.408248290463863 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.625 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 = 2.625 Angstroms Exception message: Attempted to evaluate energy at a = -0.26250000000000195 Angstroms and c = -0.4286607049870594 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.75 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 = 2.75 Angstroms Exception message: Attempted to evaluate energy at a = -0.2750000000000039 Angstroms and c = -0.4490731195102557 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 2.875 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 = 2.875 Angstroms Exception message: Attempted to evaluate energy at a = -0.28750000000000586 Angstroms and c = -0.46948553403345206 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 3.0 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 = 3.1500000000000004, 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)) Failed to perform relaxation w.r.t. 'a' with c/a fixed at sqrt(8/3) and an initial guess of a = 3.125 Angstroms Exception message: Attempted to evaluate energy at a = -0.3125 Angstroms and c = -0.5103103630798288 Angstroms; the model cutoff was estimated to be 3.002145356088898 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 = 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