Jip J. Dekker
f2a1c4e389
git-subtree-dir: software/mza git-subtree-split: f970a59b177c13ca3dd8aaef8cc6681d83b7e813
30 lines
1.2 KiB
MiniZinc
30 lines
1.2 KiB
MiniZinc
% This file contains redefinitions of standard builtins for version 2.0.2
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% that can be overridden by solvers.
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predicate symmetry_breaking_constraint(var bool: b) =
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(b) %:: MIP_lazy %:: MIP_cut %% MIP_cut wrong in CPLEX 12.6.3
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%% Symm breaking as lazy is 1% better in Gurobi 6.5.2 on the Challenges 2012-2015
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%% But caused a bug in 7.5.1 - switched off
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%% true %% TO omit all symmetry_breaking_constraint's
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;
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%% Make sure no feasible solutions are cut off:
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predicate redundant_constraint(var bool: b) =
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(b) %:: MIP_cut
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% true %% To omit all redundant_constraint's
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;
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%% Linearized element: just call without shifting
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predicate array_var_bool_element_nonshifted(var int: idx, array[int] of var bool: x, var bool: c) =
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array_var_bool_element(idx,x,c);
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predicate array_var_int_element_nonshifted(var int: idx, array[int] of var int: x, var int: c) =
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array_var_int_element(idx,x,c);
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predicate array_var_float_element_nonshifted(var int: idx, array[int] of var float: x, var float: c) =
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array_var_float_element(idx,x,c);
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predicate array_var_set_element_nonshifted(var int: idx, array[int] of var set of int: x, var set of int: c) =
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array_var_set_element(idx,x,c);
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