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Debug/src/kernels/cl_propagators.c 19.6 KB
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/*
 * cl_propagators.c
 *
 *  Created on: 09/09/2019
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 *      Author: Pedro
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 */
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#ifndef __OPENCL_VERSION__
#include <stdbool.h>
#include <sys/types.h>

#include "cl_propagators.h"
#include "cl_aux_functions.h"
#include "../utils/cl_syntax.h"

#include "../constraints/all_different.h"
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#include "../constraints/array_bool_and.h"
#include "../constraints/array_bool_element.h"
#include "../constraints/array_bool_or.h"
#include "../constraints/array_bool_xor.h"
#include "../constraints/array_int_element.h"
#include "../constraints/array_var_int_element.h"
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#include "../constraints/at_least.h"
#include "../constraints/at_most.h"
#include "../constraints/at_most_one.h"
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#include "../constraints/bool_and.h"
#include "../constraints/bool_clause.h"
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#include "../constraints/bool_eq.h"
#include "../constraints/bool_le.h"
#include "../constraints/bool_lin_eq.h"
#include "../constraints/bool_lin_le.h"
#include "../constraints/bool_lt.h"
#include "../constraints/bool_not.h"
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#include "../constraints/bool_or.h"
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#include "../constraints/bool_xor.h"
#include "../constraints/bool2int.h"
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#include "../constraints/element.h"
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#include "../constraints/int_eq.h"
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#include "../constraints/exactly.h"
#include "../constraints/exactly_var.h"
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#include "../constraints/int_div.h"
#include "../constraints/int_eq_c.h"
#include "../constraints/int_le.h"
#include "../constraints/int_lin_eq.h"
#include "../constraints/int_lin_le.h"
#include "../constraints/int_lin_ne.h"
#include "../constraints/int_lin_var.h"
#include "../constraints/int_lt.h"
#include "../constraints/int_max.h"
#include "../constraints/int_min.h"
#include "../constraints/int_mod.h"
#include "../constraints/int_ne.h"
#include "../constraints/int_plus.h"
#include "../constraints/int_times.h"
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#include "../constraints/maximize.h"
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#include "../constraints/minimize.h"
#include "../constraints/minus_eq.h"
#include "../constraints/minus_ne.h"
#include "../constraints/sum.h"
#include "../constraints/sum_prod.h"
#include "../constraints/sum_var.h"
#include "../constraints/var_eq_minus.h"
#include "../constraints/var_eq_minus_abs.h"
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#else
#include "../constraints/all_different.c"
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#include "../constraints/array_bool_and.c"
#include "../constraints/array_bool_element.c"
#include "../constraints/array_bool_or.c"
#include "../constraints/array_bool_xor.c"
#include "../constraints/array_int_element.c"
#include "../constraints/array_var_int_element.c"
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#include "../constraints/at_least.c"
#include "../constraints/at_most.c"
#include "../constraints/at_most_one.c"
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#include "../constraints/bool_and.c"
#include "../constraints/bool_clause.c"
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#include "../constraints/bool_eq.c"
#include "../constraints/bool_le.c"
#include "../constraints/bool_lin_eq.c"
#include "../constraints/bool_lin_le.c"
#include "../constraints/bool_lt.c"
#include "../constraints/bool_not.c"
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#include "../constraints/bool_or.c"
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#include "../constraints/bool_xor.c"
#include "../constraints/bool2int.c"
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#include "../constraints/element.c"
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#include "../constraints/int_eq.c"
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#include "../constraints/exactly.c"
#include "../constraints/exactly_var.c"
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#include "../constraints/int_div.c"
#include "../constraints/int_eq_c.c"
#include "../constraints/int_le.c"
#include "../constraints/int_lin_eq.c"
#include "../constraints/int_lin_le.c"
#include "../constraints/int_lin_ne.c"
#include "../constraints/int_lin_var.c"
#include "../constraints/int_lt.c"
#include "../constraints/int_max.c"
#include "../constraints/int_min.c"
#include "../constraints/int_mod.c"
#include "../constraints/int_ne.c"
#include "../constraints/int_plus.c"
#include "../constraints/int_times.c"
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#include "../constraints/maximize.c"
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#include "../constraints/minimize.c"
#include "../constraints/minus_eq.c"
#include "../constraints/minus_ne.c"
#include "../constraints/sum.c"
#include "../constraints/sum_prod.c"
#include "../constraints/sum_var.c"
#include "../constraints/var_eq_minus.c"
#include "../constraints/var_eq_minus_abs.c"
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#endif

#include "../config.h"
#include "../domains.h"
#include "cl_constraints.h"
#include "cl_variables.h"
#include "cl_ttl.h"

#if CL_D_TYPE == CL_BITMAP
#include "cl_bitmaps.h"
#elif CL_D_TYPE == CL_INTERVAL
#include  "cl_intervals.h"
#endif

/*
 * Propagate the domain of the variable with the ID prop_v_id through all the other variables on each constraint that constrain prop_v_id
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 * vs - CSP variables
 * cs - CSP constraints
 * cs_per_v_idx - vector with all the constraints ID that constrain each variable, per variable ID order
 * vs_per_c_idx - vector with all constrained variables ID per constraint, per constraint ID order
 * c_consts - vector with all the constant values of a CSP
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 * val_to_opt_g - value to optimize
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 * nodes_fail - counter for all the failed nodes
 * nodes_expl - counter for all the explored nodes
 * pruning - counter for all the propagations that prunned values
 * props_ok - counter for all the succeeded propagations
 * vs_prop_ - all CSP variables with current step values
 * prop_v_id - variable ID to propagate
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 * vs_id_to_prop_ - list of variables marked for propagation
 * props_count - count each time any propagator was called
 * prop_ok - true if all the constraints were respected
 * terms_mem - generic memory used by some propagators to store auxiliary values
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 */
CUDA_FUNC void propagate(
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CL_VS_MEM VARS *vs, CL_CS_MEM cl_constr *cs, CL_INTS_MEM int *cs_per_v_idx, CL_INTS_MEM int *vs_per_c_idx,
#if CS_AT_LEAST == 1 || CS_AT_MOST == 1 || CS_AT_MOST_ONE == 1 || CS_EXACTLY == 1 || CS_INT_LIN_EQ == 1 || CS_INT_LIN_LE == 1 || CS_INT_LIN_NE == 1 || CS_INT_LIN_VAR == 1 || CS_ARRAY_INT_ELEMENT == 1 || CS_BOOL_LIN_EQ == 1 || CS_BOOL_LIN_LE == 1
		CL_INTS_MEM int *c_consts,
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#endif
#if (CS_MAXIMIZE == 1 || CS_MINIMIZE == 1) && CL_WORK == CL_OPT
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		__global unsigned int *val_to_opt_g,
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#endif
#if CL_STATS == 1
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		__global unsigned long *nodes_fail, __global unsigned long *nodes_expl, __global unsigned long *pruning, __global unsigned long *props_ok,
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#endif
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		CL_MEMORY VARS_PROP *vs_prop_, unsigned int prop_v_id, CL_MEMORY unsigned short *vs_id_to_prop_ TTL_CTR
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#if CL_N_DEVS > 1
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		, unsigned long *props_count
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#endif
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		CS_IGNORE_FUNC, bool *prop_ok, __global int *terms_mem) {
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	CL_CS_MEM cl_constr *current_cs;	// current constraint
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	int i;

	*prop_ok = 1;

#if CL_CHECK_ERRORS
	int l;
	for (l = 0; l < CL_N_VS; l++) {

		bool empty;
#if CL_N_WORDS == 1
		empty = (vs_prop_[l].prop_d == 0);
#else
		int m;
		empty = 1;
		for (m = 0; m < CL_N_WORDS; m++) {
			CHECK_TTL(ttl_ctr, 115)
			if (vs_prop_[l].prop_d[m] != 0) {
				empty = 0;
				m = CL_N_WORDS;
			}
		}
#endif
		if ((*prop_ok == 1 && (empty || vs_prop_[l].n_vals == 0 || vs_prop_[l].n_vals > vs_prop_[l].max + 1)) || vs_prop_[l].min > vs_prop_[l].max || vs_prop_[l].max > CL_D_MAX) {
			printf((__constant char *)"\n###error 71\n");
		}
	}
#endif

	// for statistics
#if CL_STATS == 1
	bool propagated;
	int last_prev_vs_to_prop;
#endif

#if CL_CHECK_ERRORS
	if (prop_v_id > CL_N_VS) {
		printf((__constant char *)"\n###error 48\n");
	}
#endif

	// iterates the constraints that constrain the variable to propagate
	for (i = 0; i < vs[prop_v_id].n_cs; i++) {
		CHECK_TTL(ttl_ctr, 28)
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		current_cs = &cs[cs_per_v_idx[convert_uint (vs[prop_v_id].c_idx) + convert_uint (i)]];
		unsigned int kind = convert_uint (current_cs->kind);
		CL_INTS_MEM int *vs_per_c_idx_ = &vs_per_c_idx[current_cs->v_idx];
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#if CL_CHECK_ERRORS
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		if (cs_per_v_idx[vs[prop_v_id].c_idx + convert_uint(i)] > CL_N_CS) {
			printf((__constant char *)"\n###error 49\n");
		}
		if (kind > 47) {
			printf((__constant char *)"\n###error 50\n");
		}
		if (current_cs->v_idx > CL_N_VS_CS) {
			printf((__constant char *)"\n###error 52\n");
		}
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#endif
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#if CS_AT_LEAST == 1 || CS_AT_MOST == 1 || CS_AT_MOST_ONE == 1 || CS_EXACTLY == 1 || CS_INT_LIN_EQ == 1 || CS_INT_LIN_LE == 1 || CS_INT_LIN_NE == 1 || CS_INT_LIN_VAR == 1 || CS_ARRAY_INT_ELEMENT == 1 || CS_BOOL_LIN_EQ == 1 || CS_BOOL_LIN_LE == 1
		CL_INTS_MEM int *c_consts_ = &c_consts[current_cs->const_idx];
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#if CL_CHECK_ERRORS
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		if (current_cs->v_idx > CL_N_CS_VS) {
			printf((__constant char *)"\n###error 53\n");
		}
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#endif
#endif

#if CL_N_DEVS > 1
		(*props_count)++;
#endif

#if CL_STATS == 1
		last_prev_vs_to_prop = vs_id_to_prop_[1];
		propagated = false;
#endif

#if CL_CS_IGNORE
		if (cs_ignore[current_cs->c_id] == 0) {
#endif
			switch (kind) {

#if CS_ALL_DIFFERENT == 1
			case ALL_DIFFERENT:
				all_different_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL TTL_CTR_V);
				break;
#endif
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#if CS_ARRAY_BOOL_AND == 1
			case ARRAY_BOOL_AND:
				array_bool_and_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_ARRAY_BOOL_ELEMENT == 1
			case ARRAY_BOOL_ELEMENT:
				array_bool_element_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_ARRAY_BOOL_OR == 1
			case ARRAY_BOOL_OR:
				array_bool_or_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_ARRAY_BOOL_XOR == 1
			case ARRAY_BOOL_XOR:
				array_bool_xor_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_ARRAY_INT_ELEMENT == 1
			case ARRAY_INT_ELEMENT:
				array_int_element_propagate(vs_per_c_idx_, c_consts_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_ARRAY_VAR_INT_ELEMENT == 1
			case ARRAY_VAR_INT_ELEMENT:
				array_var_int_element_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_AT_LEAST == 1
			case AT_LEAST:
				at_least_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_AT_MOST == 1
			case AT_MOST:
				at_most_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_AT_MOST_ONE == 1
			case AT_MOST_ONE:
				at_most_one_propagate(vs_per_c_idx_, c_consts_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL TTL_CTR_V);
				break;
#endif
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#if CS_BOOL_AND == 1
			case BOOL_AND:
				bool_and_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_CLAUSE == 1
			case BOOL_CLAUSE:
				bool_clause_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_BOOL_EQ == 1
			case BOOL_EQ:
				bool_eq_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_LE == 1
			case BOOL_LE:
				bool_le_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_LIN_EQ == 1
			case BOOL_LIN_EQ:
				bool_lin_eq_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_LIN_LE == 1
			case BOOL_LIN_LE:
				bool_lin_le_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_LT == 1
			case BOOL_LT:
				bool_lt_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL_NOT == 1
			case BOOL_NOT:
				bool_not_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_BOOL_OR == 1
			case BOOL_OR:
				bool_or_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_BOOL_XOR == 1
			case BOOL_XOR:
				bool_xor_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_BOOL2INT == 1
			case BOOL2INT:
				bool2int_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_ELEMENT == 1
			case ELEMENT:
				element_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif
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#if CS_EXACTLY == 1
			case EXACTLY:
				exactly_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_EXACTLY_VAR == 1
			case EXACTLY_VAR:
				exactly_var_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_DIV == 1
			case INT_DIV:
				int_div_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_EQ == 1
			case INT_EQ:
				int_eq_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_EQ_C == 1
			case INT_EQ_C:
				int_eq_c_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LE == 1
			case INT_LE:
				int_le_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LIN_EQ == 1
			case INT_LIN_EQ:
				int_lin_eq_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LIN_LE == 1
			case INT_LIN_LE:
				int_lin_le_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LIN_NE == 1
			case INT_LIN_NE:
				int_lin_ne_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LIN_VAR == 1
			case INT_LIN_VAR:
				int_lin_var_propagate(vs_per_c_idx_, c_consts_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL
				CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_LT == 1
			case INT_LT:
				int_lt_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_MAX_ == 1
			case INT_MAX_:
				int_max_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_MIN_ == 1
			case INT_MIN_:
				int_min_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_MOD == 1
			case INT_MOD:
				int_mod_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_INT_NE == 1
			case INT_NE:
				int_ne_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif
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#if CS_INT_PLUS == 1
			case INT_PLUS:
				int_plus_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_INT_TIMES == 1
			case INT_TIMES:
				int_times_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_MAXIMIZE == 1 && CL_WORK == CL_OPT
			case MAXIMIZE:
				maximize_propagate(vs_prop_, current_cs, vs_id_to_prop_, val_to_opt_g, prop_ok PROPAGATED_CALL TTL_CTR_V);
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				break;
#endif

#if CS_MINIMIZE == 1 && CL_WORK == CL_OPT
			case MINIMIZE:
				minimize_propagate(vs_prop_, current_cs, vs_id_to_prop_, val_to_opt_g, prop_ok PROPAGATED_CALL TTL_CTR_V);
				break;
#endif

#if CS_MINUS_EQ == 1
			case MINUS_EQ:
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				minus_eq_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif

#if CS_MINUS_NE == 1
			case MINUS_NE:
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				minus_ne_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif

#if CS_SUM == 1
			case SUM:
				sum_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_SUM_PROD == 1
			case SUM_PROD:
				sum_prod_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_SUM_VAR == 1
			case SUM_VAR:
				sum_var_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok, terms_mem PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
				break;
#endif

#if CS_VAR_EQ_MINUS == 1
			case VAR_EQ_MINUS:
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				var_eq_minus_propagate(vs_per_c_idx_, vs_prop_, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL CS_IGNORE_CALL TTL_CTR_V);
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				break;
#endif

#if CS_VAR_EQ_MINUS_ABS == 1
			case VAR_EQ_MINUS_ABS:
				var_eq_minus_abs_propagate(vs_per_c_idx_, vs_prop_, prop_v_id, current_cs, vs_id_to_prop_, prop_ok PROPAGATED_CALL TTL_CTR_V);
				break;
#endif
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			default:
				*prop_ok = 0;

#if CL_CHECK_ERRORS
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				printf((__constant char *)"\n###error 65 contraint type %u not in switch...\n", kind);
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#endif
				break;
			}

#if CL_STATS == 1
			if (propagated) {
				if (*prop_ok == 0) {
					(*nodes_fail)++;
					(*nodes_expl)++;

				} else {
					(*props_ok)++;

					if (last_prev_vs_to_prop != vs_id_to_prop_[1]) {
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						(*pruning) += convert_ulong (abs(vs_id_to_prop_[1] - last_prev_vs_to_prop));
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					}
				}
			}
#endif
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			if (*prop_ok == 0) {
				i = vs[prop_v_id].n_cs;
			}

			// check if there is any variable marked for being propagated, but not listed in the list of variables to propagate
#if CL_CHECK_ERRORS
			int k;
			for (l = 0; l < CL_N_VS; l++) {

				bool empty;
#if CL_N_WORDS == 1
				empty = (vs_prop_[l].prop_d == 0);
#else
				int m;
				empty = 1;
				for (m = 0; m < CL_N_WORDS; m++) {
					CHECK_TTL(ttl_ctr, 115)
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							if (vs_prop_[l].prop_d[m] != 0) {
								empty = 0;
								m = CL_N_WORDS;
							}
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				}
#endif
				if ((*prop_ok == 1 && (empty || vs_prop_[l].n_vals == 0 || vs_prop_[l].n_vals > vs_prop_[l].max + 1)) || vs_prop_[l].min > vs_prop_[l].max || vs_prop_[l].max > CL_D_MAX) {
					printf((__constant char *)"\n###error 70\n");
					printf((__constant char *)"constraint=%d, prop_ok=%d, empty=%d, vs_prop_[l].n_vals=%u, vs_prop_[l].min=%u, vs_prop_[l].max=%u\n",
							kind, *prop_ok, empty, vs_prop_[l].n_vals, vs_prop_[l].min, vs_prop_[l].max);

					*prop_ok = 0;
					i = vs[prop_v_id].n_cs;
				}

				if (vs_prop_[l].to_prop == 1) {

					if (vs_id_to_prop_[0] <= vs_id_to_prop_[1]) {
						for (k = vs_id_to_prop_[0]; k < vs_id_to_prop_[1]; k++) {
							CHECK_TTL(ttl_ctr, 154)
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									if (vs_id_to_prop_[k] == l) {
										break;
									}
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						}

						if (k == vs_id_to_prop_[1]) {
							printf((__constant char *)"\n###error 66\n");
						}
					} else {
						for (k = vs_id_to_prop_[0]; k < vs_id_to_prop_[CL_N_VS + 2]; k++) {
							CHECK_TTL(ttl_ctr, 155)
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									if (k < CL_D_MAX + 2 && vs_id_to_prop_[k] == l) {
										break;
									}
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						}

						if (k == vs_id_to_prop_[CL_N_VS + 2]) {

							for (k = 2; k < vs_id_to_prop_[1]; k++) {
								CHECK_TTL(ttl_ctr, 156)
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										if (vs_id_to_prop_[k] == l) {
											break;
										}
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							}
						}
					}
				}
			}
#endif

#if CL_CS_IGNORE
		}
#endif
	}
}