zchaff_wrapper.wrp

这是一种很好的SAT解析器。通过它

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#include "zchaff_solver.h"
#include "zchaff_clsgen.h"
#include <fstream>

#ifndef SAT_Manager
#define SAT_Manager void *
#endif

//#define GEN_CALL_TRACE

#ifdef GEN_CALL_TRACE
#define TRACE(x)	x
ofstream trace_os("sat_call_trace");
#else
#define TRACE(x)	
#endif

/*=====================================================================
Following are wrapper functions for C/C++ callers. 

 ====================================================================*/

EXTERN SAT_Manager SAT_InitManager(void)
{
    CSolver * solver = new CSolver;
    TRACE(trace_os << "SAT_InitManager\t" << solver << endl;);
    return (SAT_Manager)solver;
}

EXTERN char * SAT_Version(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_Version\t" << mng << "\t" << solver->version() << endl;);
    return solver->version();
}

EXTERN void SAT_SetNumVariables(SAT_Manager mng, 
				    int n_var)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_SetNumVariables\t" << mng << " " << n_var << endl; );
    solver->set_variable_number(n_var);
}

EXTERN void SAT_ReleaseManager(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_ReleaseManager\t" << mng << endl;);
    delete solver;
}

EXTERN int SAT_AddVariable	(SAT_Manager 	mng)
{
    CSolver * solver = (CSolver*) mng;
    int vid = solver->add_variable();
    TRACE(trace_os << "SAT_AddVariable\t" << mng << "\t" << vid <<endl;);
    return vid;
}

EXTERN void  SAT_EnableVarBranch(SAT_Manager mng, int vid)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_EnableVarBranch\t" << mng << " " << vid << endl;);
    solver->mark_var_branchable(vid);
}

EXTERN void SAT_DisableVarBranch(SAT_Manager mng, int vid)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_DisableVarBranch\t" << mng << " " << vid << endl;);
    solver->mark_var_unbranchable(vid);
}

EXTERN void SAT_SetTimeLimit	(SAT_Manager 	mng ,  
				 float 		runtime)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_SetTimeLimit\t" << mng << " " << runtime << endl;);
    solver->set_time_limit(runtime);
}

EXTERN void SAT_SetMemLimit	(SAT_Manager 	mng, 
				 int 		mem_limit)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_SetMemLimit\t" << mng << " " << mem_limit << endl;);
    solver->set_mem_limit(mem_limit);
}

EXTERN void SAT_AddClause	(SAT_Manager 	mng, 
				 int * 		clause_lits,
				 int 		num_lits, 
				 int		gid = 0)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_AddClause\t" << mng << " ";
	  for (int i=0; i< num_lits; ++i) {  trace_os << clause_lits[i] << " "; }
	  trace_os << num_lits << " " << gid << endl; );
    solver->add_orig_clause(clause_lits, num_lits, gid);
}

EXTERN void SAT_DeleteClauseGroup (SAT_Manager mng,
			    int		gid)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_DeleteClauseGroup\t" << mng << " " << gid << endl;);
    solver->delete_clause_group(gid);
}

EXTERN void SAT_Reset	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;
    TRACE(trace_os << "SAT_Reset\t" << mng << endl;);
    solver->reset();
}

EXTERN int SAT_MergeClauseGroup	(SAT_Manager mng,
				 int	gid1,
				 int 	gid2)
{
    CSolver * solver = (CSolver*) mng;
    int g = solver->merge_clause_group(gid1, gid2); 
    TRACE( trace_os << "SAT_MergeClauseGroup\t" << mng 
	   << " " << gid1 << " " << gid2 << "\t" << g;);
    return g;
}

EXTERN int SAT_AllocClauseGroupID (SAT_Manager mng) 
{
    CSolver * solver = (CSolver*) mng;
    int gid = solver->alloc_gid();
    TRACE ( trace_os << "SAT_AllocClauseGroupID\t" << mng << "\t" << gid << endl;);
    return gid;
}

EXTERN int SAT_GetGlobalGroupID (SAT_Manager mng) 
{
    TRACE ( trace_os << "SAT_GetGlobalGroupID\t" << mng << "\t" << 0 << endl;);
    return 0;
}

EXTERN int SAT_GetVolatileGroupID (SAT_Manager mng) 
{
    TRACE ( trace_os << "SAT_GetVolatileGroupID\t" << mng << "\t" << -1 << endl;);
    return -1;
}

EXTERN int SAT_Solve 	(SAT_Manager 	mng)
{
    CSolver * solver = (CSolver*) mng;
    int result = solver->solve();
    TRACE ( trace_os << "SAT_Solve\t" << mng << "\t" << result << endl;);
    return result;
}

EXTERN void SAT_AddHookFun 	(SAT_Manager	mng, 
				 void(*fun)(void *),
				 int 		interval)
{
    CSolver * solver = (CSolver*) mng;	
    TRACE ( trace_os << "SAT_AddHookFun\t" << mng 
	    << " " << fun << " " << interval << endl;);
    solver->add_hook(fun, interval);
}	

EXTERN void SAT_MakeDecision	(SAT_Manager	mng,
				int		vid,
				int		sign)
{
    CSolver * solver = (CSolver*) mng;	
    TRACE ( trace_os << "SAT_MakeDecision\t" << mng 
	    << " " << vid << " " << sign << endl;);
    solver->make_decision(vid+vid+sign);
}



EXTERN void SAT_SetRandomness	(SAT_Manager	mng,
				 int 		n)
{
    CSolver * solver = (CSolver*) mng;	
    TRACE ( trace_os << "SAT_SetRandomness\t" << mng<< " " << n << endl;);
    solver->set_randomness(n);
}

EXTERN void SAT_SetRandSeed	(SAT_Manager	mng,
				 int		seed)
{
    CSolver * solver = (CSolver*) mng;	
    TRACE ( trace_os << "SAT_SetRandSeed\t" << mng<< " " << seed << endl;);
    solver->set_random_seed(seed);
}

EXTERN int SAT_GetVarAsgnment	(SAT_Manager	mng,
					 int 		v_idx)
{
    CSolver * solver = (CSolver*) mng;
    assert (v_idx > 0 && v_idx < (int) solver->variables().size());
    int v = solver->variable(v_idx).value();	
    TRACE ( trace_os << "SAT_GetVarAsgnment\t" << mng<< " " 
	    << v_idx << "\t" << v << endl;);
    return v; 
}	

EXTERN int SAT_EstimateMemUsage(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;
    int usage = solver->estimate_mem_usage();
    TRACE (trace_os << "SAT_EstimateMemUsage\t" << mng << "\t" << usage << endl;);
    return usage;
}

EXTERN float SAT_GetElapsedCPUTime(SAT_Manager	mng)
{
    CSolver * solver = (CSolver*) mng;	
    float time = solver->elapsed_cpu_time();
    TRACE (trace_os << "SAT_GetElapsedCPUTime\t" << mng << "\t" << time << endl;);
    return time;
}

EXTERN float SAT_GetCurrentCPUTime(SAT_Manager	mng)
{
    CSolver * solver = (CSolver*) mng;	
    float time = get_cpu_time()/1000.0;
    TRACE (trace_os << "SAT_GetCurrentCPUTime\t" << mng << "\t" << time << endl;);
    return time;
}

EXTERN float SAT_GetCPUTime	(SAT_Manager	mng)
{
    CSolver * solver = (CSolver*) mng;	
    float time = solver->cpu_run_time();
    TRACE (trace_os << "SAT_GetCPUTime\t" << mng << "\t" << time << endl;);
    return time;
}

EXTERN int SAT_NumLiterals	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->num_literals();
    TRACE (trace_os << "SAT_NumLiterals\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_NumClauses	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->num_clauses();
    TRACE (trace_os << "SAT_NumClauses\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_NumVariables	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->num_variables();
    TRACE (trace_os << "SAT_NumVariables\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_InitNumLiterals(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->init_num_literals();
    TRACE (trace_os << "SAT_InitNumLiterals\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_InitNumClauses(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->init_num_clauses();
    TRACE (trace_os << "SAT_InitNumClauses\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN long64 SAT_NumAddedLiterals(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    long64 n = solver->num_added_literals();
    TRACE (trace_os << "SAT_NumAddedLiterals\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_NumAddedClauses	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int  n =  solver->num_added_clauses();
    TRACE (trace_os << "SAT_NumAddedClauses\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_NumDeletedClauses	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->num_deleted_clauses();
    TRACE (trace_os << "SAT_NumDeletedClauses\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN int SAT_NumDelOrigCls	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    int n = solver->num_del_orig_cls();
    TRACE (trace_os << "SAT_NumDeletedOriginalClauses\t" << mng << "\t" << n << endl;);
    return n;
}

EXTERN long64 SAT_NumDeletedLiterals	(SAT_Manager mng)
{
    CSolver * solver = (CSolver*) mng;	
    long64 n = solver->num_deleted_literals();
    TRACE (trace_os << "SAT_NumDeletedLiterals\t" << mng << "\t" << n << endl;);
    return n;