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+/**CFile****************************************************************
+
+ FileName [msatSolverIo.c]
+
+ PackageName [A C version of SAT solver MINISAT, originally developed
+ in C++ by Niklas Een and Niklas Sorensson, Chalmers University of
+ Technology, Sweden: http://www.cs.chalmers.se/~een/Satzoo.]
+
+ Synopsis [Input/output of CNFs.]
+
+ Author [Alan Mishchenko <alanmi@eecs.berkeley.edu>]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - January 1, 2004.]
+
+ Revision [$Id: msatSolverIo.c,v 1.0 2004/01/01 1:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "msatInt.h"
+
+////////////////////////////////////////////////////////////////////////
+/// DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+static char * Msat_TimeStamp();
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DEFITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+ Synopsis []
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Msat_SolverPrintAssignment( Msat_Solver_t * p )
+{
+ int i;
+ printf( "Current assignments are: \n" );
+ for ( i = 0; i < p->nVars; i++ )
+ printf( "%d", i % 10 );
+ printf( "\n" );
+ for ( i = 0; i < p->nVars; i++ )
+ if ( p->pAssigns[i] == MSAT_VAR_UNASSIGNED )
+ printf( "." );
+ else
+ {
+ assert( i == MSAT_LIT2VAR(p->pAssigns[i]) );
+ if ( MSAT_LITSIGN(p->pAssigns[i]) )
+ printf( "0" );
+ else
+ printf( "1" );
+ }
+ printf( "\n" );
+}
+
+/**Function*************************************************************
+
+ Synopsis []
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Msat_SolverPrintClauses( Msat_Solver_t * p )
+{
+ Msat_Clause_t ** pClauses;
+ int nClauses, i;
+
+ printf( "Original clauses: \n" );
+ nClauses = Msat_ClauseVecReadSize( p->vClauses );
+ pClauses = Msat_ClauseVecReadArray( p->vClauses );
+ for ( i = 0; i < nClauses; i++ )
+ {
+ printf( "%3d: ", i );
+ Msat_ClausePrint( pClauses[i] );
+ }
+
+ printf( "Learned clauses: \n" );
+ nClauses = Msat_ClauseVecReadSize( p->vLearned );
+ pClauses = Msat_ClauseVecReadArray( p->vLearned );
+ for ( i = 0; i < nClauses; i++ )
+ {
+ printf( "%3d: ", i );
+ Msat_ClausePrint( pClauses[i] );
+ }
+
+ printf( "Variable activity: \n" );
+ for ( i = 0; i < p->nVars; i++ )
+ printf( "%3d : %.4f\n", i, p->pdActivity[i] );
+}
+
+/**Function*************************************************************
+
+ Synopsis []
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Msat_SolverWriteDimacs( Msat_Solver_t * p, char * pFileName )
+{
+ FILE * pFile;
+ Msat_Clause_t ** pClauses;
+ int nClauses, i;
+
+ nClauses = Msat_ClauseVecReadSize(p->vClauses) + Msat_ClauseVecReadSize(p->vLearned);
+ for ( i = 0; i < p->nVars; i++ )
+ nClauses += ( p->pLevel[i] == 0 );
+
+ pFile = fopen( pFileName, "wb" );
+ fprintf( pFile, "c Produced by Msat_SolverWriteDimacs() on %s\n", Msat_TimeStamp() );
+ fprintf( pFile, "p cnf %d %d\n", p->nVars, nClauses );
+
+ nClauses = Msat_ClauseVecReadSize( p->vClauses );
+ pClauses = Msat_ClauseVecReadArray( p->vClauses );
+ for ( i = 0; i < nClauses; i++ )
+ Msat_ClauseWriteDimacs( pFile, pClauses[i], 1 );
+
+ nClauses = Msat_ClauseVecReadSize( p->vLearned );
+ pClauses = Msat_ClauseVecReadArray( p->vLearned );
+ for ( i = 0; i < nClauses; i++ )
+ Msat_ClauseWriteDimacs( pFile, pClauses[i], 1 );
+
+ // write zero-level assertions
+ for ( i = 0; i < p->nVars; i++ )
+ if ( p->pLevel[i] == 0 )
+ fprintf( pFile, "%s%d 0\n", ((p->pAssigns[i]&1)? "-": ""), i + 1 );
+
+ fprintf( pFile, "\n" );
+ fclose( pFile );
+}
+
+
+/**Function*************************************************************
+
+ Synopsis [Returns the time stamp.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+char * Msat_TimeStamp()
+{
+ static char Buffer[100];
+ time_t ltime;
+ char * TimeStamp;
+ // get the current time
+ time( &ltime );
+ TimeStamp = asctime( localtime( &ltime ) );
+ TimeStamp[ strlen(TimeStamp) - 1 ] = 0;
+ strcpy( Buffer, TimeStamp );
+ return Buffer;
+}
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+