/******************************************************************************\ * * * SimpleCUDD library (www.cs.kuleuven.be/~theo/tools/simplecudd.html) * * SimpleCUDD was developed at Katholieke Universiteit Leuven(www.kuleuven.be) * * * * Copyright Katholieke Universiteit Leuven 2008 * * * * Author: Theofrastos Mantadelis * * File: simplecudd.c * * * ******************************************************************************** * * * Artistic License 2.0 * * * * Copyright (c) 2000-2006, The Perl Foundation. * * * * Everyone is permitted to copy and distribute verbatim copies of this license * * document, but changing it is not allowed. * * * * Preamble * * * * This license establishes the terms under which a given free software Package * * may be copied, modified, distributed, and/or redistributed. 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If * * you institute patent litigation (including a cross-claim or counterclaim) * * against any party alleging that the Package constitutes direct or * * contributory patent infringement, then this Artistic License to you shall * * terminate on the date that such litigation is filed. * * * * (14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER * * AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE * * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR * * NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. * * UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE * * FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN * * ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF * * SUCH DAMAGE. * * * * The End * * * \******************************************************************************/ #include "simplecudd.h" /* BDD manager initialization */ int _debug = 0; int _RapidLoad = 0; int _maxbufsize = 0; DdManager* simpleBDDinit(int varcnt) { DdManager *temp; temp = Cudd_Init(varcnt, 0, CUDD_UNIQUE_SLOTS, CUDD_CACHE_SLOTS, 0); Cudd_AutodynEnable(temp, CUDD_REORDER_GROUP_SIFT); Cudd_SetMaxCacheHard(temp, 1024*1024*1024); Cudd_SetLooseUpTo(temp, 1024*1024*512); if (_debug) Cudd_EnableReorderingReporting(temp); return temp; } /* BDD tree travesrsing */ DdNode* HighNodeOf(DdManager *manager, DdNode *node) { DdNode *tmp; if (IsHigh(manager, node)) return HIGH(manager); if (IsLow(manager, node)) return LOW(manager); tmp = Cudd_Regular(node); if (Cudd_IsComplement(node)) return NOT(tmp->type.kids.T); return tmp->type.kids.T; } DdNode* LowNodeOf(DdManager *manager, DdNode *node) { DdNode *tmp; if (IsHigh(manager, node)) return HIGH(manager); if (IsLow(manager, node)) return LOW(manager); tmp = Cudd_Regular(node); if (Cudd_IsComplement(node)) return NOT(tmp->type.kids.E); return tmp->type.kids.E; } /* BDD tree generation */ DdNode* D_BDDAnd(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddAnd(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } DdNode* D_BDDNand(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddNand(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } DdNode* D_BDDOr(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddOr(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } DdNode* D_BDDNor(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddNor(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } DdNode* D_BDDXor(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddXor(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } DdNode* D_BDDXnor(DdManager *manager, DdNode *bdd1, DdNode *bdd2) { DdNode *tmp; Cudd_Ref(bdd1); tmp = Cudd_bddXnor(manager, bdd1, bdd2); Cudd_Ref(tmp); //Cudd_RecursiveDeref(manager, bdd2); return tmp; } /* file manipulation */ bddfileheader ReadFileHeader(char *filename) { bddfileheader temp; char *header; temp.inputfile = NULL; temp.version = 0; temp.varcnt = 0; temp.varstart = 0; temp.intercnt = 0; temp.filetype = BDDFILE_OTHER; if ((temp.inputfile = fopen(filename, "r")) == NULL) { perror(filename); temp.filetype = BDDFILE_ERROR; return temp; } // Read file header if (!feof(temp.inputfile)) { header = freadline(temp.inputfile); temp.version = CheckFileVersion(header); if (temp.version > -1) temp.filetype = (strlen(header) == 5) * BDDFILE_SCRIPT + (strlen(header) == 7) * BDDFILE_NODEDUMP; free(header); switch (temp.filetype) { case BDDFILE_SCRIPT: switch (temp.version) { case 1: fscanf(temp.inputfile, "%i\n", &temp.varcnt); fscanf(temp.inputfile, "%i\n", &temp.varstart); fscanf(temp.inputfile, "%i\n", &temp.intercnt); break; default: fclose(temp.inputfile); temp.inputfile = NULL; break; } break; case BDDFILE_NODEDUMP: switch (temp.version) { case 1: fscanf(temp.inputfile, "%i\n", &temp.varcnt); fscanf(temp.inputfile, "%i\n", &temp.varstart); break; default: fclose(temp.inputfile); temp.inputfile = NULL; break; } break; case BDDFILE_OTHER: fclose(temp.inputfile); temp.inputfile = NULL; break; default: fclose(temp.inputfile); temp.inputfile = NULL; break; } } return temp; } int CheckFileVersion(const char *version) { if (strlen(version) < 5) return -1; if (strlen(version) == 5 && version[0] == '@' && version[1] == 'B' && version[2] == 'D' && version[3] == 'D') return atoi(version + 4); if (strlen(version) == 7 && version[0] == '@' && version[1] == 'N' && version[2] == 'O' && version[3] == 'D' && version[4] == 'E' && version[5] == 'S') return atoi(version + 6); return -1; } int simpleBDDtoDot(DdManager *manager, DdNode *bdd, char *filename) { DdNode *f[1]; int ret; FILE *fd; f[0] = Cudd_BddToAdd(manager, bdd); fd = fopen(filename, "w"); if (fd == NULL) { perror(filename); return -1; } ret = Cudd_DumpDot(manager, 1, f, NULL, NULL, fd); fclose(fd); return ret; } int simpleNamedBDDtoDot(DdManager *manager, namedvars varmap, DdNode *bdd, char *filename) { DdNode *f[1]; int ret; FILE *fd; f[0] = Cudd_BddToAdd(manager, bdd); fd = fopen(filename, "w"); if (fd == NULL) { perror(filename); return -1; } ret = Cudd_DumpDot(manager, 1, f, varmap.vars, NULL, fd); fclose(fd); return ret; } int SaveNodeDump(DdManager *manager, namedvars varmap, DdNode *bdd, char *filename) { hisqueue *Nodes; FILE *outputfile; int i; if ((outputfile = fopen(filename, "w")) == NULL) { perror(filename); return -1; } fprintf(outputfile, "%s\n%i\n%i\n", "@NODES1", varmap.varcnt, varmap.varstart); Nodes = InitHistory(varmap.varcnt); for (i = 0; i < varmap.varcnt; i++) fprintf(outputfile, "%s\t%i\n", varmap.vars[i], Cudd_ReadPerm(manager, i)); if (bdd == HIGH(manager)) fprintf(outputfile, "TRUE\t0\tTRUE\t0\tTRUE\t0\n"); else if (bdd == LOW(manager)) fprintf(outputfile, "FALSE\t0\tFALSE\t0\tFALSE\t0\n"); else SaveExpand(manager, varmap, Nodes, bdd, outputfile); ReInitHistory(Nodes, varmap.varcnt); free(Nodes); fclose(outputfile); return 0; } void SaveExpand(DdManager *manager, namedvars varmap, hisqueue *Nodes, DdNode *Current, FILE *outputfile) { DdNode *h, *l; hisnode *Found; char *curnode; int inode; if (Current != HIGH(manager) && Current != LOW(manager)) { if ((Found = GetNode(Nodes, varmap.varstart, Current)) == NULL) { AddNode(Nodes, varmap.varstart, Current, 0.0, 0, NULL); Found = GetNode(Nodes, varmap.varstart, Current); } if (!(Found->ivalue)) { Found->ivalue = 1; curnode = GetNodeVarNameDisp(manager, varmap, Current); inode = GetNodeIndex(Nodes, varmap.varstart, Current); fprintf(outputfile, "%s\t%i\t", curnode, inode); h = HighNodeOf(manager, Current); if (h == HIGH(manager)) { fprintf(outputfile, "TRUE\t0\t"); } else if (h == LOW(manager)) { fprintf(outputfile, "FALSE\t0\t"); } else { if (GetNode(Nodes, varmap.varstart, h) == NULL) AddNode(Nodes, varmap.varstart, h, 0.0, 0, NULL); curnode = GetNodeVarNameDisp(manager, varmap, h); inode = GetNodeIndex(Nodes, varmap.varstart, h); fprintf(outputfile, "%s\t%i\t", curnode, inode); } l = LowNodeOf(manager, Current); if (l == HIGH(manager)) { fprintf(outputfile, "TRUE\t0\n"); } else if (l == LOW(manager)) { fprintf(outputfile, "FALSE\t0\n"); } else { if (GetNode(Nodes, varmap.varstart, l) == NULL) AddNode(Nodes, varmap.varstart, l, 0.0, 0, NULL); curnode = GetNodeVarNameDisp(manager, varmap, l); inode = GetNodeIndex(Nodes, varmap.varstart, l); fprintf(outputfile, "%s\t%i\n", curnode, inode); } SaveExpand(manager, varmap, Nodes, l, outputfile); SaveExpand(manager, varmap, Nodes, h, outputfile); } } } DdNode * LoadNodeDump(DdManager *manager, namedvars varmap, FILE *inputfile) { hisqueue *Nodes; nodeline temp; DdNode *ret; int i, pos, *perm; char *varnam; perm = (int *) malloc(sizeof(int) * varmap.varcnt); Nodes = InitHistory(varmap.varcnt); for (i = 0; i < varmap.varcnt; i++) { varnam = freadstr(inputfile, "\t"); pos = atoi(freadstr(inputfile, "\n")); AddNamedVarAt(varmap, varnam, pos); perm[pos] = pos; } temp.varname = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.nodenum); temp.truevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.truenode); temp.falsevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\n", &temp.falsenode); ret = LoadNodeRec(manager, varmap, Nodes, inputfile, temp); free(temp.varname); free(temp.truevar); free(temp.falsevar); fclose(inputfile); ReInitHistory(Nodes, varmap.varcnt); free(Nodes); Cudd_Ref(ret); Cudd_ShuffleHeap(manager, perm); for (i = 0; i < varmap.varcnt; i++) varmap.ivalue[i] = 0; return ret; } DdNode * LoadNodeRec(DdManager *manager, namedvars varmap, hisqueue *Nodes, FILE *inputfile, nodeline current) { nodeline temp; DdNode *newnode, *truenode, *falsenode; int index; newnode = GetIfExists(manager, varmap, Nodes, current.varname, current.nodenum); if (newnode != NULL) return newnode; falsenode = GetIfExists(manager, varmap, Nodes, current.falsevar, current.falsenode); if (falsenode == NULL) { temp.varname = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.nodenum); temp.truevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.truenode); temp.falsevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\n", &temp.falsenode); falsenode = LoadNodeRec(manager, varmap, Nodes, inputfile, temp); free(temp.varname); free(temp.truevar); free(temp.falsevar); } truenode = GetIfExists(manager, varmap, Nodes, current.truevar, current.truenode); if (truenode == NULL) { temp.varname = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.nodenum); temp.truevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\t", &temp.truenode); temp.falsevar = freadstr(inputfile, "\t"); fscanf(inputfile, "%i\n", &temp.falsenode); truenode = LoadNodeRec(manager, varmap, Nodes, inputfile, temp); free(temp.varname); free(temp.truevar); free(temp.falsevar); } index = GetNamedVarIndex(varmap, current.varname); if (!varmap.ivalue[index]) { varmap.ivalue[index] = 1; newnode = GetVar(manager, varmap.varstart + index); //Cudd_RecursiveDeref(manager, newnode->type.kids.T); //Cudd_RecursiveDeref(manager, newnode->type.kids.E); newnode->type.kids.T = Cudd_NotCond(truenode, Cudd_IsComplement(truenode)); newnode->type.kids.E = Cudd_NotCond(falsenode, Cudd_IsComplement(truenode)); Cudd_Ref(newnode->type.kids.T); Cudd_Ref(newnode->type.kids.E); Cudd_Ref(newnode); } else { if (_RapidLoad == 1) { newnode = cuddAllocNode(manager); if (newnode != NULL) { newnode->index = varmap.varstart + index; newnode->type.kids.T = Cudd_NotCond(truenode, Cudd_IsComplement(truenode)); newnode->type.kids.E = Cudd_NotCond(falsenode, Cudd_IsComplement(truenode)); Cudd_Ref(newnode->type.kids.T); Cudd_Ref(newnode->type.kids.E); Cudd_Ref(newnode); } } else { newnode = cuddUniqueInter(manager, varmap.varstart + index, Cudd_NotCond(truenode, Cudd_IsComplement(truenode)), Cudd_NotCond(falsenode, Cudd_IsComplement(truenode))); if (newnode != NULL) { Cudd_Ref(newnode); } else { newnode = cuddAllocNode(manager); if (newnode != NULL) { newnode->index = varmap.varstart + index; newnode->type.kids.T = Cudd_NotCond(truenode, Cudd_IsComplement(truenode)); newnode->type.kids.E = Cudd_NotCond(falsenode, Cudd_IsComplement(truenode)); Cudd_Ref(newnode->type.kids.T); Cudd_Ref(newnode->type.kids.E); Cudd_Ref(newnode); } } } } if (newnode != NULL) { Nodes[index].thenode[current.nodenum].key = Cudd_NotCond(newnode, Cudd_IsComplement(truenode)); return Cudd_NotCond(newnode, Cudd_IsComplement(truenode)); } return NULL; } DdNode * GetIfExists(DdManager *manager, namedvars varmap, hisqueue *Nodes, char *varname, int nodenum) { int index; if (strcmp(varname, "TRUE") == 0) return HIGH(manager); if (strcmp(varname, "FALSE") == 0) return LOW(manager); index = GetNamedVarIndex(varmap, varname); if (index == -1 * varmap.varcnt) { fprintf(stderr, "Error: more variables requested than initialized.\n"); exit(-1); } if ((index < 0) || (index == 0 && varmap.vars[0] == NULL)) { index = AddNamedVar(varmap, varname); } ExpandNodes(Nodes, index, nodenum); if (Nodes[index].thenode[nodenum].key != NULL) return Nodes[index].thenode[nodenum].key; return NULL; } void ExpandNodes(hisqueue *Nodes, int index, int nodenum) { int i; if (Nodes[index].cnt > nodenum) return; Nodes[index].thenode = (hisnode *) realloc(Nodes[index].thenode, (nodenum + 1) * sizeof(hisnode)); for (i = Nodes[index].cnt; i < nodenum + 1; i++) { Nodes[index].thenode[i].key = NULL; Nodes[index].thenode[i].ivalue = 0; Nodes[index].thenode[i].dvalue = 0.0; Nodes[index].thenode[i].dynvalue = NULL; } Nodes[index].cnt = nodenum + 1; } int LoadVariableData(namedvars varmap, char *filename) { FILE *data; char *dataread, buf, *varname, *dynvalue; double dvalue = 0.0; int icur = 0, maxbufsize = 10, hasvar = 0, index = -1, idat = 0, ivalue = 0; dynvalue = NULL; if ((data = fopen(filename, "r")) == NULL) { perror(filename); return -1; } dataread = (char *) malloc(sizeof(char) * maxbufsize); while(!feof(data)) { fread(&buf, 1, 1, data); if (buf == '\n') { dataread[icur] = '\0'; icur = 0; buf = ' '; if (dataread[0] == '@') { if (hasvar) { for (index = 0; index < varmap.varcnt; index++) { if (patternmatch(varname, varmap.vars[index])) { varmap.loaded[index] = 1; varmap.dvalue[index] = dvalue; varmap.ivalue[index] = ivalue; if (varmap.dynvalue[index] != NULL) { free(varmap.dynvalue[index]); varmap.dynvalue[index] = NULL; } if (dynvalue != NULL) { varmap.dynvalue[index] = (void *) malloc(sizeof(char) * (strlen(dynvalue) + 1)); strcpy(varmap.dynvalue[index], dynvalue); } } } dvalue = 0.0; ivalue = 0; if (dynvalue != NULL) { free(dynvalue); dynvalue = NULL; } free(varname); } varname = (char *) malloc(sizeof(char) * strlen(dataread)); strcpy(varname, dataread + 1); hasvar = 1; idat = 0; } else { if (hasvar >= 0) { switch(idat) { case 0: if (IsRealNumber(dataread)) dvalue = atof(dataread); else { fprintf(stderr, "Error at file: %s. Variable: %s can't have non real value: %s.\n", filename, varname, dataread); fclose(data); free(varname); free(dataread); return -2; } idat++; break; case 1: if (IsNumber(dataread)) ivalue = atoi(dataread); else { fprintf(stderr, "Error at file: %s. Variable: %s can't have non integer value: %s.\n", filename, varname, dataread); fclose(data); free(varname); free(dataread); return -2; } idat++; break; case 2: dynvalue = malloc(sizeof(char) * (strlen(dataread) + 1)); strcpy(dynvalue, dataread); break; } } } } else { dataread[icur] = buf; icur++; if (icur == _maxbufsize) { fprintf(stderr, "Error: Maximum buffer size(%i) exceeded.\n", _maxbufsize); fclose(data); free(varname); free(dataread); return -2; } while (icur > maxbufsize - 1) { maxbufsize *= 2; dataread = (char *) realloc(dataread, sizeof(char) * maxbufsize); } } } if (hasvar) { for (index = 0; index < varmap.varcnt; index++) { if (patternmatch(varname, varmap.vars[index])) { varmap.loaded[index] = 1; varmap.dvalue[index] = dvalue; varmap.ivalue[index] = ivalue; if (dynvalue != NULL) { varmap.dynvalue[index] = (void *) malloc(sizeof(char) * (strlen(dynvalue) + 1)); strcpy(varmap.dynvalue[index], dynvalue); } } } if (dynvalue != NULL) { free(dynvalue); dynvalue = NULL; } free(varname); } fclose(data); free(dataread); return 0; } /* Queue for node storing to avoid loops */ hisqueue* InitHistory(int varcnt) { int i; hisqueue *HisQueue; HisQueue = (hisqueue *) malloc(sizeof(hisqueue) * varcnt); for (i = 0; i < varcnt; i++) { HisQueue[i].thenode = NULL; HisQueue[i].cnt = 0; } return HisQueue; } void ReInitHistory(hisqueue *HisQueue, int varcnt) { int i, j; for (i = 0; i < varcnt; i++) { if (HisQueue[i].thenode != NULL) { for (j = 0; j < HisQueue[i].cnt; j++) if (HisQueue[i].thenode[j].dynvalue != NULL) free(HisQueue[i].thenode[j].dynvalue); free(HisQueue[i].thenode); HisQueue[i].thenode = NULL; } HisQueue[i].cnt = 0; } } void AddNode(hisqueue *HisQueue, int varstart, DdNode *node, double dvalue, int ivalue, void *dynvalue) { int index = GetIndex(node) - varstart; HisQueue[index].thenode = (hisnode *) realloc(HisQueue[index].thenode, (HisQueue[index].cnt + 1) * sizeof(hisnode)); HisQueue[index].thenode[HisQueue[index].cnt].key = node; HisQueue[index].thenode[HisQueue[index].cnt].dvalue = dvalue; HisQueue[index].thenode[HisQueue[index].cnt].ivalue = ivalue; HisQueue[index].thenode[HisQueue[index].cnt].dynvalue = dynvalue; HisQueue[index].cnt += 1; } hisnode* GetNode(hisqueue *HisQueue, int varstart, DdNode *node) { int i; int index = GetIndex(node) - varstart; for(i = 0; i < HisQueue[index].cnt; i++) { if (HisQueue[index].thenode[i].key == node) return &(HisQueue[index].thenode[i]); } return NULL; } int GetNodeIndex(hisqueue *HisQueue, int varstart, DdNode *node) { int i; int index = GetIndex(node) - varstart; for(i = 0; i < HisQueue[index].cnt; i++) { if (HisQueue[index].thenode[i].key == node) return i; } return -1; } /* Named variables */ namedvars InitNamedVars(int varcnt, int varstart) { namedvars temp; int i; temp.varcnt = varcnt; temp.varstart = varstart; temp.vars = (char **) malloc(sizeof(char *) * varcnt); temp.loaded = (int *) malloc(sizeof(int) * varcnt); temp.dvalue = (double *) malloc(sizeof(double) * varcnt); temp.ivalue = (int *) malloc(sizeof(int) * varcnt); temp.dynvalue = (void **) malloc(sizeof(void *) * varcnt); for (i = 0; i < varcnt; i++) { temp.vars[i] = NULL; temp.loaded[i] = 0; temp.dvalue[i] = 0.0; temp.ivalue[i] = 0; temp.dynvalue[i] = NULL; } return temp; } void EnlargeNamedVars(namedvars *varmap, int newvarcnt) { int i; varmap->vars = (char **) realloc(varmap->vars, sizeof(char *) * newvarcnt); varmap->loaded = (int *) realloc(varmap->loaded, sizeof(int) * newvarcnt); varmap->dvalue = (double *) realloc(varmap->dvalue, sizeof(double) * newvarcnt); varmap->ivalue = (int *) realloc(varmap->ivalue, sizeof(int) * newvarcnt); varmap->dynvalue = (void **) realloc(varmap->dynvalue, sizeof(void *) * newvarcnt); for (i = varmap->varcnt; i < newvarcnt; i++) { varmap->vars[i] = NULL; varmap->loaded[i] = 0; varmap->dvalue[i] = 0.0; varmap->ivalue[i] = 0; varmap->dynvalue[i] = NULL; } varmap->varcnt = newvarcnt; } int AddNamedVarAt(namedvars varmap, const char *varname, int index) { if (varmap.varcnt > index) { varmap.vars[index] = (char *) malloc(sizeof(char) * (strlen(varname) + 1)); strcpy(varmap.vars[index], varname); return index; } return -1; } int AddNamedVar(namedvars varmap, const char *varname) { int index = GetNamedVarIndex(varmap, varname); if (index == -1 * varmap.varcnt) { return -1; } else if ((index < 0) || (index == 0 && varmap.vars[0] == NULL)) { index *= -1; varmap.vars[index] = (char *) malloc(sizeof(char) * (strlen(varname) + 1)); strcpy(varmap.vars[index], varname); } return index; } void SetNamedVarValuesAt(namedvars varmap, int index, double dvalue, int ivalue, void *dynvalue) { varmap.dvalue[index] = dvalue; varmap.ivalue[index] = ivalue; varmap.dynvalue[index] = dynvalue; } int SetNamedVarValues(namedvars varmap, const char *varname, double dvalue, int ivalue, void *dynvalue) { int index = GetNamedVarIndex(varmap, varname); if (index == -1 * varmap.varcnt) { return -1; } else if ((index < 0) || (index == 0 && varmap.vars[0] == NULL)) { index *= -1; varmap.vars[index] = (char *) malloc(sizeof(char) * (strlen(varname) + 1)); strcpy(varmap.vars[index], varname); varmap.dvalue[index] = dvalue; varmap.ivalue[index] = ivalue; varmap.dynvalue[index] = dynvalue; } else { varmap.dvalue[index] = dvalue; varmap.ivalue[index] = ivalue; varmap.dynvalue[index] = dynvalue; } return index; } int GetNamedVarIndex(const namedvars varmap, const char *varname) { int i; for (i = 0; i < varmap.varcnt; i++) { if (varmap.vars[i] == NULL) return -1 * i; if (strcmp(varmap.vars[i], varname) == 0) return i; } return -1 * varmap.varcnt; } char* GetNodeVarName(DdManager *manager, namedvars varmap, DdNode *node) { if (node == NULL) return NULL; if (node == HIGH(manager)) return "true"; if (node == LOW(manager)) return "false"; return varmap.vars[GetIndex(node) - varmap.varstart]; } char* GetNodeVarNameDisp(DdManager *manager, namedvars varmap, DdNode *node) { if (HIGH(manager) == node) return "TRUE"; if (LOW(manager) == node) return "FALSE"; if (NULL == node) return "(null)"; return varmap.vars[GetIndex(node) - varmap.varstart]; } int RepairVarcnt(namedvars *varmap) { while (varmap->vars[varmap->varcnt - 1] == NULL) varmap->varcnt--; return varmap->varcnt; } int all_loaded(namedvars varmap, int disp) { int i, res = 1; for (i = 0; i < varmap.varcnt; i++) { if (varmap.loaded[i] == 0) { res = 0; if (disp) fprintf(stderr, "The variable: %s was not loaded with values.\n", varmap.vars[i]); else return 0; } } return res; } /* Parser */ DdNode* FileGenerateBDD(DdManager *manager, namedvars varmap, bddfileheader fileheader) { int icomment, maxlinesize, icur, iline, curinter, iequal; DdNode *Line, **inter; char buf, *inputline, *filename; bddfileheader interfileheader; // Initialization of intermediate steps inter = (DdNode **) malloc(sizeof(DdNode *) * fileheader.intercnt); for (icur = 0; icur < fileheader.intercnt; icur++) inter[icur] = NULL; // Read file data interfileheader.inputfile = NULL; filename = NULL; // For nested files iequal = 0; // Flag for encountered = sign icur = 0; // Pointer for inputline buffer location iline = 5; // Current file line (first after header) icomment = 0; // Flag for comments maxlinesize = 80; // inputline starting buffer size inputline = (char *) malloc(sizeof(char) * maxlinesize); while(!feof(fileheader.inputfile)) { fread(&buf, 1, 1, fileheader.inputfile); if (buf == ';' || buf == '%' || buf == '$') icomment = 1; if (buf == '\n') { if (icomment) icomment = 0; if (iequal > 1) { fprintf(stderr, "Error at line: %i. Line contains more than 1 equal(=) signs.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } else iequal = 0; if (icur > 0) { inputline[icur] = '\0'; if (inputline[0] != 'L') { fprintf(stderr, "Error at line: %i. Intermediate results should start with L.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } curinter = getInterBDD(inputline); if (curinter == -1) { if (inputline[0] == 'L' && IsPosNumber(inputline + 1)) { curinter = atoi(inputline + 1) - 1; if (curinter > -1 && curinter < fileheader.intercnt && inter[curinter] != NULL) { if (_debug) fprintf(stderr, "Returned: %s\n", inputline); fclose(fileheader.inputfile); Line = inter[curinter]; free(inter); free(inputline); return Line; } else { fprintf(stderr, "Error at line: %i. Return result asked doesn't exist.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } } else { fprintf(stderr, "Error at line: %i. Invalid intermediate result format.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } } else if (curinter > -1 && curinter < fileheader.intercnt && inter[curinter] == NULL) { if (_debug) fprintf(stderr, "%i %s\n", curinter, inputline); filename = getFileName(inputline); if (filename == NULL) { Line = LineParser(manager, varmap, inter, fileheader.intercnt, inputline, iline); } else { interfileheader = ReadFileHeader(filename); if (interfileheader.inputfile == NULL) { //Line = simpleBDDload(manager, &varmap, filename); Line = NULL; } else { Line = FileGenerateBDD(manager, varmap, interfileheader); } if (Line == NULL) fprintf(stderr, "Error at line: %i. Error in nested BDD file: %s.\n", iline, filename); free(filename); filename = NULL; interfileheader.inputfile = NULL; } if (Line == NULL) { fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } inter[curinter] = Line; icur = 0; } else if (curinter > -1 && curinter < fileheader.intercnt && inter[curinter] != NULL) { fprintf(stderr, "Error at line: %i. Intermediate results can't be overwritten.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } else { fprintf(stderr, "Error at line: %i. Intermediate result asked doesn't exist.\n", iline); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } } iline++; } else if (buf != ' ' && buf != '\t' && !icomment) { if (buf == '=') iequal++; inputline[icur] = buf; icur += 1; if (icur == _maxbufsize) { fprintf(stderr, "Error: Maximum buffer size(%i) exceeded.\n", _maxbufsize); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } while (icur > maxlinesize - 1) { maxlinesize *= 2; inputline = (char *) realloc(inputline, sizeof(char) * maxlinesize); } } } fprintf(stderr, "Error, file either doesn't end with a blank line or no return result was asked.\n"); fclose(fileheader.inputfile); free(inter); free(inputline); return NULL; } int getInterBDD(char *function) { int i, ret; char *inter; for (i = 0; i < strlen(function); i++) { if (function[i] == '=') { inter = (char *) malloc(sizeof(char) * i); strncpy(inter, function + 1, i - 1); inter[i - 1] = '\0'; if (IsPosNumber(inter)) { ret = atoi(inter) - 1; free(inter); return ret; } else { free(inter); return -1; } } } return -1; } char* getFileName(const char *function) { int i = 0; char *filename; while(function[i] != '=' && (i + 1) < strlen(function)) i++; if ((i + 1) < strlen(function)) { i++; if (function[i] == '<' && function[strlen(function) - 1] == '>') { filename = (char *) malloc(sizeof(char) * strlen(function) - i); strcpy(filename, function + i + 1); filename[strlen(function) - i - 2] = '\0'; return filename; } } return NULL; } DdNode* LineParser(DdManager *manager, namedvars varmap, DdNode **inter, int maxinter, char *function, int iline) { int istart, iend, ilength, i, symbol, ivar, inegvar, inegoper, iconst; long startAt, endAt; double secs; DdNode *bdd; char *term, curoper; bdd = HIGH(manager); Cudd_Ref(bdd); term = NULL; ivar = -1; curoper = '*'; istart = -1; iend = strlen(function) - 1; ilength = -1; symbol = -1; inegvar = 0; inegoper = 0; iconst = 0; for (i = strlen(function) - 1; i > -1; i--) { if (symbol == -1 && isOperator(function[i])) { symbol = i; istart = i + 1; ilength = iend - i; iend = i - 1; if (ilength > 0 && !(ilength == 1 && function[istart] == '~')) { term = (char *) malloc(sizeof(char) * (ilength + 1)); strncpy(term, function + istart, ilength); term[ilength] = '\0'; } else { fprintf(stderr, "Line Parser Error at line: %i. An operator was encounter with no term at its right side.\n", iline); free(term); return NULL; } } if (symbol != -1) { if (term[0] == '~') inegvar = 1; else inegvar = 0; if (term[0 + inegvar] != 'L') { // Term is a variable if (strcmp(term + inegvar, "TRUE") == 0) { iconst = 1; } else if (strcmp(term + inegvar, "FALSE") == 0) { iconst = 1; inegvar = 1; } else { iconst = 0; ivar = AddNamedVar(varmap, term + inegvar); if (ivar == -1) { fprintf(stderr, "Line Parser Error at line: %i. More BDD variables than the reserved term: %s.\n", iline, term); free(term); return NULL; } } if (_debug) fprintf(stderr, "%s\n", term); if (_debug && !iconst) fprintf(stderr, "PNZ1:%.0f P1:%.0f S1:%i PNZ2:%.0f P2:%.0f S2:%i\n", Cudd_CountPathsToNonZero(bdd), Cudd_CountPath(bdd), Cudd_DagSize(bdd), Cudd_CountPathsToNonZero(GetVar(manager, ivar + varmap.varstart)), Cudd_CountPath(GetVar(manager, ivar + varmap.varstart)), Cudd_DagSize(GetVar(manager, ivar + varmap.varstart)) ); startAt = clock(); if (!iconst) { if (inegvar) bdd = BDD_Operator(manager, NOT(GetVar(manager, ivar + varmap.varstart)), bdd, curoper, inegoper); else bdd = BDD_Operator(manager, GetVar(manager, ivar + varmap.varstart), bdd, curoper, inegoper); } else { switch(curoper) { case '+': if (inegvar ^ inegoper) ; else { bdd = HIGH(manager); Cudd_Ref(bdd); } break; case '*': if (inegvar ^ inegoper) { bdd = LOW(manager); Cudd_Ref(bdd); } break; case '#': if (inegvar ^ inegoper) ; else bdd = NOT(bdd); break; } } endAt = clock(); secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC); if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt); //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager); if (bdd == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Error using operator %c on term: %s.\n", iline, curoper, term); free(term); return NULL; } } else { // Term is an intermediate result if (IsPosNumber(term + inegvar + 1)) ivar = atoi(term + inegvar + 1) - 1; else { fprintf(stderr, "Line Parser Error at line: %i. Invalid intermediate result format term: %s.\n", iline, term); free(term); return NULL; } if (ivar < 0 || ivar > maxinter || inter[ivar] == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Usage of undeclared intermediate result term: %s.\n", iline, term); free(term); return NULL; } if (_debug) fprintf(stderr, "%s\n", term); if (_debug) fprintf(stderr, "PNZ1:%.0f P1:%.0f S1:%i PNZ2:%.0f P2:%.0f S2:%i\n", Cudd_CountPathsToNonZero(bdd), Cudd_CountPath(bdd), Cudd_DagSize(bdd), Cudd_CountPathsToNonZero(inter[ivar]), Cudd_CountPath(inter[ivar]), Cudd_DagSize(inter[ivar]) ); startAt = clock(); if (inegvar) bdd = BDD_Operator(manager, NOT(inter[ivar]), bdd, curoper, inegoper); else bdd = BDD_Operator(manager, inter[ivar], bdd, curoper, inegoper); endAt = clock(); secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC); if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt); //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager); if (bdd == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Error using operator %c on term: %s.\n", iline, curoper, term); free(term); return NULL; } } free(term); term = NULL; curoper = function[symbol]; if (curoper == '=') return bdd; if (function[symbol - 1] == '~') { inegoper = 1; i--; iend--; } else { inegoper = 0; } symbol = -1; } } return NULL; } DdNode* BDD_Operator(DdManager *manager, DdNode *bdd1, DdNode *bdd2, char Operator, int inegoper) { switch (Operator) { case '+': if (inegoper) return D_BDDNor(manager, bdd1, bdd2); else return D_BDDOr(manager, bdd1, bdd2); break; case '*': if (inegoper) return D_BDDNand(manager, bdd1, bdd2); else return D_BDDAnd(manager, bdd1, bdd2); break; case '#': if (inegoper) return D_BDDXnor(manager, bdd1, bdd2); else return D_BDDXor(manager, bdd1, bdd2); break; default: return NULL; break; } } DdNode* OnlineGenerateBDD(DdManager *manager, namedvars *varmap) { int icomment, maxlinesize, icur, iline, curinter, iequal, iinters, itmp, i; DdNode *Line, **inter; char buf, *inputline, *filename; bddfileheader interfileheader; // Initialization of intermediate steps iinters = 1; inter = (DdNode **) malloc(sizeof(DdNode *) * iinters); for (icur = 0; icur < iinters; icur++) inter[icur] = NULL; // Read file data interfileheader.inputfile = NULL; filename = NULL; // For nested files iequal = 0; // Flag for encountered = sign icur = 0; // Pointer for inputline buffer location iline = 1; // Current file line (first after header) icomment = 0; // Flag for comments maxlinesize = 80; // inputline starting buffer size inputline = (char *) malloc(sizeof(char) * maxlinesize); do { buf = fgetc(stdin); if (buf == ';' || buf == '%' || buf == '$') icomment = 1; if (buf == '\n') { if (icomment) icomment = 0; if (iequal > 1) { fprintf(stderr, "Error at line: %i. Line contains more than 1 equal(=) signs.\n", iline); free(inter); free(inputline); return NULL; } else iequal = 0; if (icur > 0) { inputline[icur] = '\0'; if (inputline[0] == '@') { if (inputline[1] == 'e') { free(inter); free(inputline); exit(0); } else { itmp = GetParam(inputline, 1); if (itmp > varmap->varcnt) EnlargeNamedVars(varmap, itmp); itmp = GetParam(inputline, 2); if (itmp > iinters) { inter = (DdNode **) realloc(inter, sizeof(DdNode *) * itmp); for (i = iinters; i < itmp; i++) inter[i] = NULL; iinters = itmp; } } icur = 0; } else { if (inputline[0] != 'L') { fprintf(stderr, "Error at line: %i. Intermediate results should start with L.\n", iline); free(inter); free(inputline); return NULL; } curinter = getInterBDD(inputline); if (curinter == -1) { if (inputline[0] == 'L' && IsPosNumber(inputline + 1)) { curinter = atoi(inputline + 1) - 1; if (curinter > -1 && curinter < iinters && inter[curinter] != NULL) { if (_debug) fprintf(stderr, "Returned: %s\n", inputline); Line = inter[curinter]; free(inter); free(inputline); return Line; } else { fprintf(stderr, "Error at line: %i. Return result asked doesn't exist.\n", iline); free(inter); free(inputline); return NULL; } } else { fprintf(stderr, "Error at line: %i. Invalid intermediate result format.\n", iline); free(inter); free(inputline); return NULL; } } else if (curinter > -1) { if (curinter >= iinters) { inter = (DdNode **) realloc(inter, sizeof(DdNode *) * (curinter + 1)); for (i = iinters; i < curinter + 1; i++) inter[i] = NULL; iinters = curinter + 1; } if (inter[curinter] == NULL) { if (_debug) fprintf(stderr, "%i %s\n", curinter, inputline); filename = getFileName(inputline); if (filename == NULL) { Line = OnlineLineParser(manager, varmap, inter, iinters, inputline, iline); } else { interfileheader = ReadFileHeader(filename); if (interfileheader.inputfile == NULL) { //Line = simpleBDDload(manager, varmap, filename); Line = NULL; } else { Line = FileGenerateBDD(manager, *varmap, interfileheader); } if (Line == NULL) fprintf(stderr, "Error at line: %i. Error in nested BDD file: %s.\n", iline, filename); free(filename); filename = NULL; interfileheader.inputfile = NULL; } if (Line == NULL) { free(inter); free(inputline); return NULL; } inter[curinter] = Line; icur = 0; } else if (inter[curinter] != NULL) { fprintf(stderr, "Error at line: %i. Intermediate results can't be overwritten.\n", iline); free(inter); free(inputline); return NULL; } } else { fprintf(stderr, "Error at line: %i. Intermediate result asked doesn't exist.\n", iline); free(inter); free(inputline); return NULL; } } } iline++; } else if (buf != ' ' && buf != '\t' && !icomment) { if (buf == '=') iequal++; inputline[icur] = buf; icur += 1; if (icur == _maxbufsize) { fprintf(stderr, "Error: Maximum buffer size(%i) exceeded.\n", _maxbufsize); free(inter); free(inputline); return NULL; } while (icur > maxlinesize - 1) { maxlinesize *= 2; inputline = (char *) realloc(inputline, sizeof(char) * maxlinesize); } } } while(1); fprintf(stderr, "Error, file either doesn't end with a blank line or no return result was asked.\n"); free(inter); free(inputline); return NULL; } DdNode* OnlineLineParser(DdManager *manager, namedvars *varmap, DdNode **inter, int maxinter, char *function, int iline) { int istart, iend, ilength, i, symbol, ivar, inegvar, inegoper, iconst; long startAt, endAt; double secs; DdNode *bdd; char *term, curoper; bdd = HIGH(manager); Cudd_Ref(bdd); term = NULL; ivar = -1; curoper = '*'; istart = -1; iend = strlen(function) - 1; ilength = -1; symbol = -1; inegvar = 0; inegoper = 0; iconst = 0; for (i = strlen(function) - 1; i > -1; i--) { if (symbol == -1 && isOperator(function[i])) { symbol = i; istart = i + 1; ilength = iend - i; iend = i - 1; if (ilength > 0 && !(ilength == 1 && function[istart] == '~')) { term = (char *) malloc(sizeof(char) * (ilength + 1)); strncpy(term, function + istart, ilength); term[ilength] = '\0'; } else { fprintf(stderr, "Line Parser Error at line: %i. An operator was encounter with no term at its right side.\n", iline); free(term); return NULL; } } if (symbol != -1) { if (term[0] == '~') inegvar = 1; else inegvar = 0; if (term[0 + inegvar] != 'L') { // Term is a variable if (strcmp(term + inegvar, "TRUE") == 0) { iconst = 1; } else if (strcmp(term + inegvar, "FALSE") == 0) { iconst = 1; inegvar = 1; } else { iconst = 0; ivar = AddNamedVar(*varmap, term + inegvar); if (ivar == -1) { EnlargeNamedVars(varmap, varmap->varcnt + 1); ivar = AddNamedVar(*varmap, term + inegvar); } if (ivar == -1) { fprintf(stderr, "Line Parser Error at line: %i. More BDD variables than the reserved term: %s.\n", iline, term); free(term); return NULL; } } if (_debug) fprintf(stderr, "%s\n", term); if (_debug && !iconst) fprintf(stderr, "PNZ1:%.0f P1:%.0f S1:%i PNZ2:%.0f P2:%.0f S2:%i\n", Cudd_CountPathsToNonZero(bdd), Cudd_CountPath(bdd), Cudd_DagSize(bdd), Cudd_CountPathsToNonZero(GetVar(manager, ivar + varmap->varstart)), Cudd_CountPath(GetVar(manager, ivar + varmap->varstart)), Cudd_DagSize(GetVar(manager, ivar + varmap->varstart)) ); startAt = clock(); if (!iconst) { if (inegvar) bdd = BDD_Operator(manager, NOT(GetVar(manager, ivar + varmap->varstart)), bdd, curoper, inegoper); else bdd = BDD_Operator(manager, GetVar(manager, ivar + varmap->varstart), bdd, curoper, inegoper); } else { switch(curoper) { case '+': if (inegvar ^ inegoper) ; else { bdd = HIGH(manager); Cudd_Ref(bdd); } break; case '*': if (inegvar ^ inegoper) { bdd = LOW(manager); Cudd_Ref(bdd); } break; case '#': if (inegvar ^ inegoper) ; else bdd = NOT(bdd); break; } } endAt = clock(); secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC); if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt); //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager); if (bdd == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Error using operator %c on term: %s.\n", iline, curoper, term); free(term); return NULL; } } else { // Term is an intermediate result if (IsPosNumber(term + inegvar + 1)) ivar = atoi(term + inegvar + 1) - 1; else { fprintf(stderr, "Line Parser Error at line: %i. Invalid intermediate result format term: %s.\n", iline, term); free(term); return NULL; } if (ivar < 0 || ivar > maxinter || inter[ivar] == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Usage of undeclared intermediate result term: %s.\n", iline, term); free(term); return NULL; } if (_debug) fprintf(stderr, "%s\n", term); if (_debug) fprintf(stderr, "PNZ1:%.0f P1:%.0f S1:%i PNZ2:%.0f P2:%.0f S2:%i\n", Cudd_CountPathsToNonZero(bdd), Cudd_CountPath(bdd), Cudd_DagSize(bdd), Cudd_CountPathsToNonZero(inter[ivar]), Cudd_CountPath(inter[ivar]), Cudd_DagSize(inter[ivar]) ); startAt = clock(); if (inegvar) bdd = BDD_Operator(manager, NOT(inter[ivar]), bdd, curoper, inegoper); else bdd = BDD_Operator(manager, inter[ivar], bdd, curoper, inegoper); endAt = clock(); secs = ((double) (endAt - startAt)) / ((double) CLOCKS_PER_SEC); if (_debug) fprintf(stderr, "term: %s of line: %i took: %ld\n", term, iline, endAt - startAt); //if ((endAt - startAt) > 10000000) Cudd_AutodynDisable(manager); if (bdd == NULL) { fprintf(stderr, "Line Parser Error at line: %i. Error using operator %c on term: %s.\n", iline, curoper, term); free(term); return NULL; } } free(term); term = NULL; curoper = function[symbol]; if (curoper == '=') return bdd; if (function[symbol - 1] == '~') { inegoper = 1; i--; iend--; } else { inegoper = 0; } symbol = -1; } } return NULL; } int GetParam(char *inputline, int iParam) { int icoma, istart, iend, ret; char *numb; istart = 1; icoma = istart; iend = strlen(inputline); while((inputline[icoma] != ',') && (icoma < iend)) icoma++; if (iParam == 1) { numb = (char *) malloc(sizeof(char) * icoma); strncpy(numb, inputline + 1, icoma - 1); numb[icoma - 1] = '\0'; if (IsPosNumber(numb)) { ret = atoi(numb); free(numb); return ret; } } else if(iParam == 2) { numb = (char *) malloc(sizeof(char) * (iend - icoma + 1)); strncpy(numb, inputline + icoma + 1, iend - icoma); numb[iend - icoma] = '\0'; if (IsPosNumber(numb)) { ret = atoi(numb); free(numb); return ret; } } return 0; } void onlinetraverse(DdManager *manager, namedvars varmap, hisqueue *HisQueue, DdNode *bdd) { char buf, *inputline; int icur, maxlinesize, iline, index, iloop, ivalue, iQsize, i, inQ, iRoot; double dvalue; DdNode **Q, **Q2, *h_node, *l_node, *curnode; hisqueue *his; hisnode *hnode; iloop = 1; icur = 0; // Pointer for inputline buffer location iline = 1; // Current file line (first after header) maxlinesize = 80; // inputline starting buffer size inputline = (char *) malloc(sizeof(char) * maxlinesize); curnode = bdd; iQsize = 0; iRoot = 1; Q = (DdNode **) malloc(sizeof(DdNode *) * iQsize); Q2 = NULL; his = InitHistory(varmap.varcnt); do { buf = fgetc(stdin); if (buf == '\n') { inputline[icur] = '\0'; if ((icur > 0) && (inputline[0] == '@') && (inputline[2] == ',' || inputline[2] == '\0')) { switch(inputline[1]) { case 'c': if (iRoot) { iRoot = 0; printf("bdd_temp_value('%s', %i).\n", GetNodeVarNameDisp(manager, varmap, curnode), 1); } else { printf("bdd_temp_value('%s', %i).\n", GetNodeVarNameDisp(manager, varmap, curnode), iQsize); } fflush(stdout); break; case 'n': if (curnode != HIGH(manager) && curnode != LOW(manager) && (hnode = GetNode(his, varmap.varstart, curnode)) == NULL) { //AddNode(his, varmap.varstart, curnode, 0.0, 0, NULL); l_node = LowNodeOf(manager, curnode); h_node = HighNodeOf(manager, curnode); inQ = 0; for(i = 0; (i < iQsize / 2) && (inQ < 3); i++) inQ = (Q[i] == l_node) || (Q[iQsize - i] == l_node) + 2 * (Q[i] == h_node) || (Q[iQsize - i] == h_node); if (inQ & 1 == 0) inQ = inQ + (GetNode(his, varmap.varstart, l_node) != NULL); if (inQ & 2 == 0) inQ = inQ + 2 * (GetNode(his, varmap.varstart, h_node) != NULL); if (inQ & 1 == 1) inQ = inQ - (l_node == HIGH(manager) || l_node == LOW(manager)); if (inQ & 2 == 2) inQ = inQ - 2 * (h_node == HIGH(manager) || h_node == LOW(manager)); inQ = 0; switch(inQ) { case 0: iQsize += 2; Q = (DdNode **) realloc(Q, sizeof(DdNode *) * iQsize); Q[iQsize - 2] = l_node; Q[iQsize - 1] = h_node; break; case 1: iQsize++; Q = (DdNode **) realloc(Q, sizeof(DdNode *) * iQsize); Q[iQsize - 1] = h_node; break; case 2: iQsize++; Q = (DdNode **) realloc(Q, sizeof(DdNode *) * iQsize); Q[iQsize - 1] = l_node; break; case 3: break; default: break; } } if (inputline[2] == '\0' || strcmp(inputline + 3, "DFS") == 0) { if (iQsize > 0) { iQsize--; curnode = Q[iQsize]; Q = (DdNode **) realloc(Q, sizeof(DdNode *) * iQsize); } } else if (strcmp(inputline + 3, "BFS") == 0) { if (iQsize > 0) { iQsize--; curnode = Q[0]; Q2 = (DdNode **) malloc(sizeof(DdNode *) * iQsize); for(i = 0; i < iQsize; i++) Q2[i] = Q[i + 1]; free(Q); Q = Q2; } } else { fprintf(stderr, "Error: Could not find method: %s, Correct syntax @n,[DFS, BFS].\n", inputline + 3); free(Q); free(inputline); exit(-1); } break; case 'h': printf("bdd_temp_value('%s').\n", GetNodeVarNameDisp(manager, varmap, HighNodeOf(manager, curnode))); fflush(stdout); break; case 'l': printf("bdd_temp_value('%s').\n", GetNodeVarNameDisp(manager, varmap, LowNodeOf(manager, curnode))); fflush(stdout); break; case 'v': index = GetNamedVarIndex(varmap, inputline + 3); if (index >= 0) { printf("bdd_temp_value([%f,%i,%s]).\n", varmap.dvalue[index], varmap.ivalue[index], (char *) varmap.dynvalue[index]); fflush(stdout); } else { fprintf(stderr, "Error: Could not find variable: %s, Correct syntax @v,[variable name].\n", inputline + 3); free(Q); free(inputline); exit(-1); } break; case 'e': iloop = 0; break; default: fprintf(stderr, "Error: Not recognizable instruction: %s.\n", inputline); free(Q); free(inputline); exit(-1); break; } icur = 0; } else { fprintf(stderr, "Error: Not recognizable instruction: %s.\n", inputline); free(Q); free(inputline); exit(-1); } iline++; } else if (buf != ' ' && buf != '\t') { inputline[icur] = buf; icur += 1; if (icur == _maxbufsize) { fprintf(stderr, "Error: Maximum buffer size(%i) exceeded.\n", _maxbufsize); free(Q); free(inputline); exit(-1); } while (icur > maxlinesize - 1) { maxlinesize *= 2; inputline = (char *) realloc(inputline, sizeof(char) * maxlinesize); } } } while(iloop); free(Q); free(inputline); }