int main() { for(int j=0;j < 3; j++) { VC vc = vc_createValidityChecker(); vc_setFlags(vc,'n'); vc_setFlags(vc,'d'); vc_setFlags(vc,'p'); vc_setFlags(vc,'x'); Type bv8 = vc_bvType(vc, 8); Expr a = vc_bvCreateMemoryArray(vc, "a"); Expr index_3 = vc_bvConstExprFromLL(vc, 32, 3); Expr a_of_0 = vc_readExpr(vc, a, index_3); int i; for (i = 2; i >= 0; i--) a_of_0 = vc_bvConcatExpr(vc, a_of_0, vc_readExpr(vc, a, vc_bvConstExprFromInt(vc, 32, i))); Expr cast_32_to_8 = vc_bvExtract(vc, a_of_0, 7, 0); Expr cast_8_to_32 = vc_bvSignExtend(vc, cast_32_to_8, 32); vc_printExpr(vc, cast_8_to_32); cast_8_to_32 = vc_simplify(vc, cast_8_to_32); vc_Destroy(vc); } }
int main() { VC vc = vc_createValidityChecker(); vc_setFlags('n'); vc_setFlags('d'); //vc_setFlags('p'); Type bv8 = vc_bvType(vc, 8); Expr a = vc_bvCreateMemoryArray(vc, "a"); Expr index_3 = vc_bvConstExprFromInt(vc, 32, 3); Expr a_of_0 = vc_readExpr(vc, a, index_3); int i; for (i = 2; i >= 0; i--) a_of_0 = vc_bvConcatExpr(vc, a_of_0, vc_readExpr(vc, a, vc_bvConstExprFromInt(vc, 32, i))); Expr ct_5 = vc_bvConstExprFromInt(vc, 32, 5); Expr a_of_0_div_5 = vc_bvDivExpr(vc, 32, a_of_0, ct_5); Expr a_of_0_div_5_eq_5 = vc_eqExpr(vc, a_of_0_div_5, ct_5); vc_printExpr(vc, a_of_0_div_5_eq_5); printf("\n"); /* Query 1 */ vc_push(vc); int query = vc_query(vc, a_of_0_div_5_eq_5); vc_pop(vc); printf("query = %d\n", query); vc_assertFormula(vc, a_of_0_div_5_eq_5); vc_printExpr(vc, a_of_0_div_5_eq_5); /* query(false) */ vc_push(vc); query = vc_query(vc, vc_falseExpr(vc)); vc_pop(vc); printf("query = %d\n", query); assert(!query); assert(vc_counterexample_size(vc)); int* a_val = (int*) malloc(sizeof *a_val); char *p = (char*) a_val; //a_of_1 = vc_simplify(vc, a_of_1); // BUG here for (i=0; i<=3; i++) { Expr elem = vc_readExpr(vc, a, vc_bvConstExprFromInt(vc, 32, i)); Expr ce = vc_getCounterExample(vc, elem); unsigned long long v = getBVUnsigned(ce); fprintf(stderr, "a[%d] = %ld\n", i, v); *p = v; p++; } printf("a = %d\n", *a_val); assert((*a_val)/5 == 5); vc_Destroy(vc); }
// FIXME: Pick a sensible testname that actually means something! TEST(array_cvcl02,one) { VC vc = vc_createValidityChecker(); vc_setFlag(vc,'n'); vc_setFlag(vc,'d'); vc_setFlag(vc,'p'); Expr cvcl_array = vc_varExpr1(vc, "a",32,32); Expr i = vc_varExpr1(vc, "i", 0, 8); Expr i32 = vc_bvConcatExpr(vc, vc_bvConstExprFromStr(vc, "000000000000000000000000"), i); Expr no_underflow = vc_bvLeExpr(vc, vc_bvConstExprFromInt(vc, 32, 0), i32); Expr no_overflow = vc_bvLeExpr(vc, i32, vc_bvConstExprFromInt(vc, 32, 9)); Expr in_bounds = vc_andExpr(vc, no_underflow, no_overflow); Expr a_of_i = vc_bvSignExtend(vc, vc_readExpr(vc,cvcl_array,i32), 32); Expr a_of_i_eq_11 = vc_eqExpr(vc, vc_bvConcatExpr(vc,i32,a_of_i), vc_bvConstExprFromInt(vc, 64, 11)); vc_assertFormula(vc, in_bounds); vc_assertFormula(vc, a_of_i_eq_11); vc_query(vc, vc_falseExpr(vc)); long long v; Expr pre = vc_bvConstExprFromInt(vc,24,0); int j; for(j=0;j<10;j++) { Expr exprj = vc_bvConstExprFromInt(vc,8,j); Expr index = vc_bvConcatExpr(vc, pre, exprj); index = vc_simplify(vc,index); Expr a_of_j = vc_readExpr(vc, cvcl_array, index); Expr ce = vc_getCounterExample(vc,a_of_j); } vc_Destroy(vc); //vc_printCounterExample(vc); // FIXME: Actually test something //ASSERT_TRUE(false && "FIXME: Actually test something"); }
TEST(stp_array_model,one) { VC vc = vc_createValidityChecker(); Expr a = vc_bvCreateMemoryArray(vc, "a"); Expr index_1 = vc_bvConstExprFromInt(vc, 32, 1); Expr a_of_1 = vc_readExpr(vc, a, index_1); Expr index_2 = vc_bvConstExprFromInt(vc, 32, 2); Expr a_of_2 = vc_readExpr(vc, a, index_2); Expr ct_42 = vc_bvConstExprFromInt(vc, 8, 42); Expr a_of_1_eq_42 = vc_eqExpr(vc, a_of_1, ct_42); Expr ct_77 = vc_bvConstExprFromInt(vc, 8, 77); Expr a_of_2_eq_77 = vc_eqExpr(vc, a_of_2, ct_77); vc_assertFormula(vc, a_of_1_eq_42); vc_assertFormula(vc, a_of_2_eq_77); /* query(false) */ ASSERT_TRUE(vc_query(vc, vc_falseExpr(vc)) == 0); // Should be invalid ASSERT_FALSE(vc_counterexample_size(vc) == 0); Expr *indices; Expr *values; int size; vc_getCounterExampleArray(vc, a, &indices, &values, &size); ASSERT_FALSE(size == 0); // No array entries int j; for (j = 0; j < size; ++j) { Expr index = vc_getCounterExample(vc, indices[j]); Expr value = vc_getCounterExample(vc, values[j]); unsigned long long i = getBVUnsigned(index); unsigned long long v = getBVUnsigned(value); fprintf(stderr, "a[%llu] = %llu\n", i, v); } vc_Destroy(vc); }
Expr vc_bvReadMemoryArray(VC vc, Expr array, Expr byteIndex, int numOfBytes) { if(!(numOfBytes > 0)) BEEV::FatalError("numOfBytes must be greater than 0"); if(numOfBytes == 1) return vc_readExpr(vc,array,byteIndex); else { int count = 1; Expr a = vc_readExpr(vc,array,byteIndex); while(--numOfBytes > 0) { Expr b = vc_readExpr(vc,array, /*vc_simplify(vc, */ vc_bvPlusExpr(vc, 32, byteIndex, vc_bvConstExprFromInt(vc,32,count)))/*)*/; a = vc_bvConcatExpr(vc,b,a); count++; } return a; } }
int main() { VC vc = vc_createValidityChecker(); vc_setFlags('n'); vc_setFlags('d'); //vc_setFlags('p'); Type bv8 = vc_bvType(vc, 8); Expr a = vc_bvCreateMemoryArray(vc, "a"); Expr index_1 = vc_bvConstExprFromInt(vc, 32, 1); Expr a_of_1 = vc_readExpr(vc, a, index_1); Expr ct_100 = vc_bvConstExprFromInt(vc, 8, 100); Expr a_of_1_eq_100 = vc_eqExpr(vc, a_of_1, ct_100); /* Query 1 */ vc_push(vc); int query = vc_query(vc, a_of_1_eq_100); vc_pop(vc); printf("query = %d\n", query); vc_assertFormula(vc, a_of_1_eq_100); /* query(false) */ vc_push(vc); query = vc_query(vc, vc_falseExpr(vc)); vc_pop(vc); printf("query = %d\n", query); if (vc_counterexample_size(vc) == 0) { printf("Counterexample size is 0\n"); exit(1); } a_of_1 = vc_simplify(vc, a_of_1); //vc_printExpr(vc, a_of_1); Expr ce = vc_getCounterExample(vc, a_of_1); unsigned long long v = getBVUnsigned(ce); fprintf(stderr, "a[1] = %ld\n", v); vc_Destroy(vc); }
TEST(stp_counterex,one) { VC vc = vc_createValidityChecker(); vc_setFlags(vc,'n'); vc_setFlags(vc,'d'); //vc_setFlags(vc,'p'); Type bv8 = vc_bvType(vc, 8); Expr a = vc_bvCreateMemoryArray(vc, "a"); Expr index_1 = vc_bvConstExprFromInt(vc, 32, 1); Expr a_of_1 = vc_readExpr(vc, a, index_1); Expr ct_100 = vc_bvConstExprFromInt(vc, 8, 100); Expr a_of_1_eq_100 = vc_eqExpr(vc, a_of_1, ct_100); /* Query 1 */ vc_push(vc); int query = vc_query(vc, a_of_1_eq_100); vc_pop(vc); printf("query = %d\n", query); vc_assertFormula(vc, a_of_1_eq_100); /* query(false) */ vc_push(vc); query = vc_query(vc, vc_falseExpr(vc)); vc_pop(vc); printf("query = %d\n", query); ASSERT_FALSE(vc_counterexample_size(vc) == 0); a_of_1 = vc_simplify(vc, a_of_1); //vc_printExpr(vc, a_of_1); Expr ce = vc_getCounterExample(vc, a_of_1); unsigned long long v = getBVUnsigned(ce); fprintf(stderr, "a[1] = %llu\n", v); vc_Destroy(vc); // FIXME: we should test more things! }