Create 3_sat_log.c

Test log of polynomial time for formal proof. 

Signed-off-by: Josef Edwards <joed6834@colorado.edu>

3_sat_log.c

@@ -0,0 +1,61 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+// Function to log results to a file
+void log_results(const char *solver_name, const char *instance_name, bool result, double time_taken, int iterations) {
+    FILE *log_file = fopen("sat_comparison_log.txt", "a");
+    if (log_file == NULL) {
+        perror("Failed to open log file");
+        return;
+    }
+
+    fprintf(log_file, "Solver: %s, Instance: %s, Result: %s, Time: %f seconds, Iterations: %d\n",
+            solver_name, instance_name, result ? "SATISFIABLE" : "UNSATISFIABLE", time_taken, iterations);
+
+    fclose(log_file);
+}
+
+// Function to run tests for both PMLL and MiniSat solvers
+void run_comparison_tests(int num_variables, int num_clauses) {
+    char filename[256];
+    sprintf(filename, "3sat_instance_%d_%d.cnf", num_variables, num_clauses);
+
+    // Step 1: Generate random SAT instance
+    generate_3sat_instance(num_variables, num_clauses, filename);
+
+    // Step 2: Run the PMLL algorithm (SAT Solver)
+    clock_t start_time = clock();
+    int **formula = load_cnf(filename);  // Load the generated CNF formula (to be implemented)
+    bool pml_result = PMLL_SAT_Solver(formula, num_clauses, num_variables);
+    clock_t end_time = clock();
+    double pml_time = (double)(end_time - start_time) / CLOCKS_PER_SEC;
+    int pml_iterations = get_pml_iterations();  // Assuming this function tracks the number of iterations
+    log_results("PMLL", filename, pml_result, pml_time, pml_iterations);
+
+    printf("PMLL Algorithm: %s (Time: %f seconds, Iterations: %d)\n", 
+            pml_result ? "Satisfiable" : "Unsatisfiable", pml_time, pml_iterations);
+
+    // Step 3: Run MiniSat solver and measure time
+    start_time = clock();
+    run_miniSat(filename);
+    end_time = clock();
+    double miniSat_time = (double)(end_time - start_time) / CLOCKS_PER_SEC;
+    log_results("MiniSat", filename, pml_result, miniSat_time, -1); // Iterations are not available from MiniSat directly
+
+    printf("MiniSat: Time: %f seconds\n", miniSat_time);
+
+    // Free resources
+    free_formula(formula);  // Implement memory cleanup
+}
+
+int main() {
+    // Set the number of variables and clauses for the test
+    int num_variables = 50;
+    int num_clauses = 150;
+
+    // Run the comparison tests
+    run_comparison_tests(num_variables, num_clauses);
+
+    return 0;
+}