Add stop-on-fail verifier

Stops verification when the first property violation is found.

Author: peterschrammel

src/goto-checker/stop_on_fail_verifier.h

@@ -0,0 +1,77 @@
+/*******************************************************************\
+
+Module: Goto Verifier for stopping at the first failing property
+
+Author: Daniel Kroening, Peter Schrammel
+
+\*******************************************************************/
+
+/// \file
+/// Goto Verifier for stopping at the first failing property
+
+#ifndef CPROVER_GOTO_CHECKER_STOP_ON_FAIL_VERIFIER_H
+#define CPROVER_GOTO_CHECKER_STOP_ON_FAIL_VERIFIER_H
+
+#include "bmc_util.h"
+#include "goto_verifier.h"
+
+/// Stops when the first failing property is found.
+/// Requires an incremental goto checker that is a
+/// `goto_trace_providert` and `witness_providert`.
+template <class incremental_goto_checkerT>
+class stop_on_fail_verifiert : public goto_verifiert
+{
+public:
+  stop_on_fail_verifiert(
+    const optionst &options,
+    ui_message_handlert &ui_message_handler,
+    abstract_goto_modelt &goto_model)
+    : goto_verifiert(options, ui_message_handler),
+      goto_model(goto_model),
+      incremental_goto_checker(options, ui_message_handler, goto_model)
+  {
+    properties = std::move(initialize_properties(goto_model));
+  }
+
+  resultt operator()() override
+  {
+    (void)incremental_goto_checker(properties);
+    return determine_result(properties);
+  }
+
+  void report() override
+  {
+    switch(determine_result(properties))
+    {
+    case resultt::PASS:
+      report_success(ui_message_handler);
+      incremental_goto_checker.output_proof();
+      break;
+
+    case resultt::FAIL:
+    {
+      namespacet ns(goto_model.get_symbol_table());
+      goto_tracet goto_trace = incremental_goto_checker.build_trace();
+      output_error_trace(
+        goto_trace, ns, trace_optionst(options), ui_message_handler);
+      report_failure(ui_message_handler);
+      incremental_goto_checker.output_error_witness(goto_trace);
+      break;
+    }
+
+    case resultt::UNKNOWN:
+      report_inconclusive(ui_message_handler);
+      break;
+
+    case resultt::ERROR:
+      report_error(ui_message_handler);
+      break;
+    }
+  }
+
+protected:
+  abstract_goto_modelt &goto_model;
+  incremental_goto_checkerT incremental_goto_checker;
+};
+
+#endif // CPROVER_GOTO_CHECKER_STOP_ON_FAIL_VERIFIER_H