cprover
multi_path_symex_checker.cpp
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1 /*******************************************************************\
2 
3 Module: Goto Checker using Bounded Model Checking
4 
5 Author: Daniel Kroening, Peter Schrammel
6 
7 \*******************************************************************/
8 
11 
13 
14 #include <chrono>
15 
17 
18 #include "bmc_util.h"
21 
23  const optionst &options,
24  ui_message_handlert &ui_message_handler,
25  abstract_goto_modelt &goto_model)
26  : multi_path_symex_only_checkert(options, ui_message_handler, goto_model),
27  equation_generated(false),
28  property_decider(options, ui_message_handler, equation, ns)
29 {
30 }
31 
33 operator()(propertiest &properties)
34 {
35  resultt result(resultt::progresst::DONE);
36 
37  // When the equation has been generated, we know all the properties.
38  // Have we got anything to check? Otherwise we return DONE.
40  return result;
41 
42  std::chrono::duration<double> solver_runtime(0);
43 
44  // we haven't got an equation yet
46  {
48 
50  options.get_option("symex-coverage-report"),
51  goto_model,
52  symex,
54 
55  update_properties(properties, result.updated_properties);
56 
57  // Have we got anything to check? Otherwise we return DONE.
58  if(!has_properties_to_check(properties))
59  return result;
60 
61  solver_runtime += prepare_property_decider(properties);
62 
63  equation_generated = true;
64  }
65 
66  run_property_decider(result, properties, solver_runtime);
67 
68  return result;
69 }
70 
71 std::chrono::duration<double>
73 {
74  std::chrono::duration<double> solver_runtime = ::prepare_property_decider(
76 
77  return solver_runtime;
78 }
79 
82  propertiest &properties,
83  std::chrono::duration<double> solver_runtime)
84 {
86  result, properties, property_decider, ui_message_handler, solver_runtime);
87 }
88 
90 {
91  goto_tracet goto_trace;
93  equation,
94  equation.SSA_steps.end(),
96  ns,
97  goto_trace);
98 
99  return goto_trace;
100 }
101 
103 {
104  if(options.get_bool_option("beautify"))
105  {
106  // NOLINTNEXTLINE(whitespace/braces)
109  equation);
110  }
111 
112  goto_tracet goto_trace;
115 
116  return goto_trace;
117 }
118 
121 {
122  goto_tracet goto_trace;
124  equation,
127  ns,
128  goto_trace);
129 
130  return goto_trace;
131 }
132 
134 {
135  return ns;
136 }
137 
139 {
141 }
142 
144  const goto_tracet &error_trace)
145 {
146  output_graphml(error_trace, ns, options);
147 }
148 
151 {
152  goto_symex_fault_localizert fault_localizer(
153  options,
155  equation,
157 
158  return fault_localizer(property_id);
159 }
160 
162 {
163  if(options.is_set("write-solver-stats-to"))
164  {
167  [](solver_hardnesst &hardness) { hardness.produce_report(); });
168  }
169 }
dstringt
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Definition: dstring.h:37
multi_path_symex_checkert::property_decider
goto_symex_property_decidert property_decider
Definition: multi_path_symex_checker.h:61
propertiest
std::unordered_map< irep_idt, property_infot > propertiest
A map of property IDs to property infos.
Definition: properties.h:75
multi_path_symex_checkert::output_proof
void output_proof() override
Definition: multi_path_symex_checker.cpp:138
build_goto_trace
void build_goto_trace(const symex_target_equationt &target, ssa_step_predicatet is_last_step_to_keep, const decision_proceduret &decision_procedure, const namespacet &ns, goto_tracet &goto_trace)
Build a trace by going through the steps of target and stopping after the step matching a given condi...
Definition: build_goto_trace.cpp:204
output_graphml
void output_graphml(const goto_tracet &goto_trace, const namespacet &ns, const optionst &options)
outputs an error witness in graphml format
Definition: bmc_util.cpp:107
ui_message_handlert
Definition: ui_message.h:20
hardness_collector.h
Capability to collect the statistics of the complexity of individual solver queries.
incremental_goto_checkert::resultt
Definition: incremental_goto_checker.h:41
optionst
Definition: options.h:23
incremental_goto_checkert::options
const optionst & options
Definition: incremental_goto_checker.h:89
optionst::get_option
const std::string get_option(const std::string &option) const
Definition: options.cpp:67
multi_path_symex_checkert::build_shortest_trace
goto_tracet build_shortest_trace() const override
Builds and returns the trace up to the first failed property.
Definition: multi_path_symex_checker.cpp:102
multi_path_symex_checkert::operator()
resultt operator()(propertiest &) override
Check whether the given properties with status NOT_CHECKED, UNKNOWN or properties newly discovered by...
Definition: multi_path_symex_checker.cpp:33
counterexample_beautificationt
Definition: counterexample_beautification.h:22
fault_location_infot
Definition: fault_localization_provider.h:23
multi_path_symex_only_checkert::equation
symex_target_equationt equation
Definition: multi_path_symex_only_checker.h:33
multi_path_symex_checkert::localize_fault
fault_location_infot localize_fault(const irep_idt &property_id) const override
Returns the most likely fault locations for the given FAILed property_id.
Definition: multi_path_symex_checker.cpp:150
goto_symex_fault_localizert
Definition: goto_symex_fault_localizer.h:26
multi_path_symex_checkert::equation_generated
bool equation_generated
Definition: multi_path_symex_checker.h:60
namespacet
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Definition: namespace.h:92
multi_path_symex_only_checkert::symex
symex_bmct symex
Definition: multi_path_symex_only_checker.h:36
multi_path_symex_only_checkert::ns
namespacet ns
Definition: multi_path_symex_only_checker.h:32
bmc_util.h
Bounded Model Checking Utilities.
has_properties_to_check
bool has_properties_to_check(const propertiest &properties)
Return true if there as a property with NOT_CHECKED or UNKNOWN status.
Definition: properties.cpp:174
multi_path_symex_checkert::output_error_witness
void output_error_witness(const goto_tracet &) override
Definition: multi_path_symex_checker.cpp:143
optionst::is_set
bool is_set(const std::string &option) const
N.B. opts.is_set("foo") does not imply opts.get_bool_option("foo")
Definition: options.cpp:62
multi_path_symex_only_checkert
Definition: multi_path_symex_only_checker.h:20
multi_path_symex_checker.h
Goto Checker using Multi-Path Symbolic Execution.
goto_symex_property_decidert::get_decision_procedure
decision_proceduret & get_decision_procedure() const
Returns the solver instance.
Definition: goto_symex_property_decider.cpp:108
goto_symex_property_decidert::get_stack_decision_procedure
stack_decision_proceduret & get_stack_decision_procedure() const
Returns the solver instance.
Definition: goto_symex_property_decider.cpp:114
multi_path_symex_checkert::prepare_property_decider
virtual std::chrono::duration< double > prepare_property_decider(propertiest &properties)
Prepare the property decider for solving.
Definition: multi_path_symex_checker.cpp:72
multi_path_symex_checkert::get_namespace
const namespacet & get_namespace() const override
Returns the namespace associated with the traces.
Definition: multi_path_symex_checker.cpp:133
multi_path_symex_only_checkert::goto_model
abstract_goto_modelt & goto_model
Definition: multi_path_symex_only_checker.h:30
multi_path_symex_only_checkert::update_properties
virtual void update_properties(propertiest &properties, std::unordered_set< irep_idt > &updated_properties)
Updates the properties from the equation and adds their property IDs to updated_properties.
Definition: multi_path_symex_only_checker.cpp:79
ssa_step_matches_failing_property
ssa_step_predicatet ssa_step_matches_failing_property(const irep_idt &property_id)
Returns a function that checks whether an SSA step is an assertion with property_id.
Definition: bmc_util.cpp:55
solver_hardnesst
A structure that facilitates collecting the complexity statistics from a decision procedure.
Definition: solver_hardness.h:45
multi_path_symex_checkert::report
void report() override
Additional reporting that may result from the underlying solver, no-op by default.
Definition: multi_path_symex_checker.cpp:161
symex_target_equationt::SSA_steps
SSA_stepst SSA_steps
Definition: symex_target_equation.h:257
optionst::get_bool_option
bool get_bool_option(const std::string &option) const
Definition: options.cpp:44
multi_path_symex_checkert::build_trace
goto_tracet build_trace(const irep_idt &) const override
Builds and returns the trace for the FAILed property with the given property_id.
Definition: multi_path_symex_checker.cpp:120
multi_path_symex_checkert::build_full_trace
goto_tracet build_full_trace() const override
Builds and returns the complete trace.
Definition: multi_path_symex_checker.cpp:89
output_coverage_report
void output_coverage_report(const std::string &cov_out, const abstract_goto_modelt &goto_model, const symex_bmct &symex, ui_message_handlert &ui_message_handler)
Output a coverage report as generated by symex_coveraget if cov_out is non-empty.
Definition: bmc_util.cpp:305
goto_tracet
Trace of a GOTO program.
Definition: goto_trace.h:171
boolbvt
Definition: boolbv.h:35
counterexample_beautification.h
Counterexample Beautification.
goto_symex_fault_localizer.h
Fault Localization for Goto Symex.
incremental_goto_checkert::resultt::updated_properties
std::unordered_set< irep_idt > updated_properties
Changed properties since the last call to incremental_goto_checkert::operator()
Definition: incremental_goto_checker.h:59
abstract_goto_modelt
Abstract interface to eager or lazy GOTO models.
Definition: abstract_goto_model.h:21
incremental_goto_checkert::ui_message_handler
ui_message_handlert & ui_message_handler
Definition: incremental_goto_checker.h:90
multi_path_symex_checkert::run_property_decider
virtual void run_property_decider(incremental_goto_checkert::resultt &result, propertiest &properties, std::chrono::duration< double > solver_runtime)
Run the property decider, which calls the SAT solver, and set the status of checked properties accord...
Definition: multi_path_symex_checker.cpp:80
with_solver_hardness
void with_solver_hardness(T &maybe_hardness_collector, hardness_collectort::handlert handler)
Definition: hardness_collector.h:32
multi_path_symex_checkert::multi_path_symex_checkert
multi_path_symex_checkert(const optionst &options, ui_message_handlert &ui_message_handler, abstract_goto_modelt &goto_model)
Definition: multi_path_symex_checker.cpp:22
multi_path_symex_only_checkert::generate_equation
virtual void generate_equation()
Generates the equation by running goto-symex.
Definition: multi_path_symex_only_checker.cpp:72