cprover
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multi_path_symex_checker.cpp
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1/*******************************************************************\
2
3Module: Goto Checker using Bounded Model Checking
4
5Author: Daniel Kroening, Peter Schrammel
6
7\*******************************************************************/
8
11
13
14#include <util/ui_message.h>
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
33operator()(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"),
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
71std::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;
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
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}
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:307
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
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:108
Bounded Model Checking Utilities.
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...
Abstract interface to eager or lazy GOTO models.
dstringt has one field, an unsigned integer no which is an index into a static table of strings.
Definition dstring.h:39
decision_proceduret & get_decision_procedure() const
Returns the solver instance.
stack_decision_proceduret & get_stack_decision_procedure() const
Returns the solver instance.
Trace of a GOTO program.
Definition goto_trace.h:177
ui_message_handlert & ui_message_handler
void report() override
Additional reporting that may result from the underlying solver, no-op by default.
resultt operator()(propertiest &) override
Check whether the given properties with status NOT_CHECKED, UNKNOWN or properties newly discovered by...
goto_tracet build_full_trace() const override
Builds and returns the complete trace.
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...
fault_location_infot localize_fault(const irep_idt &property_id) const override
Returns the most likely fault locations for the given FAILed property_id.
goto_symex_property_decidert property_decider
virtual std::chrono::duration< double > prepare_property_decider(propertiest &properties)
Prepare the property decider for solving.
multi_path_symex_checkert(const optionst &options, ui_message_handlert &ui_message_handler, abstract_goto_modelt &goto_model)
void output_error_witness(const goto_tracet &) override
goto_tracet build_shortest_trace() const override
Builds and returns the trace up to the first failed property.
const namespacet & get_namespace() const override
Returns the namespace associated with the traces.
goto_tracet build_trace(const irep_idt &) const override
Builds and returns the trace for the FAILed property with the given property_id.
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.
virtual void generate_equation()
Generates the equation by running goto-symex.
A namespacet is essentially one or two symbol tables bound together, to allow for symbol lookups in t...
Definition namespace.h:91
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
bool get_bool_option(const std::string &option) const
Definition options.cpp:44
const std::string get_option(const std::string &option) const
Definition options.cpp:67
Counterexample Beautification.
Fault Localization for Goto Symex.
Goto Checker using Multi-Path Symbolic Execution.
bool has_properties_to_check(const propertiest &properties)
Return true if there as a property with NOT_CHECKED or UNKNOWN status.
std::map< irep_idt, property_infot > propertiest
A map of property IDs to property infos.
Definition properties.h:76
static void with_solver_hardness(decision_proceduret &maybe_hardness_collector, std::function< void(solver_hardnesst &hardness)> handler)
std::unordered_set< irep_idt > updated_properties
Changed properties since the last call to incremental_goto_checkert::operator()
A structure that facilitates collecting the complexity statistics from a decision procedure.