/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 08:44:05,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 08:44:05,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 08:44:05,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 08:44:05,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 08:44:05,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 08:44:05,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 08:44:05,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 08:44:05,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 08:44:05,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 08:44:05,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 08:44:05,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 08:44:05,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 08:44:05,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 08:44:05,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 08:44:05,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 08:44:05,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 08:44:05,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 08:44:05,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 08:44:05,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 08:44:05,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 08:44:05,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 08:44:05,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 08:44:05,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 08:44:05,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 08:44:05,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 08:44:05,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 08:44:05,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 08:44:05,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 08:44:05,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 08:44:05,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 08:44:05,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 08:44:05,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 08:44:05,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 08:44:05,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 08:44:05,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 08:44:05,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 08:44:05,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 08:44:05,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 08:44:05,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 08:44:05,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 08:44:05,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 08:44:05,815 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 08:44:05,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 08:44:05,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 08:44:05,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 08:44:05,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 08:44:05,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 08:44:05,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 08:44:05,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 08:44:05,818 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 08:44:05,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 08:44:05,819 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 08:44:05,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 08:44:05,820 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 08:44:05,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 08:44:05,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 08:44:05,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 08:44:05,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 08:44:05,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:44:05,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 08:44:05,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 08:44:05,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 08:44:05,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 08:44:05,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 08:44:05,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 08:44:05,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 08:44:05,823 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 08:44:05,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 08:44:05,823 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 08:44:05,823 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 08:44:06,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 08:44:06,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 08:44:06,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 08:44:06,082 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 08:44:06,083 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 08:44:06,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-04-02 08:44:07,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 08:44:07,617 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 08:44:07,617 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-04-02 08:44:07,641 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8afd2c0e/336fa3c6dae344ee80da7aa4d4ea940e/FLAGb6fbd251b [2023-04-02 08:44:07,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8afd2c0e/336fa3c6dae344ee80da7aa4d4ea940e [2023-04-02 08:44:07,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 08:44:07,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 08:44:07,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 08:44:07,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 08:44:07,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 08:44:07,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:44:07" (1/1) ... [2023-04-02 08:44:07,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248dd39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:07, skipping insertion in model container [2023-04-02 08:44:07,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:44:07" (1/1) ... [2023-04-02 08:44:07,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 08:44:07,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 08:44:08,007 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2023-04-02 08:44:08,008 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2023-04-02 08:44:08,125 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2023-04-02 08:44:08,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:44:08,506 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 08:44:08,566 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1268] [2023-04-02 08:44:08,566 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1269-1270] [2023-04-02 08:44:08,577 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i[40937,40950] [2023-04-02 08:44:08,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:44:08,769 INFO L208 MainTranslator]: Completed translation [2023-04-02 08:44:08,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08 WrapperNode [2023-04-02 08:44:08,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 08:44:08,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 08:44:08,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 08:44:08,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 08:44:08,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 08:44:08,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 08:44:08,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 08:44:08,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 08:44:08,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (1/1) ... [2023-04-02 08:44:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:44:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:44:08,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 08:44:09,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 08:44:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 08:44:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 08:44:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 08:44:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-02 08:44:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 08:44:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_reprogram [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_irq_request [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_work_fn [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_eeprom_read [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_eeprom_write [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_read_ee [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_write_ee [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_readl [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_writel [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_validate [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_dev_release [2023-04-02 08:44:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_dev_create [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_init [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ff_exit [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_fmc_operations_1 [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-02 08:44:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure delayed_work_timer_fn [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 08:44:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2023-04-02 08:44:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-02 08:44:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2023-04-02 08:44:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2023-04-02 08:44:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_register_n [2023-04-02 08:44:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_device_unregister_n [2023-04-02 08:44:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2023-04-02 08:44:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2023-04-02 08:44:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 08:44:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-04-02 08:44:09,033 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-04-02 08:44:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-04-02 08:44:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 08:44:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 08:44:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-02 08:44:09,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 08:44:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2023-04-02 08:44:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-02 08:44:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-02 08:44:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-02 08:44:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-04-02 08:44:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-04-02 08:44:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 08:44:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 08:44:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_fmc_operations_1 [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2023-04-02 08:44:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 08:44:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-02 08:44:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-02 08:44:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-04-02 08:44:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-04-02 08:44:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_register_n [2023-04-02 08:44:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_device_unregister_n [2023-04-02 08:44:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure ff_reprogram [2023-04-02 08:44:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 08:44:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 08:44:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 08:44:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 08:44:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 08:44:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ff_irq_request [2023-04-02 08:44:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ff_dev_create [2023-04-02 08:44:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure ff_work_fn [2023-04-02 08:44:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure ff_eeprom_read [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_eeprom_write [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_read_ee [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_write_ee [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_readl [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_writel [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_validate [2023-04-02 08:44:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure ff_dev_release [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ff_init [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ff_exit [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-02 08:44:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 08:44:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 08:44:09,366 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 08:44:09,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 08:44:09,670 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-02 08:48:34,496 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 08:48:34,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 08:48:34,516 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 08:48:34,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:48:34 BoogieIcfgContainer [2023-04-02 08:48:34,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 08:48:34,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 08:48:34,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 08:48:34,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 08:48:34,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:44:07" (1/3) ... [2023-04-02 08:48:34,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cd3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:48:34, skipping insertion in model container [2023-04-02 08:48:34,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:44:08" (2/3) ... [2023-04-02 08:48:34,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cd3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:48:34, skipping insertion in model container [2023-04-02 08:48:34,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:48:34" (3/3) ... [2023-04-02 08:48:34,527 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--fmc--fmc-fakedev.ko-entry_point.cil.out.i [2023-04-02 08:48:34,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 08:48:34,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 08:48:34,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 08:48:34,619 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73cc342c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 08:48:34,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 08:48:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 277 states have (on average 1.2996389891696751) internal successors, (360), 286 states have internal predecessors, (360), 90 states have call successors, (90), 53 states have call predecessors, (90), 52 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-04-02 08:48:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-04-02 08:48:34,650 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:48:34,651 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:48:34,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:48:34,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:48:34,657 INFO L85 PathProgramCache]: Analyzing trace with hash -120826590, now seen corresponding path program 1 times [2023-04-02 08:48:34,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:48:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34434824] [2023-04-02 08:48:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:48:34,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:48:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:48:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:48:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:48:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:48:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 08:48:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 08:48:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 08:48:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 08:48:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:48:38,763 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 08:48:38,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:48:38,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34434824] [2023-04-02 08:48:38,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34434824] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:48:38,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:48:38,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 08:48:38,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994760276] [2023-04-02 08:48:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:48:38,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 08:48:38,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:48:38,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 08:48:38,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 08:48:38,823 INFO L87 Difference]: Start difference. First operand has 425 states, 277 states have (on average 1.2996389891696751) internal successors, (360), 286 states have internal predecessors, (360), 90 states have call successors, (90), 53 states have call predecessors, (90), 52 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-02 08:48:41,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:48:43,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []