/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 13:29:38,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 13:29:38,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 13:29:38,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 13:29:38,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 13:29:38,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 13:29:38,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 13:29:38,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 13:29:38,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 13:29:38,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 13:29:38,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 13:29:38,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 13:29:38,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 13:29:38,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 13:29:38,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 13:29:38,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 13:29:38,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 13:29:38,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 13:29:38,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 13:29:38,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 13:29:38,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 13:29:38,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 13:29:38,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 13:29:38,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 13:29:38,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 13:29:38,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 13:29:38,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 13:29:38,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 13:29:38,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 13:29:38,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 13:29:38,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 13:29:38,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 13:29:38,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 13:29:38,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 13:29:38,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 13:29:38,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 13:29:38,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 13:29:38,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 13:29:38,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 13:29:38,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 13:29:38,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 13:29:38,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 13:29:38,862 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 13:29:38,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 13:29:38,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 13:29:38,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 13:29:38,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 13:29:38,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 13:29:38,863 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 13:29:38,863 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 13:29:38,863 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 13:29:38,864 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 13:29:38,864 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 13:29:38,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 13:29:38,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 13:29:38,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:29:38,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 13:29:38,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 13:29:39,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 13:29:39,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 13:29:39,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 13:29:39,050 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 13:29:39,051 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 13:29:39,052 INFO L432 ainManager$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--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2023-04-01 13:29:40,062 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 13:29:40,517 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 13:29:40,517 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--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2023-04-01 13:29:40,555 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a92d58e/20a743b7bd934e87848cac2feb3e92f8/FLAGd8efd1afa [2023-04-01 13:29:40,570 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20a92d58e/20a743b7bd934e87848cac2feb3e92f8 [2023-04-01 13:29:40,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 13:29:40,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 13:29:40,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 13:29:40,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 13:29:40,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 13:29:40,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:29:40" (1/1) ... [2023-04-01 13:29:40,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2acb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:40, skipping insertion in model container [2023-04-01 13:29:40,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:29:40" (1/1) ... [2023-04-01 13:29:40,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 13:29:40,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 13:29:41,115 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6069] [2023-04-01 13:29:41,116 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6070-6071] [2023-04-01 13:29:41,373 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--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i[181805,181818] [2023-04-01 13:29:42,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:29:42,095 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 13:29:42,201 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6069] [2023-04-01 13:29:42,202 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6070-6071] [2023-04-01 13:29:42,211 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--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i[181805,181818] [2023-04-01 13:29:42,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:29:42,424 INFO L208 MainTranslator]: Completed translation [2023-04-01 13:29:42,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42 WrapperNode [2023-04-01 13:29:42,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 13:29:42,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 13:29:42,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 13:29:42,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 13:29:42,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 13:29:42,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 13:29:42,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 13:29:42,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 13:29:42,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (1/1) ... [2023-04-01 13:29:42,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:29:42,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:29:42,761 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) [2023-04-01 13:29:42,802 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 [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 13:29:42,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 13:29:42,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 13:29:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2023-04-01 13:29:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_20 [2023-04-01 13:29:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-01 13:29:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2023-04-01 13:29:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2023-04-01 13:29:42,814 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure symbolic [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_start_transfer [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_complete [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure set_led_bit [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_led [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcusb_l2l1B [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_ph_info [2023-04-01 13:29:42,815 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcusb_l2l1D [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_l1callback [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_ctrl [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_dctrl [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state_te [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state_nt [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_setup_bch [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_ph_command [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_rx_frame [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_isoc_urb [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_iso_complete [2023-04-01 13:29:42,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_int_complete [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_iso_complete [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure start_isoc_chain [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_iso_gracefull [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_int_gracefull [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure start_int_fifo [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setPortMode [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_hfcsusb [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_start_endpoint [2023-04-01 13:29:42,817 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_stop_endpoint [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hfcsusb [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure release_hw [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivate_bchannel [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_bctrl [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_instance [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_probe [2023-04-01 13:29:42,818 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_disconnect [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_drv_init [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_drv_exit [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_22 [2023-04-01 13:29:42,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_24 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_26 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_27 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_28 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_29 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_30 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_31 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_32 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_33 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_34 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_35 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_36 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_37 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_38 [2023-04-01 13:29:42,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_39 [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_40 [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_41 [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_42 [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_43 [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-01 13:29:42,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-01 13:29:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2023-04-01 13:29:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 13:29:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-04-01 13:29:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 13:29:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 13:29:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 13:29:42,828 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_get_rxbuf [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_senddata [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure create_l1 [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure dchannel_senddata [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_bframe [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_dframe [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_event [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_clear_bchannel [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_ctrl_bchannel [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2023-04-01 13:29:42,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Bchannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Echannel [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-01 13:29:42,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 13:29:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 13:29:42,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_return_address [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 13:29:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 13:29:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 13:29:42,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 13:29:42,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_42 [2023-04-01 13:29:42,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 13:29:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_43 [2023-04-01 13:29:42,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_37 [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_39 [2023-04-01 13:29:42,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_41 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_33 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_34 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_35 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_36 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_38 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_40 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_20 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_24 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_32 [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy [2023-04-01 13:29:42,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_26 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_22 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_30 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_31 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_27 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_28 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_29 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure create_l1 [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure l1_event [2023-04-01 13:29:42,840 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_clear_bchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_ctrl_bchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure dchannel_senddata [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_senddata [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_get_rxbuf [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Echannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Bchannel [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_bframe [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_dframe [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure symbolic [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_ph_command [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure release_hw [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure reset_hfcsusb [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure setPortMode [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_start_endpoint [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_stop_endpoint [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_setup_bch [2023-04-01 13:29:42,841 INFO L130 BoogieDeclarations]: Found specification of procedure deactivate_bchannel [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_ph_info [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_start_transfer [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_complete [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure set_led_bit [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure handle_led [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfcusb_l2l1B [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfcusb_l2l1D [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_l1callback [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure channel_ctrl [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_dctrl [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state_te [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state_nt [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_rx_frame [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure fill_isoc_urb [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure rx_iso_complete [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 13:29:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure rx_int_complete [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure tx_iso_complete [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure start_isoc_chain [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure stop_iso_gracefull [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure stop_int_gracefull [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure start_int_fifo [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hfcsusb [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_bctrl [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure setup_instance [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_probe [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_disconnect [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_drv_init [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_drv_exit [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 13:29:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 13:29:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 13:29:43,369 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 13:29:43,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 13:29:43,657 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 13:29:46,471 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 13:29:47,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 13:29:47,692 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-01 13:29:47,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:29:47 BoogieIcfgContainer [2023-04-01 13:29:47,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 13:29:47,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 13:29:47,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 13:29:47,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 13:29:47,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:29:40" (1/3) ... [2023-04-01 13:29:47,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae6719e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:29:47, skipping insertion in model container [2023-04-01 13:29:47,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:29:42" (2/3) ... [2023-04-01 13:29:47,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae6719e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:29:47, skipping insertion in model container [2023-04-01 13:29:47,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:29:47" (3/3) ... [2023-04-01 13:29:47,700 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2023-04-01 13:29:47,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 13:29:47,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 13:29:47,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 13:29:47,773 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=FINITE_AUTOMATA, 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;@151aaf4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 13:29:47,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 13:29:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 1585 states, 959 states have (on average 1.3034410844629822) internal successors, (1250), 998 states have internal predecessors, (1250), 457 states have call successors, (457), 145 states have call predecessors, (457), 144 states have return successors, (454), 443 states have call predecessors, (454), 454 states have call successors, (454) [2023-04-01 13:29:47,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 13:29:47,790 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:29:47,791 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 13:29:47,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:29:47,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:29:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1413676851, now seen corresponding path program 1 times [2023-04-01 13:29:47,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:29:47,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581387298] [2023-04-01 13:29:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:29:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:48,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 13:29:48,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:29:48,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581387298] [2023-04-01 13:29:48,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581387298] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:29:48,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:29:48,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:29:48,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274491557] [2023-04-01 13:29:48,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:29:48,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:29:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:29:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:29:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:48,231 INFO L87 Difference]: Start difference. First operand has 1585 states, 959 states have (on average 1.3034410844629822) internal successors, (1250), 998 states have internal predecessors, (1250), 457 states have call successors, (457), 145 states have call predecessors, (457), 144 states have return successors, (454), 443 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 13:29:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:29:48,777 INFO L93 Difference]: Finished difference Result 1186 states and 1563 transitions. [2023-04-01 13:29:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:29:48,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2023-04-01 13:29:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:29:48,803 INFO L225 Difference]: With dead ends: 1186 [2023-04-01 13:29:48,804 INFO L226 Difference]: Without dead ends: 584 [2023-04-01 13:29:48,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:48,813 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 69 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 13:29:48,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1273 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 13:29:48,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-04-01 13:29:48,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 576. [2023-04-01 13:29:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 348 states have (on average 1.2672413793103448) internal successors, (441), 353 states have internal predecessors, (441), 153 states have call successors, (153), 76 states have call predecessors, (153), 74 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2023-04-01 13:29:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 745 transitions. [2023-04-01 13:29:48,883 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 745 transitions. Word has length 43 [2023-04-01 13:29:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:29:48,884 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 745 transitions. [2023-04-01 13:29:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 13:29:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 745 transitions. [2023-04-01 13:29:48,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-01 13:29:48,886 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:29:48,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:29:48,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 13:29:48,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:29:48,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:29:48,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1352109545, now seen corresponding path program 1 times [2023-04-01 13:29:48,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:29:48,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811081184] [2023-04-01 13:29:48,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:48,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:29:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:49,137 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 13:29:49,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:29:49,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811081184] [2023-04-01 13:29:49,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811081184] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:29:49,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:29:49,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:29:49,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513147669] [2023-04-01 13:29:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:29:49,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:29:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:29:49,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:29:49,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:49,140 INFO L87 Difference]: Start difference. First operand 576 states and 745 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 13:29:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:29:49,472 INFO L93 Difference]: Finished difference Result 1136 states and 1477 transitions. [2023-04-01 13:29:49,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:29:49,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 73 [2023-04-01 13:29:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:29:49,476 INFO L225 Difference]: With dead ends: 1136 [2023-04-01 13:29:49,476 INFO L226 Difference]: Without dead ends: 583 [2023-04-01 13:29:49,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:49,478 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 3 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 13:29:49,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1241 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 13:29:49,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-04-01 13:29:49,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2023-04-01 13:29:49,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 352 states have (on average 1.2670454545454546) internal successors, (446), 357 states have internal predecessors, (446), 154 states have call successors, (154), 76 states have call predecessors, (154), 74 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-04-01 13:29:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 752 transitions. [2023-04-01 13:29:49,498 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 752 transitions. Word has length 73 [2023-04-01 13:29:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:29:49,498 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 752 transitions. [2023-04-01 13:29:49,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 13:29:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 752 transitions. [2023-04-01 13:29:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-04-01 13:29:49,500 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:29:49,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:29:49,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 13:29:49,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:29:49,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:29:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1018960704, now seen corresponding path program 1 times [2023-04-01 13:29:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:29:49,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71238180] [2023-04-01 13:29:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:49,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:29:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 13:29:49,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:29:49,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71238180] [2023-04-01 13:29:49,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71238180] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:29:49,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:29:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:29:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112127521] [2023-04-01 13:29:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:29:49,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:29:49,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:29:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:29:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:49,655 INFO L87 Difference]: Start difference. First operand 581 states and 752 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-01 13:29:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:29:49,994 INFO L93 Difference]: Finished difference Result 1155 states and 1505 transitions. [2023-04-01 13:29:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:29:49,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 75 [2023-04-01 13:29:49,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:29:49,997 INFO L225 Difference]: With dead ends: 1155 [2023-04-01 13:29:49,997 INFO L226 Difference]: Without dead ends: 597 [2023-04-01 13:29:49,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:50,000 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 15 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 13:29:50,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1246 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 13:29:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2023-04-01 13:29:50,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 586. [2023-04-01 13:29:50,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 357 states have (on average 1.26890756302521) internal successors, (453), 362 states have internal predecessors, (453), 154 states have call successors, (154), 76 states have call predecessors, (154), 74 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-04-01 13:29:50,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 759 transitions. [2023-04-01 13:29:50,017 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 759 transitions. Word has length 75 [2023-04-01 13:29:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:29:50,017 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 759 transitions. [2023-04-01 13:29:50,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-01 13:29:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 759 transitions. [2023-04-01 13:29:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-01 13:29:50,020 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:29:50,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-04-01 13:29:50,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 13:29:50,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:29:50,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:29:50,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1820276745, now seen corresponding path program 1 times [2023-04-01 13:29:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:29:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172951029] [2023-04-01 13:29:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:29:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:50,225 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 13:29:50,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:29:50,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172951029] [2023-04-01 13:29:50,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172951029] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:29:50,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:29:50,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:29:50,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375920872] [2023-04-01 13:29:50,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:29:50,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:29:50,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:29:50,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:29:50,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:50,227 INFO L87 Difference]: Start difference. First operand 586 states and 759 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-01 13:29:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:29:50,775 INFO L93 Difference]: Finished difference Result 1196 states and 1567 transitions. [2023-04-01 13:29:50,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:29:50,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 92 [2023-04-01 13:29:50,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:29:50,779 INFO L225 Difference]: With dead ends: 1196 [2023-04-01 13:29:50,779 INFO L226 Difference]: Without dead ends: 633 [2023-04-01 13:29:50,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:29:50,782 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 42 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 13:29:50,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1256 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 13:29:50,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-04-01 13:29:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 587. [2023-04-01 13:29:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 358 states have (on average 1.2681564245810055) internal successors, (454), 363 states have internal predecessors, (454), 154 states have call successors, (154), 76 states have call predecessors, (154), 74 states have return successors, (152), 152 states have call predecessors, (152), 152 states have call successors, (152) [2023-04-01 13:29:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 760 transitions. [2023-04-01 13:29:50,796 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 760 transitions. Word has length 92 [2023-04-01 13:29:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:29:50,797 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 760 transitions. [2023-04-01 13:29:50,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-04-01 13:29:50,797 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 760 transitions. [2023-04-01 13:29:50,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-01 13:29:50,798 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:29:50,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 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] [2023-04-01 13:29:50,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 13:29:50,798 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:29:50,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:29:50,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2088252428, now seen corresponding path program 1 times [2023-04-01 13:29:50,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:29:50,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877845192] [2023-04-01 13:29:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:50,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:29:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 13:29:51,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:29:51,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877845192] [2023-04-01 13:29:51,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877845192] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 13:29:51,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521650544] [2023-04-01 13:29:51,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:29:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 13:29:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:29:51,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 13:29:51,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 13:29:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:29:51,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 3306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 13:29:51,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 13:29:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 13:29:51,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 13:29:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 13:29:51,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521650544] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 13:29:51,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1766564228] [2023-04-01 13:29:52,010 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2023-04-01 13:29:52,011 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 13:29:52,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 13:29:52,016 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 13:29:52,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs