/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 07:45:02,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 07:45:02,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 07:45:02,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 07:45:02,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 07:45:02,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 07:45:02,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 07:45:02,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 07:45:02,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 07:45:02,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 07:45:02,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 07:45:02,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 07:45:02,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 07:45:02,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 07:45:02,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 07:45:02,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 07:45:02,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 07:45:02,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 07:45:02,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 07:45:02,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 07:45:02,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 07:45:02,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 07:45:02,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 07:45:02,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 07:45:02,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 07:45:02,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 07:45:02,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 07:45:02,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 07:45:02,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 07:45:02,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 07:45:02,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 07:45:02,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 07:45:02,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 07:45:02,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 07:45:02,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 07:45:02,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 07:45:02,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 07:45:02,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 07:45:02,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 07:45:02,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 07:45:02,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 07:45:02,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 07:45:02,809 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 07:45:02,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 07:45:02,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 07:45:02,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 07:45:02,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 07:45:02,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 07:45:02,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 07:45:02,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 07:45:02,811 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 07:45:02,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 07:45:02,812 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 07:45:02,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 07:45:02,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 07:45:02,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 07:45:02,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 07:45:02,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 07:45:02,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:45:02,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 07:45:02,814 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 07:45:03,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 07:45:03,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 07:45:03,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 07:45:03,024 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 07:45:03,024 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 07:45:03,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2023-04-02 07:45:04,070 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 07:45:04,387 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 07:45:04,387 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2023-04-02 07:45:04,420 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66fc3e93/2d1e1fbf345b487dbb64b522b5df80b2/FLAGc7e08f876 [2023-04-02 07:45:04,435 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b66fc3e93/2d1e1fbf345b487dbb64b522b5df80b2 [2023-04-02 07:45:04,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 07:45:04,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 07:45:04,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 07:45:04,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 07:45:04,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 07:45:04,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:45:04" (1/1) ... [2023-04-02 07:45:04,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449c0328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:04, skipping insertion in model container [2023-04-02 07:45:04,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 07:45:04" (1/1) ... [2023-04-02 07:45:04,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 07:45:04,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 07:45:05,749 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i[158757,158770] [2023-04-02 07:45:05,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:45:05,835 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 07:45:06,005 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i[158757,158770] [2023-04-02 07:45:06,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 07:45:06,105 WARN L667 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:06,105 WARN L667 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:06,105 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 07:45:06,110 INFO L208 MainTranslator]: Completed translation [2023-04-02 07:45:06,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06 WrapperNode [2023-04-02 07:45:06,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 07:45:06,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 07:45:06,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 07:45:06,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 07:45:06,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 07:45:06,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 07:45:06,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 07:45:06,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 07:45:06,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (1/1) ... [2023-04-02 07:45:06,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 07:45:06,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 07:45:06,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 07:45:06,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 07:45:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 07:45:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 07:45:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2023-04-02 07:45:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-02 07:45:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-02 07:45:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2023-04-02 07:45:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2023-04-02 07:45:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2023-04-02 07:45:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2023-04-02 07:45:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2023-04-02 07:45:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2023-04-02 07:45:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2023-04-02 07:45:06,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2023-04-02 07:45:06,482 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2023-04-02 07:45:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 07:45:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2023-04-02 07:45:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-02 07:45:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-02 07:45:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-02 07:45:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-02 07:45:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-02 07:45:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:45:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2023-04-02 07:45:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-04-02 07:45:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-04-02 07:45:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2023-04-02 07:45:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 07:45:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2023-04-02 07:45:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 07:45:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 07:45:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-02 07:45:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-04-02 07:45:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2023-04-02 07:45:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-02 07:45:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-02 07:45:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-02 07:45:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 07:45:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-02 07:45:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 07:45:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-04-02 07:45:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2023-04-02 07:45:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2023-04-02 07:45:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 07:45:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2023-04-02 07:45:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2023-04-02 07:45:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 07:45:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 07:45:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 07:45:07,138 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 07:45:07,142 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 07:45:07,514 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-02 07:45:22,739 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 07:45:22,762 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 07:45:22,763 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 07:45:22,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:45:22 BoogieIcfgContainer [2023-04-02 07:45:22,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 07:45:22,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 07:45:22,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 07:45:22,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 07:45:22,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 07:45:04" (1/3) ... [2023-04-02 07:45:22,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c252706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:45:22, skipping insertion in model container [2023-04-02 07:45:22,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 07:45:06" (2/3) ... [2023-04-02 07:45:22,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c252706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 07:45:22, skipping insertion in model container [2023-04-02 07:45:22,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 07:45:22" (3/3) ... [2023-04-02 07:45:22,775 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-2.i [2023-04-02 07:45:22,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 07:45:22,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 07:45:22,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 07:45:22,883 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@732f38ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 07:45:22,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 07:45:22,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 1687 states, 1083 states have (on average 1.3388734995383196) internal successors, (1450), 1130 states have internal predecessors, (1450), 447 states have call successors, (447), 153 states have call predecessors, (447), 152 states have return successors, (446), 441 states have call predecessors, (446), 446 states have call successors, (446) [2023-04-02 07:45:22,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-04-02 07:45:22,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:45:22,903 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] [2023-04-02 07:45:22,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:45:22,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:45:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1388046080, now seen corresponding path program 1 times [2023-04-02 07:45:22,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:45:22,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967451644] [2023-04-02 07:45:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:45:22,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:45:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:45:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:24,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:45:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:45:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 07:45:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:45:24,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:45:24,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:45:24,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967451644] [2023-04-02 07:45:24,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967451644] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:45:24,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:45:24,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:45:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795110894] [2023-04-02 07:45:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:45:24,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:45:24,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:45:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:45:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:45:24,480 INFO L87 Difference]: Start difference. First operand has 1687 states, 1083 states have (on average 1.3388734995383196) internal successors, (1450), 1130 states have internal predecessors, (1450), 447 states have call successors, (447), 153 states have call predecessors, (447), 152 states have return successors, (446), 441 states have call predecessors, (446), 446 states have call successors, (446) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:45:27,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:45:29,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:00,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:46:00,229 INFO L93 Difference]: Finished difference Result 5695 states and 8417 transitions. [2023-04-02 07:46:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:46:00,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2023-04-02 07:46:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:46:00,270 INFO L225 Difference]: With dead ends: 5695 [2023-04-02 07:46:00,270 INFO L226 Difference]: Without dead ends: 4034 [2023-04-02 07:46:00,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:46:00,289 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 5428 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 4949 mSolverCounterSat, 3249 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5801 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3249 IncrementalHoareTripleChecker+Valid, 4949 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2023-04-02 07:46:00,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5801 Valid, 2338 Invalid, 8200 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3249 Valid, 4949 Invalid, 2 Unknown, 0 Unchecked, 32.9s Time] [2023-04-02 07:46:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2023-04-02 07:46:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 2943. [2023-04-02 07:46:01,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 1885 states have (on average 1.3209549071618036) internal successors, (2490), 1948 states have internal predecessors, (2490), 804 states have call successors, (804), 259 states have call predecessors, (804), 253 states have return successors, (792), 780 states have call predecessors, (792), 789 states have call successors, (792) [2023-04-02 07:46:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 4086 transitions. [2023-04-02 07:46:01,029 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 4086 transitions. Word has length 26 [2023-04-02 07:46:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:46:01,030 INFO L495 AbstractCegarLoop]: Abstraction has 2943 states and 4086 transitions. [2023-04-02 07:46:01,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:46:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 4086 transitions. [2023-04-02 07:46:01,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-02 07:46:01,031 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:46:01,031 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] [2023-04-02 07:46:01,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 07:46:01,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:46:01,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:46:01,032 INFO L85 PathProgramCache]: Analyzing trace with hash -82218907, now seen corresponding path program 1 times [2023-04-02 07:46:01,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:46:01,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117756123] [2023-04-02 07:46:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:46:01,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:46:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:02,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:46:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:46:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:46:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 07:46:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:46:02,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:46:02,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117756123] [2023-04-02 07:46:02,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117756123] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:46:02,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:46:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 07:46:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392957674] [2023-04-02 07:46:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:46:02,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 07:46:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:46:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 07:46:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 07:46:02,242 INFO L87 Difference]: Start difference. First operand 2943 states and 4086 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:46:04,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:06,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:46:43,736 INFO L93 Difference]: Finished difference Result 9395 states and 13671 transitions. [2023-04-02 07:46:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 07:46:43,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 27 [2023-04-02 07:46:43,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:46:43,789 INFO L225 Difference]: With dead ends: 9395 [2023-04-02 07:46:43,789 INFO L226 Difference]: Without dead ends: 7978 [2023-04-02 07:46:43,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 07:46:43,798 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 4200 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 7082 mSolverCounterSat, 2261 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 9345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2261 IncrementalHoareTripleChecker+Valid, 7082 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2023-04-02 07:46:43,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4582 Valid, 3191 Invalid, 9345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2261 Valid, 7082 Invalid, 2 Unknown, 0 Unchecked, 37.7s Time] [2023-04-02 07:46:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2023-04-02 07:46:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 5819. [2023-04-02 07:46:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5819 states, 3738 states have (on average 1.3218298555377208) internal successors, (4941), 3857 states have internal predecessors, (4941), 1583 states have call successors, (1583), 508 states have call predecessors, (1583), 497 states have return successors, (1565), 1542 states have call predecessors, (1565), 1557 states have call successors, (1565) [2023-04-02 07:46:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5819 states to 5819 states and 8089 transitions. [2023-04-02 07:46:45,036 INFO L78 Accepts]: Start accepts. Automaton has 5819 states and 8089 transitions. Word has length 27 [2023-04-02 07:46:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:46:45,037 INFO L495 AbstractCegarLoop]: Abstraction has 5819 states and 8089 transitions. [2023-04-02 07:46:45,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 07:46:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5819 states and 8089 transitions. [2023-04-02 07:46:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-02 07:46:45,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:46:45,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:46:45,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 07:46:45,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:46:45,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:46:45,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1448111878, now seen corresponding path program 1 times [2023-04-02 07:46:45,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:46:45,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053329069] [2023-04-02 07:46:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:46:45,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:46:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:46:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:46:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:46:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 07:46:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:46:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 07:46:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:46:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 07:46:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 07:46:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:46:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:46:46,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:46:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053329069] [2023-04-02 07:46:46,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053329069] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:46:46,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:46:46,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 07:46:46,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495536392] [2023-04-02 07:46:46,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:46:46,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 07:46:46,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:46:46,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 07:46:46,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 07:46:46,496 INFO L87 Difference]: Start difference. First operand 5819 states and 8089 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 07:46:48,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:51,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:46:53,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 07:47:31,590 INFO L93 Difference]: Finished difference Result 17290 states and 25338 transitions. [2023-04-02 07:47:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 07:47:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 59 [2023-04-02 07:47:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 07:47:31,699 INFO L225 Difference]: With dead ends: 17290 [2023-04-02 07:47:31,699 INFO L226 Difference]: Without dead ends: 15852 [2023-04-02 07:47:31,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 07:47:31,719 INFO L413 NwaCegarLoop]: 1194 mSDtfsCounter, 5100 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 7596 mSolverCounterSat, 2841 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5501 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 10440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2841 IncrementalHoareTripleChecker+Valid, 7596 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.1s IncrementalHoareTripleChecker+Time [2023-04-02 07:47:31,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5501 Valid, 2576 Invalid, 10440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2841 Valid, 7596 Invalid, 3 Unknown, 0 Unchecked, 40.1s Time] [2023-04-02 07:47:31,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15852 states. [2023-04-02 07:47:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15852 to 11476. [2023-04-02 07:47:34,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11476 states, 7387 states have (on average 1.323676729389468) internal successors, (9778), 7619 states have internal predecessors, (9778), 3115 states have call successors, (3115), 989 states have call predecessors, (3115), 973 states have return successors, (3093), 3043 states have call predecessors, (3093), 3073 states have call successors, (3093) [2023-04-02 07:47:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11476 states to 11476 states and 15986 transitions. [2023-04-02 07:47:34,208 INFO L78 Accepts]: Start accepts. Automaton has 11476 states and 15986 transitions. Word has length 59 [2023-04-02 07:47:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 07:47:34,208 INFO L495 AbstractCegarLoop]: Abstraction has 11476 states and 15986 transitions. [2023-04-02 07:47:34,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 07:47:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 11476 states and 15986 transitions. [2023-04-02 07:47:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 07:47:34,211 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 07:47:34,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 07:47:34,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 07:47:34,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 07:47:34,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 07:47:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1313122131, now seen corresponding path program 1 times [2023-04-02 07:47:34,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 07:47:34,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693638659] [2023-04-02 07:47:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 07:47:34,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 07:47:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 07:47:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 07:47:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 07:47:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 07:47:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:36,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:47:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:47:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 07:47:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:47:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 07:47:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 07:47:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 07:47:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 07:47:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 07:47:37,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 07:47:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693638659] [2023-04-02 07:47:37,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693638659] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 07:47:37,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 07:47:37,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-04-02 07:47:37,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701585306] [2023-04-02 07:47:37,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 07:47:37,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-02 07:47:37,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 07:47:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-02 07:47:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2023-04-02 07:47:37,839 INFO L87 Difference]: Start difference. First operand 11476 states and 15986 transitions. Second operand has 18 states, 16 states have (on average 2.4375) internal successors, (39), 10 states have internal predecessors, (39), 4 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-02 07:47:40,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:42,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:44,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:46,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:48,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:50,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:52,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:54,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:57,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:47:59,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:01,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:03,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:05,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:07,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 07:48:09,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []