/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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 08:57:11,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 08:57:11,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 08:57:11,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 08:57:11,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 08:57:11,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 08:57:11,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 08:57:11,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 08:57:11,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 08:57:11,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 08:57:11,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 08:57:11,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 08:57:11,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 08:57:11,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 08:57:11,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 08:57:11,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 08:57:11,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 08:57:11,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 08:57:11,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 08:57:11,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 08:57:11,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 08:57:11,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 08:57:11,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 08:57:11,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 08:57:11,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 08:57:11,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 08:57:11,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 08:57:11,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 08:57:11,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 08:57:11,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 08:57:11,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 08:57:11,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 08:57:11,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 08:57:11,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 08:57:11,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 08:57:11,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 08:57:11,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 08:57:11,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 08:57:11,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 08:57:11,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 08:57:11,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 08:57:11,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 08:57:11,986 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 08:57:11,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 08:57:11,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 08:57:11,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 08:57:11,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 08:57:11,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 08:57:11,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 08:57:11,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 08:57:11,988 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 08:57:11,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 08:57:11,989 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 08:57:11,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:57:11,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 08:57:11,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 08:57:11,991 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 08:57:12,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 08:57:12,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 08:57:12,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 08:57:12,197 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 08:57:12,198 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 08:57:12,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-04-02 08:57:13,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 08:57:13,635 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 08:57:13,635 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-04-02 08:57:13,661 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48f44705/4f73861db6dd46aaac1e0494f9e2dc49/FLAG48d48d964 [2023-04-02 08:57:13,675 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48f44705/4f73861db6dd46aaac1e0494f9e2dc49 [2023-04-02 08:57:13,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 08:57:13,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 08:57:13,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 08:57:13,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 08:57:13,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 08:57:13,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:57:13" (1/1) ... [2023-04-02 08:57:13,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2bd5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:13, skipping insertion in model container [2023-04-02 08:57:13,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:57:13" (1/1) ... [2023-04-02 08:57:13,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 08:57:13,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 08:57:14,272 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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2023-04-02 08:57:14,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:57:14,715 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 08:57:14,758 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-validator-v0.6/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i[88044,88057] [2023-04-02 08:57:14,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:57:14,912 WARN L667 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 08:57:14,912 WARN L667 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 08:57:14,912 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 08:57:14,917 INFO L208 MainTranslator]: Completed translation [2023-04-02 08:57:14,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14 WrapperNode [2023-04-02 08:57:14,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 08:57:14,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 08:57:14,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 08:57:14,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 08:57:14,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:14,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:14,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:14,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 08:57:15,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 08:57:15,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 08:57:15,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 08:57:15,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (1/1) ... [2023-04-02 08:57:15,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:57:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:57:15,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 08:57:15,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 08:57:15,336 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-04-02 08:57:15,337 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-02 08:57:15,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-04-02 08:57:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2023-04-02 08:57:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2023-04-02 08:57:15,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2023-04-02 08:57:15,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2023-04-02 08:57:15,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_gadget_driver_1 [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 08:57:15,344 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_5 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_6 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_7 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_9 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_10 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_13 [2023-04-02 08:57:15,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_14 [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-02 08:57:15,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2023-04-02 08:57:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2023-04-02 08:57:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2023-04-02 08:57:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2023-04-02 08:57:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2023-04-02 08:57:15,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2023-04-02 08:57:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2023-04-02 08:57:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 08:57:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2023-04-02 08:57:15,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-02 08:57:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-02 08:57:15,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 08:57:15,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-02 08:57:15,356 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-02 08:57:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2023-04-02 08:57:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 08:57:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 08:57:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-02 08:57:15,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_prefetch [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2023-04-02 08:57:15,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-02 08:57:15,358 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-02 08:57:15,359 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-04-02 08:57:15,360 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 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2023-04-02 08:57:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 08:57:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 08:57:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 08:57:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 08:57:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 08:57:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-02 08:57:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-02 08:57:15,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_gadget_driver_1 [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_10 [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-04-02 08:57:15,365 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_7 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_13 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_6 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_5 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-02 08:57:15,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_9 [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_14 [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 08:57:15,367 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2023-04-02 08:57:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 08:57:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 08:57:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 08:57:15,869 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 08:57:15,873 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 08:57:16,153 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-02 08:57:27,289 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-02 08:57:30,020 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 08:57:30,039 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 08:57:30,039 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 08:57:30,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:57:30 BoogieIcfgContainer [2023-04-02 08:57:30,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 08:57:30,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 08:57:30,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 08:57:30,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 08:57:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:57:13" (1/3) ... [2023-04-02 08:57:30,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f0a5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:57:30, skipping insertion in model container [2023-04-02 08:57:30,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:57:14" (2/3) ... [2023-04-02 08:57:30,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f0a5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:57:30, skipping insertion in model container [2023-04-02 08:57:30,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:57:30" (3/3) ... [2023-04-02 08:57:30,048 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point.cil.out.i [2023-04-02 08:57:30,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 08:57:30,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 08:57:30,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 08:57:30,131 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;@2e6bbdfa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 08:57:30,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 08:57:30,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 1762 states, 1142 states have (on average 1.341506129597198) internal successors, (1532), 1192 states have internal predecessors, (1532), 457 states have call successors, (457), 159 states have call predecessors, (457), 157 states have return successors, (452), 447 states have call predecessors, (452), 452 states have call successors, (452) [2023-04-02 08:57:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 08:57:30,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:57:30,160 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:57:30,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:57:30,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:57:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1789156612, now seen corresponding path program 1 times [2023-04-02 08:57:30,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:57:30,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183467346] [2023-04-02 08:57:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:57:30,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:57:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:57:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:57:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:57:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:57:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 08:57:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 08:57:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 08:57:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 08:57:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 08:57:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 08:57:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:57:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 08:57:31,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:57:31,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183467346] [2023-04-02 08:57:31,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183467346] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:57:31,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:57:31,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 08:57:31,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828757207] [2023-04-02 08:57:31,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:57:31,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 08:57:31,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:57:31,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 08:57:31,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 08:57:31,893 INFO L87 Difference]: Start difference. First operand has 1762 states, 1142 states have (on average 1.341506129597198) internal successors, (1532), 1192 states have internal predecessors, (1532), 457 states have call successors, (457), 159 states have call predecessors, (457), 157 states have return successors, (452), 447 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 08:57:34,231 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 08:57:36,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:57:38,350 WARN L539 Checker$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 08:57:40,397 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 08:58:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:58:05,807 INFO L93 Difference]: Finished difference Result 5624 states and 8216 transitions. [2023-04-02 08:58:05,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 08:58:05,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2023-04-02 08:58:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:58:05,835 INFO L225 Difference]: With dead ends: 5624 [2023-04-02 08:58:05,835 INFO L226 Difference]: Without dead ends: 3865 [2023-04-02 08:58:05,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-02 08:58:05,849 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 4975 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 4668 mSolverCounterSat, 2936 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 7608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2936 IncrementalHoareTripleChecker+Valid, 4668 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2023-04-02 08:58:05,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 2329 Invalid, 7608 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2936 Valid, 4668 Invalid, 4 Unknown, 0 Unchecked, 31.3s Time] [2023-04-02 08:58:05,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2023-04-02 08:58:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3038. [2023-04-02 08:58:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 1974 states have (on average 1.326241134751773) internal successors, (2618), 2039 states have internal predecessors, (2618), 803 states have call successors, (803), 263 states have call predecessors, (803), 260 states have return successors, (788), 778 states have call predecessors, (788), 788 states have call successors, (788) [2023-04-02 08:58:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 4209 transitions. [2023-04-02 08:58:06,647 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 4209 transitions. Word has length 68 [2023-04-02 08:58:06,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:58:06,647 INFO L495 AbstractCegarLoop]: Abstraction has 3038 states and 4209 transitions. [2023-04-02 08:58:06,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 08:58:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 4209 transitions. [2023-04-02 08:58:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 08:58:06,653 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:58:06,653 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:58:06,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 08:58:06,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:58:06,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:58:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash -840492884, now seen corresponding path program 1 times [2023-04-02 08:58:06,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:58:06,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585347865] [2023-04-02 08:58:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:58:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:58:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:58:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:58:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:58:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:58:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 08:58:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 08:58:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 08:58:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 08:58:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 08:58:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 08:58:07,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:58:07,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585347865] [2023-04-02 08:58:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585347865] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:58:07,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:58:07,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 08:58:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124496274] [2023-04-02 08:58:07,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:58:07,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 08:58:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:58:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 08:58:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 08:58:07,864 INFO L87 Difference]: Start difference. First operand 3038 states and 4209 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:58:10,403 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 08:58:12,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:58:14,530 WARN L539 Checker$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 08:58:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:58:43,858 INFO L93 Difference]: Finished difference Result 8396 states and 12424 transitions. [2023-04-02 08:58:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:58:43,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2023-04-02 08:58:43,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:58:43,896 INFO L225 Difference]: With dead ends: 8396 [2023-04-02 08:58:43,896 INFO L226 Difference]: Without dead ends: 8361 [2023-04-02 08:58:43,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 08:58:43,901 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 7541 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 5051 mSolverCounterSat, 4699 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7911 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 9753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4699 IncrementalHoareTripleChecker+Valid, 5051 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2023-04-02 08:58:43,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7911 Valid, 2715 Invalid, 9753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4699 Valid, 5051 Invalid, 3 Unknown, 0 Unchecked, 32.3s Time] [2023-04-02 08:58:43,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8361 states. [2023-04-02 08:58:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8361 to 5961. [2023-04-02 08:58:45,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5961 states, 3886 states have (on average 1.3262995367987649) internal successors, (5154), 4007 states have internal predecessors, (5154), 1569 states have call successors, (1569), 513 states have call predecessors, (1569), 505 states have return successors, (1562), 1526 states have call predecessors, (1562), 1550 states have call successors, (1562) [2023-04-02 08:58:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5961 states to 5961 states and 8285 transitions. [2023-04-02 08:58:45,202 INFO L78 Accepts]: Start accepts. Automaton has 5961 states and 8285 transitions. Word has length 67 [2023-04-02 08:58:45,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:58:45,202 INFO L495 AbstractCegarLoop]: Abstraction has 5961 states and 8285 transitions. [2023-04-02 08:58:45,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:58:45,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5961 states and 8285 transitions. [2023-04-02 08:58:45,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-04-02 08:58:45,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:58:45,205 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:58:45,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 08:58:45,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:58:45,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:58:45,206 INFO L85 PathProgramCache]: Analyzing trace with hash -288342934, now seen corresponding path program 1 times [2023-04-02 08:58:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:58:45,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806295562] [2023-04-02 08:58:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:58:45,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:58:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:58:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:58:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:58:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:58:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 08:58:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 08:58:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 08:58:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 08:58:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 08:58:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:58:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 08:58:46,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:58:46,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806295562] [2023-04-02 08:58:46,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806295562] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:58:46,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:58:46,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 08:58:46,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960921205] [2023-04-02 08:58:46,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:58:46,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 08:58:46,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:58:46,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 08:58:46,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 08:58:46,395 INFO L87 Difference]: Start difference. First operand 5961 states and 8285 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:58:48,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:58:51,009 WARN L539 Checker$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 08:58:53,048 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 08:59:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:59:26,840 INFO L93 Difference]: Finished difference Result 22536 states and 32898 transitions. [2023-04-02 08:59:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:59:26,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-04-02 08:59:26,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:59:26,946 INFO L225 Difference]: With dead ends: 22536 [2023-04-02 08:59:26,946 INFO L226 Difference]: Without dead ends: 16597 [2023-04-02 08:59:26,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-04-02 08:59:26,972 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 5913 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 5908 mSolverCounterSat, 3242 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6281 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 9153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3242 IncrementalHoareTripleChecker+Valid, 5908 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2023-04-02 08:59:26,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6281 Valid, 3091 Invalid, 9153 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3242 Valid, 5908 Invalid, 3 Unknown, 0 Unchecked, 35.0s Time] [2023-04-02 08:59:26,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16597 states. [2023-04-02 08:59:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16597 to 11820. [2023-04-02 08:59:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11820 states, 7717 states have (on average 1.327458857068809) internal successors, (10244), 7950 states have internal predecessors, (10244), 3107 states have call successors, (3107), 1011 states have call predecessors, (3107), 995 states have return successors, (3102), 3030 states have call predecessors, (3102), 3072 states have call successors, (3102) [2023-04-02 08:59:29,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11820 states to 11820 states and 16453 transitions. [2023-04-02 08:59:29,770 INFO L78 Accepts]: Start accepts. Automaton has 11820 states and 16453 transitions. Word has length 68 [2023-04-02 08:59:29,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:59:29,770 INFO L495 AbstractCegarLoop]: Abstraction has 11820 states and 16453 transitions. [2023-04-02 08:59:29,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:59:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 11820 states and 16453 transitions. [2023-04-02 08:59:29,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-02 08:59:29,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:59:29,773 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:59:29,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 08:59:29,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:59:29,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:59:29,774 INFO L85 PathProgramCache]: Analyzing trace with hash 969093615, now seen corresponding path program 1 times [2023-04-02 08:59:29,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:59:29,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391017213] [2023-04-02 08:59:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:59:29,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:59:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:59:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:59:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:59:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:59:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 08:59:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 08:59:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 08:59:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 08:59:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 08:59:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:59:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:59:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 08:59:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:59:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:59:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:59:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 08:59:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:59:30,978 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 08:59:30,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:59:30,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391017213] [2023-04-02 08:59:30,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391017213] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:59:30,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:59:30,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 08:59:30,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889231572] [2023-04-02 08:59:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:59:30,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 08:59:30,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:59:30,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 08:59:30,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 08:59:30,979 INFO L87 Difference]: Start difference. First operand 11820 states and 16453 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 8 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 08:59:33,562 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 08:59:35,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:59:37,657 WARN L539 Checker$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 08:59:39,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:59:41,753 WARN L539 Checker$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 08:59:43,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:27,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 09:00:27,637 INFO L93 Difference]: Finished difference Result 48051 states and 72246 transitions. [2023-04-02 09:00:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-04-02 09:00:27,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 8 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 103 [2023-04-02 09:00:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 09:00:27,810 INFO L225 Difference]: With dead ends: 48051 [2023-04-02 09:00:27,811 INFO L226 Difference]: Without dead ends: 36243 [2023-04-02 09:00:27,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2023-04-02 09:00:27,861 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 12100 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 8614 mSolverCounterSat, 7482 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12482 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 16102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7482 IncrementalHoareTripleChecker+Valid, 8614 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2023-04-02 09:00:27,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12482 Valid, 1381 Invalid, 16102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7482 Valid, 8614 Invalid, 6 Unknown, 0 Unchecked, 46.9s Time] [2023-04-02 09:00:27,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36243 states. [2023-04-02 09:00:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36243 to 23742. [2023-04-02 09:00:33,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23742 states, 15526 states have (on average 1.327515135901069) internal successors, (20611), 15989 states have internal predecessors, (20611), 6210 states have call successors, (6210), 2001 states have call predecessors, (6210), 2005 states have return successors, (6338), 6095 states have call predecessors, (6338), 6164 states have call successors, (6338) [2023-04-02 09:00:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23742 states to 23742 states and 33159 transitions. [2023-04-02 09:00:33,669 INFO L78 Accepts]: Start accepts. Automaton has 23742 states and 33159 transitions. Word has length 103 [2023-04-02 09:00:33,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 09:00:33,670 INFO L495 AbstractCegarLoop]: Abstraction has 23742 states and 33159 transitions. [2023-04-02 09:00:33,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (19), 8 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 09:00:33,670 INFO L276 IsEmpty]: Start isEmpty. Operand 23742 states and 33159 transitions. [2023-04-02 09:00:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-04-02 09:00:33,677 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 09:00:33,677 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:33,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 09:00:33,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 09:00:33,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 09:00:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash -523067910, now seen corresponding path program 1 times [2023-04-02 09:00:33,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 09:00:33,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987912629] [2023-04-02 09:00:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 09:00:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 09:00:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 09:00:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 09:00:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 09:00:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 09:00:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 09:00:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 09:00:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 09:00:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 09:00:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 09:00:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 09:00:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 09:00:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 09:00:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 09:00:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 09:00:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 09:00:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 09:00:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 09:00:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 09:00:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 09:00:36,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987912629] [2023-04-02 09:00:36,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987912629] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 09:00:36,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 09:00:36,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 09:00:36,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438752035] [2023-04-02 09:00:36,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 09:00:36,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 09:00:36,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 09:00:36,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 09:00:36,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2023-04-02 09:00:36,726 INFO L87 Difference]: Start difference. First operand 23742 states and 33159 transitions. Second operand has 19 states, 17 states have (on average 3.235294117647059) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (19), 7 states have call predecessors, (19), 6 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 09:00:39,332 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 09:00:41,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:43,379 WARN L539 Checker$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 09:00:45,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:47,513 WARN L539 Checker$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 09:00:49,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:51,564 WARN L539 Checker$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 09:00:53,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:55,683 WARN L539 Checker$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 09:00:57,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:00:59,745 WARN L539 Checker$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 09:01:01,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:01:03,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:01:05,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:01:07,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 09:01:09,940 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 []