/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:46:53,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:46:53,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:46:53,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:46:53,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:46:53,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:46:53,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:46:53,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:46:53,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:46:53,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:46:53,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:46:53,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:46:53,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:46:53,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:46:53,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:46:53,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:46:53,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:46:53,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:46:53,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:46:53,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:46:53,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:46:53,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:46:53,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:46:53,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:46:53,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:46:53,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:46:53,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:46:53,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:46:53,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:46:53,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:46:53,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:46:53,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:46:53,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:46:53,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:46:53,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:46:53,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:46:53,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:46:53,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:46:53,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:46:53,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:46:53,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:46:53,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:46:53,752 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:46:53,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:46:53,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:46:53,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:46:53,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:46:53,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:46:53,754 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:46:53,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:46:53,754 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:46:53,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:46:53,755 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:46:53,755 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:46:53,755 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:46:53,755 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:46:53,755 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:46:53,755 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:46:53,756 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:46:53,756 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:46:53,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:46:53,756 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:46:53,757 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:46:53,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:46:53,758 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:46:53,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:46:53,758 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:46:53,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:46:53,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:46:53,759 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:46:53,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:46:53,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:46:53,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:46:54,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:46:54,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:46:54,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:46:54,043 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:46:54,044 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:46:54,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-04-03 06:46:55,161 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:46:55,640 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:46:55,641 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-04-03 06:46:55,677 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/486798a9f/8e33acaf718746b09bb1fdc0f0b5f0e8/FLAG662fd33e9 [2023-04-03 06:46:55,690 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/486798a9f/8e33acaf718746b09bb1fdc0f0b5f0e8 [2023-04-03 06:46:55,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:46:55,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:46:55,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:46:55,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:46:55,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:46:55,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:46:55" (1/1) ... [2023-04-03 06:46:55,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785da91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:55, skipping insertion in model container [2023-04-03 06:46:55,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:46:55" (1/1) ... [2023-04-03 06:46:55,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:46:55,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:46:57,170 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2023-04-03 06:46:57,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:46:57,264 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:46:57,590 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2023-04-03 06:46:57,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:46:57,669 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:46:57,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57 WrapperNode [2023-04-03 06:46:57,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:46:57,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:46:57,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:46:57,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:46:57,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,900 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:46:57,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:46:57,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:46:57,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:46:57,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (1/1) ... [2023-04-03 06:46:57,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:46:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:46:57,990 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) [2023-04-03 06:46:58,014 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 [2023-04-03 06:46:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:46:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:46:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:46:58,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:46:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-04-03 06:46:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_control [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_set_maxpacket_limit [2023-04-03 06:46:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0state_string [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_request [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dbgprint_devreq [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_seq_ep_show [2023-04-03 06:46:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_seq_show [2023-04-03 06:46:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_open [2023-04-03 06:46:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_create [2023-04-03 06:46:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dfs_delete [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_dma_desc [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_dma_desc_chain [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_alloc_request [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_start_dma [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_abort_dma [2023-04-03 06:46:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_add_dma_desc [2023-04-03 06:46:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_setup_out_desc_list [2023-04-03 06:46:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_setup_in_desc_list [2023-04-03 06:46:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue [2023-04-03 06:46:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_int [2023-04-03 06:46:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_nuke [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_reset [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_control_stall [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_halt_wedge [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_ep0state [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_disable_interrupts_and_pullup [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_stop_activity [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_testmode_complete [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_dummy_complete [2023-04-03 06:46:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_u16 [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_respond_empty [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_address [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_device_request [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_interface_request [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_endpoint_request [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0out_requeue [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2023-04-03 06:46:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_connected [2023-04-03 06:46:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_enable_vbus_detect [2023-04-03 06:46:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_vbus_disconnected [2023-04-03 06:46:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_usbreset [2023-04-03 06:46:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_handle_in_ep [2023-04-03 06:46:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_handle_out_ep [2023-04-03 06:46:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_handle_state_changes [2023-04-03 06:46:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq_handler [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_irq [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_enable [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_disable [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_free_request [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_queue_ext [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt_wedge [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_halt [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_set_wedge [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_status [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_fifo_flush [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_get_frame [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_wakeup [2023-04-03 06:46:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_pullup [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_start [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_stop [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_init [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_udc_init [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep_remove [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_remove [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_request_irq [2023-04-03 06:46:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_probe [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_driver_init [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_driver_exit [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_probe_3 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_2 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_6 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_3 [2023-04-03 06:46:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2023-04-03 06:46:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2023-04-03 06:46:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-04-03 06:46:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-04-03 06:46:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-04-03 06:46:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_ep_ops_5 [2023-04-03 06:46:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_gadget_ops_4 [2023-04-03 06:46:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-04-03 06:46:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:46:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_request_threaded_irq_23 [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_25 [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_request_threaded_irq_26 [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_27 [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_28 [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:46:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:46:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32be [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32be [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:46:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32_index [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_gadget_udc [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_del_gadget_udc [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_giveback_request [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_map_request [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_state [2023-04-03 06:46:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unmap_request [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_state_string [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:46:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:46:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:46:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:46:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:46:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:46:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:46:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32be [2023-04-03 06:46:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32be [2023-04-03 06:46:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-03 06:46:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:46:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 06:46:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:46:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_probe_3 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_2 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_6 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_3 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2023-04-03 06:46:58,071 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_ep_ops_5 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_gadget_ops_4 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_request_threaded_irq_23 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_request_threaded_irq_26 [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-04-03 06:46:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_control [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_state_string [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_set_maxpacket_limit [2023-04-03 06:46:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_gadget_udc [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_del_gadget_udc [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_map_request [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unmap_request [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_state [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_giveback_request [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_25 [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-04-03 06:46:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_27 [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_28 [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32_index [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0state_string [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_request [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dbgprint_devreq [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_seq_ep_show [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_seq_show [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_open [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_create [2023-04-03 06:46:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dfs_delete [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_dma_desc [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_dma_desc_chain [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_alloc_request [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_start_dma [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_abort_dma [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_add_dma_desc [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_setup_out_desc_list [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_setup_in_desc_list [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_int [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_nuke [2023-04-03 06:46:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_reset [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_control_stall [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_halt_wedge [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_ep0state [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_disable_interrupts_and_pullup [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_stop_activity [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_testmode_complete [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_dummy_complete [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_u16 [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_respond_empty [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_address [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_device_request [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_interface_request [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_endpoint_request [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0out_requeue [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:46:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_connected [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_enable_vbus_detect [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_vbus_disconnected [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_usbreset [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_handle_in_ep [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_handle_out_ep [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_handle_state_changes [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq_handler [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_irq [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_enable [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_disable [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_free_request [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_queue_ext [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt_wedge [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_halt [2023-04-03 06:46:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure gr_set_wedge [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_status [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_fifo_flush [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_get_frame [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_wakeup [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_pullup [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_start [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_stop [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_init [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_udc_init [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep_remove [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_remove [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_request_irq [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_probe [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_driver_init [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure gr_driver_exit [2023-04-03 06:46:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:46:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:46:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:46:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:46:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:46:58,803 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:46:58,808 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:46:59,175 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:47:03,471 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:47:05,277 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:47:05,277 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 06:47:05,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:47:05 BoogieIcfgContainer [2023-04-03 06:47:05,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:47:05,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:47:05,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:47:05,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:47:05,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:46:55" (1/3) ... [2023-04-03 06:47:05,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbf21a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:47:05, skipping insertion in model container [2023-04-03 06:47:05,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:46:57" (2/3) ... [2023-04-03 06:47:05,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbf21a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:47:05, skipping insertion in model container [2023-04-03 06:47:05,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:47:05" (3/3) ... [2023-04-03 06:47:05,293 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2023-04-03 06:47:05,311 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:47:05,312 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:47:05,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:47:05,417 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@188cb3f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:47:05,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:47:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 1727 states, 1030 states have (on average 1.2970873786407766) internal successors, (1336), 1074 states have internal predecessors, (1336), 512 states have call successors, (512), 177 states have call predecessors, (512), 176 states have return successors, (502), 489 states have call predecessors, (502), 502 states have call successors, (502) [2023-04-03 06:47:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-03 06:47:05,459 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:05,460 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:05,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:05,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:05,466 INFO L85 PathProgramCache]: Analyzing trace with hash 585349845, now seen corresponding path program 1 times [2023-04-03 06:47:05,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:05,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345992612] [2023-04-03 06:47:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:05,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-04-03 06:47:06,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345992612] [2023-04-03 06:47:06,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345992612] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:06,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:06,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:47:06,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817306447] [2023-04-03 06:47:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:06,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:47:06,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:06,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:47:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:06,577 INFO L87 Difference]: Start difference. First operand has 1727 states, 1030 states have (on average 1.2970873786407766) internal successors, (1336), 1074 states have internal predecessors, (1336), 512 states have call successors, (512), 177 states have call predecessors, (512), 176 states have return successors, (502), 489 states have call predecessors, (502), 502 states have call successors, (502) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-03 06:47:09,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:09,232 INFO L93 Difference]: Finished difference Result 4873 states and 6806 transitions. [2023-04-03 06:47:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:47:09,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 141 [2023-04-03 06:47:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:09,273 INFO L225 Difference]: With dead ends: 4873 [2023-04-03 06:47:09,273 INFO L226 Difference]: Without dead ends: 3159 [2023-04-03 06:47:09,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:47:09,291 INFO L413 NwaCegarLoop]: 2129 mSDtfsCounter, 2115 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 4149 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:09,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 4149 Invalid, 465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-03 06:47:09,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2023-04-03 06:47:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3156. [2023-04-03 06:47:09,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 1899 states have (on average 1.2901527119536598) internal successors, (2450), 1973 states have internal predecessors, (2450), 930 states have call successors, (930), 328 states have call predecessors, (930), 326 states have return successors, (928), 902 states have call predecessors, (928), 928 states have call successors, (928) [2023-04-03 06:47:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4308 transitions. [2023-04-03 06:47:09,606 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4308 transitions. Word has length 141 [2023-04-03 06:47:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:09,611 INFO L495 AbstractCegarLoop]: Abstraction has 3156 states and 4308 transitions. [2023-04-03 06:47:09,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-03 06:47:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4308 transitions. [2023-04-03 06:47:09,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-04-03 06:47:09,627 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:09,627 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:09,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:47:09,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:09,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:09,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1373609909, now seen corresponding path program 1 times [2023-04-03 06:47:09,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:09,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034793243] [2023-04-03 06:47:09,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:09,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:11,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:11,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034793243] [2023-04-03 06:47:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034793243] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:11,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:11,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167745715] [2023-04-03 06:47:11,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:11,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:11,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:11,025 INFO L87 Difference]: Start difference. First operand 3156 states and 4308 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:14,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:14,952 INFO L93 Difference]: Finished difference Result 9420 states and 12882 transitions. [2023-04-03 06:47:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:47:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 203 [2023-04-03 06:47:14,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:15,005 INFO L225 Difference]: With dead ends: 9420 [2023-04-03 06:47:15,005 INFO L226 Difference]: Without dead ends: 6298 [2023-04-03 06:47:15,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:15,028 INFO L413 NwaCegarLoop]: 2293 mSDtfsCounter, 2242 mSDsluCounter, 6587 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 8880 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:15,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2246 Valid, 8880 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-03 06:47:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6298 states. [2023-04-03 06:47:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6298 to 6271. [2023-04-03 06:47:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 3779 states have (on average 1.2916115374437682) internal successors, (4881), 3933 states have internal predecessors, (4881), 1842 states have call successors, (1842), 651 states have call predecessors, (1842), 649 states have return successors, (1852), 1780 states have call predecessors, (1852), 1840 states have call successors, (1852) [2023-04-03 06:47:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 8575 transitions. [2023-04-03 06:47:15,510 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 8575 transitions. Word has length 203 [2023-04-03 06:47:15,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:15,513 INFO L495 AbstractCegarLoop]: Abstraction has 6271 states and 8575 transitions. [2023-04-03 06:47:15,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 8575 transitions. [2023-04-03 06:47:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-04-03 06:47:15,523 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:15,524 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:15,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:47:15,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:15,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash 303163327, now seen corresponding path program 1 times [2023-04-03 06:47:15,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:15,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604952540] [2023-04-03 06:47:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:16,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:16,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604952540] [2023-04-03 06:47:16,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604952540] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:16,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:16,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550617858] [2023-04-03 06:47:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:16,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:16,527 INFO L87 Difference]: Start difference. First operand 6271 states and 8575 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:19,848 INFO L93 Difference]: Finished difference Result 18789 states and 25711 transitions. [2023-04-03 06:47:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:47:19,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 206 [2023-04-03 06:47:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:19,949 INFO L225 Difference]: With dead ends: 18789 [2023-04-03 06:47:19,949 INFO L226 Difference]: Without dead ends: 12552 [2023-04-03 06:47:19,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:19,996 INFO L413 NwaCegarLoop]: 2052 mSDtfsCounter, 2241 mSDsluCounter, 6104 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:20,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2245 Valid, 8156 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-03 06:47:20,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12552 states. [2023-04-03 06:47:20,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12552 to 12509. [2023-04-03 06:47:20,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12509 states, 7541 states have (on average 1.2922689298501524) internal successors, (9745), 7865 states have internal predecessors, (9745), 3668 states have call successors, (3668), 1301 states have call predecessors, (3668), 1299 states have return successors, (3694), 3530 states have call predecessors, (3694), 3666 states have call successors, (3694) [2023-04-03 06:47:20,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12509 states to 12509 states and 17107 transitions. [2023-04-03 06:47:20,742 INFO L78 Accepts]: Start accepts. Automaton has 12509 states and 17107 transitions. Word has length 206 [2023-04-03 06:47:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:20,743 INFO L495 AbstractCegarLoop]: Abstraction has 12509 states and 17107 transitions. [2023-04-03 06:47:20,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:20,744 INFO L276 IsEmpty]: Start isEmpty. Operand 12509 states and 17107 transitions. [2023-04-03 06:47:20,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-03 06:47:20,756 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:20,756 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:20,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:47:20,757 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:20,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:20,758 INFO L85 PathProgramCache]: Analyzing trace with hash 526975136, now seen corresponding path program 1 times [2023-04-03 06:47:20,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:20,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113142310] [2023-04-03 06:47:20,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:20,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:21,554 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:21,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:21,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113142310] [2023-04-03 06:47:21,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113142310] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:21,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:21,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:21,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4978589] [2023-04-03 06:47:21,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:21,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:21,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:21,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:21,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:21,556 INFO L87 Difference]: Start difference. First operand 12509 states and 17107 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:23,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:47:26,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:26,992 INFO L93 Difference]: Finished difference Result 28955 states and 39655 transitions. [2023-04-03 06:47:26,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:47:26,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 204 [2023-04-03 06:47:26,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:27,130 INFO L225 Difference]: With dead ends: 28955 [2023-04-03 06:47:27,130 INFO L226 Difference]: Without dead ends: 18824 [2023-04-03 06:47:27,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:27,186 INFO L413 NwaCegarLoop]: 2078 mSDtfsCounter, 2238 mSDsluCounter, 6156 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:27,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 8234 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-03 06:47:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18824 states. [2023-04-03 06:47:28,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18824 to 18753. [2023-04-03 06:47:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18753 states, 11317 states have (on average 1.2921268887514359) internal successors, (14623), 11789 states have internal predecessors, (14623), 5488 states have call successors, (5488), 1949 states have call predecessors, (5488), 1947 states have return successors, (5536), 5294 states have call predecessors, (5536), 5486 states have call successors, (5536) [2023-04-03 06:47:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18753 states to 18753 states and 25647 transitions. [2023-04-03 06:47:28,246 INFO L78 Accepts]: Start accepts. Automaton has 18753 states and 25647 transitions. Word has length 204 [2023-04-03 06:47:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:28,248 INFO L495 AbstractCegarLoop]: Abstraction has 18753 states and 25647 transitions. [2023-04-03 06:47:28,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 18753 states and 25647 transitions. [2023-04-03 06:47:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-04-03 06:47:28,261 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:28,261 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:28,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:47:28,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:28,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:28,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1600863790, now seen corresponding path program 1 times [2023-04-03 06:47:28,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:28,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280790909] [2023-04-03 06:47:28,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:28,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:29,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:29,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280790909] [2023-04-03 06:47:29,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280790909] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:29,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:29,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:29,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219182440] [2023-04-03 06:47:29,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:29,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:29,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:29,184 INFO L87 Difference]: Start difference. First operand 18753 states and 25647 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:33,155 INFO L93 Difference]: Finished difference Result 35219 states and 48203 transitions. [2023-04-03 06:47:33,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:47:33,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 205 [2023-04-03 06:47:33,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:33,244 INFO L225 Difference]: With dead ends: 35219 [2023-04-03 06:47:33,244 INFO L226 Difference]: Without dead ends: 18840 [2023-04-03 06:47:33,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:33,308 INFO L413 NwaCegarLoop]: 2077 mSDtfsCounter, 2236 mSDsluCounter, 6153 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:33,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 8230 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-03 06:47:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18840 states. [2023-04-03 06:47:34,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18840 to 18769. [2023-04-03 06:47:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18769 states, 11333 states have (on average 1.2917144621900645) internal successors, (14639), 11801 states have internal predecessors, (14639), 5484 states have call successors, (5484), 1953 states have call predecessors, (5484), 1951 states have return successors, (5532), 5294 states have call predecessors, (5532), 5482 states have call successors, (5532) [2023-04-03 06:47:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18769 states to 18769 states and 25655 transitions. [2023-04-03 06:47:34,217 INFO L78 Accepts]: Start accepts. Automaton has 18769 states and 25655 transitions. Word has length 205 [2023-04-03 06:47:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:34,217 INFO L495 AbstractCegarLoop]: Abstraction has 18769 states and 25655 transitions. [2023-04-03 06:47:34,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18769 states and 25655 transitions. [2023-04-03 06:47:34,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-04-03 06:47:34,229 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:34,230 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:34,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:47:34,230 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:34,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1477999197, now seen corresponding path program 1 times [2023-04-03 06:47:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571161367] [2023-04-03 06:47:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:34,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571161367] [2023-04-03 06:47:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571161367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:34,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:34,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:34,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408007688] [2023-04-03 06:47:34,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:34,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:34,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:34,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:34,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:34,938 INFO L87 Difference]: Start difference. First operand 18769 states and 25655 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:37,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:37,745 INFO L93 Difference]: Finished difference Result 35183 states and 48127 transitions. [2023-04-03 06:47:37,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:47:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 206 [2023-04-03 06:47:37,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:37,843 INFO L225 Difference]: With dead ends: 35183 [2023-04-03 06:47:37,843 INFO L226 Difference]: Without dead ends: 18784 [2023-04-03 06:47:37,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:37,900 INFO L413 NwaCegarLoop]: 2077 mSDtfsCounter, 2234 mSDsluCounter, 6153 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:37,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 8230 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 06:47:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18784 states. [2023-04-03 06:47:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18784 to 18725. [2023-04-03 06:47:38,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18725 states, 11301 states have (on average 1.2907707282541367) internal successors, (14587), 11765 states have internal predecessors, (14587), 5472 states have call successors, (5472), 1953 states have call predecessors, (5472), 1951 states have return successors, (5520), 5286 states have call predecessors, (5520), 5470 states have call successors, (5520) [2023-04-03 06:47:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18725 states to 18725 states and 25579 transitions. [2023-04-03 06:47:38,859 INFO L78 Accepts]: Start accepts. Automaton has 18725 states and 25579 transitions. Word has length 206 [2023-04-03 06:47:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:38,861 INFO L495 AbstractCegarLoop]: Abstraction has 18725 states and 25579 transitions. [2023-04-03 06:47:38,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 18725 states and 25579 transitions. [2023-04-03 06:47:38,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-03 06:47:38,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:38,875 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:38,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:47:38,875 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:38,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1923490659, now seen corresponding path program 1 times [2023-04-03 06:47:38,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:38,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950253452] [2023-04-03 06:47:38,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:38,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:39,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:39,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950253452] [2023-04-03 06:47:39,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950253452] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:39,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:39,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:39,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62121732] [2023-04-03 06:47:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:39,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:39,596 INFO L87 Difference]: Start difference. First operand 18725 states and 25579 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:42,844 INFO L93 Difference]: Finished difference Result 33997 states and 46522 transitions. [2023-04-03 06:47:42,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:47:42,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 207 [2023-04-03 06:47:42,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:42,937 INFO L225 Difference]: With dead ends: 33997 [2023-04-03 06:47:42,937 INFO L226 Difference]: Without dead ends: 18821 [2023-04-03 06:47:42,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:42,979 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 2235 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:42,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2239 Valid, 6151 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-03 06:47:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18821 states. [2023-04-03 06:47:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18821 to 18749. [2023-04-03 06:47:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18749 states, 11325 states have (on average 1.2901545253863134) internal successors, (14611), 11783 states have internal predecessors, (14611), 5466 states have call successors, (5466), 1959 states have call predecessors, (5466), 1957 states have return successors, (5514), 5286 states have call predecessors, (5514), 5464 states have call successors, (5514) [2023-04-03 06:47:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18749 states to 18749 states and 25591 transitions. [2023-04-03 06:47:43,959 INFO L78 Accepts]: Start accepts. Automaton has 18749 states and 25591 transitions. Word has length 207 [2023-04-03 06:47:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:43,960 INFO L495 AbstractCegarLoop]: Abstraction has 18749 states and 25591 transitions. [2023-04-03 06:47:43,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 18749 states and 25591 transitions. [2023-04-03 06:47:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-04-03 06:47:43,973 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:43,974 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:43,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:47:43,974 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:43,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1395642494, now seen corresponding path program 1 times [2023-04-03 06:47:43,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897366929] [2023-04-03 06:47:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:44,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897366929] [2023-04-03 06:47:44,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897366929] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:44,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:44,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:44,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111573683] [2023-04-03 06:47:44,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:44,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:44,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:44,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:44,562 INFO L87 Difference]: Start difference. First operand 18749 states and 25591 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:46,824 INFO L93 Difference]: Finished difference Result 34051 states and 46546 transitions. [2023-04-03 06:47:46,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:47:46,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 208 [2023-04-03 06:47:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:46,916 INFO L225 Difference]: With dead ends: 34051 [2023-04-03 06:47:46,916 INFO L226 Difference]: Without dead ends: 18845 [2023-04-03 06:47:46,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:46,968 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 2233 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:46,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 6151 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 06:47:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18845 states. [2023-04-03 06:47:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18845 to 18773. [2023-04-03 06:47:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18773 states, 11349 states have (on average 1.2895409287161865) internal successors, (14635), 11801 states have internal predecessors, (14635), 5460 states have call successors, (5460), 1965 states have call predecessors, (5460), 1963 states have return successors, (5508), 5286 states have call predecessors, (5508), 5458 states have call successors, (5508) [2023-04-03 06:47:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18773 states to 18773 states and 25603 transitions. [2023-04-03 06:47:47,917 INFO L78 Accepts]: Start accepts. Automaton has 18773 states and 25603 transitions. Word has length 208 [2023-04-03 06:47:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:47,917 INFO L495 AbstractCegarLoop]: Abstraction has 18773 states and 25603 transitions. [2023-04-03 06:47:47,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 18773 states and 25603 transitions. [2023-04-03 06:47:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-04-03 06:47:47,937 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:47,938 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:47,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 06:47:47,938 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:47,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1075739270, now seen corresponding path program 1 times [2023-04-03 06:47:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019766574] [2023-04-03 06:47:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:48,530 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:48,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:48,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019766574] [2023-04-03 06:47:48,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019766574] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:48,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:47:48,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:47:48,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459202642] [2023-04-03 06:47:48,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:48,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:47:48,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:48,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:47:48,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:47:48,533 INFO L87 Difference]: Start difference. First operand 18773 states and 25603 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:47:50,809 INFO L93 Difference]: Finished difference Result 33635 states and 45900 transitions. [2023-04-03 06:47:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:47:50,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 209 [2023-04-03 06:47:50,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:47:50,893 INFO L225 Difference]: With dead ends: 33635 [2023-04-03 06:47:50,894 INFO L226 Difference]: Without dead ends: 18399 [2023-04-03 06:47:50,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:47:50,943 INFO L413 NwaCegarLoop]: 2055 mSDtfsCounter, 2231 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:47:50,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 6151 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 06:47:50,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18399 states. [2023-04-03 06:47:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18399 to 18345. [2023-04-03 06:47:51,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18345 states, 11076 states have (on average 1.287919826652221) internal successors, (14265), 11510 states have internal predecessors, (14265), 5322 states have call successors, (5322), 1948 states have call predecessors, (5322), 1946 states have return successors, (5370), 5156 states have call predecessors, (5370), 5320 states have call successors, (5370) [2023-04-03 06:47:51,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18345 states to 18345 states and 24957 transitions. [2023-04-03 06:47:51,968 INFO L78 Accepts]: Start accepts. Automaton has 18345 states and 24957 transitions. Word has length 209 [2023-04-03 06:47:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:47:51,969 INFO L495 AbstractCegarLoop]: Abstraction has 18345 states and 24957 transitions. [2023-04-03 06:47:51,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-03 06:47:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 18345 states and 24957 transitions. [2023-04-03 06:47:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-03 06:47:51,984 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:47:51,984 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:47:51,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 06:47:51,985 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:47:51,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:47:51,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1556058629, now seen corresponding path program 1 times [2023-04-03 06:47:51,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:47:51,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305299818] [2023-04-03 06:47:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:51,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:47:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2023-04-03 06:47:53,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:47:53,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305299818] [2023-04-03 06:47:53,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305299818] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:47:53,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225061398] [2023-04-03 06:47:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:47:53,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:47:53,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:47:53,494 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:47:53,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:47:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:47:54,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 5968 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:47:54,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:47:54,989 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:47:54,989 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:47:54,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225061398] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:47:54,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:47:54,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-03 06:47:54,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19845189] [2023-04-03 06:47:54,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:47:54,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:47:54,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:47:54,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:47:54,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:47:54,992 INFO L87 Difference]: Start difference. First operand 18345 states and 24957 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:47:59,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:01,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:48:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:05,788 INFO L93 Difference]: Finished difference Result 43089 states and 58673 transitions. [2023-04-03 06:48:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:48:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 220 [2023-04-03 06:48:05,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:05,934 INFO L225 Difference]: With dead ends: 43089 [2023-04-03 06:48:05,934 INFO L226 Difference]: Without dead ends: 30570 [2023-04-03 06:48:05,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-04-03 06:48:05,994 INFO L413 NwaCegarLoop]: 3118 mSDtfsCounter, 2289 mSDsluCounter, 14489 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 17607 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:05,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 17607 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1899 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-04-03 06:48:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30570 states. [2023-04-03 06:48:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30570 to 30443. [2023-04-03 06:48:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30443 states, 18395 states have (on average 1.2886653982060343) internal successors, (23705), 19129 states have internal predecessors, (23705), 8810 states have call successors, (8810), 3231 states have call predecessors, (8810), 3237 states have return successors, (8942), 8526 states have call predecessors, (8942), 8808 states have call successors, (8942) [2023-04-03 06:48:07,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30443 states to 30443 states and 41457 transitions. [2023-04-03 06:48:07,543 INFO L78 Accepts]: Start accepts. Automaton has 30443 states and 41457 transitions. Word has length 220 [2023-04-03 06:48:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:07,544 INFO L495 AbstractCegarLoop]: Abstraction has 30443 states and 41457 transitions. [2023-04-03 06:48:07,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:07,544 INFO L276 IsEmpty]: Start isEmpty. Operand 30443 states and 41457 transitions. [2023-04-03 06:48:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-03 06:48:07,563 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:07,563 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:07,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:07,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-03 06:48:07,784 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:07,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:07,785 INFO L85 PathProgramCache]: Analyzing trace with hash 656640203, now seen corresponding path program 1 times [2023-04-03 06:48:07,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763305767] [2023-04-03 06:48:07,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:08,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763305767] [2023-04-03 06:48:08,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763305767] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:08,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464804492] [2023-04-03 06:48:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:08,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:08,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:08,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:08,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:48:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:10,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 5970 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:48:10,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:10,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:10,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464804492] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:10,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:10,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:48:10,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073908466] [2023-04-03 06:48:10,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:10,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:48:10,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:10,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:48:10,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:48:10,430 INFO L87 Difference]: Start difference. First operand 30443 states and 41457 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:15,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:48:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:19,509 INFO L93 Difference]: Finished difference Result 67329 states and 91725 transitions. [2023-04-03 06:48:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:48:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 221 [2023-04-03 06:48:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:19,677 INFO L225 Difference]: With dead ends: 67329 [2023-04-03 06:48:19,678 INFO L226 Difference]: Without dead ends: 42712 [2023-04-03 06:48:19,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:48:19,749 INFO L413 NwaCegarLoop]: 3363 mSDtfsCounter, 2289 mSDsluCounter, 15451 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 18814 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:19,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 18814 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-03 06:48:19,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42712 states. [2023-04-03 06:48:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42712 to 42561. [2023-04-03 06:48:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42561 states, 25726 states have (on average 1.2888517453160226) internal successors, (33157), 26772 states have internal predecessors, (33157), 12298 states have call successors, (12298), 4514 states have call predecessors, (12298), 4536 states have return successors, (12542), 11892 states have call predecessors, (12542), 12296 states have call successors, (12542) [2023-04-03 06:48:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42561 states to 42561 states and 57997 transitions. [2023-04-03 06:48:21,761 INFO L78 Accepts]: Start accepts. Automaton has 42561 states and 57997 transitions. Word has length 221 [2023-04-03 06:48:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:21,762 INFO L495 AbstractCegarLoop]: Abstraction has 42561 states and 57997 transitions. [2023-04-03 06:48:21,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 42561 states and 57997 transitions. [2023-04-03 06:48:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-03 06:48:21,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:21,784 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:21,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:21,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-03 06:48:21,997 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:21,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1100349314, now seen corresponding path program 1 times [2023-04-03 06:48:21,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:21,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580508174] [2023-04-03 06:48:21,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:23,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:23,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580508174] [2023-04-03 06:48:23,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580508174] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:23,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772488643] [2023-04-03 06:48:23,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:23,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:23,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:23,234 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:23,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:48:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:24,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 5972 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:48:24,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:24,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772488643] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:48:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449109332] [2023-04-03 06:48:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:24,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:48:24,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:24,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:48:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:48:24,570 INFO L87 Difference]: Start difference. First operand 42561 states and 57997 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:32,459 INFO L93 Difference]: Finished difference Result 91557 states and 124801 transitions. [2023-04-03 06:48:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:48:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 222 [2023-04-03 06:48:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:32,657 INFO L225 Difference]: With dead ends: 91557 [2023-04-03 06:48:32,658 INFO L226 Difference]: Without dead ends: 54822 [2023-04-03 06:48:32,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:48:32,738 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 2289 mSDsluCounter, 15393 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 18741 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:32,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 18741 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-03 06:48:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54822 states. [2023-04-03 06:48:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54822 to 42565. [2023-04-03 06:48:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42565 states, 25730 states have (on average 1.288806840264283) internal successors, (33161), 26772 states have internal predecessors, (33161), 12298 states have call successors, (12298), 4514 states have call predecessors, (12298), 4536 states have return successors, (12542), 11896 states have call predecessors, (12542), 12296 states have call successors, (12542) [2023-04-03 06:48:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42565 states to 42565 states and 58001 transitions. [2023-04-03 06:48:34,813 INFO L78 Accepts]: Start accepts. Automaton has 42565 states and 58001 transitions. Word has length 222 [2023-04-03 06:48:34,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:34,813 INFO L495 AbstractCegarLoop]: Abstraction has 42565 states and 58001 transitions. [2023-04-03 06:48:34,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:34,813 INFO L276 IsEmpty]: Start isEmpty. Operand 42565 states and 58001 transitions. [2023-04-03 06:48:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-03 06:48:34,828 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:34,828 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:34,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:35,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:35,037 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:35,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:35,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1755015374, now seen corresponding path program 1 times [2023-04-03 06:48:35,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:35,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602606567] [2023-04-03 06:48:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:36,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602606567] [2023-04-03 06:48:36,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602606567] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758619921] [2023-04-03 06:48:36,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:36,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:36,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:36,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:36,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:48:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:37,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 5974 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:48:37,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:37,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:37,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758619921] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:37,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:37,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:48:37,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030536143] [2023-04-03 06:48:37,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:37,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:48:37,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:48:37,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:48:37,535 INFO L87 Difference]: Start difference. First operand 42565 states and 58001 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:44,853 INFO L93 Difference]: Finished difference Result 91569 states and 124805 transitions. [2023-04-03 06:48:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:48:44,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 223 [2023-04-03 06:48:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:45,071 INFO L225 Difference]: With dead ends: 91569 [2023-04-03 06:48:45,071 INFO L226 Difference]: Without dead ends: 54830 [2023-04-03 06:48:45,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:48:45,325 INFO L413 NwaCegarLoop]: 2311 mSDtfsCounter, 2289 mSDsluCounter, 11245 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 13556 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:45,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 13556 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-03 06:48:45,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54830 states. [2023-04-03 06:48:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54830 to 42569. [2023-04-03 06:48:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42569 states, 25734 states have (on average 1.2887619491723012) internal successors, (33165), 26772 states have internal predecessors, (33165), 12298 states have call successors, (12298), 4514 states have call predecessors, (12298), 4536 states have return successors, (12534), 11900 states have call predecessors, (12534), 12296 states have call successors, (12534) [2023-04-03 06:48:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42569 states to 42569 states and 57997 transitions. [2023-04-03 06:48:47,322 INFO L78 Accepts]: Start accepts. Automaton has 42569 states and 57997 transitions. Word has length 223 [2023-04-03 06:48:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:48:47,323 INFO L495 AbstractCegarLoop]: Abstraction has 42569 states and 57997 transitions. [2023-04-03 06:48:47,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:47,323 INFO L276 IsEmpty]: Start isEmpty. Operand 42569 states and 57997 transitions. [2023-04-03 06:48:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-04-03 06:48:47,340 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:48:47,341 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:48:47,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 06:48:47,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:47,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:48:47,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:48:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash 347831180, now seen corresponding path program 1 times [2023-04-03 06:48:47,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:48:47,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125064833] [2023-04-03 06:48:47,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:47,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:48:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-04-03 06:48:48,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:48:48,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125064833] [2023-04-03 06:48:48,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125064833] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:48:48,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674671845] [2023-04-03 06:48:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:48:48,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:48:48,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:48:48,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:48:48,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 06:48:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:48:49,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 5980 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:48:49,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:48:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:48:49,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:48:49,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674671845] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:48:49,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:48:49,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-03 06:48:49,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296077468] [2023-04-03 06:48:49,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:48:49,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:48:49,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:48:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:48:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:48:49,957 INFO L87 Difference]: Start difference. First operand 42569 states and 57997 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:48:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:48:57,955 INFO L93 Difference]: Finished difference Result 85555 states and 116525 transitions. [2023-04-03 06:48:57,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:48:57,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 226 [2023-04-03 06:48:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:48:58,350 INFO L225 Difference]: With dead ends: 85555 [2023-04-03 06:48:58,350 INFO L226 Difference]: Without dead ends: 63519 [2023-04-03 06:48:58,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-04-03 06:48:58,406 INFO L413 NwaCegarLoop]: 3105 mSDtfsCounter, 2266 mSDsluCounter, 14423 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 17528 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:48:58,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 17528 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-03 06:48:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63519 states. [2023-04-03 06:49:01,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63519 to 63208. [2023-04-03 06:49:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63208 states, 38213 states have (on average 1.2892471148562008) internal successors, (49266), 39759 states have internal predecessors, (49266), 18224 states have call successors, (18224), 6722 states have call predecessors, (18224), 6770 states have return successors, (18628), 17638 states have call predecessors, (18628), 18222 states have call successors, (18628) [2023-04-03 06:49:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63208 states to 63208 states and 86118 transitions. [2023-04-03 06:49:01,588 INFO L78 Accepts]: Start accepts. Automaton has 63208 states and 86118 transitions. Word has length 226 [2023-04-03 06:49:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:49:01,591 INFO L495 AbstractCegarLoop]: Abstraction has 63208 states and 86118 transitions. [2023-04-03 06:49:01,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 63208 states and 86118 transitions. [2023-04-03 06:49:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-04-03 06:49:01,617 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:49:01,617 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:49:01,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-03 06:49:01,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-03 06:49:01,835 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:49:01,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:49:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash -909341557, now seen corresponding path program 1 times [2023-04-03 06:49:01,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:49:01,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062316231] [2023-04-03 06:49:01,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:49:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:02,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:49:02,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062316231] [2023-04-03 06:49:02,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062316231] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:49:02,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254534987] [2023-04-03 06:49:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:02,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:49:02,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:49:02,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:49:02,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-03 06:49:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:04,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 5982 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:49:04,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:49:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:04,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:49:04,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254534987] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:49:04,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:49:04,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:49:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686292713] [2023-04-03 06:49:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:49:04,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:49:04,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:49:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:49:04,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:49:04,199 INFO L87 Difference]: Start difference. First operand 63208 states and 86118 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:10,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:49:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:49:14,988 INFO L93 Difference]: Finished difference Result 126875 states and 172823 transitions. [2023-04-03 06:49:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:49:14,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 227 [2023-04-03 06:49:14,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:49:15,461 INFO L225 Difference]: With dead ends: 126875 [2023-04-03 06:49:15,461 INFO L226 Difference]: Without dead ends: 84200 [2023-04-03 06:49:15,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:49:15,584 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 2266 mSDsluCounter, 14439 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 17553 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:49:15,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 17553 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-04-03 06:49:15,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84200 states. [2023-04-03 06:49:19,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84200 to 83833. [2023-04-03 06:49:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83833 states, 50678 states have (on average 1.2895733849007458) internal successors, (65353), 52746 states have internal predecessors, (65353), 24150 states have call successors, (24150), 8930 states have call predecessors, (24150), 9004 states have return successors, (24750), 23362 states have call predecessors, (24750), 24148 states have call successors, (24750) [2023-04-03 06:49:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83833 states to 83833 states and 114253 transitions. [2023-04-03 06:49:19,743 INFO L78 Accepts]: Start accepts. Automaton has 83833 states and 114253 transitions. Word has length 227 [2023-04-03 06:49:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:49:19,744 INFO L495 AbstractCegarLoop]: Abstraction has 83833 states and 114253 transitions. [2023-04-03 06:49:19,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:19,744 INFO L276 IsEmpty]: Start isEmpty. Operand 83833 states and 114253 transitions. [2023-04-03 06:49:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-04-03 06:49:19,770 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:49:19,770 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:49:19,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-03 06:49:19,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-03 06:49:19,972 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:49:19,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:49:19,972 INFO L85 PathProgramCache]: Analyzing trace with hash 283730565, now seen corresponding path program 1 times [2023-04-03 06:49:19,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:49:19,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557333352] [2023-04-03 06:49:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:19,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:49:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:21,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:49:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557333352] [2023-04-03 06:49:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557333352] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:49:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132612458] [2023-04-03 06:49:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:21,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:49:21,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:49:21,377 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:49:21,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-03 06:49:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:22,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 5984 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:49:22,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:49:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:22,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:49:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132612458] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:49:22,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:49:22,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:49:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069168952] [2023-04-03 06:49:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:49:22,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:49:22,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:49:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:49:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:49:22,752 INFO L87 Difference]: Start difference. First operand 83833 states and 114253 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:28,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:49:35,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:49:35,513 INFO L93 Difference]: Finished difference Result 168125 states and 229107 transitions. [2023-04-03 06:49:35,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:49:35,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 228 [2023-04-03 06:49:35,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:49:36,161 INFO L225 Difference]: With dead ends: 168125 [2023-04-03 06:49:36,161 INFO L226 Difference]: Without dead ends: 104825 [2023-04-03 06:49:36,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:49:36,351 INFO L413 NwaCegarLoop]: 3114 mSDtfsCounter, 2266 mSDsluCounter, 14439 mSDsCounter, 0 mSdLazyCounter, 1880 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 17553 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:49:36,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 17553 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1880 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-04-03 06:49:36,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104825 states. [2023-04-03 06:49:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104825 to 83833. [2023-04-03 06:49:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83833 states, 50678 states have (on average 1.2895733849007458) internal successors, (65353), 52746 states have internal predecessors, (65353), 24150 states have call successors, (24150), 8930 states have call predecessors, (24150), 9004 states have return successors, (24750), 23362 states have call predecessors, (24750), 24148 states have call successors, (24750) [2023-04-03 06:49:41,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83833 states to 83833 states and 114253 transitions. [2023-04-03 06:49:41,114 INFO L78 Accepts]: Start accepts. Automaton has 83833 states and 114253 transitions. Word has length 228 [2023-04-03 06:49:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:49:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 83833 states and 114253 transitions. [2023-04-03 06:49:41,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 83833 states and 114253 transitions. [2023-04-03 06:49:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-04-03 06:49:41,142 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:49:41,143 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:49:41,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-03 06:49:41,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:49:41,344 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:49:41,344 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:49:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash 124981988, now seen corresponding path program 1 times [2023-04-03 06:49:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:49:41,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035571936] [2023-04-03 06:49:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:41,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:49:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:42,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:49:42,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035571936] [2023-04-03 06:49:42,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035571936] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:49:42,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109293332] [2023-04-03 06:49:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:42,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:49:42,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:49:42,357 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:49:42,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-03 06:49:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:43,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 5986 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:49:43,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:49:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-04-03 06:49:43,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:49:43,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109293332] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:49:43,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:49:43,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:49:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926795126] [2023-04-03 06:49:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:49:43,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:49:43,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:49:43,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:49:43,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:49:43,731 INFO L87 Difference]: Start difference. First operand 83833 states and 114253 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:51,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:49:51,128 INFO L93 Difference]: Finished difference Result 168125 states and 229079 transitions. [2023-04-03 06:49:51,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:49:51,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2023-04-03 06:49:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:49:51,609 INFO L225 Difference]: With dead ends: 168125 [2023-04-03 06:49:51,609 INFO L226 Difference]: Without dead ends: 104825 [2023-04-03 06:49:51,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:49:51,950 INFO L413 NwaCegarLoop]: 2057 mSDtfsCounter, 2266 mSDsluCounter, 10211 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 12268 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:49:51,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 12268 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-03 06:49:52,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104825 states. [2023-04-03 06:49:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104825 to 83833. [2023-04-03 06:49:55,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83833 states, 50678 states have (on average 1.2895733849007458) internal successors, (65353), 52746 states have internal predecessors, (65353), 24150 states have call successors, (24150), 8930 states have call predecessors, (24150), 9004 states have return successors, (24722), 23362 states have call predecessors, (24722), 24148 states have call successors, (24722) [2023-04-03 06:49:56,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83833 states to 83833 states and 114225 transitions. [2023-04-03 06:49:56,446 INFO L78 Accepts]: Start accepts. Automaton has 83833 states and 114225 transitions. Word has length 229 [2023-04-03 06:49:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:49:56,446 INFO L495 AbstractCegarLoop]: Abstraction has 83833 states and 114225 transitions. [2023-04-03 06:49:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (39), 4 states have call predecessors, (39), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-03 06:49:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 83833 states and 114225 transitions. [2023-04-03 06:49:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-04-03 06:49:56,476 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:49:56,477 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:49:56,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-03 06:49:56,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-03 06:49:56,693 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:49:56,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:49:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1222888068, now seen corresponding path program 1 times [2023-04-03 06:49:56,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:49:56,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218097882] [2023-04-03 06:49:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:49:56,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:49:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:49:56,938 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2023-04-03 06:49:56,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:49:56,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218097882] [2023-04-03 06:49:56,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218097882] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:49:56,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:49:56,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:49:56,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993436756] [2023-04-03 06:49:56,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:49:56,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:49:56,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:49:56,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:49:56,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:49:56,940 INFO L87 Difference]: Start difference. First operand 83833 states and 114225 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-03 06:50:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:50:04,351 INFO L93 Difference]: Finished difference Result 241455 states and 328394 transitions. [2023-04-03 06:50:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:50:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 239 [2023-04-03 06:50:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:50:05,266 INFO L225 Difference]: With dead ends: 241455 [2023-04-03 06:50:05,266 INFO L226 Difference]: Without dead ends: 157656 [2023-04-03 06:50:05,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:50:05,499 INFO L413 NwaCegarLoop]: 2206 mSDtfsCounter, 2157 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:50:05,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4202 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 06:50:05,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157656 states.