/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 08:30:25,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 08:30:25,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 08:30:25,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 08:30:25,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 08:30:25,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 08:30:25,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 08:30:25,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 08:30:25,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 08:30:25,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 08:30:25,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 08:30:25,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 08:30:25,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 08:30:25,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 08:30:25,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 08:30:25,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 08:30:25,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 08:30:25,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 08:30:25,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 08:30:25,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 08:30:25,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 08:30:25,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 08:30:25,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 08:30:25,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 08:30:25,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 08:30:25,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 08:30:25,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 08:30:25,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 08:30:25,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 08:30:25,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 08:30:25,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 08:30:25,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 08:30:25,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 08:30:25,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 08:30:25,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 08:30:25,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 08:30:25,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 08:30:25,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 08:30:25,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 08:30:25,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 08:30:25,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 08:30:25,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 08:30:25,745 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 08:30:25,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 08:30:25,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 08:30:25,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 08:30:25,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 08:30:25,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 08:30:25,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 08:30:25,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 08:30:25,748 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 08:30:25,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 08:30:25,749 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 08:30:25,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 08:30:25,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 08:30:25,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 08:30:25,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 08:30:25,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:30:25,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 08:30:25,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 08:30:25,752 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 08:30:25,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 08:30:25,752 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 08:30:25,752 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 08:30:25,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 08:30:26,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 08:30:26,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 08:30:26,027 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 08:30:26,027 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 08:30:26,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-04-02 08:30:27,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 08:30:27,723 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 08:30:27,724 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-04-02 08:30:27,755 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceffd3270/c61c26b9479a4666b07057b50c4ad9da/FLAGaa7fc3ff7 [2023-04-02 08:30:27,769 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceffd3270/c61c26b9479a4666b07057b50c4ad9da [2023-04-02 08:30:27,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 08:30:27,773 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 08:30:27,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 08:30:27,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 08:30:27,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 08:30:27,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:30:27" (1/1) ... [2023-04-02 08:30:27,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a662367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:27, skipping insertion in model container [2023-04-02 08:30:27,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:30:27" (1/1) ... [2023-04-02 08:30:27,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 08:30:27,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 08:30:28,710 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2023-04-02 08:30:29,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:30:29,298 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 08:30:29,438 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2023-04-02 08:30:29,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:30:29,612 INFO L208 MainTranslator]: Completed translation [2023-04-02 08:30:29,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29 WrapperNode [2023-04-02 08:30:29,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 08:30:29,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 08:30:29,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 08:30:29,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 08:30:29,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 08:30:29,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 08:30:29,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 08:30:29,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 08:30:29,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (1/1) ... [2023-04-02 08:30:29,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:30:29,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:30:29,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 08:30:29,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 08:30:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 08:30:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-02 08:30:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 08:30:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-02 08:30:29,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-04-02 08:30:29,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-04-02 08:30:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure can_dropped_invalid_skb [2023-04-02 08:30:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2023-04-02 08:30:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_can_msg [2023-04-02 08:30:29,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_bulk_callback [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_start [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_open [2023-04-02 08:30:29,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_start_xmit [2023-04-02 08:30:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_close [2023-04-02 08:30:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_set_mode [2023-04-02 08:30:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_set_bittiming [2023-04-02 08:30:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure init_params_sja1000 [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_probe [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_driver_init [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_driver_exit [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2023-04-02 08:30:29,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_6 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_9 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_10 [2023-04-02 08:30:29,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_12 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_16 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_17 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_20 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_22 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_23 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_24 [2023-04-02 08:30:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-02 08:30:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-02 08:30:29,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_err_skb [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_can_skb [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_candev [2023-04-02 08:30:29,882 INFO L138 BoogieDeclarations]: Found implementation of procedure can_bus_off [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure can_get_echo_skb [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure can_put_echo_skb [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 08:30:29,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-04-02 08:30:29,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-04-02 08:30:29,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2023-04-02 08:30:29,885 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-04-02 08:30:29,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 08:30:29,886 INFO L138 BoogieDeclarations]: Found implementation of procedure register_candev [2023-04-02 08:30:29,886 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-04-02 08:30:29,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-04-02 08:30:29,894 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-02 08:30:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 08:30:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 08:30:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-02 08:30:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 08:30:29,895 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 08:30:29,896 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_20 [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_23 [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_24 [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 08:30:29,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_10 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_12 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_17 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_6 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_9 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_16 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_22 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-04-02 08:30:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 08:30:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2023-04-02 08:30:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-04-02 08:30:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure can_dropped_invalid_skb [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_candev [2023-04-02 08:30:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-04-02 08:30:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure register_candev [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_bus_off [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_put_echo_skb [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_get_echo_skb [2023-04-02 08:30:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_skb [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_can_err_skb [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_can_msg [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_bulk_callback [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_start [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_open [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_start_xmit [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_close [2023-04-02 08:30:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_set_mode [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_set_bittiming [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure init_params_sja1000 [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_probe [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_driver_init [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_driver_exit [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-02 08:30:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 08:30:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 08:30:30,436 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 08:30:30,440 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 08:30:30,900 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-02 08:30:32,601 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-02 08:30:33,375 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 08:30:33,394 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 08:30:33,394 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 08:30:33,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:30:33 BoogieIcfgContainer [2023-04-02 08:30:33,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 08:30:33,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 08:30:33,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 08:30:33,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 08:30:33,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:30:27" (1/3) ... [2023-04-02 08:30:33,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc0628b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:30:33, skipping insertion in model container [2023-04-02 08:30:33,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:30:29" (2/3) ... [2023-04-02 08:30:33,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc0628b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:30:33, skipping insertion in model container [2023-04-02 08:30:33,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:30:33" (3/3) ... [2023-04-02 08:30:33,408 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-04-02 08:30:33,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 08:30:33,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 08:30:33,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 08:30:33,508 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79b52927, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 08:30:33,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 08:30:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 1109 states, 728 states have (on average 1.2953296703296704) internal successors, (943), 760 states have internal predecessors, (943), 243 states have call successors, (243), 130 states have call predecessors, (243), 128 states have return successors, (235), 228 states have call predecessors, (235), 235 states have call successors, (235) [2023-04-02 08:30:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-02 08:30:33,529 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:30:33,530 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 08:30:33,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:30:33,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:30:33,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1142376273, now seen corresponding path program 1 times [2023-04-02 08:30:33,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:30:33,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083047287] [2023-04-02 08:30:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:30:33,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:30:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:30:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:30:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:30:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:30:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 08:30:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:30:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:30:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 08:30:34,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:30:34,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083047287] [2023-04-02 08:30:34,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083047287] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:30:34,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:30:34,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 08:30:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580135744] [2023-04-02 08:30:34,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:30:34,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 08:30:34,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:30:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 08:30:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 08:30:34,561 INFO L87 Difference]: Start difference. First operand has 1109 states, 728 states have (on average 1.2953296703296704) internal successors, (943), 760 states have internal predecessors, (943), 243 states have call successors, (243), 130 states have call predecessors, (243), 128 states have return successors, (235), 228 states have call predecessors, (235), 235 states have call successors, (235) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 08:30:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:30:52,243 INFO L93 Difference]: Finished difference Result 3851 states and 5323 transitions. [2023-04-02 08:30:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 08:30:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 45 [2023-04-02 08:30:52,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:30:52,282 INFO L225 Difference]: With dead ends: 3851 [2023-04-02 08:30:52,282 INFO L226 Difference]: Without dead ends: 2773 [2023-04-02 08:30:52,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:30:52,298 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 4012 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 4386 mSolverCounterSat, 2279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 6665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2279 IncrementalHoareTripleChecker+Valid, 4386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-04-02 08:30:52,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 582 Invalid, 6665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2279 Valid, 4386 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2023-04-02 08:30:52,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2023-04-02 08:30:52,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1989. [2023-04-02 08:30:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1311 states have (on average 1.257818459191457) internal successors, (1649), 1347 states have internal predecessors, (1649), 437 states have call successors, (437), 243 states have call predecessors, (437), 240 states have return successors, (430), 416 states have call predecessors, (430), 430 states have call successors, (430) [2023-04-02 08:30:52,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2516 transitions. [2023-04-02 08:30:52,971 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2516 transitions. Word has length 45 [2023-04-02 08:30:52,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:30:52,972 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 2516 transitions. [2023-04-02 08:30:52,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-02 08:30:52,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2516 transitions. [2023-04-02 08:30:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 08:30:52,980 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:30:52,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 08:30:52,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 08:30:52,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:30:52,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:30:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1093938286, now seen corresponding path program 1 times [2023-04-02 08:30:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:30:52,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41930911] [2023-04-02 08:30:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:30:52,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:30:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:30:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:30:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:30:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:30:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:30:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:53,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:30:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:30:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:30:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:30:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:30:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:30:54,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:30:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41930911] [2023-04-02 08:30:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41930911] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:30:54,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:30:54,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:30:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558379236] [2023-04-02 08:30:54,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:30:54,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:30:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:30:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:30:54,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:30:54,044 INFO L87 Difference]: Start difference. First operand 1989 states and 2516 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:31:10,636 INFO L93 Difference]: Finished difference Result 7350 states and 9924 transitions. [2023-04-02 08:31:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 08:31:10,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2023-04-02 08:31:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:31:10,666 INFO L225 Difference]: With dead ends: 7350 [2023-04-02 08:31:10,666 INFO L226 Difference]: Without dead ends: 5375 [2023-04-02 08:31:10,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:31:10,679 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 4346 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 4100 mSolverCounterSat, 2619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4465 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 6719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2619 IncrementalHoareTripleChecker+Valid, 4100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-04-02 08:31:10,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4465 Valid, 1914 Invalid, 6719 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2619 Valid, 4100 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2023-04-02 08:31:10,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5375 states. [2023-04-02 08:31:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5375 to 4289. [2023-04-02 08:31:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 2834 states have (on average 1.2575864502470007) internal successors, (3564), 2946 states have internal predecessors, (3564), 904 states have call successors, (904), 482 states have call predecessors, (904), 550 states have return successors, (1098), 904 states have call predecessors, (1098), 896 states have call successors, (1098) [2023-04-02 08:31:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 5566 transitions. [2023-04-02 08:31:11,537 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 5566 transitions. Word has length 61 [2023-04-02 08:31:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:31:11,538 INFO L495 AbstractCegarLoop]: Abstraction has 4289 states and 5566 transitions. [2023-04-02 08:31:11,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 5566 transitions. [2023-04-02 08:31:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-04-02 08:31:11,542 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:31:11,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 08:31:11,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 08:31:11,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:31:11,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:31:11,546 INFO L85 PathProgramCache]: Analyzing trace with hash 447041649, now seen corresponding path program 1 times [2023-04-02 08:31:11,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:31:11,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499995891] [2023-04-02 08:31:11,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:31:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:31:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:31:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:31:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:31:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:31:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:31:12,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:31:12,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499995891] [2023-04-02 08:31:12,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499995891] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:31:12,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:31:12,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:31:12,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737150912] [2023-04-02 08:31:12,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:31:12,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:31:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:31:12,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:31:12,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:31:12,242 INFO L87 Difference]: Start difference. First operand 4289 states and 5566 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:22,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:31:22,580 INFO L93 Difference]: Finished difference Result 5367 states and 7272 transitions. [2023-04-02 08:31:22,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 08:31:22,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2023-04-02 08:31:22,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:31:22,609 INFO L225 Difference]: With dead ends: 5367 [2023-04-02 08:31:22,609 INFO L226 Difference]: Without dead ends: 5364 [2023-04-02 08:31:22,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:31:22,613 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 2959 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 3680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-04-02 08:31:22,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3075 Valid, 1042 Invalid, 3680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1486 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-04-02 08:31:22,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2023-04-02 08:31:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 4288. [2023-04-02 08:31:23,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4288 states, 2834 states have (on average 1.2572335920959774) internal successors, (3563), 2945 states have internal predecessors, (3563), 903 states have call successors, (903), 482 states have call predecessors, (903), 550 states have return successors, (1098), 904 states have call predecessors, (1098), 896 states have call successors, (1098) [2023-04-02 08:31:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4288 states to 4288 states and 5564 transitions. [2023-04-02 08:31:23,689 INFO L78 Accepts]: Start accepts. Automaton has 4288 states and 5564 transitions. Word has length 62 [2023-04-02 08:31:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:31:23,689 INFO L495 AbstractCegarLoop]: Abstraction has 4288 states and 5564 transitions. [2023-04-02 08:31:23,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4288 states and 5564 transitions. [2023-04-02 08:31:23,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 08:31:23,691 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:31:23,692 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 08:31:23,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 08:31:23,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:31:23,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:31:23,692 INFO L85 PathProgramCache]: Analyzing trace with hash 972784245, now seen corresponding path program 1 times [2023-04-02 08:31:23,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:31:23,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700462108] [2023-04-02 08:31:23,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:31:23,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:31:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:23,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:31:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:31:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:31:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:31:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:31:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:31:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700462108] [2023-04-02 08:31:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700462108] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:31:24,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:31:24,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:31:24,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693883580] [2023-04-02 08:31:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:31:24,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:31:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:31:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:31:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:31:24,139 INFO L87 Difference]: Start difference. First operand 4288 states and 5564 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:31:34,330 INFO L93 Difference]: Finished difference Result 5366 states and 7270 transitions. [2023-04-02 08:31:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 08:31:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-04-02 08:31:34,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:31:34,354 INFO L225 Difference]: With dead ends: 5366 [2023-04-02 08:31:34,354 INFO L226 Difference]: Without dead ends: 5363 [2023-04-02 08:31:34,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:31:34,357 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 2996 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 2154 mSolverCounterSat, 1508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3112 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1508 IncrementalHoareTripleChecker+Valid, 2154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-04-02 08:31:34,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3112 Valid, 966 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1508 Valid, 2154 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-04-02 08:31:34,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2023-04-02 08:31:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 4287. [2023-04-02 08:31:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 2834 states have (on average 1.2568807339449541) internal successors, (3562), 2944 states have internal predecessors, (3562), 902 states have call successors, (902), 482 states have call predecessors, (902), 550 states have return successors, (1098), 904 states have call predecessors, (1098), 896 states have call successors, (1098) [2023-04-02 08:31:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 5562 transitions. [2023-04-02 08:31:35,467 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 5562 transitions. Word has length 63 [2023-04-02 08:31:35,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:31:35,468 INFO L495 AbstractCegarLoop]: Abstraction has 4287 states and 5562 transitions. [2023-04-02 08:31:35,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:35,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 5562 transitions. [2023-04-02 08:31:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-02 08:31:35,470 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:31:35,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 08:31:35,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 08:31:35,470 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:31:35,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:31:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash 90940404, now seen corresponding path program 1 times [2023-04-02 08:31:35,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:31:35,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468443497] [2023-04-02 08:31:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:31:35,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:31:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:31:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:31:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:31:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:31:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:31:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:31:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468443497] [2023-04-02 08:31:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468443497] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:31:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:31:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:31:35,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70838413] [2023-04-02 08:31:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:31:35,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:31:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:31:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:31:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:31:35,872 INFO L87 Difference]: Start difference. First operand 4287 states and 5562 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:31:46,373 INFO L93 Difference]: Finished difference Result 5365 states and 7268 transitions. [2023-04-02 08:31:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 08:31:46,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2023-04-02 08:31:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:31:46,394 INFO L225 Difference]: With dead ends: 5365 [2023-04-02 08:31:46,394 INFO L226 Difference]: Without dead ends: 5362 [2023-04-02 08:31:46,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:31:46,397 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 3427 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 1859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 4049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1859 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-04-02 08:31:46,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 1015 Invalid, 4049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1859 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-04-02 08:31:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2023-04-02 08:31:47,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 4286. [2023-04-02 08:31:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4286 states, 2834 states have (on average 1.2565278757939309) internal successors, (3561), 2943 states have internal predecessors, (3561), 901 states have call successors, (901), 482 states have call predecessors, (901), 550 states have return successors, (1098), 904 states have call predecessors, (1098), 896 states have call successors, (1098) [2023-04-02 08:31:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 5560 transitions. [2023-04-02 08:31:47,223 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 5560 transitions. Word has length 64 [2023-04-02 08:31:47,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:31:47,223 INFO L495 AbstractCegarLoop]: Abstraction has 4286 states and 5560 transitions. [2023-04-02 08:31:47,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:47,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 5560 transitions. [2023-04-02 08:31:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 08:31:47,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:31:47,229 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 08:31:47,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 08:31:47,229 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:31:47,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:31:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1476410024, now seen corresponding path program 1 times [2023-04-02 08:31:47,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:31:47,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397856986] [2023-04-02 08:31:47,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:31:47,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:31:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:31:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:31:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:31:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:31:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:31:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:31:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:31:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:31:47,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:31:47,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397856986] [2023-04-02 08:31:47,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397856986] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:31:47,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:31:47,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:31:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126651508] [2023-04-02 08:31:47,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:31:47,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:31:47,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:31:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:31:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:31:47,680 INFO L87 Difference]: Start difference. First operand 4286 states and 5560 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:31:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:31:59,327 INFO L93 Difference]: Finished difference Result 5364 states and 7266 transitions. [2023-04-02 08:31:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 08:31:59,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2023-04-02 08:31:59,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:31:59,353 INFO L225 Difference]: With dead ends: 5364 [2023-04-02 08:31:59,354 INFO L226 Difference]: Without dead ends: 5339 [2023-04-02 08:31:59,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:31:59,358 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2930 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 2759 mSolverCounterSat, 1508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 4267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1508 IncrementalHoareTripleChecker+Valid, 2759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-04-02 08:31:59,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 1039 Invalid, 4267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1508 Valid, 2759 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-04-02 08:31:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2023-04-02 08:32:00,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 4266. [2023-04-02 08:32:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 2822 states have (on average 1.2562012756909993) internal successors, (3545), 2930 states have internal predecessors, (3545), 896 states have call successors, (896), 478 states have call predecessors, (896), 547 states have return successors, (1095), 901 states have call predecessors, (1095), 893 states have call successors, (1095) [2023-04-02 08:32:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 5536 transitions. [2023-04-02 08:32:00,335 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 5536 transitions. Word has length 65 [2023-04-02 08:32:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:32:00,335 INFO L495 AbstractCegarLoop]: Abstraction has 4266 states and 5536 transitions. [2023-04-02 08:32:00,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-02 08:32:00,335 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 5536 transitions. [2023-04-02 08:32:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-02 08:32:00,341 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:32:00,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-02 08:32:00,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 08:32:00,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:32:00,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:32:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1569958917, now seen corresponding path program 1 times [2023-04-02 08:32:00,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:32:00,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83787324] [2023-04-02 08:32:00,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:32:00,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:32:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:32:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:32:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:32:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 08:32:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 08:32:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:32:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:32:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 08:32:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 08:32:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 08:32:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:00,906 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 08:32:00,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:32:00,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83787324] [2023-04-02 08:32:00,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83787324] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:32:00,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:32:00,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 08:32:00,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101035122] [2023-04-02 08:32:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:32:00,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 08:32:00,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:32:00,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 08:32:00,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 08:32:00,909 INFO L87 Difference]: Start difference. First operand 4266 states and 5536 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 10 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 08:32:20,290 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 [] [2023-04-02 08:32:23,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:32:23,135 INFO L93 Difference]: Finished difference Result 13221 states and 18294 transitions. [2023-04-02 08:32:23,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 08:32:23,136 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 10 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2023-04-02 08:32:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:32:23,163 INFO L225 Difference]: With dead ends: 13221 [2023-04-02 08:32:23,163 INFO L226 Difference]: Without dead ends: 8969 [2023-04-02 08:32:23,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-04-02 08:32:23,179 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 3369 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 7134 mSolverCounterSat, 1781 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3530 SdHoareTripleChecker+Valid, 3635 SdHoareTripleChecker+Invalid, 8915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1781 IncrementalHoareTripleChecker+Valid, 7134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2023-04-02 08:32:23,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3530 Valid, 3635 Invalid, 8915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1781 Valid, 7134 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2023-04-02 08:32:23,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2023-04-02 08:32:24,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 6283. [2023-04-02 08:32:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6283 states, 4133 states have (on average 1.241954996370675) internal successors, (5133), 4277 states have internal predecessors, (5133), 1346 states have call successors, (1346), 660 states have call predecessors, (1346), 803 states have return successors, (1759), 1407 states have call predecessors, (1759), 1343 states have call successors, (1759) [2023-04-02 08:32:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 8238 transitions. [2023-04-02 08:32:24,468 INFO L78 Accepts]: Start accepts. Automaton has 6283 states and 8238 transitions. Word has length 128 [2023-04-02 08:32:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:32:24,468 INFO L495 AbstractCegarLoop]: Abstraction has 6283 states and 8238 transitions. [2023-04-02 08:32:24,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 10 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 08:32:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6283 states and 8238 transitions. [2023-04-02 08:32:24,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 08:32:24,475 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:32:24,476 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:32:24,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 08:32:24,476 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:32:24,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:32:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash -820262947, now seen corresponding path program 1 times [2023-04-02 08:32:24,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:32:24,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554034939] [2023-04-02 08:32:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:32:24,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:32:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:32:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:32:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:32:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:32:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 08:32:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:24,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 08:32:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 08:32:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:32:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:32:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 08:32:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 08:32:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 08:32:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:32:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 08:32:25,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:32:25,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554034939] [2023-04-02 08:32:25,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554034939] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:32:25,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:32:25,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 08:32:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282340945] [2023-04-02 08:32:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:32:25,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 08:32:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:32:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 08:32:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:32:25,193 INFO L87 Difference]: Start difference. First operand 6283 states and 8238 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 3 states have internal predecessors, (97), 4 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 08:32:48,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:32:48,720 INFO L93 Difference]: Finished difference Result 17342 states and 23831 transitions. [2023-04-02 08:32:48,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 08:32:48,721 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 3 states have internal predecessors, (97), 4 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 157 [2023-04-02 08:32:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:32:48,764 INFO L225 Difference]: With dead ends: 17342 [2023-04-02 08:32:48,764 INFO L226 Difference]: Without dead ends: 11084 [2023-04-02 08:32:48,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 08:32:48,786 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 5716 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 8745 mSolverCounterSat, 2983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5874 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 11728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2983 IncrementalHoareTripleChecker+Valid, 8745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2023-04-02 08:32:48,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5874 Valid, 2037 Invalid, 11728 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2983 Valid, 8745 Invalid, 0 Unknown, 0 Unchecked, 20.2s Time] [2023-04-02 08:32:48,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2023-04-02 08:32:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 7565. [2023-04-02 08:32:50,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7565 states, 4981 states have (on average 1.2312788596667337) internal successors, (6133), 5135 states have internal predecessors, (6133), 1584 states have call successors, (1584), 840 states have call predecessors, (1584), 999 states have return successors, (2025), 1651 states have call predecessors, (2025), 1581 states have call successors, (2025) [2023-04-02 08:32:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7565 states to 7565 states and 9742 transitions. [2023-04-02 08:32:50,434 INFO L78 Accepts]: Start accepts. Automaton has 7565 states and 9742 transitions. Word has length 157 [2023-04-02 08:32:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:32:50,434 INFO L495 AbstractCegarLoop]: Abstraction has 7565 states and 9742 transitions. [2023-04-02 08:32:50,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 3 states have internal predecessors, (97), 4 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 08:32:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 7565 states and 9742 transitions. [2023-04-02 08:32:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 08:32:50,444 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:32:50,444 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:32:50,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 08:32:50,444 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:32:50,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:32:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 799323540, now seen corresponding path program 1 times [2023-04-02 08:32:50,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:32:50,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524295709] [2023-04-02 08:32:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:32:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:32:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:32:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:32:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:32:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:32:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 08:32:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 08:32:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 08:32:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:32:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 08:32:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:32:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:32:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 08:32:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 08:32:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 08:32:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:32:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:32:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:32:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 08:32:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:32:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524295709] [2023-04-02 08:32:51,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524295709] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:32:51,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:32:51,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 08:32:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472425489] [2023-04-02 08:32:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:32:51,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 08:32:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:32:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 08:32:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:32:51,107 INFO L87 Difference]: Start difference. First operand 7565 states and 9742 transitions. Second operand has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (28), 12 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 08:33:16,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:33:16,765 INFO L93 Difference]: Finished difference Result 21528 states and 28800 transitions. [2023-04-02 08:33:16,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-04-02 08:33:16,766 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (28), 12 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 173 [2023-04-02 08:33:16,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:33:16,819 INFO L225 Difference]: With dead ends: 21528 [2023-04-02 08:33:16,819 INFO L226 Difference]: Without dead ends: 13988 [2023-04-02 08:33:16,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=388, Invalid=1172, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 08:33:16,844 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 6895 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 7347 mSolverCounterSat, 3926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7014 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 11273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3926 IncrementalHoareTripleChecker+Valid, 7347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-04-02 08:33:16,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7014 Valid, 1592 Invalid, 11273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3926 Valid, 7347 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2023-04-02 08:33:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13988 states. [2023-04-02 08:33:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13988 to 10637. [2023-04-02 08:33:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10637 states, 7097 states have (on average 1.241792306608426) internal successors, (8813), 7349 states have internal predecessors, (8813), 2120 states have call successors, (2120), 1176 states have call predecessors, (2120), 1419 states have return successors, (2771), 2211 states have call predecessors, (2771), 2117 states have call successors, (2771) [2023-04-02 08:33:19,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10637 states to 10637 states and 13704 transitions. [2023-04-02 08:33:19,386 INFO L78 Accepts]: Start accepts. Automaton has 10637 states and 13704 transitions. Word has length 173 [2023-04-02 08:33:19,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:33:19,387 INFO L495 AbstractCegarLoop]: Abstraction has 10637 states and 13704 transitions. [2023-04-02 08:33:19,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.384615384615385) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (28), 12 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 08:33:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10637 states and 13704 transitions. [2023-04-02 08:33:19,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-04-02 08:33:19,395 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:33:19,395 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:33:19,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 08:33:19,395 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:33:19,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:33:19,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1432673289, now seen corresponding path program 1 times [2023-04-02 08:33:19,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:33:19,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819364656] [2023-04-02 08:33:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:33:19,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:33:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:33:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:33:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:33:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:33:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 08:33:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:33:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:33:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:33:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 08:33:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 08:33:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 08:33:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 08:33:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 08:33:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 08:33:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 08:33:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 08:33:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 08:33:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:33:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 08:33:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 08:33:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 08:33:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:33:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:20,086 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-04-02 08:33:20,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:33:20,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819364656] [2023-04-02 08:33:20,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819364656] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:33:20,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:33:20,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 08:33:20,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259717479] [2023-04-02 08:33:20,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:33:20,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 08:33:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:33:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 08:33:20,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-04-02 08:33:20,088 INFO L87 Difference]: Start difference. First operand 10637 states and 13704 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 11 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-04-02 08:33:44,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:33:45,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:33:45,526 INFO L93 Difference]: Finished difference Result 34246 states and 46711 transitions. [2023-04-02 08:33:45,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 08:33:45,526 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 11 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 194 [2023-04-02 08:33:45,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:33:45,608 INFO L225 Difference]: With dead ends: 34246 [2023-04-02 08:33:45,608 INFO L226 Difference]: Without dead ends: 23634 [2023-04-02 08:33:45,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2023-04-02 08:33:45,644 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 6654 mSDsluCounter, 2930 mSDsCounter, 0 mSdLazyCounter, 5553 mSolverCounterSat, 4522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6861 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 10075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4522 IncrementalHoareTripleChecker+Valid, 5553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2023-04-02 08:33:45,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6861 Valid, 3713 Invalid, 10075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4522 Valid, 5553 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2023-04-02 08:33:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23634 states. [2023-04-02 08:33:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23634 to 17547. [2023-04-02 08:33:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17547 states, 11852 states have (on average 1.2602092473844078) internal successors, (14936), 12328 states have internal predecessors, (14936), 3436 states have call successors, (3436), 1817 states have call predecessors, (3436), 2258 states have return successors, (4601), 3601 states have call predecessors, (4601), 3433 states have call successors, (4601) [2023-04-02 08:33:49,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17547 states to 17547 states and 22973 transitions. [2023-04-02 08:33:49,704 INFO L78 Accepts]: Start accepts. Automaton has 17547 states and 22973 transitions. Word has length 194 [2023-04-02 08:33:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:33:49,704 INFO L495 AbstractCegarLoop]: Abstraction has 17547 states and 22973 transitions. [2023-04-02 08:33:49,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 11 states have call predecessors, (32), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-04-02 08:33:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 17547 states and 22973 transitions. [2023-04-02 08:33:49,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-02 08:33:49,720 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:33:49,720 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:33:49,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 08:33:49,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:33:49,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:33:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2050038495, now seen corresponding path program 1 times [2023-04-02 08:33:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:33:49,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865271231] [2023-04-02 08:33:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:33:49,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:33:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:33:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:33:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:33:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:33:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:33:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:33:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 08:33:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 08:33:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:33:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 08:33:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:33:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 08:33:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 08:33:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 08:33:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 08:33:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 08:33:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 08:33:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 08:33:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 08:33:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 08:33:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:33:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 08:33:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 08:33:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-04-02 08:33:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:33:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:33:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:33:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2023-04-02 08:33:50,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:33:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865271231] [2023-04-02 08:33:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865271231] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:33:50,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:33:50,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 08:33:50,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062868815] [2023-04-02 08:33:50,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:33:50,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 08:33:50,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:33:50,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 08:33:50,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-04-02 08:33:50,489 INFO L87 Difference]: Start difference. First operand 17547 states and 22973 transitions. Second operand has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 13 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 3 states have call successors, (34) [2023-04-02 08:34:11,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:34:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:34:12,539 INFO L93 Difference]: Finished difference Result 41071 states and 55897 transitions. [2023-04-02 08:34:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 08:34:12,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (37), 13 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 3 states have call successors, (34) Word has length 223 [2023-04-02 08:34:12,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:34:12,623 INFO L225 Difference]: With dead ends: 41071 [2023-04-02 08:34:12,623 INFO L226 Difference]: Without dead ends: 23553 [2023-04-02 08:34:12,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2023-04-02 08:34:12,674 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 6182 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 7568 mSolverCounterSat, 3881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6340 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 11449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3881 IncrementalHoareTripleChecker+Valid, 7568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-04-02 08:34:12,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6340 Valid, 1034 Invalid, 11449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3881 Valid, 7568 Invalid, 0 Unknown, 0 Unchecked, 16.3s Time] [2023-04-02 08:34:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23553 states.