/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:41,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:41,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:41,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:41,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:41,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:41,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:41,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:41,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:41,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:41,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:41,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:41,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:41,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:41,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:41,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:41,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:41,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:41,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:41,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:41,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:41,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:41,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:41,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:41,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:41,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:41,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:41,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:41,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:41,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:41,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:41,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:41,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:41,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:41,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:41,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:41,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:41,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:41,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:41,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:41,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:41,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:13:41,833 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:41,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:41,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:41,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:41,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:41,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:41,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:41,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:41,837 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:41,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:41,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:41,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:41,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:41,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:41,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:41,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:41,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:41,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:41,839 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:41,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:41,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:41,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:41,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:41,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:41,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:41,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:41,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:41,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:41,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:41,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:41,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:41,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:41,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:42,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:42,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:42,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:42,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:42,346 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:42,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2022-10-15 21:13:42,454 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401065f43/ceaf4ff7e3b24d7e94cfb3e24db362c8/FLAG5285bb802 [2022-10-15 21:13:43,721 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:13:43,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2022-10-15 21:13:43,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401065f43/ceaf4ff7e3b24d7e94cfb3e24db362c8/FLAG5285bb802 [2022-10-15 21:13:44,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401065f43/ceaf4ff7e3b24d7e94cfb3e24db362c8 [2022-10-15 21:13:44,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:13:44,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:13:44,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:44,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:13:44,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:13:44,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:44" (1/1) ... [2022-10-15 21:13:44,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e10b85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:44, skipping insertion in model container [2022-10-15 21:13:44,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:44" (1/1) ... [2022-10-15 21:13:44,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:13:44,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:13:45,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i[152066,152079] [2022-10-15 21:13:46,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:46,216 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:13:46,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i[152066,152079] [2022-10-15 21:13:47,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:47,220 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:13:47,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47 WrapperNode [2022-10-15 21:13:47,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:47,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:47,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:13:47,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:13:47,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,429 INFO L138 Inliner]: procedures = 141, calls = 726, calls flagged for inlining = 69, calls inlined = 55, statements flattened = 1737 [2022-10-15 21:13:47,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:47,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:13:47,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:13:47,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:13:47,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:47,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:47,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:47,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:47,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (1/1) ... [2022-10-15 21:13:47,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:47,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:47,791 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) [2022-10-15 21:13:47,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:13:47,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:47,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_write_cmdreg [2022-10-15 21:13:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_write_cmdreg [2022-10-15 21:13:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-15 21:13:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-15 21:13:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:13:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:13:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u8~0~TO~VOID [2022-10-15 21:13:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u8~0~TO~VOID [2022-10-15 21:13:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure set_reset_mode [2022-10-15 21:13:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure set_reset_mode [2022-10-15 21:13:47,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:47,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~~u8~0 [2022-10-15 21:13:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~~u8~0 [2022-10-15 21:13:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_is_absent [2022-10-15 21:13:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_is_absent [2022-10-15 21:13:47,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 21:13:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 21:13:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:47,899 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:13:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:13:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2022-10-15 21:13:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2022-10-15 21:13:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:47,900 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:13:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:13:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:47,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-15 21:13:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-15 21:13:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:13:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:47,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:13:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:13:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2022-10-15 21:13:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2022-10-15 21:13:47,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:13:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:13:47,905 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:13:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:13:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-10-15 21:13:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-10-15 21:13:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:47,908 INFO L130 BoogieDeclarations]: Found specification of procedure sja1000_start [2022-10-15 21:13:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure sja1000_start [2022-10-15 21:13:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:47,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:47,910 INFO L130 BoogieDeclarations]: Found specification of procedure can_change_mtu [2022-10-15 21:13:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure can_change_mtu [2022-10-15 21:13:48,638 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:48,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:50,445 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:51,289 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:51,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:51,315 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 21:13:51,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:51 BoogieIcfgContainer [2022-10-15 21:13:51,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:51,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:51,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:51,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:51,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:13:44" (1/3) ... [2022-10-15 21:13:51,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae05b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:51, skipping insertion in model container [2022-10-15 21:13:51,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:47" (2/3) ... [2022-10-15 21:13:51,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae05b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:51, skipping insertion in model container [2022-10-15 21:13:51,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:51" (3/3) ... [2022-10-15 21:13:51,338 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--can--sja1000--sja1000.ko-entry_point.cil.out.i [2022-10-15 21:13:51,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:51,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-10-15 21:13:51,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:51,490 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f52803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:51,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-10-15 21:13:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 599 states, 420 states have (on average 1.4357142857142857) internal successors, (603), 470 states have internal predecessors, (603), 113 states have call successors, (113), 26 states have call predecessors, (113), 25 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-10-15 21:13:51,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 21:13:51,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:51,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:51,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:13:51,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1671797571, now seen corresponding path program 1 times [2022-10-15 21:13:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:51,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322151436] [2022-10-15 21:13:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:51,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:13:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:52,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322151436] [2022-10-15 21:13:52,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322151436] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:52,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:52,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:52,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608387457] [2022-10-15 21:13:52,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:52,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:52,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:52,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:52,450 INFO L87 Difference]: Start difference. First operand has 599 states, 420 states have (on average 1.4357142857142857) internal successors, (603), 470 states have internal predecessors, (603), 113 states have call successors, (113), 26 states have call predecessors, (113), 25 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:13:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:54,662 INFO L93 Difference]: Finished difference Result 1630 states and 2299 transitions. [2022-10-15 21:13:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:54,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-15 21:13:54,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:54,707 INFO L225 Difference]: With dead ends: 1630 [2022-10-15 21:13:54,708 INFO L226 Difference]: Without dead ends: 1003 [2022-10-15 21:13:54,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:54,737 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 675 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:54,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1685 Invalid, 857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [234 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-15 21:13:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2022-10-15 21:13:54,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 900. [2022-10-15 21:13:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 669 states have (on average 1.3497757847533631) internal successors, (903), 698 states have internal predecessors, (903), 164 states have call successors, (164), 43 states have call predecessors, (164), 43 states have return successors, (164), 163 states have call predecessors, (164), 164 states have call successors, (164) [2022-10-15 21:13:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1231 transitions. [2022-10-15 21:13:54,955 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1231 transitions. Word has length 24 [2022-10-15 21:13:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:54,956 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1231 transitions. [2022-10-15 21:13:54,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:13:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1231 transitions. [2022-10-15 21:13:54,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 21:13:54,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:54,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:54,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:13:54,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1666456558, now seen corresponding path program 1 times [2022-10-15 21:13:54,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:54,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172468674] [2022-10-15 21:13:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:54,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:13:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:13:55,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:55,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172468674] [2022-10-15 21:13:55,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172468674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:55,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:55,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140803491] [2022-10-15 21:13:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:55,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:55,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:55,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:55,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:55,294 INFO L87 Difference]: Start difference. First operand 900 states and 1231 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:57,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:57,097 INFO L93 Difference]: Finished difference Result 2255 states and 3080 transitions. [2022-10-15 21:13:57,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:57,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-10-15 21:13:57,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:57,112 INFO L225 Difference]: With dead ends: 2255 [2022-10-15 21:13:57,112 INFO L226 Difference]: Without dead ends: 1368 [2022-10-15 21:13:57,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:57,122 INFO L413 NwaCegarLoop]: 1180 mSDtfsCounter, 588 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:57,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 2162 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 21:13:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2022-10-15 21:13:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1243. [2022-10-15 21:13:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 938 states have (on average 1.349680170575693) internal successors, (1266), 969 states have internal predecessors, (1266), 220 states have call successors, (220), 61 states have call predecessors, (220), 61 states have return successors, (220), 219 states have call predecessors, (220), 220 states have call successors, (220) [2022-10-15 21:13:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1706 transitions. [2022-10-15 21:13:57,272 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1706 transitions. Word has length 41 [2022-10-15 21:13:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:57,273 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1706 transitions. [2022-10-15 21:13:57,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1706 transitions. [2022-10-15 21:13:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 21:13:57,276 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:57,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:57,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:57,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:13:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1685543619, now seen corresponding path program 1 times [2022-10-15 21:13:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:57,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574914848] [2022-10-15 21:13:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:57,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:13:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:13:57,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:57,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574914848] [2022-10-15 21:13:57,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574914848] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:57,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:57,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:13:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394750711] [2022-10-15 21:13:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:57,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:57,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:57,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:57,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:57,516 INFO L87 Difference]: Start difference. First operand 1243 states and 1706 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:59,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:59,031 INFO L93 Difference]: Finished difference Result 2101 states and 2872 transitions. [2022-10-15 21:13:59,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:59,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-10-15 21:13:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:59,050 INFO L225 Difference]: With dead ends: 2101 [2022-10-15 21:13:59,051 INFO L226 Difference]: Without dead ends: 2099 [2022-10-15 21:13:59,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:59,054 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 663 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:59,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1641 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:13:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2022-10-15 21:13:59,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 1928. [2022-10-15 21:13:59,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1472 states have (on average 1.3478260869565217) internal successors, (1984), 1507 states have internal predecessors, (1984), 334 states have call successors, (334), 98 states have call predecessors, (334), 98 states have return successors, (334), 333 states have call predecessors, (334), 334 states have call successors, (334) [2022-10-15 21:13:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2652 transitions. [2022-10-15 21:13:59,229 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2652 transitions. Word has length 41 [2022-10-15 21:13:59,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:59,230 INFO L495 AbstractCegarLoop]: Abstraction has 1928 states and 2652 transitions. [2022-10-15 21:13:59,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:13:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2652 transitions. [2022-10-15 21:13:59,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 21:13:59,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:59,234 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:13:59,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:13:59,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_irq_1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:13:59,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:59,236 INFO L85 PathProgramCache]: Analyzing trace with hash 621422630, now seen corresponding path program 1 times [2022-10-15 21:13:59,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:59,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619170047] [2022-10-15 21:13:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:59,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:13:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:13:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:13:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-15 21:13:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:13:59,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:59,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619170047] [2022-10-15 21:13:59,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619170047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:59,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:59,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:59,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531167528] [2022-10-15 21:13:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:59,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:59,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:59,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:59,533 INFO L87 Difference]: Start difference. First operand 1928 states and 2652 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:02,423 INFO L93 Difference]: Finished difference Result 6109 states and 8433 transitions. [2022-10-15 21:14:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:14:02,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 51 [2022-10-15 21:14:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:02,464 INFO L225 Difference]: With dead ends: 6109 [2022-10-15 21:14:02,465 INFO L226 Difference]: Without dead ends: 4194 [2022-10-15 21:14:02,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:14:02,483 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1006 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:02,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 2643 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-15 21:14:02,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2022-10-15 21:14:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 3820. [2022-10-15 21:14:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3820 states, 2930 states have (on average 1.3474402730375428) internal successors, (3948), 2997 states have internal predecessors, (3948), 666 states have call successors, (666), 200 states have call predecessors, (666), 200 states have return successors, (666), 644 states have call predecessors, (666), 666 states have call successors, (666) [2022-10-15 21:14:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 5280 transitions. [2022-10-15 21:14:02,790 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 5280 transitions. Word has length 51 [2022-10-15 21:14:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:02,790 INFO L495 AbstractCegarLoop]: Abstraction has 3820 states and 5280 transitions. [2022-10-15 21:14:02,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 5280 transitions. [2022-10-15 21:14:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 21:14:02,794 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:02,795 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:14:02,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:14:02,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_irq_1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:14:02,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:02,796 INFO L85 PathProgramCache]: Analyzing trace with hash -120714429, now seen corresponding path program 1 times [2022-10-15 21:14:02,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:02,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030122409] [2022-10-15 21:14:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:02,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:14:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:14:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:14:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:14:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:03,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:14:03,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:03,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030122409] [2022-10-15 21:14:03,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030122409] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:03,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:03,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:14:03,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906503856] [2022-10-15 21:14:03,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:03,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:14:03,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:03,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:14:03,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:03,153 INFO L87 Difference]: Start difference. First operand 3820 states and 5280 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:06,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:06,307 INFO L93 Difference]: Finished difference Result 10552 states and 14622 transitions. [2022-10-15 21:14:06,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:14:06,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2022-10-15 21:14:06,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:06,383 INFO L225 Difference]: With dead ends: 10552 [2022-10-15 21:14:06,384 INFO L226 Difference]: Without dead ends: 6846 [2022-10-15 21:14:06,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:14:06,421 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 978 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:06,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 2710 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 21:14:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6846 states. [2022-10-15 21:14:06,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6846 to 6250. [2022-10-15 21:14:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6250 states, 4801 states have (on average 1.3463861695480108) internal successors, (6464), 4891 states have internal predecessors, (6464), 1097 states have call successors, (1097), 328 states have call predecessors, (1097), 328 states have return successors, (1097), 1066 states have call predecessors, (1097), 1097 states have call successors, (1097) [2022-10-15 21:14:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6250 states to 6250 states and 8658 transitions. [2022-10-15 21:14:07,003 INFO L78 Accepts]: Start accepts. Automaton has 6250 states and 8658 transitions. Word has length 53 [2022-10-15 21:14:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:07,006 INFO L495 AbstractCegarLoop]: Abstraction has 6250 states and 8658 transitions. [2022-10-15 21:14:07,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 6250 states and 8658 transitions. [2022-10-15 21:14:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:14:07,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:07,012 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:14:07,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:14:07,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_irq_1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:14:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1824988786, now seen corresponding path program 1 times [2022-10-15 21:14:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:07,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248498179] [2022-10-15 21:14:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:14:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:14:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:14:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:14:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:14:07,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:07,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248498179] [2022-10-15 21:14:07,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248498179] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:07,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:07,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:14:07,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885344300] [2022-10-15 21:14:07,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:07,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:14:07,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:14:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:07,376 INFO L87 Difference]: Start difference. First operand 6250 states and 8658 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:10,333 INFO L93 Difference]: Finished difference Result 18288 states and 25397 transitions. [2022-10-15 21:14:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:14:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-10-15 21:14:10,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:10,474 INFO L225 Difference]: With dead ends: 18288 [2022-10-15 21:14:10,474 INFO L226 Difference]: Without dead ends: 12150 [2022-10-15 21:14:10,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:14:10,537 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 977 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:10,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 2719 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-15 21:14:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2022-10-15 21:14:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 11112. [2022-10-15 21:14:11,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 8545 states have (on average 1.3451141018139263) internal successors, (11494), 8680 states have internal predecessors, (11494), 1958 states have call successors, (1958), 585 states have call predecessors, (1958), 585 states have return successors, (1958), 1910 states have call predecessors, (1958), 1958 states have call successors, (1958) [2022-10-15 21:14:11,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 15410 transitions. [2022-10-15 21:14:11,566 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 15410 transitions. Word has length 52 [2022-10-15 21:14:11,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:11,568 INFO L495 AbstractCegarLoop]: Abstraction has 11112 states and 15410 transitions. [2022-10-15 21:14:11,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 15410 transitions. [2022-10-15 21:14:11,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 21:14:11,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:11,573 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:14:11,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:14:11,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_irq_1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:14:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1405800011, now seen corresponding path program 1 times [2022-10-15 21:14:11,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:11,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709795180] [2022-10-15 21:14:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:11,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:14:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:14:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:14:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:14:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:14:11,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:11,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709795180] [2022-10-15 21:14:11,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709795180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:11,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:11,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:14:11,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338367344] [2022-10-15 21:14:11,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:11,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:14:11,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:14:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:11,899 INFO L87 Difference]: Start difference. First operand 11112 states and 15410 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:15,135 INFO L93 Difference]: Finished difference Result 32276 states and 44868 transitions. [2022-10-15 21:14:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:14:15,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2022-10-15 21:14:15,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:15,299 INFO L225 Difference]: With dead ends: 32276 [2022-10-15 21:14:15,300 INFO L226 Difference]: Without dead ends: 21274 [2022-10-15 21:14:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:14:15,377 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 1003 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:15,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2643 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-15 21:14:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21274 states. [2022-10-15 21:14:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21274 to 19467. [2022-10-15 21:14:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19467 states, 14991 states have (on average 1.3444066439863918) internal successors, (20154), 15202 states have internal predecessors, (20154), 3425 states have call successors, (3425), 1027 states have call predecessors, (3425), 1027 states have return successors, (3425), 3347 states have call predecessors, (3425), 3425 states have call successors, (3425) [2022-10-15 21:14:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19467 states to 19467 states and 27004 transitions. [2022-10-15 21:14:17,612 INFO L78 Accepts]: Start accepts. Automaton has 19467 states and 27004 transitions. Word has length 54 [2022-10-15 21:14:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:17,613 INFO L495 AbstractCegarLoop]: Abstraction has 19467 states and 27004 transitions. [2022-10-15 21:14:17,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:14:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 19467 states and 27004 transitions. [2022-10-15 21:14:17,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 21:14:17,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:17,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:14:17,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:14:17,617 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_reset_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_reset_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:14:17,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:17,618 INFO L85 PathProgramCache]: Analyzing trace with hash 265478001, now seen corresponding path program 1 times [2022-10-15 21:14:17,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:17,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933170873] [2022-10-15 21:14:17,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:17,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-15 21:14:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:14:17,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933170873] [2022-10-15 21:14:17,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933170873] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:14:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406507124] [2022-10-15 21:14:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:17,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:14:17,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:14:17,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:14:17,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:14:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:18,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:14:18,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:14:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:14:18,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:14:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:14:18,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406507124] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:14:18,845 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:14:18,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2022-10-15 21:14:18,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116090786] [2022-10-15 21:14:18,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:14:18,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:14:18,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:18,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:14:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:14:18,849 INFO L87 Difference]: Start difference. First operand 19467 states and 27004 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 21:14:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:26,338 INFO L93 Difference]: Finished difference Result 67160 states and 93432 transitions. [2022-10-15 21:14:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 21:14:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2022-10-15 21:14:26,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:27,094 INFO L225 Difference]: With dead ends: 67160 [2022-10-15 21:14:27,095 INFO L226 Difference]: Without dead ends: 67158 [2022-10-15 21:14:27,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:14:27,145 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 4341 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 1239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4683 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 3818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1239 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:27,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4683 Valid, 3270 Invalid, 3818 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1239 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]