/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:40:21,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:40:21,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:40:21,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:40:21,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:40:21,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:40:21,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:40:21,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:40:21,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:40:21,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:40:21,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:40:21,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:40:21,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:40:21,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:40:21,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:40:21,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:40:21,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:40:21,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:40:21,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:40:21,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:40:21,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:40:21,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:40:21,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:40:21,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:40:21,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:40:21,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:40:21,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:40:21,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:40:21,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:40:21,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:40:21,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:40:21,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:40:21,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:40:21,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:40:21,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:40:21,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:40:21,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:40:21,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:40:21,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:40:21,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:40:21,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:40:21,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:40:21,792 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:40:21,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:40:21,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:40:21,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:40:21,794 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:40:21,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:40:21,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:40:21,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:40:21,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:40:21,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:40:21,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:40:21,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:40:21,797 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:40:21,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:40:21,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:40:21,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:40:21,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:40:21,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:40:21,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:40:21,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:40:21,799 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:40:21,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:40:21,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:40:21,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:40:21,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:40:21,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:40:22,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:40:22,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:40:22,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:40:22,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:40:22,289 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:40:22,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2020-12-22 13:40:22,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dd07cd2/87882ba36d1f4b42bd74abd383800c46/FLAGb58b481bc [2020-12-22 13:40:23,546 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:40:23,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2020-12-22 13:40:23,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dd07cd2/87882ba36d1f4b42bd74abd383800c46/FLAGb58b481bc [2020-12-22 13:40:23,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16dd07cd2/87882ba36d1f4b42bd74abd383800c46 [2020-12-22 13:40:23,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:40:23,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:40:23,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:40:23,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:40:23,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:40:23,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:40:23" (1/1) ... [2020-12-22 13:40:23,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a618044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:23, skipping insertion in model container [2020-12-22 13:40:23,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:40:23" (1/1) ... [2020-12-22 13:40:23,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:40:24,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:40:24,564 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2020-12-22 13:40:24,565 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2020-12-22 13:40:24,999 WARN L226 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2020-12-22 13:40:26,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:40:26,526 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:40:26,651 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3747] [2020-12-22 13:40:26,651 WARN L1208 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3748-3749] [2020-12-22 13:40:26,670 WARN L226 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i[117013,117026] [2020-12-22 13:40:27,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:40:27,564 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:40:27,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27 WrapperNode [2020-12-22 13:40:27,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:40:27,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:40:27,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:40:27,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:40:27,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:27,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:28,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:40:28,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:40:28,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:40:28,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:40:28,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:28,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:29,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:29,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:29,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:30,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:30,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... [2020-12-22 13:40:30,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:40:30,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:40:30,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:40:30,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:40:30,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:40:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_resume [2020-12-22 13:40:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_resume [2020-12-22 13:40:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_request [2020-12-22 13:40:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_request [2020-12-22 13:40:30,403 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_pullup [2020-12-22 13:40:30,403 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_pullup [2020-12-22 13:40:30,403 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_disable [2020-12-22 13:40:30,403 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_disable [2020-12-22 13:40:30,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:40:30,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:40:30,404 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_disconnect [2020-12-22 13:40:30,404 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_disconnect [2020-12-22 13:40:30,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:40:30,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:40:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_probe [2020-12-22 13:40:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_probe [2020-12-22 13:40:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:40:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:40:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_udc_stop [2020-12-22 13:40:30,405 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_udc_stop [2020-12-22 13:40:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_req_feature [2020-12-22 13:40:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_req_feature [2020-12-22 13:40:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:40:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 13:40:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 13:40:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_phy_init [2020-12-22 13:40:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_phy_init [2020-12-22 13:40:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:40:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_complete_setup [2020-12-22 13:40:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_complete_setup [2020-12-22 13:40:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_process_control [2020-12-22 13:40:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_process_control [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_disable [2020-12-22 13:40:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_disable [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:40:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:40:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:40:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_phy_enable [2020-12-22 13:40:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_phy_enable [2020-12-22 13:40:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure kill_all_requests [2020-12-22 13:40:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_all_requests [2020-12-22 13:40:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_remove [2020-12-22 13:40:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_remove [2020-12-22 13:40:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:40:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:40:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hsotg_ep_dequeue [2020-12-22 13:40:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hsotg_ep_dequeue [2020-12-22 13:40:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:40:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:40:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 13:40:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:40:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:42:12,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:42:12,169 INFO L299 CfgBuilder]: Removed 4193 assume(true) statements. [2020-12-22 13:42:12,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:42:12 BoogieIcfgContainer [2020-12-22 13:42:12,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:42:12,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:42:12,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:42:12,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:42:12,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:40:23" (1/3) ... [2020-12-22 13:42:12,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3f57b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:42:12, skipping insertion in model container [2020-12-22 13:42:12,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:27" (2/3) ... [2020-12-22 13:42:12,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3f57b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:42:12, skipping insertion in model container [2020-12-22 13:42:12,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:42:12" (3/3) ... [2020-12-22 13:42:12,193 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--dwc2--dwc2_gadget.ko-entry_point.cil.out.i [2020-12-22 13:42:12,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:42:12,209 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-22 13:42:12,228 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 13:42:12,289 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:42:12,289 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:42:12,289 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:42:12,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:42:12,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:42:12,290 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:42:12,290 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:42:12,290 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:42:12,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4715 states. [2020-12-22 13:42:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 13:42:12,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:12,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:12,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:12,385 INFO L82 PathProgramCache]: Analyzing trace with hash 468869916, now seen corresponding path program 1 times [2020-12-22 13:42:12,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:12,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234877399] [2020-12-22 13:42:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:42:13,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234877399] [2020-12-22 13:42:13,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:13,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:42:13,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896506412] [2020-12-22 13:42:13,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:13,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:13,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:13,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:13,801 INFO L87 Difference]: Start difference. First operand 4715 states. Second operand 3 states. [2020-12-22 13:42:14,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:14,146 INFO L93 Difference]: Finished difference Result 9422 states and 12980 transitions. [2020-12-22 13:42:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:14,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-22 13:42:14,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:14,201 INFO L225 Difference]: With dead ends: 9422 [2020-12-22 13:42:14,201 INFO L226 Difference]: Without dead ends: 4618 [2020-12-22 13:42:14,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4618 states. [2020-12-22 13:42:14,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4618 to 4618. [2020-12-22 13:42:14,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4618 states. [2020-12-22 13:42:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 6218 transitions. [2020-12-22 13:42:14,502 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 6218 transitions. Word has length 34 [2020-12-22 13:42:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:14,503 INFO L481 AbstractCegarLoop]: Abstraction has 4618 states and 6218 transitions. [2020-12-22 13:42:14,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 6218 transitions. [2020-12-22 13:42:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-22 13:42:14,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:14,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:14,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:42:14,516 INFO L429 AbstractCegarLoop]: === Iteration 2 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:14,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:14,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1679204309, now seen corresponding path program 1 times [2020-12-22 13:42:14,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:14,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695084326] [2020-12-22 13:42:14,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:42:15,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695084326] [2020-12-22 13:42:15,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:15,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:42:15,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945829888] [2020-12-22 13:42:15,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:15,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:15,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:15,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:15,214 INFO L87 Difference]: Start difference. First operand 4618 states and 6218 transitions. Second operand 3 states. [2020-12-22 13:42:15,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:15,763 INFO L93 Difference]: Finished difference Result 13093 states and 17645 transitions. [2020-12-22 13:42:15,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:15,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-22 13:42:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:15,822 INFO L225 Difference]: With dead ends: 13093 [2020-12-22 13:42:15,822 INFO L226 Difference]: Without dead ends: 8550 [2020-12-22 13:42:15,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:15,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8550 states. [2020-12-22 13:42:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8550 to 8464. [2020-12-22 13:42:16,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8464 states. [2020-12-22 13:42:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8464 states to 8464 states and 11422 transitions. [2020-12-22 13:42:16,120 INFO L78 Accepts]: Start accepts. Automaton has 8464 states and 11422 transitions. Word has length 37 [2020-12-22 13:42:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:16,120 INFO L481 AbstractCegarLoop]: Abstraction has 8464 states and 11422 transitions. [2020-12-22 13:42:16,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8464 states and 11422 transitions. [2020-12-22 13:42:16,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 13:42:16,129 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:16,129 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:16,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:42:16,130 INFO L429 AbstractCegarLoop]: === Iteration 3 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:16,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:16,131 INFO L82 PathProgramCache]: Analyzing trace with hash 664056267, now seen corresponding path program 1 times [2020-12-22 13:42:16,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:16,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679905884] [2020-12-22 13:42:16,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 13:42:17,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679905884] [2020-12-22 13:42:17,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:17,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:42:17,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563078771] [2020-12-22 13:42:17,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:17,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:17,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:17,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:17,091 INFO L87 Difference]: Start difference. First operand 8464 states and 11422 transitions. Second operand 3 states. [2020-12-22 13:42:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:17,442 INFO L93 Difference]: Finished difference Result 11792 states and 15822 transitions. [2020-12-22 13:42:17,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:17,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 13:42:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:17,520 INFO L225 Difference]: With dead ends: 11792 [2020-12-22 13:42:17,520 INFO L226 Difference]: Without dead ends: 11786 [2020-12-22 13:42:17,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:17,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11786 states. [2020-12-22 13:42:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11786 to 9264. [2020-12-22 13:42:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9264 states. [2020-12-22 13:42:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 12430 transitions. [2020-12-22 13:42:17,843 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 12430 transitions. Word has length 78 [2020-12-22 13:42:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:17,844 INFO L481 AbstractCegarLoop]: Abstraction has 9264 states and 12430 transitions. [2020-12-22 13:42:17,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 12430 transitions. [2020-12-22 13:42:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 13:42:17,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:17,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:17,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:42:17,853 INFO L429 AbstractCegarLoop]: === Iteration 4 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:17,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:17,853 INFO L82 PathProgramCache]: Analyzing trace with hash -426126554, now seen corresponding path program 1 times [2020-12-22 13:42:17,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:17,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566889591] [2020-12-22 13:42:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:42:18,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566889591] [2020-12-22 13:42:18,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:18,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:42:18,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775936194] [2020-12-22 13:42:18,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:18,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:18,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:18,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:18,798 INFO L87 Difference]: Start difference. First operand 9264 states and 12430 transitions. Second operand 3 states. [2020-12-22 13:42:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:19,428 INFO L93 Difference]: Finished difference Result 27142 states and 36474 transitions. [2020-12-22 13:42:19,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:19,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-22 13:42:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:19,530 INFO L225 Difference]: With dead ends: 27142 [2020-12-22 13:42:19,530 INFO L226 Difference]: Without dead ends: 17953 [2020-12-22 13:42:19,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17953 states. [2020-12-22 13:42:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17953 to 17941. [2020-12-22 13:42:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17941 states. [2020-12-22 13:42:20,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17941 states to 17941 states and 24120 transitions. [2020-12-22 13:42:20,133 INFO L78 Accepts]: Start accepts. Automaton has 17941 states and 24120 transitions. Word has length 101 [2020-12-22 13:42:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:20,134 INFO L481 AbstractCegarLoop]: Abstraction has 17941 states and 24120 transitions. [2020-12-22 13:42:20,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 17941 states and 24120 transitions. [2020-12-22 13:42:20,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 13:42:20,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:20,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:20,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:42:20,149 INFO L429 AbstractCegarLoop]: === Iteration 5 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:20,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:20,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1502233144, now seen corresponding path program 1 times [2020-12-22 13:42:20,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:20,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604229934] [2020-12-22 13:42:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:42:20,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604229934] [2020-12-22 13:42:20,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:20,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:42:20,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848610346] [2020-12-22 13:42:20,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:20,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:20,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:20,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:20,915 INFO L87 Difference]: Start difference. First operand 17941 states and 24120 transitions. Second operand 3 states. [2020-12-22 13:42:21,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:21,873 INFO L93 Difference]: Finished difference Result 49511 states and 66619 transitions. [2020-12-22 13:42:21,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:21,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-22 13:42:21,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:21,986 INFO L225 Difference]: With dead ends: 49511 [2020-12-22 13:42:21,990 INFO L226 Difference]: Without dead ends: 31645 [2020-12-22 13:42:22,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:22,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31645 states. [2020-12-22 13:42:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31645 to 31635. [2020-12-22 13:42:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31635 states. [2020-12-22 13:42:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31635 states to 31635 states and 42575 transitions. [2020-12-22 13:42:22,919 INFO L78 Accepts]: Start accepts. Automaton has 31635 states and 42575 transitions. Word has length 107 [2020-12-22 13:42:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:22,921 INFO L481 AbstractCegarLoop]: Abstraction has 31635 states and 42575 transitions. [2020-12-22 13:42:22,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:22,921 INFO L276 IsEmpty]: Start isEmpty. Operand 31635 states and 42575 transitions. [2020-12-22 13:42:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-12-22 13:42:22,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:22,944 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:22,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:42:22,944 INFO L429 AbstractCegarLoop]: === Iteration 6 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:22,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1514746379, now seen corresponding path program 1 times [2020-12-22 13:42:22,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:22,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280264252] [2020-12-22 13:42:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:42:23,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280264252] [2020-12-22 13:42:23,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:42:23,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:42:23,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143897588] [2020-12-22 13:42:23,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:42:23,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:23,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:42:23,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:23,895 INFO L87 Difference]: Start difference. First operand 31635 states and 42575 transitions. Second operand 3 states. [2020-12-22 13:42:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:27,046 INFO L93 Difference]: Finished difference Result 63196 states and 85066 transitions. [2020-12-22 13:42:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:42:27,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-12-22 13:42:27,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:27,153 INFO L225 Difference]: With dead ends: 63196 [2020-12-22 13:42:27,153 INFO L226 Difference]: Without dead ends: 31632 [2020-12-22 13:42:27,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:42:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31632 states. [2020-12-22 13:42:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31632 to 31590. [2020-12-22 13:42:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31590 states. [2020-12-22 13:42:28,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31590 states to 31590 states and 42523 transitions. [2020-12-22 13:42:28,425 INFO L78 Accepts]: Start accepts. Automaton has 31590 states and 42523 transitions. Word has length 118 [2020-12-22 13:42:28,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:28,425 INFO L481 AbstractCegarLoop]: Abstraction has 31590 states and 42523 transitions. [2020-12-22 13:42:28,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:42:28,426 INFO L276 IsEmpty]: Start isEmpty. Operand 31590 states and 42523 transitions. [2020-12-22 13:42:28,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-12-22 13:42:28,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:28,450 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:28,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:42:28,450 INFO L429 AbstractCegarLoop]: === Iteration 7 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:28,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1223905719, now seen corresponding path program 1 times [2020-12-22 13:42:28,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:28,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596255493] [2020-12-22 13:42:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 13:42:30,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596255493] [2020-12-22 13:42:30,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081035671] [2020-12-22 13:42:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:42:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:37,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 5737 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 13:42:37,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:42:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 13:42:38,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:42:38,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 13:42:38,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063144607] [2020-12-22 13:42:38,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:42:38,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:42:38,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:42:38,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:42:38,130 INFO L87 Difference]: Start difference. First operand 31590 states and 42523 transitions. Second operand 6 states. [2020-12-22 13:42:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:42:39,215 INFO L93 Difference]: Finished difference Result 63115 states and 84976 transitions. [2020-12-22 13:42:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:42:39,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-12-22 13:42:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:42:39,336 INFO L225 Difference]: With dead ends: 63115 [2020-12-22 13:42:39,337 INFO L226 Difference]: Without dead ends: 31593 [2020-12-22 13:42:39,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:42:39,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31593 states. [2020-12-22 13:42:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31593 to 31593. [2020-12-22 13:42:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31593 states. [2020-12-22 13:42:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31593 states to 31593 states and 42526 transitions. [2020-12-22 13:42:40,604 INFO L78 Accepts]: Start accepts. Automaton has 31593 states and 42526 transitions. Word has length 136 [2020-12-22 13:42:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:42:40,605 INFO L481 AbstractCegarLoop]: Abstraction has 31593 states and 42526 transitions. [2020-12-22 13:42:40,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:42:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 31593 states and 42526 transitions. [2020-12-22 13:42:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-22 13:42:40,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:42:40,629 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:42:40,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-22 13:42:40,845 INFO L429 AbstractCegarLoop]: === Iteration 8 === [s3c_hsotg_process_req_featureErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_process_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, s3c_hsotg_probeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:42:40,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:42:40,845 INFO L82 PathProgramCache]: Analyzing trace with hash -628232126, now seen corresponding path program 2 times [2020-12-22 13:42:40,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:42:40,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036888907] [2020-12-22 13:42:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:42:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:42:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 13:42:42,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036888907] [2020-12-22 13:42:42,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725910426] [2020-12-22 13:42:42,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true