/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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:19:54,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:19:54,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:19:54,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:19:54,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:19:54,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:19:54,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:19:54,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:19:54,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:19:54,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:19:54,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:19:54,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:19:54,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:19:54,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:19:54,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:19:54,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:19:54,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:19:54,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:19:54,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:19:54,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:19:54,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:19:54,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:19:54,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:19:54,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:19:54,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:19:54,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:19:54,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:19:54,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:19:54,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:19:54,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:19:54,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:19:54,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:19:54,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:19:54,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:19:54,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:19:54,720 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:19:54,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:19:54,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:19:54,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:19:54,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:19:54,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:19:54,724 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 21:19:54,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:19:54,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:19:54,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:19:54,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:19:54,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:19:54,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:19:54,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:19:54,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:19:54,758 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:19:54,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:19:54,758 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:19:54,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:19:54,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:19:54,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:19:54,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:19:54,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:19:54,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:19:54,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:19:54,760 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:19:54,760 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:19:54,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:19:54,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:19:54,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:19:54,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:19:54,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:19:54,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:19:54,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:54,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:19:54,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:19:54,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:19:54,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:19:54,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:19:54,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:19:54,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:19:55,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:19:55,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:19:55,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:19:55,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:19:55,206 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:19:55,207 INFO L432 ainManager$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--serial--sierra.ko-entry_point.cil.out.i [2022-10-15 21:19:55,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01b637e6/48c8d1812be9488590d9a7a2d1b322ba/FLAG00d1563f2 [2022-10-15 21:19:56,432 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:19:56,434 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--serial--sierra.ko-entry_point.cil.out.i [2022-10-15 21:19:56,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01b637e6/48c8d1812be9488590d9a7a2d1b322ba/FLAG00d1563f2 [2022-10-15 21:19:56,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a01b637e6/48c8d1812be9488590d9a7a2d1b322ba [2022-10-15 21:19:56,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:19:56,778 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:19:56,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:56,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:19:56,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:19:56,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:56" (1/1) ... [2022-10-15 21:19:56,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9864a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:56, skipping insertion in model container [2022-10-15 21:19:56,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:56" (1/1) ... [2022-10-15 21:19:56,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:19:56,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:19:57,617 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2022-10-15 21:19:57,618 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2022-10-15 21:19:57,944 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i[114996,115009] [2022-10-15 21:19:59,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:59,107 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:19:59,365 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2022-10-15 21:19:59,366 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2022-10-15 21:19:59,391 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i[114996,115009] [2022-10-15 21:19:59,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:59,854 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:19:59,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59 WrapperNode [2022-10-15 21:19:59,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:59,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:19:59,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:19:59,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:19:59,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:19:59,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,243 INFO L138 Inliner]: procedures = 157, calls = 2002, calls flagged for inlining = 60, calls inlined = 53, statements flattened = 3446 [2022-10-15 21:20:00,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:00,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:20:00,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:20:00,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:20:00,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:20:00,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:20:00,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:20:00,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:20:00,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (1/1) ... [2022-10-15 21:20:00,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:00,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:00,683 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 21:20:00,691 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 21:20:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:20:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:20:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:20:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:20:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:20:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmget [2022-10-15 21:20:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmget [2022-10-15 21:20:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-10-15 21:20:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-10-15 21:20:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:20:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:20:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:20:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:20:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-10-15 21:20:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-10-15 21:20:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:20:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_interface [2022-10-15 21:20:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_interface [2022-10-15 21:20:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2022-10-15 21:20:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2022-10-15 21:20:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_resume [2022-10-15 21:20:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_resume [2022-10-15 21:20:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:20:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:20:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:20:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:20:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:20:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:20:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_close [2022-10-15 21:20:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_close [2022-10-15 21:20:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:20:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:20:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:20:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:20:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write [2022-10-15 21:20:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write [2022-10-15 21:20:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_rx_urbs [2022-10-15 21:20:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_rx_urbs [2022-10-15 21:20:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_probe [2022-10-15 21:20:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_probe [2022-10-15 21:20:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_send_setup [2022-10-15 21:20:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_send_setup [2022-10-15 21:20:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-10-15 21:20:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-10-15 21:20:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:20:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:20:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-10-15 21:20:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-10-15 21:20:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2022-10-15 21:20:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2022-10-15 21:20:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:20:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-15 21:20:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-15 21:20:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:20:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:20:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-15 21:20:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-15 21:20:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:20:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:20:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:20:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:20:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-10-15 21:20:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-10-15 21:20:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:20:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:20:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2022-10-15 21:20:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2022-10-15 21:20:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:20:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-10-15 21:20:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-10-15 21:20:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:20:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:20:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:20:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:20:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:20:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_dtr_rts [2022-10-15 21:20:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_dtr_rts [2022-10-15 21:20:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-15 21:20:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-15 21:20:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:20:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:20:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:20:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_chars_in_buffer [2022-10-15 21:20:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_chars_in_buffer [2022-10-15 21:20:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:20:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:20:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:20:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:20:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:20:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:20:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-10-15 21:20:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-10-15 21:20:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write_room [2022-10-15 21:20:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write_room [2022-10-15 21:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_instat_callback [2022-10-15 21:20:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_instat_callback [2022-10-15 21:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_stop_rx_urbs [2022-10-15 21:20:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_stop_rx_urbs [2022-10-15 21:20:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:20:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:20:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:20:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:20:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_remove [2022-10-15 21:20:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_remove [2022-10-15 21:20:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:20:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:20:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_num_ports [2022-10-15 21:20:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_num_ports [2022-10-15 21:20:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-10-15 21:20:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-10-15 21:20:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmset [2022-10-15 21:20:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmset [2022-10-15 21:20:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release_urb [2022-10-15 21:20:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release_urb [2022-10-15 21:20:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:20:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:20:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:20:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_open [2022-10-15 21:20:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_open [2022-10-15 21:20:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2022-10-15 21:20:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2022-10-15 21:20:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-10-15 21:20:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-10-15 21:20:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:20:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_suspend [2022-10-15 21:20:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_suspend [2022-10-15 21:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:20:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:20:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:20:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:20:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:20:01,635 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:20:01,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:20:12,882 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:20:17,262 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:20:17,281 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:20:17,282 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:20:17,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:17 BoogieIcfgContainer [2022-10-15 21:20:17,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:20:17,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:20:17,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:20:17,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:20:17,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:19:56" (1/3) ... [2022-10-15 21:20:17,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232b5eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:17, skipping insertion in model container [2022-10-15 21:20:17,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:59" (2/3) ... [2022-10-15 21:20:17,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232b5eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:17, skipping insertion in model container [2022-10-15 21:20:17,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:17" (3/3) ... [2022-10-15 21:20:17,298 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2022-10-15 21:20:17,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:20:17,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-10-15 21:20:17,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:20:17,437 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;@b20f4e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:20:17,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-10-15 21:20:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 1060 states, 708 states have (on average 1.3898305084745763) internal successors, (984), 776 states have internal predecessors, (984), 237 states have call successors, (237), 59 states have call predecessors, (237), 58 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-10-15 21:20:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 21:20:17,467 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:17,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:17,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting sierra_calc_num_portsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sierra_resumeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-15 21:20:17,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:17,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1374706555, now seen corresponding path program 1 times [2022-10-15 21:20:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:17,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981661233] [2022-10-15 21:20:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:20:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:20:18,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:18,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981661233] [2022-10-15 21:20:18,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981661233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:18,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:18,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:18,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938486401] [2022-10-15 21:20:18,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:18,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:18,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:18,485 INFO L87 Difference]: Start difference. First operand has 1060 states, 708 states have (on average 1.3898305084745763) internal successors, (984), 776 states have internal predecessors, (984), 237 states have call successors, (237), 59 states have call predecessors, (237), 58 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:20:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:23,078 INFO L93 Difference]: Finished difference Result 2253 states and 3195 transitions. [2022-10-15 21:20:23,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:23,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2022-10-15 21:20:23,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:23,140 INFO L225 Difference]: With dead ends: 2253 [2022-10-15 21:20:23,140 INFO L226 Difference]: Without dead ends: 1183 [2022-10-15 21:20:23,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 21:20:23,173 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 666 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:23,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 2581 Invalid, 1383 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-15 21:20:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2022-10-15 21:20:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1041. [2022-10-15 21:20:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 699 states have (on average 1.3733905579399142) internal successors, (960), 758 states have internal predecessors, (960), 233 states have call successors, (233), 57 states have call predecessors, (233), 57 states have return successors, (233), 231 states have call predecessors, (233), 233 states have call successors, (233) [2022-10-15 21:20:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1426 transitions. [2022-10-15 21:20:23,469 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1426 transitions. Word has length 42 [2022-10-15 21:20:23,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:23,471 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1426 transitions. [2022-10-15 21:20:23,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:20:23,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1426 transitions. [2022-10-15 21:20:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 21:20:23,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:23,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:23,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:20:23,490 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sierra_resumeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-15 21:20:23,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:23,491 INFO L85 PathProgramCache]: Analyzing trace with hash 320979482, now seen corresponding path program 1 times [2022-10-15 21:20:23,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:23,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584396829] [2022-10-15 21:20:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:23,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:20:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 21:20:24,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:24,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584396829] [2022-10-15 21:20:24,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584396829] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:24,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:24,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:20:24,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980955431] [2022-10-15 21:20:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:24,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:24,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:24,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:24,221 INFO L87 Difference]: Start difference. First operand 1041 states and 1426 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:20:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:29,867 INFO L93 Difference]: Finished difference Result 2250 states and 3102 transitions. [2022-10-15 21:20:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:20:29,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2022-10-15 21:20:29,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:29,888 INFO L225 Difference]: With dead ends: 2250 [2022-10-15 21:20:29,889 INFO L226 Difference]: Without dead ends: 1220 [2022-10-15 21:20:29,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:20:29,899 INFO L413 NwaCegarLoop]: 1305 mSDtfsCounter, 730 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:29,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 3261 Invalid, 2099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-15 21:20:29,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2022-10-15 21:20:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1073. [2022-10-15 21:20:30,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 727 states have (on average 1.3713892709766162) internal successors, (997), 786 states have internal predecessors, (997), 234 states have call successors, (234), 60 states have call predecessors, (234), 60 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-10-15 21:20:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1465 transitions. [2022-10-15 21:20:30,083 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1465 transitions. Word has length 49 [2022-10-15 21:20:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:30,084 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1465 transitions. [2022-10-15 21:20:30,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:20:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1465 transitions. [2022-10-15 21:20:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 21:20:30,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:30,089 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:20:30,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:20:30,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sierra_resumeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-15 21:20:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash 625408029, now seen corresponding path program 1 times [2022-10-15 21:20:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:30,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816675933] [2022-10-15 21:20:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:20:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-15 21:20:30,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:30,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816675933] [2022-10-15 21:20:30,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816675933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:30,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:30,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:30,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729242419] [2022-10-15 21:20:30,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:30,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:30,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:30,904 INFO L87 Difference]: Start difference. First operand 1073 states and 1465 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-15 21:20:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:36,850 INFO L93 Difference]: Finished difference Result 1543 states and 2234 transitions. [2022-10-15 21:20:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:36,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2022-10-15 21:20:36,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:36,866 INFO L225 Difference]: With dead ends: 1543 [2022-10-15 21:20:36,866 INFO L226 Difference]: Without dead ends: 1541 [2022-10-15 21:20:36,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:20:36,870 INFO L413 NwaCegarLoop]: 1764 mSDtfsCounter, 989 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 4635 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:36,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 4635 Invalid, 2046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [606 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-10-15 21:20:36,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-10-15 21:20:36,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1079. [2022-10-15 21:20:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 733 states have (on average 1.3710777626193724) internal successors, (1005), 792 states have internal predecessors, (1005), 234 states have call successors, (234), 60 states have call predecessors, (234), 60 states have return successors, (234), 232 states have call predecessors, (234), 234 states have call successors, (234) [2022-10-15 21:20:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1473 transitions. [2022-10-15 21:20:36,959 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1473 transitions. Word has length 79 [2022-10-15 21:20:36,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:36,960 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1473 transitions. [2022-10-15 21:20:36,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-15 21:20:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1473 transitions. [2022-10-15 21:20:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 21:20:36,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:36,965 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:20:36,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:20:36,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [sierra_resumeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sierra_resumeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-15 21:20:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1250826045, now seen corresponding path program 1 times [2022-10-15 21:20:36,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:36,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845327054] [2022-10-15 21:20:36,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:36,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:20:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:20:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:20:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:20:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:20:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:20:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-15 21:20:37,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:37,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845327054] [2022-10-15 21:20:37,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845327054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:37,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:37,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:37,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825811580] [2022-10-15 21:20:37,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:37,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:37,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:37,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:37,903 INFO L87 Difference]: Start difference. First operand 1079 states and 1473 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)