./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:41:14,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:41:14,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:41:14,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:41:14,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:41:14,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:41:14,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:41:14,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:41:14,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:41:14,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:41:14,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:41:14,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:41:14,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:41:14,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:41:14,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:41:14,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:41:14,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:41:14,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:41:14,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:41:14,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:41:14,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:41:14,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:41:14,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:41:14,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:41:14,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:41:14,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:41:14,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:41:14,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:41:14,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:41:14,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:41:14,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:41:14,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:41:14,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:41:14,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:41:14,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:41:14,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:41:14,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:41:14,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:41:14,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:41:14,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:41:14,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:41:14,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:41:14,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:41:14,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:41:14,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:41:14,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:41:14,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:41:14,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:41:14,652 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:41:14,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:41:14,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:41:14,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:41:14,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:41:14,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:41:14,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:41:14,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:41:14,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:41:14,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:41:14,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:41:14,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:41:14,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:41:14,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:14,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:41:14,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:41:14,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:41:14,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:41:14,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:41:14,656 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:41:14,657 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:41:14,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:41:14,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:41:14,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 [2021-11-23 02:41:14,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:41:14,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:41:14,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:41:14,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:41:14,910 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:41:14,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:41:14,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdfb8995/f528cdd98395485296a3f387ab3f1cb7/FLAG539307eb5 [2021-11-23 02:41:15,878 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:41:15,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:41:15,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdfb8995/f528cdd98395485296a3f387ab3f1cb7/FLAG539307eb5 [2021-11-23 02:41:15,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdfb8995/f528cdd98395485296a3f387ab3f1cb7 [2021-11-23 02:41:15,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:41:15,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:41:15,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:15,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:41:16,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:41:16,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:15" (1/1) ... [2021-11-23 02:41:16,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5804c3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:16, skipping insertion in model container [2021-11-23 02:41:16,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:15" (1/1) ... [2021-11-23 02:41:16,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:41:16,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:41:21,781 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2021-11-23 02:41:21,783 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2021-11-23 02:41:21,783 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2021-11-23 02:41:21,783 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2021-11-23 02:41:21,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:21,881 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:41:22,547 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2021-11-23 02:41:22,548 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2021-11-23 02:41:22,549 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2021-11-23 02:41:22,549 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-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2021-11-23 02:41:22,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:22,788 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:41:22,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22 WrapperNode [2021-11-23 02:41:22,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:22,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:22,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:41:22,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:41:22,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:23,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:24,180 INFO L137 Inliner]: procedures = 616, calls = 8909, calls flagged for inlining = 1366, calls inlined = 3124, statements flattened = 45006 [2021-11-23 02:41:24,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:24,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:41:24,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:41:24,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:41:24,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:24,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:24,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:24,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:25,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:25,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:25,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:25,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:41:25,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:41:25,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:41:25,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:41:25,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (1/1) ... [2021-11-23 02:41:25,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:25,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:41:25,732 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) [2021-11-23 02:41:25,744 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 [2021-11-23 02:41:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-23 02:41:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:41:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:41:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:41:25,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:41:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:41:25,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:41:25,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:41:25,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:41:27,084 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:41:27,085 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:44:04,611 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 02:44:04,611 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 02:44:04,611 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 02:44:04,612 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-1: __copy_from_user_nocheck_#t~ret1074#1 := copy_user_generic_#res#1;assume { :end_inline_copy_user_generic } true;__copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1074#1;havoc __copy_from_user_nocheck_#t~ret1074#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:44:04,612 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-3: __copy_from_user_nocheck_#t~ret1074#1 := copy_user_generic_#res#1;assume { :end_inline_copy_user_generic } true;__copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1074#1;havoc __copy_from_user_nocheck_#t~ret1074#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:44:04,612 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-5: __copy_to_user_nocheck_#t~ret1079#1 := copy_user_generic_#res#1;assume { :end_inline_copy_user_generic } true;__copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1079#1;havoc __copy_to_user_nocheck_#t~ret1079#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:44:04,612 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-7: __copy_to_user_nocheck_#t~ret1079#1 := copy_user_generic_#res#1;assume { :end_inline_copy_user_generic } true;__copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1079#1;havoc __copy_to_user_nocheck_#t~ret1079#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-23 02:44:04,612 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680-1: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,613 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684-1: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,614 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688-1: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,615 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692-1: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,616 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696-1: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,617 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700-1: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703-1: assume { :begin_inline_copy_user_generic } true;copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset, copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset, copy_user_generic_#in~len#1 := __copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1;havoc copy_user_generic_#res#1;havoc copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset, copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset, copy_user_generic_~len#1, copy_user_generic_~ret~16#1;copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset := copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset;copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset := copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset;copy_user_generic_~len#1 := copy_user_generic_#in~len#1;havoc copy_user_generic_~ret~16#1;copy_user_generic_#res#1 := copy_user_generic_~ret~16#1 % 4294967296; [2021-11-23 02:44:04,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: assume { :begin_inline_copy_user_generic } true;copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset, copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset, copy_user_generic_#in~len#1 := __copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1;havoc copy_user_generic_#res#1;havoc copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset, copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset, copy_user_generic_~len#1, copy_user_generic_~ret~16#1;copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset := copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset;copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset := copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset;copy_user_generic_~len#1 := copy_user_generic_#in~len#1;havoc copy_user_generic_~ret~16#1;copy_user_generic_#res#1 := copy_user_generic_~ret~16#1 % 4294967296; [2021-11-23 02:44:04,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,618 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume 0 != __copy_from_user_nocheck_~tmp___1~13#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,619 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~13#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789-1: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793-1: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,622 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,622 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,622 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797-1: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,622 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,622 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#1: ldv_switch_4_#res#1 := 0; [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801-1: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,623 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805-1: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,624 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,625 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,626 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809-1: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,626 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: assume { :begin_inline_ldv__builtin_expect } true;ldv__builtin_expect_#in~exp#1, ldv__builtin_expect_#in~c#1 := (if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0;havoc ldv__builtin_expect_#res#1;havoc ldv__builtin_expect_~exp#1, ldv__builtin_expect_~c#1;ldv__builtin_expect_~exp#1 := ldv__builtin_expect_#in~exp#1;ldv__builtin_expect_~c#1 := ldv__builtin_expect_#in~c#1;ldv__builtin_expect_#res#1 := ldv__builtin_expect_~exp#1; [2021-11-23 02:44:04,626 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: assume { :begin_inline_copy_user_generic } true;copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset, copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset, copy_user_generic_#in~len#1 := __copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1;havoc copy_user_generic_#res#1;havoc copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset, copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset, copy_user_generic_~len#1, copy_user_generic_~ret~16#1;copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset := copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset;copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset := copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset;copy_user_generic_~len#1 := copy_user_generic_#in~len#1;havoc copy_user_generic_~ret~16#1;copy_user_generic_#res#1 := copy_user_generic_~ret~16#1 % 4294967296; [2021-11-23 02:44:04,626 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812-1: assume { :begin_inline_copy_user_generic } true;copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset, copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset, copy_user_generic_#in~len#1 := __copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1;havoc copy_user_generic_#res#1;havoc copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset, copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset, copy_user_generic_~len#1, copy_user_generic_~ret~16#1;copy_user_generic_~to#1.base, copy_user_generic_~to#1.offset := copy_user_generic_#in~to#1.base, copy_user_generic_#in~to#1.offset;copy_user_generic_~from#1.base, copy_user_generic_~from#1.offset := copy_user_generic_#in~from#1.base, copy_user_generic_#in~from#1.offset;copy_user_generic_~len#1 := copy_user_generic_#in~len#1;havoc copy_user_generic_~ret~16#1;copy_user_generic_#res#1 := copy_user_generic_~ret~16#1 % 4294967296; [2021-11-23 02:44:04,626 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,627 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,628 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,628 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-11-23 02:44:04,628 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:44:04,630 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6501: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,631 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6502: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6451: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6450: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6347: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6348: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,634 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6264: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-11-23 02:44:04,634 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6265: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-11-23 02:44:04,634 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-6: __copy_from_user_nocheck_#t~ret1073#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1073#1 && __copy_from_user_nocheck_#t~ret1073#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-5: __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-10: __copy_from_user_nocheck_#t~ret1073#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1073#1 && __copy_from_user_nocheck_#t~ret1073#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13#1 := __copy_from_user_nocheck_#t~ret1073#1;havoc __copy_from_user_nocheck_#t~ret1073#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-9: __copy_from_user_nocheck_#t~ret1072#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1072#1 && __copy_from_user_nocheck_#t~ret1072#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23#1 := __copy_from_user_nocheck_#t~ret1072#1;havoc __copy_from_user_nocheck_#t~ret1072#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-14: __copy_to_user_nocheck_#t~ret1078#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1078#1 && __copy_to_user_nocheck_#t~ret1078#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-13: __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2021-11-23 02:44:04,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-16: __copy_to_user_nocheck_#t~ret1077#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1077#1 && __copy_to_user_nocheck_#t~ret1077#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24#1 := __copy_to_user_nocheck_#t~ret1077#1;havoc __copy_to_user_nocheck_#t~ret1077#1; [2021-11-23 02:44:04,636 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-17: __copy_to_user_nocheck_#t~ret1078#1 := ldv__builtin_expect_#res#1;assume { :end_inline_ldv__builtin_expect } true;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1078#1 && __copy_to_user_nocheck_#t~ret1078#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14#1 := __copy_to_user_nocheck_#t~ret1078#1;havoc __copy_to_user_nocheck_#t~ret1078#1; [2021-11-23 02:44:04,638 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:44:04,673 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:44:04,674 INFO L301 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-23 02:44:04,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:04 BoogieIcfgContainer [2021-11-23 02:44:04,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:44:04,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:44:04,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:44:04,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:44:04,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:15" (1/3) ... [2021-11-23 02:44:04,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147dffad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:04, skipping insertion in model container [2021-11-23 02:44:04,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:22" (2/3) ... [2021-11-23 02:44:04,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147dffad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:44:04, skipping insertion in model container [2021-11-23 02:44:04,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:44:04" (3/3) ... [2021-11-23 02:44:04,690 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-23 02:44:04,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:44:04,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2021-11-23 02:44:04,759 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:44:04,766 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:44:04,767 INFO L340 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2021-11-23 02:44:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 7873 states, 7796 states have (on average 1.37108773730118) internal successors, (10689), 7872 states have internal predecessors, (10689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:04,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-23 02:44:04,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:04,890 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:04,891 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1987227512, now seen corresponding path program 1 times [2021-11-23 02:44:04,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:04,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666968899] [2021-11-23 02:44:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:04,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:06,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:06,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666968899] [2021-11-23 02:44:06,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666968899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:06,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:06,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:06,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657009191] [2021-11-23 02:44:06,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:06,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:06,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:06,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:06,054 INFO L87 Difference]: Start difference. First operand has 7873 states, 7796 states have (on average 1.37108773730118) internal successors, (10689), 7872 states have internal predecessors, (10689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:08,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:08,867 INFO L93 Difference]: Finished difference Result 22753 states and 30952 transitions. [2021-11-23 02:44:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:08,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-23 02:44:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:09,183 INFO L225 Difference]: With dead ends: 22753 [2021-11-23 02:44:09,183 INFO L226 Difference]: Without dead ends: 14471 [2021-11-23 02:44:09,207 INFO L932 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 [2021-11-23 02:44:09,210 INFO L933 BasicCegarLoop]: 10530 mSDtfsCounter, 9862 mSDsluCounter, 10501 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9862 SdHoareTripleChecker+Valid, 21031 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:09,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9862 Valid, 21031 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 02:44:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14471 states. [2021-11-23 02:44:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14471 to 14235. [2021-11-23 02:44:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14235 states, 14158 states have (on average 1.327800536798983) internal successors, (18799), 14234 states have internal predecessors, (18799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14235 states to 14235 states and 18799 transitions. [2021-11-23 02:44:09,657 INFO L78 Accepts]: Start accepts. Automaton has 14235 states and 18799 transitions. Word has length 114 [2021-11-23 02:44:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:09,659 INFO L470 AbstractCegarLoop]: Abstraction has 14235 states and 18799 transitions. [2021-11-23 02:44:09,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:09,661 INFO L276 IsEmpty]: Start isEmpty. Operand 14235 states and 18799 transitions. [2021-11-23 02:44:09,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-23 02:44:09,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:09,664 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:09,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:44:09,665 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2131676949, now seen corresponding path program 1 times [2021-11-23 02:44:09,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:09,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105351194] [2021-11-23 02:44:09,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:09,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:10,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:10,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105351194] [2021-11-23 02:44:10,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105351194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:10,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:10,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:10,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767838122] [2021-11-23 02:44:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:10,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:10,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:10,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:10,313 INFO L87 Difference]: Start difference. First operand 14235 states and 18799 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:12,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:13,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:13,259 INFO L93 Difference]: Finished difference Result 34987 states and 46297 transitions. [2021-11-23 02:44:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:13,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-23 02:44:13,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:13,355 INFO L225 Difference]: With dead ends: 34987 [2021-11-23 02:44:13,356 INFO L226 Difference]: Without dead ends: 21005 [2021-11-23 02:44:13,389 INFO L932 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 [2021-11-23 02:44:13,390 INFO L933 BasicCegarLoop]: 9734 mSDtfsCounter, 9014 mSDsluCounter, 9647 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9014 SdHoareTripleChecker+Valid, 19381 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:13,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9014 Valid, 19381 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 02:44:13,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21005 states. [2021-11-23 02:44:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21005 to 20913. [2021-11-23 02:44:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20913 states, 20836 states have (on average 1.3303417162603186) internal successors, (27719), 20912 states have internal predecessors, (27719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20913 states to 20913 states and 27719 transitions. [2021-11-23 02:44:14,022 INFO L78 Accepts]: Start accepts. Automaton has 20913 states and 27719 transitions. Word has length 119 [2021-11-23 02:44:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:14,025 INFO L470 AbstractCegarLoop]: Abstraction has 20913 states and 27719 transitions. [2021-11-23 02:44:14,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:14,026 INFO L276 IsEmpty]: Start isEmpty. Operand 20913 states and 27719 transitions. [2021-11-23 02:44:14,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-23 02:44:14,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:14,036 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:14,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:44:14,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:14,038 INFO L85 PathProgramCache]: Analyzing trace with hash 919879270, now seen corresponding path program 1 times [2021-11-23 02:44:14,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:14,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939103495] [2021-11-23 02:44:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:14,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:14,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:14,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939103495] [2021-11-23 02:44:14,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939103495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:14,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:14,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:14,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458809750] [2021-11-23 02:44:14,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:14,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:14,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:14,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:14,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:14,805 INFO L87 Difference]: Start difference. First operand 20913 states and 27719 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:16,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:17,571 INFO L93 Difference]: Finished difference Result 46757 states and 61927 transitions. [2021-11-23 02:44:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-23 02:44:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:17,652 INFO L225 Difference]: With dead ends: 46757 [2021-11-23 02:44:17,652 INFO L226 Difference]: Without dead ends: 26097 [2021-11-23 02:44:17,699 INFO L932 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 [2021-11-23 02:44:17,703 INFO L933 BasicCegarLoop]: 9738 mSDtfsCounter, 2527 mSDsluCounter, 9708 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2527 SdHoareTripleChecker+Valid, 19446 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:17,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2527 Valid, 19446 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 02:44:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26097 states. [2021-11-23 02:44:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26097 to 25921. [2021-11-23 02:44:18,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25921 states, 25844 states have (on average 1.3269617706237424) internal successors, (34294), 25920 states have internal predecessors, (34294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:18,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25921 states to 25921 states and 34294 transitions. [2021-11-23 02:44:18,389 INFO L78 Accepts]: Start accepts. Automaton has 25921 states and 34294 transitions. Word has length 122 [2021-11-23 02:44:18,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:18,390 INFO L470 AbstractCegarLoop]: Abstraction has 25921 states and 34294 transitions. [2021-11-23 02:44:18,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:18,391 INFO L276 IsEmpty]: Start isEmpty. Operand 25921 states and 34294 transitions. [2021-11-23 02:44:18,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-23 02:44:18,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:18,394 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:18,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:44:18,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:18,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:18,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1608755015, now seen corresponding path program 1 times [2021-11-23 02:44:18,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:18,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099843828] [2021-11-23 02:44:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:18,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:19,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:19,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099843828] [2021-11-23 02:44:19,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099843828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:19,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:19,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:19,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113863064] [2021-11-23 02:44:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:19,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:19,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:19,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:19,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:19,094 INFO L87 Difference]: Start difference. First operand 25921 states and 34294 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:21,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:22,289 INFO L93 Difference]: Finished difference Result 64451 states and 85619 transitions. [2021-11-23 02:44:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-23 02:44:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:22,398 INFO L225 Difference]: With dead ends: 64451 [2021-11-23 02:44:22,398 INFO L226 Difference]: Without dead ends: 38783 [2021-11-23 02:44:22,455 INFO L932 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 [2021-11-23 02:44:22,456 INFO L933 BasicCegarLoop]: 9739 mSDtfsCounter, 8480 mSDsluCounter, 9690 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8480 SdHoareTripleChecker+Valid, 19429 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:22,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8480 Valid, 19429 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 02:44:22,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38783 states. [2021-11-23 02:44:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38783 to 38533. [2021-11-23 02:44:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38533 states, 38456 states have (on average 1.3351362596213854) internal successors, (51344), 38532 states have internal predecessors, (51344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:23,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38533 states to 38533 states and 51344 transitions. [2021-11-23 02:44:23,623 INFO L78 Accepts]: Start accepts. Automaton has 38533 states and 51344 transitions. Word has length 130 [2021-11-23 02:44:23,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:23,624 INFO L470 AbstractCegarLoop]: Abstraction has 38533 states and 51344 transitions. [2021-11-23 02:44:23,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:23,625 INFO L276 IsEmpty]: Start isEmpty. Operand 38533 states and 51344 transitions. [2021-11-23 02:44:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-23 02:44:23,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:23,628 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:23,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:44:23,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash -961540694, now seen corresponding path program 1 times [2021-11-23 02:44:23,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:23,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850894767] [2021-11-23 02:44:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:23,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:24,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850894767] [2021-11-23 02:44:24,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850894767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:24,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:24,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:24,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984326897] [2021-11-23 02:44:24,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:24,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:24,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:24,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:24,129 INFO L87 Difference]: Start difference. First operand 38533 states and 51344 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:26,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:27,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:27,307 INFO L93 Difference]: Finished difference Result 102333 states and 136343 transitions. [2021-11-23 02:44:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:27,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-23 02:44:27,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:27,459 INFO L225 Difference]: With dead ends: 102333 [2021-11-23 02:44:27,459 INFO L226 Difference]: Without dead ends: 64053 [2021-11-23 02:44:27,535 INFO L932 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 [2021-11-23 02:44:27,538 INFO L933 BasicCegarLoop]: 16663 mSDtfsCounter, 9437 mSDsluCounter, 9644 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9437 SdHoareTripleChecker+Valid, 26307 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:27,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9437 Valid, 26307 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 02:44:27,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64053 states. [2021-11-23 02:44:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64053 to 63871. [2021-11-23 02:44:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63871 states, 63794 states have (on average 1.3343731385396747) internal successors, (85125), 63870 states have internal predecessors, (85125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63871 states to 63871 states and 85125 transitions. [2021-11-23 02:44:29,258 INFO L78 Accepts]: Start accepts. Automaton has 63871 states and 85125 transitions. Word has length 141 [2021-11-23 02:44:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:29,258 INFO L470 AbstractCegarLoop]: Abstraction has 63871 states and 85125 transitions. [2021-11-23 02:44:29,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 63871 states and 85125 transitions. [2021-11-23 02:44:29,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:44:29,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:29,270 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:29,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:44:29,271 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:29,272 INFO L85 PathProgramCache]: Analyzing trace with hash -339744219, now seen corresponding path program 1 times [2021-11-23 02:44:29,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:29,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220604838] [2021-11-23 02:44:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:29,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:29,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:29,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220604838] [2021-11-23 02:44:29,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220604838] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:29,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:29,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:29,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214446549] [2021-11-23 02:44:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:29,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:29,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:29,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:29,909 INFO L87 Difference]: Start difference. First operand 63871 states and 85125 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:32,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:34,043 INFO L93 Difference]: Finished difference Result 187809 states and 250770 transitions. [2021-11-23 02:44:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:34,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-23 02:44:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:34,479 INFO L225 Difference]: With dead ends: 187809 [2021-11-23 02:44:34,479 INFO L226 Difference]: Without dead ends: 124971 [2021-11-23 02:44:34,569 INFO L932 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 [2021-11-23 02:44:34,571 INFO L933 BasicCegarLoop]: 11991 mSDtfsCounter, 9190 mSDsluCounter, 9695 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9190 SdHoareTripleChecker+Valid, 21686 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:34,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9190 Valid, 21686 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 02:44:34,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124971 states. [2021-11-23 02:44:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124971 to 124871. [2021-11-23 02:44:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124871 states, 124794 states have (on average 1.3358094139141306) internal successors, (166701), 124870 states have internal predecessors, (166701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124871 states to 124871 states and 166701 transitions. [2021-11-23 02:44:37,373 INFO L78 Accepts]: Start accepts. Automaton has 124871 states and 166701 transitions. Word has length 171 [2021-11-23 02:44:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:37,373 INFO L470 AbstractCegarLoop]: Abstraction has 124871 states and 166701 transitions. [2021-11-23 02:44:37,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 124871 states and 166701 transitions. [2021-11-23 02:44:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-23 02:44:37,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:37,379 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:37,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:44:37,380 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2145182553, now seen corresponding path program 1 times [2021-11-23 02:44:37,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:37,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207561341] [2021-11-23 02:44:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:37,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:44:38,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:38,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207561341] [2021-11-23 02:44:38,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207561341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:38,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:38,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:38,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357029250] [2021-11-23 02:44:38,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:38,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:38,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:38,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:38,148 INFO L87 Difference]: Start difference. First operand 124871 states and 166701 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:40,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:44,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:44,132 INFO L93 Difference]: Finished difference Result 309825 states and 413954 transitions. [2021-11-23 02:44:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:44,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-23 02:44:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:44,604 INFO L225 Difference]: With dead ends: 309825 [2021-11-23 02:44:44,604 INFO L226 Difference]: Without dead ends: 185987 [2021-11-23 02:44:44,795 INFO L932 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 [2021-11-23 02:44:44,796 INFO L933 BasicCegarLoop]: 18926 mSDtfsCounter, 9224 mSDsluCounter, 9662 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9224 SdHoareTripleChecker+Valid, 28588 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:44,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9224 Valid, 28588 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-23 02:44:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185987 states. [2021-11-23 02:44:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185987 to 185632. [2021-11-23 02:44:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185632 states, 185555 states have (on average 1.3367357387297567) internal successors, (248038), 185631 states have internal predecessors, (248038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185632 states to 185632 states and 248038 transitions. [2021-11-23 02:44:49,628 INFO L78 Accepts]: Start accepts. Automaton has 185632 states and 248038 transitions. Word has length 171 [2021-11-23 02:44:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:49,629 INFO L470 AbstractCegarLoop]: Abstraction has 185632 states and 248038 transitions. [2021-11-23 02:44:49,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 185632 states and 248038 transitions. [2021-11-23 02:44:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 02:44:49,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:49,635 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:49,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:44:49,636 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:49,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1806700780, now seen corresponding path program 1 times [2021-11-23 02:44:49,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:49,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193640862] [2021-11-23 02:44:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:49,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:44:50,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:50,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193640862] [2021-11-23 02:44:50,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193640862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:50,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:50,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:50,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944814466] [2021-11-23 02:44:50,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:50,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:44:50,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:50,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:44:50,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:44:50,425 INFO L87 Difference]: Start difference. First operand 185632 states and 248038 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:53,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:53,568 INFO L93 Difference]: Finished difference Result 185632 states and 248038 transitions. [2021-11-23 02:44:53,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:44:53,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-23 02:44:53,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:53,987 INFO L225 Difference]: With dead ends: 185632 [2021-11-23 02:44:53,987 INFO L226 Difference]: Without dead ends: 185626 [2021-11-23 02:44:54,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:44:54,065 INFO L933 BasicCegarLoop]: 9739 mSDtfsCounter, 9595 mSDsluCounter, 9670 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9595 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:54,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9595 Valid, 19409 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:44:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185626 states. [2021-11-23 02:44:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185626 to 185626. [2021-11-23 02:44:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185626 states, 185552 states have (on average 1.3367250150901095) internal successors, (248032), 185625 states have internal predecessors, (248032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185626 states to 185626 states and 248032 transitions. [2021-11-23 02:44:58,908 INFO L78 Accepts]: Start accepts. Automaton has 185626 states and 248032 transitions. Word has length 175 [2021-11-23 02:44:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:58,909 INFO L470 AbstractCegarLoop]: Abstraction has 185626 states and 248032 transitions. [2021-11-23 02:44:58,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:44:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 185626 states and 248032 transitions. [2021-11-23 02:44:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-23 02:44:58,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:58,916 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:58,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:44:58,917 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-23 02:44:58,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1072833647, now seen corresponding path program 1 times [2021-11-23 02:44:58,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:44:58,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878694994] [2021-11-23 02:44:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:58,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 02:44:59,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:44:59,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878694994] [2021-11-23 02:44:59,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878694994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:59,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:59,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:59,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091537391] [2021-11-23 02:44:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:59,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:44:59,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:44:59,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:44:59,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:44:59,590 INFO L87 Difference]: Start difference. First operand 185626 states and 248032 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)