./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.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 bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:37:13,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:37:13,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:37:13,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:37:13,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:37:13,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:37:13,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:37:13,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:37:13,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:37:13,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:37:13,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:37:13,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:37:13,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:37:13,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:37:13,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:37:13,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:37:13,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:37:13,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:37:13,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:37:13,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:37:13,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:37:13,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:37:13,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:37:13,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:37:13,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:37:13,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:37:13,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:37:13,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:37:13,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:37:13,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:37:13,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:37:13,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:37:13,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:37:13,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:37:13,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:37:13,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:37:13,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:37:13,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:37:13,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:37:13,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:37:13,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:37:13,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:37:13,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:37:13,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:37:13,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:37:13,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:37:13,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:37:13,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:37:13,613 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:37:13,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:37:13,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:37:13,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:37:13,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:37:13,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:37:13,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:37:13,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:37:13,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:37:13,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:37:13,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:37:13,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:37:13,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-06 20:37:13,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:37:13,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:37:13,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:37:13,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:37:13,867 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:37:13,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 20:37:13,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98d2612a8/684755bd4bae41f0abb119d619afeca3/FLAG8aa78d9c9 [2021-11-06 20:37:14,646 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:37:14,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 20:37:14,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98d2612a8/684755bd4bae41f0abb119d619afeca3/FLAG8aa78d9c9 [2021-11-06 20:37:15,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98d2612a8/684755bd4bae41f0abb119d619afeca3 [2021-11-06 20:37:15,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:37:15,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:37:15,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:37:15,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:37:15,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:37:15,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:37:15" (1/1) ... [2021-11-06 20:37:15,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b287614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:15, skipping insertion in model container [2021-11-06 20:37:15,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:37:15" (1/1) ... [2021-11-06 20:37:15,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:37:15,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:37:18,171 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-06 20:37:18,174 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-06 20:37:18,175 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-06 20:37:18,175 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-06 20:37:18,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:37:18,283 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:37:18,775 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-06 20:37:18,776 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-06 20:37:18,777 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-06 20:37:18,777 WARN L228 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-06 20:37:18,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:37:18,943 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:37:18,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18 WrapperNode [2021-11-06 20:37:18,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:37:18,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:37:18,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:37:18,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:37:18,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:19,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:19,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:37:19,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:37:19,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:37:19,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:37:19,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:19,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:19,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:19,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:20,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:20,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:20,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:20,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:37:20,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:37:20,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:37:20,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:37:20,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (1/1) ... [2021-11-06 20:37:20,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:37:20,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:37:20,539 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) [2021-11-06 20:37:20,567 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 [2021-11-06 20:37:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-06 20:37:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-06 20:37:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:37:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-06 20:37:20,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:37:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:37:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-06 20:37:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-06 20:37:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:37:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:37:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:37:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 20:37:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:37:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:37:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:37:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:37:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:37:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:37:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 20:37:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 20:37:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:37:55,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 20:37:55,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:37:55,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:37:55,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 20:37:55,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 20:37:55,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 20:37:55,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:37:55,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:37:55,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:37:55,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:37:55,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:37:55,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:37:57,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:37:57,167 INFO L299 CfgBuilder]: Removed 5371 assume(true) statements. [2021-11-06 20:37:57,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:37:57 BoogieIcfgContainer [2021-11-06 20:37:57,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:37:57,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:37:57,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:37:57,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:37:57,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:37:15" (1/3) ... [2021-11-06 20:37:57,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b3c767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:37:57, skipping insertion in model container [2021-11-06 20:37:57,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:37:18" (2/3) ... [2021-11-06 20:37:57,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b3c767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:37:57, skipping insertion in model container [2021-11-06 20:37:57,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:37:57" (3/3) ... [2021-11-06 20:37:57,182 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 20:37:57,186 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:37:57,186 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-06 20:37:57,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:37:57,245 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 [2021-11-06 20:37:57,246 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-06 20:37:57,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 5496 states, 5423 states have (on average 1.3155080213903743) internal successors, (7134), 5476 states have internal predecessors, (7134), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-06 20:37:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-06 20:37:57,336 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:37:57,337 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:37:57,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:37:57,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:37:57,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1185104780, now seen corresponding path program 1 times [2021-11-06 20:37:57,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:37:57,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086526740] [2021-11-06 20:37:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:37:57,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:37:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:37:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:37:58,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:37:58,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086526740] [2021-11-06 20:37:58,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086526740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:37:58,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:37:58,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:37:58,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083585688] [2021-11-06 20:37:58,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:37:58,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:37:58,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:37:58,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:37:58,279 INFO L87 Difference]: Start difference. First operand has 5496 states, 5423 states have (on average 1.3155080213903743) internal successors, (7134), 5476 states have internal predecessors, (7134), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-06 20:38:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:01,094 INFO L93 Difference]: Finished difference Result 15264 states and 19948 transitions. [2021-11-06 20:38:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:01,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2021-11-06 20:38:01,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:01,155 INFO L225 Difference]: With dead ends: 15264 [2021-11-06 20:38:01,155 INFO L226 Difference]: Without dead ends: 9450 [2021-11-06 20:38:01,189 INFO L786 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 [2021-11-06 20:38:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9450 states. [2021-11-06 20:38:01,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9450 to 9414. [2021-11-06 20:38:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9414 states, 9322 states have (on average 1.2396481441750697) internal successors, (11556), 9375 states have internal predecessors, (11556), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-06 20:38:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9414 states to 9414 states and 11616 transitions. [2021-11-06 20:38:01,502 INFO L78 Accepts]: Start accepts. Automaton has 9414 states and 11616 transitions. Word has length 165 [2021-11-06 20:38:01,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:01,504 INFO L470 AbstractCegarLoop]: Abstraction has 9414 states and 11616 transitions. [2021-11-06 20:38:01,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-06 20:38:01,505 INFO L276 IsEmpty]: Start isEmpty. Operand 9414 states and 11616 transitions. [2021-11-06 20:38:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-06 20:38:01,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:01,514 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:01,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:38:01,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:01,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:01,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1198814604, now seen corresponding path program 1 times [2021-11-06 20:38:01,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:01,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350849356] [2021-11-06 20:38:01,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:01,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:01,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:38:01,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:01,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350849356] [2021-11-06 20:38:01,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350849356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:01,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:01,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:01,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420216086] [2021-11-06 20:38:01,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:38:01,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:38:01,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:38:01,942 INFO L87 Difference]: Start difference. First operand 9414 states and 11616 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2021-11-06 20:38:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:04,628 INFO L93 Difference]: Finished difference Result 27090 states and 33566 transitions. [2021-11-06 20:38:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:04,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 173 [2021-11-06 20:38:04,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:04,708 INFO L225 Difference]: With dead ends: 27090 [2021-11-06 20:38:04,708 INFO L226 Difference]: Without dead ends: 18072 [2021-11-06 20:38:04,742 INFO L786 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 [2021-11-06 20:38:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18072 states. [2021-11-06 20:38:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18072 to 17750. [2021-11-06 20:38:05,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17750 states, 17620 states have (on average 1.2461975028376844) internal successors, (21958), 17673 states have internal predecessors, (21958), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (70), 60 states have call predecessors, (70), 60 states have call successors, (70) [2021-11-06 20:38:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17750 states to 17750 states and 22088 transitions. [2021-11-06 20:38:05,300 INFO L78 Accepts]: Start accepts. Automaton has 17750 states and 22088 transitions. Word has length 173 [2021-11-06 20:38:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:05,301 INFO L470 AbstractCegarLoop]: Abstraction has 17750 states and 22088 transitions. [2021-11-06 20:38:05,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2021-11-06 20:38:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 17750 states and 22088 transitions. [2021-11-06 20:38:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-06 20:38:05,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:05,305 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:05,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:38:05,306 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:05,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:05,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2033153188, now seen corresponding path program 1 times [2021-11-06 20:38:05,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:05,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655496703] [2021-11-06 20:38:05,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:05,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:38:05,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:05,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655496703] [2021-11-06 20:38:05,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655496703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:05,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:05,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:05,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523963630] [2021-11-06 20:38:05,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:38:05,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:05,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:38:05,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:38:05,646 INFO L87 Difference]: Start difference. First operand 17750 states and 22088 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-06 20:38:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:08,506 INFO L93 Difference]: Finished difference Result 41000 states and 51267 transitions. [2021-11-06 20:38:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:08,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 [2021-11-06 20:38:08,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:08,603 INFO L225 Difference]: With dead ends: 41000 [2021-11-06 20:38:08,603 INFO L226 Difference]: Without dead ends: 23646 [2021-11-06 20:38:08,649 INFO L786 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 [2021-11-06 20:38:08,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23646 states. [2021-11-06 20:38:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23646 to 23548. [2021-11-06 20:38:09,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23548 states, 23384 states have (on average 1.2526513855627779) internal successors, (29292), 23437 states have internal predecessors, (29292), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (99), 86 states have call predecessors, (99), 86 states have call successors, (99) [2021-11-06 20:38:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23548 states to 23548 states and 29477 transitions. [2021-11-06 20:38:09,192 INFO L78 Accepts]: Start accepts. Automaton has 23548 states and 29477 transitions. Word has length 175 [2021-11-06 20:38:09,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:09,193 INFO L470 AbstractCegarLoop]: Abstraction has 23548 states and 29477 transitions. [2021-11-06 20:38:09,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-06 20:38:09,194 INFO L276 IsEmpty]: Start isEmpty. Operand 23548 states and 29477 transitions. [2021-11-06 20:38:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-06 20:38:09,197 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:09,197 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:09,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:38:09,198 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1868980924, now seen corresponding path program 1 times [2021-11-06 20:38:09,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:09,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331668807] [2021-11-06 20:38:09,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:09,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:38:09,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:09,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331668807] [2021-11-06 20:38:09,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331668807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:09,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:09,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:09,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412594609] [2021-11-06 20:38:09,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:38:09,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:09,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:38:09,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:38:09,582 INFO L87 Difference]: Start difference. First operand 23548 states and 29477 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-11-06 20:38:12,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:12,780 INFO L93 Difference]: Finished difference Result 68517 states and 86076 transitions. [2021-11-06 20:38:12,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:12,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 178 [2021-11-06 20:38:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:12,948 INFO L225 Difference]: With dead ends: 68517 [2021-11-06 20:38:12,948 INFO L226 Difference]: Without dead ends: 45365 [2021-11-06 20:38:13,024 INFO L786 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 [2021-11-06 20:38:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45365 states. [2021-11-06 20:38:13,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45365 to 44865. [2021-11-06 20:38:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44865 states, 44591 states have (on average 1.255387858536476) internal successors, (55979), 44644 states have internal predecessors, (55979), 172 states have call successors, (172), 48 states have call predecessors, (172), 48 states have return successors, (318), 172 states have call predecessors, (318), 172 states have call successors, (318) [2021-11-06 20:38:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44865 states to 44865 states and 56469 transitions. [2021-11-06 20:38:14,240 INFO L78 Accepts]: Start accepts. Automaton has 44865 states and 56469 transitions. Word has length 178 [2021-11-06 20:38:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:14,241 INFO L470 AbstractCegarLoop]: Abstraction has 44865 states and 56469 transitions. [2021-11-06 20:38:14,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-11-06 20:38:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 44865 states and 56469 transitions. [2021-11-06 20:38:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 20:38:14,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:14,247 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:14,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:38:14,248 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1566196920, now seen corresponding path program 1 times [2021-11-06 20:38:14,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:14,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679156072] [2021-11-06 20:38:14,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:14,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:38:14,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:14,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679156072] [2021-11-06 20:38:14,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679156072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:14,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:14,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:14,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169101481] [2021-11-06 20:38:14,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:38:14,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:14,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:38:14,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:38:14,594 INFO L87 Difference]: Start difference. First operand 44865 states and 56469 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 20:38:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:18,088 INFO L93 Difference]: Finished difference Result 105695 states and 133088 transitions. [2021-11-06 20:38:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:18,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2021-11-06 20:38:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:18,333 INFO L225 Difference]: With dead ends: 105695 [2021-11-06 20:38:18,333 INFO L226 Difference]: Without dead ends: 74975 [2021-11-06 20:38:18,440 INFO L786 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 [2021-11-06 20:38:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74975 states. [2021-11-06 20:38:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74975 to 74862. [2021-11-06 20:38:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74862 states, 74440 states have (on average 1.2555615260612574) internal successors, (93464), 74493 states have internal predecessors, (93464), 288 states have call successors, (288), 80 states have call predecessors, (288), 80 states have return successors, (532), 288 states have call predecessors, (532), 288 states have call successors, (532) [2021-11-06 20:38:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74862 states to 74862 states and 94284 transitions. [2021-11-06 20:38:20,271 INFO L78 Accepts]: Start accepts. Automaton has 74862 states and 94284 transitions. Word has length 198 [2021-11-06 20:38:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:20,276 INFO L470 AbstractCegarLoop]: Abstraction has 74862 states and 94284 transitions. [2021-11-06 20:38:20,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 20:38:20,277 INFO L276 IsEmpty]: Start isEmpty. Operand 74862 states and 94284 transitions. [2021-11-06 20:38:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 20:38:20,518 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:20,518 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:20,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 20:38:20,519 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:20,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:20,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1448906698, now seen corresponding path program 1 times [2021-11-06 20:38:20,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:20,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423116249] [2021-11-06 20:38:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:20,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:38:21,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:21,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423116249] [2021-11-06 20:38:21,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423116249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:21,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:21,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:21,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741832826] [2021-11-06 20:38:21,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:38:21,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:21,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:38:21,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:38:21,020 INFO L87 Difference]: Start difference. First operand 74862 states and 94284 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 20:38:25,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:25,118 INFO L93 Difference]: Finished difference Result 165681 states and 208702 transitions. [2021-11-06 20:38:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:38:25,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2021-11-06 20:38:25,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:25,559 INFO L225 Difference]: With dead ends: 165681 [2021-11-06 20:38:25,559 INFO L226 Difference]: Without dead ends: 104964 [2021-11-06 20:38:25,724 INFO L786 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 [2021-11-06 20:38:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104964 states. [2021-11-06 20:38:28,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104964 to 104928. [2021-11-06 20:38:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104928 states, 104358 states have (on average 1.2554667586576975) internal successors, (131018), 104411 states have internal predecessors, (131018), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-06 20:38:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104928 states to 104928 states and 132168 transitions. [2021-11-06 20:38:28,506 INFO L78 Accepts]: Start accepts. Automaton has 104928 states and 132168 transitions. Word has length 198 [2021-11-06 20:38:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:28,509 INFO L470 AbstractCegarLoop]: Abstraction has 104928 states and 132168 transitions. [2021-11-06 20:38:28,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 20:38:28,512 INFO L276 IsEmpty]: Start isEmpty. Operand 104928 states and 132168 transitions. [2021-11-06 20:38:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-06 20:38:28,529 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:28,529 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:28,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 20:38:28,530 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:28,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1460364511, now seen corresponding path program 1 times [2021-11-06 20:38:28,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:28,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961102135] [2021-11-06 20:38:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:28,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 20:38:29,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:29,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961102135] [2021-11-06 20:38:29,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961102135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:29,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:29,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:29,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405692294] [2021-11-06 20:38:29,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 20:38:29,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:29,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 20:38:29,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 20:38:29,508 INFO L87 Difference]: Start difference. First operand 104928 states and 132168 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-06 20:38:31,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:31,306 INFO L93 Difference]: Finished difference Result 104928 states and 132168 transitions. [2021-11-06 20:38:31,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 20:38:31,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 203 [2021-11-06 20:38:31,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:31,800 INFO L225 Difference]: With dead ends: 104928 [2021-11-06 20:38:31,800 INFO L226 Difference]: Without dead ends: 104922 [2021-11-06 20:38:31,837 INFO L786 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 [2021-11-06 20:38:31,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104922 states. [2021-11-06 20:38:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104922 to 104922. [2021-11-06 20:38:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104922 states, 104355 states have (on average 1.2554453547985243) internal successors, (131012), 104405 states have internal predecessors, (131012), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-06 20:38:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104922 states to 104922 states and 132162 transitions. [2021-11-06 20:38:34,456 INFO L78 Accepts]: Start accepts. Automaton has 104922 states and 132162 transitions. Word has length 203 [2021-11-06 20:38:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:34,458 INFO L470 AbstractCegarLoop]: Abstraction has 104922 states and 132162 transitions. [2021-11-06 20:38:34,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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) [2021-11-06 20:38:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 104922 states and 132162 transitions. [2021-11-06 20:38:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-06 20:38:34,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:34,496 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:34,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 20:38:34,496 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1044209252, now seen corresponding path program 1 times [2021-11-06 20:38:34,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:34,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233395205] [2021-11-06 20:38:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:34,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 20:38:35,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:35,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233395205] [2021-11-06 20:38:35,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233395205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:35,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:35,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:35,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441175993] [2021-11-06 20:38:35,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 20:38:35,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 20:38:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 20:38:35,336 INFO L87 Difference]: Start difference. First operand 104922 states and 132162 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-11-06 20:38:37,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:37,350 INFO L93 Difference]: Finished difference Result 104922 states and 132162 transitions. [2021-11-06 20:38:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 20:38:37,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 205 [2021-11-06 20:38:37,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:37,742 INFO L225 Difference]: With dead ends: 104922 [2021-11-06 20:38:37,742 INFO L226 Difference]: Without dead ends: 104916 [2021-11-06 20:38:37,805 INFO L786 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 [2021-11-06 20:38:37,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104916 states. [2021-11-06 20:38:40,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104916 to 104916. [2021-11-06 20:38:40,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104916 states, 104352 states have (on average 1.2554239497086783) internal successors, (131006), 104399 states have internal predecessors, (131006), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746) [2021-11-06 20:38:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104916 states to 104916 states and 132156 transitions. [2021-11-06 20:38:41,041 INFO L78 Accepts]: Start accepts. Automaton has 104916 states and 132156 transitions. Word has length 205 [2021-11-06 20:38:41,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:38:41,042 INFO L470 AbstractCegarLoop]: Abstraction has 104916 states and 132156 transitions. [2021-11-06 20:38:41,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-11-06 20:38:41,043 INFO L276 IsEmpty]: Start isEmpty. Operand 104916 states and 132156 transitions. [2021-11-06 20:38:41,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-06 20:38:41,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:38:41,055 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:38:41,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 20:38:41,056 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-06 20:38:41,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:38:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1537057241, now seen corresponding path program 1 times [2021-11-06 20:38:41,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:38:41,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977543222] [2021-11-06 20:38:41,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:38:41,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:38:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:38:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 20:38:41,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:38:41,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977543222] [2021-11-06 20:38:41,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977543222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:38:41,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:38:41,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:38:41,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568101544] [2021-11-06 20:38:41,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 20:38:41,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:38:41,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 20:38:41,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 20:38:41,737 INFO L87 Difference]: Start difference. First operand 104916 states and 132156 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-11-06 20:38:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:38:43,771 INFO L93 Difference]: Finished difference Result 104916 states and 132156 transitions. [2021-11-06 20:38:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 20:38:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 3 states have internal predecessors, (194), 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 207 [2021-11-06 20:38:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:38:44,114 INFO L225 Difference]: With dead ends: 104916 [2021-11-06 20:38:44,115 INFO L226 Difference]: Without dead ends: 104910 [2021-11-06 20:38:44,174 INFO L786 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 [2021-11-06 20:38:44,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104910 states. [2021-11-06 20:38:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104910 to 104910. [2021-11-06 20:38:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104910 states, 104349 states have (on average 1.2554025433880536) internal successors, (131000), 104393 states have internal predecessors, (131000), 404 states have call successors, (404), 112 states have call predecessors, (404), 112 states have return successors, (746), 404 states have call predecessors, (746), 404 states have call successors, (746)