./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-net-usb-smsc75xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-net-usb-smsc75xx.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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:53:20,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:53:20,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:53:20,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:53:20,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:53:20,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:53:20,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:53:20,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:53:20,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:53:20,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:53:20,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:53:20,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:53:20,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:53:20,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:53:20,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:53:20,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:53:20,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:53:20,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:53:20,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:53:20,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:53:20,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:53:20,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:53:20,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:53:20,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:53:20,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:53:20,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:53:20,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:53:20,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:53:20,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:53:20,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:53:20,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:53:20,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:53:20,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:53:20,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:53:20,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:53:20,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:53:20,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:53:20,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:53:20,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:53:20,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:53:20,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:53:20,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:53:20,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:53:20,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:53:20,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:53:20,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:53:20,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:53:20,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:53:20,915 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:53:20,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:53:20,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:53:20,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:53:20,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:53:20,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:53:20,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:53:20,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:53:20,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:53:20,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:53:20,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:53:20,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:53:20,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:53:20,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:53:20,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:53:20,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:53:20,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:53:20,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:53:20,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2021-11-05 20:53:21,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:53:21,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:53:21,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:53:21,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:53:21,229 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:53:21,230 INFO L432 ainManager$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-net-usb-smsc75xx.cil.i [2021-11-05 20:53:21,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1245979c6/f352403cfdcf43eab70a7b49f2c67fd1/FLAGea961b538 [2021-11-05 20:53:22,136 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:53:22,136 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-net-usb-smsc75xx.cil.i [2021-11-05 20:53:22,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1245979c6/f352403cfdcf43eab70a7b49f2c67fd1/FLAGea961b538 [2021-11-05 20:53:22,292 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1245979c6/f352403cfdcf43eab70a7b49f2c67fd1 [2021-11-05 20:53:22,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:53:22,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:53:22,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:22,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:53:22,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:53:22,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:22" (1/1) ... [2021-11-05 20:53:22,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c50ab79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:22, skipping insertion in model container [2021-11-05 20:53:22,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:53:22" (1/1) ... [2021-11-05 20:53:22,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:53:22,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:53:24,401 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-05 20:53:24,403 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-05 20:53:24,404 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-05 20:53:24,404 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-05 20:53:24,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:24,467 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:53:24,755 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-05 20:53:24,756 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-05 20:53:24,757 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-05 20:53:24,757 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-05 20:53:24,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:53:25,030 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:53:25,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25 WrapperNode [2021-11-05 20:53:25,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:53:25,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:25,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:53:25,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:53:25,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:25,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:26,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:53:26,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:53:26,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:53:26,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:53:26,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:26,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:26,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:26,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:27,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:27,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:28,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:28,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:53:28,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:53:28,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:53:28,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:53:28,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (1/1) ... [2021-11-05 20:53:28,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:53:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:53:28,384 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) [2021-11-05 20:53:28,411 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 [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:53:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:53:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:53:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-05 20:53:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:54:19,387 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:54:19,387 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:54:19,388 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:54:19,388 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:54:19,389 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:54:19,391 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:54:19,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:54:19,439 INFO L299 CfgBuilder]: Removed 7083 assume(true) statements. [2021-11-05 20:54:19,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:19 BoogieIcfgContainer [2021-11-05 20:54:19,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:54:19,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:54:19,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:54:19,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:54:19,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:53:22" (1/3) ... [2021-11-05 20:54:19,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f49bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:19, skipping insertion in model container [2021-11-05 20:54:19,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:53:25" (2/3) ... [2021-11-05 20:54:19,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f49bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:54:19, skipping insertion in model container [2021-11-05 20:54:19,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:54:19" (3/3) ... [2021-11-05 20:54:19,457 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-05 20:54:19,461 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:54:19,461 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-05 20:54:19,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:54:19,547 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 [2021-11-05 20:54:19,548 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-05 20:54:19,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 10391 states, 10335 states have (on average 1.4625060474117078) internal successors, (15115), 10390 states have internal predecessors, (15115), 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) [2021-11-05 20:54:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-05 20:54:19,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:19,701 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] [2021-11-05 20:54:19,702 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:19,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1069829801, now seen corresponding path program 1 times [2021-11-05 20:54:19,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:19,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407243701] [2021-11-05 20:54:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:19,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:20,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:20,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407243701] [2021-11-05 20:54:20,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407243701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:20,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:20,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:20,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99381717] [2021-11-05 20:54:20,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:20,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:20,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:20,676 INFO L87 Difference]: Start difference. First operand has 10391 states, 10335 states have (on average 1.4625060474117078) internal successors, (15115), 10390 states have internal predecessors, (15115), 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 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-05 20:54:22,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:23,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:23,532 INFO L93 Difference]: Finished difference Result 30604 states and 44620 transitions. [2021-11-05 20:54:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:23,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2021-11-05 20:54:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:23,642 INFO L225 Difference]: With dead ends: 30604 [2021-11-05 20:54:23,642 INFO L226 Difference]: Without dead ends: 20213 [2021-11-05 20:54:23,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:23,681 INFO L933 BasicCegarLoop]: 14537 mSDtfsCounter, 14105 mSDsluCounter, 14485 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2153.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14105 SdHoareTripleChecker+Valid, 29022 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.29ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2301.67ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:23,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14105 Valid, 29022 Invalid, 44 Unknown, 0 Unchecked, 50.29ms Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2301.67ms Time] [2021-11-05 20:54:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20213 states. [2021-11-05 20:54:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20213 to 20173. [2021-11-05 20:54:24,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20173 states, 20117 states have (on average 1.404483769945817) internal successors, (28254), 20172 states have internal predecessors, (28254), 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) [2021-11-05 20:54:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20173 states to 20173 states and 28254 transitions. [2021-11-05 20:54:24,318 INFO L78 Accepts]: Start accepts. Automaton has 20173 states and 28254 transitions. Word has length 69 [2021-11-05 20:54:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:24,320 INFO L470 AbstractCegarLoop]: Abstraction has 20173 states and 28254 transitions. [2021-11-05 20:54:24,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-05 20:54:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 20173 states and 28254 transitions. [2021-11-05 20:54:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 20:54:24,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:24,327 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] [2021-11-05 20:54:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:54:24,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -214538271, now seen corresponding path program 1 times [2021-11-05 20:54:24,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:24,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883315379] [2021-11-05 20:54:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:24,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:24,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:24,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883315379] [2021-11-05 20:54:24,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883315379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:24,725 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:24,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:24,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738710516] [2021-11-05 20:54:24,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:24,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:24,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:24,729 INFO L87 Difference]: Start difference. First operand 20173 states and 28254 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:54:26,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:27,627 INFO L93 Difference]: Finished difference Result 49228 states and 68995 transitions. [2021-11-05 20:54:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-05 20:54:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:27,714 INFO L225 Difference]: With dead ends: 49228 [2021-11-05 20:54:27,714 INFO L226 Difference]: Without dead ends: 29195 [2021-11-05 20:54:27,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:27,753 INFO L933 BasicCegarLoop]: 14314 mSDtfsCounter, 13386 mSDsluCounter, 14238 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2216.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13386 SdHoareTripleChecker+Valid, 28552 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.33ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2374.24ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:27,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13386 Valid, 28552 Invalid, 93 Unknown, 0 Unchecked, 34.33ms Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 2374.24ms Time] [2021-11-05 20:54:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29195 states. [2021-11-05 20:54:28,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29195 to 28999. [2021-11-05 20:54:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28999 states, 28943 states have (on average 1.4065922675603773) internal successors, (40711), 28998 states have internal predecessors, (40711), 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) [2021-11-05 20:54:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28999 states to 28999 states and 40711 transitions. [2021-11-05 20:54:28,434 INFO L78 Accepts]: Start accepts. Automaton has 28999 states and 40711 transitions. Word has length 79 [2021-11-05 20:54:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:28,435 INFO L470 AbstractCegarLoop]: Abstraction has 28999 states and 40711 transitions. [2021-11-05 20:54:28,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:54:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 28999 states and 40711 transitions. [2021-11-05 20:54:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 20:54:28,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:28,439 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] [2021-11-05 20:54:28,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:54:28,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:28,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:28,440 INFO L85 PathProgramCache]: Analyzing trace with hash -342662859, now seen corresponding path program 1 times [2021-11-05 20:54:28,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:28,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152594033] [2021-11-05 20:54:28,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:28,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:28,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:28,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:28,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152594033] [2021-11-05 20:54:28,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152594033] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:28,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:28,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:28,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578109795] [2021-11-05 20:54:28,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:28,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:28,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:28,786 INFO L87 Difference]: Start difference. First operand 28999 states and 40711 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:30,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:31,593 INFO L93 Difference]: Finished difference Result 67789 states and 95226 transitions. [2021-11-05 20:54:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-05 20:54:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:31,716 INFO L225 Difference]: With dead ends: 67789 [2021-11-05 20:54:31,717 INFO L226 Difference]: Without dead ends: 48272 [2021-11-05 20:54:31,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.28ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:31,767 INFO L933 BasicCegarLoop]: 28263 mSDtfsCounter, 13950 mSDsluCounter, 14289 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2144.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13950 SdHoareTripleChecker+Valid, 42552 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.25ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2213.27ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:31,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13950 Valid, 42552 Invalid, 40 Unknown, 0 Unchecked, 38.25ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2213.27ms Time] [2021-11-05 20:54:31,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48272 states. [2021-11-05 20:54:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48272 to 48232. [2021-11-05 20:54:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48232 states, 48176 states have (on average 1.4075265692460976) internal successors, (67809), 48231 states have internal predecessors, (67809), 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) [2021-11-05 20:54:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48232 states to 48232 states and 67809 transitions. [2021-11-05 20:54:33,672 INFO L78 Accepts]: Start accepts. Automaton has 48232 states and 67809 transitions. Word has length 101 [2021-11-05 20:54:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:33,673 INFO L470 AbstractCegarLoop]: Abstraction has 48232 states and 67809 transitions. [2021-11-05 20:54:33,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 48232 states and 67809 transitions. [2021-11-05 20:54:33,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-05 20:54:33,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:33,678 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] [2021-11-05 20:54:33,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:54:33,679 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:33,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1622526537, now seen corresponding path program 1 times [2021-11-05 20:54:33,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:33,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610618529] [2021-11-05 20:54:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:33,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:54:34,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:34,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610618529] [2021-11-05 20:54:34,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610618529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:34,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:34,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:34,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668340019] [2021-11-05 20:54:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:34,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:54:34,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:54:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:34,032 INFO L87 Difference]: Start difference. First operand 48232 states and 67809 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:36,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:54:36,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:36,815 INFO L93 Difference]: Finished difference Result 106259 states and 149430 transitions. [2021-11-05 20:54:36,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:54:36,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-05 20:54:36,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:36,985 INFO L225 Difference]: With dead ends: 106259 [2021-11-05 20:54:36,985 INFO L226 Difference]: Without dead ends: 67509 [2021-11-05 20:54:37,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:54:37,063 INFO L933 BasicCegarLoop]: 15076 mSDtfsCounter, 14023 mSDsluCounter, 14220 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2123.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14023 SdHoareTripleChecker+Valid, 29296 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.59ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2204.98ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:37,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14023 Valid, 29296 Invalid, 44 Unknown, 0 Unchecked, 21.59ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2204.98ms Time] [2021-11-05 20:54:37,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67509 states. [2021-11-05 20:54:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67509 to 67469. [2021-11-05 20:54:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67469 states, 67413 states have (on average 1.4079628558289945) internal successors, (94915), 67468 states have internal predecessors, (94915), 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) [2021-11-05 20:54:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67469 states to 67469 states and 94915 transitions. [2021-11-05 20:54:38,867 INFO L78 Accepts]: Start accepts. Automaton has 67469 states and 94915 transitions. Word has length 101 [2021-11-05 20:54:38,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:38,868 INFO L470 AbstractCegarLoop]: Abstraction has 67469 states and 94915 transitions. [2021-11-05 20:54:38,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:38,868 INFO L276 IsEmpty]: Start isEmpty. Operand 67469 states and 94915 transitions. [2021-11-05 20:54:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-05 20:54:38,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:38,873 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:38,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:54:38,873 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:38,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:38,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1225949564, now seen corresponding path program 1 times [2021-11-05 20:54:38,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:38,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487043329] [2021-11-05 20:54:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:38,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:39,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:39,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487043329] [2021-11-05 20:54:39,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487043329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:39,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:39,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:39,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746481968] [2021-11-05 20:54:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:39,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:39,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:39,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:39,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:39,464 INFO L87 Difference]: Start difference. First operand 67469 states and 94915 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-05 20:54:40,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:40,440 INFO L93 Difference]: Finished difference Result 67469 states and 94915 transitions. [2021-11-05 20:54:40,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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 104 [2021-11-05 20:54:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:40,568 INFO L225 Difference]: With dead ends: 67469 [2021-11-05 20:54:40,569 INFO L226 Difference]: Without dead ends: 67463 [2021-11-05 20:54:40,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.54ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:40,595 INFO L933 BasicCegarLoop]: 14309 mSDtfsCounter, 14228 mSDsluCounter, 14213 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 145.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14228 SdHoareTripleChecker+Valid, 28522 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.01ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.75ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:40,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14228 Valid, 28522 Invalid, 106 Unknown, 0 Unchecked, 32.01ms Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 174.75ms Time] [2021-11-05 20:54:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67463 states. [2021-11-05 20:54:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67463 to 67463. [2021-11-05 20:54:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67463 states, 67410 states have (on average 1.407936507936508) internal successors, (94909), 67462 states have internal predecessors, (94909), 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) [2021-11-05 20:54:41,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67463 states to 67463 states and 94909 transitions. [2021-11-05 20:54:41,988 INFO L78 Accepts]: Start accepts. Automaton has 67463 states and 94909 transitions. Word has length 104 [2021-11-05 20:54:41,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:41,988 INFO L470 AbstractCegarLoop]: Abstraction has 67463 states and 94909 transitions. [2021-11-05 20:54:41,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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) [2021-11-05 20:54:41,988 INFO L276 IsEmpty]: Start isEmpty. Operand 67463 states and 94909 transitions. [2021-11-05 20:54:41,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-05 20:54:41,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:41,992 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:41,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:54:41,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:41,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1316337177, now seen corresponding path program 1 times [2021-11-05 20:54:41,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:41,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577127581] [2021-11-05 20:54:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:41,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:42,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:42,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577127581] [2021-11-05 20:54:42,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577127581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:42,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:42,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:42,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583191355] [2021-11-05 20:54:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:42,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:42,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:42,331 INFO L87 Difference]: Start difference. First operand 67463 states and 94909 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:54:43,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:43,338 INFO L93 Difference]: Finished difference Result 67463 states and 94909 transitions. [2021-11-05 20:54:43,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:43,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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 106 [2021-11-05 20:54:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:43,446 INFO L225 Difference]: With dead ends: 67463 [2021-11-05 20:54:43,447 INFO L226 Difference]: Without dead ends: 67457 [2021-11-05 20:54:43,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.25ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:43,472 INFO L933 BasicCegarLoop]: 14303 mSDtfsCounter, 14217 mSDsluCounter, 14210 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14217 SdHoareTripleChecker+Valid, 28513 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.63ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.13ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:43,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14217 Valid, 28513 Invalid, 106 Unknown, 0 Unchecked, 29.63ms Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 154.13ms Time] [2021-11-05 20:54:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67457 states. [2021-11-05 20:54:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67457 to 67457. [2021-11-05 20:54:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67457 states, 67407 states have (on average 1.4079101576987554) internal successors, (94903), 67456 states have internal predecessors, (94903), 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) [2021-11-05 20:54:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67457 states to 67457 states and 94903 transitions. [2021-11-05 20:54:44,651 INFO L78 Accepts]: Start accepts. Automaton has 67457 states and 94903 transitions. Word has length 106 [2021-11-05 20:54:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:44,651 INFO L470 AbstractCegarLoop]: Abstraction has 67457 states and 94903 transitions. [2021-11-05 20:54:44,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:54:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 67457 states and 94903 transitions. [2021-11-05 20:54:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-05 20:54:44,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:44,655 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:44,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:54:44,656 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2015480266, now seen corresponding path program 1 times [2021-11-05 20:54:44,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:44,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944255364] [2021-11-05 20:54:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:44,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:45,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:45,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944255364] [2021-11-05 20:54:45,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944255364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:45,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:45,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:45,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322355642] [2021-11-05 20:54:45,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:45,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:45,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:45,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:45,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:45,204 INFO L87 Difference]: Start difference. First operand 67457 states and 94903 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-05 20:54:46,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:46,304 INFO L93 Difference]: Finished difference Result 67457 states and 94903 transitions. [2021-11-05 20:54:46,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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 108 [2021-11-05 20:54:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:46,396 INFO L225 Difference]: With dead ends: 67457 [2021-11-05 20:54:46,396 INFO L226 Difference]: Without dead ends: 67451 [2021-11-05 20:54:46,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:46,414 INFO L933 BasicCegarLoop]: 14297 mSDtfsCounter, 14209 mSDsluCounter, 14207 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14209 SdHoareTripleChecker+Valid, 28504 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.84ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.25ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:46,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14209 Valid, 28504 Invalid, 103 Unknown, 0 Unchecked, 26.84ms Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 145.25ms Time] [2021-11-05 20:54:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67451 states. [2021-11-05 20:54:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67451 to 67451. [2021-11-05 20:54:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67451 states, 67404 states have (on average 1.4078838051154234) internal successors, (94897), 67450 states have internal predecessors, (94897), 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) [2021-11-05 20:54:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67451 states to 67451 states and 94897 transitions. [2021-11-05 20:54:47,590 INFO L78 Accepts]: Start accepts. Automaton has 67451 states and 94897 transitions. Word has length 108 [2021-11-05 20:54:47,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:47,590 INFO L470 AbstractCegarLoop]: Abstraction has 67451 states and 94897 transitions. [2021-11-05 20:54:47,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 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) [2021-11-05 20:54:47,591 INFO L276 IsEmpty]: Start isEmpty. Operand 67451 states and 94897 transitions. [2021-11-05 20:54:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-05 20:54:47,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:47,596 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:47,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:54:47,597 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash -153559507, now seen corresponding path program 1 times [2021-11-05 20:54:47,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:47,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024376136] [2021-11-05 20:54:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:47,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:47,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:47,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024376136] [2021-11-05 20:54:47,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024376136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:47,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:47,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:47,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041726027] [2021-11-05 20:54:47,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:47,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:47,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:47,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:47,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:47,921 INFO L87 Difference]: Start difference. First operand 67451 states and 94897 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-05 20:54:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:49,147 INFO L93 Difference]: Finished difference Result 67451 states and 94897 transitions. [2021-11-05 20:54:49,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:49,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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 110 [2021-11-05 20:54:49,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:49,242 INFO L225 Difference]: With dead ends: 67451 [2021-11-05 20:54:49,242 INFO L226 Difference]: Without dead ends: 67445 [2021-11-05 20:54:49,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:49,259 INFO L933 BasicCegarLoop]: 14291 mSDtfsCounter, 14201 mSDsluCounter, 14204 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14201 SdHoareTripleChecker+Valid, 28495 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.97ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.94ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:49,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14201 Valid, 28495 Invalid, 100 Unknown, 0 Unchecked, 24.97ms Time], IncrementalHoareTripleChecker [37 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 124.94ms Time] [2021-11-05 20:54:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67445 states. [2021-11-05 20:54:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67445 to 67445. [2021-11-05 20:54:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67445 states, 67401 states have (on average 1.4078574501861991) internal successors, (94891), 67444 states have internal predecessors, (94891), 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) [2021-11-05 20:54:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67445 states to 67445 states and 94891 transitions. [2021-11-05 20:54:50,510 INFO L78 Accepts]: Start accepts. Automaton has 67445 states and 94891 transitions. Word has length 110 [2021-11-05 20:54:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:50,511 INFO L470 AbstractCegarLoop]: Abstraction has 67445 states and 94891 transitions. [2021-11-05 20:54:50,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-11-05 20:54:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 67445 states and 94891 transitions. [2021-11-05 20:54:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-05 20:54:50,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:50,517 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:50,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:54:50,517 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:50,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1541642480, now seen corresponding path program 1 times [2021-11-05 20:54:50,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:50,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597172458] [2021-11-05 20:54:50,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:50,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:50,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:50,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:50,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597172458] [2021-11-05 20:54:50,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597172458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:50,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:50,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:50,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896699079] [2021-11-05 20:54:50,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:50,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:50,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:50,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:50,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:50,852 INFO L87 Difference]: Start difference. First operand 67445 states and 94891 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:54:52,061 INFO L93 Difference]: Finished difference Result 67445 states and 94891 transitions. [2021-11-05 20:54:52,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:54:52,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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 112 [2021-11-05 20:54:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:54:52,153 INFO L225 Difference]: With dead ends: 67445 [2021-11-05 20:54:52,153 INFO L226 Difference]: Without dead ends: 67439 [2021-11-05 20:54:52,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:54:52,170 INFO L933 BasicCegarLoop]: 14285 mSDtfsCounter, 14193 mSDsluCounter, 14201 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14193 SdHoareTripleChecker+Valid, 28486 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.87ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.13ms IncrementalHoareTripleChecker+Time [2021-11-05 20:54:52,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14193 Valid, 28486 Invalid, 97 Unknown, 0 Unchecked, 22.87ms Time], IncrementalHoareTripleChecker [37 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 102.13ms Time] [2021-11-05 20:54:52,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67439 states. [2021-11-05 20:54:53,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67439 to 67439. [2021-11-05 20:54:53,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67439 states, 67398 states have (on average 1.407831092910769) internal successors, (94885), 67438 states have internal predecessors, (94885), 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) [2021-11-05 20:54:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67439 states to 67439 states and 94885 transitions. [2021-11-05 20:54:53,448 INFO L78 Accepts]: Start accepts. Automaton has 67439 states and 94885 transitions. Word has length 112 [2021-11-05 20:54:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:54:53,448 INFO L470 AbstractCegarLoop]: Abstraction has 67439 states and 94885 transitions. [2021-11-05 20:54:53,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 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) [2021-11-05 20:54:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 67439 states and 94885 transitions. [2021-11-05 20:54:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-05 20:54:53,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:54:53,454 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:54:53,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:54:53,454 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-05 20:54:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:54:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash 245449843, now seen corresponding path program 1 times [2021-11-05 20:54:53,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:54:53,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458770490] [2021-11-05 20:54:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:54:53,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:54:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:54:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:54:53,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:54:53,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458770490] [2021-11-05 20:54:53,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458770490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:54:53,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:54:53,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:54:53,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240795503] [2021-11-05 20:54:53,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:54:53,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:54:53,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:54:53,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:54:53,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:54:53,793 INFO L87 Difference]: Start difference. First operand 67439 states and 94885 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 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)