./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY --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 db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:03:42,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:03:42,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:03:42,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:03:42,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:03:42,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:03:42,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:03:42,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:03:42,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:03:42,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:03:42,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:03:42,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:03:42,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:03:42,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:03:42,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:03:42,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:03:42,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:03:42,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:03:42,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:03:42,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:03:42,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:03:42,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:03:42,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:03:42,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:03:42,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:03:42,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:03:42,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:03:42,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:03:42,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:03:42,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:03:42,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:03:42,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:03:42,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:03:42,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:03:42,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:03:42,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:03:42,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:03:42,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:03:42,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:03:42,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:03:42,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:03:42,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:03:42,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:03:42,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:03:42,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:03:42,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:03:42,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:03:42,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:03:42,979 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:03:42,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:03:42,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:03:42,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:03:42,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:03:42,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:03:42,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:03:42,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:03:42,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:03:42,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:03:42,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:03:42,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:03:42,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:03:42,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:03:42,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:03:42,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:03:42,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:03:42,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:03:42,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:03:42,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:03:42,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:03:42,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:03:42,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:03:42,985 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-07 08:03:43,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:03:43,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:03:43,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:03:43,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:03:43,306 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:03:43,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-07 08:03:43,380 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/data/b3e7d053d/df02a1535ca54359ab5980dbed0b2983/FLAG08f171b43 [2021-11-07 08:03:44,570 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:03:44,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-07 08:03:44,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/data/b3e7d053d/df02a1535ca54359ab5980dbed0b2983/FLAG08f171b43 [2021-11-07 08:03:44,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/data/b3e7d053d/df02a1535ca54359ab5980dbed0b2983 [2021-11-07 08:03:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:03:44,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:03:44,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:03:44,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:03:44,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:03:44,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:03:44" (1/1) ... [2021-11-07 08:03:44,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ca8494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:44, skipping insertion in model container [2021-11-07 08:03:44,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:03:44" (1/1) ... [2021-11-07 08:03:44,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:03:45,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:03:47,571 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-07 08:03:47,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-07 08:03:47,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:03:47,663 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:03:48,237 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-07 08:03:48,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-07 08:03:48,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:03:48,463 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:03:48,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48 WrapperNode [2021-11-07 08:03:48,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:03:48,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:03:48,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:03:48,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:03:48,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:48,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:50,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:03:50,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:03:50,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:03:50,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:03:50,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:50,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:51,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:51,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:53,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:53,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:53,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:54,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:03:54,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:03:54,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:03:54,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:03:54,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (1/1) ... [2021-11-07 08:03:54,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:03:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:03:54,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:03:54,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b223a5-0416-4c1a-b574-754b7fe577e7/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:03:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-07 08:03:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 08:03:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-07 08:03:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-07 08:03:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:03:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 08:03:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 08:03:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:03:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:03:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:06:03,247 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 08:06:03,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2021-11-07 08:06:03,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 08:06:03,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 08:06:03,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 08:06:48,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:06:48,119 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2021-11-07 08:06:48,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:06:48 BoogieIcfgContainer [2021-11-07 08:06:48,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:06:48,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:06:48,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:06:48,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:06:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:03:44" (1/3) ... [2021-11-07 08:06:48,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe9cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:06:48, skipping insertion in model container [2021-11-07 08:06:48,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:03:48" (2/3) ... [2021-11-07 08:06:48,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fe9cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:06:48, skipping insertion in model container [2021-11-07 08:06:48,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:06:48" (3/3) ... [2021-11-07 08:06:48,142 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-07 08:06:48,148 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:06:48,149 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 08:06:48,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:06:48,260 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 [2021-11-07 08:06:48,264 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 08:06:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 9360 states, 9331 states have (on average 1.4032793912763906) internal successors, (13094), 9336 states have internal predecessors, (13094), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-07 08:06:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 08:06:48,463 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:48,464 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:06:48,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:06:48,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:48,471 INFO L85 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2021-11-07 08:06:48,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:48,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131407360] [2021-11-07 08:06:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:48,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:49,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:49,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131407360] [2021-11-07 08:06:49,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131407360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:49,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:49,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:06:49,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215163932] [2021-11-07 08:06:49,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:06:49,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:49,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:06:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:06:49,773 INFO L87 Difference]: Start difference. First operand has 9360 states, 9331 states have (on average 1.4032793912763906) internal successors, (13094), 9336 states have internal predecessors, (13094), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-07 08:06:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:53,368 INFO L93 Difference]: Finished difference Result 25905 states and 36441 transitions. [2021-11-07 08:06:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:06:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2021-11-07 08:06:53,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:06:53,619 INFO L225 Difference]: With dead ends: 25905 [2021-11-07 08:06:53,619 INFO L226 Difference]: Without dead ends: 16320 [2021-11-07 08:06:53,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:06:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16320 states. [2021-11-07 08:06:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16320 to 16300. [2021-11-07 08:06:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16300 states, 16248 states have (on average 1.3940177252584933) internal successors, (22650), 16253 states have internal predecessors, (22650), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-07 08:06:54,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 22726 transitions. [2021-11-07 08:06:55,000 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 22726 transitions. Word has length 81 [2021-11-07 08:06:55,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:06:55,004 INFO L470 AbstractCegarLoop]: Abstraction has 16300 states and 22726 transitions. [2021-11-07 08:06:55,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2021-11-07 08:06:55,006 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 22726 transitions. [2021-11-07 08:06:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 08:06:55,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:06:55,021 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:06:55,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:06:55,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:06:55,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:06:55,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2021-11-07 08:06:55,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:06:55,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698307837] [2021-11-07 08:06:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:06:55,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:06:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:06:55,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:06:55,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:06:55,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698307837] [2021-11-07 08:06:55,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698307837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:06:55,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:06:55,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:06:55,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359528654] [2021-11-07 08:06:55,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:06:55,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:06:55,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:06:55,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:06:55,529 INFO L87 Difference]: Start difference. First operand 16300 states and 22726 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:06:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:06:59,695 INFO L93 Difference]: Finished difference Result 48166 states and 67204 transitions. [2021-11-07 08:06:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:06:59,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 08:06:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:00,015 INFO L225 Difference]: With dead ends: 48166 [2021-11-07 08:07:00,015 INFO L226 Difference]: Without dead ends: 32006 [2021-11-07 08:07:00,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32006 states. [2021-11-07 08:07:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32006 to 31982. [2021-11-07 08:07:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31982 states, 31902 states have (on average 1.3946147576954422) internal successors, (44491), 31907 states have internal predecessors, (44491), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-07 08:07:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31982 states to 31982 states and 44607 transitions. [2021-11-07 08:07:01,803 INFO L78 Accepts]: Start accepts. Automaton has 31982 states and 44607 transitions. Word has length 86 [2021-11-07 08:07:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:01,807 INFO L470 AbstractCegarLoop]: Abstraction has 31982 states and 44607 transitions. [2021-11-07 08:07:01,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:01,808 INFO L276 IsEmpty]: Start isEmpty. Operand 31982 states and 44607 transitions. [2021-11-07 08:07:01,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 08:07:01,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:01,819 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:07:01,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:07:01,820 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:07:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2021-11-07 08:07:01,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:01,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75255225] [2021-11-07 08:07:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:01,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:02,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:02,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75255225] [2021-11-07 08:07:02,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75255225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:02,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:02,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:07:02,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064302674] [2021-11-07 08:07:02,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:07:02,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:02,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:07:02,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:02,308 INFO L87 Difference]: Start difference. First operand 31982 states and 44607 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:07,096 INFO L93 Difference]: Finished difference Result 95046 states and 132731 transitions. [2021-11-07 08:07:07,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:07:07,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 08:07:07,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:07,688 INFO L225 Difference]: With dead ends: 95046 [2021-11-07 08:07:07,689 INFO L226 Difference]: Without dead ends: 63204 [2021-11-07 08:07:07,876 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63204 states. [2021-11-07 08:07:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63204 to 63168. [2021-11-07 08:07:10,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63168 states, 63018 states have (on average 1.3962201275825954) internal successors, (87987), 63023 states have internal predecessors, (87987), 112 states have call successors, (112), 32 states have call predecessors, (112), 32 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 08:07:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63168 states to 63168 states and 88211 transitions. [2021-11-07 08:07:10,906 INFO L78 Accepts]: Start accepts. Automaton has 63168 states and 88211 transitions. Word has length 87 [2021-11-07 08:07:10,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:10,908 INFO L470 AbstractCegarLoop]: Abstraction has 63168 states and 88211 transitions. [2021-11-07 08:07:10,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:07:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 63168 states and 88211 transitions. [2021-11-07 08:07:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 08:07:10,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:10,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:07:10,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:07:10,920 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:07:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2021-11-07 08:07:10,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:10,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51418475] [2021-11-07 08:07:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:10,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:11,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:11,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51418475] [2021-11-07 08:07:11,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51418475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:11,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:11,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:07:11,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678662576] [2021-11-07 08:07:11,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:07:11,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:11,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:07:11,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:11,307 INFO L87 Difference]: Start difference. First operand 63168 states and 88211 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-07 08:07:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:07:17,267 INFO L93 Difference]: Finished difference Result 183650 states and 256562 transitions. [2021-11-07 08:07:17,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 08:07:17,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2021-11-07 08:07:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:07:18,290 INFO L225 Difference]: With dead ends: 183650 [2021-11-07 08:07:18,290 INFO L226 Difference]: Without dead ends: 120622 [2021-11-07 08:07:18,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120622 states. [2021-11-07 08:07:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120622 to 120600. [2021-11-07 08:07:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120600 states, 120306 states have (on average 1.3961315312619487) internal successors, (167963), 120311 states have internal predecessors, (167963), 224 states have call successors, (224), 64 states have call predecessors, (224), 64 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2021-11-07 08:07:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120600 states to 120600 states and 168411 transitions. [2021-11-07 08:07:24,872 INFO L78 Accepts]: Start accepts. Automaton has 120600 states and 168411 transitions. Word has length 87 [2021-11-07 08:07:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:07:24,873 INFO L470 AbstractCegarLoop]: Abstraction has 120600 states and 168411 transitions. [2021-11-07 08:07:24,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2021-11-07 08:07:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 120600 states and 168411 transitions. [2021-11-07 08:07:24,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 08:07:24,887 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:07:24,887 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:07:24,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:07:24,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 08:07:24,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:07:24,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2021-11-07 08:07:24,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:07:24,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078675243] [2021-11-07 08:07:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:07:24,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:07:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:07:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:07:25,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:07:25,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078675243] [2021-11-07 08:07:25,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078675243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:07:25,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:07:25,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 08:07:25,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845785548] [2021-11-07 08:07:25,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 08:07:25,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:07:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 08:07:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 08:07:25,326 INFO L87 Difference]: Start difference. First operand 120600 states and 168411 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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)