./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ --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 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:18:18,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:18:18,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:18:18,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:18:18,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:18:18,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:18:18,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:18:18,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:18:18,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:18:18,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:18:18,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:18:18,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:18:18,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:18:18,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:18:18,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:18:18,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:18:18,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:18:18,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:18:18,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:18:18,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:18:18,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:18:18,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:18:18,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:18:18,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:18:18,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:18:18,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:18:18,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:18:18,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:18:18,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:18:18,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:18:18,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:18:18,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:18:18,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:18:18,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:18:18,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:18:18,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:18:18,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:18:18,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:18:18,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:18:18,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:18:18,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:18:18,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:18:18,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:18:18,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:18:18,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:18:18,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:18:18,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:18:18,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:18:18,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:18:18,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:18:18,957 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:18:18,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:18:18,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:18:18,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:18:18,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:18:18,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:18:18,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:18:18,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:18:18,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:18:18,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:18:18,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:18:18,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:18:18,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:18:18,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:18:18,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:18:18,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:18:18,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:18:18,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:18:18,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:18:18,961 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:18:18,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:18:18,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:18:18,961 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_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2022-10-17 10:18:19,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:18:19,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:18:19,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:18:19,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:18:19,244 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:18:19,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-17 10:18:19,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/data/4a767a39d/d8a073d09b364419bca188a0bd2d442c/FLAGd440bdebd [2022-10-17 10:18:20,266 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:18:20,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-17 10:18:20,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/data/4a767a39d/d8a073d09b364419bca188a0bd2d442c/FLAGd440bdebd [2022-10-17 10:18:20,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/data/4a767a39d/d8a073d09b364419bca188a0bd2d442c [2022-10-17 10:18:20,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:18:20,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:18:20,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:18:20,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:18:20,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:18:20,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:18:20" (1/1) ... [2022-10-17 10:18:20,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc5d587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:20, skipping insertion in model container [2022-10-17 10:18:20,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:18:20" (1/1) ... [2022-10-17 10:18:20,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:18:20,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:18:24,024 WARN L230 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_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-10-17 10:18:24,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:24,135 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:18:24,654 WARN L230 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_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-10-17 10:18:24,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:18:24,898 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:18:24,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24 WrapperNode [2022-10-17 10:18:24,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:18:24,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:24,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:18:24,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:18:24,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,365 INFO L138 Inliner]: procedures = 336, calls = 2288, calls flagged for inlining = 154, calls inlined = 152, statements flattened = 5863 [2022-10-17 10:18:25,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:18:25,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:18:25,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:18:25,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:18:25,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:18:25,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:18:25,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:18:25,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:18:25,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (1/1) ... [2022-10-17 10:18:25,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:18:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:18:25,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:18:25,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab88eb6-cfc4-446e-b9a3-5d60c72ba8f6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:18:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-10-17 10:18:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-10-17 10:18:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-17 10:18:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-17 10:18:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-10-17 10:18:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-10-17 10:18:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-10-17 10:18:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-10-17 10:18:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-17 10:18:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-10-17 10:18:25,919 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-10-17 10:18:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:18:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-10-17 10:18:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-10-17 10:18:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:18:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:18:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:18:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:18:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:18:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-17 10:18:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-17 10:18:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-17 10:18:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-17 10:18:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-10-17 10:18:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-17 10:18:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-17 10:18:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-17 10:18:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 10:18:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 10:18:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:18:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:18:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-10-17 10:18:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-10-17 10:18:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-10-17 10:18:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-10-17 10:18:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-10-17 10:18:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-10-17 10:18:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-10-17 10:18:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-10-17 10:18:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 10:18:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 10:18:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:18:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:18:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-10-17 10:18:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-10-17 10:18:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 10:18:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 10:18:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:18:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:18:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-10-17 10:18:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-10-17 10:18:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:18:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:18:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 10:18:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 10:18:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:18:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:18:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-10-17 10:18:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-10-17 10:18:25,926 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-10-17 10:18:25,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-10-17 10:18:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 10:18:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 10:18:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-10-17 10:18:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-10-17 10:18:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:18:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 10:18:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 10:18:25,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-10-17 10:18:25,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-10-17 10:18:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-10-17 10:18:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-10-17 10:18:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-10-17 10:18:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-10-17 10:18:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:18:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-10-17 10:18:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-10-17 10:18:25,928 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-10-17 10:18:25,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-17 10:18:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-10-17 10:18:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 10:18:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:18:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:18:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-10-17 10:18:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-10-17 10:18:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-10-17 10:18:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-10-17 10:18:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-17 10:18:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-17 10:18:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-10-17 10:18:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-10-17 10:18:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 10:18:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 10:18:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 10:18:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 10:18:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 10:18:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 10:18:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-10-17 10:18:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-10-17 10:18:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-17 10:18:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-17 10:18:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:18:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:18:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:18:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:18:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-10-17 10:18:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-10-17 10:18:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-10-17 10:18:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-10-17 10:18:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:18:25,932 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:18:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-17 10:18:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-17 10:18:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:18:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-10-17 10:18:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-10-17 10:18:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:18:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:18:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-10-17 10:18:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-10-17 10:18:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-10-17 10:18:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-10-17 10:18:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:18:25,934 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:18:25,934 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:18:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-10-17 10:18:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-10-17 10:18:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-10-17 10:18:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-10-17 10:18:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-10-17 10:18:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-10-17 10:18:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-10-17 10:18:25,935 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-10-17 10:18:25,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:18:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:18:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-10-17 10:18:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-10-17 10:18:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-10-17 10:18:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-10-17 10:18:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-10-17 10:18:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-10-17 10:18:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-10-17 10:18:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-10-17 10:18:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-17 10:18:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-17 10:18:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 10:18:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 10:18:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-10-17 10:18:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-10-17 10:18:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-10-17 10:18:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2022-10-17 10:18:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:18:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-10-17 10:18:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-10-17 10:18:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-10-17 10:18:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:18:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:18:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-10-17 10:18:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-10-17 10:18:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 10:18:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 10:18:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-10-17 10:18:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-10-17 10:18:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-10-17 10:18:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-10-17 10:18:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:18:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 10:18:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-17 10:18:25,941 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 10:18:25,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 10:18:25,941 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:18:25,941 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-17 10:18:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-17 10:18:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:18:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-10-17 10:18:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-10-17 10:18:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:18:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:18:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-17 10:18:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-17 10:18:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-10-17 10:18:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-10-17 10:18:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-17 10:18:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-17 10:18:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 10:18:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 10:18:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 10:18:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 10:18:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-10-17 10:18:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-10-17 10:18:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 10:18:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 10:18:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-10-17 10:18:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-10-17 10:18:25,991 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:18:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:18:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-10-17 10:18:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-10-17 10:18:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:18:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:18:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-10-17 10:18:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-10-17 10:18:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-10-17 10:18:25,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-10-17 10:18:25,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 10:18:25,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 10:18:25,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:18:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:18:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-17 10:18:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-17 10:18:25,994 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:18:25,994 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:18:26,883 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:18:26,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:18:27,796 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:18:32,739 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:18:32,780 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:18:32,781 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:18:32,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:32 BoogieIcfgContainer [2022-10-17 10:18:32,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:18:32,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:18:32,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:18:32,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:18:32,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:18:20" (1/3) ... [2022-10-17 10:18:32,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ae4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:18:32, skipping insertion in model container [2022-10-17 10:18:32,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:18:24" (2/3) ... [2022-10-17 10:18:32,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c6ae4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:18:32, skipping insertion in model container [2022-10-17 10:18:32,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:18:32" (3/3) ... [2022-10-17 10:18:32,800 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-17 10:18:32,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:18:32,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:18:32,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:18:32,962 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@651b44f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:18:32,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:18:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) [2022-10-17 10:18:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-17 10:18:33,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:33,028 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:18:33,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1518773854, now seen corresponding path program 1 times [2022-10-17 10:18:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:33,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42114099] [2022-10-17 10:18:33,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:18:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:18:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:18:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:18:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:18:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:18:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:18:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:18:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:18:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-17 10:18:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-17 10:18:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 10:18:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-17 10:18:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-17 10:18:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-17 10:18:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-10-17 10:18:34,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:34,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42114099] [2022-10-17 10:18:34,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42114099] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:34,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:34,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:18:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269237316] [2022-10-17 10:18:34,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:34,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:18:34,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:34,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:18:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:18:34,685 INFO L87 Difference]: Start difference. First operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 10:18:37,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:18:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:18:45,498 INFO L93 Difference]: Finished difference Result 4820 states and 7294 transitions. [2022-10-17 10:18:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:18:45,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-10-17 10:18:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:18:45,585 INFO L225 Difference]: With dead ends: 4820 [2022-10-17 10:18:45,585 INFO L226 Difference]: Without dead ends: 2661 [2022-10-17 10:18:45,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:18:45,620 INFO L413 NwaCegarLoop]: 2922 mSDtfsCounter, 1898 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 1448 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 5479 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1448 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:18:45,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 5479 Invalid, 3656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1448 Valid, 2207 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-10-17 10:18:45,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2022-10-17 10:18:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2108. [2022-10-17 10:18:45,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1478 states have (on average 1.3687415426251692) internal successors, (2023), 1540 states have internal predecessors, (2023), 507 states have call successors, (507), 123 states have call predecessors, (507), 122 states have return successors, (506), 486 states have call predecessors, (506), 506 states have call successors, (506) [2022-10-17 10:18:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 3036 transitions. [2022-10-17 10:18:45,928 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 3036 transitions. Word has length 225 [2022-10-17 10:18:45,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:18:45,929 INFO L495 AbstractCegarLoop]: Abstraction has 2108 states and 3036 transitions. [2022-10-17 10:18:45,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 10:18:45,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 3036 transitions. [2022-10-17 10:18:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-17 10:18:45,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:18:45,942 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:18:45,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:18:45,943 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:18:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:18:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash 119169102, now seen corresponding path program 1 times [2022-10-17 10:18:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:18:45,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561416942] [2022-10-17 10:18:45,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:18:45,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:18:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:18:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:18:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:18:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:18:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:18:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:18:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:18:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 10:18:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 10:18:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-17 10:18:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-17 10:18:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-17 10:18:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 10:18:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-17 10:18:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-17 10:18:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-10-17 10:18:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:18:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:18:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-10-17 10:18:47,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:18:47,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561416942] [2022-10-17 10:18:47,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561416942] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:18:47,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:18:47,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:18:47,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604741324] [2022-10-17 10:18:47,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:18:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:18:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:18:47,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:18:47,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:18:47,015 INFO L87 Difference]: Start difference. First operand 2108 states and 3036 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)