./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:47:45,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:47:45,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:47:45,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:47:45,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:47:45,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:47:45,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:47:45,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:47:45,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:47:45,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:47:45,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:47:45,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:47:45,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:47:45,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:47:45,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:47:45,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:47:45,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:47:45,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:47:45,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:47:45,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:47:45,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:47:45,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:47:45,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:47:45,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:47:45,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:47:45,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:47:45,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:47:45,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:47:45,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:47:45,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:47:45,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:47:45,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:47:45,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:47:45,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:47:45,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:47:45,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:47:45,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:47:45,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:47:45,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:47:45,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:47:45,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:47:45,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:47:45,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:47:45,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:47:45,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:47:45,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:47:45,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:47:45,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:47:45,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:47:45,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:47:45,377 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:47:45,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:47:45,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:47:45,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:47:45,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:47:45,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:47:45,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:47:45,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:47:45,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:47:45,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:47:45,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:47:45,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:47:45,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:47:45,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:47:45,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:47:45,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:47:45,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:47:45,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:47:45,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:47:45,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:47:45,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:47:45,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:47:45,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:47:45,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-12-14 17:47:45,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:47:45,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:47:45,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:47:45,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:47:45,652 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:47:45,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-14 17:47:45,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ed6786e/69271ad0a32c4c878a128c54f75cb941/FLAG38e813e66 [2021-12-14 17:47:46,465 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:47:46,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-14 17:47:46,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ed6786e/69271ad0a32c4c878a128c54f75cb941/FLAG38e813e66 [2021-12-14 17:47:46,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5ed6786e/69271ad0a32c4c878a128c54f75cb941 [2021-12-14 17:47:46,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:47:46,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:47:46,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:47:46,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:47:46,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:47:46,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:46" (1/1) ... [2021-12-14 17:47:46,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6358a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:46, skipping insertion in model container [2021-12-14 17:47:46,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:46" (1/1) ... [2021-12-14 17:47:46,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:47:46,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:47:47,257 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-14 17:47:47,257 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-12-14 17:47:47,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-12-14 17:47:48,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:47:48,757 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:47:48,894 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-14 17:47:48,896 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-12-14 17:47:48,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-12-14 17:47:49,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:47:49,298 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:47:49,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49 WrapperNode [2021-12-14 17:47:49,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:47:49,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:47:49,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:47:49,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:47:49,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,596 INFO L137 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2021-12-14 17:47:49,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:47:49,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:47:49,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:47:49,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:47:49,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:47:49,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:47:49,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:47:49,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:47:49,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (1/1) ... [2021-12-14 17:47:49,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:47:49,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:47:49,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 17:47:49,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 17:47:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-14 17:47:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-14 17:47:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:47:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-14 17:47:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-14 17:47:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:47:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:47:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:47:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 17:47:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 17:47:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-12-14 17:47:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-12-14 17:47:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:47:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:47:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-12-14 17:47:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-12-14 17:47:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:47:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:47:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-14 17:47:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-12-14 17:47:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-12-14 17:47:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:47:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:47:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-12-14 17:47:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-12-14 17:47:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:47:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:47:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:47:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:47:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:47:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:47:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-14 17:47:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-14 17:47:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-12-14 17:47:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-12-14 17:47:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:47:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:47:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-14 17:47:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-14 17:47:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-14 17:47:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-14 17:47:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-12-14 17:47:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-12-14 17:47:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-12-14 17:47:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-12-14 17:47:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 17:47:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 17:47:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 17:47:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 17:47:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:47:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:47:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-12-14 17:47:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-12-14 17:47:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-12-14 17:47:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-12-14 17:47:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-12-14 17:47:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-12-14 17:47:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:47:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 17:47:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 17:47:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-12-14 17:47:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-12-14 17:47:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-14 17:47:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:47:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:47:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:47:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-14 17:47:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-14 17:47:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:47:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-14 17:47:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-14 17:47:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:47:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:47:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 17:47:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 17:47:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-12-14 17:47:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-12-14 17:47:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 17:47:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 17:47:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:47:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:47:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:47:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:47:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-12-14 17:47:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-12-14 17:47:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:47:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-12-14 17:47:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-12-14 17:47:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-12-14 17:47:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-12-14 17:47:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:47:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:47:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:47:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-12-14 17:47:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-12-14 17:47:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-12-14 17:47:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-12-14 17:47:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:47:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-12-14 17:47:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-12-14 17:47:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 17:47:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 17:47:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-12-14 17:47:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-12-14 17:47:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-14 17:47:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-14 17:47:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:47:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:47:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-12-14 17:47:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-12-14 17:47:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-14 17:47:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-14 17:47:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:47:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:47:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:47:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:47:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-14 17:47:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-14 17:47:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:47:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:47:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-12-14 17:47:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-12-14 17:47:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-12-14 17:47:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-12-14 17:47:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:47:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-12-14 17:47:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-12-14 17:47:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-12-14 17:47:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-12-14 17:47:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:47:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:47:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-12-14 17:47:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-12-14 17:47:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-12-14 17:47:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-12-14 17:47:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-12-14 17:47:49,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-14 17:47:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:47:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-14 17:47:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-14 17:47:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:47:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:47:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-12-14 17:47:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-12-14 17:47:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-14 17:47:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-14 17:47:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-14 17:47:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-14 17:47:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-12-14 17:47:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-12-14 17:47:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:47:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 17:47:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-14 17:47:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-14 17:47:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-12-14 17:47:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-12-14 17:47:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:47:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:47:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-12-14 17:47:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-12-14 17:47:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:47:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-12-14 17:47:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-12-14 17:47:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-12-14 17:47:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-12-14 17:47:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-14 17:47:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-14 17:47:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:47:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:47:50,695 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:47:50,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:47:50,852 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:47:57,376 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-14 17:47:58,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2021-12-14 17:47:58,535 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2021-12-14 17:48:04,475 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:48:04,511 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:48:04,511 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:48:04,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:04 BoogieIcfgContainer [2021-12-14 17:48:04,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:48:04,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:48:04,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:48:04,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:48:04,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:47:46" (1/3) ... [2021-12-14 17:48:04,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c2322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:04, skipping insertion in model container [2021-12-14 17:48:04,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:49" (2/3) ... [2021-12-14 17:48:04,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c2322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:48:04, skipping insertion in model container [2021-12-14 17:48:04,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:48:04" (3/3) ... [2021-12-14 17:48:04,524 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-14 17:48:04,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:48:04,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:48:04,577 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:48:04,583 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 [2021-12-14 17:48:04,583 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:48:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2021-12-14 17:48:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 17:48:04,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:04,639 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:48:04,639 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:04,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-12-14 17:48:04,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:04,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707428608] [2021-12-14 17:48:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:04,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-14 17:48:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-14 17:48:05,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:05,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707428608] [2021-12-14 17:48:05,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707428608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:05,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:05,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:48:05,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905711362] [2021-12-14 17:48:05,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:05,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:48:05,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:05,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:48:05,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:48:05,494 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:48:07,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:48:10,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:48:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:19,180 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-12-14 17:48:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2021-12-14 17:48:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:19,221 INFO L225 Difference]: With dead ends: 4987 [2021-12-14 17:48:19,221 INFO L226 Difference]: Without dead ends: 3271 [2021-12-14 17:48:19,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:19,236 INFO L933 BasicCegarLoop]: 2667 mSDtfsCounter, 2717 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 805 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:19,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2975 Valid, 5910 Invalid, 2113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1307 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2021-12-14 17:48:19,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-12-14 17:48:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-12-14 17:48:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2340 states have (on average 1.3858974358974359) internal successors, (3243), 2398 states have internal predecessors, (3243), 669 states have call successors, (669), 151 states have call predecessors, (669), 150 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2021-12-14 17:48:19,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-12-14 17:48:19,468 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-12-14 17:48:19,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:19,469 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-12-14 17:48:19,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:48:19,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-12-14 17:48:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-14 17:48:19,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:19,476 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:48:19,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:48:19,477 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:19,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:19,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2021-12-14 17:48:19,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:19,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864129185] [2021-12-14 17:48:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:19,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:48:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:48:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:48:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:48:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:48:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:48:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:48:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:48:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:48:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:19,990 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-14 17:48:19,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:19,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864129185] [2021-12-14 17:48:19,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864129185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:19,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:19,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:48:19,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072506089] [2021-12-14 17:48:19,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:19,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:48:19,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:19,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:48:19,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:48:19,993 INFO L87 Difference]: Start difference. First operand 3160 states and 4580 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:48:22,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:48:28,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []