./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-16 04:02:04,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:02:04,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:02:04,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:02:04,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:02:04,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:02:04,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:02:04,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:02:04,571 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:02:04,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:02:04,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:02:04,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:02:04,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:02:04,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:02:04,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:02:04,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:02:04,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:02:04,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:02:04,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:02:04,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:02:04,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:02:04,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:02:04,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:02:04,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:02:04,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:02:04,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:02:04,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:02:04,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:02:04,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:02:04,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:02:04,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:02:04,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:02:04,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:02:04,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:02:04,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:02:04,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:02:04,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:02:04,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:02:04,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:02:04,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:02:04,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:02:04,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:02:04,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:02:04,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:02:04,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:02:04,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:02:04,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:02:04,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:02:04,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:02:04,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:02:04,654 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:02:04,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:02:04,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:02:04,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:02:04,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:02:04,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:02:04,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:02:04,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:02:04,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:02:04,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:02:04,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:02:04,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:02:04,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-12-16 04:02:04,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:02:04,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:02:04,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:02:04,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:02:04,931 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:02:04,932 INFO L432 ainManager$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 [2021-12-16 04:02:04,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ec067d/168dccc651ea449388766604a6c16920/FLAG0eea907ef [2021-12-16 04:02:05,678 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:02:05,679 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 [2021-12-16 04:02:05,721 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ec067d/168dccc651ea449388766604a6c16920/FLAG0eea907ef [2021-12-16 04:02:06,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e09ec067d/168dccc651ea449388766604a6c16920 [2021-12-16 04:02:06,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:02:06,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:02:06,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:02:06,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:02:06,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:02:06,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:02:06" (1/1) ... [2021-12-16 04:02:06,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52036f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:06, skipping insertion in model container [2021-12-16 04:02:06,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:02:06" (1/1) ... [2021-12-16 04:02:06,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:02:06,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:02:06,604 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-16 04:02:06,605 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] [2021-12-16 04:02:07,186 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] [2021-12-16 04:02:08,206 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:02:08,241 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:02:08,353 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-16 04:02:08,355 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] [2021-12-16 04:02:08,370 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] [2021-12-16 04:02:08,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:02:08,804 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:02:08,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08 WrapperNode [2021-12-16 04:02:08,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:02:08,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:02:08,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:02:08,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:02:08,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:08,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,018 INFO L137 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2021-12-16 04:02:09,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:02:09,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:02:09,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:02:09,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:02:09,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:02:09,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:02:09,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:02:09,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:02:09,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (1/1) ... [2021-12-16 04:02:09,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:02:09,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:02:09,275 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) [2021-12-16 04:02:09,285 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 [2021-12-16 04:02:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-16 04:02:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-16 04:02:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:02:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-16 04:02:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-16 04:02:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:02:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:02:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:02:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-16 04:02:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-16 04:02:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-12-16 04:02:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-12-16 04:02:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:02:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:02:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-12-16 04:02:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-12-16 04:02:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:02:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:02:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-16 04:02:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-12-16 04:02:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-12-16 04:02:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:02:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:02:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-12-16 04:02:09,355 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-12-16 04:02:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:02:09,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:02:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:02:09,355 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:02:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-16 04:02:09,355 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-16 04:02:09,356 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-16 04:02:09,356 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:02:09,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:02:09,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-16 04:02:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:02:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-12-16 04:02:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-12-16 04:02:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:02:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:02:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-12-16 04:02:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-12-16 04:02:09,361 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-16 04:02:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-16 04:02:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-12-16 04:02:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-12-16 04:02:09,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:02:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-12-16 04:02:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-12-16 04:02:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-12-16 04:02:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-12-16 04:02:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-16 04:02:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-16 04:02:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:02:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:02:10,026 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:02:10,028 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:02:10,260 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:02:16,376 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-16 04:02:19,280 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; [2021-12-16 04:02:19,280 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; [2021-12-16 04:02:24,700 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:02:24,716 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:02:24,717 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:02:24,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:02:24 BoogieIcfgContainer [2021-12-16 04:02:24,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:02:24,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:02:24,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:02:24,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:02:24,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:02:06" (1/3) ... [2021-12-16 04:02:24,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a139360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:02:24, skipping insertion in model container [2021-12-16 04:02:24,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:02:08" (2/3) ... [2021-12-16 04:02:24,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a139360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:02:24, skipping insertion in model container [2021-12-16 04:02:24,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:02:24" (3/3) ... [2021-12-16 04:02:24,727 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 [2021-12-16 04:02:24,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:02:24,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:02:24,767 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:02:24,772 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 [2021-12-16 04:02:24,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:02:24,814 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) [2021-12-16 04:02:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 04:02:24,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:02:24,826 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] [2021-12-16 04:02:24,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:02:24,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:02:24,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-12-16 04:02:24,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:02:24,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124648319] [2021-12-16 04:02:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:02:24,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:02:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:02:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:02:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:02:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:02:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:02:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:02:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 04:02:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 04:02:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:02:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:02:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 04:02:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-16 04:02:25,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:02:25,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124648319] [2021-12-16 04:02:25,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124648319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:02:25,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:02:25,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:02:25,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821598807] [2021-12-16 04:02:25,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:02:25,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:02:25,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:02:25,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:02:25,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:02:25,496 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) [2021-12-16 04:02:27,840 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 [] [2021-12-16 04:02:30,964 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 [] [2021-12-16 04:02:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:02:38,946 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-12-16 04:02:38,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:02:38,952 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 [2021-12-16 04:02:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:02:39,002 INFO L225 Difference]: With dead ends: 4987 [2021-12-16 04:02:39,002 INFO L226 Difference]: Without dead ends: 3271 [2021-12-16 04:02:39,021 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 [2021-12-16 04:02:39,024 INFO L933 BasicCegarLoop]: 2671 mSDtfsCounter, 2717 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 805 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 5920 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:02:39,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2973 Valid, 5920 Invalid, 2114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1307 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2021-12-16 04:02:39,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-12-16 04:02:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-12-16 04:02:39,204 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) [2021-12-16 04:02:39,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-12-16 04:02:39,227 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-12-16 04:02:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:02:39,229 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-12-16 04:02:39,229 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) [2021-12-16 04:02:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-12-16 04:02:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-16 04:02:39,238 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:02:39,238 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] [2021-12-16 04:02:39,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:02:39,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:02:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:02:39,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2021-12-16 04:02:39,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:02:39,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630138737] [2021-12-16 04:02:39,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:02:39,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:02:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:02:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:02:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:02:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:02:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-16 04:02:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-16 04:02:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 04:02:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 04:02:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:02:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:02:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-16 04:02:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:02:39,703 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-16 04:02:39,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:02:39,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630138737] [2021-12-16 04:02:39,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630138737] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:02:39,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:02:39,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:02:39,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26538757] [2021-12-16 04:02:39,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:02:39,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:02:39,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:02:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:02:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:02:39,706 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) [2021-12-16 04:02:42,273 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 [] [2021-12-16 04:02:48,083 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 []