./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 e19ca921 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-dev-e19ca92 [2021-12-22 14:42:03,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:42:03,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:42:03,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:42:03,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:42:03,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:42:03,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:42:03,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:42:03,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:42:03,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:42:03,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:42:03,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:42:03,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:42:03,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:42:03,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:42:03,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:42:03,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:42:03,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:42:03,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:42:03,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:42:03,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:42:03,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:42:03,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:42:03,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:42:03,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:42:03,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:42:03,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:42:03,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:42:03,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:42:03,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:42:03,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:42:03,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:42:03,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:42:03,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:42:03,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:42:03,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:42:03,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:42:03,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:42:03,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:42:03,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:42:03,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:42:03,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:42:03,219 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:42:03,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:42:03,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:42:03,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:42:03,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:42:03,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:42:03,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:42:03,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:42:03,222 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:42:03,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:42:03,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:42:03,225 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:42:03,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:42:03,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:42:03,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:42:03,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:42:03,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:42:03,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:42:03,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:42:03,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:42:03,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:42:03,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:42:03,227 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:42:03,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:42:03,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:42:03,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:42:03,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-12-22 14:42:03,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:42:03,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:42:03,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:42:03,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:42:03,527 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:42:03,529 INFO L432 ainManager$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 [2021-12-22 14:42:03,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac0aa82d/9126eee87ad2499a8741c1396d74e3ef/FLAG37aa24f7f [2021-12-22 14:42:04,410 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:42:04,411 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 [2021-12-22 14:42:04,462 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac0aa82d/9126eee87ad2499a8741c1396d74e3ef/FLAG37aa24f7f [2021-12-22 14:42:04,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac0aa82d/9126eee87ad2499a8741c1396d74e3ef [2021-12-22 14:42:04,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:42:04,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:42:04,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:42:04,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:42:04,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:42:04,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:04" (1/1) ... [2021-12-22 14:42:04,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20796edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:04, skipping insertion in model container [2021-12-22 14:42:04,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:42:04" (1/1) ... [2021-12-22 14:42:04,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:42:04,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:42:05,317 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-22 14:42:05,318 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] [2021-12-22 14:42:05,865 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] [2021-12-22 14:42:06,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:42:06,795 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:42:06,901 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-22 14:42:06,903 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] [2021-12-22 14:42:06,916 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] [2021-12-22 14:42:07,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:42:07,410 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:42:07,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07 WrapperNode [2021-12-22 14:42:07,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:42:07,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:42:07,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:42:07,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:42:07,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,650 INFO L137 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2021-12-22 14:42:07,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:42:07,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:42:07,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:42:07,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:42:07,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:42:07,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:42:07,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:42:07,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:42:07,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (1/1) ... [2021-12-22 14:42:07,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:42:07,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:42:07,894 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) [2021-12-22 14:42:07,918 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 [2021-12-22 14:42:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-22 14:42:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-22 14:42:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:42:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-22 14:42:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-22 14:42:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:42:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:42:07,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:42:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 14:42:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 14:42:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-12-22 14:42:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-12-22 14:42:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:42:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:42:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-12-22 14:42:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-12-22 14:42:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:42:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:42:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-22 14:42:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-12-22 14:42:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-12-22 14:42:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:42:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:42:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-12-22 14:42:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-12-22 14:42:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:42:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:42:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:42:07,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:42:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 14:42:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 14:42:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-22 14:42:07,946 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-22 14:42:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-12-22 14:42:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-12-22 14:42:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:42:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:42:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-22 14:42:07,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-22 14:42:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-22 14:42:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-22 14:42:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-12-22 14:42:07,948 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-12-22 14:42:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-12-22 14:42:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-12-22 14:42:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 14:42:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 14:42:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-22 14:42:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-22 14:42:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:42:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-22 14:42:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-12-22 14:42:07,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-12-22 14:42:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-12-22 14:42:07,951 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-12-22 14:42:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-12-22 14:42:07,952 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-12-22 14:42:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:42:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-22 14:42:07,952 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-22 14:42:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-12-22 14:42:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-12-22 14:42:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-22 14:42:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:42:07,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:42:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:42:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-22 14:42:07,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-22 14:42:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:42:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-22 14:42:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-22 14:42:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:42:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:42:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 14:42:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 14:42:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-12-22 14:42:07,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-12-22 14:42:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 14:42:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 14:42:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 14:42:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 14:42:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:42:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:42:07,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:42:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-12-22 14:42:07,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-12-22 14:42:07,957 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:42:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:42:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-12-22 14:42:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-12-22 14:42:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-12-22 14:42:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-12-22 14:42:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:42:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:42:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:42:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-12-22 14:42:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-12-22 14:42:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-12-22 14:42:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-12-22 14:42:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:42:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-12-22 14:42:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-12-22 14:42:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 14:42:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 14:42:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-12-22 14:42:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-12-22 14:42:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-22 14:42:07,960 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-22 14:42:07,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:42:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:42:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-12-22 14:42:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-12-22 14:42:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-22 14:42:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-22 14:42:07,961 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:42:07,961 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-22 14:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-22 14:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:42:07,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:42:07,962 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-12-22 14:42:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-12-22 14:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-12-22 14:42:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-12-22 14:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-12-22 14:42:07,963 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-12-22 14:42:07,963 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-12-22 14:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-12-22 14:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-12-22 14:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-12-22 14:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-12-22 14:42:07,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-12-22 14:42:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-12-22 14:42:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-12-22 14:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-22 14:42:07,965 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-22 14:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:42:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-22 14:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-22 14:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-12-22 14:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-12-22 14:42:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-22 14:42:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-22 14:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-22 14:42:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-22 14:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-12-22 14:42:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-12-22 14:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:42:07,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:42:07,967 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-22 14:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-22 14:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-12-22 14:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-12-22 14:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:42:07,968 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-12-22 14:42:07,968 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-12-22 14:42:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:42:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-12-22 14:42:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-12-22 14:42:07,969 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-12-22 14:42:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-12-22 14:42:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-22 14:42:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-22 14:42:07,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:42:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:42:08,722 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:42:08,727 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:42:08,890 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:42:16,044 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:42:18,343 INFO L766 $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; [2021-12-22 14:42:18,344 INFO L766 $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; [2021-12-22 14:42:24,645 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:42:24,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:42:24,667 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:42:24,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:24 BoogieIcfgContainer [2021-12-22 14:42:24,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:42:24,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:42:24,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:42:24,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:42:24,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:42:04" (1/3) ... [2021-12-22 14:42:24,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6ff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:24, skipping insertion in model container [2021-12-22 14:42:24,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:42:07" (2/3) ... [2021-12-22 14:42:24,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac6ff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:42:24, skipping insertion in model container [2021-12-22 14:42:24,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:42:24" (3/3) ... [2021-12-22 14:42:24,689 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 [2021-12-22 14:42:24,695 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:42:24,695 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:42:24,754 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:42:24,775 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 [2021-12-22 14:42:24,776 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:42:24,839 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) [2021-12-22 14:42:24,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-22 14:42:24,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:24,859 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] [2021-12-22 14:42:24,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:24,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-12-22 14:42:24,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:24,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182013643] [2021-12-22 14:42:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:24,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:42:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-22 14:42:25,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:25,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182013643] [2021-12-22 14:42:25,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182013643] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:25,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:25,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:42:25,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305612822] [2021-12-22 14:42:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:25,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:42:25,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:42:25,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:42:25,881 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) [2021-12-22 14:42:28,410 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 [] [2021-12-22 14:42:30,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:42:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:42:38,940 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-12-22 14:42:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:42:38,943 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 [2021-12-22 14:42:38,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:42:38,983 INFO L225 Difference]: With dead ends: 4987 [2021-12-22 14:42:38,983 INFO L226 Difference]: Without dead ends: 3271 [2021-12-22 14:42:38,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:42:39,005 INFO L933 BasicCegarLoop]: 2668 mSDtfsCounter, 2717 mSDsluCounter, 3244 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 805 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2974 SdHoareTripleChecker+Valid, 5912 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:42:39,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2974 Valid, 5912 Invalid, 2113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1307 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2021-12-22 14:42:39,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-12-22 14:42:39,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-12-22 14:42:39,250 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) [2021-12-22 14:42:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-12-22 14:42:39,281 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-12-22 14:42:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:42:39,283 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-12-22 14:42:39,283 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) [2021-12-22 14:42:39,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-12-22 14:42:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-22 14:42:39,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:42:39,292 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] [2021-12-22 14:42:39,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:42:39,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:42:39,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:42:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2021-12-22 14:42:39,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:42:39,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731574401] [2021-12-22 14:42:39,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:42:39,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:42:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:42:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:42:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:42:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:42:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:42:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:42:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:42:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:42:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:42:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:42:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 14:42:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:42:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-22 14:42:39,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:42:39,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731574401] [2021-12-22 14:42:39,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731574401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:42:39,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:42:39,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:42:39,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062033863] [2021-12-22 14:42:39,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:42:39,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:42:39,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:42:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:42:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:42:39,901 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) [2021-12-22 14:42:42,557 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 []