./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.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 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 21:36:22,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 21:36:22,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 21:36:22,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 21:36:22,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 21:36:22,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 21:36:22,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 21:36:22,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 21:36:22,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 21:36:22,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 21:36:22,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 21:36:22,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 21:36:22,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 21:36:22,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 21:36:22,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 21:36:22,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 21:36:22,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 21:36:22,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 21:36:22,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 21:36:22,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 21:36:22,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 21:36:22,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 21:36:22,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 21:36:22,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 21:36:22,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 21:36:22,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 21:36:22,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 21:36:22,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 21:36:22,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 21:36:22,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 21:36:22,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 21:36:22,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 21:36:22,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 21:36:22,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 21:36:22,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 21:36:22,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 21:36:22,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 21:36:22,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 21:36:22,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 21:36:22,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 21:36:22,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 21:36:22,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 21:36:22,951 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 21:36:22,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 21:36:22,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 21:36:22,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 21:36:22,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 21:36:22,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 21:36:22,955 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 21:36:22,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 21:36:22,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 21:36:22,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 21:36:22,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 21:36:22,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 21:36:22,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 21:36:22,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 21:36:22,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 21:36:22,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 21:36:22,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 21:36:22,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 21:36:22,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 21:36:22,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:36:22,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 21:36:22,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 21:36:22,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 21:36:22,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 21:36:22,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 21:36:22,959 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 21:36:22,959 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 21:36:22,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 21:36:22,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 21:36:22,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73f101526b33e5f10b251e7a447b1a9d4ad6e1a0a49c040c0e548967272c8fbb [2021-11-05 21:36:23,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 21:36:23,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 21:36:23,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 21:36:23,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 21:36:23,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 21:36:23,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-05 21:36:23,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9f731667/931cbb0cd2c44ea6a6cebd0b34dd64e9/FLAG58ed6a6e6 [2021-11-05 21:36:24,314 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 21:36:24,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-05 21:36:24,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9f731667/931cbb0cd2c44ea6a6cebd0b34dd64e9/FLAG58ed6a6e6 [2021-11-05 21:36:24,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9f731667/931cbb0cd2c44ea6a6cebd0b34dd64e9 [2021-11-05 21:36:24,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 21:36:24,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 21:36:24,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 21:36:24,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 21:36:24,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 21:36:24,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:36:24" (1/1) ... [2021-11-05 21:36:24,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e545e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:24, skipping insertion in model container [2021-11-05 21:36:24,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:36:24" (1/1) ... [2021-11-05 21:36:24,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 21:36:25,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 21:36:30,483 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-11-05 21:36:30,486 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-11-05 21:36:30,487 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-11-05 21:36:30,487 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-11-05 21:36:30,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:36:30,616 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 21:36:31,265 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564438,564451] [2021-11-05 21:36:31,266 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564607,564620] [2021-11-05 21:36:31,267 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564774,564787] [2021-11-05 21:36:31,267 WARN L228 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-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[564942,564955] [2021-11-05 21:36:31,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:36:31,553 INFO L208 MainTranslator]: Completed translation [2021-11-05 21:36:31,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31 WrapperNode [2021-11-05 21:36:31,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 21:36:31,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 21:36:31,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 21:36:31,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 21:36:31,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:31,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:34,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 21:36:34,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 21:36:34,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 21:36:34,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 21:36:34,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:34,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:35,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:35,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:37,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:38,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:38,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:39,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 21:36:39,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 21:36:39,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 21:36:39,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 21:36:39,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (1/1) ... [2021-11-05 21:36:39,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:36:39,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 21:36:39,122 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) [2021-11-05 21:36:39,139 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 [2021-11-05 21:36:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure enic_notify_timer [2021-11-05 21:36:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_notify_timer [2021-11-05 21:36:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-05 21:36:39,154 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-05 21:36:39,154 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 21:36:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-05 21:36:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-05 21:36:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-05 21:36:39,155 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-05 21:36:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 21:36:39,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:36:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:36:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 21:36:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_4_2 [2021-11-05 21:36:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_4_2 [2021-11-05 21:36:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-05 21:36:39,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-05 21:36:39,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 21:36:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 21:36:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-05 21:36:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-05 21:36:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 21:36:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-05 21:36:39,158 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 21:36:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 21:36:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_4 [2021-11-05 21:36:39,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_4 [2021-11-05 21:36:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 21:36:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 21:36:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 21:36:39,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_86 [2021-11-05 21:36:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_86 [2021-11-05 21:36:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_9_2 [2021-11-05 21:36:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_9_2 [2021-11-05 21:36:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-05 21:36:39,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-05 21:36:39,160 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-05 21:36:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-05 21:36:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 21:36:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 21:36:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-05 21:36:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-05 21:36:39,161 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-05 21:36:39,161 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-05 21:36:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:36:39,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-05 21:36:39,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 21:50:24,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_3_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.base, ldv_pci_pci_instance_3_~#ldv_3_resource_pm_message~0.offset; [2021-11-05 21:50:24,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 21:50:24,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L13137: #t~ret2597 := main_#res; [2021-11-05 21:50:24,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel: main_#res := 0; [2021-11-05 21:50:28,168 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 21:50:28,168 INFO L299 CfgBuilder]: Removed 22088 assume(true) statements. [2021-11-05 21:50:28,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:50:28 BoogieIcfgContainer [2021-11-05 21:50:28,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 21:50:28,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 21:50:28,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 21:50:28,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 21:50:28,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:36:24" (1/3) ... [2021-11-05 21:50:28,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7370e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:50:28, skipping insertion in model container [2021-11-05 21:50:28,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:36:31" (2/3) ... [2021-11-05 21:50:28,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7370e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:50:28, skipping insertion in model container [2021-11-05 21:50:28,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:50:28" (3/3) ... [2021-11-05 21:50:28,197 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-05 21:50:28,200 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 21:50:28,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 239 error locations. [2021-11-05 21:50:28,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 21:50:28,328 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 21:50:28,328 INFO L340 AbstractCegarLoop]: Starting to check reachability of 239 error locations. [2021-11-05 21:50:28,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 28820 states, 28530 states have (on average 1.4478093235191027) internal successors, (41306), 28768 states have internal predecessors, (41306), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-05 21:50:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 21:50:28,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:50:28,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:50:28,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [enic_openErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr1ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 236 more)] === [2021-11-05 21:50:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:50:28,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1831395833, now seen corresponding path program 1 times [2021-11-05 21:50:28,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:50:28,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296232372] [2021-11-05 21:50:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:50:28,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:50:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:50:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:50:30,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:50:30,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296232372] [2021-11-05 21:50:30,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296232372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:50:30,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:50:30,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:50:30,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233325146] [2021-11-05 21:50:30,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:50:30,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 21:50:30,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:50:30,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 21:50:30,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 21:50:30,231 INFO L87 Difference]: Start difference. First operand has 28820 states, 28530 states have (on average 1.4478093235191027) internal successors, (41306), 28768 states have internal predecessors, (41306), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 21:50:32,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:50:32,411 INFO L93 Difference]: Finished difference Result 57442 states and 82466 transitions. [2021-11-05 21:50:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 21:50:32,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-05 21:50:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:50:32,577 INFO L225 Difference]: With dead ends: 57442 [2021-11-05 21:50:32,577 INFO L226 Difference]: Without dead ends: 28357 [2021-11-05 21:50:32,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 21:50:32,712 INFO L933 BasicCegarLoop]: 40690 mSDtfsCounter, 40003 mSDsluCounter, 41253 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 294.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40003 SdHoareTripleChecker+Valid, 81943 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 183.18ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 347.89ms IncrementalHoareTripleChecker+Time [2021-11-05 21:50:32,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40003 Valid, 81943 Invalid, 153 Unknown, 0 Unchecked, 183.18ms Time], IncrementalHoareTripleChecker [41 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 347.89ms Time] [2021-11-05 21:50:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28357 states. Killed by 15