./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_complex_emg_linux-usb-dev_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 1cfa724a0e5488a49a255704f489ef5170fce458d5f4c6e72fccac09d818b317 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:11:03,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:11:03,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:11:03,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:11:03,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:11:03,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:11:03,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:11:03,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:11:03,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:11:03,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:11:03,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:11:03,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:11:03,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:11:03,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:11:03,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:11:03,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:11:03,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:11:03,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:11:03,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:11:03,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:11:03,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:11:03,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:11:03,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:11:03,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:11:03,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:11:03,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:11:03,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:11:03,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:11:03,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:11:03,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:11:03,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:11:03,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:11:03,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:11:03,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:11:03,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:11:03,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:11:03,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:11:03,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:11:03,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:11:03,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:11:03,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:11:03,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:11:04,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:11:04,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:11:04,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:11:04,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:11:04,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:11:04,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:11:04,007 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:11:04,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:11:04,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:11:04,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:11:04,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:11:04,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:11:04,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:11:04,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:11:04,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:11:04,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:11:04,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:11:04,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:11:04,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:11:04,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:11:04,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:11:04,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:11:04,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:11:04,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:11:04,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfa724a0e5488a49a255704f489ef5170fce458d5f4c6e72fccac09d818b317 [2021-11-06 19:11:04,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:11:04,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:11:04,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:11:04,237 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:11:04,238 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:11:04,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 19:11:04,304 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6b0fe55/65a1fe6d0ea240f48f4a984b2cf080e3/FLAG86c8f57ea [2021-11-06 19:11:04,968 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:11:04,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 19:11:05,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6b0fe55/65a1fe6d0ea240f48f4a984b2cf080e3/FLAG86c8f57ea [2021-11-06 19:11:05,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b6b0fe55/65a1fe6d0ea240f48f4a984b2cf080e3 [2021-11-06 19:11:05,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:11:05,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:11:05,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:11:05,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:11:05,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:11:05,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:11:05" (1/1) ... [2021-11-06 19:11:05,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2a68d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:05, skipping insertion in model container [2021-11-06 19:11:05,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:11:05" (1/1) ... [2021-11-06 19:11:05,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:11:05,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:11:08,308 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[522832,522845] [2021-11-06 19:11:08,310 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[522979,522992] [2021-11-06 19:11:08,314 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[523118,523131] [2021-11-06 19:11:08,315 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[523276,523289] [2021-11-06 19:11:08,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:11:08,408 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:11:08,826 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[522832,522845] [2021-11-06 19:11:08,827 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[522979,522992] [2021-11-06 19:11:08,827 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[523118,523131] [2021-11-06 19:11:08,827 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_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i[523276,523289] [2021-11-06 19:11:08,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:11:09,073 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:11:09,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09 WrapperNode [2021-11-06 19:11:09,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:11:09,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:11:09,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:11:09,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:11:09,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:09,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:11,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:11:11,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:11:11,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:11:11,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:11:11,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:11,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:12,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:12,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:13,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:14,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:14,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:14,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:11:14,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:11:14,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:11:14,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:11:14,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (1/1) ... [2021-11-06 19:11:14,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:11:14,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:11:14,891 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) [2021-11-06 19:11:14,892 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 [2021-11-06 19:11:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-06 19:11:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-06 19:11:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 19:11:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-06 19:11:14,948 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-06 19:11:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:11:14,948 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-06 19:11:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:11:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:11:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:11:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 19:11:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:11:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 19:11:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-06 19:11:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-06 19:11:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:11:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:11:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-06 19:11:14,951 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:11:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:11:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-06 19:11:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-06 19:11:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:11:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-06 19:11:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-06 19:11:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:11:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 19:11:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:25:19,921 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 19:25:19,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 19:25:19,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 19:25:19,922 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 19:25:19,925 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:25:19,926 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 19:25:23,366 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:25:23,366 INFO L299 CfgBuilder]: Removed 20448 assume(true) statements. [2021-11-06 19:25:23,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:25:23 BoogieIcfgContainer [2021-11-06 19:25:23,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:25:23,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:25:23,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:25:23,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:25:23,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:11:05" (1/3) ... [2021-11-06 19:25:23,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343f2cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:25:23, skipping insertion in model container [2021-11-06 19:25:23,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:11:09" (2/3) ... [2021-11-06 19:25:23,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343f2cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:25:23, skipping insertion in model container [2021-11-06 19:25:23,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:25:23" (3/3) ... [2021-11-06 19:25:23,391 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-06 19:25:23,395 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:25:23,395 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-06 19:25:23,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:25:23,474 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 [2021-11-06 19:25:23,474 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-06 19:25:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 27223 states, 27185 states have (on average 1.4480044141990067) internal successors, (39364), 27187 states have internal predecessors, (39364), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-06 19:25:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 19:25:23,714 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:25:23,715 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:25:23,715 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 19:25:23,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:25:23,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1411632568, now seen corresponding path program 1 times [2021-11-06 19:25:23,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:25:23,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987437603] [2021-11-06 19:25:23,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:25:23,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:25:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:25:24,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:25:24,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:25:24,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987437603] [2021-11-06 19:25:24,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987437603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:25:24,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:25:24,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:25:24,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457191715] [2021-11-06 19:25:24,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:25:24,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:25:24,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:25:24,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:25:24,946 INFO L87 Difference]: Start difference. First operand has 27223 states, 27185 states have (on average 1.4480044141990067) internal successors, (39364), 27187 states have internal predecessors, (39364), 25 states have call successors, (25), 10 states have call predecessors, (25), 10 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-06 19:25:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:25:28,599 INFO L93 Difference]: Finished difference Result 80997 states and 117319 transitions. [2021-11-06 19:25:28,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:25:28,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-06 19:25:28,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:25:28,853 INFO L225 Difference]: With dead ends: 80997 [2021-11-06 19:25:28,854 INFO L226 Difference]: Without dead ends: 53641 [2021-11-06 19:25:28,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:25:29,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53641 states. [2021-11-06 19:25:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53641 to 53639. [2021-11-06 19:25:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53639 states, 53566 states have (on average 1.4383750886756526) internal successors, (77048), 53568 states have internal predecessors, (77048), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-06 19:25:30,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53639 states to 53639 states and 77148 transitions. [2021-11-06 19:25:30,527 INFO L78 Accepts]: Start accepts. Automaton has 53639 states and 77148 transitions. Word has length 60 [2021-11-06 19:25:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:25:30,529 INFO L470 AbstractCegarLoop]: Abstraction has 53639 states and 77148 transitions. [2021-11-06 19:25:30,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-06 19:25:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 53639 states and 77148 transitions. [2021-11-06 19:25:30,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 19:25:30,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:25:30,539 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:25:30,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:25:30,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 19:25:30,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:25:30,541 INFO L85 PathProgramCache]: Analyzing trace with hash -139463121, now seen corresponding path program 1 times [2021-11-06 19:25:30,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:25:30,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414354325] [2021-11-06 19:25:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:25:30,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:25:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:25:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 19:25:31,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:25:31,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414354325] [2021-11-06 19:25:31,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414354325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:25:31,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:25:31,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:25:31,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287139078] [2021-11-06 19:25:31,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:25:31,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:25:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:25:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:25:31,031 INFO L87 Difference]: Start difference. First operand 53639 states and 77148 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) Killed by 15