./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-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 e67e2bc34fcbd2c73471c74297e951ab7d19e1786ef29ca314a337764da3d651 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:17:04,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:17:04,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:17:04,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:17:04,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:17:04,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:17:04,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:17:04,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:17:04,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:17:04,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:17:04,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:17:04,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:17:04,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:17:04,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:17:04,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:17:04,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:17:04,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:17:04,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:17:04,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:17:04,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:17:04,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:17:04,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:17:04,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:17:04,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:17:04,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:17:04,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:17:04,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:17:04,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:17:04,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:17:04,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:17:04,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:17:04,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:17:04,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:17:04,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:17:04,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:17:04,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:17:04,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:17:04,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:17:04,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:17:04,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:17:04,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:17:04,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:17:05,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:17:05,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:17:05,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:17:05,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:17:05,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:17:05,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:17:05,009 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:17:05,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:17:05,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:17:05,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:17:05,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:17:05,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:17:05,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:17:05,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:17:05,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:17:05,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:17:05,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:17:05,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:17:05,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:17:05,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:17:05,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:17:05,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:17:05,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:17:05,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:17:05,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e67e2bc34fcbd2c73471c74297e951ab7d19e1786ef29ca314a337764da3d651 [2021-11-04 10:17:05,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:17:05,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:17:05,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:17:05,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:17:05,219 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:17:05,220 INFO L432 ainManager$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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 10:17:05,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0bfcc29/d9d5c345829348f2b3bdc51731ec34e6/FLAGa8e73e190 [2021-11-04 10:17:06,021 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:17:06,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 10:17:06,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0bfcc29/d9d5c345829348f2b3bdc51731ec34e6/FLAGa8e73e190 [2021-11-04 10:17:06,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0bfcc29/d9d5c345829348f2b3bdc51731ec34e6 [2021-11-04 10:17:06,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:17:06,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:17:06,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:17:06,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:17:06,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:17:06,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:17:06" (1/1) ... [2021-11-04 10:17:06,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4785de7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:06, skipping insertion in model container [2021-11-04 10:17:06,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:17:06" (1/1) ... [2021-11-04 10:17:06,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:17:06,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:17:11,967 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[570919,570932] [2021-11-04 10:17:11,970 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571088,571101] [2021-11-04 10:17:11,970 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571255,571268] [2021-11-04 10:17:11,974 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571423,571436] [2021-11-04 10:17:12,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:17:12,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:17:12,525 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[570919,570932] [2021-11-04 10:17:12,526 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571088,571101] [2021-11-04 10:17:12,527 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571255,571268] [2021-11-04 10:17:12,527 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-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i[571423,571436] [2021-11-04 10:17:12,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:17:12,811 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:17:12,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12 WrapperNode [2021-11-04 10:17:12,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:17:12,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:17:12,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:17:12,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:17:12,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:12,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:15,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:17:15,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:17:15,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:17:15,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:17:15,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:15,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:16,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:16,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:18,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:18,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:18,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:19,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:17:19,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:17:19,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:17:19,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:17:19,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (1/1) ... [2021-11-04 10:17:19,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:17:19,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:17:19,039 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) [2021-11-04 10:17:19,046 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 [2021-11-04 10:17:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_open [2021-11-04 10:17:19,074 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_open [2021-11-04 10:17:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 10:17:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure enic_probe [2021-11-04 10:17:19,074 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_probe [2021-11-04 10:17:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_preassociate_rr [2021-11-04 10:17:19,074 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_preassociate_rr [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:17:19,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:17:19,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:17:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure vnic_rq_fill [2021-11-04 10:17:19,076 INFO L138 BoogieDeclarations]: Found implementation of procedure vnic_rq_fill [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:17:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 10:17:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure enic_dev_wait [2021-11-04 10:17:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_dev_wait [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure enic_open [2021-11-04 10:17:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_open [2021-11-04 10:17:19,077 INFO L130 BoogieDeclarations]: Found specification of procedure enic_pp_associate [2021-11-04 10:17:19,078 INFO L138 BoogieDeclarations]: Found implementation of procedure enic_pp_associate [2021-11-04 10:17:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:17:19,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 10:17:19,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:30:30,662 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:30:30,662 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:30:30,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:30:30,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:30:30,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:30:30,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:30:30,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:30:30,970 INFO L299 CfgBuilder]: Removed 22144 assume(true) statements. [2021-11-04 10:30:30,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:30:30 BoogieIcfgContainer [2021-11-04 10:30:30,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:30:30,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:30:30,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:30:30,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:30:30,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:17:06" (1/3) ... [2021-11-04 10:30:30,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f00bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:30:30, skipping insertion in model container [2021-11-04 10:30:30,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:17:12" (2/3) ... [2021-11-04 10:30:30,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f00bbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:30:30, skipping insertion in model container [2021-11-04 10:30:30,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:30:30" (3/3) ... [2021-11-04 10:30:30,997 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-cisco-enic-enic.cil.i [2021-11-04 10:30:31,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:30:31,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 239 error locations. [2021-11-04 10:30:31,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:30:31,100 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 [2021-11-04 10:30:31,100 INFO L340 AbstractCegarLoop]: Starting to check reachability of 239 error locations. [2021-11-04 10:30:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 28984 states, 28710 states have (on average 1.4477533960292581) internal successors, (41565), 28948 states have internal predecessors, (41565), 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) [2021-11-04 10:30:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 10:30:31,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:31,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:31,358 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [enic_openErr0ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr1ASSERT_VIOLATIONERROR_FUNCTION, enic_openErr2ASSERT_VIOLATIONERROR_FUNCTION (and 236 more)] === [2021-11-04 10:30:31,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:31,361 INFO L85 PathProgramCache]: Analyzing trace with hash -951489560, now seen corresponding path program 1 times [2021-11-04 10:30:31,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:31,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799838904] [2021-11-04 10:30:31,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:31,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:30:32,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:32,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799838904] [2021-11-04 10:30:32,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799838904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:32,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:32,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:32,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246592245] [2021-11-04 10:30:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:32,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:30:32,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:32,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:30:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:32,415 INFO L87 Difference]: Start difference. First operand has 28984 states, 28710 states have (on average 1.4477533960292581) internal successors, (41565), 28948 states have internal predecessors, (41565), 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) [2021-11-04 10:30:34,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15