./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:04:39,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:04:39,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:04:39,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:04:39,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:04:39,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:04:39,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:04:39,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:04:39,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:04:39,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:04:39,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:04:39,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:04:39,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:04:39,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:04:39,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:04:39,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:04:39,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:04:39,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:04:39,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:04:39,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:04:39,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:04:39,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:04:39,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:04:39,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:04:39,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:04:39,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:04:39,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:04:39,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:04:39,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:04:39,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:04:39,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:04:39,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:04:39,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:04:39,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:04:39,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:04:39,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:04:39,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:04:39,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:04:39,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:04:39,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:04:39,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:04:39,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Default.epf [2021-11-23 15:04:39,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:04:39,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:04:39,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:04:39,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:04:39,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:04:39,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:04:39,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:04:39,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:04:39,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:04:39,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:04:39,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:04:39,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:04:39,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:04:39,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:04:39,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:04:39,959 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:04:39,959 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:04:39,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:04:39,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:04:39,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:04:39,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:04:39,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:04:39,960 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:04:39,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:04:39,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:04:39,961 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2021-11-23 15:04:40,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:04:40,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:04:40,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:04:40,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:04:40,338 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:04:40,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-11-23 15:04:40,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/3569ce849/9d27af3b6ded41bbbe5fc51c2c92609b/FLAG5b1a64d70 [2021-11-23 15:04:41,459 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:04:41,460 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-11-23 15:04:41,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/3569ce849/9d27af3b6ded41bbbe5fc51c2c92609b/FLAG5b1a64d70 [2021-11-23 15:04:41,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/3569ce849/9d27af3b6ded41bbbe5fc51c2c92609b [2021-11-23 15:04:41,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:04:41,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:04:41,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:04:41,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:04:41,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:04:41,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:41" (1/1) ... [2021-11-23 15:04:41,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6775f52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:41, skipping insertion in model container [2021-11-23 15:04:41,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:41" (1/1) ... [2021-11-23 15:04:41,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:04:42,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:04:45,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-11-23 15:04:45,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-11-23 15:04:45,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:04:45,777 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:04:46,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-11-23 15:04:46,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-11-23 15:04:46,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:04:46,538 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:04:46,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46 WrapperNode [2021-11-23 15:04:46,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:04:46,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:04:46,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:04:46,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:04:46,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:46,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:46,884 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 4937 [2021-11-23 15:04:46,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:04:46,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:04:46,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:04:46,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:04:46,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:46,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:46,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:46,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:47,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:47,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:47,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:47,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:04:47,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:04:47,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:04:47,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:04:47,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:46" (1/1) ... [2021-11-23 15:04:47,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:04:47,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:04:47,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:04:47,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:04:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-11-23 15:04:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-11-23 15:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 15:04:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 15:04:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 15:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 15:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 15:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 15:04:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-11-23 15:04:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-11-23 15:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-11-23 15:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-11-23 15:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 15:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 15:04:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2021-11-23 15:04:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2021-11-23 15:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 15:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 15:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-11-23 15:04:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-11-23 15:04:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-11-23 15:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-11-23 15:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-11-23 15:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-11-23 15:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-23 15:04:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-23 15:04:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-11-23 15:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-11-23 15:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 15:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 15:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-11-23 15:04:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-11-23 15:04:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-11-23 15:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-11-23 15:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 15:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 15:04:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 15:04:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 15:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 15:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 15:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-11-23 15:04:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-11-23 15:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:04:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 15:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 15:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-23 15:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-23 15:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-11-23 15:04:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-11-23 15:04:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 15:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 15:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 15:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-11-23 15:04:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-11-23 15:04:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-23 15:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-23 15:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 15:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 15:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 15:04:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 15:04:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 15:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 15:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 15:04:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-11-23 15:04:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-11-23 15:04:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 15:04:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 15:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 15:04:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 15:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 15:04:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 15:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2021-11-23 15:04:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2021-11-23 15:04:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 15:04:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 15:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-11-23 15:04:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-11-23 15:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 15:04:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 15:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-11-23 15:04:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-11-23 15:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-11-23 15:04:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-11-23 15:04:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2021-11-23 15:04:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 15:04:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 15:04:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:04:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 15:04:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 15:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 15:04:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 15:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 15:04:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 15:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-23 15:04:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-23 15:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-11-23 15:04:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-11-23 15:04:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 15:04:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 15:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 15:04:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 15:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 15:04:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 15:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 15:04:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 15:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 15:04:47,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 15:04:47,318 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-11-23 15:04:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:04:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 15:04:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 15:04:47,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 15:04:47,319 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-11-23 15:04:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-11-23 15:04:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 15:04:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 15:04:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-11-23 15:04:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-11-23 15:04:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 15:04:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 15:04:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 15:04:47,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 15:04:47,320 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-23 15:04:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-23 15:04:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-23 15:04:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-23 15:04:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 15:04:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 15:04:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 15:04:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 15:04:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 15:04:47,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 15:04:47,321 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-11-23 15:04:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-11-23 15:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-23 15:04:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-23 15:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-11-23 15:04:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-11-23 15:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-11-23 15:04:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-11-23 15:04:47,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-11-23 15:04:47,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-11-23 15:04:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-11-23 15:04:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2021-11-23 15:04:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 15:04:47,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:04:47,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 15:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-11-23 15:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-11-23 15:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 15:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 15:04:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-23 15:04:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-23 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-11-23 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-11-23 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2021-11-23 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2021-11-23 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-11-23 15:04:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-11-23 15:04:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-23 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-23 15:04:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-23 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-23 15:04:47,328 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 15:04:47,328 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-23 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-23 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-11-23 15:04:47,329 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-11-23 15:04:47,329 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 15:04:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 15:04:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-11-23 15:04:47,330 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-11-23 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:04:47,330 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-11-23 15:04:47,331 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-11-23 15:04:47,331 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 15:04:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2021-11-23 15:04:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2021-11-23 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-11-23 15:04:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-11-23 15:04:47,332 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 15:04:47,332 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-23 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-23 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2021-11-23 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2021-11-23 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2021-11-23 15:04:47,333 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2021-11-23 15:04:47,333 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-23 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-23 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 15:04:47,334 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2021-11-23 15:04:47,334 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2021-11-23 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2021-11-23 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2021-11-23 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 15:04:47,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 15:04:47,335 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-23 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-23 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-11-23 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-11-23 15:04:47,336 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-11-23 15:04:47,336 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-11-23 15:04:48,180 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:04:48,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:04:48,328 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:04:48,336 INFO L158 Benchmark]: Toolchain (without parser) took 6570.64ms. Allocated memory was 107.0MB in the beginning and 283.1MB in the end (delta: 176.2MB). Free memory was 74.9MB in the beginning and 151.7MB in the end (delta: -76.7MB). Peak memory consumption was 147.8MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,337 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 50.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,338 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4771.97ms. Allocated memory was 107.0MB in the beginning and 283.1MB in the end (delta: 176.2MB). Free memory was 74.7MB in the beginning and 194.8MB in the end (delta: -120.1MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 344.62ms. Allocated memory is still 283.1MB. Free memory was 194.8MB in the beginning and 164.4MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,354 INFO L158 Benchmark]: Boogie Preprocessor took 269.27ms. Allocated memory is still 283.1MB. Free memory was 164.4MB in the beginning and 134.0MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,355 INFO L158 Benchmark]: RCFGBuilder took 1178.16ms. Allocated memory is still 283.1MB. Free memory was 134.0MB in the beginning and 151.7MB in the end (delta: -17.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2021-11-23 15:04:48,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 58.4MB in the end (delta: 50.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4771.97ms. Allocated memory was 107.0MB in the beginning and 283.1MB in the end (delta: 176.2MB). Free memory was 74.7MB in the beginning and 194.8MB in the end (delta: -120.1MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 344.62ms. Allocated memory is still 283.1MB. Free memory was 194.8MB in the beginning and 164.4MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 269.27ms. Allocated memory is still 283.1MB. Free memory was 164.4MB in the beginning and 134.0MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1178.16ms. Allocated memory is still 283.1MB. Free memory was 134.0MB in the beginning and 151.7MB in the end (delta: -17.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:04:48,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:04:50,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:04:50,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:04:50,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:04:50,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:04:50,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:04:50,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:04:50,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:04:50,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:04:50,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:04:50,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:04:50,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:04:50,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:04:50,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:04:50,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:04:50,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:04:50,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:04:50,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:04:50,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:04:50,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:04:50,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:04:50,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:04:50,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:04:50,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:04:50,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:04:50,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:04:50,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:04:50,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:04:50,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:04:50,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:04:50,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:04:50,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:04:50,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:04:50,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:04:50,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:04:50,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:04:50,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:04:50,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:04:50,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:04:50,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:04:50,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:04:50,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2021-11-23 15:04:51,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:04:51,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:04:51,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:04:51,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:04:51,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:04:51,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:04:51,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:04:51,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:04:51,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:04:51,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:04:51,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:04:51,035 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:04:51,035 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:04:51,035 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:04:51,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:04:51,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:04:51,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:04:51,036 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:04:51,036 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:04:51,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:04:51,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:04:51,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:04:51,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:04:51,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:04:51,038 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:04:51,038 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:04:51,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:04:51,038 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:04:51,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:04:51,039 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2021-11-23 15:04:51,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:04:51,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:04:51,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:04:51,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:04:51,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:04:51,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-11-23 15:04:51,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/150e2de9f/b4aacf64b08e4e5f9af7597efe389a53/FLAG5be29bb4f [2021-11-23 15:04:52,689 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:04:52,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-11-23 15:04:52,771 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/150e2de9f/b4aacf64b08e4e5f9af7597efe389a53/FLAG5be29bb4f [2021-11-23 15:04:52,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/data/150e2de9f/b4aacf64b08e4e5f9af7597efe389a53 [2021-11-23 15:04:52,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:04:52,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:04:52,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:04:52,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:04:52,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:04:52,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:52" (1/1) ... [2021-11-23 15:04:52,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc31df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:52, skipping insertion in model container [2021-11-23 15:04:52,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:04:52" (1/1) ... [2021-11-23 15:04:52,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:04:53,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:04:57,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-11-23 15:04:57,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-11-23 15:04:57,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:04:57,435 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 15:04:57,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:04:58,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-11-23 15:04:58,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-11-23 15:04:58,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:04:58,114 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:04:58,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-11-23 15:04:58,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-11-23 15:04:58,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:04:58,978 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:04:58,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58 WrapperNode [2021-11-23 15:04:58,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:04:58,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:04:58,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:04:58,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:04:58,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,344 INFO L137 Inliner]: procedures = 560, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 4762 [2021-11-23 15:04:59,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:04:59,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:04:59,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:04:59,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:04:59,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:04:59,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:04:59,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:04:59,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:04:59,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:04:58" (1/1) ... [2021-11-23 15:04:59,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:04:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:04:59,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:04:59,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:04:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-11-23 15:04:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-11-23 15:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 15:04:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 15:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-23 15:04:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-23 15:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-23 15:04:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-23 15:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 15:04:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 15:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-11-23 15:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-11-23 15:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-11-23 15:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-11-23 15:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 15:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 15:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2021-11-23 15:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2021-11-23 15:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 15:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 15:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-11-23 15:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-11-23 15:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-11-23 15:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-11-23 15:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-11-23 15:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-11-23 15:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-11-23 15:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-11-23 15:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-11-23 15:04:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-11-23 15:04:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 15:04:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 15:04:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-11-23 15:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-11-23 15:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-11-23 15:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-11-23 15:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 15:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 15:04:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 15:04:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 15:04:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 15:04:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 15:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-11-23 15:04:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-11-23 15:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-23 15:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 15:04:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 15:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-11-23 15:04:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-11-23 15:04:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-11-23 15:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-11-23 15:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 15:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 15:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-11-23 15:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-11-23 15:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-23 15:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-23 15:04:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 15:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 15:04:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 15:04:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 15:04:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 15:04:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 15:04:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-11-23 15:04:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-11-23 15:04:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 15:04:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 15:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 15:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 15:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 15:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 15:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2021-11-23 15:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2021-11-23 15:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 15:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 15:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-11-23 15:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-11-23 15:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 15:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 15:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-11-23 15:04:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-11-23 15:04:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-11-23 15:04:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-11-23 15:04:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2021-11-23 15:04:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2021-11-23 15:04:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-23 15:04:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-23 15:04:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:04:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:04:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 15:04:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 15:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-23 15:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-23 15:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-23 15:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 15:04:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 15:04:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 15:04:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 15:04:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 15:04:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 15:04:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-23 15:04:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-23 15:04:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-11-23 15:04:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-11-23 15:04:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 15:04:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 15:04:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 15:04:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 15:04:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 15:04:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 15:04:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 15:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 15:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 15:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 15:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-23 15:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-11-23 15:04:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-11-23 15:04:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:04:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:04:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 15:04:59,798 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 15:04:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 15:04:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 15:04:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 15:04:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-11-23 15:04:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-11-23 15:04:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 15:04:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 15:04:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-11-23 15:04:59,800 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-11-23 15:04:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 15:04:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 15:04:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 15:04:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 15:04:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-23 15:04:59,801 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-23 15:04:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-11-23 15:04:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-11-23 15:04:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 15:04:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 15:04:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 15:04:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 15:04:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 15:04:59,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 15:04:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-11-23 15:04:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-11-23 15:04:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-23 15:04:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-23 15:04:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:04:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-11-23 15:04:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-11-23 15:04:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-11-23 15:04:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-11-23 15:04:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-11-23 15:04:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-11-23 15:04:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-11-23 15:04:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-11-23 15:04:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:04:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-11-23 15:04:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-11-23 15:04:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2021-11-23 15:04:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2021-11-23 15:04:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 15:04:59,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:04:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 15:04:59,806 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 15:04:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-11-23 15:04:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-11-23 15:04:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-11-23 15:04:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-11-23 15:04:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 15:04:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 15:04:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 15:04:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 15:04:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-11-23 15:04:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-11-23 15:04:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-11-23 15:04:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-11-23 15:04:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 15:04:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 15:04:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2021-11-23 15:04:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2021-11-23 15:04:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-11-23 15:04:59,809 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-11-23 15:04:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-11-23 15:04:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-11-23 15:04:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-23 15:04:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-23 15:04:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 15:04:59,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 15:04:59,810 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 15:04:59,811 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 15:04:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-23 15:04:59,811 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-23 15:04:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-11-23 15:04:59,811 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-11-23 15:04:59,811 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 15:04:59,811 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 15:04:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 15:04:59,812 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 15:04:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-11-23 15:04:59,812 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-11-23 15:04:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-23 15:04:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 15:04:59,813 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 15:04:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-23 15:04:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-23 15:04:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-23 15:04:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 15:04:59,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 15:04:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-11-23 15:04:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-11-23 15:04:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 15:04:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 15:04:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2021-11-23 15:04:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2021-11-23 15:04:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-11-23 15:04:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-11-23 15:04:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-23 15:04:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-23 15:04:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-11-23 15:04:59,815 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-11-23 15:04:59,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2021-11-23 15:04:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2021-11-23 15:04:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2021-11-23 15:04:59,816 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2021-11-23 15:04:59,816 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 15:04:59,817 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 15:04:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-23 15:04:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-23 15:04:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 15:04:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 15:04:59,821 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2021-11-23 15:04:59,821 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2021-11-23 15:04:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2021-11-23 15:04:59,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2021-11-23 15:04:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 15:04:59,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 15:04:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 15:04:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 15:04:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-23 15:04:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-23 15:04:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-11-23 15:04:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-11-23 15:04:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-11-23 15:04:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-11-23 15:05:00,826 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:00,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:00,970 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:05:00,974 INFO L158 Benchmark]: Toolchain (without parser) took 8005.51ms. Allocated memory was 65.0MB in the beginning and 312.5MB in the end (delta: 247.5MB). Free memory was 37.2MB in the beginning and 196.2MB in the end (delta: -159.0MB). Peak memory consumption was 170.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:00,975 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:00,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6009.75ms. Allocated memory was 65.0MB in the beginning and 312.5MB in the end (delta: 247.5MB). Free memory was 37.0MB in the beginning and 225.3MB in the end (delta: -188.2MB). Peak memory consumption was 138.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:00,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 364.75ms. Allocated memory is still 312.5MB. Free memory was 225.3MB in the beginning and 196.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-23 15:05:00,976 INFO L158 Benchmark]: Boogie Preprocessor took 322.24ms. Allocated memory is still 312.5MB. Free memory was 196.9MB in the beginning and 165.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:00,977 INFO L158 Benchmark]: RCFGBuilder took 1303.27ms. Allocated memory is still 312.5MB. Free memory was 165.5MB in the beginning and 196.2MB in the end (delta: -30.7MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:00,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 48.2MB. Free memory was 29.6MB in the beginning and 29.6MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6009.75ms. Allocated memory was 65.0MB in the beginning and 312.5MB in the end (delta: 247.5MB). Free memory was 37.0MB in the beginning and 225.3MB in the end (delta: -188.2MB). Peak memory consumption was 138.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 364.75ms. Allocated memory is still 312.5MB. Free memory was 225.3MB in the beginning and 196.9MB in the end (delta: 28.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 322.24ms. Allocated memory is still 312.5MB. Free memory was 196.9MB in the beginning and 165.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1303.27ms. Allocated memory is still 312.5MB. Free memory was 165.5MB in the beginning and 196.2MB in the end (delta: -30.7MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:05:01,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83db2efb-3bbb-4ed5-80ed-9d55d8e58a0d/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable