./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:45:11,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:45:11,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:45:11,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:45:11,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:45:11,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:45:11,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:45:11,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:45:11,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:45:11,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:45:11,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:45:11,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:45:11,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:45:11,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:45:11,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:45:11,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:45:11,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:45:11,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:45:11,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:45:11,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:45:11,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:45:11,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:45:11,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:45:11,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:45:11,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:45:11,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:45:11,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:45:11,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:45:11,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:45:11,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:45:11,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:45:11,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:45:11,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:45:11,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:45:11,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:45:11,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:45:11,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:45:11,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:45:11,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:45:11,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:45:11,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:45:11,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:45:11,545 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:45:11,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:45:11,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:45:11,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:45:11,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:45:11,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:45:11,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:45:11,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:45:11,548 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:45:11,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:45:11,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:45:11,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:45:11,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:45:11,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:45:11,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:45:11,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:45:11,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:45:11,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:45:11,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:45:11,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:45:11,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:45:11,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:45:11,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:45:11,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:45:11,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:45:11,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:45:11,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:45:11,556 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:45:11,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:45:11,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:45:11,565 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_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-10-17 10:45:11,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:45:11,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:45:11,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:45:11,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:45:11,937 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:45:11,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-17 10:45:12,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/data/9c5fdb871/2bb403ea878a4148be0acc3586cea020/FLAG23cd7c504 [2022-10-17 10:45:13,126 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:45:13,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-17 10:45:13,188 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/data/9c5fdb871/2bb403ea878a4148be0acc3586cea020/FLAG23cd7c504 [2022-10-17 10:45:13,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/data/9c5fdb871/2bb403ea878a4148be0acc3586cea020 [2022-10-17 10:45:13,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:45:13,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:45:13,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:13,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:45:13,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:45:13,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:13" (1/1) ... [2022-10-17 10:45:13,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a49488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:13, skipping insertion in model container [2022-10-17 10:45:13,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:45:13" (1/1) ... [2022-10-17 10:45:13,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:45:13,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:45:14,485 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-17 10:45:14,500 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-17 10:45:15,315 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_7f772321-cf16-4694-bc31-53f1fef88976/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-17 10:45:16,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:16,969 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:45:17,138 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-17 10:45:17,139 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-17 10:45:17,161 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_7f772321-cf16-4694-bc31-53f1fef88976/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-17 10:45:17,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:45:17,936 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:45:17,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17 WrapperNode [2022-10-17 10:45:17,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:45:17,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:17,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:45:17,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:45:17,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,327 INFO L138 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4723 [2022-10-17 10:45:18,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:45:18,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:45:18,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:45:18,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:45:18,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:45:18,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:45:18,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:45:18,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:45:18,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (1/1) ... [2022-10-17 10:45:18,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:45:18,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:45:18,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:45:18,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f772321-cf16-4694-bc31-53f1fef88976/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:45:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:45:18,914 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-10-17 10:45:18,914 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-10-17 10:45:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:45:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-10-17 10:45:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-10-17 10:45:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:45:18,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:45:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-17 10:45:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-17 10:45:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-10-17 10:45:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-10-17 10:45:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-10-17 10:45:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-10-17 10:45:18,917 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-17 10:45:18,917 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-17 10:45:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-10-17 10:45:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-10-17 10:45:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-17 10:45:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-17 10:45:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 10:45:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 10:45:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:45:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:45:18,919 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-17 10:45:18,919 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-17 10:45:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-10-17 10:45:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-10-17 10:45:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-10-17 10:45:18,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-10-17 10:45:18,920 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-10-17 10:45:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-10-17 10:45:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-10-17 10:45:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-10-17 10:45:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 10:45:18,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 10:45:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-10-17 10:45:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-10-17 10:45:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 10:45:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 10:45:18,923 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-10-17 10:45:18,923 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-10-17 10:45:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 10:45:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 10:45:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:45:18,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:45:18,924 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-10-17 10:45:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-10-17 10:45:18,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:45:18,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:45:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-10-17 10:45:18,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-10-17 10:45:18,926 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-10-17 10:45:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-10-17 10:45:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-10-17 10:45:18,928 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-10-17 10:45:18,928 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-10-17 10:45:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-10-17 10:45:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:45:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:45:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-10-17 10:45:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-10-17 10:45:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-17 10:45:18,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-17 10:45:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-10-17 10:45:18,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-10-17 10:45:18,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:45:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-10-17 10:45:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-10-17 10:45:18,932 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-10-17 10:45:18,932 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-10-17 10:45:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-10-17 10:45:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-10-17 10:45:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-17 10:45:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-17 10:45:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-10-17 10:45:18,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-10-17 10:45:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:45:18,933 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-17 10:45:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-17 10:45:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 10:45:18,934 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 10:45:18,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-17 10:45:18,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-17 10:45:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-17 10:45:18,935 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-10-17 10:45:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-10-17 10:45:18,936 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-10-17 10:45:18,936 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-10-17 10:45:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:45:18,937 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:45:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:45:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-17 10:45:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-17 10:45:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:45:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-10-17 10:45:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-10-17 10:45:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-10-17 10:45:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-10-17 10:45:18,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-17 10:45:18,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-17 10:45:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-10-17 10:45:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-10-17 10:45:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-10-17 10:45:18,940 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-10-17 10:45:18,940 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-10-17 10:45:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-10-17 10:45:18,941 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:45:18,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:45:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:45:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:45:18,942 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-17 10:45:18,942 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-17 10:45:18,943 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-17 10:45:18,944 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-17 10:45:18,947 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-10-17 10:45:18,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-10-17 10:45:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:45:18,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:45:18,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:45:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-17 10:45:18,951 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-17 10:45:18,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-10-17 10:45:18,952 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-10-17 10:45:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-17 10:45:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-17 10:45:18,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 10:45:18,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 10:45:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:45:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:45:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:45:18,958 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-10-17 10:45:18,958 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-10-17 10:45:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-10-17 10:45:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-10-17 10:45:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-10-17 10:45:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-10-17 10:45:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-10-17 10:45:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-10-17 10:45:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-10-17 10:45:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-10-17 10:45:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:45:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:45:18,960 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:45:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 10:45:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 10:45:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-10-17 10:45:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-10-17 10:45:18,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:45:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:45:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-10-17 10:45:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-10-17 10:45:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-10-17 10:45:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-10-17 10:45:18,962 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-10-17 10:45:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-10-17 10:45:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:45:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:45:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 10:45:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 10:45:18,963 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-10-17 10:45:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-10-17 10:45:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:45:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:45:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-10-17 10:45:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-10-17 10:45:18,964 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-10-17 10:45:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-10-17 10:45:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:45:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-17 10:45:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-17 10:45:18,965 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 10:45:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 10:45:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:45:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:45:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-10-17 10:45:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-10-17 10:45:18,966 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-10-17 10:45:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-10-17 10:45:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-10-17 10:45:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-10-17 10:45:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:45:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 10:45:18,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 10:45:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:45:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 10:45:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 10:45:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-17 10:45:18,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-17 10:45:18,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:45:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-17 10:45:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-17 10:45:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-17 10:45:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-17 10:45:18,969 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 10:45:18,969 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 10:45:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-10-17 10:45:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-10-17 10:45:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-17 10:45:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-17 10:45:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-10-17 10:45:18,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-10-17 10:45:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 10:45:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 10:45:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-10-17 10:45:18,971 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-10-17 10:45:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-10-17 10:45:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-10-17 10:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:45:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-10-17 10:45:18,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-10-17 10:45:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-10-17 10:45:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-10-17 10:45:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:45:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:45:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:45:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-17 10:45:18,973 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-17 10:45:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-17 10:45:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-17 10:45:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-10-17 10:45:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-10-17 10:45:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-10-17 10:45:18,974 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-10-17 10:45:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:45:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:45:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-10-17 10:45:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-10-17 10:45:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-17 10:45:18,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-17 10:45:18,976 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 10:45:18,976 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 10:45:19,900 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:45:19,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:45:21,246 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:45:28,977 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:45:29,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:45:29,013 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:45:29,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:29 BoogieIcfgContainer [2022-10-17 10:45:29,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:45:29,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:45:29,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:45:29,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:45:29,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:45:13" (1/3) ... [2022-10-17 10:45:29,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba1eddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:45:29, skipping insertion in model container [2022-10-17 10:45:29,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:45:17" (2/3) ... [2022-10-17 10:45:29,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba1eddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:45:29, skipping insertion in model container [2022-10-17 10:45:29,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:45:29" (3/3) ... [2022-10-17 10:45:29,039 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-17 10:45:29,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:45:29,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:45:29,220 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:45:29,230 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e329ce9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:45:29,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:45:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 1624 states, 1148 states have (on average 1.318815331010453) internal successors, (1514), 1178 states have internal predecessors, (1514), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-10-17 10:45:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-17 10:45:29,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:45:29,320 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:45:29,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:45:29,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:45:29,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1904983006, now seen corresponding path program 1 times [2022-10-17 10:45:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:45:29,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514259939] [2022-10-17 10:45:29,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:45:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:45:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:45:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:45:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:45:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:45:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:45:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:45:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:45:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:45:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:45:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:45:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-17 10:45:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:45:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-17 10:45:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:45:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:45:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-17 10:45:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:45:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:45:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-17 10:45:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:45:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-17 10:45:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:45:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-10-17 10:45:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 10:45:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:45:31,177 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-10-17 10:45:31,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:45:31,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514259939] [2022-10-17 10:45:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514259939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:45:31,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:45:31,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:45:31,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330520035] [2022-10-17 10:45:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:45:31,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:45:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:45:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:45:31,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:45:31,246 INFO L87 Difference]: Start difference. First operand has 1624 states, 1148 states have (on average 1.318815331010453) internal successors, (1514), 1178 states have internal predecessors, (1514), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 10:45:40,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []