./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.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_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 --- 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 17:17:57,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:17:57,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:17:57,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:17:57,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:17:57,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:17:57,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:17:57,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:17:57,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:17:57,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:17:57,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:17:57,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:17:57,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:17:57,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:17:57,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:17:57,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:17:57,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:17:57,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:17:57,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:17:57,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:17:57,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:17:57,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:17:57,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:17:57,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:17:57,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:17:57,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:17:57,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:17:57,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:17:57,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:17:57,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:17:57,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:17:57,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:17:57,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:17:57,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:17:57,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:17:57,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:17:57,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:17:57,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:17:57,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:17:57,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:17:57,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:17:57,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:17:57,728 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:17:57,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:17:57,729 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:17:57,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:17:57,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:17:57,730 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:17:57,730 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:17:57,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:17:57,731 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:17:57,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:17:57,731 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:17:57,731 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:17:57,731 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:17:57,732 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:17:57,732 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:17:57,732 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:17:57,732 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:17:57,733 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:17:57,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:17:57,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:17:57,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:17:57,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:17:57,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:17:57,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:17:57,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:17:57,741 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:17:57,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:17:57,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:17:57,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:17:57,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:17:57,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:17:57,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:17:57,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:17:57,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:17:57,743 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:17:57,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:17:57,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:17:57,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:17:57,743 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_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f816b5cf025191130f4fa3c768ff88e2f73399115a7a3b9220171373d5eeca46 [2022-10-17 17:17:57,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:17:58,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:17:58,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:17:58,041 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:17:58,044 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:17:58,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-10-17 17:17:58,125 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/data/7216fa614/35fab8b1c6e14d73a8a783d8d5f5f064/FLAGf6ad08c5d [2022-10-17 17:17:59,165 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:17:59,166 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-10-17 17:17:59,230 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/data/7216fa614/35fab8b1c6e14d73a8a783d8d5f5f064/FLAGf6ad08c5d [2022-10-17 17:17:59,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/data/7216fa614/35fab8b1c6e14d73a8a783d8d5f5f064 [2022-10-17 17:17:59,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:17:59,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:17:59,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:17:59,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:17:59,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:17:59,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:17:59" (1/1) ... [2022-10-17 17:17:59,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f05bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:17:59, skipping insertion in model container [2022-10-17 17:17:59,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:17:59" (1/1) ... [2022-10-17 17:17:59,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:17:59,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:18:03,570 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_b9cba034-6cb6-4ba0-8848-e2495b099d09/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-10-17 17:18:03,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:18:03,705 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:18:04,552 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_b9cba034-6cb6-4ba0-8848-e2495b099d09/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i[397231,397244] [2022-10-17 17:18:04,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:18:04,786 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:18:04,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04 WrapperNode [2022-10-17 17:18:04,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:18:04,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:18:04,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:18:04,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:18:04,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:04,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,174 INFO L138 Inliner]: procedures = 426, calls = 3455, calls flagged for inlining = 207, calls inlined = 116, statements flattened = 4483 [2022-10-17 17:18:05,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:18:05,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:18:05,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:18:05,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:18:05,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:18:05,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:18:05,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:18:05,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:18:05,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (1/1) ... [2022-10-17 17:18:05,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:18:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:18:05,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:18:05,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9cba034-6cb6-4ba0-8848-e2495b099d09/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:18:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-17 17:18:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-10-17 17:18:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-10-17 17:18:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure backend_switch_state [2022-10-17 17:18:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure backend_switch_state [2022-10-17 17:18:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-10-17 17:18:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-10-17 17:18:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:18:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:18:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hotplug_status_watch [2022-10-17 17:18:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hotplug_status_watch [2022-10-17 17:18:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-17 17:18:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-17 17:18:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_unmap_frontend_rings [2022-10-17 17:18:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_unmap_frontend_rings [2022-10-17 17:18:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:18:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:18:05,583 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_xenbus_watch [2022-10-17 17:18:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_xenbus_watch [2022-10-17 17:18:05,583 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_kick_thread [2022-10-17 17:18:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_kick_thread [2022-10-17 17:18:05,583 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 17:18:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 17:18:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_map_ring_valloc [2022-10-17 17:18:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_map_ring_valloc [2022-10-17 17:18:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 17:18:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 17:18:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_rate [2022-10-17 17:18:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_rate [2022-10-17 17:18:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-17 17:18:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-17 17:18:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 17:18:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 17:18:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 17:18:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 17:18:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure netback_uevent [2022-10-17 17:18:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_uevent [2022-10-17 17:18:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:18:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:18:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_carrier_off [2022-10-17 17:18:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_carrier_off [2022-10-17 17:18:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:18:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-10-17 17:18:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-10-17 17:18:05,587 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:18:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:18:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 17:18:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 17:18:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:18:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-17 17:18:05,588 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-17 17:18:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 17:18:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 17:18:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 17:18:05,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 17:18:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:18:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2022-10-17 17:18:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2022-10-17 17:18:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:18:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:18:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:18:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_deinit_queue [2022-10-17 17:18:05,590 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_deinit_queue [2022-10-17 17:18:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-10-17 17:18:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-10-17 17:18:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_to_xenbus_device [2022-10-17 17:18:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_to_xenbus_device [2022-10-17 17:18:05,591 INFO L130 BoogieDeclarations]: Found specification of procedure xen_unregister_watchers [2022-10-17 17:18:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_unregister_watchers [2022-10-17 17:18:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-17 17:18:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-17 17:18:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 17:18:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 17:18:05,592 INFO L130 BoogieDeclarations]: Found specification of procedure frontend_changed [2022-10-17 17:18:05,592 INFO L138 BoogieDeclarations]: Found implementation of procedure frontend_changed [2022-10-17 17:18:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:18:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure set_backend_state [2022-10-17 17:18:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure set_backend_state [2022-10-17 17:18:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:18:05,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:18:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_write_io_ring [2022-10-17 17:18:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_write_io_ring [2022-10-17 17:18:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-17 17:18:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-17 17:18:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-10-17 17:18:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-10-17 17:18:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2022-10-17 17:18:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2022-10-17 17:18:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-17 17:18:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-17 17:18:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:18:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:18:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:18:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:18:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:18:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:18:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:18:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:18:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_disconnect [2022-10-17 17:18:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_disconnect [2022-10-17 17:18:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:18:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:18:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-10-17 17:18:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-10-17 17:18:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_down [2022-10-17 17:18:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_down [2022-10-17 17:18:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-17 17:18:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-17 17:18:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure bind_interdomain_evtchn_to_irqhandler [2022-10-17 17:18:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_interdomain_evtchn_to_irqhandler [2022-10-17 17:18:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-10-17 17:18:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-10-17 17:18:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-10-17 17:18:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-10-17 17:18:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-10-17 17:18:05,600 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-10-17 17:18:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-17 17:18:05,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-17 17:18:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_fix_features [2022-10-17 17:18:05,600 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_fix_features [2022-10-17 17:18:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-10-17 17:18:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-10-17 17:18:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:18:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:18:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:18:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:18:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:18:05,602 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:18:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-10-17 17:18:05,602 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-10-17 17:18:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-17 17:18:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-17 17:18:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_up [2022-10-17 17:18:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_up [2022-10-17 17:18:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure get_jiffies_64 [2022-10-17 17:18:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure get_jiffies_64 [2022-10-17 17:18:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 17:18:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 17:18:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:18:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 17:18:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 17:18:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unmap_ring_vfree [2022-10-17 17:18:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unmap_ring_vfree [2022-10-17 17:18:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:18:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_change_mtu [2022-10-17 17:18:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_change_mtu [2022-10-17 17:18:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-10-17 17:18:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-10-17 17:18:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2022-10-17 17:18:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2022-10-17 17:18:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-17 17:18:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-17 17:18:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:18:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 17:18:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 17:18:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 17:18:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 17:18:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 17:18:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 17:18:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-10-17 17:18:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-10-17 17:18:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 17:18:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 17:18:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure netback_remove [2022-10-17 17:18:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_remove [2022-10-17 17:18:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:18:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:18:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:18:05,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:18:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:18:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:18:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:18:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-10-17 17:18:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-10-17 17:18:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_napi_schedule_or_enable_events [2022-10-17 17:18:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_napi_schedule_or_enable_events [2022-10-17 17:18:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 17:18:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 17:18:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 17:18:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 17:18:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-17 17:18:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-17 17:18:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 17:18:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 17:18:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-17 17:18:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-17 17:18:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-17 17:18:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-17 17:18:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:18:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure xenvif_get_stats [2022-10-17 17:18:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure xenvif_get_stats [2022-10-17 17:18:06,455 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:18:06,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:18:06,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:18:14,833 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:18:16,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:18:16,090 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:18:16,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:18:16 BoogieIcfgContainer [2022-10-17 17:18:16,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:18:16,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:18:16,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:18:16,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:18:16,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:17:59" (1/3) ... [2022-10-17 17:18:16,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1851d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:18:16, skipping insertion in model container [2022-10-17 17:18:16,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:18:04" (2/3) ... [2022-10-17 17:18:16,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f1851d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:18:16, skipping insertion in model container [2022-10-17 17:18:16,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:18:16" (3/3) ... [2022-10-17 17:18:16,108 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--xen-netback--xen-netback.ko-entry_point.cil.out.i [2022-10-17 17:18:16,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:18:16,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:18:16,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:18:16,264 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=FINITE_AUTOMATA, 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;@5c18304f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:18:16,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:18:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 1004 states, 645 states have (on average 1.3457364341085272) internal successors, (868), 671 states have internal predecessors, (868), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) [2022-10-17 17:18:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 17:18:16,291 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:18:16,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:18:16,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:18:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:18:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash -978366816, now seen corresponding path program 1 times [2022-10-17 17:18:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:18:16,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107233156] [2022-10-17 17:18:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:18:16,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:18:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:18:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:18:17,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:18:17,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107233156] [2022-10-17 17:18:17,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107233156] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:18:17,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:18:17,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 17:18:17,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221690346] [2022-10-17 17:18:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:18:17,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:18:17,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:18:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:18:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:18:17,190 INFO L87 Difference]: Start difference. First operand has 1004 states, 645 states have (on average 1.3457364341085272) internal successors, (868), 671 states have internal predecessors, (868), 271 states have call successors, (271), 87 states have call predecessors, (271), 86 states have return successors, (265), 258 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:18:20,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 17:18:23,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-17 17:18:23,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:18:23,429 INFO L93 Difference]: Finished difference Result 3004 states and 4240 transitions. [2022-10-17 17:18:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:18:23,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-17 17:18:23,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:18:23,461 INFO L225 Difference]: With dead ends: 3004 [2022-10-17 17:18:23,461 INFO L226 Difference]: Without dead ends: 1958 [2022-10-17 17:18:23,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:18:23,480 INFO L413 NwaCegarLoop]: 1682 mSDtfsCounter, 1380 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-10-17 17:18:23,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 2919 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-10-17 17:18:23,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2022-10-17 17:18:23,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1952. [2022-10-17 17:18:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1952 states, 1255 states have (on average 1.3219123505976096) internal successors, (1659), 1291 states have internal predecessors, (1659), 526 states have call successors, (526), 171 states have call predecessors, (526), 170 states have return successors, (534), 508 states have call predecessors, (534), 524 states have call successors, (534) [2022-10-17 17:18:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2719 transitions. [2022-10-17 17:18:23,746 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2719 transitions. Word has length 17 [2022-10-17 17:18:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:18:23,746 INFO L495 AbstractCegarLoop]: Abstraction has 1952 states and 2719 transitions. [2022-10-17 17:18:23,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 17:18:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2719 transitions. [2022-10-17 17:18:23,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-17 17:18:23,767 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:18:23,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-10-17 17:18:23,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:18:23,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:18:23,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:18:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash 187308157, now seen corresponding path program 1 times [2022-10-17 17:18:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:18:23,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651102712] [2022-10-17 17:18:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:18:23,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:18:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:18:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-17 17:18:24,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:18:24,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651102712] [2022-10-17 17:18:24,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651102712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:18:24,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:18:24,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:18:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485550284] [2022-10-17 17:18:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:18:24,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:18:24,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:18:24,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:18:24,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:18:24,170 INFO L87 Difference]: Start difference. First operand 1952 states and 2719 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-17 17:18:26,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-17 17:18:28,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []