./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW --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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- 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-4e7fbc6 [2022-11-23 15:08:08,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:08:08,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:08:09,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:08:09,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:08:09,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:08:09,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:08:09,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:08:09,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:08:09,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:08:09,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:08:09,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:08:09,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:08:09,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:08:09,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:08:09,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:08:09,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:08:09,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:08:09,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:08:09,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:08:09,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:08:09,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:08:09,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:08:09,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:08:09,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:08:09,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:08:09,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:08:09,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:08:09,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:08:09,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:08:09,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:08:09,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:08:09,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:08:09,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:08:09,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:08:09,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:08:09,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:08:09,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:08:09,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:08:09,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:08:09,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:08:09,108 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:08:09,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:08:09,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:08:09,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:08:09,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:08:09,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:08:09,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:08:09,156 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:08:09,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:08:09,157 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:08:09,157 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:08:09,158 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:08:09,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:08:09,159 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:08:09,159 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:08:09,160 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:08:09,160 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:08:09,160 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:08:09,160 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:08:09,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:08:09,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:08:09,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:08:09,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:08:09,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:08:09,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:08:09,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:08:09,163 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:08:09,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:08:09,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:08:09,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:08:09,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:08:09,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:08:09,165 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:08:09,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:08:09,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:08:09,166 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:08:09,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:08:09,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:08:09,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:08:09,167 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_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2022-11-23 15:08:09,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:08:09,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:08:09,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:08:09,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:08:09,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:08:09,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-23 15:08:12,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:08:13,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:08:13,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-23 15:08:13,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/data/77e610b51/9a2f53d8a0ca496c96e8613d90006306/FLAG4e9416715 [2022-11-23 15:08:13,621 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/data/77e610b51/9a2f53d8a0ca496c96e8613d90006306 [2022-11-23 15:08:13,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:08:13,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:08:13,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:08:13,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:08:13,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:08:13,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:13" (1/1) ... [2022-11-23 15:08:13,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca54834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:13, skipping insertion in model container [2022-11-23 15:08:13,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:13" (1/1) ... [2022-11-23 15:08:13,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:08:13,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:08:19,290 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-23 15:08:19,299 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-23 15:08:19,300 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-23 15:08:19,300 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-23 15:08:19,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:08:19,468 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:08:20,059 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-23 15:08:20,060 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-23 15:08:20,060 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-23 15:08:20,061 WARN L237 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_facc11be-0ca1-424a-8298-d652b2cfd163/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-23 15:08:20,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:08:20,510 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:08:20,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20 WrapperNode [2022-11-23 15:08:20,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:08:20,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:08:20,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:08:20,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:08:20,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:20,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,139 INFO L138 Inliner]: procedures = 663, calls = 4690, calls flagged for inlining = 358, calls inlined = 345, statements flattened = 10418 [2022-11-23 15:08:21,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:08:21,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:08:21,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:08:21,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:08:21,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,739 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:08:21,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:08:21,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:08:21,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:08:21,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (1/1) ... [2022-11-23 15:08:21,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:08:21,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:08:21,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:08:21,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_facc11be-0ca1-424a-8298-d652b2cfd163/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:08:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:08:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:08:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-23 15:08:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-23 15:08:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-23 15:08:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-23 15:08:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 15:08:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 15:08:21,918 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-23 15:08:21,918 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-23 15:08:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:08:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:08:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-23 15:08:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-23 15:08:21,919 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-23 15:08:21,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-23 15:08:21,920 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-23 15:08:21,920 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-23 15:08:21,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-23 15:08:21,921 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-23 15:08:21,922 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-23 15:08:21,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-23 15:08:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:08:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 15:08:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-23 15:08:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-23 15:08:21,923 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 15:08:21,923 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 15:08:21,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-23 15:08:21,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-23 15:08:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-23 15:08:21,925 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-23 15:08:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-23 15:08:21,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-23 15:08:21,925 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-23 15:08:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-23 15:08:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 15:08:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 15:08:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:08:21,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 15:08:21,926 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:08:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:08:21,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 15:08:21,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 15:08:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-23 15:08:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-23 15:08:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 15:08:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 15:08:21,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:08:21,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:08:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 15:08:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 15:08:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-23 15:08:21,929 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-23 15:08:21,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:08:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 15:08:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 15:08:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-23 15:08:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-23 15:08:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-23 15:08:21,930 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-23 15:08:21,930 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-23 15:08:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-23 15:08:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-23 15:08:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-23 15:08:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-23 15:08:21,931 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-23 15:08:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-23 15:08:21,932 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-23 15:08:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 15:08:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 15:08:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-23 15:08:21,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-23 15:08:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-23 15:08:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-23 15:08:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-23 15:08:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-23 15:08:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-23 15:08:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-23 15:08:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:08:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-23 15:08:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-23 15:08:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 15:08:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 15:08:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:08:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-23 15:08:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-23 15:08:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 15:08:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 15:08:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-23 15:08:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-23 15:08:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-23 15:08:21,938 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-23 15:08:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:08:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:08:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:08:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-23 15:08:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-23 15:08:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:08:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:08:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 15:08:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 15:08:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-23 15:08:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-23 15:08:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 15:08:21,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 15:08:21,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-23 15:08:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-23 15:08:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 15:08:21,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 15:08:21,946 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-23 15:08:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-23 15:08:21,948 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 15:08:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 15:08:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-23 15:08:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-23 15:08:21,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:08:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-23 15:08:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:08:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 15:08:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 15:08:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 15:08:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 15:08:21,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:08:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-23 15:08:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-23 15:08:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-23 15:08:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-23 15:08:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:08:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:08:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:08:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:08:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:08:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:08:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:08:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-23 15:08:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-23 15:08:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-23 15:08:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-23 15:08:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:08:21,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:08:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-23 15:08:21,957 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-23 15:08:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-23 15:08:21,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-23 15:08:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-23 15:08:21,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-23 15:08:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:08:21,959 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:08:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-23 15:08:21,959 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-23 15:08:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 15:08:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 15:08:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-23 15:08:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-23 15:08:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-23 15:08:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-23 15:08:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-23 15:08:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-23 15:08:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-23 15:08:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-23 15:08:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 15:08:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 15:08:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:08:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:08:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-23 15:08:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-23 15:08:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-23 15:08:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-23 15:08:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-23 15:08:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-23 15:08:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:08:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:08:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:08:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:08:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-23 15:08:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-23 15:08:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-23 15:08:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-23 15:08:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-23 15:08:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-23 15:08:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:08:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 15:08:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-23 15:08:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-23 15:08:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-23 15:08:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-23 15:08:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-23 15:08:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-23 15:08:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-23 15:08:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-23 15:08:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 15:08:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 15:08:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-23 15:08:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-23 15:08:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:08:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:08:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-23 15:08:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-23 15:08:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 15:08:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 15:08:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-23 15:08:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-23 15:08:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-23 15:08:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-23 15:08:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-23 15:08:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-23 15:08:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-23 15:08:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-23 15:08:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:08:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:08:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-23 15:08:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-23 15:08:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 15:08:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 15:08:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-23 15:08:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-23 15:08:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-23 15:08:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-23 15:08:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-23 15:08:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-23 15:08:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 15:08:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 15:08:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:08:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:08:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:08:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 15:08:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 15:08:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-23 15:08:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-23 15:08:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:08:21,971 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-23 15:08:21,974 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-23 15:08:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 15:08:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 15:08:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-23 15:08:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-23 15:08:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 15:08:21,975 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 15:08:21,975 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-23 15:08:21,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-23 15:08:21,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:08:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-23 15:08:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-23 15:08:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 15:08:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 15:08:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:08:21,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:08:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 15:08:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 15:08:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 15:08:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 15:08:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-23 15:08:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-23 15:08:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-23 15:08:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-23 15:08:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:08:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:08:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-11-23 15:08:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-11-23 15:08:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-23 15:08:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-23 15:08:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-23 15:08:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-23 15:08:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-23 15:08:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-23 15:08:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-23 15:08:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-23 15:08:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 15:08:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 15:08:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-23 15:08:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-23 15:08:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-23 15:08:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-23 15:08:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:08:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:08:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-23 15:08:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-23 15:08:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 15:08:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 15:08:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-23 15:08:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-23 15:08:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-23 15:08:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-23 15:08:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-23 15:08:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-23 15:08:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-23 15:08:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-23 15:08:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:08:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:08:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_72 [2022-11-23 15:08:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_72 [2022-11-23 15:08:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:08:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-23 15:08:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-23 15:08:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:08:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:08:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-23 15:08:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-23 15:08:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-23 15:08:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-23 15:08:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-23 15:08:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-23 15:08:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-23 15:08:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-23 15:08:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-23 15:08:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-23 15:08:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-23 15:08:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-23 15:08:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 15:08:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 15:08:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-23 15:08:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-23 15:08:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-23 15:08:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-23 15:08:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-23 15:08:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-23 15:08:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-23 15:08:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-23 15:08:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-11-23 15:08:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-11-23 15:08:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-23 15:08:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-23 15:08:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-23 15:08:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-23 15:08:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-23 15:08:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-23 15:08:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-23 15:08:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-23 15:08:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-23 15:08:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-23 15:08:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-23 15:08:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-23 15:08:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 15:08:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 15:08:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 15:08:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 15:08:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-23 15:08:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-23 15:08:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-23 15:08:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-23 15:08:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-23 15:08:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-23 15:08:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 15:08:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 15:08:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:08:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:08:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-23 15:08:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-23 15:08:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:08:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 15:08:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 15:08:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-23 15:08:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-23 15:08:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-23 15:08:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-23 15:08:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-23 15:08:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-23 15:08:23,602 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:08:23,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:08:27,939 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:08:44,368 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 15:08:44,628 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:08:47,714 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:08:47,714 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 15:08:47,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:47 BoogieIcfgContainer [2022-11-23 15:08:47,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:08:47,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:08:47,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:08:47,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:08:47,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:08:13" (1/3) ... [2022-11-23 15:08:47,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:47, skipping insertion in model container [2022-11-23 15:08:47,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:20" (2/3) ... [2022-11-23 15:08:47,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:47, skipping insertion in model container [2022-11-23 15:08:47,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:47" (3/3) ... [2022-11-23 15:08:47,730 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-23 15:08:47,753 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:08:47,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-23 15:08:47,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:08:47,868 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;@408584f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:08:47,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-23 15:08:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-23 15:08:47,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-23 15:08:47,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:47,913 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:08:47,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:08:47,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2072390124, now seen corresponding path program 1 times [2022-11-23 15:08:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:47,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793543763] [2022-11-23 15:08:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 15:08:49,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:49,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793543763] [2022-11-23 15:08:49,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793543763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:49,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:49,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:08:49,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058265064] [2022-11-23 15:08:49,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:49,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:08:49,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:49,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:08:49,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:08:49,450 INFO L87 Difference]: Start difference. First operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 15:08:53,135 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 [] [2022-11-23 15:09:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:02,169 INFO L93 Difference]: Finished difference Result 6808 states and 9907 transitions. [2022-11-23 15:09:02,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:09:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-23 15:09:02,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:02,233 INFO L225 Difference]: With dead ends: 6808 [2022-11-23 15:09:02,233 INFO L226 Difference]: Without dead ends: 4509 [2022-11-23 15:09:02,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:02,256 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 3188 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 6292 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:02,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 6292 Invalid, 1069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1061 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-23 15:09:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-11-23 15:09:02,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4505. [2022-11-23 15:09:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 2703 states have (on average 1.314095449500555) internal successors, (3552), 2832 states have internal predecessors, (3552), 1463 states have call successors, (1463), 337 states have call predecessors, (1463), 336 states have return successors, (1462), 1433 states have call predecessors, (1462), 1459 states have call successors, (1462) [2022-11-23 15:09:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6477 transitions. [2022-11-23 15:09:02,688 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6477 transitions. Word has length 211 [2022-11-23 15:09:02,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:02,694 INFO L495 AbstractCegarLoop]: Abstraction has 4505 states and 6477 transitions. [2022-11-23 15:09:02,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 15:09:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6477 transitions. [2022-11-23 15:09:02,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-23 15:09:02,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:02,710 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:09:02,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:09:02,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:09:02,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1736847847, now seen corresponding path program 1 times [2022-11-23 15:09:02,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:02,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339738892] [2022-11-23 15:09:02,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 15:09:03,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:03,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339738892] [2022-11-23 15:09:03,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339738892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:03,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:03,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:09:03,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797806214] [2022-11-23 15:09:03,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:03,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:09:03,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:09:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:03,627 INFO L87 Difference]: Start difference. First operand 4505 states and 6477 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-23 15:09:07,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:15,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:09:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:17,049 INFO L93 Difference]: Finished difference Result 13399 states and 19289 transitions. [2022-11-23 15:09:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:09:17,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 215 [2022-11-23 15:09:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:17,130 INFO L225 Difference]: With dead ends: 13399 [2022-11-23 15:09:17,130 INFO L226 Difference]: Without dead ends: 8933 [2022-11-23 15:09:17,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:17,159 INFO L413 NwaCegarLoop]: 3571 mSDtfsCounter, 3234 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:17,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 6349 Invalid, 1066 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1058 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2022-11-23 15:09:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2022-11-23 15:09:17,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8904. [2022-11-23 15:09:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 5358 states have (on average 1.314856289660321) internal successors, (7045), 5618 states have internal predecessors, (7045), 2872 states have call successors, (2872), 672 states have call predecessors, (2872), 671 states have return successors, (2910), 2809 states have call predecessors, (2910), 2868 states have call successors, (2910) [2022-11-23 15:09:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 12827 transitions. [2022-11-23 15:09:17,852 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 12827 transitions. Word has length 215 [2022-11-23 15:09:17,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:17,853 INFO L495 AbstractCegarLoop]: Abstraction has 8904 states and 12827 transitions. [2022-11-23 15:09:17,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-23 15:09:17,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 12827 transitions. [2022-11-23 15:09:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-23 15:09:17,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:17,862 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:09:17,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:09:17,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:09:17,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash 166563184, now seen corresponding path program 1 times [2022-11-23 15:09:17,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:17,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546210217] [2022-11-23 15:09:17,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:17,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:18,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 15:09:18,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:18,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546210217] [2022-11-23 15:09:18,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546210217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:18,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:18,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:09:18,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100500569] [2022-11-23 15:09:18,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:18,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:09:18,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:09:18,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:18,476 INFO L87 Difference]: Start difference. First operand 8904 states and 12827 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:09:24,031 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 [] [2022-11-23 15:09:30,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:30,498 INFO L93 Difference]: Finished difference Result 26386 states and 38029 transitions. [2022-11-23 15:09:30,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:09:30,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 226 [2022-11-23 15:09:30,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:30,628 INFO L225 Difference]: With dead ends: 26386 [2022-11-23 15:09:30,628 INFO L226 Difference]: Without dead ends: 17521 [2022-11-23 15:09:30,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:09:30,691 INFO L413 NwaCegarLoop]: 3631 mSDtfsCounter, 3154 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:30,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 6418 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-23 15:09:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17521 states. [2022-11-23 15:09:31,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17521 to 17474. [2022-11-23 15:09:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17474 states, 10518 states have (on average 1.3138429359193764) internal successors, (13819), 11020 states have internal predecessors, (13819), 5620 states have call successors, (5620), 1334 states have call predecessors, (5620), 1333 states have return successors, (5762), 5491 states have call predecessors, (5762), 5616 states have call successors, (5762) [2022-11-23 15:09:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17474 states to 17474 states and 25201 transitions. [2022-11-23 15:09:31,957 INFO L78 Accepts]: Start accepts. Automaton has 17474 states and 25201 transitions. Word has length 226 [2022-11-23 15:09:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:09:31,959 INFO L495 AbstractCegarLoop]: Abstraction has 17474 states and 25201 transitions. [2022-11-23 15:09:31,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-23 15:09:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 17474 states and 25201 transitions. [2022-11-23 15:09:31,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-23 15:09:31,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:09:31,970 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:09:31,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:09:31,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:09:31,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:09:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash -60410816, now seen corresponding path program 1 times [2022-11-23 15:09:31,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:09:31,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433604787] [2022-11-23 15:09:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:09:31,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:09:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:09:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-23 15:09:33,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:09:33,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433604787] [2022-11-23 15:09:33,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433604787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:09:33,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:09:33,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:09:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933693703] [2022-11-23 15:09:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:09:33,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:09:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:09:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:09:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:09:33,503 INFO L87 Difference]: Start difference. First operand 17474 states and 25201 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:09:37,153 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 [] [2022-11-23 15:09:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:09:58,655 INFO L93 Difference]: Finished difference Result 45478 states and 65139 transitions. [2022-11-23 15:09:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:09:58,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 237 [2022-11-23 15:09:58,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:09:58,845 INFO L225 Difference]: With dead ends: 45478 [2022-11-23 15:09:58,845 INFO L226 Difference]: Without dead ends: 28043 [2022-11-23 15:09:58,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:09:58,960 INFO L413 NwaCegarLoop]: 4048 mSDtfsCounter, 6269 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 5075 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6483 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:09:58,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6483 Valid, 10932 Invalid, 5115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 5075 Invalid, 1 Unknown, 0 Unchecked, 23.5s Time] [2022-11-23 15:09:59,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28043 states. [2022-11-23 15:10:00,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28043 to 27973. [2022-11-23 15:10:00,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27973 states, 16755 states have (on average 1.3087436586093704) internal successors, (21928), 17572 states have internal predecessors, (21928), 8852 states have call successors, (8852), 2362 states have call predecessors, (8852), 2363 states have return successors, (9002), 8664 states have call predecessors, (9002), 8848 states have call successors, (9002) [2022-11-23 15:10:00,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27973 states to 27973 states and 39782 transitions. [2022-11-23 15:10:00,909 INFO L78 Accepts]: Start accepts. Automaton has 27973 states and 39782 transitions. Word has length 237 [2022-11-23 15:10:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:00,910 INFO L495 AbstractCegarLoop]: Abstraction has 27973 states and 39782 transitions. [2022-11-23 15:10:00,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:10:00,910 INFO L276 IsEmpty]: Start isEmpty. Operand 27973 states and 39782 transitions. [2022-11-23 15:10:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-23 15:10:00,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:00,918 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:10:00,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:10:00,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:10:00,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:00,919 INFO L85 PathProgramCache]: Analyzing trace with hash 593475371, now seen corresponding path program 1 times [2022-11-23 15:10:00,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:00,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391201464] [2022-11-23 15:10:00,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:00,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-23 15:10:01,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:01,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391201464] [2022-11-23 15:10:01,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391201464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:01,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:01,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:10:01,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246060733] [2022-11-23 15:10:01,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:01,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:10:01,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:01,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:10:01,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:01,565 INFO L87 Difference]: Start difference. First operand 27973 states and 39782 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 15:10:04,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:11,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:14,676 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 [] [2022-11-23 15:10:16,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:16,185 INFO L93 Difference]: Finished difference Result 65953 states and 92748 transitions. [2022-11-23 15:10:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:10:16,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-11-23 15:10:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:16,399 INFO L225 Difference]: With dead ends: 65953 [2022-11-23 15:10:16,400 INFO L226 Difference]: Without dead ends: 38019 [2022-11-23 15:10:16,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:16,496 INFO L413 NwaCegarLoop]: 3373 mSDtfsCounter, 2499 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 6110 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:16,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 6110 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1099 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-23 15:10:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38019 states. [2022-11-23 15:10:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38019 to 37982. [2022-11-23 15:10:18,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37982 states, 22713 states have (on average 1.287500550345617) internal successors, (29243), 23838 states have internal predecessors, (29243), 11682 states have call successors, (11682), 3585 states have call predecessors, (11682), 3584 states have return successors, (11974), 11372 states have call predecessors, (11974), 11678 states have call successors, (11974) [2022-11-23 15:10:19,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37982 states to 37982 states and 52899 transitions. [2022-11-23 15:10:19,253 INFO L78 Accepts]: Start accepts. Automaton has 37982 states and 52899 transitions. Word has length 237 [2022-11-23 15:10:19,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:19,257 INFO L495 AbstractCegarLoop]: Abstraction has 37982 states and 52899 transitions. [2022-11-23 15:10:19,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-23 15:10:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 37982 states and 52899 transitions. [2022-11-23 15:10:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-23 15:10:19,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:19,265 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2022-11-23 15:10:19,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:10:19,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:10:19,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2116771066, now seen corresponding path program 1 times [2022-11-23 15:10:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:19,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352308355] [2022-11-23 15:10:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:19,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-23 15:10:19,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:19,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352308355] [2022-11-23 15:10:19,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352308355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:19,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:19,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:10:19,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744440318] [2022-11-23 15:10:19,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:19,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:10:19,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:10:19,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:19,741 INFO L87 Difference]: Start difference. First operand 37982 states and 52899 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:10:25,747 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 [] [2022-11-23 15:10:34,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:34,286 INFO L93 Difference]: Finished difference Result 108386 states and 151425 transitions. [2022-11-23 15:10:34,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:10:34,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 244 [2022-11-23 15:10:34,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:34,664 INFO L225 Difference]: With dead ends: 108386 [2022-11-23 15:10:34,664 INFO L226 Difference]: Without dead ends: 70443 [2022-11-23 15:10:34,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:10:34,779 INFO L413 NwaCegarLoop]: 3716 mSDtfsCounter, 3235 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:34,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 6503 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-11-23 15:10:34,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70443 states. [2022-11-23 15:10:38,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70443 to 70370. [2022-11-23 15:10:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70370 states, 42025 states have (on average 1.2907317073170732) internal successors, (54243), 44169 states have internal predecessors, (54243), 21829 states have call successors, (21829), 6522 states have call predecessors, (21829), 6513 states have return successors, (22381), 21192 states have call predecessors, (22381), 21825 states have call successors, (22381) [2022-11-23 15:10:39,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70370 states to 70370 states and 98453 transitions. [2022-11-23 15:10:39,467 INFO L78 Accepts]: Start accepts. Automaton has 70370 states and 98453 transitions. Word has length 244 [2022-11-23 15:10:39,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:10:39,468 INFO L495 AbstractCegarLoop]: Abstraction has 70370 states and 98453 transitions. [2022-11-23 15:10:39,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 15:10:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 70370 states and 98453 transitions. [2022-11-23 15:10:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-23 15:10:39,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:10:39,475 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:10:39,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:10:39,475 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:10:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:10:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1689076926, now seen corresponding path program 1 times [2022-11-23 15:10:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:10:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428867878] [2022-11-23 15:10:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:10:39,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:10:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:10:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-23 15:10:40,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:10:40,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428867878] [2022-11-23 15:10:40,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428867878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:10:40,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:10:40,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:10:40,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927262794] [2022-11-23 15:10:40,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:10:40,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:10:40,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:10:40,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:10:40,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:10:40,870 INFO L87 Difference]: Start difference. First operand 70370 states and 98453 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:10:45,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:54,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:10:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:10:56,296 INFO L93 Difference]: Finished difference Result 70462 states and 98555 transitions. [2022-11-23 15:10:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:10:56,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-11-23 15:10:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:10:56,641 INFO L225 Difference]: With dead ends: 70462 [2022-11-23 15:10:56,641 INFO L226 Difference]: Without dead ends: 70460 [2022-11-23 15:10:56,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:10:56,681 INFO L413 NwaCegarLoop]: 2796 mSDtfsCounter, 3242 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:10:56,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 8411 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2022-11-23 15:10:56,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70460 states. [2022-11-23 15:11:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70460 to 70458. [2022-11-23 15:11:00,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70458 states, 42076 states have (on average 1.2905694457648065) internal successors, (54302), 44222 states have internal predecessors, (54302), 21847 states have call successors, (21847), 6539 states have call predecessors, (21847), 6532 states have return successors, (22403), 21210 states have call predecessors, (22403), 21843 states have call successors, (22403) [2022-11-23 15:11:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70458 states to 70458 states and 98552 transitions. [2022-11-23 15:11:01,217 INFO L78 Accepts]: Start accepts. Automaton has 70458 states and 98552 transitions. Word has length 253 [2022-11-23 15:11:01,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:01,220 INFO L495 AbstractCegarLoop]: Abstraction has 70458 states and 98552 transitions. [2022-11-23 15:11:01,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-23 15:11:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 70458 states and 98552 transitions. [2022-11-23 15:11:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-23 15:11:01,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:01,227 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 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, 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] [2022-11-23 15:11:01,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:11:01,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:11:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:01,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1282616662, now seen corresponding path program 1 times [2022-11-23 15:11:01,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:01,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651934589] [2022-11-23 15:11:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:02,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-23 15:11:02,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651934589] [2022-11-23 15:11:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651934589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:02,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:02,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:11:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067637258] [2022-11-23 15:11:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:02,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:11:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:11:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:02,602 INFO L87 Difference]: Start difference. First operand 70458 states and 98552 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-23 15:11:08,382 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 [] [2022-11-23 15:11:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:18,326 INFO L93 Difference]: Finished difference Result 70466 states and 98558 transitions. [2022-11-23 15:11:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:11:18,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 258 [2022-11-23 15:11:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:18,701 INFO L225 Difference]: With dead ends: 70466 [2022-11-23 15:11:18,701 INFO L226 Difference]: Without dead ends: 70464 [2022-11-23 15:11:18,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:11:18,738 INFO L413 NwaCegarLoop]: 2799 mSDtfsCounter, 3237 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 8414 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:18,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 8414 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2022-11-23 15:11:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70464 states. [2022-11-23 15:11:22,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70464 to 70462. [2022-11-23 15:11:22,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70462 states, 42079 states have (on average 1.290548729770194) internal successors, (54305), 44225 states have internal predecessors, (54305), 21847 states have call successors, (21847), 6540 states have call predecessors, (21847), 6533 states have return successors, (22403), 21210 states have call predecessors, (22403), 21843 states have call successors, (22403) [2022-11-23 15:11:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70462 states to 70462 states and 98555 transitions. [2022-11-23 15:11:23,410 INFO L78 Accepts]: Start accepts. Automaton has 70462 states and 98555 transitions. Word has length 258 [2022-11-23 15:11:23,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:23,411 INFO L495 AbstractCegarLoop]: Abstraction has 70462 states and 98555 transitions. [2022-11-23 15:11:23,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-23 15:11:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 70462 states and 98555 transitions. [2022-11-23 15:11:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-23 15:11:23,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:23,434 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 3, 2, 2, 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, 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] [2022-11-23 15:11:23,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:11:23,435 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-23 15:11:23,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1604057982, now seen corresponding path program 1 times [2022-11-23 15:11:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:23,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724499242] [2022-11-23 15:11:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2022-11-23 15:11:24,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:24,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724499242] [2022-11-23 15:11:24,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724499242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:24,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:24,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:11:24,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801530906] [2022-11-23 15:11:24,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:24,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:11:24,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:11:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:11:24,458 INFO L87 Difference]: Start difference. First operand 70462 states and 98555 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-23 15:11:29,607 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 [] [2022-11-23 15:11:34,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:11:48,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:11:50,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:50,558 INFO L93 Difference]: Finished difference Result 140409 states and 196385 transitions. [2022-11-23 15:11:50,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 15:11:50,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 263 [2022-11-23 15:11:50,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:51,190 INFO L225 Difference]: With dead ends: 140409 [2022-11-23 15:11:51,190 INFO L226 Difference]: Without dead ends: 140407 [2022-11-23 15:11:51,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:11:51,247 INFO L413 NwaCegarLoop]: 4113 mSDtfsCounter, 3208 mSDsluCounter, 10940 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3220 SdHoareTripleChecker+Valid, 15053 SdHoareTripleChecker+Invalid, 2660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:51,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3220 Valid, 15053 Invalid, 2660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2655 Invalid, 3 Unknown, 0 Unchecked, 19.0s Time] [2022-11-23 15:11:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140407 states.