./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI --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 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 --- 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-5e519f3 [2022-11-03 02:46:09,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:46:09,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:46:09,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:46:09,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:46:09,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:46:09,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:46:09,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:46:09,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:46:09,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:46:09,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:46:09,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:46:09,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:46:09,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:46:09,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:46:09,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:46:09,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:46:09,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:46:09,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:46:09,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:46:09,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:46:09,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:46:09,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:46:09,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:46:09,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:46:09,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:46:09,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:46:09,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:46:09,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:46:09,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:46:09,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:46:09,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:46:09,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:46:09,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:46:09,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:46:09,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:46:09,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:46:09,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:46:09,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:46:09,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:46:09,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:46:09,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:46:09,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:46:09,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:46:09,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:46:09,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:46:09,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:46:09,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:46:09,937 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:46:09,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:46:09,937 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:46:09,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:46:09,939 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:46:09,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:46:09,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:46:09,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:46:09,939 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:46:09,940 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:46:09,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:46:09,940 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:46:09,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:46:09,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:46:09,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:46:09,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:46:09,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:46:09,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:46:09,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:46:09,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:46:09,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:46:09,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:46:09,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:46:09,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:46:09,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:46:09,944 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:46:09,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:46:09,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:46:09,945 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:46:09,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:46:09,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:46:09,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:46:09,945 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_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52f53de973aa03e2a9eaadeeb26ce30c3104ed671c54a416d14fc4c2bdab8bd9 [2022-11-03 02:46:10,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:46:10,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:46:10,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:46:10,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:46:10,257 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:46:10,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-03 02:46:10,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/data/2d430f614/d04d4a26659d442d902bb7f0634fa2da/FLAG43d8843d3 [2022-11-03 02:46:11,625 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:46:11,627 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-03 02:46:11,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/data/2d430f614/d04d4a26659d442d902bb7f0634fa2da/FLAG43d8843d3 [2022-11-03 02:46:12,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/data/2d430f614/d04d4a26659d442d902bb7f0634fa2da [2022-11-03 02:46:12,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:46:12,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:46:12,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:46:12,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:46:12,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:46:12,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:46:12" (1/1) ... [2022-11-03 02:46:12,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4e8ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:12, skipping insertion in model container [2022-11-03 02:46:12,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:46:12" (1/1) ... [2022-11-03 02:46:12,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:46:12,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:46:17,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-03 02:46:17,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-03 02:46:17,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-03 02:46:17,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-03 02:46:18,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:46:18,080 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:46:18,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[479863,479876] [2022-11-03 02:46:18,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480032,480045] [2022-11-03 02:46:18,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480199,480212] [2022-11-03 02:46:18,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480367,480380] [2022-11-03 02:46:18,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:46:19,136 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:46:19,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19 WrapperNode [2022-11-03 02:46:19,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:46:19,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:46:19,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:46:19,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:46:19,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:19,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:19,667 INFO L138 Inliner]: procedures = 544, calls = 4122, calls flagged for inlining = 248, calls inlined = 231, statements flattened = 8578 [2022-11-03 02:46:19,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:46:19,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:46:19,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:46:19,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:46:19,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:19,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:19,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:19,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:46:20,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:46:20,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:46:20,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:46:20,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (1/1) ... [2022-11-03 02:46:20,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:46:20,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:46:20,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:46:20,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecce5bd3-dea5-45f7-b96d-dbe8b0d3b75c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:46:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-03 02:46:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-03 02:46:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:46:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:46:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:46:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:46:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:46:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:46:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-03 02:46:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-03 02:46:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-03 02:46:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-03 02:46:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-03 02:46:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-03 02:46:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-03 02:46:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2022-11-03 02:46:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:46:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:46:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-03 02:46:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2022-11-03 02:46:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-03 02:46:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-03 02:46:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-03 02:46:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-03 02:46:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:46:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:46:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-03 02:46:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-03 02:46:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-03 02:46:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-03 02:46:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:46:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:46:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-03 02:46:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-03 02:46:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-03 02:46:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-03 02:46:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-03 02:46:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-03 02:46:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-03 02:46:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-03 02:46:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-03 02:46:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-03 02:46:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 02:46:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 02:46:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:46:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:46:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-03 02:46:20,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-03 02:46:20,863 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-03 02:46:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-03 02:46:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:46:20,864 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:46:20,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:46:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:46:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-03 02:46:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-03 02:46:20,865 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-03 02:46:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:46:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-03 02:46:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-03 02:46:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 02:46:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 02:46:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-03 02:46:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-03 02:46:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-03 02:46:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-03 02:46:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:46:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:46:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:46:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:46:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:46:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-03 02:46:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-03 02:46:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-03 02:46:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-03 02:46:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:46:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:46:20,870 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:46:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:46:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 02:46:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 02:46:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:46:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:46:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:46:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:46:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:46:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:46:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:46:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:46:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:46:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:46:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:46:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:46:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-03 02:46:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-03 02:46:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:46:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:46:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-03 02:46:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-03 02:46:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:46:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:46:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-03 02:46:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-03 02:46:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-03 02:46:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-03 02:46:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:46:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:46:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-03 02:46:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-03 02:46:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-03 02:46:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-03 02:46:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:46:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:46:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:46:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:46:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:46:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-03 02:46:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-03 02:46:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:46:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-03 02:46:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-03 02:46:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:46:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:46:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:46:20,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:46:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:46:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:46:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:46:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-03 02:46:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-03 02:46:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 02:46:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 02:46:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:46:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:46:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-03 02:46:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-03 02:46:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-03 02:46:20,891 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-03 02:46:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-03 02:46:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-03 02:46:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:46:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:46:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-03 02:46:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-03 02:46:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:46:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:46:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-03 02:46:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-03 02:46:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:46:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:46:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 02:46:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 02:46:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-03 02:46:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-03 02:46:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-03 02:46:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-03 02:46:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:46:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:46:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-03 02:46:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-03 02:46:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-03 02:46:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-03 02:46:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-03 02:46:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-03 02:46:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:46:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:46:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:46:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:46:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-03 02:46:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-03 02:46:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:46:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:46:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 02:46:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 02:46:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-03 02:46:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-03 02:46:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-03 02:46:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-03 02:46:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:46:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:46:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-03 02:46:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-03 02:46:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-03 02:46:20,938 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-03 02:46:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-03 02:46:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-03 02:46:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-03 02:46:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-03 02:46:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-03 02:46:20,939 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-03 02:46:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:46:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:46:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-03 02:46:20,940 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-03 02:46:20,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:46:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:46:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-03 02:46:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-03 02:46:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 02:46:20,941 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 02:46:20,941 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-03 02:46:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-03 02:46:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-03 02:46:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-03 02:46:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 02:46:20,942 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 02:46:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2022-11-03 02:46:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2022-11-03 02:46:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:46:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-03 02:46:20,943 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-03 02:46:20,943 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-03 02:46:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-03 02:46:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-03 02:46:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-03 02:46:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-03 02:46:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-03 02:46:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:46:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-03 02:46:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-03 02:46:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-03 02:46:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-03 02:46:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-03 02:46:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-03 02:46:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:46:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 02:46:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 02:46:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-03 02:46:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-03 02:46:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:46:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:46:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-03 02:46:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-03 02:46:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-03 02:46:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-03 02:46:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-03 02:46:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-03 02:46:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:46:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:46:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:46:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:46:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-03 02:46:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-03 02:46:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-03 02:46:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-03 02:46:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:46:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:46:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 02:46:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 02:46:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-03 02:46:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-03 02:46:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-03 02:46:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-03 02:46:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-03 02:46:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-03 02:46:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-03 02:46:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-03 02:46:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 02:46:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 02:46:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:46:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:46:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:46:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:46:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-03 02:46:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-03 02:46:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 02:46:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 02:46:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_73 [2022-11-03 02:46:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_73 [2022-11-03 02:46:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2022-11-03 02:46:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2022-11-03 02:46:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:46:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-03 02:46:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-03 02:46:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:46:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:46:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-03 02:46:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-03 02:46:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:46:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:46:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-03 02:46:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-03 02:46:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-03 02:46:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-03 02:46:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-03 02:46:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-03 02:46:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-03 02:46:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-03 02:46:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-03 02:46:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-03 02:46:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-03 02:46:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-03 02:46:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:46:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:46:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-03 02:46:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-03 02:46:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-03 02:46:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-03 02:46:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-03 02:46:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-03 02:46:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-03 02:46:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-03 02:46:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-03 02:46:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-03 02:46:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-03 02:46:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-03 02:46:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:46:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:46:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-03 02:46:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-03 02:46:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2022-11-03 02:46:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2022-11-03 02:46:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 02:46:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 02:46:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-03 02:46:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-03 02:46:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-03 02:46:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-03 02:46:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-03 02:46:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-03 02:46:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:46:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:46:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:46:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 02:46:22,712 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:46:22,726 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:46:23,434 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:46:55,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:46:56,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:47:00,677 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:47:00,677 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-03 02:47:00,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:00 BoogieIcfgContainer [2022-11-03 02:47:00,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:47:00,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:47:00,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:47:00,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:47:00,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:46:12" (1/3) ... [2022-11-03 02:47:00,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4840f363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:00, skipping insertion in model container [2022-11-03 02:47:00,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:46:19" (2/3) ... [2022-11-03 02:47:00,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4840f363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:47:00, skipping insertion in model container [2022-11-03 02:47:00,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:47:00" (3/3) ... [2022-11-03 02:47:00,700 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2022-11-03 02:47:00,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:47:00,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:47:00,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:47:00,898 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;@3fd88f5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:47:00,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:47:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) [2022-11-03 02:47:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-03 02:47:00,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:00,960 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:00,961 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)] === [2022-11-03 02:47:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:00,971 INFO L85 PathProgramCache]: Analyzing trace with hash -69639802, now seen corresponding path program 1 times [2022-11-03 02:47:00,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:00,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513959958] [2022-11-03 02:47:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:00,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:02,156 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:02,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:02,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513959958] [2022-11-03 02:47:02,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513959958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:02,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:02,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:02,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498454450] [2022-11-03 02:47:02,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:02,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:02,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:02,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:02,230 INFO L87 Difference]: Start difference. First operand has 3050 states, 1915 states have (on average 1.348302872062663) internal successors, (2582), 1977 states have internal predecessors, (2582), 996 states have call successors, (996), 153 states have call predecessors, (996), 152 states have return successors, (989), 975 states have call predecessors, (989), 989 states have call successors, (989) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:04,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:08,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:14,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:14,273 INFO L93 Difference]: Finished difference Result 8932 states and 13718 transitions. [2022-11-03 02:47:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:14,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2022-11-03 02:47:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:14,348 INFO L225 Difference]: With dead ends: 8932 [2022-11-03 02:47:14,348 INFO L226 Difference]: Without dead ends: 5899 [2022-11-03 02:47:14,390 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 [2022-11-03 02:47:14,394 INFO L413 NwaCegarLoop]: 4869 mSDtfsCounter, 4358 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4360 SdHoareTripleChecker+Valid, 8769 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:14,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4360 Valid, 8769 Invalid, 1084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1079 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-11-03 02:47:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2022-11-03 02:47:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5895. [2022-11-03 02:47:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3686 states have (on average 1.3464460119370592) internal successors, (4963), 3778 states have internal predecessors, (4963), 1905 states have call successors, (1905), 302 states have call predecessors, (1905), 301 states have return successors, (1904), 1874 states have call predecessors, (1904), 1902 states have call successors, (1904) [2022-11-03 02:47:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8772 transitions. [2022-11-03 02:47:14,988 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8772 transitions. Word has length 167 [2022-11-03 02:47:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:14,994 INFO L495 AbstractCegarLoop]: Abstraction has 5895 states and 8772 transitions. [2022-11-03 02:47:14,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8772 transitions. [2022-11-03 02:47:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-03 02:47:15,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:15,014 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:15,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:47:15,015 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)] === [2022-11-03 02:47:15,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1259785515, now seen corresponding path program 1 times [2022-11-03 02:47:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:15,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154879352] [2022-11-03 02:47:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:15,840 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:15,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:15,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154879352] [2022-11-03 02:47:15,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154879352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:15,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:15,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954788164] [2022-11-03 02:47:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:15,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:15,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:15,849 INFO L87 Difference]: Start difference. First operand 5895 states and 8772 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:17,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:25,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:25,709 INFO L93 Difference]: Finished difference Result 17335 states and 26112 transitions. [2022-11-03 02:47:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:25,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 173 [2022-11-03 02:47:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:25,825 INFO L225 Difference]: With dead ends: 17335 [2022-11-03 02:47:25,825 INFO L226 Difference]: Without dead ends: 11471 [2022-11-03 02:47:25,884 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 [2022-11-03 02:47:25,886 INFO L413 NwaCegarLoop]: 4931 mSDtfsCounter, 4287 mSDsluCounter, 4475 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:25,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 8882 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-03 02:47:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2022-11-03 02:47:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 11441. [2022-11-03 02:47:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11441 states, 7159 states have (on average 1.3476742561810309) internal successors, (9648), 7347 states have internal predecessors, (9648), 3684 states have call successors, (3684), 600 states have call predecessors, (3684), 595 states have return successors, (4009), 3613 states have call predecessors, (4009), 3681 states have call successors, (4009) [2022-11-03 02:47:26,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 17341 transitions. [2022-11-03 02:47:26,815 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 17341 transitions. Word has length 173 [2022-11-03 02:47:26,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:26,816 INFO L495 AbstractCegarLoop]: Abstraction has 11441 states and 17341 transitions. [2022-11-03 02:47:26,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 02:47:26,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 17341 transitions. [2022-11-03 02:47:26,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-03 02:47:26,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:26,824 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:26,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:47:26,825 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)] === [2022-11-03 02:47:26,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash -752069096, now seen corresponding path program 1 times [2022-11-03 02:47:26,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441334825] [2022-11-03 02:47:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:26,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:27,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:27,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441334825] [2022-11-03 02:47:27,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441334825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:27,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:27,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431151768] [2022-11-03 02:47:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:27,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:27,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:27,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:27,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:27,325 INFO L87 Difference]: Start difference. First operand 11441 states and 17341 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:29,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:38,345 INFO L93 Difference]: Finished difference Result 34153 states and 51767 transitions. [2022-11-03 02:47:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:38,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2022-11-03 02:47:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:38,545 INFO L225 Difference]: With dead ends: 34153 [2022-11-03 02:47:38,545 INFO L226 Difference]: Without dead ends: 22743 [2022-11-03 02:47:38,653 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 [2022-11-03 02:47:38,654 INFO L413 NwaCegarLoop]: 4860 mSDtfsCounter, 4341 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4341 SdHoareTripleChecker+Valid, 8747 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:38,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4341 Valid, 8747 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 02:47:38,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22743 states. [2022-11-03 02:47:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22743 to 22717. [2022-11-03 02:47:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22717 states, 14227 states have (on average 1.3464539256343573) internal successors, (19156), 14601 states have internal predecessors, (19156), 7298 states have call successors, (7298), 1198 states have call predecessors, (7298), 1189 states have return successors, (7963), 7157 states have call predecessors, (7963), 7295 states have call successors, (7963) [2022-11-03 02:47:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22717 states to 22717 states and 34417 transitions. [2022-11-03 02:47:40,871 INFO L78 Accepts]: Start accepts. Automaton has 22717 states and 34417 transitions. Word has length 181 [2022-11-03 02:47:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:40,874 INFO L495 AbstractCegarLoop]: Abstraction has 22717 states and 34417 transitions. [2022-11-03 02:47:40,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 22717 states and 34417 transitions. [2022-11-03 02:47:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-03 02:47:40,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:40,883 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:40,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:47:40,883 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)] === [2022-11-03 02:47:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:40,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2059079839, now seen corresponding path program 1 times [2022-11-03 02:47:40,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:40,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506432608] [2022-11-03 02:47:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:40,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:41,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:41,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506432608] [2022-11-03 02:47:41,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506432608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:41,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:41,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785155283] [2022-11-03 02:47:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:41,346 INFO L87 Difference]: Start difference. First operand 22717 states and 34417 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:43,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:47:52,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:47:52,556 INFO L93 Difference]: Finished difference Result 67873 states and 102823 transitions. [2022-11-03 02:47:52,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:47:52,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 182 [2022-11-03 02:47:52,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:47:52,876 INFO L225 Difference]: With dead ends: 67873 [2022-11-03 02:47:52,876 INFO L226 Difference]: Without dead ends: 45187 [2022-11-03 02:47:53,042 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 [2022-11-03 02:47:53,047 INFO L413 NwaCegarLoop]: 4859 mSDtfsCounter, 4340 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:47:53,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 02:47:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45187 states. [2022-11-03 02:47:56,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45187 to 45161. [2022-11-03 02:47:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45161 states, 28295 states have (on average 1.3449726100017672) internal successors, (38056), 29041 states have internal predecessors, (38056), 14486 states have call successors, (14486), 2394 states have call predecessors, (14486), 2377 states have return successors, (15835), 14205 states have call predecessors, (15835), 14483 states have call successors, (15835) [2022-11-03 02:47:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45161 states to 45161 states and 68377 transitions. [2022-11-03 02:47:56,877 INFO L78 Accepts]: Start accepts. Automaton has 45161 states and 68377 transitions. Word has length 182 [2022-11-03 02:47:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:47:56,878 INFO L495 AbstractCegarLoop]: Abstraction has 45161 states and 68377 transitions. [2022-11-03 02:47:56,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:56,879 INFO L276 IsEmpty]: Start isEmpty. Operand 45161 states and 68377 transitions. [2022-11-03 02:47:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-03 02:47:56,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:47:56,884 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:47:56,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:47:56,885 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)] === [2022-11-03 02:47:56,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:47:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash 748037061, now seen corresponding path program 1 times [2022-11-03 02:47:56,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:47:56,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317678935] [2022-11-03 02:47:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:47:56,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:47:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:47:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:47:57,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:47:57,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317678935] [2022-11-03 02:47:57,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317678935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:47:57,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:47:57,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:47:57,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98704980] [2022-11-03 02:47:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:47:57,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:47:57,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:47:57,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:47:57,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:47:57,259 INFO L87 Difference]: Start difference. First operand 45161 states and 68377 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:47:59,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:10,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:10,874 INFO L93 Difference]: Finished difference Result 134989 states and 204367 transitions. [2022-11-03 02:48:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:10,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 183 [2022-11-03 02:48:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:11,811 INFO L225 Difference]: With dead ends: 134989 [2022-11-03 02:48:11,811 INFO L226 Difference]: Without dead ends: 89859 [2022-11-03 02:48:12,223 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 [2022-11-03 02:48:12,224 INFO L413 NwaCegarLoop]: 4859 mSDtfsCounter, 4339 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:12,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-11-03 02:48:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89859 states. [2022-11-03 02:48:16,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89859 to 89833. [2022-11-03 02:48:17,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89833 states, 56295 states have (on average 1.3433519850786038) internal successors, (75624), 57785 states have internal predecessors, (75624), 28782 states have call successors, (28782), 4786 states have call predecessors, (28782), 4753 states have return successors, (31515), 28221 states have call predecessors, (31515), 28779 states have call successors, (31515) [2022-11-03 02:48:17,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89833 states to 89833 states and 135921 transitions. [2022-11-03 02:48:17,893 INFO L78 Accepts]: Start accepts. Automaton has 89833 states and 135921 transitions. Word has length 183 [2022-11-03 02:48:17,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:48:17,899 INFO L495 AbstractCegarLoop]: Abstraction has 89833 states and 135921 transitions. [2022-11-03 02:48:17,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:48:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 89833 states and 135921 transitions. [2022-11-03 02:48:17,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-03 02:48:17,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:48:17,904 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:48:17,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:48:17,905 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)] === [2022-11-03 02:48:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:48:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1050221668, now seen corresponding path program 1 times [2022-11-03 02:48:17,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:48:17,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238941828] [2022-11-03 02:48:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:48:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:48:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:48:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-11-03 02:48:18,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:48:18,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238941828] [2022-11-03 02:48:18,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238941828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:48:18,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:48:18,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:48:18,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67084272] [2022-11-03 02:48:18,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:48:18,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:48:18,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:48:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:48:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:48:18,753 INFO L87 Difference]: Start difference. First operand 89833 states and 135921 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 02:48:20,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:48:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:48:36,796 INFO L93 Difference]: Finished difference Result 267757 states and 405115 transitions. [2022-11-03 02:48:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:48:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 184 [2022-11-03 02:48:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:48:38,118 INFO L225 Difference]: With dead ends: 267757 [2022-11-03 02:48:38,118 INFO L226 Difference]: Without dead ends: 177955 [2022-11-03 02:48:39,004 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 [2022-11-03 02:48:39,005 INFO L413 NwaCegarLoop]: 4859 mSDtfsCounter, 4338 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4338 SdHoareTripleChecker+Valid, 8746 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:48:39,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4338 Valid, 8746 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-03 02:48:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177955 states.