./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:27:23,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:27:23,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:27:23,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:27:23,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:27:23,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:27:23,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:27:23,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:27:23,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:27:23,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:27:23,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:27:23,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:27:23,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:27:23,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:27:23,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:27:23,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:27:23,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:27:23,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:27:23,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:27:23,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:27:23,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:27:23,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:27:23,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:27:23,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:27:23,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:27:23,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:27:23,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:27:23,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:27:23,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:27:23,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:27:23,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:27:23,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:27:23,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:27:23,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:27:23,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:27:23,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:27:23,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:27:23,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:27:23,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:27:23,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:27:23,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:27:23,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:27:23,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:27:23,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:27:23,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:27:23,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:27:23,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:27:23,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:27:23,926 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:27:23,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:27:23,927 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:27:23,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:27:23,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:27:23,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:27:23,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:27:23,929 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:27:23,929 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:27:23,930 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:27:23,930 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:27:23,930 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:27:23,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:27:23,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:27:23,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:27:23,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:27:23,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:27:23,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:27:23,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:27:23,933 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:27:23,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:27:23,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:27:23,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:27:23,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:23,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:27:23,935 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:27:23,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:27:23,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:27:23,935 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:27:23,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:27:23,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:27:23,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:27:23,936 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2022-11-19 07:27:24,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:27:24,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:27:24,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:27:24,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:27:24,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:27:24,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-19 07:27:24,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/data/3a2ab6e0b/89e5a7187214479ca225a737e446b811/FLAG7f37782c3 [2022-11-19 07:27:25,783 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:27:25,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-19 07:27:25,875 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/data/3a2ab6e0b/89e5a7187214479ca225a737e446b811/FLAG7f37782c3 [2022-11-19 07:27:26,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/data/3a2ab6e0b/89e5a7187214479ca225a737e446b811 [2022-11-19 07:27:26,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:27:26,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:27:26,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:26,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:27:26,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:27:26,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:26" (1/1) ... [2022-11-19 07:27:26,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6bf67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:26, skipping insertion in model container [2022-11-19 07:27:26,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:27:26" (1/1) ... [2022-11-19 07:27:26,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:27:26,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:27:32,232 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-19 07:27:32,237 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-19 07:27:32,237 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-19 07:27:32,238 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-19 07:27:32,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:32,385 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:27:33,053 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-19 07:27:33,054 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-19 07:27:33,054 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-19 07:27:33,055 WARN L234 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_d932022c-b11d-4ed7-ac01-4d45b4b602aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-19 07:27:33,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:27:33,516 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:27:33,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33 WrapperNode [2022-11-19 07:27:33,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:27:33,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:33,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:27:33,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:27:33,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:33,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,195 INFO L138 Inliner]: procedures = 663, calls = 4693, calls flagged for inlining = 358, calls inlined = 345, statements flattened = 10506 [2022-11-19 07:27:34,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:27:34,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:27:34,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:27:34,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:27:34,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:34,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:35,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:27:35,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:27:35,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:27:35,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:27:35,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (1/1) ... [2022-11-19 07:27:35,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:27:35,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:27:35,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:27:35,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d932022c-b11d-4ed7-ac01-4d45b4b602aa/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:27:35,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:27:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:27:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 07:27:35,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 07:27:35,130 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-19 07:27:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-19 07:27:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:27:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:27:35,131 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-19 07:27:35,131 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-19 07:27:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:27:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:27:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-19 07:27:35,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-19 07:27:35,132 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-19 07:27:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-19 07:27:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-19 07:27:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-19 07:27:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-19 07:27:35,133 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-19 07:27:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-19 07:27:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-19 07:27:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:27:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:27:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-19 07:27:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-19 07:27:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:27:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:27:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-19 07:27:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-19 07:27:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-19 07:27:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-19 07:27:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-19 07:27:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-19 07:27:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-19 07:27:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-19 07:27:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:27:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:27:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:27:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:27:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:27:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:27:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:27:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:27:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-19 07:27:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-19 07:27:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:27:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:27:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:27:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:27:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:27:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:27:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-19 07:27:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-19 07:27:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:27:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:27:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:27:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 07:27:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 07:27:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-19 07:27:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-19 07:27:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-19 07:27:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-19 07:27:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-19 07:27:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-19 07:27:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-19 07:27:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-19 07:27:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-19 07:27:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-19 07:27:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:27:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:27:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-19 07:27:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-19 07:27:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-19 07:27:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-19 07:27:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-19 07:27:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-19 07:27:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-19 07:27:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-19 07:27:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:27:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-19 07:27:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-19 07:27:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:27:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:27:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:27:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-19 07:27:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-19 07:27:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:27:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:27:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-19 07:27:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-19 07:27:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-19 07:27:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-19 07:27:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:27:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:27:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:27:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-19 07:27:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-19 07:27:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:27:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:27:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:27:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:27:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-19 07:27:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-19 07:27:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:27:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:27:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-19 07:27:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-19 07:27:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:27:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:27:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-19 07:27:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-19 07:27:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-19 07:27:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-19 07:27:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-19 07:27:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-19 07:27:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:27:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:27:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:27:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:27:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:27:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 07:27:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 07:27:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:27:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-19 07:27:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-19 07:27:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-19 07:27:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-19 07:27:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:27:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:27:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:27:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:27:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:27:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:27:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:27:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-19 07:27:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-19 07:27:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-19 07:27:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-19 07:27:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:27:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:27:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-19 07:27:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-19 07:27:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-19 07:27:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-19 07:27:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-19 07:27:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-19 07:27:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:27:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:27:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-19 07:27:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-19 07:27:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 07:27:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 07:27:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-19 07:27:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-19 07:27:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-19 07:27:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-19 07:27:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-19 07:27:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-19 07:27:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-19 07:27:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-19 07:27:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-19 07:27:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-19 07:27:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:27:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:27:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-19 07:27:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-19 07:27:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-19 07:27:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-19 07:27:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-19 07:27:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-19 07:27:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:27:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:27:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:27:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:27:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-19 07:27:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-19 07:27:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-19 07:27:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-19 07:27:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-19 07:27:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-19 07:27:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:27:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:27:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-19 07:27:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-19 07:27:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-19 07:27:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-19 07:27:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-19 07:27:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-19 07:27:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-19 07:27:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-19 07:27:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:27:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:27:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-19 07:27:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-19 07:27:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:27:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:27:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-19 07:27:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-19 07:27:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:27:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:27:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-19 07:27:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-19 07:27:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-19 07:27:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-19 07:27:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-19 07:27:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-19 07:27:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-19 07:27:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-19 07:27:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:27:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:27:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-19 07:27:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-19 07:27:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:27:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:27:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-19 07:27:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-19 07:27:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-19 07:27:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-19 07:27:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-19 07:27:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-19 07:27:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:27:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:27:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:27:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:27:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:27:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:27:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:27:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-19 07:27:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-19 07:27:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:27:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-19 07:27:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-19 07:27:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:27:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:27:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-19 07:27:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-19 07:27:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-19 07:27:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-19 07:27:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-19 07:27:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-19 07:27:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:27:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-19 07:27:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-19 07:27:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:27:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:27:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:27:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:27:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:27:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:27:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:27:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:27:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:27:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:27:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-19 07:27:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-19 07:27:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:27:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:27:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-11-19 07:27:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-11-19 07:27:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-19 07:27:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-19 07:27:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-19 07:27:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-19 07:27:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-19 07:27:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-19 07:27:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-19 07:27:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-19 07:27:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:27:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:27:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-19 07:27:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-19 07:27:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-19 07:27:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-19 07:27:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:27:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:27:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-19 07:27:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-19 07:27:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 07:27:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 07:27:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-19 07:27:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-19 07:27:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-19 07:27:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-19 07:27:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:27:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:27:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_72 [2022-11-19 07:27:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_72 [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:27:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-19 07:27:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-19 07:27:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:27:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:27:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-19 07:27:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-19 07:27:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-19 07:27:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-19 07:27:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-19 07:27:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-19 07:27:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-19 07:27:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-19 07:27:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-19 07:27:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-19 07:27:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-19 07:27:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-19 07:27:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:27:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:27:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-19 07:27:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-19 07:27:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-19 07:27:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-19 07:27:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-19 07:27:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-19 07:27:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-19 07:27:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-19 07:27:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-11-19 07:27:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-11-19 07:27:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-19 07:27:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-19 07:27:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-19 07:27:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-19 07:27:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-19 07:27:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-19 07:27:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-19 07:27:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-19 07:27:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-19 07:27:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-19 07:27:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-19 07:27:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-19 07:27:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:27:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:27:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:27:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:27:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-19 07:27:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-19 07:27:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-19 07:27:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-19 07:27:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-19 07:27:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-19 07:27:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-19 07:27:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-19 07:27:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:27:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:27:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-19 07:27:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-19 07:27:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:27:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:27:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:27:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-19 07:27:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-19 07:27:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-19 07:27:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-19 07:27:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-19 07:27:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-19 07:27:36,887 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:27:36,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:27:40,903 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:27:59,876 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:28:00,103 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:28:04,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:28:04,109 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-19 07:28:04,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:04 BoogieIcfgContainer [2022-11-19 07:28:04,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:28:04,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:28:04,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:28:04,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:28:04,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:27:26" (1/3) ... [2022-11-19 07:28:04,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77bc43fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:04, skipping insertion in model container [2022-11-19 07:28:04,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:27:33" (2/3) ... [2022-11-19 07:28:04,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77bc43fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:04, skipping insertion in model container [2022-11-19 07:28:04,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:04" (3/3) ... [2022-11-19 07:28:04,137 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-19 07:28:04,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:28:04,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:28:04,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:28:04,325 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;@6c8d36a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:28:04,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:28:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand has 2327 states, 1391 states have (on average 1.3156002875629045) internal successors, (1830), 1458 states have internal predecessors, (1830), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-19 07:28:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-19 07:28:04,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:04,393 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:04,393 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)] === [2022-11-19 07:28:04,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:04,401 INFO L85 PathProgramCache]: Analyzing trace with hash 689333244, now seen corresponding path program 1 times [2022-11-19 07:28:04,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:04,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806014832] [2022-11-19 07:28:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 07:28:05,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:05,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806014832] [2022-11-19 07:28:05,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806014832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:05,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:05,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:28:05,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537116593] [2022-11-19 07:28:05,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:05,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:05,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:06,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:06,034 INFO L87 Difference]: Start difference. First operand has 2327 states, 1391 states have (on average 1.3156002875629045) internal successors, (1830), 1458 states have internal predecessors, (1830), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:28:09,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:15,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:19,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:28:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:20,197 INFO L93 Difference]: Finished difference Result 6799 states and 9891 transitions. [2022-11-19 07:28:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:20,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-19 07:28:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:20,276 INFO L225 Difference]: With dead ends: 6799 [2022-11-19 07:28:20,276 INFO L226 Difference]: Without dead ends: 4501 [2022-11-19 07:28:20,298 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 [2022-11-19 07:28:20,303 INFO L413 NwaCegarLoop]: 3509 mSDtfsCounter, 3175 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:20,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3178 Valid, 6275 Invalid, 1078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1069 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-11-19 07:28:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2022-11-19 07:28:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4495. [2022-11-19 07:28:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4495 states, 2696 states have (on average 1.3137982195845697) internal successors, (3542), 2825 states have internal predecessors, (3542), 1460 states have call successors, (1460), 337 states have call predecessors, (1460), 336 states have return successors, (1459), 1428 states have call predecessors, (1459), 1456 states have call successors, (1459) [2022-11-19 07:28:20,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 6461 transitions. [2022-11-19 07:28:20,757 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 6461 transitions. Word has length 211 [2022-11-19 07:28:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:20,765 INFO L495 AbstractCegarLoop]: Abstraction has 4495 states and 6461 transitions. [2022-11-19 07:28:20,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:28:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 6461 transitions. [2022-11-19 07:28:20,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-19 07:28:20,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:20,787 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:20,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:28:20,789 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)] === [2022-11-19 07:28:20,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2033701543, now seen corresponding path program 1 times [2022-11-19 07:28:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:20,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555873035] [2022-11-19 07:28:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:20,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 07:28:21,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555873035] [2022-11-19 07:28:21,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555873035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:21,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:21,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:28:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25370652] [2022-11-19 07:28:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:21,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:21,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:21,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:21,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:21,594 INFO L87 Difference]: Start difference. First operand 4495 states and 6461 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:28:25,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:31,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:35,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:35,977 INFO L93 Difference]: Finished difference Result 13369 states and 19241 transitions. [2022-11-19 07:28:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:35,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 215 [2022-11-19 07:28:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:36,057 INFO L225 Difference]: With dead ends: 13369 [2022-11-19 07:28:36,057 INFO L226 Difference]: Without dead ends: 8913 [2022-11-19 07:28:36,083 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 [2022-11-19 07:28:36,085 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 3232 mSDsluCounter, 2771 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:36,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 6335 Invalid, 1076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2022-11-19 07:28:36,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8913 states. [2022-11-19 07:28:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8913 to 8884. [2022-11-19 07:28:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 5344 states have (on average 1.314558383233533) internal successors, (7025), 5604 states have internal predecessors, (7025), 2866 states have call successors, (2866), 672 states have call predecessors, (2866), 671 states have return successors, (2904), 2799 states have call predecessors, (2904), 2862 states have call successors, (2904) [2022-11-19 07:28:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 12795 transitions. [2022-11-19 07:28:36,691 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 12795 transitions. Word has length 215 [2022-11-19 07:28:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:36,693 INFO L495 AbstractCegarLoop]: Abstraction has 8884 states and 12795 transitions. [2022-11-19 07:28:36,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 07:28:36,714 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 12795 transitions. [2022-11-19 07:28:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-19 07:28:36,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:36,721 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:36,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:28:36,722 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)] === [2022-11-19 07:28:36,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:36,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1202802281, now seen corresponding path program 1 times [2022-11-19 07:28:36,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:36,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005729566] [2022-11-19 07:28:36,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:36,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 07:28:37,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:37,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005729566] [2022-11-19 07:28:37,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005729566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:37,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:37,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:28:37,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377859275] [2022-11-19 07:28:37,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:37,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:37,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:37,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:37,458 INFO L87 Difference]: Start difference. First operand 8884 states and 12795 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 07:28:43,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:28:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:49,505 INFO L93 Difference]: Finished difference Result 26326 states and 37933 transitions. [2022-11-19 07:28:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:49,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 226 [2022-11-19 07:28:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:49,659 INFO L225 Difference]: With dead ends: 26326 [2022-11-19 07:28:49,659 INFO L226 Difference]: Without dead ends: 17481 [2022-11-19 07:28:49,723 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 [2022-11-19 07:28:49,728 INFO L413 NwaCegarLoop]: 3624 mSDtfsCounter, 3152 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3154 SdHoareTripleChecker+Valid, 6404 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:49,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3154 Valid, 6404 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1079 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-11-19 07:28:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17481 states. [2022-11-19 07:28:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17481 to 17434. [2022-11-19 07:28:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17434 states, 10490 states have (on average 1.313536701620591) internal successors, (13779), 10992 states have internal predecessors, (13779), 5608 states have call successors, (5608), 1334 states have call predecessors, (5608), 1333 states have return successors, (5750), 5471 states have call predecessors, (5750), 5604 states have call successors, (5750) [2022-11-19 07:28:51,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17434 states to 17434 states and 25137 transitions. [2022-11-19 07:28:51,313 INFO L78 Accepts]: Start accepts. Automaton has 17434 states and 25137 transitions. Word has length 226 [2022-11-19 07:28:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:51,315 INFO L495 AbstractCegarLoop]: Abstraction has 17434 states and 25137 transitions. [2022-11-19 07:28:51,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-19 07:28:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 17434 states and 25137 transitions. [2022-11-19 07:28:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-19 07:28:51,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:51,326 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:51,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:28:51,326 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)] === [2022-11-19 07:28:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:51,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1913895920, now seen corresponding path program 1 times [2022-11-19 07:28:51,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:51,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675786025] [2022-11-19 07:28:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:51,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-19 07:28:52,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:52,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675786025] [2022-11-19 07:28:52,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675786025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:52,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:52,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:28:52,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192174800] [2022-11-19 07:28:52,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:52,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:28:52,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:52,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:28:52,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:28:52,940 INFO L87 Difference]: Start difference. First operand 17434 states and 25137 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:28:57,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:11,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:18,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:24,879 INFO L93 Difference]: Finished difference Result 45402 states and 65019 transitions. [2022-11-19 07:29:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:29:24,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 237 [2022-11-19 07:29:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:25,058 INFO L225 Difference]: With dead ends: 45402 [2022-11-19 07:29:25,059 INFO L226 Difference]: Without dead ends: 28007 [2022-11-19 07:29:25,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:29:25,149 INFO L413 NwaCegarLoop]: 4041 mSDtfsCounter, 10715 mSDsluCounter, 4834 mSDsCounter, 0 mSdLazyCounter, 4322 mSolverCounterSat, 3784 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10929 SdHoareTripleChecker+Valid, 8875 SdHoareTripleChecker+Invalid, 8107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3784 IncrementalHoareTripleChecker+Valid, 4322 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:25,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10929 Valid, 8875 Invalid, 8107 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3784 Valid, 4322 Invalid, 1 Unknown, 0 Unchecked, 30.1s Time] [2022-11-19 07:29:25,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28007 states. [2022-11-19 07:29:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28007 to 27937. [2022-11-19 07:29:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27937 states, 16731 states have (on average 1.3087083856314625) internal successors, (21896), 17548 states have internal predecessors, (21896), 8840 states have call successors, (8840), 2362 states have call predecessors, (8840), 2363 states have return successors, (8990), 8644 states have call predecessors, (8990), 8836 states have call successors, (8990) [2022-11-19 07:29:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27937 states to 27937 states and 39726 transitions. [2022-11-19 07:29:27,644 INFO L78 Accepts]: Start accepts. Automaton has 27937 states and 39726 transitions. Word has length 237 [2022-11-19 07:29:27,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:27,645 INFO L495 AbstractCegarLoop]: Abstraction has 27937 states and 39726 transitions. [2022-11-19 07:29:27,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:29:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 27937 states and 39726 transitions. [2022-11-19 07:29:27,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-19 07:29:27,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:27,655 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:27,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:29:27,656 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)] === [2022-11-19 07:29:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:27,657 INFO L85 PathProgramCache]: Analyzing trace with hash 709596238, now seen corresponding path program 1 times [2022-11-19 07:29:27,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:27,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949744856] [2022-11-19 07:29:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:27,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:28,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-19 07:29:28,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:28,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949744856] [2022-11-19 07:29:28,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949744856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:28,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:28,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:29:28,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625539081] [2022-11-19 07:29:28,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:28,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:29:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:28,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:29:28,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:29:28,447 INFO L87 Difference]: Start difference. First operand 27937 states and 39726 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:29:31,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:29:35,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:29:42,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:29:42,448 INFO L93 Difference]: Finished difference Result 65909 states and 92678 transitions. [2022-11-19 07:29:42,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:29:42,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-11-19 07:29:42,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:29:42,707 INFO L225 Difference]: With dead ends: 65909 [2022-11-19 07:29:42,708 INFO L226 Difference]: Without dead ends: 38011 [2022-11-19 07:29:42,943 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 [2022-11-19 07:29:42,943 INFO L413 NwaCegarLoop]: 3371 mSDtfsCounter, 2495 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 6101 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:29:42,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 6101 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1116 Invalid, 1 Unknown, 0 Unchecked, 12.1s Time] [2022-11-19 07:29:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38011 states. [2022-11-19 07:29:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38011 to 37974. [2022-11-19 07:29:45,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37974 states, 22705 states have (on average 1.287249504514424) internal successors, (29227), 23830 states have internal predecessors, (29227), 11682 states have call successors, (11682), 3585 states have call predecessors, (11682), 3584 states have return successors, (11976), 11372 states have call predecessors, (11976), 11678 states have call successors, (11976) [2022-11-19 07:29:46,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37974 states to 37974 states and 52885 transitions. [2022-11-19 07:29:46,071 INFO L78 Accepts]: Start accepts. Automaton has 37974 states and 52885 transitions. Word has length 237 [2022-11-19 07:29:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:29:46,072 INFO L495 AbstractCegarLoop]: Abstraction has 37974 states and 52885 transitions. [2022-11-19 07:29:46,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-19 07:29:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 37974 states and 52885 transitions. [2022-11-19 07:29:46,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-19 07:29:46,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:29:46,079 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:29:46,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:29:46,080 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)] === [2022-11-19 07:29:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:29:46,081 INFO L85 PathProgramCache]: Analyzing trace with hash -85038764, now seen corresponding path program 1 times [2022-11-19 07:29:46,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:29:46,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034565136] [2022-11-19 07:29:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:29:46,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:29:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:29:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-19 07:29:46,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:29:46,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034565136] [2022-11-19 07:29:46,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034565136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:29:46,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:29:46,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:29:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076239126] [2022-11-19 07:29:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:29:46,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:29:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:29:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:29:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:29:46,772 INFO L87 Difference]: Start difference. First operand 37974 states and 52885 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:29:51,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:01,403 INFO L93 Difference]: Finished difference Result 108362 states and 151381 transitions. [2022-11-19 07:30:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:30:01,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 244 [2022-11-19 07:30:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:01,892 INFO L225 Difference]: With dead ends: 108362 [2022-11-19 07:30:01,892 INFO L226 Difference]: Without dead ends: 70427 [2022-11-19 07:30:02,050 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 [2022-11-19 07:30:02,053 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 3233 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 6489 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:02,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 6489 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1082 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-11-19 07:30:02,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70427 states. [2022-11-19 07:30:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70427 to 70354. [2022-11-19 07:30:06,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70354 states, 42009 states have (on average 1.2904615677592897) internal successors, (54211), 44153 states have internal predecessors, (54211), 21829 states have call successors, (21829), 6522 states have call predecessors, (21829), 6513 states have return successors, (22383), 21192 states have call predecessors, (22383), 21825 states have call successors, (22383) [2022-11-19 07:30:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70354 states to 70354 states and 98423 transitions. [2022-11-19 07:30:06,812 INFO L78 Accepts]: Start accepts. Automaton has 70354 states and 98423 transitions. Word has length 244 [2022-11-19 07:30:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:06,813 INFO L495 AbstractCegarLoop]: Abstraction has 70354 states and 98423 transitions. [2022-11-19 07:30:06,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-19 07:30:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 70354 states and 98423 transitions. [2022-11-19 07:30:06,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-19 07:30:06,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:06,820 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:06,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:30:06,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:30:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:06,824 INFO L85 PathProgramCache]: Analyzing trace with hash -412798029, now seen corresponding path program 1 times [2022-11-19 07:30:06,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:06,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749301871] [2022-11-19 07:30:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:06,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-19 07:30:08,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:08,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749301871] [2022-11-19 07:30:08,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749301871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:08,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:08,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:30:08,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194310081] [2022-11-19 07:30:08,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:08,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:30:08,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:30:08,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:30:08,313 INFO L87 Difference]: Start difference. First operand 70354 states and 98423 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:30:13,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:25,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:27,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:29,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:29,872 INFO L93 Difference]: Finished difference Result 70404 states and 98477 transitions. [2022-11-19 07:30:29,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:30:29,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-11-19 07:30:29,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:30,249 INFO L225 Difference]: With dead ends: 70404 [2022-11-19 07:30:30,250 INFO L226 Difference]: Without dead ends: 70402 [2022-11-19 07:30:30,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:30:30,287 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3240 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 8390 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:30,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 8390 Invalid, 1621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1618 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2022-11-19 07:30:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70402 states. [2022-11-19 07:30:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70402 to 70400. [2022-11-19 07:30:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70400 states, 42036 states have (on average 1.2903701589114092) internal successors, (54242), 44181 states have internal predecessors, (54242), 21838 states have call successors, (21838), 6531 states have call predecessors, (21838), 6523 states have return successors, (22394), 21201 states have call predecessors, (22394), 21834 states have call successors, (22394) [2022-11-19 07:30:34,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70400 states to 70400 states and 98474 transitions. [2022-11-19 07:30:34,472 INFO L78 Accepts]: Start accepts. Automaton has 70400 states and 98474 transitions. Word has length 253 [2022-11-19 07:30:34,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:30:34,475 INFO L495 AbstractCegarLoop]: Abstraction has 70400 states and 98474 transitions. [2022-11-19 07:30:34,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:30:34,475 INFO L276 IsEmpty]: Start isEmpty. Operand 70400 states and 98474 transitions. [2022-11-19 07:30:34,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-19 07:30:34,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:30:34,503 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:30:34,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:30:34,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:30:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:30:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1218404994, now seen corresponding path program 1 times [2022-11-19 07:30:34,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:30:34,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027813174] [2022-11-19 07:30:34,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:30:34,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:30:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:30:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-19 07:30:35,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:30:35,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027813174] [2022-11-19 07:30:35,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027813174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:30:35,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:30:35,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:30:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067265264] [2022-11-19 07:30:35,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:30:35,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:30:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:30:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:30:35,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:30:35,471 INFO L87 Difference]: Start difference. First operand 70400 states and 98474 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:30:40,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:54,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:30:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:30:54,975 INFO L93 Difference]: Finished difference Result 70408 states and 98480 transitions. [2022-11-19 07:30:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:30:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 258 [2022-11-19 07:30:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:30:55,355 INFO L225 Difference]: With dead ends: 70408 [2022-11-19 07:30:55,356 INFO L226 Difference]: Without dead ends: 70406 [2022-11-19 07:30:55,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:30:55,394 INFO L413 NwaCegarLoop]: 2792 mSDtfsCounter, 3235 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 8393 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:30:55,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 8393 Invalid, 1621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1619 Invalid, 1 Unknown, 0 Unchecked, 16.4s Time] [2022-11-19 07:30:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70406 states. [2022-11-19 07:30:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70406 to 70404. [2022-11-19 07:30:59,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70404 states, 42039 states have (on average 1.290349437427151) internal successors, (54245), 44184 states have internal predecessors, (54245), 21838 states have call successors, (21838), 6532 states have call predecessors, (21838), 6524 states have return successors, (22394), 21201 states have call predecessors, (22394), 21834 states have call successors, (22394) [2022-11-19 07:31:00,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70404 states to 70404 states and 98477 transitions. [2022-11-19 07:31:00,343 INFO L78 Accepts]: Start accepts. Automaton has 70404 states and 98477 transitions. Word has length 258 [2022-11-19 07:31:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:00,343 INFO L495 AbstractCegarLoop]: Abstraction has 70404 states and 98477 transitions. [2022-11-19 07:31:00,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:31:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 70404 states and 98477 transitions. [2022-11-19 07:31:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-19 07:31:00,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:00,350 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:31:00,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:31:00,351 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 07:31:00,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1347166239, now seen corresponding path program 1 times [2022-11-19 07:31:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:00,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939934306] [2022-11-19 07:31:00,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:00,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:31:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-11-19 07:31:01,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:31:01,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939934306] [2022-11-19 07:31:01,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939934306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:31:01,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:31:01,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:31:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131055846] [2022-11-19 07:31:01,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:31:01,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:31:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:31:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:31:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:31:01,498 INFO L87 Difference]: Start difference. First operand 70404 states and 98477 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:31:04,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:08,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:17,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:23,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:26,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:31:34,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:31:34,205 INFO L93 Difference]: Finished difference Result 140543 states and 196563 transitions. [2022-11-19 07:31:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:31:34,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 266 [2022-11-19 07:31:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:31:35,166 INFO L225 Difference]: With dead ends: 140543 [2022-11-19 07:31:35,166 INFO L226 Difference]: Without dead ends: 140541 [2022-11-19 07:31:35,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:31:35,249 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 3224 mSDsluCounter, 9735 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 13249 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:31:35,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 13249 Invalid, 2134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2130 Invalid, 2 Unknown, 0 Unchecked, 25.0s Time] [2022-11-19 07:31:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140541 states. [2022-11-19 07:31:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140541 to 140487. [2022-11-19 07:31:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140487 states, 83869 states have (on average 1.2906795120962453) internal successors, (108248), 88156 states have internal predecessors, (108248), 43575 states have call successors, (43575), 13057 states have call predecessors, (43575), 13040 states have return successors, (44687), 42253 states have call predecessors, (44687), 43567 states have call successors, (44687) [2022-11-19 07:31:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140487 states to 140487 states and 196510 transitions. [2022-11-19 07:31:46,379 INFO L78 Accepts]: Start accepts. Automaton has 140487 states and 196510 transitions. Word has length 266 [2022-11-19 07:31:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:31:46,380 INFO L495 AbstractCegarLoop]: Abstraction has 140487 states and 196510 transitions. [2022-11-19 07:31:46,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:31:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 140487 states and 196510 transitions. [2022-11-19 07:31:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-19 07:31:46,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:31:46,386 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:31:46,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:31:46,387 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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)] === [2022-11-19 07:31:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:31:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash -74463717, now seen corresponding path program 1 times [2022-11-19 07:31:46,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:31:46,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831708080] [2022-11-19 07:31:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:31:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:31:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat