./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:37:06,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:37:06,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:37:06,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:37:06,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:37:06,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:37:06,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:37:06,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:37:06,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:37:06,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:37:06,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:37:06,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:37:06,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:37:06,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:37:06,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:37:06,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:37:06,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:37:06,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:37:06,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:37:06,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:37:06,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:37:06,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:37:06,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:37:06,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:37:06,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:37:06,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:37:06,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:37:06,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:37:06,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:37:06,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:37:06,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:37:06,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:37:06,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:37:06,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:37:06,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:37:06,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:37:06,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:37:06,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:37:06,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:37:06,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:37:06,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:37:06,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:37:06,822 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:37:06,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:37:06,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:37:06,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:37:06,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:37:06,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:37:06,825 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:37:06,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:37:06,826 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:37:06,826 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:37:06,827 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:37:06,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:37:06,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:37:06,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:37:06,828 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:37:06,829 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:37:06,829 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:37:06,829 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:37:06,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:37:06,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:37:06,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:37:06,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:37:06,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:37:06,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:37:06,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:37:06,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:37:06,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:37:06,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:37:06,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:37:06,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:37:06,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:37:06,834 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:37:06,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:37:06,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:37:06,835 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:37:06,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:37:06,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:37:06,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:37:06,836 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_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-03 01:37:07,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:37:07,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:37:07,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:37:07,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:37:07,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:37:07,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-03 01:37:07,408 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/data/1067d6266/620b90247be0493abecf7831d90e8a42/FLAGacd94449c [2022-11-03 01:37:08,591 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:37:08,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-03 01:37:08,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/data/1067d6266/620b90247be0493abecf7831d90e8a42/FLAGacd94449c [2022-11-03 01:37:08,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/data/1067d6266/620b90247be0493abecf7831d90e8a42 [2022-11-03 01:37:08,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:37:08,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:37:08,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:37:08,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:37:08,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:37:08,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:08" (1/1) ... [2022-11-03 01:37:08,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b44a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:08, skipping insertion in model container [2022-11-03 01:37:08,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:37:08" (1/1) ... [2022-11-03 01:37:08,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:37:09,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:37:12,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-03 01:37:12,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-03 01:37:12,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-03 01:37:12,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-03 01:37:12,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:37:12,861 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:37:13,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-03 01:37:13,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-03 01:37:13,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-03 01:37:13,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-03 01:37:13,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:37:13,640 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:37:13,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13 WrapperNode [2022-11-03 01:37:13,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:37:13,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:37:13,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:37:13,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:37:13,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:13,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:13,976 INFO L138 Inliner]: procedures = 427, calls = 1735, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4611 [2022-11-03 01:37:13,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:37:13,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:37:13,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:37:13,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:37:13,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:13,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,221 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:37:14,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:37:14,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:37:14,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:37:14,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (1/1) ... [2022-11-03 01:37:14,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:37:14,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:37:14,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:37:14,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f66eaeab-efb0-44f9-8978-008bac1dd7e4/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:37:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-03 01:37:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-03 01:37:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 01:37:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 01:37:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:37:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:37:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-03 01:37:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-03 01:37:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:37:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:37:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:37:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:37:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-03 01:37:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-03 01:37:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-03 01:37:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-03 01:37:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:37:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 01:37:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:37:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:37:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-03 01:37:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:37:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:37:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:37:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:37:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 01:37:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 01:37:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:37:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 01:37:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 01:37:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 01:37:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 01:37:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-03 01:37:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-03 01:37:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:37:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:37:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-03 01:37:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-03 01:37:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:37:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 01:37:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 01:37:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:37:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:37:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-03 01:37:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-03 01:37:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:37:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:37:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:37:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:37:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:37:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:37:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:37:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:37:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 01:37:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 01:37:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:37:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:37:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:37:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:37:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 01:37:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 01:37:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:37:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 01:37:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:37:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 01:37:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 01:37:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:37:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:37:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:37:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:37:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:37:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:37:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:37:14,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:37:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-03 01:37:14,516 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-03 01:37:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:37:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:37:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-03 01:37:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-03 01:37:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:37:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:37:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 01:37:14,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 01:37:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:37:14,520 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:37:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:37:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:37:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:37:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:37:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 01:37:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 01:37:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:37:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:37:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 01:37:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 01:37:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:37:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:37:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:37:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:37:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:37:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 01:37:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 01:37:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 01:37:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-03 01:37:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-03 01:37:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 01:37:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 01:37:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:37:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:37:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:37:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:37:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 01:37:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 01:37:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-03 01:37:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-03 01:37:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:37:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:37:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 01:37:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 01:37:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:37:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-03 01:37:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-03 01:37:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:37:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 01:37:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 01:37:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:37:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-03 01:37:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-03 01:37:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:37:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:37:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:37:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:37:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:37:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:37:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:37:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:37:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:37:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:37:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 01:37:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 01:37:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:37:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:37:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:37:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-03 01:37:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-03 01:37:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-03 01:37:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-03 01:37:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:37:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:37:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 01:37:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 01:37:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 01:37:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 01:37:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:37:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:37:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:37:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-03 01:37:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-03 01:37:15,575 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:37:15,580 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:37:16,678 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:37:19,239 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 01:37:19,366 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:37:20,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:37:20,596 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:37:20,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:20 BoogieIcfgContainer [2022-11-03 01:37:20,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:37:20,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:37:20,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:37:20,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:37:20,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:37:08" (1/3) ... [2022-11-03 01:37:20,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9fe979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:20, skipping insertion in model container [2022-11-03 01:37:20,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:37:13" (2/3) ... [2022-11-03 01:37:20,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9fe979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:37:20, skipping insertion in model container [2022-11-03 01:37:20,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:37:20" (3/3) ... [2022-11-03 01:37:20,615 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-03 01:37:20,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:37:20,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 01:37:20,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:37:20,747 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;@4ad341a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:37:20,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 01:37:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1212 states, 670 states have (on average 1.3044776119402985) internal successors, (874), 695 states have internal predecessors, (874), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-11-03 01:37:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-03 01:37:20,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:20,779 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:20,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:20,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:20,786 INFO L85 PathProgramCache]: Analyzing trace with hash -579458953, now seen corresponding path program 1 times [2022-11-03 01:37:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:20,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199718343] [2022-11-03 01:37:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 01:37:21,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:21,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199718343] [2022-11-03 01:37:21,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199718343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:21,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:21,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:21,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909955691] [2022-11-03 01:37:21,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:21,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:21,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:21,640 INFO L87 Difference]: Start difference. First operand has 1212 states, 670 states have (on average 1.3044776119402985) internal successors, (874), 695 states have internal predecessors, (874), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-03 01:37:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:23,058 INFO L93 Difference]: Finished difference Result 3529 states and 5347 transitions. [2022-11-03 01:37:23,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:23,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2022-11-03 01:37:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:23,098 INFO L225 Difference]: With dead ends: 3529 [2022-11-03 01:37:23,098 INFO L226 Difference]: Without dead ends: 2322 [2022-11-03 01:37:23,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:23,120 INFO L413 NwaCegarLoop]: 2002 mSDtfsCounter, 1689 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:23,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 3543 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 01:37:23,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2022-11-03 01:37:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 2318. [2022-11-03 01:37:23,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1295 states have (on average 1.2972972972972974) internal successors, (1680), 1344 states have internal predecessors, (1680), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-11-03 01:37:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3444 transitions. [2022-11-03 01:37:23,415 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3444 transitions. Word has length 91 [2022-11-03 01:37:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:23,416 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3444 transitions. [2022-11-03 01:37:23,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-03 01:37:23,417 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3444 transitions. [2022-11-03 01:37:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-03 01:37:23,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:23,423 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:23,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:37:23,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash 500607433, now seen corresponding path program 1 times [2022-11-03 01:37:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:23,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293889413] [2022-11-03 01:37:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:23,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 01:37:23,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:23,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293889413] [2022-11-03 01:37:23,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293889413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:23,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:23,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:23,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848012705] [2022-11-03 01:37:23,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:23,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:23,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:23,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:23,705 INFO L87 Difference]: Start difference. First operand 2318 states and 3444 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-03 01:37:25,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:25,085 INFO L93 Difference]: Finished difference Result 6550 states and 9706 transitions. [2022-11-03 01:37:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:25,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2022-11-03 01:37:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:25,115 INFO L225 Difference]: With dead ends: 6550 [2022-11-03 01:37:25,115 INFO L226 Difference]: Without dead ends: 4247 [2022-11-03 01:37:25,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:25,127 INFO L413 NwaCegarLoop]: 2041 mSDtfsCounter, 1489 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:25,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3565 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 01:37:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2022-11-03 01:37:25,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 4215. [2022-11-03 01:37:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 2336 states have (on average 1.2846746575342465) internal successors, (3001), 2412 states have internal predecessors, (3001), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 263 states have return successors, (1621), 1568 states have call predecessors, (1621), 1609 states have call successors, (1621) [2022-11-03 01:37:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6235 transitions. [2022-11-03 01:37:25,646 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6235 transitions. Word has length 98 [2022-11-03 01:37:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:25,647 INFO L495 AbstractCegarLoop]: Abstraction has 4215 states and 6235 transitions. [2022-11-03 01:37:25,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-03 01:37:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6235 transitions. [2022-11-03 01:37:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-03 01:37:25,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:25,651 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:25,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:37:25,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1767529696, now seen corresponding path program 1 times [2022-11-03 01:37:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:25,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490685793] [2022-11-03 01:37:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:25,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 01:37:25,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:25,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490685793] [2022-11-03 01:37:25,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490685793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:25,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:25,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:25,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353280670] [2022-11-03 01:37:25,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:25,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:25,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:25,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:25,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:25,957 INFO L87 Difference]: Start difference. First operand 4215 states and 6235 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-03 01:37:27,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:27,213 INFO L93 Difference]: Finished difference Result 8466 states and 12512 transitions. [2022-11-03 01:37:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-11-03 01:37:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:27,253 INFO L225 Difference]: With dead ends: 8466 [2022-11-03 01:37:27,253 INFO L226 Difference]: Without dead ends: 4266 [2022-11-03 01:37:27,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:27,285 INFO L413 NwaCegarLoop]: 1988 mSDtfsCounter, 1227 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:27,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 3508 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2022-11-03 01:37:27,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4236. [2022-11-03 01:37:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4236 states, 2337 states have (on average 1.278990158322636) internal successors, (2989), 2413 states have internal predecessors, (2989), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 285 states have return successors, (1613), 1565 states have call predecessors, (1613), 1607 states have call successors, (1613) [2022-11-03 01:37:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4236 states to 4236 states and 6213 transitions. [2022-11-03 01:37:27,796 INFO L78 Accepts]: Start accepts. Automaton has 4236 states and 6213 transitions. Word has length 101 [2022-11-03 01:37:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:27,798 INFO L495 AbstractCegarLoop]: Abstraction has 4236 states and 6213 transitions. [2022-11-03 01:37:27,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-03 01:37:27,798 INFO L276 IsEmpty]: Start isEmpty. Operand 4236 states and 6213 transitions. [2022-11-03 01:37:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-03 01:37:27,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:27,810 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:27,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:37:27,811 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1443289555, now seen corresponding path program 1 times [2022-11-03 01:37:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:27,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573073315] [2022-11-03 01:37:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:27,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 01:37:28,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:28,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573073315] [2022-11-03 01:37:28,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573073315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:28,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:28,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:28,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597444499] [2022-11-03 01:37:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:28,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:28,167 INFO L87 Difference]: Start difference. First operand 4236 states and 6213 transitions. 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-03 01:37:29,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:29,576 INFO L93 Difference]: Finished difference Result 11148 states and 16342 transitions. [2022-11-03 01:37:29,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:29,577 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2022-11-03 01:37:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:29,634 INFO L225 Difference]: With dead ends: 11148 [2022-11-03 01:37:29,634 INFO L226 Difference]: Without dead ends: 6927 [2022-11-03 01:37:29,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:29,658 INFO L413 NwaCegarLoop]: 1946 mSDtfsCounter, 1491 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:29,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 3465 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6927 states. [2022-11-03 01:37:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6927 to 6896. [2022-11-03 01:37:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6896 states, 3786 states have (on average 1.272054939249868) internal successors, (4816), 3923 states have internal predecessors, (4816), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 477 states have return successors, (2638), 2533 states have call predecessors, (2638), 2626 states have call successors, (2638) [2022-11-03 01:37:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6896 states to 6896 states and 10084 transitions. [2022-11-03 01:37:30,382 INFO L78 Accepts]: Start accepts. Automaton has 6896 states and 10084 transitions. Word has length 114 [2022-11-03 01:37:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:30,382 INFO L495 AbstractCegarLoop]: Abstraction has 6896 states and 10084 transitions. [2022-11-03 01:37:30,383 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-03 01:37:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 6896 states and 10084 transitions. [2022-11-03 01:37:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-03 01:37:30,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:30,386 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 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] [2022-11-03 01:37:30,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:37:30,387 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:30,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1988526711, now seen corresponding path program 1 times [2022-11-03 01:37:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:30,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161571038] [2022-11-03 01:37:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:30,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-03 01:37:30,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:30,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161571038] [2022-11-03 01:37:30,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161571038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:30,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:30,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:30,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174834638] [2022-11-03 01:37:30,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:30,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:30,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:30,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:30,718 INFO L87 Difference]: Start difference. First operand 6896 states and 10084 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 01:37:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:32,297 INFO L93 Difference]: Finished difference Result 18916 states and 27596 transitions. [2022-11-03 01:37:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2022-11-03 01:37:32,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:32,538 INFO L225 Difference]: With dead ends: 18916 [2022-11-03 01:37:32,539 INFO L226 Difference]: Without dead ends: 12035 [2022-11-03 01:37:32,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:32,569 INFO L413 NwaCegarLoop]: 2326 mSDtfsCounter, 1709 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:32,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 3824 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12035 states. [2022-11-03 01:37:33,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12035 to 11994. [2022-11-03 01:37:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11994 states, 6727 states have (on average 1.2797680987067044) internal successors, (8609), 7003 states have internal predecessors, (8609), 4420 states have call successors, (4420), 873 states have call predecessors, (4420), 844 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-03 01:37:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11994 states to 11994 states and 17473 transitions. [2022-11-03 01:37:33,723 INFO L78 Accepts]: Start accepts. Automaton has 11994 states and 17473 transitions. Word has length 124 [2022-11-03 01:37:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:33,725 INFO L495 AbstractCegarLoop]: Abstraction has 11994 states and 17473 transitions. [2022-11-03 01:37:33,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 01:37:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 11994 states and 17473 transitions. [2022-11-03 01:37:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 01:37:33,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:33,730 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-03 01:37:33,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:37:33,731 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:33,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 456897818, now seen corresponding path program 1 times [2022-11-03 01:37:33,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:33,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005451746] [2022-11-03 01:37:33,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:33,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-03 01:37:34,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:34,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005451746] [2022-11-03 01:37:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005451746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:34,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:34,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:37:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695657280] [2022-11-03 01:37:34,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:34,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:37:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:34,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:37:34,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:37:34,424 INFO L87 Difference]: Start difference. First operand 11994 states and 17473 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:37:36,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:36,259 INFO L93 Difference]: Finished difference Result 12000 states and 17478 transitions. [2022-11-03 01:37:36,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:37:36,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-11-03 01:37:36,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:36,329 INFO L225 Difference]: With dead ends: 12000 [2022-11-03 01:37:36,329 INFO L226 Difference]: Without dead ends: 11998 [2022-11-03 01:37:36,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:37:36,337 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1735 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 4646 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:36,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 4646 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:36,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11998 states. [2022-11-03 01:37:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11998 to 11998. [2022-11-03 01:37:37,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11998 states, 6730 states have (on average 1.2796433878157503) internal successors, (8612), 7006 states have internal predecessors, (8612), 4420 states have call successors, (4420), 874 states have call predecessors, (4420), 845 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-03 01:37:37,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 17476 transitions. [2022-11-03 01:37:37,411 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 17476 transitions. Word has length 133 [2022-11-03 01:37:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:37,412 INFO L495 AbstractCegarLoop]: Abstraction has 11998 states and 17476 transitions. [2022-11-03 01:37:37,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:37:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 17476 transitions. [2022-11-03 01:37:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-03 01:37:37,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:37,417 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-03 01:37:37,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:37:37,418 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)] === [2022-11-03 01:37:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:37,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1540103732, now seen corresponding path program 1 times [2022-11-03 01:37:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:37,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418671201] [2022-11-03 01:37:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-03 01:37:37,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:37,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418671201] [2022-11-03 01:37:37,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418671201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:37,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:37,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:37:37,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757688197] [2022-11-03 01:37:37,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:37,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:37:37,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:37:37,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:37:37,992 INFO L87 Difference]: Start difference. First operand 11998 states and 17476 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 01:37:39,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:39,530 INFO L93 Difference]: Finished difference Result 12004 states and 17481 transitions. [2022-11-03 01:37:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:37:39,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2022-11-03 01:37:39,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:39,598 INFO L225 Difference]: With dead ends: 12004 [2022-11-03 01:37:39,598 INFO L226 Difference]: Without dead ends: 12002 [2022-11-03 01:37:39,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:37:39,609 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1730 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:39,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 4649 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12002 states. [2022-11-03 01:37:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12002 to 12002. [2022-11-03 01:37:40,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12002 states, 6733 states have (on average 1.2795187880588148) internal successors, (8615), 7009 states have internal predecessors, (8615), 4420 states have call successors, (4420), 875 states have call predecessors, (4420), 846 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-03 01:37:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12002 states to 12002 states and 17479 transitions. [2022-11-03 01:37:40,781 INFO L78 Accepts]: Start accepts. Automaton has 12002 states and 17479 transitions. Word has length 138 [2022-11-03 01:37:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:40,782 INFO L495 AbstractCegarLoop]: Abstraction has 12002 states and 17479 transitions. [2022-11-03 01:37:40,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 01:37:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 12002 states and 17479 transitions. [2022-11-03 01:37:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-03 01:37:40,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:40,786 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 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] [2022-11-03 01:37:40,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:37:40,787 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:40,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:40,788 INFO L85 PathProgramCache]: Analyzing trace with hash -883809846, now seen corresponding path program 1 times [2022-11-03 01:37:40,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:40,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377470659] [2022-11-03 01:37:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:40,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-11-03 01:37:41,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:41,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377470659] [2022-11-03 01:37:41,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377470659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:41,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:41,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:41,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128940820] [2022-11-03 01:37:41,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:41,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:41,037 INFO L87 Difference]: Start difference. First operand 12002 states and 17479 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 01:37:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:43,855 INFO L93 Difference]: Finished difference Result 35084 states and 51145 transitions. [2022-11-03 01:37:43,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:37:43,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2022-11-03 01:37:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:44,018 INFO L225 Difference]: With dead ends: 35084 [2022-11-03 01:37:44,018 INFO L226 Difference]: Without dead ends: 23097 [2022-11-03 01:37:44,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:44,088 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 1743 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:44,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3750 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:44,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23097 states. [2022-11-03 01:37:46,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23097 to 23029. [2022-11-03 01:37:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23029 states, 12925 states have (on average 1.281624758220503) internal successors, (16565), 13495 states have internal predecessors, (16565), 8480 states have call successors, (8480), 1678 states have call predecessors, (8480), 1621 states have return successors, (8532), 8039 states have call predecessors, (8532), 8476 states have call successors, (8532) [2022-11-03 01:37:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23029 states to 23029 states and 33577 transitions. [2022-11-03 01:37:46,658 INFO L78 Accepts]: Start accepts. Automaton has 23029 states and 33577 transitions. Word has length 142 [2022-11-03 01:37:46,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:46,659 INFO L495 AbstractCegarLoop]: Abstraction has 23029 states and 33577 transitions. [2022-11-03 01:37:46,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-03 01:37:46,660 INFO L276 IsEmpty]: Start isEmpty. Operand 23029 states and 33577 transitions. [2022-11-03 01:37:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-03 01:37:46,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:46,662 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:37:46,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:37:46,663 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)] === [2022-11-03 01:37:46,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:46,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1318087962, now seen corresponding path program 1 times [2022-11-03 01:37:46,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:46,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883390776] [2022-11-03 01:37:46,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:46,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-11-03 01:37:47,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:47,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883390776] [2022-11-03 01:37:47,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883390776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:47,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:47,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:37:47,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354329059] [2022-11-03 01:37:47,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:47,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:37:47,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:47,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:37:47,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:37:47,087 INFO L87 Difference]: Start difference. First operand 23029 states and 33577 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:37:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:49,597 INFO L93 Difference]: Finished difference Result 23035 states and 33582 transitions. [2022-11-03 01:37:49,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:37:49,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 143 [2022-11-03 01:37:49,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:49,748 INFO L225 Difference]: With dead ends: 23035 [2022-11-03 01:37:49,748 INFO L226 Difference]: Without dead ends: 23033 [2022-11-03 01:37:49,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:37:49,765 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1730 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:49,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 4649 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 01:37:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23033 states. [2022-11-03 01:37:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23033 to 23033. [2022-11-03 01:37:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23033 states, 12928 states have (on average 1.2815594059405941) internal successors, (16568), 13498 states have internal predecessors, (16568), 8480 states have call successors, (8480), 1679 states have call predecessors, (8480), 1622 states have return successors, (8532), 8039 states have call predecessors, (8532), 8476 states have call successors, (8532) [2022-11-03 01:37:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23033 states to 23033 states and 33580 transitions. [2022-11-03 01:37:52,227 INFO L78 Accepts]: Start accepts. Automaton has 23033 states and 33580 transitions. Word has length 143 [2022-11-03 01:37:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:52,233 INFO L495 AbstractCegarLoop]: Abstraction has 23033 states and 33580 transitions. [2022-11-03 01:37:52,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:37:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 23033 states and 33580 transitions. [2022-11-03 01:37:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-03 01:37:52,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:52,238 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 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] [2022-11-03 01:37:52,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:37:52,239 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)] === [2022-11-03 01:37:52,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:52,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1552757858, now seen corresponding path program 1 times [2022-11-03 01:37:52,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:52,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212229768] [2022-11-03 01:37:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-11-03 01:37:52,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:52,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212229768] [2022-11-03 01:37:52,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212229768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:52,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:52,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:37:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125446799] [2022-11-03 01:37:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:52,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:37:52,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:52,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:37:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:37:52,730 INFO L87 Difference]: Start difference. First operand 23033 states and 33580 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:37:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:37:55,314 INFO L93 Difference]: Finished difference Result 23039 states and 33585 transitions. [2022-11-03 01:37:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:37:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2022-11-03 01:37:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:37:55,442 INFO L225 Difference]: With dead ends: 23039 [2022-11-03 01:37:55,442 INFO L226 Difference]: Without dead ends: 23037 [2022-11-03 01:37:55,457 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 [2022-11-03 01:37:55,457 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1729 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:37:55,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 4649 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:37:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23037 states. [2022-11-03 01:37:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23037 to 23037. [2022-11-03 01:37:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23037 states, 12931 states have (on average 1.281494083984224) internal successors, (16571), 13501 states have internal predecessors, (16571), 8480 states have call successors, (8480), 1680 states have call predecessors, (8480), 1623 states have return successors, (8532), 8039 states have call predecessors, (8532), 8476 states have call successors, (8532) [2022-11-03 01:37:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23037 states to 23037 states and 33583 transitions. [2022-11-03 01:37:58,110 INFO L78 Accepts]: Start accepts. Automaton has 23037 states and 33583 transitions. Word has length 152 [2022-11-03 01:37:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:37:58,111 INFO L495 AbstractCegarLoop]: Abstraction has 23037 states and 33583 transitions. [2022-11-03 01:37:58,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 01:37:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 23037 states and 33583 transitions. [2022-11-03 01:37:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-03 01:37:58,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:37:58,116 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 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] [2022-11-03 01:37:58,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:37:58,117 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:37:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:37:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash -189116576, now seen corresponding path program 1 times [2022-11-03 01:37:58,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:37:58,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777466339] [2022-11-03 01:37:58,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:37:58,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:37:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:37:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-11-03 01:37:58,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:37:58,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777466339] [2022-11-03 01:37:58,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777466339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:37:58,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:37:58,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:37:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189020072] [2022-11-03 01:37:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:37:58,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:37:58,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:37:58,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:37:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:37:58,363 INFO L87 Difference]: Start difference. First operand 23037 states and 33583 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:38:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:01,938 INFO L93 Difference]: Finished difference Result 53869 states and 78585 transitions. [2022-11-03 01:38:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2022-11-03 01:38:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:02,143 INFO L225 Difference]: With dead ends: 53869 [2022-11-03 01:38:02,143 INFO L226 Difference]: Without dead ends: 30893 [2022-11-03 01:38:02,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:02,244 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 1231 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 3796 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:02,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 3796 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 01:38:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30893 states. [2022-11-03 01:38:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30893 to 30819. [2022-11-03 01:38:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30819 states, 17393 states have (on average 1.2822974759960903) internal successors, (22303), 18195 states have internal predecessors, (22303), 11200 states have call successors, (11200), 2296 states have call predecessors, (11200), 2223 states have return successors, (11252), 10579 states have call predecessors, (11252), 11196 states have call successors, (11252) [2022-11-03 01:38:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30819 states to 30819 states and 44755 transitions. [2022-11-03 01:38:05,187 INFO L78 Accepts]: Start accepts. Automaton has 30819 states and 44755 transitions. Word has length 148 [2022-11-03 01:38:05,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:05,188 INFO L495 AbstractCegarLoop]: Abstraction has 30819 states and 44755 transitions. [2022-11-03 01:38:05,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-03 01:38:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 30819 states and 44755 transitions. [2022-11-03 01:38:05,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-03 01:38:05,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:05,192 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 4, 4, 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] [2022-11-03 01:38:05,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 01:38:05,193 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:38:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2009477932, now seen corresponding path program 1 times [2022-11-03 01:38:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:05,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484552131] [2022-11-03 01:38:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:05,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:05,878 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-03 01:38:05,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:05,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484552131] [2022-11-03 01:38:05,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484552131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:05,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:05,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:38:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875423012] [2022-11-03 01:38:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:05,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:38:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:38:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:05,882 INFO L87 Difference]: Start difference. First operand 30819 states and 44755 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:38:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:09,179 INFO L93 Difference]: Finished difference Result 30825 states and 44760 transitions. [2022-11-03 01:38:09,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:38:09,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 157 [2022-11-03 01:38:09,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:09,336 INFO L225 Difference]: With dead ends: 30825 [2022-11-03 01:38:09,336 INFO L226 Difference]: Without dead ends: 30823 [2022-11-03 01:38:09,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:09,354 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1729 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:09,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 4649 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:38:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2022-11-03 01:38:12,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 30823. [2022-11-03 01:38:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30823 states, 17396 states have (on average 1.282248792825937) internal successors, (22306), 18198 states have internal predecessors, (22306), 11200 states have call successors, (11200), 2297 states have call predecessors, (11200), 2224 states have return successors, (11252), 10579 states have call predecessors, (11252), 11196 states have call successors, (11252) [2022-11-03 01:38:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30823 states to 30823 states and 44758 transitions. [2022-11-03 01:38:12,563 INFO L78 Accepts]: Start accepts. Automaton has 30823 states and 44758 transitions. Word has length 157 [2022-11-03 01:38:12,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:12,565 INFO L495 AbstractCegarLoop]: Abstraction has 30823 states and 44758 transitions. [2022-11-03 01:38:12,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-03 01:38:12,566 INFO L276 IsEmpty]: Start isEmpty. Operand 30823 states and 44758 transitions. [2022-11-03 01:38:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-03 01:38:12,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:12,570 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 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] [2022-11-03 01:38:12,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 01:38:12,571 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 01:38:12,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1733032546, now seen corresponding path program 1 times [2022-11-03 01:38:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:12,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569378407] [2022-11-03 01:38:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-03 01:38:12,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:12,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569378407] [2022-11-03 01:38:12,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569378407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:12,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:12,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:38:12,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000583177] [2022-11-03 01:38:12,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:12,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:38:12,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:12,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:38:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:12,939 INFO L87 Difference]: Start difference. First operand 30823 states and 44758 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-03 01:38:16,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:16,697 INFO L93 Difference]: Finished difference Result 30829 states and 44763 transitions. [2022-11-03 01:38:16,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:38:16,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-11-03 01:38:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:16,833 INFO L225 Difference]: With dead ends: 30829 [2022-11-03 01:38:16,833 INFO L226 Difference]: Without dead ends: 30827 [2022-11-03 01:38:16,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:16,853 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 1729 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:16,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 4649 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:38:16,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30827 states.