./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/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_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/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_d6802728-13e0-42b2-94a6-1126e5c68f01/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 ce86015a8790fe78c3fa1e0817dad1e3ce7732b16cd3bc300a77723095c4573b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:53:04,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:53:04,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:53:04,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:53:04,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:53:04,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:53:04,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:53:04,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:53:04,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:53:04,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:53:04,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:53:04,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:53:04,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:53:04,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:53:04,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:53:04,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:53:04,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:53:04,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:53:04,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:53:04,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:53:04,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:53:04,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:53:04,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:53:04,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:53:04,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:53:04,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:53:04,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:53:04,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:53:04,681 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:53:04,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:53:04,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:53:04,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:53:04,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:53:04,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:53:04,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:53:04,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:53:04,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:53:04,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:53:04,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:53:04,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:53:04,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:53:04,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:53:04,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:53:04,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:53:04,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:53:04,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:53:04,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:53:04,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:53:04,753 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:53:04,754 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:53:04,754 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:53:04,754 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:53:04,756 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:53:04,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:53:04,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:53:04,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:53:04,757 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:53:04,758 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:53:04,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:53:04,758 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:53:04,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:53:04,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:53:04,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:53:04,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:53:04,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:53:04,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:53:04,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:53:04,763 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:53:04,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:53:04,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:53:04,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:53:04,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:53:04,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:53:04,766 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:53:04,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:53:04,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:53:04,767 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:53:04,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:53:04,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:53:04,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:53:04,768 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_d6802728-13e0-42b2-94a6-1126e5c68f01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce86015a8790fe78c3fa1e0817dad1e3ce7732b16cd3bc300a77723095c4573b [2022-11-03 02:53:05,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:53:05,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:53:05,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:53:05,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:53:05,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:53:05,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-03 02:53:05,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/data/e353a43d6/a603eef2bb794538927f5d310a6c7494/FLAG7abe50607 [2022-11-03 02:53:06,588 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:53:06,589 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-03 02:53:06,678 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/data/e353a43d6/a603eef2bb794538927f5d310a6c7494/FLAG7abe50607 [2022-11-03 02:53:06,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/data/e353a43d6/a603eef2bb794538927f5d310a6c7494 [2022-11-03 02:53:06,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:53:06,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:53:06,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:53:06,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:53:06,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:53:06,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:53:06" (1/1) ... [2022-11-03 02:53:06,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0d0bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:06, skipping insertion in model container [2022-11-03 02:53:06,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:53:06" (1/1) ... [2022-11-03 02:53:06,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:53:07,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:53:11,919 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[509912,509925] [2022-11-03 02:53:11,922 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510081,510094] [2022-11-03 02:53:11,923 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510248,510261] [2022-11-03 02:53:11,924 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510416,510429] [2022-11-03 02:53:11,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:53:12,033 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:53:13,170 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[509912,509925] [2022-11-03 02:53:13,171 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510081,510094] [2022-11-03 02:53:13,172 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510248,510261] [2022-11-03 02:53:13,172 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_d6802728-13e0-42b2-94a6-1126e5c68f01/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i[510416,510429] [2022-11-03 02:53:13,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:53:13,416 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:53:13,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13 WrapperNode [2022-11-03 02:53:13,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:53:13,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:53:13,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:53:13,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:53:13,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:13,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:17,131 INFO L138 Inliner]: procedures = 487, calls = 6591, calls flagged for inlining = 235, calls inlined = 218, statements flattened = 12096 [2022-11-03 02:53:17,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:53:17,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:53:17,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:53:17,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:53:17,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:17,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:18,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:18,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:20,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:20,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:20,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:20,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:21,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:53:21,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:53:21,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:53:21,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:53:21,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (1/1) ... [2022-11-03 02:53:21,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:53:21,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:53:21,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:53:21,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6802728-13e0-42b2-94a6-1126e5c68f01/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:53:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamoff [2022-11-03 02:53:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamoff [2022-11-03 02:53:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-03 02:53:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-03 02:53:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE___0 [2022-11-03 02:53:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE___0 [2022-11-03 02:53:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_reqbufs [2022-11-03 02:53:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_reqbufs [2022-11-03 02:53:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:53:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:53:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-03 02:53:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-03 02:53:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:53:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:53:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-03 02:53:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-03 02:53:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-03 02:53:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-03 02:53:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_window [2022-11-03 02:53:21,639 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_window [2022-11-03 02:53:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:53:21,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-03 02:53:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:53:21,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:53:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_get [2022-11-03 02:53:21,641 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_get [2022-11-03 02:53:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure video_end [2022-11-03 02:53:21,641 INFO L138 BoogieDeclarations]: Found implementation of procedure video_end [2022-11-03 02:53:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2022-11-03 02:53:21,642 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2022-11-03 02:53:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-03 02:53:21,642 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-03 02:53:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-03 02:53:21,643 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-03 02:53:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-03 02:53:21,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_saa7146_vv_cleanup_module_9_2 [2022-11-03 02:53:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_queue [2022-11-03 02:53:21,643 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_queue [2022-11-03 02:53:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure video_close [2022-11-03 02:53:21,644 INFO L138 BoogieDeclarations]: Found implementation of procedure video_close [2022-11-03 02:53:21,644 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_open [2022-11-03 02:53:21,645 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_open [2022-11-03 02:53:21,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_59 [2022-11-03 02:53:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_59 [2022-11-03 02:53:21,648 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-03 02:53:21,648 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-03 02:53:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2022-11-03 02:53:21,649 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2022-11-03 02:53:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_54 [2022-11-03 02:53:21,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_54 [2022-11-03 02:53:21,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:53:21,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:53:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-03 02:53:21,650 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-03 02:53:21,650 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:53:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:53:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_irq_done [2022-11-03 02:53:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_irq_done [2022-11-03 02:53:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-03 02:53:21,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-03 02:53:21,655 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-03 02:53:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-03 02:53:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:53:21,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:53:21,656 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-03 02:53:21,657 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-03 02:53:21,657 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:53:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:53:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-03 02:53:21,658 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-03 02:53:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:53:21,658 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_overlay [2022-11-03 02:53:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_overlay [2022-11-03 02:53:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_dqbuf [2022-11-03 02:53:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_dqbuf [2022-11-03 02:53:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_60 [2022-11-03 02:53:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_60 [2022-11-03 02:53:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure video_irq_done [2022-11-03 02:53:21,659 INFO L138 BoogieDeclarations]: Found implementation of procedure video_irq_done [2022-11-03 02:53:21,659 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-03 02:53:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-03 02:53:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-03 02:53:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_saa7146_dev [2022-11-03 02:53:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_overlay [2022-11-03 02:53:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_overlay [2022-11-03 02:53:21,660 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-03 02:53:21,660 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-03 02:53:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-03 02:53:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-03 02:53:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:53:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:53:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure sort_and_eliminate [2022-11-03 02:53:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sort_and_eliminate [2022-11-03 02:53:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-03 02:53:21,661 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-03 02:53:21,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:53:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_qbuf [2022-11-03 02:53:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_qbuf [2022-11-03 02:53:21,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:53:21,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:53:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:53:21,663 INFO L130 BoogieDeclarations]: Found specification of procedure fops_read [2022-11-03 02:53:21,663 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_read [2022-11-03 02:53:21,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:53:21,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:53:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure release_all_pagetables [2022-11-03 02:53:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure release_all_pagetables [2022-11-03 02:53:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_finish [2022-11-03 02:53:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_finish [2022-11-03 02:53:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_set_output_format [2022-11-03 02:53:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_set_output_format [2022-11-03 02:53:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-03 02:53:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-03 02:53:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:53:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:53:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_stop [2022-11-03 02:53:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_stop [2022-11-03 02:53:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_res_free [2022-11-03 02:53:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_res_free [2022-11-03 02:53:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-03 02:53:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-03 02:53:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fbuf [2022-11-03 02:53:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fbuf [2022-11-03 02:53:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:53:21,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-03 02:53:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2022-11-03 02:53:21,675 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2022-11-03 02:53:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:53:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:53:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:53:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-03 02:53:21,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-03 02:53:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:53:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:53:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:53:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:53:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:53:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:53:21,677 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-03 02:53:21,677 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-03 02:53:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2022-11-03 02:53:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2022-11-03 02:53:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:53:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_s_ctrl [2022-11-03 02:53:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_s_ctrl [2022-11-03 02:53:21,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:53:21,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:53:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:53:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:53:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:53:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:53:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2022-11-03 02:53:21,679 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2022-11-03 02:53:21,679 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-03 02:53:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-03 02:53:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 02:53:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 02:53:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_streamon [2022-11-03 02:53:21,680 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_streamon [2022-11-03 02:53:21,680 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:53:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:53:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-03 02:53:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-03 02:53:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure video_init [2022-11-03 02:53:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure video_init [2022-11-03 02:53:21,681 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_overlay [2022-11-03 02:53:21,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_overlay [2022-11-03 02:53:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2022-11-03 02:53:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2022-11-03 02:53:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 02:53:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 02:53:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:53:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:53:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-03 02:53:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-03 02:53:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure fops_mmap [2022-11-03 02:53:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_mmap [2022-11-03 02:53:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:53:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:53:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_disable_clipping [2022-11-03 02:53:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_disable_clipping [2022-11-03 02:53:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_parm [2022-11-03 02:53:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_parm [2022-11-03 02:53:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:53:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:53:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:53:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-03 02:53:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_stop_preview [2022-11-03 02:53:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_stop_preview [2022-11-03 02:53:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-03 02:53:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-03 02:53:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-03 02:53:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_int_slock_of_saa7146_dev [2022-11-03 02:53:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-03 02:53:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_saa7146_dev [2022-11-03 02:53:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:53:21,686 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:53:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure video_begin [2022-11-03 02:53:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure video_begin [2022-11-03 02:53:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:53:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:53:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure fops_open [2022-11-03 02:53:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_open [2022-11-03 02:53:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_init [2022-11-03 02:53:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_init [2022-11-03 02:53:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:53:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:53:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fbuf [2022-11-03 02:53:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fbuf [2022-11-03 02:53:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-03 02:53:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-03 02:53:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-03 02:53:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-03 02:53:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:53:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:53:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:53:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:53:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-03 02:53:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-03 02:53:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 02:53:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-03 02:53:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:53:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-03 02:53:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-03 02:53:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:53:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:53:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:53:21,692 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:53:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:53:21,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:53:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:53:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:53:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-03 02:53:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-03 02:53:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 02:53:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 02:53:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-03 02:53:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-03 02:53:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_start_preview [2022-11-03 02:53:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_start_preview [2022-11-03 02:53:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-11-03 02:53:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-11-03 02:53:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure fops_release [2022-11-03 02:53:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_release [2022-11-03 02:53:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_querybuf [2022-11-03 02:53:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_querybuf [2022-11-03 02:53:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE___0 [2022-11-03 02:53:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE___0 [2022-11-03 02:53:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:53:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:53:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_write_out_dma [2022-11-03 02:53:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_write_out_dma [2022-11-03 02:53:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:53:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:53:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:53:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_format_by_fourcc [2022-11-03 02:53:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_format_by_fourcc [2022-11-03 02:53:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_dma_free [2022-11-03 02:53:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_dma_free [2022-11-03 02:53:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_buffer_next [2022-11-03 02:53:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_buffer_next [2022-11-03 02:53:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure program_capture_engine [2022-11-03 02:53:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure program_capture_engine [2022-11-03 02:53:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_close [2022-11-03 02:53:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_close [2022-11-03 02:53:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-03 02:53:21,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-03 02:53:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_setup [2022-11-03 02:53:21,712 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_setup [2022-11-03 02:53:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:53:21,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:53:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 02:53:21,712 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 02:53:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure fops_write [2022-11-03 02:53:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_write [2022-11-03 02:53:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_read [2022-11-03 02:53:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_read [2022-11-03 02:53:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:53:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:53:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure fops_poll [2022-11-03 02:53:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fops_poll [2022-11-03 02:53:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:53:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:53:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:53:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:53:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-03 02:53:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:53:21,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:53:23,210 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:53:23,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:53:23,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:56:15,079 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:56:15,252 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:56:25,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:56:25,636 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:56:25,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:56:25 BoogieIcfgContainer [2022-11-03 02:56:25,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:56:25,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:56:25,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:56:25,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:56:25,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:53:06" (1/3) ... [2022-11-03 02:56:25,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@925fcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:56:25, skipping insertion in model container [2022-11-03 02:56:25,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:13" (2/3) ... [2022-11-03 02:56:25,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@925fcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:56:25, skipping insertion in model container [2022-11-03 02:56:25,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:56:25" (3/3) ... [2022-11-03 02:56:25,652 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-common-saa7146-saa7146_vv.cil.i [2022-11-03 02:56:25,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:56:25,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 02:56:25,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:56:25,798 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;@224fec6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:56:25,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 02:56:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 2523 states, 1592 states have (on average 1.329145728643216) internal successors, (2116), 1609 states have internal predecessors, (2116), 792 states have call successors, (792), 137 states have call predecessors, (792), 136 states have return successors, (783), 776 states have call predecessors, (783), 783 states have call successors, (783) [2022-11-03 02:56:25,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-03 02:56:25,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:56:25,861 INFO L195 NwaCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:56:25,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:56:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:56:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1225271138, now seen corresponding path program 1 times [2022-11-03 02:56:25,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:56:25,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532523285] [2022-11-03 02:56:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:56:25,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:56:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:56:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7310 trivial. 0 not checked. [2022-11-03 02:56:27,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:56:27,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532523285] [2022-11-03 02:56:27,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532523285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:56:27,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:56:27,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:56:27,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240978881] [2022-11-03 02:56:27,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:56:27,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:56:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:56:27,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:56:27,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:56:27,612 INFO L87 Difference]: Start difference. First operand has 2523 states, 1592 states have (on average 1.329145728643216) internal successors, (2116), 1609 states have internal predecessors, (2116), 792 states have call successors, (792), 137 states have call predecessors, (792), 136 states have return successors, (783), 776 states have call predecessors, (783), 783 states have call successors, (783) 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:56:31,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:34,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:56:38,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:40,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:56:43,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:56:45,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:48,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:50,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:56:53,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:56:55,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:57,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:56:59,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:01,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:03,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:05,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:07,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:08,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:10,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:12,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:12,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:57:12,381 INFO L93 Difference]: Finished difference Result 7199 states and 10721 transitions. [2022-11-03 02:57:12,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:57:12,388 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 445 [2022-11-03 02:57:12,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:57:12,439 INFO L225 Difference]: With dead ends: 7199 [2022-11-03 02:57:12,439 INFO L226 Difference]: Without dead ends: 4750 [2022-11-03 02:57:12,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:57:12,460 INFO L413 NwaCegarLoop]: 3823 mSDtfsCounter, 3266 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 15 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3278 SdHoareTripleChecker+Valid, 6935 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:57:12,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3278 Valid, 6935 Invalid, 1112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 1084 Invalid, 13 Unknown, 0 Unchecked, 44.3s Time] [2022-11-03 02:57:12,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2022-11-03 02:57:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4740. [2022-11-03 02:57:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4740 states, 3016 states have (on average 1.3242705570291777) internal successors, (3994), 3050 states have internal predecessors, (3994), 1456 states have call successors, (1456), 266 states have call predecessors, (1456), 265 states have return successors, (1462), 1437 states have call predecessors, (1462), 1452 states have call successors, (1462) [2022-11-03 02:57:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6912 transitions. [2022-11-03 02:57:12,877 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6912 transitions. Word has length 445 [2022-11-03 02:57:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:57:12,886 INFO L495 AbstractCegarLoop]: Abstraction has 4740 states and 6912 transitions. [2022-11-03 02:57:12,886 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, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:57:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6912 transitions. [2022-11-03 02:57:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-11-03 02:57:12,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:57:12,902 INFO L195 NwaCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:57:12,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:57:12,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:57:12,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:57:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash -307948962, now seen corresponding path program 1 times [2022-11-03 02:57:12,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:57:12,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420806618] [2022-11-03 02:57:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:57:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:57:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:57:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7310 trivial. 0 not checked. [2022-11-03 02:57:13,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:57:13,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420806618] [2022-11-03 02:57:13,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420806618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:57:13,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:57:13,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:57:13,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653833466] [2022-11-03 02:57:13,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:57:13,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:57:13,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:57:13,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:57:13,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:57:13,801 INFO L87 Difference]: Start difference. First operand 4740 states and 6912 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:57:15,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:18,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:20,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:23,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:26,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:28,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:33,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:38,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:41,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:43,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:45,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:47,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:49,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:57:53,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:57:53,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:57:53,830 INFO L93 Difference]: Finished difference Result 13865 states and 20333 transitions. [2022-11-03 02:57:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:57:53,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 451 [2022-11-03 02:57:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:57:53,910 INFO L225 Difference]: With dead ends: 13865 [2022-11-03 02:57:53,910 INFO L226 Difference]: Without dead ends: 9212 [2022-11-03 02:57:53,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:57:53,944 INFO L413 NwaCegarLoop]: 3859 mSDtfsCounter, 3320 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 3 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 7008 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:57:53,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3330 Valid, 7008 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1039 Invalid, 12 Unknown, 0 Unchecked, 39.6s Time] [2022-11-03 02:57:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9212 states. [2022-11-03 02:57:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9212 to 9173. [2022-11-03 02:57:54,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9173 states, 5852 states have (on average 1.326725905673274) internal successors, (7764), 5919 states have internal predecessors, (7764), 2796 states have call successors, (2796), 527 states have call predecessors, (2796), 522 states have return successors, (2944), 2750 states have call predecessors, (2944), 2792 states have call successors, (2944) [2022-11-03 02:57:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9173 states to 9173 states and 13504 transitions. [2022-11-03 02:57:54,744 INFO L78 Accepts]: Start accepts. Automaton has 9173 states and 13504 transitions. Word has length 451 [2022-11-03 02:57:54,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:57:54,746 INFO L495 AbstractCegarLoop]: Abstraction has 9173 states and 13504 transitions. [2022-11-03 02:57:54,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-03 02:57:54,747 INFO L276 IsEmpty]: Start isEmpty. Operand 9173 states and 13504 transitions. [2022-11-03 02:57:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-11-03 02:57:54,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:57:54,764 INFO L195 NwaCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:57:54,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:57:54,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:57:54,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:57:54,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1267304541, now seen corresponding path program 1 times [2022-11-03 02:57:54,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:57:54,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427714396] [2022-11-03 02:57:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:57:54,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:57:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:57:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7310 trivial. 0 not checked. [2022-11-03 02:57:55,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:57:55,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427714396] [2022-11-03 02:57:55,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427714396] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:57:55,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:57:55,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:57:55,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503419091] [2022-11-03 02:57:55,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:57:55,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:57:55,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:57:55,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:57:55,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:57:55,802 INFO L87 Difference]: Start difference. First operand 9173 states and 13504 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:57:57,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:00,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:02,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:04,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:07,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:10,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:13,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:16,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:18,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:21,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:23,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:25,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:27,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:30,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:32,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:34,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:36,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:38,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:40,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:58:40,445 INFO L93 Difference]: Finished difference Result 22749 states and 33413 transitions. [2022-11-03 02:58:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:58:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 463 [2022-11-03 02:58:40,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:58:40,721 INFO L225 Difference]: With dead ends: 22749 [2022-11-03 02:58:40,721 INFO L226 Difference]: Without dead ends: 13663 [2022-11-03 02:58:40,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:58:40,769 INFO L413 NwaCegarLoop]: 3854 mSDtfsCounter, 3127 mSDsluCounter, 3584 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 13 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:58:40,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 6936 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1113 Invalid, 13 Unknown, 0 Unchecked, 44.1s Time] [2022-11-03 02:58:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-11-03 02:58:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 13624. [2022-11-03 02:58:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13624 states, 8778 states have (on average 1.3282068808384597) internal successors, (11659), 8880 states have internal predecessors, (11659), 4039 states have call successors, (4039), 811 states have call predecessors, (4039), 804 states have return successors, (4254), 3964 states have call predecessors, (4254), 4035 states have call successors, (4254) [2022-11-03 02:58:41,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 19952 transitions. [2022-11-03 02:58:41,725 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 19952 transitions. Word has length 463 [2022-11-03 02:58:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:58:41,728 INFO L495 AbstractCegarLoop]: Abstraction has 13624 states and 19952 transitions. [2022-11-03 02:58:41,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-03 02:58:41,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 19952 transitions. [2022-11-03 02:58:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2022-11-03 02:58:41,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:58:41,746 INFO L195 NwaCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:58:41,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:58:41,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:58:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:58:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1179195941, now seen corresponding path program 1 times [2022-11-03 02:58:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:58:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738341756] [2022-11-03 02:58:41,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:58:41,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:58:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:58:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7310 trivial. 0 not checked. [2022-11-03 02:58:42,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:58:42,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738341756] [2022-11-03 02:58:42,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738341756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:58:42,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:58:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:58:42,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255718433] [2022-11-03 02:58:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:58:42,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:58:42,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:58:42,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:58:42,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:58:42,876 INFO L87 Difference]: Start difference. First operand 13624 states and 19952 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 02:58:44,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:49,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:52,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:58:57,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:58:59,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:03,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:05,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:08,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:10,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:11,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:13,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:16,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:18,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:20,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:22,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:24,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:26,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:59:26,669 INFO L93 Difference]: Finished difference Result 34681 states and 50700 transitions. [2022-11-03 02:59:26,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:59:26,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 470 [2022-11-03 02:59:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:59:26,809 INFO L225 Difference]: With dead ends: 34681 [2022-11-03 02:59:26,809 INFO L226 Difference]: Without dead ends: 21144 [2022-11-03 02:59:26,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:59:26,885 INFO L413 NwaCegarLoop]: 4278 mSDtfsCounter, 3158 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 13 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3172 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:59:26,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3172 Valid, 7361 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1201 Invalid, 12 Unknown, 0 Unchecked, 43.1s Time] [2022-11-03 02:59:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21144 states. [2022-11-03 02:59:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21144 to 21105. [2022-11-03 02:59:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21105 states, 13641 states have (on average 1.3278352026977494) internal successors, (18113), 13808 states have internal predecessors, (18113), 6177 states have call successors, (6177), 1294 states have call predecessors, (6177), 1284 states have return successors, (6483), 6050 states have call predecessors, (6483), 6173 states have call successors, (6483) [2022-11-03 02:59:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21105 states to 21105 states and 30773 transitions. [2022-11-03 02:59:28,510 INFO L78 Accepts]: Start accepts. Automaton has 21105 states and 30773 transitions. Word has length 470 [2022-11-03 02:59:28,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:59:28,512 INFO L495 AbstractCegarLoop]: Abstraction has 21105 states and 30773 transitions. [2022-11-03 02:59:28,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-03 02:59:28,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21105 states and 30773 transitions. [2022-11-03 02:59:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-03 02:59:28,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:59:28,529 INFO L195 NwaCegarLoop]: trace histogram [46, 43, 43, 43, 43, 43, 43, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:59:28,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:59:28,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 02:59:28,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:59:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1266386324, now seen corresponding path program 1 times [2022-11-03 02:59:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:59:28,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714057287] [2022-11-03 02:59:28,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:59:28,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:59:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:59:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7492 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7492 trivial. 0 not checked. [2022-11-03 02:59:30,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:59:30,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714057287] [2022-11-03 02:59:30,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714057287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:59:30,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:59:30,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:59:30,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697119078] [2022-11-03 02:59:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:59:30,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:59:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:59:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:59:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:59:30,569 INFO L87 Difference]: Start difference. First operand 21105 states and 30773 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-03 02:59:33,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:35,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:37,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:40,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:42,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:46,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:50,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:53,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 02:59:56,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:59:58,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:00,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:03,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:05,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:08,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:10,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:13,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:16,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:18,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:20,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:22,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:24,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:00:26,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:00:26,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:00:26,938 INFO L93 Difference]: Finished difference Result 37935 states and 55381 transitions. [2022-11-03 03:00:26,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:00:26,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 479 [2022-11-03 03:00:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:00:27,194 INFO L225 Difference]: With dead ends: 37935 [2022-11-03 03:00:27,194 INFO L226 Difference]: Without dead ends: 37933 [2022-11-03 03:00:27,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:00:27,224 INFO L413 NwaCegarLoop]: 3852 mSDtfsCounter, 3357 mSDsluCounter, 12267 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 14540 SdHoareTripleChecker+Invalid, 2141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:00:27,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 14540 Invalid, 2141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 2124 Invalid, 15 Unknown, 0 Unchecked, 55.0s Time] [2022-11-03 03:00:27,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37933 states. [2022-11-03 03:00:29,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37933 to 37918. [2022-11-03 03:00:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37918 states, 24457 states have (on average 1.328617573700781) internal successors, (32494), 24761 states have internal predecessors, (32494), 11147 states have call successors, (11147), 2330 states have call predecessors, (11147), 2311 states have return successors, (11726), 10914 states have call predecessors, (11726), 11139 states have call successors, (11726) [2022-11-03 03:00:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37918 states to 37918 states and 55367 transitions. [2022-11-03 03:00:30,465 INFO L78 Accepts]: Start accepts. Automaton has 37918 states and 55367 transitions. Word has length 479 [2022-11-03 03:00:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:00:30,467 INFO L495 AbstractCegarLoop]: Abstraction has 37918 states and 55367 transitions. [2022-11-03 03:00:30,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-03 03:00:30,467 INFO L276 IsEmpty]: Start isEmpty. Operand 37918 states and 55367 transitions. [2022-11-03 03:00:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-03 03:00:30,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:00:30,486 INFO L195 NwaCegarLoop]: trace histogram [46, 43, 43, 43, 43, 43, 43, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:00:30,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:00:30,487 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 03:00:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:00:30,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1289468378, now seen corresponding path program 1 times [2022-11-03 03:00:30,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:00:30,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308583546] [2022-11-03 03:00:30,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:00:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:00:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat