./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:13:52,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:13:52,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:13:52,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:13:52,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:13:52,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:13:52,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:13:52,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:13:52,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:13:52,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:13:52,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:13:52,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:13:52,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:13:52,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:13:52,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:13:52,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:13:52,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:13:52,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:13:52,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:13:53,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:13:53,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:13:53,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:13:53,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:13:53,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:13:53,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:13:53,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:13:53,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:13:53,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:13:53,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:13:53,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:13:53,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:13:53,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:13:53,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:13:53,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:13:53,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:13:53,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:13:53,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:13:53,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:13:53,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:13:53,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:13:53,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:13:53,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:13:53,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:13:53,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:13:53,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:13:53,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:13:53,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:13:53,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:13:53,102 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:13:53,103 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:13:53,103 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:13:53,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:13:53,105 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:13:53,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:13:53,105 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:13:53,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:13:53,106 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:13:53,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:13:53,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:13:53,107 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:13:53,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:13:53,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:13:53,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:13:53,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:13:53,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:13:53,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:13:53,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:13:53,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:13:53,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:13:53,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:13:53,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:13:53,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:13:53,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:13:53,112 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:13:53,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:13:53,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:13:53,113 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:13:53,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:13:53,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:13:53,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:13:53,114 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_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed7e65f4873f721e135371f2b64bea53a61355f60220cd3c965b9b34f2d17e4 [2022-11-19 08:13:53,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:13:53,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:13:53,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:13:53,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:13:53,479 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:13:53,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:13:53,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/data/f9d8a4880/071e49587f804731b08f534eca7376d2/FLAG644276935 [2022-11-19 08:13:54,822 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:13:54,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:13:54,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/data/f9d8a4880/071e49587f804731b08f534eca7376d2/FLAG644276935 [2022-11-19 08:13:54,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/data/f9d8a4880/071e49587f804731b08f534eca7376d2 [2022-11-19 08:13:54,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:13:55,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:13:55,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:13:55,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:13:55,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:13:55,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:13:54" (1/1) ... [2022-11-19 08:13:55,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2418a2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:13:55, skipping insertion in model container [2022-11-19 08:13:55,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:13:54" (1/1) ... [2022-11-19 08:13:55,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:13:55,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:14:01,455 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-11-19 08:14:01,460 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-11-19 08:14:01,461 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-11-19 08:14:01,462 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-11-19 08:14:01,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:01,521 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:14:02,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464820,464833] [2022-11-19 08:14:02,163 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[464989,465002] [2022-11-19 08:14:02,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465156,465169] [2022-11-19 08:14:02,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i[465324,465337] [2022-11-19 08:14:02,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:14:02,589 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:14:02,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02 WrapperNode [2022-11-19 08:14:02,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:14:02,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:02,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:14:02,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:14:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:02,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:02,986 INFO L138 Inliner]: procedures = 663, calls = 2959, calls flagged for inlining = 321, calls inlined = 256, statements flattened = 6116 [2022-11-19 08:14:02,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:14:02,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:14:02,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:14:02,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:14:02,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:14:03,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:14:03,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:14:03,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:14:03,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (1/1) ... [2022-11-19 08:14:03,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:14:03,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:03,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:14:03,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8981694-8477-4213-a851-153449531fb3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:14:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:14:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:14:03,541 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-19 08:14:03,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-19 08:14:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-19 08:14:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-19 08:14:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:14:03,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:14:03,542 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_mac_processor [2022-11-19 08:14:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_mac_processor [2022-11-19 08:14:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:14:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:14:03,543 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32 [2022-11-19 08:14:03,543 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32 [2022-11-19 08:14:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 08:14:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 08:14:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_regs_len [2022-11-19 08:14:03,544 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_regs_len [2022-11-19 08:14:03,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:14:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:14:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:14:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:14:03,545 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_on [2022-11-19 08:14:03,545 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_on [2022-11-19 08:14:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_rx_engine [2022-11-19 08:14:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_rx_engine [2022-11-19 08:14:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:14:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:14:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-19 08:14:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-19 08:14:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 08:14:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 08:14:03,548 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:14:03,548 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:14:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:14:03,549 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:14:03,549 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_link [2022-11-19 08:14:03,549 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_link [2022-11-19 08:14:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:14:03,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:14:03,550 INFO L130 BoogieDeclarations]: Found specification of procedure jme_netpoll [2022-11-19 08:14:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_netpoll [2022-11-19 08:14:03,551 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-11-19 08:14:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-11-19 08:14:03,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:14:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:14:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:14:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:14:03,554 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:14:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:14:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:14:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:14:03,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 08:14:03,556 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:14:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:14:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:14:03,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:14:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-19 08:14:03,557 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-19 08:14:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:14:03,557 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:14:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:14:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure jread32 [2022-11-19 08:14:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure jread32 [2022-11-19 08:14:03,558 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-19 08:14:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-19 08:14:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-19 08:14:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:14:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:14:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_rx_pcc [2022-11-19 08:14:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_rx_pcc [2022-11-19 08:14:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 08:14:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 08:14:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-19 08:14:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-19 08:14:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:14:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_unicastaddr [2022-11-19 08:14:03,562 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_unicastaddr [2022-11-19 08:14:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:14:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:14:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 08:14:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 08:14:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:14:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:14:03,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:14:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_calibration [2022-11-19 08:14:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_calibration [2022-11-19 08:14:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:14:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:14:03,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:14:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_82 [2022-11-19 08:14:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_82 [2022-11-19 08:14:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure jme_restart_rx_engine [2022-11-19 08:14:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_restart_rx_engine [2022-11-19 08:14:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-19 08:14:03,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-19 08:14:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:14:03,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:14:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_88 [2022-11-19 08:14:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_88 [2022-11-19 08:14:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 08:14:03,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 08:14:03,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:14:03,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:14:03,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:14:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:14:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-11-19 08:14:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-11-19 08:14:03,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:14:03,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:14:03,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:14:03,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:14:03,576 INFO L130 BoogieDeclarations]: Found specification of procedure jme_linkstat_from_phy [2022-11-19 08:14:03,577 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_linkstat_from_phy [2022-11-19 08:14:03,582 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_write [2022-11-19 08:14:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_write [2022-11-19 08:14:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_on [2022-11-19 08:14:03,583 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_on [2022-11-19 08:14:03,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:14:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:14:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:14:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:14:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:14:03,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:14:03,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:14:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:14:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:14:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 08:14:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 08:14:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure smi_phy_addr [2022-11-19 08:14:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_phy_addr [2022-11-19 08:14:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:14:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:14:03,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:14:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:14:03,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:14:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:14:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-19 08:14:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-19 08:14:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:14:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:14:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:14:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:14:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-19 08:14:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-19 08:14:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:14:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:14:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure reg_dbg [2022-11-19 08:14:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_dbg [2022-11-19 08:14:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:14:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:14:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:14:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:14:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:14:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:14:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:14:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:14:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure jme_start_irq [2022-11-19 08:14:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_start_irq [2022-11-19 08:14:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-19 08:14:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-19 08:14:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:14:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:14:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 08:14:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 08:14:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-19 08:14:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-19 08:14:03,591 INFO L130 BoogieDeclarations]: Found specification of procedure jme_fill_tx_map [2022-11-19 08:14:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_fill_tx_map [2022-11-19 08:14:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_tx_resources [2022-11-19 08:14:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_tx_resources [2022-11-19 08:14:03,592 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:14:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:14:03,593 INFO L130 BoogieDeclarations]: Found specification of procedure jme_polling_mode [2022-11-19 08:14:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_polling_mode [2022-11-19 08:14:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:14:03,594 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2022-11-19 08:14:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2022-11-19 08:14:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:14:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:14:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:14:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure jme_remove_one [2022-11-19 08:14:03,596 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_remove_one [2022-11-19 08:14:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure jme_powersave_phy [2022-11-19 08:14:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_powersave_phy [2022-11-19 08:14:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_on [2022-11-19 08:14:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_on [2022-11-19 08:14:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-19 08:14:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_jme_cleanup_module_13_2 [2022-11-19 08:14:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure new_phy_power_ctrl [2022-11-19 08:14:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure new_phy_power_ctrl [2022-11-19 08:14:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:14:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:14:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:14:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:14:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-11-19 08:14:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-11-19 08:14:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure jme_intr_msi [2022-11-19 08:14:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_intr_msi [2022-11-19 08:14:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure jwrite32f [2022-11-19 08:14:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure jwrite32f [2022-11-19 08:14:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure smi_reg_addr [2022-11-19 08:14:03,599 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_reg_addr [2022-11-19 08:14:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_settings [2022-11-19 08:14:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_settings [2022-11-19 08:14:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 08:14:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 08:14:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:14:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:14:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:14:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:14:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:14:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:14:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 08:14:03,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 08:14:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-19 08:14:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-19 08:14:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure jme_nway_reset [2022-11-19 08:14:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_nway_reset [2022-11-19 08:14:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:14:03,602 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:14:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:14:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-19 08:14:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-19 08:14:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:14:03,603 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:14:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:14:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure jme_free_rx_resources [2022-11-19 08:14:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_free_rx_resources [2022-11-19 08:14:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure jme_resume [2022-11-19 08:14:03,604 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_resume [2022-11-19 08:14:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_tx_timeout [2022-11-19 08:14:03,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_tx_timeout [2022-11-19 08:14:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:14:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure jme_disable_tx_engine [2022-11-19 08:14:03,605 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_disable_tx_engine [2022-11-19 08:14:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:14:03,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:14:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 08:14:03,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 08:14:03,606 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:14:03,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:14:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:14:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:14:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_txclk_off [2022-11-19 08:14:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_txclk_off [2022-11-19 08:14:03,607 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_setEA [2022-11-19 08:14:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_setEA [2022-11-19 08:14:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-19 08:14:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-19 08:14:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_multi [2022-11-19 08:14:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_multi [2022-11-19 08:14:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-19 08:14:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-19 08:14:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure mmapio_memcpy [2022-11-19 08:14:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure mmapio_memcpy [2022-11-19 08:14:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_87 [2022-11-19 08:14:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_87 [2022-11-19 08:14:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:14:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:14:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:14:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:14:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_read [2022-11-19 08:14:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_read [2022-11-19 08:14:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_81 [2022-11-19 08:14:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_81 [2022-11-19 08:14:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure jme_clear_pm [2022-11-19 08:14:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_clear_pm [2022-11-19 08:14:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2022-11-19 08:14:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2022-11-19 08:14:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure jme_close [2022-11-19 08:14:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_close [2022-11-19 08:14:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:14:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:14:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-19 08:14:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-19 08:14:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-19 08:14:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-19 08:14:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_irq [2022-11-19 08:14:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_irq [2022-11-19 08:14:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:14:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:14:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure jme_shutdown [2022-11-19 08:14:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_shutdown [2022-11-19 08:14:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:14:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mac_rxclk_off [2022-11-19 08:14:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mac_rxclk_off [2022-11-19 08:14:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure jme_reset_phy_processor [2022-11-19 08:14:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_reset_phy_processor [2022-11-19 08:14:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure jme_suspend [2022-11-19 08:14:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_suspend [2022-11-19 08:14:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:14:03,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:14:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:14:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:14:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_specreg_write [2022-11-19 08:14:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_specreg_write [2022-11-19 08:14:03,615 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:14:03,615 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:14:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure jme_phy_off [2022-11-19 08:14:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_phy_off [2022-11-19 08:14:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_phyfifo_5level [2022-11-19 08:14:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_phyfifo_5level [2022-11-19 08:14:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-19 08:14:03,616 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-19 08:14:03,616 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-19 08:14:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-19 08:14:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure jme_get_eeprom_len [2022-11-19 08:14:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_get_eeprom_len [2022-11-19 08:14:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-19 08:14:03,617 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-19 08:14:03,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:14:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:14:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure jme_stop_pcc_timer [2022-11-19 08:14:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_stop_pcc_timer [2022-11-19 08:14:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure jme_interrupt_mode [2022-11-19 08:14:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_interrupt_mode [2022-11-19 08:14:03,618 INFO L130 BoogieDeclarations]: Found specification of procedure jme_set_settings [2022-11-19 08:14:03,618 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_set_settings [2022-11-19 08:14:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure jme_mdio_read [2022-11-19 08:14:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_mdio_read [2022-11-19 08:14:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-19 08:14:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-19 08:14:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:14:03,619 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:14:03,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:14:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure jme_open [2022-11-19 08:14:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure jme_open [2022-11-19 08:14:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:14:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:14:03,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-19 08:14:03,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-19 08:14:03,621 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2022-11-19 08:14:03,621 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2022-11-19 08:14:04,943 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:14:04,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:14:05,620 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:14:13,368 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:14:13,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:14:16,056 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:14:16,057 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-19 08:14:16,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:16 BoogieIcfgContainer [2022-11-19 08:14:16,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:14:16,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:14:16,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:14:16,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:14:16,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:13:54" (1/3) ... [2022-11-19 08:14:16,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fdc70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:16, skipping insertion in model container [2022-11-19 08:14:16,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:14:02" (2/3) ... [2022-11-19 08:14:16,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fdc70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:14:16, skipping insertion in model container [2022-11-19 08:14:16,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:14:16" (3/3) ... [2022-11-19 08:14:16,078 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-jme.cil.i [2022-11-19 08:14:16,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:14:16,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:14:16,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:14:16,378 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;@54b4193f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:14:16,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:14:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) [2022-11-19 08:14:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-19 08:14:16,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:16,436 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:16,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:14:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:16,445 INFO L85 PathProgramCache]: Analyzing trace with hash -785445321, now seen corresponding path program 1 times [2022-11-19 08:14:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:16,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813856088] [2022-11-19 08:14:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:16,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 08:14:17,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:17,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813856088] [2022-11-19 08:14:17,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813856088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:17,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:17,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:17,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369455980] [2022-11-19 08:14:17,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:17,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:17,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:17,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:17,565 INFO L87 Difference]: Start difference. First operand has 2082 states, 1186 states have (on average 1.302698145025295) internal successors, (1545), 1237 states have internal predecessors, (1545), 740 states have call successors, (740), 158 states have call predecessors, (740), 157 states have return successors, (731), 715 states have call predecessors, (731), 731 states have call successors, (731) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:22,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:22,173 INFO L93 Difference]: Finished difference Result 6060 states and 8952 transitions. [2022-11-19 08:14:22,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:22,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 201 [2022-11-19 08:14:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:22,247 INFO L225 Difference]: With dead ends: 6060 [2022-11-19 08:14:22,248 INFO L226 Difference]: Without dead ends: 4002 [2022-11-19 08:14:22,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:22,303 INFO L413 NwaCegarLoop]: 3235 mSDtfsCounter, 2835 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2835 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:22,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2835 Valid, 5758 Invalid, 875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 08:14:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4002 states. [2022-11-19 08:14:22,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4002 to 3998. [2022-11-19 08:14:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2286 states have (on average 1.2979002624671916) internal successors, (2967), 2381 states have internal predecessors, (2967), 1399 states have call successors, (1399), 311 states have call predecessors, (1399), 310 states have return successors, (1395), 1363 states have call predecessors, (1395), 1395 states have call successors, (1395) [2022-11-19 08:14:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5761 transitions. [2022-11-19 08:14:22,888 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5761 transitions. Word has length 201 [2022-11-19 08:14:22,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:22,890 INFO L495 AbstractCegarLoop]: Abstraction has 3998 states and 5761 transitions. [2022-11-19 08:14:22,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:22,891 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5761 transitions. [2022-11-19 08:14:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-19 08:14:22,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:22,900 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:22,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:14:22,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:14:22,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash -539434472, now seen corresponding path program 1 times [2022-11-19 08:14:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:22,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129096533] [2022-11-19 08:14:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:22,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 08:14:23,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:23,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129096533] [2022-11-19 08:14:23,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129096533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:23,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:23,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:23,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943524790] [2022-11-19 08:14:23,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:23,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:23,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:23,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:23,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:23,360 INFO L87 Difference]: Start difference. First operand 3998 states and 5761 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:28,178 INFO L93 Difference]: Finished difference Result 10936 states and 15695 transitions. [2022-11-19 08:14:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2022-11-19 08:14:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:28,246 INFO L225 Difference]: With dead ends: 10936 [2022-11-19 08:14:28,246 INFO L226 Difference]: Without dead ends: 6975 [2022-11-19 08:14:28,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:28,275 INFO L413 NwaCegarLoop]: 3082 mSDtfsCounter, 2164 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 5554 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:28,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 5554 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:14:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2022-11-19 08:14:28,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6941. [2022-11-19 08:14:28,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 3935 states have (on average 1.2884371029224904) internal successors, (5070), 4113 states have internal predecessors, (5070), 2432 states have call successors, (2432), 574 states have call predecessors, (2432), 571 states have return successors, (2430), 2357 states have call predecessors, (2430), 2428 states have call successors, (2430) [2022-11-19 08:14:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 9932 transitions. [2022-11-19 08:14:28,982 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 9932 transitions. Word has length 209 [2022-11-19 08:14:28,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:28,984 INFO L495 AbstractCegarLoop]: Abstraction has 6941 states and 9932 transitions. [2022-11-19 08:14:28,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 9932 transitions. [2022-11-19 08:14:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-19 08:14:28,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:28,992 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:28,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:14:28,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:14:28,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 100089333, now seen corresponding path program 1 times [2022-11-19 08:14:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:28,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926629119] [2022-11-19 08:14:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:28,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 08:14:29,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:29,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926629119] [2022-11-19 08:14:29,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926629119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:29,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:29,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:29,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123496231] [2022-11-19 08:14:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:29,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:29,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:29,577 INFO L87 Difference]: Start difference. First operand 6941 states and 9932 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:33,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:36,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:36,749 INFO L93 Difference]: Finished difference Result 20015 states and 28588 transitions. [2022-11-19 08:14:36,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2022-11-19 08:14:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:36,877 INFO L225 Difference]: With dead ends: 20015 [2022-11-19 08:14:36,877 INFO L226 Difference]: Without dead ends: 13111 [2022-11-19 08:14:36,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:36,935 INFO L413 NwaCegarLoop]: 3518 mSDtfsCounter, 2682 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:36,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 5998 Invalid, 1006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 976 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-19 08:14:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13111 states. [2022-11-19 08:14:37,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13111 to 13073. [2022-11-19 08:14:37,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13073 states, 7379 states have (on average 1.2730722320097574) internal successors, (9394), 7709 states have internal predecessors, (9394), 4578 states have call successors, (4578), 1118 states have call predecessors, (4578), 1113 states have return successors, (4576), 4443 states have call predecessors, (4576), 4574 states have call successors, (4576) [2022-11-19 08:14:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13073 states to 13073 states and 18548 transitions. [2022-11-19 08:14:38,033 INFO L78 Accepts]: Start accepts. Automaton has 13073 states and 18548 transitions. Word has length 212 [2022-11-19 08:14:38,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:38,040 INFO L495 AbstractCegarLoop]: Abstraction has 13073 states and 18548 transitions. [2022-11-19 08:14:38,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 13073 states and 18548 transitions. [2022-11-19 08:14:38,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-19 08:14:38,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:38,048 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:38,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:14:38,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:14:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash -214756802, now seen corresponding path program 1 times [2022-11-19 08:14:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945395143] [2022-11-19 08:14:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-19 08:14:38,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:38,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945395143] [2022-11-19 08:14:38,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945395143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:38,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:38,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:38,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100298341] [2022-11-19 08:14:38,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:38,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:38,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:38,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:38,481 INFO L87 Difference]: Start difference. First operand 13073 states and 18548 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:41,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:14:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:44,434 INFO L93 Difference]: Finished difference Result 27277 states and 38575 transitions. [2022-11-19 08:14:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:44,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 216 [2022-11-19 08:14:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:44,548 INFO L225 Difference]: With dead ends: 27277 [2022-11-19 08:14:44,548 INFO L226 Difference]: Without dead ends: 14241 [2022-11-19 08:14:44,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:44,629 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 2495 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 6230 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:44,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 6230 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 08:14:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-11-19 08:14:45,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 14205. [2022-11-19 08:14:45,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14205 states, 8005 states have (on average 1.2615865084322297) internal successors, (10099), 8375 states have internal predecessors, (10099), 4923 states have call successors, (4923), 1282 states have call predecessors, (4923), 1274 states have return successors, (4921), 4760 states have call predecessors, (4921), 4919 states have call successors, (4921) [2022-11-19 08:14:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14205 states to 14205 states and 19943 transitions. [2022-11-19 08:14:46,044 INFO L78 Accepts]: Start accepts. Automaton has 14205 states and 19943 transitions. Word has length 216 [2022-11-19 08:14:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:46,046 INFO L495 AbstractCegarLoop]: Abstraction has 14205 states and 19943 transitions. [2022-11-19 08:14:46,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 08:14:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 14205 states and 19943 transitions. [2022-11-19 08:14:46,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-19 08:14:46,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:46,055 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:46,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:14:46,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:14:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:46,057 INFO L85 PathProgramCache]: Analyzing trace with hash 222110285, now seen corresponding path program 1 times [2022-11-19 08:14:46,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:46,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716875690] [2022-11-19 08:14:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:46,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2022-11-19 08:14:46,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:46,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716875690] [2022-11-19 08:14:46,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716875690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:46,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:46,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:14:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880930544] [2022-11-19 08:14:46,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:46,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:14:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:46,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:14:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:46,536 INFO L87 Difference]: Start difference. First operand 14205 states and 19943 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 08:14:51,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:51,658 INFO L93 Difference]: Finished difference Result 36813 states and 51817 transitions. [2022-11-19 08:14:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:14:51,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 232 [2022-11-19 08:14:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:51,808 INFO L225 Difference]: With dead ends: 36813 [2022-11-19 08:14:51,808 INFO L226 Difference]: Without dead ends: 22645 [2022-11-19 08:14:51,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:14:51,880 INFO L413 NwaCegarLoop]: 3497 mSDtfsCounter, 2811 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2811 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:51,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2811 Valid, 6005 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 957 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 08:14:51,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22645 states. [2022-11-19 08:14:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22645 to 22599. [2022-11-19 08:14:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22599 states, 12877 states have (on average 1.2658227848101267) internal successors, (16300), 13483 states have internal predecessors, (16300), 7740 states have call successors, (7740), 1994 states have call predecessors, (7740), 1979 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:14:53,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22599 states to 22599 states and 31780 transitions. [2022-11-19 08:14:53,674 INFO L78 Accepts]: Start accepts. Automaton has 22599 states and 31780 transitions. Word has length 232 [2022-11-19 08:14:53,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:53,675 INFO L495 AbstractCegarLoop]: Abstraction has 22599 states and 31780 transitions. [2022-11-19 08:14:53,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 08:14:53,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22599 states and 31780 transitions. [2022-11-19 08:14:53,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-19 08:14:53,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:53,683 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:53,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:14:53,683 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)] === [2022-11-19 08:14:53,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:53,684 INFO L85 PathProgramCache]: Analyzing trace with hash 299218812, now seen corresponding path program 1 times [2022-11-19 08:14:53,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:53,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425725863] [2022-11-19 08:14:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:53,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-19 08:14:54,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:54,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425725863] [2022-11-19 08:14:54,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425725863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:54,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:14:54,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:14:54,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100560590] [2022-11-19 08:14:54,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:54,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:14:54,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:54,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:14:54,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:14:54,573 INFO L87 Difference]: Start difference. First operand 22599 states and 31780 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 08:15:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:00,405 INFO L93 Difference]: Finished difference Result 22605 states and 31785 transitions. [2022-11-19 08:15:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:00,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 243 [2022-11-19 08:15:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:00,539 INFO L225 Difference]: With dead ends: 22605 [2022-11-19 08:15:00,539 INFO L226 Difference]: Without dead ends: 22603 [2022-11-19 08:15:00,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:00,551 INFO L413 NwaCegarLoop]: 2530 mSDtfsCounter, 2888 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 7572 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:00,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 7572 Invalid, 1300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:15:00,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22603 states. [2022-11-19 08:15:02,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22603 to 22603. [2022-11-19 08:15:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22603 states, 12880 states have (on average 1.2657608695652174) internal successors, (16303), 13486 states have internal predecessors, (16303), 7740 states have call successors, (7740), 1995 states have call predecessors, (7740), 1980 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:15:02,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22603 states to 22603 states and 31783 transitions. [2022-11-19 08:15:02,664 INFO L78 Accepts]: Start accepts. Automaton has 22603 states and 31783 transitions. Word has length 243 [2022-11-19 08:15:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:02,665 INFO L495 AbstractCegarLoop]: Abstraction has 22603 states and 31783 transitions. [2022-11-19 08:15:02,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-19 08:15:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22603 states and 31783 transitions. [2022-11-19 08:15:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-19 08:15:02,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:02,671 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:02,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:15:02,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 482976188, now seen corresponding path program 1 times [2022-11-19 08:15:02,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:02,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459924250] [2022-11-19 08:15:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-19 08:15:03,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:03,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459924250] [2022-11-19 08:15:03,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459924250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:03,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:03,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:03,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749342795] [2022-11-19 08:15:03,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:03,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:03,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:03,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:03,371 INFO L87 Difference]: Start difference. First operand 22603 states and 31783 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 08:15:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:10,337 INFO L93 Difference]: Finished difference Result 22609 states and 31788 transitions. [2022-11-19 08:15:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:10,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 248 [2022-11-19 08:15:10,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:10,503 INFO L225 Difference]: With dead ends: 22609 [2022-11-19 08:15:10,504 INFO L226 Difference]: Without dead ends: 22607 [2022-11-19 08:15:10,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:10,521 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2883 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:10,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 08:15:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22607 states. [2022-11-19 08:15:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22607 to 22607. [2022-11-19 08:15:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22607 states, 12883 states have (on average 1.2656989831560972) internal successors, (16306), 13489 states have internal predecessors, (16306), 7740 states have call successors, (7740), 1996 states have call predecessors, (7740), 1981 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:15:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22607 states to 22607 states and 31786 transitions. [2022-11-19 08:15:12,347 INFO L78 Accepts]: Start accepts. Automaton has 22607 states and 31786 transitions. Word has length 248 [2022-11-19 08:15:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:12,348 INFO L495 AbstractCegarLoop]: Abstraction has 22607 states and 31786 transitions. [2022-11-19 08:15:12,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 08:15:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand 22607 states and 31786 transitions. [2022-11-19 08:15:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-19 08:15:12,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:12,355 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:12,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:15:12,355 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:12,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1391773892, now seen corresponding path program 1 times [2022-11-19 08:15:12,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:12,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783270493] [2022-11-19 08:15:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:12,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:13,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1411 trivial. 0 not checked. [2022-11-19 08:15:13,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:13,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783270493] [2022-11-19 08:15:13,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783270493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:13,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:13,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:13,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693125018] [2022-11-19 08:15:13,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:13,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:13,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:13,253 INFO L87 Difference]: Start difference. First operand 22607 states and 31786 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:15:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:18,988 INFO L93 Difference]: Finished difference Result 22613 states and 31791 transitions. [2022-11-19 08:15:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 253 [2022-11-19 08:15:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:19,138 INFO L225 Difference]: With dead ends: 22613 [2022-11-19 08:15:19,139 INFO L226 Difference]: Without dead ends: 22611 [2022-11-19 08:15:19,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:19,158 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2883 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:19,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:15:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22611 states. [2022-11-19 08:15:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22611 to 22611. [2022-11-19 08:15:20,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22611 states, 12886 states have (on average 1.2656371255626262) internal successors, (16309), 13492 states have internal predecessors, (16309), 7740 states have call successors, (7740), 1997 states have call predecessors, (7740), 1982 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:15:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22611 states to 22611 states and 31789 transitions. [2022-11-19 08:15:21,033 INFO L78 Accepts]: Start accepts. Automaton has 22611 states and 31789 transitions. Word has length 253 [2022-11-19 08:15:21,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:21,034 INFO L495 AbstractCegarLoop]: Abstraction has 22611 states and 31789 transitions. [2022-11-19 08:15:21,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:15:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 22611 states and 31789 transitions. [2022-11-19 08:15:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-19 08:15:21,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:21,042 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 4, 3, 3, 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] [2022-11-19 08:15:21,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:15:21,042 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:21,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:21,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2142429972, now seen corresponding path program 1 times [2022-11-19 08:15:21,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:21,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419556379] [2022-11-19 08:15:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:21,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2022-11-19 08:15:21,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419556379] [2022-11-19 08:15:21,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419556379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:21,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:21,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833219236] [2022-11-19 08:15:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:21,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:21,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:21,650 INFO L87 Difference]: Start difference. First operand 22611 states and 31789 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 08:15:27,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:27,540 INFO L93 Difference]: Finished difference Result 22617 states and 31794 transitions. [2022-11-19 08:15:27,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:27,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 261 [2022-11-19 08:15:27,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:27,628 INFO L225 Difference]: With dead ends: 22617 [2022-11-19 08:15:27,628 INFO L226 Difference]: Without dead ends: 22615 [2022-11-19 08:15:27,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:27,639 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2882 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:27,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:15:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22615 states. [2022-11-19 08:15:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22615 to 22615. [2022-11-19 08:15:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22615 states, 12889 states have (on average 1.2655752967646832) internal successors, (16312), 13495 states have internal predecessors, (16312), 7740 states have call successors, (7740), 1998 states have call predecessors, (7740), 1983 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:15:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22615 states to 22615 states and 31792 transitions. [2022-11-19 08:15:29,504 INFO L78 Accepts]: Start accepts. Automaton has 22615 states and 31792 transitions. Word has length 261 [2022-11-19 08:15:29,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:29,505 INFO L495 AbstractCegarLoop]: Abstraction has 22615 states and 31792 transitions. [2022-11-19 08:15:29,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 08:15:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 22615 states and 31792 transitions. [2022-11-19 08:15:29,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-19 08:15:29,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:29,516 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:29,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:15:29,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:29,529 INFO L85 PathProgramCache]: Analyzing trace with hash -204950597, now seen corresponding path program 1 times [2022-11-19 08:15:29,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:29,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500618800] [2022-11-19 08:15:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:29,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1439 trivial. 0 not checked. [2022-11-19 08:15:30,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500618800] [2022-11-19 08:15:30,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500618800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:30,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:30,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:30,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081115372] [2022-11-19 08:15:30,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:30,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:30,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:30,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:30,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:30,180 INFO L87 Difference]: Start difference. First operand 22615 states and 31792 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 08:15:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:36,144 INFO L93 Difference]: Finished difference Result 22621 states and 31797 transitions. [2022-11-19 08:15:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:36,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 267 [2022-11-19 08:15:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:36,231 INFO L225 Difference]: With dead ends: 22621 [2022-11-19 08:15:36,231 INFO L226 Difference]: Without dead ends: 22619 [2022-11-19 08:15:36,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:36,243 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2882 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:36,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-19 08:15:36,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22619 states. [2022-11-19 08:15:37,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22619 to 22619. [2022-11-19 08:15:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22619 states, 12892 states have (on average 1.2655134967421657) internal successors, (16315), 13498 states have internal predecessors, (16315), 7740 states have call successors, (7740), 1999 states have call predecessors, (7740), 1984 states have return successors, (7740), 7458 states have call predecessors, (7740), 7736 states have call successors, (7740) [2022-11-19 08:15:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22619 states to 22619 states and 31795 transitions. [2022-11-19 08:15:38,098 INFO L78 Accepts]: Start accepts. Automaton has 22619 states and 31795 transitions. Word has length 267 [2022-11-19 08:15:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:38,099 INFO L495 AbstractCegarLoop]: Abstraction has 22619 states and 31795 transitions. [2022-11-19 08:15:38,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 08:15:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 22619 states and 31795 transitions. [2022-11-19 08:15:38,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-19 08:15:38,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:38,111 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:38,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:15:38,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1315889368, now seen corresponding path program 1 times [2022-11-19 08:15:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:38,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810064146] [2022-11-19 08:15:38,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:38,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-11-19 08:15:38,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:38,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810064146] [2022-11-19 08:15:38,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810064146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:38,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:38,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:15:38,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422470535] [2022-11-19 08:15:38,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:38,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:15:38,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:38,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:15:38,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:38,547 INFO L87 Difference]: Start difference. First operand 22619 states and 31795 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:15:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:45,607 INFO L93 Difference]: Finished difference Result 54589 states and 76785 transitions. [2022-11-19 08:15:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:15:45,608 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 263 [2022-11-19 08:15:45,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:45,755 INFO L225 Difference]: With dead ends: 54589 [2022-11-19 08:15:45,755 INFO L226 Difference]: Without dead ends: 32103 [2022-11-19 08:15:45,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:15:45,870 INFO L413 NwaCegarLoop]: 3796 mSDtfsCounter, 2490 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6290 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:45,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 6290 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:15:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32103 states. [2022-11-19 08:15:48,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32103 to 32039. [2022-11-19 08:15:48,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32039 states, 18305 states have (on average 1.265118819994537) internal successors, (23158), 19171 states have internal predecessors, (23158), 10902 states have call successors, (10902), 2854 states have call predecessors, (10902), 2829 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-11-19 08:15:48,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32039 states to 32039 states and 44964 transitions. [2022-11-19 08:15:48,203 INFO L78 Accepts]: Start accepts. Automaton has 32039 states and 44964 transitions. Word has length 263 [2022-11-19 08:15:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:48,204 INFO L495 AbstractCegarLoop]: Abstraction has 32039 states and 44964 transitions. [2022-11-19 08:15:48,204 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, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-19 08:15:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 32039 states and 44964 transitions. [2022-11-19 08:15:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-19 08:15:48,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:48,213 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:48,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:15:48,213 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:48,214 INFO L85 PathProgramCache]: Analyzing trace with hash 323605469, now seen corresponding path program 1 times [2022-11-19 08:15:48,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:48,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069708660] [2022-11-19 08:15:48,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:48,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1465 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1455 trivial. 0 not checked. [2022-11-19 08:15:48,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069708660] [2022-11-19 08:15:48,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069708660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:48,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:48,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863466402] [2022-11-19 08:15:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:48,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:48,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:48,855 INFO L87 Difference]: Start difference. First operand 32039 states and 44964 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 08:15:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:15:56,231 INFO L93 Difference]: Finished difference Result 32045 states and 44969 transitions. [2022-11-19 08:15:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:15:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 272 [2022-11-19 08:15:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:15:56,364 INFO L225 Difference]: With dead ends: 32045 [2022-11-19 08:15:56,364 INFO L226 Difference]: Without dead ends: 32043 [2022-11-19 08:15:56,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:15:56,381 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2882 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:15:56,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-19 08:15:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32043 states. [2022-11-19 08:15:58,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32043 to 32043. [2022-11-19 08:15:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32043 states, 18308 states have (on average 1.265075376884422) internal successors, (23161), 19174 states have internal predecessors, (23161), 10902 states have call successors, (10902), 2855 states have call predecessors, (10902), 2830 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-11-19 08:15:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32043 states to 32043 states and 44967 transitions. [2022-11-19 08:15:58,872 INFO L78 Accepts]: Start accepts. Automaton has 32043 states and 44967 transitions. Word has length 272 [2022-11-19 08:15:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:15:58,873 INFO L495 AbstractCegarLoop]: Abstraction has 32043 states and 44967 transitions. [2022-11-19 08:15:58,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-19 08:15:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 32043 states and 44967 transitions. [2022-11-19 08:15:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-19 08:15:58,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:15:58,878 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:15:58,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:15:58,879 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:15:58,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:15:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1369346235, now seen corresponding path program 1 times [2022-11-19 08:15:58,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:15:58,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547650186] [2022-11-19 08:15:58,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:15:58,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:15:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:15:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1487 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1475 trivial. 0 not checked. [2022-11-19 08:15:59,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:15:59,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547650186] [2022-11-19 08:15:59,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547650186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:15:59,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:15:59,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:15:59,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396510419] [2022-11-19 08:15:59,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:15:59,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:15:59,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:15:59,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:15:59,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:15:59,547 INFO L87 Difference]: Start difference. First operand 32043 states and 44967 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 08:16:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:06,932 INFO L93 Difference]: Finished difference Result 32049 states and 44972 transitions. [2022-11-19 08:16:06,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:16:06,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 277 [2022-11-19 08:16:06,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:07,092 INFO L225 Difference]: With dead ends: 32049 [2022-11-19 08:16:07,092 INFO L226 Difference]: Without dead ends: 32047 [2022-11-19 08:16:07,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:16:07,109 INFO L413 NwaCegarLoop]: 2533 mSDtfsCounter, 2882 mSDsluCounter, 5042 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2892 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:07,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2892 Valid, 7575 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:16:07,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32047 states. [2022-11-19 08:16:09,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32047 to 32047. [2022-11-19 08:16:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32047 states, 18311 states have (on average 1.2650319480093932) internal successors, (23164), 19177 states have internal predecessors, (23164), 10902 states have call successors, (10902), 2856 states have call predecessors, (10902), 2831 states have return successors, (10904), 10489 states have call predecessors, (10904), 10898 states have call successors, (10904) [2022-11-19 08:16:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32047 states to 32047 states and 44970 transitions. [2022-11-19 08:16:09,681 INFO L78 Accepts]: Start accepts. Automaton has 32047 states and 44970 transitions. Word has length 277 [2022-11-19 08:16:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:09,682 INFO L495 AbstractCegarLoop]: Abstraction has 32047 states and 44970 transitions. [2022-11-19 08:16:09,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-19 08:16:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 32047 states and 44970 transitions. [2022-11-19 08:16:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-19 08:16:09,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:09,687 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:09,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:16:09,688 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:16:09,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:09,688 INFO L85 PathProgramCache]: Analyzing trace with hash 835733085, now seen corresponding path program 1 times [2022-11-19 08:16:09,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:09,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504463118] [2022-11-19 08:16:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:09,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1499 trivial. 0 not checked. [2022-11-19 08:16:10,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:10,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504463118] [2022-11-19 08:16:10,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504463118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:10,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:10,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:16:10,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88984229] [2022-11-19 08:16:10,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:10,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:16:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:10,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:16:10,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:16:10,287 INFO L87 Difference]: Start difference. First operand 32047 states and 44970 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-19 08:16:14,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []