./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-media-rc-nuvoton-cir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bd03bf538c8a1f05055d45724b67645b210b4f99e6ffddc4b441645e05ec36a --- 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-dbf71c6-m [2022-10-17 10:33:46,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:33:46,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:33:46,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:33:46,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:33:46,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:33:46,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:33:46,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:33:46,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:33:46,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:33:46,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:33:46,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:33:46,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:33:46,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:33:46,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:33:46,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:33:46,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:33:46,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:33:46,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:33:46,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:33:46,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:33:46,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:33:46,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:33:46,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:33:46,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:33:46,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:33:46,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:33:46,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:33:46,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:33:46,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:33:46,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:33:46,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:33:46,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:33:46,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:33:46,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:33:46,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:33:46,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:33:46,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:33:46,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:33:46,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:33:46,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:33:46,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:33:46,519 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:33:46,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:33:46,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:33:46,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:33:46,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:33:46,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:33:46,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:33:46,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:33:46,522 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:33:46,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:33:46,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:33:46,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:33:46,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:33:46,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:33:46,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:33:46,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:33:46,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:33:46,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:33:46,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:33:46,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:33:46,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:33:46,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:33:46,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:33:46,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:33:46,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:33:46,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:33:46,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:33:46,528 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:33:46,529 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:33:46,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:33:46,531 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_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bd03bf538c8a1f05055d45724b67645b210b4f99e6ffddc4b441645e05ec36a [2022-10-17 10:33:46,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:33:46,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:33:46,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:33:46,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:33:46,816 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:33:46,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i [2022-10-17 10:33:46,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/data/63e9db3c4/77a5b9951e1f4f458ae1fe993a76aabf/FLAG05fe1fd85 [2022-10-17 10:33:47,732 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:33:47,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i [2022-10-17 10:33:47,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/data/63e9db3c4/77a5b9951e1f4f458ae1fe993a76aabf/FLAG05fe1fd85 [2022-10-17 10:33:47,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/data/63e9db3c4/77a5b9951e1f4f458ae1fe993a76aabf [2022-10-17 10:33:47,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:33:47,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:33:47,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:33:47,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:33:47,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:33:47,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:33:47" (1/1) ... [2022-10-17 10:33:47,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d6493a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:47, skipping insertion in model container [2022-10-17 10:33:47,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:33:47" (1/1) ... [2022-10-17 10:33:47,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:33:48,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:33:49,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196376,196389] [2022-10-17 10:33:49,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196545,196558] [2022-10-17 10:33:49,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196712,196725] [2022-10-17 10:33:49,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196880,196893] [2022-10-17 10:33:49,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:33:49,683 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:33:49,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196376,196389] [2022-10-17 10:33:49,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196545,196558] [2022-10-17 10:33:49,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196712,196725] [2022-10-17 10:33:49,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i[196880,196893] [2022-10-17 10:33:49,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:33:50,082 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:33:50,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50 WrapperNode [2022-10-17 10:33:50,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:33:50,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:33:50,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:33:50,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:33:50,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,320 INFO L138 Inliner]: procedures = 289, calls = 1101, calls flagged for inlining = 114, calls inlined = 94, statements flattened = 2349 [2022-10-17 10:33:50,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:33:50,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:33:50,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:33:50,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:33:50,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:33:50,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:33:50,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:33:50,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:33:50,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (1/1) ... [2022-10-17 10:33:50,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:33:50,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:33:50,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:33:50,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_877b5313-63de-4efb-8f91-e53065f0c33d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:33:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-17 10:33:50,646 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-17 10:33:50,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:33:50,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:33:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:33:50,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:33:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-10-17 10:33:50,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-10-17 10:33:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_efm_disable [2022-10-17 10:33:50,647 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_efm_disable [2022-10-17 10:33:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:33:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:33:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-10-17 10:33:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-10-17 10:33:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:33:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:33:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2022-10-17 10:33:50,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2022-10-17 10:33:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_reg_read [2022-10-17 10:33:50,649 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_reg_read [2022-10-17 10:33:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-10-17 10:33:50,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-10-17 10:33:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 10:33:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 10:33:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_tx_fifo [2022-10-17 10:33:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_tx_fifo [2022-10-17 10:33:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:33:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:33:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure ir_raw_event_handle [2022-10-17 10:33:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_raw_event_handle [2022-10-17 10:33:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:33:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:33:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure rc_unregister_device [2022-10-17 10:33:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_unregister_device [2022-10-17 10:33:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_cir_wake_fifo [2022-10-17 10:33:50,652 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_cir_wake_fifo [2022-10-17 10:33:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:33:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_process_rx_ir_data [2022-10-17 10:33:50,652 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_process_rx_ir_data [2022-10-17 10:33:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:33:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:33:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:33:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cr_write [2022-10-17 10:33:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cr_write [2022-10-17 10:33:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_remove [2022-10-17 10:33:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_remove [2022-10-17 10:33:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_47 [2022-10-17 10:33:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_47 [2022-10-17 10:33:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_45 [2022-10-17 10:33:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_45 [2022-10-17 10:33:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:33:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:33:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:33:50,655 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:33:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:33:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:33:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_regs_init [2022-10-17 10:33:50,655 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_regs_init [2022-10-17 10:33:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_tx_inactive [2022-10-17 10:33:50,656 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_tx_inactive [2022-10-17 10:33:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-10-17 10:33:50,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-10-17 10:33:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_clear_cir_fifo [2022-10-17 10:33:50,656 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_clear_cir_fifo [2022-10-17 10:33:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:33:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:33:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-10-17 10:33:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-10-17 10:33:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:33:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:33:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-10-17 10:33:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-10-17 10:33:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_reg_read [2022-10-17 10:33:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_reg_read [2022-10-17 10:33:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_nvt_lock_of_nvt_dev [2022-10-17 10:33:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_nvt_lock_of_nvt_dev [2022-10-17 10:33:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 10:33:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 10:33:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_get_rx_ir_data [2022-10-17 10:33:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_get_rx_ir_data [2022-10-17 10:33:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-17 10:33:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-17 10:33:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-10-17 10:33:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-10-17 10:33:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:33:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_reg_write [2022-10-17 10:33:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_reg_write [2022-10-17 10:33:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-10-17 10:33:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-10-17 10:33:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:33:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:33:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_set_cir_iren [2022-10-17 10:33:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_set_cir_iren [2022-10-17 10:33:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:33:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-10-17 10:33:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-10-17 10:33:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 10:33:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 10:33:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-10-17 10:33:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-10-17 10:33:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_set_reg_bit [2022-10-17 10:33:50,662 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_set_reg_bit [2022-10-17 10:33:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-17 10:33:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-17 10:33:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 10:33:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 10:33:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_regs_init [2022-10-17 10:33:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_regs_init [2022-10-17 10:33:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:33:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cr_read [2022-10-17 10:33:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cr_read [2022-10-17 10:33:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_enable_wake [2022-10-17 10:33:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_enable_wake [2022-10-17 10:33:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-10-17 10:33:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-10-17 10:33:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:33:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:33:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:33:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 10:33:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 10:33:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:33:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:33:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:33:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:33:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_cir_wake_reg_write [2022-10-17 10:33:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_cir_wake_reg_write [2022-10-17 10:33:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_efm_enable [2022-10-17 10:33:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_efm_enable [2022-10-17 10:33:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_disable_cir [2022-10-17 10:33:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_disable_cir [2022-10-17 10:33:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-10-17 10:33:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-10-17 10:33:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_select_logical_dev [2022-10-17 10:33:50,668 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_select_logical_dev [2022-10-17 10:33:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:33:50,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:33:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-10-17 10:33:50,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-10-17 10:33:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-10-17 10:33:50,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-10-17 10:33:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure nvt_shutdown [2022-10-17 10:33:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure nvt_shutdown [2022-10-17 10:33:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-17 10:33:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-17 10:33:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2022-10-17 10:33:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2022-10-17 10:33:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:33:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-17 10:33:50,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-17 10:33:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-10-17 10:33:50,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-10-17 10:33:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:33:50,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:33:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:33:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:33:51,210 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:33:51,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:33:51,680 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:33:55,207 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 10:33:55,301 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:33:55,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:33:55,319 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:33:55,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:33:55 BoogieIcfgContainer [2022-10-17 10:33:55,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:33:55,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:33:55,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:33:55,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:33:55,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:33:47" (1/3) ... [2022-10-17 10:33:55,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5c9b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:33:55, skipping insertion in model container [2022-10-17 10:33:55,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:33:50" (2/3) ... [2022-10-17 10:33:55,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5c9b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:33:55, skipping insertion in model container [2022-10-17 10:33:55,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:33:55" (3/3) ... [2022-10-17 10:33:55,337 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-rc-nuvoton-cir.cil.i [2022-10-17 10:33:55,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:33:55,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:33:55,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:33:55,511 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=PETRI_NET, 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;@76f0feae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:33:55,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:33:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 1073 states, 632 states have (on average 1.2373417721518987) internal successors, (782), 646 states have internal predecessors, (782), 368 states have call successors, (368), 71 states have call predecessors, (368), 70 states have return successors, (364), 363 states have call predecessors, (364), 364 states have call successors, (364) [2022-10-17 10:33:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-17 10:33:55,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:33:55,534 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:33:55,534 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)] === [2022-10-17 10:33:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:33:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1302694362, now seen corresponding path program 1 times [2022-10-17 10:33:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:33:55,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292746493] [2022-10-17 10:33:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:33:55,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:33:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:33:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:33:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:33:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:33:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:33:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:33:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:33:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:33:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:33:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:33:56,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:33:56,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292746493] [2022-10-17 10:33:56,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292746493] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:33:56,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:33:56,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:33:56,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901181715] [2022-10-17 10:33:56,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:33:56,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:33:56,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:33:56,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:33:56,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:33:56,330 INFO L87 Difference]: Start difference. First operand has 1073 states, 632 states have (on average 1.2373417721518987) internal successors, (782), 646 states have internal predecessors, (782), 368 states have call successors, (368), 71 states have call predecessors, (368), 70 states have return successors, (364), 363 states have call predecessors, (364), 364 states have call successors, (364) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:34:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:34:00,099 INFO L93 Difference]: Finished difference Result 3210 states and 4628 transitions. [2022-10-17 10:34:00,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:34:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2022-10-17 10:34:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:34:00,154 INFO L225 Difference]: With dead ends: 3210 [2022-10-17 10:34:00,154 INFO L226 Difference]: Without dead ends: 2139 [2022-10-17 10:34:00,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:34:00,170 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 1511 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 1066 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 2471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:34:00,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 3037 Invalid, 2471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1066 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-17 10:34:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-10-17 10:34:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2055. [2022-10-17 10:34:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1211 states have (on average 1.23121387283237) internal successors, (1491), 1237 states have internal predecessors, (1491), 704 states have call successors, (704), 138 states have call predecessors, (704), 137 states have return successors, (701), 699 states have call predecessors, (701), 701 states have call successors, (701) [2022-10-17 10:34:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2896 transitions. [2022-10-17 10:34:00,505 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2896 transitions. Word has length 57 [2022-10-17 10:34:00,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:34:00,506 INFO L495 AbstractCegarLoop]: Abstraction has 2055 states and 2896 transitions. [2022-10-17 10:34:00,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:34:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2896 transitions. [2022-10-17 10:34:00,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-17 10:34:00,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:34:00,524 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:34:00,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:34:00,528 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)] === [2022-10-17 10:34:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:34:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1668427310, now seen corresponding path program 1 times [2022-10-17 10:34:00,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:34:00,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088621642] [2022-10-17 10:34:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:34:00,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:34:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:34:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:34:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:34:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:34:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:34:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:00,938 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-10-17 10:34:00,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:34:00,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088621642] [2022-10-17 10:34:00,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088621642] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:34:00,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:34:00,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:34:00,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029190613] [2022-10-17 10:34:00,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:34:00,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:34:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:34:00,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:34:00,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:34:00,943 INFO L87 Difference]: Start difference. First operand 2055 states and 2896 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:34:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:34:03,576 INFO L93 Difference]: Finished difference Result 3950 states and 5567 transitions. [2022-10-17 10:34:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:34:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2022-10-17 10:34:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:34:03,590 INFO L225 Difference]: With dead ends: 3950 [2022-10-17 10:34:03,590 INFO L226 Difference]: Without dead ends: 1906 [2022-10-17 10:34:03,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:34:03,607 INFO L413 NwaCegarLoop]: 1483 mSDtfsCounter, 747 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2830 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:34:03,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2830 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-17 10:34:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-10-17 10:34:03,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1829. [2022-10-17 10:34:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1140 states have (on average 1.2578947368421052) internal successors, (1434), 1178 states have internal predecessors, (1434), 555 states have call successors, (555), 132 states have call predecessors, (555), 131 states have return successors, (552), 548 states have call predecessors, (552), 552 states have call successors, (552) [2022-10-17 10:34:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2541 transitions. [2022-10-17 10:34:03,735 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2541 transitions. Word has length 71 [2022-10-17 10:34:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:34:03,736 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2541 transitions. [2022-10-17 10:34:03,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:34:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2541 transitions. [2022-10-17 10:34:03,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-17 10:34:03,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:34:03,740 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:34:03,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:34:03,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-10-17 10:34:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:34:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1262481058, now seen corresponding path program 1 times [2022-10-17 10:34:03,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:34:03,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971389895] [2022-10-17 10:34:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:34:03,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:34:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:34:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:34:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:34:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:34:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:34:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:34:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:34:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:34:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:34:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:34:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:34:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-10-17 10:34:04,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:34:04,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971389895] [2022-10-17 10:34:04,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971389895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:34:04,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:34:04,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:34:04,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485319432] [2022-10-17 10:34:04,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:34:04,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:34:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:34:04,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:34:04,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:34:04,090 INFO L87 Difference]: Start difference. First operand 1829 states and 2541 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:34:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:34:07,419 INFO L93 Difference]: Finished difference Result 4767 states and 6663 transitions. [2022-10-17 10:34:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:34:07,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2022-10-17 10:34:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:34:07,448 INFO L225 Difference]: With dead ends: 4767 [2022-10-17 10:34:07,448 INFO L226 Difference]: Without dead ends: 3303 [2022-10-17 10:34:07,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:34:07,457 INFO L413 NwaCegarLoop]: 2021 mSDtfsCounter, 1421 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:34:07,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 3660 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-17 10:34:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2022-10-17 10:34:07,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3181. [2022-10-17 10:34:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 1966 states have (on average 1.2563580874872837) internal successors, (2470), 2025 states have internal predecessors, (2470), 984 states have call successors, (984), 229 states have call predecessors, (984), 228 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-10-17 10:34:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4435 transitions. [2022-10-17 10:34:07,691 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4435 transitions. Word has length 109 [2022-10-17 10:34:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:34:07,692 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 4435 transitions. [2022-10-17 10:34:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-17 10:34:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4435 transitions. [2022-10-17 10:34:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-17 10:34:07,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:34:07,696 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:34:07,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:34:07,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-10-17 10:34:07,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:34:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1685182884, now seen corresponding path program 1 times [2022-10-17 10:34:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:34:07,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122633942] [2022-10-17 10:34:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:34:07,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:34:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:34:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:34:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:34:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:34:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:34:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:34:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:34:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:34:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:34:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:34:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:34:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-17 10:34:08,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:34:08,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122633942] [2022-10-17 10:34:08,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122633942] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:34:08,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:34:08,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:34:08,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521046258] [2022-10-17 10:34:08,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:34:08,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:34:08,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:34:08,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:34:08,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:34:08,267 INFO L87 Difference]: Start difference. First operand 3181 states and 4435 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 10:34:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:34:10,820 INFO L93 Difference]: Finished difference Result 3291 states and 4606 transitions. [2022-10-17 10:34:10,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:34:10,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2022-10-17 10:34:10,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:34:10,847 INFO L225 Difference]: With dead ends: 3291 [2022-10-17 10:34:10,847 INFO L226 Difference]: Without dead ends: 3289 [2022-10-17 10:34:10,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:34:10,851 INFO L413 NwaCegarLoop]: 1376 mSDtfsCounter, 1295 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:34:10,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 3639 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [735 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-17 10:34:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2022-10-17 10:34:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3185. [2022-10-17 10:34:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 1969 states have (on average 1.25596749619096) internal successors, (2473), 2028 states have internal predecessors, (2473), 984 states have call successors, (984), 230 states have call predecessors, (984), 229 states have return successors, (981), 976 states have call predecessors, (981), 981 states have call successors, (981) [2022-10-17 10:34:11,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4438 transitions. [2022-10-17 10:34:11,130 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4438 transitions. Word has length 109 [2022-10-17 10:34:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:34:11,132 INFO L495 AbstractCegarLoop]: Abstraction has 3185 states and 4438 transitions. [2022-10-17 10:34:11,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-17 10:34:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4438 transitions. [2022-10-17 10:34:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-10-17 10:34:11,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:34:11,137 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:34:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:34:11,138 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)] === [2022-10-17 10:34:11,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:34:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1846967406, now seen corresponding path program 1 times [2022-10-17 10:34:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:34:11,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394585813] [2022-10-17 10:34:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:34:11,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:34:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:34:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:34:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:34:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:34:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:34:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:34:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-17 10:34:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:34:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-17 10:34:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 10:34:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:34:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-17 10:34:11,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:34:11,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394585813] [2022-10-17 10:34:11,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394585813] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:34:11,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:34:11,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:34:11,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812219772] [2022-10-17 10:34:11,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:34:11,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:34:11,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:34:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:34:11,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:34:11,497 INFO L87 Difference]: Start difference. First operand 3185 states and 4438 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-17 10:34:14,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:34:14,895 INFO L93 Difference]: Finished difference Result 9100 states and 12700 transitions. [2022-10-17 10:34:14,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:34:14,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-10-17 10:34:14,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:34:14,980 INFO L225 Difference]: With dead ends: 9100 [2022-10-17 10:34:14,981 INFO L226 Difference]: Without dead ends: 5926 [2022-10-17 10:34:14,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:34:14,999 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 1461 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 2452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:34:14,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3205 Invalid, 2452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1044 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-17 10:34:15,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2022-10-17 10:34:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 5691. [2022-10-17 10:34:15,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5691 states, 3503 states have (on average 1.243791036254639) internal successors, (4357), 3597 states have internal predecessors, (4357), 1767 states have call successors, (1767), 419 states have call predecessors, (1767), 418 states have return successors, (1776), 1754 states have call predecessors, (1776), 1764 states have call successors, (1776) [2022-10-17 10:34:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5691 states to 5691 states and 7900 transitions. [2022-10-17 10:34:15,468 INFO L78 Accepts]: Start accepts. Automaton has 5691 states and 7900 transitions. Word has length 124 [2022-10-17 10:34:15,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:34:15,468 INFO L495 AbstractCegarLoop]: Abstraction has 5691 states and 7900 transitions. [2022-10-17 10:34:15,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-10-17 10:34:15,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5691 states and 7900 transitions. [2022-10-17 10:34:15,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-17 10:34:15,473 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:34:15,474 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-10-17 10:34:15,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:34:15,474 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)] === [2022-10-17 10:34:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:34:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1875449172, now seen corresponding path program 1 times [2022-10-17 10:34:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:34:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066471904] [2022-10-17 10:34:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:34:15,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:34:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:34:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:34:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:34:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:34:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-17 10:34:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:34:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-17 10:34:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:34:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:34:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:34:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-17 10:34:15,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:34:15,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-17 10:34:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat