./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:07:43,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:07:43,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:07:43,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:07:43,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:07:43,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:07:43,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:07:43,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:07:43,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:07:43,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:07:43,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:07:43,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:07:43,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:07:43,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:07:43,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:07:43,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:07:43,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:07:43,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:07:43,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:07:43,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:07:43,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:07:43,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:07:43,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:07:43,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:07:43,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:07:43,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:07:43,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:07:43,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:07:43,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:07:43,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:07:43,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:07:43,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:07:43,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:07:43,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:07:43,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:07:43,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:07:43,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:07:43,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:07:43,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:07:43,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:07:43,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:07:43,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:07:43,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:07:43,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:07:43,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:07:43,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:07:43,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:07:43,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:07:43,970 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:07:43,971 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:07:43,971 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:07:43,971 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:07:43,972 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:07:43,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:07:43,972 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:07:43,973 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:07:43,973 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:07:43,973 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:07:43,973 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:07:43,974 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:07:43,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:07:43,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:07:43,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:07:43,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:07:43,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:07:43,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:07:43,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:07:43,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:07:43,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:07:43,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:07:43,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:07:43,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:07:43,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:07:43,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:07:43,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:07:43,979 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:07:43,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:07:43,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:07:43,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:07:43,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:07:43,980 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57970899ca10de02cc3a4434b3e2b7041d723fc550c3fb62d1c86f37c18186c5 [2021-11-25 20:07:44,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:07:44,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:07:44,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:07:44,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:07:44,288 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:07:44,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-25 20:07:44,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/data/9a1c553a6/389e8215a7b545f8879039fe09c09f66/FLAG061f4eb01 [2021-11-25 20:07:45,538 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:07:45,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-25 20:07:45,642 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/data/9a1c553a6/389e8215a7b545f8879039fe09c09f66/FLAG061f4eb01 [2021-11-25 20:07:45,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/data/9a1c553a6/389e8215a7b545f8879039fe09c09f66 [2021-11-25 20:07:45,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:07:45,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:07:45,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:07:45,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:07:45,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:07:45,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:07:45" (1/1) ... [2021-11-25 20:07:45,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0bae60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:45, skipping insertion in model container [2021-11-25 20:07:45,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:07:45" (1/1) ... [2021-11-25 20:07:45,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:07:46,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:07:49,306 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-25 20:07:49,310 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-25 20:07:49,310 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-25 20:07:49,311 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-25 20:07:49,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:07:49,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:07:50,138 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539011,539024] [2021-11-25 20:07:50,139 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539177,539190] [2021-11-25 20:07:50,139 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539341,539354] [2021-11-25 20:07:50,140 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_a8576225-bd56-4cc3-a2e3-4e9973d941e4/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i[539506,539519] [2021-11-25 20:07:50,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:07:50,465 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:07:50,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50 WrapperNode [2021-11-25 20:07:50,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:07:50,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:07:50,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:07:50,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:07:50,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:50,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:50,928 INFO L137 Inliner]: procedures = 374, calls = 3972, calls flagged for inlining = 239, calls inlined = 225, statements flattened = 7966 [2021-11-25 20:07:50,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:07:50,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:07:50,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:07:50,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:07:50,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:50,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:50,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:07:51,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:07:51,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:07:51,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:07:51,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (1/1) ... [2021-11-25 20:07:51,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:07:51,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:07:51,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:07:51,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8576225-bd56-4cc3-a2e3-4e9973d941e4/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:07:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_frontend_attach [2021-11-25 20:07:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_frontend_attach [2021-11-25 20:07:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_exit [2021-11-25 20:07:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_exit [2021-11-25 20:07:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure dw2104_i2c_transfer [2021-11-25 20:07:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2104_i2c_transfer [2021-11-25 20:07:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:07:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:07:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_13_4 [2021-11-25 20:07:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_13_4 [2021-11-25 20:07:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:07:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_init [2021-11-25 20:07:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_init [2021-11-25 20:07:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:07:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:07:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:07:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_i2c_transfer [2021-11-25 20:07:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_i2c_transfer [2021-11-25 20:07:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 20:07:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 20:07:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_adapdata [2021-11-25 20:07:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_adapdata [2021-11-25 20:07:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:07:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:07:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-25 20:07:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2021-11-25 20:07:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure rc_keydown [2021-11-25 20:07:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_keydown [2021-11-25 20:07:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_power_ctrl [2021-11-25 20:07:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_power_ctrl [2021-11-25 20:07:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2021-11-25 20:07:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2021-11-25 20:07:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_tuner_attach [2021-11-25 20:07:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_tuner_attach [2021-11-25 20:07:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure zl100313_frontend_attach [2021-11-25 20:07:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure zl100313_frontend_attach [2021-11-25 20:07:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_i2c_transfer [2021-11-25 20:07:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_i2c_transfer [2021-11-25 20:07:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:07:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-25 20:07:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dw2102_driver_exit_17_2 [2021-11-25 20:07:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:07:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:07:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:07:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 20:07:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-25 20:07:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:07:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:07:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:07:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:07:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_streaming_ctrl [2021-11-25 20:07:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_streaming_ctrl [2021-11-25 20:07:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 20:07:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2021-11-25 20:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure dw3101_frontend_attach [2021-11-25 20:07:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dw3101_frontend_attach [2021-11-25 20:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:07:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:07:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_i2c_transfer [2021-11-25 20:07:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_i2c_transfer [2021-11-25 20:07:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:07:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:07:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:07:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:07:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-25 20:07:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_op_rw [2021-11-25 20:07:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_op_rw [2021-11-25 20:07:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:07:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_frontend_attach [2021-11-25 20:07:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_frontend_attach [2021-11-25 20:07:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:07:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:07:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_generic_rw [2021-11-25 20:07:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_generic_rw [2021-11-25 20:07:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:07:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:07:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:07:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_serit_i2c_transfer [2021-11-25 20:07:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_serit_i2c_transfer [2021-11-25 20:07:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:07:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:07:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 20:07:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 20:07:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2021-11-25 20:07:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2021-11-25 20:07:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure t220_frontend_attach [2021-11-25 20:07:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure t220_frontend_attach [2021-11-25 20:07:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:07:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:07:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:07:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:07:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:07:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_load_firmware [2021-11-25 20:07:51,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_load_firmware [2021-11-25 20:07:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_rc_query [2021-11-25 20:07:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_rc_query [2021-11-25 20:07:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_i2c_transfer [2021-11-25 20:07:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_i2c_transfer [2021-11-25 20:07:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-25 20:07:51,554 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-25 20:07:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:07:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_frontend_attach [2021-11-25 20:07:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_frontend_attach [2021-11-25 20:07:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:07:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:07:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:07:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:07:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:07:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 20:07:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 20:07:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:07:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:07:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:07:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_read_mac_address [2021-11-25 20:07:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_read_mac_address [2021-11-25 20:07:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure dw2102_probe [2021-11-25 20:07:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dw2102_probe [2021-11-25 20:07:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:07:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:07:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_read_mac_address [2021-11-25 20:07:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_read_mac_address [2021-11-25 20:07:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2021-11-25 20:07:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2021-11-25 20:07:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:07:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_rc_query [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_rc_query [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure dw210x_i2c_func [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure dw210x_i2c_func [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure s6x0_read_mac_address [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure s6x0_read_mac_address [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:07:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:07:51,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:07:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-25 20:07:51,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_i2c_mutex_of_dvb_usb_device [2021-11-25 20:07:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:07:51,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:07:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2021-11-25 20:07:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure su3000_identify_state [2021-11-25 20:07:51,561 INFO L138 BoogieDeclarations]: Found implementation of procedure su3000_identify_state [2021-11-25 20:07:52,698 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:07:52,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:08:11,213 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:18:59,222 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:18:59,330 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:19:02,630 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:19:02,630 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:19:02,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:19:02 BoogieIcfgContainer [2021-11-25 20:19:02,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:19:02,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:19:02,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:19:02,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:19:02,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:07:45" (1/3) ... [2021-11-25 20:19:02,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f8df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:19:02, skipping insertion in model container [2021-11-25 20:19:02,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:07:50" (2/3) ... [2021-11-25 20:19:02,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0f8df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:19:02, skipping insertion in model container [2021-11-25 20:19:02,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:19:02" (3/3) ... [2021-11-25 20:19:02,645 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-dw2102.cil.i [2021-11-25 20:19:02,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:19:02,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 20:19:02,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:19:02,744 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:19:02,745 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 20:19:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) [2021-11-25 20:19:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1066 [2021-11-25 20:19:02,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:02,896 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:02,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:02,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1382441658, now seen corresponding path program 1 times [2021-11-25 20:19:02,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:02,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057792053] [2021-11-25 20:19:02,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:02,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 43059 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43059 trivial. 0 not checked. [2021-11-25 20:19:05,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:05,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057792053] [2021-11-25 20:19:05,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057792053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:05,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:05,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:05,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684513690] [2021-11-25 20:19:05,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:05,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:05,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:05,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:05,464 INFO L87 Difference]: Start difference. First operand has 2103 states, 1380 states have (on average 1.3869565217391304) internal successors, (1914), 1411 states have internal predecessors, (1914), 653 states have call successors, (653), 68 states have call predecessors, (653), 67 states have return successors, (647), 647 states have call predecessors, (647), 647 states have call successors, (647) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-25 20:19:07,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:12,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:12,574 INFO L93 Difference]: Finished difference Result 5817 states and 9068 transitions. [2021-11-25 20:19:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:12,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) Word has length 1065 [2021-11-25 20:19:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:12,660 INFO L225 Difference]: With dead ends: 5817 [2021-11-25 20:19:12,660 INFO L226 Difference]: Without dead ends: 3913 [2021-11-25 20:19:12,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:12,698 INFO L933 BasicCegarLoop]: 3336 mSDtfsCounter, 2816 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 6113 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:12,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2816 Valid, 6113 Invalid, 816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 804 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-25 20:19:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-11-25 20:19:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3909. [2021-11-25 20:19:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 2614 states have (on average 1.3982402448355011) internal successors, (3655), 2675 states have internal predecessors, (3655), 1162 states have call successors, (1162), 131 states have call predecessors, (1162), 130 states have return successors, (1158), 1158 states have call predecessors, (1158), 1158 states have call successors, (1158) [2021-11-25 20:19:13,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 5975 transitions. [2021-11-25 20:19:13,154 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 5975 transitions. Word has length 1065 [2021-11-25 20:19:13,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:13,163 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 5975 transitions. [2021-11-25 20:19:13,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (111), 2 states have call predecessors, (111), 1 states have return successors, (109), 3 states have call predecessors, (109), 3 states have call successors, (109) [2021-11-25 20:19:13,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 5975 transitions. [2021-11-25 20:19:13,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2021-11-25 20:19:13,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:13,230 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:13,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:19:13,231 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash 122745366, now seen corresponding path program 1 times [2021-11-25 20:19:13,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:13,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268552456] [2021-11-25 20:19:13,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:13,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:19:14,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:14,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268552456] [2021-11-25 20:19:14,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268552456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:14,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:14,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:14,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119520118] [2021-11-25 20:19:14,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:14,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:14,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:14,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:14,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:14,817 INFO L87 Difference]: Start difference. First operand 3909 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:16,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:22,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:22,110 INFO L93 Difference]: Finished difference Result 9401 states and 14366 transitions. [2021-11-25 20:19:22,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:22,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1069 [2021-11-25 20:19:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:22,173 INFO L225 Difference]: With dead ends: 9401 [2021-11-25 20:19:22,173 INFO L226 Difference]: Without dead ends: 5701 [2021-11-25 20:19:22,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:22,200 INFO L933 BasicCegarLoop]: 3331 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:22,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 6102 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 20:19:22,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2021-11-25 20:19:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 5682. [2021-11-25 20:19:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 3814 states have (on average 1.401415836392239) internal successors, (5345), 3908 states have internal predecessors, (5345), 1667 states have call successors, (1667), 199 states have call predecessors, (1667), 198 states have return successors, (1663), 1658 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-25 20:19:22,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 8675 transitions. [2021-11-25 20:19:22,729 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 8675 transitions. Word has length 1069 [2021-11-25 20:19:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:22,732 INFO L470 AbstractCegarLoop]: Abstraction has 5682 states and 8675 transitions. [2021-11-25 20:19:22,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 8675 transitions. [2021-11-25 20:19:22,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2021-11-25 20:19:22,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:22,750 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:22,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:19:22,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash -131291127, now seen corresponding path program 1 times [2021-11-25 20:19:22,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:22,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982727332] [2021-11-25 20:19:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:22,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:19:24,069 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:24,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982727332] [2021-11-25 20:19:24,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982727332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:24,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:24,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:24,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205170594] [2021-11-25 20:19:24,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:24,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:24,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:24,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:24,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:24,077 INFO L87 Difference]: Start difference. First operand 5682 states and 8675 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:26,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:31,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:31,333 INFO L93 Difference]: Finished difference Result 14726 states and 22480 transitions. [2021-11-25 20:19:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:31,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1071 [2021-11-25 20:19:31,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:31,427 INFO L225 Difference]: With dead ends: 14726 [2021-11-25 20:19:31,427 INFO L226 Difference]: Without dead ends: 9253 [2021-11-25 20:19:31,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:31,479 INFO L933 BasicCegarLoop]: 3372 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6145 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:31,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6145 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 820 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-25 20:19:31,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2021-11-25 20:19:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 9234. [2021-11-25 20:19:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9234 states, 6220 states have (on average 1.4041800643086817) internal successors, (8734), 6380 states have internal predecessors, (8734), 2677 states have call successors, (2677), 335 states have call predecessors, (2677), 334 states have return successors, (2673), 2658 states have call predecessors, (2673), 2673 states have call successors, (2673) [2021-11-25 20:19:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9234 states to 9234 states and 14084 transitions. [2021-11-25 20:19:32,038 INFO L78 Accepts]: Start accepts. Automaton has 9234 states and 14084 transitions. Word has length 1071 [2021-11-25 20:19:32,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:32,040 INFO L470 AbstractCegarLoop]: Abstraction has 9234 states and 14084 transitions. [2021-11-25 20:19:32,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 9234 states and 14084 transitions. [2021-11-25 20:19:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2021-11-25 20:19:32,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:32,058 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:32,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:19:32,058 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:32,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1476955601, now seen corresponding path program 1 times [2021-11-25 20:19:32,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:32,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740144083] [2021-11-25 20:19:32,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:32,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:19:33,272 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:33,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740144083] [2021-11-25 20:19:33,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740144083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:33,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:33,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:33,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29666845] [2021-11-25 20:19:33,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:33,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:33,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:33,278 INFO L87 Difference]: Start difference. First operand 9234 states and 14084 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:35,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:40,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:40,368 INFO L93 Difference]: Finished difference Result 25326 states and 38623 transitions. [2021-11-25 20:19:40,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:40,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1070 [2021-11-25 20:19:40,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:40,501 INFO L225 Difference]: With dead ends: 25326 [2021-11-25 20:19:40,502 INFO L226 Difference]: Without dead ends: 16301 [2021-11-25 20:19:40,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:40,557 INFO L933 BasicCegarLoop]: 3419 mSDtfsCounter, 2783 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:40,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2783 Valid, 6190 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 832 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 20:19:40,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16301 states. [2021-11-25 20:19:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16301 to 16282. [2021-11-25 20:19:41,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 10992 states have (on average 1.4055676855895196) internal successors, (15450), 11284 states have internal predecessors, (15450), 4681 states have call successors, (4681), 607 states have call predecessors, (4681), 606 states have return successors, (4677), 4642 states have call predecessors, (4677), 4677 states have call successors, (4677) [2021-11-25 20:19:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 24808 transitions. [2021-11-25 20:19:41,527 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 24808 transitions. Word has length 1070 [2021-11-25 20:19:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:41,529 INFO L470 AbstractCegarLoop]: Abstraction has 16282 states and 24808 transitions. [2021-11-25 20:19:41,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 24808 transitions. [2021-11-25 20:19:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2021-11-25 20:19:41,545 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:41,546 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:41,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:19:41,547 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:41,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1016460577, now seen corresponding path program 1 times [2021-11-25 20:19:41,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:41,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845156393] [2021-11-25 20:19:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:41,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:19:42,738 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:42,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845156393] [2021-11-25 20:19:42,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845156393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:42,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:42,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:42,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542226119] [2021-11-25 20:19:42,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:42,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:42,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:42,745 INFO L87 Difference]: Start difference. First operand 16282 states and 24808 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:44,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:19:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:19:49,927 INFO L93 Difference]: Finished difference Result 46326 states and 70569 transitions. [2021-11-25 20:19:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:19:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1072 [2021-11-25 20:19:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:19:50,084 INFO L225 Difference]: With dead ends: 46326 [2021-11-25 20:19:50,085 INFO L226 Difference]: Without dead ends: 30253 [2021-11-25 20:19:50,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:50,155 INFO L933 BasicCegarLoop]: 3480 mSDtfsCounter, 2781 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:19:50,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2781 Valid, 6251 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 855 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-25 20:19:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30253 states. [2021-11-25 20:19:51,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30253 to 30234. [2021-11-25 20:19:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30234 states, 20440 states have (on average 1.405675146771037) internal successors, (28732), 20996 states have internal predecessors, (28732), 8641 states have call successors, (8641), 1151 states have call predecessors, (8641), 1150 states have return successors, (8637), 8562 states have call predecessors, (8637), 8637 states have call successors, (8637) [2021-11-25 20:19:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30234 states to 30234 states and 46010 transitions. [2021-11-25 20:19:51,922 INFO L78 Accepts]: Start accepts. Automaton has 30234 states and 46010 transitions. Word has length 1072 [2021-11-25 20:19:51,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:19:51,924 INFO L470 AbstractCegarLoop]: Abstraction has 30234 states and 46010 transitions. [2021-11-25 20:19:51,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 30234 states and 46010 transitions. [2021-11-25 20:19:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2021-11-25 20:19:51,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:19:51,942 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:19:51,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:19:51,942 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:19:51,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:19:51,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1738565183, now seen corresponding path program 1 times [2021-11-25 20:19:51,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:19:51,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471162153] [2021-11-25 20:19:51,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:19:51,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:19:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:19:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:19:53,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:19:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471162153] [2021-11-25 20:19:53,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471162153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:19:53,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:19:53,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:19:53,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278744450] [2021-11-25 20:19:53,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:19:53,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:19:53,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:19:53,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:19:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:19:53,127 INFO L87 Difference]: Start difference. First operand 30234 states and 46010 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:19:55,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:01,453 INFO L93 Difference]: Finished difference Result 87897 states and 133726 transitions. [2021-11-25 20:20:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1073 [2021-11-25 20:20:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:01,758 INFO L225 Difference]: With dead ends: 87897 [2021-11-25 20:20:01,758 INFO L226 Difference]: Without dead ends: 57872 [2021-11-25 20:20:01,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:01,895 INFO L933 BasicCegarLoop]: 3531 mSDtfsCounter, 2785 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:01,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2785 Valid, 6304 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 868 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-25 20:20:01,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57872 states. [2021-11-25 20:20:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57872 to 57853. [2021-11-25 20:20:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57853 states, 39163 states have (on average 1.4051783571227945) internal successors, (55031), 40247 states have internal predecessors, (55031), 16449 states have call successors, (16449), 2239 states have call predecessors, (16449), 2238 states have return successors, (16445), 16290 states have call predecessors, (16445), 16445 states have call successors, (16445) [2021-11-25 20:20:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57853 states to 57853 states and 87925 transitions. [2021-11-25 20:20:05,405 INFO L78 Accepts]: Start accepts. Automaton has 57853 states and 87925 transitions. Word has length 1073 [2021-11-25 20:20:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 57853 states and 87925 transitions. [2021-11-25 20:20:05,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:20:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 57853 states and 87925 transitions. [2021-11-25 20:20:05,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1075 [2021-11-25 20:20:05,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:05,425 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:05,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:20:05,425 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:20:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1970604995, now seen corresponding path program 1 times [2021-11-25 20:20:05,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:05,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169860057] [2021-11-25 20:20:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:05,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:20:06,939 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:06,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169860057] [2021-11-25 20:20:06,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169860057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:06,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:06,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:06,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447802879] [2021-11-25 20:20:06,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:06,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:06,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:06,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:06,943 INFO L87 Difference]: Start difference. First operand 57853 states and 87925 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:20:09,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:16,585 INFO L93 Difference]: Finished difference Result 169002 states and 256832 transitions. [2021-11-25 20:20:16,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:16,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1074 [2021-11-25 20:20:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:17,391 INFO L225 Difference]: With dead ends: 169002 [2021-11-25 20:20:17,391 INFO L226 Difference]: Without dead ends: 111358 [2021-11-25 20:20:17,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:17,622 INFO L933 BasicCegarLoop]: 3709 mSDtfsCounter, 2784 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6482 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:17,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2784 Valid, 6482 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-25 20:20:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111358 states. [2021-11-25 20:20:21,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111358 to 111339. [2021-11-25 20:20:21,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111339 states, 75379 states have (on average 1.4040249936985103) internal successors, (105834), 77519 states have internal predecessors, (105834), 31603 states have call successors, (31603), 4355 states have call predecessors, (31603), 4354 states have return successors, (31599), 31284 states have call predecessors, (31599), 31599 states have call successors, (31599) [2021-11-25 20:20:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111339 states to 111339 states and 169036 transitions. [2021-11-25 20:20:22,894 INFO L78 Accepts]: Start accepts. Automaton has 111339 states and 169036 transitions. Word has length 1074 [2021-11-25 20:20:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:22,896 INFO L470 AbstractCegarLoop]: Abstraction has 111339 states and 169036 transitions. [2021-11-25 20:20:22,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:20:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 111339 states and 169036 transitions. [2021-11-25 20:20:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2021-11-25 20:20:22,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:22,919 INFO L514 BasicCegarLoop]: trace histogram [105, 104, 104, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:22,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:20:22,920 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-25 20:20:22,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1489232741, now seen corresponding path program 1 times [2021-11-25 20:20:22,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:22,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459041566] [2021-11-25 20:20:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:22,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43056 trivial. 0 not checked. [2021-11-25 20:20:24,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:24,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459041566] [2021-11-25 20:20:24,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459041566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:24,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:24,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:24,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422917806] [2021-11-25 20:20:24,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:24,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:24,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:24,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:24,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:24,238 INFO L87 Difference]: Start difference. First operand 111339 states and 169036 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) [2021-11-25 20:20:26,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:37,285 INFO L93 Difference]: Finished difference Result 329016 states and 499277 transitions. [2021-11-25 20:20:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (107), 3 states have call predecessors, (107), 3 states have call successors, (107) Word has length 1075 [2021-11-25 20:20:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:38,530 INFO L225 Difference]: With dead ends: 329016 [2021-11-25 20:20:38,531 INFO L226 Difference]: Without dead ends: 217886 [2021-11-25 20:20:39,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:39,442 INFO L933 BasicCegarLoop]: 3762 mSDtfsCounter, 2778 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 6533 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:39,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2778 Valid, 6533 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 916 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 20:20:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217886 states.