./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-radio-radio-si476x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba --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 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:14:32,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:14:32,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:14:32,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:14:32,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:14:32,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:14:32,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:14:32,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:14:32,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:14:32,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:14:32,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:14:32,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:14:32,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:14:32,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:14:32,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:14:32,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:14:32,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:14:32,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:14:32,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:14:32,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:14:32,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:14:32,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:14:32,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:14:32,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:14:32,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:14:32,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:14:32,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:14:32,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:14:32,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:14:32,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:14:32,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:14:32,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:14:32,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:14:32,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:14:32,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:14:32,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:14:32,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:14:32,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:14:32,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:14:32,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:14:32,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:14:32,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:14:32,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:14:32,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:14:32,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:14:32,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:14:32,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:14:32,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:14:32,987 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:14:32,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:14:32,988 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:14:32,988 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:14:32,989 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:14:32,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:14:32,989 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:14:32,989 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:14:32,990 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:14:32,990 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:14:32,990 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:14:32,990 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:14:32,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:14:32,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:14:32,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:14:32,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:14:32,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:14:32,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:14:32,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:14:32,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:14:32,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:14:32,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:14:32,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:14:32,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:32,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:14:32,995 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:14:32,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:14:32,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:14:32,995 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:14:32,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:14:32,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:14:32,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:14:32,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c72fad0f4736d2d4eb53bca18880400af0864c4b127cd0e90e1329def3f1884 [2022-11-22 00:14:33,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:14:33,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:14:33,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:14:33,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:14:33,395 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:14:33,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-22 00:14:36,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:14:37,560 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:14:37,561 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-22 00:14:37,617 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/data/bab3676de/c3b0523d7eef4264b7df07fc094c8500/FLAG679e51c2c [2022-11-22 00:14:37,632 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/data/bab3676de/c3b0523d7eef4264b7df07fc094c8500 [2022-11-22 00:14:37,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:14:37,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:14:37,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:37,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:14:37,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:14:37,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:37" (1/1) ... [2022-11-22 00:14:37,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217cbaee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:37, skipping insertion in model container [2022-11-22 00:14:37,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:37" (1/1) ... [2022-11-22 00:14:37,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:14:37,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:14:40,922 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2022-11-22 00:14:40,926 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2022-11-22 00:14:40,927 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2022-11-22 00:14:40,927 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2022-11-22 00:14:40,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:41,017 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:14:41,494 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379788,379801] [2022-11-22 00:14:41,495 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[379954,379967] [2022-11-22 00:14:41,496 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380118,380131] [2022-11-22 00:14:41,497 WARN L237 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_b8f718ee-c237-422d-875c-dab178ab0ac3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i[380283,380296] [2022-11-22 00:14:41,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:41,765 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:14:41,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41 WrapperNode [2022-11-22 00:14:41,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:41,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:41,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:14:41,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:14:41,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:41,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,190 INFO L138 Inliner]: procedures = 413, calls = 2523, calls flagged for inlining = 243, calls inlined = 230, statements flattened = 7147 [2022-11-22 00:14:42,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:42,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:14:42,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:14:42,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:14:42,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,543 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:14:42,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:14:42,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:14:42,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:14:42,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (1/1) ... [2022-11-22 00:14:42,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:42,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:42,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:14:42,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f718ee-c237-422d-875c-dab178ab0ac3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:14:42,701 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_diversity [2022-11-22 00:14:42,701 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_diversity [2022-11-22 00:14:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:14:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:14:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_acf_status [2022-11-22 00:14:42,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:14:42,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:14:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_ctrl [2022-11-22 00:14:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_ctrl [2022-11-22 00:14:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:14:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:14:42,703 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_probe [2022-11-22 00:14:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_probe [2022-11-22 00:14:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_acf_status [2022-11-22 00:14:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_div_status [2022-11-22 00:14:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:14:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:14:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-22 00:14:42,705 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-22 00:14:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:14:42,707 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:14:42,707 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_lock [2022-11-22 00:14:42,707 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_lock [2022-11-22 00:14:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:14:42,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:14:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 00:14:42,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 00:14:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_acf_blob [2022-11-22 00:14:42,709 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_acf_blob [2022-11-22 00:14:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:14:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rsq_status [2022-11-22 00:14:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:14:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-22 00:14:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-22 00:14:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:14:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:14:42,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:14:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_remove [2022-11-22 00:14:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_remove [2022-11-22 00:14:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:14:42,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:14:42,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:14:42,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:14:42,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:14:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-22 00:14:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-22 00:14:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_has_am [2022-11-22 00:14:42,713 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_has_am [2022-11-22 00:14:42,713 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_read [2022-11-22 00:14:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_read [2022-11-22 00:14:42,714 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-22 00:14:42,714 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-22 00:14:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_tuner [2022-11-22 00:14:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_tuner [2022-11-22 00:14:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_change_func [2022-11-22 00:14:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_change_func [2022-11-22 00:14:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_frequency [2022-11-22 00:14:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_frequency [2022-11-22 00:14:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:14:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 00:14:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 00:14:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 00:14:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 00:14:42,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 00:14:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 00:14:42,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-22 00:14:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-22 00:14:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-22 00:14:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-22 00:14:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2022-11-22 00:14:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2022-11-22 00:14:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:14:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_to_v4l2 [2022-11-22 00:14:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_to_v4l2 [2022-11-22 00:14:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_querycap [2022-11-22 00:14:42,721 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_querycap [2022-11-22 00:14:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:14:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:14:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:14:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:14:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 00:14:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:14:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:14:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_register [2022-11-22 00:14:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_register [2022-11-22 00:14:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2022-11-22 00:14:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_lock_of_si476x_core [2022-11-22 00:14:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_seek_start [2022-11-22 00:14:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_agc_status [2022-11-22 00:14:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_frequency [2022-11-22 00:14:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_frequency [2022-11-22 00:14:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-22 00:14:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-22 00:14:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_open [2022-11-22 00:14:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_open [2022-11-22 00:14:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:14:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:14:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_add_new_custom [2022-11-22 00:14:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_add_new_custom [2022-11-22 00:14:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 00:14:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 00:14:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:14:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:14:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:14:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:14:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_tune_freq [2022-11-22 00:14:42,733 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_read [2022-11-22 00:14:42,733 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_read [2022-11-22 00:14:42,733 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_in_am_receiver_mode [2022-11-22 00:14:42,734 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_in_am_receiver_mode [2022-11-22 00:14:42,734 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_to_radio [2022-11-22 00:14:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_to_radio [2022-11-22 00:14:42,735 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:14:42,736 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:14:42,741 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rds_blckcnt_blob [2022-11-22 00:14:42,741 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rds_blckcnt_blob [2022-11-22 00:14:42,741 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_update_bits [2022-11-22 00:14:42,742 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_update_bits [2022-11-22 00:14:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_enum_freq_bands [2022-11-22 00:14:42,742 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_enum_freq_bands [2022-11-22 00:14:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-22 00:14:42,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-22 00:14:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-22 00:14:42,743 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-22 00:14:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:14:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_rds_blockcount [2022-11-22 00:14:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_register [2022-11-22 00:14:42,743 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_register [2022-11-22 00:14:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:14:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_phase_diversity [2022-11-22 00:14:42,744 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_cmd_fm_phase_diversity [2022-11-22 00:14:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:14:42,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 00:14:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:14:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_to_si476x [2022-11-22 00:14:42,745 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_to_si476x [2022-11-22 00:14:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_do_post_powerup_init [2022-11-22 00:14:42,745 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_do_post_powerup_init [2022-11-22 00:14:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure regmap_write [2022-11-22 00:14:42,745 INFO L138 BoogieDeclarations]: Found implementation of procedure regmap_write [2022-11-22 00:14:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_seek_start [2022-11-22 00:14:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2022-11-22 00:14:42,746 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2022-11-22 00:14:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:14:42,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:14:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-22 00:14:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-11-22 00:14:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_blob [2022-11-22 00:14:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_blob [2022-11-22 00:14:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_range_is_inside_of_the_band [2022-11-22 00:14:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_range_is_inside_of_the_band [2022-11-22 00:14:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:14:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 00:14:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_set_power_state [2022-11-22 00:14:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_set_power_state [2022-11-22 00:14:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_cache_only [2022-11-22 00:14:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_cache_only [2022-11-22 00:14:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:14:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 00:14:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-22 00:14:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-22 00:14:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_release [2022-11-22 00:14:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_release [2022-11-22 00:14:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:14:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_s_hw_freq_seek [2022-11-22 00:14:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_s_hw_freq_seek [2022-11-22 00:14:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_rsq_primary_blob [2022-11-22 00:14:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_rsq_primary_blob [2022-11-22 00:14:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_read_agc_blob [2022-11-22 00:14:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_read_agc_blob [2022-11-22 00:14:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:14:42,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:14:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std_menu [2022-11-22 00:14:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std_menu [2022-11-22 00:14:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_tuner [2022-11-22 00:14:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_tuner [2022-11-22 00:14:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_stop [2022-11-22 00:14:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_stop [2022-11-22 00:14:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_fops_poll [2022-11-22 00:14:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_fops_poll [2022-11-22 00:14:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_fm_tune_freq [2022-11-22 00:14:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2022-11-22 00:14:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_si476x_radio_driver_exit_17_2 [2022-11-22 00:14:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_is_a_secondary_tuner [2022-11-22 00:14:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_is_a_secondary_tuner [2022-11-22 00:14:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-22 00:14:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-22 00:14:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-22 00:14:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-22 00:14:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_is_singular_file [2022-11-22 00:14:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_is_singular_file [2022-11-22 00:14:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:14:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:14:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_unlock [2022-11-22 00:14:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_core_unlock [2022-11-22 00:14:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_fh_release [2022-11-22 00:14:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_fh_release [2022-11-22 00:14:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:14:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-22 00:14:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure simple_open [2022-11-22 00:14:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_open [2022-11-22 00:14:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_radio_g_volatile_ctrl [2022-11-22 00:14:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure si476x_radio_g_volatile_ctrl [2022-11-22 00:14:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:14:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure regcache_sync_region [2022-11-22 00:14:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure regcache_sync_region [2022-11-22 00:14:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure si476x_core_cmd_am_rsq_status [2022-11-22 00:14:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:14:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:14:44,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:14:44,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:14:44,522 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:14:51,865 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 00:14:52,092 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:14:53,718 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:14:53,718 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:14:53,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:14:53 BoogieIcfgContainer [2022-11-22 00:14:53,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:14:53,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:14:53,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:14:53,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:14:53,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:14:37" (1/3) ... [2022-11-22 00:14:53,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62018bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:14:53, skipping insertion in model container [2022-11-22 00:14:53,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:41" (2/3) ... [2022-11-22 00:14:53,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62018bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:14:53, skipping insertion in model container [2022-11-22 00:14:53,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:14:53" (3/3) ... [2022-11-22 00:14:53,736 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-si476x.cil.i [2022-11-22 00:14:53,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:14:53,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:14:53,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:14:53,882 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4377728c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:14:53,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:14:53,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 2090 states, 1293 states have (on average 1.3549883990719258) internal successors, (1752), 1296 states have internal predecessors, (1752), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) [2022-11-22 00:14:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2022-11-22 00:14:53,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:53,963 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 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] [2022-11-22 00:14:53,964 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:14:53,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:53,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1053862128, now seen corresponding path program 1 times [2022-11-22 00:14:53,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:53,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394521674] [2022-11-22 00:14:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 19463 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19463 trivial. 0 not checked. [2022-11-22 00:14:55,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:55,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394521674] [2022-11-22 00:14:55,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394521674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:55,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:55,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:14:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615711932] [2022-11-22 00:14:55,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:55,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:14:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:14:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:56,057 INFO L87 Difference]: Start difference. First operand has 2090 states, 1293 states have (on average 1.3549883990719258) internal successors, (1752), 1296 states have internal predecessors, (1752), 704 states have call successors, (704), 91 states have call predecessors, (704), 90 states have return successors, (693), 693 states have call predecessors, (693), 693 states have call successors, (693) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-22 00:14:58,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:00,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:03,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:03,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:03,968 INFO L93 Difference]: Finished difference Result 5894 states and 9123 transitions. [2022-11-22 00:15:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 724 [2022-11-22 00:15:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:04,028 INFO L225 Difference]: With dead ends: 5894 [2022-11-22 00:15:04,028 INFO L226 Difference]: Without dead ends: 3930 [2022-11-22 00:15:04,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:04,050 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 2838 mSDsluCounter, 2662 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 5963 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:04,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 5963 Invalid, 906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 891 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-22 00:15:04,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2022-11-22 00:15:04,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3926. [2022-11-22 00:15:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3926 states, 2462 states have (on average 1.3570268074735987) internal successors, (3341), 2467 states have internal predecessors, (3341), 1285 states have call successors, (1285), 177 states have call predecessors, (1285), 176 states have return successors, (1283), 1281 states have call predecessors, (1283), 1281 states have call successors, (1283) [2022-11-22 00:15:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3926 states to 3926 states and 5909 transitions. [2022-11-22 00:15:04,453 INFO L78 Accepts]: Start accepts. Automaton has 3926 states and 5909 transitions. Word has length 724 [2022-11-22 00:15:04,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:04,456 INFO L495 AbstractCegarLoop]: Abstraction has 3926 states and 5909 transitions. [2022-11-22 00:15:04,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-22 00:15:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3926 states and 5909 transitions. [2022-11-22 00:15:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2022-11-22 00:15:04,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:04,484 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:04,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:15:04,485 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:04,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:04,486 INFO L85 PathProgramCache]: Analyzing trace with hash 733149271, now seen corresponding path program 1 times [2022-11-22 00:15:04,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:04,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042896919] [2022-11-22 00:15:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:04,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:05,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2022-11-22 00:15:05,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:05,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042896919] [2022-11-22 00:15:05,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042896919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:05,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:05,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:05,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100994849] [2022-11-22 00:15:05,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:05,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:05,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:05,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:05,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:05,891 INFO L87 Difference]: Start difference. First operand 3926 states and 5909 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-22 00:15:08,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:10,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:12,081 INFO L93 Difference]: Finished difference Result 9611 states and 14468 transitions. [2022-11-22 00:15:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:12,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 732 [2022-11-22 00:15:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:12,130 INFO L225 Difference]: With dead ends: 9611 [2022-11-22 00:15:12,130 INFO L226 Difference]: Without dead ends: 5826 [2022-11-22 00:15:12,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:12,156 INFO L413 NwaCegarLoop]: 3301 mSDtfsCounter, 2850 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 5969 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:12,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 5969 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 871 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 00:15:12,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5826 states. [2022-11-22 00:15:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5826 to 5801. [2022-11-22 00:15:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5801 states, 3642 states have (on average 1.3588687534321802) internal successors, (4949), 3652 states have internal predecessors, (4949), 1891 states have call successors, (1891), 266 states have call predecessors, (1891), 265 states have return successors, (1891), 1882 states have call predecessors, (1891), 1887 states have call successors, (1891) [2022-11-22 00:15:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5801 states to 5801 states and 8731 transitions. [2022-11-22 00:15:12,700 INFO L78 Accepts]: Start accepts. Automaton has 5801 states and 8731 transitions. Word has length 732 [2022-11-22 00:15:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:12,703 INFO L495 AbstractCegarLoop]: Abstraction has 5801 states and 8731 transitions. [2022-11-22 00:15:12,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-22 00:15:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5801 states and 8731 transitions. [2022-11-22 00:15:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2022-11-22 00:15:12,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:12,734 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:12,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:15:12,735 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:12,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:12,747 INFO L85 PathProgramCache]: Analyzing trace with hash 252953113, now seen corresponding path program 1 times [2022-11-22 00:15:12,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:12,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442839800] [2022-11-22 00:15:12,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:12,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19460 trivial. 0 not checked. [2022-11-22 00:15:13,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:13,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442839800] [2022-11-22 00:15:13,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442839800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:13,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:13,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510572971] [2022-11-22 00:15:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:13,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:13,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:13,762 INFO L87 Difference]: Start difference. First operand 5801 states and 8731 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-22 00:15:16,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:18,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:20,181 INFO L93 Difference]: Finished difference Result 16527 states and 24896 transitions. [2022-11-22 00:15:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 741 [2022-11-22 00:15:20,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:20,261 INFO L225 Difference]: With dead ends: 16527 [2022-11-22 00:15:20,261 INFO L226 Difference]: Without dead ends: 10867 [2022-11-22 00:15:20,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:20,300 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 2670 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2672 SdHoareTripleChecker+Valid, 6002 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:20,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2672 Valid, 6002 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 969 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 00:15:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2022-11-22 00:15:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 10837. [2022-11-22 00:15:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10837 states, 6784 states have (on average 1.3512676886792452) internal successors, (9167), 6808 states have internal predecessors, (9167), 3541 states have call successors, (3541), 510 states have call predecessors, (3541), 509 states have return successors, (3549), 3518 states have call predecessors, (3549), 3537 states have call successors, (3549) [2022-11-22 00:15:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10837 states to 10837 states and 16257 transitions. [2022-11-22 00:15:21,181 INFO L78 Accepts]: Start accepts. Automaton has 10837 states and 16257 transitions. Word has length 741 [2022-11-22 00:15:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:21,183 INFO L495 AbstractCegarLoop]: Abstraction has 10837 states and 16257 transitions. [2022-11-22 00:15:21,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2022-11-22 00:15:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 10837 states and 16257 transitions. [2022-11-22 00:15:21,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2022-11-22 00:15:21,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:21,201 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:21,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:15:21,202 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:21,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:21,204 INFO L85 PathProgramCache]: Analyzing trace with hash 902358994, now seen corresponding path program 1 times [2022-11-22 00:15:21,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:21,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249075685] [2022-11-22 00:15:21,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-22 00:15:22,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:22,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249075685] [2022-11-22 00:15:22,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249075685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:22,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:22,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:22,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915772492] [2022-11-22 00:15:22,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:22,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:22,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:22,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:22,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:22,061 INFO L87 Difference]: Start difference. First operand 10837 states and 16257 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-22 00:15:25,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:27,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:29,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:31,304 INFO L93 Difference]: Finished difference Result 28460 states and 42645 transitions. [2022-11-22 00:15:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:31,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 751 [2022-11-22 00:15:31,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:31,430 INFO L225 Difference]: With dead ends: 28460 [2022-11-22 00:15:31,430 INFO L226 Difference]: Without dead ends: 17764 [2022-11-22 00:15:31,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:31,493 INFO L413 NwaCegarLoop]: 3491 mSDtfsCounter, 2780 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:31,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 6148 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 903 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-22 00:15:31,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17764 states. [2022-11-22 00:15:32,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17764 to 17737. [2022-11-22 00:15:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17737 states, 11078 states have (on average 1.3473551182523922) internal successors, (14926), 11131 states have internal predecessors, (14926), 5801 states have call successors, (5801), 855 states have call predecessors, (5801), 855 states have return successors, (5814), 5750 states have call predecessors, (5814), 5797 states have call successors, (5814) [2022-11-22 00:15:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17737 states to 17737 states and 26541 transitions. [2022-11-22 00:15:32,660 INFO L78 Accepts]: Start accepts. Automaton has 17737 states and 26541 transitions. Word has length 751 [2022-11-22 00:15:32,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:32,661 INFO L495 AbstractCegarLoop]: Abstraction has 17737 states and 26541 transitions. [2022-11-22 00:15:32,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-22 00:15:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 17737 states and 26541 transitions. [2022-11-22 00:15:32,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-11-22 00:15:32,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:32,676 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:32,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:15:32,677 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:32,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2113614225, now seen corresponding path program 1 times [2022-11-22 00:15:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:32,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733936172] [2022-11-22 00:15:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:32,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2022-11-22 00:15:33,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:33,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733936172] [2022-11-22 00:15:33,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733936172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:33,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:33,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:33,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085223265] [2022-11-22 00:15:33,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:33,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:33,482 INFO L87 Difference]: Start difference. First operand 17737 states and 26541 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 00:15:37,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:39,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:40,127 INFO L93 Difference]: Finished difference Result 49060 states and 73383 transitions. [2022-11-22 00:15:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:40,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 765 [2022-11-22 00:15:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:40,324 INFO L225 Difference]: With dead ends: 49060 [2022-11-22 00:15:40,325 INFO L226 Difference]: Without dead ends: 31464 [2022-11-22 00:15:40,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:40,399 INFO L413 NwaCegarLoop]: 3351 mSDtfsCounter, 2782 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:40,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 6003 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 900 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 00:15:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31464 states. [2022-11-22 00:15:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31464 to 31425. [2022-11-22 00:15:42,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31425 states, 19700 states have (on average 1.3473096446700508) internal successors, (26542), 19817 states have internal predecessors, (26542), 10169 states have call successors, (10169), 1553 states have call predecessors, (10169), 1553 states have return successors, (10198), 10054 states have call predecessors, (10198), 10165 states have call successors, (10198) [2022-11-22 00:15:42,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31425 states to 31425 states and 46909 transitions. [2022-11-22 00:15:42,783 INFO L78 Accepts]: Start accepts. Automaton has 31425 states and 46909 transitions. Word has length 765 [2022-11-22 00:15:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:42,784 INFO L495 AbstractCegarLoop]: Abstraction has 31425 states and 46909 transitions. [2022-11-22 00:15:42,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 00:15:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 31425 states and 46909 transitions. [2022-11-22 00:15:42,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2022-11-22 00:15:42,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:42,800 INFO L195 NwaCegarLoop]: trace histogram [71, 70, 70, 70, 70, 70, 70, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:42,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:15:42,800 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 318663133, now seen corresponding path program 1 times [2022-11-22 00:15:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:42,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317749540] [2022-11-22 00:15:42,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:42,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:43,699 INFO L134 CoverageAnalysis]: Checked inductivity of 19487 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19487 trivial. 0 not checked. [2022-11-22 00:15:43,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:43,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317749540] [2022-11-22 00:15:43,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317749540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:43,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:43,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604643399] [2022-11-22 00:15:43,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:43,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:43,703 INFO L87 Difference]: Start difference. First operand 31425 states and 46909 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 00:15:47,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:49,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:51,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:15:53,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:53,102 INFO L93 Difference]: Finished difference Result 89796 states and 134000 transitions. [2022-11-22 00:15:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:15:53,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 766 [2022-11-22 00:15:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:53,552 INFO L225 Difference]: With dead ends: 89796 [2022-11-22 00:15:53,552 INFO L226 Difference]: Without dead ends: 58512 [2022-11-22 00:15:53,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:53,678 INFO L413 NwaCegarLoop]: 3370 mSDtfsCounter, 2783 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:53,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 6022 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 909 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-22 00:15:53,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58512 states. [2022-11-22 00:15:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58512 to 58477. [2022-11-22 00:15:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58477 states, 36788 states have (on average 1.3465804066543439) internal successors, (49538), 37033 states have internal predecessors, (49538), 18737 states have call successors, (18737), 2949 states have call predecessors, (18737), 2949 states have return successors, (18811), 18494 states have call predecessors, (18811), 18733 states have call successors, (18811) [2022-11-22 00:15:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58477 states to 58477 states and 87086 transitions. [2022-11-22 00:15:57,856 INFO L78 Accepts]: Start accepts. Automaton has 58477 states and 87086 transitions. Word has length 766 [2022-11-22 00:15:57,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:57,858 INFO L495 AbstractCegarLoop]: Abstraction has 58477 states and 87086 transitions. [2022-11-22 00:15:57,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2022-11-22 00:15:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 58477 states and 87086 transitions. [2022-11-22 00:15:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-11-22 00:15:57,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:57,872 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:57,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:15:57,873 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:15:57,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:57,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1898388181, now seen corresponding path program 1 times [2022-11-22 00:15:57,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:57,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130503184] [2022-11-22 00:15:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:57,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-22 00:15:58,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:58,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130503184] [2022-11-22 00:15:58,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130503184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:58,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:58,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:58,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463503407] [2022-11-22 00:15:58,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:58,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:15:58,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:58,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:15:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:15:58,969 INFO L87 Difference]: Start difference. First operand 58477 states and 87086 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 00:16:03,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:05,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:08,765 INFO L93 Difference]: Finished difference Result 170416 states and 253693 transitions. [2022-11-22 00:16:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:16:08,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 760 [2022-11-22 00:16:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:09,433 INFO L225 Difference]: With dead ends: 170416 [2022-11-22 00:16:09,434 INFO L226 Difference]: Without dead ends: 112080 [2022-11-22 00:16:09,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:16:09,670 INFO L413 NwaCegarLoop]: 3302 mSDtfsCounter, 2785 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2787 SdHoareTripleChecker+Valid, 5956 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:09,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2787 Valid, 5956 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 892 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-11-22 00:16:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112080 states. [2022-11-22 00:16:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112080 to 111989. [2022-11-22 00:16:15,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111989 states, 70662 states have (on average 1.3452492145707735) internal successors, (95058), 71211 states have internal predecessors, (95058), 35583 states have call successors, (35583), 5741 states have call predecessors, (35583), 5741 states have return successors, (35737), 35036 states have call predecessors, (35737), 35579 states have call successors, (35737) [2022-11-22 00:16:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111989 states to 111989 states and 166378 transitions. [2022-11-22 00:16:16,234 INFO L78 Accepts]: Start accepts. Automaton has 111989 states and 166378 transitions. Word has length 760 [2022-11-22 00:16:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:16,235 INFO L495 AbstractCegarLoop]: Abstraction has 111989 states and 166378 transitions. [2022-11-22 00:16:16,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 00:16:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 111989 states and 166378 transitions. [2022-11-22 00:16:16,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2022-11-22 00:16:16,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:16,250 INFO L195 NwaCegarLoop]: trace histogram [72, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:16,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:16:16,250 INFO L420 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:16:16,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:16,251 INFO L85 PathProgramCache]: Analyzing trace with hash 575538055, now seen corresponding path program 1 times [2022-11-22 00:16:16,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:16,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606903296] [2022-11-22 00:16:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:16,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20022 trivial. 0 not checked. [2022-11-22 00:16:17,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:17,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606903296] [2022-11-22 00:16:17,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606903296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:17,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:16:17,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:16:17,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159393310] [2022-11-22 00:16:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:17,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:16:17,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:16:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:16:17,468 INFO L87 Difference]: Start difference. First operand 111989 states and 166378 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2022-11-22 00:16:21,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:23,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:26,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:28,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:16:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:34,996 INFO L93 Difference]: Finished difference Result 329516 states and 489307 transitions. [2022-11-22 00:16:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:16:34,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 763 [2022-11-22 00:16:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:36,183 INFO L225 Difference]: With dead ends: 329516 [2022-11-22 00:16:36,183 INFO L226 Difference]: Without dead ends: 217668 [2022-11-22 00:16:36,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:16:36,535 INFO L413 NwaCegarLoop]: 3336 mSDtfsCounter, 2785 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 5990 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:36,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 5990 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 907 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-22 00:16:36,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217668 states.