./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:35:58,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:35:58,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:35:58,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:35:58,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:35:58,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:35:59,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:35:59,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:35:59,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:35:59,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:35:59,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:35:59,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:35:59,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:35:59,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:35:59,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:35:59,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:35:59,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:35:59,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:35:59,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:35:59,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:35:59,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:35:59,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:35:59,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:35:59,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:35:59,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:35:59,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:35:59,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:35:59,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:35:59,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:35:59,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:35:59,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:35:59,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:35:59,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:35:59,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:35:59,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:35:59,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:35:59,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:35:59,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:35:59,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:35:59,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:35:59,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:35:59,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:35:59,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:35:59,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:35:59,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:35:59,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:35:59,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:35:59,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:35:59,101 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:35:59,101 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:35:59,102 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:35:59,102 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:35:59,102 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:35:59,102 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:35:59,103 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:35:59,103 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:35:59,103 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:35:59,103 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:35:59,104 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:35:59,104 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:35:59,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:35:59,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:35:59,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:35:59,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:35:59,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:35:59,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:35:59,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:35:59,106 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:35:59,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:35:59,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:35:59,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:35:59,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:35:59,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:35:59,108 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:35:59,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:35:59,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:35:59,108 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:35:59,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:35:59,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:35:59,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:35:59,109 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_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59473e3c2ae80c2e7996950da3475e9070fa07527cbe1064da7145ffd0ce24e6 [2022-11-03 03:35:59,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:35:59,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:35:59,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:35:59,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:35:59,428 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:35:59,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2022-11-03 03:35:59,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/data/8f0c7822a/f055a6b175904406a5082128eca11720/FLAG732c3a0d5 [2022-11-03 03:36:00,521 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:36:00,523 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2022-11-03 03:36:00,572 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/data/8f0c7822a/f055a6b175904406a5082128eca11720/FLAG732c3a0d5 [2022-11-03 03:36:00,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/data/8f0c7822a/f055a6b175904406a5082128eca11720 [2022-11-03 03:36:00,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:36:00,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:36:00,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:00,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:36:00,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:36:00,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:00" (1/1) ... [2022-11-03 03:36:00,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ad479b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:00, skipping insertion in model container [2022-11-03 03:36:00,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:36:00" (1/1) ... [2022-11-03 03:36:00,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:36:01,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:36:03,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2022-11-03 03:36:03,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2022-11-03 03:36:03,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2022-11-03 03:36:03,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2022-11-03 03:36:03,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:03,874 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:36:04,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[358872,358885] [2022-11-03 03:36:04,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359038,359051] [2022-11-03 03:36:04,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359202,359215] [2022-11-03 03:36:04,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i[359367,359380] [2022-11-03 03:36:04,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:36:04,724 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:36:04,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04 WrapperNode [2022-11-03 03:36:04,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:36:04,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:04,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:36:04,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:36:04,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:04,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,018 INFO L138 Inliner]: procedures = 258, calls = 1714, calls flagged for inlining = 142, calls inlined = 128, statements flattened = 3710 [2022-11-03 03:36:05,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:36:05,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:36:05,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:36:05,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:36:05,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:36:05,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:36:05,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:36:05,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:36:05,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (1/1) ... [2022-11-03 03:36:05,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:36:05,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:36:05,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:36:05,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2161e801-59c0-4ffc-8bc7-4c7d4d2209ad/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:36:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_i2c_xfer [2022-11-03 03:36:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_i2c_xfer [2022-11-03 03:36:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_exit [2022-11-03 03:36:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_exit [2022-11-03 03:36:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_mt352_frontend_attach_vp7049 [2022-11-03 03:36:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_mt352_frontend_attach_vp7049 [2022-11-03 03:36:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_m920x_driver_exit_10_2 [2022-11-03 03:36:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_m920x_driver_exit_10_2 [2022-11-03 03:36:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:36:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:36:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:36:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usb_device_init [2022-11-03 03:36:05,358 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usb_device_init [2022-11-03 03:36:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:36:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:36:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:36:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_mt2060_tuner_attach [2022-11-03 03:36:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_mt2060_tuner_attach [2022-11-03 03:36:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_tda8275_61_tuner_attach [2022-11-03 03:36:05,359 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_tda8275_61_tuner_attach [2022-11-03 03:36:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2022-11-03 03:36:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2022-11-03 03:36:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2022-11-03 03:36:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2022-11-03 03:36:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:36:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_update_filters [2022-11-03 03:36:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_update_filters [2022-11-03 03:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_write_seq [2022-11-03 03:36:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_write_seq [2022-11-03 03:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_tda8275_60_tuner_attach [2022-11-03 03:36:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_tda8275_60_tuner_attach [2022-11-03 03:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-11-03 03:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-11-03 03:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_pid_filter_ctrl [2022-11-03 03:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_pid_filter_ctrl [2022-11-03 03:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 03:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 03:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_probe [2022-11-03 03:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_probe [2022-11-03 03:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_rc_query [2022-11-03 03:36:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_rc_query [2022-11-03 03:36:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure mt352_write [2022-11-03 03:36:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure mt352_write [2022-11-03 03:36:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:36:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:36:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:36:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:36:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:36:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 03:36:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-03 03:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_parse_rc_state [2022-11-03 03:36:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_parse_rc_state [2022-11-03 03:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_firmware_download [2022-11-03 03:36:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_firmware_download [2022-11-03 03:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:36:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_pid_filter [2022-11-03 03:36:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_pid_filter [2022-11-03 03:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:36:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:36:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:36:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 03:36:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 03:36:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:36:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_tda10046_0b_frontend_attach [2022-11-03 03:36:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_tda10046_0b_frontend_attach [2022-11-03 03:36:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:36:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:36:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:36:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 03:36:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-03 03:36:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_mt352_frontend_attach [2022-11-03 03:36:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_mt352_frontend_attach [2022-11-03 03:36:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 03:36:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-11-03 03:36:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 03:36:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 03:36:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:36:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:36:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 03:36:05,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-03 03:36:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:36:05,375 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_tda10046_08_frontend_attach [2022-11-03 03:36:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_tda10046_08_frontend_attach [2022-11-03 03:36:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_qt1010_tuner_attach [2022-11-03 03:36:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_qt1010_tuner_attach [2022-11-03 03:36:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_mt352_demod_init [2022-11-03 03:36:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_mt352_demod_init [2022-11-03 03:36:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:36:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_write [2022-11-03 03:36:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_write [2022-11-03 03:36:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:36:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:36:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_fmd1216me_tuner_attach [2022-11-03 03:36:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_fmd1216me_tuner_attach [2022-11-03 03:36:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:36:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:36:05,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:36:05,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:36:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:36:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:36:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-03 03:36:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-03 03:36:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2022-11-03 03:36:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2022-11-03 03:36:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:36:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:36:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_set_filter [2022-11-03 03:36:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_set_filter [2022-11-03 03:36:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_identify_state [2022-11-03 03:36:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_identify_state [2022-11-03 03:36:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:36:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:36:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:36:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_i2c_func [2022-11-03 03:36:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_i2c_func [2022-11-03 03:36:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:36:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:36:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure m920x_read [2022-11-03 03:36:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure m920x_read [2022-11-03 03:36:06,394 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:36:06,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:36:09,408 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:41:06,655 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:41:06,785 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:41:10,206 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:41:10,206 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:41:10,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:10 BoogieIcfgContainer [2022-11-03 03:41:10,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:41:10,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:41:10,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:41:10,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:41:10,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:36:00" (1/3) ... [2022-11-03 03:41:10,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4205b704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:10, skipping insertion in model container [2022-11-03 03:41:10,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:36:04" (2/3) ... [2022-11-03 03:41:10,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4205b704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:41:10, skipping insertion in model container [2022-11-03 03:41:10,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:41:10" (3/3) ... [2022-11-03 03:41:10,229 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-usb-dvb-usb-dvb-usb-m920x.cil.i [2022-11-03 03:41:10,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:41:10,257 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-03 03:41:10,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:41:10,377 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;@44b516cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:41:10,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-03 03:41:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 1031 states, 658 states have (on average 1.378419452887538) internal successors, (907), 670 states have internal predecessors, (907), 317 states have call successors, (317), 54 states have call predecessors, (317), 53 states have return successors, (311), 311 states have call predecessors, (311), 311 states have call successors, (311) [2022-11-03 03:41:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2022-11-03 03:41:10,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:10,444 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:10,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:41:10,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash 971355088, now seen corresponding path program 1 times [2022-11-03 03:41:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:10,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357322511] [2022-11-03 03:41:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:10,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:41:14,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:14,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357322511] [2022-11-03 03:41:14,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357322511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:14,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:14,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325385041] [2022-11-03 03:41:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:14,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:14,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:14,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:14,332 INFO L87 Difference]: Start difference. First operand has 1031 states, 658 states have (on average 1.378419452887538) internal successors, (907), 670 states have internal predecessors, (907), 317 states have call successors, (317), 54 states have call predecessors, (317), 53 states have return successors, (311), 311 states have call predecessors, (311), 311 states have call successors, (311) Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:16,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:18,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:20,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:22,204 INFO L93 Difference]: Finished difference Result 2854 states and 4318 transitions. [2022-11-03 03:41:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:22,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 562 [2022-11-03 03:41:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:22,278 INFO L225 Difference]: With dead ends: 2854 [2022-11-03 03:41:22,278 INFO L226 Difference]: Without dead ends: 1917 [2022-11-03 03:41:22,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:22,298 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1341 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:22,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 2857 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 03:41:22,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-11-03 03:41:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1898. [2022-11-03 03:41:22,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1234 states have (on average 1.3849270664505673) internal successors, (1709), 1262 states have internal predecessors, (1709), 558 states have call successors, (558), 104 states have call predecessors, (558), 103 states have return successors, (554), 549 states have call predecessors, (554), 554 states have call successors, (554) [2022-11-03 03:41:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2821 transitions. [2022-11-03 03:41:22,602 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2821 transitions. Word has length 562 [2022-11-03 03:41:22,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:22,610 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2821 transitions. [2022-11-03 03:41:22,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2821 transitions. [2022-11-03 03:41:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-11-03 03:41:22,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:22,638 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 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] [2022-11-03 03:41:22,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:41:22,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:41:22,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash 931884965, now seen corresponding path program 1 times [2022-11-03 03:41:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:22,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901544750] [2022-11-03 03:41:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:22,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 11559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11559 trivial. 0 not checked. [2022-11-03 03:41:24,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:24,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901544750] [2022-11-03 03:41:24,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901544750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:24,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:24,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:24,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025321104] [2022-11-03 03:41:24,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:24,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:24,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:24,608 INFO L87 Difference]: Start difference. First operand 1898 states and 2821 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 03:41:26,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:29,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:31,676 INFO L93 Difference]: Finished difference Result 4516 states and 6701 transitions. [2022-11-03 03:41:31,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:31,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 564 [2022-11-03 03:41:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:31,703 INFO L225 Difference]: With dead ends: 4516 [2022-11-03 03:41:31,703 INFO L226 Difference]: Without dead ends: 2727 [2022-11-03 03:41:31,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:31,718 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1224 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:31,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 2787 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-03 03:41:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2727 states. [2022-11-03 03:41:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2727 to 2722. [2022-11-03 03:41:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2722 states, 1787 states have (on average 1.387241186345831) internal successors, (2479), 1824 states have internal predecessors, (2479), 778 states have call successors, (778), 155 states have call predecessors, (778), 154 states have return successors, (774), 769 states have call predecessors, (774), 774 states have call successors, (774) [2022-11-03 03:41:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 4031 transitions. [2022-11-03 03:41:31,903 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 4031 transitions. Word has length 564 [2022-11-03 03:41:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:31,910 INFO L495 AbstractCegarLoop]: Abstraction has 2722 states and 4031 transitions. [2022-11-03 03:41:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-03 03:41:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 4031 transitions. [2022-11-03 03:41:31,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-11-03 03:41:31,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:31,940 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:31,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:41:31,944 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:41:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2014304652, now seen corresponding path program 1 times [2022-11-03 03:41:31,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:31,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707306386] [2022-11-03 03:41:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:41:33,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:33,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707306386] [2022-11-03 03:41:33,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707306386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:33,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:33,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:33,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407767822] [2022-11-03 03:41:33,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:33,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:33,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:33,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:33,490 INFO L87 Difference]: Start difference. First operand 2722 states and 4031 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:35,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:37,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:40,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:41,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:41,458 INFO L93 Difference]: Finished difference Result 7019 states and 10373 transitions. [2022-11-03 03:41:41,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:41,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 564 [2022-11-03 03:41:41,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:41,504 INFO L225 Difference]: With dead ends: 7019 [2022-11-03 03:41:41,504 INFO L226 Difference]: Without dead ends: 4406 [2022-11-03 03:41:41,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:41,525 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1263 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:41,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2784 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 03:41:41,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4406 states. [2022-11-03 03:41:41,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4406 to 4385. [2022-11-03 03:41:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4385 states, 2894 states have (on average 1.389426399447132) internal successors, (4021), 2961 states have internal predecessors, (4021), 1226 states have call successors, (1226), 263 states have call predecessors, (1226), 262 states have return successors, (1222), 1205 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-03 03:41:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 6469 transitions. [2022-11-03 03:41:41,814 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 6469 transitions. Word has length 564 [2022-11-03 03:41:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:41,817 INFO L495 AbstractCegarLoop]: Abstraction has 4385 states and 6469 transitions. [2022-11-03 03:41:41,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:41,818 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 6469 transitions. [2022-11-03 03:41:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-11-03 03:41:41,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:41,835 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:41,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:41:41,836 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:41:41,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:41,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1756681372, now seen corresponding path program 1 times [2022-11-03 03:41:41,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:41,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969059617] [2022-11-03 03:41:41,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:41,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:41:43,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:43,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969059617] [2022-11-03 03:41:43,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969059617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:43,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:43,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:43,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634236194] [2022-11-03 03:41:43,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:43,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:43,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:43,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:43,234 INFO L87 Difference]: Start difference. First operand 4385 states and 6469 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:45,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:47,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:50,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:51,638 INFO L93 Difference]: Finished difference Result 11937 states and 17581 transitions. [2022-11-03 03:41:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:41:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 565 [2022-11-03 03:41:51,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:51,700 INFO L225 Difference]: With dead ends: 11937 [2022-11-03 03:41:51,701 INFO L226 Difference]: Without dead ends: 7661 [2022-11-03 03:41:51,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:51,727 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 1253 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:51,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 2883 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-03 03:41:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-11-03 03:41:52,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7640. [2022-11-03 03:41:52,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7640 states, 5059 states have (on average 1.3901956908479938) internal successors, (7033), 5186 states have internal predecessors, (7033), 2100 states have call successors, (2100), 479 states have call predecessors, (2100), 478 states have return successors, (2096), 2055 states have call predecessors, (2096), 2096 states have call successors, (2096) [2022-11-03 03:41:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 11229 transitions. [2022-11-03 03:41:52,254 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 11229 transitions. Word has length 565 [2022-11-03 03:41:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:52,256 INFO L495 AbstractCegarLoop]: Abstraction has 7640 states and 11229 transitions. [2022-11-03 03:41:52,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:52,257 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 11229 transitions. [2022-11-03 03:41:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-11-03 03:41:52,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:52,274 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:52,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:41:52,275 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:41:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash 246650699, now seen corresponding path program 1 times [2022-11-03 03:41:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:52,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692352022] [2022-11-03 03:41:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:41:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:41:53,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:53,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692352022] [2022-11-03 03:41:53,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692352022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:41:53,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:41:53,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:41:53,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133108721] [2022-11-03 03:41:53,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:41:53,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:41:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:41:53,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:41:53,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:41:53,561 INFO L87 Difference]: Start difference. First operand 7640 states and 11229 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:41:55,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:41:57,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:00,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:01,884 INFO L93 Difference]: Finished difference Result 21615 states and 31722 transitions. [2022-11-03 03:42:01,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:01,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 566 [2022-11-03 03:42:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:02,003 INFO L225 Difference]: With dead ends: 21615 [2022-11-03 03:42:02,004 INFO L226 Difference]: Without dead ends: 14084 [2022-11-03 03:42:02,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:02,059 INFO L413 NwaCegarLoop]: 1674 mSDtfsCounter, 1261 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 2933 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:02,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1261 Valid, 2933 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 03:42:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14084 states. [2022-11-03 03:42:03,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14084 to 14063. [2022-11-03 03:42:03,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14063 states, 9347 states have (on average 1.389536749759281) internal successors, (12988), 9594 states have internal predecessors, (12988), 3803 states have call successors, (3803), 911 states have call predecessors, (3803), 910 states have return successors, (3799), 3710 states have call predecessors, (3799), 3799 states have call successors, (3799) [2022-11-03 03:42:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 20590 transitions. [2022-11-03 03:42:03,136 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 20590 transitions. Word has length 566 [2022-11-03 03:42:03,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:03,137 INFO L495 AbstractCegarLoop]: Abstraction has 14063 states and 20590 transitions. [2022-11-03 03:42:03,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 20590 transitions. [2022-11-03 03:42:03,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 568 [2022-11-03 03:42:03,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:03,146 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:03,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:42:03,146 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:42:03,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 912091683, now seen corresponding path program 1 times [2022-11-03 03:42:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:03,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048159981] [2022-11-03 03:42:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:42:04,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:04,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048159981] [2022-11-03 03:42:04,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048159981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:04,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:04,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:04,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888256765] [2022-11-03 03:42:04,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:04,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:04,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:04,529 INFO L87 Difference]: Start difference. First operand 14063 states and 20590 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:06,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:08,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:12,647 INFO L93 Difference]: Finished difference Result 40580 states and 59314 transitions. [2022-11-03 03:42:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:12,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 567 [2022-11-03 03:42:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:12,815 INFO L225 Difference]: With dead ends: 40580 [2022-11-03 03:42:12,815 INFO L226 Difference]: Without dead ends: 26626 [2022-11-03 03:42:12,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:12,897 INFO L413 NwaCegarLoop]: 1711 mSDtfsCounter, 1258 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:12,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 2970 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 03:42:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26626 states. [2022-11-03 03:42:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26626 to 26605. [2022-11-03 03:42:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26605 states, 17738 states have (on average 1.3871349644830309) internal successors, (24605), 18225 states have internal predecessors, (24605), 7090 states have call successors, (7090), 1775 states have call predecessors, (7090), 1774 states have return successors, (7086), 6901 states have call predecessors, (7086), 7086 states have call successors, (7086) [2022-11-03 03:42:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26605 states to 26605 states and 38781 transitions. [2022-11-03 03:42:14,652 INFO L78 Accepts]: Start accepts. Automaton has 26605 states and 38781 transitions. Word has length 567 [2022-11-03 03:42:14,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:14,652 INFO L495 AbstractCegarLoop]: Abstraction has 26605 states and 38781 transitions. [2022-11-03 03:42:14,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:14,653 INFO L276 IsEmpty]: Start isEmpty. Operand 26605 states and 38781 transitions. [2022-11-03 03:42:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2022-11-03 03:42:14,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:14,660 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:14,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:42:14,661 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:42:14,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2144407415, now seen corresponding path program 1 times [2022-11-03 03:42:14,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:14,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907731776] [2022-11-03 03:42:14,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:42:16,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:16,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907731776] [2022-11-03 03:42:16,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907731776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:16,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:16,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:16,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445821773] [2022-11-03 03:42:16,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:16,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:16,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:16,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:16,050 INFO L87 Difference]: Start difference. First operand 26605 states and 38781 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:18,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:20,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:22,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:25,488 INFO L93 Difference]: Finished difference Result 77223 states and 112383 transitions. [2022-11-03 03:42:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:25,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 568 [2022-11-03 03:42:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:25,814 INFO L225 Difference]: With dead ends: 77223 [2022-11-03 03:42:25,814 INFO L226 Difference]: Without dead ends: 50727 [2022-11-03 03:42:25,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:25,919 INFO L413 NwaCegarLoop]: 1871 mSDtfsCounter, 1259 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:25,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3130 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 585 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 03:42:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50727 states. [2022-11-03 03:42:29,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50727 to 50706. [2022-11-03 03:42:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50706 states, 33915 states have (on average 1.3841957835765886) internal successors, (46945), 34879 states have internal predecessors, (46945), 13319 states have call successors, (13319), 3470 states have call predecessors, (13319), 3469 states have return successors, (13315), 12938 states have call predecessors, (13315), 13315 states have call successors, (13315) [2022-11-03 03:42:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50706 states to 50706 states and 73579 transitions. [2022-11-03 03:42:29,855 INFO L78 Accepts]: Start accepts. Automaton has 50706 states and 73579 transitions. Word has length 568 [2022-11-03 03:42:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:29,857 INFO L495 AbstractCegarLoop]: Abstraction has 50706 states and 73579 transitions. [2022-11-03 03:42:29,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:29,857 INFO L276 IsEmpty]: Start isEmpty. Operand 50706 states and 73579 transitions. [2022-11-03 03:42:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2022-11-03 03:42:29,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:29,865 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:29,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:42:29,866 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:42:29,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:29,867 INFO L85 PathProgramCache]: Analyzing trace with hash -534735878, now seen corresponding path program 1 times [2022-11-03 03:42:29,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:29,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411618885] [2022-11-03 03:42:29,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:29,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:32,293 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11556 trivial. 0 not checked. [2022-11-03 03:42:32,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:32,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411618885] [2022-11-03 03:42:32,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411618885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:32,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:32,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:42:32,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231840807] [2022-11-03 03:42:32,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:32,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:42:32,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:42:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:32,296 INFO L87 Difference]: Start difference. First operand 50706 states and 73579 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:34,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:36,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:38,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:40,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:42:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:45,745 INFO L93 Difference]: Finished difference Result 138244 states and 200358 transitions. [2022-11-03 03:42:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:42:45,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 583 [2022-11-03 03:42:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:46,569 INFO L225 Difference]: With dead ends: 138244 [2022-11-03 03:42:46,570 INFO L226 Difference]: Without dead ends: 87647 [2022-11-03 03:42:46,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:42:46,772 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 1164 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:46,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1164 Valid, 3003 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2022-11-03 03:42:46,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87647 states. [2022-11-03 03:42:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87647 to 87500. [2022-11-03 03:42:52,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87500 states, 58807 states have (on average 1.3789514853673883) internal successors, (81092), 60623 states have internal predecessors, (81092), 22496 states have call successors, (22496), 6195 states have call predecessors, (22496), 6194 states have return successors, (22492), 21605 states have call predecessors, (22492), 22492 states have call successors, (22492) [2022-11-03 03:42:52,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87500 states to 87500 states and 126080 transitions. [2022-11-03 03:42:52,652 INFO L78 Accepts]: Start accepts. Automaton has 87500 states and 126080 transitions. Word has length 583 [2022-11-03 03:42:52,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:52,653 INFO L495 AbstractCegarLoop]: Abstraction has 87500 states and 126080 transitions. [2022-11-03 03:42:52,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-11-03 03:42:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 87500 states and 126080 transitions. [2022-11-03 03:42:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-11-03 03:42:52,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:52,663 INFO L195 NwaCegarLoop]: trace histogram [58, 54, 54, 54, 54, 54, 54, 5, 5, 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] [2022-11-03 03:42:52,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 03:42:52,664 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-03 03:42:52,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:52,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1667950649, now seen corresponding path program 1 times [2022-11-03 03:42:52,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:52,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622564442] [2022-11-03 03:42:52,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:52,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 11926 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11926 trivial. 0 not checked. [2022-11-03 03:42:58,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:58,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622564442] [2022-11-03 03:42:58,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622564442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:42:58,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:42:58,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:42:58,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038062084] [2022-11-03 03:42:58,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:42:58,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:42:58,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:58,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:42:58,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:42:58,017 INFO L87 Difference]: Start difference. First operand 87500 states and 126080 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-03 03:43:00,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:03,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:43:12,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:12,423 INFO L93 Difference]: Finished difference Result 171354 states and 249506 transitions. [2022-11-03 03:43:12,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:43:12,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 608 [2022-11-03 03:43:12,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:13,842 INFO L225 Difference]: With dead ends: 171354 [2022-11-03 03:43:13,842 INFO L226 Difference]: Without dead ends: 171352 [2022-11-03 03:43:13,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:43:13,920 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 1350 mSDsluCounter, 4967 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 5853 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:13,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 5853 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 937 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-11-03 03:43:14,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171352 states.