./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0 --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 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add --- 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-e04fb08 [2022-11-16 19:31:24,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:31:24,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:31:24,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:31:24,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:31:24,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:31:24,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:31:24,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:31:24,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:31:24,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:31:24,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:31:24,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:31:24,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:31:24,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:31:24,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:31:24,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:31:24,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:31:24,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:31:24,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:31:24,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:31:24,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:31:24,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:31:24,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:31:24,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:31:24,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:31:24,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:31:24,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:31:24,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:31:24,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:31:24,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:31:24,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:31:24,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:31:24,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:31:24,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:31:24,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:31:24,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:31:24,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:31:24,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:31:24,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:31:24,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:31:24,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:31:24,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:31:24,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:31:24,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:31:24,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:31:24,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:31:24,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:31:24,988 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:31:24,988 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:31:24,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:31:24,989 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:31:24,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:31:24,990 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:31:24,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:31:24,991 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:31:24,991 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:31:24,991 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:31:24,992 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:31:24,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:31:24,992 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:31:24,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:31:24,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:31:25,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:31:25,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:31:25,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:31:25,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:31:25,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:31:25,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:31:25,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:31:25,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:31:25,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:31:25,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:25,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:31:25,010 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:31:25,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:31:25,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:31:25,010 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:31:25,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:31:25,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:31:25,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:31:25,012 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_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39ee2ab624432b04c82409208cb55ec81e2dd2f34a0a1ec3852f07ecbac05add [2022-11-16 19:31:25,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:31:25,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:31:25,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:31:25,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:31:25,446 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:31:25,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:31:25,532 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/data/0b0c6bb89/f96734980fb446ef951c4916061d649b/FLAG4e0a2648c [2022-11-16 19:31:27,102 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:31:27,104 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:31:27,212 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/data/0b0c6bb89/f96734980fb446ef951c4916061d649b/FLAG4e0a2648c [2022-11-16 19:31:27,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/data/0b0c6bb89/f96734980fb446ef951c4916061d649b [2022-11-16 19:31:27,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:31:27,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:31:27,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:27,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:31:27,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:31:27,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:27" (1/1) ... [2022-11-16 19:31:27,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27447474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:27, skipping insertion in model container [2022-11-16 19:31:27,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:27" (1/1) ... [2022-11-16 19:31:27,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:31:27,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:31:37,783 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-16 19:31:37,786 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-16 19:31:37,786 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-16 19:31:37,787 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-16 19:31:37,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:37,877 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:31:38,904 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904444,904457] [2022-11-16 19:31:38,905 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904610,904623] [2022-11-16 19:31:38,906 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904774,904787] [2022-11-16 19:31:38,910 WARN L229 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_ece1a037-b45b-4946-881e-fb71c70c6a82/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i[904939,904952] [2022-11-16 19:31:38,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:39,386 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:31:39,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39 WrapperNode [2022-11-16 19:31:39,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:39,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:39,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:31:39,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:31:39,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:39,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:40,920 INFO L138 Inliner]: procedures = 730, calls = 16236, calls flagged for inlining = 402, calls inlined = 349, statements flattened = 29243 [2022-11-16 19:31:40,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:40,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:31:40,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:31:40,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:31:40,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:40,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:41,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:41,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:41,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:41,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:41,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:42,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:42,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:31:42,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:31:42,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:31:42,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:31:42,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (1/1) ... [2022-11-16 19:31:42,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:42,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:31:42,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:31:42,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:31:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 19:31:42,329 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 19:31:42,329 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-16 19:31:42,329 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-16 19:31:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-16 19:31:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-16 19:31:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-16 19:31:42,330 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-16 19:31:42,330 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-16 19:31:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-16 19:31:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-16 19:31:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-16 19:31:42,331 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 19:31:42,331 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 19:31:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 19:31:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 19:31:42,332 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-16 19:31:42,332 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-16 19:31:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-16 19:31:42,333 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-16 19:31:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 19:31:42,333 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 19:31:42,333 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 19:31:42,333 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 19:31:42,334 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-16 19:31:42,334 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-16 19:31:42,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 19:31:42,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 19:31:42,335 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-16 19:31:42,335 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-16 19:31:42,336 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-16 19:31:42,336 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-16 19:31:42,337 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-16 19:31:42,337 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-16 19:31:42,337 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-16 19:31:42,337 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-16 19:31:42,337 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-16 19:31:42,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-16 19:31:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-16 19:31:42,338 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-16 19:31:42,338 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-16 19:31:42,339 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-16 19:31:42,340 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-16 19:31:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-16 19:31:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-16 19:31:42,341 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-16 19:31:42,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-16 19:31:42,342 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-16 19:31:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 19:31:42,342 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 19:31:42,342 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-16 19:31:42,342 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-16 19:31:42,343 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-16 19:31:42,343 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-16 19:31:42,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-16 19:31:42,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-16 19:31:42,344 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-16 19:31:42,344 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-16 19:31:42,344 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-16 19:31:42,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-16 19:31:42,345 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 19:31:42,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 19:31:42,345 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-16 19:31:42,345 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-16 19:31:42,346 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-16 19:31:42,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-16 19:31:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-16 19:31:42,347 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-16 19:31:42,347 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-16 19:31:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-16 19:31:42,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-16 19:31:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-16 19:31:42,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 19:31:42,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-16 19:31:42,349 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 19:31:42,349 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 19:31:42,350 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-16 19:31:42,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-16 19:31:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-16 19:31:42,351 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-16 19:31:42,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-16 19:31:42,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-16 19:31:42,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-16 19:31:42,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-16 19:31:42,353 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 19:31:42,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 19:31:42,354 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-16 19:31:42,354 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-16 19:31:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:31:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-16 19:31:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-16 19:31:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-16 19:31:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-16 19:31:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-16 19:31:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-16 19:31:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-16 19:31:42,356 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-16 19:31:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-16 19:31:42,357 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-16 19:31:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-16 19:31:42,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-16 19:31:42,357 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-16 19:31:42,358 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-16 19:31:42,359 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 19:31:42,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 19:31:42,363 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-16 19:31:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-16 19:31:42,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-16 19:31:42,365 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-16 19:31:42,365 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-16 19:31:42,366 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-16 19:31:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 19:31:42,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 19:31:42,368 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-16 19:31:42,373 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-16 19:31:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-16 19:31:42,374 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-16 19:31:42,374 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-16 19:31:42,374 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-16 19:31:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 19:31:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-16 19:31:42,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-16 19:31:42,375 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-16 19:31:42,375 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-16 19:31:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-16 19:31:42,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-16 19:31:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-16 19:31:42,376 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-16 19:31:42,376 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-16 19:31:42,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-16 19:31:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-16 19:31:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-16 19:31:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 19:31:42,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-16 19:31:42,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-16 19:31:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-16 19:31:42,378 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-16 19:31:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 19:31:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-16 19:31:42,378 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-16 19:31:42,378 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-16 19:31:42,379 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-16 19:31:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-16 19:31:42,379 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-16 19:31:42,379 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-16 19:31:42,379 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-16 19:31:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 19:31:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 19:31:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-16 19:31:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-16 19:31:42,380 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-16 19:31:42,380 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-16 19:31:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-16 19:31:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-16 19:31:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-16 19:31:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-16 19:31:42,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-16 19:31:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-16 19:31:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-16 19:31:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-16 19:31:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-16 19:31:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-16 19:31:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-16 19:31:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-16 19:31:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-16 19:31:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-16 19:31:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-16 19:31:42,383 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-16 19:31:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-16 19:31:42,384 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-16 19:31:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-16 19:31:42,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-16 19:31:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-16 19:31:42,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-16 19:31:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-16 19:31:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-16 19:31:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-16 19:31:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-16 19:31:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-16 19:31:42,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-16 19:31:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-16 19:31:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-16 19:31:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:31:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-16 19:31:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-16 19:31:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-16 19:31:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-16 19:31:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-16 19:31:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-16 19:31:42,387 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-16 19:31:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-16 19:31:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:31:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-16 19:31:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-16 19:31:42,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 19:31:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 19:31:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 19:31:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 19:31:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:31:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-16 19:31:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-16 19:31:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 19:31:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-16 19:31:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-16 19:31:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 19:31:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 19:31:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-16 19:31:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-16 19:31:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-16 19:31:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-16 19:31:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-16 19:31:42,391 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-16 19:31:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-16 19:31:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-16 19:31:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-16 19:31:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-16 19:31:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-16 19:31:42,392 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-16 19:31:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-16 19:31:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-16 19:31:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-16 19:31:42,393 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-16 19:31:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 19:31:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 19:31:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-16 19:31:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-16 19:31:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 19:31:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 19:31:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-16 19:31:42,395 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-16 19:31:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 19:31:42,396 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 19:31:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-16 19:31:42,401 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-16 19:31:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-16 19:31:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-16 19:31:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-16 19:31:42,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-16 19:31:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-16 19:31:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-16 19:31:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-16 19:31:42,403 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-16 19:31:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-16 19:31:42,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-16 19:31:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-16 19:31:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-16 19:31:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-16 19:31:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-16 19:31:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-16 19:31:42,408 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-16 19:31:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-16 19:31:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-16 19:31:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-16 19:31:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-16 19:31:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 19:31:42,409 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 19:31:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-16 19:31:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-16 19:31:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-16 19:31:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-16 19:31:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-16 19:31:42,410 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-16 19:31:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-16 19:31:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-16 19:31:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:31:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:31:42,411 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-16 19:31:42,411 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-16 19:31:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-16 19:31:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-16 19:31:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-16 19:31:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-16 19:31:42,412 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-16 19:31:42,412 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-16 19:31:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-16 19:31:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-16 19:31:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-16 19:31:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-16 19:31:42,413 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-16 19:31:42,413 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-16 19:31:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 19:31:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 19:31:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 19:31:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 19:31:42,414 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-16 19:31:42,414 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-16 19:31:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-16 19:31:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-16 19:31:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-16 19:31:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-16 19:31:42,415 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-16 19:31:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-16 19:31:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-16 19:31:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-16 19:31:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-16 19:31:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-16 19:31:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-16 19:31:42,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-16 19:31:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-16 19:31:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-16 19:31:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-16 19:31:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-16 19:31:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-16 19:31:42,417 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-16 19:31:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-16 19:31:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-16 19:31:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-16 19:31:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 19:31:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 19:31:42,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 19:31:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 19:31:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-16 19:31:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-16 19:31:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-16 19:31:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-16 19:31:42,419 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-16 19:31:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-16 19:31:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-16 19:31:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-16 19:31:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-16 19:31:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-16 19:31:42,420 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-16 19:31:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-16 19:31:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-16 19:31:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-16 19:31:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-16 19:31:42,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-16 19:31:42,421 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-16 19:31:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-16 19:31:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-16 19:31:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-16 19:31:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-16 19:31:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-16 19:31:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-16 19:31:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-16 19:31:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 19:31:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 19:31:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-16 19:31:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-16 19:31:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-16 19:31:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-16 19:31:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:31:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 19:31:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 19:31:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-16 19:31:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-16 19:31:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-16 19:31:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-16 19:31:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-16 19:31:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-16 19:31:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:31:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-16 19:31:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-16 19:31:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-16 19:31:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-16 19:31:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-16 19:31:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-16 19:31:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-16 19:31:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-16 19:31:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-16 19:31:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-16 19:31:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-16 19:31:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-16 19:31:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:31:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-16 19:31:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-16 19:31:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-16 19:31:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-16 19:31:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-16 19:31:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-16 19:31:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-16 19:31:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-16 19:31:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-16 19:31:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-16 19:31:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 19:31:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 19:31:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-16 19:31:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-16 19:31:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 19:31:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 19:31:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-16 19:31:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-16 19:31:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-16 19:31:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-16 19:31:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 19:31:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 19:31:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-16 19:31:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-16 19:31:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-16 19:31:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-16 19:31:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-16 19:31:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-16 19:31:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-16 19:31:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-16 19:31:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-16 19:31:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-16 19:31:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-16 19:31:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-16 19:31:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-16 19:31:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-16 19:31:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-16 19:31:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-16 19:31:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-16 19:31:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-16 19:31:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-16 19:31:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-16 19:31:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-16 19:31:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-16 19:31:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-16 19:31:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-16 19:31:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 19:31:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 19:31:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-16 19:31:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-16 19:31:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-16 19:31:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-16 19:31:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-16 19:31:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-16 19:31:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-16 19:31:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-16 19:31:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-16 19:31:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-16 19:31:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-16 19:31:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-16 19:31:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 19:31:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 19:31:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-16 19:31:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-16 19:31:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-16 19:31:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-16 19:31:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 19:31:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 19:31:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 19:31:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 19:31:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-16 19:31:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-16 19:31:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-16 19:31:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-16 19:31:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:31:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-16 19:31:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-16 19:31:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 19:31:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 19:31:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-16 19:31:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-16 19:31:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-16 19:31:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-16 19:31:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-16 19:31:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-16 19:31:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-16 19:31:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-16 19:31:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-16 19:31:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-16 19:31:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-16 19:31:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-16 19:31:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-16 19:31:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-16 19:31:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-16 19:31:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-16 19:31:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-16 19:31:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-16 19:31:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-16 19:31:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-16 19:31:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-16 19:31:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-16 19:31:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-16 19:31:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-16 19:31:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-16 19:31:42,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-16 19:31:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-16 19:31:42,446 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-16 19:31:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_17 [2022-11-16 19:31:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_17 [2022-11-16 19:31:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-16 19:31:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-16 19:31:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-16 19:31:42,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-16 19:31:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-16 19:31:42,452 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-16 19:31:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-16 19:31:42,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-16 19:31:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 19:31:42,452 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 19:31:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-16 19:31:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-16 19:31:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-16 19:31:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-16 19:31:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-16 19:31:42,453 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-16 19:31:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-16 19:31:42,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-16 19:31:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-16 19:31:42,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-16 19:31:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-16 19:31:42,454 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-16 19:31:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-16 19:31:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-16 19:31:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-16 19:31:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-16 19:31:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-16 19:31:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2022-11-16 19:31:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-16 19:31:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-16 19:31:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-16 19:31:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:31:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-16 19:31:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-16 19:31:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-16 19:31:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-16 19:31:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-16 19:31:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-16 19:31:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-16 19:31:44,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:31:44,888 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:31:46,580 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 19:32:58,525 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-16 19:32:59,094 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:33:14,661 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:33:14,661 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-16 19:33:14,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:33:14 BoogieIcfgContainer [2022-11-16 19:33:14,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:33:14,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:33:14,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:33:14,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:33:14,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:27" (1/3) ... [2022-11-16 19:33:14,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285142d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:33:14, skipping insertion in model container [2022-11-16 19:33:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:39" (2/3) ... [2022-11-16 19:33:14,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285142d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:33:14, skipping insertion in model container [2022-11-16 19:33:14,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:33:14" (3/3) ... [2022-11-16 19:33:14,690 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-16 19:33:14,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:33:14,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:33:14,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:33:14,973 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;@6cddb9bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:33:14,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:33:15,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) [2022-11-16 19:33:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-16 19:33:15,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:33:15,058 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:33:15,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:33:15,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:33:15,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1646825508, now seen corresponding path program 1 times [2022-11-16 19:33:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:33:15,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840055089] [2022-11-16 19:33:15,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:33:15,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:33:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:33:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2022-11-16 19:33:17,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:33:17,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840055089] [2022-11-16 19:33:17,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840055089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:33:17,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:33:17,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:33:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063342916] [2022-11-16 19:33:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:33:17,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:33:17,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:33:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:33:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:33:17,797 INFO L87 Difference]: Start difference. First operand has 6724 states, 4307 states have (on average 1.3420013930810308) internal successors, (5780), 4399 states have internal predecessors, (5780), 2173 states have call successors, (2173), 246 states have call predecessors, (2173), 245 states have return successors, (2167), 2159 states have call predecessors, (2167), 2167 states have call successors, (2167) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 19:33:28,234 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 [] [2022-11-16 19:33:34,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:33:37,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:33:41,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:33:44,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:33:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:33:45,058 INFO L93 Difference]: Finished difference Result 19570 states and 29518 transitions. [2022-11-16 19:33:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:33:45,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 251 [2022-11-16 19:33:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:33:45,254 INFO L225 Difference]: With dead ends: 19570 [2022-11-16 19:33:45,254 INFO L226 Difference]: Without dead ends: 12883 [2022-11-16 19:33:45,342 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 [2022-11-16 19:33:45,347 INFO L413 NwaCegarLoop]: 11304 mSDtfsCounter, 9287 mSDsluCounter, 9175 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9288 SdHoareTripleChecker+Valid, 20479 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:33:45,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9288 Valid, 20479 Invalid, 1803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1791 Invalid, 5 Unknown, 0 Unchecked, 26.0s Time] [2022-11-16 19:33:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2022-11-16 19:33:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12874. [2022-11-16 19:33:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12874 states, 8210 states have (on average 1.3364190012180268) internal successors, (10972), 8391 states have internal predecessors, (10972), 4183 states have call successors, (4183), 481 states have call predecessors, (4183), 480 states have return successors, (4180), 4162 states have call predecessors, (4180), 4179 states have call successors, (4180) [2022-11-16 19:33:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12874 states to 12874 states and 19335 transitions. [2022-11-16 19:33:47,071 INFO L78 Accepts]: Start accepts. Automaton has 12874 states and 19335 transitions. Word has length 251 [2022-11-16 19:33:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:33:47,077 INFO L495 AbstractCegarLoop]: Abstraction has 12874 states and 19335 transitions. [2022-11-16 19:33:47,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-16 19:33:47,079 INFO L276 IsEmpty]: Start isEmpty. Operand 12874 states and 19335 transitions. [2022-11-16 19:33:47,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-16 19:33:47,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:33:47,103 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:33:47,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:33:47,104 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:33:47,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:33:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash -842198900, now seen corresponding path program 1 times [2022-11-16 19:33:47,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:33:47,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178153960] [2022-11-16 19:33:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:33:47,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:33:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:33:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2247 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2022-11-16 19:33:52,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:33:52,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178153960] [2022-11-16 19:33:52,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178153960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:33:52,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:33:52,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:33:52,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851723401] [2022-11-16 19:33:52,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:33:52,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:33:52,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:33:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:33:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:33:52,175 INFO L87 Difference]: Start difference. First operand 12874 states and 19335 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 19:34:01,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:07,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:19,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:22,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:26,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:28,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:34:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:34:31,945 INFO L93 Difference]: Finished difference Result 19114 states and 28684 transitions. [2022-11-16 19:34:31,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:34:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 293 [2022-11-16 19:34:31,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:34:32,258 INFO L225 Difference]: With dead ends: 19114 [2022-11-16 19:34:32,269 INFO L226 Difference]: Without dead ends: 19112 [2022-11-16 19:34:32,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:34:32,289 INFO L413 NwaCegarLoop]: 11241 mSDtfsCounter, 9338 mSDsluCounter, 31601 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9341 SdHoareTripleChecker+Valid, 42842 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.6s IncrementalHoareTripleChecker+Time [2022-11-16 19:34:32,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9341 Valid, 42842 Invalid, 3574 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3567 Invalid, 5 Unknown, 0 Unchecked, 38.6s Time] [2022-11-16 19:34:32,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19112 states. [2022-11-16 19:34:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19112 to 19101. [2022-11-16 19:34:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19101 states, 12153 states have (on average 1.3349790175265366) internal successors, (16224), 12426 states have internal predecessors, (16224), 6225 states have call successors, (6225), 724 states have call predecessors, (6225), 722 states have return successors, (6219), 6191 states have call predecessors, (6219), 6217 states have call successors, (6219) [2022-11-16 19:34:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19101 states to 19101 states and 28668 transitions. [2022-11-16 19:34:34,256 INFO L78 Accepts]: Start accepts. Automaton has 19101 states and 28668 transitions. Word has length 293 [2022-11-16 19:34:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:34:34,258 INFO L495 AbstractCegarLoop]: Abstraction has 19101 states and 28668 transitions. [2022-11-16 19:34:34,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-16 19:34:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 19101 states and 28668 transitions. [2022-11-16 19:34:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-16 19:34:34,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:34:34,273 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:34:34,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:34:34,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:34:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:34:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash -890392344, now seen corresponding path program 1 times [2022-11-16 19:34:34,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:34:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024205953] [2022-11-16 19:34:34,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:34:34,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:34:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:34:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2257 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2255 trivial. 0 not checked. [2022-11-16 19:34:38,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:34:38,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024205953] [2022-11-16 19:34:38,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024205953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:34:38,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:34:38,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:34:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637387930] [2022-11-16 19:34:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:34:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:34:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:34:38,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:34:38,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:34:38,437 INFO L87 Difference]: Start difference. First operand 19101 states and 28668 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-16 19:34:50,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:02,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:05,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:07,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:10,076 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 [] [2022-11-16 19:35:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:35:12,803 INFO L93 Difference]: Finished difference Result 25345 states and 38021 transitions. [2022-11-16 19:35:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:35:12,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 302 [2022-11-16 19:35:12,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:35:13,019 INFO L225 Difference]: With dead ends: 25345 [2022-11-16 19:35:13,020 INFO L226 Difference]: Without dead ends: 25341 [2022-11-16 19:35:13,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:35:13,047 INFO L413 NwaCegarLoop]: 11244 mSDtfsCounter, 9333 mSDsluCounter, 31601 mSDsCounter, 0 mSdLazyCounter, 3571 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9335 SdHoareTripleChecker+Valid, 42845 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3571 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:35:13,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9335 Valid, 42845 Invalid, 3577 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3571 Invalid, 4 Unknown, 0 Unchecked, 33.3s Time] [2022-11-16 19:35:13,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25341 states. [2022-11-16 19:35:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25341 to 25331. [2022-11-16 19:35:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25331 states, 16099 states have (on average 1.3341201316851978) internal successors, (21478), 16462 states have internal predecessors, (21478), 8267 states have call successors, (8267), 968 states have call predecessors, (8267), 964 states have return successors, (8258), 8221 states have call predecessors, (8258), 8255 states have call successors, (8258) [2022-11-16 19:35:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25331 states to 25331 states and 38003 transitions. [2022-11-16 19:35:15,573 INFO L78 Accepts]: Start accepts. Automaton has 25331 states and 38003 transitions. Word has length 302 [2022-11-16 19:35:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:35:15,578 INFO L495 AbstractCegarLoop]: Abstraction has 25331 states and 38003 transitions. [2022-11-16 19:35:15,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-16 19:35:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 25331 states and 38003 transitions. [2022-11-16 19:35:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-16 19:35:15,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:35:15,593 INFO L195 NwaCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:35:15,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 19:35:15,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:35:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:35:15,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1114673139, now seen corresponding path program 1 times [2022-11-16 19:35:15,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:35:15,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682248891] [2022-11-16 19:35:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:35:15,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:35:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:35:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2259 trivial. 0 not checked. [2022-11-16 19:35:19,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:35:19,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682248891] [2022-11-16 19:35:19,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682248891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:35:19,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:35:19,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:35:19,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709578379] [2022-11-16 19:35:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:35:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:35:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:35:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:35:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:35:19,836 INFO L87 Difference]: Start difference. First operand 25331 states and 38003 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-16 19:35:24,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:33,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:43,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:45,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:48,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:50,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:53,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:55,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:57,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:35:59,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:01,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:04,529 INFO L93 Difference]: Finished difference Result 25347 states and 38021 transitions. [2022-11-16 19:36:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:36:04,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 307 [2022-11-16 19:36:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:04,688 INFO L225 Difference]: With dead ends: 25347 [2022-11-16 19:36:04,688 INFO L226 Difference]: Without dead ends: 25308 [2022-11-16 19:36:04,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:36:04,705 INFO L413 NwaCegarLoop]: 11247 mSDtfsCounter, 9333 mSDsluCounter, 31606 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9334 SdHoareTripleChecker+Valid, 42853 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:04,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9334 Valid, 42853 Invalid, 3578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3569 Invalid, 7 Unknown, 0 Unchecked, 43.5s Time] [2022-11-16 19:36:04,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25308 states. [2022-11-16 19:36:06,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25308 to 25298. [2022-11-16 19:36:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25298 states, 16085 states have (on average 1.3341622629779297) internal successors, (21460), 16445 states have internal predecessors, (21460), 8253 states have call successors, (8253), 962 states have call predecessors, (8253), 959 states have return successors, (8248), 8211 states have call predecessors, (8248), 8245 states have call successors, (8248) [2022-11-16 19:36:07,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25298 states to 25298 states and 37961 transitions. [2022-11-16 19:36:07,028 INFO L78 Accepts]: Start accepts. Automaton has 25298 states and 37961 transitions. Word has length 307 [2022-11-16 19:36:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:07,029 INFO L495 AbstractCegarLoop]: Abstraction has 25298 states and 37961 transitions. [2022-11-16 19:36:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-16 19:36:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 25298 states and 37961 transitions. [2022-11-16 19:36:07,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-16 19:36:07,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:07,103 INFO L195 NwaCegarLoop]: trace histogram [25, 23, 23, 23, 23, 23, 23, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 19:36:07,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:07,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1433450273, now seen corresponding path program 1 times [2022-11-16 19:36:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:07,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734573530] [2022-11-16 19:36:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:07,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2172 trivial. 0 not checked. [2022-11-16 19:36:08,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:08,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734573530] [2022-11-16 19:36:08,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734573530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:08,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:08,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:36:08,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108347604] [2022-11-16 19:36:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:08,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:36:08,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:36:08,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:36:08,880 INFO L87 Difference]: Start difference. First operand 25298 states and 37961 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-16 19:36:12,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:16,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:26,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:28,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:30,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:33,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:35,362 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 [] [2022-11-16 19:36:39,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:36:39,165 INFO L93 Difference]: Finished difference Result 44874 states and 67139 transitions. [2022-11-16 19:36:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:36:39,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 414 [2022-11-16 19:36:39,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:36:39,276 INFO L225 Difference]: With dead ends: 44874 [2022-11-16 19:36:39,276 INFO L226 Difference]: Without dead ends: 19623 [2022-11-16 19:36:39,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:36:39,535 INFO L413 NwaCegarLoop]: 12791 mSDtfsCounter, 6415 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6415 SdHoareTripleChecker+Valid, 21883 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:36:39,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6415 Valid, 21883 Invalid, 1999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1987 Invalid, 5 Unknown, 0 Unchecked, 29.2s Time] [2022-11-16 19:36:39,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19623 states. [2022-11-16 19:36:40,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19623 to 19604. [2022-11-16 19:36:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19604 states, 12456 states have (on average 1.3276332691072577) internal successors, (16537), 12708 states have internal predecessors, (16537), 6338 states have call successors, (6338), 811 states have call predecessors, (6338), 809 states have return successors, (6334), 6315 states have call predecessors, (6334), 6334 states have call successors, (6334) [2022-11-16 19:36:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19604 states to 19604 states and 29209 transitions. [2022-11-16 19:36:40,764 INFO L78 Accepts]: Start accepts. Automaton has 19604 states and 29209 transitions. Word has length 414 [2022-11-16 19:36:40,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:36:40,765 INFO L495 AbstractCegarLoop]: Abstraction has 19604 states and 29209 transitions. [2022-11-16 19:36:40,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-16 19:36:40,765 INFO L276 IsEmpty]: Start isEmpty. Operand 19604 states and 29209 transitions. [2022-11-16 19:36:40,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-11-16 19:36:40,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:36:40,925 INFO L195 NwaCegarLoop]: trace histogram [29, 25, 25, 25, 25, 25, 25, 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, 1, 1, 1, 1, 1, 1] [2022-11-16 19:36:40,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 19:36:40,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:36:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:36:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash 29449907, now seen corresponding path program 1 times [2022-11-16 19:36:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:36:40,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398089716] [2022-11-16 19:36:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:36:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:36:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:36:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2647 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2022-11-16 19:36:42,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:36:42,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398089716] [2022-11-16 19:36:42,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398089716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:36:42,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:36:42,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:36:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430359264] [2022-11-16 19:36:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:36:42,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:36:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:36:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:36:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:36:42,520 INFO L87 Difference]: Start difference. First operand 19604 states and 29209 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-16 19:36:46,563 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 [] [2022-11-16 19:36:49,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:36:54,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:02,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:04,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:06,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:08,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:10,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:12,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:15,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:37:15,692 INFO L93 Difference]: Finished difference Result 40898 states and 61018 transitions. [2022-11-16 19:37:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:37:15,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 411 [2022-11-16 19:37:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:37:15,880 INFO L225 Difference]: With dead ends: 40898 [2022-11-16 19:37:15,880 INFO L226 Difference]: Without dead ends: 21359 [2022-11-16 19:37:16,016 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 [2022-11-16 19:37:16,018 INFO L413 NwaCegarLoop]: 16122 mSDtfsCounter, 8539 mSDsluCounter, 9146 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 18 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8540 SdHoareTripleChecker+Valid, 25268 SdHoareTripleChecker+Invalid, 2504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-16 19:37:16,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8540 Valid, 25268 Invalid, 2504 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2482 Invalid, 4 Unknown, 0 Unchecked, 32.2s Time] [2022-11-16 19:37:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21359 states. [2022-11-16 19:37:17,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21359 to 21342. [2022-11-16 19:37:17,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21342 states, 13615 states have (on average 1.3277267719427102) internal successors, (18077), 13899 states have internal predecessors, (18077), 6871 states have call successors, (6871), 859 states have call predecessors, (6871), 855 states have return successors, (6868), 6831 states have call predecessors, (6868), 6867 states have call successors, (6868) [2022-11-16 19:37:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21342 states to 21342 states and 31816 transitions. [2022-11-16 19:37:17,660 INFO L78 Accepts]: Start accepts. Automaton has 21342 states and 31816 transitions. Word has length 411 [2022-11-16 19:37:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:37:17,660 INFO L495 AbstractCegarLoop]: Abstraction has 21342 states and 31816 transitions. [2022-11-16 19:37:17,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-16 19:37:17,661 INFO L276 IsEmpty]: Start isEmpty. Operand 21342 states and 31816 transitions. [2022-11-16 19:37:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-11-16 19:37:17,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:37:17,684 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:37:17,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 19:37:17,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:37:17,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:37:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1538003736, now seen corresponding path program 1 times [2022-11-16 19:37:17,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:37:17,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041423705] [2022-11-16 19:37:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:37:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:37:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:37:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2022-11-16 19:37:19,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:37:19,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041423705] [2022-11-16 19:37:19,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041423705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:37:19,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:37:19,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:37:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280303832] [2022-11-16 19:37:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:37:19,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:37:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:37:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:37:19,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:37:19,400 INFO L87 Difference]: Start difference. First operand 21342 states and 31816 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-11-16 19:37:23,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:34,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:37,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:39,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:42,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:44,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:37:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:37:47,439 INFO L93 Difference]: Finished difference Result 48503 states and 72375 transitions. [2022-11-16 19:37:47,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:37:47,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 458 [2022-11-16 19:37:47,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:37:47,584 INFO L225 Difference]: With dead ends: 48503 [2022-11-16 19:37:47,584 INFO L226 Difference]: Without dead ends: 27302 [2022-11-16 19:37:47,683 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 [2022-11-16 19:37:47,684 INFO L413 NwaCegarLoop]: 16975 mSDtfsCounter, 8532 mSDsluCounter, 9144 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 15 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8533 SdHoareTripleChecker+Valid, 26119 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2022-11-16 19:37:47,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8533 Valid, 26119 Invalid, 2581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2561 Invalid, 5 Unknown, 0 Unchecked, 26.8s Time] [2022-11-16 19:37:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2022-11-16 19:37:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 27284. [2022-11-16 19:37:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27284 states, 17420 states have (on average 1.3272675086107921) internal successors, (23121), 17789 states have internal predecessors, (23121), 8780 states have call successors, (8780), 1089 states have call predecessors, (8780), 1083 states have return successors, (8778), 8720 states have call predecessors, (8778), 8776 states have call successors, (8778) [2022-11-16 19:37:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27284 states to 27284 states and 40679 transitions. [2022-11-16 19:37:49,379 INFO L78 Accepts]: Start accepts. Automaton has 27284 states and 40679 transitions. Word has length 458 [2022-11-16 19:37:49,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:37:49,380 INFO L495 AbstractCegarLoop]: Abstraction has 27284 states and 40679 transitions. [2022-11-16 19:37:49,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-11-16 19:37:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 27284 states and 40679 transitions. [2022-11-16 19:37:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-11-16 19:37:49,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:37:49,406 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:37:49,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 19:37:49,407 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:37:49,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:37:49,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1132248665, now seen corresponding path program 1 times [2022-11-16 19:37:49,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:37:49,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379875823] [2022-11-16 19:37:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:37:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:37:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:37:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2022-11-16 19:37:54,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:37:54,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379875823] [2022-11-16 19:37:54,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379875823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:37:54,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:37:54,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:37:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204220260] [2022-11-16 19:37:54,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:37:54,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:37:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:37:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:37:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:37:54,807 INFO L87 Difference]: Start difference. First operand 27284 states and 40679 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-16 19:37:59,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:06,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:17,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:20,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:22,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:24,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:26,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:28,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:30,588 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 [] [2022-11-16 19:38:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:38:36,002 INFO L93 Difference]: Finished difference Result 63897 states and 96189 transitions. [2022-11-16 19:38:36,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:38:36,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 520 [2022-11-16 19:38:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:38:36,164 INFO L225 Difference]: With dead ends: 63897 [2022-11-16 19:38:36,164 INFO L226 Difference]: Without dead ends: 36754 [2022-11-16 19:38:36,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:38:36,267 INFO L413 NwaCegarLoop]: 11697 mSDtfsCounter, 3650 mSDsluCounter, 20886 mSDsCounter, 0 mSdLazyCounter, 3182 mSolverCounterSat, 994 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 32583 SdHoareTripleChecker+Invalid, 4181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 994 IncrementalHoareTripleChecker+Valid, 3182 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:38:36,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4154 Valid, 32583 Invalid, 4181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [994 Valid, 3182 Invalid, 5 Unknown, 0 Unchecked, 39.3s Time] [2022-11-16 19:38:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36754 states. [2022-11-16 19:38:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36754 to 27290. [2022-11-16 19:38:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27290 states, 17426 states have (on average 1.3271548261218868) internal successors, (23127), 17795 states have internal predecessors, (23127), 8780 states have call successors, (8780), 1089 states have call predecessors, (8780), 1083 states have return successors, (8778), 8720 states have call predecessors, (8778), 8776 states have call successors, (8778) [2022-11-16 19:38:38,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27290 states to 27290 states and 40685 transitions. [2022-11-16 19:38:38,833 INFO L78 Accepts]: Start accepts. Automaton has 27290 states and 40685 transitions. Word has length 520 [2022-11-16 19:38:38,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:38:38,834 INFO L495 AbstractCegarLoop]: Abstraction has 27290 states and 40685 transitions. [2022-11-16 19:38:38,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-16 19:38:38,835 INFO L276 IsEmpty]: Start isEmpty. Operand 27290 states and 40685 transitions. [2022-11-16 19:38:38,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-11-16 19:38:38,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:38:38,852 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:38:38,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 19:38:38,852 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:38:38,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:38:38,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1813513605, now seen corresponding path program 1 times [2022-11-16 19:38:38,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:38:38,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300586051] [2022-11-16 19:38:38,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:38:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:38:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:38:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3318 trivial. 0 not checked. [2022-11-16 19:38:43,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:38:43,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300586051] [2022-11-16 19:38:43,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300586051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:38:43,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:38:43,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:38:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759244685] [2022-11-16 19:38:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:38:43,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:38:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:38:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:38:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:38:43,300 INFO L87 Difference]: Start difference. First operand 27290 states and 40685 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-16 19:38:48,201 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 [] [2022-11-16 19:38:57,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:03,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:05,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:09,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:11,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:13,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:23,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:39:23,999 INFO L93 Difference]: Finished difference Result 49839 states and 74407 transitions. [2022-11-16 19:39:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:39:23,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 537 [2022-11-16 19:39:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:39:24,228 INFO L225 Difference]: With dead ends: 49839 [2022-11-16 19:39:24,228 INFO L226 Difference]: Without dead ends: 49837 [2022-11-16 19:39:24,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:39:24,257 INFO L413 NwaCegarLoop]: 11337 mSDtfsCounter, 9827 mSDsluCounter, 31793 mSDsCounter, 0 mSdLazyCounter, 3570 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9830 SdHoareTripleChecker+Valid, 43130 SdHoareTripleChecker+Invalid, 3577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3570 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:39:24,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9830 Valid, 43130 Invalid, 3577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3570 Invalid, 5 Unknown, 0 Unchecked, 38.9s Time] [2022-11-16 19:39:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49837 states. [2022-11-16 19:39:27,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49837 to 49830. [2022-11-16 19:39:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49830 states, 31816 states have (on average 1.3288282625094292) internal successors, (42278), 32503 states have internal predecessors, (42278), 16062 states have call successors, (16062), 1963 states have call predecessors, (16062), 1951 states have return successors, (16059), 15943 states have call predecessors, (16059), 16054 states have call successors, (16059) [2022-11-16 19:39:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49830 states to 49830 states and 74399 transitions. [2022-11-16 19:39:27,546 INFO L78 Accepts]: Start accepts. Automaton has 49830 states and 74399 transitions. Word has length 537 [2022-11-16 19:39:27,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:39:27,547 INFO L495 AbstractCegarLoop]: Abstraction has 49830 states and 74399 transitions. [2022-11-16 19:39:27,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-16 19:39:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 49830 states and 74399 transitions. [2022-11-16 19:39:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2022-11-16 19:39:27,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:27,562 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:27,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 19:39:27,562 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:27,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:27,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1011985261, now seen corresponding path program 1 times [2022-11-16 19:39:27,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:27,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781031484] [2022-11-16 19:39:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:27,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:31,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3360 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3358 trivial. 0 not checked. [2022-11-16 19:39:31,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:31,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781031484] [2022-11-16 19:39:31,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781031484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:39:31,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:39:31,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:39:31,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176253896] [2022-11-16 19:39:31,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:39:31,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:39:31,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:39:31,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:39:31,385 INFO L87 Difference]: Start difference. First operand 49830 states and 74399 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-16 19:39:35,893 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 [] [2022-11-16 19:39:40,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:52,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:54,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:56,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:39:58,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:00,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:09,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:13,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:13,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:40:13,486 INFO L93 Difference]: Finished difference Result 72383 states and 108125 transitions. [2022-11-16 19:40:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:40:13,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 545 [2022-11-16 19:40:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:40:13,845 INFO L225 Difference]: With dead ends: 72383 [2022-11-16 19:40:13,845 INFO L226 Difference]: Without dead ends: 72379 [2022-11-16 19:40:13,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:40:13,892 INFO L413 NwaCegarLoop]: 11352 mSDtfsCounter, 9822 mSDsluCounter, 31817 mSDsCounter, 0 mSdLazyCounter, 3575 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9824 SdHoareTripleChecker+Valid, 43169 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3575 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-16 19:40:13,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9824 Valid, 43169 Invalid, 3583 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3575 Invalid, 6 Unknown, 0 Unchecked, 39.6s Time] [2022-11-16 19:40:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72379 states. [2022-11-16 19:40:20,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72379 to 72374. [2022-11-16 19:40:20,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72374 states, 46210 states have (on average 1.3294092187838131) internal successors, (61432), 47212 states have internal predecessors, (61432), 23344 states have call successors, (23344), 2838 states have call predecessors, (23344), 2819 states have return successors, (23340), 23168 states have call predecessors, (23340), 23332 states have call successors, (23340) [2022-11-16 19:40:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72374 states to 72374 states and 108116 transitions. [2022-11-16 19:40:20,841 INFO L78 Accepts]: Start accepts. Automaton has 72374 states and 108116 transitions. Word has length 545 [2022-11-16 19:40:20,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:40:20,842 INFO L495 AbstractCegarLoop]: Abstraction has 72374 states and 108116 transitions. [2022-11-16 19:40:20,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-16 19:40:20,843 INFO L276 IsEmpty]: Start isEmpty. Operand 72374 states and 108116 transitions. [2022-11-16 19:40:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-16 19:40:20,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:40:20,852 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 16, 16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:40:20,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 19:40:20,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:40:20,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:40:20,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2037817534, now seen corresponding path program 1 times [2022-11-16 19:40:20,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:40:20,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806432835] [2022-11-16 19:40:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:40:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:40:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:40:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3366 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2022-11-16 19:40:23,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:40:23,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806432835] [2022-11-16 19:40:23,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806432835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:40:23,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:40:23,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:40:23,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254799645] [2022-11-16 19:40:23,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:40:23,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:40:23,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:40:23,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:40:23,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:40:23,987 INFO L87 Difference]: Start difference. First operand 72374 states and 108116 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-16 19:40:27,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:30,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:46,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:48,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:50,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:52,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:53,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:40:55,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:05,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:07,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:08,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:12,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:14,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:14,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:14,659 INFO L93 Difference]: Finished difference Result 72385 states and 108125 transitions. [2022-11-16 19:41:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:41:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 550 [2022-11-16 19:41:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:15,147 INFO L225 Difference]: With dead ends: 72385 [2022-11-16 19:41:15,148 INFO L226 Difference]: Without dead ends: 72309 [2022-11-16 19:41:15,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 19:41:15,178 INFO L413 NwaCegarLoop]: 11348 mSDtfsCounter, 9822 mSDsluCounter, 31809 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9823 SdHoareTripleChecker+Valid, 43157 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2022-11-16 19:41:15,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9823 Valid, 43157 Invalid, 3586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3578 Invalid, 6 Unknown, 0 Unchecked, 47.9s Time] [2022-11-16 19:41:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72309 states. [2022-11-16 19:41:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72309 to 72304. [2022-11-16 19:41:20,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72304 states, 46190 states have (on average 1.329140506603161) internal successors, (61393), 47174 states have internal predecessors, (61393), 23300 states have call successors, (23300), 2827 states have call predecessors, (23300), 2813 states have return successors, (23300), 23147 states have call predecessors, (23300), 23292 states have call successors, (23300) [2022-11-16 19:41:20,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72304 states to 72304 states and 107993 transitions. [2022-11-16 19:41:20,516 INFO L78 Accepts]: Start accepts. Automaton has 72304 states and 107993 transitions. Word has length 550 [2022-11-16 19:41:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:41:20,517 INFO L495 AbstractCegarLoop]: Abstraction has 72304 states and 107993 transitions. [2022-11-16 19:41:20,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-16 19:41:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 72304 states and 107993 transitions. [2022-11-16 19:41:20,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-11-16 19:41:20,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:41:20,882 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 15, 15, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:41:20,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 19:41:20,882 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:41:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:41:20,883 INFO L85 PathProgramCache]: Analyzing trace with hash -306731670, now seen corresponding path program 1 times [2022-11-16 19:41:20,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:41:20,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647219876] [2022-11-16 19:41:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:41:20,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:41:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:41:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3468 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3450 trivial. 0 not checked. [2022-11-16 19:41:22,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:41:22,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647219876] [2022-11-16 19:41:22,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647219876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:41:22,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:41:22,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:41:22,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073491856] [2022-11-16 19:41:22,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:41:22,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:41:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:41:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:41:22,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:41:22,411 INFO L87 Difference]: Start difference. First operand 72304 states and 107993 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2022-11-16 19:41:25,689 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 [] [2022-11-16 19:41:30,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:32,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:43,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:45,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:48,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:50,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:41:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:41:52,037 INFO L93 Difference]: Finished difference Result 155274 states and 231899 transitions. [2022-11-16 19:41:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:41:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) Word has length 700 [2022-11-16 19:41:52,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:41:52,505 INFO L225 Difference]: With dead ends: 155274 [2022-11-16 19:41:52,505 INFO L226 Difference]: Without dead ends: 87657 [2022-11-16 19:41:52,982 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 [2022-11-16 19:41:52,983 INFO L413 NwaCegarLoop]: 10744 mSDtfsCounter, 7231 mSDsluCounter, 9092 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7231 SdHoareTripleChecker+Valid, 19836 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:41:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7231 Valid, 19836 Invalid, 1852 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7 Valid, 1841 Invalid, 4 Unknown, 0 Unchecked, 25.3s Time] [2022-11-16 19:41:53,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87657 states. [2022-11-16 19:41:59,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87657 to 87588. [2022-11-16 19:41:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87588 states, 56017 states have (on average 1.3296142242533517) internal successors, (74481), 57199 states have internal predecessors, (74481), 28092 states have call successors, (28092), 3499 states have call predecessors, (28092), 3478 states have return successors, (28092), 27893 states have call predecessors, (28092), 28084 states have call successors, (28092) [2022-11-16 19:42:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87588 states to 87588 states and 130665 transitions. [2022-11-16 19:42:00,142 INFO L78 Accepts]: Start accepts. Automaton has 87588 states and 130665 transitions. Word has length 700 [2022-11-16 19:42:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:42:00,144 INFO L495 AbstractCegarLoop]: Abstraction has 87588 states and 130665 transitions. [2022-11-16 19:42:00,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2022-11-16 19:42:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 87588 states and 130665 transitions. [2022-11-16 19:42:00,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2022-11-16 19:42:00,236 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:42:00,237 INFO L195 NwaCegarLoop]: trace histogram [34, 25, 25, 25, 25, 25, 25, 15, 15, 15, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:42:00,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 19:42:00,237 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:42:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:42:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash -57052036, now seen corresponding path program 1 times [2022-11-16 19:42:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:42:00,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478265008] [2022-11-16 19:42:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:42:01,378 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 19:42:01,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1444710328] [2022-11-16 19:42:01,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:01,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:42:01,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:42:01,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:42:01,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece1a037-b45b-4946-881e-fb71c70c6a82/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:42:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:42:09,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 23978 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 19:42:09,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:42:09,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3636 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 3300 trivial. 0 not checked. [2022-11-16 19:42:09,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:42:09,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:42:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478265008] [2022-11-16 19:42:09,336 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 19:42:09,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444710328] [2022-11-16 19:42:09,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444710328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:42:09,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:42:09,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:42:09,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776855465] [2022-11-16 19:42:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:42:09,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:42:09,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:42:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:42:09,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:42:09,340 INFO L87 Difference]: Start difference. First operand 87588 states and 130665 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 3 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2022-11-16 19:42:13,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:42:17,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:42:20,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:42:28,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 19:42:30,550 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 [] [2022-11-16 19:42:34,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:42:34,354 INFO L93 Difference]: Finished difference Result 184722 states and 277022 transitions. [2022-11-16 19:42:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:42:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 3 states have call successors, (130), 2 states have call predecessors, (130), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 912 [2022-11-16 19:42:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:42:34,920 INFO L225 Difference]: With dead ends: 184722 [2022-11-16 19:42:34,920 INFO L226 Difference]: Without dead ends: 101821 [2022-11-16 19:42:35,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 911 GetRequests, 910 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:42:35,278 INFO L413 NwaCegarLoop]: 10529 mSDtfsCounter, 1229 mSDsluCounter, 9460 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 19989 SdHoareTripleChecker+Invalid, 1921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-16 19:42:35,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 19989 Invalid, 1921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1916 Invalid, 4 Unknown, 0 Unchecked, 19.8s Time] [2022-11-16 19:42:35,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101821 states.