./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-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f70e4e56f3340c1b20d9142537fb15f82141ddbe721f83e6a5c46f084f6374a2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:19:48,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:19:48,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:19:48,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:19:48,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:19:48,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:19:48,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:19:48,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:19:48,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:19:48,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:19:48,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:19:48,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:19:48,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:19:48,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:19:48,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:19:48,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:19:48,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:19:48,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:19:48,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:19:48,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:19:48,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:19:48,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:19:48,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:19:48,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:19:48,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:19:48,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:19:48,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:19:48,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:19:48,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:19:48,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:19:48,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:19:48,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:19:48,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:19:48,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:19:48,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:19:48,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:19:48,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:19:48,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:19:48,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:19:48,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:19:48,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:19:48,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:19:48,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:19:48,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:19:48,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:19:48,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:19:48,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:19:48,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:19:48,184 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:19:48,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:19:48,185 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:19:48,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:19:48,187 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:19:48,187 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:19:48,187 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:19:48,187 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:19:48,188 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:19:48,188 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:19:48,188 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:19:48,189 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:19:48,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:19:48,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:19:48,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:19:48,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:19:48,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:19:48,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:19:48,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:19:48,192 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:19:48,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:19:48,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:19:48,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:19:48,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:19:48,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:19:48,195 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:19:48,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:19:48,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:19:48,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:19:48,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:19:48,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:19:48,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:19:48,197 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_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70e4e56f3340c1b20d9142537fb15f82141ddbe721f83e6a5c46f084f6374a2 [2022-11-22 01:19:48,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:19:48,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:19:48,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:19:48,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:19:48,485 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:19:48,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:19:51,703 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:19:52,573 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:19:52,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:19:52,637 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/data/782174ce0/9b022185da5c47eebb346b2ee9f9bb68/FLAG9a2dcce1d [2022-11-22 01:19:52,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/data/782174ce0/9b022185da5c47eebb346b2ee9f9bb68 [2022-11-22 01:19:52,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:19:52,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:19:52,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:19:52,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:19:52,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:19:52,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:19:52" (1/1) ... [2022-11-22 01:19:52,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2759c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:52, skipping insertion in model container [2022-11-22 01:19:52,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:19:52" (1/1) ... [2022-11-22 01:19:52,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:19:53,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:19:59,851 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[620998,621011] [2022-11-22 01:19:59,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621164,621177] [2022-11-22 01:19:59,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621328,621341] [2022-11-22 01:19:59,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621493,621506] [2022-11-22 01:19:59,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:20:00,024 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:20:00,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[620998,621011] [2022-11-22 01:20:00,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621164,621177] [2022-11-22 01:20:00,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621328,621341] [2022-11-22 01:20:00,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[621493,621506] [2022-11-22 01:20:00,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:20:01,434 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:20:01,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01 WrapperNode [2022-11-22 01:20:01,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:20:01,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:20:01,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:20:01,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:20:01,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:01,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,245 INFO L138 Inliner]: procedures = 702, calls = 7478, calls flagged for inlining = 381, calls inlined = 353, statements flattened = 15675 [2022-11-22 01:20:02,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:20:02,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:20:02,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:20:02,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:20:02,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:02,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:03,103 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:03,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:03,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:20:03,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:20:03,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:20:03,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:20:03,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (1/1) ... [2022-11-22 01:20:03,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:20:03,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:20:03,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:20:03,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c62cead2-296f-4d94-a7e5-9df29bd8bc6f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:20:03,370 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 01:20:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 01:20:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 01:20:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 01:20:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-22 01:20:03,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:20:03,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:20:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 01:20:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 01:20:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2022-11-22 01:20:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2022-11-22 01:20:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 01:20:03,372 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 01:20:03,372 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:20:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:20:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2022-11-22 01:20:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2022-11-22 01:20:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:20:03,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:20:03,373 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2022-11-22 01:20:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2022-11-22 01:20:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2022-11-22 01:20:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2022-11-22 01:20:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2022-11-22 01:20:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2022-11-22 01:20:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-11-22 01:20:03,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-11-22 01:20:03,374 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:20:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:20:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:20:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-22 01:20:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2022-11-22 01:20:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2022-11-22 01:20:03,375 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 01:20:03,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 01:20:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 01:20:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 01:20:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-22 01:20:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-22 01:20:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:20:03,376 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:20:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 01:20:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 01:20:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:20:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:20:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2022-11-22 01:20:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2022-11-22 01:20:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2022-11-22 01:20:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2022-11-22 01:20:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:20:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:20:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-22 01:20:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-22 01:20:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2022-11-22 01:20:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2022-11-22 01:20:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2022-11-22 01:20:03,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2022-11-22 01:20:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2022-11-22 01:20:03,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2022-11-22 01:20:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2022-11-22 01:20:03,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2022-11-22 01:20:03,379 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:20:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:20:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:20:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:20:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:20:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:20:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2022-11-22 01:20:03,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2022-11-22 01:20:03,380 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:20:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:20:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:20:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:20:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2022-11-22 01:20:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2022-11-22 01:20:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:20:03,381 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:20:03,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:20:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:20:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2022-11-22 01:20:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2022-11-22 01:20:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:20:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:20:03,382 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:20:03,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2022-11-22 01:20:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:20:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:20:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 01:20:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 01:20:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:20:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:20:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:20:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2022-11-22 01:20:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2022-11-22 01:20:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2022-11-22 01:20:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2022-11-22 01:20:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2022-11-22 01:20:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2022-11-22 01:20:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2022-11-22 01:20:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2022-11-22 01:20:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2022-11-22 01:20:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2022-11-22 01:20:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:20:03,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:20:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2022-11-22 01:20:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2022-11-22 01:20:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 01:20:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 01:20:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-11-22 01:20:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-11-22 01:20:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2022-11-22 01:20:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2022-11-22 01:20:03,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2022-11-22 01:20:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2022-11-22 01:20:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:20:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:20:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2022-11-22 01:20:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2022-11-22 01:20:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:20:03,387 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:20:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-22 01:20:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2022-11-22 01:20:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2022-11-22 01:20:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2022-11-22 01:20:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-22 01:20:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-22 01:20:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:20:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2022-11-22 01:20:03,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2022-11-22 01:20:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 01:20:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 01:20:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:20:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:20:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 01:20:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 01:20:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2022-11-22 01:20:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2022-11-22 01:20:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2022-11-22 01:20:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2022-11-22 01:20:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2022-11-22 01:20:03,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2022-11-22 01:20:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:20:03,390 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2022-11-22 01:20:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2022-11-22 01:20:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:20:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:20:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:20:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:20:03,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:20:03,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:20:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:20:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:20:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:20:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:20:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:20:03,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:20:03,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:20:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2022-11-22 01:20:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2022-11-22 01:20:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-22 01:20:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-22 01:20:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:20:03,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:20:03,393 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2022-11-22 01:20:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2022-11-22 01:20:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-22 01:20:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-22 01:20:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:20:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:20:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2022-11-22 01:20:03,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2022-11-22 01:20:03,394 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2022-11-22 01:20:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2022-11-22 01:20:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:20:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:20:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:20:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:20:03,395 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:20:03,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2022-11-22 01:20:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2022-11-22 01:20:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2022-11-22 01:20:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2022-11-22 01:20:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2022-11-22 01:20:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:20:03,396 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2022-11-22 01:20:03,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2022-11-22 01:20:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:20:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:20:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:20:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:20:03,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:20:03,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:20:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2022-11-22 01:20:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2022-11-22 01:20:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:20:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:20:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-11-22 01:20:03,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-11-22 01:20:03,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:20:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:20:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:20:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:20:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:20:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:20:03,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:20:03,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:20:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:20:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-11-22 01:20:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-11-22 01:20:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2022-11-22 01:20:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2022-11-22 01:20:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:20:03,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:20:03,400 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:20:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:20:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2022-11-22 01:20:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2022-11-22 01:20:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:20:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 01:20:03,401 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2022-11-22 01:20:03,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2022-11-22 01:20:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2022-11-22 01:20:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2022-11-22 01:20:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 01:20:03,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 01:20:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2022-11-22 01:20:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2022-11-22 01:20:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:20:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:20:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2022-11-22 01:20:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2022-11-22 01:20:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:20:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:20:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:20:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:20:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:20:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:20:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:20:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:20:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2022-11-22 01:20:03,404 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2022-11-22 01:20:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2022-11-22 01:20:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2022-11-22 01:20:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-22 01:20:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-22 01:20:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2022-11-22 01:20:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2022-11-22 01:20:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:20:03,405 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:20:03,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:20:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:20:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-22 01:20:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2022-11-22 01:20:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:20:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:20:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2022-11-22 01:20:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2022-11-22 01:20:03,406 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 01:20:03,406 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 01:20:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2022-11-22 01:20:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2022-11-22 01:20:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2022-11-22 01:20:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2022-11-22 01:20:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:20:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:20:03,407 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2022-11-22 01:20:03,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:20:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2022-11-22 01:20:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 01:20:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 01:20:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:20:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:20:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2022-11-22 01:20:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2022-11-22 01:20:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-22 01:20:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-22 01:20:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:20:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:20:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:20:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:20:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-11-22 01:20:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-11-22 01:20:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:20:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2022-11-22 01:20:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2022-11-22 01:20:03,410 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:20:03,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:20:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2022-11-22 01:20:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2022-11-22 01:20:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2022-11-22 01:20:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2022-11-22 01:20:03,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:20:03,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:20:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2022-11-22 01:20:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2022-11-22 01:20:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2022-11-22 01:20:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2022-11-22 01:20:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2022-11-22 01:20:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2022-11-22 01:20:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-22 01:20:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2022-11-22 01:20:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-22 01:20:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-22 01:20:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:20:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:20:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:20:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:20:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2022-11-22 01:20:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2022-11-22 01:20:03,414 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:20:03,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:20:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:20:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:20:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2022-11-22 01:20:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2022-11-22 01:20:03,415 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2022-11-22 01:20:03,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2022-11-22 01:20:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:20:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:20:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2022-11-22 01:20:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2022-11-22 01:20:03,416 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2022-11-22 01:20:03,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2022-11-22 01:20:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:20:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:20:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2022-11-22 01:20:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2022-11-22 01:20:03,417 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:20:03,417 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:20:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:20:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:20:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:20:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:20:03,418 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:20:03,418 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2022-11-22 01:20:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2022-11-22 01:20:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 01:20:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 01:20:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2022-11-22 01:20:03,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2022-11-22 01:20:03,419 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:20:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:20:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2022-11-22 01:20:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2022-11-22 01:20:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:20:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 01:20:03,420 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 01:20:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2022-11-22 01:20:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2022-11-22 01:20:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2022-11-22 01:20:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2022-11-22 01:20:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 01:20:03,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 01:20:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:20:03,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:20:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:20:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2022-11-22 01:20:03,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2022-11-22 01:20:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2022-11-22 01:20:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2022-11-22 01:20:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:20:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:20:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2022-11-22 01:20:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2022-11-22 01:20:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:20:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:20:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:20:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:20:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:20:03,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:20:03,424 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:20:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:20:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:20:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:20:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2022-11-22 01:20:03,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2022-11-22 01:20:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2022-11-22 01:20:03,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2022-11-22 01:20:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-22 01:20:03,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-22 01:20:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-22 01:20:03,426 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-22 01:20:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2022-11-22 01:20:03,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2022-11-22 01:20:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:20:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:20:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:20:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:20:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:20:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:20:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:20:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:20:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2022-11-22 01:20:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2022-11-22 01:20:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:20:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:20:03,428 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2022-11-22 01:20:03,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2022-11-22 01:20:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 01:20:03,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 01:20:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:20:03,429 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:20:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:20:03,429 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:20:03,429 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2022-11-22 01:20:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2022-11-22 01:20:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:20:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:20:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:20:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:20:03,430 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2022-11-22 01:20:03,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2022-11-22 01:20:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:20:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:20:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:20:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:20:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:20:03,431 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-11-22 01:20:03,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-11-22 01:20:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:20:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:20:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 01:20:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 01:20:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2022-11-22 01:20:03,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2022-11-22 01:20:03,432 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2022-11-22 01:20:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2022-11-22 01:20:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-22 01:20:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-22 01:20:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2022-11-22 01:20:03,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2022-11-22 01:20:03,433 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2022-11-22 01:20:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2022-11-22 01:20:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 01:20:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 01:20:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:20:03,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2022-11-22 01:20:03,434 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2022-11-22 01:20:03,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2022-11-22 01:20:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2022-11-22 01:20:03,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2022-11-22 01:20:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2022-11-22 01:20:03,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2022-11-22 01:20:03,435 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:20:03,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:20:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-22 01:20:03,436 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-22 01:20:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2022-11-22 01:20:03,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2022-11-22 01:20:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2022-11-22 01:20:03,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2022-11-22 01:20:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:20:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:20:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2022-11-22 01:20:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2022-11-22 01:20:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2022-11-22 01:20:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2022-11-22 01:20:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:20:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:20:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2022-11-22 01:20:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2022-11-22 01:20:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:20:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:20:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2022-11-22 01:20:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2022-11-22 01:20:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2022-11-22 01:20:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2022-11-22 01:20:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2022-11-22 01:20:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2022-11-22 01:20:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2022-11-22 01:20:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2022-11-22 01:20:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:20:03,440 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:20:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:20:03,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:20:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:20:03,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:20:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2022-11-22 01:20:03,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2022-11-22 01:20:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-11-22 01:20:03,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-11-22 01:20:03,441 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2022-11-22 01:20:03,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2022-11-22 01:20:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:20:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:20:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2022-11-22 01:20:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2022-11-22 01:20:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-11-22 01:20:03,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-11-22 01:20:03,442 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2022-11-22 01:20:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2022-11-22 01:20:03,443 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2022-11-22 01:20:03,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2022-11-22 01:20:05,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:20:05,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:20:05,493 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:20:31,790 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:20:32,986 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:20:40,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:20:40,573 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 01:20:40,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:20:40 BoogieIcfgContainer [2022-11-22 01:20:40,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:20:40,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:20:40,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:20:40,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:20:40,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:19:52" (1/3) ... [2022-11-22 01:20:40,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24accea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:20:40, skipping insertion in model container [2022-11-22 01:20:40,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:01" (2/3) ... [2022-11-22 01:20:40,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24accea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:20:40, skipping insertion in model container [2022-11-22 01:20:40,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:20:40" (3/3) ... [2022-11-22 01:20:40,594 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2022-11-22 01:20:40,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:20:40,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:20:40,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:20:40,812 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;@3829eec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:20:40,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:20:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 3762 states, 2269 states have (on average 1.3182018510356985) internal successors, (2991), 2334 states have internal predecessors, (2991), 1252 states have call successors, (1252), 239 states have call predecessors, (1252), 238 states have return successors, (1245), 1229 states have call predecessors, (1245), 1245 states have call successors, (1245) [2022-11-22 01:20:40,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-22 01:20:40,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:40,878 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:40,879 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:20:40,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:40,885 INFO L85 PathProgramCache]: Analyzing trace with hash -600506852, now seen corresponding path program 1 times [2022-11-22 01:20:40,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:40,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151718441] [2022-11-22 01:20:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 01:20:43,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:43,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151718441] [2022-11-22 01:20:43,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151718441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:43,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:43,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:20:43,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215763396] [2022-11-22 01:20:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:43,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:43,420 INFO L87 Difference]: Start difference. First operand has 3762 states, 2269 states have (on average 1.3182018510356985) internal successors, (2991), 2334 states have internal predecessors, (2991), 1252 states have call successors, (1252), 239 states have call predecessors, (1252), 238 states have return successors, (1245), 1229 states have call predecessors, (1245), 1245 states have call successors, (1245) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:20:46,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:51,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:20:54,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:20:59,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:03,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:21:07,060 INFO L93 Difference]: Finished difference Result 11127 states and 16358 transitions. [2022-11-22 01:21:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:21:07,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 201 [2022-11-22 01:21:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:21:07,151 INFO L225 Difference]: With dead ends: 11127 [2022-11-22 01:21:07,152 INFO L226 Difference]: Without dead ends: 7391 [2022-11-22 01:21:07,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:07,191 INFO L413 NwaCegarLoop]: 5940 mSDtfsCounter, 5331 mSDsluCounter, 4690 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5334 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:21:07,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5334 Valid, 10630 Invalid, 1538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1527 Invalid, 4 Unknown, 0 Unchecked, 22.7s Time] [2022-11-22 01:21:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2022-11-22 01:21:08,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 7385. [2022-11-22 01:21:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7385 states, 4465 states have (on average 1.316461366181411) internal successors, (5878), 4596 states have internal predecessors, (5878), 2445 states have call successors, (2445), 473 states have call predecessors, (2445), 472 states have return successors, (2444), 2407 states have call predecessors, (2444), 2441 states have call successors, (2444) [2022-11-22 01:21:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7385 states to 7385 states and 10767 transitions. [2022-11-22 01:21:08,119 INFO L78 Accepts]: Start accepts. Automaton has 7385 states and 10767 transitions. Word has length 201 [2022-11-22 01:21:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:21:08,124 INFO L495 AbstractCegarLoop]: Abstraction has 7385 states and 10767 transitions. [2022-11-22 01:21:08,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:21:08,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7385 states and 10767 transitions. [2022-11-22 01:21:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-22 01:21:08,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:21:08,141 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:21:08,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:21:08,142 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:21:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:21:08,143 INFO L85 PathProgramCache]: Analyzing trace with hash -249362414, now seen corresponding path program 1 times [2022-11-22 01:21:08,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:21:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341326455] [2022-11-22 01:21:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:08,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:21:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:09,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 01:21:09,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:21:09,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341326455] [2022-11-22 01:21:09,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341326455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:21:09,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:21:09,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:21:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239879012] [2022-11-22 01:21:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:21:09,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:21:09,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:21:09,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:21:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:09,173 INFO L87 Difference]: Start difference. First operand 7385 states and 10767 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:21:11,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:15,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:21:20,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:24,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:26,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:32,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:21:32,494 INFO L93 Difference]: Finished difference Result 19952 states and 29008 transitions. [2022-11-22 01:21:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:21:32,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 211 [2022-11-22 01:21:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:21:32,599 INFO L225 Difference]: With dead ends: 19952 [2022-11-22 01:21:32,599 INFO L226 Difference]: Without dead ends: 12604 [2022-11-22 01:21:32,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:32,657 INFO L413 NwaCegarLoop]: 6256 mSDtfsCounter, 5338 mSDsluCounter, 4692 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5342 SdHoareTripleChecker+Valid, 10948 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:21:32,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5342 Valid, 10948 Invalid, 1598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1587 Invalid, 4 Unknown, 0 Unchecked, 22.4s Time] [2022-11-22 01:21:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12604 states. [2022-11-22 01:21:33,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12604 to 12583. [2022-11-22 01:21:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12583 states, 7622 states have (on average 1.3150091839412228) internal successors, (10023), 7853 states have internal predecessors, (10023), 4117 states have call successors, (4117), 842 states have call predecessors, (4117), 841 states have return successors, (4125), 4049 states have call predecessors, (4125), 4113 states have call successors, (4125) [2022-11-22 01:21:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 18265 transitions. [2022-11-22 01:21:33,470 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 18265 transitions. Word has length 211 [2022-11-22 01:21:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:21:33,473 INFO L495 AbstractCegarLoop]: Abstraction has 12583 states and 18265 transitions. [2022-11-22 01:21:33,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:21:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 18265 transitions. [2022-11-22 01:21:33,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-22 01:21:33,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:21:33,482 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:21:33,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:21:33,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:21:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:21:33,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1075614808, now seen corresponding path program 1 times [2022-11-22 01:21:33,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:21:33,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245255234] [2022-11-22 01:21:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:33,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:21:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 01:21:34,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:21:34,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245255234] [2022-11-22 01:21:34,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245255234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:21:34,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:21:34,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:21:34,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962175155] [2022-11-22 01:21:34,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:21:34,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:21:34,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:21:34,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:21:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:34,399 INFO L87 Difference]: Start difference. First operand 12583 states and 18265 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:21:37,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:21:40,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:42,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:44,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:21:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:21:55,418 INFO L93 Difference]: Finished difference Result 31778 states and 45935 transitions. [2022-11-22 01:21:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:21:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 217 [2022-11-22 01:21:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:21:55,546 INFO L225 Difference]: With dead ends: 31778 [2022-11-22 01:21:55,547 INFO L226 Difference]: Without dead ends: 19232 [2022-11-22 01:21:55,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:55,606 INFO L413 NwaCegarLoop]: 5781 mSDtfsCounter, 3181 mSDsluCounter, 4646 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3187 SdHoareTripleChecker+Valid, 10427 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:21:55,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3187 Valid, 10427 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1632 Invalid, 4 Unknown, 0 Unchecked, 20.0s Time] [2022-11-22 01:21:55,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19232 states. [2022-11-22 01:21:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19232 to 19205. [2022-11-22 01:21:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19205 states, 11623 states have (on average 1.3086122343629012) internal successors, (15210), 11988 states have internal predecessors, (15210), 6223 states have call successors, (6223), 1360 states have call predecessors, (6223), 1356 states have return successors, (6250), 6108 states have call predecessors, (6250), 6219 states have call successors, (6250) [2022-11-22 01:21:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19205 states to 19205 states and 27683 transitions. [2022-11-22 01:21:56,757 INFO L78 Accepts]: Start accepts. Automaton has 19205 states and 27683 transitions. Word has length 217 [2022-11-22 01:21:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:21:56,760 INFO L495 AbstractCegarLoop]: Abstraction has 19205 states and 27683 transitions. [2022-11-22 01:21:56,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:21:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19205 states and 27683 transitions. [2022-11-22 01:21:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-22 01:21:56,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:21:56,767 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:21:56,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:21:56,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:21:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:21:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash 526348871, now seen corresponding path program 1 times [2022-11-22 01:21:56,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:21:56,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074262920] [2022-11-22 01:21:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:21:56,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:21:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:21:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2022-11-22 01:21:57,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:21:57,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074262920] [2022-11-22 01:21:57,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074262920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:21:57,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:21:57,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:21:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421765293] [2022-11-22 01:21:57,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:21:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:21:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:21:57,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:21:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:21:57,850 INFO L87 Difference]: Start difference. First operand 19205 states and 27683 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:22:01,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:22:04,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:07,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:09,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:13,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:22:19,705 INFO L93 Difference]: Finished difference Result 39278 states and 56719 transitions. [2022-11-22 01:22:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:22:19,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 219 [2022-11-22 01:22:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:22:19,844 INFO L225 Difference]: With dead ends: 39278 [2022-11-22 01:22:19,844 INFO L226 Difference]: Without dead ends: 20110 [2022-11-22 01:22:19,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:22:19,939 INFO L413 NwaCegarLoop]: 7907 mSDtfsCounter, 4694 mSDsluCounter, 4657 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 18 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 12564 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:22:19,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 12564 Invalid, 2062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2040 Invalid, 4 Unknown, 0 Unchecked, 20.9s Time] [2022-11-22 01:22:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20110 states. [2022-11-22 01:22:21,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20110 to 20086. [2022-11-22 01:22:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20086 states, 12234 states have (on average 1.3142880496975642) internal successors, (16079), 12610 states have internal predecessors, (16079), 6446 states have call successors, (6446), 1410 states have call predecessors, (6446), 1403 states have return successors, (6462), 6310 states have call predecessors, (6462), 6442 states have call successors, (6462) [2022-11-22 01:22:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20086 states to 20086 states and 28987 transitions. [2022-11-22 01:22:21,240 INFO L78 Accepts]: Start accepts. Automaton has 20086 states and 28987 transitions. Word has length 219 [2022-11-22 01:22:21,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:22:21,241 INFO L495 AbstractCegarLoop]: Abstraction has 20086 states and 28987 transitions. [2022-11-22 01:22:21,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-22 01:22:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 20086 states and 28987 transitions. [2022-11-22 01:22:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-22 01:22:21,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:22:21,248 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 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] [2022-11-22 01:22:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:22:21,248 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:22:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:22:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash -24722376, now seen corresponding path program 1 times [2022-11-22 01:22:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:22:21,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260544771] [2022-11-22 01:22:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:22:21,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:22:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:22:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 01:22:23,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:22:23,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260544771] [2022-11-22 01:22:23,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260544771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:22:23,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:22:23,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:22:23,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447916485] [2022-11-22 01:22:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:22:23,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:22:23,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:22:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:22:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:22:23,760 INFO L87 Difference]: Start difference. First operand 20086 states and 28987 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:22:27,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:22:30,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:33,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:35,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:22:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:22:49,842 INFO L93 Difference]: Finished difference Result 22086 states and 31804 transitions. [2022-11-22 01:22:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:22:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 243 [2022-11-22 01:22:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:22:49,984 INFO L225 Difference]: With dead ends: 22086 [2022-11-22 01:22:49,985 INFO L226 Difference]: Without dead ends: 22084 [2022-11-22 01:22:50,003 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 [2022-11-22 01:22:50,004 INFO L413 NwaCegarLoop]: 5461 mSDtfsCounter, 5363 mSDsluCounter, 12814 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5372 SdHoareTripleChecker+Valid, 18275 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:22:50,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5372 Valid, 18275 Invalid, 2809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2804 Invalid, 4 Unknown, 0 Unchecked, 25.0s Time] [2022-11-22 01:22:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22084 states. [2022-11-22 01:22:51,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22084 to 22079. [2022-11-22 01:22:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22079 states, 13463 states have (on average 1.3150857906855826) internal successors, (17705), 13884 states have internal predecessors, (17705), 7035 states have call successors, (7035), 1583 states have call predecessors, (7035), 1578 states have return successors, (7059), 6889 states have call predecessors, (7059), 7031 states have call successors, (7059) [2022-11-22 01:22:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22079 states to 22079 states and 31799 transitions. [2022-11-22 01:22:51,346 INFO L78 Accepts]: Start accepts. Automaton has 22079 states and 31799 transitions. Word has length 243 [2022-11-22 01:22:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:22:51,347 INFO L495 AbstractCegarLoop]: Abstraction has 22079 states and 31799 transitions. [2022-11-22 01:22:51,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:22:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 22079 states and 31799 transitions. [2022-11-22 01:22:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-22 01:22:51,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:22:51,354 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:22:51,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:22:51,354 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:22:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:22:51,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1567921703, now seen corresponding path program 1 times [2022-11-22 01:22:51,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:22:51,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243073584] [2022-11-22 01:22:51,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:22:51,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:22:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:22:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-11-22 01:22:54,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:22:54,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243073584] [2022-11-22 01:22:54,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243073584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:22:54,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:22:54,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:22:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043674789] [2022-11-22 01:22:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:22:54,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:22:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:22:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:22:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:22:54,180 INFO L87 Difference]: Start difference. First operand 22079 states and 31799 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:22:57,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:23:00,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:03,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:05,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:08,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:13,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:15,102 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 [] [2022-11-22 01:23:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:22,188 INFO L93 Difference]: Finished difference Result 22090 states and 31807 transitions. [2022-11-22 01:23:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:23:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 248 [2022-11-22 01:23:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:22,332 INFO L225 Difference]: With dead ends: 22090 [2022-11-22 01:23:22,333 INFO L226 Difference]: Without dead ends: 22088 [2022-11-22 01:23:22,352 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 [2022-11-22 01:23:22,353 INFO L413 NwaCegarLoop]: 5464 mSDtfsCounter, 5358 mSDsluCounter, 12814 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5366 SdHoareTripleChecker+Valid, 18278 SdHoareTripleChecker+Invalid, 2809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:22,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5366 Valid, 18278 Invalid, 2809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2804 Invalid, 4 Unknown, 0 Unchecked, 26.9s Time] [2022-11-22 01:23:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22088 states. [2022-11-22 01:23:23,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22088 to 22083. [2022-11-22 01:23:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22083 states, 13466 states have (on average 1.3150155948314273) internal successors, (17708), 13887 states have internal predecessors, (17708), 7035 states have call successors, (7035), 1584 states have call predecessors, (7035), 1579 states have return successors, (7059), 6889 states have call predecessors, (7059), 7031 states have call successors, (7059) [2022-11-22 01:23:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22083 states to 22083 states and 31802 transitions. [2022-11-22 01:23:23,876 INFO L78 Accepts]: Start accepts. Automaton has 22083 states and 31802 transitions. Word has length 248 [2022-11-22 01:23:23,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:23,877 INFO L495 AbstractCegarLoop]: Abstraction has 22083 states and 31802 transitions. [2022-11-22 01:23:23,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:23:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 22083 states and 31802 transitions. [2022-11-22 01:23:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-22 01:23:23,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:23,886 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 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] [2022-11-22 01:23:23,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:23:23,887 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:23:23,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -790292338, now seen corresponding path program 1 times [2022-11-22 01:23:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:23,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774749186] [2022-11-22 01:23:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2022-11-22 01:23:26,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:26,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774749186] [2022-11-22 01:23:26,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774749186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:26,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:26,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:23:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959501251] [2022-11-22 01:23:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:26,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:23:26,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:26,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:23:26,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:23:26,481 INFO L87 Difference]: Start difference. First operand 22083 states and 31802 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:23:30,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:23:32,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:23:36,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:38,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:41,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:43,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:23:56,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:23:59,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:02,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:09,831 INFO L93 Difference]: Finished difference Result 40041 states and 57881 transitions. [2022-11-22 01:24:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:24:09,832 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 257 [2022-11-22 01:24:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:10,042 INFO L225 Difference]: With dead ends: 40041 [2022-11-22 01:24:10,042 INFO L226 Difference]: Without dead ends: 40037 [2022-11-22 01:24:10,064 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 [2022-11-22 01:24:10,065 INFO L413 NwaCegarLoop]: 5958 mSDtfsCounter, 5167 mSDsluCounter, 16044 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5168 SdHoareTripleChecker+Valid, 22002 SdHoareTripleChecker+Invalid, 3057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:10,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5168 Valid, 22002 Invalid, 3057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3046 Invalid, 8 Unknown, 0 Unchecked, 41.5s Time] [2022-11-22 01:24:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40037 states. [2022-11-22 01:24:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40037 to 39870. [2022-11-22 01:24:12,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39870 states, 24258 states have (on average 1.3146178580262182) internal successors, (31890), 25013 states have internal predecessors, (31890), 12722 states have call successors, (12722), 2927 states have call predecessors, (12722), 2887 states have return successors, (13041), 12387 states have call predecessors, (13041), 12714 states have call successors, (13041) [2022-11-22 01:24:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39870 states to 39870 states and 57653 transitions. [2022-11-22 01:24:12,491 INFO L78 Accepts]: Start accepts. Automaton has 39870 states and 57653 transitions. Word has length 257 [2022-11-22 01:24:12,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:12,492 INFO L495 AbstractCegarLoop]: Abstraction has 39870 states and 57653 transitions. [2022-11-22 01:24:12,492 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-22 01:24:12,492 INFO L276 IsEmpty]: Start isEmpty. Operand 39870 states and 57653 transitions. [2022-11-22 01:24:12,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-22 01:24:12,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:12,500 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 4, 3, 3, 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] [2022-11-22 01:24:12,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:24:12,501 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, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:24:12,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash -2063824189, now seen corresponding path program 1 times [2022-11-22 01:24:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:12,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81803373] [2022-11-22 01:24:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2022-11-22 01:24:14,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:14,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81803373] [2022-11-22 01:24:14,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81803373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:14,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:14,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:24:14,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927894974] [2022-11-22 01:24:14,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:14,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:24:14,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:14,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:24:14,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:24:14,917 INFO L87 Difference]: Start difference. First operand 39870 states and 57653 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) [2022-11-22 01:24:18,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:24:21,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:24,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:26,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:32,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:35,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:37,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:44,385 INFO L93 Difference]: Finished difference Result 39882 states and 57662 transitions. [2022-11-22 01:24:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:24:44,387 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 262 [2022-11-22 01:24:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:44,626 INFO L225 Difference]: With dead ends: 39882 [2022-11-22 01:24:44,626 INFO L226 Difference]: Without dead ends: 39788 [2022-11-22 01:24:44,653 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 [2022-11-22 01:24:44,655 INFO L413 NwaCegarLoop]: 5456 mSDtfsCounter, 5356 mSDsluCounter, 12798 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5362 SdHoareTripleChecker+Valid, 18254 SdHoareTripleChecker+Invalid, 2791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:44,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5362 Valid, 18254 Invalid, 2791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2786 Invalid, 4 Unknown, 0 Unchecked, 27.6s Time] [2022-11-22 01:24:44,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39788 states. [2022-11-22 01:24:47,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39788 to 39782. [2022-11-22 01:24:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39782 states, 24234 states have (on average 1.3138978294957497) internal successors, (31841), 24965 states have internal predecessors, (31841), 12666 states have call successors, (12666), 2914 states have call predecessors, (12666), 2879 states have return successors, (12989), 12360 states have call predecessors, (12989), 12662 states have call successors, (12989) [2022-11-22 01:24:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39782 states to 39782 states and 57496 transitions. [2022-11-22 01:24:47,723 INFO L78 Accepts]: Start accepts. Automaton has 39782 states and 57496 transitions. Word has length 262 [2022-11-22 01:24:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:47,724 INFO L495 AbstractCegarLoop]: Abstraction has 39782 states and 57496 transitions. [2022-11-22 01:24:47,724 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) [2022-11-22 01:24:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 39782 states and 57496 transitions. [2022-11-22 01:24:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-22 01:24:47,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:47,735 INFO L195 NwaCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 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] [2022-11-22 01:24:47,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:24:47,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:24:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:47,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2111352295, now seen corresponding path program 1 times [2022-11-22 01:24:47,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:24:47,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240482093] [2022-11-22 01:24:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:47,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:24:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2022-11-22 01:24:49,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:24:49,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240482093] [2022-11-22 01:24:49,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240482093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:49,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:49,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:49,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219495458] [2022-11-22 01:24:49,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:49,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:49,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:24:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:49,011 INFO L87 Difference]: Start difference. First operand 39782 states and 57496 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:24:53,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:24:56,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:24:58,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:00,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:02,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:05,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:08,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:09,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:12,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:20,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:21,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:21,736 INFO L93 Difference]: Finished difference Result 95997 states and 138815 transitions. [2022-11-22 01:25:21,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:21,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 266 [2022-11-22 01:25:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:22,135 INFO L225 Difference]: With dead ends: 95997 [2022-11-22 01:25:22,135 INFO L226 Difference]: Without dead ends: 56711 [2022-11-22 01:25:22,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:22,348 INFO L413 NwaCegarLoop]: 8442 mSDtfsCounter, 4699 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4701 SdHoareTripleChecker+Valid, 13095 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:22,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4701 Valid, 13095 Invalid, 2174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2155 Invalid, 4 Unknown, 0 Unchecked, 29.1s Time] [2022-11-22 01:25:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56711 states. [2022-11-22 01:25:25,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56711 to 56677. [2022-11-22 01:25:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56677 states, 34630 states have (on average 1.3160265665607855) internal successors, (45574), 35668 states have internal predecessors, (45574), 17924 states have call successors, (17924), 4172 states have call predecessors, (17924), 4120 states have return successors, (18348), 17482 states have call predecessors, (18348), 17920 states have call successors, (18348) [2022-11-22 01:25:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56677 states to 56677 states and 81846 transitions. [2022-11-22 01:25:26,335 INFO L78 Accepts]: Start accepts. Automaton has 56677 states and 81846 transitions. Word has length 266 [2022-11-22 01:25:26,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:26,337 INFO L495 AbstractCegarLoop]: Abstraction has 56677 states and 81846 transitions. [2022-11-22 01:25:26,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:25:26,337 INFO L276 IsEmpty]: Start isEmpty. Operand 56677 states and 81846 transitions. [2022-11-22 01:25:26,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-22 01:25:26,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:26,348 INFO L195 NwaCegarLoop]: trace histogram [23, 18, 18, 18, 18, 18, 18, 4, 4, 3, 3, 3, 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] [2022-11-22 01:25:26,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:25:26,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:25:26,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:26,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1570836857, now seen corresponding path program 1 times [2022-11-22 01:25:26,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:26,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021212829] [2022-11-22 01:25:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:26,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:27,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2022-11-22 01:25:27,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:27,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021212829] [2022-11-22 01:25:27,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021212829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:27,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:27,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302462551] [2022-11-22 01:25:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:27,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:27,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:27,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:27,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:27,527 INFO L87 Difference]: Start difference. First operand 56677 states and 81846 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:25:31,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:25:34,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:37,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:39,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:41,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:47,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:25:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:58,737 INFO L93 Difference]: Finished difference Result 137471 states and 198679 transitions. [2022-11-22 01:25:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:58,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 268 [2022-11-22 01:25:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:59,493 INFO L225 Difference]: With dead ends: 137471 [2022-11-22 01:25:59,493 INFO L226 Difference]: Without dead ends: 81290 [2022-11-22 01:25:59,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:59,761 INFO L413 NwaCegarLoop]: 9240 mSDtfsCounter, 5330 mSDsluCounter, 4688 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5336 SdHoareTripleChecker+Valid, 13928 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:59,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5336 Valid, 13928 Invalid, 2249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 2240 Invalid, 5 Unknown, 0 Unchecked, 26.3s Time] [2022-11-22 01:25:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81290 states. [2022-11-22 01:26:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81290 to 81241. [2022-11-22 01:26:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81241 states, 49602 states have (on average 1.3157130760856417) internal successors, (65262), 51095 states have internal predecessors, (65262), 25769 states have call successors, (25769), 5942 states have call predecessors, (25769), 5867 states have return successors, (26386), 25119 states have call predecessors, (26386), 25765 states have call successors, (26386) [2022-11-22 01:26:05,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81241 states to 81241 states and 117417 transitions. [2022-11-22 01:26:05,734 INFO L78 Accepts]: Start accepts. Automaton has 81241 states and 117417 transitions. Word has length 268 [2022-11-22 01:26:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:05,735 INFO L495 AbstractCegarLoop]: Abstraction has 81241 states and 117417 transitions. [2022-11-22 01:26:05,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 01:26:05,736 INFO L276 IsEmpty]: Start isEmpty. Operand 81241 states and 117417 transitions. [2022-11-22 01:26:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-11-22 01:26:05,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:05,749 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-11-22 01:26:05,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:26:05,749 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:26:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1996199235, now seen corresponding path program 1 times [2022-11-22 01:26:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738278836] [2022-11-22 01:26:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-11-22 01:26:07,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:07,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738278836] [2022-11-22 01:26:07,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738278836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:07,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:07,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:26:07,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712219373] [2022-11-22 01:26:07,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:07,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:26:07,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:07,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:26:07,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:26:07,234 INFO L87 Difference]: Start difference. First operand 81241 states and 117417 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 01:26:12,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-22 01:26:16,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:19,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:21,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:23,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:26,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:34,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:35,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:40,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:41,514 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 [] [2022-11-22 01:26:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:57,022 INFO L93 Difference]: Finished difference Result 186685 states and 269944 transitions. [2022-11-22 01:26:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:26:57,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 292 [2022-11-22 01:26:57,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:57,982 INFO L225 Difference]: With dead ends: 186685 [2022-11-22 01:26:57,982 INFO L226 Difference]: Without dead ends: 105940 [2022-11-22 01:26:58,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:26:58,323 INFO L413 NwaCegarLoop]: 9307 mSDtfsCounter, 5330 mSDsluCounter, 23298 mSDsCounter, 0 mSdLazyCounter, 5230 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5338 SdHoareTripleChecker+Valid, 32605 SdHoareTripleChecker+Invalid, 5235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5230 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:58,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5338 Valid, 32605 Invalid, 5235 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 5230 Invalid, 4 Unknown, 0 Unchecked, 43.3s Time] [2022-11-22 01:26:58,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105940 states. [2022-11-22 01:27:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105940 to 105817. [2022-11-22 01:27:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105817 states, 64574 states have (on average 1.3155449561743116) internal successors, (84950), 66522 states have internal predecessors, (84950), 33614 states have call successors, (33614), 7712 states have call predecessors, (33614), 7626 states have return successors, (34460), 32768 states have call predecessors, (34460), 33610 states have call successors, (34460) [2022-11-22 01:27:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105817 states to 105817 states and 153024 transitions. [2022-11-22 01:27:04,755 INFO L78 Accepts]: Start accepts. Automaton has 105817 states and 153024 transitions. Word has length 292 [2022-11-22 01:27:04,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:04,756 INFO L495 AbstractCegarLoop]: Abstraction has 105817 states and 153024 transitions. [2022-11-22 01:27:04,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-22 01:27:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 105817 states and 153024 transitions. [2022-11-22 01:27:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-22 01:27:04,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:04,773 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 4, 4, 4, 4, 4, 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] [2022-11-22 01:27:04,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:27:04,774 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:04,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2083866687, now seen corresponding path program 1 times [2022-11-22 01:27:04,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:04,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608752658] [2022-11-22 01:27:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:04,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-11-22 01:27:06,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:06,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608752658] [2022-11-22 01:27:06,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608752658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:06,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:27:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600138733] [2022-11-22 01:27:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:27:06,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:06,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:27:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:27:06,218 INFO L87 Difference]: Start difference. First operand 105817 states and 153024 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31)