./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/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_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P --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 --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:38:42,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:38:42,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:38:42,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:38:42,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:38:42,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:38:42,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:38:42,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:38:42,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:38:42,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:38:42,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:38:42,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:38:42,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:38:42,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:38:42,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:38:42,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:38:42,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:38:42,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:38:42,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:38:42,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:38:42,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:38:42,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:38:42,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:38:42,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:38:42,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:38:42,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:38:42,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:38:42,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:38:42,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:38:42,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:38:42,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:38:42,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:38:42,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:38:42,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:38:42,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:38:42,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:38:42,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:38:42,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:38:42,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:38:42,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:38:42,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:38:42,699 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:38:42,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:38:42,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:38:42,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:38:42,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:38:42,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:38:42,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:38:42,727 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:38:42,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:38:42,728 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:38:42,728 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:38:42,728 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:38:42,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:38:42,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:38:42,729 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:38:42,729 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:38:42,729 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:38:42,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:38:42,730 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:38:42,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:38:42,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:38:42,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:38:42,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:38:42,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:38:42,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:38:42,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:38:42,732 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:38:42,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:38:42,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:38:42,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:38:42,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:38:42,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:38:42,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:38:42,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:38:42,740 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:38:42,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:38:42,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:38:42,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:38:42,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:38:42,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70e4e56f3340c1b20d9142537fb15f82141ddbe721f83e6a5c46f084f6374a2 [2021-11-21 01:38:43,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:38:43,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:38:43,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:38:43,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:38:43,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:38:43,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 01:38:43,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/data/a2cd2b01c/5730727ae9874a4e97f5d3f764c985c5/FLAG4753e2d00 [2021-11-21 01:38:44,449 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:38:44,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 01:38:44,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/data/a2cd2b01c/5730727ae9874a4e97f5d3f764c985c5/FLAG4753e2d00 [2021-11-21 01:38:44,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/data/a2cd2b01c/5730727ae9874a4e97f5d3f764c985c5 [2021-11-21 01:38:44,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:38:44,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:38:44,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:38:44,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:38:44,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:38:44,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:38:44" (1/1) ... [2021-11-21 01:38:44,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13717200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:44, skipping insertion in model container [2021-11-21 01:38:44,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:38:44" (1/1) ... [2021-11-21 01:38:44,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:38:44,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:38:52,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:52,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:52,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:52,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:52,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:38:52,279 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:38:53,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:53,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:53,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:53,095 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/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] [2021-11-21 01:38:53,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:38:53,617 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:38:53,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53 WrapperNode [2021-11-21 01:38:53,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:38:53,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:38:53,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:38:53,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:38:53,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:54,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:54,660 INFO L137 Inliner]: procedures = 702, calls = 7462, calls flagged for inlining = 381, calls inlined = 353, statements flattened = 15735 [2021-11-21 01:38:54,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:38:54,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:38:54,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:38:54,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:38:54,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:54,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:54,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:54,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:55,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:55,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:55,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:55,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:38:55,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:38:55,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:38:55,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:38:55,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (1/1) ... [2021-11-21 01:38:55,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:38:55,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:38:55,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:38:55,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cb60b-fd8c-448b-a298-386ad82e9bc3/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:38:55,547 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:38:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:38:55,548 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:38:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:38:55,548 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 01:38:55,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:38:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:38:55,549 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:38:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:38:55,549 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-21 01:38:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-21 01:38:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 01:38:55,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 01:38:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 01:38:55,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 01:38:55,550 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-21 01:38:55,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-21 01:38:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:38:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:38:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-21 01:38:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-21 01:38:55,551 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-21 01:38:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-21 01:38:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-21 01:38:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-21 01:38:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-21 01:38:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-21 01:38:55,552 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:38:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:38:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-21 01:38:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-21 01:38:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-21 01:38:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-21 01:38:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:38:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:38:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:38:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:38:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 01:38:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 01:38:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:38:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:38:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 01:38:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 01:38:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:38:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:38:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-21 01:38:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-21 01:38:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-21 01:38:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-21 01:38:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:38:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:38:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-21 01:38:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-21 01:38:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-21 01:38:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-21 01:38:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-21 01:38:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-21 01:38:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-21 01:38:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-21 01:38:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-21 01:38:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-21 01:38:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-21 01:38:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-21 01:38:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:38:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:38:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:38:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:38:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-21 01:38:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-21 01:38:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:38:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:38:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:38:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:38:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-21 01:38:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-21 01:38:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:38:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:38:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:38:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:38:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-21 01:38:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-21 01:38:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 01:38:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-21 01:38:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-21 01:38:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-21 01:38:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:38:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:38:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:38:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:38:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:38:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:38:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:38:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-21 01:38:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-21 01:38:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-21 01:38:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-21 01:38:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-21 01:38:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-21 01:38:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-21 01:38:55,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-21 01:38:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-21 01:38:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-21 01:38:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 01:38:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 01:38:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-21 01:38:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-21 01:38:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:38:55,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:38:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-21 01:38:55,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-21 01:38:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-21 01:38:55,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-21 01:38:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 01:38:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-21 01:38:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:38:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:38:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-21 01:38:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-21 01:38:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:38:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:38:55,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-21 01:38:55,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-21 01:38:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 01:38:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-21 01:38:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:38:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:38:55,655 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:38:55,655 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:38:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-21 01:38:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-21 01:38:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-21 01:38:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:38:55,656 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-21 01:38:55,656 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:38:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:38:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:38:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:38:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:38:55,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:38:55,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:38:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:38:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:38:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-21 01:38:55,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-21 01:38:55,658 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 01:38:55,659 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 01:38:55,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:38:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:38:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-21 01:38:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-21 01:38:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 01:38:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 01:38:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 01:38:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 01:38:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-21 01:38:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-21 01:38:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-21 01:38:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-21 01:38:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:38:55,661 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:38:55,661 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:38:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:38:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-21 01:38:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-21 01:38:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-21 01:38:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-21 01:38:55,662 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-21 01:38:55,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-21 01:38:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:38:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-21 01:38:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-21 01:38:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:38:55,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:38:55,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 01:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 01:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-21 01:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-21 01:38:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:38:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-21 01:38:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-21 01:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:38:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:38:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:38:55,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:38:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-21 01:38:55,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-21 01:38:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-21 01:38:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-21 01:38:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:38:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:38:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:38:55,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:38:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-21 01:38:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-21 01:38:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:38:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:38:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-21 01:38:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-21 01:38:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-21 01:38:55,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-21 01:38:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:38:55,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:38:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-21 01:38:55,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-21 01:38:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:38:55,675 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:38:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-21 01:38:55,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-21 01:38:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:38:55,675 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:38:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:38:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:38:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:38:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:38:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:38:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:38:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-21 01:38:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-21 01:38:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-21 01:38:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-21 01:38:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 01:38:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 01:38:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-21 01:38:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-21 01:38:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:38:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:38:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:38:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:38:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 01:38:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-21 01:38:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:38:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:38:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-21 01:38:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-21 01:38:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:38:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:38:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-21 01:38:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-21 01:38:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-21 01:38:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-21 01:38:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:38:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:38:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-21 01:38:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-21 01:38:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:38:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:38:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:38:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:38:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 01:38:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 01:38:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 01:38:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 01:38:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:38:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:38:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-21 01:38:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-21 01:38:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-21 01:38:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-21 01:38:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:38:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:38:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:38:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:38:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-21 01:38:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-21 01:38:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:38:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-21 01:38:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-21 01:38:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:38:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:38:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-21 01:38:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-21 01:38:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-21 01:38:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-21 01:38:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:38:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:38:55,685 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-21 01:38:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-21 01:38:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 01:38:55,686 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 01:38:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-21 01:38:55,686 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-21 01:38:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 01:38:55,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-21 01:38:55,686 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-21 01:38:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-21 01:38:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:38:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:38:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:38:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:38:55,687 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-21 01:38:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-21 01:38:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:38:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:38:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:38:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:38:55,688 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-21 01:38:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-21 01:38:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-21 01:38:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-21 01:38:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:38:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:38:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-21 01:38:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-21 01:38:55,689 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-21 01:38:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-21 01:38:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:38:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:38:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-21 01:38:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-21 01:38:55,690 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:38:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:38:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 01:38:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 01:38:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:38:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:38:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:38:55,691 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-21 01:38:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-21 01:38:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:38:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:38:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-21 01:38:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-21 01:38:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:38:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:38:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-21 01:38:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-21 01:38:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:38:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 01:38:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 01:38:55,693 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-21 01:38:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-21 01:38:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-21 01:38:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-21 01:38:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 01:38:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 01:38:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 01:38:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 01:38:55,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:38:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-21 01:38:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-21 01:38:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-21 01:38:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-21 01:38:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:38:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:38:55,695 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-21 01:38:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-21 01:38:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:38:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:38:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:38:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:38:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:38:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:38:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:38:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:38:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:38:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:38:55,697 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-21 01:38:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-21 01:38:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-21 01:38:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-21 01:38:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 01:38:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 01:38:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-21 01:38:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-21 01:38:55,698 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-21 01:38:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-21 01:38:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 01:38:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 01:38:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:38:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:38:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:38:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:38:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:38:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:38:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-21 01:38:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-21 01:38:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 01:38:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 01:38:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-21 01:38:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-21 01:38:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 01:38:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 01:38:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:38:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:38:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:38:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:38:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-21 01:38:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-21 01:38:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:38:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:38:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:38:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:38:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-21 01:38:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-21 01:38:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:38:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 01:38:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 01:38:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:38:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:38:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-21 01:38:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-21 01:38:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:38:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:38:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:38:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:38:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-21 01:38:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-21 01:38:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-21 01:38:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-21 01:38:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 01:38:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 01:38:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-21 01:38:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-21 01:38:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-21 01:38:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-21 01:38:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:38:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:38:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 01:38:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 01:38:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-21 01:38:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-21 01:38:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-21 01:38:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-21 01:38:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-21 01:38:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-21 01:38:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 01:38:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 01:38:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 01:38:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 01:38:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-21 01:38:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-21 01:38:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-21 01:38:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-21 01:38:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:38:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:38:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-21 01:38:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-21 01:38:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-21 01:38:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-21 01:38:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:38:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:38:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-21 01:38:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-21 01:38:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:38:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:38:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-21 01:38:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-21 01:38:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-21 01:38:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-21 01:38:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-21 01:38:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-21 01:38:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-21 01:38:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-21 01:38:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:38:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:38:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:38:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:38:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 01:38:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:38:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-21 01:38:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-21 01:38:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-21 01:38:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-21 01:38:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-21 01:38:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-21 01:38:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:38:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:38:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-21 01:38:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-21 01:38:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 01:38:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 01:38:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-21 01:38:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-21 01:38:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-21 01:38:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-21 01:38:57,359 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:38:57,365 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:38:57,539 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:39:21,443 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:39:22,340 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:39:28,555 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:39:28,555 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 01:39:28,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:28 BoogieIcfgContainer [2021-11-21 01:39:28,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:39:28,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:39:28,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:39:28,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:39:28,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:38:44" (1/3) ... [2021-11-21 01:39:28,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e96fc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:28, skipping insertion in model container [2021-11-21 01:39:28,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:53" (2/3) ... [2021-11-21 01:39:28,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e96fc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:28, skipping insertion in model container [2021-11-21 01:39:28,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:28" (3/3) ... [2021-11-21 01:39:28,583 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 01:39:28,592 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:39:28,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-21 01:39:28,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:39:28,689 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:39:28,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-21 01:39:28,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 3763 states, 2270 states have (on average 1.3176211453744493) 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) [2021-11-21 01:39:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-21 01:39:28,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:28,830 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:39:28,831 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:39:28,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:28,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1831336755, now seen corresponding path program 1 times [2021-11-21 01:39:28,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57744774] [2021-11-21 01:39:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:28,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:39:30,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:30,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57744774] [2021-11-21 01:39:30,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57744774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:30,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:30,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:39:30,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909281403] [2021-11-21 01:39:30,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:30,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:39:30,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:39:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:30,113 INFO L87 Difference]: Start difference. First operand has 3763 states, 2270 states have (on average 1.3176211453744493) 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) [2021-11-21 01:39:34,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:38,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:43,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:45,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:51,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:51,683 INFO L93 Difference]: Finished difference Result 11130 states and 16361 transitions. [2021-11-21 01:39:51,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:39:51,687 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 [2021-11-21 01:39:51,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:51,791 INFO L225 Difference]: With dead ends: 11130 [2021-11-21 01:39:51,792 INFO L226 Difference]: Without dead ends: 7393 [2021-11-21 01:39:51,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:51,842 INFO L933 BasicCegarLoop]: 6127 mSDtfsCounter, 5331 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 10801 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:51,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 10801 Invalid, 1612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1602 Invalid, 3 Unknown, 0 Unchecked, 20.8s Time] [2021-11-21 01:39:51,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2021-11-21 01:39:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 7387. [2021-11-21 01:39:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 4467 states have (on average 1.3158719498544884) 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, (2447), 2407 states have call predecessors, (2447), 2441 states have call successors, (2447) [2021-11-21 01:39:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 10770 transitions. [2021-11-21 01:39:52,517 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 10770 transitions. Word has length 201 [2021-11-21 01:39:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:52,520 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 10770 transitions. [2021-11-21 01:39:52,520 INFO L471 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) [2021-11-21 01:39:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 10770 transitions. [2021-11-21 01:39:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-21 01:39:52,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:52,529 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:39:52,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:39:52,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:39:52,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1119012572, now seen corresponding path program 1 times [2021-11-21 01:39:52,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:52,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515465388] [2021-11-21 01:39:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:52,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:53,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:39:53,281 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:53,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515465388] [2021-11-21 01:39:53,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515465388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:53,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:53,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:39:53,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104763652] [2021-11-21 01:39:53,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:53,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:39:53,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:53,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:39:53,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:53,288 INFO L87 Difference]: Start difference. First operand 7387 states and 10770 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) [2021-11-21 01:39:57,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:00,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:04,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:07,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:13,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:13,685 INFO L93 Difference]: Finished difference Result 18421 states and 26850 transitions. [2021-11-21 01:40:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:13,685 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 [2021-11-21 01:40:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:13,784 INFO L225 Difference]: With dead ends: 18421 [2021-11-21 01:40:13,785 INFO L226 Difference]: Without dead ends: 11071 [2021-11-21 01:40:13,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:13,830 INFO L933 BasicCegarLoop]: 6124 mSDtfsCounter, 5345 mSDsluCounter, 5437 mSDsCounter, 0 mSdLazyCounter, 1600 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 10800 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1600 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:13,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 10800 Invalid, 1611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1600 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2021-11-21 01:40:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2021-11-21 01:40:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 11050. [2021-11-21 01:40:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11050 states, 6681 states have (on average 1.3150725939230654) internal successors, (8786), 6878 states have internal predecessors, (8786), 3655 states have call successors, (3655), 712 states have call predecessors, (3655), 711 states have return successors, (3663), 3594 states have call predecessors, (3663), 3651 states have call successors, (3663) [2021-11-21 01:40:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11050 states to 11050 states and 16104 transitions. [2021-11-21 01:40:14,692 INFO L78 Accepts]: Start accepts. Automaton has 11050 states and 16104 transitions. Word has length 211 [2021-11-21 01:40:14,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:14,694 INFO L470 AbstractCegarLoop]: Abstraction has 11050 states and 16104 transitions. [2021-11-21 01:40:14,695 INFO L471 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) [2021-11-21 01:40:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 11050 states and 16104 transitions. [2021-11-21 01:40:14,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-21 01:40:14,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:14,703 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:40:14,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:40:14,704 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1313545342, now seen corresponding path program 1 times [2021-11-21 01:40:14,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:14,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406838574] [2021-11-21 01:40:14,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:14,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:40:15,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:15,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406838574] [2021-11-21 01:40:15,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406838574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:15,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:15,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:15,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430359644] [2021-11-21 01:40:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:15,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:15,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:15,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:15,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:15,280 INFO L87 Difference]: Start difference. First operand 11050 states and 16104 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) [2021-11-21 01:40:17,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:20,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:23,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:33,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:33,147 INFO L93 Difference]: Finished difference Result 28737 states and 41649 transitions. [2021-11-21 01:40:33,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:33,148 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 [2021-11-21 01:40:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:33,291 INFO L225 Difference]: With dead ends: 28737 [2021-11-21 01:40:33,291 INFO L226 Difference]: Without dead ends: 17724 [2021-11-21 01:40:33,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:33,362 INFO L933 BasicCegarLoop]: 5754 mSDtfsCounter, 3195 mSDsluCounter, 5346 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:33,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 10384 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1666 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-21 01:40:33,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17724 states. [2021-11-21 01:40:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17724 to 17699. [2021-11-21 01:40:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17699 states, 10703 states have (on average 1.3080444735120995) internal successors, (14000), 11031 states have internal predecessors, (14000), 5767 states have call successors, (5767), 1230 states have call predecessors, (5767), 1226 states have return successors, (5793), 5659 states have call predecessors, (5793), 5763 states have call successors, (5793) [2021-11-21 01:40:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17699 states to 17699 states and 25560 transitions. [2021-11-21 01:40:34,862 INFO L78 Accepts]: Start accepts. Automaton has 17699 states and 25560 transitions. Word has length 217 [2021-11-21 01:40:34,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:34,864 INFO L470 AbstractCegarLoop]: Abstraction has 17699 states and 25560 transitions. [2021-11-21 01:40:34,864 INFO L471 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) [2021-11-21 01:40:34,864 INFO L276 IsEmpty]: Start isEmpty. Operand 17699 states and 25560 transitions. [2021-11-21 01:40:34,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-21 01:40:34,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:34,871 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:40:34,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:40:34,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-21 01:40:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:34,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1681800571, now seen corresponding path program 1 times [2021-11-21 01:40:34,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:34,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640209979] [2021-11-21 01:40:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:34,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-21 01:40:35,397 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:35,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640209979] [2021-11-21 01:40:35,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640209979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:35,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:35,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:40:35,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911372821] [2021-11-21 01:40:35,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:35,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:35,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:35,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:35,400 INFO L87 Difference]: Start difference. First operand 17699 states and 25560 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) [2021-11-21 01:40:38,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:41,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:44,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:45,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:50,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:56,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:56,985 INFO L93 Difference]: Finished difference Result 37813 states and 54653 transitions. [2021-11-21 01:40:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:56,986 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 [2021-11-21 01:40:56,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:57,202 INFO L225 Difference]: With dead ends: 37813 [2021-11-21 01:40:57,203 INFO L226 Difference]: Without dead ends: 20151 [2021-11-21 01:40:57,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:40:57,266 INFO L933 BasicCegarLoop]: 7924 mSDtfsCounter, 4707 mSDsluCounter, 5397 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 12565 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:57,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4709 Valid, 12565 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2102 Invalid, 3 Unknown, 0 Unchecked, 20.9s Time] [2021-11-21 01:40:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20151 states. [2021-11-21 01:40:58,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20151 to 20127. [2021-11-21 01:40:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20127 states, 12266 states have (on average 1.3138757541170716) internal successors, (16116), 12636 states have internal predecessors, (16116), 6455 states have call successors, (6455), 1410 states have call predecessors, (6455), 1403 states have return successors, (6473), 6318 states have call predecessors, (6473), 6451 states have call successors, (6473) [2021-11-21 01:40:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20127 states to 20127 states and 29044 transitions. [2021-11-21 01:40:58,303 INFO L78 Accepts]: Start accepts. Automaton has 20127 states and 29044 transitions. Word has length 219 [2021-11-21 01:40:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:58,305 INFO L470 AbstractCegarLoop]: Abstraction has 20127 states and 29044 transitions. [2021-11-21 01:40:58,305 INFO L471 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) [2021-11-21 01:40:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 20127 states and 29044 transitions. [2021-11-21 01:40:58,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-21 01:40:58,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:58,312 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:40:58,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:40:58,312 INFO L402 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)] === [2021-11-21 01:40:58,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:58,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1538615749, now seen corresponding path program 1 times [2021-11-21 01:40:58,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:58,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088456770] [2021-11-21 01:40:58,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:58,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-21 01:40:59,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:59,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088456770] [2021-11-21 01:40:59,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088456770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:59,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:59,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:40:59,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921894050] [2021-11-21 01:40:59,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:59,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:40:59,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:40:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:59,136 INFO L87 Difference]: Start difference. First operand 20127 states and 29044 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) [2021-11-21 01:41:02,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:05,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:08,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:10,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:12,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:15,676 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:17,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:20,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:28,687 INFO L93 Difference]: Finished difference Result 21712 states and 31265 transitions. [2021-11-21 01:41:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:41:28,688 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 [2021-11-21 01:41:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:28,809 INFO L225 Difference]: With dead ends: 21712 [2021-11-21 01:41:28,809 INFO L226 Difference]: Without dead ends: 21710 [2021-11-21 01:41:28,823 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:41:28,824 INFO L933 BasicCegarLoop]: 5439 mSDtfsCounter, 5375 mSDsluCounter, 14786 mSDsCounter, 0 mSdLazyCounter, 2876 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 18198 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2876 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:28,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5384 Valid, 18198 Invalid, 2882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2876 Invalid, 5 Unknown, 0 Unchecked, 28.9s Time] [2021-11-21 01:41:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21710 states. [2021-11-21 01:41:29,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21710 to 21705. [2021-11-21 01:41:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21705 states, 13238 states have (on average 1.313340383743768) internal successors, (17386), 13640 states have internal predecessors, (17386), 6925 states have call successors, (6925), 1545 states have call predecessors, (6925), 1539 states have return successors, (6949), 6780 states have call predecessors, (6949), 6921 states have call successors, (6949) [2021-11-21 01:41:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21705 states to 21705 states and 31260 transitions. [2021-11-21 01:41:29,988 INFO L78 Accepts]: Start accepts. Automaton has 21705 states and 31260 transitions. Word has length 243 [2021-11-21 01:41:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:29,989 INFO L470 AbstractCegarLoop]: Abstraction has 21705 states and 31260 transitions. [2021-11-21 01:41:29,989 INFO L471 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) [2021-11-21 01:41:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 21705 states and 31260 transitions. [2021-11-21 01:41:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2021-11-21 01:41:29,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:29,997 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:29,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:41:29,998 INFO L402 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)] === [2021-11-21 01:41:29,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:29,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1404846011, now seen corresponding path program 1 times [2021-11-21 01:41:29,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:29,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580832171] [2021-11-21 01:41:29,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:30,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:30,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2021-11-21 01:41:30,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:30,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580832171] [2021-11-21 01:41:30,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580832171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:30,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:30,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:41:30,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820111218] [2021-11-21 01:41:30,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:30,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:41:30,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:41:30,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:30,918 INFO L87 Difference]: Start difference. First operand 21705 states and 31260 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 01:41:34,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:37,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:40,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:42,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:43,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:57,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:57,502 INFO L93 Difference]: Finished difference Result 21716 states and 31268 transitions. [2021-11-21 01:41:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:41:57,510 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 252 [2021-11-21 01:41:57,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:57,614 INFO L225 Difference]: With dead ends: 21716 [2021-11-21 01:41:57,614 INFO L226 Difference]: Without dead ends: 21714 [2021-11-21 01:41:57,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:41:57,625 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5369 mSDsluCounter, 14786 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5377 SdHoareTripleChecker+Valid, 18201 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:57,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5377 Valid, 18201 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2877 Invalid, 4 Unknown, 0 Unchecked, 25.9s Time] [2021-11-21 01:41:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21714 states. [2021-11-21 01:41:58,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21714 to 21709. [2021-11-21 01:41:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21709 states, 13241 states have (on average 1.3132693905294162) internal successors, (17389), 13643 states have internal predecessors, (17389), 6925 states have call successors, (6925), 1546 states have call predecessors, (6925), 1540 states have return successors, (6949), 6780 states have call predecessors, (6949), 6921 states have call successors, (6949) [2021-11-21 01:41:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21709 states to 21709 states and 31263 transitions. [2021-11-21 01:41:58,903 INFO L78 Accepts]: Start accepts. Automaton has 21709 states and 31263 transitions. Word has length 252 [2021-11-21 01:41:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:58,906 INFO L470 AbstractCegarLoop]: Abstraction has 21709 states and 31263 transitions. [2021-11-21 01:41:58,906 INFO L471 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 01:41:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 21709 states and 31263 transitions. [2021-11-21 01:41:58,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-21 01:41:58,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:58,916 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:41:58,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:41:58,916 INFO L402 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)] === [2021-11-21 01:41:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:58,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1326284235, now seen corresponding path program 1 times [2021-11-21 01:41:58,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:58,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644400503] [2021-11-21 01:41:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:58,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-21 01:41:59,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644400503] [2021-11-21 01:41:59,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644400503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:59,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:59,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:41:59,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906045896] [2021-11-21 01:41:59,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:59,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:41:59,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:41:59,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:59,451 INFO L87 Difference]: Start difference. First operand 21709 states and 31263 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) [2021-11-21 01:42:02,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:06,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:08,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:10,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:12,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:17,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:25,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:29,935 INFO L93 Difference]: Finished difference Result 39711 states and 57406 transitions. [2021-11-21 01:42:29,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:42:29,936 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 [2021-11-21 01:42:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:30,181 INFO L225 Difference]: With dead ends: 39711 [2021-11-21 01:42:30,182 INFO L226 Difference]: Without dead ends: 39707 [2021-11-21 01:42:30,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:42:30,206 INFO L933 BasicCegarLoop]: 6087 mSDtfsCounter, 5175 mSDsluCounter, 18676 mSDsCounter, 0 mSdLazyCounter, 3254 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5176 SdHoareTripleChecker+Valid, 22374 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3254 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:30,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5176 Valid, 22374 Invalid, 3261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3254 Invalid, 4 Unknown, 0 Unchecked, 29.3s Time] [2021-11-21 01:42:30,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39707 states. [2021-11-21 01:42:32,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39707 to 39551. [2021-11-21 01:42:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39551 states, 24075 states have (on average 1.3134787123572171) internal successors, (31622), 24805 states have internal predecessors, (31622), 12626 states have call successors, (12626), 2888 states have call predecessors, (12626), 2847 states have return successors, (12945), 12291 states have call predecessors, (12945), 12618 states have call successors, (12945) [2021-11-21 01:42:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39551 states to 39551 states and 57193 transitions. [2021-11-21 01:42:32,335 INFO L78 Accepts]: Start accepts. Automaton has 39551 states and 57193 transitions. Word has length 257 [2021-11-21 01:42:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:32,337 INFO L470 AbstractCegarLoop]: Abstraction has 39551 states and 57193 transitions. [2021-11-21 01:42:32,337 INFO L471 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) [2021-11-21 01:42:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 39551 states and 57193 transitions. [2021-11-21 01:42:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-21 01:42:32,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:32,347 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 5, 5, 4, 3, 3, 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] [2021-11-21 01:42:32,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:42:32,348 INFO L402 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)] === [2021-11-21 01:42:32,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:32,349 INFO L85 PathProgramCache]: Analyzing trace with hash -375832209, now seen corresponding path program 1 times [2021-11-21 01:42:32,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:32,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423329965] [2021-11-21 01:42:32,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:32,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1426 trivial. 0 not checked. [2021-11-21 01:42:33,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:33,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423329965] [2021-11-21 01:42:33,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423329965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:33,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:33,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:42:33,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344273075] [2021-11-21 01:42:33,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:33,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:42:33,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:33,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:42:33,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:33,320 INFO L87 Difference]: Start difference. First operand 39551 states and 57193 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) [2021-11-21 01:42:36,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:39,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:42,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:44,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:46,209 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:50,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:53,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:01,709 INFO L93 Difference]: Finished difference Result 39562 states and 57201 transitions. [2021-11-21 01:43:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:43:01,710 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 261 [2021-11-21 01:43:01,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:01,891 INFO L225 Difference]: With dead ends: 39562 [2021-11-21 01:43:01,891 INFO L226 Difference]: Without dead ends: 39468 [2021-11-21 01:43:01,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:43:01,913 INFO L933 BasicCegarLoop]: 5443 mSDtfsCounter, 5369 mSDsluCounter, 14788 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5375 SdHoareTripleChecker+Valid, 18204 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:01,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5375 Valid, 18204 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2872 Invalid, 6 Unknown, 0 Unchecked, 27.4s Time] [2021-11-21 01:43:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39468 states. [2021-11-21 01:43:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39468 to 39463. [2021-11-21 01:43:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39463 states, 24051 states have (on average 1.3127520685210594) internal successors, (31573), 24757 states have internal predecessors, (31573), 12570 states have call successors, (12570), 2875 states have call predecessors, (12570), 2839 states have return successors, (12893), 12264 states have call predecessors, (12893), 12566 states have call successors, (12893) [2021-11-21 01:43:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39463 states to 39463 states and 57036 transitions. [2021-11-21 01:43:04,183 INFO L78 Accepts]: Start accepts. Automaton has 39463 states and 57036 transitions. Word has length 261 [2021-11-21 01:43:04,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:04,184 INFO L470 AbstractCegarLoop]: Abstraction has 39463 states and 57036 transitions. [2021-11-21 01:43:04,184 INFO L471 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) [2021-11-21 01:43:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 39463 states and 57036 transitions. [2021-11-21 01:43:04,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-21 01:43:04,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:04,197 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:43:04,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:43:04,198 INFO L402 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)] === [2021-11-21 01:43:04,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:04,198 INFO L85 PathProgramCache]: Analyzing trace with hash 160528995, now seen corresponding path program 1 times [2021-11-21 01:43:04,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:04,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833801143] [2021-11-21 01:43:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:04,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:04,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2021-11-21 01:43:04,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:04,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833801143] [2021-11-21 01:43:04,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833801143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:04,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:04,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:04,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69986097] [2021-11-21 01:43:04,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:04,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:04,969 INFO L87 Difference]: Start difference. First operand 39463 states and 57036 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) [2021-11-21 01:43:08,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:11,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:13,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:14,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:19,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:26,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:27,689 INFO L93 Difference]: Finished difference Result 92532 states and 133907 transitions. [2021-11-21 01:43:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:27,689 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 [2021-11-21 01:43:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:28,100 INFO L225 Difference]: With dead ends: 92532 [2021-11-21 01:43:28,100 INFO L226 Difference]: Without dead ends: 53565 [2021-11-21 01:43:28,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:28,252 INFO L933 BasicCegarLoop]: 8413 mSDtfsCounter, 4699 mSDsluCounter, 5392 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4701 SdHoareTripleChecker+Valid, 13050 SdHoareTripleChecker+Invalid, 2219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:28,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4701 Valid, 13050 Invalid, 2219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2201 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2021-11-21 01:43:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53565 states. [2021-11-21 01:43:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53565 to 53532. [2021-11-21 01:43:30,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53532 states, 32720 states have (on average 1.3156479217603911) internal successors, (43048), 33670 states have internal predecessors, (43048), 16980 states have call successors, (16980), 3880 states have call predecessors, (16980), 3829 states have return successors, (17371), 16558 states have call predecessors, (17371), 16976 states have call successors, (17371) [2021-11-21 01:43:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53532 states to 53532 states and 77399 transitions. [2021-11-21 01:43:30,736 INFO L78 Accepts]: Start accepts. Automaton has 53532 states and 77399 transitions. Word has length 266 [2021-11-21 01:43:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:30,737 INFO L470 AbstractCegarLoop]: Abstraction has 53532 states and 77399 transitions. [2021-11-21 01:43:30,737 INFO L471 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) [2021-11-21 01:43:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 53532 states and 77399 transitions. [2021-11-21 01:43:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-21 01:43:30,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:30,748 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:43:30,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:43:30,749 INFO L402 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)] === [2021-11-21 01:43:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash -24154664, now seen corresponding path program 1 times [2021-11-21 01:43:30,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:30,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851133548] [2021-11-21 01:43:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:30,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2021-11-21 01:43:31,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851133548] [2021-11-21 01:43:31,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851133548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:31,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:31,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:43:31,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576844049] [2021-11-21 01:43:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:31,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:43:31,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:31,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:43:31,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:31,452 INFO L87 Difference]: Start difference. First operand 53532 states and 77399 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) [2021-11-21 01:43:35,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:37,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:40,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:42,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:54,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:54,841 INFO L93 Difference]: Finished difference Result 131190 states and 189800 transitions. [2021-11-21 01:43:54,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:43:54,842 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 [2021-11-21 01:43:54,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:55,333 INFO L225 Difference]: With dead ends: 131190 [2021-11-21 01:43:55,334 INFO L226 Difference]: Without dead ends: 78154 [2021-11-21 01:43:55,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:43:55,521 INFO L933 BasicCegarLoop]: 9277 mSDtfsCounter, 5330 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5336 SdHoareTripleChecker+Valid, 13949 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:55,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5336 Valid, 13949 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2298 Invalid, 4 Unknown, 0 Unchecked, 20.5s Time] [2021-11-21 01:43:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78154 states. [2021-11-21 01:43:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78154 to 78106. [2021-11-21 01:43:58,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78106 states, 47702 states have (on average 1.3152488365267703) internal successors, (62740), 49099 states have internal predecessors, (62740), 24825 states have call successors, (24825), 5650 states have call predecessors, (24825), 5576 states have return successors, (25421), 24195 states have call predecessors, (25421), 24821 states have call successors, (25421) [2021-11-21 01:43:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78106 states to 78106 states and 112986 transitions. [2021-11-21 01:43:59,168 INFO L78 Accepts]: Start accepts. Automaton has 78106 states and 112986 transitions. Word has length 268 [2021-11-21 01:43:59,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:59,169 INFO L470 AbstractCegarLoop]: Abstraction has 78106 states and 112986 transitions. [2021-11-21 01:43:59,169 INFO L471 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) [2021-11-21 01:43:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 78106 states and 112986 transitions. [2021-11-21 01:43:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-21 01:43:59,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:59,186 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:43:59,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:43:59,187 INFO L402 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)] === [2021-11-21 01:43:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash 490273932, now seen corresponding path program 1 times [2021-11-21 01:43:59,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:59,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68097159] [2021-11-21 01:43:59,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:59,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2021-11-21 01:43:59,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:59,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68097159] [2021-11-21 01:43:59,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68097159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:59,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:59,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:59,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445298834] [2021-11-21 01:43:59,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:59,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:59,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:59,884 INFO L87 Difference]: Start difference. First operand 78106 states and 112986 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) [2021-11-21 01:44:04,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:06,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:10,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:12,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:16,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:18,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:20,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:22,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:25,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:28,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:30,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:31,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:36,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:53,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:53,312 INFO L93 Difference]: Finished difference Result 180480 states and 261169 transitions. [2021-11-21 01:44:53,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:44:53,312 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 [2021-11-21 01:44:53,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:53,870 INFO L225 Difference]: With dead ends: 180480 [2021-11-21 01:44:53,871 INFO L226 Difference]: Without dead ends: 102870 [2021-11-21 01:44:54,375 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:44:54,376 INFO L933 BasicCegarLoop]: 9284 mSDtfsCounter, 5342 mSDsluCounter, 27037 mSDsCounter, 0 mSdLazyCounter, 5345 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 32526 SdHoareTripleChecker+Invalid, 5354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5345 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:54,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5350 Valid, 32526 Invalid, 5354 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 5345 Invalid, 8 Unknown, 0 Unchecked, 49.1s Time] [2021-11-21 01:44:54,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102870 states. [2021-11-21 01:44:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102870 to 102748. [2021-11-21 01:44:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102748 states, 62724 states have (on average 1.3150947005930744) internal successors, (82488), 64568 states have internal predecessors, (82488), 32686 states have call successors, (32686), 7420 states have call predecessors, (32686), 7335 states have return successors, (33507), 31860 states have call predecessors, (33507), 32682 states have call successors, (33507) [2021-11-21 01:44:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102748 states to 102748 states and 148681 transitions. [2021-11-21 01:44:59,537 INFO L78 Accepts]: Start accepts. Automaton has 102748 states and 148681 transitions. Word has length 292 [2021-11-21 01:44:59,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:59,554 INFO L470 AbstractCegarLoop]: Abstraction has 102748 states and 148681 transitions. [2021-11-21 01:44:59,554 INFO L471 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) [2021-11-21 01:44:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 102748 states and 148681 transitions. [2021-11-21 01:44:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-21 01:44:59,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:59,581 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:44:59,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:44:59,583 INFO L402 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)] === [2021-11-21 01:44:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:59,584 INFO L85 PathProgramCache]: Analyzing trace with hash -470600145, now seen corresponding path program 1 times [2021-11-21 01:44:59,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:59,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982457468] [2021-11-21 01:44:59,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:59,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2021-11-21 01:45:00,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:00,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982457468] [2021-11-21 01:45:00,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982457468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:00,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:00,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:45:00,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830092881] [2021-11-21 01:45:00,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:00,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:45:00,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:45:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:00,029 INFO L87 Difference]: Start difference. First operand 102748 states and 148681 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) [2021-11-21 01:45:05,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:09,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:12,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:14,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:15,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:17,504 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:19,560 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:23,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:27,493 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:31,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:33,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:53,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:53,820 INFO L93 Difference]: Finished difference Result 229812 states and 332643 transitions. [2021-11-21 01:45:53,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:45:53,821 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 293 [2021-11-21 01:45:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:54,527 INFO L225 Difference]: With dead ends: 229812 [2021-11-21 01:45:54,527 INFO L226 Difference]: Without dead ends: 127560 [2021-11-21 01:45:55,151 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:45:55,152 INFO L933 BasicCegarLoop]: 9269 mSDtfsCounter, 5343 mSDsluCounter, 26993 mSDsCounter, 0 mSdLazyCounter, 5335 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 32480 SdHoareTripleChecker+Invalid, 5343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5335 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:55,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5349 Valid, 32480 Invalid, 5343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5335 Invalid, 5 Unknown, 0 Unchecked, 48.0s Time] [2021-11-21 01:45:55,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127560 states. [2021-11-21 01:46:00,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127560 to 127414. [2021-11-21 01:46:00,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127414 states, 77770 states have (on average 1.314902918863315) internal successors, (102260), 80061 states have internal predecessors, (102260), 40547 states have call successors, (40547), 9190 states have call predecessors, (40547), 9094 states have return successors, (41593), 39525 states have call predecessors, (41593), 40543 states have call successors, (41593) [2021-11-21 01:46:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127414 states to 127414 states and 184400 transitions. [2021-11-21 01:46:01,401 INFO L78 Accepts]: Start accepts. Automaton has 127414 states and 184400 transitions. Word has length 293 [2021-11-21 01:46:01,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:01,402 INFO L470 AbstractCegarLoop]: Abstraction has 127414 states and 184400 transitions. [2021-11-21 01:46:01,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-21 01:46:01,402 INFO L276 IsEmpty]: Start isEmpty. Operand 127414 states and 184400 transitions. [2021-11-21 01:46:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-21 01:46:01,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:01,422 INFO L514 BasicCegarLoop]: 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, 1] [2021-11-21 01:46:01,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:46:01,422 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-21 01:46:01,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1362458882, now seen corresponding path program 1 times [2021-11-21 01:46:01,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:01,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416207378] [2021-11-21 01:46:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:01,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2021-11-21 01:46:02,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:02,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416207378] [2021-11-21 01:46:02,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416207378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:46:02,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:46:02,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:46:02,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480385643] [2021-11-21 01:46:02,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:46:02,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:46:02,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:46:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:46:02,643 INFO L87 Difference]: Start difference. First operand 127414 states and 184400 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 01:46:06,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:46:10,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:13,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:16,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:18,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:22,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []