./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7 --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 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:25:09,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:25:09,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:25:09,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:25:09,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:25:09,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:25:09,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:25:09,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:25:09,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:25:09,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:25:09,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:25:09,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:25:09,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:25:09,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:25:09,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:25:09,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:25:09,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:25:09,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:25:09,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:25:09,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:25:09,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:25:09,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:25:09,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:25:09,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:25:09,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:25:09,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:25:09,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:25:09,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:25:09,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:25:09,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:25:09,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:25:09,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:25:09,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:25:09,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:25:09,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:25:09,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:25:09,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:25:09,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:25:09,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:25:09,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:25:09,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:25:09,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:25:09,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:25:09,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:25:09,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:25:09,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:25:09,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:25:09,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:25:09,663 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:25:09,664 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:25:09,664 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:25:09,664 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:25:09,665 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:25:09,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:25:09,666 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:25:09,666 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:25:09,666 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:25:09,667 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:25:09,667 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:25:09,667 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:25:09,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:25:09,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:25:09,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:25:09,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:25:09,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:25:09,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:25:09,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:25:09,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:25:09,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:25:09,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:25:09,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:25:09,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:09,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:25:09,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:25:09,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:25:09,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:25:09,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:25:09,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:25:09,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:25:09,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:25:09,675 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70e4e56f3340c1b20d9142537fb15f82141ddbe721f83e6a5c46f084f6374a2 [2021-11-25 20:25:09,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:25:09,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:25:09,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:25:09,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:25:09,964 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:25:09,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:25:10,069 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/data/390b0e2e0/ac5eb02554c242e8b018390bb5a65857/FLAGd00b5bc06 [2021-11-25 20:25:11,175 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:25:11,176 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:25:11,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/data/390b0e2e0/ac5eb02554c242e8b018390bb5a65857/FLAGd00b5bc06 [2021-11-25 20:25:11,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/data/390b0e2e0/ac5eb02554c242e8b018390bb5a65857 [2021-11-25 20:25:11,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:25:11,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:25:11,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:11,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:25:11,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:25:11,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:11" (1/1) ... [2021-11-25 20:25:11,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2fcfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:11, skipping insertion in model container [2021-11-25 20:25:11,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:25:11" (1/1) ... [2021-11-25 20:25:11,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:25:11,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:25:18,773 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:18,776 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:18,777 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:18,778 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:18,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:18,894 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:25:19,686 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:19,687 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:19,688 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:19,688 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_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/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] [2021-11-25 20:25:19,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:25:20,172 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:25:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20 WrapperNode [2021-11-25 20:25:20,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:25:20,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:20,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:25:20,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:25:20,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:20,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:20,922 INFO L137 Inliner]: procedures = 702, calls = 7462, calls flagged for inlining = 381, calls inlined = 353, statements flattened = 15735 [2021-11-25 20:25:20,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:25:20,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:25:20,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:25:20,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:25:20,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:20,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:21,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:21,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:21,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:21,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:21,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:22,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:25:22,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:25:22,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:25:22,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:25:22,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (1/1) ... [2021-11-25 20:25:22,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:25:22,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:22,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:25:22,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_269aa5a6-bff0-49ea-a9b2-6bb82f8a6bb2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-25 20:25:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-25 20:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-25 20:25:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-25 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-25 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:25:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:25:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-25 20:25:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-25 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-25 20:25:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-25 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-25 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-25 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-25 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-25 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-25 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-25 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-25 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-25 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-25 20:25:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-25 20:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-25 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-25 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-25 20:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-25 20:25:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-25 20:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-25 20:25:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-25 20:25:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:25:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:25:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 20:25:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 20:25:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:25:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:25:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 20:25:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 20:25:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 20:25:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 20:25:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-25 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-25 20:25:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-25 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-25 20:25:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:25:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-25 20:25:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-25 20:25:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-25 20:25:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-25 20:25:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-25 20:25:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-25 20:25:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-25 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-25 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-25 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-25 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-25 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-25 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:25:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-25 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-25 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-25 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-25 20:25:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:25:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-25 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-25 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:25:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-25 20:25:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:25:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-25 20:25:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 20:25:22,318 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 20:25:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:25:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:25:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:25:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 20:25:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 20:25:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-25 20:25:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-25 20:25:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-25 20:25:22,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-25 20:25:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-25 20:25:22,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-25 20:25:22,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-25 20:25:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-25 20:25:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-25 20:25:22,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-25 20:25:22,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 20:25:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 20:25:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-25 20:25:22,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-25 20:25:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-25 20:25:22,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-25 20:25:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-25 20:25:22,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-25 20:25:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-25 20:25:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-25 20:25:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-25 20:25:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-25 20:25:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:25:22,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:25:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-25 20:25:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-25 20:25:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 20:25:22,338 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 20:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-25 20:25:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_qlge_driver_exit_16_2 [2021-11-25 20:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-25 20:25:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-25 20:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-25 20:25:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-25 20:25:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:25:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-25 20:25:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-25 20:25:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-25 20:25:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-25 20:25:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:25:22,341 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:25:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:25:22,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:25:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-25 20:25:22,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-25 20:25:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-25 20:25:22,342 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-25 20:25:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-25 20:25:22,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-25 20:25:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:25:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-25 20:25:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-25 20:25:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:25:22,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:25:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:25:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:25:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:25:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:25:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:25:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:25:22,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:25:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-25 20:25:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-25 20:25:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:25:22,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:25:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-25 20:25:22,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-25 20:25:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-25 20:25:22,346 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-25 20:25:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:25:22,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:25:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-25 20:25:22,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-25 20:25:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-25 20:25:22,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-25 20:25:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-25 20:25:22,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-25 20:25:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-25 20:25:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-25 20:25:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-25 20:25:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-25 20:25:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:25:22,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:25:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:25:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:25:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:25:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-25 20:25:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-25 20:25:22,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-25 20:25:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-25 20:25:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-25 20:25:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:25:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-25 20:25:22,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-25 20:25:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:25:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:25:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:25:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:25:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 20:25:22,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 20:25:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-25 20:25:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-25 20:25:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 20:25:22,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 20:25:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-25 20:25:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-25 20:25:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:25:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 20:25:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 20:25:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:25:22,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:25:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:25:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:25:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:25:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 20:25:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-25 20:25:22,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-25 20:25:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-25 20:25:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-25 20:25:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:25:22,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 20:25:22,355 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 20:25:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 20:25:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-25 20:25:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-25 20:25:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:25:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 20:25:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-25 20:25:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-25 20:25:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-25 20:25:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-25 20:25:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-25 20:25:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-25 20:25:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-25 20:25:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-25 20:25:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 20:25:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 20:25:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-25 20:25:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-25 20:25:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:25:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:25:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:25:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:25:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:25:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:25:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 20:25:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 20:25:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-25 20:25:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-25 20:25:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-25 20:25:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-25 20:25:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-25 20:25:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-25 20:25:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-25 20:25:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-25 20:25:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 20:25:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 20:25:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 20:25:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 20:25:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-25 20:25:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpi_mutex_of_ql_adapter [2021-11-25 20:25:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:25:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:25:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-25 20:25:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-25 20:25:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-25 20:25:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-25 20:25:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-25 20:25:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-25 20:25:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-25 20:25:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-25 20:25:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-25 20:25:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-25 20:25:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-25 20:25:22,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-25 20:25:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:25:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:25:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:25:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:25:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-25 20:25:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-25 20:25:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-25 20:25:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-25 20:25:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:25:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 20:25:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-25 20:25:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-25 20:25:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-25 20:25:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-25 20:25:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 20:25:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 20:25:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:25:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:25:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-25 20:25:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-25 20:25:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 20:25:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-25 20:25:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-25 20:25:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 20:25:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 20:25:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-25 20:25:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-25 20:25:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-25 20:25:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-25 20:25:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:25:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:25:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-25 20:25:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-25 20:25:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-25 20:25:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-25 20:25:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-25 20:25:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-25 20:25:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-25 20:25:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpi_mutex_of_ql_adapter [2021-11-25 20:25:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-25 20:25:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-25 20:25:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:25:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:25:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-25 20:25:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-25 20:25:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-25 20:25:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-25 20:25:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 20:25:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 20:25:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:25:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:25:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-25 20:25:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-25 20:25:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-25 20:25:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-25 20:25:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 20:25:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 20:25:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-25 20:25:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-25 20:25:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-25 20:25:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-25 20:25:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-25 20:25:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-25 20:25:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-25 20:25:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-25 20:25:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:25:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:25:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-25 20:25:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-25 20:25:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:25:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:25:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:25:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-25 20:25:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-25 20:25:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-25 20:25:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-25 20:25:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-25 20:25:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-25 20:25:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:25:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:25:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-25 20:25:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-25 20:25:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:25:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-25 20:25:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-25 20:25:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-25 20:25:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-25 20:25:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-25 20:25:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-25 20:25:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-25 20:25:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-25 20:25:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 20:25:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 20:25:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:25:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-25 20:25:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-25 20:25:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-25 20:25:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-25 20:25:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-25 20:25:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-25 20:25:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-25 20:25:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-25 20:25:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:25:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:25:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 20:25:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 20:25:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:25:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:25:22,404 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 20:25:22,404 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 20:25:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 20:25:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 20:25:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-25 20:25:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-25 20:25:22,405 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-25 20:25:22,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-25 20:25:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-25 20:25:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-25 20:25:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 20:25:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 20:25:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-25 20:25:22,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-25 20:25:22,406 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 20:25:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 20:25:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:25:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 20:25:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:25:22,407 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:25:22,407 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 20:25:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 20:25:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-25 20:25:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-25 20:25:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-25 20:25:22,408 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-25 20:25:22,408 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-25 20:25:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-25 20:25:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-25 20:25:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-25 20:25:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 20:25:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 20:25:22,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 20:25:22,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 20:25:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-25 20:25:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-25 20:25:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:25:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:25:22,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:25:22,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 20:25:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-25 20:25:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-25 20:25:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:25:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-25 20:25:22,411 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-25 20:25:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:25:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:25:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-25 20:25:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-25 20:25:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 20:25:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 20:25:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 20:25:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 20:25:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-25 20:25:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-25 20:25:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-25 20:25:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-25 20:25:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-25 20:25:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-25 20:25:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-25 20:25:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-25 20:25:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-25 20:25:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-25 20:25:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-25 20:25:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-25 20:25:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:25:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-25 20:25:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-25 20:25:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-25 20:25:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-25 20:25:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-25 20:25:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-25 20:25:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-25 20:25:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-25 20:25:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-25 20:25:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-25 20:25:22,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-25 20:25:22,416 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-25 20:25:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-25 20:25:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-25 20:25:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-25 20:25:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:25:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:25:22,417 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-25 20:25:22,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-25 20:25:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-25 20:25:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-25 20:25:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:25:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-25 20:25:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-25 20:25:22,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-25 20:25:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 20:25:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 20:25:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-25 20:25:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-25 20:25:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-25 20:25:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-25 20:25:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-25 20:25:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-25 20:25:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-25 20:25:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-25 20:25:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:25:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:25:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 20:25:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 20:25:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-25 20:25:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:25:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-25 20:25:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-25 20:25:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-25 20:25:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-25 20:25:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-25 20:25:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-25 20:25:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:25:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:25:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-25 20:25:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-25 20:25:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-25 20:25:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-25 20:25:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-25 20:25:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-25 20:25:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-25 20:25:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-25 20:25:24,058 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:25:24,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:25:24,326 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:25:50,147 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:25:51,077 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:25:56,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:25:56,988 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 20:25:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:25:56 BoogieIcfgContainer [2021-11-25 20:25:56,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:25:56,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:25:56,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:25:57,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:25:57,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:25:11" (1/3) ... [2021-11-25 20:25:57,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e59f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:25:57, skipping insertion in model container [2021-11-25 20:25:57,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:25:20" (2/3) ... [2021-11-25 20:25:57,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e59f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:25:57, skipping insertion in model container [2021-11-25 20:25:57,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:25:56" (3/3) ... [2021-11-25 20:25:57,007 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-25 20:25:57,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:25:57,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-25 20:25:57,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:25:57,107 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 [2021-11-25 20:25:57,108 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 20:25:57,215 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) [2021-11-25 20:25:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-25 20:25:57,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:57,245 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] [2021-11-25 20:25:57,245 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)] === [2021-11-25 20:25:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1831336755, now seen corresponding path program 1 times [2021-11-25 20:25:57,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:57,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224286055] [2021-11-25 20:25:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:57,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-25 20:25:58,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:58,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224286055] [2021-11-25 20:25:58,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224286055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:58,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:58,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:25:58,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313085572] [2021-11-25 20:25:58,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:58,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:25:58,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:58,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:25:58,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:58,488 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) [2021-11-25 20:26:02,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:05,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:09,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:12,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:17,458 INFO L93 Difference]: Finished difference Result 11130 states and 16361 transitions. [2021-11-25 20:26:17,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:17,461 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 [2021-11-25 20:26:17,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:17,558 INFO L225 Difference]: With dead ends: 11130 [2021-11-25 20:26:17,558 INFO L226 Difference]: Without dead ends: 7393 [2021-11-25 20:26:17,594 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 [2021-11-25 20:26:17,598 INFO L933 BasicCegarLoop]: 6127 mSDtfsCounter, 5331 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s 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, 18.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:17,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 10801 Invalid, 1612 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1602 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2021-11-25 20:26:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7393 states. [2021-11-25 20:26:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7393 to 7387. [2021-11-25 20:26:18,079 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) [2021-11-25 20:26:18,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 10770 transitions. [2021-11-25 20:26:18,168 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 10770 transitions. Word has length 201 [2021-11-25 20:26:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:18,170 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 10770 transitions. [2021-11-25 20:26:18,170 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) [2021-11-25 20:26:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 10770 transitions. [2021-11-25 20:26:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-25 20:26:18,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:18,177 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] [2021-11-25 20:26:18,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:26:18,178 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)] === [2021-11-25 20:26:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:18,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1119012572, now seen corresponding path program 1 times [2021-11-25 20:26:18,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:18,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954171560] [2021-11-25 20:26:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:18,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-25 20:26:19,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:19,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954171560] [2021-11-25 20:26:19,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954171560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:19,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:19,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:26:19,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427949720] [2021-11-25 20:26:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:19,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:19,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:19,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:19,296 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) [2021-11-25 20:26:22,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:25,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:29,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:32,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:37,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:40,006 INFO L93 Difference]: Finished difference Result 18421 states and 26847 transitions. [2021-11-25 20:26:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:40,007 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 [2021-11-25 20:26:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:40,104 INFO L225 Difference]: With dead ends: 18421 [2021-11-25 20:26:40,104 INFO L226 Difference]: Without dead ends: 11071 [2021-11-25 20:26:40,150 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 [2021-11-25 20:26:40,153 INFO L933 BasicCegarLoop]: 5911 mSDtfsCounter, 5346 mSDsluCounter, 5438 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 10587 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:40,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5349 Valid, 10587 Invalid, 1566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1556 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2021-11-25 20:26:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2021-11-25 20:26:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 11051. [2021-11-25 20:26:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11051 states, 6682 states have (on average 1.3150254414845854) internal successors, (8787), 6878 states have internal predecessors, (8787), 3655 states have call successors, (3655), 712 states have call predecessors, (3655), 711 states have return successors, (3660), 3595 states have call predecessors, (3660), 3651 states have call successors, (3660) [2021-11-25 20:26:40,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11051 states to 11051 states and 16102 transitions. [2021-11-25 20:26:40,966 INFO L78 Accepts]: Start accepts. Automaton has 11051 states and 16102 transitions. Word has length 211 [2021-11-25 20:26:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:40,967 INFO L470 AbstractCegarLoop]: Abstraction has 11051 states and 16102 transitions. [2021-11-25 20:26:40,968 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) [2021-11-25 20:26:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 11051 states and 16102 transitions. [2021-11-25 20:26:40,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-25 20:26:40,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:40,975 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] [2021-11-25 20:26:40,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:26:40,976 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)] === [2021-11-25 20:26:40,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:40,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1313545342, now seen corresponding path program 1 times [2021-11-25 20:26:40,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:40,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805713250] [2021-11-25 20:26:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:40,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-25 20:26:41,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:41,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805713250] [2021-11-25 20:26:41,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805713250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:26:41,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:26:41,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:26:41,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242506835] [2021-11-25 20:26:41,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:26:41,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:26:41,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:26:41,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:26:41,551 INFO L87 Difference]: Start difference. First operand 11051 states and 16102 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) [2021-11-25 20:26:44,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:26:46,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:49,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:52,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:26:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:59,916 INFO L93 Difference]: Finished difference Result 28740 states and 41646 transitions. [2021-11-25 20:26:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:26:59,917 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 [2021-11-25 20:26:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:00,062 INFO L225 Difference]: With dead ends: 28740 [2021-11-25 20:27:00,062 INFO L226 Difference]: Without dead ends: 17726 [2021-11-25 20:27:00,132 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 [2021-11-25 20:27:00,133 INFO L933 BasicCegarLoop]: 5759 mSDtfsCounter, 3195 mSDsluCounter, 5346 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 10389 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:00,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 10389 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1668 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2021-11-25 20:27:00,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2021-11-25 20:27:01,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17700. [2021-11-25 20:27:01,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17700 states, 10704 states have (on average 1.3080156950672646) internal successors, (14001), 11031 states have internal predecessors, (14001), 5767 states have call successors, (5767), 1230 states have call predecessors, (5767), 1226 states have return successors, (5790), 5660 states have call predecessors, (5790), 5763 states have call successors, (5790) [2021-11-25 20:27:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17700 states to 17700 states and 25558 transitions. [2021-11-25 20:27:01,183 INFO L78 Accepts]: Start accepts. Automaton has 17700 states and 25558 transitions. Word has length 217 [2021-11-25 20:27:01,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:01,187 INFO L470 AbstractCegarLoop]: Abstraction has 17700 states and 25558 transitions. [2021-11-25 20:27:01,187 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) [2021-11-25 20:27:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17700 states and 25558 transitions. [2021-11-25 20:27:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-25 20:27:01,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:01,195 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] [2021-11-25 20:27:01,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:27:01,195 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)] === [2021-11-25 20:27:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:01,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1681800571, now seen corresponding path program 1 times [2021-11-25 20:27:01,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:01,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625668704] [2021-11-25 20:27:01,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:01,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2021-11-25 20:27:01,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:01,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625668704] [2021-11-25 20:27:01,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625668704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:01,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:01,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:27:01,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056230134] [2021-11-25 20:27:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:01,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:27:01,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:27:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:27:01,752 INFO L87 Difference]: Start difference. First operand 17700 states and 25558 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) [2021-11-25 20:27:04,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:07,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:10,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:11,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:19,875 INFO L93 Difference]: Finished difference Result 37816 states and 54650 transitions. [2021-11-25 20:27:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:27:19,876 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 [2021-11-25 20:27:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:19,975 INFO L225 Difference]: With dead ends: 37816 [2021-11-25 20:27:19,976 INFO L226 Difference]: Without dead ends: 20153 [2021-11-25 20:27:20,039 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 [2021-11-25 20:27:20,040 INFO L933 BasicCegarLoop]: 7825 mSDtfsCounter, 4707 mSDsluCounter, 5396 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4709 SdHoareTripleChecker+Valid, 12466 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:20,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4709 Valid, 12466 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2077 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2021-11-25 20:27:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20153 states. [2021-11-25 20:27:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20153 to 20128. [2021-11-25 20:27:20,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20128 states, 12267 states have (on average 1.313850167115024) internal successors, (16117), 12636 states have internal predecessors, (16117), 6455 states have call successors, (6455), 1410 states have call predecessors, (6455), 1403 states have return successors, (6470), 6319 states have call predecessors, (6470), 6451 states have call successors, (6470) [2021-11-25 20:27:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20128 states to 20128 states and 29042 transitions. [2021-11-25 20:27:21,105 INFO L78 Accepts]: Start accepts. Automaton has 20128 states and 29042 transitions. Word has length 219 [2021-11-25 20:27:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:21,106 INFO L470 AbstractCegarLoop]: Abstraction has 20128 states and 29042 transitions. [2021-11-25 20:27:21,106 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) [2021-11-25 20:27:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 20128 states and 29042 transitions. [2021-11-25 20:27:21,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 20:27:21,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:21,113 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] [2021-11-25 20:27:21,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:27:21,114 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)] === [2021-11-25 20:27:21,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1538615749, now seen corresponding path program 1 times [2021-11-25 20:27:21,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:21,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432251975] [2021-11-25 20:27:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:21,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-25 20:27:21,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:21,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432251975] [2021-11-25 20:27:21,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432251975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:21,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:21,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:21,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979565206] [2021-11-25 20:27:21,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:21,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:21,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:21,909 INFO L87 Difference]: Start difference. First operand 20128 states and 29042 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) [2021-11-25 20:27:25,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:28,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:30,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:33,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:27:44,703 INFO L93 Difference]: Finished difference Result 23267 states and 33450 transitions. [2021-11-25 20:27:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:27:44,704 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 [2021-11-25 20:27:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:27:44,945 INFO L225 Difference]: With dead ends: 23267 [2021-11-25 20:27:44,946 INFO L226 Difference]: Without dead ends: 23265 [2021-11-25 20:27:44,955 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 [2021-11-25 20:27:44,956 INFO L933 BasicCegarLoop]: 5439 mSDtfsCounter, 5375 mSDsluCounter, 14786 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 18198 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:27:44,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5384 Valid, 18198 Invalid, 2882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2878 Invalid, 3 Unknown, 0 Unchecked, 22.1s Time] [2021-11-25 20:27:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23265 states. [2021-11-25 20:27:45,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23265 to 23259. [2021-11-25 20:27:46,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23259 states, 14195 states have (on average 1.3130679816836914) internal successors, (18639), 14627 states have internal predecessors, (18639), 7390 states have call successors, (7390), 1677 states have call predecessors, (7390), 1671 states have return successors, (7415), 7238 states have call predecessors, (7415), 7386 states have call successors, (7415) [2021-11-25 20:27:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23259 states to 23259 states and 33444 transitions. [2021-11-25 20:27:46,144 INFO L78 Accepts]: Start accepts. Automaton has 23259 states and 33444 transitions. Word has length 243 [2021-11-25 20:27:46,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:27:46,145 INFO L470 AbstractCegarLoop]: Abstraction has 23259 states and 33444 transitions. [2021-11-25 20:27:46,145 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) [2021-11-25 20:27:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 23259 states and 33444 transitions. [2021-11-25 20:27:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-25 20:27:46,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:27:46,152 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:27:46,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:27:46,153 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)] === [2021-11-25 20:27:46,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:27:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash -611537781, now seen corresponding path program 1 times [2021-11-25 20:27:46,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:27:46,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828919017] [2021-11-25 20:27:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:27:46,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:27:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:27:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-11-25 20:27:47,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:27:47,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828919017] [2021-11-25 20:27:47,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828919017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:27:47,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:27:47,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:27:47,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248474575] [2021-11-25 20:27:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:27:47,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:27:47,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:27:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:27:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:27:47,031 INFO L87 Difference]: Start difference. First operand 23259 states and 33444 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:27:50,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:27:53,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:55,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:57,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:27:59,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:02,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:05,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:14,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:28:14,118 INFO L93 Difference]: Finished difference Result 23271 states and 33453 transitions. [2021-11-25 20:28:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:28:14,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 248 [2021-11-25 20:28:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:28:14,236 INFO L225 Difference]: With dead ends: 23271 [2021-11-25 20:28:14,237 INFO L226 Difference]: Without dead ends: 23269 [2021-11-25 20:28:14,246 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 [2021-11-25 20:28:14,247 INFO L933 BasicCegarLoop]: 5442 mSDtfsCounter, 5370 mSDsluCounter, 14786 mSDsCounter, 0 mSdLazyCounter, 2878 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5378 SdHoareTripleChecker+Valid, 18201 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2878 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:28:14,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5378 Valid, 18201 Invalid, 2882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2878 Invalid, 3 Unknown, 0 Unchecked, 26.3s Time] [2021-11-25 20:28:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23269 states. [2021-11-25 20:28:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23269 to 23263. [2021-11-25 20:28:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23263 states, 14198 states have (on average 1.3130018312438372) internal successors, (18642), 14630 states have internal predecessors, (18642), 7390 states have call successors, (7390), 1678 states have call predecessors, (7390), 1672 states have return successors, (7415), 7238 states have call predecessors, (7415), 7386 states have call successors, (7415) [2021-11-25 20:28:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23263 states to 23263 states and 33447 transitions. [2021-11-25 20:28:15,533 INFO L78 Accepts]: Start accepts. Automaton has 23263 states and 33447 transitions. Word has length 248 [2021-11-25 20:28:15,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:28:15,534 INFO L470 AbstractCegarLoop]: Abstraction has 23263 states and 33447 transitions. [2021-11-25 20:28:15,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:28:15,535 INFO L276 IsEmpty]: Start isEmpty. Operand 23263 states and 33447 transitions. [2021-11-25 20:28:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-25 20:28:15,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:28:15,544 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] [2021-11-25 20:28:15,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:28:15,545 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)] === [2021-11-25 20:28:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:28:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1326284235, now seen corresponding path program 1 times [2021-11-25 20:28:15,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:28:15,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349055520] [2021-11-25 20:28:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:28:15,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:28:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:28:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-25 20:28:16,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:28:16,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349055520] [2021-11-25 20:28:16,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349055520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:28:16,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:28:16,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:28:16,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472156289] [2021-11-25 20:28:16,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:28:16,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:28:16,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:28:16,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:28:16,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:28:16,146 INFO L87 Difference]: Start difference. First operand 23263 states and 33447 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) [2021-11-25 20:28:20,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:28:22,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:28:25,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:27,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:31,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:42,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:28:45,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:28:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:28:54,974 INFO L93 Difference]: Finished difference Result 42597 states and 61461 transitions. [2021-11-25 20:28:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:28:54,975 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 [2021-11-25 20:28:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:28:55,207 INFO L225 Difference]: With dead ends: 42597 [2021-11-25 20:28:55,207 INFO L226 Difference]: Without dead ends: 42593 [2021-11-25 20:28:55,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:28:55,233 INFO L933 BasicCegarLoop]: 5970 mSDtfsCounter, 5176 mSDsluCounter, 18359 mSDsCounter, 0 mSdLazyCounter, 3127 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 22023 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3127 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:28:55,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 22023 Invalid, 3135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3127 Invalid, 5 Unknown, 0 Unchecked, 37.5s Time] [2021-11-25 20:28:55,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42593 states. [2021-11-25 20:28:57,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42593 to 42425. [2021-11-25 20:28:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42425 states, 25840 states have (on average 1.3128482972136224) internal successors, (33924), 26623 states have internal predecessors, (33924), 13484 states have call successors, (13484), 3141 states have call predecessors, (13484), 3098 states have return successors, (13824), 13132 states have call predecessors, (13824), 13476 states have call successors, (13824) [2021-11-25 20:28:57,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42425 states to 42425 states and 61232 transitions. [2021-11-25 20:28:57,385 INFO L78 Accepts]: Start accepts. Automaton has 42425 states and 61232 transitions. Word has length 257 [2021-11-25 20:28:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:28:57,387 INFO L470 AbstractCegarLoop]: Abstraction has 42425 states and 61232 transitions. [2021-11-25 20:28:57,387 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) [2021-11-25 20:28:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 42425 states and 61232 transitions. [2021-11-25 20:28:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-25 20:28:57,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:28:57,398 INFO L514 BasicCegarLoop]: trace histogram [22, 18, 18, 18, 18, 18, 18, 4, 4, 4, 3, 3, 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] [2021-11-25 20:28:57,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:28:57,398 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)] === [2021-11-25 20:28:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:28:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1422710645, now seen corresponding path program 1 times [2021-11-25 20:28:57,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:28:57,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316977977] [2021-11-25 20:28:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:28:57,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:28:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:28:58,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1419 trivial. 0 not checked. [2021-11-25 20:28:58,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:28:58,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316977977] [2021-11-25 20:28:58,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316977977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:28:58,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:28:58,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:28:58,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606154638] [2021-11-25 20:28:58,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:28:58,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:28:58,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:28:58,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:28:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:28:58,321 INFO L87 Difference]: Start difference. First operand 42425 states and 61232 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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) [2021-11-25 20:29:01,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:29:04,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:07,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:09,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:10,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:11,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:13,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:15,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:20,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:26,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:29:33,310 INFO L93 Difference]: Finished difference Result 42439 states and 61243 transitions. [2021-11-25 20:29:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:29:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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 258 [2021-11-25 20:29:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:29:33,481 INFO L225 Difference]: With dead ends: 42439 [2021-11-25 20:29:33,482 INFO L226 Difference]: Without dead ends: 42345 [2021-11-25 20:29:33,505 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 [2021-11-25 20:29:33,506 INFO L933 BasicCegarLoop]: 5468 mSDtfsCounter, 5369 mSDsluCounter, 14854 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5375 SdHoareTripleChecker+Valid, 18279 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:29:33,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5375 Valid, 18279 Invalid, 2903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2897 Invalid, 5 Unknown, 0 Unchecked, 33.8s Time] [2021-11-25 20:29:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42345 states. [2021-11-25 20:29:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42345 to 42337. [2021-11-25 20:29:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42337 states, 25816 states have (on average 1.3121707468236752) internal successors, (33875), 26575 states have internal predecessors, (33875), 13428 states have call successors, (13428), 3128 states have call predecessors, (13428), 3090 states have return successors, (13772), 13105 states have call predecessors, (13772), 13424 states have call successors, (13772) [2021-11-25 20:29:35,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42337 states to 42337 states and 61075 transitions. [2021-11-25 20:29:35,656 INFO L78 Accepts]: Start accepts. Automaton has 42337 states and 61075 transitions. Word has length 258 [2021-11-25 20:29:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:29:35,657 INFO L470 AbstractCegarLoop]: Abstraction has 42337 states and 61075 transitions. [2021-11-25 20:29:35,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (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) [2021-11-25 20:29:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 42337 states and 61075 transitions. [2021-11-25 20:29:35,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-25 20:29:35,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:29:35,670 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] [2021-11-25 20:29:35,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:29:35,671 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)] === [2021-11-25 20:29:35,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:29:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash 160528995, now seen corresponding path program 1 times [2021-11-25 20:29:35,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:29:35,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774838953] [2021-11-25 20:29:35,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:29:35,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:29:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:29:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2021-11-25 20:29:36,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:29:36,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774838953] [2021-11-25 20:29:36,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774838953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:29:36,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:29:36,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:29:36,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260807182] [2021-11-25 20:29:36,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:29:36,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:29:36,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:29:36,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:29:36,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:29:36,437 INFO L87 Difference]: Start difference. First operand 42337 states and 61075 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) [2021-11-25 20:29:40,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:29:42,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:45,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:29:46,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:02,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:03,860 INFO L93 Difference]: Finished difference Result 98255 states and 141952 transitions. [2021-11-25 20:30:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:03,861 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 [2021-11-25 20:30:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:04,302 INFO L225 Difference]: With dead ends: 98255 [2021-11-25 20:30:04,302 INFO L226 Difference]: Without dead ends: 56414 [2021-11-25 20:30:04,509 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 [2021-11-25 20:30:04,513 INFO L933 BasicCegarLoop]: 8407 mSDtfsCounter, 4686 mSDsluCounter, 5392 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 13044 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:04,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4688 Valid, 13044 Invalid, 2213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2194 Invalid, 4 Unknown, 0 Unchecked, 24.8s Time] [2021-11-25 20:30:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56414 states. [2021-11-25 20:30:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56414 to 56378. [2021-11-25 20:30:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56378 states, 34465 states have (on average 1.3150152328449152) internal successors, (45322), 35468 states have internal predecessors, (45322), 17830 states have call successors, (17830), 4133 states have call predecessors, (17830), 4080 states have return successors, (18250), 17391 states have call predecessors, (18250), 17826 states have call successors, (18250) [2021-11-25 20:30:07,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56378 states to 56378 states and 81402 transitions. [2021-11-25 20:30:07,679 INFO L78 Accepts]: Start accepts. Automaton has 56378 states and 81402 transitions. Word has length 266 [2021-11-25 20:30:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:07,681 INFO L470 AbstractCegarLoop]: Abstraction has 56378 states and 81402 transitions. [2021-11-25 20:30:07,681 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) [2021-11-25 20:30:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 56378 states and 81402 transitions. [2021-11-25 20:30:07,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-25 20:30:07,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:07,696 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] [2021-11-25 20:30:07,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:30:07,697 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)] === [2021-11-25 20:30:07,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:07,698 INFO L85 PathProgramCache]: Analyzing trace with hash -24154664, now seen corresponding path program 1 times [2021-11-25 20:30:07,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:07,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273660648] [2021-11-25 20:30:07,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:07,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1449 trivial. 0 not checked. [2021-11-25 20:30:08,659 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:08,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273660648] [2021-11-25 20:30:08,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273660648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:08,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:08,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:30:08,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078833901] [2021-11-25 20:30:08,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:08,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:30:08,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:08,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:30:08,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:30:08,663 INFO L87 Difference]: Start difference. First operand 56378 states and 81402 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) [2021-11-25 20:30:12,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:30:14,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:16,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:19,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:21,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:24,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:31,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:30:42,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:30:42,131 INFO L93 Difference]: Finished difference Result 137357 states and 198478 transitions. [2021-11-25 20:30:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:30:42,132 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 [2021-11-25 20:30:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:30:42,552 INFO L225 Difference]: With dead ends: 137357 [2021-11-25 20:30:42,552 INFO L226 Difference]: Without dead ends: 81475 [2021-11-25 20:30:42,751 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 [2021-11-25 20:30:42,752 INFO L933 BasicCegarLoop]: 9286 mSDtfsCounter, 5347 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5351 SdHoareTripleChecker+Valid, 13958 SdHoareTripleChecker+Invalid, 2315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:30:42,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5351 Valid, 13958 Invalid, 2315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2306 Invalid, 5 Unknown, 0 Unchecked, 29.7s Time] [2021-11-25 20:30:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81475 states. [2021-11-25 20:30:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81475 to 81421. [2021-11-25 20:30:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81421 states, 49742 states have (on average 1.3152667765670862) internal successors, (65424), 51208 states have internal predecessors, (65424), 25809 states have call successors, (25809), 5942 states have call predecessors, (25809), 5867 states have return successors, (26422), 25155 states have call predecessors, (26422), 25805 states have call successors, (26422) [2021-11-25 20:30:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81421 states to 81421 states and 117655 transitions. [2021-11-25 20:30:47,589 INFO L78 Accepts]: Start accepts. Automaton has 81421 states and 117655 transitions. Word has length 268 [2021-11-25 20:30:47,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:30:47,589 INFO L470 AbstractCegarLoop]: Abstraction has 81421 states and 117655 transitions. [2021-11-25 20:30:47,590 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) [2021-11-25 20:30:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 81421 states and 117655 transitions. [2021-11-25 20:30:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-11-25 20:30:47,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:30:47,611 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] [2021-11-25 20:30:47,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:30:47,611 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)] === [2021-11-25 20:30:47,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:30:47,612 INFO L85 PathProgramCache]: Analyzing trace with hash 490273932, now seen corresponding path program 1 times [2021-11-25 20:30:47,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:30:47,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246650684] [2021-11-25 20:30:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:30:47,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:30:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:30:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2021-11-25 20:30:48,628 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:30:48,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246650684] [2021-11-25 20:30:48,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246650684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:30:48,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:30:48,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:30:48,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837925235] [2021-11-25 20:30:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:30:48,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:30:48,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:30:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:30:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:30:48,632 INFO L87 Difference]: Start difference. First operand 81421 states and 117655 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) [2021-11-25 20:30:53,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:30:57,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:00,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:03,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:05,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:06,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:12,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:14,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:16,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:25,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:31:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:31:41,397 INFO L93 Difference]: Finished difference Result 187097 states and 270490 transitions. [2021-11-25 20:31:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:31:41,398 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 [2021-11-25 20:31:41,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:31:42,315 INFO L225 Difference]: With dead ends: 187097 [2021-11-25 20:31:42,315 INFO L226 Difference]: Without dead ends: 106172 [2021-11-25 20:31:42,589 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 [2021-11-25 20:31:42,590 INFO L933 BasicCegarLoop]: 9284 mSDtfsCounter, 5342 mSDsluCounter, 27037 mSDsCounter, 0 mSdLazyCounter, 5346 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 32526 SdHoareTripleChecker+Invalid, 5353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5346 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:31:42,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5350 Valid, 32526 Invalid, 5353 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 5346 Invalid, 6 Unknown, 0 Unchecked, 47.5s Time] [2021-11-25 20:31:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106172 states. [2021-11-25 20:31:47,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106172 to 106049. [2021-11-25 20:31:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106049 states, 64754 states have (on average 1.315100225468697) internal successors, (85158), 66667 states have internal predecessors, (85158), 33666 states have call successors, (33666), 7712 states have call predecessors, (33666), 7626 states have return successors, (34508), 32816 states have call predecessors, (34508), 33662 states have call successors, (34508) [2021-11-25 20:31:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106049 states to 106049 states and 153332 transitions. [2021-11-25 20:31:48,810 INFO L78 Accepts]: Start accepts. Automaton has 106049 states and 153332 transitions. Word has length 292 [2021-11-25 20:31:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:31:48,811 INFO L470 AbstractCegarLoop]: Abstraction has 106049 states and 153332 transitions. [2021-11-25 20:31:48,812 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) [2021-11-25 20:31:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 106049 states and 153332 transitions. [2021-11-25 20:31:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-25 20:31:48,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:31:48,833 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] [2021-11-25 20:31:48,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:31:48,834 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)] === [2021-11-25 20:31:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:31:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash -470600145, now seen corresponding path program 1 times [2021-11-25 20:31:48,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:31:48,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246391789] [2021-11-25 20:31:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:31:48,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:31:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:31:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2021-11-25 20:31:49,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:31:49,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246391789] [2021-11-25 20:31:49,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246391789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:31:49,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:31:49,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:31:49,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109465173] [2021-11-25 20:31:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:31:49,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:31:49,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:31:49,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:31:49,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:31:49,899 INFO L87 Difference]: Start difference. First operand 106049 states and 153332 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) [2021-11-25 20:31:55,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:31:57,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:31:59,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:32:02,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:32:05,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:09,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:12,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:14,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:15,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:20,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:23,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:27,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:32,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:32:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:32:52,620 INFO L93 Difference]: Finished difference Result 236401 states and 341928 transitions. [2021-11-25 20:32:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:32:52,621 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 [2021-11-25 20:32:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:32:53,441 INFO L225 Difference]: With dead ends: 236401 [2021-11-25 20:32:53,442 INFO L226 Difference]: Without dead ends: 130848 [2021-11-25 20:32:53,818 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 [2021-11-25 20:32:53,818 INFO L933 BasicCegarLoop]: 9269 mSDtfsCounter, 5343 mSDsluCounter, 26997 mSDsCounter, 0 mSdLazyCounter, 5336 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 32480 SdHoareTripleChecker+Invalid, 5348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5336 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:32:53,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5349 Valid, 32480 Invalid, 5348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5336 Invalid, 9 Unknown, 0 Unchecked, 56.2s Time] [2021-11-25 20:32:53,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130848 states. [2021-11-25 20:33:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130848 to 130701. [2021-11-25 20:33:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130701 states, 79790 states have (on average 1.314901616743953) internal successors, (104916), 82150 states have internal predecessors, (104916), 41523 states have call successors, (41523), 9482 states have call predecessors, (41523), 9385 states have return successors, (42594), 40477 states have call predecessors, (42594), 41519 states have call successors, (42594) [2021-11-25 20:33:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130701 states to 130701 states and 189033 transitions. [2021-11-25 20:33:01,832 INFO L78 Accepts]: Start accepts. Automaton has 130701 states and 189033 transitions. Word has length 293 [2021-11-25 20:33:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:01,834 INFO L470 AbstractCegarLoop]: Abstraction has 130701 states and 189033 transitions. [2021-11-25 20:33:01,834 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) [2021-11-25 20:33:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 130701 states and 189033 transitions. [2021-11-25 20:33:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-25 20:33:01,860 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:01,861 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] [2021-11-25 20:33:01,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:33:01,862 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)] === [2021-11-25 20:33:01,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:01,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1362458882, now seen corresponding path program 1 times [2021-11-25 20:33:01,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:33:01,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142765537] [2021-11-25 20:33:01,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:01,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:33:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2021-11-25 20:33:03,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:33:03,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142765537] [2021-11-25 20:33:03,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142765537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:03,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:03,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:33:03,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514149007] [2021-11-25 20:33:03,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:03,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:33:03,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:03,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:33:03,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:33:03,371 INFO L87 Difference]: Start difference. First operand 130701 states and 189033 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) [2021-11-25 20:33:07,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:33:10,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:14,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:17,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:19,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:20,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:22,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:24,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:25,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:30,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:33:49,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:49,790 INFO L93 Difference]: Finished difference Result 190412 states and 276226 transitions. [2021-11-25 20:33:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:33:49,791 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 294 [2021-11-25 20:33:49,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:50,942 INFO L225 Difference]: With dead ends: 190412 [2021-11-25 20:33:50,942 INFO L226 Difference]: Without dead ends: 190410 [2021-11-25 20:33:51,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:33:51,034 INFO L933 BasicCegarLoop]: 5987 mSDtfsCounter, 5122 mSDsluCounter, 18431 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 22081 SdHoareTripleChecker+Invalid, 3179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:51,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5123 Valid, 22081 Invalid, 3179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3172 Invalid, 5 Unknown, 0 Unchecked, 39.8s Time] [2021-11-25 20:33:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190410 states.