./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS --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 a3d1583250bab7d5c6e3cae163663e7ac3704cf0fb6c32d7f6b8a0a0c30f1a49 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:25:11,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:25:11,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:25:11,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:25:11,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:25:11,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:25:11,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:25:11,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:25:11,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:25:11,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:25:11,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:25:11,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:25:11,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:25:11,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:25:11,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:25:11,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:25:11,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:25:11,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:25:11,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:25:11,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:25:11,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:25:11,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:25:11,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:25:11,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:25:11,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:25:11,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:25:11,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:25:11,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:25:11,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:25:11,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:25:11,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:25:11,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:25:11,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:25:11,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:25:11,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:25:11,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:25:11,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:25:11,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:25:11,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:25:11,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:25:11,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:25:11,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:25:11,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:25:11,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:25:11,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:25:11,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:25:11,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:25:11,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:25:11,810 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:25:11,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:25:11,811 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:25:11,811 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:25:11,811 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:25:11,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:25:11,812 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:25:11,812 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:25:11,812 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:25:11,813 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:25:11,813 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:25:11,813 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:25:11,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:25:11,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:25:11,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:25:11,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:25:11,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:25:11,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:25:11,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:25:11,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:25:11,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:25:11,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:25:11,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:25:11,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:11,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:25:11,818 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:25:11,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:25:11,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:25:11,819 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:25:11,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:25:11,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:25:11,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:25:11,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3d1583250bab7d5c6e3cae163663e7ac3704cf0fb6c32d7f6b8a0a0c30f1a49 [2022-11-19 08:25:12,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:25:12,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:25:12,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:25:12,271 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:25:12,272 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:25:12,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-19 08:25:12,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/data/ec8a9c4dc/ba515841bf83457284e3e2eb68686fb7/FLAG46851a775 [2022-11-19 08:25:14,060 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:25:14,062 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-19 08:25:14,195 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/data/ec8a9c4dc/ba515841bf83457284e3e2eb68686fb7/FLAG46851a775 [2022-11-19 08:25:14,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/data/ec8a9c4dc/ba515841bf83457284e3e2eb68686fb7 [2022-11-19 08:25:14,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:25:14,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:25:14,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:14,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:25:14,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:25:14,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:14" (1/1) ... [2022-11-19 08:25:14,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37845b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:14, skipping insertion in model container [2022-11-19 08:25:14,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:25:14" (1/1) ... [2022-11-19 08:25:14,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:25:14,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:25:22,788 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752340,752353] [2022-11-19 08:25:22,793 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752506,752519] [2022-11-19 08:25:22,794 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752670,752683] [2022-11-19 08:25:22,794 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752835,752848] [2022-11-19 08:25:22,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:22,960 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:25:24,010 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752340,752353] [2022-11-19 08:25:24,011 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752506,752519] [2022-11-19 08:25:24,012 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752670,752683] [2022-11-19 08:25:24,013 WARN L234 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_ec844502-adb3-4d9d-9bb8-b32b38c5b026/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[752835,752848] [2022-11-19 08:25:24,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:25:24,627 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:25:24,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24 WrapperNode [2022-11-19 08:25:24,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:25:24,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:24,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:25:24,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:25:24,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:25,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:25,660 INFO L138 Inliner]: procedures = 660, calls = 11700, calls flagged for inlining = 344, calls inlined = 236, statements flattened = 12594 [2022-11-19 08:25:25,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:25:25,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:25:25,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:25:25,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:25:25,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:25,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:25,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:25,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:25:26,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:25:26,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:25:26,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:25:26,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (1/1) ... [2022-11-19 08:25:26,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:25:26,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:25:26,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:25:26,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:25:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:25:26,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:25:26,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:25:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:25:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2022-11-19 08:25:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2022-11-19 08:25:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2022-11-19 08:25:26,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2022-11-19 08:25:26,989 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2022-11-19 08:25:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2022-11-19 08:25:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:25:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:25:26,990 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:25:26,990 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:25:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-19 08:25:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-19 08:25:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2022-11-19 08:25:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2022-11-19 08:25:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2022-11-19 08:25:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2022-11-19 08:25:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:25:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:25:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-19 08:25:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-19 08:25:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2022-11-19 08:25:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2022-11-19 08:25:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2022-11-19 08:25:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2022-11-19 08:25:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:25:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:25:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 08:25:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 08:25:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:25:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:25:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:25:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:25:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:25:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:25:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:25:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:25:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2022-11-19 08:25:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2022-11-19 08:25:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:25:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:25:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-19 08:25:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-19 08:25:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 08:25:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 08:25:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2022-11-19 08:25:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2022-11-19 08:25:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2022-11-19 08:25:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2022-11-19 08:25:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2022-11-19 08:25:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2022-11-19 08:25:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 08:25:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 08:25:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:25:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2022-11-19 08:25:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2022-11-19 08:25:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:25:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:25:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2022-11-19 08:25:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2022-11-19 08:25:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:25:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:25:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2022-11-19 08:25:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2022-11-19 08:25:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2022-11-19 08:25:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2022-11-19 08:25:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:25:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:25:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2022-11-19 08:25:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2022-11-19 08:25:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:25:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:25:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-19 08:25:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-19 08:25:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:25:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:25:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:25:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:25:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:25:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:25:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2022-11-19 08:25:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2022-11-19 08:25:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:25:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:25:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2022-11-19 08:25:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2022-11-19 08:25:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:25:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:25:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:25:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2022-11-19 08:25:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2022-11-19 08:25:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2022-11-19 08:25:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2022-11-19 08:25:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:25:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:25:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:25:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:25:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:25:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:25:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:25:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:25:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 08:25:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 08:25:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:25:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:25:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2022-11-19 08:25:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2022-11-19 08:25:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:25:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:25:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-19 08:25:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2022-11-19 08:25:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2022-11-19 08:25:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2022-11-19 08:25:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2022-11-19 08:25:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2022-11-19 08:25:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2022-11-19 08:25:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2022-11-19 08:25:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:25:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:25:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2022-11-19 08:25:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2022-11-19 08:25:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:25:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:25:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2022-11-19 08:25:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2022-11-19 08:25:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:25:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:25:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:25:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-19 08:25:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-19 08:25:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:25:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2022-11-19 08:25:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2022-11-19 08:25:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:25:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:25:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2022-11-19 08:25:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2022-11-19 08:25:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:25:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-19 08:25:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2022-11-19 08:25:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2022-11-19 08:25:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:25:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:25:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:25:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:25:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2022-11-19 08:25:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2022-11-19 08:25:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2022-11-19 08:25:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2022-11-19 08:25:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-19 08:25:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-19 08:25:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2022-11-19 08:25:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2022-11-19 08:25:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-19 08:25:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-19 08:25:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:25:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:25:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-11-19 08:25:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-11-19 08:25:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2022-11-19 08:25:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2022-11-19 08:25:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2022-11-19 08:25:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2022-11-19 08:25:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 08:25:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 08:25:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:25:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:25:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:25:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:25:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2022-11-19 08:25:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2022-11-19 08:25:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-19 08:25:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-19 08:25:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2022-11-19 08:25:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2022-11-19 08:25:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2022-11-19 08:25:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2022-11-19 08:25:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2022-11-19 08:25:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2022-11-19 08:25:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2022-11-19 08:25:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2022-11-19 08:25:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:25:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:25:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2022-11-19 08:25:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2022-11-19 08:25:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-19 08:25:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2022-11-19 08:25:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2022-11-19 08:25:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2022-11-19 08:25:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2022-11-19 08:25:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2022-11-19 08:25:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2022-11-19 08:25:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2022-11-19 08:25:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:25:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:25:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2022-11-19 08:25:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2022-11-19 08:25:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2022-11-19 08:25:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2022-11-19 08:25:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 08:25:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 08:25:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:25:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:25:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 08:25:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 08:25:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2022-11-19 08:25:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2022-11-19 08:25:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:25:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:25:27,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 08:25:27,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 08:25:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:25:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:25:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 08:25:27,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 08:25:27,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:25:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2022-11-19 08:25:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2022-11-19 08:25:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:25:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:25:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2022-11-19 08:25:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2022-11-19 08:25:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:25:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2022-11-19 08:25:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2022-11-19 08:25:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2022-11-19 08:25:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2022-11-19 08:25:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2022-11-19 08:25:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2022-11-19 08:25:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2022-11-19 08:25:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2022-11-19 08:25:27,031 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2022-11-19 08:25:27,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2022-11-19 08:25:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-19 08:25:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-19 08:25:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:25:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2022-11-19 08:25:27,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2022-11-19 08:25:27,032 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 08:25:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 08:25:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 08:25:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 08:25:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2022-11-19 08:25:27,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2022-11-19 08:25:27,033 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2022-11-19 08:25:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2022-11-19 08:25:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:25:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:25:27,034 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2022-11-19 08:25:27,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2022-11-19 08:25:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:25:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:25:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:25:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:25:27,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:25:27,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:25:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2022-11-19 08:25:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2022-11-19 08:25:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2022-11-19 08:25:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2022-11-19 08:25:27,036 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2022-11-19 08:25:27,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2022-11-19 08:25:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-19 08:25:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-19 08:25:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2022-11-19 08:25:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2022-11-19 08:25:27,037 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:25:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:25:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-19 08:25:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-19 08:25:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 08:25:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 08:25:27,038 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 08:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 08:25:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-11-19 08:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-11-19 08:25:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2022-11-19 08:25:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2022-11-19 08:25:27,039 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2022-11-19 08:25:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2022-11-19 08:25:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2022-11-19 08:25:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2022-11-19 08:25:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:25:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:25:27,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 08:25:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 08:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2022-11-19 08:25:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2022-11-19 08:25:27,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:25:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:25:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2022-11-19 08:25:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2022-11-19 08:25:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2022-11-19 08:25:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2022-11-19 08:25:27,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:25:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:25:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2022-11-19 08:25:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2022-11-19 08:25:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:25:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:25:27,043 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2022-11-19 08:25:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2022-11-19 08:25:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 08:25:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 08:25:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:25:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:25:27,044 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2022-11-19 08:25:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2022-11-19 08:25:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-19 08:25:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2022-11-19 08:25:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-19 08:25:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2022-11-19 08:25:27,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:25:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:25:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:25:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:25:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-19 08:25:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-19 08:25:27,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 08:25:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 08:25:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 08:25:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 08:25:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2022-11-19 08:25:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2022-11-19 08:25:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:25:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:25:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2022-11-19 08:25:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2022-11-19 08:25:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-19 08:25:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2022-11-19 08:25:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2022-11-19 08:25:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2022-11-19 08:25:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2022-11-19 08:25:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:25:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2022-11-19 08:25:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2022-11-19 08:25:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2022-11-19 08:25:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2022-11-19 08:25:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:25:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:25:27,050 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:25:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:25:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2022-11-19 08:25:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2022-11-19 08:25:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2022-11-19 08:25:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2022-11-19 08:25:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 08:25:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 08:25:29,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:25:29,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:25:44,098 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:28:12,275 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:28:17,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:28:17,026 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:28:17,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:17 BoogieIcfgContainer [2022-11-19 08:28:17,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:28:17,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:28:17,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:28:17,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:28:17,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:25:14" (1/3) ... [2022-11-19 08:28:17,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:17, skipping insertion in model container [2022-11-19 08:28:17,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:25:24" (2/3) ... [2022-11-19 08:28:17,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:17, skipping insertion in model container [2022-11-19 08:28:17,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:17" (3/3) ... [2022-11-19 08:28:17,077 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2022-11-19 08:28:17,101 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:28:17,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:28:17,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:28:17,377 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@61a8d44a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:28:17,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:28:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 2665 states, 1654 states have (on average 1.3162031438935913) internal successors, (2177), 1680 states have internal predecessors, (2177), 841 states have call successors, (841), 167 states have call predecessors, (841), 166 states have return successors, (837), 836 states have call predecessors, (837), 837 states have call successors, (837) [2022-11-19 08:28:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 08:28:17,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:17,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 08:28:17,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:28:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:17,422 INFO L85 PathProgramCache]: Analyzing trace with hash -708972878, now seen corresponding path program 1 times [2022-11-19 08:28:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:17,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713854456] [2022-11-19 08:28:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:28:22,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:22,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713854456] [2022-11-19 08:28:22,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713854456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:22,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:22,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:28:22,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55301302] [2022-11-19 08:28:22,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:22,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:28:22,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:28:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:28:22,201 INFO L87 Difference]: Start difference. First operand has 2665 states, 1654 states have (on average 1.3162031438935913) internal successors, (2177), 1680 states have internal predecessors, (2177), 841 states have call successors, (841), 167 states have call predecessors, (841), 166 states have return successors, (837), 836 states have call predecessors, (837), 837 states have call successors, (837) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 08:28:26,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:29,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:32,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:36,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:39,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:41,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:43,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:44,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:47,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:49,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:28:57,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:01,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:04,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:06,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:07,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:07,717 INFO L93 Difference]: Finished difference Result 7415 states and 10822 transitions. [2022-11-19 08:29:07,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:29:07,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-11-19 08:29:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:07,770 INFO L225 Difference]: With dead ends: 7415 [2022-11-19 08:29:07,770 INFO L226 Difference]: Without dead ends: 4753 [2022-11-19 08:29:07,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:29:07,812 INFO L413 NwaCegarLoop]: 4907 mSDtfsCounter, 3157 mSDsluCounter, 13208 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 4 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3164 SdHoareTripleChecker+Valid, 18115 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:07,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3164 Valid, 18115 Invalid, 1343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1332 Invalid, 7 Unknown, 0 Unchecked, 44.7s Time] [2022-11-19 08:29:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2022-11-19 08:29:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4743. [2022-11-19 08:29:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 2942 states have (on average 1.3113528212100611) internal successors, (3858), 2992 states have internal predecessors, (3858), 1490 states have call successors, (1490), 312 states have call predecessors, (1490), 308 states have return successors, (1486), 1474 states have call predecessors, (1486), 1484 states have call successors, (1486) [2022-11-19 08:29:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 6834 transitions. [2022-11-19 08:29:08,229 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 6834 transitions. Word has length 35 [2022-11-19 08:29:08,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:08,230 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 6834 transitions. [2022-11-19 08:29:08,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-19 08:29:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 6834 transitions. [2022-11-19 08:29:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 08:29:08,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:08,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-19 08:29:08,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:29:08,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:29:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:08,236 INFO L85 PathProgramCache]: Analyzing trace with hash 357647548, now seen corresponding path program 1 times [2022-11-19 08:29:08,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:08,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088341796] [2022-11-19 08:29:08,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:08,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:29:11,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:11,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088341796] [2022-11-19 08:29:11,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088341796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:11,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:29:11,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:29:11,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233450733] [2022-11-19 08:29:11,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:11,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:29:11,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:29:11,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:29:11,085 INFO L87 Difference]: Start difference. First operand 4743 states and 6834 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:29:14,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:15,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:17,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:19,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:20,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:25,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:31,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:39,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:41,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:44,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:47,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:50,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:29:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:52,617 INFO L93 Difference]: Finished difference Result 9180 states and 13295 transitions. [2022-11-19 08:29:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:29:52,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-11-19 08:29:52,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:52,709 INFO L225 Difference]: With dead ends: 9180 [2022-11-19 08:29:52,710 INFO L226 Difference]: Without dead ends: 9178 [2022-11-19 08:29:52,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:29:52,721 INFO L413 NwaCegarLoop]: 4591 mSDtfsCounter, 3594 mSDsluCounter, 12684 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3601 SdHoareTripleChecker+Valid, 17275 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:52,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3601 Valid, 17275 Invalid, 1252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1242 Invalid, 7 Unknown, 0 Unchecked, 41.0s Time] [2022-11-19 08:29:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9178 states. [2022-11-19 08:29:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9178 to 9167. [2022-11-19 08:29:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9167 states, 5695 states have (on average 1.3127304653204566) internal successors, (7476), 5794 states have internal predecessors, (7476), 2869 states have call successors, (2869), 612 states have call predecessors, (2869), 600 states have return successors, (2939), 2831 states have call predecessors, (2939), 2857 states have call successors, (2939) [2022-11-19 08:29:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9167 states to 9167 states and 13284 transitions. [2022-11-19 08:29:53,706 INFO L78 Accepts]: Start accepts. Automaton has 9167 states and 13284 transitions. Word has length 40 [2022-11-19 08:29:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:53,706 INFO L495 AbstractCegarLoop]: Abstraction has 9167 states and 13284 transitions. [2022-11-19 08:29:53,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-19 08:29:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9167 states and 13284 transitions. [2022-11-19 08:29:53,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 08:29:53,719 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:53,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-19 08:29:53,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:29:53,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:29:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:53,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1804680370, now seen corresponding path program 1 times [2022-11-19 08:29:53,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:53,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094338173] [2022-11-19 08:29:53,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 08:29:56,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:56,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094338173] [2022-11-19 08:29:56,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094338173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:29:56,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:29:56,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:29:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807455123] [2022-11-19 08:29:56,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:29:56,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:29:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:29:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:29:56,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:29:56,888 INFO L87 Difference]: Start difference. First operand 9167 states and 13284 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:30:02,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:04,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:07,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:10,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:14,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:20,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:23,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:27,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:31,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:36,037 INFO L93 Difference]: Finished difference Result 15654 states and 22624 transitions. [2022-11-19 08:30:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:30:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-11-19 08:30:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:36,157 INFO L225 Difference]: With dead ends: 15654 [2022-11-19 08:30:36,157 INFO L226 Difference]: Without dead ends: 15652 [2022-11-19 08:30:36,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:30:36,173 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 3231 mSDsluCounter, 12011 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 16268 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:36,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 16268 Invalid, 1229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1221 Invalid, 6 Unknown, 0 Unchecked, 38.4s Time] [2022-11-19 08:30:36,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15652 states. [2022-11-19 08:30:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15652 to 15623. [2022-11-19 08:30:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15623 states, 9695 states have (on average 1.3109850438370294) internal successors, (12710), 9855 states have internal predecessors, (12710), 4882 states have call successors, (4882), 1060 states have call predecessors, (4882), 1043 states have return successors, (5000), 4820 states have call predecessors, (5000), 4864 states have call successors, (5000) [2022-11-19 08:30:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15623 states to 15623 states and 22592 transitions. [2022-11-19 08:30:37,294 INFO L78 Accepts]: Start accepts. Automaton has 15623 states and 22592 transitions. Word has length 45 [2022-11-19 08:30:37,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:37,295 INFO L495 AbstractCegarLoop]: Abstraction has 15623 states and 22592 transitions. [2022-11-19 08:30:37,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-19 08:30:37,296 INFO L276 IsEmpty]: Start isEmpty. Operand 15623 states and 22592 transitions. [2022-11-19 08:30:37,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 08:30:37,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:37,300 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:37,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:30:37,301 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:30:37,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:37,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1893822391, now seen corresponding path program 1 times [2022-11-19 08:30:37,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:37,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29568566] [2022-11-19 08:30:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:37,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-19 08:30:40,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:40,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29568566] [2022-11-19 08:30:40,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29568566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:40,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:30:40,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:30:40,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86391017] [2022-11-19 08:30:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:40,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:30:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:30:40,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:30:40,372 INFO L87 Difference]: Start difference. First operand 15623 states and 22592 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 08:30:44,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:46,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:48,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:50,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:53,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:54,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:30:56,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:01,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:07,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:31:10,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:12,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:14,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:18,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:19,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:22,856 INFO L93 Difference]: Finished difference Result 15652 states and 22617 transitions. [2022-11-19 08:31:22,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:31:22,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2022-11-19 08:31:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:22,960 INFO L225 Difference]: With dead ends: 15652 [2022-11-19 08:31:22,960 INFO L226 Difference]: Without dead ends: 15648 [2022-11-19 08:31:22,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:31:22,979 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 3227 mSDsluCounter, 12011 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3232 SdHoareTripleChecker+Valid, 16268 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:22,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3232 Valid, 16268 Invalid, 1228 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1218 Invalid, 8 Unknown, 0 Unchecked, 41.8s Time] [2022-11-19 08:31:23,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15648 states. [2022-11-19 08:31:23,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15648 to 15629. [2022-11-19 08:31:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15629 states, 9700 states have (on average 1.3107216494845362) internal successors, (12714), 9859 states have internal predecessors, (12714), 4882 states have call successors, (4882), 1062 states have call predecessors, (4882), 1044 states have return successors, (5000), 4820 states have call predecessors, (5000), 4864 states have call successors, (5000) [2022-11-19 08:31:24,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15629 states to 15629 states and 22596 transitions. [2022-11-19 08:31:24,083 INFO L78 Accepts]: Start accepts. Automaton has 15629 states and 22596 transitions. Word has length 56 [2022-11-19 08:31:24,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:24,084 INFO L495 AbstractCegarLoop]: Abstraction has 15629 states and 22596 transitions. [2022-11-19 08:31:24,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 08:31:24,085 INFO L276 IsEmpty]: Start isEmpty. Operand 15629 states and 22596 transitions. [2022-11-19 08:31:24,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-19 08:31:24,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:24,087 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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] [2022-11-19 08:31:24,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:31:24,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:31:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash -426984782, now seen corresponding path program 1 times [2022-11-19 08:31:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:24,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090028614] [2022-11-19 08:31:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:24,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-19 08:31:26,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:26,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090028614] [2022-11-19 08:31:26,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090028614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:26,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:26,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:31:26,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397393899] [2022-11-19 08:31:26,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:26,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:31:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:26,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:31:26,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:31:26,592 INFO L87 Difference]: Start difference. First operand 15629 states and 22596 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 08:31:30,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:33,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:31:36,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:31:39,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:40,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:41,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:46,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:48,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:31:55,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:31:58,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:00,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:02,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:06,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:10,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:11,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:11,798 INFO L93 Difference]: Finished difference Result 15654 states and 22617 transitions. [2022-11-19 08:32:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:32:11,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 55 [2022-11-19 08:32:11,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:11,897 INFO L225 Difference]: With dead ends: 15654 [2022-11-19 08:32:11,898 INFO L226 Difference]: Without dead ends: 15356 [2022-11-19 08:32:11,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:32:11,914 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 3231 mSDsluCounter, 12016 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 16276 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:11,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 16276 Invalid, 1226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1214 Invalid, 10 Unknown, 0 Unchecked, 44.6s Time] [2022-11-19 08:32:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2022-11-19 08:32:12,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 15337. [2022-11-19 08:32:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15337 states, 9518 states have (on average 1.3108846396301743) internal successors, (12477), 9672 states have internal predecessors, (12477), 4787 states have call successors, (4787), 1046 states have call predecessors, (4787), 1029 states have return successors, (4908), 4728 states have call predecessors, (4908), 4772 states have call successors, (4908) [2022-11-19 08:32:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15337 states to 15337 states and 22172 transitions. [2022-11-19 08:32:12,997 INFO L78 Accepts]: Start accepts. Automaton has 15337 states and 22172 transitions. Word has length 55 [2022-11-19 08:32:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:12,998 INFO L495 AbstractCegarLoop]: Abstraction has 15337 states and 22172 transitions. [2022-11-19 08:32:12,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 08:32:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 15337 states and 22172 transitions. [2022-11-19 08:32:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 08:32:13,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:13,003 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:13,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:32:13,004 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:32:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1388110729, now seen corresponding path program 1 times [2022-11-19 08:32:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:13,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241701669] [2022-11-19 08:32:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:13,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-19 08:32:17,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:17,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241701669] [2022-11-19 08:32:17,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241701669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:17,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:17,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:17,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849654315] [2022-11-19 08:32:17,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:17,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:17,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:17,528 INFO L87 Difference]: Start difference. First operand 15337 states and 22172 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:32:20,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:22,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:32:24,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:32:26,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:32:28,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:35,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:38,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:41,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:44,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:44,080 INFO L93 Difference]: Finished difference Result 31570 states and 45792 transitions. [2022-11-19 08:32:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:32:44,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2022-11-19 08:32:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:44,181 INFO L225 Difference]: With dead ends: 31570 [2022-11-19 08:32:44,181 INFO L226 Difference]: Without dead ends: 16247 [2022-11-19 08:32:44,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:44,273 INFO L413 NwaCegarLoop]: 3739 mSDtfsCounter, 153 mSDsluCounter, 3545 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:44,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 7284 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 627 Invalid, 5 Unknown, 0 Unchecked, 25.9s Time] [2022-11-19 08:32:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16247 states. [2022-11-19 08:32:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16247 to 15343. [2022-11-19 08:32:45,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15343 states, 9524 states have (on average 1.3106887862242755) internal successors, (12483), 9678 states have internal predecessors, (12483), 4787 states have call successors, (4787), 1046 states have call predecessors, (4787), 1029 states have return successors, (4908), 4728 states have call predecessors, (4908), 4772 states have call successors, (4908) [2022-11-19 08:32:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15343 states to 15343 states and 22178 transitions. [2022-11-19 08:32:45,459 INFO L78 Accepts]: Start accepts. Automaton has 15343 states and 22178 transitions. Word has length 100 [2022-11-19 08:32:45,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:45,462 INFO L495 AbstractCegarLoop]: Abstraction has 15343 states and 22178 transitions. [2022-11-19 08:32:45,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 08:32:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15343 states and 22178 transitions. [2022-11-19 08:32:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-19 08:32:45,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:45,472 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-19 08:32:45,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:32:45,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:32:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:45,473 INFO L85 PathProgramCache]: Analyzing trace with hash -639354852, now seen corresponding path program 1 times [2022-11-19 08:32:45,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:45,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188751509] [2022-11-19 08:32:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:45,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-19 08:32:47,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:47,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188751509] [2022-11-19 08:32:47,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188751509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:47,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:47,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:32:47,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363725780] [2022-11-19 08:32:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:47,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:32:47,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:32:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:32:47,158 INFO L87 Difference]: Start difference. First operand 15343 states and 22178 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-19 08:32:50,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:54,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:32:56,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:32:58,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:00,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:02,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:07,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:11,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:14,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:16,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:17,286 INFO L93 Difference]: Finished difference Result 31582 states and 45804 transitions. [2022-11-19 08:33:17,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:17,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 113 [2022-11-19 08:33:17,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:17,369 INFO L225 Difference]: With dead ends: 31582 [2022-11-19 08:33:17,369 INFO L226 Difference]: Without dead ends: 16253 [2022-11-19 08:33:17,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:33:17,439 INFO L413 NwaCegarLoop]: 3740 mSDtfsCounter, 158 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 7286 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:17,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 7286 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 622 Invalid, 7 Unknown, 0 Unchecked, 29.3s Time] [2022-11-19 08:33:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16253 states. [2022-11-19 08:33:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16253 to 15343. [2022-11-19 08:33:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15343 states, 9524 states have (on average 1.3106887862242755) internal successors, (12483), 9678 states have internal predecessors, (12483), 4787 states have call successors, (4787), 1046 states have call predecessors, (4787), 1029 states have return successors, (4908), 4728 states have call predecessors, (4908), 4772 states have call successors, (4908) [2022-11-19 08:33:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15343 states to 15343 states and 22178 transitions. [2022-11-19 08:33:18,624 INFO L78 Accepts]: Start accepts. Automaton has 15343 states and 22178 transitions. Word has length 113 [2022-11-19 08:33:18,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:18,625 INFO L495 AbstractCegarLoop]: Abstraction has 15343 states and 22178 transitions. [2022-11-19 08:33:18,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-19 08:33:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15343 states and 22178 transitions. [2022-11-19 08:33:18,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-19 08:33:18,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:18,628 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:33:18,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:33:18,629 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:33:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash 289650414, now seen corresponding path program 1 times [2022-11-19 08:33:18,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:18,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466795966] [2022-11-19 08:33:18,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:33:22,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:22,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466795966] [2022-11-19 08:33:22,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466795966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:22,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:22,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:33:22,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174672672] [2022-11-19 08:33:22,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:33:22,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:22,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:33:22,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:22,485 INFO L87 Difference]: Start difference. First operand 15343 states and 22178 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:33:25,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:29,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:34,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:36,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:38,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:40,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:42,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:44,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:33:49,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:51,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:53,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:55,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:33:57,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:03,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:07,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:10,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:14,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:14,403 INFO L93 Difference]: Finished difference Result 15704 states and 22597 transitions. [2022-11-19 08:34:14,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:34:14,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2022-11-19 08:34:14,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:14,465 INFO L225 Difference]: With dead ends: 15704 [2022-11-19 08:34:14,465 INFO L226 Difference]: Without dead ends: 15702 [2022-11-19 08:34:14,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:34:14,477 INFO L413 NwaCegarLoop]: 5520 mSDtfsCounter, 3075 mSDsluCounter, 14424 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3079 SdHoareTripleChecker+Valid, 19944 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:14,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3079 Valid, 19944 Invalid, 1622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1611 Invalid, 9 Unknown, 0 Unchecked, 51.2s Time] [2022-11-19 08:34:14,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15702 states. [2022-11-19 08:34:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15702 to 15655. [2022-11-19 08:34:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15655 states, 9710 states have (on average 1.3092687950566426) internal successors, (12713), 9872 states have internal predecessors, (12713), 4855 states have call successors, (4855), 1100 states have call predecessors, (4855), 1087 states have return successors, (4974), 4792 states have call predecessors, (4974), 4840 states have call successors, (4974) [2022-11-19 08:34:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15655 states to 15655 states and 22542 transitions. [2022-11-19 08:34:15,204 INFO L78 Accepts]: Start accepts. Automaton has 15655 states and 22542 transitions. Word has length 115 [2022-11-19 08:34:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:15,205 INFO L495 AbstractCegarLoop]: Abstraction has 15655 states and 22542 transitions. [2022-11-19 08:34:15,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 08:34:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 15655 states and 22542 transitions. [2022-11-19 08:34:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-19 08:34:15,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:15,207 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:15,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:34:15,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:34:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:15,208 INFO L85 PathProgramCache]: Analyzing trace with hash 551863564, now seen corresponding path program 1 times [2022-11-19 08:34:15,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:15,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806052675] [2022-11-19 08:34:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:15,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:34:17,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:17,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806052675] [2022-11-19 08:34:17,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806052675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:34:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739690834] [2022-11-19 08:34:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:17,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:17,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:17,473 INFO L87 Difference]: Start difference. First operand 15655 states and 22542 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:34:20,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:26,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:28,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:29,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:31,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:33,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:36,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:34:39,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:46,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:50,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:53,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:57,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:57,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:57,691 INFO L93 Difference]: Finished difference Result 17837 states and 25648 transitions. [2022-11-19 08:34:57,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:34:57,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2022-11-19 08:34:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:57,792 INFO L225 Difference]: With dead ends: 17837 [2022-11-19 08:34:57,793 INFO L226 Difference]: Without dead ends: 17835 [2022-11-19 08:34:57,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:34:57,811 INFO L413 NwaCegarLoop]: 3875 mSDtfsCounter, 1706 mSDsluCounter, 11151 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 15026 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:57,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 15026 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 7 Unknown, 0 Unchecked, 39.5s Time] [2022-11-19 08:34:57,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2022-11-19 08:34:58,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 17821. [2022-11-19 08:34:58,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17821 states, 11080 states have (on average 1.3096570397111913) internal successors, (14511), 11245 states have internal predecessors, (14511), 5492 states have call successors, (5492), 1261 states have call predecessors, (5492), 1246 states have return successors, (5625), 5428 states have call predecessors, (5625), 5477 states have call successors, (5625) [2022-11-19 08:34:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17821 states to 17821 states and 25628 transitions. [2022-11-19 08:34:59,006 INFO L78 Accepts]: Start accepts. Automaton has 17821 states and 25628 transitions. Word has length 138 [2022-11-19 08:34:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:59,007 INFO L495 AbstractCegarLoop]: Abstraction has 17821 states and 25628 transitions. [2022-11-19 08:34:59,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 08:34:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 17821 states and 25628 transitions. [2022-11-19 08:34:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 08:34:59,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:59,012 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:34:59,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:34:59,013 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:34:59,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:59,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1443504403, now seen corresponding path program 1 times [2022-11-19 08:34:59,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:59,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76159286] [2022-11-19 08:34:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:35:04,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:04,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76159286] [2022-11-19 08:35:04,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76159286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:04,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:04,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:35:04,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019759212] [2022-11-19 08:35:04,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:04,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:35:04,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:04,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:35:04,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:35:04,999 INFO L87 Difference]: Start difference. First operand 17821 states and 25628 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:35:08,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:10,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:11,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:15,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:17,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:18,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:20,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:22,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:24,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:27,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:30,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:35:35,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:39,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:40,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:42,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:46,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:50,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:53,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:35:58,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:58,772 INFO L93 Difference]: Finished difference Result 18272 states and 26185 transitions. [2022-11-19 08:35:58,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:35:58,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2022-11-19 08:35:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:58,848 INFO L225 Difference]: With dead ends: 18272 [2022-11-19 08:35:58,848 INFO L226 Difference]: Without dead ends: 18270 [2022-11-19 08:35:58,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:35:58,857 INFO L413 NwaCegarLoop]: 4980 mSDtfsCounter, 3607 mSDsluCounter, 13464 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 18444 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:58,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 18444 Invalid, 1443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1430 Invalid, 10 Unknown, 0 Unchecked, 52.8s Time] [2022-11-19 08:35:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18270 states. [2022-11-19 08:35:59,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18270 to 18233. [2022-11-19 08:35:59,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18233 states, 11322 states have (on average 1.3074545133368662) internal successors, (14803), 11501 states have internal predecessors, (14803), 5604 states have call successors, (5604), 1319 states have call predecessors, (5604), 1304 states have return successors, (5737), 5526 states have call predecessors, (5737), 5589 states have call successors, (5737) [2022-11-19 08:36:00,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18233 states to 18233 states and 26144 transitions. [2022-11-19 08:36:00,100 INFO L78 Accepts]: Start accepts. Automaton has 18233 states and 26144 transitions. Word has length 148 [2022-11-19 08:36:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:00,101 INFO L495 AbstractCegarLoop]: Abstraction has 18233 states and 26144 transitions. [2022-11-19 08:36:00,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:36:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 18233 states and 26144 transitions. [2022-11-19 08:36:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-19 08:36:00,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:00,107 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:00,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:36:00,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:36:00,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1426009464, now seen corresponding path program 1 times [2022-11-19 08:36:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:00,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280746030] [2022-11-19 08:36:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:36:02,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:02,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280746030] [2022-11-19 08:36:02,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280746030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:02,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:02,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:36:02,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091302577] [2022-11-19 08:36:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:02,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:36:02,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:36:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:36:02,132 INFO L87 Difference]: Start difference. First operand 18233 states and 26144 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-19 08:36:05,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:07,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:08,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:11,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:14,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:17,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:19,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:21,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:25,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:28,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:31,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:33,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:37,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:41,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:42,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:45,023 INFO L93 Difference]: Finished difference Result 36507 states and 52576 transitions. [2022-11-19 08:36:45,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:36:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 171 [2022-11-19 08:36:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:45,116 INFO L225 Difference]: With dead ends: 36507 [2022-11-19 08:36:45,116 INFO L226 Difference]: Without dead ends: 18288 [2022-11-19 08:36:45,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:36:45,197 INFO L413 NwaCegarLoop]: 3544 mSDtfsCounter, 19 mSDsluCounter, 10604 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 14148 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:45,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 14148 Invalid, 1203 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1193 Invalid, 9 Unknown, 0 Unchecked, 41.9s Time] [2022-11-19 08:36:45,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18288 states. [2022-11-19 08:36:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18288 to 18253. [2022-11-19 08:36:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18253 states, 11337 states have (on average 1.307047719855341) internal successors, (14818), 11516 states have internal predecessors, (14818), 5604 states have call successors, (5604), 1319 states have call predecessors, (5604), 1309 states have return successors, (5747), 5531 states have call predecessors, (5747), 5589 states have call successors, (5747) [2022-11-19 08:36:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18253 states to 18253 states and 26169 transitions. [2022-11-19 08:36:46,386 INFO L78 Accepts]: Start accepts. Automaton has 18253 states and 26169 transitions. Word has length 171 [2022-11-19 08:36:46,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:46,387 INFO L495 AbstractCegarLoop]: Abstraction has 18253 states and 26169 transitions. [2022-11-19 08:36:46,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-19 08:36:46,388 INFO L276 IsEmpty]: Start isEmpty. Operand 18253 states and 26169 transitions. [2022-11-19 08:36:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-19 08:36:46,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:46,396 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:46,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:36:46,397 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:36:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1842718826, now seen corresponding path program 1 times [2022-11-19 08:36:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446028521] [2022-11-19 08:36:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:36:47,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:47,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446028521] [2022-11-19 08:36:47,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446028521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:47,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:47,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:47,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771677800] [2022-11-19 08:36:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:47,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:47,987 INFO L87 Difference]: Start difference. First operand 18253 states and 26169 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:36:50,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:51,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:36:55,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:57,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:59,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:01,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:03,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:04,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:07,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:11,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:13,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:15,805 INFO L93 Difference]: Finished difference Result 36542 states and 52636 transitions. [2022-11-19 08:37:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:15,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 174 [2022-11-19 08:37:15,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:15,873 INFO L225 Difference]: With dead ends: 36542 [2022-11-19 08:37:15,873 INFO L226 Difference]: Without dead ends: 18303 [2022-11-19 08:37:15,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:15,936 INFO L413 NwaCegarLoop]: 3529 mSDtfsCounter, 2 mSDsluCounter, 3524 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7053 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:15,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7053 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 597 Invalid, 7 Unknown, 0 Unchecked, 27.1s Time] [2022-11-19 08:37:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18303 states. [2022-11-19 08:37:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18303 to 18263. [2022-11-19 08:37:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18263 states, 11347 states have (on average 1.3067771217061779) internal successors, (14828), 11526 states have internal predecessors, (14828), 5604 states have call successors, (5604), 1319 states have call predecessors, (5604), 1309 states have return successors, (5747), 5531 states have call predecessors, (5747), 5589 states have call successors, (5747) [2022-11-19 08:37:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18263 states to 18263 states and 26179 transitions. [2022-11-19 08:37:17,062 INFO L78 Accepts]: Start accepts. Automaton has 18263 states and 26179 transitions. Word has length 174 [2022-11-19 08:37:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:17,062 INFO L495 AbstractCegarLoop]: Abstraction has 18263 states and 26179 transitions. [2022-11-19 08:37:17,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 08:37:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 18263 states and 26179 transitions. [2022-11-19 08:37:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-19 08:37:17,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:17,071 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:17,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:37:17,071 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:37:17,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1284076080, now seen corresponding path program 1 times [2022-11-19 08:37:17,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:17,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518408895] [2022-11-19 08:37:17,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:17,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:37:19,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:19,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518408895] [2022-11-19 08:37:19,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518408895] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:37:19,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264910773] [2022-11-19 08:37:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:19,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:19,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:37:19,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:37:19,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec844502-adb3-4d9d-9bb8-b32b38c5b026/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:37:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:24,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 16125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:37:24,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:24,943 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:37:24,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:37:25,394 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-19 08:37:25,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264910773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:37:25,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1534334751] [2022-11-19 08:37:25,434 INFO L159 IcfgInterpreter]: Started Sifa with 145 locations of interest [2022-11-19 08:37:25,434 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:37:25,439 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:37:25,446 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:37:25,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs